Mining automatic drainage device

Abstract

The utility model relates to the technical field of mining drainage equipment, in particular to a mining automatic drainage device. The automatic drainage device comprises a shell, an inner cavity of the shell is vertically divided into a gas path cavity and a drainage cavity by a sealing plate, a gas path module and a mechanical control module are correspondingly arranged in the gas path cavity and the drainage cavity respectively, and a first gas path pipe and a second gas path pipe on the gas path module penetrate through the sealing plate and are connected with the mechanical control module arranged in the drainage cavity. The device has the advantages that the safety coefficient of underground operation can be effectively improved by adopting pure mechanical design, electricity utilization danger in traditional electromagnetic needle detection is avoided, the whole device is integrally designed, a drainage cavity is used for replacing a traditional diaphragm pump, the problem that the diaphragm pump is prone to being damaged is avoided, and the whole device is simple in structure, low in cost, low in maintenance cost and suitable for popularization and application. The market requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of mine drainage equipment, in particular to an automatic mine drainage device. Background Art

[0002] In the process of coal mining, groundwater accumulation is a common problem. It not only affects the mining efficiency of coal mines, but also poses a threat to the safety of miners. Traditional underground drainage methods in coal mines usually use manual detection and electromagnetic needle detection to discharge water after reaching a certain level with a diaphragm pump. Manual detection is prone to problems such as untimely detection and high labor costs. Electromagnetic needle detection is currently a more common detection method, but the cost of electromagnetic needles is too high and the underground mine tunnels are complicated. It is expensive to lay long-distance electrified pipes. In addition, the special characteristics of underground long-distance electrified pipes will also cause safety hazards in some areas. Therefore, electromagnetic needle detection of mine water level needs to be replaced by a simpler, faster and safer method. In addition, the use of diaphragm pumps underground is not only expensive but also easy to damage.

[0003] Chinese patent CN201922091501.6 discloses an automatic drainage control device for a mining air pump, which uses high and low water level floats to sense the water level to control the corresponding air-controlled two-position three-way valve A to supply air to the diaphragm pump. The entire process uses many linkage components that are prone to damage, and the defects of the diaphragm pump cannot be solved. The cost of use is also high and does not meet market needs.

[0004] Therefore, there is an urgent need to design a safer, more durable and efficient drainage device to replace the current diaphragm pump. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic drainage device for mines, which uses a float to drive a transmission rod to control the switch of a mechanical two-way valve to directly control the ventilation of a pneumatic two-position three-way valve A to inflate and pressurize the drainage chamber below to perform drainage work. It not only solves the risks of traditional manual detection, but also solves the problems of electromagnetic needle hardware and circuit laying being too expensive, having a high risk factor, and the diaphragm pump being easily damaged.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An automatic drainage device for a mine, comprising a housing, an inner cavity of the housing being divided into an air path cavity and a drainage cavity by a sealing plate, wherein an air path module and a mechanical control module are respectively provided in the housing, and a first air path pipe and a second air path pipe on the air path module pass through the sealing plate and are connected to the mechanical control module provided in the drainage cavity;

[0008] The mechanical control module includes a mechanical two-way valve A and a mechanical two-way valve B vertically arranged at the bottom of the closed plate. A transmission bracket is vertically arranged at the center of the line connecting the two valves. The bottom of the transmission bracket is rotatably connected to a transversely arranged transmission rod. The transverse extension direction of the transmission rod is in the same vertical plane as the mechanical two-way valve A and the mechanical two-way valve B. The transmission rod is rotatably connected to the float ball through a connecting rod at one end close to the mechanical two-way valve B.

[0009] The air circuit module includes an air inlet pipe, an air-controlled two-position three-way valve A and an air outlet pipe that are sequentially connected from top to bottom. One end of the air inlet pipe away from the air-controlled two-position three-way valve A passes through the top of the shell and is connected to the switch valve A. One end of the outlet pipe away from the air-controlled two-position three-way valve A passes through the air outlet on the sealed plate and extends into the water inlet and outlet cavity. The air inlet pipe is also connected with a pipe of the three-way valve in the air circuit cavity. The other two pipes of the three-way valve are connected with the first air circuit pipe and the second air circuit pipe respectively. The first air circuit pipe and the second air circuit pipe are respectively passed through the sealed plate and into the water inlet and outlet cavity. The first air circuit pipe is connected with the third air circuit pipe through a mechanical two-way valve A. The other end of the third air circuit pipe is arranged on the first working air hole. The second air circuit pipe is connected with the fourth air circuit pipe through the mechanical two-way valve B of the control passage. The other end of the fourth air circuit pipe is arranged on the second working air hole.

[0010] Preferably, the position where the transmission rod is connected to the bottom of the transmission bracket is the midpoint of the transmission rod, and the length of the transmission rod is equal to the straight-line distance between the mechanical two-way valve A and the mechanical two-way valve B.

[0011] Preferably, a water inlet pipe and a drain pipe connected to the drainage cavity are provided at the bottom of the shell, and both the water inlet pipe and the drain pipe are provided with a one-way valve.

[0012] Preferably, a support frame is provided at the bottom of the shell, and a water level monitoring column for observing the water level is provided on the side wall of the shell.

[0013] Preferably, a filter barrel is provided at the outermost opening of the water inlet pipe, and a plurality of water inlet holes with a diameter of 5-10 mm are provided on the side wall and the bottom of the filter barrel.

[0014] Preferably, the outer side walls that the air outlet pipe, the first air path pipe, the second air path pipe, the third air path pipe and the fourth air path pipe contact with when passing through the sealed plate are all sealed.

[0015] Preferably, the float always floats on the water surface of the drainage cavity.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model adopts a purely mechanical design of a float and a transmission rod to control a two-way valve, which not only avoids the problem of high equipment cost of electromagnetic needle detection, but also avoids the problem of high risk factor when using electrical appliances due to the presence of gas underground. The entire device can work as long as the force changes, thereby improving the overall stability.

[0018] 2. The utility model avoids the risk of water overflow caused by untimely detection during traditional manual detection. At the same time, manual detection also has certain risks underground, and the problem of personnel safety is effectively solved.

[0019] 3. The utility model has a simple structure. It uses the buoyancy of water to make the float rise to control the transmission rod to switch the air-controlled mechanical two-way valve to determine the ventilation pipeline, and then controls the valve core position of the air-controlled two-position three-way valve A according to the ventilation pipeline to determine whether to ventilate and pressurize the drainage chamber. The whole process is simple and efficient, and it is easy to repair when damaged, which meets market needs.

[0020] 4. The entire device is designed as an integrated whole. The shell is divided into an upper air path cavity and a lower drainage cavity, which replaces the traditional probe and diaphragm pump to make the entire device more integrated and efficient. The structure is simple, which is not only easy to install but also has low cost. It greatly improves the drainage efficiency and saves labor, which meets the current needs of enterprises.

[0021] In summary, the utility model is an automatic drainage device for mines. The purely mechanical design can effectively improve the safety factor of underground operations and avoid the danger of electricity use in traditional electromagnetic needle detection. The integrated design of the entire device replaces the traditional diaphragm pump with a drainage chamber to avoid the problem of easy damage to the diaphragm pump. The entire device has a simple structure and low cost, and the maintenance cost is also low, which is more in line with market needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the automatic drainage device of the utility model;

[0023] Figure 2 This is a partial structural diagram of the gas path module of the utility model;

[0024] Figure 3 This is a partial structural diagram of the mechanical control module of the utility model;

[0025] In the figure: shell 1; air path cavity 101; drainage cavity 102; air path module 2; air inlet pipe 201; switch valve A2011; three-way valve 202; air-controlled two-position three-way valve A203; first working air hole 2031; second working air hole 2032; first air path pipe 204; second air path pipe 205; air outlet pipe 206; third air path pipe 207; fourth air path pipe 208; mechanical control module 3; mechanical two-way valve A301; mechanical two-way valve B302; transmission bracket 303; transmission rod 304; connecting rod 305; sealing plate 306; air outlet 3061; float 307; one-way valve 4; water inlet pipe 5; drainage pipe 6; support frame 7; water level monitoring column 8. DETAILED DESCRIPTION

[0026] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0028] Please refer to the attached drawings, the utility model provides a technical solution:

[0029] A mine automatic drainage device includes a housing 1. The interior of the housing 1 is divided into an air path chamber 101 and a drainage chamber 102 by a sealing plate 306. An air path module 2 and a mechanical control module 3 are respectively provided in the housing 1. The first air path pipe 204 and the second air path pipe 205 on the air path module 2 pass through the sealing plate 306 and are connected to the mechanical control module 3 provided in the drainage chamber 102.

[0030] The mechanical control module 3 includes a mechanical two-way valve A301 and a mechanical two-way valve B302 vertically arranged at the bottom of a sealed plate 306. A transmission bracket 303 is vertically arranged at the center of the line connecting the two valves. The bottom of the transmission bracket 303 is rotatably connected to a transversely arranged transmission rod 304. The transverse extension direction of the transmission rod 304 is in the same vertical plane as the mechanical two-way valve A301 and the mechanical two-way valve B302. The transmission rod 304 is rotatably connected to a float 307 through a connecting rod 305 at one end near the mechanical two-way valve B302.

[0031] The air circuit module 2 includes an air inlet pipe 201, an air-controlled two-position three-way valve A203 and an air outlet pipe 206 which are connected in sequence from top to bottom. One end of the air inlet pipe 201 away from the air-controlled two-position three-way valve A203 passes through the top of the shell 1 and is connected to the switch valve A2011. One end of the air outlet pipe 206 away from the air-controlled two-position three-way valve A203 passes through the air outlet 3061 on the sealing plate 306 and extends into the water discharge cavity 102. The air inlet pipe 201 is also connected to one pipeline of the three-way valve 202 in the air circuit cavity 101, and the other two pipelines of the three-way valve 202 are respectively The first air circuit pipe 204 and the second air circuit pipe 205 are respectively connected to each other, and the first air circuit pipe 204 and the second air circuit pipe 205 are respectively passed through the sealing plate 306 to pass through the water inlet and outlet cavity 102. The first air circuit pipe 204 is connected to the third air circuit pipe 207 through the mechanical two-way valve A301, and the other end of the third air circuit pipe 207 is arranged on the first working air hole 2031. The second air circuit pipe 205 is connected to the fourth air circuit pipe 208 through the mechanical two-way valve B302 of the control passage, and the other end of the fourth air circuit pipe 208 is arranged on the second working air hole 2032.

[0032] Furthermore, the position where the transmission rod 304 is connected to the bottom of the transmission bracket 303 is the midpoint of the transmission rod 304, and the length of the transmission rod 304 is equal to the straight-line distance between the mechanical two-way valve A301 and the mechanical two-way valve B302.

[0033] Furthermore, a water inlet pipe 5 and a drain pipe 6 connected to the drainage chamber 102 are provided at the bottom of the shell 1 , and a one-way valve 4 is provided on both the water inlet pipe 5 and the drain pipe 6 .

[0034] Furthermore, a support frame 7 is provided at the bottom of the shell 1, and a water level monitoring column 8 for observing the water level is provided on the side wall of the shell 1.

[0035] Furthermore, a filter barrel is provided at the outermost opening of the water inlet pipe 5, and a plurality of water inlet holes with a diameter of 5-10 mm are provided on the side wall and the bottom of the filter barrel.

[0036] Furthermore, the outer side walls that the air outlet pipe 206 , the first air line pipe 204 , the second air line pipe 205 , the third air line pipe 207 and the fourth air line pipe 208 contact with when passing through the sealing plate 306 are all sealed.

[0037] Furthermore, the float 307 always floats on the water surface of the drainage chamber 102 .

[0038] How it works:

[0039] When the water level in the drainage chamber 102 to be monitored continues to rise, the float 307 on the water surface will also be affected by the buoyancy of the water surface and will drive one end of the connecting rod 305 and the transmission rod 304 to rise continuously until the water level in the drainage chamber 102 is reduced to 0. When the mechanical two-way valve B302 is squeezed, the mechanical two-way valve B302 will be in the open state and the mechanical two-way valve A301 will be closed. At this time, the gas passes through the second air path pipe 205 and the fourth air path pipe 208 to reach the second working air hole 2032 of the air-controlled two-position three-way valve A203. The gas will push the valve core to move so that the air inlet pipe 201 and the air outlet pipe 206 form a passage. At this time, the gas can enter the drainage chamber 102 to pressurize the drainage chamber 102. As the air pressure increases, the water in the drainage chamber 102 will be continuously discharged from the cavity through the drainage pipe 6 until the float 307 starts to move downward and no longer squeezes the mechanical two-way valve B302, and the mechanical control module 3 returns to its initial state.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic drainage device for mines, characterized by: The automatic drainage device comprises a housing (1), wherein the inner cavity of the housing (1) is divided into an air path cavity (101) and a drainage cavity (102) by a sealing plate (306) at the upper and lower sides, wherein an air path module (2) and a mechanical control module (3) are respectively provided therein, and a first air path pipe (204) and a second air path pipe (205) on the air path module (2) pass through the sealing plate (306) and are connected to the mechanical control module (3) provided in the drainage cavity (102); The mechanical control module (3) includes a mechanical two-way valve A (301) and a mechanical two-way valve B (302) vertically arranged at the bottom of a sealed plate (306), a transmission bracket (303) is vertically arranged at the center of the line connecting the two, the bottom of the transmission bracket (303) is rotatably connected to a transversely arranged transmission rod (304), the transverse extension direction of the transmission rod (304) is on the same vertical plane as the mechanical two-way valve A (301) and the mechanical two-way valve B (302), and the transmission rod (304) is rotatably connected to a float (307) through a connecting rod (305) at one end close to the mechanical two-way valve B (302); The air circuit module (2) comprises an air inlet pipe (201), an air-controlled two-position three-way valve A (203), and an air outlet pipe (206) which are sequentially connected from top to bottom. The end of the air inlet pipe (201) away from the air-controlled two-position three-way valve A (203) passes through the top of the housing (1) and is connected to the switch valve A (2011). The end of the air outlet pipe (206) away from the air-controlled two-position three-way valve A (203) passes through the air outlet (3061) on the sealing plate (306) and extends into the water cavity (102). The air inlet pipe (201) is also connected to one pipeline of the three-way valve (202) in the air circuit cavity (101). The other two pipelines of the three-way valve (202) are connected to the air outlet (3061) on the sealing plate (306). The first air pipe (204) and the second air pipe (205) are respectively connected to the first air pipe (204) and the second air pipe (205), and the first air pipe (204) and the second air pipe (205) are respectively passed through the sealing plate (306) and are arranged in the water inlet and outlet cavity (102). The first air pipe (204) is connected to the third air pipe (207) through a mechanical two-way valve A (301), and the other end of the third air pipe (207) is arranged on the first working air hole (2031). The second air pipe (205) is connected to the fourth air pipe (208) through a mechanical two-way valve B (302) of the control passage, and the other end of the fourth air pipe (208) is arranged on the second working air hole (2032).

2. The automatic drainage device for mines according to claim 1, characterized in that: The position where the transmission rod (304) is connected to the bottom of the transmission bracket (303) is the midpoint of the transmission rod (304), and the length of the transmission rod (304) is equal to the straight-line distance between the mechanical two-way valve A (301) and the mechanical two-way valve B (302).

3. The automatic drainage device for mines according to claim 1, characterized in that: A water inlet pipe (5) and a drain pipe (6) connected to the drain chamber (102) are provided at the bottom of the housing (1), and a one-way valve (4) is provided on each of the water inlet pipe (5) and the drain pipe (6).

4. The automatic drainage device for mines according to claim 1, characterized in that: A support frame (7) is provided at the bottom of the shell (1), and a water level monitoring column (8) for observing the water level is provided on the side wall of the shell (1).

5. The automatic drainage device for mines according to claim 3, characterized in that: A filter barrel is provided at the outermost opening of the water inlet pipe (5), and a plurality of water inlet holes with a diameter of 5-10 mm are provided on the side wall and the bottom of the filter barrel.

6. The automatic drainage device for mines according to claim 1, characterized in that: The outer side walls of the air outlet pipe (206), the first air line pipe (204), the second air line pipe (205), the third air line pipe (207) and the fourth air line pipe (208) that come into contact with the sealing plate (306) are all sealed.

7. The automatic drainage device for mines according to claim 1, characterized in that: The float (307) always floats on the water surface of the drainage chamber (102).

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