CN101676322A - Regeneration process of waste rubber - Google Patents
Regeneration process of waste rubber Download PDFInfo
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- CN101676322A CN101676322A CN200810141379A CN200810141379A CN101676322A CN 101676322 A CN101676322 A CN 101676322A CN 200810141379 A CN200810141379 A CN 200810141379A CN 200810141379 A CN200810141379 A CN 200810141379A CN 101676322 A CN101676322 A CN 101676322A
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- rubber
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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 invention relates to a regeneration method of waste rubber, and the method is carried out according to the following steps: (1) preparing rubber powder: carrying out the working procedures of impurity removal, crushing, smashing and magnetic separation for preparing a finished product of the rubber powder; (2) mixing: pouring the finished product of the rubber powder and a regenerant of the waste rubber which accounts for 2-5% of the weight of the rubber powder into a hopper of an internal mixer, and mixing at the rotational speed of 500-1000 turns/minute; (3) desulfurization regeneration:carrying out internal mixing for 6-8min after that the temperature of the rubber powder is increased to 80-120 DEG C for realizing the desulfurization regeneration of the rubber powder; and (4) refining: directly sending the rubber powder after the desulfurization regeneration into a mixing roll machine for carrying out extrusion, then sending into a screw rubber straining extruder, passing through a filter mesh on a porous plate of a machine head of the rubber straining extruder, and then carrying out refining for obtaining a rubber plate. The regeneration method of the waste rubber has theadvantages of high efficiency, energy conservation, no pollution and the like.
Description
Technical field
The invention belongs to waste old and reclaim the field, be specifically related to a kind of regeneration process of waste rubber.
Background technology
Fast development along with Chinese national economy, natural synthetic rubber has not satisfied the demand in market, and the rubber regeneration industry meets the national conditions of China, the comprehensive utilization of waste and old rubber, benefit the nation and the people, because China is the consumption big country of rubber sources, be again the very deficient country of rubber sources simultaneously.Chinese rubber resources consumption amount is about 24% of world's rubber consumption, and the self-produced rubber sources of China is less than 10%, and the production of reclaimed rubber can remedy the rubber sources deficiency of country, can make the rubber recycle.The development of regenerated rubber will become the main force of China's rubber development.The biggest problem that current regenerated rubber faces is exactly the low output of high energy consumption, and secondary pollution is arranged.In existing technology, because difference, the technology difference of equipment, in process of production, though by technical renovation, add rubber ingredients or utilize the physicals of waste old to undergo technological transformation, but be high consumption low energy all the time, have sulfuration refuse and benzene,toluene,xylene objectionable impurities to discharge, directly influence the healthy of people.The production method that a kind of rubber regeneration utilizes is disclosed such as Chinese patent 200610015149.2, junked tire is crushed to below 50 orders with mechanical crusher, chemical fibre in the separated tyre and steel wire paragraph then, again the crushing rubber particle is put into stainless steel cylinder, stir dynamically desulfurization with the grease decomposition agent, be forced into 20～25 kilograms, be heated to 250 ℃, placed then 5 hours, waste gas is disposed to atmosphere after by acid-base neutralisation in the tube.There is serious atmospheric pollution in exhaust gas emission behind the acid-base neutralisation in air, need to consume a large amount of soda acids in addition in the production process, the energy consumption height.Chinese patent 200610015149.2 discloses a kind of manufacture method of silicone vulcanizates reclaimed rubber, technical process is that waste or used vulcanized rubber obtains regenerated rubber through removal of impurities, washing, drying, stripping and slicing, pulverizing, step for regeneration, refining procedure, filtration, and wherein the step for regeneration temperature is 400～500 ℃.Higher regeneration temperature has increased production energy consumption, and is unfavorable for suitability for industrialized production.
Summary of the invention
The objective of the invention is to solve the high energy consumption that exists in the existing regenerating technology for waste rubber, the technical problem that secondary pollution is serious provides the regeneration process of waste rubber of a kind of energy-saving and cost-reducing, low temperature, no oil, no pressure, short period of time, pollution-free, environment-friendly type.
The present invention seeks to be achieved through the following technical solutions:
Process for regenerating used rubber of the present invention, this method is carried out according to the following steps:
(1) rubber powder is produced: waste old makes the rubber powder finished product through removal of impurities, fragmentation, pulverizing, magnetic separation operation,
(2) mixing: rubber powder finished product and the regenerating waste or used rubber agent that accounts for rubber powder weight 2～5% are put in the hopper of Banbury mixer, mixing under 500～1000 rev/mins rotating speed;
(3) desulfurization regeneration: treat the rubber powder temperature rise to 80～120 ℃ after banburying made the rubber powder desulfurization regeneration in 6～8 minutes;
(4) refining: the rubber powder behind the powder desulfurization regeneration is directly sent into mill push, and then send into screw rod filter rubber extruding machine, obtain rubber plate by carrying out refining again behind the filter screen on the porous plate of filter rubber extruding machine head.
The regenerating waste or used rubber agent of adding in the desulfurization regeneration step is to contain the plant of oxysuccinic acid and diallyl disulfide and the extract of fruit.
The described plant that contains oxysuccinic acid and diallyl disulfide is selected from one or more in apple, For-carrying green onion, the onion.
Screen specification on the porous plate of filter rubber extruding machine head is that 20～30 orders are two-layer.
Because the present invention has adopted technique scheme, compare with prior art, the present invention has following beneficial effect: (1) is energy-conservation: this technology is used and is produced spontaneous heat, be to utilize mechanical stirring to shear, utilize the sizing material internal friction to suppress to give birth to heat, optimized dynamic jar of desulfurizer method greatly, can save heat energy in a large number, the saving of work and time power saving, comprehensively save cost and reach more than 60%.(2) low cost: this technology need not any softening oil, promoting agent such as coal tar, Stockholm tar, coal-tar pitch, Yatall MA, 420 activators etc., and waste old is fully used, and production cost reduces significantly.(3) pollution-free: use this technology in process of production, no waste water, no waste residue, no exhaust emission, the realization environmental protection is carried out production strictly in line with rules and regulations.(4) efficient: the regenerative process of this technology is a continuous production, has simplified schedule of operation such as batch feed, intensification, regeneration, insulation, discharging, has realized the high materialization innovation that junked tire and waste old utilize, thereby has improved production efficiency greatly.(5) high-quality: the regenerated rubber plate that this technology is produced belongs to reduced rubber, and every performance index all are better than the product with other method production, and quality product is greatly improved.(6) multi-functional: this technology is applicable to the reducing/regenerating of various waste old vulcanized article, as natural rubber, synthetic rubber, isoprene-isobutylene rubber etc.
Embodiment
Below by embodiment the present invention is elaborated.
Embodiment 1
(1) rubber powder is produced: choose waste and used rubber tyre, through the removal of impurities of Steel Traveler stripping machine excision tyre surface, obtain 25mm * 25mm blob of viscose, pulverize after the magnetic separation operation makes 3～5 purpose rubber powder finished products through pulverizer through crusher in crushing.
(2) mixing: as then rubber powder finished product and the regenerating waste or used rubber agent that accounts for rubber powder weight 2% to be put in the hopper of Banbury mixer, under 500 rev/mins rotating speed, rotated mixing by 4 rib rotors.
(3) desulfurization regeneration: rubber powder is subjected to powerful shearing, extruding and friction, produces a large amount of heats continuously, and rubber powder is rapidly heated, treat the rubber powder temperature rise to 120 ℃ after banburying made the rubber powder desulfurization regeneration in 6 minutes.
(4) refining: the rubber powder after the banburying is directly sent into mill push, and then send into screw rod and filter rubber extruding machine, obtain rubber plate by carrying out refining again behind the filter screen on the porous plate of filter rubber extruding machine head, screen specification on the porous plate of filter rubber extruding machine head is that 20 orders are two-layer, the packing warehouse-in.The product physicals: tensile strength is 9.8Mpa, and elongation rate of tensile failure is 400%.
The preparation method of the regenerating waste or used rubber agent that present embodiment is used is as follows: the fragmentation of 20Kg For-carrying green onion is obtained broken thing; (2) in reactor, add the water of 100 weight parts and the broken thing that step 1 obtains, under 3000 rev/mins rotating speed, stirred 5 minutes, obtain water slurry; (3) water slurry that step 2 obtained filters, and is to be squeezed into fraction under the 40 purpose filter cloth normal temperature by mesh then, removes moisture in the fraction with reactor again, obtains containing the regenerating waste or used rubber agent of oxysuccinic acid and diallyl disulfide.
Embodiment 2
(1) rubber powder is produced: choose waste and used rubber tyre, through the removal of impurities of Steel Traveler stripping machine excision tyre surface, obtain 25mm * 25mm blob of viscose, pulverize after the magnetic separation operation makes 3～5 purpose rubber powder finished products through pulverizer through crusher in crushing.
(2) mixing: as then rubber powder finished product and the regenerating waste or used rubber agent that accounts for rubber powder weight 5% to be put in the hopper of Banbury mixer, under 1000 rev/mins rotating speed, rotated mixing by 4 rib rotors.
(3) desulfurization regeneration: rubber powder is subjected to powerful shearing, extruding and friction, produces a large amount of heats continuously, and rubber powder is rapidly heated, treat the rubber powder temperature rise to 80 ℃ after banburying made the rubber powder desulfurization regeneration in 8 minutes.
(4) refining: the rubber powder after the banburying is directly sent into mill push, and then send into screw rod and filter rubber extruding machine, obtain rubber plate by carrying out refining again behind the filter screen on the porous plate of filter rubber extruding machine head, screen specification on the porous plate of filter rubber extruding machine head is that 30 orders are two-layer, the packing warehouse-in.The product physicals: tensile strength is 10.5Mpa, and elongation rate of tensile failure is 390%.
The preparation method of the regenerating waste or used rubber agent that present embodiment is used is as follows: 40Kg For-carrying green onion and the fragmentation of 40Kg onion are obtained broken thing; (2) in reactor, add the water of 100 weight parts and the broken thing that obtains of step 1, under 500～3000 rev/mins rotating speed, stirred 5～10 minutes, obtain water slurry; (3) water slurry that step 2 obtained filters, and is to be squeezed into fraction under the 60 purpose filter cloth normal temperature by mesh then, removes moisture in the fraction with reactor again, obtains containing the regenerating waste or used rubber agent of oxysuccinic acid and diallyl disulfide.
Embodiment 3
(1) rubber powder is produced: choose waste and used rubber tyre, through the removal of impurities of Steel Traveler stripping machine excision tyre surface, obtain 25mm * 25mm blob of viscose, pulverize after the magnetic separation operation makes 3～5 purpose rubber powder finished products through pulverizer through crusher in crushing.
(2) mixing: as then rubber powder finished product and the regenerating waste or used rubber agent that accounts for rubber powder weight 4% to be put in the hopper of Banbury mixer, under 800 rev/mins rotating speed, rotated mixing by 4 rib rotors.
(3) desulfurization regeneration: rubber powder is subjected to powerful shearing, extruding and friction, produces a large amount of heats continuously, and rubber powder is rapidly heated, treat the rubber powder temperature rise to 100 ℃ after banburying made the rubber powder desulfurization regeneration in 7 minutes.
(4) refining: the rubber powder after the banburying is directly sent into mill push, and then send into screw rod and filter rubber extruding machine, obtain rubber plate by carrying out refining again behind the filter screen on the porous plate of filter rubber extruding machine head, screen specification on the porous plate of filter rubber extruding machine head is that 30 orders are two-layer, the packing warehouse-in.The product physicals: tensile strength is 11Mpa, and elongation rate of tensile failure is 380%.
The preparation method of the regenerating waste or used rubber agent that present embodiment is used is as follows: 20Kg For-carrying green onion, 20Kg onion and the fragmentation of 35Kg apple are obtained broken thing; (2) in reactor, add the water of 100 weight parts and the broken thing that step 1 obtains, under 2600 rev/mins rotating speed, stirred 7 minutes, obtain water slurry; (3) water slurry that step (2) obtained filters, and is to be squeezed into fraction under the 60 purpose filter cloth normal temperature by mesh then, removes moisture in the fraction with reactor again, obtains containing the regenerating waste or used rubber agent of oxysuccinic acid and diallyl disulfide.
Claims (4)
1. process for regenerating used rubber is characterized in that this method carries out according to the following steps:
(1) rubber powder is produced: waste old makes the rubber powder finished product through removal of impurities, fragmentation, pulverizing, magnetic separation operation,
(2) mixing: rubber powder finished product and the regenerating waste or used rubber agent that accounts for rubber powder weight 2～5% are put in the hopper of Banbury mixer, mixing under 500～1000 rev/mins rotating speed;
(3) desulfurization regeneration: treat the rubber powder temperature rise to 80～120 ℃ after banburying made the rubber powder desulfurization regeneration in 6～8 minutes;
(4) refining: the rubber powder behind the powder desulfurization regeneration is directly sent into mill push, and then send into screw rod filter rubber extruding machine, obtain rubber plate by carrying out refining again behind the filter screen on the porous plate of filter rubber extruding machine head.
2. regeneration process of waste rubber according to claim 1 is characterized in that: the regenerating waste or used rubber agent of adding in the desulfurization regeneration step is to contain the plant of oxysuccinic acid and diallyl disulfide and the extract of fruit.
3. regeneration process of waste rubber according to claim 2 is characterized in that: the described plant that contains oxysuccinic acid and diallyl disulfide is selected from least a in apple, For-carrying green onion, the onion.
4. regeneration process of waste rubber according to claim 1 is characterized in that: the screen specification on the porous plate of filter rubber extruding machine head is that 20～30 orders are two-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141379A CN101676322A (en) | 2008-09-16 | 2008-09-16 | Regeneration process of waste rubber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810141379A CN101676322A (en) | 2008-09-16 | 2008-09-16 | Regeneration process of waste rubber |
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| CN101676322A true CN101676322A (en) | 2010-03-24 |
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| CN200810141379A Pending CN101676322A (en) | 2008-09-16 | 2008-09-16 | Regeneration process of waste rubber |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936356A (en) * | 2012-11-12 | 2013-02-20 | 江苏东旭科技有限公司 | Method for processing regenerated rubber |
| CN102962907A (en) * | 2012-10-29 | 2013-03-13 | 南通回力橡胶有限公司 | Rubber regeneration process |
| CN103467864A (en) * | 2013-08-12 | 2013-12-25 | 随州市普康橡塑有限公司 | Preparation technology for regenerating waste butyl rubber |
| CN103600437A (en) * | 2013-11-08 | 2014-02-26 | 柳州市雅骏塑料制品有限责任公司 | Comprehensive treatment method of dry-spun spandex waste materials |
| CN105968460A (en) * | 2016-05-23 | 2016-09-28 | 华南协同创新研究院 | Method for preparing rubber by using onion essential oil as rubber regenerant |
| CN106750508A (en) * | 2016-03-17 | 2017-05-31 | 青岛科技大学 | A kind of damaged tire face renovation process |
| CN108264650A (en) * | 2018-01-24 | 2018-07-10 | 临沭县中泰橡胶制品有限公司 | A kind of preparation method of latex reclaimed rubber |
| CN108929460A (en) * | 2017-05-24 | 2018-12-04 | 汤真 | A kind of plasticity environmental protection glue production method and equipment |
| CN111825990A (en) * | 2019-04-17 | 2020-10-27 | 邢台中车环保科技有限公司 | Low-Mooney viscosity reclaimed rubber particle and preparation method and application thereof |
| CN112358651A (en) * | 2020-12-03 | 2021-02-12 | 惠州市福橡新材料科技有限公司 | Vulcanized rubber reduction method |
| CN113061288A (en) * | 2021-03-29 | 2021-07-02 | 广西交科集团有限公司 | Desulfurized rubber powder and preparation method thereof, and rubber asphalt composite material and preparation method thereof |
| CN116408902B (en) * | 2023-03-06 | 2024-04-30 | 绵阳锐洋新材料技术开发有限公司 | Recycling processing method of waste rubber |
-
2008
- 2008-09-16 CN CN200810141379A patent/CN101676322A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962907A (en) * | 2012-10-29 | 2013-03-13 | 南通回力橡胶有限公司 | Rubber regeneration process |
| CN102936356A (en) * | 2012-11-12 | 2013-02-20 | 江苏东旭科技有限公司 | Method for processing regenerated rubber |
| CN103467864A (en) * | 2013-08-12 | 2013-12-25 | 随州市普康橡塑有限公司 | Preparation technology for regenerating waste butyl rubber |
| CN103600437A (en) * | 2013-11-08 | 2014-02-26 | 柳州市雅骏塑料制品有限责任公司 | Comprehensive treatment method of dry-spun spandex waste materials |
| CN103600437B (en) * | 2013-11-08 | 2015-12-02 | 顾社辉 | The integrated conduct method of dry spinning spandex waste material |
| CN106750508A (en) * | 2016-03-17 | 2017-05-31 | 青岛科技大学 | A kind of damaged tire face renovation process |
| CN105968460A (en) * | 2016-05-23 | 2016-09-28 | 华南协同创新研究院 | Method for preparing rubber by using onion essential oil as rubber regenerant |
| CN105968460B (en) * | 2016-05-23 | 2017-12-29 | 华南协同创新研究院 | A kind of method that rubber is prepared using onion essential oil as rubber reclaiming agent |
| 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 |
| CN108264650A (en) * | 2018-01-24 | 2018-07-10 | 临沭县中泰橡胶制品有限公司 | A kind of preparation method of latex reclaimed rubber |
| CN111825990A (en) * | 2019-04-17 | 2020-10-27 | 邢台中车环保科技有限公司 | Low-Mooney viscosity reclaimed rubber particle and preparation method and application thereof |
| CN112358651A (en) * | 2020-12-03 | 2021-02-12 | 惠州市福橡新材料科技有限公司 | Vulcanized rubber reduction method |
| CN113061288A (en) * | 2021-03-29 | 2021-07-02 | 广西交科集团有限公司 | Desulfurized rubber powder and preparation method thereof, and rubber asphalt composite material and preparation method thereof |
| CN116408902B (en) * | 2023-03-06 | 2024-04-30 | 绵阳锐洋新材料技术开发有限公司 | Recycling processing method of waste rubber |
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