Coal mine large-caliber solid material vertical feeding buffer device

Abstract

The invention discloses a coal mine large-caliber solid material vertical feeding buffer device. The coal mine large-caliber solid material vertical feeding buffer device comprises a protective cover,an energy storage damping device and a bridge type damping beam, wherein the protective cover is conical, and the topmost end of the protective cover is a platform surface; a guide shaft is vertically and fixedly arranged at the top end of the protective cover downwards, and the guide shaft is connected with the wall of the protective cover through a plurality of fixing supports; a buffer base iswelded to the bottom of the protective cover, a guide sleeve is vertically arranged in the center of the buffer base, and a guide shaft is inserted into the guide sleeve for fixed connection; and theenergy storage damping device is composed of a plurality of buffer springs, the upper portions and the lower portions of the buffer springs are fixed to the corresponding positions of the fixing supports and the buffer base of the protective cover, each buffer spring is provided with a guide rod, and the guide rods are fixed to the corresponding positions of the fixing supports and the buffer base of the protective cover; and the protective cover is connected with the bridge type damping beam through the buffer base in a sleeved mode. Falling materials can be effectively buffered, deceleratedand then fallen, and the falling materials are scattered to the storage bin at a low speed after being buffered by the protective cover.

Description

technical field [0001] The invention belongs to the technical field of mining filling and mining equipment, in particular to a vertical feeding buffer device for large-diameter solid materials in coal mines. Background technique [0002] With the acceleration of urbanization and urbanization, the phenomenon of coal resource overburden is becoming more and more serious, resulting in a sharp decrease in the total amount of mine resources and restricting the sustainable development of mines. Coal mine filling mining is a kind of filling mining method. Coal mine filling mining can control surface subsidence, protect ground buildings, realize safe mining of "three-down" coal pressing and coal pillars, liberate a large amount of sluggish resources generated by coal mining, and realize mine can Continuous development. In the prior art, when coal mines are filled and mined, gangue is often used as filling material, which is transported to the underground gangue bin by free fall thr...

AI Technical Summary

Problems solved by technology

In the prior art, when coal mines are filled and mined, gangue is often used as filling material, which is transported to the underground gangue bin by free fall through the feeding well, and the gangue is easy to cause impact damage to the underground gangue bin during the free fall process.

[0003] The applicant found the following problems in the prior art through research in use: firstly, the structure of the existing downhole material buffering device is not enough to meet the high-intensity feeding requirements of large-diameter feeding wells; inconvenient

Images