RU2505679C2 - Pipeline for end cut ventilation - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: pipeline for end cut ventilation includes air intake, suction path tubes and devices for their joints connection. To increase the reliability and simplify its maintenance the air intake is made extension-type from several sections reducing in diameter towards the suction end. Note that air intake is mounted at the face end of the suction path. The devices for connection of the suction path pipe joints between themselves and air intake are made in the form of socket-and-spigot connections and quick-releasing clamps from flexible material embracing their joints.

EFFECT: increase of reliability and convenience of pipeline maintenance.

3 cl, 3 dwg

Description

The invention relates to the field of mining, and can be used for mining.

A known pipeline for ventilation of a dead-end face, containing a fence, pipes of the suction tract and devices for fastening their joints, for example, part of the well-known "Device for removing dust and gas mixture from the bottom of a dead end" - certificate for utility model RU 12182 U1 E21F 5/00, publ. December 16, 1999

In terms of its features and the achieved result, this pipeline is closest to the claimed one and adopted as a prototype.

The disadvantage of this pipeline is its low reliability and ease of maintenance, due to reduced draft in the intake due to the suction tract covering the end pipe and due to this, before entering the last stagnant zone with an inevitable accumulation of dust mixture in it with a probability of jamming from - for this intake when moving it, often increasing the length of the pipeline, as well as the laborious fastening of pipe joints according to one of the known schemes (for example, threaded or flanged) and sealed iem.

The objective of the invention is to increase the reliability and ease of maintenance of the pipeline.

This problem is solved by improving the pipeline for ventilation of a dead-end face containing a fence, pipes of the suction tract and devices for fastening their joints.

The improvement consists in the fact that the intake is made telescopic from several sections, decreasing in diameter to the suction end, and is installed on the end of the suction path, and the fastening devices for the joints of the pipes of the suction tract between themselves and the intake are made in the form of bell-shaped joints and covering the joints of quick-detachable coupling clamps made of elastic material;

coupling clamps are made with Velcro tape locks;

the pipes of the suction tract and the intake from the joints are made with the same outer diameters, evenly tapering in the directions from the joints.

Performing a telescopic intake of several sections, decreasing in diameter to the suction end, and installing it at the end of the suction path, allows to increase the length of the intake and its traction, reduce or eliminate the stagnant zone in it, and reduce the frequency of increasing the length of the pipeline with increasing length of the bottom.

And the implementation of devices for fastening the joints of the pipes of the suction tract between themselves and the intake - in the form of bell-shaped joints and the joints of quick-detachable coupling clamps made of elastic material covering them, simplifies assembly-disassembly during pipe extension while simplifying the sealing of its joints.

This embodiment of the invention improves its reliability and ease of maintenance.

The implementation of the coupling clamps with locks from Velcro tape allows you to simplify the locking-unlocking clamps.

The execution of the pipes of the suction tract and the intake from the joints with the same outer diameters, evenly tapering in the directions from the joints, allows for reliable fixation of the coupling clamps at the joints with the creation of additional sealing of the latter.

Below, with reference to the attached drawing, where shown in:

Figure 1 - pipeline in General view;

Figure 2 - a clamp with locks from Velcro tape;

Figure 3 - view a in figure 2;

Figure 4 - the joint with the outer diameters of the pipes evenly tapering from it;

Thin lines in figure 1 shows the face.

The pipeline for ventilation of a dead-end face contains a fence 1, pipes 2 of the suction path 3 and devices 4 for fastening their joints B.

The intake 1 is made telescopic of several sections: fixed - 5, retractable - 6, 7, decreasing in diameter to the suction end 8, and mounted on the end face 9 of the suction path 3. Device 4 for fastening the joints B of the pipes 2 of the suction path 3 to each other and the intake 1 is made in the form of bell-shaped joints 10 and the joints B of quick-detachable coupling clamps 11 of elastic material covering them.

In options:

- coupling clamps 11 are made with locks 12 of Velcro tape (Figure 2);

- pipes 2 of the suction path 3 and the intake 1 from the side of the joints B are made with the same outer diameters B, tapering uniformly in the direction from the joints B (Figure 4).

When operating the proposed pipeline, it is suspended from the ceiling of the face by one of the known methods. In the process of driving, sections 6, 7 of the telescopic intake 1 extend relative to its stationary section 5 as the tunneling machine moves in the face and the fan (not shown) of the suction path 3 through the suction end 8, of a smaller cross section compared to the pipes 2 of the suction path 3 they suck in dust from the bottom (with increased traction, without stagnant zones in the intake and increased stroke of the combine without increasing the length of the suction tract).

At the end of the stroke of the retractable sections 6, 7, the tunneling machine is stopped, the fan of the suction tract 3 is turned off, sections 6, 7 are pushed into the stationary section 5, one of the joints B of the suction tract 3 is disassembled, its part with the intake 1 is moved in the direction of the face by the amount of the last stroke (i.e. ~ for the length of one or two pipes 2). One or two pipes 2 are inserted into the formed gap of the suction path 3 with their fastening in new joints B with bell-shaped joints 10 and quick-release coupling clamps 11 made of elastic material that surround them and the integrity of the suction path 3 is restored (which simplifies disassembly and assembly of the pipeline when it is elongated and sealing new joints).

Compared to the prototype, the pipeline for ventilation of a dead-end face is characterized by increased reliability and ease of maintenance.

Claims (3)

1. The pipeline for ventilation of the blind face, containing the intake, pipes of the suction tract and devices for fastening their joints, characterized in that the intake is made telescopic of several sections, decreasing in diameter to the suction end, and installed on the end of the suction tract, and devices for fastening the joints of the pipes of the suction tract between themselves and the intake are made in the form of bell-shaped joints and the joints of quick-release coupling clamps made of elastic material covering them. 2. The pipeline according to claim 1, characterized in that the coupling clamps are made with locks from Velcro tape. 3. The pipeline according to claim 1, characterized in that the pipes of the suction tract and the intake from the joints are made with the same outer diameters, uniformly tapering in the directions from the joints.

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