CN102145343A - Integrated garbage treatment and utilization method for effectively controlling dioxin - Google Patents
Integrated garbage treatment and utilization method for effectively controlling dioxin Download PDFInfo
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- CN102145343A CN102145343A CN2011100737353A CN201110073735A CN102145343A CN 102145343 A CN102145343 A CN 102145343A CN 2011100737353 A CN2011100737353 A CN 2011100737353A CN 201110073735 A CN201110073735 A CN 201110073735A CN 102145343 A CN102145343 A CN 102145343A
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- 238000000034 method Methods 0.000 title claims abstract description 67
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000197 pyrolysis Methods 0.000 claims abstract description 115
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- 238000001035 drying Methods 0.000 claims abstract description 43
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- 239000011449 brick Substances 0.000 claims abstract description 21
- 238000004064 recycling Methods 0.000 claims abstract description 17
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000000567 combustion gas Substances 0.000 claims description 26
- 239000002912 waste gas Substances 0.000 claims description 20
- 239000002918 waste heat Substances 0.000 claims description 19
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses an integrated garbage treatment and utilization method for effectively controlling dioxin, which comprises a garbage sorting, drying and storing method, a garbage dry distillation, pyrolysis and gasification method, an integrated treatment and utilization method for garbage ash and combustible gas and an integrated treatment and utilization method for exhaust gas and waste water, belonging to the field of environmental protection. The method comprises how to effectively control the dioxin and solve the pollution problem of reducing waste water, exhaust gas, waste residue and the like in the garbage treatment process. The solution comprises the steps of sorting and drying the garbage, turning the garbage into renewable resources like combustible gas, tar and the like through integrated treatment of dry distillation, pyrolysis and gasification, comprehensively utilizing the waste residue and waste water for brick making and emitting the exhaust gas up to the standard after treatment. By adopting the technique for garbage treatment, the generation and damage of the dioxin can be effectively controlled, the emission of no waste water, no waste residue and no wastes can be achieved, and the better effect of complete harmlessness, reduction and recycling approximate to 100% can be realized.
Description
Technical field
The invention belongs to the garbage disposal in environmental protection field and utilize method, be specifically related to a kind of comprehensive garbage disposal of effective containment dioxin and utilize method.
Background technology
At present, domestic rubbish disposal both at home and abroad mainly contains methods such as sanitary landfills, system (heap) fertilizer, burning.China has about 85% to be landfill at present; Be burning about 10%; Be other processing modes such as fertile, the living producing firedamp gas of system (heap) about 5%.Though above variety of way respectively has advantage, but all there are some problems and shortcomings: 1, garbage loading embeading, though than landfill not and huddle be placed with improve, investment and operating cost are also low than burning, and cause that spontaneous combustion produces problems such as dioxin harm but existence is long-term and constantly increase land occupation, long-term pollution underground water and influence gases such as ambient air environment, generation alkanes; 2, waste incineration though have superiority than landfill subtracting to hold decrement and harmless treatment and account for aspect such as soil less, exists that investment is big, operating cost is high, be difficult to effectively contain problems such as dioxin, toxic emission is big, heat utilization is low, comprehensive utilization is poor; 3, system (heap) fertilizer waits other modes, though the organic matter in the rubbish is obtained to a certain degree utilization, but there is problems such as removing product quality is not high, the difficult acceptance in market, also has garbage disposal minimizing not high (generally about 50%), innoxious not thoroughly (harm such as waste gas, waste water, waste residue, waste plastics fail thoroughly to solve), the poor problems such as (general utilization are below 60%) of recycling.
Summary of the invention
The technical problem to be solved in the present invention is effectively to contain being difficult to of existing in the domestic rubbish disposal pollutions such as dioxin and waste water (comprise oozing in the garbage disposal drop liquid), waste residue, pernicious gas and the garbage disposal minimizing is not enough, recycling is relatively poor, innoxious problem such as not thorough, discloses a kind of comprehensive garbage disposal of effective containment dioxin and utilizes method.
The objective of the invention is to be achieved through the following technical solutions:
A kind of comprehensive garbage disposal of effective containment dioxin and utilize method comprises refuse classification, drying, storage method; Rubbish destructive distillation pyrolysis gasification method; Cinder, fuel gas integrated treatment and utilize method; Waste gas waste water integrated treatment and utilize method.
Described refuse classification, drying, storage method comprise and pour the house refuse that ships into chain-linked conveyer, successively rubbish are delivered to chain type conveyer belt, Bulky Waste sorting platform, rotary screen, tramp iron separator, drying drum, rubbish warehouse; Described Bulky Waste sorting platform is that the Bulky Waste sorting is done to enter separation system again after the break process in addition; Rubbish after the Bulky Waste sorting enters rotary screen, and screenings is sent to the interpolation raw material of doing comprehensive utilizations such as brickmaking with belt conveyor; Oversize enters the drying drum drying after the tramp iron separator deironing; After collecting, ironware thing under tramp iron separator removes send salvage station to handle and utilization again; Dried rubbish is sent into the rubbish warehouse through belt conveyor; The tail gas that described drying drum garbage drying is produced through pipeline deliver to emission-control equipment handle up to standard after the discharging; The thermal source of described drying drum comprises waste heat after the brickmaking from rubbish comprehensive utilization.
Described rubbish destructive distillation pyrolysis gasification method, comprise the rubbish of rubbish warehouse being grabbed in the rubbish destructive distillation pyrolysis gasifying device and handle that described rubbish destructive distillation pyrolysis gasifying device comprises feed arrangement, destructive distillation pyrolysis gasification furnace, waste gas recovering device and lime-ash treating apparatus with grab bucket; Described feed arrangement comprises feeding warehouse and the pusher oil cylinder that is connected as a single entity with feeding warehouse; Feed arrangement one end links to each other with the dryer section of destructive distillation pyrolysis gasification furnace; Described destructive distillation pyrolysis gasification furnace comprises top-down dryer section, retort section, pyrolytic gasification section; The dryer section upper end is provided with and compresses hydraulic cylinder and Hydraulic Station, and the lower end that compresses hydraulic cylinder links to each other with binder block; Dryer section and epimere escape pipe, retort section links to each other with hypomere escape pipe I; Pyrolytic gasification section middle and lower part is provided with automatic poker device, and the bottom is provided with draft furnace wind castor, and the bottom is provided with the lime-ash treating apparatus; Described lime-ash treating apparatus comprises ash-pan and removes slag bucket; Ash-pan links to each other with the ash-pan transmission device, and draft furnace wind castor links to each other with ventilation duct.
Described waste gas recovering device comprises epimere escape pipe and hypomere escape pipe I, and hypomere escape pipe I links to each other with cyclone dust collectors; The cyclone dust collectors upper end is provided with moushroom valve, and the cyclone dust collectors lower end links to each other with ash tube; Moushroom valve links to each other with total flashback tank I by hypomere escape pipe II; Total flashback tank I links to each other with the combustion gas endless tube; The epimere escape pipe links to each other with upper end combustion gas flashback tank; Combustion gas flashback tank in upper end links to each other with electrical tar precipitator; The electrical tar precipitator lower end is provided with the coke discharging oil pipe, and the electrical tar precipitator upper end is provided with emptying exhaust stack and corona electrode and outer containment vessel; Electrical tar precipitator links to each other with clean gas pipe after the decoking by stop valve, and the clean gas pipe links to each other with total flashback tank II, and the combustion gas endless tube links to each other with total flashback tank II, and links to each other with the combustion gas house steward by total flashback tank I; The combustion gas house steward links to each other with generating set; The waste heat offgas duct of tunnel brick-baking kiln links to each other with drying drum; The offgas duct of drying drum links to each other with emission-control equipment.
The internal diameter of described destructive distillation pyrolysis gasification furnace retort section is less than the internal diameter of dryer section, and the internal diameter of dryer section is less than the internal diameter of pyrolytic gasification section.
Be provided with waste heat recovery plant around the described destructive distillation pyrolysis gasification furnace pyrolytic gasification section, described waste heat recovery plant comprises the water jacket that is arranged on around the pyrolytic gasification section, and water jacket links to each other with water inlet endless tube, safety valve, steam lead etc.
Described rubbish destructive distillation pyrolytic gasification is handled, comprise and to enter the rubbish of rubbish warehouse after the drying with grabbing into feeding warehouse, rubbish is sent into the dryer section of destructive distillation pyrolysis gasification furnace with the pusher oil cylinder, rubbish is at first by the furnace wall radiant heat of destructive distillation pyrolysis gasification furnace and further dry from the high temperature hot gas of retort section rising, enter retort section after the further drying of rubbish, after entering retort section, the destructive distillation under anaerobic condition of organic matters such as the plastics in the rubbish; Described destructive distillation comprises that solid organic matters adds thermal decomposition under the secluding air condition, and the destructive distillation result generates fuel gas, steam, tar and carbide such as alkanes, carbon monoxide, and described destructive distillation is compared with burning, can effectively contain the generation of dioxin; This destructive distillation produces under the situation of effectively containing dioxin fuel gas, tar and steam are discharged by the epimere escape pipe, and fuel gas and tar are collected utilization after treatment; Inorganic matters such as formed carbide and dregs enter the pyrolytic gasification section after the destructive distillation, the carbide that enters the pyrolytic gasification section is at the further pyrolytic gasification of back that ignited by high temperature, it is more abundant that carbide enters the automatic poker device after-combustion, extremely to turning to dust and ashes, fall into ash-pan after compressing with compacted oil cylinder of inorganic matters such as dregs and binder block, under the drive of ash-pan transmission device, lime-ash is discharged the destructive distillation pyrolysis gasification furnace through removing slag bucket, and the raw material that the lime-ash of discharge is used for brickmaking or potting grain etc. fully utilizes; So far, the destructive distillation pyrolytic gasification of rubbish is all finished.
The described gas that comes out from the destructive distillation pyrolysis gasification furnace links to each other with electrical tar precipitator through the epimere escape pipe, hypomere escape pipe I links to each other with cyclone dust collectors, gas is through dedusting, except that tar, except that behind the steam, can obtain the fuel gas of high-quality, and the complete qualified discharge of gas that discharges by the emptying exhaust stack after treatment.
Described cinder, fuel gas integrated treatment and utilize method comprise cinder, fuel gas are carried out integrated treatment and resource utilization method; Described cinder comprises slag that the screenings of rotary screen and destructive distillation pyrolysis gasification furnace are discharged and the cyclone dust collectors dust under removing etc., these cinders, (about 30%) comprises that with batchings conducts such as comprising gangue, shale, mud the interpolation raw material of brickmaking or potting grain etc. carries out recycling by a certain percentage; Described fuel gas carries out integrated treatment and recycling, comprise that the fuel gas that will produce behind rubbish destructive distillation and the pyrolytic gasification comprises the integrated treatment of decoking wet goods, fuel gas after treatment is used to comprise generating, bakes bricks, burns comprehensive utilizations such as haydite, air feed, heat supply, burning boiler as reproducible new forms of energy; The described waste heat tail gas of baking bricks or burning haydite is connected to drying drum through pipeline and is used for garbage drying, realizes the circulation comprehensive utilization; Described burning haydite comprises that the building materials that burn energy-saving heat preserving are with haydite etc.; Described fuel gas is used for generating, comprise and be used for gas turbine power generation and steam turbine generating etc., the mode that this fuel gas that produces with rubbish self generates electricity as clean energy resource, compare with the direct burning electricity generation mode of the rubbish of need coal more than 20% that generally adopts both at home and abroad at present, the thermal efficiency and generating rate are higher, operating cost is lower, also more energy-conservation and environmental protection; Described air feed comprise with gas supply conduit and liquefaction air feed, and the compression back of purifying is as comprising multiple mode combustion gas such as car, ship, boiler; Described heat supply comprises heat supply heating and heat supply water etc.; Described burning boiler comprises being used to burn Industrial Boiler and normal domestic boiler etc.; Described integrated treatment and utilize lime-ash and the method for fuel gas not only can reduce the consumption of conventional energy resources such as comprising coal and resource, also can reduce noxious gas emissions such as comprising carbon dioxide, has the good result of energy-saving and emission-reduction.
Described waste gas waste water integrated treatment and utilize method comprises the final waste gas waste water integrated treatment of garbage disposal and brickmaking etc. and utilizes method; The waste gas of described garbage disposal mainly comprises the tail gas of discharging behind the drying drum garbage drying, is connected to the emission-control equipment that comprises spray column through pipeline and washs neutralization and smoke abatement and dust control processing; The cycling use of water of described spray column comprises puts into the alkaline water that lime or other modes form, and the acid tail gas of band enters spray column, through alkaline water washing neutralization, carries out qualified discharge after the smoke abatement and dust control simultaneously; The waste gas of described brickmaking, comprise equally through pipeline be connected to that spray column neutralizes and smoke abatement and dust control handle after qualified discharge.
Described waste water comprises the waste water that waste water and spray column produced that produces in the garbage disposal process, and factory's life enters septic tank with waste water and handles in addition; Described waste water integrated treatment and utilization, comprise waste water carried out biochemical circular treatment with pump suction treatment tank that the water of treated qualified discharge all comprises the additional water of brick field with the pump suction, reach waste water integrated treatment and utilization, realize wastewater zero discharge;
The mud that described wastewater treatment produces comprises the interpolation raw material as brickmaking, participate in brickmaking by a certain percentage, in the process of baking bricks, improve on the one hand self calorific value of fragment of brick, reaching sewage sludge harmlessness on the other hand again behind high temperature sintering handles, reach comprehensive garbage disposal and utilization, realize the zero-emission of garbage disposal discarded object.
Beneficial effect of the present invention:
1, can effectively contain the generation and the harm of dioxin
Primary composting is handled by the technology of the present invention, can effectively contain the generation and the harm (it is following that the dioxin discharge index can be controlled in 0.03ng/m3) of dioxin, can not only reach the discharge standard (standard of China's incinerator toxic emission dioxin is 1.0ng/ m3) of China, and can be better than most advanced world Japan and the discharge standard (0.10ng/m3 of European Union greatly,), this is the most outstanding beneficial effect of the present invention, also is that the present invention will make one of bright spot of major contribution for China and even world's environmental protection cause and human health.
Current, waste incineration and generating electricity technology both domestic and external, no matter be grate furnace, gas-controlled type boiler, CFBB etc., because the process of incineration treatment of garbage is an oxidation reaction, so, directly burn the primary composting that comprises plastics, unavoidably to produce a large amount of dioxin, though can control or reduce the discharging of dioxin by measures such as active carbon adsorption and bag-type dusts, if but poor management or misoperation is arranged slightly, the discharging that will exceed standard causes the serious consequence of dioxin contamination.Adopt the technology of the present invention disposal of refuse can effectively contain the generation and the harm of dioxin, need not just can reach or be better than most advanced world Japan and European Union's discharge standard, can reduce the risk of dioxin contamination greatly through active carbon adsorption and bag-type dust.Because dioxin is called as " the first under heaven poison ", and is extremely harmful to human health, thereby the direct burning electricity generation of primary composting often is subjected to the common people and resolutely opposes.
, innoxious thoroughly
Primary composting adopts the technology of the present invention to handle, can finish sterilization, sterilization, deodorizing, and can contain effectively that dioxin produces and harm, reach " no waste water, no waste residue " discharging, burn directly with primary composting that the dioxin generation is big, garbage loading embeading long-term pollution air is compared with underground water, innoxious more thorough.
, recycling rate height
Primary composting adopts the technology of the present invention to handle, and organic matter becomes fuel gas by the destructive distillation pyrolytic gasification and all effectively utilizes as new forms of energy; Inorganic matter and waste residue are as whole recyclings of interpolation raw material such as brickmaking, and its recycling rate has only about 50% to compare near 100% with recycling rates such as burning electricity generation, rubbish compostings, and its recycling rate improves greatly.
, minimizing is remarkable
Primary composting adopts the technology of the present invention to handle, and organic matter has become fuel gas and all collected utilization; Inorganic matter comprises that sieve sandy soil and lime-ash down all carries out recycling as the interpolation raw material of brickmaking etc., has reached " no waste water, no waste residue " to discharge, and the physical form of rubbish is all cleared up, and minimizing is near 100%.Can only decrement tens percent compare at most with burning etc. with present garbage loading embeading, minimizing is very remarkable.
Description of drawings
Fig. 1 is a process flow diagram of the present invention
Among the figure:1---chain-linked conveyer, 2---grab bucket, 3---feeding warehouse; 4---dryer section, 5---Hydraulic Station, 6---Bulky Waste sorting platform; 7---automatic poker device, 8---rotary screen, 9---tramp iron separator II; 10---the outer containment vessel of corona electrode, 11---electrical tar precipitator, 12---belt conveyor II; 13---drying drum, 14---the waste heat pipeline, 15---exhaust pipe; 16---belt conveyor III; 17---the pusher oil cylinder, 18---the chain type conveyer belt, 19---material pressing device; 20---retort section; 21---the pyrolytic gasification section, 22---moushroom valve, 23---tramp iron separator I; 24---corona electrode; 25---emptying exhaust stack I, 26---belt conveyor I, 27---stop valve; 28---the tunnel brick-baking kiln
29---emission-control equipment, 30---emptying exhaust stack II, 31---the rubbish warehouse, 32---waste heat recovery plant, 33---ventilation duct, 34---draft furnace wind castor, 35---the lime-ash treating apparatus, 36---the belt conveyor IV, 37---hypomere escape pipe I, 38---ash tube, 39---cyclone dust collectors, 40---hypomere escape pipe II, 41---the combustion gas house steward, 42---total flashback tank I, 43---the combustion gas endless tube, 44---upper end combustion gas flashback tank, 45---the epimere escape pipe, 46---the coke discharging oil pipe, 47---total flashback tank II, 48---the clean gas pipe, 49---generating set, 50---brick field brickmaking workshop, 51---treatment tank.
The specific embodiment
As shown in Figure 1, the inventive method comprises refuse classification, drying, storage method; Rubbish destructive distillation pyrolysis gasification method; Cinder, fuel gas integrated treatment and utilize method; Comprehensive utilization of waste gas waste water and processing method.
Described refuse classification, drying, storage method comprise and pour the house refuse that ships into chain-linked conveyer 1, and the rubbish of successively rubbish being delivered to after the chain type conveyer belt 18 that is connected, Bulky Waste sorting platform 6, the Bulky Waste sorting enters rotary screen 8; The described Bulky Waste that sub-elects is done to enter separation system again after the break process in addition; The oversize of described rotary screen 8 enters drying drum 13 by belt conveyor I 26 and carries out drying after tramp iron separator I 23 deironing; The screenings of described rotary screen 8 is sent to brick field brickmaking workshop 50 through belt conveyor II 12 and is made brickmaking interpolation raw material after tramp iron separator II 9 deironing; After collecting, ironware thing under described tramp iron separator I 23 and tramp iron separator II 9 remove send salvage station to handle and utilization again; Described drying drum 13 dried rubbish are sent into rubbish warehouse 31 through belt conveyor III 16 and are carried out the next procedure processing; The tail gas that described drying drum 13 garbage dryings are produced through exhaust pipe 15 deliver to emission-control equipment 29 handle up to standard after the discharging; The thermal source of described drying drum 13 is baked bricks from tunnel brick-baking kiln 28 after the waste heat gas that waste heat pipeline 14 is sent here.
Described rubbish destructive distillation pyrolysis gasification method comprises with grab bucket 2 rubbish in the rubbish warehouse 31 being grabbed in the rubbish destructive distillation pyrolysis gasifying device and handles, and accomplishes that the rubbish on the same day handled the same day; Described rubbish destructive distillation pyrolysis gasifying device comprises feed arrangement, destructive distillation pyrolysis gasification furnace, waste gas recovering device and lime-ash treating apparatus; Described feed arrangement comprises feeding warehouse 3 and the pusher oil cylinder 17 that is connected with feeding warehouse 3; Feed arrangement one end links to each other with the dryer section 4 of destructive distillation pyrolysis gasification furnace; Described destructive distillation pyrolysis gasification furnace comprises top-down dryer section 4, retort section 20, pyrolytic gasification section 21; Dryer section 4 upper ends are provided with and comprise and compress material pressing device 19 and the Hydraulic Station 5 that hydraulic cylinder and binder block are connected as a single entity; Dryer section 4 and epimere escape pipe 45, retort section 20 links to each other with hypomere escape pipe I 37; Pyrolytic gasification section 21 bottoms are provided with lime-ash treating apparatus 35; Described lime-ash treating apparatus 35 comprises ash-pan, slag bucket, transmission device, the deslagging device that links together; Lime-ash treating apparatus 35 tops are provided with draft furnace wind castor 34, and draft furnace wind castor 34 links to each other with ventilation duct 33.
Described waste gas recovering device comprises epimere escape pipe 45 and hypomere escape pipe I 37, and hypomere escape pipe I 37 links to each other with the cyclone dust collectors 39 that the upper end is provided with moushroom valve 22; The cyclone dust collectors lower end links to each other with ash tube 38; Cyclone dust collectors upper end moushroom valve 22 links to each other with total flashback tank I 42 by hypomere escape pipe II 40; Total flashback tank I 42 links to each other with combustion gas endless tube 43; Epimere escape pipe 45 links to each other with upper end combustion gas flashback tank 44; Combustion gas flashback tank 44 in upper end links to each other with electrical tar precipitator 11; Electrical tar precipitator 11 lower ends are provided with coke discharging oil pipe 46, and the electrical tar precipitator upper end is provided with the outer containment vessel 10 of emptying exhaust stack I 25 and corona electrode 24 and corona electrode; Electrical tar precipitator 11 links to each other with clean gas pipe 48 after the decoking by stop valve 27, and clean gas pipe 48 links to each other with total flashback tank II 47; Total flashback tank II 47 links to each other with combustion gas endless tube 43, and combustion gas endless tube 43 links to each other with combustion gas house steward 41 by total flashback tank I 42, and combustion gas house steward 41 links to each other with generating set 49.
The internal diameter of described destructive distillation pyrolysis gasification furnace retort section 5 is less than the internal diameter of dryer section 4, and the internal diameter of dryer section 4 is less than the internal diameter of pyrolytic gasification section 21.
Be provided with around the described destructive distillation pyrolysis gasification furnace pyrolytic gasification section 21 and comprise the waste heat recovery plant 32 that can connect water inlet pipe, described waste heat recovery plant 32 comprises the water jacket that is arranged on around the pyrolytic gasification section 21, water jacket links to each other with water inlet endless tube, safety valve, steam lead etc., water jacket adds water generates steam, and to be used to control furnace temperature unlikely too high, to avoid the generation of body of heater damage and nitrogen oxide, temperature generally is controlled at more than 850 ℃ in the stove; The middle and lower part of described pyrolytic gasification section 21 is provided with automatic poker device 7, and described automatic poker device 7 comprises three layers of fire grate of upper, middle and lower, the gap of described three layers of fire grate and between the upper and lower apart from the upper strata greater than the middle level, the middle level is greater than lower floor; Described poking fire automatically is in garbage carbonized thing pyrolytic gasification or the combustion process, when volume burning be varied down to a certain degree and width less than the fire grate gap after, automatically drop to and continue pyrolytic gasification or burning on lower floor's fire grate, to to descend the also after-burning of one deck again be ashes to dropping to, this device setting that comprises that garbage carbonized thing etc. drops layer by layer automatically in the pyrolytic gasification process reaches the purpose that pokes fire automatically; It is more sufficient that described automatic poker device can play the oxygen supply of pyrolytic gasification section, burning is effect more fully, the required air that burns is blasted through draft furnace wind castor 34 by the ventilation duct 33 of air blast by furnace bottom, this ingenious setting that can play the grate furnace effect that pokes fire automatically, its combustion efficiency is more much better than the grate furnace that generally uses at present, has tangible innovation and breakthrough.
Described rubbish destructive distillation pyrolytic gasification is handled, comprise the rubbish that enters rubbish warehouse 31 after the drying is grabbed into feeding warehouse 3 with grab bucket 2, rubbish is sent into the dryer section 4 of destructive distillation pyrolysis gasification furnace with pusher oil cylinder 17, rubbish is at first by the furnace wall radiant heat of destructive distillation pyrolysis gasification furnace and further dry from the high temperature hot gas of retort section 20 risings, enter retort section 20 after the further drying of rubbish, after entering retort section 20, produce organic matters such as plastics destructive distillation under anaerobic condition of dioxin in the rubbish; Described destructive distillation comprises that solid organic matters adds thermal decomposition under the secluding air condition, and the destructive distillation result generates fuel gas, steam, tar and carbide such as alkanes, carbon monoxide; This method for destructive distillation can effectively be contained the generation of dioxin; Fuel gas, tar and the steam that destructive distillation produces is discharged by epimere escape pipe 45, and fuel gas and tar are collected utilization after treatment; Inorganic matters such as formed carbide and dregs enter pyrolytic gasification section 21 after the destructive distillation, the carbide that enters pyrolytic gasification section 21 has not contained the material that plastics etc. produce dioxin, after by high temperature pyrolysis and gasification more than 850 ℃, enter the further fully burning of carbide in the automatic poker device 7, extremely to turning to dust and ashes, fall into the ash-pan of deslagging device 35 after being compressed by material pressing device 19 with inorganic matters such as dregs, under the drive of ash-pan transmission device, lime-ash is discharged the destructive distillation pyrolysis gasification furnace through removing slag bucket, the slag of discharging is delivered to the interpolation raw material that brick field brickmaking workshop 50 is used for brickmaking through belt conveyor IV 36, so far, the destructive distillation pyrolytic gasification of rubbish is all finished; The described rubbish destructive distillation pyrolytic gasification course of work is the 24 hours every days of running continuously, blowing out when only limiting to annual scheduled overhaul or fault; Fault monitoring equipment is installed on the feed arrangement, operating personnel are monitored by screen or are visual and can observe and control charging rate that simultaneously, the furnace wall is provided with fire exploring hole, operating personnel can observe stove internal combustion situation at any time, just can stop charging at any time or reduce charging rate in case break down.
The gas that described destructive distillation pyrolysis gasification furnace comes out links to each other with electrical tar precipitator 11 through epimere escape pipe 45, hypomere escape pipe I 37 links to each other with cyclone dust collectors 39, the gas of last hypomere respectively through dedusting, remove tar, remove steam after, can obtain the fuel gas of high-quality, after treatment the complete qualified discharge of gas that discharges by emptying exhaust stack 25.
Described cinder, fuel gas integrated treatment and utilize method comprise cinder and fuel gas are carried out integrated treatment and recycling; Described cinder comprises slag that the screenings of rotary screen 8 and destructive distillation pyrolysis gasification furnace are discharged and cyclone dust collectors 39 dust under removing etc., these cinders, (about 30%) adds raw material as the brickmaking of brickmaking factory 50 and carries out integrated treatment and recycling with comprising batchings such as gangue, shale, mud by a certain percentage; Described brickmaking comprises by tunnel brick-baking kiln 28 carries out sintering, and the waste heat tail gas of baking bricks is transported to drying drum 13 through waste heat pipeline 14 and is used for garbage drying, realizes integrated treatment and recycling; Described fuel gas carries out integrated treatment and recycling, comprises that the fuel gas that will produce behind the rubbish destructive distillation pyrolytic gasification removes tar through electrical tar precipitator 11 and handles; Fuel gas after treatment is used to comprise comprehensive utilizations such as power generator group 49 generatings as reproducible new forms of energy; The fuel gas that adopts rubbish self to produce generates electricity as clean energy resource, compares with the waste incineration and generating electricity of need coal more than 20% that generally adopts both at home and abroad at present, and the thermal efficiency and generating rate are higher, and operating cost is lower, more energy-conservation and environmental protection; This integrated treatment and utilize the method for lime-ash, fuel gas not only can reduce the consumption of conventional energy resources such as comprising coal and resource, also can reduce noxious gas emissions such as comprising carbon dioxide, has the good result of energy-saving and emission-reduction.
Described waste gas waste water integrated treatment and utilize method comprises garbage disposal and the final waste gas waste water integrated treatment of baking bricks and utilizes method; The waste gas of described garbage disposal mainly comprises the tail gas of discharging behind drying drum 13 garbage dryings, being transported to emission-control equipment 29 through exhaust pipe 15 handles, described emission-control equipment 29 tops are provided with emptying exhaust stack II 30, described exhaust-gas treatment comprises with spray column washs neutralization, carries out smoke abatement and dust control simultaneously and handles; The cycling use of water of described spray column comprises puts into the alkaline water that lime or other modes form, and the acid tail gas of band enters spray column, and through alkaline water washing neutralization, it is up to standard after emptying exhaust stack II 30 dischargings to carry out smoke abatement and dust control simultaneously; Described waste gas of baking bricks comprises qualified discharge after pipeline is connected to emission-control equipment and handles equally.
Described waste water comprises the waste water that waste water and spray column produced that produces in the garbage disposal process; Described waste water integrated treatment and utilization, comprise waste water carried out biochemical circular treatment with pump suction treatment tank 51 that the water of treated qualified discharge all replenishes the brickmaking water with pump suction brick field brickmaking workshop 50, reach waste water integrated treatment and utilization, realize wastewater zero discharge;
Mud integrated treatment and utilization that described wastewater treatment produces, comprise the interpolation raw material of mud as brickmaking, participate in brickmaking by a certain percentage, in the process of baking bricks, improve on the one hand self calorific value of fragment of brick, again mud is reached harmless treatment behind high temperature sintering on the other hand, reach comprehensive garbage disposal and utilization, realize the zero-emission of garbage disposal discarded object.
Claims (5)
1. effectively contain the comprehensive garbage disposal of dioxin and utilize method for one kind, comprise refuse classification, drying, storage method; Rubbish destructive distillation pyrolysis gasification method; Cinder, fuel gas integrated treatment and utilize method; Waste gas waste water integrated treatment and utilize method.
2. the comprehensive garbage disposal of a kind of effective containment dioxin according to claim 1 and utilize method, it is characterized in that: described refuse classification, dry, storage method, comprise and pour house refuse into chain-linked conveyer (1), deliver to chain type conveyer belt (18) successively, Bulky Waste sorting platform (6), rotary screen (8) carries out sorting, through the oversize after the sorting by tramp iron separator I(23) after the deironing, through belt conveyor I(26) send into drying drum (13) and carry out drying, dried rubbish belt conveyor III(16) send into rubbish warehouse (31) and store; The screenings of described rotary screen (8) is through tramp iron separator II(9) after the deironing, through belt conveyor II(12) send to brick field brickmaking workshop (50) and do brickmaking and add raw material; Described tramp iron separator I(23) and tramp iron separator II(9) remove and to send salvage station to handle after ironware thing is down collected and fully utilize; The tail gas that described drying drum (13) produces is delivered to emission-control equipment (29) through exhaust pipe (15) and is handled back up to standard and discharge; The thermal source of described drying drum (13) comprises the waste heat gas of sending comprehensive utilization from tunnel brick-baking kiln (28) through waste heat pipeline (14) here.
3. the comprehensive garbage disposal of a kind of effective containment dioxin according to claim 1 and utilize method, it is characterized in that: described rubbish destructive distillation pyrolysis gasification method comprises with grab bucket (2) rubbish in the rubbish warehouse (31) is grabbed the method for carrying out integrated treatment in the rubbish destructive distillation pyrolysis gasifying device; Described rubbish destructive distillation pyrolysis gasifying device comprises feed arrangement, destructive distillation pyrolysis gasification furnace, waste gas recovering device and lime-ash treating apparatus; Described feed arrangement comprises feeding warehouse (3) and the pusher oil cylinder (17) that is connected with feeding warehouse (3); Feed arrangement one end links to each other with the dryer section (4) of destructive distillation pyrolysis gasification furnace; Described destructive distillation pyrolysis gasification furnace comprises top-down dryer section (4), retort section (20), pyrolytic gasification section (21); Described dryer section (4) upper end is provided with and comprises and compress material pressing device (19) and the Hydraulic Station (5) that hydraulic cylinder and binder block are connected as a single entity; Described dryer section (4) and epimere escape pipe (45), retort section (20) and hypomere escape pipe I(37) link to each other; The middle and lower part of described pyrolytic gasification section (21) is provided with and comprises automatic poker device (7), and the bottom is provided with lime-ash treating apparatus (35); The internal diameter of described retort section (20) is less than the internal diameter of dryer section (4), and the internal diameter of dryer section (4) is less than the internal diameter of pyrolytic gasification section (21); Be provided with around the described pyrolytic gasification section (21) and comprise the waste heat recovery plant (32) that can connect water inlet pipe, described waste heat recovery plant (32) comprises and is arranged on pyrolytic gasification section (21) water jacket on every side that water jacket links to each other with water inlet endless tube, safety valve, steam lead etc.; Described automatic poker device (7) comprises three layers of fire grate of upper, middle and lower, the gap of described three layers of fire grate and be wider than the middle level apart from the upper strata between the upper and lower, and lower floor is wider than in the middle level; Air in described pyrolytic gasification section (21) and the automatic poker device (7) comprises the air that is blasted through draft furnace wind castor (34) by the ventilation duct (33) of air blast by furnace bottom; Described waste gas recovering device comprises epimere escape pipe (45) and hypomere escape pipe I (37); Described hypomere escape pipe I (37) links to each other with the cyclone dust collectors (39) that the upper end is provided with moushroom valve (22); Described cyclone dust collectors lower end links to each other with ash tube (38); Described cyclone dust collectors upper end moushroom valves (22) are by hypomere escape pipe II(40) link to each other with total flashback tank I (42); Total flashback tank I (42) links to each other with combustion gas endless tube (43); Epimere escape pipe (45) links to each other with upper end combustion gas flashback tank (44); Upper end combustion gas flashback tank (44) links to each other with electrical tar precipitator (11); Described electrical tar precipitator (11) lower end is provided with coke discharging oil pipe (46), and the electrical tar precipitator upper end is provided with the outer containment vessel (10) of emptying exhaust stack I (25) and corona electrode (24) and corona electrode; Described electrical tar precipitator (11) links to each other with clean gas pipe (48) after the decoking by stop valve (27), clean gas pipe (48) and total flashback tank II(47) link to each other; Total flashback tank II(47) link to each other with combustion gas endless tube (43), combustion gas endless tube (43) links to each other with combustion gas house steward (41) by total flashback tank I (42), and combustion gas house steward (41) links to each other with tunnel brick-baking kiln (28); Described lime-ash treating apparatus (35) comprises ash-pan, slag bucket, transmission device, the deslagging device that links together; Described lime-ash treating apparatus (35) top is provided with draft furnace wind castor (34), and draft furnace wind castor (34) links to each other with ventilation duct (33); Described rubbish destructive distillation pyrolysis gasification method, comprise the rubbish that enters rubbish warehouse (31) after the drying is grabbed into feeding warehouse (3) with grab bucket (2), rubbish is sent into the dryer section (4) of destructive distillation pyrolysis gasification furnace with pusher oil cylinder (17), rubbish is comprised that at first the furnace wall radiant heat of destructive distillation pyrolysis gasification furnace and the high temperature hot gas that rises from retort section (20) are further dry, enter retort section (20) after the further drying of rubbish, after entering retort section (20), the organic matters such as plastics that produce dioxin in the rubbish are below 300 ℃ and destructive distillation under anaerobic condition; Described destructive distillation result generates and comprises fuel gas, steam, tar and carbide such as alkanes, carbon monoxide; Described method for destructive distillation can effectively be contained the generation of dioxin; Fuel gas, tar and the steam that described destructive distillation produces is discharged by epimere escape pipe (45), and fuel gas and tar are collected utilization after treatment; Inorganic matters such as formed carbide and dregs enter pyrolytic gasification section (21) after the destructive distillation, the carbide that enters pyrolytic gasification section (21) has not contained the material that plastics etc. produce dioxin, after by high temperature pyrolysis and gasification more than 850 ℃, enter the further fully burning of carbide in the automatic poker device (7), extremely to turning to dust and ashes, fall into the ash-pan of deslagging device (35) after being compressed by material pressing device (19) with inorganic matters such as dregs, under the drive of ash-pan transmission device, lime-ash is discharged the destructive distillation pyrolysis gasification furnace through removing slag bucket, and the slag of discharge is delivered to the interpolation raw material comprehensive utilization that brick field brickmaking workshop (50) is used for brickmaking through belt conveyor IV (36); Described destructive distillation pyrolytic gasification process is the 24 hours every days of running continuously; The gas that described destructive distillation pyrolysis gasification furnace comes out links to each other with electrical tar precipitator (11) through epimere escape pipe (45), hypomere escape pipe I(37) links to each other with cyclone dust collectors (39), the gas of last hypomere respectively through dedusting, remove tar, remove steam after, can obtain the fuel gas of high-quality, after treatment by emptying exhaust stack I(25) discharging the complete qualified discharge of gas.
4. the comprehensive garbage disposal of a kind of effective containment dioxin according to claim 1 and utilize method, it is characterized in that: described cinder, fuel gas integrated treatment and utilize method comprise the method for cinder, fuel gas being carried out integrated treatment and recycling; Described cinder comprises slag that the screenings of rotary screen (8) and destructive distillation pyrolysis gasification furnace are discharged and cyclone dust collectors (39) dust under removing etc., these cinders, (about 30%) carries out comprehensive utilization of resources with comprising the interpolation raw material of batchings such as gangue, shale, mud as brickmaking by a certain percentage; Described fuel gas carries out integrated treatment and resource utilization method, after comprising that the fuel gas that will produce behind the rubbish destructive distillation pyrolytic gasification removes tar and handles by electrical tar precipitator (11), be transported to through combustion gas house steward (41) and comprise that generating set (49) is used to comprise generating as reproducible new forms of energy or as comprehensive utilizations such as car, combustion gas peculiar to vessel; Described generating comprises with gas turbine power generation or steam turbine generating etc.; Described waste heat tail gas of baking bricks is transported to drying drum (13) through waste heat pipeline (14) and is used for garbage drying, realizes integrated treatment and recycling.
5. the comprehensive garbage disposal of a kind of effective containment dioxin according to claim 1 and utilize method, it is characterized in that: described waste gas waste water integrated treatment and utilize method, comprise the tail gas of discharging, be transported to emission-control equipment (29) through exhaust pipe (15) and handle behind drying drum (13) garbage drying; Described emission-control equipment (29) top is provided with emptying exhaust stack II(30), described exhaust-gas treatment comprises with spray column washs neutralization, carries out smoke abatement and dust control simultaneously and handles; The cycling use of water of described spray column comprises puts into the alkaline water that lime or other modes form, and the acid tail gas of band enters spray column, and through alkaline water washing neutralization, it is up to standard after emptying exhaust stack II (30) discharging to carry out smoke abatement and dust control simultaneously; Described waste gas of baking bricks comprises qualified discharge after pipeline is connected to emission-control equipment and handles equally; Described waste water comprises the waste water that waste water and spray column produced that produces in the garbage disposal process; Described waste water integrated treatment and utilization, comprise waste water carried out biochemical circular treatment with pump suction treatment tank (51) that the water of treated qualified discharge all comprises that with the pump suction brick field brickmaking workshop (50) replenishes the brickmaking water, reach waste water integrated treatment and utilization, realize wastewater zero discharge; The mud that described wastewater treatment produces participates in brickmaking by a certain percentage as the interpolation raw material that comprises brickmaking, realizes the comprehensive utilization and the zero-emission of garbage disposal discarded object.
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| CN102430560A (en) * | 2011-10-12 | 2012-05-02 | 陈小刚 | Process for comprehensively treating municipal domestic wastes |
| CN102816578A (en) * | 2012-07-16 | 2012-12-12 | 严大春 | Method for integrative sorting and destructive distillation pyrolysis and gasification of household refuse without discharge of dioxin |
| CN103320168A (en) * | 2012-08-10 | 2013-09-25 | 襄阳品冠恒大环境工程有限公司 | Power generating technology using purified garbage pyrolysis gas |
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| CN104140851B (en) * | 2014-08-12 | 2017-10-31 | 余式正 | It is a kind of Wu bioxin and the vertical negative-pressure rubbish dry-distillation incineration stove of non-exhaust emission |
| CN104456571A (en) * | 2014-11-02 | 2015-03-25 | 史惠元 | Method and device for generating electricity through household garbage |
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| CN109028071A (en) * | 2018-05-24 | 2018-12-18 | 陕西志清宇泰环保设备有限公司 | A kind of energy conservation and environmental protection pyrolytic equipment for life refuse |
| CN109701997A (en) * | 2019-02-13 | 2019-05-03 | 安徽中泰创展环境科技股份有限公司 | The domestic garbage treating system and method that a kind of collaboration of solar energy utilizes |
| CN110016366A (en) * | 2019-03-08 | 2019-07-16 | 上海电力设计院有限公司 | Domestic garbage gasification methanation electricity generation system |
| CN113305129A (en) * | 2021-05-17 | 2021-08-27 | 上海温锌科技有限公司 | Garbage solid waste separation and recovery treatment method |
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Effective date of registration: 20131224 Address after: 100045, three Li River, Beijing, Haidian District, 13, 501, 502 Patentee after: Zhengren Environmental Protection Technology Co., Ltd. Address before: Sichuan Jiangyang mountain city of Luzhou Province Ping Road No. 30 Building No. 15 North of Patentee before: Zhang Daming Patentee before: Qu Yulin Patentee before: Yu Shizheng Patentee before: Li Weinan Patentee before: Chen Lihui Patentee before: Zhang Cheng |
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Effective date of registration: 20151030 Address after: 610017 Sichuan province Chengdu City sub Road No. 333 2 Building 1 unit 19 Building No. 1901 Patentee after: Sichuan Zheng Ren environmental Polytron Technologies Inc Address before: 100045, three Li River, Beijing, Haidian District, 13, 501, 502 Patentee before: Zhengren Environmental Protection Technology Co., Ltd. |
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Effective date of registration: 20170116 Address after: 100045 Beijing, Haidian District, No. three Li River, No. 501, 13 Patentee after: Environmental protection technology group Limited by Share Ltd Address before: 610017 Sichuan province Chengdu City sub Road No. 333 2 Building 1 unit 19 Building No. 1901 Patentee before: Sichuan Zheng Ren environmental Polytron Technologies Inc |
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Granted publication date: 20130403 Termination date: 20200325 |
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