Mine underground in-situ water quality detection device

Abstract

The utility model discloses a mine underground in-situ water quality detection device which comprises a PLC (Programmable Logic Controller), a multi-parameter water quality detector body and a rectangular pyramid-shaped water receiving hopper with a large upper part and a small lower part, the top of the water receiving hopper is open, four corners of the upper end opening of the water receiving hopper are respectively provided with a universal self-adjusting magnetic adsorber, and the upper part in the water receiving hopper is provided with a bracket; a water quality detection probe is arranged on the support and connected with the multi-parameter water quality detector body through a data line, a water discharging pipe is arranged at the bottom of the water receiving hopper, an anti-explosion electromagnetic valve is arranged on the water discharging pipe, and the PLC is connected with the anti-explosion electromagnetic valve through a signal output line. The in-situ water quality detection device is reasonable in design, convenient to mount and dismount, safe and reliable, does not need to specially drill holes for water taking, directly collects leakage water of a roadway roof, performs water quality detection on site, achieves the purpose of in-situ water quality detection, and is single and accurate in detection result.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine water detection, and in particular relates to an in-situ water quality detection device underground in a mine. Background Art

[0002] At present, the detection of underground water quality in coal mines usually uses a multi-parameter water quality detector to test the water stored in the underground water tank, testing parameters such as pH value, turbidity, dissolved oxygen, conductivity, total suspended solids, hardness, heavy metals, bacteria and microorganisms in the water. Since the sources of the mine water stored in the water tank include groundwater in the coal seam and the gaps in the surrounding rock, surface water sources, old empty water and infiltration of atmospheric precipitation, among which groundwater is the main source, the test of the underground in-situ water cannot be carried out by testing the water in the water tank. Water seepage or leakage often occurs in the tunnel roof. If a device is set up in the tunnel to receive the leakage of the tunnel roof and the water quality is monitored in real time, the detection of underground in-situ water can be achieved. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides an in-situ water quality detection device for a mine, which is drilling-free and directly uses magnetic adsorption to the tunnel roof to perform in-situ detection of the water quality of leaking water.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an in-situ water quality detection device for underground mines, including a PLC controller, a multi-parameter water quality detector body and a water receiving hopper with a larger upper part and a smaller lower part in the shape of a quadrangular pyramid. The top of the water receiving hopper is open, and a universal self-adjusting magnetic adsorber is respectively provided at the four corners of the upper port of the water receiving hopper. A bracket is provided on the upper part of the water receiving hopper, and a water quality detection probe is provided on the bracket. The water quality detection probe is connected to the multi-parameter water quality detector body through a data cable. A drain pipe is provided at the bottom of the water receiving hopper, and an explosion-proof solenoid valve is provided on the drain pipe. The PLC controller is connected to the explosion-proof solenoid valve through a signal output line.

[0005] A first liquid level gauge is provided in the middle of the inner wall of the water receiving hopper, and a second liquid level gauge is provided on the inner wall of the water receiving hopper and is located above the first liquid level gauge. The PLC controller is connected to the first liquid level gauge and the second liquid level gauge respectively through signal output lines.

[0006] The lower port of the drain pipe is connected with a drain hose.

[0007] It also includes an explosion-proof box with a hanging ring on the top. The PLC controller and the multi-parameter water quality detector body are both arranged in the explosion-proof box. The explosion-proof box also has a rechargeable battery for powering the PLC controller and the multi-parameter water quality detector body.

[0008] The bracket is a cross, and the outer ends of the cross are fixedly connected to the four sides of the inner wall of the water receiving bucket. A socket that is transparent up and down is provided in the center of the cross. The water quality detection probe passes through the socket vertically. A limit seat larger than the socket is provided at the upper end of the water quality detection probe, and the bottom surface of the limit seat is in contact with the cross.

[0009] The universal self-adjusting magnetic adsorber includes a fixing seat, a screw, a mounting seat and a magnet plate. The fixing seat is fixedly connected to the corner of the upper port of the water receiving bucket. The fixing seat is provided with a threaded hole that is transparent from top to bottom. The lower part of the screw is extended into and threadedly connected to the threaded hole. The screw is threadedly connected with a locking nut that is crimped to the upper end face of the fixing seat. The bottom of the mounting seat is connected to the upper end of the screw through a ball hinge. A mounting groove with a top opening is provided in the mounting seat. The magnet plate is assembled in the mounting groove. The side of the mounting seat is provided with a countersunk screw that is threadedly connected to the side of the magnet plate.

[0010] The ball hinge includes a fixed block, a ball head and a cover plate. The upper end of the fixed block is fixedly connected to the bottom surface of the mounting seat. A semicircular groove is provided on the bottom surface of the fixed seat. The lower end of the ball head is fixedly connected to the upper end of the screw. The upper part of the ball head is rotatably connected in the semicircular groove. A spherical hole with a larger upper part and a smaller lower part is provided on the cover plate. The spherical hole of the cover plate is sleeved on the lower part of the ball head. The cover plate is fixedly connected to the bottom surface of the fixed seat by connecting screws. The inner walls of the semicircular groove and the spherical hole are frictionally connected to the outer circle of the ball head.

[0011] By adopting the above technical solution, compared with the existing technology, the present invention has the following beneficial effects:

[0012] (1) A universal self-adjusting magnetic absorber is used to connect with the tunnel roof and magnetically absorb and fix the water bucket to the tunnel roof. The magnetic attraction between the four magnet plates and the wire mesh, anchor rods and / or trays inside the tunnel roof is much greater than the weight of the water bucket filled with water. This is not only convenient to operate, easy to disassemble and assemble, safe and reliable, but also adsorbed on the tunnel roof without affecting the normal passage of the tunnel.

[0013] (2) The first level gauge is used to monitor the water level inside the hopper. When the water level rises to the first level gauge, the PLC controller commands the explosion-proof solenoid valve to open and the water in the hopper is drained. The second level gauge is a backup. When the first level gauge fails, the water level will continue to rise. When the water level rises to the position monitored by the second level gauge, a signal is sent to the PLC controller, which commands the explosion-proof solenoid valve to open and the water in the hopper is drained. This prevents the water level from rising to the point where the entire water quality detection probe is completely submerged, which may cause water intrusion and damage.

[0014] (3) The explosion-proof box integrates the rechargeable battery, PLC controller and multi-parameter water quality detector into one unit, which is convenient for taking and carrying. It is also hung on the cement nails nailed on the side of the tunnel through the hanging ring. The water quality detection process does not affect the normal operation of the mine.

[0015] (4) The bracket adopts a cross shape with a socket in the center to facilitate the removal and placement of the water quality detection probe, and the cross also serves to increase the strength of the water receiving bucket.

[0016] (5) The lower part of the screw of the universal self-adjusting magnetic absorber is threadedly connected to the fixed seat, which is fixed to the water receiving bucket, making it easy to remove and install the screw, and the distance between the ball head and the fixed seat can be adjusted. The rotational coordination of the ball head and the semicircular groove and the limit of the cover plate can achieve surface contact between the mounting seat and the magnet block and the tunnel roof, making it easy to remove and install the ball head and the fixed block. The fixed block is fixedly connected to the mounting seat, and the magnet block is set in the mounting seat and connected to it as a whole by countersunk screws. This ensures the reliability of the connection between the magnet block and the mounting seat and facilitates disassembly.

[0017] To sum up, the utility model has a reasonable design, is easy to install and disassemble, is safe and reliable, does not require special drilling for water, directly collects leaking water from the tunnel roof, and conducts water quality testing on site, thus achieving the purpose of in-situ water quality testing, and the test results are single and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model during water quality testing operations;

[0019] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the middle water hopper;

[0020] Figure 3 It is a three-dimensional structural diagram of the water receiving bucket;

[0021] Figure 4 This is an enlarged view of the universal self-adjusting magnetic adsorber. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0023] Figure 1-Figure 4 As shown, the utility model of the in-situ water quality detection device for underground mines includes a PLC controller, a multi-parameter water quality detector body and a water receiving hopper 1 which is larger at the top and smaller at the bottom and is in the shape of a quadrangular pyramid. The top of the water receiving hopper 1 is open, and a universal self-adjusting magnetic adsorber 2 is respectively provided at the four corners of the upper port of the water receiving hopper 1. A bracket 3 is provided on the upper inner part of the water receiving hopper 1, and a water quality detection probe 4 is provided on the bracket 3. The water quality detection probe 4 is connected to the multi-parameter water quality detector body through a data cable. A drain pipe 5 is provided at the bottom of the water receiving hopper 1, and an explosion-proof solenoid valve 6 is provided on the drain pipe 5. The PLC controller is connected to the explosion-proof solenoid valve 6 through a signal output line.

[0024] A first liquid level gauge 7 is provided in the middle of the inner wall of the water receiving hopper 1, and a second liquid level gauge 8 is provided on the inner wall of the water receiving hopper 1 and is located above the first liquid level gauge 7. The PLC controller is connected to the first liquid level gauge 7 and the second liquid level gauge 8 respectively through signal output lines.

[0025] The lower end of the drain pipe 5 is connected with a drain hose 9 .

[0026] The utility model also includes an explosion-proof box 10, a hanging ring is provided on the top of the explosion-proof box 10, a PLC controller and a multi-parameter water quality detector body are both arranged in the explosion-proof box 10, and a rechargeable battery is also provided in the explosion-proof box 10 for supplying power to the PLC controller and the multi-parameter water quality detector body.

[0027] The bracket 3 is a cross, the outer ends of the cross are fixedly connected to the four sides of the inner wall of the water receiving bucket 1, and a socket that is transparent up and down is provided in the center of the cross. The water quality detection probe 4 passes through the socket vertically. The upper end of the water quality detection probe 4 is provided with a limit seat 11 that is larger than the socket, and the bottom surface of the limit seat 11 is in contact with the cross.

[0028] The universal self-adjusting magnetic adsorber 2 includes a fixing base 12, a screw 13, a mounting base 14 and a magnet plate 15. The fixing base 12 is fixedly connected to the corner of the upper port of the water receiving bucket 1. A threaded hole that is transparent from top to bottom is provided on the fixing base 12. The lower part of the screw 13 extends into and is threadedly connected to the threaded hole. A locking nut 16 that is crimped to the upper end face of the fixing base 12 is threadedly connected on the screw 13. The bottom of the mounting base 14 is connected to the upper end of the screw 13 through a ball hinge. A mounting groove with a top opening is provided in the mounting base 14. The magnet plate 15 is assembled in the mounting groove. A countersunk screw 17 that is threadedly connected to the side of the magnet plate 15 is provided on the side of the mounting base 14.

[0029] The ball hinge includes a fixing block 18, a ball head 19 and a cover plate 20. The upper end of the fixing block 18 is fixedly connected to the bottom surface of the mounting seat 14. A semicircular groove is provided on the bottom surface of the fixing seat 12. The lower end of the ball head 19 is fixedly connected to the upper end of the screw 13. The upper part of the ball head 19 is rotatably connected in the semicircular groove. A spherical hole with a larger upper part and a smaller lower part is opened on the cover plate 20. The spherical hole of the cover plate 20 is sleeved on the lower part of the ball head 19. The cover plate 20 is fixedly connected to the bottom surface of the fixing seat 12 by a connecting screw 21. The inner walls of the semicircular groove and the spherical hole are frictionally connected to the outer circle of the ball head 19.

[0030] The tunnel roof 22 is provided with a number of anchor rods and fastened by a tray, and is paved with a wire mesh, which is fixedly connected to the anchor rods, and then mortar is sprayed on the outside of the wire mesh. The anchor rods, trays and wire mesh can all be adsorbed by magnets. Therefore, the utility model uses four magnet plates 15 to fit with the tunnel roof 22 and be magnetically adsorbed on the tunnel roof 22 to fix the water bucket 1.

[0031] The working process of the present utility model is as follows: select the position where there is water seepage or dripping on the tunnel roof 22, which is located just above the upper end of the water receiving bucket 1, and make the four magnet plates 15 contact with the tunnel roof 22. Since the tunnel roof 22 is arched, the setting of the ball hinge can make the magnet plate 15 and the fixing block 18 centered on the ball head 19 for universal rotation adjustment, so that the upper surface of the magnet plate 15 fits the surface of the tunnel roof 22, and the magnet is adsorbed on the tunnel roof 22, so that the water receiving bucket 1 is fixed. Then nail a cement nail at a suitable height on one side of the tunnel 23, hang the hanging ring at the upper end of the explosion-proof box 10 on the cement nail, and then extend the drainage hose 9 to the cement nail and tie it with thin wire or connect it to the cement nail through other temporary fixing methods, so that the lower end of the drainage pipe faces along the side wall 23 downward to the drainage ditch where the tunnel floor and the side wall 23 intersect. In-situ seepage water from the tunnel roof 22 drips into the water receiving hopper 1. As the water level rises, the lower end of the water quality detection probe 4 is submerged below the water surface, allowing the water quality to be tested. The water quality detection signal is transmitted to the multi-parameter water quality detector body for analysis and detection of parameters such as pH, turbidity, dissolved oxygen, conductivity, total suspended solids, hardness, heavy metals, bacteria, and microorganisms. The water level in the water receiving hopper 1 continues to rise. When the water level reaches the height of the first liquid level gauge 7, the first liquid level gauge 7 transmits the liquid level signal to the PLC controller, which sends an opening signal to the explosion-proof solenoid valve 6. After the explosion-proof solenoid valve 6 opens, the water in the water receiving hopper 1 is discharged through the drain pipe 5 and the drainage hose 9, thus completing the in-situ water quality testing of the underground well. The water receiving hopper 1 can then be removed from the tunnel roof 22, and the above-mentioned operation process can be used to test another dripping and seepage point in the tunnel roof 22 or other tunnel roofs 22.

[0032] It is important to note that the PLC controller, multi-parameter water quality detector body, water quality detection probe 4, first liquid level gauge 7, second liquid level gauge 8, and rechargeable battery in this utility model are all existing technologies and are commercially available. The automatic control involved is conventional technology and does not involve new computer programs.

[0033] The above embodiments illustrate the basic principles and features of the present invention. However, the above merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention to the embodiments described. Persons skilled in the art, inspired by this patent, may make various modifications and improvements without departing from the spirit of the present invention and the scope of protection of the claims, all of which fall within the scope of protection of the present invention. Therefore, the patent and scope of protection of this utility model shall be subject to the appended claims.

Claims

1. The in-situ water quality detection device for underground mines is characterized by: It includes a PLC controller, a multi-parameter water quality detector body and a water receiving hopper with a larger upper part and a smaller lower part in the shape of a four-sided pyramid. The top of the water receiving hopper is open, and a universal self-adjusting magnetic adsorber is provided at the four corners of the upper port of the water receiving hopper. A bracket is provided on the upper part of the water receiving hopper, and a water quality detection probe is provided on the bracket. The water quality detection probe is connected to the multi-parameter water quality detector body through a data cable. A drain pipe is provided at the bottom of the water receiving hopper, and an explosion-proof solenoid valve is provided on the drain pipe. The PLC controller is connected to the explosion-proof solenoid valve through a signal output line.

2. The in-situ water quality detection device for underground mines according to claim 1, characterized in that: A first liquid level gauge is provided in the middle of the inner wall of the water receiving hopper, and a second liquid level gauge is provided on the inner wall of the water receiving hopper and is located above the first liquid level gauge. The PLC controller is connected to the first liquid level gauge and the second liquid level gauge respectively through signal output lines.

3. The in-situ water quality detection device for underground mines according to claim 1, characterized in that: The lower port of the drain pipe is connected with a drain hose.

4. The in-situ water quality detection device for underground mines according to claim 1, characterized in that: It also includes an explosion-proof box with a hanging ring on the top. The PLC controller and the multi-parameter water quality detector body are both arranged in the explosion-proof box. The explosion-proof box also has a rechargeable battery for powering the PLC controller and the multi-parameter water quality detector body.

5. The in-situ water quality detection device for underground mines according to claim 1, characterized in that: The bracket is a cross, and the outer ends of the cross are fixedly connected to the four sides of the inner wall of the water receiving bucket. A socket that is transparent up and down is provided in the center of the cross. The water quality detection probe passes through the socket vertically. A limit seat larger than the socket is provided at the upper end of the water quality detection probe, and the bottom surface of the limit seat is in contact with the cross.

6. The in-situ water quality detection device for underground mines according to any one of claims 1 to 5, characterized in that: The universal self-adjusting magnetic adsorber includes a fixing seat, a screw, a mounting seat and a magnet plate. The fixing seat is fixedly connected to the corner of the upper port of the water receiving bucket. The fixing seat is provided with a threaded hole that is transparent from top to bottom. The lower part of the screw is extended into and threadedly connected to the threaded hole. The screw is threadedly connected with a locking nut that is crimped to the upper end face of the fixing seat. The bottom of the mounting seat is connected to the upper end of the screw through a ball hinge. A mounting groove with a top opening is provided in the mounting seat. The magnet plate is assembled in the mounting groove. The side of the mounting seat is provided with a countersunk screw that is threadedly connected to the side of the magnet plate.

7. The in-situ water quality detection device for underground mines according to claim 6, characterized in that: The ball hinge includes a fixed block, a ball head and a cover plate. The upper end of the fixed block is fixedly connected to the bottom surface of the mounting seat. A semicircular groove is provided on the bottom surface of the fixed seat. The lower end of the ball head is fixedly connected to the upper end of the screw. The upper part of the ball head is rotatably connected in the semicircular groove. A spherical hole with a larger upper part and a smaller lower part is provided on the cover plate. The spherical hole of the cover plate is sleeved on the lower part of the ball head. The cover plate is fixedly connected to the bottom surface of the fixed seat by connecting screws. The inner walls of the semicircular groove and the spherical hole are frictionally connected to the outer circle of the ball head.

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