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Regenerated composite material applicable to manufacturing well rings and well covers

A composite material and manhole cover technology, which is applied in the field of construction engineering materials, can solve problems such as unfavorable production, simplified process procedures, cumbersome proportioning, and reduced hardness, so as to achieve huge economic and environmental benefits, save metal materials, and improve mechanical strength. Effect

Inactive Publication Date: 2013-04-24
民勤县威瑞环保有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, waste plastics are mainly polyethylene, polypropylene and polyvinyl chloride, and polyethylene includes low-density polyethylene and high-pressure polyethylene. The hardness of high-density polyethylene is relatively good; but it still cannot meet the requirements, and all kinds of waste Plastic doping also further reduces the hardness of the material, so waste slag or fly ash is added as a reinforcing agent. Generally, the more reinforcing agent is added, the greater the strength of the final material, and the brittleness that follows. Therefore, in the prior art, the ratio of waste plastics and waste slag or fly ash used as reinforcing agents is controlled at about 1:1, and it is necessary to add a wide variety of additives to adjust the characteristics of the material in order to make It satisfies various performance indexes of well covers and well circles, and the operation is cumbersome and the ratio is cumbersome, which is not conducive to improving production and simplifying process procedures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] A recycled composite material suitable for making well rings and well covers, the components and weight percentages are: 62% waste polyethylene, 33% waste nickel sand, 2% anti-aging agent, 2% rosin, and 1% waste engine oil.

[0016] The technological process of using it to prepare well rings and well covers is as follows: add the above components into the mixing mixer in turn according to the weight percentage under the stirring state, and after mixing evenly at a high speed of 1170 revolutions per minute, add the mixture to the screw together. In the exhaust extruder, mixing and smelting is carried out at a high temperature of 230°C to make the mixture form a viscous composite material, and then it is sent from the screw exhaust extruder to the designed mold without cooling. , and then use a press to close the mold and form it under a high pressure of 315t, and finally get the required well circle and well cover after cooling with water circulation.

example 2

[0018] A recycled composite material suitable for making well rings and well covers, its components and weight percentages are: 61% waste polyethylene, 31% waste nickel sand, 3% anti-aging agent, 3% rosin, and 2% waste engine oil.

[0019] The technological process for preparing the well ring and the well cover is the same as that described in Example 1.

example 3

[0021] A recycled composite material suitable for making well rings and manhole covers. Its components and weight percentages are: waste polyethylene 62%, waste nickel sand 33%, anti-aging agent 2%, coumarone 2%, waste engine oil 1% .

[0022] The technological process for preparing the well ring and the well cover is the same as that described in Example 1.

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PUM

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Abstract

The invention relates to a building engineering material, in particular to a regenerated composite material, which is convenient in matching ratio, simple in operation and low in cost, meets various performance indexes and is applicable to manufacturing well rings and well covers. The regenerated composite material comprises the following components in percent by weight: 60-65% of waste polyethylene, 30-35% of waste nickel sand, 1-3% of anti-ageing agent, 1-3% of rosin and 1-2% of waste engine oil, wherein the coumarone with the same percent can be used for replacing the rosin. Compared with the prior art, the regenerated composite material has the beneficial effects that the waste polyethylene and the waste nickel sand are adopted as main raw materials of the material; under the premise of ensuring the performance indexes, the used amount of the waste nickel sand is reduced, and simultaneously a simpler and effective aid is adopted, so that the resource is saved, the cost is reduced,the environment is protected and large economic benfit and environmental benefit are created; and the compression strength is good, the bearing capability is high, the matching is convenient, the operation is simple, and the use is convenient, so that the regenerated composite material is very beneficial to production and application.

Description

technical field [0001] The invention relates to a construction engineering material, in particular to a recycled composite material suitable for making well circles and well covers. Background technique [0002] On the streets of the city, inspection wells for various purposes can be seen everywhere, such as water supply inspection wells, fire inspection wells, gas inspection wells, electric power inspection wells, communication inspection wells, etc., most of which are made of traditional cast iron inspection wells Manhole covers and well rings, although cast iron manhole covers have a strong bearing capacity, but their material costs and energy consumption are high, and they are easy to corrode and affect all aspects of their performance indicators. Regular inspection is required, and because of their high recovery value, they are often stolen; Whether it is corrosion or theft may cause various accidents, the small ones affect the normal operation of various systems, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L93/04C08L91/00C08L45/02C08K11/00
Inventor 许开强
Owner 民勤县威瑞环保有限责任公司