CN105925293A - Self-dust-removal type pyrolyzing and cracking system for waste tires - Google Patents
Self-dust-removal type pyrolyzing and cracking system for waste tires Download PDFInfo
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- CN105925293A CN105925293A CN201610489916.7A CN201610489916A CN105925293A CN 105925293 A CN105925293 A CN 105925293A CN 201610489916 A CN201610489916 A CN 201610489916A CN 105925293 A CN105925293 A CN 105925293A
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- 238000005336 cracking Methods 0.000 title claims abstract description 151
- 239000010920 waste tyre Substances 0.000 title claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 157
- 238000000197 pyrolysis Methods 0.000 claims abstract description 151
- 239000000428 dust Substances 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 54
- 230000008569 process Effects 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000013461 design Methods 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims description 62
- 239000011449 brick Substances 0.000 claims description 36
- 238000009413 insulation Methods 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 31
- 239000000919 ceramic Substances 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 22
- 239000000567 combustion gas Substances 0.000 claims description 18
- 238000002309 gasification Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 13
- 239000002737 fuel gas Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000002918 waste heat Substances 0.000 claims description 9
- 238000004227 thermal cracking Methods 0.000 claims description 5
- 235000019362 perlite Nutrition 0.000 claims description 4
- 239000010451 perlite Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 229930195733 hydrocarbon Natural products 0.000 abstract description 10
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract 1
- 229920002521 macromolecule Polymers 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 150000003384 small molecules Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 230000026676 system process Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- 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
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
- C10B47/20—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge according to the moving bed type
-
- 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
- C10B57/18—Modifying the properties of the distillation gases in the oven
-
- 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
-
- 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
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Abstract
The invention belongs to the technical field of pyrolysis of waste tires and mainly relates to a self-dust-removal type pyrolyzing and cracking system for the waste tires based on regenerative radiant tube heating. The self-dust-removal type pyrolyzing and cracking system is used for preparing clean combustible gases. Aiming at the defects in the prior art, the invention designs and develops a self-dust-removal type pyrolyzing and cracking reaction system for the waste tires. The reaction system can perform two operations of pyrolyzing and cracking; oil gas generated by pyrolyzing enters into a particle bed dust removing device; after the oil gas is subjected to filtering and dust removal, clean oil gas enters a cracking chamber, so that the dust removing pressure of a subsequent process is reduced, and tar macromolecules are cracked into small molecule gaseous hydrocarbons. According to a reactor, a large amount of cracking gases can be generated, thereby solving the problem that produced pyrolytic tar is difficult to utilize, and really realizing clean and efficient utilization of the waste tires.
Description
Technical field
The invention belongs to junked tire pyrolytic technique field, a kind of based on heat accumulation type radiant tube heating from the pyrolysis of dedusting type junked tire and cracking system, is used for producing cleaning combustible gas.
Background technology
Along with fast development and the generally raising of living standards of the people of China's economy, automobile has stepped among daily life, thereby produces substantial amounts of junked tire.Within 2006, China's tire yield is up to 2.8 hundred million, ranks first in the world, the junked tire produced then the most up to 1.4 hundred million, about 3,600,000 tons.The accumulation not only land occupation of a large amount of junked tires, is also easy to grow mosquito bacterium, spreads disease, harm residents ' health, and pole fire hazardous, causes environmental pollution.Junked tire is recycled, is then possible not only to alleviate its pressure to environment, reduce and pollute, more can realize the effective recycling of resource.Processing at present the method for junked tire to have the prototype transformation of the way, produce reclaimed rubber and rubber powder, burn and pyrolysis etc., wherein pyrolytic technique is a kind of method of process junked tire have very much potentiality.Junked tire pyrolytic technique is to be thermally decomposed in anoxic or inert gas by junked tire, can produce pyrolysis gas, pyrolysis oil and charcoal residue etc..The further processed process of these products can change into the high-value product with various uses.Compared with traditional treatment method, pyrolysismethod is possible not only to reclaim the product of high added value, and can reclaim the energy of nearly 70%, has higher economy and environmental benefit.At present, the pyrolytic technique of junked tire mainly has moving bed pyrolysis technique, waste-tire recycling system etc..But, the pyrolisis of tires oil ingredient obtained through pyrolytic technique is extremely complex, and the shortcomings such as pH value is relatively low, oxygen content is high, heat endurance is poor, viscosity is big make it be difficult to directly utilize and store, it is difficult to industrial applications.Therefore, how to design a kind of efficient cleaning combustible gas that produces and become the problem that this area needs solution badly.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, design and develop a kind of from the pyrolysis of dedusting type junked tire and cracking reaction system, this reaction system can carry out being pyrolyzed and crack two kinds of operations, the oil gas that pyrolysis produces, enter grain bed dust arrester, oil gas is after dust removal by filtration, clean oil gas enters into cracking room, reduce the dedusting pressure of subsequent technique, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, this reactor can produce substantial amounts of cracking gas, thus avoid and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The invention provides a kind of from the pyrolysis of dedusting type junked tire and cracking system, according to embodiments of the invention, this system includes: loading hopper；Feeder, described feeder is connected with described loading hopper；Pyrolysis and cracking reactor, including: charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, and the outlet of described cracking gas is arranged on the sidewall of described cracking room；And: heat accumulation type radiant tube, described heat accumulation type radiant tube is along the short transverse multi-tier arrangement of described reactor inside described pyrolysis chamber and described cracking room, and every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction；Heat insulation brick wall, described heat insulation brick wall is arranged at the 2/3 of described reactor transverse width, vertically through in described reactor, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room；Communication member, described communication member is on described heat insulation brick wall longitudinal length, is positioned at the opening of lower position, for being connected with described cracking room described pyrolysis chamber；Grain bed dust arrester, described grain bed dust arrester is fixing with the described opening of described heat insulation brick wall to be connected, and the side that described grain bed dust arrester is positioned at described pyrolysis chamber extends horizontally and to described pyrolysis chamber, for the oil gas that described pyrolysis chamber is produced, by described grain bed dust arrester, it is passed into described cracking room；Ceramic filter, described ceramic filter one end is connected with the outlet of described cracking gas, and the other end is connected with described spray column；Spray column, described spray column is connected with described ceramic filter；Fuel cartridge, described fuel cartridge is connected with described spray column.
Inventor finds, system process according to embodiments of the present invention is simple, easy to operate, this reaction system can carry out being pyrolyzed and crack two kinds of operations, the oil gas that pyrolysis produces, enter grain bed dust arrester, oil gas is after dust removal by filtration, clean oil gas enters into cracking room, reducing the dedusting pressure of subsequent technique, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, this reactor can produce substantial amounts of cracking gas, thus avoid and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique and heats without gas, solid heat carrier, simplifies system process while improve the thermal efficiency of reactor.
According to embodiments of the invention, described grain bed dust arrester is positioned on the side of side, pyrolysis chamber and arranges the pore area with multiple hole, the bottom surface that described grain bed dust arrester is positioned at side, pyrolysis chamber is provided with dust outlet, and the side surface upper part that described grain bed dust arrester is positioned at cracking room side is provided with for described dust arrester is carried out the blow valve port of blowback, bottom is provided with pyrolysis gas outlet.
According to embodiments of the invention, the thickness of described heat insulation brick wall is 50-150mm；The height of described grain bed dust arrester is 200-2000mm, and width is 100-500mm；The height of described pore area is 150-1500mm, a diameter of 1-30mm in described hole.
According to embodiments of the invention, described grain bed dust arrester is embedded in described opening；It is inclined design that described grain bed dust arrester is positioned at the top of side, pyrolysis chamber.
According to embodiments of the invention, farther including combustion gas air-introduced machine, wherein, described combustion gas air-introduced machine one end is connected with the outlet of described spray column, and the other end is connected with described fuel cartridge import.
According to embodiments of the invention, also including gasification furnace, described gasification furnace is connected with fuel gas inlet and the semicoke conveying device of described heat accumulation type radiant tube respectively；Also include that waste heat boiler, described waste heat boiler are connected with the exhanst gas outlet of described heat accumulation type radiant tube.
According to embodiments of the invention, described grain bed dust arrester is built with filter medium high for 1mm-20mm；Described filter medium is perlite, sandstone or spherical ceramic particles.
According to embodiments of the invention, described loading hopper is connected with described charging aperture by described feeder；And also including that semicoke exports, the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveying device.
In another aspect of the present invention, the invention provides a kind of method utilizing foregoing system to carry out junked tire pyrolysis and cracking.According to embodiments of the invention, the method comprises the following steps:
A. waste tyre particle is joined in reactor by charging aperture, in the pyrolysis chamber of described reactor, complete pyrolytic process；
B. being pyrolyzed the oil gas of generation, after carrying out dust removal process by the grain bed dust arrester arranged on the heat insulation brick wall of described reactor, clean oil gas enters into the cracking room of described reactor；
The oil gas of the most described cleaning completes thermal cracking processes in described cracking room, produces cracking gas；
The most described cracking gas enters in spray column by cracking gas outlet, and described cracking gas is carried out purified treatment；
The most purified clean cracking gas, in combustion gas air-introduced machine enters fuel cartridge, stores.
According to embodiments of the invention, in described step a, the described waste tyre particle described charging aperture from described reactor top joins described reactor, and is broken up by the heat accumulation type radiant tube in described reactor, and pyrolysis char exports from the semicoke of described reactor bottom and discharges；In described step a, described waste tyre particle is heated to 500-600 DEG C by the described heat accumulation type radiant tube in described reactor pyrolysis chamber, and in described step b, described pyrolysis oil gas is heated to 650-900 DEG C by the described heat accumulation type radiant tube in described reactor cracking room；Preferably, the granularity of described waste tyre particle is below 20mm.
The beneficial effects of the present invention is:
1) taking the junked tire of heat accumulation type radiant tube moving bed process heating below 20mm, uniformity of temperature profile, heating effect is good, and reaction system simple in construction is easy to operate.
2) reactor is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic at cracking room, and the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule.
3) this reaction system can produce substantial amounts of cracking gas product, it is to avoid the problem that pyrolysis oil is difficult by, and the clean and effective being truly realized junked tire utilizes.
4) two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.
5) being provided with grain bed dust arrester at pyrolysis chamber's oil gas vent, the oil gas that pyrolysis chamber produces, after grain bed dust arrester dedusting, clean oil gas enters back into cracking room and carries out deep pyrolytic, reduces rear end dedusting pressure, generates clean cracking gas.
Accompanying drawing explanation
Fig. 1 is that the present invention is from the pyrolysis of dedusting type junked tire and the structure chart of cracking system.
Fig. 2 is that the present invention is from the pyrolysis of dedusting type junked tire and the structure of reactor figure of cracking system.
Fig. 3 is the front view that the present invention is provided with the heat insulation brick wall of grain bed dust arrester.
Fig. 4 is the structure chart of grain bed dust arrester of the present invention.
Wherein, 1. loading hopper；2. feeder；The most thermal storage type moving bed reactor；310. cracking gas outlets；311. exhanst gas outlet；320. charging aperture；321. air intake；322. fuel gas inlet；330. semicoke outlets；340. cracking room；350. pyrolysis chamber；360. communication member；370. heat insulation brick walls；380. heat accumulation type radiant tube；4. ceramic filter；5. spray column；6. combustion gas air-introduced machine；7. fuel cartridge；8. gasification furnace；9. conveying worm；10. waste heat boiler；11, grain bed dust arrester；111, blow valve port；112, pyrolysis gas outlet；113, dust outlet；114, pore area.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment, the present invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.In embodiment, unreceipted concrete technology or condition, according to the technology described by the document in this area or condition or carried out according to product description.
According to an aspect of the present invention, the invention provides a kind of from the pyrolysis of dedusting type junked tire and cracking system, Fig. 1 is from the pyrolysis of dedusting type junked tire and the structure chart of cracking system, as shown in Figure 1, this system includes that loading hopper 1, feeder 2, described loading hopper 1 and described feeder 2 connect；nullPyrolysis and cracking reactor 3，Described pyrolysis and cracking reactor 3 include: charging aperture 320、Pyrolysis chamber 350、Cracking room 340、Cracking gas outlet 310、Heat accumulation type radiant tube 380、Heat insulation brick wall 370、Communication member 360 and grain bed dust arrester 11，Wherein，Described charging aperture is arranged on the roof of described pyrolysis chamber，The outlet of described cracking gas is arranged on the sidewall of described cracking room，Described heat insulation brick wall is vertically through in described reactor，The inner space of described reactor is separated into described pyrolysis chamber and described cracking room，Described communication member is arranged on described heat insulation brick wall，Pyrolysis chamber is connected with cracking room，Preferably，Described communication member is arranged on the bottom of described heat insulation brick wall，For the oil gas that described pyrolysis chamber is produced，By described communication member，It is passed into described cracking room；Ceramic filter 4, described ceramic filter is connected with the outlet of described cracking gas；Spray column 5, described spray column is connected with described ceramic filter；Fuel cartridge 7, described fuel cartridge is connected with described spray column.Grain bed dust arrester, described grain bed dust arrester is fixing with the described opening of described heat insulation brick wall to be connected.
Inventor finds, system process according to embodiments of the present invention is simple, easy to operate, this reaction system can carry out being pyrolyzed and crack two kinds of operations, the oil gas that pyrolysis produces, enter grain bed dust arrester, oil gas is after dust removal by filtration, clean oil gas enters into cracking room, reducing the dedusting pressure of subsequent technique, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, this reactor can produce substantial amounts of cracking gas, thus avoid and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique and heats without gas, solid heat carrier, simplifies system process while improve the thermal efficiency of reactor.
According to a particular embodiment of the invention, the concrete particle diameter of the junked tire being applicable to the pyrolysis of this junked tire and cracking system is not particularly limited, according to embodiments of the invention, junked tire can be that bulk can also be for little particle, and in some currently preferred embodiments of the present invention, the granularity of the waste tyre particle that this reactor uses is below 20mm, thus, can make full use of little particle junked tire, resource utilization is high, and can solve the problem that the problem that bulk deposition pollutes environment.
According to a particular embodiment of the invention, the type of furnace of the described reactor 3 being applicable to this system is not particularly limited, can be thermal storage type moving bed pyrolysis and cracking reactor 3 can also be other type, such as non-heat accumulating type or non-moving type etc., as long as pyrolysis chamber and cracking room can be divided into by the integration of heat insulation brick wall.In some currently preferred embodiments of the present invention, this reactor 3 uses thermal storage type moving bed reactor 3.
According to a particular embodiment of the invention, Fig. 2 is that this is pyrolyzed the pyrolysis with cracking system and cracking reactor 3 structure chart from dedusting type junked tire, as shown in Figure 2, described heat insulation brick wall is arranged in reactor, preferably, being positioned at the 2/3 of reactor transverse width, the thickness of heat insulation brick wall is 50-150mm.Heat insulation brick wall is vertically through in reactor, the inner space of reactor is separated into pyrolysis chamber and cracking room, this structure makes to be provided with pyrolysis chamber and cracking room, the oil gas that pyrolysis produces in a body of heater, enters grain bed dust arrester, oil gas is after dust removal by filtration, clean oil gas enters into cracking room, reduces the dedusting pressure of subsequent technique, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, produce substantial amounts of cracking gas, thus avoid the problem producing pyrolysis oil dust-laden.Further, two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.
According to a particular embodiment of the invention, the concrete kind of described communication member 360 is not particularly limited, as long as can be connected with cracking room pyrolysis chamber, thus the oil gas that pyrolysis chamber produces is passed into cracking room.In some embodiments of the invention, Fig. 2 is that this is pyrolyzed the pyrolysis with cracking system and cracking reactor 3 structure chart from dedusting type junked tire, as in figure 2 it is shown, this reactor also includes communication member, communication member can be on insulating brick wall longitudinal length, is positioned at the opening of lower position.
According to a particular embodiment of the invention, Fig. 2 is that this is pyrolyzed the pyrolysis with cracking system and cracking reactor 3 structure chart from dedusting type junked tire, as shown in Figure 2, this reactor also includes grain bed dust arrester 11, the side that described grain bed dust arrester is positioned at described pyrolysis chamber extends horizontally and to described pyrolysis chamber, for the oil gas produced described pyrolysis chamber, by described grain bed dust arrester, it is passed into described cracking room.In some embodiments of the invention, when Fig. 3 is in terms of the from left to right of reactor, the front view of heat insulation brick wall, it is connected as it is shown on figure 3, described grain bed dust arrester is fixing with the described opening of described heat insulation brick wall.Preferably, described grain bed dust arrester is embedded in the communication member of described opening part.Further, described grain bed dust arrester is positioned on the side of side, pyrolysis chamber and arranges the pore area 114 with multiple hole.Preferably, the height of described pore area is 150-1500mm, a diameter of 1-30mm in described hole.
According to a particular embodiment of the invention, the concrete structure of described grain bed dust arrester is not particularly limited, as long as the oil gas that pyrolysis chamber produces can be carried out dust removal process.In some embodiments of the invention, Fig. 4 is the structure chart of grain bed dust arrester of the present invention, as shown in Figure 4, the bottom surface that described grain bed dust arrester is positioned at side, pyrolysis chamber is provided with dust outlet 113, and the side surface upper part that described grain bed dust arrester is positioned at cracking room side is provided with for described dust arrester carries out the blow valve port 111 of blowback, bottom is provided with pyrolysis gas outlet 112.Preferably, described grain bed dust arrester is positioned at the top of side, pyrolysis chamber is inclined design, it is simple to pyrolysis material falls；Preferably, the height of described grain bed dust arrester is 200-2000mm, and width is 100-500mm.In some embodiments of the invention, the oil gas that pyrolysis produces, fixes the described grain bed dust arrester being connected, after carrying out dust removal process in pore area by brick wall lower openings heat insulation with reactor, obtain the pyrolysis gas of cleaning, enter into cracking room through pyrolysis gas outlet.When after plant running a period of time, nitrogen can be passed through blow valve port and grain bed dust arrester is carried out blowback, it is ensured that the dust removing effects of grain bed, the dust that blowback goes out is discharged from grain bed dust arrester lower left dust outlet or left side pore area, fall into pyrolysis chamber, cold slag spiral discharge.Thus, the oil gas that pyrolysis chamber produces, enter grain bed dust arrester, after dedusting, obtain the oil gas of cleaning, thus reduce rear end dedusting pressure.
According to a particular embodiment of the invention, in described grain bed dust arrester, concrete kind and the size of filter medium are not particularly limited, as long as the oil gas that pyrolysis chamber produces can be carried out dust removal process effectively.In some embodiments of the invention, Fig. 4 is the structure chart of grain bed dust arrester of the present invention, as shown in Figure 4, can be equipped with filter medium in described grain bed dust arrester, preferably, this filter medium can be the filter medium of high 1mm-20mm, preferably perlite, sandstone, spherical ceramic particles etc..
According to a particular embodiment of the invention, as it is shown in figure 1, described charging aperture is arranged on the roof on top, pyrolysis chamber, loading hopper is connected with described charging aperture by feeder.According to embodiments of the invention, as it is shown in figure 1, this system may further include: loading hopper and feeder, the outlet of described loading hopper is connected with the entrance of described feeder, and the outlet of described feeder is connected with described charging aperture.According to embodiments of the invention, the concrete kind of feeder is not particularly limited, as long as can be effectively delivered in reactor by the junked tire in loading hopper.In some embodiments of the invention, feeder can be star feeder or feed screw.Thereby, it is possible to realize the Automatic Conveying to hot feed, conveying capacity is controlled, and device structure is simple, easy to operate.
According to a particular embodiment of the invention, as it is shown in figure 1, described reactor further comprises semicoke outlet 330, the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveying device 9.Thus, it is possible to utilize semicoke conveying device to be carried by the semicoke obtained in reactor.The concrete kind of semicoke conveying device is not particularly limited, and includes but not limited to star or conveying worm 9.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controlled, and device structure is simple, easy to operate.
According to embodiments of the invention, with reference to Fig. 2, described inside reactor is disposed with multilayer and is arranged in the heat accumulation type radiant tube within described pyrolysis chamber and described cracking room along the short transverse of described reactor, and every layer of heat accumulation type radiant tube can include the heat accumulation type radiant tube of multiple parallel to each other and horizontally spaced distribution.According to embodiments of the invention, in described pyrolysis chamber and cracking room, distributed at least described heat accumulation type radiant tube respectively, it is preferred that described at least heat accumulation type radiant tube is uniformly distributed.Heat accumulation type radiant tube can be effective to heat the oil gas in pyrolysis material and cracking room, it is made to carry out being pyrolyzed and cracking reaction, specifically, combustible gas and air can be passed through in heat accumulation type radiant tube, make combustible gas burning realize the heating function to the oil gas in pyrolysis material and cracking room.This reactor uses heat accumulation type radiant tube heating technique, without gas, solid heat carrier heating, pyrolysis gas will not be diluted, and calorific value is high, and reactor temperature is evenly distributed, surface temperature difference is little, exhaust gas temperature is low, and the thermal efficiency is high, simplifies system process while improve the thermal efficiency of reactor, reaction system simple in construction, easy to operate.
According to embodiments of the invention, in the pyrolysis chamber of described reactor, pyrolysis material moves from top to bottom, and pyrolysis material can be broken up and make it be uniformly distributed by the heat accumulation type radiant tube arranged in described reactor, pyrolysis material stops 1-50 minute the most from top to bottom, and is heated to 500-600 DEG C.According to embodiments of the invention, the shape of heat accumulation type radiant tube is not particularly limited, and in some embodiments of the invention, can be cylindrical, is thus conducive to breaing up of pyrolysis material, it is achieved dispersed in pyrolysis chamber of mixed pyrolysis material.The level interval of radiant tube is 200-500mm, and vertical interval is 200-700mm, and the radiant tube number of plies is 10-25 layer, and reactor width is 2-6m, and height for reactor is 3-20m.It addition, heat accumulation type radiant tube can be the unidirectional heat accumulation type radiant tube being evenly arranged, tube wall temperature utilizes gas control valve to control 500-700 DEG C of scope, and pyrolysis material stops 1-50 minute the most from top to bottom, and is heated to 500-600 DEG C, completes pyrolytic process.Meanwhile, heat accumulation type radiant tube can take the combustion system periodically commutated so that the surface temperature difference of single heat accumulation type radiant tube only has about 30 DEG C, does not has district of localized hyperthermia, thus, to be conducive to improving the thermal efficiency.
According to a particular embodiment of the invention, described reactor is provided with fuel gas inlet 322, air intake 321 and exhanst gas outlet 311, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, it is respectively used to be passed through combustible gas and discharge flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, for being passed through in heat accumulation type radiant tube by the air that source of the gas produces.Thus, can be delivered to pyrolysis chamber obtains semicoke in gasification furnace by fuel gas inlet, semicoke is carried out gasification process, to obtain combustible gas and lime-ash, the combustible gas obtained can enter in heat accumulation type radiant tube by fuel gas inlet, meanwhile, blower fan can be used to be passed through air in heat accumulation type radiant tube by air intake, make combustible gas burning that the pyrolysis material in pyrolysis chamber to be heated.It addition, be transported in waste and old boiler by the flue gas in heat accumulation type radiant tube by exhanst gas outlet, recovered flue gas, make flue gas will not be discharged in air.Thus, it is possible to semicoke is sufficiently utilized, do not cause waste, good economy performance, and, flue gas is reclaimed, does not cause environmental pollution, environmental protection.
According to embodiments of the invention, this system may further include: ceramic filter, and described ceramic filter is arranged between cracking gas outlet and the described spray column of described cracking room.The entrance of described ceramic filter exports with the cracking gas of described cracking room and is connected, and the outlet of described ceramic filter and the entrance of described spray column connect.The concrete kind of ceramic filter is not particularly limited, as long as the cracking gas that cracking gas outlet is discharged can be carried out dust removal process effectively.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: spray column, described spray column is arranged between described ceramic filter and described combustion gas air-introduced machine.The entrance of described spray column is connected with the outlet of described ceramic filter, and the outlet of described spray column is connected with the entrance of described combustion gas air-introduced machine.The concrete kind of spray column is not particularly limited, as long as can washing, purifying cracking gas.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: combustion gas air-introduced machine 6, wherein, described combustion gas air-introduced machine is arranged between described spray column and described fuel cartridge.Described combustion gas air-introduced machine entrance is connected with the outlet of described spray column, and the outlet of described combustion gas air-introduced machine is connected with described fuel cartridge import.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: fuel cartridge, described fuel cartridge is arranged on one end of described combustion gas air-introduced machine.The entrance of described fuel cartridge is connected with the outlet of described combustion gas air-introduced machine.The concrete kind of fuel cartridge is not particularly limited, as long as cracking gas can be stored.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: gasification furnace 8, described gasification furnace is arranged between the fuel gas inlet of described heat accumulation type radiant tube and semicoke conveying device.Described gasification furnace entrance is connected with the outlet of described semicoke conveying device, and the outlet of described gasification furnace is connected with the fuel gas inlet of described heat accumulation type radiant tube.The concrete kind of gasification furnace is not particularly limited, as long as semicoke can be carried out gasification process, to obtain combustible gas and lime-ash, and, the lime-ash obtained after gasification is discharged, the combustible gas obtained can enter in heat accumulation type radiant tube by the fuel gas inlet of heat accumulation type radiant tube, is heated the pyrolysis material in pyrolysis chamber by combustible gas burning.Thereby, it is possible to realize semicoke is sufficiently utilized, do not cause waste, good economy performance.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: waste heat boiler 10, described waste heat boiler is arranged on exhanst gas outlet one end of described heat accumulation type radiant tube.The entrance of described waste heat boiler is connected with the exhanst gas outlet of described heat accumulation type radiant tube.The concrete kind of waste and old boiler is not particularly limited, as long as can recovered flue gas.Thus, flue gas is reclaimed, do not cause environmental pollution, environmental protection.
In another aspect of the present invention, the invention provides a kind of method utilizing foregoing system to carry out junked tire pyrolysis and cracking.According to embodiments of the invention, the method comprises the following steps:
A. waste tyre particle is joined in reactor by charging aperture, in the pyrolysis chamber of described reactor, complete pyrolytic process.Wherein, described junked tire enters into feeder from loading hopper, the charging aperture on reacted device top joins in thermal storage type moving bed reactor, and broken up by the heat accumulation type radiant tube in described reactor, pyrolysis char exports from the semicoke of reactor bottom and discharges, and discharges through semicoke conveying device (preferably conveying worm).
According to embodiments of the invention, the concrete particle diameter of junked tire is not particularly limited, junked tire can be that block junked tire can also be for little particle junked tire, in some currently preferred embodiments of the present invention, the granularity of the waste tyre particle that this reactor uses is below 20mm, thus, it is possible to make full use of little particle junked tire, resource utilization is high, and can solve the problem that the problem that bulk deposition pollutes environment.
According to embodiments of the invention, in pyrolysis chamber, junked tire moves from top to bottom, junked tire can be broken up and make it be uniformly distributed by 15 heat accumulation type radiant tubes arranged in pyrolysis chamber, waste tyre particle stops 1-50 minute the most from top to bottom, and waste tyre particle is heated to 500-600 DEG C by the heat accumulation type radiant tube in reactor pyrolysis chamber.Concrete, by the temperature of gas valve control heat accumulation type radiant tube tube wall 500-700 DEG C of scope, and 500-600 DEG C can be heated to, complete pyrolytic process.
B. being pyrolyzed the oil gas of generation, by the communication member arranged on the heat insulation brick wall of described reactor, enter grain bed dust arrester, after grain bed dust arrester dedusting, clean oil gas enters back into the cracking room of described reactor.
According to embodiments of the invention, heat insulation brick wall is arranged in reactor, preferably, it is positioned at the 2/3 of reactor transverse width, the thickness of heat insulation brick wall is 50-150mm, heat insulation brick wall is vertically through in reactor, the inner space of reactor is separated into pyrolysis chamber and cracking room, this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, the oil gas that pyrolysis chamber produces, enter grain bed dust arrester, after grain bed dust arrester dedusting, clean oil gas enters back into cracking room and carries out deep pyrolytic, reduce rear end dedusting pressure, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule.Thus, two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.According to embodiments of the invention, communication member can be on insulating brick wall longitudinal length, is positioned at the opening of lower position.Grain bed dust arrester, described grain bed dust arrester is fixing with the described opening of described heat insulation brick wall to be connected, and the side that described grain bed dust arrester is positioned at described pyrolysis chamber extends horizontally and to described pyrolysis chamber, for the oil gas that described pyrolysis chamber is produced, by described grain bed dust arrester, it is passed into described cracking room.Concrete, described grain bed dust arrester is positioned on the side of side, pyrolysis chamber and arranges the pore area with multiple hole, the bottom surface that described grain bed dust arrester is positioned at side, pyrolysis chamber is provided with dust outlet, and the side surface upper part that described grain bed dust arrester is positioned at cracking room side is provided with for described dust arrester is carried out the blow valve port of blowback, bottom is provided with pyrolysis gas outlet.Preferably, the height of described grain bed dust arrester is 200-2000mm, and width is 100-500mm, and the height of described pore area is 150-1500mm, a diameter of 1-30mm in described hole；Preferably, described grain bed dust arrester is positioned at the top of side, pyrolysis chamber is inclined design, it is simple to pyrolysis material falls；Preferably, described grain bed dust arrester built with filter medium high for 1mm-20mm, preferably perlite, sandstone, spherical ceramic particles etc..In some embodiments of the invention, the oil gas that pyrolysis produces, fixes the described grain bed dust arrester being connected, after carrying out dust removal process in pore area by brick wall lower openings heat insulation with reactor, obtain the pyrolysis gas of cleaning, enter into cracking room through pyrolysis gas outlet.When after plant running a period of time, nitrogen can be passed through blow valve port and grain bed dust arrester is carried out blowback, it is ensured that the dust removing effects of grain bed, the dust that blowback goes out is discharged from grain bed dust arrester lower left dust outlet or left side pore area, fall into pyrolysis chamber, cold slag spiral discharge.Thus, the oil gas that pyrolysis chamber produces, enter grain bed dust arrester, after dedusting, obtain the oil gas of cleaning, thus reduce the dedusting pressure of subsequent technique.
The oil gas of the most described cleaning completes thermal cracking processes in described cracking room, produces cracking gas.
According to embodiments of the invention, in described cracking room, distributed at least described heat accumulation type radiant tube, it is preferred that described at least heat accumulation type radiant tube is uniformly distributed.The oil gas that heat accumulation type radiant tube can be effective to cracking is indoor heats so that it is carry out heat scission reaction.In some currently preferred embodiments of the present invention, clean oil gas is heated to 650-900 DEG C by the heat accumulation type radiant tube in reactor cracking room, specifically, can be 650-900 DEG C by the temperature of gas valve control heat accumulation type radiant tube tube wall, clean oil gas is heated to the most rapidly 650-900 DEG C, complete thermal cracking processes, thus, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, produce substantial amounts of cracking gas, avoiding and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
The most described cracking gas is discharged by cracking gas outlet, enters in spray column, described cracking gas is carried out purified treatment after ceramic filter carries out dust removal process.
According to embodiments of the invention, be connected with cracking gas outlet is ceramic filter, described ceramic filter is also connected with spray column, wherein, described ceramic filter is that described spray column is for the cracking gas after dedusting is carried out washing, purifying process for the cracking gas that cracking gas outlet is discharged is carried out dust removal process effectively.Concrete, cracking gas is exported by cracking gas, enters udst separation in ceramic filter, subsequently into washing, purifying in spray column, cracking gas after being purified, thus avoid the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized junked tire utilizes.
The most purified clean cracking gas, in combustion gas air-introduced machine enters fuel cartridge, stores.
According to embodiments of the invention, be connected with spray column is fuel cartridge, and described fuel cartridge is for storing cracking gas, and the cracking gas after purification sends into fuel cartridge through combustion gas air-introduced machine, stores.
Embodiment one:
(1) junked tire being crushed to granularity≤20mm enters thermal storage type moving bed reactor 3 through feeder 2 in loading hopper 1, and moving-burden bed reactor 3 is insulated brick wall and is divided into pyrolysis chamber and cracking room.
(2) being evenly arranged unidirectional heat accumulation type radiant tube in pyrolysis chamber, tube wall temperature utilizes gas control valve to control 500-700 DEG C of scope, and junked tire stops 1-50 minute the most from top to bottom, and is heated to 500-600 DEG C, completes pyrolytic process.
(3) oil gas that pyrolysis produces, opening by the heat insulation brick wall of reactor lower part, enter grain bed dust arrester, after grain bed dust arrester dedusting, clean oil gas enters back into the cracking room of described reactor, cracking room has been evenly arranged unidirectional heat accumulation type radiant tube, tube wall temperature utilizes gas control valve to control 650-900 DEG C of scope, clean oil gas is heated to 650-900 DEG C in cracking room, complete thermal cracking processes, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, produce substantial amounts of cracking gas, avoid the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
(4) cracking gas passes through reactor outlet, enters dedusting in ceramic filter 4, and the cracking gas after dedusting enters washing in spray column 5 and purifies further, and the clean cracking gas after washing sends into fuel cartridge 7 through combustion gas blower fan 6, can be used for producing the products such as artificial natural gas.
(5) semicoke that junked tire pyrolysis produces, sends into gasification furnace 8 by conveying worm 9, and gasification gas can be supplied to radiant tube burning, and the lime-ash after gasification is discharged.
(6) flue gas that heat accumulation type radiant tube burning produces, enters waste heat boiler 10 and reclaims heat, produce high-quality steam.
Inventor finds, system architecture according to embodiments of the present invention is simple, and easy to operate, uniformity of temperature profile, heating effect is good.Reactor is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis produces, enter grain bed dust arrester, oil gas is after dust removal by filtration, and clean oil gas enters into cracking room, reduces the dedusting pressure of subsequent technique, the tar molecules of big molecule is cracked into the gaseous hydrocarbons of little molecule, producing substantial amounts of cracking gas, thus avoid the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized junked tire utilizes.Further, this system is provided with pyrolysis chamber and cracking room in a body of heater so that two kinds of operations can be carried out in a body of heater, unite two into one, saves construction cost and floor space.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique and heats without gas, solid heat carrier, simplifies system process while improve the thermal efficiency of reactor.
Utilizing and process junked tire from the pyrolysis of dedusting type junked tire and cracking system, the basic data of raw material is shown in Table 1.
Table 1: junked tire basic data
Utilizing this reaction system to process junked tire, the gas products productivity obtained is 55%, and pyrolytic tar almost all is cracked into gaseous products, and factor of created gase is high.In the cracking gas of this system output, dust content is less than 1%, and gas more cleans.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more this feature.
In the present invention, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, what the schematic representation to above-mentioned term was not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, it is not considered as limiting the invention, above-described embodiment can be changed, revises, replace and modification, simultaneously for one of ordinary skill in the art by those of ordinary skill in the art within the scope of the invention, according to the thought of the application, the most all will change.
Claims (10)
1. one kind is pyrolyzed and cracking system from dedusting type junked tire, it is characterised in that including:
Loading hopper；
Feeder, described feeder is connected with described loading hopper；
Pyrolysis and cracking reactor, including: charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, and the outlet of described cracking gas is arranged on the sidewall of described cracking room；And:
Heat accumulation type radiant tube, described heat accumulation type radiant tube is along the short transverse multi-tier arrangement of described reactor inside described pyrolysis chamber and described cracking room, and every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction；
Heat insulation brick wall, described heat insulation brick wall is arranged at the 2/3 of described reactor transverse width, vertically through in described reactor, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room；
Communication member, described communication member is on described heat insulation brick wall longitudinal length, is positioned at the opening of lower position, for being connected with described cracking room described pyrolysis chamber；
Grain bed dust arrester, described grain bed dust arrester is fixing with the described opening of described heat insulation brick wall to be connected, and the side that described grain bed dust arrester is positioned at described pyrolysis chamber extends horizontally and to described pyrolysis chamber, for the oil gas that described pyrolysis chamber is produced, by described grain bed dust arrester, it is passed into described cracking room；
Ceramic filter, described ceramic filter one end is connected with the outlet of described cracking gas, and the other end is connected with described spray column；
Spray column, described spray column is connected with described ceramic filter；
Fuel cartridge, described fuel cartridge is connected with described spray column.
System the most according to claim 1, it is characterized in that, described grain bed dust arrester is positioned on the side of side, pyrolysis chamber and arranges the pore area with multiple hole, the bottom surface that described grain bed dust arrester is positioned at side, pyrolysis chamber is provided with dust outlet, and the side surface upper part that described grain bed dust arrester is positioned at cracking room side is provided with for described dust arrester is carried out the blow valve port of blowback, bottom is provided with pyrolysis gas outlet.
System the most according to claim 2, it is characterised in that the thickness of described heat insulation brick wall is 50-150mm；The height of described grain bed dust arrester is 200-2000mm, and width is 100-500mm；The height of described pore area is 150-1500mm, a diameter of 1-30mm in described hole.
4. according to the system according to any one of claim 1-3, it is characterised in that described grain bed dust arrester is embedded in described opening；It is inclined design that described grain bed dust arrester is positioned at the top of side, pyrolysis chamber.
5. according to the system according to any one of claim 1-3, it is characterised in that farther including combustion gas air-introduced machine, wherein, described combustion gas air-introduced machine one end is connected with the outlet of described spray column, and the other end is connected with described fuel cartridge import.
6., according to the system according to any one of claim 1-3, it is characterised in that also include gasification furnace, described gasification furnace is connected with fuel gas inlet and the semicoke conveying device of described heat accumulation type radiant tube respectively；Also include that waste heat boiler, described waste heat boiler are connected with the exhanst gas outlet of described heat accumulation type radiant tube.
7. according to the system according to any one of claim 1-3, it is characterised in that described grain bed dust arrester is built with filter medium high for 1mm-20mm；Described filter medium is perlite, sandstone or spherical ceramic particles.
8. according to the system according to any one of claim 1-3, it is characterised in that described loading hopper is connected with described charging aperture by described feeder；And also including that semicoke exports, the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveying device.
9. the method that the system utilized according to any one of claim 1-8 carries out junked tire pyrolysis and cracking, it is characterised in that comprise the following steps:
A. waste tyre particle is joined in reactor by charging aperture, in the pyrolysis chamber of described reactor, complete pyrolytic process；
B. being pyrolyzed the oil gas of generation, after carrying out dust removal process by the grain bed dust arrester arranged on the heat insulation brick wall of described reactor, clean oil gas enters into the cracking room of described reactor；
The oil gas of the most described cleaning completes thermal cracking processes in described cracking room, produces cracking gas；
The most described cracking gas enters in spray column by cracking gas outlet, and described cracking gas is carried out purified treatment；
The most purified clean cracking gas, in combustion gas air-introduced machine enters fuel cartridge, stores.
Method the most according to claim 9, it is characterized in that, in described step a, the described waste tyre particle described charging aperture from described reactor top joins described reactor, and broken up by the heat accumulation type radiant tube in described reactor, pyrolysis char exports from the semicoke of described reactor bottom and discharges；In described step a, described waste tyre particle is heated to 500-600 DEG C by the described heat accumulation type radiant tube in described reactor pyrolysis chamber, and in described step b, described pyrolysis oil gas is heated to 650-900 DEG C by the described heat accumulation type radiant tube in described reactor cracking room；Preferably, the granularity of described waste tyre particle is below 20mm.
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