CN105880264A - RDF system and method for household refuse squeezing property-classified treatment and resource utilization - Google Patents

RDF system and method for household refuse squeezing property-classified treatment and resource utilization Download PDF

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Publication number
CN105880264A
CN105880264A CN201610416641.4A CN201610416641A CN105880264A CN 105880264 A CN105880264 A CN 105880264A CN 201610416641 A CN201610416641 A CN 201610416641A CN 105880264 A CN105880264 A CN 105880264A
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China
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rdf
anaerobic fermentation
rubbish
outlet
domestic garbage
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CN201610416641.4A
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CN105880264B (en
Inventor
袁艺东
陈建湘
杨友强
方勇
邵烈勇
余海彪
范永清
张卓
张�杰
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Shezhen Leo King Environment Protection Co Ltd
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Shezhen Leo King Environment Protection Co Ltd
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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

Abstract

The invention discloses an RDF system and method for household refuse squeezing property-classified treatment and resource utilization. The method comprises the steps of 1, crushing; 2, squeezing; 3, dry basis treatment; 4, wet basis treatment. According to an adopted incineration power generation process, dry basis obtained in the step 3 and light impurities obtained in the step 4 are conveyed to a tooth roller type crushing device to be crushed and loosened, and the tooth interval of the tooth roller type crushing device is 60-90 mm; loosened materials are conveyed to a screening device to remove inorganic impurities, materials with diameters larger than 50 mm on a screen are homogenized through a homogenizing device, magnetic metal is removed through a magnetic separator, non-magnetic metal is removed through an eddy current magnetic separator, and high-density matter is removed through an air separator; materials discharged from the air separator are raw materials of RDF, and the materials are crushed by a crusher into specific size, so that the final RDF product is obtained.

Description

Domestic garbage compression-classification dual treatment recycling RDF system and method
Technical field
The present invention relates to Prediction for Solid Waste Treatment Technology, specifically for the recycling treatment of house refuse.
Background technology
Coal and oil produce as society and the significant energy source of life, people to coal and Oil is formed and relies on, but coal and oil are all non-renewable energy resources.And along with the development of society, city The quickening of change process, urban population increases, and living standards of the people improve, and the yield of domestic waste is not Increasing, the composition of house refuse is the most increasingly sophisticated disconnectedly, to the harm of the pollution of environment and people's health day by day Seriously, also limit the development in city.
House refuse carries out direct burning can give off the substantial amounts of dusty gas aggravation harm to environment.Now The daily household electricity of people is mostly by thermal power generation, and the consumption to the energy is self-evident.In order to solve the energy Problem, the garbage derivatived fuel (Refuse Derived Fuel is called for short RDF) being prepared as by house refuse, Have calorific value height, flameholding, be prone to transport, easily stored, secondary pollution is low and dioxin-like chemical row The good characteristics such as the lowest.
But at present house refuse prepare the technical method majority of RDF sieved by Mechanical Crushing, physics, aerobic House refuse is carried out variation classification by mummification etc., adds the gained RDF such as combustion adjuvant, and the loaded down with trivial details workshop of its technique accounts for Ground is big.The technology of the present invention discloses a kind of efficient, high-grade RDF fuel system of the simple low flying dust of technique And equipment.
This technology is without classifying house refuse variation, without aerobic mummification and interpolation combustion adjuvant.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that Yi Zhongsheng Rubbish compression-classification dual treatment recycling RDF system and method alive, it is dry by house refuse preparation Clean, the high-grade RDF fuel system of low flying dust and equipment.Solve conventional spam burning disposal flying dust to produce The problem that amount is many and flying dust processing cost is high, the RDF calorific value obtained by this technology is high, produces after burning Flying dust is few.So that domestic garbage burning electricity generation processes more environmentally-friendly and economical, and this RDF can replace For other biological matter fuel, can be used for the fuel of boiler, cement kiln etc...
In order to achieve the above object, the present invention is achieved by the following technical solutions:
Domestic garbage compression-classification dual treatment recycling RDF method, it is characterised in that comprise as follows Step:
(1) broken;By Domestic garbage crushing to particle diameter less than or equal to 200mm;
(2) squeezing;Rubbish after crushing is delivered to pressing device extruding and is separated into butt and wet basis;
(3) butt processes;Butt squeezing obtained performs burning electricity generation technique;
(4) wet basis processes;Wet basis squeezing obtained is sequentially sent to light impurity segregation apparatus and separates with heavy seeds Device carries out separating the light impurity removed in wet basis and heavy seeds;Isolated light impurity performs burning electricity generation work Skill;Isolated heavy seeds carries out filling or brickmaking;The wet basis slurry isolating light impurity and heavy seeds performs Anaerobic fermentation produces natural pond technique;
Described burning electricity generation technique is that the butt of step (3) and the light impurity of step (4) are delivered to tooth rod Formula breaker carries out broken loose process, and the backlash of toothed roller type breaker is 60~90mm;After loose Material be delivered to screening plant and remove inorganic impurity, oversize more than the material of 50mm immediately by homogenizing device Remove magnetic metal uniformly through magnetic separator, gone by vortex flow magnetic separator removal nonmagnetic metal and winnower Except high-density matter;The discharging of winnower is exactly the raw material of RDF, and these raw materials by crusher in crushing are again Specific particle diameter i.e. obtains RDF product finally.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Executing mode: the screening plant in described burning electricity generation technique is removed in inorganic impurity, described inorganic impurity is bag The particle diameter containing sand, the glass little granule less than 50mm.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Executing mode: in described burning electricity generation technique, the siftage of screening plant is less than material and the separator of 50mm Heavy substance discharging carries out burning or landfill process;The light materials discharging opening of described winnower is the raw material of RDF.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Execute mode: described anaerobic fermentation produces natural pond technique and comprises:
S5: hydrolysis acidification;The wet basis slurry isolating light impurity and heavy seeds is sent into hydrolization and acidification tank carry out Acidification hydrolization;
S6: anaerobic fermentation;Through pumping installations, the slurry after hydrolysis acidification is delivered to anaerobic fermentation tank detest Aerobe fermentation;
S7: form anaerobic fermentation methane processes;The biogas produced by anaerobic fermentation is delivered to biological desulphurization dress through pipeline Put the removal carrying out hydrogen sulfide;The biogas of removal hydrogen sulfide is delivered to gas storage holder through pipeline and keeps in;Gas storage A cabinet road in parallel connects torch, carries out the burning disposal of unnecessary biogas;Gas storage holder another road in parallel is delivered to natural pond Diarrhea due to disorder of QI device.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Execute mode: the methane utilization device of described step S7 comprises for carrying out marsh gas power generation networking after marsh gas purifying Methane purifying device and for being used for motor vehicle fuel by being fabricated to CNG after methane purification or be incorporated to natural gas tube The Marsh gas purifying device of net.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Execute mode: after described step S6, also comprise anaerobic fermentation Digestive system treatment process;Described anaerobic fermentation digests Liquid treatment process comprises the steps of:
S10: deliver to after the Digestive system after anaerobic fermentation is added pretreatment seasoning liquid be dehydrated device dehydration, obtain Biogas residue and biogas slurry;
S20: biogas residue dehydration obtained is delivered to organic fertilizer device and is produced fertilizer;The biogas slurry that dehydration is obtained Deliver to sewage treatment plant carry out process and realize qualified discharge and seasoning liquid reuse.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Execute mode: described step (4) is also included as light impurity processing means and adds the step of seasoning liquid, via gently The solid content of the wet basis slurry after impurity treatment device and the process of heavy seeds processing means controls 10~35%;Institute State heavy seeds and comprise gravel;The amount of storage of described hydrolization and acidification tank is the slurry volume of 3~5 days;Hydrolysis acidification In tank, strike-off device in band stirring and bottom, and bottom gravel is through the Swirling flow sand-removing of transport pump to hydrolysis acidification tank top And girt-water separation device removal gravel heavy substance;The volume of described anaerobic fermentation tank be amount of storage be 20~30 days Slurry volume, in anaerobic fermentation tank band stirring and bottom sand removing device;Also comprise before described step (1) The step of collection rubbish and rubbish hang the step of transhipment;The step of described collection rubbish is house refuse to be passed through Receive fortune vehicle collective conveyance, to treatment plant, receipts fortune vehicle, rubbish is unloaded into rubbish warehouse;Described rubbish hangs and turns The step of fortune is that the rubbish in rubbish warehouse is hung hydraulic grab device by house refuse by the rubbish that rubbish hangs Next process is sent in crawl.
One as Domestic garbage compression-classification dual treatment recycling RDF method of the present invention is the most real Execute mode: before described step (1), also comprise the Pre-sorting step for picking out bulk impurity, described pre- Sorting step is artificial separation or installs controlled mechanical hand on sorting line or use in dump pit Rubbish hangs hydraulic grab and separates;
The step of magnetic separation is also comprised between described step (1) and step (3);The step of described magnetic separation is logical Cross concentration equipment and remove the magnetic material in house refuse;Described concentration equipment is tramp iron separator;Described tramp iron separator For permanent magnetism self-unloading type deferrization device.
The invention also discloses Domestic garbage compression-classification dual treatment recycling RDF system, it comprises Adopt work with the aforedescribed process the garbage storing set gradually hole, rubbish hang, Pre-sorting device, breaker, Concentration equipment, pressing device, light impurity segregation apparatus, heavy seeds segregation apparatus;
The slurry outlet of described heavy seeds segregation apparatus is connected to anaerobic fermentation and produces natural pond system, and described heavy seeds divides Gravel outlet from device is connected to landfill or brick making system by conveyer belt;The butt of described pressing device goes out The light impurity outlet of mouth and light impurity segregation apparatus is connected to burning electricity generation system by transmission belt;
Described burning electricity generation comprises breaker, the screening plant set gradually;The oversize of screening plant goes out Mouth connection is sequentially connected with homogenizing device, concentration equipment, eddy current separation device and pneumatic separation device;Pneumatic separation device Light materials outlet connect crushing mechanism;The heavy substance outlet of pneumatic separation device and the siftage outlet of screening plant It is connected to burn or landfill system.
Further: described anaerobic fermentation produces that natural pond system comprises the hydrolization and acidification tank that sets gradually, anaerobism is sent out Ferment tank, bio-desulfurization device and gas storage holder;A described gas storage holder road in parallel connects biogas torch;Gas storage holder is also Join another road and connect methane purifying device and Marsh gas purifying device;The methane outlet of described anaerobic fermentation tank connects Described bio-desulfurization device;The Digestive system outlet of described anaerobic fermentation tank connects dehydration device;Described dehydration dress The biogas slurry outlet put connects sewage treatment plant, and the biogas residue outlet of described dehydration device connects organic fertilizer device; The wet basis outlet of described pressing device is connected to light impurity segregation apparatus;Described methane purifying device connects biogas TRT;Described Marsh gas purifying device connects gas distributing system.
The medicine have the advantages that
The invention discloses a kind of efficient, high-grade RDF fuel system of the simple low flying dust of technique and method. This technology is without classifying house refuse variation, without aerobic mummification and interpolation combustion adjuvant.Often solve The problem that rule incineration treatment of garbage flying dust yield is many and flying dust processing cost is high, the RDF obtained by this technology Calorific value is high, and the flying dust produced after burning is few.So that domestic garbage burning electricity generation processes more environmentally-friendly and warp Ji, and this RDF can substitute other biological matter fuel, can be used for the fuel of boiler, cement kiln etc...
Accompanying drawing explanation
Fig. 1 is the system structure theory diagram of a kind of detailed description of the invention of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment describes the specific embodiment of the invention:
As it can be seen, it illustrates the detailed description of the invention of the present invention, house refuse disclosed by the invention is squeezed Classification dual treatment recycling RDF method, it is characterised in that comprise the steps of:
(1) broken;By Domestic garbage crushing to particle diameter less than or equal to 200mm;
(2) squeezing;Rubbish after crushing is delivered to pressing device extruding and is separated into butt and wet basis;
(3) butt processes;Butt squeezing obtained performs burning electricity generation technique;
(4) wet basis processes;Wet basis squeezing obtained is sequentially sent to light impurity segregation apparatus and separates with heavy seeds Device carries out separating the light impurity removed in wet basis and heavy seeds;Isolated light impurity performs burning electricity generation work Skill;Isolated heavy seeds carries out filling or brickmaking;The wet basis slurry isolating light impurity and heavy seeds performs Anaerobic fermentation produces natural pond technique;
Described burning electricity generation technique is that the butt of step (3) and the light impurity of step (4) are delivered to tooth rod Formula breaker carries out broken loose process, and the backlash of toothed roller type breaker is 60~90mm;After loose Material be delivered to screening plant and remove inorganic impurity, oversize more than the material of 50mm immediately by homogenizing device Remove magnetic metal uniformly through magnetic separator, gone by vortex flow magnetic separator removal nonmagnetic metal and winnower Except high-density matter;The discharging of winnower is exactly the raw material of RDF, and these raw materials by crusher in crushing are again Specific particle diameter i.e. obtains RDF product finally.
Preferred: the screening plant in described burning electricity generation technique is removed in inorganic impurity, described inorganic impurity For comprise sand, glass particle diameter less than the little granule of 50mm.
Preferred: in described burning electricity generation technique, the siftage of screening plant is less than the material of 50mm and divides Machine heavy substance discharging is selected to carry out burning or landfill process;The light materials discharging opening of described winnower is RDF's Raw material.
Preferred: described anaerobic fermentation produces natural pond technique and comprises:
S5: hydrolysis acidification;The wet basis slurry isolating light impurity and heavy seeds is sent into hydrolization and acidification tank carry out Acidification hydrolization;
S6: anaerobic fermentation;Through pumping installations, the slurry after hydrolysis acidification is delivered to anaerobic fermentation tank detest Aerobe fermentation;
S7: form anaerobic fermentation methane processes;The biogas produced by anaerobic fermentation is delivered to biological desulphurization dress through pipeline Put the removal carrying out hydrogen sulfide;The biogas of removal hydrogen sulfide is delivered to gas storage holder through pipeline and keeps in;Gas storage A cabinet road in parallel connects torch, carries out the burning disposal of unnecessary biogas;Gas storage holder another road in parallel is delivered to natural pond Diarrhea due to disorder of QI device.The present embodiment produces natural pond technique by increasing anaerobic fermentation so that the squeezing point of whole house refuse Process after class is more thorough;House refuse is achieved adequately and reasonably recycling.
Preferred: the methane utilization device of described step S7 comprises for carrying out marsh gas power generation after marsh gas purifying The methane purifying device of networking and for being used for motor vehicle fuel by being fabricated to CNG after methane purification or be incorporated to natural The Marsh gas purifying device of gas pipe network.The present embodiment makes biogas obtain very fully and the deep exploitation of environmental protection.
Preferred: after described step S6, also to comprise anaerobic fermentation Digestive system treatment process;Described anaerobic fermentation Digestive system treatment process comprises the steps of:
S10: deliver to after the Digestive system after anaerobic fermentation is added pretreatment seasoning liquid be dehydrated device dehydration, obtain Biogas residue and biogas slurry;
S20: biogas residue dehydration obtained is delivered to organic fertilizer device and is produced fertilizer;The biogas slurry that dehydration is obtained Deliver to sewage treatment plant carry out process and realize qualified discharge and seasoning liquid reuse.The present embodiment makes anaerobic fermentation After Digestive system obtained very fully and the deep exploitation of environmental protection.
Preferred: described step (4) to be also included as light impurity processing means and adds the step of seasoning liquid, warp The solid content of the wet basis slurry after being processed by light impurity processing means and heavy seeds processing means control 10~ 35%;Described heavy seeds comprises gravel;The present embodiment makes the process of light impurity processing means and subsequent technique suitable Profit is carried out;Slurry is purified, is more suitable for follow-up process for producing biogas.Depositing of described hydrolization and acidification tank Reserves are the slurry volume of 3~5 days;In hydrolization and acidification tank, strike-off device in band stirring and bottom, bottom gravel warp Transport pump removes gravel heavy substance to Swirling flow sand-removing and the girt-water separation device of hydrolysis acidification tank top;Described detest The volume of aerobe fermentation tank be amount of storage be the slurry volume of 20~30 days, in anaerobic fermentation tank band stirring and bottom Sand removing device;Volume is limited by the present embodiment with natural law, and it mainly performs place according to technical scheme Refuse collection efficiency and transport efficacy;Can reasonably instruct the execution of concrete scheme;Wide accommodation.Institute State the most also to comprise before step (1) and collect the step of rubbish and rubbish hangs the step of transhipment;Described collection rubbish Step is that by rubbish, house refuse is unloaded into rubbish to treatment plant, receipts fortune vehicle through receiving fortune vehicle collective conveyance Rubbish warehouse;It is that the rubbish that the rubbish in rubbish warehouse is hung by rubbish is hung liquid that described rubbish hangs the step of transhipment House refuse is captured and is sent to next process by pressure grab mechanisms.The transhipment structure of the present embodiment can be received continuously Collection transhipment;Rubbish hangs hydraulic grab device and is also equipped with picking out the function of the bulk impurity preventing blocking.
Preferred: before described step (1), also to comprise the Pre-sorting step for picking out bulk impurity, institute State Pre-sorting step to be artificial separation or controlled mechanical hand is installed on sorting line or at dump pit Middle rubbish hangs hydraulic grab and separates;
The step of magnetic separation is also comprised between described step (1) and step (3);The step of described magnetic separation is logical Cross concentration equipment and remove the magnetic material in house refuse;Described concentration equipment is tramp iron separator;Described tramp iron separator For permanent magnetism self-unloading type deferrization device.Disclosed in the present embodiment, magnetic separation step is capable of the recovery of metal and prevents Metal causes the dual-use function that subsequent technique blocks.
Above-mentioned detailed description of the invention is with Fig. 1 as operation principle, and its techniqueflow is as it can be seen, residential quarter etc. House refuse is transported to this technical finesse factory by garbage collecting and transferring vehicle, and rubbish is discharged into a large-scale storage hole, uses Rubbish hangs hydraulic grab device and carries out feed to Pre-sorting device.
The purpose of Pre-sorting of the present invention is to separate the bulk impurity of those possible occluding devices.Typical Pre-sorting It is artificial separation, or controlled mechanical hand is installed on sorting line.A kind of mode is additionally also had to separate greatly Block impurity, i.e. hangs hydraulic grab with rubbish in dump pit and separates.
As it can be seen, rubbish is delivered to breaker by conveyer after Pre-sorting, by Domestic garbage crushing To≤200mm.Rubbish after Po Sui is carried out the recovery of ironware by magnetic separator.
As it can be seen, go the rubbish of tramp iron separator to be delivered to press apparatus, press apparatus rubbish extruding is separated For wet basis and butt.
In the present invention, wet basis weighs density because there being partially flexible impurity such as plastic bag etc. in extrusion process with some Impurity such as gravel etc. hold concurrently miscellaneous wherein, use light materials segregation apparatus and heavy substance segregation apparatus that it is separated Remove, promote wet basis slurry purity, obtain a kind of can efficient anaerobic fermentation produce natural pond slurry.
In the present invention, butt is delivered to tooth rod formula breaker and carries out broken loose process, and its backlash is 60-90mm.Butt after loose is delivered to screening plant and removes inorganic impurity, the such as particle diameter such as sand, glass Little granule less than 50mm.Oversize more than 50mm material immediately by homogenizing device uniformly through magnetic separator (except magnetic metal), vortex flow magnetic separation (unless magnetic metal) and winnower (removal high-density matter).
As it can be seen, the discharging of winnower is exactly the raw material of RDF, these raw materials by crusher in crushing are again Specific particle diameter has just become final RDF product.
The invention also discloses Domestic garbage compression-classification dual treatment recycling RDF system, it comprises Adopt work with the aforedescribed process the garbage storing set gradually hole, rubbish hang, Pre-sorting device, breaker, Concentration equipment, pressing device, light impurity segregation apparatus, heavy seeds segregation apparatus;
The slurry outlet of described heavy seeds segregation apparatus is connected to anaerobic fermentation and produces natural pond system, and described heavy seeds divides Gravel outlet from device is connected to landfill or brick making system by conveyer belt;The butt of described pressing device goes out The light impurity outlet of mouth and light impurity segregation apparatus is connected to burning electricity generation system by transmission belt;
Described burning electricity generation comprises breaker, the screening plant set gradually;The oversize of screening plant goes out Mouth connection is sequentially connected with homogenizing device, concentration equipment, eddy current separation device and pneumatic separation device;Pneumatic separation device Light materials outlet connect crushing mechanism;The heavy substance outlet of pneumatic separation device and the siftage outlet of screening plant It is connected to burn or landfill system.
Further: described anaerobic fermentation produces that natural pond system comprises the hydrolization and acidification tank that sets gradually, anaerobism is sent out Ferment tank, bio-desulfurization device and gas storage holder;A described gas storage holder road in parallel connects biogas torch;Gas storage holder is also Join another road and connect methane purifying device and Marsh gas purifying device;The methane outlet of described anaerobic fermentation tank connects Described bio-desulfurization device;The Digestive system outlet of described anaerobic fermentation tank connects dehydration device;Described dehydration dress The biogas slurry outlet put connects sewage treatment plant, and the biogas residue outlet of described dehydration device connects organic fertilizer device; The wet basis outlet of described pressing device is connected to light impurity segregation apparatus;Described methane purifying device connects biogas TRT;Described Marsh gas purifying device connects gas distributing system.
Above in conjunction with accompanying drawing, the preferred embodiment for the present invention is explained in detail, but on the invention is not restricted to State embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to without departing from this Making a variety of changes on the premise of invention objective, these changes relate to well-known to those skilled in the art relevant Technology, these both fall within the protection domain of patent of the present invention.
Many other can be made without departing from the spirit and scope of the present invention to change and remodeling.Should be appreciated that this Invention is not limited to specific embodiment, and the scope of the present invention is defined by the following claims.

Claims (10)

1. Domestic garbage compression-classification dual treatment recycling RDF method, it is characterised in that comprise as Lower step:
(1) broken;By Domestic garbage crushing to particle diameter less than or equal to 200mm;
(2) squeezing;Rubbish after crushing is delivered to pressing device extruding and is separated into butt and wet basis;
(3) butt processes;Butt squeezing obtained performs burning electricity generation technique;
(4) wet basis processes;Wet basis squeezing obtained is sequentially sent to light impurity segregation apparatus and separates with heavy seeds Device carries out separating the light impurity removed in wet basis and heavy seeds;Isolated light impurity performs burning electricity generation work Skill;Isolated heavy seeds carries out filling or brickmaking;The wet basis slurry isolating light impurity and heavy seeds performs Anaerobic fermentation produces natural pond technique;
Described burning electricity generation technique is that the butt of step (3) and the light impurity of step (4) are delivered to tooth rod Formula breaker carries out broken loose process, and the backlash of toothed roller type breaker is 60~90mm;After loose Material be delivered to screening plant and remove inorganic impurity, oversize more than the material of 50mm immediately by homogenizing device Remove magnetic metal uniformly through magnetic separator, gone by vortex flow magnetic separator removal nonmagnetic metal and winnower Except high-density matter;The discharging of winnower is exactly the raw material of RDF, and these raw materials by crusher in crushing are again Specific particle diameter i.e. obtains RDF product finally.
2. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 1, It is characterized in that: the screening plant in described burning electricity generation technique is removed in inorganic impurity, described inorganic impurity For comprise sand, glass particle diameter less than the little granule of 50mm.
3. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 1, It is characterized in that: in described burning electricity generation technique, the siftage of screening plant is less than the material of 50mm and divides Machine heavy substance discharging is selected to carry out burning or landfill process;The light materials discharging opening of described winnower is RDF's Raw material.
4. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 1, It is characterized in that: described anaerobic fermentation produces natural pond technique and comprises:
S5: hydrolysis acidification;The wet basis slurry isolating light impurity and heavy seeds is sent into hydrolization and acidification tank carry out Acidification hydrolization;
S6: anaerobic fermentation;Through pumping installations, the slurry after hydrolysis acidification is delivered to anaerobic fermentation tank detest Aerobe fermentation;
S7: form anaerobic fermentation methane processes;The biogas produced by anaerobic fermentation is delivered to biological desulphurization dress through pipeline Put the removal carrying out hydrogen sulfide;The biogas of removal hydrogen sulfide is delivered to gas storage holder through pipeline and keeps in;Gas storage A cabinet road in parallel connects torch, carries out the burning disposal of unnecessary biogas;Gas storage holder another road in parallel is delivered to natural pond Diarrhea due to disorder of QI device.
5. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 4, It is characterized in that, the methane utilization device of described step S7 comprises for carrying out marsh gas power generation after marsh gas purifying The methane purifying device of networking and for being used for motor vehicle fuel by being fabricated to CNG after methane purification or be incorporated to natural The Marsh gas purifying device of gas pipe network.
6. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 4, It is characterized in that, after described step S6, also comprise anaerobic fermentation Digestive system treatment process;Described anaerobic fermentation Digestive system treatment process comprises the steps of:
S10: deliver to after the Digestive system after anaerobic fermentation is added pretreatment seasoning liquid be dehydrated device dehydration, obtain Biogas residue and biogas slurry;
S20: biogas residue dehydration obtained is delivered to organic fertilizer device and is produced fertilizer;The biogas slurry that dehydration is obtained Deliver to sewage treatment plant carry out process and realize qualified discharge and seasoning liquid reuse.
7. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 4, It is characterized in that, described step (4) is also included as light impurity processing means and adds the step of seasoning liquid, warp The solid content of the wet basis slurry after being processed by light impurity processing means and heavy seeds processing means control 10~ 35%;Described heavy seeds comprises gravel;The amount of storage of described hydrolization and acidification tank is the slurry volume of 3~5 days; In hydrolization and acidification tank, strike-off device in band stirring and bottom, bottom gravel through transport pump to hydrolysis acidification tank top Swirling flow sand-removing and girt-water separation device remove gravel heavy substance;The volume of described anaerobic fermentation tank is that amount of storage is The slurry volume of 20~30 days, band stirring and bottom sand removing device in anaerobic fermentation tank;Described step (1) it Before also comprise and collect the step of rubbish and rubbish hangs the step of transhipment;The step of described collection rubbish will be for living Rubbish is unloaded into rubbish warehouse through receiving fortune vehicle collective conveyance to treatment plant, receipts fortune vehicle by rubbish;Described It is by the rubbish that rubbish hangs, the rubbish in rubbish warehouse to be hung hydraulic grab device incite somebody to action that rubbish hangs the step of transhipment House refuse captures and is sent to next process.
8. Domestic garbage compression-classification dual treatment recycling RDF method as claimed in claim 4, It is characterized in that, before described step (1), also comprise the Pre-sorting step for picking out bulk impurity, institute State Pre-sorting step to be artificial separation or controlled mechanical hand is installed on sorting line or at dump pit Middle rubbish hangs hydraulic grab and separates;
The step of magnetic separation is also comprised between described step (1) and step (3);The step of described magnetic separation is logical Cross concentration equipment and remove the magnetic material in house refuse;Described concentration equipment is tramp iron separator;Described tramp iron separator For permanent magnetism self-unloading type deferrization device.
9. Domestic garbage compression-classification dual treatment recycling RDF system, it is characterised in that comprise and adopt The garbage storing set gradually worked by the method as described in as arbitrary in claim 1~8 is cheated, rubbish hangs, divides in advance Screening device, breaker, concentration equipment, pressing device, light impurity segregation apparatus, heavy seeds segregation apparatus;
The slurry outlet of described heavy seeds segregation apparatus is connected to anaerobic fermentation and produces natural pond system, and described heavy seeds divides Gravel outlet from device is connected to landfill or brick making system by conveyer belt;The butt of described pressing device goes out The light impurity outlet of mouth and light impurity segregation apparatus is connected to burning electricity generation system by transmission belt;
Described burning electricity generation comprises breaker, the screening plant set gradually;The oversize of screening plant goes out Mouth connection is sequentially connected with homogenizing device, concentration equipment, eddy current separation device and pneumatic separation device;Pneumatic separation device Light materials outlet connect crushing mechanism;The heavy substance outlet of pneumatic separation device and the siftage outlet of screening plant It is connected to burn or landfill system.
10. Domestic garbage compression-classification dual treatment recycling RDF system as claimed in claim 9, It is characterized in that, described anaerobic fermentation produce natural pond system comprise set gradually hydrolization and acidification tank, anaerobic fermentation tank, Bio-desulfurization device and gas storage holder;A described gas storage holder road in parallel connects biogas torch;Gas storage holder in parallel another Road connects methane purifying device and Marsh gas purifying device;The methane outlet of described anaerobic fermentation tank connects described life Thing desulfurizer;The Digestive system outlet of described anaerobic fermentation tank connects dehydration device;The natural pond of described dehydration device Liquid outlet connects sewage treatment plant, and the biogas residue outlet of described dehydration device connects organic fertilizer device;Described pressure The wet basis outlet squeezing device is connected to light impurity segregation apparatus;Described methane purifying device connects marsh gas power generation dress Put;Described Marsh gas purifying device connects gas distributing system.
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