CN104073273A - Junked tire processing equipment and technology capable of preventing generation of dioxin - Google Patents
Junked tire processing equipment and technology capable of preventing generation of dioxin Download PDFInfo
- Publication number
- CN104073273A CN104073273A CN201410281021.5A CN201410281021A CN104073273A CN 104073273 A CN104073273 A CN 104073273A CN 201410281021 A CN201410281021 A CN 201410281021A CN 104073273 A CN104073273 A CN 104073273A
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- junked tire
- dioxin
- treatment facility
- prevents generation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 provides junked tire processing equipment and technology capable of preventing generation of dioxin. The junked tire process equipment comprises a raw material bin, a spiral conveyor for mixing and feeding, a preheating furnace, a cracking furnace and an oil/gas recovery device, wherein the raw material bin is sequentially connected with the spiral conveyor capable for mixing and feeding, the preheating furnace, the cracking furnace and the oil/gas recovery device, the preheating furnace sequentially comprises a heating section, a sealing section, a forward push section and a discharging section from the flowing direction of the raw materials, each of the heating section and the forward push section is provided with a spiral pusher, the spiral pushers in the heating section and the forward push section spiral in the same direction, and no spiral pusher is arranged in the sealing section. As the preheating furnace is provided with the sealing section without a spiral pusher, the sealing section is full filled with soft sticky material which forms an airtight'sealing wall', air is effectively prevented from entering the cracking furnace, and dioxin is not generated in processing of the junked tires.
Description
Technical field
The present invention relates to junked tire processing technology field, be specifically related to a kind of junked tire treatment facility and technique that prevents generation of dioxin.
Background technology
Along with developing rapidly of automotive industry, the problem of environmental pollution of junked tire is on the rise, and the recycling that how to realize junked tire becomes the emphasis of current research.Intermittent type revolution pyrolyzer and the continuous rotary pyrolyzer of adopting carry out thermo-cracking to realize the recycling of junked tire to junked tire more at present, but while adopting aforesaid device to carry out cracking to junked tire, because fill process inevitably can be brought part air into, make the intermediate product (as benzene, chlorine, chlorinated benzene etc.) producing in tire pyrolysis process to react and to give birth to into dioxin with the air one of bringing into.Er dioxin is to contain the chlorine-containing organic compounds that 2 or 1 oxygen link 2 phenyl ring, there is stronger toxicity, very big to environment and harm.
Focus mostly on for the research of junked tire treatment facility and technique at present less in the removal technical study of research of junked tire cracking process Dui dioxin, therefore, how to develop and a kind ofly can effectively prevent that the junked tire treatment facility of generation of dioxin and technique from becoming this area problem urgently to be resolved hurrily.
Summary of the invention
For the problems referred to above, one object of the present invention is to provide a kind of junked tire treatment facility, this junked tire treatment facility by arranging the seal section without screw impeller in preheating oven, make to be full of in seal section the material of soft plastic state, form closely air-locked " sealed wall ", thereby can effectively stop air to enter pyrolyzer, prevent the generation of junked tire treating processes Zhong dioxin.
Another object of the present invention is to provide a kind of junked tire treatment process that prevents generation of dioxin.
For achieving the above object, the invention provides a kind of junked tire treatment facility that prevents generation of dioxin, this junked tire treatment facility comprises raw material cabin, mix reinforced spiral conveyer, preheating oven, pyrolyzer and device for recovering oil and gas, wherein said raw material cabin connects successively and mixes reinforced spiral conveyer, preheating oven, pyrolyzer and device for recovering oil and gas, described preheating oven comprises heating zone successively from raw material flow direction, seal section, forward advances section and blanking section, described heating zone and described forward advance in section screw impeller are set respectively, and described heating zone advances the hand of spiral of the screw impeller in section identical with described forward, screw impeller is not set in described seal section.
Preferably, the length ratio of described heating zone, seal section, forward propelling section and blanking section is 17-21:0.5-1.5:0.5-3:0.5-3, more preferably 19:1:1.5:1.5.
Preferably, the end of described preheating oven arranges reverse propulsion section, and described reverse propulsion section is adjacent with described blanking section, and is provided with screw impeller, and described reverse propulsion section advances the hand of spiral of the screw impeller in section contrary with described forward.
Preferably, the length ratio of described heating zone, seal section, forward propelling section, blanking section and reverse propulsion section is 17-21:0.5-1.5:0.5-3:0.5-3:0.5-1.5, more preferably 19:1:1.5:1.5:1.
Preferably, described raw material cabin and described mixing arrange flexible star type sealing blanking device between reinforced spiral conveyer, in described flexible star type sealing blanking device, be provided with gusset, described gusset adopts flexible materials to make at the end engaging with the shell of flexible star type sealing blanking device, more preferably adopts tetrafluoroethylene to make.
Preferably, described preheating oven arranges far-infrared heating layer; More preferably, in the heating zone of described preheating oven, far-infrared heating layer is set.
Preferably, the temperature of described preheating oven is below 250 DEG C, preferably 230-245 DEG C.
Preferably, described heating zone end arranges oil gas vent.
Preferably, the reinforced spiral conveyer of described mixing arranges catalyst inlet and reuse high temperature carbon black entrance, is respectively used to add the high temperature carbon black producing after junked tire cracking catalyzer and junked tire cracking.
The present invention further provides a kind of junked tire treatment process, comprising: junked tire is processed as to the little blob of viscose with steel wire, then adopts junked tire treatment facility as above to process.
Dioxin is to contain the chlorine-containing organic compounds that 2 or 1 oxygen link 2 phenyl ring, has multiple isomer, but in various isomer all containing aerobic (O).The temperature that dioxin generates is 250-550 DEG C (optimal temperature is 300-500 DEG C), and its precursor comprises HCl, Cl
2, O
2and all kinds of chlorinated benzene etc.The precursor that produces dioxin in junked tire cracking process is mainly derived from the intermediate product producing in tire pyrolysis process, as benzene, chlorine and chlorinated benzene etc., due in the various isomer of dioxin all containing aerobic (O), therefore, if make junked tire cracking in the environment of anoxic, just can effectively stop the generation of dioxin.Based on this, junked tire treatment facility of the present invention by arranging the seal section without screw impeller in preheating oven, make to be full of in seal section the material of soft plastic state, form closely air-locked " sealed wall ", thereby can effectively stop air to enter pyrolyzer, make material cracking in the environment of anoxic, and then effectively avoided the generation of junked tire treating processes Zhong dioxin.
Compared with existing junked tire treatment facility and technique, junked tire treatment facility of the present invention and technique at least have the following advantages:
One, the present invention adds junked tire material the material of the soft plastic state of thermosetting in preheating oven, by the seal section without screw impeller is set in preheating oven, make the material of soft plastic state be full of seal section, form closely air-locked " sealed wall ", thereby can effectively stop air to enter pyrolyzer, make junked tire can under the environment of anoxic, carry out cracking, thereby the generation that can effectively prevent junked tire cracking process Zhong dioxin (owing to carrying out cracking under the environment of anoxic, also contributes to reduce SO
2generation); In addition, the present invention, by the length ratio of heating zone in preheating oven, seal section, forward propelling section, blanking section and reverse propulsion section is reasonably set, can realize air-isolation well, avoids dioxin (and SO
2deng pollution gas) generation, be conducive to again promote material, make it enter smoothly pyrolyzer cracking;
Two, the present invention further arranges flexible star type sealing blanking device between raw material cabin and the reinforced spiral conveyer of mixing, the gusset of this flexible star type sealing blanking device adopts flexible materials to make at the end engaging with shell, can completely cut off preferably air, prevent that outside air from entering the reinforced spiral conveyer of mixing, while avoiding adopting common rigidity blanking device, due to the poor defect that causes part air to enter of blanking device stopping property, thereby contribute to reduce the generation of dioxin.
Brief description of the drawings
Fig. 1 is the schematic diagram of junked tire treatment facility of the present invention;
Fig. 2 is the diagrammatic cross-section of flexible star type sealing blanking device in junked tire treatment facility of the present invention.
Description of reference numerals
1 raw material cabin
11 raw material cabin entrances
2 sealing blanking devices
21 shells
22 gussets
221 flexible sealing materials
222 springs
23 axles
3 mix reinforced spiral conveyer
31 catalyst inlets
32 reuse high temperature carbon black entrances
4 preheating ovens
41 heating zones
42 seal sections
43 forwards advance section
44 blanking sections
45 reverse propulsion sections
41 ', 43 ', 45 ' screw impeller
46 zones of heating
47 oil gas vents
5 pyrolyzer
6 device for recovering oil and gas
Embodiment
Referring to specific embodiment, the present invention is described.It will be appreciated by those skilled in the art that these embodiment are only for the present invention is described, the scope that it does not limit the present invention in any way.
As shown in Figure 1, junked tire treatment facility of the present invention comprises raw material cabin 1, mixes reinforced spiral conveyer 3, preheating oven 4, pyrolyzer 5 and device for recovering oil and gas 6, and wherein raw material cabin 1 connects successively and mixes reinforced spiral conveyer 3, preheating oven 4, pyrolyzer 5 and device for recovering oil and gas 6.Raw material cabin 1 arranges sealing blanking device 2 with mixing between reinforced spiral conveyer 3.Raw material cabin entrance 11 is set, for throwing in junked tire material on raw material cabin 1.Mix on reinforced spiral conveyer 3 catalyst inlet 31 and reuse high temperature carbon black entrance 32 are set, be respectively used to add the high temperature carbon black producing after junked tire cracking catalyzer and junked tire cracking, by adding the high temperature carbon black producing after junked tire cracking, can prevent from being heated on the one hand the mutual felt jam preheating oven 4 of material of soft plastic state, the waste heat that can make full use of on the other hand the high temperature carbon black of recovery heats material, realizes the recycle of energy.Preheating oven 4 comprises that from raw material flow direction heating zone 41, seal section 42, forward advance section 43, blanking section 44 and reverse propulsion section 45 successively, wherein heating zone 41, forward advance in section 43 and reverse propulsion section 45, arrange respectively screw impeller 41 ', 43 ' and 45 ', it act as spiral promotion material and advances, screw impeller is not set in seal section 42, wherein screw impeller 41 ' with 43 ' the hand of spiral identical, and screw impeller 45 ' the hand of spiral and screw impeller 41 ' and 43 ' the hand of spiral contrary.Heating zone 41, seal section 42, forward advances section 43, the length of blanking section 44 and reverse propulsion section 45 is respectively s1 (between the end and A of preheating oven 4), s2 (between A and B), s3 (between B and C), s4 (between C and D) and s5 (between the end of D and preheating oven 4), wherein s1, s2, s3, the ratio of s4 and s5 is 17-21:0.5-1.5:0.5-3:0.5-3:0.5-1.5, preferably 19:1:1.5:1.5:1, by s1 is set, s2, s3, ratio between s4 and s5, air-isolation well, avoid the generation of dioxin, be conducive to again promote material, make it enter smoothly pyrolyzer cracking.Heating zone 41 arranges zone of heating 46, preferably far-infrared heating layer.The temperature setting of preheating oven 4 is set to below 250 DEG C, preferably 230-245 DEG C, and because the generation temperature of dioxin is 250-550 DEG C, therefore, junked tire material can't produce dioxin in preheating oven 4 after heating zone 41 heating.In fact, material enters preheating oven 4 from mixing reinforced spiral conveyer 3, first pushed away and travelling forward by screw impeller 41 ' spiral, and heated at the volley, in the time that material is pushed to seal section 42 (A), due to the power that there is no screw impeller in seal section 42 and material is lost advance, do not readvance, and pile up at seal section 42 places, and now material has been heated to be the material of soft plastic state, the material of this soft plastic state is cumulative at seal section 42 places, material below is constantly pushed away again, finally make the material of soft plastic state be full of seal section 42, form closely air-locked " sealed wall ", should " sealed wall " can play the effect of isolated air well, thereby avoid air to enter pyrolyzer.But along with material below constantly pushes away, " sealed wall " still can be pushed and move forward, enter subsequently forward and advance section 43, by screw impeller 43 ' promotion forward, enter blanking section 44, enter subsequently pyrolyzer 5, the oil gas material that material obtains after pyrolyzer 5 cracking enters device for recovering oil and gas 6, to recycle.Until cracking finishes, material is cracking in the environment of airtight anoxia completely, thereby has avoided the generation of tire pyrolysis Guo journey Zhong dioxin.
In addition, due to the easy felt jam preheating oven of material of soft plastic state, for making material more easily enter pyrolyzer, screw impeller 45 in the present invention's reverse propulsion section 45 ' the hand of spiral be set to forward advance screw impeller 43 in section 43 ' opposite direction, thereby being more conducive to the material of soft plastic state to be pushed to blanking section and then to enter pyrolyzer (it should be noted that herein, reverse propulsion section 45 and wherein screw impeller 45 ' just make material enter pyrolyzer setting for being more convenient for, and nonessential, can reverse propulsion section 45 be set according to practical situation yet, now blanking section 44 is arranged on preheating oven 4 ends), in addition, at the end of heating zone 41, oil gas vent 47 is set, this oil gas vent 47 is set to negative pressure outlet, the oil gas that can in time junked tire material be produced in pyrolytic process is taken away.
The star-like sealing blanking device of sealing blanking device 2 preferred flexible of the present invention, as shown in Figure 2, flexible star type sealing blanking device of the present invention comprises shell 21, gusset 22 and axle 23, the internal space that wherein flexible star type is sealed blanking device by gusset 22 separates, gusset 22 comprises flexible sealing material 221 and spring 222, wherein flexible sealing material 221 can be realized and engaging preferably with shell 21, make flexible star type sealing blanking device there is good stopping property, can completely cut off preferably air, prevent that outside air from entering the reinforced spiral conveyer 3 of mixing, described flexible sealing material 221 is preferably tetrafluoroethylene.In Fig. 2, the gusset quantity of flexible star type sealing blanking device just schematically, does not represent real quantity in addition, can select according to practical situation.
Below for junked tire treatment facility explanation junked tire treatment scheme of the present invention.First the little blob of viscose with steel wire into about 1～2cm by junked tire processing, then by incoming stock storehouse 1, feed(raw material)inlet 11, raw material is entered and is mixed reinforced spiral conveyer 3 by sealing blanking device 22 subsequently, in addition by mixing feed in raw material catalyst inlet 31 and the reuse high temperature carbon black entrance 32 of spiral conveyer 3, add respectively the high temperature carbon black producing after junked tire cracking catalyzer and junked tire cracking, then material enters preheating oven 4, after heating zone 41 heating of preheating oven 4, become the material of soft plastic state, the material of this soft plastic state is pushed into seal section 42, form closely air-locked " sealed wall ", after this enter forward and advance section 43, and by screw impeller 43 ' promotion forward, enter blanking section 44, enter subsequently pyrolyzer, until cracking finishes, material is cracking in the environment of airtight anoxia completely, thereby avoid the generation of cracking process Zhong dioxin.
Specific description of embodiments of the present invention above does not limit the present invention, and those skilled in the art can make according to the present invention various changes or distortion, only otherwise depart from spirit of the present invention, all should belong to the scope of claims of the present invention.
Claims (10)
1. one kind prevents the junked tire treatment facility of generation of dioxin, comprise raw material cabin, mix reinforced spiral conveyer, preheating oven, pyrolyzer and device for recovering oil and gas, wherein said raw material cabin connects successively and mixes reinforced spiral conveyer, preheating oven, pyrolyzer and device for recovering oil and gas, described preheating oven comprises heating zone successively from raw material flow direction, seal section, forward advances section and blanking section, described heating zone and described forward advance in section screw impeller are set respectively, and described heating zone advances the hand of spiral of the screw impeller in section identical with described forward, screw impeller is not set in described seal section.
2. the junked tire treatment facility that prevents generation of dioxin according to claim 1, is characterized in that, it is 17-21:0.5-1.5:0.5-3:0.5-3 that described heating zone, seal section, forward advance the length ratio of section and blanking section, preferably 19:1:1.5:1.5.
3. the junked tire treatment facility that prevents generation of dioxin according to claim 1 and 2, it is characterized in that, the end of described preheating oven arranges reverse propulsion section, described reverse propulsion section is adjacent with described blanking section, and be provided with screw impeller, described reverse propulsion section advances the hand of spiral of the screw impeller in section contrary with described forward.
4. the junked tire treatment facility that prevents generation of dioxin according to claim 3, it is characterized in that, it is 17-21:0.5-1.5:0.5-3:0.5-3:0.5-1.5 that described heating zone, seal section, forward advance the length ratio of section, blanking section and reverse propulsion section, preferably 19:1:1.5:1.5:1.
5. according to the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-4, it is characterized in that, described raw material cabin and described mixing arrange flexible star type sealing blanking device between reinforced spiral conveyer, in described flexible star type sealing blanking device, be provided with gusset, described gusset adopts flexible materials to make at the end engaging with the shell of flexible star type sealing blanking device, preferably adopts tetrafluoroethylene to make.
6. according to the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-5, it is characterized in that, described preheating oven arranges far-infrared heating layer.
7. according to the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-6, it is characterized in that, the temperature of described preheating oven is below 250 DEG C, and preferably 230-245 DEG C, for by the soft plastic state of pre-junked tire material thermosetting.
8. according to the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-7, it is characterized in that, described heating zone end arranges oil gas vent.
9. according to the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-8, it is characterized in that, the reinforced spiral conveyer of described mixing arranges catalyst inlet and reuse high temperature carbon black entrance, is respectively used to add the high temperature carbon black producing after junked tire cracking catalyzer and junked tire cracking.
10. a junked tire treatment process that prevents generation of dioxin, comprising: junked tire is processed as to the little blob of viscose with steel wire, then adopts the junked tire treatment facility that prevents generation of dioxin described in any one in claim 1-9 to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281021.5A CN104073273A (en) | 2014-05-12 | 2014-06-20 | Junked tire processing equipment and technology capable of preventing generation of dioxin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199607.7 | 2014-05-12 | ||
| CN201410199607 | 2014-05-12 | ||
| CN201410281021.5A CN104073273A (en) | 2014-05-12 | 2014-06-20 | Junked tire processing equipment and technology capable of preventing generation of dioxin |
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| Publication Number | Publication Date |
|---|---|
| CN104073273A true CN104073273A (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410281021.5A Pending CN104073273A (en) | 2014-05-12 | 2014-06-20 | Junked tire processing equipment and technology capable of preventing generation of dioxin |
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| CN (1) | CN104073273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423630A (en) * | 2019-09-02 | 2019-11-08 | 云南添源环保科技股份有限公司 | A kind of waste tire thermal splitting system |
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Application publication date: 20141001 |