Cast membrane rim material recycling device

Abstract

The invention discloses a cast membrane rim material recycling device. The cast membrane rim charge recycling device comprises a box body; the upper side of the box body is communicated with a used material conveying pipeline which is arranged in the box body and is internally provided with a conveying screw rod for conveying powder materials; the inlet of the used material discharge pipeline is provided with a baffle cap; a base is arranged below the box body; the base comprises an air ventilation plate connected with the lower end of the box body and a cavity arranged below the air ventilation plate; the cavity is connected with a compressed air source; a refrigerating device is inserted into the cavity; the used material discharge pipeline bypasses the interior of the cavity. According to the invention, used materials in the box body are sprayed into the material discharge pipeline by the air ventilation plate; because small particles of used materials can float easily on the upper layer, the used material entering the discharge pipeline are basically the small uniform particle used materials; the uniformity of used materials in the conveying screw rod is ensured; the stability of extruded used materials is ensured; moreover, the thermal decomposition danger of the materials in the screw rod is reduced.

Description

technical field [0001] The invention relates to a recycling device for cast film edge material. Background technique [0002] During the production process of the casting film equipment, the side material will be cut off and pulverized online, and then sent to the extruder hopper through the fan to mix with the new material before entering the extruder. The hopper has a double-layer structure, the outer layer is fresh material, and the inner layer is powder. The powder conveyed by the fan enters the inner hopper through the cyclone separator. Since the powder is relatively light, there is a compacting screw in the middle of the inner hopper. The powder is extruded to the feed port of the extruder and mixed with the new material. Such as figure 1 As shown: 1 is the extruder, 2 is the powder compacting screw, 3 is the crushed powder conveying pipe, 4 is the cyclone separator, 5 is the air outlet pipe of the cyclone separator, 6 is the inner layer of the hopper, Powder is ...

AI Technical Summary

Problems solved by technology

[0003] The defect of this device is that when the width of the side material changes, the powder delivered to the hopper will also change, and the bulk density of the powder extruded by the compacting screw to the feed port of the extruder will also change, resulting in a thin film thickness. Unstable, and when there is too much powder, the powder will also bridge the feed port of the extruder, resulting in poor feeding

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