SU761711A1 - Power roof support section - Google Patents

Description

The invention relates to the extraction of minerals by the underground method, namely to the fastening of working faces with mechanized roof supports.

A section of mechanized cres, pi is known, which includes hydraulic racks, a base, an overlap, and sprinklers connected to a pipe installed on the upper edge of the side surface of the shield. The pipeline for the supply of fluid is connected to the supply pipeline and have openings facing the adjacent section. At the lower edge of the side surface there is an elastic seal, which forms, with the same seal, the adjacent section, a drain chute [1].

In the specified device, the fight against dust is not sufficiently effective, since only the dust that is directly on the floor of the section is wetted.

The closest solution to the technical essence is the mechanized support section, which includes a base, hydraulic rails, overlap with a window, a hydraulic cylinder with a retractable pointed pin located in the window and mounted on the stem of the hydraulic cylinder, which is hollow [2].

In this section, mechanized support does not provide dust suppression when

moving the lining section.

2

The aim of the invention is to increase the effectiveness of dust suppression when moving the lining section.

This goal is achieved by the fact that 5 hydraulic cylinder is made with a double-sided rod, one end of which is rigidly connected with a pointed pin made in the form of a sprinkler, and the other end is used to connect to the water line, while the lower cavity of the hydraulic cylinder is connected to the rod cavity, and the top - with the piston cavity of the hydraulic column of the previous section.

FIG. 1 shows a general view of the support section 15; in fig. 2 — node I of FIG. one; in fig. 3 - diagram of the inclusion of the hydraulic cylinder in

water support lining.

The mechanized support section includes hydroracks 1, base 2, overlapping 3 with a visor 4 and a fence. The overlap has a window 5 in which the sprinkler 6 is placed. A hydraulic cylinder 7 with a piston 8 and a hollow rod 9 is embedded in the ceiling. The piston of the hydraulic cylinder 7 is made 25 with a double-sided rod. The sprinkler is made pointed and rigidly connected to the upper end of the stem, to the lower end of which the water supply line 10 is connected. The control of the movement of the lining is carried out by the hydraulic distributor 11. The hydraulic circuit of the lining is designed so that

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The sprinklers of each section are advanced and the water is supplied when the hydraulic legs of the adjacent section are removed same gidrostaki. The working fluid is supplied through the pressure line 12, and the discharge occurs through the drain line 13.

Moving section lining as follows.

In position I of the valve 11, all lining sections are in the open position, the piston 8 of the hydraulic cylinder 7 is in the lower position, the sprinkler 6 is recessed in the window 5 of the ceiling 3, there is no water supply. Humidification of crushed rocks over the first section can be carried out by autonomously controlling the operation of the hydraulic cylinder 7. Before shifting the first section, the hydraulic distributor is transferred to position II, while the working fluid from the pressure line 12 enters the rod of the hydraulic post 1 and parallel to the lower cavity of the hydraulic cylinder 7, while and the upper cavities, respectively, of the hydraulic rails and the hydraulic cylinders are connected to the drain line 13. From the first section of the lining, the thrust is removed, and from the windows 5 of the floor 3 the second one Under the thrust section, the sprinkler 6 is extended by the rod 9 and is inserted into the roof due to the pointed shape and force on the hydraulic cylinder rod by the stroke of the piston. Through the valve And, line 10 water supply and the hollow rod 9, the water enters the irrigator 6 and then into the collapsed massif over the section. The process of impregnation of the collapsed array is carried out during the entire cycle of advancing the previous section.

After the end of the shift

limit valve 11 is transferred to position III, while the piston cavity of the hydraulic post 1 and the upper cavity of the hydraulic cylinder 7 are connected to the pressure line, and the rod end of the hydraulic post and the lower cavity of the hydraulic cylinder are connected to the drain line. At the same time, the water supply to the sprinkler is stopped. In this position of the valve 11, the neighboring section й spreads the sprinkler from the array.

The use of the proposed section allows to increase the effectiveness of dust suppression when moving sections, as all the mass capable of waking up into intersectional gaps is wetted and the rock is destroyed and above the floors of the rocks and coal to a depth of at least the thickness of the false and direct roof.

Claims (1)

Claim The mechanized lining section, including the base, hydraulic girders, overlapping with a window, hydraulic cylinder with a retractable pointed pin located in the window and mounted on the hydraulic cylinder rod, which is made hollow, characterized in that, in order to increase the effectiveness of dust suppression when moving the lining section, the hydraulic cylinder is made bilateral rod, one end of which is rigidly connected with a pointed pin, made in the form of a sprinkler, and the other end is used to connect to the water line, while the lower cavity is a hydraulic cylinder The ra is connected to the rod end, and the upper to the piston cavity of the hydrorack of the previous section.