SU898100A1 - Power-operated filling-in partition - Google Patents

Description

I

The invention relates to the mining industry and can be used in the hydraulic laying of the worked-out space on steep seams by horizontal stripes along the strike in the upstream order.

The backfill liner is known, which includes a shield consisting of two sections hinged among themselves, the total length of which is longer than the distance between the soil and the roof of the seam J.

The disadvantage of this jumper is the lack of devices for mechanizing its shifting.

A mechanized backfill liner is also known, comprising a shield consisting of two sections hinged between each other, resting against the soil and the roof of the formation, jacks of expansion and shifting, filtering sheet, while the shield is provided with hinges connected to each other.

beams allowing the shield to be moved from the backfill array by stepping 2,

The disadvantages of this jumper are the complexity of the design and the lack of devices for mechanized moving it up the rise of the reservoir along the filling mass.

The aim of the invention is to simplify the design and ensure that the jumper moves upwards along the bed uprising along the filling mass.

Claims (2)

The goal is achieved by the fact that the thrust jacks are installed between the opposite edges of the pschta sections abutting the soil and the roof of the stratum normally to the soil and the roof, with this each jack of the advancement is attached at one end to the rear end of the shield with the other, and to the bottom lining. 38 FIG. 1 shows a jumper, general view from the side of the bottom; in fig. 2 shows section A-A in FIG. 1. The jumper consists of shield 1, which consists of sections hinged between each other, jacks of thrust 2, mounted between the opposite edges of sections of shield 1 normal to the soil and the roof of the formation. In the shield 1 there are slots 3 with valves for draining water from the bedding array. In order to provide lateral movement (lifting) of the lintel, the latter has a jack of the slide 4, one end of which is attached to the top 5 of the support of the conveyor drift, and the second is connected to the rear end by means of a rope 6, pulled through the ring 7 attached to the top of the shield 1 part of it. In order to filter the water from the receiving side of the tab, the shield 1 is sheathed with a filtering web, for example, a sack cloth 8. The mechanical backfill net works as follows. In the initial position, the shield 1 is lifted to the desired height by the reservoir uprising with the help of a hydraulic jack of the advance (lift) 4. On the receiving side, the lintel is wrapped in two layers of sacking 8, which with the help of hydraulic jacks of the thrust 2 presses against the roof 9 and the soil 10 of the stratum. At the bottom, the mecchain joins an overlap (40 cm) with the sacking of the previous lower cutting strip. To raise the bridge into the rod cavity of the hydraulic jack of the lift 4, the working fluid is injected, the brush is drawn into the cylinder and lifts the bridge. Before lifting the lintel, the jacks of the thrust 2 weaken its contact with the roof and soil, for which fluid is pumped into the rods of the hydraulic jacks of the thrust 2, the rods are pulled in and, thanks to the hinge in the jumper, detaches from the roof 9 and the soil 10. After lifting the jumper, the tab starts . As the bedding at the lintel accumulates through the gaps in it 4 and the burlap 8, the water drains and flows out on the other side of it. When the filling array at the jumper rises to the desired height, and on the other side it does not have enough built-in space, open the slots 3, release the bookmark on the other side of the jumper, fill it and close the slots 3, replenish the backfill array released from the jumper and stop receiving bookmarks. After removing the coal of the next strip, the web is raised in the same way, bookmarks are received, etc. The use of the proposed jumper can significantly reduce the preparation time for the production of the bookmark, and, consequently, increase the productivity of backfilling and coal mining, and reduce the labor intensity of preparation for receiving the bookmark. Claims of the invention A mechanized backfill liner, comprising a shield, consisting of two sections hinged between each other, resting against the soil and roof of the formation, jacks of expansion and shifting, filtering sheet, which is designed to simplify the design and ensure that the jumper moves up on the rise of the reservoir along the backfill array, the thrust jacks are installed between the opposite edges of the shield sections abutting the soil and the roof of the stratum to the soil and the roof, with each jack moving ki is attached at one end by means of a rope to the rear face of the shield, and the other end - to the bottomhole support. Sources of information taken into account during the examination 1. GDR patent number 96748, cl. E 21 F 15/00, published. 1973. 2. Poland patent number 87889, cl. E 21 F 15/02, published. 1976 (prototype). A-A