Regeneration pelletizer for worn-out plastic

A waste plastic and granulator technology, applied in the direction of plastic recycling, recycling technology, etc., can solve problems such as messy, small filter surface, affecting production and application, etc., to avoid excessive impurities, improve cleanliness, and prolong use The effect of longevity

Active Publication Date: 2006-04-19
YUNNAN KUNMING SHIPBUILDING DESIGN & RESEARCH INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The filter surface of the ordinary filter of these two structures is small, and the material pressure cannot be automatically detected, and it is impossible to accurately judge whether to replace the filter screen, the effect of filtering impurities is not good, and the quality of the regenerated plastic particles is difficult to control
In addition, in the granulator of the above-mentioned first structure, the plastic is drawn into strips through the die head and enters the cooling device, and is broken into particles after cooling. The cutting surface of the particles is not smooth and regular, and the len...

Method used

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  • Regeneration pelletizer for worn-out plastic
  • Regeneration pelletizer for worn-out plastic
  • Regeneration pelletizer for worn-out plastic

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Embodiment Construction

[0024] Such as figure 1 , figure 2 As shown, the present invention is composed of a vented extruder 1, a filter 2, a cutting granulator 3, a screw conveyor 4, a dryer 5 and an air delivery system 6 connected in sequence.

[0025] Such as image 3 As shown, the exhaust type extruder 1 includes a first-stage screw A and a second-stage screw B, and the first-stage screw A includes a feeding section A1, a compression section A2, a metering section A3, and a mixing section A4. The pressure regulating section A5 of the mixing section; the second-stage screw B includes the exhaust section B1, the sudden change section B2, and the subsequent metering section B3. The ratio of the length to the outer diameter of the screw is 35-45, and 40 is selected in this embodiment; the length ratio of the second-stage screw B to the first-stage screw A is 0.5-0.8, and 0.7 is selected in this embodiment; the mixing section A4 is composed of two The first section is a discontinuous thread section...

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Abstract

A machine for regenerating and granulating the used or rejected plastics is composed of exhaust-type extruder, filter, cutting-granulating unit, screw conveyer, drier and air delivering system.

Description

technical field [0001] The invention relates to the technical field of equipment for recycling waste plastics to produce plastic granules. Background technique [0002] At present, most of the waste plastic recycling granulators sold on the market are ordinary granulators. Its structure mainly adopts the structure of general extruder + ordinary filter + die head + cooling device + crushing device; or the structure of extruder + ordinary filter + die head + eager air cooling. The filter surface of the ordinary filter of these two structures is small, and the material pressure cannot be automatically detected, and it is impossible to accurately judge whether to replace the filter screen, the effect of filtering impurities is not good, and the quality of the regenerated plastic particles is difficult to control. In addition, in the granulator of the above-mentioned first structure, the plastic is drawn into strips through the die head and enters the cooling device, and is brok...

Claims

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Application Information

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IPC IPC(8): B29B9/02B29C47/60B29C47/66B29C47/68B29B17/00B29C48/53B29C48/565B29C48/575B29C48/63
CPCB29C47/6018B29C47/605B29C47/6062B29B17/0036B29C47/6093Y02W30/62B29C48/53B29C48/565B29C48/575B29C48/63
Inventor 张勇许曙光何炬孙旭海翟永明赵益民
Owner YUNNAN KUNMING SHIPBUILDING DESIGN & RESEARCH INSTITUTE
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