An automatic control device for sealing and plugging of goaf areas in strip mining

Abstract

The present invention discloses an automatic control device for plugging and sealing filling slurry in strip mining goaf, which belongs to the technical field of mine filling and mining, and comprises: a bottom plate; a main board, the main board is located at the upper end of the bottom plate, wherein the first end of the main board is rotatably connected to the bottom plate through a cylindrical tube, and the second end of the main board is a free end; a first driving part, the fixed end of the first driving part is fixedly connected to the bottom plate, the driving end of the first driving part is fixedly connected to the main board, and the first driving part is used to fix and adjust the relative angle between the main board and the bottom plate. An automatic control device for plugging and sealing filling slurry in strip mining goaf provided by the present invention can prevent the filling slurry from leaking out of the goaf during grouting, and solve the problem of insufficient filling of paste. In the process of slurry filling, the plugging and sealing equipment has a simple structure, strong operability, good sealing effect and high reusability.

Description

Technical Field

[0001] The invention belongs to the technical field of mine filling and mining, and in particular relates to an automatic control device for plugging and sealing filling slurry in a strip mining goaf area. Background Art

[0002] my country has a huge amount of "three-down" compressed coal. In order to fully exploit these coal resources and extend the service life of mines, coal mines use strip paste filling mining to solve this major problem. It can not only free up the "three-down" compressed coal, realize efficient and safe coal recovery, but also slow down surface subsidence and deformation.

[0003] At present, the paste filling slurry plugging and sealing methods in goaf areas mostly use bricks to build sealing walls or use woven bags filled with crushed coal to build walls. Both of these operation methods have major disadvantages and hidden dangers. Building sealing walls and using woven bags to build walls are not only time-consuming and labor-intensive, but also cannot be reused. In addition, the crushed coal used in the walls may be abandoned in the goaf, resulting in a waste of resources. Summary of the invention

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] An automatic control device for sealing and plugging filling slurry in strip mining goaf, comprising:

[0006] Base plate;

[0007] A main board, the main board is located at the upper end of the bottom plate, wherein the first end of the main board is rotatably connected to the bottom plate through a cylindrical tube, and the second end of the main board is a free end;

[0008] A first driving unit, wherein a fixed end of the first driving unit is fixedly connected to the bottom plate, a driving end of the first driving unit is fixedly connected to the main board, and the first driving unit is used to fix and adjust a relative angle between the main board and the bottom plate.

[0009] Furthermore, a first vertical telescopic plate that can slide vertically relative to the main board is provided on one side of the main board away from the bottom board, and a second driving part is provided between the main board and the first vertical telescopic plate, and the second driving part is used to drive the first vertical telescopic plate to slide relative to the main board to change the relative vertical height between the first vertical telescopic plate and the main board.

[0010] Furthermore, it also includes a first telescopic component and a second telescopic component that can increase the width and height of the mainboard. The first telescopic component and the second telescopic component are respectively arranged on both sides of the mainboard to increase the width and height of both sides of the mainboard.

[0011] Further, the first telescopic assembly includes a first adjustment telescopic plate, a second vertical telescopic plate, a third driving part and a fourth driving part;

[0012] Wherein, the first adjustable telescopic plate is slidably mounted on the first side of the main board, and the third driving unit drives the first adjustable telescopic plate to extend or retract along the length direction of the main board;

[0013] The second vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the first adjustable telescopic plates in the height direction. The fourth driving unit is arranged corresponding to the second vertical telescopic plates to drive the second vertical telescopic plates to extend or retract along the height direction of the first adjustable telescopic plates.

[0014] Further, the second telescopic assembly includes a second adjustment telescopic plate, a third vertical telescopic plate, a fifth driving part and a sixth driving part;

[0015] The second adjustable telescopic plate is slidably mounted on the second side of the main board, and the fifth driving unit drives the second adjustable telescopic plate to extend or retract along the length direction of the main board;

[0016] The third vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the second adjustable telescopic plates in the height direction. The sixth driving unit is arranged corresponding to the third vertical telescopic plates to drive the third vertical telescopic plates to extend or retract along the height direction of the second adjustable telescopic plates.

[0017] Furthermore, the bottom plate has an active cavity at its lower end, a seventh driving unit is arranged in the active cavity, a roller is arranged at the driving end of the seventh driving unit, the roller is connected to an eighth driving unit, and the eighth driving unit is used to drive the roller to rotate.

[0018] Furthermore, the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, the fifth drive unit, the sixth drive unit and the seventh drive unit are all electric push rods; wherein the motor of the electric push rod is electrically connected to the battery, and an electric push rod switch is arranged between the electric push rod and the battery.

[0019] Furthermore, it also includes a PLC control box, which is installed in the active cavity of the base plate and is electrically connected to the power supply; a pressure sensor, a temperature sensor and a liquid level sensor are arranged on the main board, and the pressure sensor, the temperature sensor and the liquid level sensor are all electrically connected to the PLC control box; the electric push rod switch is electrically connected to the PLC control box.

[0020] Furthermore, a notch is provided on one side of the mainboard, and a magnet is provided in the notch; a tenon is provided on the other side of the mainboard, and a coil is provided inside the tenon, and the coil is electrically connected to a battery; the tenon cooperates with a notch of another strip mining goaf filling slurry plugging and sealing automatic control device, and the notch cooperates with a tenon of another strip mining goaf filling slurry plugging and sealing automatic control device;

[0021] The side of the magnet away from the mainboard is the N pole, and the magnetic field generated by the coil is the S pole; or the side of the magnet away from the mainboard is the S pole, and the magnetic field generated by the coil is the N pole.

[0022] Furthermore, mining ethylene propylene rubber is provided at the top edges of the main board, the first adjustable telescopic plate, the second adjustable telescopic plate, the second vertical telescopic plate, the third vertical telescopic plate, the first vertical telescopic plate and the bottom edge of the bottom plate.

[0023] Beneficial effects:

[0024] The invention provides an automatic control device for sealing and plugging filling slurry in strip mining goaf, which can prevent the filling slurry from leaking out of the goaf during grouting, and solve the problem of insufficient paste filling. During the slurry filling process, the plugging and sealing device has a simple structure, strong operability, good sealing effect and high reusability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of the overall contracted state of the present invention;

[0026] Figure 2 It is a front view of the overall unfolded state of the present invention;

[0027] Figure 3 It is a side view of the telescopic plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection structure between the main board and the bottom board of the present invention;

[0029] Figure 5 This is a structural diagram of buttons on the bottom plate surface of the present invention;

[0030] Figure 6 This is a diagram showing the internal structure of the bottom plate of the present invention;

[0031] Figure 7 It is a workflow diagram of the present invention in the managed state;

[0032] Among them, 1. Main board; 2. Bottom board; 3. First vertical telescopic plate; 4. First vertical adjustment electric push rod; 5. Left adjustment telescopic plate; 6. Left adjustment electric push rod; 7. Right adjustment telescopic plate; 8. Right adjustment electric push rod; 9. Second vertical adjustment telescopic plate; 10. Second vertical adjustment electric push rod; 11. Third vertical adjustment telescopic plate; 12. Third vertical adjustment electric push rod; 13. Fourth vertical adjustment telescopic plate; 14. Fourth vertical adjustment electric push rod; 15. Fifth vertical adjustment telescopic plate; 16. Fifth vertical adjustment electric push rod; 17. Magnet; 18. Coil; 19. Notch; 20. Tenon; 21. Sixth adjustment electric push rod; 22. Battery; 23. Activity cavity; 24. Roller electric push rod; 25. Roller; 26. Mining EPDM rubber; 27. Pressure sensor; 28. Temperature gauge; 29. ​​Pressure gauge; 30. Flow meter; 31. Maintenance cycle table; 32. Motor; 33. Coil current switch; 34. First vertical adjustment electric push rod switch; 35. Left adjustment electric push rod switch; 36. Right adjustment electric push rod switch; 37. Second vertical adjustment electric push rod switch; 38. Third vertical adjustment electric push rod switch; 39. Fourth vertical adjustment electric push rod switch; 40. Fifth vertical adjustment electric push rod switch; 41. Sixth adjustment electric push rod switch; 42. Electric push rod lifting switch; 43. Power supply; 44. PLC control box; 45. Gear; 46. Cylindrical tube; 47. Casing; 48. SG90 servo. DETAILED DESCRIPTION

[0033] Example 1

[0034] refer to Figure 1-7 , an automatic control device for sealing and plugging filling slurry in strip mining goaf, comprising:

[0035] Bottom plate 2;

[0036] Main board 1, main board 1 is located at the upper end of bottom board 2, wherein the first end of main board 1 is rotatably connected to bottom board 2 via cylindrical tube 46, and the second end of main board 1 is a free end;

[0037] The first driving unit has a fixed end fixedly connected to the bottom plate 2 , and a driving end fixedly connected to the main board 1 . The first driving unit is used to fix and adjust the relative angle between the main board 1 and the bottom plate 2 .

[0038] In this embodiment, a first vertical telescopic plate 3 that can slide vertically relative to the main board 1 is provided on one side of the main board 1 away from the bottom plate 2, and a second driving unit is provided between the main board 1 and the first vertical telescopic plate 3. The second driving unit is used to drive the first vertical telescopic plate 3 to slide relative to the main board 1 to change the relative vertical height between the first vertical telescopic plate 3 and the main board 1.

[0039] The strip mining goaf filling slurry plugging and sealing automatic control equipment provided in this embodiment also includes a first telescopic component and a second telescopic component that can increase the width and height of the main board 1. The first telescopic component and the second telescopic component are respectively arranged on both sides of the main board 1, and are used to increase the width and height of both sides of the main board 1.

[0040] In this embodiment, the first telescopic assembly includes a first adjustment telescopic plate, a second vertical telescopic plate, a third driving part and a fourth driving part;

[0041] The first adjusting and retracting plate is slidably mounted on the first side of the main board 1, and the third driving unit drives the first adjusting and retracting plate to extend or retract along the length direction of the main board 1;

[0042] The second vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the first adjustable telescopic plates in the height direction. The fourth driving part is arranged corresponding to the second vertical telescopic plates to drive the second vertical telescopic plates to extend or retract along the height direction of the first adjustable telescopic plates.

[0043] In this embodiment, the second telescopic assembly includes a second adjustment telescopic plate, a third vertical telescopic plate, a fifth driving part and a sixth driving part;

[0044] The second adjustment telescopic plate is slidably mounted on the second side of the main board 1, and the fifth driving unit drives the second adjustment telescopic plate to extend or retract along the length direction of the main board 1;

[0045] The third vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the second adjustable telescopic plates in the height direction. The sixth driving unit is arranged corresponding to the third vertical telescopic plates to drive the third vertical telescopic plates to extend or retract along the height direction of the second adjustable telescopic plates.

[0046] In this embodiment, the bottom end of the bottom plate 2 has an active cavity 23, a seventh driving unit is arranged in the active cavity 23, a roller 25 is arranged at the driving end of the seventh driving unit, the roller 25 is connected to the eighth driving unit, and the eighth driving unit is used to drive the roller 25 to rotate.

[0047] In this embodiment, the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, the fifth drive unit, the sixth drive unit and the seventh drive unit are all electric push rods; wherein the motor of the electric push rod is electrically connected to the battery 22, and an electric push rod switch is arranged between the electric push rod and the battery 22.

[0048] The strip mining goaf filling slurry plugging and sealing automated control equipment provided in this embodiment also includes a PLC control box 44, which is installed in the active cavity 23 of the base plate 2 and is electrically connected to the power supply 43; a pressure sensor 27, a temperature sensor and a liquid level sensor are provided on the main board 1, and the pressure sensor 27, the temperature sensor and the liquid level sensor are all electrically connected to the PLC control box 44; the electric push rod switch is electrically connected to the PLC control box 44.

[0049] In this embodiment, a notch 19 is provided on one side of the main board 1, and a magnet 17 is provided in the notch 19; a tenon 20 is provided on the other side of the main board 1, and a coil 18 is provided inside the tenon 20, and the coil 18 is electrically connected to the battery 22; the tenon 20 cooperates with the notch 19 of another strip mining goaf filling slurry plugging and sealing automatic control device, and the notch 19 cooperates with the tenon 20 of another strip mining goaf filling slurry plugging and sealing automatic control device;

[0050] The side of the magnet 17 away from the main board 1 is the N pole, and the magnetic field generated by the coil 18 is the S pole; or, the side of the magnet 17 away from the main board 1 is the S pole, and the magnetic field generated by the coil 18 is the N pole.

[0051] In this embodiment, mining EPDM rubber 26 is provided at the top edges of the main board 1 , the first adjustment telescopic plate, the second adjustment telescopic plate, the second vertical telescopic plate, the third vertical telescopic plate, the first vertical telescopic plate 3 and the bottom edge of the bottom plate 2 .

[0052] Example 2

[0053] In order to better demonstrate the structural setting of the automatic control equipment for plugging and sealing the filling slurry in the goaf of strip mining, this embodiment is further configured on the basis of the embodiment 1.

[0054] In this embodiment, the main board 1 is made of steel and coated with an anti-corrosion layer on the surface, and has the characteristics of high sealing, high hardness, high temperature resistance, and corrosion resistance.

[0055] The thickness of the main board 1 is 1m. Figure 2 and Figure 3 As shown, the interior of the main board 1 is divided into three parts: left, middle and right. The left part is the first vertical telescopic plate 3, which has a hollow structure inside and is equipped with a first vertical adjustment electric push rod 4; the middle part is divided into two layers, namely a middle left layer and a middle right layer, and the two layers are fixed together for movement. The interior of the middle left layer is a hollow structure, and is equipped with an adjustment electric push rod 6. The adjustment electric push rod 6 drives the middle left layer and the middle right layer to move together. The interior of the middle right layer is a hollow structure, and is equipped with a second vertical adjustment electric push rod 10 and a third vertical adjustment electric push rod 12.

[0056] In this embodiment, the right part is a notch 19, and a magnet 17 is arranged behind the notch 19. When installing, the N-level of the magnet 17 is facing the front to ensure that the magnetism generated by the notch is N-level.

[0057] like Figure 1 and Figure 2 As shown, the installation construction principle of all the telescopic plates and the adjusting electric push rods located on the left side of the main board 1 is the same as that of all the telescopic plates and the adjusting electric push rods located on the right side of the main board 1.

[0058] It should be noted that, in the present embodiment, a tenon 20 is installed on the right side, and an energized coil 18 is arranged inside the tenon 20. When power is turned on, the current direction is set to forward and backward. According to the right-hand rule, the magnetism of the tenon 20 is S grade; the first vertical adjustment electric push rod 4 is installed in the middle position of the main board 1, and the top of the piston rod of the first vertical adjustment electric push rod 4 is welded to the top of the first vertical telescopic plate 3, and the base is welded to the bottom of the main board 1. The tops of the piston rods of all other adjustment electric push rods are welded to the top of the corresponding adjustment telescopic plate, and the bases are welded to the corresponding black solid iron columns. It should be noted that the telescopic degree of all telescopic plates is driven by the movement of the piston rod of the adjustment electric push rod.

[0059] like Figure 4 As shown, the main board 1 and the bottom board 2 are connected by a cylindrical sleeve. A horizontal cylindrical tube 46 is welded to the bottom of the main board 1, and two sleeves 47 are welded to the bottom board 2. The cylindrical tube 46 is nested inside the two sleeves 47 to achieve the connection between the main board 1 and the bottom board 2. A sixth adjustment electric push rod 21 is fixed between the main board 1 and the bottom board 2, as shown in FIG. Figure 1 As shown, a groove is provided on the main board 1, and a slider connected to the piston rod of the adjusting electric push rod is embedded inside. The base of the sixth adjusting electric push rod 21 is fixed on the bottom plate 2, and the angle between the main board 1 and the bottom plate 2 is controlled by the piston rod driving the slider up and down.

[0060] like Figure 2 and Figure 5 As shown, the motors on the first vertical adjustment electric push rod 4, the left adjustment electric push rod 6, the right adjustment electric push rod 8, the second vertical adjustment electric push rod 10, the third vertical adjustment electric push rod 12, the fourth vertical adjustment electric push rod 14, the fifth vertical adjustment electric push rod 16, and the sixth adjustment electric push rod 21 are respectively connected to the first vertical adjustment electric push rod switch 34, the left adjustment electric push rod switch 35, the right adjustment electric push rod switch 36, the second vertical adjustment electric push rod switch 37, the third vertical adjustment electric push rod switch 38, the fourth vertical adjustment electric push rod switch 39, the fifth vertical adjustment electric push rod switch 40, and the sixth adjustment electric push rod switch 41, and the above-mentioned adjustment electric push rod switches are all connected to the battery 22; the energized coil 18 is connected to the coil current switch 33, and the coil current switch 33 is electrically connected to the battery 22.

[0061] In this embodiment, when two devices need to be spliced, the magnetism inside the recess 19 of one device is N level, and the magnetism inside the tenon 20 of the other device is S level. Based on the principle of opposites attract, a tight connection between the two devices can be achieved.

[0062] In this embodiment, the top ends of the first vertical telescopic plate 3, the left adjustable telescopic plate 5, the right adjustable telescopic plate 7, the second vertical adjustable telescopic plate 9, the third vertical adjustable telescopic plate 11, the fourth vertical adjustable telescopic plate 13, and the fifth vertical adjustable telescopic plate 15 and the bottom edge of the bottom plate 2 are provided with mining EPDM rubber edge strips 26 to increase the fit between the sealing device and the wall surface.

[0063] like Figure 2 and Figure 5 As shown, a GPD80G pressure sensor, a GWB85 temperature sensor and a GLW30 flow sensor are installed on the main board 1. The sensors are located on the rear side of the main board 1 and are connected to a temperature gauge 28, a pressure gauge 29 and a flow meter 30 installed on the surface of the base plate 2. The temperature, pressure and flow on the rear side of the sealing device can be monitored in real time. A curing cycle table 31 for recording the curing days of the slurry and manual, managed and return buttons are also installed on the surface of the base plate 2. All instrument panels on the control panel are connected to a power supply 43. Four retractable rollers 25 are installed under the base plate 2. The rollers 25 are connected to a roller electric push rod 24. The roller electric push rod 24 is connected to a power supply 43. The roller electric push rod 24 retracts to drive the rollers 25 to be stored in the active cavity 23. At this time, the mining EPDM rubber 26 at the bottom of the base plate 2 will be in close contact with the ground. Figure 6 As shown, the roller 25 is connected via a shaft, the shaft and the motor 32 are provided with gears 45 meshing with each other, and the motor 32 is connected to a power source 43 .

[0064] like Figure 5 , Figure 6 and Figure 7 As shown, the PLC control box 44 is installed inside the base plate 2 and connected to the power supply 43. The PLC control box includes an input end and an output end. The input end is connected to the pressure, flow and temperature sensors, and the output end is respectively connected to the SG60 servo 48 of the first vertical adjustment electric push rod switch 34, the second vertical adjustment electric push rod switch 37, and the fourth vertical adjustment electric push rod switch 39, so as to control the lifting and lowering of the first vertical adjustment electric push rod 4, the second vertical adjustment electric push rod 10, and the fourth vertical adjustment electric push rod 14.

[0065] When the present invention is used, according to the size of the cross section of the filling area, several devices are selected and moved to the working surface, the coil current switches 33 of all devices are pressed to turn on the coil current, and the devices are assembled one by one according to the principle of magnet opposites attracting each other. After the assembly is completed, the electric push rod lifting switches 42 of all devices are pressed to drive the roller 25 to rise, so that the bottom plate 2 is tightly fitted with the ground, and then the left adjustment electric push rod switch 35 of the first device on the far left is pressed to make the mining ethylene propylene rubber 26 on the left adjustment telescopic plate 5 tightly fit with the wall. Similarly, the right adjustment electric push rod switch 36 of the last device on the far right is pressed to make the mining ethylene propylene rubber 26 on the right adjustment telescopic plate 7 tightly fit with the wall. According to the terrain, the sixth adjustment electric push rod switch 41 of all devices is pressed to control the angle between the sixth adjustment electric push rod adjustment main board 1 and the bottom plate 2, so that the device is fully fitted with the wall and the ground.

[0066] When all the equipment is assembled and grouting begins, the staff presses the hosting button of all the equipment. When the slurry filling is close to 0.5m from the top of the main board 1, the PLC controller 44 receives the signal from the flow sensor and controls the SG60 servo 48 to start the first vertical adjustment electric push rod 4, the second vertical adjustment electric push rod 10, and the fourth vertical adjustment electric push rod 14 to drive the first vertical telescopic plate 3, the second vertical adjustment telescopic plate 9, and the fourth vertical adjustment telescopic plate 13 to rise slowly.

[0067] After that, every time the slurry filling rises by 0.5m, the PLC controller 44 will control the SG60 servo 48 and then control the first vertical telescopic plate 3, the second vertical adjustment telescopic plate 9, and the fourth vertical adjustment telescopic plate 13 to rise slowly, and continue the cycle until the grouting completely covers the top coal. The PLC controller 44 will receive the signal from the pressure sensor 27 in the mining EPDM rubber 26, and control the SG60 servo 48 to start the switch to stop the first vertical adjustment electric push rod 4, the second vertical adjustment electric push rod 10, and the fourth vertical adjustment electric push rod 14 from working.

[0068] After that, when the maintenance period 31 reaches the expected number of days, that is, the paste reaches the predetermined compressive strength, the equipment can be removed for the next filling slurry plugging and sealing work surface. The equipment indirectly and effectively controls the sinking of the overlying rock strata and the surface movement, protects the surface buildings from or less affected by underground mining, and at the same time liberates valuable compressed coal resources and extends the service life of the mine.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic control device for sealing and plugging filling slurry in strip mining goaf, characterized in that: include: Base plate; A main board, the main board is located at the upper end of the bottom plate, wherein the first end of the main board is rotatably connected to the bottom plate through a cylindrical tube, and the second end of the main board is a free end; a first driving part, wherein a fixed end of the first driving part is fixedly connected to the bottom plate, a driving end of the first driving part is fixedly connected to the main board, and the first driving part is used to fix and adjust a relative angle between the main board and the bottom plate; A first vertical telescopic plate that can slide vertically relative to the main board is disposed on one side of the main board away from the bottom board, and a second driving part is disposed between the main board and the first vertical telescopic plate, and the second driving part is used to drive the first vertical telescopic plate to slide relative to the main board, so as to change the relative vertical height between the first vertical telescopic plate and the main board; It also includes a first telescopic component and a second telescopic component that can increase the width and height of the mainboard, the first telescopic component and the second telescopic component are respectively arranged on both sides of the mainboard, and are used to increase the width and height of both sides of the mainboard; It also includes a PLC control box, which is installed in the active cavity of the bottom plate and is electrically connected to the power supply; the main board is provided with a pressure sensor, a temperature sensor and a liquid level sensor, and the pressure sensor, the temperature sensor and the liquid level sensor are all electrically connected to the PLC control box; A notch is provided on one side of the main board, and a magnet is provided in the notch; a tenon is provided on the other side of the main board, and a coil is provided inside the tenon, and the coil is electrically connected to a battery; the tenon cooperates with a notch of another strip mining goaf filling slurry plugging and sealing automatic control device, and the inside of the notch cooperates with a tenon of another strip mining goaf filling slurry plugging and sealing automatic control device; The side of the magnet away from the mainboard is the N pole, and the magnetic field generated by the coil is the S pole; or the side of the magnet away from the mainboard is the S pole, and the magnetic field generated by the coil is the N pole; The first telescopic assembly includes a first adjustment telescopic plate, a second vertical telescopic plate, a third driving part and a fourth driving part; Wherein, the first adjustable telescopic plate is slidably mounted on the first side of the main board, and the third driving unit drives the first adjustable telescopic plate to extend or retract along the length direction of the main board; The second vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the first adjustable telescopic plates in the height direction. The fourth driving unit is arranged corresponding to the second vertical telescopic plates to drive the second vertical telescopic plates to extend or retract along the height direction of the first adjustable telescopic plates.

2. The strip mining goaf filling slurry plugging and sealing automatic control equipment according to claim 1 is characterized in that: The second telescopic assembly includes a second adjustment telescopic plate, a third vertical telescopic plate, a fifth driving part and a sixth driving part; The second adjustable telescopic plate is slidably mounted on the second side of the main board, and the fifth driving unit drives the second adjustable telescopic plate to extend or retract along the length direction of the main board; The third vertical telescopic plates are divided into two groups, which are slidably mounted on the upper and lower sides of the second adjustable telescopic plates in the height direction. The sixth driving unit is arranged corresponding to the third vertical telescopic plates to drive the third vertical telescopic plates to extend or retract along the height direction of the second adjustable telescopic plates.

3. The strip mining goaf filling slurry plugging and sealing automatic control equipment according to claim 2 is characterized in that: The bottom end of the bottom plate has an active cavity, a seventh driving part is arranged in the active cavity, a roller is arranged at the driving end of the seventh driving part, the roller is connected to the eighth driving part, and the eighth driving part is used to drive the roller to rotate.

4. The strip mining goaf filling slurry plugging and sealing automatic control equipment according to claim 3 is characterized in that: The first drive unit, the second drive unit, the third drive unit, the fourth drive unit, the fifth drive unit, the sixth drive unit and the seventh drive unit are all electric push rods; wherein the motor of the electric push rod is electrically connected to the battery, and an electric push rod switch is arranged between the electric push rod and the battery; the electric push rod switch is electrically connected to the PLC control box.

5. The strip mining goaf filling slurry plugging and sealing automatic control equipment according to claim 3 is characterized in that: Mining ethylene propylene rubber is provided at the top edges of the main board, the first adjusting telescopic plate, the second adjusting telescopic plate, the second vertical telescopic plate, the third vertical telescopic plate, the first vertical telescopic plate and the bottom edge of the bottom plate.

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