Partition isolation filling method for mining inclined working face paste filling

By using the partition isolation filling method on the inclined working surface of the coal mining machine at a large mining height in the deep buried coal seam area, the goaf area is divided into the area to be filled and the sealing area, and the isolation wall and support mechanism are used to seal it, which solves the problems of low paste filling efficiency and top plate collapse, and achieves an efficient and safe paste filling effect.

CN119686796APending Publication Date: 2025-03-25CHINA PINGMEI SHENMA ENERGY & CHEM GRP CO LTD +1
0 Cites 1 Cited by

Patent Information

Application Number
CN202411970268.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In the inclined working surface of the coal mining machine at a high level in the deep buried coal seam area, the filling method of the paste is slow and low in efficiency, resulting in uneven filling of the paste, which easily leads to the collapse of the roof plate, and has problems such as safety risks and high raw material loss.

Method used

The partition isolation and filling method of the paste filling of the inclined working face is used to divide the goaf into the section to be filled and the sealing section, and seal it through the isolation wall and support mechanism to ensure that the paste is filled evenly and supports the roof.

Benefits of technology

The paste filling efficiency and filling rate are improved, the stability of the goaf top plate is ensured, the safety risks of coal mining are reduced, and raw materials and labor costs are saved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of paste filling and plugging, and discloses a partition isolation filling method for mining inclined working face paste filling, which comprises the following steps: S1, sequentially arranging a to-be-filled interval and a plugging interval of a goaf at an interval; s2, two separating walls and two supporting mechanisms are arranged in each blocking interval, and the two separating walls block one sides of the two to-be-filled intervals adjacent to the blocking interval; s3, the tops, the bottoms and the rear portions of all the to-be-filled intervals and the plugging intervals are plugged; the front part of each interval to be filled is plugged by a plugging device connected with the hydraulic branch; the sides, away from the separating wall, of the two to-be-filled intervals located on the outermost side are blocked by rocks on the side portion of the goaf; and S4, paste filling is conducted on the blocked intervals to be filled one by one. According to the partition isolation filling method, partition paste filling is achieved, the partition wall and the supporting mechanism are adopted for blocking, the possibility of paste leakage is greatly reduced, and the filling rate is greatly increased.
Need to check novelty before this filing date? Find Prior Art