Intelligent adjustment system and method for fully mechanized coal mining face

A fully mechanized mining face, intelligent adjustment technology, applied in the direction of earthwork drilling, slitting machinery, cutting machinery, etc. Problems such as unreasonable machine lap connection, etc., to achieve the effect of ensuring continuous and normal operation

Pending Publication Date: 2022-05-31
付钢 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual mining, the transportation and backtracking roadways connected to the working face are fixed spaces. Because of the existence of the coal seam inclination, the scraper conveyor (slider) is prone to drift in the process of following the fully mechanized mining face, that is, Compared with the reloading machine, the phenomenon of indentation or escaping leads to an unreasonable overlapping relationship between the scraper conveyor and the reloading machine, and the space for transporting back and forth in the fully mechanized mining face has been fixed. Indentation and escape will cause the coal flow of the scraper conveyor to be poorly transported, and even cause the hydraulic supports of the fully-mechanized mining face to be squeezed, bitten or even collapsed, resulting in poor production. Smooth, stagnant and even affect production safety
[0003] At the same time, another reason for the indentation or escape of the scraper conveyor relative to the reloader is that the fully mechanized mining face is not perpendicular to the transport trough, that is, the fully mechanized mining face is in the position of the scraper conveyor during construction. One end of the head is ahead or behind the end of the tail of the scraper conveyor

Method used

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  • Intelligent adjustment system and method for fully mechanized coal mining face
  • Intelligent adjustment system and method for fully mechanized coal mining face
  • Intelligent adjustment system and method for fully mechanized coal mining face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Please refer to figure 1 , an intelligent adjustment system for a fully mechanized mining face, comprising: a distance measuring sensor, set on the head of the scraper conveyor, for monitoring the length of the scraper conveyor head retracting or breaking out of the loader; a stroke encoder, set On the shearer, it is used to measure the running position of the shearer; permanent magnets are installed on the front side and the rear side of the scraper conveyor, and the shearer stroke encoder is reset to zero by the magnetic signal, which is used for Control the shearer's traction not to exceed the cutting range, the reversal of the upper and lower positions of the two drums, and the change of the direction of traction and cutting; the electromagnets for oblique cutting and feeding, one is installed on the head side and the tail side of the scraper conveyor; and , a plurality of angle-adjusting electromagnets, evenly distributed between the two bevel feed electromagnets; ...

Embodiment 2

[0041] Please refer to figure 2 , a fully mechanized mining face adjustment method, comprising the following steps:

[0042] S1, the permanent magnet, the bevel feed electromagnet, the first angle adjustment electromagnet and the second angle adjustment electromagnet are sequentially arranged in a manner that the two ends of the fully mechanized mining face extend toward the middle thereof, wherein:

[0043] A second angle-adjusting electromagnet is distributed in the middle of the fully mechanized mining face, two permanent magnets are symmetrically distributed with respect to the second angle-adjusting electromagnet, two bevel feed electromagnets are symmetrically distributed about the second angle-adjusting electromagnet, and two The first angle-adjusting electromagnet is symmetrically distributed with respect to the second angle-adjusting electromagnet; the permanent magnet, the bevel feed electromagnet, the first angle-adjusting electromagnet and the second angle-adjusti...

Embodiment 3

[0059] This embodiment is a production method of an irregular cycle of 2-pass machine tail: 1-pass machine head, and the duplicated content with Embodiment 2 will not be repeated here.

[0060] like image 3 As shown, set the width of the loader as L, the permanent magnet close to the loader is the head magnet, and the permanent magnet far from the loader is the tail magnet; when the length of the scraper conveyor head retracted into the loader is greater than or equal to L / 8 and less than L / 4, and when the shearer cuts from the tail of the scraper conveyor to the head of the scraper conveyor, S3 includes the following steps:

[0061] S31, after the shearer cuts through the tail end of the fully mechanized mining face, the tail magnet makes the stroke encoder return to zero, the shearer stops pulling, and the hydraulic support and the scraper conveyor follow the nose of the scraper conveyor. The way of extending to the tail of the machine is successively pushed to the coal w...

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Abstract

The invention provides a fully mechanized coal mining face intelligent adjusting system which comprises a distance measuring sensor, a stroke encoder, a permanent magnet, a beveling feed electromagnet and an angle adjusting electromagnet, and further provides a fully mechanized coal mining face adjusting method which is applied to the system and used for adjusting the advancing progress of a machine head or a machine tail of a fully mechanized coal mining face. That is, the advancing direction of the fully mechanized coal mining face is intelligently changed, and the machine head of the scraper conveyor moves out and retracts after multiple times of pushing in the process of adjusting the advancing direction of the fully mechanized coal mining face, so that the retracting and moving-out quantity of the machine head of the scraper conveyor caused by the gradient, the advancing direction and other factors of the fully mechanized coal mining face is eliminated. The lap joint length of the scraper conveyor head and the reversed loader is stabilized within a set threshold range of smooth coal flow conveying, and continuous and normal production of a fully mechanized coal mining face is guaranteed.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to an intelligent adjustment system and method for a fully mechanized mining face. Background technique [0002] Due to the continuous movement of the crust, the level of the coal seam is less, and most of them are inclined. In actual mining, the transport and return tunnels connected to the working face are fixed spaces. Due to the existence of the inclination of the coal seam, the scraper conveyor (slider) is prone to deviation in the process of following the fully mechanized working face, that is, Compared with the phenomenon of indentation or protruding of the loader, the overlapping relationship between the scraper conveyor and the loader is unreasonable, and the space for the fully mechanized mining face to be transported back has been fixed. The indentation and escaping will cause the scraper conveyor to transport the coal flow poorly, and even cause the hydraulic suppor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/24E21C25/06E21C25/68E21C35/08E21C35/20E21C31/08E21F13/00E21F13/08
CPCE21C35/24E21C25/06E21C25/68E21C35/08E21C35/20E21C31/08E21F13/008E21F13/08
Inventor 付钢付诗茜
Owner 付钢
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