CN100537062C - Cold quenching treatment method of waste antomobile tyre - Google Patents
Cold quenching treatment method of waste antomobile tyre Download PDFInfo
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- CN100537062C CN100537062C CNB2006100154857A CN200610015485A CN100537062C CN 100537062 C CN100537062 C CN 100537062C CN B2006100154857 A CNB2006100154857 A CN B2006100154857A CN 200610015485 A CN200610015485 A CN 200610015485A CN 100537062 C CN100537062 C CN 100537062C
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- tire
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The waste tyre cold quenching process belongs to the field of solid waste treating pyrolysis technology. The process includes pyrolysis of waste tyre in smelting furnace at 250 450 deg.c, cold quenching in cooling water tank at 1-70 deg.c, taking out and draining, beating or extruding to crush and separate rubber from steel wire, coking with the separated organic matter and reutilizing the steel wire. The said process separates steel from rubber effectively at low cost to utilize waste tyre resource.
Description
Technical field
The present invention relates to a kind of cold quenching processing method of waste tire of automobile, belong to the pyrolytic technique of solid waste process field.
Background technology
Along with the develop rapidly of auto industry, China's junked tire storage capacity is more and more, and the damaged tire of enormous amount is increasing to the pressure that environment causes.Junked tire is directly stacked not only and is taken up an area of because it has very strong heat resistanceheat resistant, anti-machinery, is difficult to degraded, and initiation fire is called as " black pollution " easily.How with junked tire resource, minimizing, innoxious, prevent the pollution of the environment and be not only a world-famous puzzle, while is along with the shortage of tire industry raw material oil, natural rubber resource, the recovery of junked tire, utilization also are related to the strategic issue of global sustainable development, also are the new problems of China's renewable resource utilization.
At present, the processing of junked tire and the technique direction of resource mainly contain the preparation rubber powder, and pyrogenation oil refining directly burns etc.At present, the waste tire of automobile method for preparing rubber powder has the breaking method after normal temperature mechanical crushing method or low temperature (freezing as liquid nitrogen frozen or utmost point cold air) the junked tire modification.Normal temperature crushing up is meant at normal temperatures, utilizes mechanical shear stress that film is cut, pushes, and waste rubber powder is broken into a kind of method of rubber powder.This method has following shortcoming usually: toughness is bigger during junked tire normal temperature, and it is big to pulverize energy consumption, and efficient is low, is difficult to produce meticulous powder, produces a large amount of heats and makes the aging distortion of rubber powder, and quality variation, its advantage are that equipment is simple, small investment, and cost is low.The normal temperature breaking method is adopted in the present stage pulverizing of domestic junked tire mostly.The cryogenic freezing comminuting method is to utilize rubber to be undertaken by the characteristic that elastomeric material changes glass embrittlement material into when low temperature.The U.S. nineteen forty-seven successful Application liquid nitrogen frozen technology rubber has been made rubber powder.Because freezing pulverizing rubber powder particle size range is wide, has many characteristics, its application enlarges fast.The freezing crushing technology of waste old is that the utilization of scrap rubber opens up a new way.This technical method belongs to physical crushing, does not produce new pollution, helps protecting environment.But because of liquid nitrogen costs an arm and a leg, production cost is high-leveled and difficult to promote.China has report to adopt air to carry out cryogenic freezing pulverizing waste rubber as refrigerant recently, is characterized in not being subjected to environmental limitations, and energy consumption will be well below the liquid nitrogen frozen technology, and cost is low.But freezing degree is low, and the practical application difficulty is big.Be easy to generate noise and poisonous, harmful waste gas, secondary waste water pollution in the reclaimed rubber process, have a strong impact on ecological environment, harm humans health.Simultaneously the aspect that effectively utilizes of reclaimed rubber also exists the problem of outlet that quality problems and quantity are brought.
Since the intensity and the toughness of tire, and the separating difficulty of rubber and steel wire wherein is big, so cost height, the operation easier pulverized are bigger.Junked tire can extract the fuel gas with high heating value through thermal cracking, is rich in valuable chemical products such as the oil of aromatic hydrocarbons and carbon black.Researcher who has and industrial quarters have attempted tire integral body is put into pyrolysis in the pyrolysis oven, and at high temperature rubber separates with steel wire after melting, and reclaim steel wire, and the rubber pyrolysis becomes pyrolysis gas, the method that pyrolysis oil and carbon black utilize or further handle.At high temperature the carbon black of Xing Chenging is easily pulverized and is convenient to further utilization.But at high temperature operate not only processing cost height, the pyrolysis G﹠O of generation is many, because complicated component is easy to generate a large amount of poisonous, pernicious gas, must be equipped with strict environmental practice and just can carries out, so the difficulty of utilization and processing is bigger.
Make a general survey of existing processing method, common problem is a processing procedure cost height, produces secondary pollution, and the resource reutilization difficulty is big.Therefore the low-cost processes of junked tire, the environmental protection difficult problem that free of contamination resource becomes countries in the world are explored a kind of low cost, and the tire processing method that is easy to resource just more shows important.
Summary of the invention
The cold quenching processing method that the purpose of this invention is to provide a kind of waste tire of automobile, this procedure cost is low, does not produce secondary pollution, has realized resource reutilization.
The present invention is realized by following technical proposals, adopts melting furnace, the cold-quench tank that comprises the strap clamp cover, the device of fishing for device, breaker and combustion furnace, carries out the method for the cold quenching processing of waste tire of automobile, it is characterized in that comprising following process:
By conveyer automobile junked tire 1 being sent into normal pressure or pressure-fired, furnace temperature is pyrolysis in the melting furnace 2 between 250 ℃ to 450 ℃, stopping made tire be subjected to thermal softening after 2 to 200 minutes, waste tire of automobile after softening is got rid of through the melting furnace bottom, and enter fast in the cold-quench tank 3 that fills cooling water and cool off suddenly, cold quenching is to 1-70 ℃, and cooling water recycles by the cooling tower cooling in the cold-quench tank; The pyrolysis gas 8 that melting furnace produces enters the combustion furnace burning from combustion furnace 9 bottoms, the hot flue gas 11 that produces after the combustion furnace burning enters melting furnace chuck layer; The tire that cold quenching is crossed is pulled out with the device 4 of fishing for of screen apparatus or uncinus, and the breaker 5 of delivering to squash type by conveyer belt behind the draining or beaing formula is pulverized, and from wherein separating steel wire 6; The tire organic substance 7 of fragmentation is further used for coking, and the steel wire that obtains utilizes again as resource.
Above-mentioned melting furnace temperature is 330-400 ℃, and the time of staying of automobile junked tire in melting furnace is 10-60 minute, and cold quenching tire target temperature is 1 to 30 ℃.
Junked tire provided by the present invention reclaims breaking method and mainly comprises the waste tire of automobile softening process that is heated, and liquid medium is to the quick cold quenching process of softening tire, the shattering process of cold quenching junked tire.
One of key technology of the present invention is that the waste tire of automobile softening temperature that is heated is in the low temperature melt temperature scope of waste tire of automobile rubber, tire is more much lower than degree of pyrolysis in traditional high temperature pyrolysis process under this temperature, can reduce the rubber loss to the full extent, obtain more organic solid material, and the waste tire of automobile gas componant that obtains of being heated is a light component under this temperature, it is much simple that the component that composition higher temperatures pyrolytic technique obtains is wanted, and is easy to handle.
Two of key technology of the present invention is to be subjected to the waste tire of automobile after the thermal softening to enter fast to carry out chilling in the cooling medium water, thereby make tire embrittlement under the rapid cooling effect, make it carry out conventional mechanical easily and pulverize, realize effectively peeling off of rubber and bead wire.The cold quenching treatment technology of softening waste tire of automobile also is the most key part of the present invention.
Description of drawings
Fig. 1 is the schematic flow sheet of embodiment of the invention 1-4.
Among the figure: the 1-waste tire of automobile; The 2-melting furnace; The 3-cold-quench tank; 4-fishes for device; The 5-pulverizer; Steel wire after 6-separates; SOLID ORGANIC matter after 7-pulverizes; The 8-pyrolysis gas; The 9-combustion furnace; The 10-air; The 11-burning hot gas; Waste gas after 12-utilizes
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Embodiment 1.
As shown in Figure 1,1 automobile junked tire 1 (diameter of tyres is 0.5 meter, and thick is 0.2 meter) integral body is lain against in the melting furnace 2.Melting furnace is the stainless steel cylindrical shape melting furnace of customization, 1.2 meters of internal diameters, and dischargeable capacity is 1.1 cubic metres, tyre chuck, electric power heating.Melting furnace is with behind the electric power heat temperature raising to 330 ℃, and junked tire stops in stove and made it be subjected to thermal softening in 20 minutes.The hydrocarbon that produces in the thermoplastic process, alcohols, organic acid pyrolysis gas 8 enter combustion furnace 9 bottoms and mix after-combustion with air 10 from the melting furnace top.Softening tire is discharged from the melting furnace bottom, and enters fast the cold-quench tank 3 that fills 24 ℃ of water from the top, makes softening tire be quickly cooled to 35 ℃, reaches the cold quenching purpose.1.2 meters of cold quenching flute length, wide 1.2 meters, high 1 meter.Tire behind the cold quenching is fished for device 4 with silk screen to be pulled out, adopt hammering process 5 to carry out the fragmentation (rubber for tire thing particle size after cracking is 0.1 millimeter to 4 millimeters) of cold quenching tire behind the draining, and with sieve steel wire and fragmentation material are sieved, isolate the broken thing 7 of steel wire 6 and tire.The steel wire that obtains utilizes again, and tire is pulverized organic matter as the coking raw material.The combustion furnace volume is 1 liter a cylindrical steel container made (adopting asbestos to be incubated), hot flue gas 11 temperature that combustion furnace produces are 651 ℃, and, entering heat supply in melting furnace the chuck from the melting furnace bottom from the upper furnace derivation, the waste gas 12 after the utilization is discharged from stove top JO.The thermal chimney road adopts asbestos to be incubated.Fragmentation solid matter behind the waste tire of automobile cold quenching (not comprising steel wire) yield is 82%.
Device and flow process are with embodiment 1.Different is local as follows: the fusion furnace temperature is 350 ℃, and the time of staying is 13 minutes, and cooling water temperature is 15 ℃, and the cold quenching target temperature is 25 ℃, and hot flue gas 11 temperature that combustion furnace produces are 672 ℃.Fragmentation solid matter (not comprising steel wire) yield is 78%.
Device and flow process are with embodiment 1.Different is local as follows: 2 on tire, fusion furnace temperature are 250 ℃, and the time of staying is 60 minutes, and cooling water temperature is 25 ℃, and the cold quenching target temperature is 30 ℃, because pyrolysis tolerance is very little, and no combustion phenomena.Fragmentation solid matter (not comprising steel wire) yield is 93%.
Device and flow process are with embodiment 1.Different is local as follows: 2 on tire, fusion furnace temperature are 400 ℃, and the time of staying is 10 minutes, and cooling water temperature is 35 ℃, and the cold quenching target temperature is 45 ℃, and hot flue gas 11 temperature that combustion furnace produces are 692 ℃.Fragmentation solid matter (not comprising steel wire) yield is 65%.
Open and the waste tire of automobile processing method that proposes of the present invention, those skilled in the art can be by using for reference this paper content, and links such as appropriate change process route and parameter realize.Method of the present invention is described by preferred embodiment, and person skilled obviously can be changed or suitably change and combination method as herein described in not breaking away from content of the present invention, spirit and scope, realizes the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (2)
1. the cold quenching processing method of a waste tire of automobile, this method adopts the melting furnace that comprises the strap clamp cover, cold-quench tank, fish for device, the device of breaker and combustion furnace, carry out the method for the cold quenching processing of waste tire of automobile, it is characterized in that comprising following process: automobile junked tire (1) is sent into normal pressure or pressure-fired by conveyer, furnace temperature is the middle pyrolysis of the melting furnace (2) between 250 ℃ to 450 ℃, stopping made tire be subjected to thermal softening after 2 to 200 minutes, waste tire of automobile after softening is got rid of through the melting furnace bottom, and enter fast in the cold-quench tank (3) that fills cooling water and cool off suddenly, cold quenching is to 25-45 ℃, and cooling water recycles by the cooling tower cooling in the cold-quench tank; The pyrolysis gas (8) that melting furnace produces enters the combustion furnace burning from combustion furnace (9) bottom, and the hot flue gas (11) that produces after the combustion furnace burning enters melting furnace chuck layer; The tire that cold quenching is crossed is pulled out with the device (4) of fishing for of screen apparatus or uncinus, and the breaker (5) of delivering to squash type by conveyer belt behind the draining or beaing formula is pulverized, and from wherein separating steel wire (6); The tire organic substance (7) of fragmentation is further used for coking, and the steel wire that obtains utilizes again as resource.
2. by the cold quenching processing method of the described waste tire of automobile of claim 1, it is characterized in that the melting furnace temperature is 330-400 ℃, the time of staying of automobile junked tire in melting furnace is 10-60 minute, and cold quenching tire target temperature is 25 ℃ to 30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100154857A CN100537062C (en) | 2006-08-30 | 2006-08-30 | Cold quenching treatment method of waste antomobile tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100154857A CN100537062C (en) | 2006-08-30 | 2006-08-30 | Cold quenching treatment method of waste antomobile tyre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1911541A CN1911541A (en) | 2007-02-14 |
| CN100537062C true CN100537062C (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100154857A Expired - Fee Related CN100537062C (en) | 2006-08-30 | 2006-08-30 | Cold quenching treatment method of waste antomobile tyre |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526910A (en) * | 2015-01-06 | 2015-04-22 | 陈静 | Process of producing high-performance regenerated rubber through waste tires |
| CN108437294A (en) * | 2018-04-24 | 2018-08-24 | 德昌金锋橡胶有限公司 | A kind of abundant technique for decomposing waste tire |
| CN109332351B (en) * | 2018-09-10 | 2020-10-30 | 邢台国运工贸有限公司 | Environment-friendly waste rubber tire cracking device |
| CN109622567A (en) * | 2018-12-25 | 2019-04-16 | 山东安途制动材料有限公司 | A kind of method that the steel back of disc brake pad waste product is separated with friction material |
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| Publication number | Publication date |
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| CN1911541A (en) | 2007-02-14 |
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Granted publication date: 20090909 Termination date: 20120830 |