Coal selectivity evaluation device

By designing a coal selectivity evaluation device and using functional ring plates and hole-adjusting plates to adjust the distribution of coal particles, the problem of coal particle stacking is solved, and the accuracy and uniformity of coal sampling and data collection are achieved, with a wide range of applications.

CN120268653BActive Publication Date: 2025-09-30ANHUI UNIV OF SCI & TECH
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Patent Information

Application Number
CN202510532016.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2025-09-30
Estimated Expiration
2045-04-25

AI Technical Summary

Technical Problem

Coal particles tend to accumulate in layers on the conveyor belt, affecting the accuracy of subsequent sampling and data collection, resulting in large errors in the coal selectivity evaluation results.

Method used

A coal selectivity evaluation device was designed, which included a screening bin, a filter screen plate, a reduction device and a functional ring plate. The distribution of coal particles was adjusted by inserting horizontal plates and adjusting hole shifting plates on the functional ring plate, so that the coal particles were evenly arranged in a stepped manner on the conveyor belt to avoid stacking. The screening capacity was achieved by using a motor to drive the functional ring plate to rotate.

Benefits of technology

It achieves uniform distribution of coal particles on the conveyor belt, improves the accuracy of sampling and data collection, reduces the error in the results of coal selectivity evaluation, and has a wide range of applications and flexible operation.

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Abstract

The present invention discloses a device for evaluating the selectivity of coal, and relates to the technical field of coal selectivity. It comprises: a screening bin, a feeding bin fixed on the top of the screening bin, a filter screen plate horizontally arranged in the cavity of the screening bin, a reduction device connected to one side of the screening bin, a collection bin arranged on one side of the reduction device, a conveying bin arranged at the front end of the collection bin, a data acquisition device installed at the upper end of the conveying bin, and a conveyor belt portion arranged in the cavity of the conveying bin; it also comprises: a functional ring plate, which is placed in the cavity of the conveying bin, and the side of the functional ring plate is provided with insertion holes distributed in a circular array; an insertion plate, which is provided on one side of the functional ring plate, and the front end of the insertion plate is fixed with an insertion protrusion extending into the insertion hole groove. The present invention will cause the coal gangue particles moving along the surface of the adjusting hole moving plate to fall along the trapezoidal gap, and coal gangue particles of different particle sizes will fall into different positions of the trapezoidal hole, thereby achieving the step-by-step position of the coal gangue particles falling onto the conveyor belt portion, making the distribution of the coal gangue particles more uniform and reasonable.
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