Paper and plastic scraps separation process
A technology of leftovers and paper plastics, which is applied in the field of separation of paper and plastics leftovers, can solve the problems of incomplete environmental protection, social and environmental hazards, no recycling, etc., and achieve the protection of the ecological environment, good effect, and pollution prevention Effect
Inactive Publication Date: 2004-09-15
韦士钱
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Problems solved by technology
From the previous cloth sanitary napkins to disposable paper-plastic composite sanitary napkins, it is widely used, and there are several or dozens of manufacturers of sanitary napkins in major cities. Every year, there are 600 tons of paper-plastic scraps in large factories and small factories. The output is 200-300T, and all the leftover materials in the year are about 5000T. Since they cannot be buried under the soil, they can only be pulled to the incineration site for burning without recycling, which wastes a lot of useful resources.
As a result, it still causes secondary pollution, which cannot completely solve the environmental protection problem, and becomes a major hazard to society and environmental protection.
How to separate the composite leftovers is a big problem, and there is no technology to solve this problem well before the present invention
Method used
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Embodiment Construction
[0007] The present invention will be further described below in conjunction with embodiment. This paper-plastic scrap separation process mainly includes the following steps to realize: 1) Use a boiler to heat the reaction pot through a hot oil pipeline. Leftovers, wherein the weight ratio of tetrachlorethylene solvent and paper-plastic scraps is, tetrachlorethylene solvent: paper-plastic scraps are 10:1, when the temperature reaches about 120 ° C, the plastics are dissolved, and the pulp is foamed and scattered; 2) 1. After the paper and plastic leftovers are dissolved, they are filtered and separated on the centrifuge; 3) The separated pulp is sent to an oven at about 100°C for drying treatment; 4) The liquid and plastic after the pulp is separated are sent to the high-speed The second separation of plastic and liquid is carried out on the separator, and the separated plastic is sent to the oven for drying treatment, and the liquid is sent back to the reaction pot or storage ...
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The present invention relates to a separation process of paper-plastics shorts, said separation process mainly includes the following steps: 1). placing the shorts in a reaction vessel with solvent at 90-140 deg.C; the weight portions ratio of them is as follows: solvent 5-10 portions and shorts 0.5-1 portions; 2). dissolving the shorts, making filtration and separation by using separation machine; 3). feeding separated pulp into oven to make drying treatment; 4). feeding residual liquor and plastics into high-speed separation machine to make secondary separation of plastics and liquor, then making drying treatment in the oven. Said invention can prevent pollution and its technological process is simple, and effect is good.
Description
technical field [0001] The invention relates to a separation treatment process, mainly a paper-plastic leftover material separation process. Background technique [0002] With the rapid development of my country's economic construction, Chinese women are more particular about their own hygiene. From the previous cloth sanitary napkins to disposable paper-plastic composite sanitary napkins, it is widely used, and there are several or dozens of manufacturers of sanitary napkins in major cities. Every year, there are 600 tons of paper-plastic scraps in large factories and small factories. There are 200-300 tons, and all the leftover materials in the whole year are about 5000 tons. Since they cannot be buried under the soil, they can only be pulled to the incineration site for burning with money and effort, and they are not recycled, which wastes a lot of useful resources. The result still causes secondary pollution, can not thoroughly solve the environmental...
Claims
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IPC IPC(8): B09B3/00
Inventor 韦士钱徐美云何建平
Owner 韦士钱