Bidirectional material impacting method and bidirectional material impacting device

Abstract

The invention belongs to the field of excavation and particularly relates to a bidirectional material impacting method suitable for excavation on coal walls or rock walls and a bidirectional material impacting device for realizing the method. The bidirectional material impacting device comprises an impact rod, impact heads, an impact drive mechanism and the like, wherein the impact heads are arranged at two ends of the impact rod, the impact drive mechanism drives the impact rod to reciprocate, and the impact rod drives the impact heads to perform impaction in a reciprocating way. According to the invention, forward cut-material mining and backward cut-material mining are completed in a manner of not turning the impact heads.

Description

technical field [0001] The invention belongs to the field of mining, in particular to a method and a device for bidirectionally impacting materials suitable for mining coal walls or rock walls. Background technique [0002] The currently widely used mining equipment is the drum mining machine. Its working principle is milling type blanking, which determines that the crushing of this mining method is relatively large, especially in the state of compressive stress, which consumes a lot of energy, reduces production efficiency and block material rate, and produces a lot of dust during the crushing process. It has caused problems such as bad mining environment and potential safety hazards. [0003] With the development of mining technology, equipment for taking lump coal by reciprocating impact has appeared because: [0004] (1) Lump coal is a necessity for the development of the national economy [0005] (2) The economic value of bulk coal is more than twice that of crushed ...

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Problems solved by technology

[0006] (3) The equipment for collecting large pieces of mineral material does not fully crush the mineral material layer. When the equipment is working, it is energy-saving and environmentally friendly, with low power consumption and less dust

[0007] For example, the patent No. 201120056230.1 is a reciprocating impact shearer such as a high-efficiency block coal scraper. However, many reciprocating impact shearers have a single-directional arrangement of the impact head. When reverse mining, the fuselage must be turned to realize the reverse direction. Coal mining and other problems, but due to the small underground space, the general mining lane is less than 6 meters, and the length of the fuselage is more than 8 meters, the problem of turning the fuselage is difficult to solve, and even if the fuselage can be turned, it will consume a lot of manpower, material resources and resources. Therefore, the whole machine must be reversed before the mining can be continued. Due to the heavy weight of the impact head at one end of the impact rod, the weight of one end of the impact rod is too heavy and the weight of the other end is too light. It is easy to cause weight imbalance during reciprocating impact Breaking off the impact rod reduces the service life of the impact mining device and increases power consumption

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