Raw coal screening and filtering device

By designing a raw coal screening and filtration device with a metal ring and inverted tooth structure, the problem of incomplete separation of raw coal and impurities was solved, achieving safe filtration of raw coal and convenient grate replacement, thus ensuring the normal operation of the coal feeder.

CN224309001UActive Publication Date: 2026-06-02BINZHOU LVTONG THERMAL POWER CO LTD +1
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Patent Information

Application Number
CN202521219257.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-06-02
Estimated Expiration
2035-06-16

AI Technical Summary

Technical Problem

In existing raw coal screening devices, raw materials and impurities cannot be effectively separated, leading to blockage of the raw coal bunker and affecting the safe operation of the coal feeder.

Method used

A raw coal screening and filtration device was designed, comprising a metal ring, inverted teeth, limiting components, and plug-in plates. The raw coal is filtered through the metal ring and grate structure, impurities are scraped off by the inverted teeth, and the detachable grate structure can accommodate raw coal of different specifications.

Benefits of technology

It effectively prevents debris from entering the raw coal bunker, ensures the safe operation of the coal feeder, and facilitates the replacement of the grate according to the specifications of the raw coal, thus extending the service life of the equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of raw coal screening, and discloses a raw coal screening and filtering device which comprises a filtering device and a bin body, the top of the bin body is fixedly connected with a metal block, the filtering device is installed on the top of the bin body, the filtering device comprises a metal ring body, inverted teeth, a limiting assembly and an inserting plate, and the metal ring body is installed on the top of the limiting assembly. The plug board is fixedly connected to the surface of the inner wall of the metal ring body, and the inverted teeth are fixedly connected to the top of the plug board. According to the raw coal screening and filtering device, the metal ring body, the inverted teeth, the metal frame and the grate are arranged, the inverted teeth and the grate can filter poured raw coal, the inverted teeth can scrape sundries in the poured raw coal, the sundries can be effectively prevented from entering a raw coal bin, a nut rotates on the surface of a first threaded rod, and therefore the raw coal can be screened out conveniently. The spiral spring can push the metal ring body to move upwards, so that the metal ring body is separated from the metal frame, and the metal ring body is convenient to disassemble and replace.
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