CN106565293A - Urban resident household kitchen garbage cyclic utilization system and method - Google Patents

Urban resident household kitchen garbage cyclic utilization system and method Download PDF

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Publication number
CN106565293A
CN106565293A CN201610929586.9A CN201610929586A CN106565293A CN 106565293 A CN106565293 A CN 106565293A CN 201610929586 A CN201610929586 A CN 201610929586A CN 106565293 A CN106565293 A CN 106565293A
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cylinder
urbanite
air
fertilizer
seal closure
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CN106565293B (en
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程建中
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/989—Flow sheets for biological or biochemical treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/04—Garbage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention provides an urban resident household kitchen garbage cyclic utilization system which comprises a dryer, a spiral stirring conveyor, a composting machine, a bucket elevator, a composting tower, a primary screening machine, a belt conveyor , a mixing agitator, a pelletizer, a secondary screening machine, a particle dryer, a tertiary screening machine and a product packaging machine, wherein a siftage outlet of the primary screening machine is connected with the belt conveyor; a siftage outlet of the secondary screening machine is connected with a sealed shaftless screw conveyer; an oversize outlet of the third screening machine is connected with the product packaging machine; an oversize outlet of the primary screening machine is connected with the bucket elevator; and an oversize outlet of the secondary screening machine and a siftage outlet of the third screening machine are connected with the mixing agitator. The invention further provides an urban resident household kitchen garbage cyclic utilization method. The system is clean and environmentally friendly and high in resource utilization degree, can generate various resources including electricity, heat and organic fertilizer and has high comprehensive utilization benefit.

Description

Urbanite's household kitchen wastes cyclic utilization system and method
Technical field
The invention belongs to rubbish from cooking recycle utilization technology field, and in particular to a kind of urbanite's household kitchen wastes are followed Ring utilizes system and method.
Background technology
With the change of the raising of residents water consumption level, energy resource structure and dietary habit, rubbish from cooking is in house refuse In shared ratio raise year by year, in recent years, rubbish from cooking institute in the house refuse in city such as Beijing of report, Shanghai, Tianjin The ratio for accounting for is 41%～63.8%.Rubbish from cooking has high-moisture percentage, low-calorie feature, does not such as obtain appropriate process and profit With and filled, landfill yard appearance can be occupied in a large number, percolate, the secondary pollution such as stench is produced.Due to rubbish from cooking wet basis heat It is worth low, only 2100kJ/kg or so, burning disposal is insufficient to produce the harmful gass such as bioxin.
Original-source by classification and process are carried out to rubbish from cooking just in home unit, house refuse not only can be reduced in community and Council collection, transport and the difficulty for processing, can also manufacture biogas and organic fertilizer, make for power generation and heat supply and agricultural planting With having application in American-European countries.
1. the feature of household kitchen wastes
1.1st, physicochemical characteristicses
Household kitchen wastes have the physicochemical characteristicses that moisture content is high, the content of organic matter is high, oils and fatss and salinity are high.Food waste rubbish The moisture content of rubbish typically 70%～80% or so, brings very big difficulty to its collection, transport and process.Rubbish from cooking has Machine matter content is high, and research shows that the content of organic matter accounts for 93% of its dry or so, and the nutritive element content such as N P and K is higher, makees It is higher for fertilizer recycle value.In rubbish after the meal in rubbish from cooking, oils and salts substances content are high, and research shows thick fat Fat accounts for 28.82%, the NaCl contents of rubbish from cooking dried object and is up to 1.239%.Rubbish from cooking is easily corrupt smelly in addition, grows disease Bacterium, causes transmission of disease.
1.2nd, process target
The target of household kitchen wastes process is mainly resource and minimizing.The resource of household kitchen wastes is wished To the high product of the fertilizer component for not having impurity, safety.And minimizing is by separating from source with other house refuses, it is ensured that The reduction of house refuse total amount, typically can be processed for other house refuse postorders and is provided just with decrement 40%～60% or so Profit and energy-conservation.
1.3rd, process node
For the process node of household kitchen wastes, can be in family, community and end garbage compost factory, anaerobic fermentation factory Carry out.Dutch " Wa Mu " company was once compared to the content of beary metal of compost in four kinds of garbage compost technique.Four kinds of techniques Respectively：(1) composting compost；(2) after by composting screening and magnetic separation, from the Organic substance compost of easily fermentation；(3) go Except inanimate matters such as the glass in rubbish, plastics, and broken rear compost is carried out to rubbish；(4) categorised collection, resident is by house refuse In Organic substance be separately separated out, carry out compost.Outcome research shows that rubbish from cooking is more early individually to be separated, its In composting production, remaining content of beary metal will be lower.The content of beary metal of the kitchen waste compost of original-source by classification is than mixing rubbish The content of beary metal of rubbish compost wants order of magnitude lower.Therefore, a huge sum of money in house refuse can be efficiently controlled by source separation The content of the pollutant such as category.Especially the compost after family is separated to rubbish from cooking, can produce resource value higher Organic fertilizer.
2. the application of household kitchen wastes application technology as the second resource
Developed country is carried out and the nineties in 20th century with the research of disposal technology to the management of rubbish from cooking more, develops into the present It is achieved with many advanced achievements.The country is in waste control and environmental protection project great development period at present, has had a lot The changing food waste treatment plant that one tier 2 cities are set up, carrying out practically situation is had nothing in common with each other, but the rubbish of these changing food waste treatment plants The rubbish from cooking of the large-scale catering industries such as rubbish source, restaurant, hotel, unit dining room and school lunch service mainly from urban district.It is right The problem of state treatment waste oil and water from washing rice pig is made that huge contribution.But carry out for urbanite's household kitchen wastes The process and enterprise of unified receipts fortune and process is more rarely seen.
The content of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, there is provided a kind of city occupies The system that people's household kitchen wastes are recycled.Utilization is circulated to urbanite's household kitchen wastes using the system, no It is only environmental clean, and resources utilization degree is high, can produce the multiple resources such as electricity, heat and fertilizer, with very high synthesis Utilization benefit.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of urbanite's household kitchen wastes are followed Ring utilizes system, it is characterised in that include that the first sealed Shaftless screw conveyor being sequentially connected by pipeline, drum-type are dried Dry machine, stirring screw conveyer, drum-type Composter, bucket elevator, compost tower, the second sealed Shaftless screw conveyor, Screening machine, ribbon conveyer, batch mixing blender, the 3rd sealed Shaftless screw conveyor, comminutor, rescreener, 4th sealed Shaftless screw conveyor, pellet dryer, No. three screening machines and product packing machine；Screening machine, two The discharging opening of secondary screening machine and No. three screening machines includes that oversize outlet and siftage are exported；Under the sieve of screening machine Thing outlet is connected with ribbon conveyer by pipeline, and the siftage outlet of the rescreener is sealed with the 4th by pipeline Shaftless screw conveyor connects, and the oversize outlet of No. three screening machines is connected with product packing machine by pipeline, and described one The oversize outlet of secondary screening machine is connected with bucket elevator by pipeline, and the oversize of the rescreener is exported and three times The siftage outlet of screening machine is connected with batch mixing blender by pipeline, the stirring screw conveyer and aerobic material hopper Connection, the ribbon conveyer are connected with fertilizer hopper.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the rotating drum type drying machine bag Including rack, is rotatablely equipped with thermal dehydration portion and constant temperature de-watering section in the frame, the constant temperature de-watering section is located at thermal dehydration The lower section in portion, is provided with the frame for driving the first rotating drive mechanism that thermal dehydration portion rotates and for driving the The second rotating drive mechanism that two constant temperature de-watering section are rotated, the one end in the thermal dehydration portion is provided with top cylinder feeder, described The other end in thermal dehydration portion is provided with top cylinder guide portion, and one end of the constant temperature de-watering section is provided with lower cylinder feeder, described Lower cylinder feeder is located at the lower section in top cylinder guide portion, the charging aperture of the lower cylinder feeder and the discharging opening phase in top cylinder guide portion Connect, the other end of the constant temperature de-watering section is provided with discharging portion, the charging aperture of the discharging portion and the discharging opening of constant temperature de-watering section Connect；It is connected with the top cylinder guide portion for the thermal source portion to thermal dehydration portion thermal dehydration, on the top cylinder feeder It is connected with for reclaiming thermal dehydration portion waste heat and the waste heat of recovery being passed through the UTILIZATION OF VESIDUAL HEAT IN portion of constant temperature de-watering section, the lower cylinder It is connected with feeder for collecting the tail gas in constant temperature de-watering section and the tail gas of collection being passed through the exhaust collection portion in thermal source portion.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the thermal dehydration portion includes The quick guide section of top cylinder that sets gradually from right to left, preheating evaporator section and micro carbonization section, the quick guide section bag of the top cylinder The first cylinder and the multiple first quick stock guides on the first cylinder inboard wall are included, the outer end of first cylinder is provided with First only expects ring；The preheating evaporator section includes the second cylinder, and multiple first material copy are provided with the inwall of second cylinder Plate and multiple first flights, first copy plate and the first flight interval are laid；The micro carbonization section includes the 3rd Cylinder and multiple second flights on the 3rd cylinder inboard wall, first cylinder, the second cylinder and the 3rd cylinder are Integrative-structure and three is collectively forming upper shell.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the constant temperature de-watering section includes The quick guide section of lower cylinder, constant temperature dewatering period and the cooling discharging section for setting gradually from left to right, the quick guide section bag of the lower cylinder The 4th cylinder and the multiple second quick stock guides on the 4th cylinder inboard wall are included, the outer end of the 4th cylinder is provided with Second only expects ring；The constant temperature dewatering period includes the 5th cylinder, is provided with multiple second material copy on the inwall of the 5th cylinder Plate and multiple 3rd flights, second copy plate and multiple 3rd flights interval are laid；The cooling discharging section includes 6th cylinder and multiple 4th flights on the 6th cylinder inboard wall, the 4th cylinder, the 5th cylinder and the 6th Body is structure as a whole and three is collectively forming lower shell.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that described first rotates driving machine Structure includes first reducing motors, the first minor sprocket, the first big sprocket wheel and the first chain, and first minor sprocket is fixedly mounted on On the output shaft of one reducing motor, first big sprocket wheel is fixedly mounted on upper shell, and the upper shell is tightened and is cased with first Rolling ring, first minor sprocket and the first big sprocket wheel connect to form the first Chain conveyer by the first chain, the first deceleration electricity Machine is arranged in frame, and the first support roller for supporting upper shell to rotate is provided with the frame.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that described second rotates driving machine Structure includes second reducing motors, the second minor sprocket, the second big sprocket wheel and the second chain, and second minor sprocket is fixedly mounted on On the output shaft of two reducing motors, second big sprocket wheel is fixedly mounted on lower shell, and the lower shell is tightened and is cased with second Rolling ring, second minor sprocket and the second big sprocket wheel connect to form the second Chain conveyer by the second chain, the second deceleration electricity Machine is arranged in frame, and the second support roller for supporting lower shell to rotate is provided with the frame.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the top cylinder feeder includes First seal closure and the first Shaftless screw conveyor, first Shaftless screw conveyor are sealingly mounted on the first seal closure, The charging aperture of first Shaftless screw conveyor is located at outside the first seal closure, the discharging opening of first Shaftless screw conveyor In the first seal closure, top cylinder tail gas interface tube and the first maintenance door on first seal closure, are provided with, described first is close Sealing cover is tightly connected with the outer end of the first cylinder.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the top cylinder guide portion includes Second seal closure, the bottom of second seal closure are provided with the first downward guide chute, and the outer end of second seal closure sets High temperature air air intake interface tube is equipped with, the sidepiece of second seal closure is provided with the second maintenance door, second seal closure The inner outer end with the 3rd cylinder is tightly connected.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the lower cylinder feeder includes 3rd seal closure and the second Shaftless screw conveyor, second Shaftless screw conveyor are sealingly mounted on the 3rd seal closure, The charging aperture of second Shaftless screw conveyor is located in the 3rd seal closure, the discharging opening of second Shaftless screw conveyor In the 3rd seal closure, lower cylinder tail gas interface tube and the 3rd maintenance door on the 3rd seal closure, are provided with, the described 3rd is close Sealing cover is tightly connected with the outer end of the 4th cylinder, the discharging opening of the charging aperture of the 3rd seal closure and the first downward guide chute Connect.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the discharging portion includes the 4th Seal closure, the second downward guide chute and the 3rd Shaftless screw conveyor, it is close that the second downward guide chute is arranged on the 4th The bottom of sealing cover, the 3rd Shaftless screw conveyor are obliquely installed, the charging aperture of the 3rd Shaftless screw conveyor and The discharging opening of two downward guide chutes connects, and the outer end of the 4th seal closure is provided with heat exchange air air intake interface tube, institute The inner and the outer end of the 6th cylinder for stating the 4th seal closure is tightly connected.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the thermal source portion includes air Heating furnace chamber and fire prevention brick wall, the fire prevention brick wall are arranged on air-heating furnace intracavity, one end peace in the air-heating furnace chamber Equipped with biogas combustion mouth, the other end in the air-heating furnace chamber is provided with high temperature air discharge pipe, the high temperature air air-out Pipe is connected with high temperature air air intake interface tube.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the UTILIZATION OF VESIDUAL HEAT IN portion includes Gas-gas heat exchange of heat pipe, the first high temperature draught fan and the second high temperature draught fan, the hot air intake of the gas-gas heat exchange of heat pipe It is connected with top cylinder tail gas interface tube by the adapter of top cylinder tail gas, import and the gas-gas heat pipe heat exchanging of first high temperature draught fan Offgas outlet connection after device heat exchange, the outlet of first high temperature draught fan are connected with the top cylinder tail gas discharge for being passed through deodorization tank Pipe；The air intlet of the gas-gas heat exchange of heat pipe is connected with fresh air blast pipe, the gas-gas heat exchange of heat pipe heat exchange Air outlet slit afterwards is connected with the import of the second high temperature draught fan by heat exchange air discharge pipe, second high temperature draught fan Outlet be connected with heat exchange air air intake interface tube.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the exhaust collection portion includes Mixed bellows and third high temperature air-introduced machine, the import of the third high temperature air-introduced machine are connected with the air outlet of mixed bellows, the mixed wind The air inlet of case is connected with lower cylinder tail gas interface tube, and the outlet of the third high temperature air-introduced machine passes through high temperature air mixing wind tube and natural pond Gas burner is connected.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that also ferment including rubbish from cooking Mechanism, the rubbish from cooking fermentation mechanism include the kitchen sink being arranged in urban residential quarters kitchen, are arranged at kitchen water The kitchen waste crushing device in bottom of pond portion and kitchen waste crushing device connection sewer pipe, positioned at urban residential quarters underground and The anaerobic tank that is connected with sewer pipe and the deposit in anaerobic tank is transported to into the fecal suction truck in anaerobic fermentation pond, the anaerobism The top of fermentation vat is provided with biogas collection gas bag, and the bottom in the anaerobic fermentation pond is connected with the lower end of biogas residue screw elevator, The upper end of the biogas residue screw elevator is connected with the first sealed Shaftless screw conveyor by pipeline.
Above-mentioned urbanite's household kitchen wastes cyclic utilization system, it is characterised in that the sieve of a screening machine Hole size is 2mm, and the screen size of the rescreener is 5mm, and the screen size of No. three screening machines is 3mm.
In addition, present invention also offers one kind is circulated utilization to urbanite's household kitchen wastes using said system Method, it is characterised in that the method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are by the first sealed shaftless spiral shell Rotation conveyer is delivered in rotating drum type drying machine, and the high temperature that temperature is 400 DEG C～800 DEG C is then passed through into rotating drum type drying machine Air-flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue is 80%～85%；Institute The material temperature for stating pasty material is 55 DEG C～60 DEG C, and moisture content is 65%～70%；
Step 2, by pasty material described in step one send into stirring screw conveyer in, aerobic bacteria is contained using addition The method of filler carry out aerobic bacteria inoculation, obtain being inoculated with material；Described filler is any in corn straw, wheat straw and bean flesh One or more, the aerobic bacteria is bacillus cereuss, and the biogas residue is 7: 3 with the mass ratio of the filler containing aerobic bacteria, The moisture content of the inoculation material is 60%；
Step 3, by described in step 2 be inoculated with material send into drum-type Composter in, then into drum-type Composter Temperature is passed through for 30 DEG C～35 DEG C, oxygen content is 18%～21% air, and inoculation material is inversely contacted with air, is being turned The speed of rotation of cartridge type Composter is 1r/min, and temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtains Microflora For 3 × 109The aerobic breeding material of individual/g；
Step 4, by described in step 3 it is aerobic breeding material by bucket elevator lifting after send into compost tower in, then Temperature is passed through into compost tower for 30 DEG C～35 DEG C, oxygen content is 18%～21% air, and makes aerobic breeding material and sky QI rising in reverse order is decomposed compost 5～7 days using the natural biology heat of aerobic breeders material is aerobic, obtains curing of compost material to contact；
Step 5, curing of compost material described in step 4 is delivered to once by the second sealed Shaftless screw conveyor Once sieved in screening machine, the oversize for once sieving is back in bucket elevator, by the siftage for once sieving Jing ribbon conveyers are delivered in batch mixing blender, using adding the method for fertilizer to carry out weight gaining process, obtain weight gaining material；Institute Fertilizer is stated for any one in nitrogenous fertilizer, phosphate fertilizer and potash fertilizer or two or more；
Step 6, weight gaining material described in step 5 is delivered in comminutor by the 3rd sealed Shaftless screw conveyor Pelletize, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 15%～20%, the granulated pellet fertilizer Particle mean size is 3mm～6mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener in carry out regrading, will be secondary The oversize of screening is back in batch mixing blender, and the siftage of regrading is defeated by the 4th sealed Shaftless screw conveyor Deliver in pellet dryer, process is dried under conditions of temperature is for 100 DEG C～105 DEG C, obtains dry particle fertilizer；Institute The moisture content for stating dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines in carry out three times screening, by three times The siftage of screening is back in batch mixing blender, and the oversize of three screenings is sent in finished product packing machine carries out finished product bag Dress, obtains biological organic fertilizer.
Above-mentioned method, it is characterised in that urbanite's household kitchen wastes described in step one is obtained Jing after anaerobic fermentation Detailed process to biogas residue is：First, urbanite's household kitchen wastes input is arranged at into the kitchen in urbanite kitchen In pond, urbanite's household kitchen wastes are crushed using the kitchen waste crushing device for being arranged at kitchen sink bottom； Then, the rubbish from cooking Jing sewer pipe after crushing is fallen in anaerobic tank, Jing fecal suction trucks carry out 7 in being transported to anaerobic fermentation pond Anaerobic fermentation more than it, obtains biogas residue；The granularity of urbanite's household kitchen wastes after crushed meets：D100≤ 2mm, D20≤0.03mm。
The present invention has advantages below compared with prior art：
1st, receipts fortune and process of the present invention specialty for urbanite's household kitchen wastes, it is that each household is occupied that its feature is Kitchen waste crushing device is installed in home front yard, is entered the food wastes such as dish leaf, Os Gallus domesticus, fish spicule, leftovers by kitchen waste crushing device Row is crushed to below 2mm granularities, enters anaerobic tank via sewer pipe, realizes flocculation sediment in anaerobic tank and draw clearly collection, transports The fertilizer production of anaerobic fermentation, marsh gas power generation and biogas residue system is carried out to microbial-bacterial fertilizer factory.
2nd, the present invention implements to collect to draw clearly to be advantageous in that change excrement thing does not flow into urban pipe network, at sewage in anaerobic tank Reason factory has deducted the load of sludge accumulation, while avoiding the phenomenon for mixing heavy metal in pipe network, it is ensured that containing a large amount of kitchens The clarity for changing Organic substance in excrement thing of remaining rubbish, can be directly used in agriculture grain with this fertilizer as the fertile raw material production of system In the plantation and production of crop.
3rd, present invention process method is compared with the miniature compost handling process in units of family, Miniature domestic composting process The economic benefit produced for family is atomic, mainly with environmentally-friendly sanitary as motive force, therefore seldom have national family and Community goes to implement miniature compost industry.And the process described in this patent, can be run with enterprises as principal components, with one Urban district permanent resident population is counted for 1,200,000 prefecture-level city, can be collected 300 tons or so of rubbish from cooking daily, can be produced daily through anaerobic fermentation Biogas 7000m3, produce 12 tons of biogas residue system fertilizer daily, 1.4 ten thousand degree or so can be generated electricity.With very high economic benefit, so enterprise will It is happy to using this technique.
4. what, the present invention took is source separation method, by taking prefecture-level city of the urban district permanent resident population for 1,200,000 as an example, often It can be by the Domestic Waste Minimization 46% of more than 800 ton of city；It is annual to save 108 mu of garbage loading embeading land used；Can be government every year Save more than 640 ten thousand yuan of garbage loading embeading expense.It is to solve more effective, the more environmentally friendly mode of domestic waste.Also improve simultaneously , because of the pollution problem that consumer waste filling and embedding is caused to rural area or suburb.
5th, by the enforcement of the present invention, the moisture of life of urban resident rubbish can be declined 36.8%, deducts 46% Organic matter and NaCl compositions, make house refuse become more to be dried, it is easier to burning disposal, the generation of Dui bioxin has fine Mitigation.Therefore this technique can be reciprocal parallel with burning city domestic garbage processing item technique.
6th, in whole system of the present invention, especially with rotating drum type drying machine equipment as core, the equipment is realized in process Effective kill pathogen, increase carbon-nitrogen ratio, removing moisture, the effect of temperature control, are the aerobic bacteria inoculation of post-order process, breed, divide The technology controlling and process such as solution provide the basis of material characteristic.
With reference to the accompanying drawings and examples the present invention is described in further detail.
Description of the drawings
Fig. 1 is the overall structure diagram of urbanite's household kitchen wastes cyclic utilization system of the present invention.
Fig. 2 is the structural representation of rotating drum type drying machine of the present invention.
Fig. 3 is the left view of rotating drum type drying machine of the present invention.
Fig. 4 is the right view of rotating drum type drying machine of the present invention.
Fig. 5 is the structural representation in rotating drum type drying machine thermal dehydration portion of the present invention.
Fig. 6 is the structural representation of rotating drum type drying machine constant temperature de-watering section of the present invention.
Fig. 7 is the axonometric chart in rotating drum type drying machine thermal dehydration portion of the present invention.
Fig. 8 is the axonometric chart of rotating drum type drying machine constant temperature de-watering section of the present invention.
Fig. 9 is the structural representation that rotating drum type drying machine of the present invention preheats evaporator section.
Figure 10 is the structural representation of the micro carbonization section of rotating drum type drying machine of the present invention.
Figure 11 is the frame of rotating drum type drying machine of the present invention, upper shell, lower shell, the first rotating drive mechanism and second turn The installation relation schematic diagram of dynamic drive mechanism.
Figure 12 is the structural representation of rotating drum type drying machine top cylinder feeder of the present invention.
Figure 13 is the structural representation in rotating drum type drying machine top cylinder guide portion of the present invention.
Figure 14 is the structural representation of cylinder feeder under rotating drum type drying machine of the present invention.
Figure 15 is the structural representation of rotating drum type drying machine discharging portion of the present invention.
Figure 16 is the structural representation in rotating drum type drying machine thermal source portion of the present invention.
Figure 17 is the structural representation in rotating drum type drying machine UTILIZATION OF VESIDUAL HEAT IN portion of the present invention.
Figure 18 is the structural representation of the mixed bellows of rotating drum type drying machine of the present invention.
Description of reference numerals:
1-rotating drum type drying machine；2-stirring screw conveyer；2-1-aerobic material hopper；
3-drum-type Composter；4-bucket elevator；5-compost tower；
6-screening machine；7-ribbon conveyer；7-1-fertilizer hopper；
8-batch mixing blender；9-comminutor；10-rescreener；
11-pellet dryer；No. 12-three screening machines；13-product packing machine；
The sealed Shaftless screw conveyor of 15-1-the first；The sealed Shaftless screw conveyor of 15-2-the second；
The sealed Shaftless screw conveyors of 15-3-the 3rd；The sealed Shaftless screw conveyors of 15-4-the 4th；
20-urban residential quarters；20-1-urban residential quarters kitchen；
20-2-kitchen sink；20-3-kitchen waste crushing device；
20-4-sewer pipe；21-anaerobic tank；
22-fecal suction truck；23-anaerobic fermentation pond；
23-1-biogas collection gas bag；23-2-biogas residue screw elevator；
1-1-thermal dehydration portion；1-1-1-upper shell；1-1-11-the first cylinder；
The quick stock guide of 1-1-12-the first；1-1-13-the first only expects ring；1-1-21-the second cylinder；
1-1-22-the first copy plate；1-1-23-the first flight；The cylinders of 1-1-31-the 3rd；
1-1-32-the second flight；1-2-top cylinder feeder；1-2-1-the first seal closure；
1-2-2-the first Shaftless screw conveyor；1-2-3-top cylinder tail gas interface tube；1-2-4-the first maintenance door；
1-3-top cylinder guide portion；1-3-1-the second seal closure；1-3-2-high temperature air air intake interface tube；
The downward guide chute of 1-3-3-the first；1-3-4-the second maintenance door；1-4-lower cylinder feeder；
The seal closures of 1-4-1-the 3rd；1-4-2-the second Shaftless screw conveyor；1-4-3-lower cylinder tail gas interface tube；
The maintenance doors of 1-4-4-the 3rd；1-5-discharging portion；The seal closures of 1-5-1-the 4th；
1-5-2-heat exchange air air intake interface tube；The downward guide chute of 1-5-3-the second；
The Shaftless screw conveyors of 1-5-4-the 3rd；1-6-the first rotating drive mechanism；
1-6-1-first reducing motors；1-6-2-the first minor sprocket；1-6-3-the first big sprocket wheel；
1-6-4-the first chain；1-6-5-the first rolling ring；1-6-6-the first support roller；
1-7-the second rotating drive mechanism；1-7-1-second reducing motors；1-7-2-the second minor sprocket；
1-7-3-the second big sprocket wheel；1-7-4-the second chain；1-7-5-the second rolling ring；
1-7-6-the second support roller；1-8-thermal source portion；1-8-1-biogas combustion mouth；
1-8-2-high temperature air mixing wind tube；1-8-3-air-heating furnace chamber；1-8-4-fire prevention brick wall；
1-8-5-high temperature air discharge pipe；1-9-UTILIZATION OF VESIDUAL HEAT IN portion；1-9-1-fresh air blast pipe；
1-9-2-gas-gas heat exchange of heat pipe；1-9-3-heat exchange air discharge pipe；1-9-4-top cylinder tail gas adapter；
1-9-5-the second high temperature draught fan；1-9-6-top cylinder exhaust emission tube；1-9-7-the first high temperature draught fan；
1-10-1-mixed bellows；1-10-2-third high temperature air-introduced machine；1-11-constant temperature de-watering section；
1-11-1-lower shell；The cylinders of 1-11-11-the 4th；The quick stock guide of 1-11-12-the second；
1-11-13-the second only expects ring；The cylinders of 1-11-21-the 5th；1-11-22-the second copy plate；
The flights of 1-11-23-the 3rd；The cylinders of 1-11-31-the 6th；The flights of 1-11-32-the 4th；
1-12-frame.
Specific embodiment
The structure of urbanite's household kitchen wastes cyclic utilization system of the present invention is stated by embodiment 1.
Embodiment 1
A kind of urbanite's household kitchen wastes cyclic utilization system as shown in Figure 1, including being sequentially connected by pipeline The first sealed Shaftless screw conveyor 15-1, rotating drum type drying machine 1, stirring screw conveyer 2, drum-type Composter 3, bucket Formula elevator 4, compost tower 5, the second sealed Shaftless screw conveyor 15-2, screening machine 6, a ribbon conveyer 7, batch mixing are stirred Mix machine 8, the 3rd sealed Shaftless screw conveyor 15-3, comminutor 9, rescreener 10, the 4th sealed shaftless screw defeated Send machine 15-4, No. 11, three screening machines 12 of pellet dryer and product packing machine 13；Screening machine 6, rescreener 10 Include that oversize outlet and siftage are exported with the discharging opening of No. three screening machines 12；The siftage of screening machine 6 goes out Mouth is connected with ribbon conveyer 7 by pipeline, and the siftage outlet of the rescreener 10 is sealed with the 4th by pipeline Shaftless screw conveyor 15-4 connects, and the oversize outlet of No. three screening machines 12 is connected with product packing machine 13 by pipeline Connect；The oversize outlet of screening machine 6 is connected with bucket elevator 4 by pipeline, the sieve of the rescreener 10 The siftage outlet of upper thing outlet and No. three screening machines 12 is connected with batch mixing blender 8 by pipeline, and the auger is defeated Machine 2 is sent to be connected with aerobic material hopper 2-1, the ribbon conveyer 7 is connected with fertilizer hopper 7-1.
The concrete structure of the rotating drum type drying machine 1 is：As shown in figure 1, the rotating drum type drying machine 1 includes frame 1- 12, thermal dehydration portion 1-1 and constant temperature de-watering section 1-11, the constant temperature de-watering section 1-11 position are rotatablely equipped with frame 1-12 The first rotation for driving thermal dehydration portion 1-1 to rotate is installed on the lower section of thermal dehydration portion 1-1, frame 1-12 Drive mechanism 1-6 and the second rotating drive mechanism 1-7 for driving the second constant temperature de-watering section 1-11 to rotate, the thermal dehydration One end of portion 1-1 is provided with top cylinder feeder 1-2, and the other end of the thermal dehydration portion 1-1 is provided with top cylinder guide portion 1-3, One end of constant temperature de-watering section 1-11 is provided with lower cylinder feeder 1-4, and the lower cylinder feeder 1-4 is located at top cylinder guide portion 1- 3 lower section, the charging aperture of the lower cylinder feeder 1-4 are connected with the discharging opening of top cylinder guide portion 1-3, constant temperature de-watering section 1- 11 other end is provided with discharging portion 1-5, and the charging aperture of the discharging portion 1-5 is connected with the discharging opening of constant temperature de-watering section 1-11； It is connected with the top cylinder guide portion 1-3 for the thermal source portion 1-8 to thermal dehydration portion 1-1 thermal dehydrations, the top cylinder charging It is connected with portion 1-2 for reclaiming thermal dehydration portion 1-1 waste heats and the waste heat of recovery being passed through the waste heat of constant temperature de-watering section 1-11 Using portion 1-9, the tail for collecting the tail gas in constant temperature de-watering section 1-11 and will collect on the lower cylinder feeder 1-4, is connected with Gas is passed through the exhaust collection portion of thermal source portion 1-8.
The dehydrator adopts up-down structure, using top cylinder guide portion 1-3 and lower cylinder feeder 1-4 by thermal dehydration portion 1-1, Material movement and transmission between upper and lower two cylinders of constant temperature de-watering section 1-11, is organically combined into a Coupled motion structure, Make material take their own roads uniform material flow, material curtain, load when the second Shaftless screw conveyor in dough formed choke effect, make The air-flow of the respective inside between lower two cylinders, wind speed, blast are each integral, finally reach the dried to rubbish from cooking. Dehydrator realizes tail gas and fresh air by UTILIZATION OF VESIDUAL HEAT IN portion 1-9 and exhaust collection portion by the use of renewable biogas as fuel Heat exchange, the hot-air of exchange realizes reheating the hot-air for exchanging by thermal source portion 1-8, formed through upper and lower cylinder Half closed circuit torus, finally realize the saving of fuel and the utilization of thermal source；Its result is heat utilization rate up to 83%, energy Loss is only 17%, and biogas usage amount can save 40%～50% with respect to other drying equipments.
Rotating drum type drying machine of the present invention 1 overcome changing food waste material composition complexity, difficulty of transportation, sorting difficulty Greatly, many difficult points such as wet viscosity big, stench, contaminative, complete twice laid recovery, dehydration are realized to changing food waste, is killed Bacterium, micro carbonization, drying, have reached abundant UTILIZATION OF VESIDUAL HEAT IN and have significantly saved the target of fuel energy.Wherein, thermal dehydration portion 1- 1 and constant temperature de-watering section 1-11 be for the dehydration of changing food waste, sterilization, micro carbonization and be dried work space is provided, using up and down Two cylinders of structure form series opposing stream by charging gear；First rotating drive mechanism 1-6 and second is rotated and is driven Mechanism 1-7 is used for driving two cylinders at the uniform velocity rotating Vortex, and reaching makes cylinder roll, copy and turn over and advance material to be transported in cylinder It is dynamic.
As shown in Fig. 5, Fig. 7, Fig. 9 and Figure 10, the thermal dehydration portion 1-1 includes that the top cylinder for setting gradually from right to left is fast Fast guide section, preheating evaporator section and micro carbonization section, the quick guide section of the top cylinder include the first cylinder 1-1-11 and are arranged on The multiple first quick stock guide 1-1-12 on first cylinder 1-1-11 inwalls, the outer end of the first cylinder 1-1-11 is provided with First only expects ring 1-1-13；The preheating evaporator section includes the second cylinder 1-1-21, on the inwall of the second cylinder 1-1-21 Multiple first copy plate 1-1-22 and multiple first flight 1-1-23, the first copy plate 1-1-22 and the first spiral shell are installed Blade 1-1-23 lays at interval；The micro carbonization section includes the 3rd cylinder 1-1-31 and is arranged on the 3rd cylinder 1-1-31 inwalls On multiple second flight 1-1-32, the first cylinder 1-1-11, the second cylinder 1-1-21 and the 3rd cylinder 1-1-31 are Integrative-structure and three is collectively forming upper shell 1-1-1.
For moisture in changing food waste it is high, salinity is high, fatty material is more, in irregular shape, be mingled with inorganic matters (bottle Son, bowls and chopsticks, wood, metal, plastics etc.) complicated material condition under, using counter-flow air dehydration, sterilization, micro carbonization and when being dried, Discrete control charging rate is must take into, fully dispose effect to reach.The quick guide section of top cylinder is by the first quick stock guide 1- 1-12 is sent into upper shell 1-1-1 depths by material in time, it is to avoid piled up in nozzle, it is to avoid leak, excessive；Preheating section adopts little spiral shell Away from the first flight 1-1-23 of helical structure, material advance is slowly advanced, the first copy plate 1-1-22 kicks up material material curtain, just Material is preheated in hot-air, strengthen the moisture evaporation of material；The high temperature that micro carbonization section is close to thermal source portion 1-8 feedings is empty Gas entrance, temperature is at 400 DEG C～800 DEG C, it is easy to which the organic substance in the changing food waste for causing very thin, wall thin is carbonized, and has Beneficial to the carbon content in organic fertilizer, but should not excessively be carbonized and can reduce fertilizer yield.First quick stock guide 1-1-12 and First copy plate 1-1-22 have it is antiwind, easily peelable, without dead angle the characteristics of.
As shown in Fig. 6, Fig. 8, Fig. 9 and Figure 10, constant temperature de-watering section 1-11 includes the lower cylinder for setting gradually from left to right Quick guide section, constant temperature dewatering period and cooling discharging section, the quick guide section of the lower cylinder include the 4th cylinder 1-11-11 and installation The multiple second quick stock guide 1-11-12 on the 4th cylinder 1-11-11 inwalls, the outer end of the 4th cylinder 1-11-11 It is provided with second and only expects ring 1-11-13；The constant temperature dewatering period includes the 5th cylinder 1-11-21, the 5th cylinder 1-11-21 Inwall on multiple second copy plate 1-11-22 and multiple 3rd flight 1-11-23, the second copy plate 1- are installed 11-22 and multiple 3rd flight 1-11-23 lays at interval；The cooling discharging section includes the 6th cylinder 1-11-31 and installation Multiple 4th flight 1-11-32 on the 6th cylinder 1-11-31 inwalls, the 4th cylinder 1-11-11, the 5th cylinder 1- 11-21 and the 6th cylinder 1-11-31 is structure as a whole and three is collectively forming lower shell 1-11-1.
Wherein, the internal structure of constant temperature dewatering period is identical with the internal structure of preheating evaporator section, the inside of cooling discharging section Structure is identical with the internal structure of micro carbonization section.The material got off from thermal dehydration portion 1-1 initially enters the quick guide of lower cylinder Section, under Jing, the second of the quick guide section of cylinder the quick stock guide 1-11-12 sends into constant temperature dewatering period, is dehydrated in constant temperature dewatering period again Afterwards, material was progressively lowered the temperature with the time, and pushed to discharging portion 1-5.Second quick stock guide 1-11-12 and the second copy plate 1- 11-22 have it is antiwind, easily peelable, without dead angle the characteristics of.
As shown in figure 11, the first rotating drive mechanism 1-6 includes first reducing motors 1-6-1, the first minor sprocket 1- 6-2, the first big sprocket wheel 1-6-3 and the first chain 1-6-4, the first minor sprocket 1-6-2 are fixedly mounted on first reducing motors On the output shaft of 1-6-1, first big sprocket wheel 1-6-3 is fixedly mounted on upper shell 1-1-1, on the upper shell 1-1-1 First rolling ring 1-6-5 is cased with tightly, the first minor sprocket 1-6-2 and the first big sprocket wheel 1-6-3 are connected by the first chain 1-6-4 The first Chain conveyer is formed, first reducing motors 1-6-1 are arranged in frame 1-1-12, are provided with frame 1-1-12 For the first support roller 1-6-6 for supporting upper shell 1-1-1 to rotate.During use, the first chainlet is driven by first reducing motors 1-6-1 Wheel 1-6-2 is rotated, and the first minor sprocket 1-6-2 drives the first big sprocket wheel 1-6-3 to rotate by the first chain 1-6-4, the first big chain Wheel 1-6-3 drives upper shell 1-1-1 to rotate.
As shown in figure 11, the second rotating drive mechanism 1-7 includes second reducing motors 1-7-1, the second minor sprocket 1- 7-2, the second big sprocket wheel 1-7-3 and the second chain 1-7-4, the second minor sprocket 1-7-2 are fixedly mounted on second reducing motors On the output shaft of 1-7-1, second big sprocket wheel 1-7-3 is fixedly mounted on lower shell 1-11-1, the lower shell 1-11-1 Tighten and be cased with the second rolling ring 1-7-5, the second minor sprocket 1-7-2 and the second big sprocket wheel 1-7-3 are connected by the second chain 1-7-4 Connect to form the second Chain conveyer, second reducing motors 1-7-1 are arranged in frame 1-1-12, install in frame 1-1-12 There is the second support roller 1-7-6 for supporting lower shell 1-11-1 to rotate.During use, second is driven by second reducing motors 1-7-1 Minor sprocket 1-7-2 is rotated, and the second minor sprocket 1-7-2 drives the second big sprocket wheel 1-7-3 to rotate by the second big sprocket wheel 1-7-3, the Two big sprocket wheels 1-7-3 drive lower shell 1-11-1 to rotate.
As shown in figure 12, the top cylinder feeder 1-2 includes the first seal closure 1-2-1 and the first Shaftless screw conveyor 1- 2-2, the first Shaftless screw conveyor 1-2-2 are sealingly mounted on the first seal closure 1-2-1, and first shaftless screw is defeated The charging aperture of machine 1-2-2 is sent to be located at outside the first seal closure 1-2-1, the discharging opening position of the first Shaftless screw conveyor 1-2-2 In the first seal closure 1-2-1, the maintenance of top cylinder tail gas interface tube 1-2-3 and first on the first seal closure 1-2-1, is provided with Door 1-2-4, the first seal closure 1-2-1 are tightly connected with the outer end of the first cylinder 1-1-11.
Top cylinder feeder 1-2 in one end of thermal dehydration portion 1-1, by the first shaftless screw convey the charging aperture of 1-2-2 with External conveying equipment interconnection, can send into changing food waste in upper shell 1-1-1.The discharging of the first Shaftless screw conveyor 1-2-2 Mouth plays closed waste odor in the first seal closure 1-2-1, ensures blast, wind speed and the wind of device interior working gas Amount is not leaked, while playing even feeding effect；First Shaftless screw conveyor 1-2-2 using without axle construction, as far as possible The changing food waste for avoiding complexity occurs blocking phenomenon in course of conveying.Top cylinder tail gas interface tube 1-2-3 is for sharp with waste heat Docked with the pipeline of portion 1-9, the setting of the first maintenance door 1-2-4 greatly facilitates the daily inspection service work of equipment.Separately Outward, the first seal closure 1-2-1 can carry heat-insulation layer and labyrinth type cylinder sealing ring, and the equipment heat waste of making is even lower.
As shown in figure 13, the top cylinder guide portion 1-3 includes the second seal closure 1-3-1, the second seal closure 1-3-1's Bottom is provided with the first downward guide chute 1-3-3, and the outer end of the second seal closure 1-3-1 is provided with high temperature air blast pipe The sidepiece of interface 1-3-2, the second seal closure 1-3-1 is provided with the second maintenance door 1-3-4, the second seal closure 1-3-1 The inner be tightly connected with the outer end of (1-1-31).The other ends of the top cylinder guide portion 1-3 in thermal dehydration portion 1-1, the second sealing Cover 1-3-1 is used to seal upper shell 1-1-1, and high temperature air air intake interface tube 1-3-2 is used to connect thermal source portion 1-8, and first is downward Guide chute 1-3-3 is used to connect lower cylinder feeder 1-4.
As shown in figure 14, the lower cylinder feeder 1-4 includes the 3rd seal closure 1-4-1 and the second Shaftless screw conveyor 1- 4-2, the second Shaftless screw conveyor 1-4-2 are sealingly mounted on the 3rd seal closure 1-4-1, and second shaftless screw is defeated The charging aperture of machine 1-4-2 is sent to be located in the 3rd seal closure 1-4-1, the discharging opening position of the second Shaftless screw conveyor 1-4-2 In the 3rd seal closure 1-4-1, on the 3rd seal closure 1-4-1, lower cylinder tail gas interface tube 1-4-3 and the 3rd maintenance are provided with Door 1-4-4, the outer end of the 3rd seal closure 1-4-1 and the 4th cylinder 1-11-11 are tightly connected, the 3rd seal closure 1-4- The discharging opening of 1 charging aperture guide chute 1-3-3 downward with first connects.
Changing food waste is sent by lower cylinder feeder 1-4 in one end of lower shell 1-11-1, the second Shaftless screw conveyor 1-4-2 Enter in lower shell 1-11-1.The discharging opening of the second Shaftless screw conveyor 1-4-2 plays close in the 3rd seal closure 1-4-1 Waste odor is closed, ensures that blast, wind speed and the air quantity of device interior working gas are not leaked, while playing even feeding work With；Second Shaftless screw conveyor 1-4-2 avoids the changing food waste of complexity in course of conveying as far as possible using without axle construction In there is blocking phenomenon.The setting of the 3rd maintenance door 1-4-4 greatly facilitates the daily inspection service work of equipment.In addition, 3rd seal closure 1-4-1 is used to seal lower shell 1-11-1, and the 3rd seal closure 1-4-1 can carry heat-insulation layer and labyrinth type cylinder Sealing ring, the equipment heat waste of making are even lower.
As shown in figure 15, the discharging portion 1-5 includes the 4th seal closure 1-5-1, the second downward guide chute 1-5-3 and Three Shaftless screw conveyor 1-5-4, the second downward guide chute 1-5-3 are arranged on the bottom of the 4th seal closure 1-5-1, institute State the 3rd Shaftless screw conveyor 1-5-4 to be obliquely installed, the charging aperture of the 3rd Shaftless screw conveyor 1-5-4 and second to The discharging opening of lower guide chute 1-5-3 connects, and the outer end of the 4th seal closure 1-5-1 is provided with heat exchange air blast pipe and connects Mouth 1-5-2, the inner of the 4th seal closure 1-5-1 is tightly connected with the outer end of the 6th cylinder 1-11-31.Heat exchange air enters Duct collar 1-5-2 is used to connect UTILIZATION OF VESIDUAL HEAT IN portion 1-9, the second downward guide chute 1-5-3 and the 3rd Shaftless screw conveyor 1-5-4 is for other equipment that the changing food waste baked is discharged and is delivered to beyond this equipment.4th seal closure 1-5-1 is used In sealing lower shell 1-11-1, the 4th seal closure 1-5-1 can carry heat-insulation layer and labyrinth type cylinder sealing ring, make equipment heat waste It is even lower.
As shown in figure 16, the thermal source portion 1-8 includes air-heating furnace chamber 1-8-3 and fire prevention brick wall 1-8-4, the fire prevention Brick wall 1-8-4 is arranged in the 1-8-3 of air-heating furnace chamber, and one end of the air-heating furnace chamber 1-8-3 is provided with biogas combustion The other end of mouth 1-8-1, the air-heating furnace chamber 1-8-3 is provided with high temperature air discharge pipe 1-8-5, and the high temperature air goes out Airduct 1-8-5 is connected with high temperature air air intake interface tube 3-2.Thermal source portion 1-8 is by high temperature air discharge pipe 1-8-5 by 400 DEG C The high enthalpy hot-air of～800 DEG C of high temperature sends into upper shell 1-1-1, for preheating, evaporating, sterilize, micro carbonization changing food waste.
As shown in figure 17, the UTILIZATION OF VESIDUAL HEAT IN portion 1-9 includes gas-gas heat exchange of heat pipe 1-9-2, the first high temperature draught fan 1- 9-7 and the second high temperature draught fan 1-9-5, the hot air intake of the gas-gas heat exchange of heat pipe 1-9-2 pass through top cylinder tail gas adapter 1- 9-4 is connected with top cylinder tail gas interface tube 2-3, import and the gas-gas heat exchange of heat pipe 1-9- of first high temperature draught fan 1-9-7 Offgas outlet connection after 2 heat exchange, the outlet of first high temperature draught fan 1-9-7 are connected with the top cylinder tail gas for being passed through deodorization tank Discharge pipe 1-9-6；The air intlet of the gas-gas heat exchange of heat pipe 1-9-2 is connected with fresh air blast pipe 1-9-1, described Air outlet slit after gas-gas heat exchange of heat pipe 1-9-2 heat exchange passes through heat exchange air discharge pipe 1-9-3 and the second high temperature draught fan The import connection of 1-9-5, the outlet of second high temperature draught fan 1-9-5 are connected with heat exchange air air intake interface tube 1-5-2. By UTILIZATION OF VESIDUAL HEAT INs of the gas-gas heat exchange of heat pipe 1-9-2 to upper shell 1-1-1 tail gas, natural fresh air is heated to into 115 DEG C Left and right, then heat exchange air is blown into into lower shell 1-11-1 by the air outlet slit of gas-gas heat exchange of heat pipe 1-9-2, for isothermal Humid enthalpy exchanges the work that is further dehydrated to changing food waste and lowered the temperature.
Such as Fig. 2 and as shown at 13, the exhaust collection portion includes mixing bellows 1-10-1 and third high temperature air-introduced machine 1-10-2, The import of the third high temperature air-introduced machine 1-10-2 is connected with the air outlet of mixed bellows 1-10-1, and the mixed bellows 1-10-1's enters Air port is connected with lower cylinder tail gas interface tube 1-4-3, and the outlet of the third high temperature air-introduced machine 1-10-2 is by the mixed wind of high temperature air Pipe 1-8-2 is connected with biogas combustion mouth 1-8-1.Air pressurized is accelerated through mixed bellows 1-10-1, and it is empty to supplement proper amount of fresh After gas, blasting biogas combustion mouth 1-8-1 and reaching carries out combustion-supporting work with the optimum mixture ratio of biogas.
As shown in figure 1, rubbish from cooking cyclic utilization system of the present invention also includes rubbish from cooking fermentation mechanism, the food waste rubbish Rubbish fermentation mechanism includes the kitchen sink 20-2 being arranged in the 20-1 of urban residential quarters kitchen, is arranged at kitchen sink 20-2 bottoms The sewer pipe 20-4, little positioned at urbanite of the kitchen waste crushing device 20-3 and kitchen waste crushing device 20-3 connection in portion 20 underground of area and the anaerobic tank 21 that is connected with sewer pipe 20-4 and the deposit in anaerobic tank 21 is transported to into anaerobic fermentation pond Fecal suction truck 22 in 23, the top in the anaerobic fermentation pond 23 are provided with biogas collection gas bag 23-1, the anaerobic fermentation pond 23 Bottom is connected with the lower end of biogas residue screw elevator 23-2, and the upper end of the biogas residue screw elevator 23-2 passes through pipeline and first Sealed Shaftless screw conveyor 15-1 connections.
The present invention arranges rubbish from cooking fermentation mechanism, and what which was taken is the method for source separation, to urban residential quarters 20 Produced rubbish from cooking is collected and ferments, and the biogas residue of generation is carried out a series of process, organic bio-fertilizer is finally given. The biogas for being generated can be used for marsh gas power generation, can also carry out that system is personal (to be such as powered for each structural member in system Or heat supply) or grid-connected sale.According to conservative estimation, by taking prefecture-level city of the urban district permanent resident population for 1,200,000 as an example, daily can be by city The Domestic Waste Minimization 46% of more than 800 ton of city；It is annual to save 108 mu of garbage loading embeading land used；More than 640 can be saved for government every year Ten thousand yuan of garbage loading embeading expense.It is to solve more effective, the more environmentally friendly mode of domestic waste.Also improve simultaneously, because of life The pollution problem that garbage loading embeading is caused to rural area or suburb.
Preferably, the screen size of a screening machine 6 is 2mm, and the screen size of the rescreener 10 is 5mm, the screen size of No. three screening machines 12 is 3mm.
The method that urbanite's household kitchen wastes of the present invention are recycled is stated to embodiment 5 by embodiment 2.
Embodiment 2
With reference to Fig. 1, the present embodiment is circulated profit to urbanite's household kitchen wastes using system as described in Example 1 Method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are by the first sealed shaftless spiral shell Rotation conveyer 15-1 is delivered in rotating drum type drying machine 1, and the high temperature that temperature is 500 DEG C is then passed through into rotating drum type drying machine 1 Air-flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue is 83%；The pulpous state The material temperature of material is 56 DEG C, and moisture content is 67%；
Urbanite's household kitchen wastes described in the present embodiment obtains the detailed process of biogas residue Jing after anaerobic fermentation：It is first First, in kitchen sink 20-2 urbanite's household kitchen wastes input being arranged in the 20-1 of urban residential quarters kitchen, profit Urbanite's household kitchen wastes are crushed with the kitchen waste crushing device 20-3 for being arranged at kitchen sink 20-2 bottoms；So Afterwards, the rubbish from cooking Jing sewer pipe 20-4 after crushing is fallen in anaerobic tank 21, Jing fecal suction trucks 22 are transported to anaerobic fermentation pond The anaerobic fermentation of more than 7 days is carried out in 23, biogas residue is obtained；The granularity of urbanite's household kitchen wastes after crushed meets： D100≤ 2mm, D20≤0.03mm。
The present invention is classified from source by the rubbish of each urban residential quarters 20, to urban residential quarters kitchen 20-1 Produced rubbish from cooking falls into cell anaerobic tank 21 after carrying out crushing, and being then transported to biogas plant carries out anaerobic fermentation, gained Biogas makees the purposes such as heating generating, and biogas residue Jing the present embodiment is processed, and realizes whole recyclings of waste rubbish.
With reference to Fig. 2 to Figure 18, the operation principle of the rotating drum type drying machine 1 is：First is adopted inside thermal dehydration portion 1-1 Changing food waste is imported upper shell 1-1-1 depths by quick stock guide 1-1-12, and the first copy plate 1-1-22 is by upper shell 1-1-1 Changing food waste uniformly throw to form material curtain, slowly advanced by the first flight 1-1-23 forward when rubbish material falls, again Thrown by the first copy plate 1-1-22, so renewed.Changing food waste after heated de-watering section 1-1 is processed enters top cylinder guide portion The first downward guide chute 1-3-3 of 1-3, subsequently into the second Shaftless screw conveyor 1-4-2 of lower cylinder feeder 1-4, by Second Shaftless screw conveyor 1-4-2 delivers to changing food waste in de-watering section lower shell 1-11-1.Inside constant temperature de-watering section 1-11 Changing food waste is imported by lower shell 1-11-1 depths using the second quick stock guide 1-11-12, the second copy plate 1-11-22 is by under Changing food waste in cylinder 1-11-1 is uniformly thrown to form material curtain, when rubbish material falls by the 3rd flight 1-11-23 forward Slowly advance, thrown by the second copy plate 1-11-22 again, so renewed, material at the uniform velocity advances, until entering discharging portion 1-5 The second downward guide chute 1-5-3, by the 3rd Shaftless screw conveyor 1-5-4 by the changing food waste baked discharge and it is defeated Other fertilizer production apparatus beyond this equipment are delivered to, into lower operation.While changing food waste passes in and out top cylinder feeder 1-2, by The biogas combustion mouth 1-8-1 of thermal source portion 1-8 lights biogas, by the mixed bellows 1-10-1 and third high temperature air inducing in exhaust collection portion Machine 1-10-2 by the lower cylinder tail gas interface tube docking of lower cylinder feeder 1-4, through stokehold mixed bellows 1-10-1 to air pressurized After accelerating and supplementing proper amount of fresh air, blast biogas combustion mouth 1-8-1 and reach optimum mixture ratio with biogas, carry out combustion-supporting work Make, make biogas combustion more complete, calorific value higher.The lower cylinder tail gas that flame is blasted with bypass is filled in the 1-8-3 of air-heating furnace chamber Divide Hybrid Heating, become the high enthalpy hot blast of nonflame high temperature after fire wall, hot blast is through high temperature air discharge pipe and guide portion High temperature air air intake interface tube, into upper shell 1-1-1, in cylinder hot blast through the changing food waste material curtain kicked up by copy plate, Reach micro carbonization, sterilization, evaporation, the work purpose of preheating.Hot blast is exchanged through the humid enthalpy with material, becomes high water capacity 130 DEG C of top cylinder tail gas, top cylinder tail gas interface tube 1-2-3 of the top cylinder tail gas through top cylinder feeder 1-2, into UTILIZATION OF VESIDUAL HEAT IN portion 1- 9 gas-gas heat exchange of heat pipe 1-9-2, being expelled to condensation reservoir by the top cylinder exhaust emission tube 1-9-6 of UTILIZATION OF VESIDUAL HEAT IN portion 1-9 is carried out Deodorization.By UTILIZATION OF VESIDUAL HEAT INs of the gas-gas heat exchange of heat pipe 1-9-2 to top cylinder tail gas, by natural fresh air be heated to 115 DEG C it is left The right side, then lower shell 1-11-1 is imported by heat exchange air discharge pipe 1-9-3, for carrying out isothermal with material in lower shell 1-11-1 Humid enthalpy is exchanged, and be further dehydrated to changing food waste and lowered the temperature work, and heat exchange air becomes lower cylinder tail gas afterwards.Lower cylinder Lower cylinder tail gas interface tube 1-4-3 of the tail gas through lower cylinder feeder 1-4, enters mixed bellows 1-10-1, a small amount of through mix supplement After fresh air, taken away by third high temperature air-introduced machine 1-10-2, blast biogas combustion mouth 1-8-1 and reach and mix with the optimal of biogas Than carrying out combustion-supporting work.Above-mentioned cyclic process is so carried out, the dehydration to changing food waste, sterilization, micro carbonization is completed and is being done While dry work, preheating is taken full advantage of, biogas usage amount is made less than the 40%～50% of traditional drying equipment；
Step 2, by pasty material described in step one send into stirring screw conveyer 2 in, by aerobic material hopper 2- 1 adds the filler smashed into stirring screw conveyer 2, and is implanted into consumption for the good of pasty material and filler gross weight 0.5% Oxygen microbial inoculum, makes microbial inoculum, filler mix with pasty material fully by stirring, obtains being inoculated with material, is into subsequent processing rotating cylinder Amount reproduction is carried out in formula Composter 3 ready；Described filler is corn straw, wheat straw or bean flesh；The biogas residue and filler Mass ratio be 7: 3, it is described inoculation material moisture content be 60%；The type of the aerobic microbial inoculum is bacillus cereuss, described good Oxygen microbial inoculum is commercially available, can also be prepared by the following method and obtain：In the rear operation compost tower of the method for the invention, The compost megathermal period of aerobic bacteria amount reproduction and decomposing organic matter, bacterium sample is gathered from tower, using beef-protein medium Culture of isolated goes out 10 bacillus, is cultivated using triangular flask liquid shaking table respectively, then using solid fermentation (culture medium：50% Testa Tritici, 20% wood flour, 29% rice straw powder, 1% Gypsum Fibrosum, water content 50%) amplification culture, product vacuum lyophilization after culture, Fermenting agent is made, with plastic bag sealing, is kept in dark place in 0～4 DEG C of refrigerator, as the standby aerobic of the addition of inoculation stirring later Microbial inoculum；
Step 3, material will be inoculated with described in step 2 and sends in drum-type Composter 3, then to drum-type Composter 3 Temperature is passed through inside for 30 DEG C, oxygen content is 21% air, and inoculation material is inversely contacted with air, in drum-type Composter 3 speed of rotation is 1r/min, and in cylinder, temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtain Microflora for 3 × 109The aerobic breeding material of individual/g；
Step 4, aerobic breeding material described in step 3 is lifted by bucket elevator 4 after send in compost tower 5, so Temperature is passed through for 30 DEG C in backward compost tower 5, oxygen content is 21% air, and aerobic breeding material is inversely connect with air Touch, decompose compost 5 days using the natural biology heat of aerobic breeders material is aerobic, obtain curing of compost material；
Step 5, curing of compost material described in step 4 is delivered to by the second sealed Shaftless screw conveyor 15-2 Once sieved in screening machine 6, the oversize for once sieving is back in bucket elevator 4, by what is once sieved Siftage Jing ribbon conveyers 7 are delivered in batch mixing blender 8, utilize fertilizer hopper 7-1 to add for increasing the fertilizer of fertilizer efficiency, Obtain weight gaining material；In actual production process, determined according to the actual carbon-nitrogen ratio of fertilizer (C/N), carry out allocating the tret of fertilizer； For example：Be intended to adopt addition carbamide or sulphur ammonium to adjust carbon-nitrogen ratio C/N of fertilizer, the carbon-nitrogen ratio (C/N) of fertilizer is made than wide increasing Plus reach 30:1.Carbon/nitrogen ratio (C/N) computational methods citing：The phosphorus content of wheat straw is 47.03%, and nitrogen content is 0.48%, is passed through Can be calculated：Phosphorus content=1000 in the wheat straw of 1000kg × 0.4703=470.3kg, it is nitrogenous in the wheat straw of 1000kg =1000 × 0.0048=4.8kg of amount.If the carbon-nitrogen ratio of bank is 30 on request:1, then bank should have total nitrogen= 470.3/30=15.68kg, still need supplementary nitrogen quantity=15.68-4.8=10.88kg, and the nitrogen of deficiency is supplemented such as with carbamide, Amount of urea should be:10.88/46%=23.65kg.For another example：The phosphorus content of corn stalk is 42.3%, and nitrogen content is 0.48%, By can be calculated：Phosphorus content=1000 in the corn stalk of 1000kg × 0.423=423kg, in the corn stalk of 1000kg Nitrogen content=1000 × 0.0048=4.8kg.If the carbon-nitrogen ratio of bank is 30 on request:1, then bank should have total nitrogen Amount=423/30=14.1kg, still need supplementary nitrogen quantity=14.1-4.8=9.3kg, and the nitrogen of deficiency, urine are supplemented such as with carbamide Plain consumption should be:9.3/46%=20.22kg；
Step 6, weight gaining material described in step 5 is delivered to into pelletize by the 3rd sealed Shaftless screw conveyor 15-3 Pelletize in machine 9, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 20%, the granulated pellet fertilizer Particle mean size is 6mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener 10 in carry out regrading, by two The oversize of secondary screening is back in batch mixing blender 8, by the siftage of regrading by the 4th sealed shaftless screw conveying Machine 15-4 is delivered in pellet dryer 11, under conditions of temperature is for 100 DEG C is dried process, obtains dry particle fertilizer Material；The moisture content of the dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines 12 in carry out three times screening, by three The siftage of secondary screening is back in batch mixing blender 8, and the oversize of three screenings is sent in finished product packing machine 13 to be carried out into Product are packed, and obtain biological organic fertilizer.
Embodiment 3
With reference to Fig. 1, the present embodiment is circulated profit to urbanite's household kitchen wastes using system as described in Example 1 Method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are by the first sealed shaftless spiral shell Rotation conveyer 15-1 is delivered in rotating drum type drying machine 1, and the high temperature that temperature is 800 DEG C is then passed through into rotating drum type drying machine 1 Air-flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue is 85%；The pulpous state The material temperature of material is 60 DEG C, and moisture content is 70%；
Urbanite's household kitchen wastes described in the present embodiment obtains the detailed process of biogas residue Jing after anaerobic fermentation：It is first First, in kitchen sink 20-2 urbanite's household kitchen wastes input being arranged in the 20-1 of urban residential quarters kitchen, profit Urbanite's household kitchen wastes are crushed with the kitchen waste crushing device 20-3 for being arranged at kitchen sink 20-2 bottoms；So Afterwards, the rubbish from cooking Jing sewer pipe 20-4 after crushing is fallen in anaerobic tank 21, Jing fecal suction trucks 22 are transported to anaerobic fermentation pond The anaerobic fermentation of more than 7 days is carried out in 23, biogas residue is obtained；The granularity of urbanite's household kitchen wastes after crushed meets： D100≤ 2mm, D20≤0.03mm；
Step 2, by pasty material described in step one send into stirring screw conveyer 2 in, by aerobic material hopper 2- 1 adds the filler smashed into stirring screw conveyer 2, and is implanted into consumption for the good of pasty material and filler gross weight 0.5% Oxygen microbial inoculum, makes microbial inoculum, filler mix with pasty material fully by stirring, obtains being inoculated with material, is into subsequent processing rotating cylinder Amount reproduction is carried out in formula Composter 3 ready；Described filler is corn straw, wheat straw or bean flesh；The biogas residue and filler Mass ratio be 7: 3, it is described inoculation material moisture content be 60%；The type of the aerobic microbial inoculum is bacillus cereuss, described good Oxygen microbial inoculum is commercially available, can also be prepared by the following method and obtain：In the rear operation compost tower of the method for the invention, The compost megathermal period of aerobic bacteria amount reproduction and decomposing organic matter, bacterium sample is gathered from tower, using beef-protein medium Culture of isolated goes out 10 bacillus, is cultivated using triangular flask liquid shaking table respectively, then using solid fermentation (culture medium：50% Testa Tritici, 20% wood flour, 29% rice straw powder, 1% Gypsum Fibrosum, water content 50%) amplification culture, product vacuum lyophilization after culture, Fermenting agent is made, with plastic bag sealing, is kept in dark place in 0～4 DEG C of refrigerator, as the standby aerobic of the addition of inoculation stirring later Microbial inoculum；
Step 3, material will be inoculated with described in step 2 and sends in drum-type Composter 3, then to drum-type Composter 3 Temperature is passed through inside for 35 DEG C, oxygen content is 18% air, and inoculation material is inversely contacted with air, in drum-type Composter 3 speed of rotation is 1r/min, and temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtains Microflora for 3 × 109 The aerobic breeding material of individual/g；
Step 4, aerobic breeding material described in step 3 is lifted by bucket elevator 4 after send in compost tower 5, so Temperature is passed through for 35 DEG C in backward compost tower 5, oxygen content is 18% air, and aerobic breeding material is inversely connect with air Touch, decompose compost 7 days using the natural biology heat of aerobic breeders material is aerobic, obtain curing of compost material；
Step 5, curing of compost material described in step 4 is delivered to by the second sealed Shaftless screw conveyor 15-2 Once sieved in screening machine 6, the oversize for once sieving is back in bucket elevator 4, by what is once sieved Siftage Jing ribbon conveyers 7 are delivered in batch mixing blender 8, utilize fertilizer hopper 7-1 to add for increasing the fertilizer of fertilizer efficiency, Obtain weight gaining material；In actual production process, determined according to the actual carbon-nitrogen ratio of fertilizer (C/N), carry out allocating the tret of fertilizer； For example：Be intended to adopt addition carbamide or sulphur ammonium to adjust carbon-nitrogen ratio C/N of fertilizer, the carbon-nitrogen ratio (C/N) of fertilizer is made than wide increasing Plus reach 30:1.Carbon/nitrogen ratio (C/N) computational methods citing：The phosphorus content of wheat straw is 47.03%, and nitrogen content is 0.48%, is passed through Can be calculated：Phosphorus content=1000 in the wheat straw of 1000kg × 0.4703=470.3kg, it is nitrogenous in the wheat straw of 1000kg =1000 × 0.0048=4.8kg of amount.If the carbon-nitrogen ratio of bank is 30 on request:1, then bank should have total nitrogen= 470.3/30=15.68kg, still need supplementary nitrogen quantity=15.68-4.8=10.88kg, and the nitrogen of deficiency is supplemented such as with carbamide, Amount of urea should be:10.88/46%=23.65kg.For another example：The phosphorus content of corn stalk is 42.3%, and nitrogen content is 0.48%, By can be calculated：Phosphorus content=1000 in the corn stalk of 1000kg × 0.423=423kg, in the corn stalk of 1000kg Nitrogen content=1000 × 0.0048=4.8kg.If the carbon-nitrogen ratio of bank is 30 on request：1, then bank should have total nitrogen Amount=423/30=14.1kg, still need supplementary nitrogen quantity=14.1-4.8=9.3kg, and the nitrogen of deficiency, urine are supplemented such as with carbamide Plain consumption should be:9.3/46%=20.22kg；
Step 6, weight gaining material described in step 5 is delivered to into pelletize by the 3rd sealed Shaftless screw conveyor 15-3 Pelletize in machine 9, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 20%, the granulated pellet fertilizer Particle mean size is 5mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener 10 in carry out regrading, by two The oversize of secondary screening is back in batch mixing blender 8, by the siftage of regrading by the 4th sealed shaftless screw conveying Machine 15-4 is delivered in pellet dryer 11, under conditions of temperature is for 105 DEG C is dried process, obtains dry particle fertilizer Material；The moisture content of the dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines 12 in carry out three times screening, by three The siftage of secondary screening is back in batch mixing blender 8, and the oversize of three screenings is sent in finished product packing machine 13 to be carried out into Product are packed, and obtain biological organic fertilizer.
Embodiment 4
With reference to Fig. 1, the present embodiment is circulated profit to urbanite's household kitchen wastes using system as described in Example 1 Method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are by the first sealed shaftless spiral shell Rotation conveyer 15-1 is delivered in rotating drum type drying machine 1, and the high temperature that temperature is 600 DEG C is then passed through into rotating drum type drying machine 1 Air-flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue is 80%；The pulpous state The material temperature of material is 55 DEG C, and moisture content is 65%；
Urbanite's household kitchen wastes described in the present embodiment obtains the detailed process of biogas residue Jing after anaerobic fermentation：It is first First, in kitchen sink 20-2 urbanite's household kitchen wastes input being arranged in the 20-1 of urban residential quarters kitchen, profit Urbanite's household kitchen wastes are crushed with the kitchen waste crushing device 20-3 for being arranged at kitchen sink 20-2 bottoms；So Afterwards, the rubbish from cooking Jing sewer pipe 20-4 after crushing is fallen in anaerobic tank 21, Jing fecal suction trucks 22 are transported to anaerobic fermentation pond The anaerobic fermentation of more than 7 days is carried out in 23, biogas residue is obtained；The granularity of urbanite's household kitchen wastes after crushed meets： D100≤ 2mm, D20≤0.03mm；
Step 2, by pasty material described in step one send into stirring screw conveyer 2 in, by aerobic material hopper 2- 1 adds the filler smashed into stirring screw conveyer 2, and is implanted into consumption for the good of pasty material and filler gross weight 0.5% Oxygen microbial inoculum, makes microbial inoculum, filler mix with pasty material fully by stirring, obtains being inoculated with material, is into subsequent processing rotating cylinder Amount reproduction is carried out in formula Composter 3 ready；Described filler is corn straw, wheat straw or bean flesh；The biogas residue and filler Mass ratio be 7: 3, it is described inoculation material moisture content be 60%；The type of the aerobic microbial inoculum is bacillus cereuss, described good Oxygen microbial inoculum is commercially available, can also be prepared by the following method and obtain：In the rear operation compost tower of the method for the invention, The compost megathermal period of aerobic bacteria amount reproduction and decomposing organic matter, bacterium sample is gathered from tower, using beef-protein medium Culture of isolated goes out 10 bacillus, is cultivated using triangular flask liquid shaking table respectively, then using solid fermentation (culture medium：50% Testa Tritici, 20% wood flour, 29% rice straw powder, 1% Gypsum Fibrosum, water content 50%) amplification culture, product vacuum lyophilization after culture, Fermenting agent is made, with plastic bag sealing, is kept in dark place in 0～4 DEG C of refrigerator, as the standby aerobic of the addition of inoculation stirring later Microbial inoculum；
Step 3, material will be inoculated with described in step 2 and sends in drum-type Composter 3, then to drum-type Composter 3 Temperature is passed through inside for 32 DEG C, oxygen content is 20% air, and inoculation material is inversely contacted with air, in drum-type Composter 3 speed of rotation is 1r/min, and temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtains Microflora for 3 × 109 The aerobic breeding material of individual/g；
Step 4, aerobic breeding material described in step 3 is lifted by bucket elevator 4 after send in compost tower 5, so Temperature is passed through for 32 DEG C in backward compost tower 5, oxygen content is 20% air, and aerobic breeding material is inversely connect with air Touch, decompose compost 5～7 days using the natural biology heat of aerobic breeders material is aerobic, obtain curing of compost material；
Step 5, curing of compost material described in step 4 is delivered to by the second sealed Shaftless screw conveyor 15-2 Once sieved in screening machine 6, the oversize for once sieving is back in bucket elevator 4, by what is once sieved Siftage Jing ribbon conveyers 7 are delivered in batch mixing blender 8, utilize fertilizer hopper 7-1 to add for increasing the fertilizer of fertilizer efficiency, Obtain weight gaining material；In actual production process, determined according to the actual carbon-nitrogen ratio of fertilizer (C/N), carry out allocating the tret of fertilizer； For example：Be intended to adopt addition carbamide or sulphur ammonium to adjust carbon-nitrogen ratio C/N of fertilizer, the carbon-nitrogen ratio (C/N) of fertilizer is made than wide increasing Plus reach 30:1.Carbon/nitrogen ratio (C/N) computational methods citing：The phosphorus content of wheat straw is 47.03%, and nitrogen content is 0.48%, is passed through Can be calculated：Phosphorus content=1000 in the wheat straw of 1000kg × 0.4703=470.3kg, it is nitrogenous in the wheat straw of 1000kg =1000 × 0.0048=4.8kg of amount.If the carbon-nitrogen ratio of bank is 30 on request:1, then bank should have total nitrogen= 470.3/30=15.68kg, still need supplementary nitrogen quantity=15.68-4.8=10.88kg, and the nitrogen of deficiency is supplemented such as with carbamide, Amount of urea should be:10.88/46%=23.65kg.For another example：The phosphorus content of corn stalk is 42.3%, and nitrogen content is 0.48%, By can be calculated：Phosphorus content=1000 in the corn stalk of 1000kg × 0.423=423kg, in the corn stalk of 1000kg Nitrogen content=1000 × 0.0048=4.8kg.If the carbon-nitrogen ratio of bank is 30 on request：1, then bank should have total nitrogen Amount=423/30=14.1kg, still need supplementary nitrogen quantity=14.1-4.8=9.3kg, and the nitrogen of deficiency, urine are supplemented such as with carbamide Plain consumption should be:9.3/46%=20.22kg；
Step 6, weight gaining material described in step 5 is delivered to into pelletize by the 3rd sealed Shaftless screw conveyor 15-3 Pelletize in machine 9, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 15%, the granulated pellet fertilizer Particle mean size is 3mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener 10 in carry out regrading, by two The oversize of secondary screening is back in batch mixing blender 8, by the siftage of regrading by the 4th sealed shaftless screw conveying Machine 15-4 is delivered in pellet dryer 11, under conditions of temperature is for 100 DEG C is dried process, obtains dry particle fertilizer Material；The moisture content of the dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines 12 in carry out three times screening, by three The siftage of secondary screening is back in batch mixing blender 8, and the oversize of three screenings is sent in finished product packing machine 13 to be carried out into Product are packed, and obtain biological organic fertilizer.
Embodiment 5
With reference to Fig. 1, the present embodiment is circulated profit to urbanite's household kitchen wastes using system as described in Example 1 Method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are by the first sealed shaftless spiral shell Rotation conveyer 15-1 is delivered in rotating drum type drying machine 1, and the high temperature that temperature is 400 DEG C is then passed through into rotating drum type drying machine 1 Air-flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue is 80%；The pulpous state The material temperature of material is 55 DEG C, and moisture content is 65%；
Urbanite's household kitchen wastes described in the present embodiment obtains the detailed process of biogas residue Jing after anaerobic fermentation：It is first First, in kitchen sink 20-2 urbanite's household kitchen wastes input being arranged in the 20-1 of urban residential quarters kitchen, profit Urbanite's household kitchen wastes are crushed with the kitchen waste crushing device 20-3 for being arranged at kitchen sink 20-2 bottoms；So Afterwards, the rubbish from cooking Jing sewer pipe 20-4 after crushing is fallen in anaerobic tank 21, Jing fecal suction trucks 22 are transported to anaerobic fermentation pond The anaerobic fermentation of more than 7 days is carried out in 23, biogas residue is obtained；The granularity of urbanite's household kitchen wastes after crushed meets： D100≤ 2mm, D20≤0.03mm；
Step 2, by pasty material described in step one send into stirring screw conveyer 2 in, by aerobic material hopper 2- 1 adds the filler smashed into stirring screw conveyer 2, and is implanted into consumption for the good of pasty material and filler gross weight 0.5% Oxygen microbial inoculum, makes microbial inoculum, filler mix with pasty material fully by stirring, obtains being inoculated with material, is into subsequent processing rotating cylinder Amount reproduction is carried out in formula Composter 3 ready；Described filler is corn straw, wheat straw or bean flesh；The biogas residue and filler Mass ratio be 7: 3, it is described inoculation material moisture content be 60%；The type of the aerobic microbial inoculum is bacillus cereuss, described good Oxygen microbial inoculum is commercially available, can also be prepared by the following method and obtain：In the rear operation compost tower of the method for the invention, The compost megathermal period of aerobic bacteria amount reproduction and decomposing organic matter, bacterium sample is gathered from tower, using beef-protein medium Culture of isolated goes out 10 bacillus, is cultivated using triangular flask liquid shaking table respectively, then using solid fermentation (culture medium：50% Testa Tritici, 20% wood flour, 29% rice straw powder, 1% Gypsum Fibrosum, water content 50%) amplification culture, product vacuum lyophilization after culture, Fermenting agent is made, with plastic bag sealing, is kept in dark place in 0～4 DEG C of refrigerator, as the standby aerobic of the addition of inoculation stirring later Microbial inoculum；
Step 3, material will be inoculated with described in step 2 and sends in drum-type Composter 3, then to drum-type Composter 3 Temperature is passed through inside for 30 DEG C, oxygen content is 20% air, and inoculation material is inversely contacted with air, in drum-type Composter 3 speed of rotation is 1r/min, and temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtains Microflora for 3 × 109 The aerobic breeding material of individual/g；
Step 4, aerobic breeding material described in step 3 is lifted by bucket elevator 4 after send in compost tower 5, so Temperature is passed through for 30 DEG C in backward compost tower 5, oxygen content is 20% air, and aerobic breeding material is inversely connect with air Touch, decompose compost 6 days using the natural biology heat of aerobic breeders material is aerobic, obtain curing of compost material；
Step 5, curing of compost material described in step 4 is delivered to by the second sealed Shaftless screw conveyor 15-2 Once sieved in screening machine 6, the oversize for once sieving is back in bucket elevator 4, by what is once sieved Siftage Jing ribbon conveyers 7 are delivered in batch mixing blender 8, utilize fertilizer hopper 7-1 to add for increasing the fertilizer of fertilizer efficiency, Obtain weight gaining material；In actual production process, determined according to the actual carbon-nitrogen ratio of fertilizer (C/N), carry out allocating the tret of fertilizer； For example：Be intended to adopt addition carbamide or sulphur ammonium to adjust carbon-nitrogen ratio C/N of fertilizer, the carbon-nitrogen ratio (C/N) of fertilizer is made than wide increasing Plus reach 30:1.Carbon/nitrogen ratio (C/N) computational methods citing：The phosphorus content of wheat straw is 47.03%, and nitrogen content is 0.48%, is passed through Can be calculated：Phosphorus content=1000 in the wheat straw of 1000kg × 0.4703=470.3kg, it is nitrogenous in the wheat straw of 1000kg =1000 × 0.0048=4.8kg of amount.If the carbon-nitrogen ratio of bank is 30 on request:1, then bank should have total nitrogen= 470.3/30=15.68kg, still need supplementary nitrogen quantity=15.68-4.8=10.88kg, and the nitrogen of deficiency is supplemented such as with carbamide, Amount of urea should be:10.88/46%=23.65kg.For another example：The phosphorus content of corn stalk is 42.3%, and nitrogen content is 0.48%, By can be calculated：Phosphorus content=1000 in the corn stalk of 1000kg × 0.423=423kg, in the corn stalk of 1000kg Nitrogen content=1000 × 0.0048=4.8kg.If the carbon-nitrogen ratio of bank is 30 on request：1, then bank should have total nitrogen Amount=423/30=14.1kg, still need supplementary nitrogen quantity=14.1-4.8=9.3kg, and the nitrogen of deficiency, urine are supplemented such as with carbamide Plain consumption should be:9.3/46%=20.22kg；
Step 6, weight gaining material described in step 5 is delivered to into pelletize by the 3rd sealed Shaftless screw conveyor 15-3 Pelletize in machine 9, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 15%, the granulated pellet fertilizer Particle mean size is 3mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener 10 in carry out regrading, by two The oversize of secondary screening is back in batch mixing blender 8, by the siftage of regrading by the 4th sealed shaftless screw conveying Machine 15-4 is delivered in pellet dryer 11, under conditions of temperature is for 100 DEG C is dried process, obtains dry particle fertilizer Material；The moisture content of the dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines 12 in carry out three times screening, by three The siftage of secondary screening is back in batch mixing blender 8, and the oversize of three screenings is sent in finished product packing machine 13 to be carried out into Product are packed, and obtain biological organic fertilizer.
The standard that the fertile sexual satisfaction of the biological organic fertilizer prepared using the present embodiment 2 to 5 is as shown in table 1 is required.
The fertilizer standard of 1 biological organic fertilizer of table is required
It follows that the present invention carries out anaerobic fermentation to urbanite's household kitchen wastes, gained biogas residue carries out making fertile life Produce, the fertilizer of conformance with standard requirement can be produced.
The above, is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill Any simple modification, change and equivalence changes that art is substantially made to above example, still fall within technical solution of the present invention Protection domain in.

Claims (17)

1. a kind of urbanite's household kitchen wastes cyclic utilization system, it is characterised in that include what is be sequentially connected by pipeline First sealed Shaftless screw conveyor (15-1), rotating drum type drying machine (1), stirring screw conveyer (2), drum-type Composter (3), bucket elevator (4), compost tower (5), the second sealed Shaftless screw conveyor (15-2), screening machine (6), a belt Conveyer (7), batch mixing blender (8), the 3rd sealed Shaftless screw conveyor (15-3), comminutor (9), rescreener (10), the 4th sealed Shaftless screw conveyor (15-4), pellet dryer (11), No. three screening machines (12) and product packing machine (13)；The discharging opening of screening machine (6), rescreener (10) and No. three screening machines (12) is exported including oversize Export with siftage；The siftage outlet of screening machine (6) is connected with ribbon conveyer (7) by pipeline, and described two The siftage outlet of secondary screening machine (10) is connected with the 4th sealed Shaftless screw conveyor (15-4) by pipeline, described three times The oversize outlet of screening machine (12) is connected with product packing machine (13) by pipeline, the oversize of a screening machine (6) Outlet is connected with bucket elevator (4) by pipeline, oversize outlet and No. three screening machines of the rescreener (10) (12) siftage outlet is connected with batch mixing blender (8) by pipeline, the stirring screw conveyer (2) and aerobic material Hopper (2-1) connects, and the ribbon conveyer (7) is connected with fertilizer hopper (7-1).
2. urbanite's household kitchen wastes cyclic utilization system according to claim 1, it is characterised in that the rotating cylinder Formula dehydrator (1) includes frame (1-12), and thermal dehydration portion (1-1) and constant temperature dehydration are rotatablely equipped with the frame (1-12) Portion (1-11), the constant temperature de-watering section (1-11) are provided with the lower section of thermal dehydration portion (1-1), the frame (1-12) For driving the first rotating drive mechanism (1-6) that thermal dehydration portion (1-1) rotates and for driving the second constant temperature de-watering section (1- 11) the second rotating drive mechanism (1-7) for rotating, one end of the thermal dehydration portion (1-1) are provided with top cylinder feeder (1- 2), the other end of the thermal dehydration portion (1-1) is provided with top cylinder guide portion (1-3), and the one of the constant temperature de-watering section (1-11) End is provided with lower cylinder feeder (1-4), and the lower cylinder feeder (1-4) is positioned at the lower section in top cylinder guide portion (1-3), the lower cylinder The charging aperture of feeder (1-4) is connected with the discharging opening in top cylinder guide portion (1-3), the other end of the constant temperature de-watering section (1-11) Discharging portion (1-5) is installed, the charging aperture of the discharging portion (1-5) is connected with the discharging opening of constant temperature de-watering section (1-11)；It is described It is connected with top cylinder guide portion (1-3) for the thermal source portion (1-8) to thermal dehydration portion (1-1) thermal dehydration, the top cylinder enters It is connected with material portion (1-2) for reclaiming thermal dehydration portion (1-1) waste heat and the waste heat of recovery being passed through constant temperature de-watering section (1- 11) UTILIZATION OF VESIDUAL HEAT IN portion (1-9), is connected with for collecting in constant temperature de-watering section (1-11) on the lower cylinder feeder (1-4) The tail gas of collection is passed through the exhaust collection portion in thermal source portion (1-8) simultaneously for tail gas.
3. urbanite's household kitchen wastes cyclic utilization system according to claim 2, it is characterised in that the heating De-watering section (1-1) includes the quick guide section of top cylinder, the preheating evaporator section and micro carbonization section for setting gradually from right to left, it is described on The quick guide section of cylinder include the first cylinder (1-1-11) and be arranged on the first cylinder (1-1-11) inwall it is multiple first quick Stock guide (1-1-12), the outer end of first cylinder (1-1-11) are provided with first and only expect ring (1-1-13)；The preheating is steamed Sending out section includes the second cylinder (1-1-21), is provided with multiple first copy plate (1- on the inwall of second cylinder (1-1-21) 1-22) with multiple first flights (1-1-23), first copy plate (1-1-22) and the first flight (1-1-23) are spaced Lay；The micro carbonization section include the 3rd cylinder (1-1-31) and be arranged on the 3rd cylinder (1-1-31) inwall multiple the Two flights (1-1-32), first cylinder (1-1-11), the second cylinder (1-1-21) and the 3rd cylinder (1-1-31) are one Body structure and three is collectively forming upper shell (1-1-1).
4. urbanite's household kitchen wastes cyclic utilization system according to claim 3, it is characterised in that the constant temperature De-watering section (1-11) includes the quick guide section of lower cylinder, constant temperature dewatering period and the cooling discharging section for setting gradually from left to right, described The quick guide section of lower cylinder includes the 4th cylinder (1-11-11) and be arranged on the 4th cylinder (1-11-11) inwall multiple second Quick stock guide (1-11-12), the outer end of the 4th cylinder (1-11-11) are provided with second and only expect ring (1-11-13)；It is described Constant temperature dewatering period includes the 5th cylinder (1-11-21), is provided with multiple second and copies on the inwall of the 5th cylinder (1-11-21) Flitch (1-11-22) and multiple 3rd flights (1-11-23), second copy plate (1-11-22) and multiple 3rd spirals Lay at piece (1-11-23) interval；The cooling discharging section includes the 6th cylinder (1-11-31) and installed in the 6th cylinder (1-11- 31) multiple 4th flights (1-11-32) on inwall, the 4th cylinder (1-11-11), the 5th cylinder (1-11-21) and 6th cylinder (1-11-31) is structure as a whole and three is collectively forming lower shell (1-11-1).
5. urbanite's household kitchen wastes cyclic utilization system according to claim 4, it is characterised in that described first Rotating drive mechanism (1-6) includes first reducing motors (1-6-1), the first minor sprocket (1-6-2), the first big sprocket wheel (1-6-3) With the first chain (1-6-4), first minor sprocket (1-6-2) is fixedly mounted on the output shaft of first reducing motors (1-6-1) On, first big sprocket wheel (1-6-3) is fixedly mounted on upper shell (1-1-1), and the upper shell (1-1-1) tightens and is cased with One rolling ring (1-6-5), first minor sprocket (1-6-2) and the first big sprocket wheel (1-6-3) are connected by the first chain (1-6-4) The first Chain conveyer is formed, the first reducing motors (1-6-1) are installed on the frame (1-12) in frame (1-12) There is the first support roller (1-6-6) for supporting upper shell (1-1-1) to rotate.
6. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 5, it is characterised in that described second Rotating drive mechanism (1-7) includes second reducing motors (1-7-1), the second minor sprocket (1-7-2), the second big sprocket wheel (1-7-3) With the second chain (1-7-4), second minor sprocket (1-7-2) is fixedly mounted on the output shaft of second reducing motors (1-7-1) On, second big sprocket wheel (1-7-3) is fixedly mounted on lower shell (1-11-1), and the lower shell (1-11-1) tightens and is cased with Second rolling ring (1-7-5), second minor sprocket (1-7-2) and the second big sprocket wheel (1-7-3) are connected by the second chain (1-7-4) Connect to form the second Chain conveyer, the second reducing motors (1-7-1) are pacified on the frame (1-12) in frame (1-12) Equipped with the second support roller (1-7-6) for supporting lower shell (1-11-1) to rotate.
7. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 4, it is characterised in that the top cylinder Feeder (1-2) includes the first seal closure (1-2-1) and the first Shaftless screw conveyor (1-2-2), first shaftless screw Conveyer (1-2-2) is sealingly mounted on the first seal closure (1-2-1), and the first Shaftless screw conveyor (1-2-2's) enters Material mouth is located at the first seal closure (1-2-1) outward, and the discharging opening of first Shaftless screw conveyor (1-2-2) is positioned at the first sealing In cover (1-2-1), top cylinder tail gas interface tube (1-2-3) and the first maintenance door (1- on first seal closure (1-2-1), are provided with 2-4), first seal closure (1-2-1) is tightly connected with the outer end of the first cylinder (1-1-11).
8. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 7, it is characterised in that the top cylinder Guide portion (1-3) includes the second seal closure (1-3-1), and the bottom of second seal closure (1-3-1) is provided with first and leads downwards Material chute (1-3-3), the outer end of second seal closure (1-3-1) is provided with high temperature air air intake interface tube (1-3-2), described The sidepiece of the second seal closure (1-3-1) is provided with the second maintenance door (1-3-4), the inner of second seal closure (1-3-1) with The outer end of the 3rd cylinder (1-1-31) is tightly connected.
9. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 8, it is characterised in that the lower cylinder Feeder (1-4) includes the 3rd seal closure (1-4-1) and the second Shaftless screw conveyor (1-4-2), second shaftless screw Conveyer (1-4-2) is sealingly mounted on the 3rd seal closure (1-4-1), and the second Shaftless screw conveyor (1-4-2's) enters Material mouth is located in the 3rd seal closure (1-4-1), and the discharging opening of second Shaftless screw conveyor (1-4-2) is positioned at the 3rd sealing In cover (1-4-1), lower cylinder tail gas interface tube (1-4-3) and the 3rd maintenance door (1- on the 3rd seal closure (1-4-1), are provided with 4-4), the 3rd seal closure (1-4-1) is tightly connected with the outer end of the 4th cylinder (1-11-11), the 3rd seal closure (1- Charging aperture 4-1) is connected with the discharging opening of the first downward guide chute (1-3-3).
10. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 9, it is characterised in that it is described go out Material portion (1-5) includes the 4th seal closure (1-5-1), the second downward guide chute (1-5-3) and the 3rd Shaftless screw conveyor (1- 5-4), the described second downward guide chute (1-5-3) is arranged on the bottom of the 4th seal closure (1-5-1), the 3rd shaftless spiral shell Rotation conveyer (1-5-4) is obliquely installed, and charging aperture and the second downward guide of the 3rd Shaftless screw conveyor (1-5-4) are slipped The discharging opening of groove (1-5-3) connects, and the outer end of the 4th seal closure (1-5-1) is provided with heat exchange air air intake interface tube (1-5-2), the inner of the 4th seal closure (1-5-1) is tightly connected with the outer end of the 6th cylinder (1-11-31).
11. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 10, it is characterised in that the heat Source portion (1-8) includes air-heating furnace chamber (1-8-3) and fire prevention brick wall (1-8-4), and fire prevention brick wall (1-8-4) is arranged on sky In gas heating furnace chamber (1-8-3), one end of the air-heating furnace chamber (1-8-3) is provided with biogas combustion mouth (1-8-1), described The other end in air-heating furnace chamber (1-8-3) is provided with high temperature air discharge pipe (1-8-5), the high temperature air discharge pipe (1- 8-5) connect with high temperature air air intake interface tube (1-3-2).
12. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 11, it is characterised in that described remaining Heat utilization portion (1-9) includes gas-gas heat exchange of heat pipe (1-9-2), the first high temperature draught fan (1-9-7) and the second high temperature draught fan (1-9-5), the hot air intake of the gas-gas heat exchange of heat pipe (1-9-2) is by top cylinder tail gas adapter (1-9-4) and top cylinder tail gas Interface tube (1-2-3) connects, and import and the gas-gas heat exchange of heat pipe (1-9-2) of first high temperature draught fan (1-9-7) exchange heat Offgas outlet connection afterwards, the outlet of first high temperature draught fan (1-9-7) are connected with the top cylinder tail gas row for being passed through deodorization tank Outlet pipe (1-9-6)；The air intlet of the gas-gas heat exchange of heat pipe (1-9-2) is connected with fresh air blast pipe (1-9-1), Air outlet slit after gas-gas heat exchange of heat pipe (1-9-2) heat exchange is high with second by heat exchange air discharge pipe (1-9-3) The import connection of warm air-introduced machine (1-9-5), the outlet of second high temperature draught fan (1-9-5) are connect with heat exchange air blast pipe Mouth (1-5-2) connection.
13. according to the urbanite's household kitchen wastes cyclic utilization system described in claim 12, it is characterised in that the tail Gas collection portion includes mixed bellows (1-10-1) and third high temperature air-introduced machine (1-10-2), the third high temperature air-introduced machine (1-10-2) Import be connected with the air outlet of mixed bellows (1-10-1), air inlet and the lower cylinder tail gas interface tube of the mixed bellows (1-10-1) (1-4-3) connect, the outlet of the third high temperature air-introduced machine (1-10-2) is fired with biogas by high temperature air mixing wind tube (1-8-2) Burner (1-8-1) is connected.
14. urbanite's household kitchen wastes cyclic utilization systems according to claim 1 and 2, it is characterised in that also wrap Rubbish from cooking fermentation mechanism is included, the rubbish from cooking fermentation mechanism includes the kitchen being arranged in urban residential quarters kitchen (20-1) Aqueous humor pond (20-2), the kitchen waste crushing device (20-3) for being arranged at kitchen sink (20-2) bottom, and kitchen waste crushing device (20-3) sewer pipe (20-4) for connecting, the change being connected positioned at urban residential quarters (20) underground and with sewer pipe (20-4) Manure pit (21) and the fecal suction truck (22) being transported to the deposit in anaerobic tank (21) in anaerobic fermentation pond (23), the anaerobism are sent out The top in ferment pond (23) is provided with biogas collection gas bag (23-1), bottom and the biogas residue screw elevator of the anaerobic fermentation pond (23) (23-2) lower end connection, the upper end of the biogas residue screw elevator (23-2) are defeated with the first sealed shaftless screw by pipeline Machine (15-1) is sent to connect.
15. urbanite's household kitchen wastes cyclic utilization systems according to claim 1 and 2, it is characterised in that described The screen size of screening machine (6) is 2mm, and the screen size of the rescreener (10) is 5mm, No. three screening machines (12) screen size is 3mm.
16. a kind of be circulated the side that utilize to urbanite's household kitchen wastes using system as claimed in claim 1 or 2 Method, it is characterised in that the method is comprised the following steps：
Step one, the biogas residue that urbanite's household kitchen wastes are obtained Jing after anaerobic fermentation are defeated by the first sealed shaftless screw Send machine (15-1) to be delivered in rotating drum type drying machine (1), then temperature is passed through into rotating drum type drying machine (1) for 400 DEG C～800 DEG C high temperature gas flow, and high temperature gas flow is inversely contacted with biogas residue, obtain pasty material；The moisture content of the biogas residue be 80%～ 85%；The material temperature of the pasty material is 55 DEG C～60 DEG C, and moisture content is 65%～70%；
Step 2, pasty material described in step one is sent in stirring screw conveyer (2), using adding containing aerobic bacteria The method of filler carries out aerobic bacteria inoculation, obtains being inoculated with material；Described filler is any one in corn straw, wheat straw and bean flesh Plant or two or more, the aerobic bacteria is bacillus cereuss, and the biogas residue is 7: 3 with the mass ratio of the filler containing aerobic bacteria, institute The moisture content for stating inoculation material is 60%；
Step 3, material will be inoculated with described in step 2 and sends in drum-type Composter (3), then to drum-type Composter (3) The air that temperature is 30 DEG C～35 DEG C, oxygen content is 18%～21% is inside passed through, and inoculation material is inversely contacted with air, The speed of rotation of drum-type Composter (3) is 1r/min, and temperature is aerobic breeding 48h under conditions of 30 DEG C～40 DEG C, obtains bacterium Group's quantity is 3 × 109The aerobic breeding material of individual/g；
Step 4, by aerobic breeding material described in step 3 by sending in compost tower (5), so after bucket elevator (4) lifting Temperature is passed through for 30 DEG C～35 DEG C in backward compost tower (5), oxygen content is 18%～21% air, and makes aerobic breeding material Inversely contact with air, decompose compost 5～7 days using the natural biology heat of aerobic breeders material is aerobic, obtain curing of compost thing Material；
Step 5, curing of compost material described in step 4 is delivered to into one by the second sealed Shaftless screw conveyor (15-2) Once sieved in secondary screening machine (6), the oversize for once sieving is back in bucket elevator (4), once will be sieved Siftage Jing ribbon conveyers (7) be delivered in batch mixing blender (8), using add fertilizer method carry out weight gaining process, Obtain weight gaining material；The fertilizer is any one in nitrogenous fertilizer, phosphate fertilizer and potash fertilizer or two or more；
Step 6, weight gaining material described in step 5 is delivered to into comminutor by the 3rd sealed Shaftless screw conveyor (15-3) (9) pelletize in, obtains granulated pellet fertilizer；The moisture content of the granulated pellet fertilizer is 15%～20%, the granulated pellet The particle mean size of fertilizer is 3mm～6mm；
Step 7, will granulated pellet fertilizer described in step 6 send into rescreener (10) in carry out regrading, will be secondary The oversize of screening is back in batch mixing blender (8), by the siftage of regrading by the 4th sealed shaftless screw conveying Machine (15-4) is delivered in pellet dryer (11), is dried process, obtains under conditions of temperature is for 100 DEG C～105 DEG C Dry particle fertilizer；The moisture content of the dry particle fertilizer is not more than 15%；
Step 8, will dry particle fertilizer described in step 7 send into No. three screening machines (12) in carry out three times screening, by three times The siftage of screening is back in batch mixing blender (8), and the oversize of three screenings is sent in finished product packing machine (13) to be carried out Finished product packing, obtains biological organic fertilizer.
17. methods according to claim 16, it is characterised in that the Jing of urbanite's household kitchen wastes described in step one The detailed process that biogas residue is obtained after anaerobic fermentation is：First, urbanite's household kitchen wastes input is arranged at into urbanite In kitchen sink (20-2) in kitchen (20-1), using the kitchen waste crushing device for being arranged at kitchen sink (20-2) bottom (20-3) urbanite's household kitchen wastes are crushed；Then, by the rubbish from cooking Jing sewer pipe (20-4) after crushing Fall in anaerobic tank (21), Jing fecal suction trucks (22) carry out the anaerobic fermentation of more than 7 days in being transported to anaerobic fermentation pond (23), obtain Biogas residue；The granularity of urbanite's household kitchen wastes after crushed meets：D100≤ 2mm, D20≤0.03mm。
CN201610929586.9A 2016-10-31 2016-10-31 City dweller's household kitchen wastes cyclic utilization system and method Active CN106565293B (en)

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CN111393203B (en) * 2020-04-21 2024-01-09 哈尔滨工业大学 Static composting heat recycling system for agricultural and forestry organic solid waste

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