CN106077029A - Domestic garbage resource integrated conduct method and processing system - Google Patents

Domestic garbage resource integrated conduct method and processing system Download PDF

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Publication number
CN106077029A
CN106077029A CN201610439932.5A CN201610439932A CN106077029A CN 106077029 A CN106077029 A CN 106077029A CN 201610439932 A CN201610439932 A CN 201610439932A CN 106077029 A CN106077029 A CN 106077029A
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China
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outlet
rubbish
combustiblerefuse
gas
entrance
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CN201610439932.5A
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Chinese (zh)
Inventor
包欣欣
贾懿曼
陶进峰
王江华
王鹏飞
吴道洪
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北京神雾环境能源科技集团股份有限公司
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Priority to CN201610439932.5A priority Critical patent/CN106077029A/en
Publication of CN106077029A publication Critical patent/CN106077029A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B5/00Operations not covered by single other subclass or by a single other group in this subclass
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form

Abstract

The present invention proposes domestic garbage resource integrated conduct method and processing system, and wherein, processing method includes: carry out house refuse sorting break process, in order to obtain rubbish from cooking and combustiblerefuse;Rubbish from cooking is carried out anaerobic fermentation process, in order to obtain biogas and residue;And combustiblerefuse is carried out carbonization process, in order to obtain flue gas, pyrolysis oil gas and residual solid.House refuse is divided into kitchen excess and combustiblerefuse by the domestic garbage resource integrated conduct method using the above embodiment of the present invention, and being respectively directed to property process, and then not only sufficiently achieved the harmless treatment of rubbish, non-secondary pollution, especially produce without two English, and reduction is good, resource level is high, and product economy is profitable.

Description

Domestic garbage resource integrated conduct method and processing system

Technical field

The invention belongs to field of solid waste treatment, specifically, the present invention relates to domestic garbage resource General Office Reason method and processing system.

Background technology

In terms of global point, along with economic is grown continuously and fast, living standards of the people improve rapidly, and urbanization process is not Disconnected quickening, but the environmental problem simultaneously faced also is on the rise, the particularly process of rubbish.How to solve municipal solid wastes Problem, also one health of the mankind, clean living environment, caused the great attention in the whole world.Within 2010, China's house refuse is produced Measuring 1.58 hundred million tons, surrounding city adds up to store up rubbish and has reached 7,000,000,000 tons, takes up an area about more than 80 ten thousand mu, almost has in 661 cities The city of 2/3 is surrounded by rubbish, and environment creates serious harm.

Domestic rubbish disposal mode mainly includes the sides such as sanitary landfills, burning, compost, pyrolysis and comprehensive garbage disposal Method.Although wherein landfill technology is the most ripe, Construction and operation expense is low, and treating capacity is big, however it is necessary that and takies a large amount of soil, site Selection Consideration is extremely complex, and resource level is low, and loading embeading percolation liquid and biogas treatment there is also certain difficulty;Rubbish Burning is the process that solid waste carries out pyrolytic and deep oxidation, has volume reduction, decrement relatively big, can reclaim heat energy Etc. advantage, but, burning secondary pollution seriously, environmental and human health impacts is all caused by especially two English in incineration flue gas Harm, some burning disposal projects are because the common people's is strongly opposed to termination construction of having to;Garbage compost processes and is mainly used in The rural garbage that China's content of organics is higher, straw waste and vast small and medium-sized cities.Although composting technology can effectively volume reduction Decrement, reaches recycling effect, but compost there is also a lot of problem, such as adaptability to raw material due to the limitation of self Difference, heavy metal pollution problem is serious, and composting production sales volume is the best.

China's domestic waste be mainly derived from the daily daily life of family life, the food debris of diet, all kinds of device, The packaging bag of article, wrapping paper, large quantities of waste paper and textile, old metal etc., component of refuse is complicated, mostly is composting.Mesh Front garbage disposal, still based on sanitary landfills, is aided with the mode such as waste incineration, compost.Wherein waste incineration is applied to south more Developed area, north most area then uses landfill disposal rubbish.This process rubbish only with single treatment mode The waste disposal method that rubbish or landfill combine with burning, or effectively cannot carry out thorough innoxious minimizing for garbage property Process, or resource level is low, or secondary pollution the most all can not reach good treatment effect.It is thus desirable to for me State's house refuse characteristic, uses novel integrated conduct method, reach the abundant resource of all the components in rubbish, minimizing, Harmless treatment.

Summary of the invention

It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention One purpose is to propose one way of life garbage as resource integrated conduct method and processing system, utilizes the method and the system can It is effectively realized the harmless treatment to house refuse.

According to an aspect of the present invention, the present invention proposes one way of life garbage as resource integrated conduct method, including:

Carry out house refuse sorting break process, in order to obtain rubbish from cooking and combustiblerefuse;

Described rubbish from cooking is carried out anaerobic fermentation process, in order to obtain biogas and residue;

Described combustiblerefuse is carried out carbonization process, in order to obtain flue gas, pyrolysis oil gas and residual solid;And

As fuel gas, described biogas is used for described carbonization process.

House refuse is divided into kitchen excess by the domestic garbage resource integrated conduct method using the above embodiment of the present invention And combustiblerefuse, and being respectively directed to property process, and then not only sufficiently achieved the harmless treatment of rubbish, non-secondary pollution, Especially producing without two English, and reduction is good, resource level is high, and product economy is profitable.

It addition, domestic garbage resource integrated conduct method according to the above embodiment of the present invention can also have the most attached The technical characteristic added:

In some embodiments of the invention, described flue gas is processed offer heat for described anaerobic fermentation.

In some embodiments of the invention, the processing method of above-described embodiment farther includes: in advance by described life Rubbish carries out filtration process in material hole, in order to isolate percolate;

Described percolate is carried out described anaerobic fermentation process.

In some embodiments of the invention, the processing method of above-described embodiment farther includes: by described pyrolysis oil gas Carry out condensing and purified treatment, in order to respectively obtain pyrolysis oil and pyrolysis gas;

Described pyrolysis gas is returned as fuel gas and is used for the process of described carbonization,

In some embodiments of the invention, the processing method of above-described embodiment farther includes: by described residual solid Carry out sorting process, in order to obtain white carbon black and ash.

In some embodiments of the invention, at the bag that takes a step forward that described combustiblerefuse is carried out carbonization process Include: be shaped described combustiblerefuse processing.

In some embodiments of the invention, the mean diameter of the combustiblerefuse after described forming processes is 10-100 milli Rice.

In some embodiments of the invention, the temperature that described anaerobic fermentation processes is 35-45 degree Celsius, and the time is 15- 20 days.

According to the second aspect of the invention, the present invention proposes one way of life garbage as resource total system, including:

Sorting breaker, described sorting breaker has house refuse entrance, rubbish from cooking outlet and combustiblerefuse Outlet;

Anaerobic fermentation tank, described anaerobic fermentation tank has rubbish from cooking entrance, methane outlet and residual outlet, described kitchen Remaining garbage inlet is connected with the outlet of described rubbish from cooking;

Carbonization stove, described carbonization stove has fuel gas entrance, combustiblerefuse entrance, exhanst gas outlet, pyrolysis oil Gas outlet and residual solid export, and described combustiblerefuse entrance is connected with the outlet of described combustiblerefuse;And

Described methane outlet is connected with the fuel gas entrance for described carbonization stove.

House refuse is divided into kitchen excess by the domestic garbage resource total system using the above embodiment of the present invention And combustiblerefuse, and being respectively directed to property process, and then not only sufficiently achieved the harmless treatment of rubbish, non-secondary pollution, Especially producing without two English, and reduction is good, resource level is high, and product economy is profitable.

It addition, domestic garbage resource total system according to the above embodiment of the present invention can also have the most attached The technical characteristic added:

In some embodiments of the invention, described exhanst gas outlet is connected with described anaerobic fermentation tank.

In some embodiments of the invention, the processing system of above-described embodiment farther includes: material hole, described material hole tool There are the outlet of primary garbage inlet alive, percolate and house refuse outlet, the outlet of described house refuse and described house refuse entrance Being connected, the outlet of described percolate is connected with anaerobic fermentation tank.

In some embodiments of the invention, the processing system of above-described embodiment farther includes:

Condensing unit, described condensing unit has pyrolysis oil gas entrance, pyrolysis oil outlet and pyrolysis gas outlet, described pyrolysis Oil gas entrance is connected with described pyrolysis oil gas vent;

Purifier, described purifier has pyrolysis gas entrance and a pure pyrolysis gas outlet, described pyrolysis gas entrance with Described pyrolysis gas outlet is connected, and described pure pyrolysis gas outlet is connected with the fuel gas entrance of described carbonization stove.

In some embodiments of the invention, the processing system of above-described embodiment farther includes: sorting unit, described point Screening device has residual solid entrance, white carbon black outlet and ash outlet, and described residual solid entrance exports with described residual solid It is connected.

In some embodiments of the invention, the processing system of above-described embodiment farther includes: shaped device, described one-tenth Type device is connected with the outlet of described combustiblerefuse and described combustiblerefuse entrance respectively.

Accompanying drawing explanation

Fig. 1 is the flow chart of domestic garbage resource integrated conduct method according to an embodiment of the invention.

Fig. 2 is the structural representation of domestic garbage resource total system according to an embodiment of the invention.

Fig. 3 is the structural representation of domestic garbage resource total system according to an embodiment of the invention.

Detailed description of the invention

Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.

According to an aspect of the present invention, the present invention proposes one way of life garbage as resource integrated conduct method, including: Carry out house refuse sorting break process, in order to obtain rubbish from cooking and combustiblerefuse;Rubbish from cooking is carried out anaerobic fermentation Process, in order to obtain biogas and residue;And combustiblerefuse is carried out carbonization process, in order to obtain flue gas, pyrolysis oil Gas and residual solid.

Sorting consumer waste is rubbish from cooking by the domestic garbage resource integrated conduct method of the above embodiment of the present invention And combustiblerefuse, and the feature that the high and easy putrefaction of water content that has for rubbish from cooking further is many, use anaerobism to send out Ferment processes, and then effectively can process rubbish from cooking, and produces recycling biogas;Adopt for combustiblerefuse Process with carbonization, be possible not only to be effectively prevented from producing two English, and pyrolysis oil, pyrolysis gas and white carbon black etc. can be obtained Recycling product.Therefore, the domestic garbage resource integrated conduct method of the above embodiment of the present invention not only sufficiently achieves The harmless treatment of rubbish, non-secondary pollution especially produces without two English, and reduction is good, and resource level is high, Product economy is profitable.

According to the specific embodiment of the invention, describe the house refuse money of the specific embodiment of the invention in detail below with reference to Fig. 1 Source integrated conduct method.

S100: house refuse pretreatment

According to a particular embodiment of the invention, the most just house refuse carries out sorting break process, in order to obtain more than kitchen Rubbish and combustiblerefuse.

According to a particular embodiment of the invention, sorting break process can use bag-breaking machine to carry out after dehydration garbage bag breaking Sorting, is rubbish from cooking by refuse classification, combustiblerefuse and metal, dregs, and breaks kitchen excess and combustiblerefuse respectively Broken.

According to a particular embodiment of the invention, assorting room can include the sorting of magnetic sorting, vibrosieve and cylinder screening One or more chosen;Shattering process breaker is 2-3 level, and broken particle diameter is 10mm-80mm.Wherein, sorting obtains Combustiblerefuse can include plastics, rubber, stationery, fabric etc..

Domestic garbage resource integrated conduct method according to the specific embodiment of the invention, may further include: in advance House refuse is carried out filtration process in material hole, in order to isolate percolate;Percolate is carried out anaerobic fermentation process.Thus Filtered by the heap of rubbish early stage, can effectively reduce the moisture content of rubbish, so can reduce later separation obtain flammable The water content of rubbish, reduces carbonization and processes energy consumption.The percolate concurrently separating out can be with later separation through collection Obtain rubbish from cooking and together carry out anaerobic fermentation process, and then be possible not only to avoid the problem that sewage disposal is difficult, the most also may be used Think that anaerobic fermentation provides more favourable environment, improve anaerobic fermentation efficiency.

Specifically, house refuse can be carried out filtration process before carrying out sorting break process, will house refuse In discharging platform pours material hole into, and stopping 1-7 days in hole, to ensure its sufficiently dehydration, mixing, after diafiltration, rubbish contains Water rate is less than 25%.

S200: anaerobic fermentation processes

According to a particular embodiment of the invention, further, the rubbish from cooking that above-mentioned sorting break process obtains is carried out Anaerobic fermentation processes, in order to obtain biogas and residue.It is thus directed towards the spy that the high and easy putrefaction of water content of rubbish from cooking is many Point, using anaerobic fermentation to process can preferably process rubbish from cooking, and then improves treatment effeciency.

According to a particular embodiment of the invention, the temperature that rubbish from cooking carries out anaerobic fermentation process can be that 35-45 takes the photograph Family name's degree, the time can be 15-20 days, and then Organic substance can be degraded by microorganisms fully into stable in properties digested sludge also Produce biogas, in order to improve anaerobic fermentation treatment effeciency further.

S300: carbonization processes

According to a particular embodiment of the invention, further, the combustiblerefuse that above-mentioned sorting break process obtains is carried out Carbonization processes, in order to obtain flue gas, pyrolysis oil gas and residual solid.Carbonization is thus used to process and can effectively keep away Exempt to produce two English pollutant.Therefore, the embodiment of the present invention domestic garbage resource integrated conduct method more safety and environmental protection, Innoxious.

According to a particular embodiment of the invention, farther included before combustiblerefuse is carried out carbonization process: will Combustiblerefuse is shaped processing.Thus can improve material heat conduction, improve the pyrolysis uniformity, in order to improve dry further Evaporate pyrolysis processing efficiency.According to the concrete example of the present invention, after can pulverizing, combustiblerefuse compresses through garbage-molding device Being shaped to bar-shaped, pie or granular as carbonization raw material, the mean diameter of the combustiblerefuse after forming processes is permissible For 10-100 millimeter, carbonization treatment effeciency thus can be significantly improved.

S400: resource recycles

Domestic garbage resource integrated conduct method according to the specific embodiment of the invention, farther includes: by pyrolysis oil Gas carries out condensing and purified treatment, in order to respectively obtain pyrolysis oil and pyrolysis gas;Pyrolysis gas is returned as fuel gas and is used for doing Evaporate pyrolysis processing.Thus carbonization can be processed the pyrolysis gas produced and be returned from use, and then dry distilling can be reduced further Pyrolysis processing energy consumption.

Domestic garbage resource integrated conduct method according to the specific embodiment of the invention, farther includes: remnants are solid Body carries out sorting process, in order to obtain white carbon black and ash.Wherein, white carbon black can be sold as solid fuel or reducing agent.

Domestic garbage resource integrated conduct method according to the specific embodiment of the invention, farther includes: made by biogas Process for carbonization for fuel gas, the flue gas that carbonization process produces can also be used for anaerobic fermentation simultaneously and process, Process for anaerobic fermentation and heat is provided.Thus the anaerobic fermentation of rubbish from cooking is processed the biogas and combustiblerefuse produced by inventor Carbonization process the flue gas produced and mutually utilize, and then not only make resource be maximally utilized, subtract simultaneously The discharge of flue gas and the waste of heat are lacked.

Specifically, molding combustiblerefuse is fed in carbonization stove, use anaerobic fermentation process the biogas produced and do Evaporate pyrolysis processing produce pyrolysis gas provide thermal source make carbonization stove in material be gradually heated to 600-850 DEG C, during stop Between 0.5-3h.Thus, combustiblerefuse is carried out carbonization and processes without being additionally provided thermal source, and then significantly reduce life The process energy consumption of rubbish.

The output object of domestic garbage resource integrated conduct method according to the above embodiment of the present invention includes metal, slag Soil, digested sludge, pyrolysis oil, rubbish charcoal.Wherein, metal collection is sold;Dregs includes pretreatment unit dregs and carbonization Unit dirt, fills after collection;Digested sludge is sold as fertilizer;Pyrolysis oil is sold as fuel oil or industrial chemicals;Rubbish Rubbish charcoal is sold as solid fuel or reducing agent.

Use the domestic garbage resource integrated conduct method of the above embodiment of the present invention, by house refuse is divided into kitchen Remaining rubbish and the big class of combustiblerefuse two are also respectively processed further, can reduce the moisture content of combustiblerefuse in rubbish, carry High oil, gas, the productivity of charcoal;Rubbish from cooking can obtain fertilizer and biogas, the biogas of fermentation generation and pyrolysis by anaerobic fermentation The pyrolysis gas produced can serve as the thermal source that carbonization processes, and the waste heat that carbonization processes the flue gas produced is that anaerobism is sent out Ferment provides heat energy so that it is be maintained at the temperature of 35-45 DEG C.

According to a further aspect in the invention, the invention allows for one way of life garbage as resource total system, as Shown in Fig. 2, including: sorting breaker 10, anaerobic fermentation tank 20, carbonization stove 30, wherein, sorting breaker 10 has House refuse entrance 11, rubbish from cooking outlet 12 and combustiblerefuse outlet 13;Anaerobic fermentation tank 20 have rubbish from cooking entrance 21, Methane outlet 22 and residual outlet 23, rubbish from cooking entrance 21 is connected with rubbish from cooking outlet 12;And carbonization stove 30 There is fuel gas entrance 31, combustiblerefuse entrance 32, exhanst gas outlet 33, pyrolysis oil gas vent 34 and residual solid outlet 35, can Combustion garbage inlet 32 is connected with combustiblerefuse outlet 13.

Use the domestic garbage resource total system of the above embodiment of the present invention, house refuse is broken in sorting Carry out in device 10 sorting break process, in order to obtain rubbish from cooking and combustiblerefuse;By rubbish from cooking at anaerobic fermentation tank 20 Inside carry out anaerobic fermentation process, in order to obtain biogas and residue;And combustiblerefuse is done in carbonization stove 30 Evaporate pyrolysis processing, in order to obtain flue gas, pyrolysis oil gas and residual solid.

Thus, sorting consumer waste is more than kitchen by the domestic garbage resource total system of the above embodiment of the present invention Rubbish and combustiblerefuse, and the feature that the high and easy putrefaction of water content that has for rubbish from cooking further is many, employing is detested Aerobe fermentation processes, and then effectively can process rubbish from cooking, and produces recycling biogas;For can Combustion rubbish uses carbonization stove to process, and is possible not only to be effectively prevented from producing two English, and can obtain pyrolysis oil, The recycling product such as pyrolysis gas and white carbon black.Therefore, the domestic garbage resource total system of the above embodiment of the present invention Not only having sufficiently achieved the harmless treatment of rubbish, non-secondary pollution especially produces without two English, and reduction is good, Resource level is high, and product economy is profitable.

According to the specific embodiment of the invention, describe the house refuse money of the specific embodiment of the invention in detail below with reference to Fig. 3 Source total system.

According to a particular embodiment of the invention, sorting breaker 10 has house refuse entrance 11, rubbish from cooking outlet 12 and combustiblerefuse outlet 13.According to a particular embodiment of the invention, the most just house refuse is in sorting breaker 10 Carry out sorting break process, in order to obtain rubbish from cooking and combustiblerefuse.

According to a particular embodiment of the invention, sorting breaker can be included as bag-breaking machine, and employing bag-breaking machine will in advance Sort after dehydration garbage bag breaking, be rubbish from cooking by refuse classification, combustiblerefuse and metal, dregs, and be utilized respectively brokenly Kitchen excess and combustiblerefuse are crushed by broken machine.

According to a particular embodiment of the invention, assorting room can include the sorting of magnetic sorting, vibrosieve and cylinder screening One or more chosen;Shattering process breaker is 2-3 level, and broken particle diameter is 10mm-80mm.Wherein, sorting obtains Combustiblerefuse can include plastics, rubber, stationery, fabric etc..

Domestic garbage resource total system according to the specific embodiment of the invention, may further include: material hole 40, material hole 40 has primary garbage inlet alive 41, percolate outlet 42 and house refuse outlet 43, and house refuse outlet 43 is with raw Garbage inlet of living 11 is connected, and percolate outlet 42 is connected with anaerobic fermentation tank 20.And then, in advance by house refuse in material hole 40 Carry out filtration process, in order to isolate percolate;Percolate is carried out anaerobic fermentation process.

Heap from there through rubbish early stage is filtered, and can effectively reduce the moisture content of rubbish, and then can reduce later separation The water content of the combustiblerefuse obtained, reduce carbonization and process energy consumption.The percolate concurrently separating out can through collection Together carry out anaerobic fermentation process obtaining rubbish from cooking with later separation, and then be possible not only to avoid difficult the asking of sewage disposal Topic, simultaneously can also provide more favourable environment for anaerobic fermentation, improve anaerobic fermentation efficiency.

Specifically, house refuse can be carried out filtration process before carrying out sorting break process, will house refuse In discharging platform pours material hole into, and stopping 1-7 days in hole, to ensure its sufficiently dehydration, mixing, after diafiltration, rubbish contains Water rate is less than 25%.

According to a particular embodiment of the invention, anaerobic fermentation tank 20 has rubbish from cooking entrance 21, methane outlet 22 and residual Excess outlet 23, rubbish from cooking entrance 21 is connected with rubbish from cooking outlet 12.And then, above-mentioned sorting breaker 10 is processed To rubbish from cooking in anaerobic fermentation tank 20, carry out anaerobic fermentation process, in order to obtain biogas and residue.

Being thus directed towards the feature that the high and easy putrefaction of water content of rubbish from cooking is many, using anaerobic fermentation to process can be more preferable Rubbish from cooking is processed by ground, and then improves treatment effeciency.

According to a particular embodiment of the invention, the temperature carrying out anaerobic fermentation process in anaerobic fermentation tank can be 35-45 Degree Celsius, the time can be 15-20 days, and then Organic substance can be degraded by microorganisms the digested sludge into stable in properties fully And produce biogas, in order to improve anaerobic fermentation treatment effeciency further.

According to a particular embodiment of the invention, carbonization stove 30 has fuel gas entrance 31, combustiblerefuse entrance 32, cigarette Gas outlet 33, pyrolysis oil gas vent 34 and residual solid outlet 35, combustiblerefuse entrance 32 is connected with combustiblerefuse outlet 13.Enter And, above-mentioned sorting breaker 10 is processed the combustiblerefuse obtained carries out carbonization process in carbonization stove 30, with Just flue gas, pyrolysis oil gas and residual solid are obtained.

Thus use carbonization stove pyrolysis combustiblerefuse to process can be effectively prevented from producing two English pollutant.Cause This, the domestic garbage resource total system more safety and environmental protection of the embodiment of the present invention, innoxious.

Domestic garbage resource total system according to the specific embodiment of the invention, may further include: molding Device 50, shaped device 50 is connected with combustiblerefuse outlet 13 and combustiblerefuse entrance 32 respectively.And then, combustiblerefuse is being entered It is shaped in advance before entering carbonization stove 30 processing in shaped device 50.Thus can improve material heat conduction, carry The high pyrolysis uniformity, in order to improve carbonization treatment effeciency further.

According to the concrete example of the present invention, after can pulverizing, combustiblerefuse is excellent through garbage-molding device compression forming Shape, pie or granular as carbonization raw material, the mean diameter of the combustiblerefuse after forming processes can be 10-100 Millimeter, thus can significantly improve carbonization treatment effeciency.

Domestic garbage resource total system according to the specific embodiment of the invention, farther includes: condensing unit 60 and purifier 70, wherein, condensing unit 60 has pyrolysis oil gas entrance 61, pyrolysis oil outlet 62 and pyrolysis gas outlet 63, Pyrolysis oil gas entrance 61 is connected with pyrolysis oil gas vent 34;Purifier 70 has pyrolysis gas entrance 71 and pure pyrolysis gas outlet 72, pyrolysis gas entrance 71 is connected with pyrolysis gas outlet 63, pure pyrolysis gas outlet 72 and the fuel gas entrance of carbonization stove 30 31 are connected.And then, carry out condensing and purified treatment successively in condensing unit 60 and purifier 70 by pyrolysis oil gas, in order to point Do not obtain pyrolysis oil and pyrolysis gas;Pyrolysis gas is returned as fuel gas and is used for carbonization process.Thus can be by dry distilling heat Solution processes the pyrolysis gas produced and is returned from use, and then can reduce carbonization process energy consumption further.

Domestic garbage resource total system according to the specific embodiment of the invention, farther includes: sorting unit 80, sorting unit 80 has residual solid entrance 81, white carbon black outlet 82 and ash outlet 83, and residual solid entrance 81 is solid with remnants Body outlet 35 is connected.And then, combustiblerefuse is processed, through carbonization, the residual solid produced and carries out in sorting unit 80 Sorting process, in order to obtain white carbon black and ash.Wherein, white carbon black can be sold as solid fuel or reducing agent.

Domestic garbage resource total system according to the specific embodiment of the invention, farther includes: methane outlet 22 are connected with the fuel gas entrance 31 for carbonization stove 30, and exhanst gas outlet 33 is connected with anaerobic fermentation tank 20.And then, by natural pond Gas processes for carbonization as fuel gas, carbonization can also be processed the flue gas produced simultaneously and be used at anaerobic fermentation Reason, processes for anaerobic fermentation and provides heat.Thus the anaerobic fermentation of rubbish from cooking is processed the biogas produced with flammable by inventor The carbonization of rubbish processes the flue gas produced and mutually utilizes, and then not only makes resource be maximally utilized, with Time decrease the discharge of flue gas and the waste of heat.

Specifically, molding combustiblerefuse is fed in carbonization stove, use anaerobic fermentation process the biogas produced and do Evaporate pyrolysis processing produce pyrolysis gas provide thermal source make carbonization stove in material be gradually heated to 600-850 DEG C, during stop Between 0.5-3h.Thus, combustiblerefuse is carried out carbonization and processes without being additionally provided thermal source, and then significantly reduce life The process energy consumption of rubbish.

The output object of domestic garbage resource total system according to the above embodiment of the present invention includes metal, slag Soil, digested sludge, pyrolysis oil, rubbish charcoal.Wherein, metal collection is sold;Dregs includes pretreatment unit dregs and carbonization Unit dirt, fills after collection;Digested sludge is sold as fertilizer;Pyrolysis oil is sold as fuel oil or industrial chemicals;Rubbish Rubbish charcoal is sold as solid fuel or reducing agent.

Use the domestic garbage resource total system of the above embodiment of the present invention, by house refuse is divided into kitchen Remaining rubbish and the big class of combustiblerefuse two are also respectively processed further, can reduce the moisture content of combustiblerefuse in rubbish, carry High oil, gas, the productivity of charcoal;Rubbish from cooking can obtain fertilizer and biogas, the biogas of fermentation generation and pyrolysis by anaerobic fermentation The pyrolysis gas produced can serve as the thermal source that carbonization processes, and the waste heat that carbonization processes the flue gas produced is that anaerobism is sent out Ferment provides heat energy so that it is be maintained at the temperature of 35-45 DEG C.

The domestic garbage resource integrated conduct method and the system that use the above embodiment of the present invention at least have following excellent One of point:

(1) the present invention is directed to China's domestic waste and mostly be the feature of composting, use the means such as crushing and screening to incite somebody to action Sorting consumer waste is rubbish from cooking, combustiblerefuse and metal, dregs, and assorting room is simple, classifies scientific and reasonable;

(2) for the feature that China's house refuse moisture content is high, rubbish enters first heap filter in dump pit after factory, effectively drops Moisture in low rubbish, improves the productivity of thermal decomposition product, simultaneously by leachate recirculation in anaerobic fermentation unit, it is to avoid rubbish is dirty Water processes difficult problem, and the percolate additionally recharged also functions to the purpose of fermentation moisture content regulation, thus improves biological treatment effect Rate;

(3) combustiblerefuse enters stokehold to pretreatment such as it are shaped, is bar-shaped, pie or grain by scattered garbage-molding Shape, increases the bulk density of rubbish, easily facilitates garbage feeding and uniform stone, improves garbage disposal ability;

(4) using carbonization method to process combustiblerefuse, change rubbish is pyrolysis gas, coke and pyrolysis oil, resource level Height, process secondary pollution is little, it is achieved that two English zero-emissions;

(5) produce biogas and low-calorie refuse pyrolysis gas provides energy as fuel gas for refuse pyrolysis, it is ensured that be System energy-autarchic, thus greatly reduce operating cost;

(6) thermal decomposition product includes pyrolysis gas, pyrolysis oil and rubbish charcoal, not only can be as fuel, it is also possible to as industry Raw material is sold, it is simple to accumulating, has than the more preferable economic worth that generates electricity;

(7) flue gas that pyrolysis produces is back to use anaerobic fermentation system, and the heat utilizing flue gas is the temperature keeping enough of fermenting Degree condition, had both processed the emission problem of flue gas, make use of again the waste heat of flue gas, saved energy consumption for system.

Embodiment 1

Using certain city's house refuse is raw material, becomes and is grouped into as shown in table 1.

Table 1 house refuse becomes to be grouped into (wt%)

A, rubbish pretreatment: according to composting characteristic by sorting, sieve, crush, the means such as molding obtain anaerobism and send out Ferment and carbonization raw material;

(1) house refuse storage: enter factory's rubbish in discharging platform pours dump pit into, and stop 3 days in hole, with guarantee It is sufficiently dehydrated, mixes, and after diafiltration, msw water content is less than 25%.The sewage separated is sent out through collecting feeding anaerobism Ferment unit, for anaerobic fermentation.

(2) sorting is broken: uses bag-breaking machine to sort after dehydration garbage bag breaking, is kitchen excess by refuse classification, can Combustion rubbish and metal, dregs, and respectively kitchen excess and combustiblerefuse are crushed.

Assorting room passes sequentially through magnetic sorting, vibrosieve sorting and rotary screen sorting;Shattering process breaker is 2-3 Level, broken particle diameter is 10mm-80mm;Combustiblerefuse includes the one or several in plastics, rubber, stationery, fabric and other material Kind.

(3) combustiblerefuse molding: by combustiblerefuse after pulverizing through garbage-molding equipment compression forming be bar-shaped, as dry Evaporating pyrolysis feed, its compression particle size range is 10-100mm.

B, anaerobic fermentation unit: described kitchen excess and described sewage mixed configuration form slurry are transported in fermentation tank, rubbish The flue gas that rubbish pyrolysis produces is passed through fermentation system, utilizes the heat in flue gas to keep fermentation temperature 35 DEG C to carry out anaerobic fermentation, sends out The ferment time of staying is 15 days, and Organic substance is degraded by microorganisms as the digested sludge of stable in properties and produces biogas, and biogas is stored For carbonization fuel in gas tank.

C, carbonization unit: described molding combustible feeds carbonization stove, use the produced natural pond of anaerobic fermentation unit In gas and carbonization product pyrolysis gas provide thermal source to make stove, material is gradually heated to 700 DEG C, time of staying 1h.Pyrolysis produces Gaseous material first pass around condensing unit cooling, condensable liquid therein is condensed out and obtains pyrolysis oil.After condensation cooling Be still the pyrolysis gas of gas after purifying (decoking, desulphurization and denitration), be stored in gas tank, as carbonization raw material.Row The solid refuse charcoal gone out is collected after carrying out quenching cooling, and the flue gas of discharge is passed through anaerobic fermentation unit and provides heat for fermentation.

D, the collection of product and process: product of the present invention includes metal, dregs, digested sludge, pyrolysis oil, rubbish charcoal.Its In, metal collection is sold;Dregs includes pretreatment unit dregs and carbonization unit dirt, fills after collection;Digested sludge Sell as fertilizer;Pyrolysis oil is sold as fuel oil or industrial chemicals;Rubbish charcoal goes out as solid fuel or reducing agent Sell;A pyrolysis gas part supplies pyrogenation and carbonization device as fuel gas, and a part is as production marketing, and rubbish per ton can produce flammable Gas 200Nm3, its composition and calorific value are as shown in table 2.

Table 2 combustible gas composition and calorific value

Embodiment 2

Using certain city's house refuse is raw material, becomes and is grouped into as shown in table 3.

Table 3 house refuse becomes to be grouped into (wt%)

A, rubbish pretreatment: according to composting characteristic by sorting, sieve, crush, the means such as molding obtain anaerobism and send out Ferment and carbonization raw material;

(1) house refuse storage: enter factory's rubbish in discharging platform pours dump pit into, and stop 6 days in hole, with guarantee It is sufficiently dehydrated, mixes, and after diafiltration, msw water content is less than 25%.The sewage separated is sent out through collecting feeding anaerobism Ferment unit, for anaerobic fermentation.

(2) sorting is broken: uses bag-breaking machine to sort after dehydration garbage bag breaking, is kitchen excess by refuse classification, can Combustion rubbish and metal, dregs, and respectively kitchen excess and combustiblerefuse are crushed.

Assorting room passes sequentially through magnetic sorting, vibrosieve sorting and rotary screen sorting;Shattering process breaker is 2-3 Level, broken particle diameter is 10mm-80mm;Combustiblerefuse includes the one or several in plastics, rubber, stationery, fabric and other material Kind.

(3) combustiblerefuse molding: by combustiblerefuse after pulverizing through garbage-molding equipment compression forming be pie, as dry Evaporating pyrolysis feed, its compression particle size range is 10-100mm.

B, anaerobic fermentation unit: described kitchen excess and described sewage mixed configuration form slurry are transported in fermentation tank, rubbish The flue gas that rubbish pyrolysis produces is passed through fermentation system, utilizes the heat in flue gas to keep fermentation temperature 45 DEG C to carry out anaerobic fermentation, sends out The ferment time of staying is 20 days, and Organic substance is degraded by microorganisms as the digested sludge of stable in properties and produces biogas, and biogas is stored For carbonization fuel in gas tank.

C, carbonization unit: described molding combustible feeds carbonization stove, use the produced natural pond of anaerobic fermentation unit In gas and carbonization product pyrolysis gas provide thermal source to make stove, material is gradually heated to 800 DEG C, time of staying 2h.Pyrolysis produces Gaseous material first pass around condensing unit cooling, condensable liquid therein is condensed out and obtains pyrolysis oil.After condensation cooling Be still the pyrolysis gas of gas after purifying (decoking, desulphurization and denitration), be stored in gas tank, as carbonization raw material.Row The solid refuse charcoal gone out is collected after carrying out quenching cooling, and the flue gas of discharge is passed through anaerobic fermentation unit and provides heat for fermentation.

D, the collection of product and process: product of the present invention includes metal, dregs, digested sludge, pyrolysis oil, rubbish charcoal.Its In, metal collection is sold;Dregs includes pretreatment unit dregs and carbonization unit dirt, fills after collection;Digested sludge Sell as fertilizer;Pyrolysis oil is sold as fuel oil or industrial chemicals;Rubbish charcoal goes out as solid fuel or reducing agent Sell;A pyrolysis gas part supplies pyrogenation and carbonization device as fuel gas, and a part is as production marketing, and rubbish per ton can produce flammable Gas 180Nm3, composition and calorific value are as shown in table 4.

Table 4 combustible gas composition and calorific value

In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be that machinery connects Connect, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings Condition understands above-mentioned term concrete meaning in the present invention.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be arbitrary Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the technology of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by personnel And combination.

Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (10)

1. one way of life garbage as resource integrated conduct method, it is characterised in that including:
Carry out house refuse sorting break process, in order to obtain rubbish from cooking and combustiblerefuse;
Described rubbish from cooking is carried out anaerobic fermentation process, in order to obtain biogas and residue;
Described combustiblerefuse is carried out carbonization process, in order to obtain flue gas, pyrolysis oil gas and residual solid;And
As fuel gas, described biogas is used for described carbonization process.
Domestic garbage resource integrated conduct method the most according to claim 1, it is characterised in that be institute by described flue gas State anaerobic fermentation and offer heat is provided.
Domestic garbage resource integrated conduct method the most according to claim 1 and 2, it is characterised in that farther include:
In advance described house refuse is carried out filtration process in material hole, in order to isolate percolate;
Described percolate is carried out described anaerobic fermentation process.
4. according to the domestic garbage resource integrated conduct method described in any one of claim 1-3, it is characterised in that further Including:
Carry out condensing and purified treatment by described pyrolysis oil gas, in order to respectively obtain pyrolysis oil and pyrolysis gas;
Described pyrolysis gas is returned as fuel gas and is used for the process of described carbonization,
Optionally, farther include: described residual solid is carried out sorting process, in order to obtain white carbon black and ash.
5. according to the domestic garbage resource integrated conduct method described in any one of claim 1-4, it is characterised in that by institute State before combustiblerefuse carries out carbonization process and farther include: be shaped described combustiblerefuse processing,
Optionally, the mean diameter of the combustiblerefuse after described forming processes is 10-100 millimeter.
6. according to the domestic garbage resource integrated conduct method described in any one of claim 1-5, it is characterised in that described in detest The temperature that aerobe fermentation processes is 35-45 degree Celsius, and the time is 15-20 days.
7. one way of life garbage as resource total system, it is characterised in that including:
Sorting breaker, described sorting breaker has house refuse entrance, rubbish from cooking outlet and combustiblerefuse outlet;
Anaerobic fermentation tank, described anaerobic fermentation tank has rubbish from cooking entrance, methane outlet and residual outlet, rubbish more than described kitchen Rubbish entrance is connected with the outlet of described rubbish from cooking;
Carbonization stove, described carbonization stove has fuel gas entrance, combustiblerefuse entrance, exhanst gas outlet, pyrolysis oil gas to go out Mouth and residual solid export, and described combustiblerefuse entrance is connected with the outlet of described combustiblerefuse;And
Described methane outlet is connected with the fuel gas entrance for described carbonization stove.
8. the domestic garbage resource total system stated according to claim 7, it is characterised in that described exhanst gas outlet and institute State anaerobic fermentation tank to be connected.
9. the domestic garbage resource total system stated according to claim 7 or 8, it is characterised in that farther include:
Material hole, described material hole has primary garbage inlet alive, percolate outlet and house refuse outlet, and described house refuse exports Being connected with described house refuse entrance, the outlet of described percolate is connected with anaerobic fermentation tank.
10. the domestic garbage resource total system stated according to any one of claim 7-9, it is characterised in that further Including:
Condensing unit, described condensing unit has pyrolysis oil gas entrance, pyrolysis oil outlet and pyrolysis gas outlet, described pyrolysis oil gas Entrance is connected with described pyrolysis oil gas vent;
Purifier, described purifier has pyrolysis gas entrance and pure pyrolysis gas outlet, and described pyrolysis gas entrance is with described Pyrolysis gas outlet is connected, and described pure pyrolysis gas outlet is connected with the fuel gas entrance of described carbonization stove,
Optionally, farther including: sorting unit, described sorting unit has residual solid entrance, white carbon black outlet and ash and separates Mouthful, described residual solid entrance is connected with the outlet of described residual solid,
Optionally, farther including: shaped device, described shaped device exports and described flammable rubbish with described combustiblerefuse respectively Rubbish entrance is connected.
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