A solid filling inclined feeding method

Abstract

The invention discloses a solid filling inclined material feeding method, which comprises the following steps: an inclined shaft is constructed in the direction of coal seam mining, a material conveying passage is mounted in the inclined shaft, a feed bin communicated with the outlet of the inclined shaft is constructed at the upper part of a transportation roadway, and a feeding machine connected with a feeding belt machine is mounted at the outlet of the feed bin; when the inclined shaft performs feeding, the solid filling material is conveyed into the feed bin quickly through a vibrating motor, transferred to the feeding belt machine via the feeding machine, and conveyed on the coal face via the feeding belt machine. The solid filling material can slide downwards quickly and can satisfy the real-time controllability of speed, and the defect of batch charging of a batch charging system is avoided. The method is simple, convenient to operate, high in production efficiency, low in cost and excellent in use effect.

Description

technical field [0001] The invention relates to a solid filling inclined feeding method, which is especially suitable for the coal mining operation of the solid filling goaf in underground coal mines. Background technique [0002] With the development of the economy and the progress of society, a consensus has been reached on corporate social responsibility. In order to protect scarce resources, the state has issued a series of policies to urge enterprises to change the past "predatory" mining methods, forcing enterprises to increase resource recovery rates and use of associated resources. Rate. The "three-down" coal mining has always been an important issue worthy of attention. According to incomplete statistics, at present, the "three-down" coal pressing in the production mines of the unified coal mines in my country has reached 13.79 billion tons, of which 9.468 billion tons have been built, accounting for 69% of the total coal pressure. In order to improve the input and...

AI Technical Summary

Problems solved by technology

Because the roof of the goaf is affected by the pressure of the overlying strata before filling, it will have a large subsidence, which will affect the filling operation and filling effect of the goaf. The safety of the working space and the support that can realize the filling of solid waste in the goaf are one of the keys to the realization of this technology

A coal mining solid filling method disclosed in application number 200910033721.1 and a large vertical depth solid feeding system for filling coal mining disclosed in application number 200920046255.6 have achieved good results by directly feeding vertically, but this The way of feeding solid materials is to directly put the waste from the ground to the underground of several hundred meters. This way of feeding the materials will have too much impact on the buffer and it is difficult to control the speed of the materials.

Images