CN102950672A - Method for producing high-tenacity rubber powder through utilizing junked tires - Google Patents
Method for producing high-tenacity rubber powder through utilizing junked tires Download PDFInfo
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- CN102950672A CN102950672A CN2012101909169A CN201210190916A CN102950672A CN 102950672 A CN102950672 A CN 102950672A CN 2012101909169 A CN2012101909169 A CN 2012101909169A CN 201210190916 A CN201210190916 A CN 201210190916A CN 102950672 A CN102950672 A CN 102950672A
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- rubber powder
- reinforcing agent
- crown
- tenacity
- junked 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
- Y02W30/52—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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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a method for producing high-tenacity rubber powder through utilizing junked tires. The method comprises the following steps that: load series tires with the diameters of above 90 are selected at first, crown parts are separated out, then, the crowns are slabbed by a a slabbing machine to be fed into a fine crushing machine, the crown slabs are crushed into particles of about 10-15 millimeters to be fed into a rubber grinding mill through a conveyor, a reinforcing agent is then added so as to be sufficiently mixed with rubber powder, and after air cooling and dust removing, 40-140 mesh series of high-tenacity rubber powder can be produced. After strict tests, the produced high-tenacity rubber powder has the tensile strength of 17.0 megapascals which is obviously higher than a control group.
Description
Technical field
The present invention relates to chemical production technical field, relate in particular to a kind of production method of utilizing junked tire to produce the high-tenacity rubber powder.
Background technology
Japan has a kind of junked tire to prepare the report of rubber powder technique, this technique cuts into the square fritter of 10cm with junked tire, with boulder crusher fritter is ground coarse grain again, behind the impurity such as magnetic separator and winnowing machine removal steel wire and fiber, send into fine crusher and further be milled to thinner powder, and be sieved into finished products at different levels, raw material are not carried out separation screening yet, without adding reinforcing agent, air-cooled, dedusting operation, production technology is relatively simple, and product quality is difficult to ensure card; The relevant technique of utilizing junked tire to produce the high-tenacity rubber powder of external other countries is all fairly simple, just simply junked tire is processed into rubber powder, does not take measures to guarantee the quality of rubber powder from raw material, production process, finished product.
At present domesticly utilize junked tire to produce vulcanized rubber powder to be a brand-new material science, to be the very promising way of recycling that integrates environmental protection and resource regeneration.Junked tire is pulverized or ground to form micelle and rubber powder is the most direct mode by mechanical means, most rubber powder manufacturer, just simply by different production technologies junked tire is processed into rubber powder, its production technology is: junked tire → slitting → stripping and slicing → coarse crushing → normal temperature attritioning → isothermal grinding → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinding → dedusting → finished product.There is following problem in this production technology: the one, in the correct grinding process, there is " grind heat " difficult problem, and make fine glue powder softening, clayization, coking, molecule structure change, poor stability occur because grinding heat, thereby reduced hot strength and elongation at break; The 2nd, there are dust emission in correct grinding, grinding step, contaminated environment.
Summary of the invention
The purpose of this invention is to provide a kind of production method of utilizing junked tire to produce the high-tenacity rubber powder, it preferably resolves in the existing technology problem that has " grinding heat " and dust emission.
The objective of the invention is to be achieved through the following technical solutions, this production method of utilizing junked tire to produce the high-tenacity rubber powder is: junked tire → crown separation → stripping and slicing → normal temperature attritioning → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinds → adds reinforcing agent → air-cooled control → dedusting → finished product.
At first selected diameter 90 above load-carrying Series Tyre, isolate crown, then utilize dicer that crown is slit into bulk, feed again second reduction machine, be ground into the particle of 10-15 millimeter, send into rubber grinder by conveyer, then add the reinforcing agent in the 0.5%-0.7% scope, rubber powder is fully mixed with reinforcing agent, then through wind cooling temperature lowering and dedusting, produce 40-120 order series high-tenacity rubber powder.
Described reinforcing agent is high-performance rubber age resistor TSR-5.
The consumption of described reinforcing agent is 0.6%.
Beneficial effect of the present invention: adopt the high-quality crown as raw material, add its hot strength of rubber powder, the elongation at break produced after reinforcing agent and the wind cooling temperature lowering operation on existing processing technology basis and be better than the rubber powder that existing processing technology is produced.
Testing data
1, physical data: for the rubber powder that explained hereafter of the present invention better is described has preferably hot strength and elongation rate of tensile failure, set up control group and test group, two groups of high-quality crowns that all adopt load-carrying series (diameter is more than 90) junked tire are as raw materials for production.Control group adopts junked tire → crown separation → stripping and slicing → coarse crushing → normal temperature attritioning → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinding → dedusting → finished product production technology.
Test group is added composite fortifier and air-cooled operation on the basis of control group adopting process, and the technique that namely adopts is that junked tire → crown separation → stripping and slicing → coarse crushing → normal temperature attritioning → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinds → add reinforcing agent → air-cooled control → dedusting → finished product production technology.
2, test method: carry out the sample preparation according to the method for stipulating among the GB/T 19208-2008, after regulating according to 2941 pairs of samples of GB/T, hot strength, elongation rate of tensile failure test are undertaken by the regulation of GB/T 528, with I type dumbbell-shaped specimen.
Instrument: cut-off knife and slitter; Pachometer; The taper calipers; Tensile testing machine.
Test procedure: the correlation method according to GB/T 2941 regulations prepares dumbbell-shaped specimen; Carry out sample and regulate, under the standard test room temperature, regulate at least 3h; The adjusting of sample is regulated according to the regulation of GB/T 2941; Mark to sample; The measurement of sample is with middle part and the two ends detect thickness of pachometer in test length.The median that should get 3 measured values is used for calculating cross-sectional area.In any one dumbbell-shaped specimen, three thickness measurements of narrow should be greater than 2% of thickness median.Get distance between cut-off knife narrow blade as the width of sample, this distance should be measured by the regulation of GB/T 2941, is accurate to 0.05mm; Sample is clipped in symmetrically on the upper and lower clamper of tensile testing machine, is distributed on the cross section with making tension uniform.As required, stretching measurement apparatus of assembling.The firing test machine, the variation of continuous detecting test length and power in whole process of the test, precision is within ± 2%.The translational speed of clamper is 500mm/min ± 50mm/min.
Hot strength TS is calculated as follows, and represents with MPa:
TS＝Fm/(Wt)
Elongation rate of tensile failure Eb is calculated as follows, and represents with %:
Eb＝100(Lb-L0)/L0
In the formula: Fm---the maximum, force of record, the N of unit; W---cut-off knife narrow grace grace width, unit is mm; T---test length segment thickness, unit are mm; Lb---the test length when breaking, unit is mm; L0---initial trial length, unit is mm.
3, two groups of test datas of result of the test see the following form
Two groups of hot strengths, elongations at break compare
The specific embodiment
This production method of utilizing junked tire to produce the high-tenacity rubber powder is: junked tire → crown separation → stripping and slicing → normal temperature attritioning → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinds → adds reinforcing agent → air-cooled control → dedusting → finished product.
1, adopt and to cut nation's machine tire is cut nation, the tire that cuts after the nation forwards next procedure to, i.e. the cutting cutter operation.The novel technique in calligraphy dise knife that this operation is used adopts the Cr12 material to process.The dise knife initial forging temperature is strict controlled between 1250 ± 50 degree, final forging temperature is controlled between 850 ± 50 degree, completion of processing is heat-treated, quenching 960-980 degree, hardening media is machinery oil, temperature is between 550--600 ℃, and tempering time is 3 hours, and quenching hardness HRC is controlled at 58-60 ℃.Adopt the carburizer protection to reduce decarburization and oxide skin during quenching.
2, adopt dicer to carry out stripping and slicing, the dicer moving knife adopts the S cutter, and bed plate adopts the Nogata cutter.The Nogata cutter directly welds with alloy block, and the S cutter is to adopt the high annealing processing method to finish shape, then carries out the quench hot reduction, then adopts added-time tempering and normalizing to eliminate inherent strain, and its toughness is high.
3, second reduction machine adopts the conveyer belt conveying-type, makes feeding even, is evenly distributed between two rollers; At discharging opening development strong magnetic separation device, the assurance steel wire is all selected, selects clean; Wearability, the flexible plating are carried out in two pair roller surfaces, guarantee flexible separation, the combination of rubber molecule secondary science and coking, softening, sulfuration do not occur.Two pair roller inside are carried out the cold water circulating cooling, reduced mill stranding temperature, and regulate and control at any time the water yield according to climate change; The configuration of reciprocating vibration sieve is installed, and the many eye mesh screens of multilayer adopt from top to bottom, the discharge method from low mesh number to high order number.
4, grinder adopts coaxial mill kissing structure, the structure of the high depth of parallelism of movable grinding disc and fixed millstone.That is: main motor runs up by driving member drive main shaft, make the movable grinding disc that is installed on the movable grinding disc main body and the fixed millstone that is installed on the fixed millstone main body do relative shear and grind motion, when material when the conveying effect of charging motor enters grinding chamber, the grinding knife group is carried out fine gtinding in the mode of high speed shear and grinding with material, under the double action of special row's powder structure of centrifugal force and cutter, the rubber powder that meets fineness requirement removes grinding chamber through the interstitial row of mill, then extracts out by blower fan and enters following operation; Then staying grinding chamber greater than the rubber powder of fineness requirement continues to grind.In whole process of lapping, be to reduce the temperature of grinding chamber, grinding chamber is all the time with built-in circulating cooling water cooling, thus having guaranteed effectively that rubber powder can not produce in process of lapping burns and the phenomenon that bonds.
5, air-cooled dust arrester comprises conveying pipeline, cooling chamber, storage compartment, air blast, storage dirt cooling chamber, setting gauge, one end of conveying pipeline is provided with charging aperture, the other end of conveying pipeline forms cooling chamber, cooling chamber communicates with the storage compartment that it is arranged on the bottom, the bottom of storage compartment is provided with setting gauge, the setting gauge bottom is provided with discharging opening, and the top of cooling chamber communicates with air blast, and the bottom of air blast is provided with storage dirt cooling chamber.Fine rubber powder after the grinding is sent into charging aperture on the conveying pipeline through piping, start blower motor, the suction of air blast is inhaled rubber powder and is delivered to cooling chamber through conveying pipeline, because wind-force is large, concentrated, the process that is drawn onto cooling chamber from charging aperture has realized cooling exactly, and the rubber powder of finishing cooling drops to the storage compartment, dust and hot gas then enter storage dirt cooling chamber, drop to the rubber powder of storage compartment, through setting gauge and discharging opening, enter packing machine and pack.And so forth circulation.
Claims (3)
1. production method of utilizing junked tire to produce the high-tenacity rubber powder, comprise junked tire → crown separation → stripping and slicing → normal temperature attritioning → strong magnetic separation → vibrations screening → strong magnetic separation → isothermal grinding → dedusting → finished product, it is characterized in that this production method comprises that also crown separates, add reinforcing agent, air-cooled control three road production processes, i.e. at first selected diameter 90 above load-carrying Series Tyre, isolate crown, then utilize dicer that crown is slit into bulk, feed again second reduction machine, be ground into the particle of 10-15 millimeter, send into rubber grinder by conveyer, then add the reinforcing agent in the 0.5%-0.7% scope, rubber powder is fully mixed with reinforcing agent, then through wind cooling temperature lowering and dedusting, produce 40-120 order series high-tenacity rubber powder.
2. a kind of production method of utilizing junked tire to produce the high-tenacity rubber powder according to claim 1 is characterized in that described reinforcing agent is high-performance rubber age resistor TSR-5.
3. a kind of production method of utilizing junked tire to produce the high-tenacity rubber powder according to claim 1, the consumption that it is characterized in that described reinforcing agent is 0.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101909169A CN102950672A (en) | 2012-06-01 | 2012-06-01 | Method for producing high-tenacity rubber powder through utilizing junked tires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101909169A CN102950672A (en) | 2012-06-01 | 2012-06-01 | Method for producing high-tenacity rubber powder through utilizing junked tires |
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| CN102950672A true CN102950672A (en) | 2013-03-06 |
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| CN2012101909169A Pending CN102950672A (en) | 2012-06-01 | 2012-06-01 | Method for producing high-tenacity rubber powder through utilizing junked tires |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107197A (en) * | 2022-07-28 | 2022-09-27 | 黑龙江工程学院 | Resource regeneration treatment method for waste tires |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251331A (en) * | 1999-10-27 | 2000-04-26 | 何永峰 | Industrialized novel method for producing fine rubber powder by disintegration under normal temp. |
| CN1715023A (en) * | 2005-06-03 | 2006-01-04 | 东莞市方达环宇环保科技有限公司 | Method for producing fine rubber powder by constant temperature cracking |
| CN101234517A (en) * | 2008-02-23 | 2008-08-06 | 东莞市方达环宇环保科技有限公司 | Method for crushing producing fineness rubber powder under normal temperature |
| CN202016142U (en) * | 2011-04-02 | 2011-10-26 | 陈观元 | Rubber powder production system |
| CN202062552U (en) * | 2010-12-20 | 2011-12-07 | 桑德环境资源股份有限公司 | Rubber powder producing system |
-
2012
- 2012-06-01 CN CN2012101909169A patent/CN102950672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251331A (en) * | 1999-10-27 | 2000-04-26 | 何永峰 | Industrialized novel method for producing fine rubber powder by disintegration under normal temp. |
| CN1715023A (en) * | 2005-06-03 | 2006-01-04 | 东莞市方达环宇环保科技有限公司 | Method for producing fine rubber powder by constant temperature cracking |
| CN101234517A (en) * | 2008-02-23 | 2008-08-06 | 东莞市方达环宇环保科技有限公司 | Method for crushing producing fineness rubber powder under normal temperature |
| CN202062552U (en) * | 2010-12-20 | 2011-12-07 | 桑德环境资源股份有限公司 | Rubber powder producing system |
| CN202016142U (en) * | 2011-04-02 | 2011-10-26 | 陈观元 | Rubber powder production system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107197A (en) * | 2022-07-28 | 2022-09-27 | 黑龙江工程学院 | Resource regeneration treatment method for waste tires |
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Application publication date: 20130306 |