Underground purification equipment for coal mine water

Abstract

The underground purification equipment comprises a tank body, a water inlet assembly is arranged on the tank body, a water storage tank body is arranged in the tank body, an ultraviolet lamp is arranged in the tank body, a filtering assembly is arranged below the water storage tank body, a power assembly is arranged in the tank body, and an adjusting assembly is arranged on the tank body. In the invention, the water inlet assembly automatically adjusts the water pressure through a hydraulic linkage mechanism: the opening of the water outlet is shrunk when the flow is small, and the water pressure is improved by utilizing a'shrinking runner 'principle; the opening is expanded during large flow, and overload is avoided. Meanwhile, the water inlet assembly adjusts the fan blade angle (the fan blade angle is reduced when the flow is small (the contact area is increased) and the angle is increased when the flow is large (the contact area is reduced) through linkage of the connecting rod, it is ensured that the impact force of water flow is stably converted into power, the rotating speed of the water storage tank is uniform, and the problems that small-flow power is insufficient and large-flow power is excessive are solved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of purification equipment, and in particular to underground coal mine water purification equipment. Background Art

[0002] Coal mine water is an important water resource generated during coal mining. Its water quality is complex and its flow rate fluctuates significantly: on the one hand, the water generally contains suspended particles such as coal dust and rock powder (particle size is mostly 1-100μm), often accompanied by acidic (pH 4-6) or alkaline (pH 8-10) components, and some also contain trace heavy metals (such as Fe 2 ⁺、Mn 2 ⁺) and mineral oil, which need to be purified for recycling; on the other hand, affected by mining processes and water inflow conditions, mine water flow often fluctuates violently, posing a challenge to the stable operation of purification equipment.

[0003] The existing mine water purification equipment has the following prominent problems in practical application: Insufficient power stability: Some equipment uses "water pressure to convert kinetic energy" to drive the water tank to rotate (which is more energy-efficient than motor drive). However, insufficient power is prone to occur when the flow fluctuates. Insufficient water pressure at low flow rates causes the water tank to rotate too slowly or intermittently, affecting the uniformity of ultraviolet sterilization (there are blind spots in the irradiation). Excessive power at high flow rates may cause equipment overload.

[0004] Filter components are prone to clogging and require cumbersome maintenance: After long-term use, impurities such as coal dust and rock powder are easily accumulated on the surface of filter structures (such as filter screens and membranes), requiring frequent manual cleaning, otherwise the filtration efficiency will be reduced; and existing equipment lacks an automatic impurity removal mechanism. Impurities adhere to the filter surface and are difficult to fall off, further exacerbating the clogging problem.

[0005] Poor component coordination: Systems such as water inlet regulation, power transmission, and filtration and purification mostly operate independently and cannot dynamically adapt to changes in water quality and flow (e.g., mismatch between water inlet flow and power output, or disconnection between filtration load and impurity removal mechanism), resulting in low overall purification efficiency and high energy consumption. Summary of the Invention

[0006] The technical solution of the present invention solves the technical problems raised in the background technology that when the water flow rate is small, the water pressure generating power stability is insufficient; the filter component is easily clogged and the maintenance is relatively cumbersome.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: A coal mine water underground purification device includes a tank body, a water inlet component for monitoring the size of the water source entering the tank body is provided on the tank body, and the water inlet component automatically adjusts the water pressure of the water source entering the tank body, a water tank body is provided inside the tank body, an ultraviolet lamp for disinfecting the water source inside the water tank body is provided inside the tank body, a filter component for filtering and purifying the water source is provided below the water tank body, a power component for driving the water tank body to rotate is provided inside the tank body, and the power component is used to assist in throwing off impurities above the filter component, and an adjustment component for adjusting the angle of the fan blades in the power component is provided on the tank body.

[0008] Preferably, the water inlet assembly includes a water inlet, which is opened in a circular array above the tank body, and the inner cavity of the water inlet is provided with a first plug rod, a sleeve rod is slidably connected to the first plug rod, a first spring is sleeved on the first plug rod, a load-bearing rod is provided on the sleeve rod, a piston is provided at one end of the sleeve rod away from the first plug rod, and a hydraulic oil cavity is provided in the water inlet.

[0009] Preferably, the water inlet assembly also wraps a liquid storage tube, and the liquid storage tube is arranged at the top of the inside of the tank body. The liquid storage tube and the inner cavity of the water inlet are connected to each other through a connecting tube. A second plug rod is inserted into the inner cavity of one end of the liquid storage tube away from the connecting tube, and a piston is also provided at one end of the liquid storage tube when the second plug rod is inserted. A second spring is sleeved on the second plug rod.

[0010] Preferably, a water outlet is provided at the top end of the tank body, and the second insertion rod is connected to the water outlet via a linkage bracket.

[0011] Preferably, the adjustment assembly includes a screw, which is rotatably connected to the tank body. A transmission collar is threadedly sleeved on the screw, and the transmission collar is connected to the sleeve by a connecting rod. A rotating rod is provided at the lower end of the screw.

[0012] Preferably, the power assembly includes a main rotating shaft, which is rotatably connected to the inside of the tank body, and a support rod is rotatably connected to the inner cavity of the main rotating shaft. A bevel gear set is provided between the support rod and the rotating rod, and a fan blade is fixedly installed at one end of the support rod away from the bevel gear set, and an auxiliary rotating shaft is fixedly installed at the lower end of the main rotating shaft.

[0013] Preferably, a water tank body is provided on the main rotating shaft, a conical water tank base is provided at the bottom of the water tank body, and ultraviolet lamps are provided in a circular array inside the tank body.

[0014] Preferably, the filter assembly includes a first supporting sleeve, a second supporting sleeve and a limiting sleeve, the first supporting sleeve, the second supporting sleeve and the limiting sleeve are sleeved on the outside of the auxiliary rotating shaft, the second supporting sleeve is rotatably connected to the inside of the tank body, the limiting sleeve is fixedly mounted on the second supporting sleeve, the first supporting sleeve is slidably connected to the limiting sleeve, an insert is provided on the first supporting sleeve, slots are circumferentially arranged on the auxiliary rotating shaft, the insert is inserted into the slot, and a third spring is sleeved on the first supporting sleeve.

[0015] Preferably, the filter assembly also includes a limiting block and a support shell, the support shell is rotatably connected to the auxiliary rotating shaft, the limiting block is fixedly mounted on the first support sleeve, a support ring is provided on the limiting block, movable brackets are provided in a circumferential array on the support ring, support brackets are provided in a circumferential array on the support shell, the movable bracket is connected to the support bracket at one end away from the support ring, and a filter membrane is provided on the support bracket.

[0016] Preferably, a waste trough is provided on the inner wall of the tank body, a lifting door is provided on the tank body, and the lifting door is provided on the outside of the waste trough.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The water inlet assembly automatically adjusts water pressure through a hydraulic linkage mechanism: At low flow rates, the outlet opening is narrowed, increasing water pressure by leveraging the "constricted flow path" principle; at high flow rates, the opening is widened to prevent overload. Simultaneously, the water inlet assembly adjusts the fan blade angle via a connecting rod—decreasing the angle (increasing contact area) at low flow rates and increasing the angle (decreasing contact area) at high flow rates. This ensures that the impact of the water flow is steadily converted into power, maintaining a uniform rotational speed in the water tank and resolving the issue of "insufficient power at low flow rates and excessive power at high flow rates." The filter assembly automatically deforms as impurities accumulate: initially disc-shaped, it becomes conical due to gravity as impurities accumulate, with the angle of the slope increasing as the weight of the impurities increases. When the impurities reach a certain threshold, the filter assembly docks with the slot of the auxiliary shaft via an insert. The centrifugal force of the power assembly then pulls the impurities down the cone and into the waste trough, achieving automatic impurity removal. This design significantly reduces manual cleaning frequency and prevents filter membrane failure due to clogging.

[0018] The water tank body rotates synchronously with the main shaft, and cooperates with the ultraviolet lamps in the circular array on the inner wall of the tank to ensure that the water is irradiated in all directions during the rotation, completely eliminating sterilization blind spots; at the same time, the base of the water tank adopts a conical design to ensure that the water flow is concentrated and falls to the filter component, avoiding secondary pollution caused by water residue.

[0019] The water inlet, regulating, power, and filtration components form a closed-loop linkage: changes in inlet flow trigger water pressure regulation, which in turn drives the fan blades to adjust their angle, which in turn drives the water tank to rotate and the filtration components to remove impurities, achieving a dynamic match of "flow-power-purification-removal." This entire process requires no external energy (relying on the water's own energy), is energy-efficient, and adaptable to the complex water quality and flow conditions in mines.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from a top view; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 This is a schematic cross-sectional view of the water inlet assembly of the present invention; Figure 5 for Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic cross-sectional view of the adjustment component in the present invention; Figure 7 This is a schematic diagram of the front structure of the filter assembly in the present invention; Figure 8 This is a bottom view of the structure of the filter assembly of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the filter assembly in the present invention; The following are marked in the figure: 1. Tank; 12. Waste chute; 13. Lift door 2. Water inlet assembly; 211. Water inlet; 212. First plug rod; 213. First spring; 214. Sleeve rod; 215. Load-bearing rod; 216. Connecting pipe; 217. Liquid storage pipe; 218. Second plug rod; 219. Second spring; 220. Linkage bracket; 221. Water outlet; 3. Adjustment assembly; 31. Connecting rod; 32. Transmission collar; 33. Screw; 34. Rotating rod; 35. Bevel gear set; 4. Power assembly; 41. Main shaft; 42. Fan blades; 43. Support rod; 44. Auxiliary shaft; 45. Slot; 5. Water tank body; 51. Water tank base; 52. Ultraviolet lamp; 6. Filter assembly; 611. Filter membrane; 612. First support housing; 613. Limiting block; 614. Support ring; 615. Movable bracket; 616. Support bracket; 617. Support shell; 618. Third spring; 619. Second support housing; 620. Limiting housing; 621. Insert block. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0023] Please refer to the attached Figures 1-9 A coal mine water underground purification equipment includes a tank body 1, a water inlet component 2 for monitoring the size of the water source entering the tank body 1 is provided on the tank body 1, and the water inlet component 2 automatically adjusts the water pressure of the water source entering the tank body 1, a water tank body 5 is provided inside the tank body 1, an ultraviolet lamp 52 for disinfecting the water source inside the water tank body 5 is provided inside the tank body 1, a filter component 6 for filtering and purifying the water source is provided below the water tank body 5, a power component 4 for driving the water tank body 5 to rotate is provided inside the tank body 1, and the power component 4 is used to assist in throwing off impurities above the filter component 6, and an adjustment component 3 for adjusting the angle of the fan blades 42 in the power component 4 is provided on the tank body 1.

[0024] The specific operation process of the present invention is as follows: the water source is transported into the interior of the tank body 1 through the water inlet component 2, the water inlet component 2 will monitor the flow rate of the water source, and adjust the size of the water pressure when passing through the water inlet component 2 into the interior of the tank body 1 according to the size of the water source flow rate, and the water inlet component 2 will adjust the angle of the fan blade 42 according to the size of the water flow rate (the greater the water flow rate, the larger the angle of the fan blade 42, and the smaller the contact area with the water source; the smaller the water flow rate, the smaller the angle of the fan blade 42, and the larger the contact area with the water source). The water source enters the interior of the tank body 1, and the water source is pressurized by the water inlet component 2 and then impacts the fan blade 42. The fan blade 42 provides power to the power component 4, and the water source enters the interior of the water storage tank body 5 after passing through the fan blade 42, and the power component 4 drives the storage tank body 5 to rotate. The water tank body 5 rotates, and the ultraviolet lamp 52 arranged inside the tank body 1 irradiates and sterilizes the water source inside the water tank body 5, and the rotation of the water tank body 5 allows the water tank body 5 to be irradiated by the ultraviolet lamp 52 without dead angles. After passing through the water tank body 5, the water source is transported to the top of the filter component 6, and the filter component 6 filters the water source. As impurities accumulate on the top of the filter component 6, the filter component 6 is pressed down as a whole into a cone shape, and the angle of the inclined surface becomes larger and larger. When the filter component 6 is pressed down to a certain extent, the filter component 6 is docked with the power component 4, and the power component 4 drives the filter component 6 to rotate synchronously. The impurities on the filter component 6 are thrown off from the top of the filter component 6 under the coordinated rotation of the inclined surface.

[0025] Please refer to Figure 1-Figure 5 The water inlet assembly 2 includes a water inlet 211, which is arranged in a circular array above the tank body 1. A first plug rod 212 is provided in the inner cavity of the water inlet 211. A sleeve rod 214 is slidably connected to the first plug rod 212. A first spring 213 is sleeved on the first plug rod 212. A load-bearing rod 215 is provided on the sleeve rod 214. A piston is provided at one end of the sleeve rod 214 away from the first plug rod 212. A hydraulic oil cavity is provided in the water inlet 211. The water inlet assembly 2 also wraps a liquid storage tube 217. The liquid storage tube 217 is arranged at the top end of the tank body 1. The liquid storage tube 217 and the inner cavity of the water inlet 211 are connected to each other through the connecting tube 216. A second plug rod 218 is inserted into the inner cavity of the end of the liquid storage tube 217 away from the connecting tube 216. The second plug rod 218 is also provided with a piston at one end of the liquid storage tube 217. A second spring 219 is sleeved on the second plug rod 218. A water outlet 221 is provided at the top end of the tank body 1. The second plug rod 218 and the water outlet 221 are connected by a linkage bracket 220.

[0026] The water source enters from the water inlet 211, and the water source will impact the load-bearing rod 215 set in the water inlet 211. When the water source is large, the impact force of the water source will press down the load-bearing rod 215, and the load-bearing rod 215 will drive the sleeve rod 214 to descend. At this time, the first spring 213 is in a stretched state, and the piston at the lower end of the sleeve rod 214 will squeeze the hydraulic oil in the inner cavity of the water inlet 211 shell. The hydraulic oil is squeezed through the connecting pipe 216 and transported into the liquid storage pipe 217. At this time, the second plug rod 218 will be pushed outward by the hydraulic oil. At this time, the second spring 219 is also in a stretched state. The linkage bracket 220 is composed of two plates hinged to each other, and one of the two plates is connected to the water outlet 2 21 shell is hinged, the other plate is hinged to the second plug rod 218, the water outlet 221 shell is hinged to the inner wall of the tank body 1, and when the second plug rod 218 is pushed outward by the hydraulic oil, the water outlet 221 shell will be pulled outward through the linkage bracket 220, causing the water outlet 221 opening to become larger, thereby preventing the water outlet 221 from being too small when the water flow rate is large and affecting the water delivery. Conversely, when the water flow rate is small, the water outlet 221 will shrink, thereby increasing the water pressure of the small flow water source, and since pistons are provided on the first plug rod 212 and the second plug rod 218, when the first plug rod 212 and the second plug rod 218 are displaced and reset, they will slowly reset.

[0027] Please refer to Figure 6 The adjusting component 3 includes a screw 33, which is rotatably connected to the tank body 1, and a transmission collar 32 is threadedly sleeved on the screw 33. The transmission collar 32 and the sleeve 214 are connected by a connecting rod 31. A rotating rod 34 is provided at the lower end of the screw 33. The power component 4 includes a main rotating shaft 41, which is rotatably connected to the inside of the tank body 1. A support rod 43 is rotatably connected to the inner cavity of the main rotating shaft 41. A bevel gear set 35 is provided between the support rod 43 and the rotating rod 34. A fan blade 42 is fixedly installed at one end of the support rod 43 away from the bevel gear set 35, and an auxiliary rotating shaft 44 is fixedly installed at the lower end of the main rotating shaft 41.

[0028] The screw 33 is set to a large pitch screw 33 (similar to the rod of a bamboo dragonfly). When the water flow is large, the sleeve 214 descends and drives the transmission ring 32 to descend through the connecting rod 31. The transmission ring 32 is provided with a threaded hole that is compatible with the screw 33. The descent of the transmission ring 32 drives the screw 33 to reverse. The screw 33 and the rotating rod 34 are connected by a one-way bearing. The rotating rod 34 is connected to the main rotating shaft 41 for rotation. When the screw 33 reverses, the rotating rod 34 will reverse with the screw 33. At this time, the rotating rod 34 drives the support rod 43 to rotate through the bevel gear set 35. The rotation of the support rod 43 drives the fan blades 42 to rotate and adjust the angle. When the water flow rate is greater, the fan blades 42 rotate at a greater angle to reduce the contact area with the water source. This can prevent the water flow from being too large, resulting in the water source being stored above the fan blades 42 and unable to flow down. The smaller the water flow rate, the smaller the rotation angle of the fan blades 42, which increases the contact area with the water source. This can prevent the water flow from being too small, resulting in the fan blades 42 having a small contact area, resulting in the fan blades 42 transmitting and rotating intermittently. The water flow entering the tank body 1 will impact the fan blades 42. At this time, the fan blades 42 will drive the main rotating shaft 41 and the auxiliary rotating shaft 44 to rotate forward. At this time, since the rotating rod 34 is connected to the screw 33 with a one-way bearing, the rotating rod 34 will not drive the screw 33 to rotate.

[0029] Please refer to Figure 3 A water tank body 5 is provided on the main rotating shaft 41 , a conical water tank base 51 is provided at the bottom of the water tank body 5 , and ultraviolet lamps 52 are provided in a circular array inside the tank body 1 .

[0030] The ultraviolet lamp 52 is arranged in the groove of the inner wall of the tank body 1, and the water source enters the water tank body 5. The water tank base 51 is arranged to be conical, and the opening is opened in the middle part. In this way, when the water source flows out through the water tank base 51, it will be concentrated in the middle part and fall above the filter assembly 6. The main shaft 41 drives the water tank body 5 to rotate to ensure that the ultraviolet lamp 52 irradiates the water source inside the water tank body 5 without blind spots.

[0031] Please refer to Figure 7-Figure 9The filter assembly 6 includes a first support sleeve 612, a second support sleeve 619 and a limiting sleeve 620. The first support sleeve 612, the second support sleeve 619 and the limiting sleeve 620 are sleeved on the outside of the auxiliary shaft 44. The second support sleeve 619 is rotatably connected to the inside of the tank body 1. The limiting sleeve 620 is fixedly installed on the second support sleeve 619. The first support sleeve 612 is slidably connected to the limiting sleeve 620. An insert 621 is provided on the first support sleeve 612. A slot 45 is arranged circumferentially on the auxiliary shaft 44. The insert 621 is inserted into the slot 45. A third spring 618 is sleeved on the first support sleeve 612. The filter Component 6 also includes a limiting block 613 and a support shell 617. The support shell 617 is rotatably connected to the auxiliary rotating shaft 44. The limiting block 613 is fixedly mounted on the first support sleeve 612. A support ring 614 is provided on the limiting block 613. Movable brackets 615 are provided in a circular array on the support ring 614. Support brackets 616 are arranged in a circular array on the support shell 617. The movable bracket 615 is connected to the support bracket 616 at one end away from the support ring 614. A filter membrane 611 is provided on the support bracket 616. A waste trough 12 is provided on the inner wall of the tank body 1. A lifting door 13 is provided on the tank body 1, and the lifting door 13 is provided on the outside of the waste trough 12.

[0032] Water flows out of the water tank base 51 and falls onto the support shell 617, and then flows outward to the filter membrane 611 (the filter membrane 611 is set as a composite material layer, including a bottom layer (support layer): polyester (PET) non-woven fabric or nylon mesh (thickness 50-100μm); an intermediate layer (filter layer): PTFE The filter membrane 611 is filtered by a microfiltration membrane (pore size 1-5μm, thickness 10-30μm); surface (protective layer): ultra-thin polyvinylidene fluoride (PVDF) coating (thickness 5-10μm)). The impact force of the falling water flow is supported by the support shell 617 to prevent the impact force of the water flow from damaging the filter membrane 611. The initial state of the filter membrane 611 is similar to a disc. After filtering the water source, impurities in the water source remain on the filter membrane 611. The weight of the impurities begins to press down the filter membrane 611, and the support bracket 616 and the movable bracket 615 supporting the filter membrane 611 are pressed down and moved downward (wherein the support bracket 616 is rotatably connected to the support shell 617, the movable bracket 615 is rotatably connected to the support bracket 616, the movable bracket 615 is rotatably connected to the support ring 614, and the limiting block 613 is slidable with the first support shell 612 Dynamic connection,), as the impurities increase, the filter membrane 611 is pressed down into a cone shape, and the conical slope becomes larger and larger. At this time, the limiting block 613 is also pushed down and compresses the third spring 618, and the limiting block 613 pushes the first support sleeve 612 to move down, and the first support sleeve 612 moves down until the insert block 621 is inserted into the slot 45 (the slot 45 may be rotating, but the insert block 621 is always pressed down. When the slot 45 rotates and coincides with the insert block 621, the insert block 621 will be inserted into the slot 45). At this time, the auxiliary shaft 44 drives the filter assembly 6 as a whole to rotate through the insert block 621 slot 45, and the impurities on the filter membrane 611 are thrown into the waste trough 12 through the slope and rotation of the filter membrane 611. The impurities inside the waste trough 12 can be cleaned by opening the lifting door 13.

[0033] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An underground coal mine water purification device, comprising a tank body (1), characterized in that: The tank body (1) is provided with a water inlet assembly (2) for monitoring the size of the water source entering the tank body (1), and the water inlet assembly (2) automatically adjusts the water pressure of the water source entering the tank body (1). The tank body (1) is provided with a water tank body (5). The tank body (1) is provided with an ultraviolet lamp (52) for disinfecting the water source inside the water tank body (5). A filter assembly (6) for filtering and purifying the water source is provided below the water tank body (5). The tank body (1) is provided with a power assembly (4) for driving the water tank body (5) to rotate, and the power assembly (4) is used to assist in throwing off impurities above the filter assembly (6). The tank body (1) is provided with an adjustment assembly (3) for adjusting the angle of the fan blade (42) in the power assembly (4).

2. The underground coal mine water purification equipment according to claim 1, characterized in that: The water inlet assembly (2) comprises a water inlet (211), the water inlet (211) being arranged in a circular array above the tank body (1), a first plug rod (212) being provided in an inner cavity of the water inlet (211), a sleeve rod (214) being slidably connected to the first plug rod (212), a first spring (213) being sleeved on the first plug rod (212), a load-bearing rod (215) being provided on the sleeve rod (214), a piston being provided at one end of the sleeve rod (214) away from the first plug rod (212), and a hydraulic oil inner cavity being provided in the plug-in water inlet (211).

3. The underground coal mine water purification equipment according to claim 2, characterized in that: The water inlet assembly (2) further includes a liquid storage tube (217). The liquid storage tube (217) is arranged at the top end of the tank body (1). The liquid storage tube (217) and the inner cavity of the water inlet (211) are connected to each other via a connecting tube (216). A second plug rod (218) is inserted into the inner cavity of one end of the liquid storage tube (217) away from the connecting tube (216). The second plug rod (218) is also provided with a piston at one end of the liquid storage tube (217). A second spring (219) is sleeved on the second plug rod (218).

4. The underground coal mine water purification equipment according to claim 3, characterized in that: A water outlet (221) is provided at the top end of the tank body (1), and the second insertion rod (218) is connected to the water outlet (221) via a linkage bracket (220).

5. The underground coal mine water purification equipment according to claim 1, characterized in that: The adjusting assembly (3) comprises a screw (33) which is rotatably connected to the tank body (1). A transmission collar (32) is threadedly sleeved on the screw (33). The transmission collar (32) is connected to the sleeve rod (214) via a connecting rod (31). A rotating rod (34) is provided at the lower end of the screw (33).

6. The underground coal mine water purification equipment according to claim 5, characterized in that: The power assembly (4) includes a main rotating shaft (41), the main rotating shaft (41) is rotatably connected to the inside of the tank body (1), the inner cavity of the main rotating shaft (41) is rotatably connected to a support rod (43), a bevel gear set (35) is provided between the support rod (43) and the rotating rod (34), a fan blade (42) is fixedly mounted on one end of the support rod (43) away from the bevel gear set (35), and an auxiliary rotating shaft (44) is fixedly mounted on the lower end of the main rotating shaft (41).

7. The underground coal mine water purification equipment according to claim 6, characterized in that: A water tank body (5) is provided on the main rotating shaft (41), a conical water tank base (51) is provided at the bottom of the water tank body (5), and ultraviolet lamps (52) are provided in a circular array inside the tank body (1).

8. The underground coal mine water purification equipment according to claim 1, characterized in that: The filter assembly (6) includes a first supporting sleeve (612), a second supporting sleeve (619) and a limiting sleeve (620), wherein the first supporting sleeve (612), the second supporting sleeve (619) and the limiting sleeve (620) are sleeved on the outside of the auxiliary rotating shaft (44), the second supporting sleeve (619) is rotatably connected to the inside of the tank body (1), the limiting sleeve (620) is fixedly mounted on the second supporting sleeve (619), the first supporting sleeve (612) is slidably connected to the limiting sleeve (620), an insert (621) is provided on the first supporting sleeve (612), a slot (45) is arranged in a circumferential manner on the auxiliary rotating shaft (44), the insert (621) is inserted into the inside of the slot (45), and a third spring (618) is sleeved on the first supporting sleeve (612).

9. The underground coal mine water purification equipment according to claim 8, characterized in that: The filter assembly (6) further comprises a limiting block (613) and a supporting shell (617), wherein the supporting shell (617) is rotatably connected to the auxiliary rotating shaft (44), and the limiting block (613) is fixedly mounted on the first supporting shell (612). A supporting ring (614) is provided on the limiting block (613), and movable brackets (615) are provided in a circumferential array on the supporting ring (614). Support brackets (616) are provided in a circumferential array on the supporting shell (617), and one end of the movable bracket (615) away from the supporting ring (614) is connected to the supporting bracket (616), and a filter membrane (611) is provided on the supporting bracket (616).

10. The underground coal mine water purification equipment according to claim 1, characterized in that: A waste trough (12) is provided on the inner wall of the tank body (1), a lifting door (13) is provided on the tank body (1), and the lifting door (13) is arranged outside the waste trough (12).

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