CN101684422B - Environmentally-friendly sludge solid fuel and preparation method thereof - Google Patents
Environmentally-friendly sludge solid fuel and preparation method thereof Download PDFInfo
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- CN101684422B CN101684422B CN 200910040486 CN200910040486A CN101684422B CN 101684422 B CN101684422 B CN 101684422B CN 200910040486 CN200910040486 CN 200910040486 CN 200910040486 A CN200910040486 A CN 200910040486A CN 101684422 B CN101684422 B CN 101684422B
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- 239000010802 sludge Substances 0.000 title claims abstract description 62
- 239000004449 solid propellant Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002028 Biomass Substances 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 12
- 239000003463 adsorbent Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 18
- 239000010865 sewage Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 235000002639 sodium chloride Nutrition 0.000 claims 8
- 238000007670 refining Methods 0.000 claims 2
- 230000018044 dehydration Effects 0.000 abstract description 13
- 238000006297 dehydration reaction Methods 0.000 abstract description 13
- 238000004939 coking Methods 0.000 abstract description 6
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 238000004332 deodorization Methods 0.000 abstract description 3
- 230000001877 deodorizing effect Effects 0.000 abstract description 2
- 239000012265 solid product Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 24
- 239000000047 product Substances 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 208000005156 Dehydration Diseases 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 7
- 244000052616 bacterial pathogen Species 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
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- 210000004681 ovum Anatomy 0.000 description 3
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- 239000002699 waste material Substances 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000010564 aerobic fermentation Methods 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 241000589651 Zoogloea Species 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
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- 150000002013 dioxins Chemical class 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
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- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 238000002203 pretreatment Methods 0.000 description 1
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- 235000014347 soups Nutrition 0.000 description 1
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- 230000009967 tasteless effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- 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
- Y02E50/10—Biofuels, e.g. bio-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
- 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
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- Treatment Of Sludge (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a preparation method for an environmentally-friendly sludge solid fuel, which belongs to the technical field of sludge treatment. The environmentally-friendly sludge solid fuel of the invention comprises the following components: 45 to 70 percent of sludge, 0.01 to 3.5 percent of potassium permanganate, 0.1 to 8 percent of industrial salt, 20 to 50 percent of biomass adsorbent, 0.1 to 3 percent of ash removal anti-coking agent, 1 to 10 percent of hogwash oil and the like. The preparation method comprises the following steps: sterilizing and deodorizing the sludge, separating and releasing moisture inside the sludge, performing water absorption and deodorization on the sludge, performing spiral mechanical pressure dehydration and double-circulation intermediate temperature (between 100 and 180 DEG C) drying, adding the hogwash oil and the ash removal anti-coking agent into the sludge, stirring the mixture evenly and then preparing a needed solid product through a molding machine, and cooling and packing the solid product.
Description
Technical field
What environmentally-friendly sludge solid fuel of the present invention and preparation method thereof related to is to utilize mud to manufacture the production technique of solid environment-friendly fuel, belongs to sludge disposal treatment technology, method field.
Background technology
Continuous increase along with domestic sewage work, all can produce the huge mud of quantity after disposing of sewage every day, the composition of these mud is very complicated, the zoogloea that is formed by multiple microorganism reaches the aggregate of forming with its adsorbed organic matter and inorganics, except containing a large amount of moisture content (can up to 99.3%), also contain the organism, heavy metal and the salt that are difficult to degrade, and pathogenic micro-organism and parasitic ovum etc., organic content height in the mud, very easily corrupt, and the generation stench, a large amount of undressed mud are stacked and discharging has caused new pollution to environment.Owing to contain a large amount of germs, parasitic ovum and virus in the mud, very easily cause the propagation of transmissible disease.How the enormous amount that sewage work is produced every day, composition is complicated and with serious pollution mud carries out harmless treatment and recycling is the problem that China and even countries in the world government deeply concern about.Show that according to related data by 2010, sewage treatment facility all will be built in domestic all cities, treatment rate of domestic sewage is not less than 70%, the National urban sewage treatment capacity will reach 100,000,000 ton per days, produce 5 tons of mud by 1000 tons of sewage of every processing and calculate, and the mud of whole nation generation every day reaches 500,000 tons! Just there are 18,250 ten thousand tons the whole year! To effective improvement of the huge mud of these quantity, become the No.1 difficult problem that environmental pollution is administered in China's modernization!
Take a broad view of all over the world government or enterprise and at present the treatment technology of mud is mainly contained modes such as landfill, compost, dehydration and drying, burning, these processing modes all ubiquity big and small different defective.Doing the landfill disposal after the sludge dewatering is a kind of both economical processing mode, but because the slaking apparatus complex process that this processing mode needs, one-time investment is big, the operation difficulty is big, practical operating experiences shows and often is difficult to get a desired effect, moreover the dewatered sludge water ratio is much higher than desired 30% water ratio of common life garbage sanitary filling field, therefore need treatedly more just can be sent to the household refuse landfill sites landfill, this kind method need arrange special-purpose sludge landfill, and to carry out special landfill according to factors such as the water ratio of mud and mechanical characteristics, be difficult to actually operating.This method shortcoming be take up an area of big, addressing is limited and have secondary pollution etc., particularly secondary pollution is difficult to eliminate, so various places eliminate or do not re-use this method gradually now; After the sludge dewatering compost agricultural be present more domestic sewage works problem of researching and developing, mud also has the effect as " soil improvement agent " except having manurial value.Although mud contains abundant nutrient, also contain a large amount of pathogenic bacterias, parasite (ovum), heavy metal such as copper, zinc, chromium, mercury and some carcinogenic substances etc., these materials all might cause great harm to environment and the mankind and animal health.Removing these objectionable impuritiess often needs very high cost, detection inspection machine and the technology of having relatively high expectations simultaneously.General problem is that detection means does not catch up with requirement at present, carcinogenic substance and heavy metal compound can not get removing completely, processing cost can't balance each other with economic benefit, the chemical fertilizer widespread usage does not extensively cause the selling market to be difficult to exploitation etc., and all this kind makes that this kind disposal options also is difficult to generally be promoted socially.The treatment process that with the burning is core is treatment process the most completely, and mainly can be divided into two big classes: a class is directly to send incinerator to burn dewatered sludge, and another kind of is to burn after the mummification of dewatered sludge elder generation again.But all there is following defective in this two classes technology: 1, investment is huge, and floor space is big.2, this mode handle comprehensive cost can be per ton up to 700 yuan more than, and just merely mud is done minimizing and is handled, and do not utilize mud to produce new economic benefit, singly do not have economic benefit to say, also to pay high processing cost.3, the production scene foul smell is difficult to eliminate.Though occur an encapsulation process technology now, allow mud in sealed can, handle, can prevent to a certain extent that the foul smell in the sludge handling process from leaking, but from the beginning the smelly source of mud is not handled, cause still constantly generation of stink in the treating processes, the treatment plant foul smell fills the air.4, handle first half term mud bacterium, pathogenic bacteria are not made inactivation treatment, very easily the operator is caused infection.5, mud contains moisture generally more than 90%, and is very easily mobile, can not directly use the conventional mechanical extrusion dehydration.6, the moisture in the mud mainly exists in conjunction with the form of water, surface adsorption water, internal water with interstitial water, capillary, now the dehydration technique method that generally adopts mostly can only slough interstitial water and surface adsorption water, to capillary in conjunction with water and internal water remove not enough.7, the theoretical calorific value of product reaches requirement, but the calorific value of product is not enough after producing in batches, and is also stable inadequately, unfavorable to the application of final product, so do not form the application situation of scale so far on the market.Pillow power is not enough when 8, burning, that is burning endurance is not enough, and very easily coking, influences the burn application of sludge product in boiler.Very easily smelly when 9, final product is stacked, or peculiar smell is arranged, with regard to using enterprise, influence enterprise's Air quality easily, secondary pollution is arranged.10, the burning actual temperature does not reach more than 800 ℃, easily produces pollutents such as Dioxins.11, the sewage that produces in the production process is not carried out suitable processing or deal with improperly, directly discharging causes secondary pollution to surrounding environment.12, many sludge treatment technology or method all need mud is carried out aerobic or anaerobically fermenting.Dividing folding according to the composition to various places mud, all contain a large amount of organism in the mud, itself is exactly a kind of excellent fuel, does not need any type of fermentation.Some mud is after fermentation, owing to consumed a large amount of organism during fermentation, reduced the calorific value of mud itself on the contrary, be unfavorable for the mud raw material production that acts as a fuel, very high and one of inaccessible reason of actual calorific value of theoretical calorific value when this also is some former raw sludges chemical examinations, and the sludge fermentation process is the smelly main source of mud, can produce a large amount of foul smell, and production environment is caused atmospheric pollution.
Summary of the invention
The present invention is exactly at above-mentioned sludge treatment technology existing practical problems and a whole set of the up-to-date sewage sludge harmlessness that proposes, the production technology of resource utilization in process of production, present technique does not need mud is carried out any type of fermentation and pre-treatment, sludge treatment is direct, quick, and selects for use the inventive method to carry out the conventional mechanical extrusion dehydration to mud.Main contribution of the present invention is low input, low cost, and production process asepticize, production scene do not have stink, facility investment is low, the efficient height, easy to operate, non-secondary pollutions etc. all manufacture mud simultaneously the sludge solid fuel of environment-friendly type, are suitable for doing industrial fuel.
Environmentally-friendly sludge solid fuel of the present invention is by mud, potassium permanganate, Industrial Salt (main sodium chloride-containing, a small amount of magnesium chloride and Repone K etc. are arranged), biomass adsorbent (with wooden chaff, bamboo chaff, other phyteral chip or the combination of powder proportioning), the burnt agent of deashingization, swill wet goods form, concrete proportioning is as follows: mud 45%-70%, potassium permanganate 0.01%-3.5%, Industrial Salt 0.1%-8%, biomass adsorbent 20%-50%, the burnt agent 0.1%-3% of deashingization, hogwash fat 1%-10%.
The preparation method of environmentally-friendly sludge solid fuel of the present invention is as follows:
1, the mud that will meet aforementioned proportion is inserted translucent rotating sealing and is stirred in companion's machine, adds 0.01%-3.5% potassium permanganate, stirs the companion and adds the 0.1%-8% Industrial Salt after 5 minutes, continues to stir the companion 5-20 minute;
2, pass through sealing-duct, mud after step 1 processing all is transported to another translucent rotating sealing that 20%-50% biomass adsorbent has been housed to be stirred in companion's jar, stir the companion after 5-15 minute, mixing sludge evenly all is transported to the transfer jar by sealing-duct, and carry out the water-soluble after-odour absorption of the biomass first time, discharge qualified air;
3, will in the screw machine water mangle, carry out sludge dewatering by pipe-line transportation through the mixing sludge after step 2 processing, obtain the mixing sludge of solid content 50-65%; Simultaneously with the sewage that produces by pipe special be discharged into treatment tank or nearby Sewage Plant handle qualified discharging;
4, with above-mentioned mixing sludge by pipe-line transportation in another screw machine water mangle, carry out sludge dewatering again, obtain the powdery mixing sludge of solid content 70-80%; The sewage that this produces in stage also by pipe special be discharged into treatment tank or nearby Sewage Plant handle qualified discharging;
5, will arrive bicirculating 100-180 ℃ drying system by pipe-line transportation through the powdery mixing sludge after step 4 processing, obtain the powdery mixing sludge of solid content 90%-98%, the water vapour that this stage produces imports Recycling in the circulation drying system through dust removal and filtration and the back of the water-soluble after-odour absorption of biomass for the second time, and discharges qualified air;
6, above-mentioned powdery mixing sludge is arrived blend tank by pipe-line transportation, spray into the 1%-10% hogwash fat, the burnt agent of 0.1%-3% deashingization was stirred the companion 3-7 minute;
7, with step 6 mixed raw materials input pressure shaper, pressurization manufactures filled circles column or hollow cylindrical product;
8, moulding product input cooling duct through being cooled to 22-35 ℃, obtains finished product, and the packing back is for sale.
Above-mentioned process explanation is as follows:
1, potassium permanganate is strong sterilant, and sterilizing power is extremely strong, but and deodorizing.Adding potassium permanganate, mainly is directly to kill contained bacterium, pathogenic bacteria etc. in the mud, removes the smelly source of mud, lowered the smell of mud greatly, allow mud obtain deodorization and sterilization in the very first time and handle, eliminate stink, stopped bacterium, pathogenic bacteria to workman's infection.In addition, katalysis is also played in the burning of potassium permanganate in finished product that remains in the mud, makes the combustion heat value of mud higher, burns more fully.Add Industrial Salt, utilize the hypertonicity principle, except playing the assisting sterilisation effect, mainly be to decompose the interior capillary of mud in conjunction with water, internal water, make it flow out kapillary and extracellular, become the interstitial water and the surface adsorption water that are easy to remove, be follow-up low-cost dehydration procedure service.And remain in Industrial Salt in the mud (main contain sodium-chlor, a spot of magnesium chloride, Repone K etc. are arranged), also play combustion-supporting and effect desulfurization.A kind of material, multiple effect.
2, biological adsorption agent mainly is made up of wooden chaff, bamboo chaff, other phyteral chip or the powder etc. of good water absorption and very easily burning, join and stir the companion in the mud, effect is interstitial water, surface adsorption water and the foul smell that absorbs in the mud, and mix with mud, increase the mud damping, cause mud not flow, make mud be suitable for the conventional mechanical extrusion dehydration.Behind dehydration and drying, biomass adsorbent is converted into ignition dope, auxiliary dewatered sludge burning.Under the acting in conjunction of the potassium permanganate that adds before, Industrial Salt, constantly the capillary in the mud is transformed into interstitial water and surface adsorption water in conjunction with water, internal water, these water and smell are absorbed by biological adsorption agent again, improve the dehydration rate of mud greatly.The effect of transfer jar has two: one, and the residue smell of mud is disposed through the water-soluble odor removal of biology, discharges cleaned air.The 2nd, transfer is stored, the supply subsequent disposal.
3, screw machine water mangle is the novel mechanical dewatering unit, becomes miter angle to put.Because mud is through after the above-mentioned processing, as easy as rolling off a logly in this technology, slough moisture.
4, behind second dehydration, obtain the higher powdery mixing sludge of solid content.Because the mechanical dehydration cost is significantly less than the cost by the heat energy drying and dewatering, so this technology can reduce the oven dry cost of mud in the follow-up stoving process greatly.
5, two circulation drying systems, the bottom utilizes heat-conducting oil pipes circulation heating, drying, and top utilizes hot air circulation to blow baking, heat supply temperature is all controlled at 100 ℃ to 180 ℃, and drying time is no less than 5 minutes, carries out re-sterilise in the time of oven dry, thoroughly kill bacteria, pathogenic bacteria.After this technology, obtain the powdery mixing sludge of solid content 90%-98%.
6, hogwash fat is food, soup and hole canal wet goods rubbish discarded in the catering industry, through the separating of oil grease that obtains again of water, is a kind of product that obtains behind the pollutent of administering.Hogwash fat burning-point height, calorific value is big, and anti-combustion.Adding hogwash fat one could play the effect of adhesion agent, and two can improve the calorific value of mud greatly, and the calorific value of environmentally-friendly sludge solid fuel can stably be reached more than 3800 kilocalories! Three can prolong the burning pillow power of product, and four can make the easier ignition of product, and temperature of combustion can reach more than 800 ℃, and it is more thorough to burn.Add hogwash fat, also reach the target of the treatment of wastes with processes of wastes against one another simultaneously! Add the burnt agent of deashingization, decompose the composition that is easy to coking in the mud, make it loose and do not lump, cooperate mentioned component, prevent product coking caking on combustion processes better, improve heat energy release rate and the firing out rate of product.
7, finished product can manufacture filled circles column or hollow cylindrical (being web-like), or manufactures solid and hollow two kinds of shapes simultaneously and mix.Manufacture web-like and can increase product contact surface to air when burning, increase oxygen supply, make product burn more fully, also prevent coking effectively.
8, product cooling back packing, mouldy, smelly in the time of can preventing that product from depositing, spontaneous combustion etc.
The formula material that the present invention is selected, all are Industrial products, waste, swill wet goods low value and that very easily collect or buy, and can be according to the different sludge components of different areas, suitably adjust formula rate, to reach the best proportioning of product, and required equipment, technology are also simple, so the comprehensive treating process cost is extremely low.
On above-mentioned technology, can obviously find out, the present invention carries out sterilization and deodorization to mud from the beginning and handles, abandoned traditional mud through operations such as anaerobism or aerobic fermentations, traditional sludge aerobic fermentation floor space is big, cycle is long, easily producing shortcomings such as foul smell and treatment capacity are low all improves, and take new prescription, novel process, so, environmentally-friendly sludge solid fuel of the present invention and preparation method thereof floor space is little, less investment, cycle is short, treating processes odorless, tasteless non-secondary pollution, it is big etc. to handle quick output, the realization treating sludge is innoxious, minimizing, energy, practicability is that a kind of practicable mud is cheaply thoroughly administered technology.
Prescription and preparation method according to the present invention, the finished product that final production goes out is environmentally-friendly sludge solid fuel, its leading indicator is: calorific value 〉=3600 kilocalories, moisture≤12%.Unharmful substance discharging during burning, comprehensive discharge is better than discharging standards, is a kind of real environment-friendly type fuel.Environmentally-friendly sludge solid fuel can use by oneself or sell, and replaces coal, charcoal, oil, as boiler, Industrial Stoves and burner fuel, is widely used in various boilers, Industrial Stoves and burner, and save energy produces huge economy and society benefit.
The Figure of description label declaration:
1 adds mud, potassium permanganate, and 2 add salt, and 3 add biomass adsorbent, 4 transfer jars, 5 screw machine pressure dehydrations, the dehydration of 6 secondary screw machine pressure, 7 pairs of circulation drying systems, 8 add hogwash fat, the burnt agent of deashingization, 9 molding machines, 10 cooling systems, 11 finished product packings, the water-soluble odor removal of 12 biomass, 13 sewage disposals discharging.
Claims (5)
1. environmentally-friendly sludge solid fuel, it is characterized in that: described environmentally-friendly sludge solid fuel comprises following component: mud, potassium permanganate, Industrial Salt, biomass adsorbent, the burnt agent of deashingization, hogwash fat, concrete proportioning is as follows: mud 45%-70%, potassium permanganate 0.01%-3.5%, Industrial Salt 0.1%-8%, biomass adsorbent 20%-50%, the burnt agent 0.1%-3% of deashingization, hogwash fat 1%-10%.
2. environmentally-friendly sludge solid fuel as claimed in claim 1, it is characterized in that: described Industrial Salt is granular or powdery, comprises sea salt, lake salt, well salt and rock salt.
3. environmentally-friendly sludge solid fuel as claimed in claim 1 is characterized in that: described biomass adsorbent, mainly form with wooden chaff, bamboo chaff and other phyteral chip or powder proportioning.
4. environmentally-friendly sludge solid fuel as claimed in claim 1 is characterized in that: described hogwash fat comprises the hole canal oil of refining or thick refining.
5. the preparation method of environmentally-friendly sludge solid fuel, it is characterized in that: its step is as follows
1) according to the proportioning of claim 1 mud is inserted translucent rotating sealing and stir in companion's machine, add 0.01%-3.5% potassium permanganate, stir the companion and add the 0.1%-8% Industrial Salt after 5 minutes, continued to stir the companion 5-20 minute;
2) pass through sealing-duct, mud after the step 1) processing all is transported to another translucent rotating sealing that 20%-50% biomass adsorbent has been housed to be stirred in companion's jar, stir the companion after 5-15 minute, mud after mixing all is transported to the transfer jar by sealing-duct, and carry out the water-soluble after-odour absorption of the biomass first time, discharge qualified air;
3) will be through step 2) mixing sludge after handling carries out sludge dewatering by pipe-line transportation in the screw machine water mangle, obtain the mixing sludge of solid content 50-65%, simultaneously with the sewage that produces by pipe special be discharged into treatment tank or nearby Sewage Plant handle qualified discharging;
4) with above-mentioned mixing sludge by pipe-line transportation in another screw machine water mangle, carry out sludge dewatering again, obtain the powdery mixing sludge of solid content 70-80%, the sewage that this produces in stage also by pipe special be discharged into treatment tank or nearby Sewage Plant handle qualified discharging;
5) the powdery mixing sludge after will handling through step 4) by pipe-line transportation in bicirculating 100-180 ℃ drying system, obtain the powdery mixing sludge of solid content 90%-98%, the water vapour that this stage produces imports Recycling in the circulation drying system through dust removal and filtration and the back of the water-soluble after-odour absorption of biomass for the second time, and discharges qualified air;
6) above-mentioned powdery mixing sludge is arrived blend tank by pipe-line transportation, spray into the 1%-10% hogwash fat, the burnt agent of 0.1%-3% deashingization was stirred the companion 3-7 minute;
7) with step 6) mixed raw materials input pressure shaper, pressurization manufactures filled circles column or hollow cylindrical product;
8) moulding product input cooling duct through being cooled to 22-35 ℃, obtains finished product, and the packing back is for sale.
Priority Applications (1)
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| CN 200910040486 CN101684422B (en) | 2009-06-24 | 2009-06-24 | Environmentally-friendly sludge solid fuel and preparation method thereof |
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| CN 200910040486 CN101684422B (en) | 2009-06-24 | 2009-06-24 | Environmentally-friendly sludge solid fuel and preparation method thereof |
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| CN102358861A (en) * | 2011-09-21 | 2012-02-22 | 王东 | Preparation method of biomass sludge regenerated fuel charcoal |
| CN102533381A (en) * | 2012-02-09 | 2012-07-04 | 湖北鼎鑫环保科技有限公司 | Method for preparing fuel by using sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289637A (en) * | 2007-08-01 | 2008-10-22 | 容文钰 | Method for preparing clean fuel derived from sludge |
| CN101376855A (en) * | 2008-04-30 | 2009-03-04 | 汤广武 | Sludge synthetic fuel and preparation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289637A (en) * | 2007-08-01 | 2008-10-22 | 容文钰 | Method for preparing clean fuel derived from sludge |
| CN101376855A (en) * | 2008-04-30 | 2009-03-04 | 汤广武 | Sludge synthetic fuel and preparation thereof |
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| JP特开平11-90497A 1999.04.06 |
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