CN101880406B - Method for normal pressure continuous desulfurization of rubber - Google Patents

Method for normal pressure continuous desulfurization of rubber Download PDF

Info

Publication number
CN101880406B
CN101880406B CN2010102212213A CN201010221221A CN101880406B CN 101880406 B CN101880406 B CN 101880406B CN 2010102212213 A CN2010102212213 A CN 2010102212213A CN 201010221221 A CN201010221221 A CN 201010221221A CN 101880406 B CN101880406 B CN 101880406B
Authority
CN
China
Prior art keywords
desulfurization
rubber
pipeline
normal pressure
temperature
Prior art date
Application number
CN2010102212213A
Other languages
Chinese (zh)
Other versions
CN101880406A (en
Inventor
肖官禄
Original Assignee
都江堰市新时代工贸有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 都江堰市新时代工贸有限公司 filed Critical 都江堰市新时代工贸有限公司
Priority to CN2010102212213A priority Critical patent/CN101880406B/en
Publication of CN101880406A publication Critical patent/CN101880406A/en
Application granted granted Critical
Publication of CN101880406B publication Critical patent/CN101880406B/en

Links

Classifications

    • Y02W30/702

Abstract

The invention provides a method for the normal pressure continuous desulfurization of rubber, which comprises the steps of: crushing rubber, then adding softening agent and activating agent into the crushed rubber power, evenly mixing the agents with the rubber powder, and desulfurizing the evenly mixed material, wherein the desulfurization comprises the following step that: the material is continuously fed, via a fluidized bed, into a desulfurization pipeline which is equidistantly divided into five sections with each being externally heated, temperature of the five sections of the pipeline is the same, but temperature difference between the sections of the pipeline is present, the heating temperature of the sections of the pipeline in descending order is from 280 DEG C to 240 DEG C in the flowing direction of the material, the interior of the desulfurization pipeline is at normal pressure, the length of each section of the desulfurization pipeline is from 14 to 17 meters, and the flowing time of the material in the entire desulfurization pipeline is from 15 to 20 minutes. The method for the normal pressure continuous desulfurization of rubber according to the invention has the advantages of: good safety, environmental protection, energy saving, stable product performance and high efficiency.

Description

The method of normal pressure continuous desulfurization of rubber

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 it is characterized in that desulfurization comprises the steps:

Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization, the desulfurization pipeline is divided into equidistant five sections, and each section desulfurization pipeline adopts indirect heating; The temperature of every little segment pipe is identical, but has temperature contrast between the adjacent channel, according to the flow direction of material; The temperature of each segment pipe heating is 280 ℃ to 240 ℃ from high to low; The desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 14 to 17m, and material flowing time between whole desulfurization pipeline is 15 to 20min.

Scheme further is: adopt electromagnetic induction to heat.

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.

The method of normal pressure continuous desulfurization of rubber provided by the invention; Adopted the desulfurization pipeline under the normal pressure, structure of container distortion that the dynamic digester of pressing in avoiding adopting causes and the unsafe factor in the pressurized vessel use in continuous high low temperature intersects the sudden change environment; In addition in the present invention, need not add water, avoid the secondary pollution of spent process water, also save the liquid of water, the heat power consumption that gas phase becomes simultaneously, environmental protection and energy saving as working medium.In addition, the thermopnore continuously feeding is adopted in this invention, has solved the equilibrium plasticizing reaction of continuous industry manufacturing requirements and rubber grain, has avoided the gap reaction, and the product performance of production are stable.In addition, the present invention all has strict restriction for curing time and pipe temperature, in dynamic digester desulphurization reaction before, because the rising of temperature can cause the pressure in the container to increase; Increased the insecurity of container, the present invention is owing to adopt normal pressure to add thermally desulfurizing, so the temperature adjustment that can raise easily; Under temperature of the present invention, rubber grain is desulfurization easily, therefore; The also corresponding shortening of whole sweetening process reaction times is from dynamically 2 to 3h of the digester reaction needed be reduced to 15 to 20min, in addition before; Temperature can not be too high, and too high temperature can make the rubber coking, so temperature finally is controlled at 280 to 240 ℃.Material after the desulfurization of the present invention promptly makes rubber powder after overcooling, 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.

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 comprises the steps:

Material is sent into the desulfurization pipeline continuously through thermopnore, and the desulfurization pipeline is divided into equidistant five sections, every segment length 15m; Each section desulfurization pipeline adopts the external electromagnetic induction heating, and the temperature of every segment pipe is identical, but has temperature contrast between the pipeline; According to the flow direction of material, the first segment pipe temperature is 280 ℃, and second section is 270 ℃; The 3rd section is 260 ℃, and the 4th section is 250 ℃, and the 5th section is 240 ℃; The desulfurization pipe interior is a normal pressure, and material flowing time between whole desulfurization pipeline is 15min.After the desulfurization pipeline comes out,, and in material, spray the water account for material 2% weight at material, when temperature of charge is reduced to 60 ℃, promptly make the rubber powder after the desulfurization in the industry through overcooling.

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 comprises the steps:

Material is sent into the desulfurization pipeline continuously through thermopnore, and the desulfurization pipeline is divided into equidistant five sections, every segment length 17m; Each section desulfurization pipeline adopts the external electromagnetic induction heating, and the temperature of every segment pipe is identical, but has temperature contrast between the pipeline; According to the flow direction of material, the first segment pipe temperature is 280 ℃, and second section is 270 ℃; The 3rd section is 260 ℃, and the 4th section is 250 ℃, and the 5th section is 240 ℃; The desulfurization pipe interior is a normal pressure, and material flowing time between whole desulfurization pipeline is 20min.After the desulfurization pipeline comes out,, and in material, spray the water account for material 3% weight at material, when temperature of charge is reduced to 60 ℃, promptly make the rubber powder after the desulfurization in the industry through overcooling.

Claims (2)

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 comprises the steps:
Material is sent into the desulfurization pipeline continuously through thermopnore carry out desulfurization, the desulfurization pipeline is divided into equidistant five sections, and each section desulfurization pipeline adopts indirect heating; The temperature of every little segment pipe is identical, but has temperature contrast between the adjacent channel, according to the flow direction of material; The temperature of each segment pipe heating is 280 ℃ to 240 ℃ from high to low; The desulfurization pipe interior is a normal pressure, and every section desulfurization duct length is 14 to 17m, and material flowing time between whole desulfurization pipeline is 15 to 20min;
Wherein, after the desulfurization pipeline comes out,, in process of cooling, in material, spray the water account for material 2 to 3% weight, promptly make the rubber powder after the desulfurization through overcooling at material.
2. the method for normal pressure continuous desulfurization of rubber according to claim 1 is characterized in that: each section desulfurization pipeline adopts electromagnetic induction to heat.
CN2010102212213A 2010-07-08 2010-07-08 Method for normal pressure continuous desulfurization of rubber CN101880406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102212213A CN101880406B (en) 2010-07-08 2010-07-08 Method for normal pressure continuous desulfurization of rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102212213A CN101880406B (en) 2010-07-08 2010-07-08 Method for normal pressure continuous desulfurization of rubber

Publications (2)

Publication Number Publication Date
CN101880406A CN101880406A (en) 2010-11-10
CN101880406B true CN101880406B (en) 2012-02-01

Family

ID=43052565

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102212213A CN101880406B (en) 2010-07-08 2010-07-08 Method for normal pressure continuous desulfurization of rubber

Country Status (1)

Country Link
CN (1) CN101880406B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212203B (en) * 2011-05-13 2012-12-26 都江堰市新时代工贸有限公司 Normal-pressure continuous desulfurizing method for rubber
CN107141506B (en) * 2015-05-13 2020-06-02 福建省邵武市恒晖橡胶再生有限公司 Reclaimed rubber desulfurization machine
CN104804215B (en) * 2015-05-13 2017-10-03 福建省邵武市恒晖橡胶再生有限公司 A kind of reclaimed rubber sulfur method
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6590042B1 (en) * 2000-10-06 2003-07-08 Ying Tang Recycled rubber processing and performance enhancement
CN101434710B (en) * 2008-12-18 2010-07-14 泰安市金山橡胶工业有限公司 Automatic rubber powder plasticizing process and apparatus thereof
CN201362673Y (en) * 2009-01-16 2009-12-16 杨剑平 Regeneration reaction vessel used for recycling waste rubber

Also Published As

Publication number Publication date
CN101880406A (en) 2010-11-10

Similar Documents

Publication Publication Date Title
CA2747572C (en) An automatic rubber powder plasticizing process and apparatus thereof
CN103708456B (en) The method preparing carbide
RU2014138093A (en) Conversion of heavy fossil hydrocarbons and modernization using radio frequency or microwave energy
NZ603011A (en) Methods for biofuel production
RU2573016C1 (en) Microwave plasma biomass gasifier with entrained flow and gasification method
CN102010924B (en) Method for producing directly reduced iron from coal
CN104004958B (en) A kind of method and apparatus of continuous production VN alloy
UA91109C2 (en) METHOD For DIRECT Reducing iron oxides to metallic iron with the use of coke-oven gas or similar to it GAS
CN202826424U (en) Rubber production device
BR112012019501A2 (en) procedure for the preparation of carbon black pellets.
UA92270C2 (en) apparatus for generating energy and method for generating energy using sensible heat of an offgas during manufacture of molten iron
CN201883114U (en) Circulation device for cooling quenching liquid
CN103014202A (en) Device and method for recovering high-temperature sensible heat of liquid blast furnace slag
WO2015192788A1 (en) Residual oil slurry bed hydrocracking method and device
CN102775113A (en) Method for manufacturing autoclaved bricks by utilizing contaminated acid sludge
CN204981944U (en) Steel scrap preheats heating furnace
CN102449173A (en) Blast furnace operation method
CN204644281U (en) A kind of junked tire low temperature continuous cracking processing units
WO2013185594A1 (en) Coal blending method for coal used in pressurization gasification of shell pulverized coal
CN101531454B (en) A mineral wool boiling melting method of directly using grainy waste slag and coal
CN102942709B (en) Waste tire regeneration processing technology
CN104293998A (en) Method and system of preparing spongy iron by using gas-based shaft furnace
UA116096C2 (en) Method for producing a cross-linked bitumen/polymer composition while reducing h2s emissions
CN103708460B (en) The method preparing carbide
CN203513286U (en) Oxygen-heating-process calcium carbide furnace

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant