Device for supplementing liquid to single prop by utilizing coal mine underground static pressure water pressurization

Abstract

The utility model discloses a supercharging device for supplementing liquid to a single prop by using coal mine underground static pressure water, which comprises a main machine base, a main machine shell, a safety pressure regulating valve, a flange plate, a fixing bolt, an automatic proportioning valve, an emulsified oil tank, a liquid outlet pressure gauge, a liquid inlet pressure gauge, an oil tank cover, a liquid inlet pressure gauge rubber pipe, a liquid inlet K-shaped joint, a gate valve, a filter and a liquid inlet rubber pipe, the hydraulic booster pump comprises a piston, a reversing valve element, a cylinder barrel, a plunger rod, a high-pressure water seal, a high-pressure liquid cavity, a one-way valve, a cover plate, a high-pressure liquid outlet connector, a high-pressure liquid outlet rubber pipe and a high-pressure liquid outlet K-shaped connector. The automatic proportioning valve is installed on the upper side of the hydraulic booster pump, and the flange plate presses the automatic proportioning valve tightly and is screwed with the main machine base through the fixing bolt. The liquid outlet pressure gauge and the liquid inlet pressure gauge are installed on the front side of the main machine shell. The liquid inlet K-type connector, the gate valve and the filter are connected into a whole through the liquid inlet rubber pipe and then connected to a liquid inlet hole of the automatic proportioning valve, and therefore the device for supplementing liquid to the single prop through coal mine underground static pressure water pressurization is formed.

Description

Technical Field

[0001] The utility model relates to a device for increasing the pressure of static water in coal mines to replenish liquid for monomer pillars. Specifically, it is a device that uses static water with natural pressure in coal mines to supply water to the device. It can increase the pressure of water in coal mines to more than 20MPa without power supply and wind pressure, and can automatically mix emulsion to increase the pressure and replenish liquid for monomer pillars. Background Art

[0002] At present, the main support method for underground coal mine excavation faces is to use single hydraulic props, which requires equipment to replenish the single hydraulic props. There are currently two types of such equipment: one is an electric emulsion pump, and the other is a pneumatic emulsion pump; the electric emulsion pump drives the booster pump through a motor to increase the pressure of the underground 1.5MPa static pressure water to 20MPa, and the external emulsion proportioning box is large in size and weight, requires power, and is prone to electrical safety hazards; the pneumatic emulsion pump drives the booster pump through a pneumatic motor to increase the pressure of the underground 1.5MPa static pressure water to 20MPa, and the external emulsion proportioning box is large in size and weight, requires power, and is prone to electrical safety hazards; the pneumatic emulsion pump drives the booster pump through a pneumatic motor to increase the pressure of the underground 1.5MPa static pressure water to 20MPa, and the external emulsion proportioning box is large in size and weight, requires power, and is prone to electrical safety hazards. The proportioning box is large in size and heavy in weight. When the wind pressure is lower than 0.5MPa, the pressurization effect cannot reach the 20MPa pressure requirement, which may easily bring hidden dangers to support safety. These two types of booster pumps are difficult to move in the short and narrow excavation face, and it is difficult to achieve the effect of following the excavation face mining and replenishing the hydraulic support. However, there is currently no device that is small in size, light in weight, easy to move, can follow the excavation face mining, does not use electricity and wind pressure as power, directly uses the 1.5MPa static pressure water in the well as power, raises the static pressure water to 20MPa, and can automatically proportion the emulsion to replenish the single hydraulic support to solve this problem. Summary of the invention

[0003] The utility model aims to solve the problems that "the main supporting method for mining in underground coal mine heading faces is still to use single hydraulic props, which requires equipment for replenishing fluid for the single hydraulic props. Currently, there are two types of such equipment: one is an electric emulsion pump and the other is a pneumatic emulsion pump. The electric emulsion pump increases the pressure of 1.5MPa static pressure water in the well to 20MPa by driving a booster pump with a motor, and an external emulsion proportioning box is large in size and weight, requires power supply, and is prone to safety hazards. The pneumatic emulsion pump increases the pressure of 1.5MPa static pressure water in the well to 20MPa by driving a booster pump with a pneumatic motor, and an external emulsion proportioning box is large in size and weight. When the wind pressure is lower than 0.5MPa, the boosting effect cannot reach the pressure requirement of 20MPa, which is prone to safety hazards. These two booster pumps are difficult to move in short and narrow heading faces, and it is difficult to achieve the follow-up mining in the heading face to replenish fluid for the single hydraulic props". A device for replenishing fluid for the single props by boosting the static pressure water in the coal mine is proposed.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A device for replenishing liquid to a single pillar by using static water boosting in a coal mine, comprising a main engine base 1, a main engine housing 2, a safety pressure regulating valve 3, a flange 4, a fixing bolt 5, an automatic proportioning valve 6, an emulsified oil tank 7, a liquid outlet pressure gauge 8, a liquid inlet pressure gauge 9, an oil tank cover 10, a liquid inlet pressure gauge hose 11, a liquid inlet K-type joint 12, a gate valve 13, a filter 14, a liquid inlet hose 15, a hydraulic booster pump 16, a piston 17, a reversing valve core 18, a cylinder 19, The plunger rod 20, the high-pressure water seal 21, the high-pressure liquid chamber 22, the one-way valve 23, the cover plate 24, the high-pressure liquid outlet joint 25, the high-pressure liquid outlet hose 26, and the high-pressure liquid outlet K-type joint 27 are characterized in that the plunger rod 20 is installed on the right side of the piston 17, the reversing valve core 18 is installed in the piston 17, the piston 17 is installed in the cylinder 19, and the cylinder 19 is installed in the hydraulic booster pump 16; the one-way valve 23 is installed on the upper side of the hydraulic booster pump 16 and is pressed by the cover plate 24 , the safety pressure regulating valve 3 is installed on the left side of the cover plate 24, and the high-pressure liquid outlet joint 25 is tightened on the upper side of the cover plate 24; the automatic proportioning valve 6 is installed on the upper side of the hydraulic booster pump 16, the flange 4 is welded to the emulsified oil tank 7, the tank cover 10 is tightened to the upper end of the emulsified oil tank 7, the flange 4 presses the automatic proportioning valve 6, and then tightens it with the main engine base 1 with the fixing bolt 5; the liquid outlet pressure gauge 8 and the liquid inlet pressure gauge 9 are respectively installed on the front side of the main engine housing 2, and the liquid inlet pressure gauge glue is used respectively. The tube 11 is connected to the high-pressure liquid outlet hose 26, the liquid inlet pressure gauge hose 11 is connected to the water inlet hole of the automatic proportioning valve 6, and the high-pressure liquid outlet hose 26 is connected to the rear side of the cover plate 24; the liquid inlet K-type joint 12, the gate valve 13, and the filter 14 are connected together through the liquid inlet hose 15, and then connected to the liquid inlet hole of the automatic proportioning valve 6, and the high-pressure liquid outlet K-type joint 27 is connected to the high-pressure liquid outlet hose 26, forming a device for replenishing liquid to a single pillar by using static pressure water boosting in coal mines.

[0006] In order to further facilitate the control operation, the hydraulic booster pump 16 is equipped with an automatic proportioning valve 6 and an emulsified oil tank 7 to ensure automatic proportioning of the emulsion during the boosting process.

[0007] The utility model has the following advantages over the existing rust remover:

[0008] 1. It has the function of boosting and replenishing fluid without power supply and wind pressure: a hydraulic booster pump 16 is installed on the main engine base 1, which directly uses the static pressure water in the coal mine to boost and replenish fluid for the single hydraulic support.

[0009] 2. It has the function of automatic proportioning of emulsion: the automatic proportioning valve 6 is installed on the hydraulic booster pump 16, and the emulsion oil is added into the emulsion oil tank 7, and the emulsion can be discharged from the high-pressure liquid outlet hose 26 to the high-pressure liquid outlet K-type joint 27, and then replenished to the single hydraulic support.

[0010] 3. Pressure comparison function: The main body housing 2 is installed with a liquid inlet pressure gauge 9 and a liquid outlet pressure gauge 8, which can visually compare the static water pressure of the liquid inlet and the high-pressure water pressure of the liquid outlet. When it is observed that the liquid outlet pressure gauge 8 is greater than 20MPa, adjust the safety pressure regulating valve 3 to reach the required pressure.

[0011] Simple structure: A device that uses static pressure water in coal mines to boost the pressure to replenish liquid to a single pillar. It is small in size, light in weight, has a complete range of specifications and models, is easy to install, and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below based on the drawings and embodiments.

[0013] Figure 1 The present invention is a structural diagram of a device for replenishing liquid to a single pillar by using static pressure water boosting in coal mines;

[0014] In the figure:

[0015] Main engine base 1, main engine housing 2, safety pressure regulating valve 3, flange 4, fixing bolt 5, automatic proportioning valve 6, emulsified oil tank 7, liquid outlet pressure gauge 8, liquid inlet pressure gauge 9, oil tank cover 10, liquid inlet pressure gauge hose 11, liquid inlet K-type joint 12, gate valve 13, filter 14, liquid inlet hose 15, hydraulic booster pump 16, piston 17, reversing valve core 18, cylinder 19, plunger rod 20, high-pressure water seal 21, high-pressure liquid chamber 22, one-way valve 23, cover plate 24, high-pressure liquid outlet joint 25, high-pressure liquid outlet hose 26, high-pressure liquid outlet K-type joint 27 DETAILED DESCRIPTION

[0016] The utility model embodiment of the invention is a device for replenishing liquid to a single pillar by using static water pressure boosting in a coal mine, comprising a main engine base 1, a main engine housing 2, a safety pressure regulating valve 3, a flange 4, a fixing bolt 5, an automatic proportioning valve 6, an emulsified oil tank 7, a liquid outlet pressure gauge 8, a liquid inlet pressure gauge 9, an oil tank cover 10, a liquid inlet pressure gauge hose 11, a liquid inlet K-type joint 12, a gate valve 13, a filter 14, a liquid inlet hose 15, a hydraulic booster pump 16, a piston 17, and a reversing valve core. 18, cylinder 19, plunger rod 20, high-pressure water seal 21, high-pressure liquid chamber 22, one-way valve 23, cover plate 24, high-pressure liquid outlet joint 25, high-pressure liquid outlet hose 26, high-pressure liquid outlet K-type joint 27; characterized in that the plunger rod 20 is installed on the right side of the piston 17, the reversing valve core 18 is installed in the piston 17, the piston 17 is installed in the cylinder 19, and the cylinder 19 is installed in the hydraulic booster pump 16; the one-way valve 23 is installed on the upper side of the hydraulic booster pump 16 for The cover plate 24 is pressed tightly, the safety pressure regulating valve 3 is installed on the left side of the cover plate 24, and the high-pressure liquid outlet joint 25 is tightened on the upper side of the cover plate 24; the automatic proportioning valve 6 is installed on the upper side of the hydraulic booster pump 16, the flange 4 is welded to the emulsified oil tank 7, the tank cover 10 is tightened to the upper end of the emulsified oil tank 7, the flange 4 presses the automatic proportioning valve 6, and then tightens it with the main engine base 1 with the fixing bolts 5; the liquid outlet pressure gauge 8 and the liquid inlet pressure gauge 9 are respectively installed on the front side of the main engine housing 2, and are respectively used for the hydraulic inlet pressure gauge 10. The pressure gauge hose 11 and the high-pressure liquid outlet hose 26 are connected, the liquid inlet pressure gauge hose 11 is connected to the water inlet hole of the automatic proportioning valve 6, and the high-pressure liquid outlet hose 26 is connected to the rear side of the cover plate 24; the liquid inlet K-type joint 12, the gate valve 13, and the filter 14 are connected together through the liquid inlet hose 15, and then connected to the liquid inlet hole of the automatic proportioning valve 6, and the high-pressure liquid outlet K-type joint 27 is connected to the high-pressure liquid outlet hose 26, forming a device for replenishing liquid to a single pillar by using static pressure water boosting in coal mines.

[0017] During operation, the static pressure water of ≥1.5MPa in the coal mine enters the automatic proportioning valve 6 through the liquid inlet K-type joint 12, the gate valve 13, the filter 14, and the liquid inlet hose 15. The water and the emulsified oil in the emulsified oil tank 7 are automatically proportioned to form an emulsion and enter the hydraulic booster pump 16. The cross-sectional area of ​​the piston 17 is 16 times the cross-sectional area of ​​the plunger rod 20. The emulsion with a pressure of ≥1.5MPa pushes the piston 17 to move forward, and the piston 17 drags the valve core 18 and the plunger rod 20 to move forward. The plunger rod 20 pushes the emulsion in the high-pressure liquid chamber 22 through the cover plate 24, the one-way valve 23, the high-pressure liquid outlet joint 25, and the high-pressure liquid outlet hose 26 into the high-pressure liquid outlet K-type joint 27, forming a high-pressure liquid that is 15 times higher than the liquid inlet pressure; when the piston 17 moves forward to its limit point, the reversing valve core 18 reverses the emulsion with a pressure of ≥1.5MPa under the action of the pressure difference, and the piston 17 drags the reversing valve core 18 and the plunger rod 20 to move backward, so that the high-pressure liquid chamber 22 is filled with emulsion. When the piston 17 moves backward to its limit point, the reversing valve core 1 8 Under the action of the pressure difference, the emulsion with a pressure ≥1.5MPa is reversed, the piston 17 drags the valve core 18, the plunger rod 20 moves forward, and the plunger rod 20 pushes the emulsion in the high-pressure liquid chamber 22 through the cover plate 24, the one-way valve 23, the high-pressure liquid outlet joint 25, and the high-pressure liquid outlet hose 26 into the high-pressure liquid outlet K-type joint 27, forming a high-pressure liquid that is 15 times higher than the inlet pressure; the one-way valve 23 cannot allow the high-pressure emulsion in the high-pressure liquid outlet hose 26 to return, so that the piston 17 drags the plunger rod 20 to make a reciprocating motion in the cylinder, continuously supplying liquid to the high-pressure liquid outlet hose 26 to increase the pressure, so that the pressure in the pipe is ≥22.5MPa, which plays a role in using the static pressure water in the coal mine to increase the pressure to replenish the single pillar.

[0018] When stopping working, close the gate valve 13, stop supplying water to the hydraulic booster pump 16, stop the whole machine working, and remove the high-pressure hose except the high-pressure liquid outlet K-type joint 27 for next use.

[0019] Practice has proved that this device has been used in mines for many times. According to the above implementation plan, a device for replenishing liquid to a single pillar by using static water pressure boosting in coal mines can be selected between 1MPa, 2MPa, 3MPa, and 4MPa according to the needs of coal mines; the liquid outlet pressure can be selected between 15MPa, 30MPa, 45MPa, and 60MPa. A device for replenishing liquid to a single pillar by using static water pressure boosting in coal mines not only has the function of replenishing liquid to a single hydraulic pillar, but also has the function of supplying liquid to the anchor cutter, tensioning equipment, etc. in coal mines. It is fully functional, runs smoothly, is flexible to adjust, and is safe and reliable.

Claims

1. A device for replenishing liquid to a single pillar by using static water boosting in a coal mine, comprising a main engine base (1), a main engine housing (2), a safety pressure regulating valve (3), a flange (4), a fixing bolt (5), an automatic proportioning valve (6), an emulsified oil tank (7), a liquid outlet pressure gauge (8), a liquid inlet pressure gauge (9), an oil tank cover (10), a liquid inlet pressure gauge hose (11), a liquid inlet K-type joint (12), a gate valve (13), a filter (14), a liquid inlet hose (15), a hydraulic booster pump (16), a piston (17), a reversing valve core (18), a cylinder (19), a plunger rod (20), a high-pressure water seal (21), a high-pressure liquid chamber (22), a one-way valve (23), a cover plate (24), a high-pressure liquid outlet joint (25), a high-pressure liquid outlet hose (26), and a high-pressure liquid outlet K-type joint (27); characterized in that The plunger rod (20) is installed on the right side of the piston (17), the reversing valve core (18) is installed in the piston (17), the piston (17) is installed in the cylinder (19), and the cylinder (19) is installed in the hydraulic booster pump (16); the one-way valve (23) is installed on the upper side of the hydraulic booster pump (16) and is pressed by a cover plate (24), the safety pressure regulating valve (3) is installed on the left side of the cover plate (24), and the high-pressure liquid outlet joint (25) is tightened on the upper side of the cover plate (24); the automatic proportioning valve (6) is installed on the upper side of the hydraulic booster pump (16), the flange plate (4) is welded to the emulsified oil tank (7), the oil tank cover (10) is tightened to the upper end of the emulsified oil tank (7), the flange plate (4) presses the automatic proportioning valve (6), and then the fixing screw is used to fix the automatic proportioning valve (6). The bolt (5) is tightened with the main engine base (1); the liquid outlet pressure gauge (8) and the liquid inlet pressure gauge (9) are respectively installed on the front side of the main engine housing (2), and are respectively connected by a liquid inlet pressure gauge hose (11) and a high-pressure liquid outlet hose (26); the liquid inlet pressure gauge hose (11) is connected to the water inlet hole of the automatic proportioning valve (6), and the high-pressure liquid outlet hose (26) is connected to the rear side of the cover plate (24); the liquid inlet K-type joint (12), the gate valve (13), and the filter (14) are connected to one body through the liquid inlet hose (15), and then connected to the liquid inlet hole of the automatic proportioning valve (6); the high-pressure liquid outlet K-type joint (27) is connected to the high-pressure liquid outlet hose (26), forming a device for replenishing liquid to a single pillar by using static pressure water boosting in a coal mine.

2. The device for replenishing liquid to a single pillar by using static pressure water boosting in a coal mine according to claim 1, characterized in that Static pressure water of ≥1.5MPa in the coal mine enters the automatic proportioning valve (6) through the liquid inlet K-type joint (12), the gate valve (13), the filter (14), and the liquid inlet hose (15). The water and the emulsified oil in the emulsified oil tank (7) are automatically proportioned to form an emulsion and enter the hydraulic booster pump (16). The cross-sectional area of ​​the piston (17) is 16 times the cross-sectional area of ​​the plunger rod (20). The emulsion with a pressure of ≥1.5 MPa pushes the piston (17) to move forward, and the piston (17) drags the valve core (18) and the plunger rod (20) to move forward. The plunger rod (20) pushes the emulsion in the high-pressure liquid chamber (22) through the cover plate (24), the one-way valve (23), the high-pressure liquid outlet joint (25), and the high-pressure liquid outlet hose (26) to enter the high-pressure liquid outlet K-type joint (27), thereby forming a high-pressure liquid that is 15 times higher than the inlet pressure. When the piston (17) moves forward to its limit point, the reversing valve core (18) changes the direction of the emulsion with a pressure of ≥1.5 MPa under the action of the pressure difference, and the piston (17) drags the reversing valve core (18) and the plunger rod (20) to move backward, so that the high-pressure liquid chamber (22) is filled with the emulsion. When the piston (17) moves backward to its limit point, the reversing valve core (18) The core (18) changes the direction of the emulsion with a pressure of ≥1.5 MPa under the action of the pressure difference, and the piston (17) drags the valve core (18) and the plunger rod (20) to move forward. The plunger rod (20) pushes the emulsion in the high-pressure liquid chamber (22) through the cover plate (24), the one-way valve (23), the high-pressure liquid outlet joint (25), and the high-pressure liquid outlet hose (26) into the high-pressure liquid outlet K-type joint (27), thereby forming a high-pressure liquid that is 15 times higher than the inlet pressure. The one-way valve (23) cannot allow the high-pressure emulsion in the high-pressure liquid outlet hose (26) to return. In this way, the piston (17) drags the plunger rod (20) to make a reciprocating motion in the cylinder barrel, continuously supplying liquid to the high-pressure liquid outlet hose (26) to increase the pressure, so that the pressure in the hose is ≥22.5 MPa, thereby playing a role in using the static pressure water in the coal mine to increase the pressure and replenish the liquid to the single pillar.

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