CN1103350A - Method for desulfuration regeneration of waste rubber - Google Patents
Method for desulfuration regeneration of waste rubber Download PDFInfo
- Publication number
- CN1103350A CN1103350A CN93120285A CN93120285A CN1103350A CN 1103350 A CN1103350 A CN 1103350A CN 93120285 A CN93120285 A CN 93120285A CN 93120285 A CN93120285 A CN 93120285A CN 1103350 A CN1103350 A CN 1103350A
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- CN
- China
- Prior art keywords
- desulfurization
- rubber
- minutes
- microwave
- rubber powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The method for devulcanizing of used rubber features that microwave and infrared areas are alternatively arranged. The energy in each radiation area may be adjusted for different kinds of used powdered rubber to breaking out its bonds. With stirring, the powdered rubber is prevented from overheating or charring.
Description
The present invention relates to a kind of process for regenerating used rubber, particularly a kind of microwave and infrared heat source of utilizing, with suitable cooperation, the waste vulcanized rubber powder of interval reprocessing, the method for producing reclaimed rubber.
Japanese kokai publication sho 58-87035(1983) discloses a kind of microwave desulfurization, adopted the high-frequency electronic heating furnace, added diphenylguanidine, the heat that the regeneration sizing material is accumulated during the desulfurization, can be in air because of oxidation incipient scorch, charing, the compounding ingredient in the sizing material also can decompose, and causes performance degradation.
Purpose of the present invention just provides that a kind of rubber powder can not burn, the devulcanization of rubber renovation process of charing.
Technological process of the present invention is: scrap rubber classify → cut glue → wash glue → coarse crushing → pulverize → sieve → spice → desulfurization → refining glue → refining slice.
On the sealing device of a steel, microwave radiation area and infrared heat preservation zone are set at interval, handle vulcanized rubber powder, dress microwave source 10KW, infrared heat source 25KW gets rubber powder 83.95～87.495%, activator 12.5～16%, softening agent 0.005～0.05%(percentage by weight), stir, with the defeated material of steel band, make and mix rubber powder by microwave radiation, infrared insulation, 125～165 ℃ of desulfurization temperatures, best 160 ℃, desulfurization time 15～75 minutes, best 60 minutes, 130～180 ℃ of holding temperatures, best 165 ℃, temperature retention time 22～37 minutes, the best are 30 minutes, microwave dosage 55～100wh/kg, best 85wh/kg, radiation again, insulation again repeats discharging continuously for several times, device is stirred in the segmentation setting on steel band, to improve the uniformity of rubber powder.
Owing at interval microwave is set, infrared heat preservation zone can be regulated the microwave energy of each radiation area, makes dissimilar rubber powders, obtains enough energy in different zones, reaches the purpose of scission of link.Rubber powder adopts microwave radiation and infrared ray insulation to handle at interval, and through stirring stirring, the heat of having avoided high-energy radiation of microwave to accumulate, the rubber powder part is overheated, is clamminess, smolders even charing.
Below in conjunction with embodiment, the invention will be further described.
Get waste and old footwear glue 85kg, be cut into a certain size bulk with bale splitter, clean airing after, send the boulder crusher coarse crushing, pulverizer is pulverized, and removes rubber reinforcement through the screening machine screening again, make 30 purpose rubber powders, add softening agent 14.95kg, 420 activator 0.05kg stir 10min, deliver to the steel conveyer belt by feeding conveyor, make rubber powder enter the microwave radiation area, microwave dosage is 60kw/kg, arrive infrared heat preservation zone again, desulfurization temperature is 130 ℃, and desulfurization time is 56 minutes, radiation again, insulation again, triplicate, 160 ℃ of holding temperatures, temperature retention time are 31 minutes, discharging continuously, behind cooling section, send rubber powder by outfeed belt conveyor, the reclaimed rubber that this rubber powder is smelt is 97kg, detects through the Meizhou City product quality supervision and testing institute, hot strength 4.5MPa, elongation rate of tensile failure 300%, Mooney viscosity 75ML meets standard GB/T13460-92.
Embodiment two
Get junked tire 86.92kg, be cut into bulk, through coarse crushing, after the pulverizing, screening machine is made 30 purpose rubber powders, add pine tar 13.05kg, 420 activator 0.03kg stir 12min, be delivered to the steel conveyer belt by feeding conveyor, make rubber powder enter the microwave radiation area, microwave dosage is 85wh/kg, arrives infrared heat preservation zone again, desulfurization temperature is 160 ℃, desulfurization time 60 minutes, radiation again, insulation again, 165 ℃ of holding temperatures, temperature retention time 30 minutes, discharging continuously after cooling, is sent rubber powder by outfeed belt conveyor, the reclaimed rubber that this rubber powder is smelt is 97.3kg, detect hot strength 8MPa, elongation rate of tensile failure 360% through the Meizhou City quality inspection, Mooney viscosity 69ML meets standard GB/T13460-92.
Claims (2)
1, a kind of waste old doctor treatment is characterized in that:
(1), desulfurization formulation is formed (percentage by weight): rubber powder 83.95～87.495%, softening agent 12.5～16.0%, activator 0.005～0.05%;
(2), 125～165 ℃ of desulfurization temperatures, desulfurization time 45～75 minutes, 130～180 ℃ of holding temperatures, temperature retention time 22～37 minutes;
(3), microwave dosage 55～100wh/kg.
2,, it is characterized in that optimum value is: rubber powder 86.92%, softening agent 13.05% according to the described waste old doctor treatment of claim 1, activator 0.03%, 160 ℃ of desulfurization temperatures, desulfurization time 60 minutes, 165 ℃ of holding temperatures, temperature retention time 30 minutes, microwave dosage 85wh/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93120285A CN1103350A (en) | 1993-12-02 | 1993-12-02 | Method for desulfuration regeneration of waste rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93120285A CN1103350A (en) | 1993-12-02 | 1993-12-02 | Method for desulfuration regeneration of waste rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103350A true CN1103350A (en) | 1995-06-07 |
Family
ID=4993229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93120285A Pending CN1103350A (en) | 1993-12-02 | 1993-12-02 | Method for desulfuration regeneration of waste rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103350A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824173A (en) * | 2010-03-23 | 2010-09-08 | 江汉大学 | Microwave modified rubber powder of waste tire and preparation method thereof |
| CN101831184A (en) * | 2010-03-23 | 2010-09-15 | 江汉大学 | Pitch modified from waste tire rubber powder and preparation method thereof |
| CN101445619B (en) * | 2008-08-29 | 2011-10-26 | 宋非 | Instant activation reduction method for rubber |
| CN105418964A (en) * | 2015-12-28 | 2016-03-23 | 天津海泰环保科技发展有限公司 | Microwave catalytic activation rubber powder composition and preparation method therefor |
| CN105504840A (en) * | 2016-01-04 | 2016-04-20 | 北京东方雨虹防水技术股份有限公司 | Preparing method for low-temperature modified asphalt for roads |
| CN107033385A (en) * | 2017-05-06 | 2017-08-11 | 洛阳和梦科技有限公司 | Scrap rubber regenerated environment protecting method |
| CN111234308A (en) * | 2019-09-17 | 2020-06-05 | 福建省邵武市恒晖橡胶再生有限公司 | Rubber desulfurization method |
-
1993
- 1993-12-02 CN CN93120285A patent/CN1103350A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445619B (en) * | 2008-08-29 | 2011-10-26 | 宋非 | Instant activation reduction method for rubber |
| CN101824173A (en) * | 2010-03-23 | 2010-09-08 | 江汉大学 | Microwave modified rubber powder of waste tire and preparation method thereof |
| CN101831184A (en) * | 2010-03-23 | 2010-09-15 | 江汉大学 | Pitch modified from waste tire rubber powder and preparation method thereof |
| CN101824173B (en) * | 2010-03-23 | 2012-09-05 | 江汉大学 | Microwave modified rubber powder of waste tire and preparation method thereof |
| CN101831184B (en) * | 2010-03-23 | 2012-09-26 | 江汉大学 | Pitch modified from waste tire rubber powder and preparation method thereof |
| CN105418964A (en) * | 2015-12-28 | 2016-03-23 | 天津海泰环保科技发展有限公司 | Microwave catalytic activation rubber powder composition and preparation method therefor |
| CN105504840A (en) * | 2016-01-04 | 2016-04-20 | 北京东方雨虹防水技术股份有限公司 | Preparing method for low-temperature modified asphalt for roads |
| CN107033385A (en) * | 2017-05-06 | 2017-08-11 | 洛阳和梦科技有限公司 | Scrap rubber regenerated environment protecting method |
| CN111234308A (en) * | 2019-09-17 | 2020-06-05 | 福建省邵武市恒晖橡胶再生有限公司 | Rubber desulfurization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |