RU2381368C1 - Hydraulic device for dismantling of mechanised lining - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention is related to mining industry and may be used in dismantling works of longwall equipment set, in particular for dismantling of mechanised lining from clinker. Hydraulic device for dismantling of mechanised lining includes basement arranged in the form of beam with eyes for connection of system for displacement of "coverage set", which are welded at the distance equal to pitch of lining arrangement in lava, support, where hydraulic stands are installed at the distance equal to pitch of lining sections displacement and boom, which is hingedly connected to beam with the possibility of its rotation by means of hydraulic jack versus dismantled section of lining for its pulling and turning.

EFFECT: improved safety and efficiency of performed works.

1 cl, 8 dwg

Description

The invention relates to the mining industry and can be used when performing dismantling of a treatment plant, in particular for dismantling a downhole mechanized roof support from lava.

Close to the proposed hydraulic device for dismantling the mechanized lining is the dismantling of the bottomhole lining with a winch. Dismantling the lining is carried out from the transport (ventilation) drift of lava to the conveyor drift. For its implementation, the two extreme sections of the lining are turned 90 ° and used as a “cover kit”, which is constantly pulled by the winch cable as each subsequent lining section is dismantled. Dismantling the linear section of the bottomhole lining is carried out as follows: opposite the dismantled section of the lining, in the soil or in the face of the lava, a hole is pre-drilled and a “cone” with a rope is installed in it, to which, using the length of the chain, the lining movement system is attached, after which the lining is pulled up by a step shifts. This operation is repeated until the lining section is turned 90 °, after which it is pulled out of the lava by a winch cable.

The disadvantage of the analogue is that to ensure the safety of the work, the technological personnel working in the lava should be outside the range of the tensioned winch cable, i.e. to move the two sections of the cover by 2 meters, people must leave the lava twice (or crawl out of the lava with a removable thickness of 1.0-1.6 m).

Another disadvantage is the need to perform an additional operation, which consists in drilling holes with their subsequent expansion and installation of "cones", which leads to an increase in the complexity of dismantling operations as a whole.

A hydraulic device is known (TU RB 600122531.064-2002 “Device for moving conveyor belt conveyors UPSh-1700”) for linear cyclic movement of equipment in preparatory mine workings. However, the disadvantages of this device are its overall dimensions (the minimum working height is 2.2 m) and the inability to turn the section of the downhole mechanized lining during its dismantling.

The objective of the invention is to provide a hydraulic device for dismantling mechanized lining from lava, which would improve the efficiency and safety of work in any mining conditions.

The technical result is achieved by the fact that the dismantling of the powered roof support from the working faces (lavas) is carried out using a hydraulic device.

To achieve this objective, the hydraulic device for dismantling the mechanized roof support includes a base made in the form of a beam with eyes for connecting the traveling system of the “ceiling kit” welded at a distance equal to the step of installing the roof support in the lava, connected to the base of the support on which the water stands are installed at a distance equal to the pitch of the movement of the support sections, and an arrow pivotally connected to the beam with the possibility of its rotation by means of a hydraulic jack relative to the dismantled support section for e pulling and turning. Hydro stands mounted on a support in “glasses” can have any size for lavas with different removable power.

In Fig. 1, a hydraulic device for dismantling a powered roof support is shown (Fig. 1 - view A, view B - plan view), Figs. 2-7 - flow diagrams of moving the "cover kit" and turning the face bolt using a hydraulic device.

The hydraulic device for dismantling the mechanized roof support (Fig. 1) includes a base made in the form of a beam 1 with eyes 5 for connecting the traveling system of the “cover kit”, welded through a distance equal to the step of installing the roof support in the lava, and the support 2, on which the pillars 3 are installed in “glasses” 4 (for stability) through a distance H equal to the step of moving the lining sections. The boom 6, in which the holes 8 are drilled for connecting a chain section of a deployable section, is connected to the beam 1 by a hinge and a hydraulic jack 7, by means of which it is folded, and then pulls and turns the lining section.

The dismantling of mechanized lining from the working faces (lavas) is carried out as follows:

- the hydraulic device is installed (Fig. 2): the two sections of the support 12 constituting the “cover set” are pre-deployed 90 ° with respect to the face, the hydraulic jacks of the roof support 11 are put forward, after which the hydraulic device 10 is installed, the hydraulic struts of which are bursting the roof, and the support sections move alternately;

- after that, the linear section of the lining is hooked to the hydraulic device (Fig. 3): the hydraulic jack of the slide 7 is folded, the boom approaches the dismantled section along the trajectory, the lining section is connected using the length of the chain 9 to the arrow;

- the section of the lining is pivoted (Fig. 4 and Fig. 5): the hydraulic jack 7 is extended, thereby providing a turn of the lining section of 90 for its subsequent transportation to the conveyor drift;

- then (Fig. 6), the hydraulic device for dismantling is moved by means of the sliding support system 11 of the roof support to a distance H equal to the step of moving the roof support sections, after which (Fig. 7) the roof support sections that make up the “cover kit” 12 move in turn and the cycle repeated.

The control of the hydraulic device, the movement of the “cover kit” and the 90 ° turn of the dismantled support are carried out from under the reliably open support section using the support system of the supports themselves, meeting all safety requirements and eliminating the need to remove people from the lava with each movement of the cover supports.

Thus, through the use of a hydraulic device with the movement of the “cover kit” and a 90 ° turn of the dismantled sections, as well as a reduction in labor costs due to the elimination of drilling operations, an increase in the safety and efficiency of dismantling sections of the mechanized support of the treatment plants, i.e. provides a solution to the problem.

Claims (1)

A hydraulic device for dismantling a powered roof support, including a base made in the form of a beam with eyes for connecting the traveling system of the “cover kit”, welded at a distance equal to the step of installing the roof support in the lava, connected to the base of the support on which the water stands are installed at a distance equal to the pitch the movement of the lining sections, and the boom pivotally connected to the beam with the possibility of its rotation by means of a hydraulic jack relative to the dismantled lining section for its pulling and turning.

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