Novel underground efficient long-distance desilting device

Abstract

The utility model relates to a novel underground efficient long-distance desilting device. The feeding distance of an existing vacuum material storage tank is limited, so that the pneumatic coal slime separating device comprises a pneumatic coal slime stirrer, the vacuum material storage tank, a centrifugal spiral solid-liquid separator, a vibrating screen and a plurality of intermediate tanks, a feeding pipe and a pressurizing pipe are arranged on the side wall or the top of each intermediate tank, a discharging pipe is arranged at the bottom of each intermediate tank, a discharging valve is arranged on each discharging pipe, and a discharging valve is arranged on each discharging valve. A pressurizing valve is arranged on the pressurizing pipe, the pressurizing pipe is communicated with a matched high-pressure air pipe and provided with an exhaust pipe with an exhaust valve, a feeding pipe of each intermediate tank is communicated with an upstream framework hose of the intermediate tank, a discharging pipe of each intermediate tank is connected with a downstream framework hose of the intermediate tank, and an oversize solid discharging port of the vibrating screen is located above a matched rubber belt conveyor. Oversize liquid discharge of the vibrating screen is conveyed to an inlet of the centrifugal spiral solid-liquid separator through a discharge pump. The utility model is suitable for coal mines with the rubber belt conveyor farther away from drainage ditches, mining area water sumps and shaft bottom central water sumps.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel high -efficient long distance dredging device in pit. BACKGROUND

[0002] Coal slurry and water produced in the links of coal mining, washing, storage and the like are difficult to flow and solidify, which brings many inconveniences to the production of the mine, affects the process flow cycle of the coal mining, and even seriously endangers the safety production of the coal mine.

[0003] The coal slurry and water in the coal mine are mainly concentrated in three places, i.e. the drainage ditch, the water sump of the mining area and the central water sump at the bottom of the well, which need to be treated regularly.

[0004] For a long time, the treatment of the coal slurry and water in the coal mine is concentrated in the water sump of the mining area and the central water sump at the bottom of the well. Since the drainage ditch has a long conveying distance and the coal slurry and water flow and solidify at the same time, the dynamic characteristics are too strong, which leads to the lack of cleaning equipment at present, so it is very difficult to treat, and it is forced to use the original manual cleaning method.

[0005] The Chinese invention patent with the publication number CN112483167A disclosed on 2021.03.12 discloses a mine coal slurry cleaning device and its use method. The mine coal slurry cleaning device comprises a pneumatic coal slurry agitator, a vacuum storage tank, a jet pump, a centrifugal screw solid-liquid separator and a screw conveyor. The pneumatic coal slurry agitator comprises a pneumatic motor, an agitating claw and a slurry suction pipe. The invention can stir the coal slurry into the vacuum storage tank. Then, the exhaust valve and the material suction valve are closed, and the material discharge valve is opened. The jet pump is used as a pipeline to fill the vacuum storage tank with compressed air. At this time, only the local jet pump is used as a pipeline. The coal slurry is pressed into the centrifugal screw solid-liquid separator by compressed air. The coal slurry block and water are separated by the centrifugal screw solid-liquid separator, and the coal slurry block is transferred to the belt conveyor by the screw conveyor for recycling. The mine coal slurry cleaning device is labor-saving and efficient. Its use method is simple and easy to operate, but there is room for improvement.

[0006] 1. The centrifugal screw solid-liquid separator and the screw conveyor are usually installed at the position of the belt conveyor, and the vacuum storage tank has limited material suction distance and feeding distance, which is not suitable for use in the coal mine where the distance between the belt conveyor and the drainage ditch, the water sump of the mining area and the central water sump at the bottom of the well is far.

[0007] 2. The stirring effect of the agitating claw of the pneumatic coal slurry agitator needs to be improved. SUMMARY

[0008] The technical problem to be solved by the utility model is how to fill the above-mentioned gap in the prior art, and to provide a novel high-efficiency long-distance dredging device in pit.

[0009] To solve the above technical problems, the new high-efficiency long-distance dredging device in the well comprises a pneumatic coal slurry agitator, a vacuum material storage tank and a centrifugal screw solid-liquid separator, the side wall or top of the vacuum material storage tank is provided with a material suction pipe with a material suction valve and a ventilation pipe, the bottom of the vacuum material storage tank is provided with a material discharge pipe, the material discharge pipe is provided with a material discharge valve, the vacuum material storage tank is provided with a jet pump, the suction inlet of the jet pump is communicated with the ventilation pipe, the air inlet of the jet pump is communicated with a high-pressure air pipe through an air inlet valve, the pneumatic coal slurry agitator is provided with a slurry suction pipe, the material suction pipe is communicated with the slurry suction pipe through a steel wire frame flexible pipe, the outlet of the jet pump is communicated with the material discharge pipe downstream of the material discharge valve through an exhaust pipe with an exhaust valve, and the device further comprises a vibrating screen, the vibrating screen is arranged between the vacuum material storage tank and the centrifugal screw solid-liquid separator and is provided with a vibrating motor, the inlet of the vibrating screen is connected with the material discharge pipe of the vacuum material storage tank through a conveying pipe, an intermediate tank is arranged every 40-50 meters on the conveying pipe, the side wall or top of each intermediate tank is provided with a material inlet pipe and a pressurizing pipe, the bottom of each intermediate tank is provided with a material discharge pipe, the material discharge pipe is provided with a material discharge valve, the pressurizing pipe is provided with a pressurizing valve and is communicated with the high-pressure air pipe, the pressurizing pipe between the pressurizing valve and the intermediate tank or the intermediate tank is further provided with an exhaust pipe with an exhaust valve, the material inlet pipe of each intermediate tank is communicated with the conveying pipe upstream of the intermediate tank, and the material discharge pipe of each intermediate tank is connected with the conveying pipe downstream of the intermediate tank, the solid material outlet of the vibrating screen is located above the rubber belt conveyor, and the liquid material outlet of the vibrating screen is sent to the inlet of the centrifugal screw solid-liquid separator through a discharge pump.

[0010] In use, according to the actual distance between the rubber belt conveyor and the drainage ditch, the water sump in the mining area and the central water sump at the well bottom, a flexible pipe with a proper length and a proper number of intermediate tanks are arranged between the inlet of the vibrating screen and the material discharge pipe of the vacuum material storage tank. In use, the exhaust valve of the intermediate tank adjacent to the vacuum material storage tank is first opened, then the coal slurry is stirred into coal slurry and is sucked into the vacuum material storage tank. Then, the exhaust valve and the material suction valve are closed, the material discharge valve is opened, the vacuum material storage tank is inflated through the jet pump (only the jet pump is used as a pipeline at this time), the coal slurry is pressed out of the vacuum material storage tank by using compressed air and is sent into the adjacent intermediate tank, then the material discharge valve of the vacuum material storage tank and the exhaust valve of the adjacent intermediate tank are closed, the material discharge valve, the pressurizing valve of the adjacent intermediate tank and the exhaust valve of the next intermediate tank are opened, the coal slurry is pressed out of the adjacent intermediate tank and is sent into the next intermediate tank, then the above steps are repeated until the coal slurry is sent into the last intermediate tank, then the vibrating screen and the centrifugal screw solid-liquid separator are started, the material discharge valve and the pressurizing valve of the last intermediate tank are opened, the coal slurry is pressed out of the last intermediate tank and is sent into the inlet of the vibrating screen.

[0011] In this way, the feeding distance of the vacuum material storage tank is greatly prolonged, and the device is suitable for coal mines in which the rubber belt conveyor is far away from the drainage ditch, the water sump in the mining area and the central water sump at the well bottom.

[0012] As optimization, the air-driven coal slurry agitator comprises an air-driven motor, a connecting pipe and a spiral stirring rod, the upper end of the connecting pipe is fixed on the air-driven motor, a gear box shell is connected to the lower end of the connecting pipe, the spiral stirring rod comprises a stirring shaft, the output shaft of the air-driven motor is arranged in the connecting pipe, the stirring shaft is horizontally arranged in the gear box shell, the output shaft of the air-driven motor is arranged in the connecting pipe, the lower end of the output shaft and the middle section of the stirring shaft are respectively provided with angle gears, the two angle gears are in meshing connection, the two ends of the stirring shaft are respectively exposed outside the gear box shell and are respectively provided with spiral stirring knives, the length of the stirring shaft is less than the width of the drainage ditch to be cleaned, and a transverse shaft is further arranged in the middle section of the connecting pipe, the two ends of the transverse shaft are respectively provided with rollers, and the distance between the two rollers is greater than the width of the drainage ditch to be cleaned.

[0013] Thus, the output shaft of the air-driven motor drives the spiral stirring knives on the stirring shaft through the angle gear set in meshing connection, the spiral stirring knives stir the slurry bottom deposit or agglomerate, and at the same time, strong water flow is generated to strengthen the stirring and flushing effect, when the water ditch is dredged, the two rollers are respectively pressed on the ground on the two sides of the water ditch, and during use, the spiral stirring knives are extended into the water ditch, and the spiral stirring knives are moved back and forth to stir and suck the slurry, thereby saving labor and being convenient.

[0014] As optimization, the suction valve of each vacuum storage tank is linked with the discharge valve thereof to be controlled to be opened and closed at the same time. Thus, the control is facilitated.

[0015] As optimization, the air-driven coal slurry agitator comprises an air-driven motor, a connecting pipe and a spiral stirring rod, the upper end of the connecting pipe is fixed on the air-driven motor, a gear box shell is connected to the lower end of the connecting pipe, the spiral stirring rod comprises a stirring shaft, the output shaft of the air-driven motor is arranged in the connecting pipe, the stirring shaft is horizontally arranged in the gear box shell, the output shaft of the air-driven motor is arranged in the connecting pipe, the lower end of the output shaft and the middle section of the stirring shaft are respectively provided with angle gears, the two angle gears are in meshing connection, the two ends of the stirring shaft are respectively exposed outside the gear box shell and are respectively provided with spiral stirring knives, the length of the stirring shaft is less than the width of the drainage ditch to be cleaned, and a transverse shaft is further arranged in the middle section of the connecting pipe, the two ends of the transverse shaft are respectively provided with rollers, and the distance between the two rollers is greater than the width of the drainage ditch to be cleaned.

[0016] Thus, the output shaft of the air-driven motor drives the spiral stirring knives on the stirring shaft through the angle gear set in meshing connection, the spiral stirring knives stir the slurry bottom deposit or agglomerate, and at the same time, strong water flow is generated to strengthen the stirring and flushing effect, when the water ditch is dredged, the two rollers are respectively pressed on the ground on the two sides of the water ditch, and during use, the spiral stirring knives are extended into the water ditch, and the spiral stirring knives are moved back and forth to stir and suck the slurry, thereby saving labor and being convenient.

[0017] As optimization, the air-driven coal slurry agitator comprises an air-driven motor, a connecting pipe and a spiral stirring rod, the upper end of the connecting pipe is fixed on the air-driven motor, a gear box shell is connected to the lower end of the connecting pipe, the spiral stirring rod comprises a stirring shaft, the output shaft of the air-driven motor is arranged in the connecting pipe, the stirring shaft is horizontally arranged in the gear box shell, the output shaft of the air-driven motor is arranged in the connecting pipe, the lower end of the output shaft and the middle section of the stirring shaft are respectively provided with angle gears, the two angle gears are in meshing connection, the two ends of the stirring shaft are respectively exposed outside the gear box shell and are respectively provided with spiral stirring knives, the length of the stirring shaft is less than the width of the drainage ditch to be cleaned, and a transverse shaft is further arranged in the middle section of the connecting pipe, the two ends of the transverse shaft are respectively provided with rollers, and the distance between the two rollers is greater than the width of the drainage ditch to be cleaned.

[0018] The underground high-efficiency long-distance dredging device is labor-saving and high-efficient, the use method is simple and easy to operate, and the device is particularly suitable for coal mines in which the distance between the belt conveyor and the drainage ditch, the water sump of a mining area and the central water sump of a well bottom is far. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described in conjunction with the accompanying drawings:

[0020] Figure 1 is a structural diagram of the wind-driven coal sludge agitator of the present application.

[0021] Figure 2 is a structural diagram of the present application.

[0022] In the figure: 1 is the wind-driven coal sludge agitator, 10 is the wind-driven motor, 11 is the suction pipe, 12 is the connecting pipe, 13 is the gear box shell, 14 is the stirring shaft, 15 is the spiral stirring knife, 16 is the output shaft, 17 is the steel wire skeleton hose, 18 is the installation base, 2 is the vacuum storage tank, 21 is the suction valve, 22 is the suction pipe, 23 is the air pipe, 24 is the discharge pipe, 25 is the discharge valve, 26 is the conveying pipe, 3 is the centrifugal screw solid-liquid separator, 31 is the driving motor, 4 is the jet pump, 41 is the air inlet valve, 42 is the exhaust valve, 5 is the vibrating screen, 51 is the vibrating motor, 52 is the discharge pump, 6 is the intermediate tank, 61 is the feed pipe, 62 is the pressurizing pipe, 63 is the pressurizing valve, 64 is the exhaust valve, 65 is the exhaust pipe, 8 is the cross shaft, and 9 is the roller. DETAILED DESCRIPTION

[0023] Embodiment I: as Figure 1 , 2As shown, the novel underground high-efficiency remote silt removal device includes a pneumatic coal slurry agitator 1, a vacuum storage tank 2 and a centrifugal spiral solid-liquid separator 3. The side wall or top of the vacuum storage tank 2 is provided with a suction pipe 22 with a suction valve 21 and a vent pipe 23, and a discharge pipe 24 is provided at the bottom thereof. The discharge pipe 24 is provided with a discharge valve 25. The vacuum storage tank 2 is equipped with a jet pump 4. The suction port of the jet pump 4 is connected to the vent pipe 23. The air inlet of the jet pump 4 is connected to the high-pressure air pipe (in the figure) through the air inlet valve 41. Not marked), the pneumatic coal slime agitator 1 is equipped with a slurry suction pipe 11, the suction pipe 22 is connected to the slurry suction pipe 11 through a steel skeleton hose 17, the outlet of the jet pump 4 is connected to the discharge pipe 24 downstream of the discharge valve 25 through an exhaust pipe with an exhaust valve 42, and also includes a vibrating screen 5, which is arranged between the vacuum storage tank 2 and the centrifugal spiral solid-liquid separator 3 and is equipped with a vibrating motor 51, and the inlet of the vibrating screen 5 is connected to the discharge pipe 25 of the vacuum storage tank 2 through a conveying pipe 26. An intermediate tank 6 is set up every 40-50 meters on the conveying pipe 26. A feed pipe 61 and a pressure pipe 62 are provided on the side wall or top of each intermediate tank 6. A discharge pipe 24 is provided at the bottom. A discharge valve 25 is provided on the discharge pipe 24. A pressure valve 63 is provided on the pressure pipe 62 and is communicated with a high-pressure gas pipe (not shown in the figure). An exhaust pipe 65 with an exhaust valve 64 is also provided on the pressure pipe 62 between the pressure valve 63 and the intermediate tank 6 or on the intermediate tank 6. The feed pipe 61 of each intermediate tank 6 is connected to its upstream conveying pipe 26. The delivery pipe 26 is connected, and the discharge pipe 24 of each intermediate tank 6 is connected to its downstream delivery pipe 26. The solid discharge port on the screen of the vibrating screen 5 is located above the matching belt conveyor 7. The liquid discharge under the screen of the vibrating screen 5 is sent to the inlet of the centrifugal spiral solid-liquid separator 3 through the discharge pump 52. The liquid phase outlet of the centrifugal spiral solid-liquid separator 3 is connected to the underground matching drainage ditch (not shown in the figure), and the solid phase outlet of the centrifugal spiral solid-liquid separator 3 is located above the upper belt of the matching belt conveyor 7.

[0024] like Figure 1 As shown, the pneumatic coal slime agitator 1 includes a pneumatic motor 10, a connecting pipe 12 and a spiral stirring rod. The upper end of the connecting pipe 12 is fixed to the pneumatic motor 10, and the lower end of the connecting pipe 12 is connected to a gear box housing 13. The spiral stirring rod includes a stirring shaft 14. The output shaft 16 of the pneumatic motor 10 is passed through the connecting pipe 12. The stirring shaft 14 is horizontally passed through the gear box housing 13. The output shaft 16 of the pneumatic motor 10 is passed through the connecting pipe 12. The lower end of the output shaft 16 and the middle section of the stirring shaft 14 are respectively provided with angular gears (not shown in the figure). The two angular gears are engaged with each other. The two ends of the stirring shaft 14 are respectively exposed outside the gear box housing and are respectively provided with spiral stirring blades 15. The length of the stirring shaft is less than the width of the drainage ditch to be cleaned (not shown in the figure). The middle section of the connecting pipe 12 is also provided with a horizontal shaft 8. The two ends of the horizontal shaft 8 are respectively provided with rollers 9. The distance between the two rollers 9 is greater than the width of the drainage ditch to be cleaned.

[0025] The suction valve 21 of each vacuum storage tank 2 is synchronously linked and controlled with its discharge valve 24, and at the same time, one is always opened and the other is always closed.

[0026] It also includes a PLC controller, the vacuum storage tank 2 is provided with a liquid level sensor, the suction valve 21, the discharge valve 25 of each vacuum storage tank 2 and the inlet valve 41 of its jet pump 4, the pressurizing valve 63, the discharge valve 25 and the exhaust valve 64 of each intermediate tank 6 are all solenoid valves, the liquid level sensor is connected with the signal input end of the PLC controller (not shown in the figure), the driving motor 31 of the centrifugal screw solid-liquid separator 3, the vibration motor 51 of the vibrating screen 5, the discharge pump 52 and all solenoid valves (the suction valve 21, the discharge valve 25 of each vacuum storage tank 2 and the inlet valve 41 of its jet pump 4, the pressurizing valve 63, the discharge valve 25 and the exhaust valve 64 of each intermediate tank) are connected with the signal output end of the PLC controller and controlled by it. The vacuum storage tank 2 has two in total, and the two vacuum storage tanks 2 are connected in parallel.

Claims

1. A novel underground high-efficiency remote silt removal device, comprising a pneumatic coal slime agitator, a vacuum storage tank, and a centrifugal spiral solid-liquid separator, wherein a suction pipe with a suction valve and a vent pipe are provided on the side wall or top of the vacuum storage tank, a discharge pipe is provided at the bottom, and a discharge valve is provided on the discharge pipe. The vacuum storage tank is equipped with a jet pump, the suction port of the jet pump is connected to the vent pipe, and the air inlet of the jet pump is connected to a high-pressure air pipe through an air inlet valve. The pneumatic coal slime agitator is equipped with a slurry suction pipe, the suction pipe is connected to the slurry suction pipe through a steel wire skeleton hose, and the outlet of the jet pump is connected to the discharge pipe downstream of the discharge valve through an exhaust pipe with an exhaust valve. The device is characterized in that: It also includes a vibrating screen, which is arranged between the vacuum storage tank and the centrifugal spiral solid-liquid separator and is equipped with a vibrating motor. The inlet of the vibrating screen is connected to the discharge pipe of the vacuum storage tank by a conveying pipe. An intermediate tank is arranged every 40-50 meters on the conveying pipe. The side wall or top of each intermediate tank is provided with a feed pipe and a pressure pipe, and the bottom is provided with a discharge pipe. The discharge pipe is provided with a discharge valve, and the pressure pipe is provided with a pressure valve, which is connected to the equipped high-pressure air pipe. The pressure pipe between the pressure valve and the intermediate tank or the intermediate tank is also provided with an exhaust pipe with an exhaust valve. The feed pipe of each intermediate tank is connected to its upstream conveying pipe, and the discharge pipe of each intermediate tank is connected to its downstream conveying pipe. The solid discharge port on the screen of the vibrating screen is located above the equipped belt conveyor, and the liquid discharge under the screen of the vibrating screen is sent to the inlet of the centrifugal spiral solid-liquid separator through a discharge pump. The solid phase outlet of the centrifugal spiral solid-liquid separator is located above the upper belt of the equipped belt conveyor.

2. The novel downhole high-efficiency remote dredging device according to claim 1 is characterized in that: The pneumatic coal slime agitator includes a pneumatic motor, a connecting pipe and a spiral stirring rod. The upper end of the connecting pipe is fixed to the pneumatic motor, and the lower end of the connecting pipe is connected to a gear box shell. The spiral stirring rod includes a stirring shaft. The output shaft of the pneumatic motor is passed through the connecting pipe. The stirring shaft is horizontally passed through the gear box shell. The output shaft of the pneumatic motor is passed through the connecting pipe. The lower end of the output shaft and the middle section of the stirring shaft are respectively provided with angular gears, and the two angular gears are engaged with each other. The two ends of the stirring shaft are respectively exposed outside the gear box shell and are respectively provided with spiral stirring blades. The length of the stirring shaft is less than the width of the drainage ditch to be cleaned. The middle section of the connecting pipe is also provided with a horizontal axis, and the two ends of the horizontal axis are respectively provided with rollers. The distance between the two rollers is greater than the width of the drainage ditch to be cleaned.

3. The novel downhole high-efficiency remote dredging device according to claim 1 is characterized in that: The suction valve of each vacuum storage tank is linked to its discharge valve and is controlled so that one opens and the other closes at the same time.

4. The novel downhole high-efficiency remote dredging device according to claim 1, 2 or 3 is characterized in that: It also includes a PLC controller. A liquid level sensor is provided on the vacuum storage tank. The suction valve, discharge valve and air inlet valve of each vacuum storage tank and its jet pump, the pressurizing valve, discharge valve and exhaust valve of each intermediate tank are all solenoid valves. The liquid level sensor is connected to the signal input end of the PLC controller. The driving motor of the centrifugal spiral solid-liquid separator, the vibration motor of the vibrating screen, the discharge pump and all solenoid valves are connected to the signal output end of the PLC controller and are controlled by it.

5. The novel downhole high-efficiency remote dredging device according to claim 1 is characterized in that: There are two vacuum storage tanks in total, which are connected in parallel.

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