An integrated device for partitioning, isolating and directional filling of a mine goaf
By strengthening the initial solidification support of the paste through the structure of the central column and the limiting plate, the problem of insufficient support force in the initial stage of paste filling was solved, and the directional isolation of the goaf and the geological stability during the filling process were achieved, thus ensuring mine safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2026-05-06
- Publication Date
- 2026-06-16
AI Technical Summary
Existing paste filling methods lack sufficient support in the early stages of goaf, leading to easy deformation of the filling material, which affects safe production and geological stability.
It adopts a central column and limiting plate structure. The central column provides basic support, and the limiting plate restricts the solidification and molding of the paste. Combined with the filling bag and pull rope closure, it forms directional isolation and filling support. The paste is delivered by the injection tube, forming a complete support mechanism.
It improves the support effect during the initial solidification process of the paste, enhances the geological stability of the goaf during isolation and filling, and ensures safe production in the mine.
Smart Images

Figure 1 
Figure 2