CN102212203B - Normal-pressure continuous desulfurizing method for rubber - Google Patents
Normal-pressure continuous desulfurizing method for rubber Download PDFInfo
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- CN102212203B CN102212203B CN2011101238367A CN201110123836A CN102212203B CN 102212203 B CN102212203 B CN 102212203B CN 2011101238367 A CN2011101238367 A CN 2011101238367A CN 201110123836 A CN201110123836 A CN 201110123836A CN 102212203 B CN102212203 B CN 102212203B
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- desulfurization
- pipeline
- desulfurizing
- rubber
- pressure continuous
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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)
Abstract
The invention provides a normal-pressure continuous desulfurizing method for rubber. The method comprises the following steps of: pulverizing rubber to obtain pulverized rubber powder, then adding a softening agent and an activator to the pulverized rubber powder, uniformly mixing, and desulfurizing the uniformly mixed material, wherein the desulfurizing process is performed by the following step of continuously conveying the material to a desulfurizing pipeline through a fluidized bed for desulfurizing, the desulfurizing pipeline is divided into five equidistant segments, each segment of the desulfurizing pipeline employs an external heating mode, each segment of the pipeline is subjected to electromagnetic induction heating according to the flowing direction of the material, and the heating power of upstream desulfurizing pipe is higher than that of downstream desulfurizing pipeline. The normal-pressure continuous desulfurizing method provided by the invention overcomes the defects that the prior art has gradual pressure improvement, serious hidden safety, serious environmental pollution caused by wastewater and exhaust gas discharge and high integral energy consumption, has high production efficiency and low energy consumption, and can be widely applied in rubber desulfurization.
Description
Technical field
The present invention relates to a kind of method of desulfurization, be specifically related to a kind of method of normal pressure continuous desulfurization of rubber.
Background technology
The regeneration of waste old realizes the vulcanized rubber desulfurization through chemistry, heat and oxygen and mechanical effect.In this process, the reticulated structure of vulcanized rubber is damaged, and degrades, and most of vulcanized rubber generates linear low molecular rubber hydrocarbon, and small portion becomes the molecular fragment that contains combined sulfur.
At present, the desulfurization regeneration of rubber mainly contains three kinds of process methodes, is respectively oil process, water/oil method and HTHP dynamic desulfurization.These three kinds of methods all belong to producing in pressurized vessel inside clearance formula.Because starting material are complicated and changeable, the fluctuation of its processing parameter intersects makes shoddy product quality integral body on the low side, instability.In addition, these working method corresponding production equipment pressure progressively promote, and potential safety hazard is serious, and the discharging of waste water and gas causes contaminate environment.Need open the heat power consumption that jar is lowered the temperature, charging heats up and waste water and gas is taken away makes overall energy consumption higher.
Summary of the invention
The object of the present invention is to provide a kind of safety performance excellent, the method for energy-saving and environmental protection, normal pressure continuous desulfurization of rubber that product with stable quality is good.
The present invention is achieved in that
The method of normal pressure continuous desulfurization of rubber is that rubber is pulverized, and in the rubber powder of pulverizing, mixes behind adding tenderizer and the acvator then, the material that mixes is carried out desulfurization handle, and desulfurization is handled and comprised the steps:
Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization; The desulfurization pipeline is divided into equidistant five sections; Each section desulfurization pipeline adopts indirect heating; According to the flow direction of material, each segment pipe electromagnetic induction heats, and the power of the desulfurization pipeline in the power ratio heating downstream of the desulfurization pipeline at the heating upper reaches is big.
Scheme further is: the power of each section desulfurization pipeline heating is respectively 25kw, 25kw, 15kw, 15kw, 10kw, and the desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 3 to 4m, and material flowing time in whole desulfurization pipeline is 15 to 20min.
Scheme further is: the desulfurization pipe diameter is 180mm.
Scheme further is: after the desulfurization pipeline comes out, through overcooling, promptly make the rubber powder after the desulfurization at material.
Scheme further is: in process of cooling, in material, spray the water that accounts for material 2 to 3% weight.
Core point of the present invention is: adopt different heating powers that the desulfurization pipeline is heated, because temperature of charge is lower at the beginning, therefore, the power of setting is bigger, is in order to impel temperature of charge to rise to best temperature as early as possible.Along with the rising of temperature of charge, in sweetening process, the most important thing is to keep temperature rather than continue to heat up, therefore along the flow direction of material, heating power reduces gradually.Such setting is in order to improve energy utilization ratio, and energy-saving and production-increase reduces cost.This in addition power setting and pipe diameter are complementary.Wherein in process of cooling, in material, spraying the water that accounts for material 2 to 3% weight also is an innovative point of the present invention, through spray water; Can reduce temperature of charge rapidly, enhance productivity, in addition; The weight of water is also unsuitable too high, through spraying suitable quantity of water, can not influence the quality of rubber powder.
Through technical scheme of the present invention, desulfurization output can reach more than 10 tons in 24 hours, can satisfy the production capacity demand of large-lot producer, and very big economic benefit and social benefit are arranged.
Embodiment
Embodiment one
The method of normal pressure continuous desulfurization of rubber is that rubber is pulverized, and in the rubber powder of pulverizing, mixes behind adding tenderizer and the acvator then, the material that mixes is carried out desulfurization handle, and desulfurization is handled and comprised the steps:
Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization, the desulfurization pipe diameter is 180mm, and is divided into equidistant five sections; Each section desulfurization pipeline adopts indirect heating, and according to the flow direction of material, each segment pipe electromagnetic induction heats; The power of heating is respectively 25kw, 25kw, 15kw, 15kw, 10kw; The desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 3m, and material flowing time between whole desulfurization pipeline is 18min.After the desulfurization pipeline comes out, in material, spray the water account for material 3% weight at material, promptly make the rubber powder after the desulfurization.
Embodiment two
The method of normal pressure continuous desulfurization of rubber is that rubber is pulverized, and in the rubber powder of pulverizing, mixes behind adding tenderizer and the acvator then, the material that mixes is carried out desulfurization handle, and desulfurization is handled and comprised the steps:
Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization, the desulfurization pipe diameter is 180mm, and is divided into equidistant five sections; Each section desulfurization pipeline adopts indirect heating, and according to the flow direction of material, each segment pipe electromagnetic induction heats; The power of heating is respectively 25kw, 25kw, 15kw, 15kw, 10kw; The desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 4m, and material flowing time between whole desulfurization pipeline is 20min.After the desulfurization pipeline comes out, in process of cooling, in material, spray the water account for material 2% weight at material, promptly make the rubber powder after the desulfurization.
Claims (3)
1. the method for a normal pressure continuous desulfurization of rubber is that rubber is pulverized, and in the rubber powder of pulverizing, mixes behind adding tenderizer and the acvator then, the material that mixes is carried out desulfurization handle, and it is characterized in that desulfurization is handled and comprised the steps:
Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization; The desulfurization pipeline is divided into equidistant five sections; Each section desulfurization pipeline adopts indirect heating; According to the flow direction of material, each segment pipe electromagnetic induction heats, and the power of the desulfurization pipeline in the power ratio heating downstream of the desulfurization pipeline at the heating upper reaches is big;
The power of each section desulfurization pipeline heating is from upstream to downstream and is respectively 25kw, 25kw, 15kw, 15kw, 10kw, and the desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 3 to 4m, and the flowing time of material in whole desulfurization pipeline is 15 to 20min;
The desulfurization pipe diameter is 180mm.
2. the method for normal pressure continuous desulfurization of rubber according to claim 1 is characterized in that: after the desulfurization pipeline comes out, through overcooling, promptly make the rubber powder after the desulfurization at material.
3. the method for normal pressure continuous desulfurization of rubber according to claim 2 is characterized in that: in process of cooling, in material, spray the water that accounts for material 2 to 3% weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101238367A CN102212203B (en) | 2011-05-13 | 2011-05-13 | Normal-pressure continuous desulfurizing method for rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101238367A CN102212203B (en) | 2011-05-13 | 2011-05-13 | Normal-pressure continuous desulfurizing method for rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102212203A CN102212203A (en) | 2011-10-12 |
| CN102212203B true CN102212203B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101238367A Expired - Fee Related CN102212203B (en) | 2011-05-13 | 2011-05-13 | Normal-pressure continuous desulfurizing method for rubber |
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| CN (1) | CN102212203B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937059A (en) * | 2014-04-10 | 2014-07-23 | 青岛通力橡胶科技有限公司 | Environment-friendly reclaimed rubber with high tenacity and stable Mooney viscosity and preparation method thereof |
| CN104892973A (en) * | 2015-05-14 | 2015-09-09 | 安徽红太阳新材料有限公司 | Novel devulcanizing regeneration method of waste rubber |
| CN106009034A (en) * | 2016-07-07 | 2016-10-12 | 福建省邵武市恒晖橡胶再生有限公司 | Regenerated rubber desulphurization method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880406A (en) * | 2010-07-08 | 2010-11-10 | 都江堰市新时代工贸有限公司 | Method for normal pressure continuous desulfurization of rubber |
| CN201670818U (en) * | 2010-01-21 | 2010-12-15 | 都江堰市新时代工贸有限公司 | Reclaimed rubber normal-pressure high-temperature continuous desulfurization machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6590042B1 (en) * | 2000-10-06 | 2003-07-08 | Ying Tang | Recycled rubber processing and performance enhancement |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201670818U (en) * | 2010-01-21 | 2010-12-15 | 都江堰市新时代工贸有限公司 | Reclaimed rubber normal-pressure high-temperature continuous desulfurization machine |
| CN101880406A (en) * | 2010-07-08 | 2010-11-10 | 都江堰市新时代工贸有限公司 | Method for normal pressure continuous desulfurization of rubber |
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| CN102212203A (en) | 2011-10-12 |
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