Foaming waste low-temperature cracking extruding machine and extruding method

Abstract

The invention discloses a foaming waste low-temperature cracking extruding machine and an extrusion method, and belongs to the field of waste plasticizing extrusion. The foaming waste low-temperaturecracking extrusion method comprises the steps that a, a foaming waste cracking extrusion system is established, the foaming waste cracking extrusion system comprises a driving mechanism, an extrusionmechanism, and a feeding mechanism, and the feeding mechanism is connected with the extrusion mechanism; the extrusion mechanism comprises an extrusion screw and a screw barrel, the screw barrel is provided with a heating part, and the driving mechanism is connected with the extrusion screw in a transmission mode; and the extrusion screw comprises a connecting section, a feeding compression section, a crushing section, and a grinding section; b, the screw barrel is preheated by the heating part; c. the extrusion screw is driven through the driving mechanism to idle at a speed of no more than 40r / min; rotation speed of the extrusion screw is increased, preliminary feeding is conducted, and at the same time, the driving mechanism provides a low-temperature of 165 to 190 degrees; d, after discharging is normal, the extrusion screw rotates at a speed of 40 r / min to 50 r / min and keeps feeding; and e, discharged materials are collected. According to the foaming waste low-temperature crackingextruding machine and the extrusion method, low-temperature plasticizing extrusion is realized, waste recycling utilization rate is high, and effects of energy saving and environmental protection areachieved.

Description

Technical field [0001] The invention relates to an extruder, and more specifically, to a low-temperature foam-cracking extruder for foaming waste and an extrusion method. Background technique [0002] Foaming materials such as rubber, plastics, and rubber-plastics will produce a lot of waste. Waste disposal has always been a problem. If these wastes are thrown away directly, not only will they cause a lot of waste, but these wastes are difficult to degrade by themselves, which will cause great pollution. Therefore, these waste materials are usually processed and reused. The current common waste processing method is to use an extruder to plasticize and extrude these waste foam materials. Since the foamed material will form a thermal insulation structure, it is difficult for the external temperature to penetrate into the interior, while the existing extruder has a relatively simple structure and single function, and it is difficult for the external temperature to penetrate the foam...

AI Technical Summary

Problems solved by technology

[0002] Foaming materials such as rubber, plastic, and rubber-plastic community will produce a large amount of waste, and waste disposal has always been a problem. If these wastes are thrown away directly, it will not only cause a lot of waste, but also these wastes are difficult to degrade by themselves, which will cause great pollution , Therefore, these waste materials are usually processed and reused. The current common waste treatment method is to use an extruder to plasticize and extrude these waste foam materials.

Because the foam material will form a thermal insulation structure, it is difficult for the external temperature to penetrate into the interior, and the existing extruder has a relatively simple structure and a single function, and it is difficult for the external temperature to penetrate into the foam material. When processing these waste materials, it usually needs to be heated at a high temperature of about 350 °, so that the external temperature can penetrate into the interior of these waste materials, so that these waste materials can be completely plasticized

However, if high-temperature treatment is used, a large amount of smoke will be generated during the waste treatment process, which will greatly pollute the environment, and high-temperature treatment will destroy the performance of the material. The quality of the processed material is only slightly better than that of the filler, so it cannot be used in large quantities. At the same time, generating a high temperature of about 350° also consumes more energy, so that the cost of waste treatment is very high and its production capacity is relatively low

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