RU2120035C1 - Gear for dust suppression in face clearance and in places of its generation - Google Patents

Abstract

FIELD: mining industry. SUBSTANCE: proposed gear has body with working cylinder, pipe-line with injectors spraying water and dust suppression mechanism composed of spring-loaded piston with sealing rings and rod with washer and meniscus attached to it and mounted for reciprocating motion. Meniscus interacts with internal arm of rocker which external arm interacts with rod of spring-loaded valve whose rod carries dog that interacts with dog attached to hinge. Service water is sprayed by injectors arranged over pipe-line. Each injector is fitted with valve controlled by spring-loaded screw which nut is put on bracket and which guide is arranged on external arm of rocker. EFFECT: decreased explosion risk of mining operations. 1 cl, 6 dwg

Description

 The invention relates to the coal industry.

 A device for ed. USSR N 729364, class E 21 F 5/02 for irrigation of dust spots, including nozzles for spraying liquids ... hoses for connecting nozzles. The device has a flaw, because the piston installed to alternately block the outlet and inlet openings of the fluid flow switch is short-lived and will quickly fail. In addition, the presence of hoses when connecting nozzles is fraught with a quick failure of them, because blasting during the repulsion of the chest of the face contribute to this. The subjective inclusion of irrigation of foci of dust generation is also not ignored: the lack of automatism.

 A device for suppressing dust in the bottomhole space and in the place of its generation with a spray mechanism of technical (mine) water is characterized by the following essential features.

 To create the proper wetting with the help of coagulants of the smallest solid suspended particles floating in the bottomhole air with water droplets with a volume halo, as well as to create an effective flush of settled pieces of coal and rock and on the surface of the sides, soil and roof of the mine, it is intended to increase the explosion safety proposed mechanical device.

 The specified technical result is achieved by the fact that in the device for suppressing dust in the bottomhole space and in the places of its generation, comprising a housing with a working cylinder, a pipeline with spray nozzles and a dust suppression mechanism, the dust suppression mechanism consists of a spring-loaded piston with cuffs and a rod attached to it with the washer and meniscus with the possibility of making or reciprocating motion, the meniscus of the washer interacts with the inner arm of the rocker arm, the outer arm of which interacts with the current of a spring-loaded valve, on the rod of which a dog is mounted, which interacts with a dog mounted on a hinge, and the process water is dispersed by water spray nozzles located on the pipeline, each of which is equipped with a valve controlled by a spring-loaded screw, the nut of which is mounted on the bracket, and the guide on outer end of the beam.

 In this case, dust suppression by water spray nozzles during coal or rock overload from one conveyor to another process water is supplied to the start valve from a samovar valve, the core of which is connected to a rotary roller fastened to a spring-loaded rod sensor interacting with the overloaded mass.

 In FIG. 1 shows a device (general view).

 In FIG. 2 designates the device nozzle-spray.

 Conveyor attachment and its work.

 In FIG. 3 indicates a rod sensor (limit switch), which occupies a horizontal position. Its spring worked, and the samovar tap is closed, the spray nozzles do not work.

In FIG. 4 rod sensor under the influence of the incident mass of the load is rotated by a hinge by 90 ^o and occupies a vertical position. The samovar tap is open and spray nozzles suppress dust.

 In FIG. 5 are indicated in the axial direction of FIG. 3 and FIG. 4.

 In FIG. 6 is the same (view according to A of Fig. 3 and Fig. 4).

 When the conveyor is not working, the rod sensor (limit switch) takes its initial position.

 The device comprises: a working metal cylinder 1, a piston 2 with rubber cuffs 3 installed with the possibility of reciprocating motion, placed in a metal housing 4. A spring-loaded metal rod 5 is attached to the piston 2 with the possibility of its movement in the guide 6. On the rod 5 the washer 7 is reinforced with a meniscus 8 interacting with the shoulder 9 of the two-shouldered rocker arm 10 with its rotation on the hinge 11. The shoulder 12 of the rocker arm 10 interacts with the stem 13 of the spring-loaded valve 14, to which the pipe 15 is connected from ovar valve 16 process water from the stand 17. From the start valve 14 through the inlet pipe 18, water is supplied to the working cylinder 1. The water outlet is carried out in a pipeline with nozzles (water sprinklers) 20 installed to suppress dust. At the end of the shank 21 of the rod 5, a console 22 with a rod 23 is fixed, the length of which is adjustable. The lower end of the rod interacts with the spring-loaded outlet 24 of the dog 25 mounted on the hinge 26. The dog 25 interacts with the dog 27. The nozzle (water spray) 20 includes a valve 28 connected to the two-arm lever (rocker) 29, which rotates on the hinge 30. The inner end of the beam is connected with the center of the valve 28 using the rod 32, the outer end 33 of the rocker arm 29 has a guide 34 for passing the end of the adjusting screw 35 with a washer 36 mounted thereon for supporting the spring. The nut 37 of the screw 35 is mounted on the bracket 38 of the cage 39.

 The operation of the device. Technical water supply to the samovar faucet 16, when it opens, moves under operating pressure to the valve 14 and, compressing its spring, feeds the rod 13 upwards (by laughter). Water fills the piston space of cylinder 1 and moves the piston 2 up. The washer 7, mounted on the rod 5, compresses the spring, and the meniscus 8 runs onto the end of the shoulder 9, closes the valve 14. At the same time, the dogs 25 and 27 are closed. The spring of the rod 5, cocked to failure, presses the washer 7 and the piston 2 displaces the water from the cylinder 1 into the pipeline 19 with nozzles 20 located around the perimeter of the site for dust suppression. At zero pressure under the above-piston space, the valve 14 opens under the action of the pressure of tap water. In this case, the dogs 25 and 27 are disconnected, since the rod 23 ran onto the spring-loaded outlet 24. The valve spring 14 is compressed, and the water again fills the sub-piston space 1 and the cycle repeats.

 Work nozzle (water spray). Water entering the pipeline 19 with nozzles 20 will only open the valves 28 of the nozzles 20 and will wash off the dust when there is an overpressure in the pipeline 19. The jet is adjusted with the adjusting screw 35. When it rotates clockwise, the spring elasticity increases and valve 28 increases with more force clamped, and vice versa, for greater water flow and a large halo of the jet, it is necessary to unscrew the screw 35 at a certain angle and lock it. The shirt of the working cylinder should be made of cast iron, the core of the samovar tap should be made of bronze, the cuffs should be made of rubber, and the remaining parts should be steel. For a stable flow of water from the nozzles, it is possible to install an electromagnet on the piston rod instead of a spring.

 Dust suppression during the overload, for example, of coal from one conveyor to another, was carried out using a conveyor attachment consisting of a spring-loaded rod sensor 40 (limit switch) interacting with an overloaded mass of cargo, as well as with an arm 41 and turning on a hinge 42, which includes a roller 43 fastened on a hinge 42, where the roller 43 is attached, fastened to the sensor 40. The other end of the roller 43 is connected to the core 44 of the samovar valve 16. When the sensor 40 is upright, the samovar valve 16 is open and the nozzles dorazbryzgivateli crushed dust. The figured sensor 40 will occupy the vertical position when the supply mass of the load will act on it from the upper conveyor to the lower. When the upper conveyor stops, the sensor spring is activated by closing the samovar crane and installing the rod sensor in a horizontal position. Nozzles will stop working. One end of the roller 43 is rotated in the hinge 42, the other in the bearing 45, the housing of which is fastened to the frame of the container. For a stable flow of water from the nozzles, it is possible to install an electromagnet on the piston rod instead of a spring.

 When the samovar launch crane is opened, mine water from sumps, purified and properly filtered by the canting, compresses the spring of the pre-cylinder valve and fills the working metal cylinder. When the piston reaches the upper position, the spring-loaded valve closes, supplying water to the cylinder. The piston rod spring is turned on, and water from the over-piston space rushes into the pipeline with nozzles, from which water flushes the dusty surface, as a result of which its smallest droplets come in contact with atomized suspended solicose dust particles. The empty slave cylinder draws water again as the pre-cylinder spring-loaded valve becomes open. And the cycle repeats. Dust flushing at the opening of the crane in places of overloading coal and rock was carried out by a spring-loaded sensor of a samovar crane (limit switch). When the conveyor stops, the crane is adjusted so that it can be turned off under the action of a spring.

Claims (2)

 1. A device for suppressing dust in the bottomhole space and in the places of its generation, comprising a housing with a working cylinder, a pipeline with spray nozzles and a dust suppression mechanism, characterized in that the dust suppression mechanism, consisting of a spring-loaded piston with cuffs and a rod with a washer attached to it and meniscus with the possibility of their reciprocating motion, the meniscus of the washer interacts with the inner arm of the rocker arm, the outer arm of which interacts with the spring-loaded stem Apana, on the rod of which a dog is mounted, which interacts with a dog mounted on a hinge, and technical water is dispersed by water spray nozzles located on the pipeline, each of which is equipped with a valve controlled by a spring-loaded screw, the nut of which is mounted on the bracket, and the guide is on the outer end rocker arm.  2. The device according to claim 1, characterized in that the suppression of dust by spray nozzles when coal or rock is overloaded from one conveyor to another process water is supplied to the start valve from a samovar valve, the core of which is connected to a rotary roller fastened to a spring-loaded rod sensor, interacting with overloaded mass.

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