CN109054920A - A kind of technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel - Google Patents

A kind of technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel Download PDF

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Publication number
CN109054920A
CN109054920A CN201810931636.6A CN201810931636A CN109054920A CN 109054920 A CN109054920 A CN 109054920A CN 201810931636 A CN201810931636 A CN 201810931636A CN 109054920 A CN109054920 A CN 109054920A
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derivatived fuel
garbage derivatived
technique
hydrothermal pretreatment
drying
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唐玉婷
黄涛
马晓茜
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201810931636.6A priority Critical patent/CN109054920A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
    • C10L2290/141—Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/28—Cutting, disintegrating, shredding or grinding
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/32—Molding or moulds
    • 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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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The invention discloses a kind of techniques that coupling hydrothermal pretreatment prepares garbage derivatived fuel.Preparation process is as follows: carrying out broken bag and sorting to domestic waste, obtains combustible component；Then combustible component is crushed；Then broken combustible component and deionized water are put into high-temperature high-pressure reaction kettle and carry out hydro-thermal process；Adhesive is added, stirring forms mixed material；After last extrusion forming and heated-air drying for finished product.The present invention can make rubbish material that hydro-thermal reaction sufficiently uniformly occur, and energy consumption is lower, so that water removes in liquid form in rubbish material, reduce main hydrophily oxygen-containing functional group quantity, substantially change the physical voids structure of derivatived fuel；In addition, hydro-thermal process is able to achieve the purpose of degradation dioxin and fixed heavy metal.Therefore garbage derivatived fuel calorific value height that obtains, flameholding, be easy to transport, storage, pollutant emission is low, heavy metal free pollutes, realize the minimizing of house refuse, innoxious and recycling.

Description

A kind of technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel
Technical field
The present invention relates to environmental protection, energy technology field, in particular to a kind of to be based on hydro-thermal process house refuse combustible component The method for preparing garbage derivatived fuel is suitable for Domestic Waste Minimization, innoxious and recycling treatment.
Background technique
With the quickening of Urbanization in China and the raising of living standards of the people, the yield of domestic waste is sharply Increase, effect on environment is increasing, and domestic rubbish disposal has become whole society's focus of attention problem.To domestic waste It is handled, makes its minimizing, innoxious and recycling, be various an urgent demands such as environment, economy, society.
The processing mode of China's domestic waste mainly landfill, compost and burning.Landfill method is by house refuse collection Middle stacking is directly buried, and land occupation easily pollutes underground water and atmosphere；Composting method is will be inorganic in house refuse Object removal, then fertilizer is made in residual organic substances, but the processing time is long, enforcement difficulty is high；Incineration method is that house refuse is direct It burns to recycle thermal energy, but combustion instability, utilization rate is low, is also easy to produce dioxin, and flying dust containing heavy metal is difficult to handle.To fill Divide the thermal energy using house refuse, it is maximally efficient approach that derivatived fuel, which is made, in domestic waste.
Garbage derivatived fuel (RDF-5) is domestic waste by made of the processes such as sorting, broken, extruding and drying A kind of solid fuel.Compared with crude waste, RDF has that calorific value height, flameholding, secondary pollution are low, easily stored transport etc. Feature is good fossil alternative fuel, is widely used in the necks such as dry engineering, cement works, Heat Supply Engineering and generation engineering Domain.
The composition of domestic waste changes with the change in season and area, therefore the performance of garbage derivatived fuel is unstable It is fixed.Currently, garbage derivatived fuel (RDF) general preparation method is first by simply sorting the ash in domestic waste Soil and metal are gone out, and are then prepared derivatived fuel by primary raw material of residual refuse again, are removed in raw material flammable containing house refuse Group exceptionally, also contains the rubbish from cooking of a large amount of low heat values, the plastic garbage and heavy metal substance of some high pollutions.The preparation skill Art has the disadvantage that rubbish from cooking moisture content is high, calorific value is low, causes that derivatived fuel calorific value is low, energy consumption is high by preparation process；Due to The ingredient of some plastics is polyvinyl chloride, therefore when derivatived fuel burns dioxin easily generated；Heavy metal when derivatived fuel burns Substance, which is evaporate into, to be difficult to handle in flying dust.On the whole, RDF Preparation equipment in China is still not yet extensive at present launches, raw It is the bottleneck problem of its industry development that the cost of producing line is excessively high, to form energy consumption excessively high.When raw material moisture is lower, RDF mouldability compared with Good, stick is long and surface is smooth；And water content it is higher when, raw material internal moisture spilling when being pressurized will easily cause inside RDF and occur Cavity causes RDF intensity to decline.It can be seen that dehydration is the key that reduce RDF energy consumption and cost, and RDF mass directly affects The operational effect of subsequent thermal conversion system.
Hydro-thermal is a kind of process chemically reacted under the conditions of high-temperature high pressure water, is as a kind of preconditioning technique A kind of " non-evaporation " drying and dehydrating mode and a kind of effective modifying process.Water is in liquid form in material in water-heat process Removing, can effectively remove hydrophily oxygen-containing functional group, the hydrophobic performance of improving material；Hydro-thermal process can remove in material simultaneously N, S, Cl compound and fixed heavy metal etc..
The preconditioning technique of RDF is prepared using hydrothermal process as MSW, can not be influenced by crude waste moisture content, it is most of Irreducible water can be changed into Free water in conjunction with water, realize irreversibly removing in liquid form for interior water, save gasification latent heat, province Brief biography is united expensive drying steps in RDF technology of preparing, and can by hydrophilic oxygen-containing functional groups such as removing carboxyl, carbonyls, Improve fuel surface wetability, reduce its solid water and weight water absorbing capacity, effectively prevent RDF after molding existing in the weight gain of storage and transportation mesometamorphism The generation of elephant is conducive to the Whole Process Control of RDF mass.Water-heat process can increase the carbon content of fuel so that the calorific value of RDF and Energy density improves.Gu the addition of sour agent is to HCl, SO in RDF combustion process2There is removal effect, but its deacidification efficiency still mentions Between lift-off.If higher HCl, SO can be still able to maintain under low Ca/Cl, Ca/S molar ratio2Removal efficiency, then it is de- to RDF and burning The popularization and application of chlorine desulfurization technology have great impetus.RDF preparation coupling water-heat process can Cl, S in cooperation-removal fuel, N, The harmful elements such as heavy metal are expected to while solving shaped article quality problems, realize it is safe and efficient, it is clean production and It utilizes.
Summary of the invention
Object of the present invention is to couple hydrothermal pretreatment to prepare high heating value, low pollution, it can be used for burning, be pyrolyzed and use of gasifying Garbage derivatived fuel method.
The technical solution that the present invention provides are as follows:
A kind of coupling hydrothermal pretreatment prepares the technique of garbage derivatived fuel, flammable to house refuse by the method for hydro-thermal process Moisture and harmful substance in material are removed, to realize the combustibility for improving garbage derivatived fuel and reduce pollution The purpose of object discharge；Specific step is as follows:
(1) domestic waste enters bag-breaking machine, and broken bag tears the bagged garbage in rubbish convenient for subsequent processing；
(2) combustible component in domestic waste is sub-elected；
(3) house refuse combustible component is crushed, 95% size of guarantee total particle number is in 20mm hereinafter, levigate again To granularity less than 1 mm；
(4) house refuse combustible component is mixed with deionized water and is put into hydrothermal reaction kettle, then reaction kettle is sealed, added Heat makes hydrothermal reaction kettle be warming up to 200~290 DEG C and keeps 0.5~3h, cooling water heat reaction kettle to room temperature, by product solid-liquid Separation, the rubbish combustible component after obtaining hydro-thermal process；
(5) binder is added by derivatived fuel composition and ratio, and stirs evenly and forms mixed material；
(6) extrusion forming and drying, by mixed material extrusion forming, up to product garbage derivatived fuel after drying.
Further, the garbage derivatived fuel is graininess, bulk or honeycomb.
Further, the binder is the mixture of industrial cornstarch and sodium humate；Industrial cornstarch It is respectively as follows: industrial cornstarch 1.5~2.5%, sodium humate 1.0% with the mass percent that sodium humate accounts for derivatived fuel.
Further, in step (2), the sorting comprises at least one of the following method for separating: pneumatic separating, magnetic point Choosing, rotary screen sorting, vibrating screen sorting.
Further, in step (2), the sorting further includes by the hard constituents and soft composition in the house refuse It separates, convenient for being crushed respectively.
Further, described broken including using following at least one crumbling method: shearing broken, jaw crushing, punching It is broken to hit formula.
Further, in step (5), the mixing is mixed including the use of blender or spiral mixer.
Further, in step (6), the drying is drying, and 150~200 DEG C of drying temperature, moisture content is after drying 5%~10%.
Hydro-thermal process can effectively remove the moisture in rubbish combustible component as a kind of method for substituting conventional drying, and Energy consumption is lower；Meanwhile hydro-thermal process can remove sulphur and chlorine in rubbish material, save the use of depickling medicament；In addition, also right Part heavy metal has preferable stablizing effect, and degradable dioxin, the row of dioxin when reducing garbage derivatived fuel burning Put and flying dust in content of beary metal.
The preparation method of garbage derivatived fuel of the present invention it can be seen from above-mentioned technical proposal, at hydro-thermal For reason so that in the hydro-thermal reaction kettle device of high temperature and pressure hydro-thermal reaction sufficiently uniformly occurs for house refuse, house refuse is flammable Water in component excludes in liquid form, to save gasification latent heat；Make simultaneously Cl, S in rubbish, N, dioxin ( PCDD/Fs it) is able to degradation to eliminate, heavy metal ion is stablized；Garbage derivatived fuel calorific value obtained is high, and pollution is low, can use It is used in burning, pyrolysis and gasification.
Compared with the prior art, the advantages of the present invention are as follows:
(1) preconditioning technique of RDF is prepared using hydrothermal process as MSW, can not be influenced by crude waste moisture content, most of beam It ties up water and Free water can be changed into conjunction with water, realize irreversibly removing in liquid form for interior water, save gasification latent heat, omit Expensive drying steps in conventional RD F technology of preparing, and can be changed by hydrophilic oxygen-containing functional groups such as removing carboxyl, carbonyls Kind fuel surface wetability reduces its solid water and weight water absorbing capacity, and RDF is in storage and transportation mesometamorphism weight gain phenomenon after effectivelying prevent molding Generation, be conducive to the Whole Process Control of RDF mass.Water-heat process can increase the carbon content of fuel, so that the calorific value and energy of RDF Metric density improves.
(2) addition of solid sour agent is to HCl, SO in RDF combustion process2There is removal effect, but its deacidification efficiency still has promotion Space.RDF preparation coupling water-heat process can harmful elements such as Cl, S, N, heavy metal in cooperation-removal fuel, be expected to solve at While type product quality problem, safe and efficient, clean production and utilization are realized.
Detailed description of the invention
Fig. 1 is the process flow chart that a kind of coupling hydrothermal pretreatment of the present invention prepares garbage derivatived fuel.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
Embodiment 1
Domestic waste is entered into bag-breaking machine broken bag process, then screening process is carried out using magnetic separation, selection by winnowing, gravity preparation, goes Except inorganic incombustible such as metal, brick and tile, dirt, glass in rubbish；
Will after screening remaining flammable house refuse through broken crusher machine, it is levigate to granularity less than 1 mm；
House refuse combustible component is mixed with deionized water 1:1 in mass ratio, then is placed on blender and stirs 30min.
Obtained mixed system is put into closed reaction kettle, extracts air in kettle out, temperature is risen to 220 DEG C, is reached 1h is kept the temperature after predetermined temperature, cools down reaction kettle later to room temperature.In the hydro-thermal reaction kettle device of high temperature and pressure, house refuse can Water in combustion component excludes in liquid form, to save gasification latent heat；Simultaneously make Cl, S in rubbish, N, dioxin ( PCDD/Fs it) is able to degradation to eliminate, heavy metal ion is stablized.
Obtained product is separated by solid-liquid separation, wherein treated, and solid product is used to prepare garbage derivatived fuel, gives up Water direct emission is discharged after processing.
Adhesive (the industrial cornstarch for accounting for solid component total weight 3% is added in the solid component of above-mentioned acquisition 2%, sodium humate 1%), and stir evenly and to form mixed material；
Mixed material is sent directly into molding machine extrusion forming into garbage derivatived fuel；
The above-mentioned derivatived fuel prepared is dried, 150 DEG C of drying temperature, the garbage derivatived fuel moisture content after drying is 7.5%。
The calorific value of the garbage derivatived fuel obtained is 14204.0kJ/kg, the raising 90% than MSW；Heap density obviously increases It greatly, is 2360kg/m3, it is 5.5 times of MSW；Cl content 1.92%, N content 1.01%, S content 0.28%, content of ashes 21%, ash Slag clinker ignition loss is 3.5%.Weight water absorbing capacity is weaker, does not show caking property, is readily transported and stores.
Embodiment 2
Domestic waste is entered into bag-breaking machine broken bag process, then screening process is carried out using magnetic separation, selection by winnowing, gravity preparation, goes Except inorganic incombustible such as metal, brick and tile, dirt, glass in rubbish；
Will after screening remaining flammable house refuse it is levigate to be less than 1mm to granularity through broken crusher machine；
House refuse combustible component is mixed with deionized water 1.2:1 in mass ratio, then is placed on blender and stirs 30min.
Obtained mixed system is put into closed reaction kettle, extracts air in kettle out, temperature is risen to 250 DEG C, is reached 1h is kept the temperature after predetermined temperature, cools down reaction kettle later to room temperature.
Obtained product is separated by solid-liquid separation, wherein treated, and solid product is used to prepare garbage derivatived fuel, gives up Water direct emission is discharged after processing.
Adhesive (the industrial cornstarch for accounting for solid component total weight 3% is added in the solid component of above-mentioned acquisition 2%, sodium humate 1%), and stir evenly and to form mixed material；
Mixed material is sent directly into molding machine extrusion forming into garbage derivatived fuel；
The above-mentioned derivatived fuel prepared is dried, 160 DEG C of drying temperature, the garbage derivatived fuel moisture content after drying is 7.2%。
The calorific value of the garbage derivatived fuel obtained is 14750.0kJ/kg, the raising 97% than MSW；Heap density obviously increases It greatly, is 2495kg/m3, it is 5.8 times of MSW；Cl content 1.90%, N content 1.01%, S content 0.26%, content of ashes 21%, ash Slag clinker ignition loss is 3.5%.Weight water absorbing capacity is weaker, does not show caking property, is readily transported and stores.
Embodiment 3
Domestic waste is entered into bag-breaking machine broken bag process, then screening process is carried out using magnetic separation, selection by winnowing, gravity preparation, goes Except inorganic incombustible such as metal, brick and tile, dirt, glass in rubbish；
Will after screening remaining flammable house refuse it is levigate to be less than 1mm to granularity through broken crusher machine；
House refuse combustible component is mixed with deionized water by quality 1.5:1, then is placed on blender and stirs 30min.
Obtained mixed system is put into closed reaction kettle, extracts air in kettle out, temperature is risen to 290 DEG C, is reached 1.5h is kept the temperature after predetermined temperature, cools down reaction kettle later to room temperature.
Obtained product is separated by solid-liquid separation, wherein treated, and solid product is used to prepare garbage derivatived fuel, gives up Water direct emission is discharged after processing.
Adhesive (the industrial cornstarch for accounting for solid component total weight 3% is added in the solid component of above-mentioned acquisition 2%, sodium humate 1%), and stir evenly and to form mixed material；
Mixed material is sent directly into molding machine extrusion forming into garbage derivatived fuel；
By the above-mentioned derivatived fuel drying prepared, 180 DEG C of drying temperature, the garbage derivatived fuel moisture content after drying is 6%.
The calorific value of the garbage derivatived fuel obtained is 15104.0kJ/kg, the raising 102% than MSW；Heap density is obvious Increase, is 2509kg/m3, it is 5.84 times of MSW；Cl content 1.87%, N content 1.00%, S content 0.25%, content of ashes 21%, Lime-ash clinker ignition loss is 3.5%.Weight water absorbing capacity is weaker, does not show caking property, is readily transported and stores.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all of the invention Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the claims in the present invention within spirit and principle Within the scope of.

Claims (8)

1. a kind of technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel, which is characterized in that pass through the method for hydro-thermal process To in house refuse combustible material moisture and harmful substance remove, thus realize improve garbage derivatived fuel flammability It can and reduce the purpose of pollutant emission；Specific step is as follows:
(1) domestic waste enters bag-breaking machine, and broken bag tears the bagged garbage in rubbish convenient for subsequent processing；
(2) combustible component in domestic waste is sub-elected；
(3) house refuse combustible component is crushed, 95% size of guarantee total particle number is in 20mm hereinafter, levigate again To granularity less than 1 mm；
(4) house refuse combustible component is mixed with deionized water and is put into hydrothermal reaction kettle, then reaction kettle is sealed, added Heat makes hydrothermal reaction kettle be warming up to 200~290 DEG C and keeps 0.5~3h, cooling water heat reaction kettle to room temperature, by product solid-liquid Separation, the rubbish combustible component after obtaining hydro-thermal process；
(5) binder is added by derivatived fuel composition and ratio, and stirs evenly and forms mixed material；
(6) extrusion forming and drying, by mixed material extrusion forming, up to product garbage derivatived fuel after drying.
2. the technique that the coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 1, which is characterized in that described Garbage derivatived fuel is graininess, bulk or honeycomb.
3. the technique that the coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 1, which is characterized in that described Binder is the mixture of industrial cornstarch and sodium humate；Industrial cornstarch and sodium humate account for derivatived fuel Mass percent is respectively as follows: industrial cornstarch 1.5~2.5%, sodium humate 1.0%.
4. the technique that the coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 1, which is characterized in that step (2) in, the sorting comprises at least one of the following method for separating: pneumatic separating, magnetic sorting, rotary screen sorting, vibrosieve Choosing.
5. the technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 4, which is characterized in that step (2) in, the sorting further includes separating hard constituents and the soft composition in the house refuse, convenient for carrying out brokenly respectively It is broken.
6. the technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 5, which is characterized in that described broken Broken to include using following at least one crumbling method: shearing broken, jaw crushing, impact type are crushed.
7. the technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 1, which is characterized in that step (5) in, the mixing is mixed including the use of blender or spiral mixer.
8. the technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel according to claim 5, which is characterized in that step (6) in, the drying is drying, and 150~200 DEG C of drying temperature, moisture content is 5%~10% after drying.
CN201810931636.6A 2018-08-16 2018-08-16 A kind of technique that coupling hydrothermal pretreatment prepares garbage derivatived fuel Pending CN109054920A (en)

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CN117287703A (en) * 2023-11-09 2023-12-26 北京汇园生态科技有限公司 Urban solid waste treatment method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115055479A (en) * 2022-05-13 2022-09-16 中国城市建设研究院有限公司 Decoration garbage treatment device and method
CN115055479B (en) * 2022-05-13 2022-12-20 中国城市建设研究院有限公司 Decoration garbage treatment device and method
CN117287703A (en) * 2023-11-09 2023-12-26 北京汇园生态科技有限公司 Urban solid waste treatment method
CN117287703B (en) * 2023-11-09 2024-06-07 北京汇园生态科技有限公司 Urban solid waste treatment method

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