Novel cleaning material for extruder screw and preparation method therefor

A cleaning material and machine screw technology, which is applied to chemical instruments and methods, detergent compositions, soap detergent compositions, etc., can solve the problems of inability to clean the hot runner of the screw and barrel, corrosion of cross-linked pipes, and large damage to equipment and other problems, to achieve rapid penetration and efficient cleaning effect, high mold release, and reduce procurement costs

Inactive Publication Date: 2015-10-14
ZHENGZHOU YIRUN CABLE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many enterprises still use polyethylene resin, waste materials, PVC materials, screw disassembly, fire and knife scraping to clean the extruder screw. This cleaning method cannot clean the screw and barrel hot runner, but will cause secondary pollution
If it is cleaned with polyvinyl chloride material, it will also cause corrosion and pollution to the cross-linked pipeline
And after cleaning with the above method, it is still necessary to unload the die head and dismantle the screw, which is time-consuming, labor-intensive, laborious, and wastes a lot of resources, and at the same time causes great damage to the equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method for a cleaning material for a novel extruder screw, comprising the following steps:

[0027] Step 1: High Speed ​​Mixing

[0028] Get 60Kg linear low density polyethylene LLDPE powder, 20Kg low density polyethylene resin LDPE, 8Kg diethylene glycol butyl ether, 3Kg carbon tetrachloride, 3Kg polyethylene glycol 400, 5Kg ethanolamine, 2KgEBS, 3Kg methyl vinyl silicone oil , 5Kg calcium stearate, 2Kg 10# white oil, 5Kg polyethylene wax, 20Kg talcum powder are added in the high-speed mixer, and mixed at room temperature for 3-5 minutes.

[0029] Step Two: Mixing

[0030] Put the mixed materials in the first step into the banbury mixer for banburying, the banburying temperature is 90-100°C, and the banburying time is 6-8 minutes.

[0031] Step 3: Granulation

[0032] Put the materials mixed in the second step into the parallel twin-screw extrusion granulator for extrusion and granulation. The working temperature of the extruder is set as: 110±5℃ in th...

Embodiment 2

[0034] A preparation method for a cleaning material for a novel extruder screw, comprising the following steps:

[0035] With embodiment 1, difference is: the first step: get 80Kg linear low density polyethylene LLDPE powder, 40Kg low density polyethylene resin LDPE, 10Kg diethylene glycol butyl ether, 5Kg carbon tetrachloride, 5Kg polyethylene glycol Alcohol 400, 8Kg ethanolamine, 3KgEBS, 5Kg methyl vinyl silicone oil, 8Kg calcium stearate, 3Kg 10# white oil, 8Kg polyethylene wax, 30Kg talcum powder.

Embodiment 3

[0037] A preparation method for a cleaning material for a novel extruder screw, comprising the following steps:

[0038] With embodiment 1, difference is: the first step: get 70Kg linear low density polyethylene LLDPE powder, 30Kg low density polyethylene resin LDPE, 9Kg diethylene glycol butyl ether, 4Kg carbon tetrachloride, 4Kg polyethylene glycol 400, 7Kg ethanolamine, 2.5Kg EBS, 4Kg methyl vinyl silicone oil, 7Kg calcium stearate, 2.5Kg 10# white oil, 7Kg polyethylene wax, 25Kg talcum powder.

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PUM

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Abstract

he invention relates to a novel cleaning material for an extruder screw and a preparation method therefor. Preparation raw materials are composed of linear low density polyethylene LLDPE powder, low density polyethylene resin LDPE, diethylene glycol monobutyl ether, carbon tetrachloride, polyethylene glycol 400, ethanolamines, ethylene bis stearamide EBS, methyl vinyl silicon oil, calcium stearate, 10# white oil, polyethylene wax and talcum powder. The preparation method comprises the following steps: mixing at a high speed; and using a banburying and granulating method to prepare a plastic particle, wherein resin and burnt particles remaining inside an extruder can be instantly softened. According to the method, burnt carbide is softened by cutting molecular bonds of polymeric resin, and the adhesion between the resin and the extruder screw, a barrel and a mold is cut, so that a cleaning effect is achieved, only a small amount of the cleaning material is used, and the barrel is not damaged. The product comprises mutiple cleaning agents ingredients that can clean polyolefin materials of different hardness, and meanwhile, can be easily cleaned by other materials with relatively weaker hardness. Frequent use of the cleaning material can ensure safe operation of equipment and prolongs the service service of the extruder.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a novel cleaning material for an extruder screw and a preparation method thereof. Background technique [0002] At present, in the cable manufacturing industry, the cleaning of the cross-linked polyethylene extruder is a big problem. After extruding cross-linked cables for a long time and shutting down, it is necessary to clean and discharge the extruder to eliminate the problems caused by the long-term operation of the extruder. The scorched material produced and the material remaining in the hot runner of the extruder are used to ensure the normal operation of the extruder when it is restarted. At present, many enterprises still use polyethylene resin, waste materials, PVC materials, screw disassembly, fire and knife scraping to clean the extruder screw. This cleaning method cannot clean the screw and barrel hot runner, but will cause secondary pollution. If it is cleaned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D10/06
Inventor 毛润翼
Owner ZHENGZHOU YIRUN CABLE MATERIALS CO LTD
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