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Mechanical regeneration method for rubber burrs

A flash and mechanical technology, which is applied in the field of recycling and utilization of product flash waste after rubber vulcanization, to achieve the effect of reasonable process, good performance and saving production cost

Inactive Publication Date: 2012-07-11
厦门市金汤橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently there is no real mechanical method for recycling waste vulcanized rubber other than microwave and ultrasonic methods

Method used

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  • Mechanical regeneration method for rubber burrs
  • Mechanical regeneration method for rubber burrs
  • Mechanical regeneration method for rubber burrs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: Flash regeneration process of styrene-butadiene rubber.

[0018] Step 1: Sorting styrene-butadiene rubber from the rubber flash, first removing iron filings and impurities, and then classifying according to the hardness grade with 10 degrees as grade 1;

[0019] The second step: the crushing of rubber flash. Put the styrene-butadiene rubber of the same hardness level into the crusher for crushing. According to the model CSJ-400A of the crusher, the amount of each input is 300 grams. The temperature of the crusher needs to be Control it below 100°C. When the temperature is higher than 100°C, turn on the cooling water for cooling, and the crushed flash powder is also classified and stored.

[0020] The third step: mechanical treatment of rubber flash. First heat the crushed flash at 100°C for 20 minutes, and then carry out thin pass extrusion on the mill. The temperature of the rollers of the mill is controlled at 80°C±10°C. The roller distance of the mill ...

Embodiment 2

[0022] Embodiment 2: the flash regeneration process of nitrile rubber.

[0023] Step 1: Sorting out the nitrile rubber from the rubber flash, first remove the iron filings and impurities, and then classify according to the hardness grade with 10 degrees as grade 1;

[0024] The second step: the crushing of rubber flash, put the nitrile rubber of the same hardness level into the crusher for crushing, the amount of each input is 300 grams, the temperature of the crusher must be controlled below 100 ℃, the temperature is higher than At 100°C, turn on the cooling water for cooling, and the crushed flash powder is also classified and stored.

[0025] The third step: mechanical treatment of rubber flash. First heat the crushed flash at 100°C for 20 minutes, and then carry out thin pass extrusion on the mill. The temperature of the rollers of the mill is controlled at 80°C±10°C. The roller distance of the mill is Adjust it to 0.15mm±0.08mm, and the weight of the flash edge for each...

Embodiment 3

[0027] Embodiment 3: Flash regeneration process of EPDM rubber.

[0028] Step 1: Sorting out the EPDM rubber from the rubber flash, firstly remove the iron filings and impurities, and then classify according to the hardness level with 10 degrees as 1st grade;

[0029] The second step: the crushing of rubber flash. Put the EPDM rubber of the same hardness level into the crusher for crushing. The amount of each input is 300 grams. When the temperature is higher than 100°C, turn on the cooling water for cooling, and the crushed rubber flash powder is also classified and stored.

[0030] The third step: mechanical treatment of rubber flash. First heat the crushed flash at 100°C for 20 minutes, and then carry out thin pass extrusion on the mill. The temperature of the rollers of the mill is controlled at 80°C±10°C. The roller distance of the mill is Adjust to 0.15mm±0.08mm, the weight of the rubber flash for thin-pass extrusion is 8kg each time, add 2 grams of stearic acid for ea...

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Abstract

The invention discloses a mechanical regeneration method for rubber burrs. A mechanical method is adopted to treat the rubber burrs and destroy molecular chains of the rubber burrs, and has no pollution in the treating process; and the reclaimed rubber after the treatment can be processed into new rubber products. The method comprises the following steps of sorting classification of the burrs, crushing of the burrs, mechanical treatment of the burrs and regenerative utilization processing of the burrs. When the reclaimed rubber of the rubber burrs is processed into the new products, the reclaimed rubber can account for 20 to 50 percent of a total rubber mixing material, so that production cost of the products is effectively saved, the loss that the rubber burrs are directly used as waste is avoided, and great economic benefit is brought to rubber manufacturers.

Description

technical field [0001] The invention discloses a mechanical regeneration method for rubber flash, which belongs to the technical field of regeneration and utilization of product flash waste after rubber vulcanization. Background technique [0002] Rubber flash is derived from scraps or unqualified semi-finished products when vulcanized rubber semi-finished products are repaired. According to incomplete statistics, millions of tons of rubber flash are produced every year in the world. Since rubber flash cannot be used as raw rubber or raw rubber to be directly processed into molding products, its treatment method is directly scrapped and discarded or recycled by rubber flash manufacturers as raw materials for reclaimed rubber. How to effectively use rubber flash is a problem for rubber product manufacturers. [0003] The traditional recycling technology of waste rubber is to process the vulcanized rubber through physical and chemical processes such as pulverization, heating, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B17/00
CPCY02W30/62
Inventor 何龙河
Owner 厦门市金汤橡塑有限公司
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