CN106001056A - Disposal system and method for household garbage - Google Patents
Disposal system and method for household garbage Download PDFInfo
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- CN106001056A CN106001056A CN201610391370.1A CN201610391370A CN106001056A CN 106001056 A CN106001056 A CN 106001056A CN 201610391370 A CN201610391370 A CN 201610391370A CN 106001056 A CN106001056 A CN 106001056A
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- heat
- accumulating type
- entrance
- combustible gas
- pyrolysis oven
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000000197 pyrolysis Methods 0.000 claims abstract description 95
- 238000002309 gasification Methods 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 239000003610 charcoal Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 16
- 239000008246 gaseous mixture Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000005338 heat storage Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 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
- 238000004140 cleaning Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 84
- 239000002918 waste heat Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 26
- 230000008569 process Effects 0.000 description 19
- 239000000126 substance Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000003546 flue gas 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
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000002699 waste material 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
- 241000209202 Bromus secalinus 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
- 238000001833 catalytic reforming Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 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
- 230000005855 radiation Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 210000000952 spleen Anatomy 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010791 domestic waste Substances 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
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 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
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
- 238000013022 venting Methods 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
-
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a disposal system and a disposal method for household garbage. The system comprises a material pit heating system, a heat accumulating type revolving bed pyrolyzing furnace, a fluidized bed gasification device and an condenser; the material pit heating system comprises a heat pipe medium inlet and a discharge hole; the heat accumulating type revolving bed pyrolyzing furnace comprises a feeding hole, a gas outlet and a garage charcoal outlet; the feeding hole is connected with the discharge hole of the material pit heating system; the high temperature oil gas inlet of the condenser is connected with the gas outlet of the heat accumulating type revolving bed pyrolyzing furnace; the internal circulation water outlet of the condenser is connected with the heat pipe medium inlet of the material pit heating system; and the fluidized bed gasification device comprises a garbage charcoal inlet, and the garbage charcoal inlet is connected with the garbage charcoal outlet of the heat accumulating type revolving bed pyrolyzing furnace. The method comprises the following steps: heating frozen household garbage and then drying and carrying out pyrolysis, and recycling the medium after heat absorption in the condenser; and gasifying the garbage charcoal. The system and the method can solve the problem of disposal of frozen household garbage, and can circularly utilize waste heat, thus achieving the purpose of energy saving and emission reduction.
Description
Technical field
The invention mainly relates to a kind of processing system and the method for rubbish, particularly relate to the process of a kind of house refuse that freezes
System and method.
Background technology
At present, the process problem of domestic waste becomes whole people's focus of attention already.Existing landfill, compost, burning
Deng treatment technology, but owing to these technology exist some intrinsic shortcomings so that it is development is restricted.China's many urban construction
MSW Incineration Plant, but burn the two English pollution problems brought and cause people waste incineration mode is striven
View.Two English environmental toxicities are big, the most degradable, cause great threat to resident is healthy.
The advantage that domestic garbage pyrolysis technology is high with its resource utilization rate, environmental pollution is little increasingly by people green grass or young crops
Look at, use the mode of pyrolysis to process rubbish, the problems such as two English, flying dust will not be produced, be present optimal garbage disposal side
Formula.Pyrolysis primary product has following several: 1. pyrolysis oil, and a part of pyrolysis oil can be used as fuel oil by refined；2. heat
Solving charcoal, 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-molecular-weight hydrocarbon such as hydrogen, methane, carbon monoxide etc., can use as fuel gas, is that pyrolysis produces economic worth
Major product.
Additionally pyrolysis gas contains the waste heat of high value, waste heat is carried out recycling and can realize energy-saving and emission-reduction, reduction
The purposes such as production cost.
But in the winter of cold district, rubbish easily freezes, if be directly processed to, the difficulty of pretreatment can be increased
Degree, and be sent to pyrolysis in pyrolysis oven and can consume more energy, this cost of increasing input, and waste resource.
Prior art has a kind of device for north rubbish fermentation heating, and this device mainly utilizes boiler heating to make winter
The house refuse fermentation frozen, but the heater used is the most complicated, power consumption is relatively big, and the process of rubbish is still used
It is the mode burned, the Substances Pollution environment such as two English, flying dust can be produced.
So, for the problems referred to above, it is necessary to the processing system of invention one way of life rubbish and method, to the life that freezes
While garbage disposal, can effectively pyrolysis gas waste heat be reclaimed again, to reach energy-saving and emission-reduction, to improve utilization of energy effect
Rate, 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 system and method
While processing icing house refuse, again can be to pyrolysis gas heat recovery.
The processing system of the house refuse that the present invention provides includes: material hole heating system, heat accumulating type rotating bed pyrolysis oven, stream
Changing bed gasifying apparatus and condenser, wherein, described material hole heating system includes heat-pipe medium entrance, discharging opening；Described heat accumulating type
Revolving bed pyrolysis oven includes charging aperture, gas outlet, and rubbish charcoal exports；Described charging aperture cheats the discharging of heating system with described material
Mouth is connected；Described condenser includes high-temperature oil gas entrance, interior circulating water outlet；Described high-temperature oil gas entrance revolves with described heat accumulating type
The gas outlet of rotated bed pyrolysis oven is connected；Described interior circulating water outlet cheats the heat-pipe medium entrance phase of heating system with described material
Even；Described fluidized gasification device includes rubbish charcoal entrance, described rubbish charcoal entrance and described heat accumulating type rotating bed pyrolysis oven
Discharging opening 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 the charging of described heat accumulating type rotating bed pyrolysis oven
Batcher and belt conveyor it is provided with between Kou.
Above-mentioned processing system, described heat accumulating type rotating bed pyrolysis oven includes revolving bed pyrolysis oven body, heat storage type combustion
Device；Described revolving bed pyrolysis oven body includes what the furnace bottom of furnace wall, the furnace bottom of rotation and described furnace wall and described rotation fenced up
Burner hearth；Described heat-storage type burner is located at described furnace wall；Described burner hearth is divided into dry section and heat along the direction of rotation of described furnace bottom
Xie Qu.
Above-mentioned processing system, the outlet of rubbish charcoal and the described fluidized gasification device of described heat accumulating type rotating bed pyrolysis oven
Rubbish charcoal entrance between be provided with Double helix discharging machine.
Further, described processing system may also include dust separation system, combustible gas storage tank；Described dust separation system
Including gaseous mixture entrance, combustible gas outlet and dedusting ash outlet, described gaseous mixture entrance is mixed with described fluidized gasification device
Closing gas outlet to be connected, the outlet of described dedusting ash is connected with the dedusting ash entrance of described fluidized gasification device；Described combustible gas stores up
Tank includes that combustible gas entrance, combustible gas export, and described combustible gas entrance exports with the combustible gas of described dust separation system and is connected,
The outlet of described combustible gas 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 comprise with
Lower step: the house refuse of icing is sent into described material hole heating system and heats so that the house refuse of described icing is melted
Change；Being dried and pyrolytic reaction by the described house refuse the melted described heat accumulating type rotating bed pyrolysis oven of feeding, reaction is raw
Become high-temperature oil gas and rubbish charcoal；Described high-temperature oil gas is passed through described condenser and carries out refrigerated separation, isolate pyrolysis oil and heat
Vent one's spleen；Medium after absorbing heat in described condenser is passed through described material hole heating system as thermal source；By described rubbish charcoal
It is passed through described fluidized gasification device to gasify, it is thus achieved that gaseous mixture.
Above-mentioned method, the medium in described condenser can be water or ethanol.
Above-mentioned method, the baking temperature of described heat accumulating type rotating bed pyrolysis oven is 300 DEG C-400 DEG C, pyrolysis temperature is
500℃-800℃；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 that described gasification produces is obtained combustible gas after dust separation system carries out dedusting, cooling, desulfurization
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 described heat accumulating type rotating bed pyrolysis oven
Heat-storage type burner.
According to the technique scheme of the present invention, while solving the process problem of icing house refuse, again can be to heat
Waste heat of venting one's spleen reclaims, and has reached energy-saving and emission-reduction, has improved efficiency of energy utilization, simplification of flowsheet, reduction production cost
Purpose.
Accompanying drawing explanation
Fig. 1 is the processing system flow chart of the house refuse 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 described in more details, in order to energy
The advantage being enough more fully understood that the solution of the present invention and various aspects.But, specific embodiments described below and enforcement
Example is 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, main technique stream
Cheng Shi:
After the rubbish frozen is sent into rubbish pit heating system, the heat pipe pair that the material hole surrounding of material hole heating system is wound around
It heats.After the rubbish that freezes melts, be sent to without heat carrier heat accumulating type rotating bed, ultimately generate high-temperature oil gas with
Solid refuse charcoal.High-temperature oil gas isolates pyrolysis oil and pyrolysis gas by condenser after being condensed, the medium in condenser is inhaled
It is passed through after heat in the heat pipe of material hole surrounding, as the thermal source of heat pipe, provides heat for the rubbish frozen.Rubbish charcoal is through body of heater
The sealing Double helix discharging machine discharging of crushing function can be realized, send into fluidized gasification device and gasify.Gasification is obtained
Admixture of gas is available combustible gas product after udst separation.Foul smell in gaseous mixture obtains during pyrolytic gasification simultaneously
To dispelling.
The present invention just completes the purpose of heat drying and pyrolysis by simple flow process, finally gives combustible gas, technique
Flow process is short, operating cost is low, and resource, energy level are high, and product economy is profitable, and secondary pollution is few, produces without two English,
It is easily achieved industrialization and the scale of refuse pyrolysis.
In the process treatment process of the present invention, its early stage carries out heating the heat of icing rubbish and comes from oil gas condensation process
The energy of middle release, has reached to recycle the purpose of pyrolysis waste heat, has had 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 rotates
Bed pyrolysis oven, fluidized gasification device, dust separation system, combustible gas storage tank.Dust separation system therein stores up with combustible gas
Tank not necessarily device.
Described material hole heating system has heat-pipe medium entrance and discharging opening.The interior circulating water outlet of condenser and material hole heat
Pipe medium inlet is connected.High-temperature oil gas carries out Oil-gas Separation by condenser, after the Absorption of Medium heat in condenser, by this portion
Divide the rubbish heating that heat is frozen in being cheated by heat pipe transmission feed.
The described heat accumulating type rotating bed pyrolysis oven being connected with material hole heating system has charging aperture, and high-temperature oil gas exports, rubbish
Rubbish charcoal exports, combustible gas entrance and exhanst gas outlet, and is divided into dry section according to temperature along direction of rotation at the bottom of rotary hearth furnace
(300 DEG C-400 DEG C), pyrolysis zone (500 DEG C-800 DEG C), the high-temperature oil gas outlet of described heat accumulating type rotating bed pyrolysis oven is arranged on
The pyrolysis zone furnace roof of heat accumulating type rotating bed pyrolysis oven, the position of close rubbish charcoal outlet, described heat accumulating type rotating bed pyrolysis oven
Rubbish charcoal discharging uses Double helix discharging machine.
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 of described fluidized gasification device
Charcoal entrance 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 udst separation system
The gaseous mixture entrance of system is connected with the mixed gas outlet of fluidized gasification device, the outlet of the dedusting ash of described dust separation system and
The dedusting ash entrance of described fluidized gasification device is connected.
Described combustible gas storage tank has combustible gas entrance, the combustible gas entrance of described combustible gas storage tank and dust separation system
Combustible gas outlet be connected.Further, described combustible gas storage tank combustible gas outlet with heat accumulation type radiant tube revolving bed can
Fuel gas inlet is connected.
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, by material hole four
The heat pipe in week heats to it；After the rubbish frozen melts, send into heat accumulating type rotating bed pyrolysis oven by batcher and belt,
Course of conveying is sorted out bulk inorganic matter therein, such 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, its bag
Include revolving bed pyrolysis oven body, regenerative gas burner and the auxiliary body such as cloth, discharging.Its furnace bottom is rotating ring
Shape furnace bottom, regenerative gas burner arrangement is in annular furnace wall, and burner is radial canal structure, with heat radiation after combustible gas burning
Mode the heat needed for refuse pyrolysis is provided, the flue gas in the radial canal of heat accumulating type rotating bed pyrolysis oven and the gas in revolving bed
Atmosphere completely cuts off.Pyrolysis oven is divided into two regions, is dry section and pyrolysis zone respectively, arrange near pyrolysis zone end at body of heater top
Gas outlet, for collecting the 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 and dry outside stove
Dry energy consumption difference essentially consists in steam and is increased to, by 100 DEG C, the sensible heat Q that in-furnace temperature is consumedSteam.Gasification due to water
Latent heat is very big, and QSteamHeat only accounts for about the 25% of total energy consumption.Relatively low owing to drying the thermal efficiency outside stove the most again, exhaust gas volumn
Greatly, also needing to carry out Odor control containing flue gas frowzy, overall operation expense improves, thus dries more advantage in stove.
Pyrolysis zone temperature 500-800 DEG C, is the rubbish main reaction region that completes pyrolysis, and reaction generates high-temperature oil gas and rubbish
Charcoal.Being further heated up in the band gas frowzy Ye Gai district that dry section generates simultaneously, part foul smell is dispelled.
The high-temperature oil gas that pyrolysis produces carries out refrigerated separation by condenser, isolates pyrolysis oil and pyrolysis gas；Condenser
It is passed through after interior Absorption of Medium heat in the heat pipe of material hole surrounding as thermal source, the rubbish that heating freezes.Medium in condenser
Can be water or ethanol.
The rubbish charcoal produced uses and seals Double helix discharging machine discharging and send in fluidized gasification device, and Double helix is side by side
Arranging, spiral is engaged.Owing to rubbish have passed through pyrolytic reaction, plastics therein, fabric, the Organic substance such as wood bamboo is all pyrolyzed and is
Carbide, this carbide is different from crude waste, and it loosens easily broken, through double-helical stirring, squeezing action, can go out
Complete shattering process while material, 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 reach Oil-gas Separation, in condenser by condenser
Absorption of Medium heat, be passed through in the heat pipe that material hole surrounding is wound around as thermal source, for the rubbish heating frozen.
D, fluidized gasification: garbage carbon gasifies in being passed through fluidized gasification device, gasification temperature is 850 DEG C-1300
DEG C, gasification utilizes the Pintsch process in stove, partial gasification, rubbish charcoal is burnt by macromole to the catalytic reforming effect of tar
Oil gasification is cracked into small-molecule substance, reaches to remove the purpose of tar, and solve that refuse pyrolysis oil is difficult to process and utilize asks
Topic.Residual residue is collected as construction material or carries out landfill disposal.
E, the udst separation of gasification gaseous mixture: the gaseous mixture that gasification produces is after two stage cyclone cleaner unit, cooling, desulfurization
Obtain combustible gas product.The dedusting ash that cleaner unit produces is back in fluidized gasification device by anti-glassware.A part of flammable
Gas is as fuel gas supply heat-storage type burner burning, and a part can be sold 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 the rubbish that will freeze
It is directly placed into pyrolysis oven to carry out pyrolysis and can consume the defect of more multi-energy.The heat that the present invention utilizes condensed oil-gas to produce heats
Rubbish, both make use of energy, can reduce again pyrolysis energy consumption.Further, the present invention improves refuse pyrolysis gasifying process
Macroeconomic, 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, in its desirable numerical range book as indicated above
Shown in.
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, added to it by the heat pipe of material hole surrounding
Heat, after the rubbish frozen melts, sends into heat accumulating type rotating bed pyrolysis oven by batcher and belt, sorts out in course of conveying
Bulk inorganic matter therein, such 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, its bag
Include revolving bed pyrolysis oven body, heat storage type gas radiation pipe burner, and the auxiliary body such as cloth, discharging.Heat accumulating type rotates
Bed pyrolysis oven furnace bottom is rotating ring-shaped furnace bottom, and regenerative gas burner arrangement is in annular furnace wall, and it is radial canal.Flammable
There is provided refuse pyrolysis institute calorific requirement in thermal-radiating mode after gas firing, the flue gas in radial canal and the atmosphere in revolving bed every
Absolutely.Pyrolysis oven is divided into two regions, is dry section and pyrolysis zone respectively, at body of heater top, pyrolysis zone end is provided with gas
Body exports, 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, is rubbish
Rubbish completes the main reaction region of pyrolysis, and reaction generates high-temperature oil gas and rubbish charcoal.The band gas frowzy that dry section generates simultaneously
Further heated up in Ye Gai district, part foul smell can be dispelled.
The high-temperature oil gas that pyrolysis produces carries out refrigerated separation by condenser, isolates pyrolysis oil and pyrolysis gas；Condenser
It is passed through after interior Absorption of Medium heat in the heat pipe of material hole surrounding as thermal source, the rubbish that heating freezes.
The rubbish charcoal produced uses and seals Double helix discharging machine discharging and send in fluidized gasification device, and Double helix is side by side
Arranging, spiral is engaged.Owing to rubbish have passed through pyrolytic reaction, plastics therein, fabric, the Organic substance such as wood bamboo is all pyrolyzed and is
Carbide, this carbide is different from crude waste, loose easily broken, through double-helical stirring, squeezing action, can be in discharging
While complete shattering process, 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 reach Oil-gas Separation, in condenser by condenser
Absorption of Medium heat, be passed through in the heat pipe that material hole surrounding is wound around as thermal source, for the rubbish heating frozen.
D, fluidized gasification: gasification temperature is 1000 DEG C, rubbish charcoal is passed through fluidized gasification device and gasifies, and gasifies
Utilizing the Pintsch process in stove, partial gasification in journey, the gasification of macromole tar is split by rubbish charcoal by the catalytic reforming effect of tar
Solving is small-molecule substance, reaches to remove the purpose of tar, solves the problem that refuse pyrolysis oil is difficult to process and utilize.Remain residual
Slag is collected as construction material or carries out landfill disposal.
E, the udst separation of gasification gaseous mixture: the gaseous mixture that gasification produces is after two stage cyclone cleaner unit, cooling, desulfurization
Obtain combustible gas product.The dedusting ash that cleaner unit produces is back to fluidized gasification device by anti-glassware.One of combustible gas
Being allocated as burning for fuel gas supply heat-storage type burner, a part is 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, while solving the process problem of icing rubbish, again can
Pyrolysis gas waste heat is reclaimed, reached energy-saving and emission-reduction, improve efficiency of energy utilization, simplification of flowsheet, reduction produce into
This purpose.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating example of the present invention, and also
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 change or the variation of other multi-form.Here without also cannot all of embodiment be given exhaustive.And thus drawn
What Shen went out obviously changes or changes 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, 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, and rubbish charcoal exports；Described charging aperture is cheated with described material
The discharging opening of heating system is connected；
Described condenser includes high-temperature oil gas entrance, interior circulating water outlet；Described high-temperature oil gas entrance rotates with described heat accumulating type
The gas outlet of bed pyrolysis oven is connected；Described interior circulating water outlet is connected with the heat-pipe medium entrance of described material hole heating system；
Described fluidized gasification device includes rubbish charcoal entrance, described rubbish charcoal entrance and described heat accumulating type rotating bed pyrolysis oven
The outlet of rubbish charcoal 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 the discharging opening of described material hole heating system and described storage
It is provided with batcher and belt conveyor between the charging aperture of hot type revolving bed pyrolysis oven.
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 includes furnace wall, the furnace bottom of rotation and described furnace wall and institute
State the burner hearth that the furnace bottom of rotation fences up；Described heat-storage type burner is located at described furnace wall；Described burner hearth is along the rotation of described furnace bottom
Turn direction and be divided into dry section and pyrolysis zone.
Processing system the most according to claim 1, it is characterised in that the rubbish charcoal of described heat accumulating type rotating bed pyrolysis oven goes out
It is provided with Double helix discharging machine between mouth and the rubbish charcoal entrance of described fluidized gasification device.
Processing system the most according to claim 1, it is characterised in that described processing system 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, and the outlet of described dedusting ash removes with described fluidized gasification device
Dirt ash entrance is connected；Described combustible gas storage tank includes that combustible gas entrance, combustible gas export, described combustible gas entrance and described dedusting
The combustible gas outlet of cleaning system is connected, and described combustible gas exports the combustible gas entrance phase with described heat accumulating type rotating bed pyrolysis oven
Even.
7. one kind utilizes the processing method of processing system described in any one of claim 1-6, it is characterised in that described method includes
Step:
The house refuse of icing is sent into described material hole heating system heat so that the house refuse of described icing is melted；
Being dried and pyrolytic reaction by the described house refuse the melted described heat accumulating type rotating bed pyrolysis oven of feeding, reaction is raw
Become high-temperature oil gas and rubbish charcoal；
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 is water or ethanol.
Method the most according to claim 7, it is characterised in that the baking temperature of described heat accumulating type rotating bed pyrolysis oven is
300 DEG C-400 DEG C, pyrolysis temperature be 500 DEG C-800 DEG C；The gasification temperature of described fluidized gasification 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 that described gasification produces is obtained combustible gas product after dust separation system carries out dedusting, cooling, desulfurization；
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 storage of described heat accumulating type rotating bed pyrolysis oven
Hot type burner.
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