Coal mining process of drilling, loading, conveying and anchoring integral machine

Abstract

The invention relates to a coal mining process of a drilling, loading, conveying and anchoring integral machine, which is characterized in that the drilling, loading, conveying and anchoring integral machine is equipped in a digging work surface of a stripped room, a machine head of a second belt conveyer is in lap joint on the tail part of a movable belt conveyer, and three groups of advanced supporting and protecting brackets are equipped and arranged at a through opening of the stripped room. The coal mining process consists of two parts: a process before the perforation of the back mining stripped room and a return airway and a coal mining process of the drilling, loading, conveying and anchoring integral machine during the two-wing recovery of the back mining stripped room, i.e. firstly, before the perforation of the back mining stripped room and the return airway, fore-mining is carried out in posts of the stripped room, an anchoring net is adopted for supporting and protecting, and the circulation progress is between 0.8 and 2.5 m until the return airway is perforated; and secondly, the two-wing coal is recovered in a backwards retreating mode, the recovery sequence between the posts of the stripped room adopts the backwards retreating mode, and advanced supporting and protecting is adopted during the recovery of the two-wing coal posts instead of the anchoring net supporting and protecting. The invention adopts advanced technical equipment, middle-size and small-size coal mines with exhausted resources can realize the repeated mining, and the coal posts and corner coal in large-size and middle-size coal mines can be recovered.

Description

technical field [0001] The invention belongs to underground re-mining and recovery technology, is suitable for re-mining and corner coal recovery after coal mining in traditional warehouses, and in particular relates to a coal mining process integrated with drilling, loading, transporting and anchoring machines. Background technique [0002] The recovery rate of warehouse coal mining in my country is extremely low, only about 30%, especially in the coal fields that were mined by the warehouse coal mining method before the 1990s, the resource recovery rate is even lower. If these coal fields are not re-mined, it will cause a huge waste of coal resources in our country; especially in some mining areas, the lower group of coal has been mined without re-mining, and the upper group of coal will disappear. Due to backward coal mining methods, not only a large amount of valuable coal resources in small and medium-sized mines cannot be recovered, but also there is no advanced mining...

AI Technical Summary

Problems solved by technology

[0009] The content of the present invention is to improve the problems existing in the backward warehouse coal mining method and suspended roof beam mining method in the above mining process, provide advanced technical equipment, realize underground mechanized mining, and make small and medium-sized "resource exhaustion" The mine can realize re-mining, so that the coal pillars and corner coal of large and medium-sized mines can be recovered through the integrated mechanical coal mining process of drilling, loading, transporting and anchoring

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