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Desulfurization method of rubber and apparatus thereof

A technology for rubber and waste rubber, applied in the field of vulcanized rubber desulfurization, can solve the problem of insufficient utilization of waste rubber, and achieve the effects of high usable value, high efficiency and low noise

Inactive Publication Date: 2007-02-07
马如琦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, above-mentioned several methods all have different defectives, at present, my country has tens of millions of tons of waste rubber every year that cannot be fully utilized, and also imports several million tons of rubber raw materials from abroad every year

Method used

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  • Desulfurization method of rubber and apparatus thereof
  • Desulfurization method of rubber and apparatus thereof
  • Desulfurization method of rubber and apparatus thereof

Examples

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Embodiment Construction

[0023] One embodiment is listed below, and the present invention is further described in conjunction with three accompanying drawings. However, the present invention is not limited to this one embodiment.

[0024] Taking EPDM vulcanized rubber as an example, put 500 kg of waste EPDM rubber particles into it, after crushing the waste rubber into 4-10mm particles, add the screening, magnetic separation, and feeding devices into the microwave oven, and the temperature of the microwave oven is controlled at 160 ~250 degrees Celsius, use microwave energy to desulfurize rubber particles for ten minutes, and directly discharge them into the feed port of the extruder through the microwave oven outlet, the temperature is controlled at 160-250 degrees Celsius; the temperature of the cooling system of the extruder is controlled at 120-100 degrees Celsius , after plasticizing and filtering through the extruder, the available rubber raw materials are produced. The time used for the trial p...

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Abstract

The invention discloses a rubber desulfurizing method and device, which comprises the following steps: grinding the sulfured rubber; sieving; cobbing; placing the desulfurized material in the feed hole of squeezer; plasticizing; cooling; filtering. The device contains grinder, sieving machine, cobber, feeder, microwave oven, squeezer, filter and packer, whose specific technological flow path and equipments are displayed in the instruction.

Description

technical field [0001] The present invention relates to a rubber recycling technology method and its device, in particular to a vulcanized rubber desulfurization method and a complete set of device for continuous production of regenerated rubber. Background technique [0002] In terms of desulfurization and reuse of existing vulcanized rubber, physical methods (grinding vulcanized rubber) and chemical methods (far-infrared high-temperature desulfurization method and desulfurization method by adding desulfurization agent) are used for desulfurization. Especially poor; the chemical method has large investment, high cost, low efficiency, high labor intensity, and the production process is prone to produce harmful gases, causing pollution, and the desulfurization effect is not ideal. Although the use of microwave energy has high efficiency and good desulfurization effect, it is only limited to the experimental research stage in our country, and it has not solved the problems of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10B29B17/00B29C47/38B29C47/66B29C47/92B29C47/68B29C47/08B29C48/395B29C48/92
CPCY02W30/62
Inventor 马如琦
Owner 马如琦
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