SU853115A1 - Sprinkling arrangement of planing machine - Google Patents

Description

one

The invention relates to the mining industry and can be used to suppress dust during coal extraction with strugs.

A device for irrigating a plow is known, including sprinklers, distributors, a water tank and a hydraulic cylinder with two rods, the working cavities of which are hydraulically connected to the water tank by means of a valve. In addition, the hydraulic cylinder rods are connected to the drive chain of the plow 1.

The disadvantage of the device is its bulkiness due to the presence of a water tank.

It is also known to irrigate a coal plow containing a pump, nozzles, a hose, a hose channel made in the form of a gutter, open only on the side of the conveyor, and a handle entering the hose channel and attached to the hose 2.

A disadvantage of this device is the inability to supply water to the nozzles under high pressure, on the order of 100-300 atm and more, even when using a high-pressure hose, since the hose at high pressure loses flexibility, the frictional force between the hose increases dramatically.

and by the hose channel, the hose is wedged in the groove.

The purpose of the invention is to increase the efficiency of dust suppression by providing 5 NINs of supplying fluid to the nozzles under high pressure in a pulsed mode.

This is achieved by the fact that the device is equipped with a spring-loaded piston accumulator communicating with the nozzles, 10 while the pump is pulsed and co-operating with the hydraulic accumulator by means of a check valve, installed with the possibility of the opposite direction of twisting, and connected to the flexible hose m by means of a chain cut.

The sliding part of the guide arm may have a coil spring.

The drawing shows the irrigation device plow, schematic diagram.

The plow irrigation device contains a piston impulse pump 1 with a differential piston placed outside the lava, a high-pressure rubber hose 2 placed in the hose channel (groove) 3, open only on the side 30 of the conveyor and attached to it from the inlet side. On the plow 4 a telescopic handle is placed in the plane of the layer perpendicular to the chute. The handle contains a pipe 5 and a sliding part b, interconnected inside a pipe by a cylindrical steel spring 7, working for tension. The pipe 5 is fixed on the axis 8, placed in the stopper 9 and 10, connected by two steel coil springs 11 and 12 coaxially arranged on the axis, having opposite directions of twisting, with the plane 4. The telescopic arm 6 extends into the hose channel 3 and attached to the hose 2 by a circular circuit 13 and a clip 14. Inside the plow, a spring-loaded piston accumulator 15 is fixed, connected to the hose 2 by means of a check valve 16 and through pipes 17 and 18 - with irrigation nozzles 19 and 20 fixed on the plow 4.

The device works as follows.

When the plow 4 moves from one end of the lava to the other, pulse pump 1 is operated. During a pressure pulse, hose 2 loses flexibility, is wedged in groove 3 and stops. The telescopic handle is deflected, rotating the axis 8, and twisting the spring 11, as the plow continues to move.

At the same time, the sliding part 6 of the telescopic arm extends, stretching the spring 7. Under the action of a high pressure pulse, the check valve 16 opens, and the hydraulic accumulator 15 shrinks the spring, while part of the water flows through the pipes 17 and 18 to the nozzles 19 and 20. Next comes the downward impulse of pressure. The hose 2 acquires flexibility under the action of the spring And is sharply pulled to the jet 4. The handle part 6 under the action of the spring 7 is pushed into the pipe 5. The arm assumes its original position. The check valve 16 is closed, and the hydroaccumulator 15 supplies the water stored during the pressure pulse to the nozzles 19 and 20 through lines 17 and 18. The piston of the hydroaccumulator 15 returns to its original position, i

Next comes the pressure pulse, and

the process is repeated. When the plow 4 moves in the opposite direction, the handle is deflected to the other side, twisting the spring 12. All processes are similar when

the work of the plow on a certain part of the lava.

The use of an irrigation device for the plow allows the nozzles to be supplied with a fluid under pressure of 100-

300 atm, which ensures effective dust suppression when working coal plow. The proposed device can be used as a hydraulic transmission for driving a dynamic plow.

Claims (2)

1. The plow irrigation system, which includes a pump, a hose channel made in the form of a gutter, a flexible hose, a guide handle placed on the plane and communicated with the hose channel, and nozzles, in order to increase the efficiency dust suppression by supplying fluid to the high-pressure nozzles in a pulsed mode; the device is equipped with a spring-loaded piston accumulator connected to the nozzles; the pump is impulsive and communicated with the hydroaccumulator by means of a non-return valve; with coaxially located coil springs, installed with the possibility of the opposite direction of twisting, and connected to the flexible hose by means of a chain cut. 2. A device according to claim 1, characterized in that the sliding part of the guide arm has a cylindrical spring. Sources of information taken into account in the examination 1. USSR author's certificate No. 608958, cl. E 21 F 5/04, 1976. 2, Shnir M “dr. A new irrigation device for a coal plow,“ Glukauf, 1976, No. 2, p. 21-25 (prototype).