Automatic constant temperature separation equipment

Abstract

The invention relates to the technical field of waste recycling, in particular to automatic constant temperature separation equipment. A liquid inlet and a liquid outlet of a reaction pipeline are connected to a circulating pool holding additive solutions through pipelines separately, so that the additive solutions can circularly flow in the reaction pipeline, and liquid flowing through a heatingpipe is heated by arranging the heating pipe and a constant temperature heater; the reaction pipeline is internally provided with a rolling shaft, and the rolling shaft is provided with a toggling part with stirring action, and a push part with pushing action, so that aluminum plastic composite packaging materials are discharged after fully reacting with the additive solutions in the reaction pipeline; thus, by using the characteristics that molecules of organic weak acid including acetic acid and formic acid can permeate polyvinyl plastic layers, and aluminum oxides bonding on each layer canbe dissolved, but pure aluminum can not be dissolved, aluminum foils and polyvinyl plastics in the packaging materials are separated.

Description

technical field [0001] The invention relates to the technical field of recycling and utilization of waste products, in particular to an automatic constant temperature separation device. Background technique [0002] Aluminum-plastic composite packaging materials are widely used in the packaging fields of food, medicine, chemicals and daily necessities due to their characteristics of light blocking, constant temperature, non-toxic safety and low cost, such as Tetra Pak’s Tetra Pak series products and some milk-containing beverages Bottle closure materials, etc., all belong to aluminum-plastic composite packaging materials. However, due to the wide application and large amount of aluminum-plastic composite packaging materials, a large amount of non-degradable waste is generated. At present, there are many recycling and utilization of such materials. Incompleteness has brought enormous pressure to environmental protection; in addition, the raw materials for the production of th...

AI Technical Summary

Problems solved by technology

Because the oxide properties of aluminum are very stable, it is difficult to completely separate the two materials bonded together, and the plastic is resistant to acid and alkali erosion, and ordinary organic solvents cannot dissolve or swell it, which brings great difficulties to the recycling of the material. It is more difficult; the material recovery process currently in use is to use the principle that both metal aluminum and alumina are soluble in acid and alkali, put the aluminum-plastic material in a closed boiler, and add alkaline or alkali to the furnace for simmering , using acid-soluble or alkali-soluble methods to dissolve aluminum in aluminum-plastic materials, thereby recycling polyethylene plastic film and paper, and then making aluminum-containing waste liquid into polyaluminum chloride or aluminum sulfate; but this method has environmental pollution , the separation is not complete, the output is low, the cost is high, the problems such as poor product quality; this is what those skilled in the art do not expect to see

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