CN110924947A

CN110924947A - Arrangement method of large-inclination-angle equipment

Info

Publication number: CN110924947A
Application number: CN201911402260.0A
Authority: CN
Inventors: 吕龙; 王涛
Original assignee: ANHUI MINING ELECTROMECHANICAL EQUIPMENT Co Ltd
Current assignee: ANHUI MINING ELECTROMECHANICAL EQUIPMENT Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-03-27

Abstract

The invention relates to a large-inclination-angle equipment arrangement method, which belongs to the technical field of coal mine machinery and comprises the steps of measuring specific degrees of a working face inclination angle α, designing an angle β after the working face changes and a groove change angle mu in a scraper conveyor 3 according to the specific degrees of the working face inclination angle α, calculating the number n of hydraulic supports 4 needing to be changed, carrying out angle change from the hydraulic support 4 to the first frame under the condition that a bottom plate at a working face air way 1 is flush with a bottom plate of an air way and a top plate at a working face machine way 6 is flush with a top plate of the machine way by a drawing method, and finally finishing the large-inclination-angle gradual inclination change.

Description

Arrangement method of large-inclination-angle equipment

Technical Field

The invention relates to a method for arranging large-inclination-angle equipment, and belongs to the technical field of coal mine machinery.

Background

The occurrence conditions of the coal seams of the mine in China are various, the coal seams of most mining areas are greatly influenced by geological structures, and the occupation ratio of the coal seams with large inclination angles of resources is high. The large-dip-angle coal seam is a coal seam with a buried dip angle of 35-55 degrees, the mining difficulty of the large-dip-angle coal seam is high under the influence of the dip angle of the coal seam, the acting force of the vertical rock stratum layer is reduced when the working face is stoped, the top plate of the large-dip-angle coal seam is more difficult to fall off than the top plate of the slowly-inclined coal seam, and the safety problem of coal mining equipment needs to be improved under the condition of the large dip angle.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the arrangement method of the large-inclination-angle equipment, so that the large-inclination-angle working face is changed into the slowly-inclined working face, the equipment at the machine head is convenient to maintain and manage, and the safety of personnel operation and the equipment is improved.

The invention is realized by the following technical scheme: a method for arranging equipment with large inclination angle, which is characterized by comprising the following steps:

step 1, measuring the specific degree of the inclination angle α of the working surface;

step 2, designing the changed angle β of the working surface and the changed angle mu of the middle groove of the scraper conveyor according to the specific degree of the inclination angle α of the working surface;

step 3, calculating the number n of hydraulic support frames needing to be changed according to a specific formula β = α -n multiplied by mu;

and 4, step 4: under the condition that a bottom plate at a working face air way is flush with a bottom plate of the air way and a top plate at a working face machine way is flush with a top plate of the machine way, angle change is carried out from the first hydraulic support, and finally large-inclination-angle slow-inclination transformation is completed;

and 5: and according to the result of the calculation and mapping method, finishing the arrangement of the equipment with large inclination angle.

The invention has the beneficial effects that: by the arrangement method, the situation that the large-inclination-angle working faces are all coal mining at the same large angle is changed, the machine head is changed into a slow-inclination working face with dozens of degrees, the safety is improved, the equipment at the machine head is convenient to maintain and manage, the occurrence of the falling situation of the hydraulic support is reduced, and the coal mining state of the working face is stabilized.

Drawings

The invention is further illustrated below with reference to the figures and examples.

FIG. 1 is a schematic diagram of the apparatus arrangement of the present invention.

In the figure: 1. the method comprises the following steps of an air way, 2, a coal mining machine, 3, a scraper conveyor, 4, a hydraulic support, 5, an end support and 6, and a machine way.

Detailed Description

A method for arranging equipment with large inclination angle as shown in fig. 1, which is characterized by comprising the following steps:

step 2, designing the changed angle β of the working surface and the changed angle mu of the middle groove of the scraper conveyor 3 according to the specific degree of the inclination angle α of the working surface;

step 3, calculating the number n of 4 hydraulic supports needing to be changed according to a specific formula β = α -n multiplied by mu;

and 4, step 4: under the condition that a bottom plate at a working face air way 1 is flush with a bottom plate of the air way and a top plate at a working face machine way 6 is flush with a top plate of the machine way, angle change is carried out from the hydraulic supports 4, and finally large-inclination-angle slow inclination transformation is completed;

Example 1: taking the example that the average inclination angle of a working face is changed from 40 degrees to 17 degrees, when a tunnel is tunneled, an air tunnel 1 is tunneled along the bottom of the tunnel, a machine tunnel 6 is tunneled along the top of the tunnel, if the bottom plate of the machine tunnel 6 is soft, hardening treatment is required, the tail of equipment of the working face is arranged along the bottom, the head is arranged along the top, starting from a 13 th hydraulic support 4 away from the head, a middle groove of each scraper 3 is vertically swung by 2.3 degrees, a swing angle of 0-3 degrees is designed in the vertical direction of the middle groove of the scraper 3, as the hydraulic support 4 is connected with the scraper 3, the arrangement angle of the hydraulic support 4 is changed along with the middle groove of the scraper 3, through the angle change of 10 hydraulic supports 4, 23 degrees in total, the inclination angle change of the working face is changed to 17 degrees from the second hydraulic support 4 away from the head, the equipment management and maintenance at the head are basically consistent with the common working face, and simultaneously, an end support 5 in the machine tunnel 6 plays a supporting role, the coal mining state of the whole working face equipment is ensured, the safety of the coal mining machine 2 is ensured, and the coal mining process is safer.

Claims

1. A method for arranging equipment with large inclination angle, which is characterized by comprising the following steps:

step 2, designing the changed angle β of the working surface and the changed angle mu of the middle groove of the scraper (3) according to the specific degree of the inclination angle α of the working surface;

step 3, calculating the number n of the hydraulic supports (4) needing to be changed according to a specific formula β = α -n multiplied by mu;

and 4, step 4: under the condition that a bottom plate at a working face air way (1) is flush with a bottom plate of the air way and a top plate at a working face machine way (6) is flush with a top plate of the machine way, angle change is carried out from the first hydraulic support (4) by a drawing method, and finally, large-inclination-angle slow-inclination transformation is completed;