Full-wind-pressure ventilation equipment for fully-mechanized caving retracement working face

Through the ventilation box composed of flexible belt and guide roller, combined with the drive mechanism and guide plate, the problems of ventilation blind spots and blockages during the comprehensive relocation and withdrawal are solved, and flexible ventilation and safe dust reduction are achieved.

CN120402145AActive Publication Date: 2025-08-01SHANDONG JIKOU LUNENG COAL & ELECTRICITY CO LTD YANGCHENG BRANCH
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Patent Information

Application Number
CN202510906598.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-08-01
Estimated Expiration
2045-07-02

AI Technical Summary

Technical Problem

The existing underground ventilation equipment is difficult to cover complex and changeable operating space during the comprehensive release and withdrawal process, and there are ventilation blind spots, and coal seam fragments are prone to block the air duct, affecting the reliability of the ventilation system.

Method used

The ventilation box consisting of a flexible belt and guide roller is combined with the driving mechanism and the guide plate to realize the dynamic air outlet adjustment and airflow division of the flexible belt. It is equipped with a spray mechanism for automatic flow interruption and dust reduction treatment, and eliminates ventilation blind spots through the mechanical structure and prevents fragments from being blocked.

Benefits of technology

Effectively expand the ventilation coverage range, eliminate ventilation blind spots, improve airflow stability and uniformity, reduce energy losses, and ensure equipment operation reliability and operation safety.

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Abstract

The invention relates to the technical field of coal mine underground ventilation, in particular to fully mechanized caving retracement working face full wind pressure ventilation equipment which comprises a ventilation box and an air supply pipe, the ventilation box comprises a flexible belt, two mounting plates and a plurality of guide rollers, the two mounting plates are symmetrically arranged, and the guide rollers are arranged between the two mounting plates along the four side edges of the two mounting plates in an array mode; the two ends of each guide roller are rotationally connected with the mounting plates correspondingly, the flexible belt is wound around the guide rollers, and a box body inner cavity is formed between the flexible belt and the two mounting plates. The ventilation box composed of the mounting plate, the guide rollers and the flexible belt is horizontally arranged, so that the span of the two ends of the ventilation box is enough to cover the form of a working face after fully mechanized caving retracement, in addition, the multiple air outlets in the flexible belt are arranged at equal intervals, it is guaranteed that air can be discharged from the four sides of the ventilation box, the ventilation range is not limited, and the driving mechanism drives the driving rollers to rotate, so that the ventilation efficiency is improved. The flexible belt is driven to rotate around the guide roller, so that the position of the air outlet is dynamically changed, and the ventilation coverage is effectively expanded.
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