Back waste rock throwing guniting filling system and method based on fully-mechanized mining frame

A technology of spraying and erecting, which is applied in the direction of filling, mining equipment, earth cube drilling and mining, etc. It can solve the problems of easy sliding and falling of gangue to the roof, poor control of the roof, and easy shrinkage, etc., and achieves high mining efficiency. The effect of controlling the sinking of the roof and increasing the rate of roof connection

Pending Publication Date: 2022-04-29
XINWEN MINING GROUP
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  • Claims
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Problems solved by technology

The main reasons are as follows: 1. The post-filling of the fully-mechanized mining frame is raw gangue filling without any cementing material and additives. After the roof sinks after filling, it is prone to shrinkage, low strength, and poor control of the roof; 2. After the fully-mechanized mining frame The bottom unloading scraper conveyor suspended by the tail beam has a certain distance from the roof, and this part of the space is difficult to tamp with the tamping mechanism; 3. When the tamping mechanism is tamping, it is easy to slip and difficult to connect to the top when the tamping mechanism is pushing

Method used

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  • Back waste rock throwing guniting filling system and method based on fully-mechanized mining frame
  • Back waste rock throwing guniting filling system and method based on fully-mechanized mining frame

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Such as figure 1 and figure 2 As shown, the present invention provides a gangue grouting filling system based on fully mechanized mining racks, which includes a gangue conveying assembly 6, a coal conveying assembly 7, and a slurry conveying pipeline 2 that can be arranged in the coal mining face, and at least A fully-mechanized mining gangue-casting support 1 that can be arranged in the coal mining face; the gangue conveying assembly 6, coal-transpor...

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Abstract

The invention provides a rear waste rock throwing, guniting and filling system and method based on a fully-mechanized coal mining frame, and belongs to the field of coal mining. The rear waste rock throwing, guniting and filling system comprises at least one fully-mechanized coal mining waste rock throwing support capable of being arranged in a coal mining working face, and a tamping assembly is arranged on the side, close to a space to be filled, of each fully-mechanized coal mining waste rock throwing support; a scraper conveyor is arranged at the lower end of a rear beam of each fully-mechanized coal mining waste rock throwing support, a spray head is arranged on one side, close to a space to be filled, of each scraper conveyor, and each spray head is communicated with a slurry conveying pipeline; the method has the beneficial effects that the filling efficiency and the roof contact rate of the filling process of the original waste rock behind the fully-mechanized mining frame can be improved.

Description

technical field [0001] The invention belongs to the field of coal mine mining, and specifically relates to a system and method for spraying grout filling after fully mechanized mining racks. Background technique [0002] With the continuous increase of coal mine mechanization and the extension of mining life, the shallow resources have been exploited, and the remaining coal resources are mainly compression resources under structures such as railways and buildings. This part of the compression resources must be The recovery shall be carried out by means of filling and mining. At present, the process of recovering and compressing resources with high mining efficiency is the raw gangue filling process behind the fully mechanized mining frame, but the filling efficiency and roof connection rate of the existing raw gangue filling process behind the fully mechanized mining frame are lower than the short-wall combined mining dense filling method , Pumping and filling process after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00
CPCE21F15/005
Inventor 耿华锋刘媛媛张志勇
Owner XINWEN MINING GROUP
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