CN106493155A - A kind of domestic garbage treating system and method - Google Patents
A kind of domestic garbage treating system and method Download PDFInfo
- Publication number
- CN106493155A CN106493155A CN201611138850.3A CN201611138850A CN106493155A CN 106493155 A CN106493155 A CN 106493155A CN 201611138850 A CN201611138850 A CN 201611138850A CN 106493155 A CN106493155 A CN 106493155A
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- Prior art keywords
- gas
- house refuse
- flue gas
- revolving bed
- temperature flue
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 24
- 238000000197 pyrolysis Methods 0.000 claims abstract description 94
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000003546 flue gas Substances 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims abstract description 47
- 238000002844 melting Methods 0.000 claims abstract description 45
- 230000008018 melting Effects 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000002893 slag Substances 0.000 claims abstract description 23
- 239000002918 waste heat Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000010791 quenching Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 4
- 230000005855 radiation Effects 0.000 claims description 18
- 230000001172 regenerating effect Effects 0.000 claims description 17
- 238000007885 magnetic separation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003518 caustics Substances 0.000 claims description 11
- 239000004615 ingredient Substances 0.000 claims description 10
- 239000003610 charcoal Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000003141 lower extremity Anatomy 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/30—Other processes in rotary ovens or retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of domestic garbage treating system and method.The system includes material pit, feeding feed arrangement, revolving bed pyrolysis oven, pyrolysis oil air cooling device, melting reactor, Quench groove, waste heat boiler；House refuse raw material is sent in feeding feed arrangement by material pit by grab bucket；The charging aperture of revolving bed pyrolysis oven is connected with the discharging opening of feeding feed arrangement, and revolving bed pyrolysis oven is ring packing structure, including infrared heating zones and gas heating area；The pyrolysis oil gas entrance of pyrolysis oil air cooling device is connected with the pyrolysis oil gas vent of revolving bed pyrolysis oven；The carbonaceous residues entrance of melting reactor is connected with the carbonaceous residues outlet of revolving bed pyrolysis oven；The liquid slag entrance of Quench groove is connected with the liquid slag outlet of melting reactor；The high-temperature flue gas entry of waste heat boiler is connected with the high-temperature flue gas outlet of melting reactor.The system of the present invention is easy to operate, processing procedure clean energy-saving, and the thermal efficiency is high, and economic benefit is obvious.
Description
Technical field
The present invention relates to field of domestic garbage treatment, and in particular to a kind of processing system of house refuse and method.
Background technology
In the garbage incineration technology of traditional cities, two English and the governing problem of heavy metal pollution of very severe are faced with.
The secondary pollution (flue gas, flying dust) of burning process generation how is dealt carefully with, is the ultimate challenge that traditional waste incineration faces.
The sewage obtained after the filter of traditional life rubbish heap is referred to as percolate, and itself COD and BOD index is high, and processing cost is high, often
Rule gimmick is sprayed in incinerator, is gasificated into water vapour and is taken away substantial amounts of heat.
In recent years, gasification of refuse melts new incineration technology, can by the gasification of organic component when 45 DEG C～700 DEG C and
The melting formula burning of more than 1300 DEG C inorganic ash contents and coke combines, and therefore gradually receives the extensive pass of international coverage
Note.
Prior art discloses domestic waste gasified melting system.House refuse is sent under hydraulic pusher effect
The pyrolysis passage entered in gasification and melting is pyrolyzed, and thermal decomposition product is entered and further reacted in high-temperature reactor.Produce after reaction
Gaseous product sequentially pass through water scrubber, fine purifiation tower and absorbent charcoal adsorber.But, in rubbish, moisture is higher, directly
Sending into heat up in gasified melting system needs to absorb substantial amounts of heat, and system energy consumption is larger, needs to be equipped with phase according to garbage treatment quantity
The melting furnace that answers, increases single furnace volume, improves investment cost.Directly to cooling high-temperature fume by the way of washing,
A large amount of waste heats are not utilized, and a large amount of dust of generation also enters water scrubber together, and after washing, dust is entered in recirculated water, increase dirty
Water process difficulty.Containing substantial amounts of heavy metal and nitrogen amounts of sulphur contaminants in flue gas, intractability is larger, and operating cost is high.
Content of the invention
It is an object of the invention to provide a kind of process house refuse using revolving bed pyrolysis oven and melting reactor combination
System, the system is easy to operate, processing procedure clean energy-saving, and the thermal efficiency is high.
The invention discloses a kind of domestic garbage treating system, including material pit, feeding feed arrangement, revolving bed pyrolysis
Stove, pyrolysis oil air cooling device, melting reactor, Quench groove, waste heat boiler；
The material pit is used for stacking house refuse raw material；
The house refuse raw material is sent in the feeding feed arrangement by the material pit by grab bucket；
The revolving bed pyrolysis oven has charging aperture, pyrolysis oil gas vent, carbonaceous residues outlet；The charging aperture with described
The discharging opening connection of feeding feed arrangement；
The revolving bed pyrolysis oven be ring packing structure, including be provided with infrared radiation heating pipe infrared heating zones and
It is provided with the gas heating area of regenerative gas radiant tube；
The pyrolysis oil air cooling device has pyrolysis oil gas entrance, the pyrolysis oil gas entrance and the revolving bed pyrolysis oven
Pyrolysis oil gas vent connection；
The melting reactor has carbonaceous residues entrance, high-temperature flue gas outlet, liquid slag outlet；The carbonaceous residues enter
Mouth is connected by feed auger with the carbonaceous residues outlet of the revolving bed pyrolysis oven；
The Quench groove has liquid slag entrance, and the liquid slag entrance is connected with the liquid slag outlet of the melting reactor
Connect；
The waste heat boiler has high-temperature flue gas entry, the high-temperature flue gas of the high-temperature flue gas entry and the melting reactor
Outlet connection.
In above-mentioned system, also include heat regenerator, the heat regenerator is used for receiving by the waste heat pot
Air in the low-temperature flue gas that stove is sent into, the low-temperature flue gas and the heat regenerator carries out heat exchange and obtains cooled flue gas,
The cooled flue gas are sequentially sent to deduster, denitration desulfurizer, absorbent charcoal adsorber, chimney emission device.
In above-mentioned system, also include caustic wash tower, the caustic wash tower has condensing gas entrance, the condensing gas entrance with described
The condensing gas outlet connection of pyrolysis oil air cooling device.
Preferably, material-homogenating device, the discharge end of the material-homogenating device and institute are provided with the charging aperture of the revolving bed pyrolysis oven
State infrared heating zones to communicate；Stirrer is provided with per two between the infrared radiation heating pipe, for stirring the life rubbish
Rubbish raw material, promotes the volatilization of moisture.
Preferably, heat accumulating type vortex burner is provided with the melting reactor, provide heat for the melting reactor
Amount；The lower end of the feeding feed arrangement is provided with material metering device, for measuring the transporting velocity of the house refuse raw material.
The invention also discloses a kind of method that utilization said system processes house refuse, including step：
A, house refuse raw material stack 3～7 days afterwards in the material pit, are transported to the feeding by the grab bucket and enter
In material device；
B, the house refuse raw material are sent in the revolving bed pyrolysis oven, described even via the feeding feed arrangement
It is evenly arranged on drapery panel in the presence of glassware, and passes sequentially through the infrared heating zones, gas heating area, the life rubbish
Moisture and organic volatile matter in rubbish raw material is separated successively, obtains carbonaceous residues and pyrolysis oil gas；
C, the carbonaceous residues are sent into via the feed auger in the burner hearth of the melting reactor, wherein the storage
In the presence of hot type vortex burner, the carbonaceous residues liquefy to form liquid slag and high-temperature flue gas；
D, the liquid slag is sent into and formed in the Quench groove solid glass body, and will the high-temperature flue gas send into described
In waste heat boiler.
In the method for above-mentioned process house refuse, before the step A, also include the pre-treatment step of house refuse：
Screening：House refuse is transported in the rotary screen that aperture is 20*80, dregs is sifted out；And/or, sorting is thick
Broken：The sorted coarse crushing of oversize in the rotary screen, obtains the material of particle diameter≤150；Pre- magnetic separation：To above-mentioned material
Pre- magnetic separation is carried out, ferrous metal therein is reclaimed；And/or, two-stage crushing：Material through pre- magnetic separation is crushed to particle diameter ＜ 20
㎜；And/or, smart magnetic separation：Smart magnetic separation is carried out through the material of two-stage crushing, small-sized ferrous metal therein is reclaimed.
In the method for above-mentioned process house refuse, in the step B, the rotating speed of the revolving bed pyrolysis oven is 10～
45min/r；House refuse raw thickness on the drapery panel is 20～50；Infra-red radiation in the infrared heating zones adds
Heat pipe is 50～100 with the vertical range of the house refuse ingredient upper surface, and radiated infrared optical wavelength is 1～30 μm；Turn over
Glassware lower limb is 5～10 with the vertical range of the cloth plate surface；Regenerative gas spoke in the gas heating area
The vertical range that pipe is penetrated with the house refuse ingredient upper surface is 50～100, and the temperature of regenerative gas radiant tube is 800
～1100 DEG C.By the pyrolysis oil pneumatic transmission enter the pyrolysis oil air cooling device, caustic wash tower carry out condensing, remove sour gas it
Afterwards, send back in the regenerative gas radiant tube and burn, the flue gas after burning is sent in the chimney emission device and discharged.
In the method for above-mentioned process house refuse, in the step C, the carbonaceous residues account for the percentage of house refuse raw material
Than for 25wt%；The fire box temperature of the melting reactor is 1300～1500 DEG C.
In the method for above-mentioned process house refuse, in the D steps, in the waste heat boiler, the high-temperature flue gas temperature
Degree is reduced to 400～550 DEG C from 1200～1400 DEG C, obtains low-temperature flue gas；The low-temperature flue gas are sent into the heat accumulating type to change
Exchanged heat with air in hot device, the low-temperature flue gas temperature is reduced to 200 DEG C of ＜, the air themperature liter by 400～550 DEG C
A height of 300～400 DEG C, and control the time≤3s of the heat transfer process.
The present invention obtains more pure water using infrared radiation heating, can not only be used for system water recycling, also may be used
It is directly discharged in municipal wastewater pipe network, reduces sewage disposal expense.The system of the present invention is easy to operate, and stable equipment operation can
Lean on.Processing procedure clean energy-saving, non-pollutant discharge.The whole system thermal efficiency is high, and operating cost is low, and economic benefit is obvious.
Description of the drawings
Fig. 1 is domestic garbage treating system schematic diagram in the present invention.
Fig. 2 embodiment of the present invention processes the method flow schematic diagram of house refuse using the system shown in Fig. 1.
Reference in accompanying drawing is as follows：
1st, material pit；2nd, feeding feed arrangement；3rd, revolving bed pyrolysis oven；4th, melting reactor；5th, Quench groove；6th, waste heat pot
Stove；7th, heat regenerator；8th, deduster；9th, denitration desulfurizer；10th, absorbent charcoal adsorber；11st, chimney emission device；
12nd, pyrolysis oil air cooling device；13rd, caustic wash tower.
Specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in more details, so as to energy
The advantage of the solution of the present invention and its various aspects is enough more fully understood.However, specific embodiments described below and reality
It is only descriptive purpose to apply example, rather than limitation of the present invention.
As shown in figure 1, the schematic diagram of the domestic garbage treating system provided for the present invention.The system include material pit 1, on
Material feed arrangement 2, revolving bed pyrolysis oven 3, melting reactor 4, Quench groove 5, waste heat boiler 6, heat regenerator 7, deduster
8th, denitration desulfurizer 9, absorbent charcoal adsorber 10, chimney emission device 11, pyrolysis oil air cooling device 12, caustic wash tower 13.
Material pit 1 is used for stacking house refuse raw material, and house refuse raw material therein can be transported to feeding by grab bucket and enter
In material device 2.
Feeding feed arrangement 2 is provided with sealing device, and rotation sent into by the house refuse raw material for will be transported by material pit 1
In bed pyrolysis oven 3, with charging aperture, discharging opening.Its lower end is provided with material metering device, for measuring the defeated of house refuse raw material
Send speed.
Revolving bed pyrolysis oven 3 be ring packing structure, burner hearth be internally provided with distribution device, heater and stirring dress
Put.The feed inlet end of revolving bed pyrolysis oven 3 is provided with material-homogenating device, house refuse raw material can be evenly arranged in revolving bed pyrolysis
On the drapery panel of stove 3.
Revolving bed pyrolysis oven 3 includes infrared heating zones, gas heating area.Wherein, the discharging of infrared heating zones and material-homogenating device
End communicates, and is provided with 2～4 infrared radiation heating pipes, and infrared radiation heating pipe is arranged on the top of drapery panel, per two
Stirrer is provided between infrared radiation heating pipe, for stirring house refuse raw material, promotes the volatilization of moisture.Infrared in last root
Many regenerative gas radiant tubes are provided between the discharging opening of radiation heating tube to revolving bed pyrolysis oven 3, on drapery panel
House refuse raw material is further heated.In the present invention, the not heating of limit infrared radiation transmission heating tube and regenerative gas radiant tube
Mode and quantity.
Revolving bed pyrolysis oven 3 is used for carrying out pyrolysis processing to life garbage raw material, and carbonaceous residues and pyrolysis oil gas is obtained.
Which has charging aperture, pyrolysis oil gas vent, carbonaceous residues outlet.Wherein, charging aperture is connected with the discharging opening of feeding feed arrangement 2
Connect, be pyrolyzed the top that oil gas vent is arranged on revolving bed pyrolysis oven 3.
Melting reactor 4 be used for by carbonaceous residues liquefaction obtain liquid slag and high-temperature flue gas, its have carbonaceous residues entrance,
High-temperature flue gas outlet, liquid slag outlet, wherein, the carbonaceous residues of carbonaceous residues entrance and revolving bed pyrolysis oven 3 export pass through into
Material spiral connection, feed auger are arranged on the upper end of melting reactor 4.
In the embodiment of the present invention, the both sides of melting reactor 4 are provided with heat accumulating type vortex burner, are melting reactor 4
Burner hearth provide heat.
High-temperature electric melting furnace, plasma heating reactor is also can select in the present invention, and other can make fire box temperature
It is increased to the temperature required reactor of reaction.
Quench groove 5 is used for receiving liquid slag, forms solid glass body by quenching process.Which has liquid slag entrance, consolidates
State vitreum is exported.Also, liquid slag entrance is connected with the liquid slag outlet of melting reactor 4.
Waste heat boiler 6 can utilize carbonaceous residues liquefaction process to discharge the waste heat of high-temperature flue gas, produce water vapour.Which has height
Warm smoke inlet, low-temperature flue gas outlet.Wherein, high-temperature flue gas entry is connected with the high-temperature flue gas outlet of melting reactor 4.
There are heat regenerator 7 low-temperature flue gas entrance, cooled flue gas to export.Sent into by waste heat boiler 6 for reception
Air in low-temperature flue gas, low-temperature flue gas and heat regenerator 7 carries out heat exchange and obtains cooled flue gas.Cooled flue gas are sent successively
Enter deduster 8, denitration desulfurizer 9, absorbent charcoal adsorber 10 carry out dedusting, denitration desulfurization, after adsorption cleaning, via chimney
Fume extractor 11 is discharged.
Pyrolysis oil air cooling device 12 has pyrolysis oil gas entrance, condensing gas outlet, pyrolysis oil gas entrance and revolving bed heat
The pyrolysis oil gas vent connection of solution stove 3.Caustic wash tower 13 has condensing gas entrance, the condensing gas entrance and pyrolysis oil air cooling device
12 condensing gas outlet connection.
The pyrolysis oil gas that domestic garbage pyrolysis process is discharged is cooled down through pyrolysis oil air cooling device 12 successively, caustic wash tower 13 takes off
After except sour gas, then in the regenerative gas radiant tube that sends back in revolving bed pyrolysis oven 3, it is that the pyrolysis of life garbage raw material is carried
Heating load, the flue gas after burning is via 11 qualified discharge of chimney emission device.
As shown in Fig. 2 being illustrated using the method flow that the system shown in Fig. 1 processes house refuse for the embodiment of the present invention
Figure.Including step：
(1) house refuse pretreatment
The step is used for pre-processing house refuse, finally gives the life for meeting 3 feed needs of revolving bed pyrolysis oven
Garbage raw material living, it may include one or more below.
Screening：The house refuse for shipping is transported in the rotary screen that aperture is 20*80, in the effect that rotary screen is rolled
Under, filter out dregs therein.
Sorting coarse crushing：Oversize after screening through rotary screen, all carries out sorting in feeding sorting disintegrating machines and crushes, remove
Stone therein and glass blocks is removed, and the large-scale thing block in house refuse is crushed to the material of particle diameter≤150 simultaneously.
Pre- magnetic separation：Pre- magnetic separation is carried out by concentration equipment to material, ferrous metal therein is reclaimed.
Two-stage crushing：Above-mentioned further broken according to the requirement of briquetting work through broken material, it is broken for particle diameter ＜ 20
Material block；
Smart magnetic separation：The above-mentioned material through two-stage crushing carries out smart magnetic separation, reclaims small-sized ferrous metal therein.
After through said one or multiple step process, that is, it is met the house refuse of 3 feed needs of revolving bed pyrolysis oven
Raw material.
(2) storage and conveying of house refuse raw material
The pretreated house refuse feedstock delivery for obtaining is stacked 3～7 days to material pit 1.Then, will by grab bucket
House refuse raw material in material pit 1 is delivered in feeding feed arrangement 2.By controlling the material meter of 2 lower end of feeding feed arrangement
Measuring device, can adjust charging rate, so as to control the fabric thickness of house refuse raw material in revolving bed pyrolysis oven 3.
(3) pyrolysis processing of house refuse
House refuse raw material is sent in revolving bed pyrolysis oven 3 by the feeding feed arrangement 2 with sealing device.Charging
The material-homogenating device arranged at mouthful is evenly arranged in house refuse raw material on drapery panel.House refuse raw material is on drapery panel with rotation
The rotation of bed pyrolysis oven 3 passes sequentially through infrared heating zones, gas heating area, and carbonaceous residues are finally obtained.
Wherein, the house refuse raw thickness on flitch is 20～50.The rotating speed of revolving bed pyrolysis oven 3 is set to 10～
45min/r.
In infrared heating zones, infrared radiation heating pipe with the vertical range of house refuse ingredient upper surface on drapery panel is
50～100.Stirrer lower limb is 5～10 with the vertical range of cloth plate surface, for stirring for house refuse raw material,
The volatilization of moisture after promoting to heat up in lower floor's house refuse raw material.
Radiated infrared optical wavelength is 1～30 μm, the wavelength of hydrone in the IR wavelengths frequency and house refuse raw material
Intrinsic frequency is equal, and so as to quickly be only absorbed by the water, moisture temperature is quickly raised.Also, as ultrared heat is passed
Pass and do not need intermediate medium, interior of articles can be directly penetrating, realize the water of drapery panel top layer and internal layer house refuse raw material
Temperature is divided to raise simultaneously.
Infra-red radiation provides up to more than 70 times of heat flow density than heat convection.Therefore, entering in revolving bed pyrolysis oven 3
Infrared radiation heating pipe is set up at material mouth end, can substantially reduce the energy consumption in pyrolytic process, while shortening pyrolysis time, improves rotation
The disposal ability of bed pyrolysis oven 3.
In gas heating area, the vertical range of house refuse ingredient upper surface on regenerative gas radiant tube and drapery panel
For 50～100, the temperature of regenerative gas radiant tube is 800～1100 DEG C, further provides heat for revolving bed pyrolysis oven 3
Amount.
In revolving bed pyrolysis oven 3, whole pyrolytic process employs the mode of radiant heating.Due to radiation energy with radiation away from
From being inversely proportional to, and need to avoid house refuse raw material from contacting with radiant tube, cause equipment operation exception, it is therefore preferable that radiant tube
(as infrared radiation heating pipe and regenerative gas radiant tube) exists apart from the vertical range control of house refuse ingredient upper surface
50～100mm.
House refuse raw material moisture therein and organic is waved after the pyrolysis processing in infrared heating zones and gas heating area
Send out to divide and separated successively, obtain carbonaceous residues and pyrolysis oil gas.
Pyrolysis oil gas is sequentially sent in pyrolysis oil air cooling device 12, caustic wash tower 13, after condensed, removing sour gas
Combustion gas, then send back in revolving bed pyrolysis oven 3, it is passed through in regenerative gas radiant tube and burns, is that revolving bed pyrolysis oven 3 provides heat
Amount, the flue gas after burning is through 11 qualified discharge of chimney emission device.
(4) frit reaction
The carbonaceous residues that above-mentioned steps are obtained are sent from the discharging spiral of revolving bed pyrolysis oven 3, then via feed auger
Send into from the top of melting reactor 4.Heat accumulating type vortex burner therein provides heat for whole burner hearth, and fire box temperature is
1300～1500 DEG C, carbonaceous residues liquefy to form liquid slag and high-temperature flue gas.Liquid slag is sent in Quench groove 5, at chilling
Reason, obtains solid glass body, and heavy metal is effectively solidified, and forms non-toxic products.
Wherein, the percentage that carbonaceous residues account for house refuse raw material is 25wt%, with one-step method melt process house refuse
Compare, greatly reduce the volume and energy consumption of melting reactor 4.
In this step, intrinsic class containing chlorobenzene extremely toxic substance (including two English) in carbonaceous residues, in melting reactor 4
Generation cracking reaction, the overwhelming majority are cracked into nontoxic component.
(5) recycling of flue gas
Waste heat boiler 6 directly receives the high-temperature flue gas of above-mentioned steps generation, can produce water steaming using the heat of high-temperature flue gas
Vapour.The temperature of high-temperature flue gas is reduced to 400～550 DEG C from 1200～1400 DEG C, obtains low-temperature flue gas.
Then, low-temperature flue gas are sent in heat regenerator 7 and is exchanged heat with air.By rotary type heat exchanger, low
The temperature of warm flue gas is reduced to 200 DEG C of ＜ from 400～550 DEG C in 3s, is prevented effectively from the extremely toxic substance of class containing chlorobenzene (including two
English) recombine.Meanwhile, air is preheated to 300～400 DEG C, can be used as heat accumulating type vortex burner in melting reactor 4
Required combustion-supporting gas is used, and effectively improves the heat utilization efficiency of whole process.
After cooled flue gas are discharged by heat regenerator 7, deduster 8, denitration desulfurizer 9, activated carbon is sequentially fed into
Adsorbent equipment 10 carry out dedusting, removing nitrogen oxides and sulfide, adsorption cleaning after, reach zero release of pollutant, then via
Chimney emission device 11 is discharged.
Embodiment 1
20t house refuses are provided by Nan Kou towns, is sent in material pit after sequentially passing through broken, screening and magnetic separation.Then, lead to
Cross grab bucket and the house refuse raw material in material pit is delivered to feeding feed arrangement.
House refuse raw material is entered in revolving bed pyrolysis oven via the feeding feed arrangement with sealing device.In material-homogenating device
In the presence of, house refuse raw material is evenly arranged on drapery panel, and fabric thickness is 30 ± 5mm.
House refuse raw material is rotated with drapery panel, sequentially passes through infrared heating zones and gas heating area, and revolving bed is pyrolyzed
The rotating speed of stove is 25 ± 3min/r.Radiant tube is 50mm with the vertical range of house refuse ingredient upper surface.Radiated infrared light wave
A length of 1～25 μm, the moisture temperature in house refuse raw material is quickly raised, the quickly volatilization with being arranged on rotation of the moisture on top layer
Delivery line at the top of bed pyrolysis oven is drawn.
Then, house refuse raw material enters gas heating area.Now, the wherein moisture of more than 90wt% volatilizees.Accumulation of heat
The temperature of formula gas fired radiant tubes is 850 ± 100 DEG C, and house refuse material temperature continues rising, organic volatile matter and residual moisture
Volatilized.The gaseous product that infrared heating zones and gas heating area derive cools down recovery respectively.The carbonaceous residues of generation pass through
Feed auger is sent into inside burner hearth from melting reactor upper end, and heat accumulating type vortex burner therein provides heat for whole burner hearth
Amount.Under 1350 ± 50 DEG C of high temperature, carbonaceous residues liquefy to form liquid slag, form solid glass body thing after Quench groove chilling
Matter.
The high-temperature flue gas that melting reactor burning is generated are passed through producing steam in waste heat boiler and use.High-temperature flue-gas are down to
After 500 ± 20 DEG C, enter in heat regenerator with cold air direct heat transfer, temperature is down to less than 200 DEG C in 3 seconds, air
It is preheating to 350 ± 20 DEG C.Flue gas after cooling passes through chimney after further dedusting, denitration, desulfurization and charcoal absorption
Fume extractor is discharged.
In the present embodiment, 8.4t water can be obtained after 20t domestic rubbish disposals, filters out 3.2t soil and 4.6t solid glass bodies
Material.
Embodiment 2
The present embodiment adopts system and method same as Example 1.Wherein, cloth of the house refuse raw material on drapery panel
Material thickness is 18 ± 2mm；The rotating speed for controlling revolving bed pyrolysis oven is 12 ± 2min/r；Radiant tube and house refuse ingredient upper surface
Vertical range be 70mm；Radiated infrared optical wavelength is 1～30 μm；The temperature of regenerative gas radiant tube is 1000 ± 70 DEG C；
The fire box temperature of melting reactor is 1400 ± 50 DEG C.
The high-temperature flue gas that melting reactor burning is generated are passed through producing steam in waste heat boiler and use.High-temperature flue-gas are down to
After 380 ± 20 DEG C, enter in heat regenerator with cold air direct heat transfer, temperature is down to less than 200 DEG C in 3 seconds, air
It is preheating to 300 ± 30 DEG C.Flue gas after cooling passes through chimney after further dedusting, denitration, desulfurization and charcoal absorption
Fume extractor is discharged.
In the present embodiment, 8.2t water can be obtained after 20t domestic rubbish disposals, filters out 3.4t soil and 3.8 solid glass bodies
Material.
Embodiment 3
The present embodiment adopts system and method same as Example 1.Wherein, cloth of the house refuse raw material on drapery panel
Material thickness is 45 ± 5mm；The rotating speed for controlling revolving bed pyrolysis oven is 40 ± 5min/r；Radiant tube and house refuse ingredient upper surface
Vertical range be 100mm；Radiated infrared optical wavelength is 1～30 μm；The temperature of regenerative gas radiant tube is 1050 ± 50 DEG C；
The fire box temperature of melting reactor is 1450 ± 50 DEG C.
The high-temperature flue gas that melting reactor burning is generated are passed through producing steam in waste heat boiler and use.High-temperature flue-gas are down to
After 540 ± 10 DEG C, enter in heat regenerator with cold air direct heat transfer, temperature is down to less than 200 DEG C in 3 seconds, air
It is preheating to 400 ± 20 DEG C.Flue gas after cooling passes through chimney after further dedusting, denitration, desulfurization and charcoal absorption
Fume extractor is discharged.
In the present embodiment, 8.4t water can be obtained after 20t domestic rubbish disposals, filters out 3.4t soil and 3.6t solid glass bodies
Material.
Process of the present invention can long-term smooth operation, equipment failure rate is extremely low.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out the change or variation of other multi-forms.There is no need to be exhaustive to all of embodiment.And thus drawn
Obvious change or change among still in protection scope of the present invention that Shen goes out.
Claims (10)
1. a kind of domestic garbage treating system, it is characterised in that including material pit, feeding feed arrangement, revolving bed pyrolysis oven, heat
Solution oil gas cooling device, melting reactor, Quench groove, waste heat boiler；
The material pit is used for stacking house refuse raw material；
The house refuse raw material is sent in the feeding feed arrangement by the material pit by grab bucket；
The revolving bed pyrolysis oven has charging aperture, pyrolysis oil gas vent, carbonaceous residues outlet；The charging aperture and the feeding
The discharging opening connection of feed arrangement；
The revolving bed pyrolysis oven is ring packing structure, including being provided with infrared heating zones and the setting of infrared radiation heating pipe
There is the gas heating area of regenerative gas radiant tube；
The pyrolysis oil air cooling device has pyrolysis oil gas entrance, the heat of the pyrolysis oil gas entrance and the revolving bed pyrolysis oven
Solution oil gas vent connection；
The melting reactor has carbonaceous residues entrance, high-temperature flue gas outlet, liquid slag outlet；The carbonaceous residues entrance with
The carbonaceous residues outlet of the revolving bed pyrolysis oven is connected by feed auger；
The Quench groove has liquid slag entrance, and the liquid slag entrance is connected with the liquid slag outlet of the melting reactor；
The waste heat boiler has high-temperature flue gas entry, the high-temperature flue gas outlet of the high-temperature flue gas entry and the melting reactor
Connection.
2. system according to claim 1, it is characterised in that also include heat regenerator, the heat regenerator
For receiving the low-temperature flue gas that is sent into by the waste heat boiler, the low-temperature flue gas are entered with the air in the heat regenerator
Row heat exchange obtains cooled flue gas, and the cooled flue gas are sequentially sent to deduster, denitration desulfurizer, absorbent charcoal adsorber, cigarette
Chimney fume extractor.
3. system according to claim 1, it is characterised in that also include caustic wash tower, there is the caustic wash tower condensing gas to enter
Mouthful, the condensing gas entrance is connected with the condensing gas outlet of the pyrolysis oil air cooling device.
4. system according to claim 1, it is characterised in that be provided with refining at the charging aperture of the revolving bed pyrolysis oven
Device, the discharge end of the material-homogenating device are communicated with the infrared heating zones；
Stirrer is provided with per two between the infrared radiation heating pipe, for stirring the house refuse raw material, promote water
The volatilization for dividing.
5. system according to claim 1, it is characterised in that
Heat accumulating type vortex burner is provided with the melting reactor, provides heat for the melting reactor；
The lower end of the feeding feed arrangement is provided with material metering device, for measuring the conveying speed of the house refuse raw material
Degree.
6. the method that a kind of arbitrary described system of utilization claim 1-5 carries out domestic rubbish disposal, it is characterised in that include
Step：
A, house refuse raw material stack 3～7 days afterwards in the material pit, are transported to the feeding charging dress by the grab bucket
In putting；
B, the house refuse raw material are sent in the revolving bed pyrolysis oven, in the material-homogenating device via the feeding feed arrangement
In the presence of be evenly arranged on drapery panel, and pass sequentially through the infrared heating zones, gas heating area, the house refuse is former
Moisture and organic volatile matter in material is separated successively, obtains carbonaceous residues and pyrolysis oil gas；
C, the carbonaceous residues are sent into via the feed auger in the burner hearth of the melting reactor, wherein the heat accumulating type
In the presence of vortex burner, the carbonaceous residues liquefy to form liquid slag and high-temperature flue gas；
D, the liquid slag is sent into and formed in the Quench groove solid glass body, and the high-temperature flue gas are sent into the waste heat
In boiler.
7. method according to claim 6, it is characterised in that before the step A, also include the pre- place of house refuse
Reason step：
Screening：House refuse is transported in the rotary screen that aperture is 20*80, dregs is sifted out；And/or,
Sorting coarse crushing：The sorted coarse crushing of oversize in the rotary screen, obtains the material of particle diameter≤150；
Pre- magnetic separation：Pre- magnetic separation is carried out to above-mentioned material, reclaims ferrous metal therein；And/or,
Two-stage crushing：Material through pre- magnetic separation is crushed to particle diameter ＜ 20；And/or,
Smart magnetic separation：Smart magnetic separation is carried out through the material of two-stage crushing, small-sized ferrous metal therein is reclaimed.
8. method according to claim 6, it is characterised in that in the step B,
The rotating speed of the revolving bed pyrolysis oven is 10～45min/r；
House refuse raw thickness on the drapery panel is 20～50；
The vertical range of the infrared radiation heating pipe in the infrared heating zones and the house refuse ingredient upper surface is 50～
100, radiated infrared optical wavelength is 1～30 μm；Stirrer lower limb is 5～10 with the vertical range of the cloth plate surface
㎜；
Regenerative gas radiant tube in the gas heating area is 50 with the vertical range of the house refuse ingredient upper surface
～100, the temperature of regenerative gas radiant tube is 800～1100 DEG C.
The pyrolysis oil pneumatic transmission is entered after the pyrolysis oil air cooling device, caustic wash tower carry out condensing, remove sour gas, is sent
Return in the regenerative gas radiant tube and burn, the flue gas after burning is sent in the chimney emission device and discharged.
9. method according to claim 6, it is characterised in that in the step C, it is former that the carbonaceous residues account for house refuse
The percentage of material is 25wt%；
The fire box temperature of the melting reactor is 1300～1500 DEG C.
10. method according to claim 6, it is characterised in that in the D steps,
In the waste heat boiler, the high-temperature flue-gas are reduced to 400～550 DEG C from 1200～1400 DEG C, obtain low temperature
Flue gas；
The low-temperature flue gas are sent in the heat regenerator and are exchanged heat with air, the low-temperature flue gas temperature is by 400
～550 DEG C are reduced to 200 DEG C of ＜, the air themperature rise a height of 300～400 DEG C, and control time of the heat transfer process≤
3s.
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| CN201611138850.3A CN106493155A (en) | 2016-12-12 | 2016-12-12 | A kind of domestic garbage treating system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138850.3A CN106493155A (en) | 2016-12-12 | 2016-12-12 | A kind of domestic garbage treating system and method |
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ID=58330869
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987280A (en) * | 2017-04-24 | 2017-07-28 | 北京神源环保有限公司 | A kind of system and method for fluid bed refuse pyrolysis |
| CN109824271A (en) * | 2019-01-16 | 2019-05-31 | 武汉博立达农业科技发展有限公司 | It handles the method for house refuse and implements its system |
| CN110686249A (en) * | 2019-10-18 | 2020-01-14 | 中国科学院力学研究所 | Integrated equipment for treating dangerous solid wastes through plasma melting |
| CN113714246A (en) * | 2021-08-03 | 2021-11-30 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
| CN114951210A (en) * | 2022-05-27 | 2022-08-30 | 常州大学 | Energy vehicle system for treating oil-based rock debris and energy vehicle |
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2016
- 2016-12-12 CN CN201611138850.3A patent/CN106493155A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987280A (en) * | 2017-04-24 | 2017-07-28 | 北京神源环保有限公司 | A kind of system and method for fluid bed refuse pyrolysis |
| CN109824271A (en) * | 2019-01-16 | 2019-05-31 | 武汉博立达农业科技发展有限公司 | It handles the method for house refuse and implements its system |
| CN110686249A (en) * | 2019-10-18 | 2020-01-14 | 中国科学院力学研究所 | Integrated equipment for treating dangerous solid wastes through plasma melting |
| CN113714246A (en) * | 2021-08-03 | 2021-11-30 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
| CN113714246B (en) * | 2021-08-03 | 2022-12-23 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
| CN114951210A (en) * | 2022-05-27 | 2022-08-30 | 常州大学 | Energy vehicle system for treating oil-based rock debris and energy vehicle |
| CN114951210B (en) * | 2022-05-27 | 2024-03-12 | 常州大学 | Energy vehicle system and energy vehicle for treating oil-based rock debris |
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