Process of recovering useful material from waste bag with polyethylene and aluminium film
A polyethylene and bag recycling technology, applied in the field of waste recycling, can solve problems affecting the living environment, etc., and achieve the effect of high quality recycled products, simple method, and short release time
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[0010] The present invention starts from a small trial, determines the process route, and determines the industrial equipment used through multiple pilot tests. In the early stage of the pilot test, a vertical fission furnace was used. Each furnace was fed with 500 kg of material and needed to be heated for 30 hours. In the end, only 100 kg of fuel oil was collected (the oil yield was only 20%). The consumption is too large, reaching 1.5-1.8 tons per furnace. Moreover, after being out of the furnace, part of the polyethylene is still sticking to the aluminum film and cannot be separated clearly. The main reason is that the temperature in the furnace is uneven and the materials are not stirred, so that the polyethylene and aluminum foil cannot be completely separated. In the later stage of the pilot test, a converter was used to obtain a uniform temperature in the furnace, and the materials were fully stirred, and the useful substances were successfully separated and recovered....
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