CN104526895A - Method for producing regenerated rubber by vulcanized rubber powder of waste tyres - Google Patents
Method for producing regenerated rubber by vulcanized rubber powder of waste tyres Download PDFInfo
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- CN104526895A CN104526895A CN201310309081.9A CN201310309081A CN104526895A CN 104526895 A CN104526895 A CN 104526895A CN 201310309081 A CN201310309081 A CN 201310309081A CN 104526895 A CN104526895 A CN 104526895A
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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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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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
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Abstract
A method for producing regenerated rubber by vulcanized rubber powder of waste tyres. According to the invention, starting from the properties of vulcanized rubber powder, a deep study is carried out on current regenerated rubber production process and the change of vulcanized rubber powder in S-S bond and C-S bond fracture, grafting modification, and blending modification, and the method provides that high-performance plasticization and functionalization of elastomeric materials can be realized by using the extrusion, shearing and kneading functions of a twin screw, and by concentrated utilization of chemical reaction of elastomer polymer, that is, functionalized and systematized special regenerated rubber suitable for application in different places can be prepared rapidly by melt blending modification through reaction extrusion with a twin-screw extruder. The method realizes pollution-free, nuisanceless, green, and environment-friendly production of regenerated rubber.
Description
Technical field
The present invention relates to a kind of method of producing reclaimed rubber with the vulcanized rubber powder of junked tire.
Background technology
The rubber consumption of China based on tire continues high growth; make China become scrap rubber the biggest in the world and produce state, the comprehensive utilization of waste old is the core of rubber industry recycling economy, for reduction China rubber sources external dependence degree; save fossil resources, protection of the environment is significant.Utilize physics, the method such as chemical or biological, opens scrap rubber three-dimensional crosslinked network, prepares the main mode that reclaimed rubber is current China scrap rubber cycling and reutilization.
At present, manufacture field is made at reclaimed rubber, usually waste rubber goods such as junked tire is processed into rubber powder, then desulfurization process is carried out to rubber powder, then the rubber powder after desulfurization is directly carried out refining treatment, the shortcoming of this method is piled into a pile through the rubber powder of desulfurization process can not dispel the heat in time, middle part still has higher temperature, and rubber powder is still carrying out desulphurization reaction, and rubber backbone is damaged, reclaimed rubber intensity and elongation at break cannot be kept, cause reclaimed rubber quality to decline.Simultaneously reclaimed rubber production process, the especially production of reclaimed rubber, apart from outside the improvement of secondary pollution, mainly its high pressure, high temperature working condition and react uncontrollable, the experiential operating method that structure difficulty is adjusted, product quality can not science be controlled.
Summary of the invention
Technical problem to be solved by this invention, is just to provide a kind of method of producing reclaimed rubber with the vulcanized rubber powder of junked tire.The present invention is from the character of vulcanized rubber powder, the deep production process that have studied current reclaimed rubber and vulcanized rubber powder are in the change of the fracture of S-S key, C-S key and graft modification, blending and modifying, the function of the extruding of proposition twin-screw, shearing, kneading, the more chemical reaction of focus utilization elastomer polymer, carry out the plasticizing of elastomeric material high-performance and functionalization, namely carry out melt blending modification by the method for double screw extruder reactive extrursion, functionalization, systematization can be prepared quickly and easily, meet the special reclaimed rubber of different applications.This method achieves reclaimed rubber and produces pollution-free, nuisanceless, environmental protection.
Solve above-mentioned first technical problem, the technical solution used in the present invention is:
Produce a method for reclaimed rubber with the vulcanized rubber powder of junked tire, comprise the following steps:
S1 tyre bead process: junked tire will be selected as raw materials for production, cut circle process to junked tire, the tyre bead cut obtains circle mouth steel wire and rubber after thread rolling;
The whole tire of S2 is broken: the circle mouth steel wire obtained and rubber whole tyre breaking machine are carried out the fragmentation of whole tire, obtain the block rubber of 50mm × 50mm;
S3 blob of viscose fine powder is broken: the block rubber of 50mm × 50mm is carried out thin pulverization process by rubber breaker, obtains the micelle of below 1.4mm, and wherein the micelle of more than 1.4mm returns rubber breaker and again pulverizes;
The micelle of below 1.4mm is carried out three magnetic separation through cylinder roll-type permanent magnetic separator by S4, and magnet drum field intensity 800-1000 mT, separates the steel wire mixed in micelle, obtains thick micelle;
Thick micelle is screened by 30 order classifying screens by S5, obtains thin micelle;
S6 abrasive dust process: after thin micelle is carried out fiber separation by defibrator, grind with 60-80 object fine pulverizer, obtain thick rubber powder;
S7 rubber powder post processing: thick rubber powder 50 order classifying screens are screened, obtains vulcanized rubber powder;
S8 feeding prepares process: vulcanized rubber powder and the softening agent of 10-12% quality and the activator of 15-18% quality are mixed together, and be stirred to even in mixer, rotating speed is that 30-40 turns/min;
S9 plastics processing: the vulcanized rubber powder after stirring is put into dual channel parallel dual-screw extruding machine, and temperature controls at 200-250 DEG C, and under pressure reaches 3-5MPa condition, the time is 30-40min, obtains plasticized rubber powder;
The blended kneading of S10: plasticized rubber powder is pushed kneading runner in dual channel parallel dual-screw extruding machine, chilling temperature controls at 120-180 DEG C, under pressure reaches 2-3MPa condition, obtains reclaimed rubber by kneading and mixing process.
The micelle of described below 1.4mm carries out three magnetic separation through cylinder roll-type permanent magnetic separator, and the best field intensity of magnet drum is 800mT.
Described softening agent is the one in alkane, cycloalkane and aromatic hydrocarbons.
Described activator is the one in ethylenediamine phosphate, phosphoric acid propane diamine, dimethylbenzene and prodan.
Described vulcanized rubber powder and softening agent and activator are mixed together stirring, and its mixer optimum speed is 30 turns/min.
Described dual channel parallel dual-screw extruding machine is the extruder of full engagement system.
Dual channel parallel dual-screw extruding machine put into by described stirring after cure rubber powder, and optimum temperature is 250 DEG C, pressure 5MPa, and the time is 40min.
Described plasticized rubber powder pushes kneading runner in dual channel parallel dual-screw extruding machine, and optimum temperature is 180 DEG C, pressure 3MPa.
Beneficial effect: the present invention is while the production technology furtheing investigate reclaimed rubber and rubber and quality requirement, macromolecular material polymer is used in the reactive extrursion process of twin screw techniques and flow and mix, reaction and form, product structure and performance, extrude and shearing etc. is studied, find that its performance of processing can meet vulcanized rubber powder processing on the twin screw extruder, and by high pressure that it produces in process, shear, tear, add the control of temperature, segmentation kneading, control the reaction time simultaneously, vulcanized rubber can be reached restore to the part of plasticized rubber, meet the instructions for use of rubber production.The present invention is from the character of vulcanized rubber powder, the deep production process that have studied current reclaimed rubber and vulcanized rubber powder are in the change of the fracture of S-S key, C-S key and graft modification, blending and modifying, the function of the extruding of proposition twin-screw, shearing, kneading, the more chemical reaction of focus utilization elastomer polymer, carry out the plasticizing of elastomeric material high-performance and functionalization, namely carry out melt blending modification by the method for double screw extruder reactive extrursion, functionalization, systematization can be prepared quickly and easily, meet the special reclaimed rubber of different applications.This method achieves reclaimed rubber and produces pollution-free, nuisanceless, environmental protection.
Detailed description of the invention
Embodiment one, a kind of method of producing reclaimed rubber with the vulcanized rubber powder of junked tire, comprises the following steps:
S1 tyre bead process: junked tire will be selected as raw materials for production, cut circle process to junked tire, the tyre bead cut obtains circle mouth steel wire and rubber after thread rolling;
The whole tire of S2 is broken: the circle mouth steel wire obtained and rubber whole tyre breaking machine are carried out the fragmentation of whole tire, obtain the block rubber of 50mm × 50mm;
S3 blob of viscose fine powder is broken: the block rubber of 50mm × 50mm is carried out thin pulverization process by rubber breaker, obtains the micelle of below 1.4mm, and wherein the micelle of more than 1.4mm returns rubber breaker and again pulverizes;
The micelle of below 1.4mm is carried out three magnetic separation through cylinder roll-type permanent magnetic separator by S4, and magnet drum field intensity 800 mT, separates the steel wire mixed in micelle, obtains thick micelle;
Thick micelle is screened by 30 order classifying screens by S5, obtains thin micelle;
S6 abrasive dust process: after thin micelle is carried out fiber separation by defibrator, grind with 60-80 object fine pulverizer, obtain thick rubber powder;
S7 rubber powder post processing: thick rubber powder 50 order classifying screens are screened, obtains vulcanized rubber powder;
S8 feeding prepares process: vulcanized rubber powder and the softening agent of 10-12% quality and the activator of 15-18% quality are mixed together, and be stirred to even in mixer, rotating speed is 30 turns/min;
S9 plastics processing: the vulcanized rubber powder after stirring is put into dual channel parallel dual-screw extruding machine, and temperature controls at 250 DEG C, and under pressure reaches 5MPa condition, the time is 40min, obtains plasticized rubber powder;
The blended kneading of S10: plasticized rubber powder is pushed kneading runner in dual channel parallel dual-screw extruding machine, chilling temperature controls at 180 DEG C, under pressure reaches 3MPa condition, obtains reclaimed rubber by kneading and mixing process.
Embodiment two, itself and embodiment one difference are only: the micelle of below 1.4mm is carried out three magnetic separation through cylinder roll-type permanent magnetic separator, magnet drum field intensity 1000 mT.
Embodiment three, itself and embodiment two difference are only: vulcanized rubber powder and the softening agent of 10-12% quality and the activator of 15-18% quality are mixed together, and be stirred in mixer evenly, rotating speed is 40 turns/min.
Embodiment four, itself and embodiment three difference are only: the vulcanized rubber powder after stirring is put into dual channel parallel dual-screw extruding machine, and temperature controls at 200 DEG C, and under pressure reaches 3MPa condition, the time is 30min, obtains plasticized rubber powder.
Embodiment five, itself and embodiment four difference are only: plasticized rubber powder is pushed kneading runner in dual channel parallel dual-screw extruding machine, and chilling temperature controls at 120 DEG C, under pressure reaches 2MPa condition, obtain reclaimed rubber by kneading and mixing process.
Claims (8)
1. produce a method for reclaimed rubber with the vulcanized rubber powder of junked tire, comprise the following steps:
S1 tyre bead process: junked tire will be selected as raw materials for production, cut circle process to junked tire, the tyre bead cut obtains circle mouth steel wire and rubber after thread rolling;
The whole tire of S2 is broken: the circle mouth steel wire obtained and rubber whole tyre breaking machine are carried out the fragmentation of whole tire, obtain the block rubber of 50mm × 50mm;
S3 blob of viscose fine powder is broken: the block rubber of 50mm × 50mm is carried out thin pulverization process by rubber breaker, obtains the micelle of below 1.4mm, and wherein the micelle of more than 1.4mm returns rubber breaker and again pulverizes;
The micelle of below 1.4mm is carried out three magnetic separation through cylinder roll-type permanent magnetic separator by S4, and magnet drum field intensity 800-1000 mT, separates the steel wire mixed in micelle, obtains thick micelle;
Thick micelle is screened by 30 order classifying screens by S5, obtains thin micelle;
S6 abrasive dust process: after thin micelle is carried out fiber separation by defibrator, grind with 60-80 object fine pulverizer, obtain thick rubber powder;
S7 rubber powder post processing: thick rubber powder 50 order classifying screens are screened, obtains vulcanized rubber powder;
S8 feeding prepares process: vulcanized rubber powder and the softening agent of 10-12% quality and the activator of 15-18% quality are mixed together, and be stirred to even in mixer, rotating speed is that 30-40 turns/min;
S9 plastics processing: the vulcanized rubber powder after stirring is put into dual channel parallel dual-screw extruding machine, and temperature controls at 200-250 DEG C, and under pressure reaches 3-5MPa condition, the time is 30-40min, obtains plasticized rubber powder;
The blended kneading of S10: plasticized rubber powder is pushed kneading runner in dual channel parallel dual-screw extruding machine, chilling temperature controls at 120-180 DEG C, under pressure reaches 2-3MPa condition, obtains reclaimed rubber by kneading and mixing process.
2. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, is characterized in that: the micelle of described below 1.4mm carries out three magnetic separation through cylinder roll-type permanent magnetic separator, and the best field intensity of magnet drum is 800mT.
3. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, is characterized in that: described softening agent is the one in alkane, cycloalkane and aromatic hydrocarbons.
4. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, is characterized in that: described activator is the one in ethylenediamine phosphate, phosphoric acid propane diamine, dimethylbenzene and prodan.
5. according to claim 1ly produce the method for reclaimed rubber with the vulcanized rubber powder of junked tire, it is characterized in that: described vulcanized rubber powder and softening agent and activator are mixed together stirring, and its mixer optimum speed is 30 turns/min.
6. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, is characterized in that: described dual channel parallel dual-screw extruding machine is the extruder of full engagement system.
7. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, is characterized in that: dual channel parallel dual-screw extruding machine put into by described stirring after cure rubber powder, and optimum temperature is 250 DEG C, pressure 5MPa, and the time is 40min.
8. method of producing reclaimed rubber with the vulcanized rubber powder of junked tire according to claim 1, it is characterized in that: described plasticized rubber powder pushes kneading runner in dual channel parallel dual-screw extruding machine, optimum temperature is 180 DEG C, pressure 3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310309081.9A CN104526895A (en) | 2013-07-22 | 2013-07-22 | Method for producing regenerated rubber by vulcanized rubber powder of waste tyres |
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| CN201310309081.9A CN104526895A (en) | 2013-07-22 | 2013-07-22 | Method for producing regenerated rubber by vulcanized rubber powder of waste tyres |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875297A (en) * | 2015-05-14 | 2015-09-02 | 浙江菱正机械有限公司 | System for preparing fine rubber powder by utilizing waste tire |
| CN108250556A (en) * | 2018-01-18 | 2018-07-06 | 厦门市金汤橡塑有限公司 | A kind of method that overlap waste recovery utilizes |
| CN108929460A (en) * | 2017-05-24 | 2018-12-04 | 汤真 | A kind of plasticity environmental protection glue production method and equipment |
| CN109503865A (en) * | 2018-12-18 | 2019-03-22 | 广西远景资源再生有限公司 | A kind of technique that rubber powder surface is modified |
| CN114031810A (en) * | 2021-11-01 | 2022-02-11 | 杭州中策橡胶循环科技有限公司 | Preparation method of reclaimed rubber from solid waste rubber tire |
| CN114102896A (en) * | 2020-08-27 | 2022-03-01 | 仙桃市聚兴橡胶有限公司 | Manufacturing method for producing tire reclaimed rubber by plasticizing of normal-pressure continuous plasticizing machine |
| CN114478840A (en) * | 2021-11-01 | 2022-05-13 | 杭州中策橡胶循环科技有限公司 | Functionalized reversion liquid rubber and preparation method thereof |
| CN114939940A (en) * | 2022-05-10 | 2022-08-26 | 瑞安市大虎鞋业有限公司 | Shoemaking waste treatment device and treatment process thereof |
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| CN101168600A (en) * | 2007-09-20 | 2008-04-30 | 南京工业大学 | High shear stress induced desulfurization and modification method for waste tire rubber |
| CN101418082A (en) * | 2008-11-27 | 2009-04-29 | 江苏工业学院 | Green desulfurization technique of waste rubber |
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- 2013-07-22 CN CN201310309081.9A patent/CN104526895A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101168600A (en) * | 2007-09-20 | 2008-04-30 | 南京工业大学 | High shear stress induced desulfurization and modification method for waste tire rubber |
| CN101418082A (en) * | 2008-11-27 | 2009-04-29 | 江苏工业学院 | Green desulfurization technique of waste rubber |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875297A (en) * | 2015-05-14 | 2015-09-02 | 浙江菱正机械有限公司 | System for preparing fine rubber powder by utilizing waste tire |
| CN108929460A (en) * | 2017-05-24 | 2018-12-04 | 汤真 | A kind of plasticity environmental protection glue production method and equipment |
| CN108929460B (en) * | 2017-05-24 | 2021-03-19 | 汤真 | Production method and equipment of plastic environment-friendly glue |
| CN108250556A (en) * | 2018-01-18 | 2018-07-06 | 厦门市金汤橡塑有限公司 | A kind of method that overlap waste recovery utilizes |
| CN108250556B (en) * | 2018-01-18 | 2020-01-10 | 厦门市金汤橡塑有限公司 | Method for recycling flash waste |
| CN109503865A (en) * | 2018-12-18 | 2019-03-22 | 广西远景资源再生有限公司 | A kind of technique that rubber powder surface is modified |
| CN114102896A (en) * | 2020-08-27 | 2022-03-01 | 仙桃市聚兴橡胶有限公司 | Manufacturing method for producing tire reclaimed rubber by plasticizing of normal-pressure continuous plasticizing machine |
| CN114031810A (en) * | 2021-11-01 | 2022-02-11 | 杭州中策橡胶循环科技有限公司 | Preparation method of reclaimed rubber from solid waste rubber tire |
| CN114478840A (en) * | 2021-11-01 | 2022-05-13 | 杭州中策橡胶循环科技有限公司 | Functionalized reversion liquid rubber and preparation method thereof |
| CN114478840B (en) * | 2021-11-01 | 2022-09-06 | 杭州中策橡胶循环科技有限公司 | Functionalized reversion liquid rubber and preparation method thereof |
| CN114031810B (en) * | 2021-11-01 | 2022-09-06 | 杭州中策橡胶循环科技有限公司 | Preparation method of reclaimed rubber from solid waste rubber tire |
| CN114939940A (en) * | 2022-05-10 | 2022-08-26 | 瑞安市大虎鞋业有限公司 | Shoemaking waste treatment device and treatment process thereof |
| CN114939940B (en) * | 2022-05-10 | 2024-04-02 | 瑞安市大虎鞋业有限公司 | Shoemaking waste treatment device and treatment process thereof |
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Application publication date: 20150422 |