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Waste plastic single-screw extrusion granulation equipment and process

A single-screw extrusion and single-screw extruder technology, which is used in the field of single-screw extrusion granulation equipment and technology for waste plastics, can solve the problem of limiting the diameter of the extruder barrel and the inability to clean the filter screen and barrel online. Uneven heating and other problems, to achieve the effect of smooth appearance, good quality and environmental protection

Pending Publication Date: 2017-07-14
唐山鼎业塑材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional extruder heating method adopts the outside of the extruder barrel, and heats the extruder by covering the mica sheet. There are problems of uneven heating of the barrel and slow temperature rise, which limits the barrel of the extruder. Diameter size, output cannot be increased
In addition, ordinary filters have a small filtering area, and the filter screen is easily blocked, and the filter screen cannot be cleaned online. When replacing the filter screen, it must be stopped for replacement, resulting in low production efficiency.

Method used

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  • Waste plastic single-screw extrusion granulation equipment and process
  • Waste plastic single-screw extrusion granulation equipment and process
  • Waste plastic single-screw extrusion granulation equipment and process

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, the present invention will be further described by examples.

[0038] A waste plastic single-screw extrusion granulation equipment, including a forced feeder connected to each other in sequence, a first-stage single-screw extruder, a second-stage single-screw extruder, a second-stage mesh-free die head, and a three-stage single-screw extruder Exit machine and three-stage non-replaceable screen die head;

[0039] The forced feeder includes an upper casing 1, a lower casing 2, a blade 3 and a transmission shaft 5; the upper opening of the upper casing 1 is a feed inlet, the lower opening of the lower casing 2 is a discharge opening, and the upper The casing 1 and the lower casing 2 are matched with each other, and the blades 3 and the transmission shaft 5 are arranged inside. The transmission shaft 5 is provided with six blades 3, and each blade is provided with four fan blades. The angles of the blades are staggered by 15 ...

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Abstract

The invention relates to waste plastic single-screw extrusion granulation equipment and a process, and belongs to the technical field of comprehensive utilization of waste plastics. The equipment comprises a forced feeder, a one-section single-screw extruder, a two-section single-screw extruder, a two-section no-net-change mold head, a three-section single-screw extruder and a three-section no-net-change mold head connected in sequence. The equipment has the beneficial effects of: capability of producing plastic particles with low impurity content, good quality, uniform granularity and smooth appearance, high yield, stable quality, low energy consumption, capability of realizing online filter screen cleaning, environmental protection, and benefiting of the nation and the people.

Description

technical field [0001] The invention relates to a single-screw extrusion granulation equipment and process for waste plastics, belonging to the technical field of comprehensive utilization of waste plastics. Background technique [0002] The recycling and reuse of waste plastics is a part of the resource environmental protection industry and circular economy, and plastic recycling extrusion granulation is one of the important links; at present, the plastic recycling extrusion granulation equipment used by granulation manufacturers is mostly ordinary granulation Machine, its structure mainly adopts the structure of extruder + ordinary filter + die head + cooling device + pelletizer, or extruder + ordinary filter + die head + eager air-cooled or water-cooled structure. The granulation equipment of these two structures generally has the problems of slow feeding and unstable feeding amount. The traditional extruder heating method adopts the outside of the extruder barrel, and h...

Claims

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Application Information

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IPC IPC(8): B29B9/06B29C47/10B29C47/36B29C47/38B29C47/60B29C47/08B29C48/395
CPCB29B9/06B29C48/2735B29C48/285B29C48/375B29C48/397B29C48/505
Inventor 吴瑞岐郑文波李云海郑焕秋孙颖王亚斐杨久志张聪国
Owner 唐山鼎业塑材科技有限公司
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