CN105855274A - Household garbage disposal system and method - Google Patents
Household garbage disposal system and method Download PDFInfo
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- CN105855274A CN105855274A CN201610391388.1A CN201610391388A CN105855274A CN 105855274 A CN105855274 A CN 105855274A CN 201610391388 A CN201610391388 A CN 201610391388A CN 105855274 A CN105855274 A CN 105855274A
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- heat
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- gas
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 108
- 238000000197 pyrolysis Methods 0.000 claims abstract description 101
- 238000002309 gasification Methods 0.000 claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 239000003610 charcoal Substances 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 39
- 238000000926 separation method Methods 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 22
- 239000008246 gaseous mixture Substances 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000005338 heat storage Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 26
- 230000008569 process Effects 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000001833 catalytic reforming Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 231100000584 environmental toxicity Toxicity 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006833 reintegration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000004056 waste incineration Methods 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
- 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
- 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
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- 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)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a household garbage disposal system and method. The system comprises a pit heating system, a heat accumulating type rotary bed pyrolyzing furnace, a fluidized bed gasification device and a condenser. The pit heating system comprises a heat pipe medium inlet and a discharge port. The heat accumulating type rotary bed pyrolyzing furnace comprises a feed port, a gas outlet, a waste charcoal outlet and a smoke outlet, and the feed port is connected with the discharge port of the pit heating system. A high temperature oil gas inlet of the condenser is connected with a gas outlet of the heat accumulating type rotary bed pyrolyzing furnace. An inner circulating gas outlet of the condenser and the smoke outlet of the heat accumulating type rotary bed pyrolyzing furnace are connected with the heat pipe medium inlet of the pit heating system. A waste charcoal inlet of the fluidized bed gasification device is connected with a discharge port of the heat accumulating type rotary bed pyrolyzing furnace. The method comprises the steps that frozen household garbage is heated and then subjected to drying and pyrolysis, and smoke and a medium absorbing heat are recycled; waste charcoal is gasified. Disposal of the frozen household garbage is realized, and waste heat is recycled at the same time.
Description
Technical field
The invention mainly relates to a kind of processing system and the method for rubbish, particularly relate to a kind of life rubbish that freezes
The processing system of rubbish and method.
Background technology
At present, the process problem of domestic waste becomes whole people's focus of attention already.Existing landfill,
The treatment technology such as compost, burning, but owing to these technology exist some intrinsic shortcomings so that it is development
It is restricted.China many urban construction MSW Incineration Plant, but burn two brought
English pollution problem causes people's dispute to waste incineration mode.Two English environmental toxicities are big, are difficult to
Degraded, causes great threat to resident is healthy.
The advantage that domestic garbage pyrolysis technology is high with its resource utilization rate, environmental pollution is little is increasingly by people
Favored, use pyrolysis mode process rubbish, the problems such as two English, flying dust will not be produced, be
Present optimal trash processing way.Pyrolysis primary product has following several: 1. pyrolysis oil, one
Divide pyrolysis oil can be used as fuel oil by refined；2. pyrolytic carbon, major part exists with white carbon black form,
Can use as solid fuel and also can mix mud etc. of heating up water；3. pyrolysis gas, including some low molecule hydrocarbonization
Compound such as hydrogen, methane, carbon monoxide etc., can use as fuel gas, is that pyrolysis produces economic valency
The major product of value.
Additionally pyrolysis gas contains the waste heat of high value, waste heat is carried out recycling and can realize energy-conservation subtracting
The purposes such as row, reduction production cost.
But in the winter of cold district, rubbish easily freezes, if be directly processed to, can increase pre-
The difficulty processed, and be sent to pyrolysis in pyrolysis oven and can consume more energy, this can increase throwing
Enter cost, and waste resource.
Prior art has a kind of device for north rubbish fermentation heating, and this device mainly utilizes boiler to add
Heat makes the house refuse of freezed in winter ferment, but the heater used is the most complicated, and power consumption is relatively big,
And the process of rubbish is still used to the mode of burning, the materials such as two English, flying dust can be produced dirty
Dye environment.
So, for the problems referred to above, it is necessary to the processing system of invention one way of life rubbish and method,
While icing domestic rubbish disposal, can effectively pyrolysis gas waste heat be reclaimed again, to reach
Energy-saving and emission-reduction, raising efficiency of energy utilization, simplification of flowsheet, the purpose of reduction production cost.
Summary of the invention
For the problems referred to above, it is desirable to provide the processing system of one way of life rubbish and method, this is
System and method, again can be to pyrolysis gas and flue gas heat recoveries while processing icing house refuse.
The processing system of the house refuse that the present invention provides includes: material hole heating system, heat accumulating type rotate
Bed pyrolysis oven, fluidized gasification device and condenser, wherein, described material hole heating system includes heat pipe
Medium inlet, discharging opening；Described heat accumulating type rotating bed pyrolysis oven includes charging aperture, gas outlet, rubbish
The outlet of rubbish charcoal and exhanst gas outlet；Described charging aperture is connected with the discharging opening of described material hole heating system, institute
State exhanst gas outlet to be connected with the heat-pipe medium entrance of described material hole heating system；Described condenser includes height
Temperature oil gas entrance, the outlet of interior circulating air；Described high-temperature oil gas entrance is pyrolyzed with described heat accumulating type rotating bed
The gas outlet of stove is connected；The outlet of described interior circulating air enters with the heat-pipe medium of described material hole heating system
Mouth is connected；Described fluidized gasification device includes rubbish charcoal entrance, described rubbish charcoal entrance and described storage
The rubbish charcoal outlet of hot type revolving bed pyrolysis oven is connected.
Above-mentioned processing system, described material hole heating system be formed around heat pipe.
Above-mentioned processing system, the discharging opening of described material hole heating system and described heat accumulating type rotating bed heat
Solve and be provided with batcher and belt conveyor between the charging aperture of stove.
Above-mentioned processing system, described heat accumulating type rotating bed pyrolysis oven include revolving bed pyrolysis oven body,
Heat-storage type burner；Described revolving bed pyrolysis oven body includes furnace wall, the furnace bottom of rotation and described furnace wall
The burner hearth fenced up with the furnace bottom of described rotation；Described heat-storage type burner is located at described furnace wall；Described
Burner hearth is divided into dry section and pyrolysis zone along the direction of rotation of described furnace bottom.
Above-mentioned processing system, the outlet of rubbish charcoal and the described fluidisation of described heat accumulating type rotating bed pyrolysis oven
It is provided with Double helix discharging machine between the rubbish charcoal entrance of bed gasifying apparatus.
Further, described processing system may also include dust separation system, combustible gas storage tank；Described
Dust separation system includes the outlet of gaseous mixture entrance, combustible gas and dedusting ash outlet, and described gaseous mixture enters
Mouth is connected with the mixed gas outlet of described fluidized gasification device, the outlet of described dedusting ash and described fluidisation
The dedusting ash entrance of bed gasifying apparatus is connected；Described combustible gas storage tank includes combustible gas entrance, combustible gas
Outlet, described combustible gas entrance exports with the combustible gas of described dust separation system and is connected, described flammable
Gas outlet is connected with the combustible gas entrance of described heat accumulating type rotating bed pyrolysis oven.
The present invention also provides for a kind of processing method utilizing above-mentioned processing system to carry out house refuse, described
Method comprises the steps of and the house refuse feeding described material hole heating system of icing is heated,
The house refuse making described icing is melted；The described house refuse melted is sent into described heat accumulating type
Revolving bed pyrolysis oven is dried and pyrolytic reaction, and reaction generates high-temperature oil gas and rubbish charcoal；By described
Flue gas in heat accumulating type rotating bed pyrolysis oven is passed through described material hole heating system；Described high-temperature oil gas is led to
Enter described condenser and carry out refrigerated separation, isolate pyrolysis oil and pyrolysis gas；To inhale in described condenser
Receive the medium after heat and be passed through described material hole heating system as thermal source；Described rubbish charcoal is passed through described
Fluidized gasification device gasifies, it is thus achieved that gaseous mixture.
Above-mentioned method, the medium in described condenser can be air.
Above-mentioned method, the baking temperature of described heat accumulating type rotating bed pyrolysis oven is 300 DEG C-400 DEG C, heat
Solving temperature is 500 DEG C-800 DEG C；The gasification temperature of described fluidized gasification device is 850 DEG C-1300 DEG C.
Further, described method may further comprise the step of:
The gaseous mixture described gasification produced is after dust separation system carries out dedusting, cooling, desulfurization
Obtain combustible gas product；The dedusting ash that described dust separation system produces is passed through described fluidized gasification
Device；
A part for described combustible gas is sent into combustible gas storage tank, and another part sends into the rotation of described heat accumulating type
The heat-storage type burner of rotated bed pyrolysis oven.
According to the technique scheme of the present invention, while solving the process problem of icing house refuse,
Pyrolysis gas waste heat can be reclaimed again, reach energy-saving and emission-reduction, improved efficiency of energy utilization, simplification work
Process flow, the purpose of reduction production cost.
Accompanying drawing explanation
Fig. 1 is the processing system flow chart of the house refuse of the embodiment of the present invention；
Fig. 2 is the plan structure sketch of the heat accumulating type rotating bed pyrolysis oven of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is carried out more detailed theory
Bright, so as to the advantage being more fully understood that the solution of the present invention and various aspects.But, below
The detailed description of the invention and the embodiment that describe are only descriptive purpose rather than limitation of the present invention.
A kind of processing system being applicable to cold district icing house refuse of the present invention and method,
Technical process is:
After the rubbish frozen is sent into rubbish pit heating system, the material hole surrounding of material hole heating system twines
Around heat pipe it is heated.After the rubbish frozen melts, it is sent to without heat carrier heat accumulating type
Revolving bed, ultimately generates high-temperature oil gas and solid refuse charcoal, and the flue gas discharged that burns is passed through material hole four
In the heat pipe in week, provide heat for the rubbish frozen.High-temperature oil gas is divided after being condensed by condenser
Separate out pyrolysis oil and pyrolysis gas, be passed through in the heat pipe of material hole surrounding after the medium heat absorption in condenser, make
For the thermal source of heat pipe, also the rubbish for freezing provides heat.Medium in condenser can be air.This
In flue gas that in system, heat accumulating type rotating bed pyrolysis oven is discharged and condenser, the air that is heated is together as warm
The thermal source of pipe, provides heat for the rubbish frozen, it is achieved that recycling of pyrolysis waste heat.Rubbish charcoal
Through the sealing Double helix discharging machine discharging of the realized crushing function of body of heater, send into fluidized gasification dress
Put and gasify.Admixture of gas gasification obtained is available combustible gas product after udst separation.
Foul smell in gaseous mixture is dispelled during pyrolytic gasification simultaneously.
The present invention just completes the purpose of heat drying and pyrolysis by simple flow process, and finally giving can
Combustion gas, technological process is short, operating cost is low, and resource, energy level are high, product economy benefit
Good, secondary pollution is few, produces without two English, it is easy to accomplish the industrialization of refuse pyrolysis and scale.
In the process treatment process of the present invention, its early stage carries out heating the heat of icing rubbish and comes from oil
The flue gas heat that the energy discharged during air cooling is solidifying and revolving bed are discharged, has reached to recycle pyrolysis
The purpose of waste heat, has higher environmental protection and economy to be worth.
The herein below that is accomplished by of technical solution of the present invention is described in detail.
As it is shown in figure 1, the processing system of the house refuse of the present embodiment mainly includes material hole heating system,
Heat accumulating type rotating bed pyrolysis oven, fluidized gasification device, dust separation system, combustible gas storage tank.Its
In dust separation system and combustible gas storage tank not necessarily device.
Described material hole heating system has heat-pipe medium entrance and discharging opening.The interior circulating air of condenser goes out
Mouth is connected with material hole heat-pipe medium entrance.High-temperature oil gas carries out Oil-gas Separation, condenser by condenser
After interior Absorption of Medium heat, the rubbish frozen in being cheated by heat pipe transmission feed by this partial heat is added
Heat.
As in figure 2 it is shown, have with the material hole described heat accumulating type rotating bed pyrolysis oven that is connected of heating system into
Material mouth 3, high-temperature oil gas outlet 5, rubbish charcoal outlet 4, combustible gas entrance and exhanst gas outlet, and according to
Temperature is divided into dry section (300 DEG C-400 DEG C) 1, (500 DEG C, pyrolysis zone along direction of rotation at the bottom of rotary hearth furnace
-800 DEG C) 2, the high-temperature oil gas outlet of described heat accumulating type rotating bed pyrolysis oven is arranged on heat accumulating type rotating bed
The pyrolysis zone furnace roof of pyrolysis oven, the position of close rubbish charcoal outlet 4, described heat accumulating type rotating bed is pyrolyzed
The rubbish charcoal discharging of stove uses Double helix discharging machine.Fig. 2 is the top view of heat accumulating type rotating bed pyrolysis oven.
Described fluidized gasification device, for being gasified by rubbish charcoal, makes admixture of gas.
Fluidized gasification device has rubbish charcoal entrance, gasification agent inlet, mixed gas outlet and dedusting ash entrance,
The rubbish charcoal entrance of described fluidized gasification device is connected with the discharging opening of heat accumulating type rotating bed pyrolysis oven.
Described dust separation system has gaseous mixture entrance, and combustible gas outlet and dedusting ash export, described
The gaseous mixture entrance of dust separation system is connected with the mixed gas outlet of fluidized gasification device, described removes
The dedusting ash outlet of dirt cleaning system is connected with the dedusting ash entrance of described fluidized gasification device.
Described combustible gas storage tank has a combustible gas entrance, the combustible gas entrance of described combustible gas storage tank with remove
The combustible gas outlet of dirt cleaning system is connected.Further, the combustible gas outlet of described combustible gas storage tank
It is connected with the combustible gas entrance of heat accumulation type radiant tube revolving bed.
In said system, being discussed in detail of each device is illustrated by combining following processing method.
The processing method of the house refuse of the present invention, including step:
A, the heating of house refuse: the house refuse of icing is unloaded in the material hole of pan feeding hole heating system,
Heated to it by the heat pipe of material hole surrounding；After the rubbish frozen melts, by batcher and belt
Send into heat accumulating type rotating bed pyrolysis oven, course of conveying is sorted out bulk inorganic matter therein, as brick,
Stone, big part glass metal goods etc..
B, dry, the pyrolysis of house refuse: the main equipment of pyrolysis is without heat carrier heat accumulating type rotating bed
Pyrolysis oven, it includes revolving bed pyrolysis oven body, regenerative gas burner and cloth, discharging etc.
Auxiliary body.Its furnace bottom is rotating ring-shaped furnace bottom, and regenerative gas burner arrangement is in annular furnace
Wall, burner is radial canal structure, provides refuse pyrolysis institute in thermal-radiating mode after combustible gas burning
The heat needed, the flue gas in the radial canal of heat accumulating type rotating bed pyrolysis oven and the atmosphere isolation in revolving bed.
Flue gas is by the heat pipe being passed through material hole heating system further.Pyrolysis oven is divided into two regions, respectively
It is dry section and pyrolysis zone, at body of heater top, gas outlet is set near pyrolysis zone end, be used for collecting
High-temperature oil gas containing water vapour.
Dry section temperature 300-400 DEG C, Main Function is to be dried by the moisture in rubbish.Dry in stove
The dry steam that essentially consists in the energy consumption difference of drying outside stove is increased to in-furnace temperature by 100 DEG C and is consumed
Sensible heat QSteam.Owing to the gasification latent heat of water is very big, and QSteamHeat only accounts for 25% left side of total energy consumption
Right.Simultaneously relatively low owing to drying the thermal efficiency outside stove the most again, exhaust gas volumn is big, containing flue gas frowzy also need into
Row Odor control, overall operation expense improves, thus dries more advantage in stove.
Pyrolysis zone temperature 500-800 DEG C, be rubbish complete pyrolysis main reaction region, reaction generate high temperature oil
Gas and rubbish charcoal.Further heated up in the band gas frowzy Ye Gai district that dry section generates simultaneously,
Part foul smell is dispelled.The flue gas that revolving bed is discharged is passed through in the heat pipe of material hole surrounding, and in condenser
Heated air one be all icing rubbish heat supply.
The high-temperature oil gas that pyrolysis produces carries out refrigerated separation by condenser, isolates pyrolysis oil and pyrolysis
Gas；It is passed through after Absorption of Medium heat in condenser in the heat pipe of material hole surrounding as thermal source, adds accumulation of heat
The rubbish of ice.
The rubbish charcoal produced uses and seals Double helix discharging machine discharging and send in fluidized gasification device,
Double helix is arranged side by side, and spiral is engaged.Owing to rubbish have passed through pyrolytic reaction, plastics therein,
Fabric, the wood Organic substance such as bamboo is all pyrolyzed as carbide, and this carbide is different from crude waste, and it loosens
Easily broken, through double-helical stirring, squeezing action, shattering process can be completed while discharging,
Form the raw material meeting the gasification of fluidized gasification device.
C, condenser heat reuse: high-temperature oil gas carries out cooling down and then reaching Oil-gas Separation by condenser,
Absorption of Medium heat in condenser, is passed through as thermal source in the heat pipe that material hole surrounding is wound around, for freezing
Rubbish heating.Medium can be air.
D, fluidized gasification: rubbish charcoal gasifies in being passed through fluidized gasification device, gasification temperature is
850 DEG C-1300 DEG C, utilizing the Pintsch process in stove, partial gasification in gasification, rubbish charcoal is to tar
Catalytic reforming effect by macromole tar gasification be cracked into small-molecule substance, reach remove tar mesh
, solve the problem that refuse pyrolysis oil is difficult to process and utilize.Residual residue is collected conduct
Construction material or carry out landfill disposal.
E, gasification gaseous mixture udst separation: gasification produce gaseous mixture through two stage cyclone cleaner unit,
Combustible gas product is obtained after cooling, desulfurization.The dedusting ash that cleaner unit produces is back to stream by anti-glassware
Change in bed gasifying apparatus.A part of combustible gas burns as fuel gas supply heat-storage type burner, one
Divide and can sell as product.
The technical scheme of the embodiment of the present invention solves the process problem of the house refuse of icing, it is to avoid
Icing rubbish is directly placed into pyrolysis oven carry out pyrolysis and can consume the defect of more multi-energy.The present invention utilizes
Heat and the flue gas of heat accumulating type rotating bed pyrolysis oven generation that condensed oil-gas produces heat rubbish, both profits
With energy, pyrolysis energy consumption can be reduced again.Further, the present invention improves refuse pyrolysis gasification
The macroeconomic of technique, it is easy to industrialization promotion.
Below in conjunction with specific embodiment, technical scheme is described.
In following embodiment, institute's taking technique condition value is exemplary, and its desirable numerical range is the most front
State shown in description.
Embodiment 1
Using certain city's house refuse is raw material, msw water content 50%, becomes to be grouped into such as table 1:
Table 1 house refuse becomes to be grouped into (wt%) (weight content)
The step utilizing the domestic garbage treating system introduced in detailed description of the invention to carry out processing is as follows:
A, the heating of house refuse: the house refuse of icing unloaded in pan feeding hole, by material hole surrounding
Heat pipe heats to it, after the rubbish frozen melts, sends into heat accumulating type by batcher and belt and rotates
Bed pyrolysis oven, sorts out bulk inorganic matter therein, such as brick, stone, big part glass in course of conveying
Glass metallic article etc..
B, dry, the pyrolysis of house refuse: the main equipment of pyrolysis is without heat carrier heat accumulating type rotating bed
Pyrolysis oven, it includes revolving bed pyrolysis oven body, heat storage type gas radiation pipe burner, and cloth,
The auxiliary bodies such as discharging.Heat accumulating type rotating bed pyrolysis oven furnace bottom is rotating ring-shaped furnace bottom, heat accumulating type
Gas burner is arranged in annular furnace wall, and it is radial canal.In thermal-radiating mode after combustible gas burning
Refuse pyrolysis institute calorific requirement, the flue gas in radial canal and the atmosphere isolation in revolving bed are provided.Will pyrolysis
Stove is divided into two regions, is dry section and pyrolysis zone respectively, sets near pyrolysis zone end at body of heater top
It is equipped with gas outlet, for collecting the high-temperature oil gas containing water vapour.
Dry section temperature 300 DEG C, Main Function is to be dried by the moisture in rubbish.Pyrolysis zone temperature
600 DEG C, be the rubbish main reaction region that completes pyrolysis, and reaction generates high-temperature oil gas and rubbish charcoal.This test
Also other temperature such as dry section temperature 350 DEG C or 400 DEG C etc. was tried, pyrolysis zone temperature 500 DEG C,
850 DEG C etc., effect is similar.Entered in the band gas frowzy Ye Gai district that dry section generates simultaneously
One step heats up, and can be dispelled by part foul smell.
The high-temperature oil gas that pyrolysis produces carries out refrigerated separation by condenser, isolates pyrolysis oil and pyrolysis
Gas；It is passed through after Absorption of Medium heat in condenser in the heat pipe of material hole surrounding as thermal source, adds accumulation of heat
The rubbish of ice.
The rubbish charcoal produced uses and seals Double helix discharging machine discharging and send in fluidized gasification device,
Double helix is arranged side by side, and spiral is engaged.Owing to rubbish have passed through pyrolytic reaction, plastics therein,
Fabric, the wood Organic substance such as bamboo is all pyrolyzed as carbide, and this carbide is different from crude waste, loose easily
In broken, through double-helical stirring, squeezing action, shattering process can be completed while discharging,
Form the raw material meeting the gasification of fluidized gasification device.
C, condenser heat reuse: high-temperature oil gas carries out cooling down and then reaching Oil-gas Separation by condenser,
Absorption of Medium heat in condenser, is passed through as thermal source in the heat pipe that material hole surrounding is wound around, for freezing
Rubbish heating.
D, fluidized gasification: gasification temperature is 1000 DEG C, rubbish charcoal is passed through fluidized gasification device to be carried out
Gasification, utilizes the Pintsch process in stove, partial gasification, the catalysis to tar of the rubbish charcoal in gasification
The gasification of macromole tar is cracked into small-molecule substance by reintegration, reaches to remove the purpose of tar, solves
The problem that refuse pyrolysis oil of having determined is difficult to process and utilize.Residual residue is collected as Building wood
Expect or carry out landfill disposal.Certainly the gasification temperature of this test gasification installation is 850 DEG C-1300 DEG C, this
It is 850 DEG C, 1300 DEG C of equivalences that test took gasification temperature, and effect is similar.
E, gasification gaseous mixture udst separation: gasification produce gaseous mixture through two stage cyclone cleaner unit,
Combustible gas product is obtained after cooling, desulfurization.The dedusting ash that cleaner unit produces is back to stream by anti-glassware
Change bed gasifying apparatus.A part for combustible gas is burnt as fuel gas supply heat-storage type burner, one
It is allocated as production marketing.Rubbish per ton can produce combustible gas 230Nm3, its composition and calorific value are as follows:
Table 2 combustible gas composition and calorific value
From above example, technical scheme is solving process problem same of icing rubbish
Time, pyrolysis gas waste heat can be reclaimed again, reach energy-saving and emission-reduction, improved efficiency of energy utilization, letter
Metallization processes flow process, the purpose of reduction production cost.
Last it is noted that obviously, above-described embodiment is only to be made by clearly demonstrating the present invention
Citing, and not restriction to embodiment.For those of ordinary skill in the field,
Can also make other changes in different forms on the basis of the above description.Here without also
Cannot all of embodiment be given exhaustive.And the obvious change thus amplified out or change
Move among still in protection scope of the present invention.
Claims (10)
1. the processing system of one way of life rubbish, it is characterised in that described system includes material hole heating system
System, heat accumulating type rotating bed pyrolysis oven, fluidized gasification device and condenser, wherein,
Described material hole heating system includes heat-pipe medium entrance, discharging opening；
Described heat accumulating type rotating bed pyrolysis oven includes charging aperture, gas outlet, the outlet of rubbish charcoal and flue gas
Outlet；Described charging aperture is connected with the discharging opening of described material hole heating system, described exhanst gas outlet and institute
The heat-pipe medium entrance stating material hole heating system is connected；
Described condenser includes that high-temperature oil gas entrance, interior circulating air export；Described high-temperature oil gas entrance with
The gas outlet of described heat accumulating type rotating bed pyrolysis oven is connected；The outlet of described interior circulating air is cheated with described material
The heat-pipe medium entrance of heating system is connected；
Described fluidized gasification device includes rubbish charcoal entrance, described rubbish charcoal entrance and described heat accumulating type
The rubbish charcoal outlet of revolving bed pyrolysis oven is connected.
Processing system the most according to claim 1, it is characterised in that described material hole heating system
Be formed around heat pipe.
Processing system the most according to claim 1, it is characterised in that described material hole heating system
Discharging opening and the charging aperture of described heat accumulating type rotating bed pyrolysis oven between be provided with batcher and Belt Conveying
Mechanism.
Processing system the most according to claim 1, it is characterised in that described heat accumulating type rotating bed
Pyrolysis oven includes revolving bed pyrolysis oven body, heat-storage type burner；Described revolving bed pyrolysis oven body bag
Include the burner hearth that the furnace bottom of furnace wall, the furnace bottom of rotation and described furnace wall and described rotation fences up；Described storage
Described furnace wall is located at by hot type burner；Described burner hearth along the direction of rotation of described furnace bottom be divided into dry section and
Pyrolysis zone.
Processing system the most according to claim 1, it is characterised in that described heat accumulating type rotating bed
It is provided with Double helix between the outlet of rubbish charcoal and the rubbish charcoal entrance of described fluidized gasification device of pyrolysis oven
Discharging machine.
Processing system the most according to claim 1, it is characterised in that described processing system is also wrapped
Include dust separation system, combustible gas storage tank；Described dust separation system includes gaseous mixture entrance, flammable
Gas outlet and dedusting ash export, and described gaseous mixture entrance goes out with the gaseous mixture of described fluidized gasification device
Mouth is connected, and the outlet of described dedusting ash is connected with the dedusting ash entrance of described fluidized gasification device；Described
Combustible gas storage tank includes that combustible gas entrance, combustible gas export, and described combustible gas entrance is clean with described dedusting
The combustible gas outlet of change system is connected, the outlet of described combustible gas and described heat accumulating type rotating bed pyrolysis oven
Combustible gas entrance is connected.
7. utilizing a processing method for processing system described in any one of claim 1-6, its feature exists
Step is included in, described method:
The house refuse of icing is sent into described material hole heating system heat so that described icing
House refuse is melted；
The described house refuse the melted described heat accumulating type rotating bed pyrolysis oven of feeding is dried and heat
Solving reaction, reaction generates high-temperature oil gas and rubbish charcoal；By the cigarette in described heat accumulating type rotating bed pyrolysis oven
Gas is passed through described material hole heating system；
Described high-temperature oil gas is passed through described condenser and carries out refrigerated separation, isolate pyrolysis oil and pyrolysis
Gas；
Medium after absorbing heat in described condenser is passed through described material hole heating system as thermal source；
Described rubbish charcoal is passed through described fluidized gasification device gasify, it is thus achieved that gaseous mixture.
Method the most according to claim 7, it is characterised in that the medium in described condenser
For air.
Method the most according to claim 7, it is characterised in that described heat accumulating type rotating bed is pyrolyzed
The baking temperature of stove is 300 DEG C-400 DEG C, pyrolysis temperature is 500 DEG C-800 DEG C；Described fluidized gasification
The gasification temperature of device is 850 DEG C-1300 DEG C.
Method the most according to claim 7, it is characterised in that described method further comprises the steps of:
The gaseous mixture described gasification produced is after dust separation system carries out dedusting, cooling, desulfurization
Obtain combustible gas product；The dedusting ash that described dust separation system produces is passed through described fluidized gasification
Device；
A part for described combustible gas is sent into combustible gas storage tank, and another part sends into the rotation of described heat accumulating type
The heat-storage type burner of rotated bed pyrolysis oven.
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| CN106642136A (en) * | 2016-11-21 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type spiral pyrolysis device and application thereof |
| CN106629725A (en) * | 2016-12-08 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | System and method of utilizing waste and old tires to prepare active carbon |
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