Multiple-screw extruding device for refining forming of regenerated rubber powder and refining method

A technology for reclaiming rubber and screw, applied in the multi-screw extrusion device and refining field, can solve the problems of low-end safety hazards, low automation, low production efficiency, etc. The effect of improving production efficiency

Active Publication Date: 2016-05-25
CHINA RUBBER RESOURCE REGENERATION QINGDAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the refining and kneading processing of reclaimed rubber powder in the reclaimed rubber industry mostly adopts the traditional "three machines and one line" or "four machines and one line" refining and sheeting method to obtain reclaimed rubber with excellent processing performance and mechanical properties; The production method has low degree of automation, high labor intensity, low production efficiency, serious smoke emission in open production, low-end technology and serious safety hazards

Method used

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  • Multiple-screw extruding device for refining forming of regenerated rubber powder and refining method
  • Multiple-screw extruding device for refining forming of regenerated rubber powder and refining method
  • Multiple-screw extruding device for refining forming of regenerated rubber powder and refining method

Examples

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Embodiment Construction

[0024] A screw used for refining recycled rubber powder, including an extrusion conveying section, a shearing section and a shearing conveying section;

[0025] The extrusion conveying section includes the first conveying thread element 1, the second conveying thread element 1', and the third conveying thread element 1", and the pitch relationship of the three conveying thread elements is as follows: the first conveying thread element 1 pitch P1>the second The pitch P2 of the conveying thread element 1'>the pitch P3 of the third conveying thread element 1", at least one first shearing thread element 2 is arranged between the conveying thread elements;

[0026] The shearing section includes at least one second shearing screw element 2' and a fourth conveying screw element, and can optionally be combined with a reverse screw element 3, a mixing screw element 4, and a strong shearing screw element 5, the first Four conveying thread element pitch P4≤P3;

[0027] The shear conveyi...

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Abstract

The invention relates to a multiple-screw extruding device for refining forming of regenerated rubber powder and a regeneration method, and adopts special screws to distribute homodromous / heterodromous parallel structures, triangular structures and cylindrical structures. Through the decomposing of traditional technical effect, closed and continuous refining forming of regenerated rubber powder is realized through different types of thread elements, and the disadvantages of serious pollution, low labor efficiency, high intensity and low automation degree of the traditional open production technology are effectively avoided.

Description

technical field [0001] The invention relates to a multi-screw extruding device and a refining method for refining and forming recycled rubber powder, belonging to the field of waste rubber recycling. Background technique [0002] With the rapid development of the world economy, my country has become the world's largest rubber consumer and the world's largest producer of waste rubber. my country's raw rubber resources are in short supply. In 2014, only natural rubber imported 4.2 million tons. Rubber supply and demand Quite contradictory. As an effective supplement to rubber raw materials, regenerated rubber has become the third indispensable rubber raw material system. Therefore, the recycling of waste rubber is of great significance to the development of my country's rubber industry. [0003] With the implementation of the national environmental protection policy, traditional low-end and backward production equipment and processes have been eliminated. At present, the refi...

Claims

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Application Information

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IPC IPC(8): B29B9/06B29C47/40B29C47/60
CPCB29B9/06B29C48/402B29C48/505B29C48/535
Inventor 沈军谭钦艳郭素炎
Owner CHINA RUBBER RESOURCE REGENERATION QINGDAO
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