Recovery and reutilization method of waste composite insulator silicon rubber material

A composite insulator, silicone rubber technology, applied in the direction of mechanical material recovery, recycling technology, plastic recycling, etc., can solve the problems of resource waste, space occupation, pollution and so on

Active Publication Date: 2014-03-26
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While solving the pollution problem of waste composite insulator silicone rubber materials, it can turn waste into treas...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Take the clinker produced in the production process of the composite insulator, decompose it into small rubber pieces of 10×10(cm) on the stainless steel operating table, and then crush it on the rubber crusher. During the crushing process, add aluminum hydroxide powder with 10% rubber mass, The crushed colloidal granules are sieved, and a 2mm sieve is selected to obtain rubber granules with a diameter of 2mm.

[0025] The obtained rubber particles are further cryogenically crushed, and liquid nitrogen is used as the cold source to exchange heat with the rubber particles to become embrittled. The cryogenic temperature of the rubber is -80°C, and the embrittled silicone rubber is subjected to countless impacts in the crushing chamber. , shearing, and friction finally become fine particles, control the material temperature and crushing time, and finally collect 200 mesh rubber powder.

[0026] Put the rubber particles into the ethanol solution containing 15% (mass fractio...

example 2

[0028] Take the leftovers produced during the production of composite insulators, put them into a wire mesh basket, and then put them into an ultrasonic cleaning machine with an inner wall of 2000×1000×800 (mm) (the ultrasonic wave is set on 3 sides). The ultrasonic cleaning machine is equipped with mechanical vibration, and the cleaning liquid is water. , using electric heating to adjust the cleaning temperature ≥ 10 ℃. Firstly, shake mechanically for 15 minutes, then ultrasonically clean for 5 minutes, take out the silicone rubber material, rinse, cool it, and dry it in a common oven at 60°C for 2 hours.

[0029] The cleaned silicone rubber material is crushed on a rubber crusher. During the crushing process, an ethanol solution containing 15% (mass fraction) A151 can be added as a grinding aid. The crushed rubber particles are sieved, and the rubber particles with a diameter of 2 mm are obtained by selecting a 2 mm mesh. .

[0030] The obtained rubber particles are further...

example 3

[0034] Take the defective products of 35kV grade in the production process of composite insulators, put them into the inner wall 2000×1000×800 (mm) ultrasonic cleaning machine (the ultrasonic wave is set on 3 sides), the ultrasonic cleaning machine is equipped with mechanical oscillation and brush cleaning, and the cleaning liquid is water , using electric heating to adjust the cleaning temperature ≥ 10 ℃. First, mechanical vibration and brush cleaning for 15 minutes, then ultrasonic cleaning for 5 minutes, take out the composite insulator, rinse, cool it, and dry it in a common oven at 60°C for 2 hours.

[0035] The metal fittings at both ends of the composite insulator are fixed (the fixed end is rotated synchronously) on the stainless steel operating table, and the mechanical arm cutter cuts and peels off the surface silicone rubber material. The cut silicone rubber material is crushed on a rubber crusher. During the crushing process, an appropriate amount of water can be a...

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Abstract

The invention belongs to the technical field of composite insulators, and particularly relates to recovery and reutilization of a waste composite insulator silicon rubber material. The method comprises the following steps: recovering a waste composite insulator silicon rubber material, cleaning, and crushing, thus obtaining composite insulator silicon rubber powder; performing surface modification or regeneration treatment on the composite insulator silicon rubber powder, thus obtaining modified or regenerated composite insulator silicon rubber powder; and using one or more of the composite insulator silicon rubber powder and the modified/regenerated composite insulator silicon rubber powder as a rubber powder filler, wherein the waste composite insulator silicon rubber material comprises defectives, waste and scraps generated in composite insulator manufacturing as well as structured silicon rubber, cured rubber and other materials in a composite insulator silicon rubber refining process. According to the invention, the problem on recovery and regeneration of waste composite insulators in a power grid is solved, and space occupying, environmental pollution and resource waste caused by the waste composite insulator silicon rubber are avoided.

Description

technical field [0001] The invention belongs to the technical field of composite insulators, in particular to a method for recycling and reusing silicon rubber materials of waste composite insulators. Background technique [0002] Since the research and use of composite insulators abroad began in the 1950s, the development and application of composite insulators has a history of more than 50 years. The research and development of composite insulators in my country began in the early 1980s. Although it started late, it has a high starting point. On the basis of absorbing foreign experience and lessons, we developed and produced high temperature vulcanized silicone rubber insulators. Domestic composite insulators were hung on the grid for the first time in 1985, and were used in large quantities in AC and DC power grids in 1995. Since then, they have been widely praised by the production and operation departments, and have also attracted the attention of the design department...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08J11/04C08K3/22C08K5/05C08K5/544C08K5/5435B29B17/00B29B17/04C08L75/04C08L63/02C09D183/04C09D175/04C09D163/02
CPCY02P20/143Y02W30/52Y02W30/62
Inventor 曹宏伟朱莉娜吴文龙
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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