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Dedusting hopper of screw extruder

A technology of screw extruder and hopper, which is applied in the field of dust removal hopper of screw extruder, which can solve the problems of poor dust removal effect and easy clogging of filter net, and achieve the effects of reducing clogging, increasing adsorption area and ensuring dust removal effect

Active Publication Date: 2018-10-23
上海紫江彩印包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a screw extruder dust removal hopper to solve the problems of easy clogging of the filter screen and poor dust removal effect

Method used

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  • Dedusting hopper of screw extruder
  • Dedusting hopper of screw extruder

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0018] see figure 1 and 2 As shown, this embodiment provides a screw extruder dust removal hopper, which includes a barrel cover 1, a cylindrical vacuum rotary adsorber 2 is arranged under the barrel cover 1, and a filter screen cover is arranged outside the vacuum rotary adsorber 2 3. The lower surface of the barrel cover 1 is preferably provided with three feeding ports 4, and the three feeding ports 4 are arranged outside the filter screen cover 3, and a closed feeding transition chamber is arranged above the barrel cover 1 5. There are feed pipe 6 and vacuum exhaust pipe 7 protruding outward from the feed transition chamber 5. The vacuum exhaust pipe 7 extends inward and communicates with the vacuum rotary adsorber 2. The feed pipe 6 and the feed transition chamber 5. The three feeding ports 4...

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Abstract

The invention discloses a dedusting hopper of a screw extruder. The dedusting hopper comprises a material barrel cover. A cylindrical vacuum rotary adsorber is arranged on the lower portion of the material barrel cover and externally provided with a filtering net cover. Three feeding openings stretch out of the lower surface of the material barrel cover and are formed outside the filtering net cover in a surrounding mode, and the outlet direction is the tangential direction of the circumference. A closed feeding transition bin is arranged on the upper portion of the material barrel cover, anda feeding pipe and a vacuum exhaust pipe stretch out of the feeding transition bin outwards. The vacuum exhaust pipe extends inwards and communicates with the vacuum rotary adsorber. The feeding pipe,the feeding transition bin and the three feeding openings communicate in sequence. According to the dedusting hopper of the screw extruder, mainly by forming the three feeding openings, particles areemitted from outlets of the three feeding openings in the tangential direction of the circumference, fall spirally around the vacuum rotary adsorber and are continuously stressed by adsorption forcein the falling process, so that foreign bodies such as dust, impurities and drawing wires are effectively removed, and the dedusting effect is ensured.

Description

technical field [0001] The invention belongs to the technical field of screw extruders, in particular to a dust removal hopper of a screw extruder. Background technique [0002] Civil and industrial plastic products are usually made by screw extruders, the principle of which is to heat and melt plastic particles and then blow them, extrude them, and inject them into them. However, when producing high-transparency products, especially when producing photovoltaic reflective films with very thin thickness, impurities such as dust, scraps and filaments in the raw material particles cannot be effectively and completely removed by the existing suction sweeping device, which will lead to production failure. Thin film crystal point particles are serious, and large particles will cause silicon wafers to break when pressing solar panels, and the product is unqualified. [0003] The vacuum dust removal cavity in the existing hopper is flat, and the particles enter from the only feedin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/08B29C47/10B29C31/02
CPCB29C31/02B29C48/271B29C48/287B29C48/288
Inventor 项仁龙陈漫里
Owner 上海紫江彩印包装有限公司
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