CN212716743U - Automatic ware that drains of high-efficient slagging-off of colliery gas drainage system - Google Patents

Abstract

The utility model relates to an automatic ware that drains of high-efficient slagging-off of colliery gas drainage system mainly comprises ware barrel, upper cover subassembly, floater lifting unit that drains. The water drainage device abandons a structure of attracting a floating ball top plate by magnetic force before design, adopts floating ball buoyancy to drive a lifting guide rod to lift, and utilizes a lever principle to drive an air valve handle to open and close an air valve, so that positive and negative pressure in the water drainage device is switched quickly and efficiently, and water inlet and drainage work of the water drainage device is realized. Owing to adopted above-mentioned novel structural design, this utility model a high-efficient slagging-off automatic ware that drains of colliery gas drainage system can high-efficient, safe, stable, reliable automatic drainage gas drainage pipeline's ponding.

Description

A high-efficiency slag-removing automatic water discharger for coal mine gas extraction system

technical field

The utility model relates to a high-efficiency slag-removing automatic water discharger for discharging accumulated water in a mining pipeline in a coal mine gas extraction system.

Background technique

In the coal mine gas drainage system, a large amount of condensed water will be formed due to the large temperature difference at various points in the underground. In addition, since the coal seam and the rock layer where it is located contain moisture, a large amount of water will also be generated during the drilling process into the gas drainage. In the pipeline, it will directly affect the normal operation of the extraction system, increase the resistance of the extraction, and reduce the extraction effect; when the accumulation of water is serious, the extraction may even be interrupted, resulting in a gas over-limit accident.

Therefore, the design of an automatic water release device with high water release efficiency, stable performance and reliability is of great significance for the stable and safe operation of the gas extraction system.

At present, there are two types of water dischargers on the market. One is a manual water discharger. Coal miners regularly discharge cinder and accumulated water manually, which is labor-intensive and time-consuming. If the discharge is not timely, it will easily affect the extraction efficiency; the other is an automatic water discharger. , Using the floating ball gravity, buoyancy, magnetism, negative pressure and guide rods and other devices, use the buoyancy of water to lift the floating ball, when it reaches the top, use the magnetic force to attract the floating ball, block the negative pressure pipeline, and atmospheric pressure enters container, and then open the drain valve to drain the water. The problem of this automatic water discharger is that it is difficult to discharge slag and has poor reliability; after a long time, the magnetic force is weakened, and the surface of the magnet adsorbs coal slime, which affects the suction, so that the accumulated water cannot be discharged, which seriously affects the extraction efficiency.

SUMMARY OF THE INVENTION

The problem to be solved by the utility model is to overcome the deficiencies and defects of the water discharger in the background technology, and to design a fully automatic water discharger with efficient slag discharge and automatic water discharge.

The utility model high-efficiency slag-removing automatic water discharger is composed of three main parts: 1. The water discharger cylinder: consists of a casing 1, a handle 2, a water inlet sealing cover 3, a water inlet pipeline 4, a liquid level gauge 15, and a water outlet seal Cover 18, water outlet pipeline 19, cylinder bottom 20; II, upper cover assembly: upper cover 14, tightening bolt assembly 13, air valve 11, atmospheric pipeline 12, negative pressure balance pipeline 7, air valve handle 10, seal Cover 8, gasket 5 composition; III, floating ball lifting assembly: composed of floating ball 17, pin 16, lifting guide rod 9, linear bearing 6.

Working principle: The water outlet sealing cover 18 and the water outlet pipe 19 are sealed under the action of negative pressure in the cylinder. At this time, the negative pressure in the cylinder is consistent with the negative pressure of the water inlet pipe, so that the water and cinder flowing into the water inlet pipe can flow into the barrel by gravity. In the body, the water inlet sealing cover 3 is in a free state at this time. As the water level increases, the floating ball 17 is affected by buoyancy and begins to rise with the water level. At the same time, the lift guide rod 9 rises together. When the floating ball 17 rises to the top, there is a through groove on the upper part of the guide rod 9 to slide and fit with the handle 10 of the air valve 11, and the lift guide rod 9 drives the air valve handle 10. Open the air valve 11, the atmospheric pipeline 12 is communicated with the cylinder, the water inlet sealing cover 3 closes the water inlet pipeline 4, the water outlet sealing cover 18 of the water outlet pipeline 19 is under the action of pressure to open the water, and when the water is discharged, the floating ball 17 descends When it reaches the bottom, the lift guide rod 9 drives the air valve handle 10 to close the air valve 11. At this time, the atmospheric pressure is disconnected from the cylinder, and the water inlet pipe and the cylinder are in a negative pressure state, starting a new round of water intake and discharge cycle.

Description of drawings

Fig. 1 is the structural representation of the high-efficiency slag removal automatic water discharger of the present utility model, in the figure: 1 shell, 2 handle, 3 water inlet pipe sealing cover, 4 water inlet pipe, 5 sealing gasket, 6, linear bearing, 7 negative pressure balance pipe Road, 8 sealing cover, 9 lifting guide rod, 10 air valve handle, 11 air valve, 12 atmospheric pipeline, 13 bolt assembly, 14 upper cover, 15 liquid level gauge, 16 pin shaft, 17 floating ball, 18 water outlet sealing cover , 19 outlet pipes, 20 cylinder bottoms.

Fig. 2 is an enlarged illustration of the lift guide rod, 21 pin holes, 22 round guide posts, and 23 long slot holes.

Figure 3 is the installation diagram of the water release device, 31 water inlet pipeline, 32 water inlet valve, 33, extraction valve, 34 extraction pipeline, 35 main extraction pipeline.

Detailed ways

Figure 3 is a schematic diagram of the installation of the high-efficiency slag removal automatic water discharger. The water inlet valve 31 and the extraction valve 32 are opened, and the water, gas and cinder collected from the coal seam gas pipeline are under the action of negative pressure, and the water and cinder flow into the water discharger, Gas is pumped away by the main extraction pipeline 35 due to its low density. When the water in the water discharger continuously flows in, the floating ball 17 rises to drive the lifting guide column 9 to rise. At this time, the gas valve handle 10 and the elongated groove of the lifting guide column 9 The hole 23 is gap-fitted. When the floating ball rises to the top, the lifting guide column 9 drives the air valve handle 10 to rise, and the air valve 11 is opened. At this time, the atmospheric pipeline 12 is connected to the inside of the water release device, and the atmospheric pressure enters the water release device and the water inlet pipe. The sealing cover 3 seals the water inlet pipe 4 under the action of the negative pressure of the extraction pipeline. Under the action of the pressure of the water in the water discharger, the water outlet sealing cover 18 is opened, and the water and some cinders flow to the outside; as the water continues to flow out, When the water level drops, the floating ball 17 drives the lift guide rod 9 to move downward. When it reaches the bottom position, the lift guide rod 9 drives the air valve handle 10 to close the air valve 11. At this time, the atmospheric pipeline 12 is isolated from the external atmospheric pressure, and the negative pressure is balanced. The pipeline 7 is communicated with the inside of the casing 1, the pressure inside the casing is consistent with the internal pressure of the extraction pipeline 34, the water outlet sealing cover 18 is under the force of negative pressure, and the water outlet pipe 19 is automatically closed, so that the water accumulated in the water inlet pipe 4 flows into In the water discharger, a cycle of water intake and water discharge is completed.

In order to better discharge the water and cinder in the water discharger, the bottom 20 of the cylinder shown in FIG. 1 is an inclined bottom surface, which is convenient for the smooth discharge of the coal cinder and slime; a liquid level gauge 15 is added outside the water discharger, which is convenient for inspectors to observe the shell The amount of water in 1; the contact part of the water inlet pipe 4 and the water outlet pipe 19 with the sealing cover has a downward slope, which is convenient for the cinder and slime to be discharged with the water, which is beneficial to the sealing cover better sealing.

Claims (3)

1. A high-efficiency slag-removing automatic water discharger for a coal mine gas extraction system, which is mainly composed of a water discharger cylinder, an upper cover assembly, and a floating ball lifting assembly. Using the lifting and lowering of the floating ball, the gas valve is opened and closed to realize positive and negative in the cylinder. It is characterized in that the lifting guide rod (9) of the floating ball lifting assembly moves up and down with the floating ball (17) to drive the air valve handle (10) to open and close the air valve (11) , the bottom of the water release cylinder has an inclined angle with the horizontal plane, which is convenient for drainage and slag discharge. 2. A kind of high-efficiency slag-removing automatic water discharger in a coal mine gas extraction system according to claim 1, characterized in that the lifting guide rod (9) is connected with the floating ball (17) through the pin shaft (16), and the lifting guide rod ( 9) The clearance fit with the linear bearing (6) is convenient for the lifting and lowering of the lifting guide rod (9). 3. The high-efficiency slag-removing automatic water discharger of a coal mine gas extraction system according to claim 1, characterized in that the elongated slot (23) in the lifting guide rod (9) is matched with the gas valve handle (10) with clearance, The lifting guide rod (9) is convenient for lifting, and the lifting guide rod (9) drives the air valve handle (10) to open and close the air valve (11).

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