Multi-stage coal crushing device

By designing a multi-stage coal crushing device, including stirring, filtration and recycling, recycling and secondary crushing mechanisms, the existing coal crushing device has solved the problems of poor crushing effect and uneven grains, and achieved more efficient and uniform crushing effect and higher production efficiency.

CN119680724AActive Publication Date: 2025-03-25华电江苏能源有限公司
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Patent Information

Application Number
CN202411924706.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-25
Estimated Expiration
2044-12-25

AI Technical Summary

Technical Problem

The existing coal crushing devices have poor crushing effect in actual applications and are prone to serious unevenness in the size of coal particles, resulting in reduced production efficiency and increased costs.

Method used

A multi-stage coal crushing device is designed, including a crushing box, a stirring mechanism, a filtration and recovery mechanism, a circulation mechanism and a secondary crushing mechanism. The coal is mixed evenly through the mixing mechanism, the filtering and recycling mechanism recycles the unmilled coal, the circulation mechanism re-enters the crushing process, and the secondary crushing mechanism further crushes the coal to ensure the crushing effect and uniformity.

Benefits of technology

The coal crushing effect is improved, the uniformity of crushing size is ensured, resource waste is reduced, the crushing quality of the device is enhanced, and production efficiency is improved.

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Abstract

The invention discloses a multistage coal crushing device, and relates to the technical field of coal processing, the multistage coal crushing device comprises a crushing box, the top of the crushing box communicates with a first coal feeding hopper and a second coal feeding hopper, and the bottom end of the inner wall of the crushing box is rotatably provided with a plurality of first crushing rollers; one end of each first crushing roller penetrates out of the crushing box and is fixedly sleeved with first gears which are in meshed connection with each other, a mounting frame is fixedly arranged on the outer wall of the crushing box, a driving motor is arranged on the mounting frame, and the output end of the driving motor is in transmission connection with the end of one first crushing roller; a filtering and recycling mechanism used for filtering coal subjected to primary smashing is arranged on the inner wall of the portion, at the bottom of the first smashing roller, of the smashing box, a secondary smashing mechanism capable of smashing the coal again is arranged at the lowest end of the filtering and recycling mechanism, and by arranging the multiple stages of smashing mechanisms, coal raw materials are subjected to primary smashing and secondary smashing, and the smashing effect is more thorough; the crushing efficiency is improved, the uniformity of the crushed coal size is ensured, and the crushing quality of the device is enhanced.
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