Filter for granulator

Abstract

The invention discloses a filter for a granulator. The filter comprises a screen plate, an ox horn scraper, a porous flange, a discharging part and a granule discharging flange. The ox horn scraper is matched with a screen plate impurity removal notch, so that impurities and molten materials are effectively separated, and separation of the molten materials is not affected; the ox horn scraper tightly attached to the screen plate to rotate anticlockwise, normal materials are extruded through the screen plate under the extrusion and ox horn scraping and pressing effects, the materials are conveyed, the materials which are not completely molten can be further extruded and molten, the impurities in the materials are separated from the molten materials, and the effect of auxiliary extrusion and melting is achieved; and complete material melting is ensured, the material compactness is good, a good granulating mechanical property is achieved, the strength is high, the purity of a granulated material and the granulating quality are improved, and practicability is good.

Description

technical field [0001] The invention belongs to the field of filtration, and in particular relates to a granulator with a filter inside. Background technique [0002] The screw granulator is a molding machine that can make materials into specific shapes. The molten polymer is extruded from the die, the rotary knife cuts the pellets, and the pellets are cooled and then enter the dryer. However, after the pelletizer works A certain amount of waste will be produced, which needs to be filtered. [0003] In the prior art, the granulator in the Chinese patent CN110757674 A filters impurities through a filter plate, but the separation of impurities in the molten material will strip off the material transportation in the pressure section, and the transportation of impurities will affect the normal material transportation and separation. The efficiency is low, and the separation of impurities during the separation process will affect the extrusion uniformity of the molten material; ...

AI Technical Summary

Problems solved by technology

[0002] The screw granulator is a molding machine that can make materials into specific shapes. The molten polymer is extruded from the die, the rotary knife cuts the pellets, and the pellets are cooled and then enter the dryer. However, after the pelletizer works There will be some waste that needs to be filtered

[0003] In the prior art, the granulator in the Chinese patent CN110757674 A filters impurities through a filter plate, but the separation of impurities in the molten material will strip off the material transportation in the pressure section, and the transportation of impurities will affect the normal material transportation and separation. The efficiency is low, and the separation of impurities during the separation process will affect the extrusion uniformity of the molten material; Chinese patent CN110152556 A is equipped with a horn scraper, which directly extrudes the pellets, and cannot discharge the influence of impurities on the material during melting, resulting in the compactness of the pellets and mechanical strength are affected, affecting the quality of granulation

[0004] In order to filter the impurity materials, the Chinese patent CN206951137U is equipped with a material filtering device at the outlet of the main body of the granulator to effectively filter the waste produced by the granulator; The problem of easy clogging. Although some people try to filter before granulation, there are still problems of difficult design and high requirements for material melting and uniformity. Therefore, it is necessary to develop a new type of granulation with a filter device. On the one hand, the material is melted more uniformly and efficiently, and on the other hand, the melted material is directly filtered to solve the current problems

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