CN115614098A

CN115614098A - Automatic ware that drains of high-efficient slagging-off of colliery gas drainage system

Info

Publication number: CN115614098A
Application number: CN201911425960.1A
Authority: CN
Inventors: 张志远; 张文海
Original assignee: Beijing Landsteel Technology Co ltd
Current assignee: Beijing Landsteel Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2023-01-17

Abstract

The invention relates to an efficient deslagging automatic water discharger for draining accumulated water in an extraction pipeline in a coal mine gas extraction system, which mainly comprises three parts: I. a water drainer cylinder body: the device comprises a shell 1, a handle 2, a water inlet sealing cover 3, a water inlet pipeline 4, a liquid level meter 15, a water outlet sealing cover 18, a water outlet pipeline 19, a cylinder bottom 20 and the like; II. An upper cover assembly: the device comprises an upper cover 14, a tightening bolt component 13, an air valve 11, an atmosphere pipeline 12, a negative pressure balance pipeline 7, an air valve handle 10, a sealing cover 8, a sealing gasket 5 and the like; III, floating ball lifting assembly: consists of a floating ball 17, a pin shaft 16, a lifting guide rod 9, a linear bearing 6 and the like. The water discharger is designed in such a way that (1) a structure for attracting a floating ball top plate by magnetic force before is abandoned, a lifting guide rod is driven by floating ball buoyancy, and an air valve is opened and closed by a lever principle, so that positive pressure and negative pressure in the water discharger are switched quickly and efficiently; (2) The cylinder bottom of the water discharger is an inclined bottom surface, which is convenient for discharging water, coal slag and coal slime smoothly; (3) The liquid level meter is additionally arranged outside the water drainage device, so that patrolmen can observe the height of the water level in the barrel conveniently. Due to the adoption of the novel structural design, the novel efficient deslagging automatic water drainage device can efficiently, safely, stably and reliably drain accumulated water of a gas extraction pipeline automatically.

Description

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

The invention relates to an efficient deslagging automatic water drainage device for drainage of accumulated water in an extraction pipeline in a coal mine gas extraction system.

The device consists of three main parts: I. a water drainer cylinder body: the device comprises a shell 1, a handle 2, a water inlet sealing cover 3, a water inlet pipeline 4, a liquid level meter 15, a water outlet sealing cover 18, a water outlet pipeline 19, a cylinder bottom 20 and the like; II. An upper cover assembly: the device comprises an upper cover 14, a tightening bolt assembly 13, an air valve 11, an atmosphere pipeline 12, a negative pressure balance pipeline 7, an air valve handle 10, a sealing cover 8, a sealing gasket 5 and the like; III, floating ball lifting assembly: consists of a floating ball 17, a pin shaft 16, a lifting guide rod 9, a linear bearing 6 and the like.

In the coal mine gas extraction system, because each point in the mine has a large temperature difference, a large amount of condensed water can be formed, in addition, the coal bed and the rock stratum contain water, and a large amount of water can also enter a gas extraction pipeline in the drilling process, so that the normal operation of the extraction system can be directly influenced, the extraction resistance is increased, and the extraction effect is reduced; when the water accumulation is serious, the extraction is even interrupted, and the gas overrun accident is caused.

Therefore, the automatic water drainer with high water drainage efficiency, stable performance and reliability is designed, and has important significance for stable and safe operation of a gas extraction system.

The prior water drainage device applied to the market is a manual water drainage device, coal mine workers regularly and manually discharge coal cinder and accumulated water, which wastes labor and time and easily influences extraction efficiency if the coal mine workers do not discharge the coal cinder and the accumulated water timely; the other is an automatic water discharger, which uses the floating ball gravity, buoyancy, magnetic force, negative pressure, guide rod and other devices to lift the floating ball by the buoyancy of water, when the floating ball reaches the top, the floating ball is attracted by the magnetic force to block the negative pressure pipeline, the atmospheric pressure enters the container, and the water discharge valve opens the water discharge. The automatic water discharger has the problems of difficult slag discharge and poor reliability; after the time is long, the magnetic force is weakened, the coal slime is adsorbed on the surface of the magnet, the attraction is influenced, accumulated water cannot be discharged, and the extraction efficiency is seriously influenced.

Disclosure of Invention

The invention aims to solve the problems of overcoming the defects of the water drainer in the background technology and designing a full-automatic water drainer which can efficiently discharge slag and automatically drain water.

The invention relates to an efficient deslagging automatic water discharger, which consists of three main parts: I. a water drainer cylinder body: the device comprises a shell 1, a handle 2, a water inlet sealing cover 3, a water inlet pipeline 4, a liquid level meter 15, a water outlet sealing cover 18, a water outlet pipeline 19, a cylinder bottom 20 and the like; II. An upper cover assembly: the device comprises an upper cover 14, a tightening bolt assembly 13, an air valve 11, an atmosphere pipeline 12, a negative pressure balance pipeline 7, an air valve handle 10, a sealing cover 8, a sealing gasket 5 and the like; III, floating ball lifting assembly: consists of a floating ball 17, a pin 16, a lifting guide rod 9, a linear bearing 6 and the like.

The working principle is as follows: the water outlet sealing cover 18 and the water outlet pipe 19 are sealed under the action of negative pressure in the cylinder body, the negative pressure in the cylinder body is consistent with the negative pressure of the water inlet pipe, so that water and coal cinder flowing into the water inlet pipe can flow into the cylinder body by means of gravity, and the water inlet sealing cover 3 is in a free state. Along with the increase of the water level, the floating ball 17 starts to rise along with the water level under the action of buoyancy. The floating ball 17 is hinged with the lifting guide rod 9 through a pin shaft 16, the lifting guide rod 9 is lifted at the same time when the floating ball 17 is lifted, when the floating ball 17 is lifted to the top, a through groove is formed in the upper portion of the guide rod 9 and is in sliding fit with a handle 10 of the air valve 11, the lifting guide rod 9 drives the air valve handle 10 to open the air valve 11, the atmospheric pipeline 12 is communicated with the inside of the cylinder, the water inlet sealing cover 3 closes the water inlet pipeline 4, and the water outlet sealing cover 18 of the water outlet pipeline 19 is opened to discharge water under the action of pressure. When the water is discharged, the floating ball 17 descends to the bottom, the lifting guide rod 9 drives the air valve handle 10 to close the air valve 11, the atmospheric pressure is cut off to be communicated with the inside of the cylinder, the water inlet pipe and the inside of the cylinder are in a negative pressure state, and a new cycle of water inlet and discharge is started.

Drawings

Fig. 1 is a schematic structural view of the automatic water discharger with high-efficiency deslagging function. In the figure: the device comprises a shell 1, a handle 2, a water inlet pipe sealing cover 3, a water inlet pipe 4, a sealing gasket 5, a linear bearing 6, a negative pressure balance pipeline 7, a sealing cover 8, a lifting guide rod 9, an air valve handle 10, an air valve 11, an air pipeline 12, a bolt assembly 13, an upper cover 14, a liquid level meter 15, a pin shaft 16, a floating ball 17, a water outlet sealing cover 18, a water outlet pipe 19 and a cylinder bottom 20.

Fig. 2 is an enlarged explanatory view of the elevation guide bar. 21 pin holes, 22 round guide posts and 23 long slotted holes.

Fig. 3 is a view showing the installation of the water discharger. 31 water inlet pipelines, 32 water inlet valves, 33 extraction valves, 34 extraction pipelines and 35 main extraction pipelines.

Detailed Description

Fig. 3 is a schematic view of the installation of the automatic water discharger for high-efficiency deslagging. The water inlet valve 31 and the extraction valve 32 are opened, water, gas and coal slag accumulated in the coal bed gas pipeline flow into the water drainer under the action of negative pressure, and the gas is pumped away by the main extraction pipeline 35 due to low density. When water in the water drainage device continuously flows in, the floating ball 17 rises to drive the lifting guide post 9 to rise, the air valve handle 10 is in clearance fit with the strip groove hole 23 of the lifting guide post 9 at the moment, when the floating ball rises to the top, the lifting guide post 9 drives the air valve handle 10 to rise to open the air valve 11, the atmospheric pipeline 12 is communicated with the inside of the water drainage device at the moment, atmospheric pressure enters the water drainage device, and the water inlet pipe sealing cover 3 seals the water inlet pipe 4 under the action of negative pressure of the extraction pipeline. The water outlet sealing cover 18 is opened under the pressure of the water in the water discharger, and the water and some coal cinder flow to the outside. Along with the continuous outflow of water, the water level drops, and the floating ball 17 drives the lifting guide rod 9 to move downwards. When the bottom position is reached, the lifting guide rod 9 drives the air valve handle 10 to close the air valve 11, and the atmospheric pipeline 12 is isolated from the external atmospheric pressure. The negative pressure balance pipeline 7 is communicated with the interior of the shell 1. The pressure inside the shell is consistent with the pressure inside the extraction pipeline 34. The water outlet sealing cover 18 automatically closes the water outlet pipe 19 under the action of negative pressure, so that the water accumulated in the water inlet pipe 4 flows into the water discharger. Completing the circulation of water feeding and discharging once.

In order to better discharge the water and the coal slag in the water discharger, the cylinder bottom 20 shown in fig. 1 is an inclined bottom surface, which facilitates smooth discharge of the coal slag and the coal slurry. A liquid level meter 15 is added outside the water discharger, so that a patrol worker can observe the height of the water level in the shell 1 conveniently. The contact parts of the water inlet pipe 4 and the water outlet pipe 19 with the sealing cover are downward inclined parts, so that the coal slag and the coal slime can be conveniently discharged along with water, and the sealing cover is beneficial to better sealing.

Claims

1. The utility model provides an automatic ware that drains of high-efficient slagging-off of colliery gas drainage system which characterized in that: the water discharger comprises three main components, namely (I) a water discharger cylinder, (II) an upper cover component and (III) a floating ball lifting component.

2. The shell of the water discharger of claim 1, wherein the shell comprises a shell 1, a handle 2, a water inlet sealing cover 3, a water inlet pipeline 4, a liquid level meter 15, a water outlet sealing cover 18, a water outlet pipeline 19, a cylinder bottom 20 and the like.

3. The device as claimed in claim 2, wherein the contact parts of the water inlet pipeline 4 and the water outlet pipeline 19 with the sealing cover are provided with a pipeline which is inclined downwards for facilitating slag discharge; the cylinder bottom 20 has an inclined angle with the horizontal plane, which is convenient for draining and discharging slag.

4. The upper cover assembly according to claim 1, which is composed of an upper cover 14, a tightening bolt assembly 13, an air valve 11, an atmosphere pipeline 12, a negative pressure balancing pipeline 7, an air valve handle 10, a sealing cover 8, a sealing gasket 5 and the like.

5. The upper cover assembly according to claim 4, wherein a gasket is provided between the sealing cover 8 and the upper cover 14, and is screwed with bolts so as not to leak gas.

6. The floating ball lifting assembly of claim 1, comprising a floating ball 17, a pin 16, a lifting guide rod 9, a linear bearing 6, etc.

7. The floating ball lifting assembly of claim 6, wherein the lifting guide rod 9 is hinged to the floating ball 17 by a pin 16, and the lifting guide rod 9 is in clearance fit with the linear bearing 6 to facilitate vertical lifting of the guide rod.

8. The floating ball lifting assembly of claim 6, wherein the elongated slot 23 of the lifting guide rod 9 is in clearance fit with the valve handle 10 to facilitate the lifting of the lifting guide rod 9. When the lifting guide rod 9 is lifted to a high position, the air valve handle 10 is driven to open the air valve 11, and when the lifting guide rod 9 is lowered to a low position, the air valve handle 10 is driven to close the air valve 11.