Self-adaptive pulp shooting machine for uneven inner wall of vertical shaft

By introducing adaptive lifting and pneumatic rotation mechanisms into the wellbore spraying equipment, combined with the high-pressure grouting conveying system, the problems of spraying uniformity and efficiency during construction of the inner wall of the uneven vertical shaft are solved, and a more efficient and uniform spraying effect is achieved, and the structural strength of the inner wall of the vertical shaft is enhanced.

CN119641350AActive Publication Date: 2025-03-18BEIJING CHINA COAL MINE ENG CO LTD +1
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Patent Information

Application Number
CN202411938892.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-18
Estimated Expiration
2044-12-26

AI Technical Summary

Technical Problem

When the existing wellbore spraying equipment is constructed on the inner wall of uneven vertical shafts, the spraying uniformity is poor, the efficiency is low, the cost is high, the durability is low, and it is difficult to adapt to the dynamic changes of complex shapes.

Method used

An adaptive sprayer for the inner wall of the vertical shaft is designed, using an adaptive lifting mechanism and a pneumatic rotating mechanism, combined with a high-pressure grouting conveying system, to achieve accurate, uniform and stable spraying of the inner wall of the vertical shaft.

Benefits of technology

This sprayer can effectively solve the difficulty of uniform spraying in traditional sprayers during construction of the inner wall of uneven vertical shafts, improve the spraying efficiency, reduce slurry waste and cost, enhance the structural strength of the inner wall of the vertical shaft, and prevent formation collapse.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention relates to the technical field of pulp shooting machines, and discloses a self-adaptive pulp shooting machine for vertical shaft inner wall unevenness, and the self-adaptive pulp shooting machine for vertical shaft inner wall unevenness integrates advanced equipment which integrates efficient pulp shooting, self-adaptive adjustment and automatic control. The pipeline conveying mechanism is responsible for accurately conveying high-pressure slurry to the rotary material spraying mechanism, and the rotary material spraying mechanism uniformly sprays the slurry to the inner wall of a vertical shaft in a mist form through high-speed rotation. The position of the self-adaptive lifting structure can be automatically adjusted according to the unevenness of the inner wall of the vertical shaft, it is ensured that the slurry covers all details, and even slurry spraying can be achieved whether grooves or protrusions exist. In addition, the guniting machine is driven by a pneumatic motor, not only adapts to the complex underground environment, but also is high in response speed and can quickly adapt to the change of the inner wall of the vertical shaft. The overall design pays attention to efficiency, stability and durability, manual intervention is reduced through automatic operation, the construction quality and efficiency are improved, and meanwhile material waste and cost are reduced.
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