Coal mine wastewater treatment device

Abstract

The invention belongs to the technical field of wastewater treatment equipment, and discloses a coal mine wastewater treatment device which comprises a wastewater treatment tank, a first motor bracket is fixedly mounted at the top of the wastewater treatment tank, a first motor is fixedly mounted on the inner side of the first motor bracket, and a bracket is fixedly mounted at the top of the wastewater treatment tank. Compared with a traditional device, the device has the advantages that a first motor is started to drive a plurality of components to move cooperatively, a discharging hole and a discharging groove filled with a coagulant and lime are accurately controlled to sequentially and correspondingly discharge materials, it is ensured that raw materials are fed accurately and evenly, on one hand, the lime is evenly mixed into wastewater, acidity can be efficiently neutralized, and the surrounding ecology is protected; on the other hand, a proper amount of coagulant is added at proper time, so that suspended solids and metal ions can be coagulated into a solid state, pollutants are effectively intercepted, untreated harmful substances are prevented from being discharged into the environment, and the wastewater treatment effect and the environmental protection efficiency are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a device for treating coal mine wastewater. Background Art

[0003] The current situation of coal mine wastewater treatment is worrying. This type of wastewater is highly acidic and is accompanied by a large amount of high suspended matter. The content of metal ions such as iron and manganese is quite high. However, the current treatment devices are limited in function and it is difficult to effectively deal with complex pollutants by relying solely on simple filtration methods. On the one hand, it is impossible to fully neutralize highly acidic wastewater, and continuous excessive discharge of acidic substances will cause serious corrosion to the surrounding water and soil environment; on the other hand, it is impossible to condense high suspended matter and iron and manganese particles into solids that are easy to separate, resulting in incomplete wastewater purification. There are still potential pollution risks in the future, so improvement and optimization are needed. Summary of the invention

[0004] The object of the present invention is to provide a device for treating coal mine wastewater to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for treating wastewater in coal mines, comprising a wastewater treatment tank, a first motor bracket is fixedly installed on the top of the wastewater treatment tank, a first motor is fixedly installed on the inner side of the first motor bracket, a bracket is fixedly installed on the top of the wastewater treatment tank, a first C-shaped bracket is fixedly installed on the top of the bracket, and the output shaft of the first motor passes through the first C-shaped bracket to the inner side, a rotating disk is fixedly connected to the end of the output shaft of the first motor, a convex block is fixedly installed on the side of the rotating disk, a sliding rod is slidably installed inside the first C-shaped bracket, and both ends of the sliding rod pass through the first C-shaped bracket, and one end of the first C-shaped bracket is fixedly installed A transmission block, a sleeve ring is fixedly connected between the two transmission blocks and the sleeve ring is movably sleeved on the outer surface of the protrusion, the other end of the first C-shaped bracket is fixedly connected to the second C-shaped bracket, a sliding bracket is fixedly installed on the top of the wastewater treatment tank, a slide plate is slidably installed inside the sliding bracket, a feeding hole is opened inside the slide plate, a feeding trough is fixedly installed on the top of the sliding bracket, a feeding pipe is fixedly installed on the top of the sliding bracket, a slide groove is opened on the side of the sliding bracket, a transmission plate is fixedly installed on the side of the second C-shaped bracket and the transmission plate is fixedly connected to the slide plate through the slide groove, a drainage protrusion is fixedly installed on the bottom side of the wastewater treatment tank, and a stirring mechanism is fixedly installed inside the drainage protrusion.

[0006] Preferably, the stirring mechanism includes a conical filter screen fixedly installed inside the drainage protrusion, a fixed bracket is fixedly installed on the top of the wastewater treatment tank, a second motor bracket is fixedly installed on the top of the fixed bracket, a second motor is fixedly installed on the inner side of the second motor bracket and the second motor output shaft extends to the inner side of the wastewater treatment tank, a rotating rod is fixedly connected to the end of the second motor output shaft, a stirring rod is fixedly installed on the outer surface of the rotating rod, a filter rack is fixedly installed on one end of the rotating rod, and a wastewater connecting pipe is fixedly connected to the top of the wastewater treatment tank and is interconnected with the wastewater treatment tank.

[0007] Preferably, a water tank is fixedly installed on the top of the fixed bracket, a water pump bracket is fixedly installed on the top of the fixed bracket, a water pump is fixedly installed on the top of the water pump bracket and one end of the water pump extends to the inside of the water tank, a connecting pipe is fixedly connected to the output end of the water pump, an annular connecting pipe is fixedly installed on the inner wall of the wastewater treatment tank and the connecting pipe penetrates the wastewater treatment tank and extends to the inside of the annular connecting pipe to communicate with it, a first transmission pipe is fixedly connected to the outer surface of the annular connecting pipe, one end of the first transmission pipe is fixedly connected to the second transmission pipe and the second transmission pipe is parallel to the conical filter net, and a nozzle is fixedly connected to the outer surface of the second transmission pipe.

[0008] Preferably, a slag discharge pipe is fixedly connected to the bottom of the conical filter screen, and the slag discharge pipe passes through the drainage protrusion and the wastewater treatment tank and is interconnected with the conical filter screen, and a valve is threadedly connected to the inside of the slag discharge pipe.

[0009] Preferably, a water outlet pipe is fixedly connected to the outer surface of the wastewater treatment tank, a magnetic block is fixedly installed on the inner side of the water outlet pipe, and a filter is magnetically attracted to the side of the magnetic block.

[0010] Preferably, the drainage protrusion is trapezoidal in shape and forms an angle with the inner wall of the wastewater treatment tank.

[0011] Preferably, circular protrusions are fixedly mounted on the bottom side of the drain grid, and the circular protrusions are evenly and equidistantly distributed on the bottom side of the drain grid.

[0012] Preferably, a base is fixedly installed at the bottom of the wastewater treatment tank, and the base is fixedly installed around the bottom of the wastewater treatment tank.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. When the second C-shaped bracket of the present invention moves left and right, the transmission plate will drive the slide plate to move left and right inside the sliding bracket. When the slide plate moves left and right, it will drive the discharge hole to move left and right. When the discharge hole corresponds to the discharge trough containing the coagulant, the material will be discharged into the stirring mechanism inside the wastewater treatment tank along the corresponding discharge pipe. Compared with the traditional device, this device starts the first motor to drive multiple components to move in coordination, accurately control the discharge hole and the discharge trough containing the coagulant and lime to discharge the material in sequence, and ensure the accurate and uniform delivery of raw materials. On the one hand, the lime is evenly mixed into the wastewater to effectively neutralize the acidity and protect the surrounding ecology; on the other hand, the timely and appropriate addition of the coagulant can condense the suspended matter and the metal ions into a solid state, effectively intercept pollutants, and prevent the untreated harmful substances from being discharged into the environment, which greatly improves the wastewater treatment effect and environmental protection efficiency.

[0015] 2. In the present invention, when the stirring rod starts to rotate, centrifugal force will be generated in the wastewater, so that the wastewater that has been fully mixed with the coagulant and lime will pass through the conical filter screen, and the large pieces of condensed solids will be retained in the conical filter screen to achieve solid-liquid separation, and then fall into the bottom side of the conical filter screen along the slope of the conical filter screen. At the same time, the rotating rod will drive the filter rack to rotate. Compared with the traditional device, in this device, the wastewater is discharged into the inner side of the conical filter screen through the wastewater connecting pipe. After the external controller starts the second motor, a series of ingenious mechanical linkages are immediately turned on. The second motor drives the rotating rod and the stirring rod to rotate, so that under the action of centrifugal force, the large pieces of condensed solids in the wastewater mixed with the coagulant and lime are accurately retained in the conical filter screen, effectively achieving solid-liquid separation and avoiding subsequent processing difficulties. At the same time, the rotating rod drives the filter rack to rotate, further strengthening the bottom side rotation force, increasing the centrifugal effect, making the wastewater treatment more thorough, reducing the burden on subsequent purification links, and improving the overall processing efficiency and quality.

[0016] 3. In the present invention, the first transmission pipe transmits the high-pressure water to the second transmission pipe, and then the high-pressure water is transmitted by the second transmission pipe to the nozzle in a linear array, and then the nozzle sprays the high-pressure water to the outer surface of the first motor bracket, so that the impurities adsorbed and remaining on the inner wall of the conical filter are allowed to slide to the bottom side of the conical filter along the slope of the conical filter. Compared with the traditional device, the present device transmits the water from the inside of the water tank to the connecting pipe through the water pump, and after being pressurized, it flows through the annular connecting pipe, the first transmission pipe, and the second transmission pipe distributed in a specific array in sequence, and finally the nozzle sprays the high-pressure water to the outer surface of the first motor bracket, which can strongly flush away the impurities adsorbed and remaining on the inner wall of the conical filter, so that the impurities slide smoothly to the bottom side along the slope of the conical filter, thereby ensuring the cleanliness of the inside of the device, avoiding the accumulation of impurities affecting the subsequent wastewater treatment effect, and ensuring the continuous and efficient operation of the entire treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the structure of the wastewater treatment tank of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the conical filter screen of the present invention;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 For the present invention Figure 5 Middle C enlarged image;

[0024] Figure 8 This is a schematic diagram of the first C-shaped bracket structure of the present invention.

[0025] In the figure: 1, wastewater treatment tank; 2, drainage protrusion; 3, conical filter; 4, first motor bracket; 5, first motor; 6, bracket; 7, first C-shaped bracket; 8, slide bar; 9, rotating disk; 10, sleeve ring; 11, protrusion; 12, transmission block; 13, second C-shaped bracket; 14, sliding bracket; 15, slide plate; 16, slide groove; 17, transmission plate; 18, feed trough; 19, feed hole; 20, feed pipe; 21, fixed bracket; 2 2. Water tank; 23. Water pump bracket; 24. Water pump; 25. Connecting pipe; 26. Annular connecting pipe; 27. First transmission pipe; 28. Second transmission pipe; 29. ​​Nozzle; 30. Second motor bracket; 31. Second motor; 32. Rotating rod; 33. Stirring rod; 34. Grid rack; 35. Circular protrusion; 36. Slag discharge pipe; 37. Valve; 38. Water outlet pipe; 39. Magnetic block; 40. Filter; 41. Wastewater connecting pipe; 42. Base. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 8As shown, an embodiment of the present invention provides a device for treating wastewater in coal mines, including a wastewater treatment tank 1, a first motor bracket 4 is fixedly installed on the top of the wastewater treatment tank 1, a first motor 5 is fixedly installed on the inner side of the first motor bracket 4, a bracket 6 is fixedly installed on the top of the wastewater treatment tank 1, a first C-shaped bracket 7 is fixedly installed on the top of the bracket 6, and the output shaft of the first motor 5 passes through the first C-shaped bracket 7 to the inner side, a rotating disk 9 is fixedly connected to the end of the output shaft of the first motor 5, a convex block 11 is fixedly installed on the side of the rotating disk 9, a sliding rod 8 is slidably installed inside the first C-shaped bracket 7, and both ends of the sliding rod 8 pass through the first C-shaped bracket 7, a transmission block 12 is fixedly installed at one end of the first C-shaped bracket 7, and a transmission block 12 is between the two transmission blocks 12 A sleeve ring 10 is fixedly connected and movably sleeved on the outer surface of the protrusion 11, the other end of the first C-shaped bracket 7 is fixedly connected to the second C-shaped bracket 13, a sliding bracket 14 is fixedly installed on the top of the wastewater treatment tank 1, a slide plate 15 is slidably installed inside the sliding bracket 14, a discharge hole 19 is provided inside the slide plate 15, a discharge trough 18 is fixedly installed on the top of the sliding bracket 14, a discharge pipe 20 is fixedly installed on the top of the sliding bracket 14, a slide groove 16 is provided on the side of the sliding bracket 14, a transmission plate 17 is fixedly installed on the side of the second C-shaped bracket 13, and the transmission plate 17 passes through the slide groove 16 and is fixedly connected to the slide plate 15, a drainage protrusion 2 is fixedly installed on the bottom side of the wastewater treatment tank 1, and a stirring mechanism is fixedly installed inside the drainage protrusion 2.

[0028] When the staff adds the coagulant into one feeding trough 18 and the lime into another feeding trough 18, the first motor 5 is started through the external controller. When the first motor 5 is started, the output shaft of the first motor 5 will drive the rotating disk 9 to start rotating. When the rotating disk 9 starts rotating, the protrusion 11 will start rotating. Since the protrusion 11 is located at the upper position of the outer surface of the rotating disk 9, the rotation of the protrusion 11 will drive the sleeve ring 10 to make a circular motion. When the sleeve ring 10 makes a circular motion, it will drive the transmission blocks 12 on both sides to move left and right. When the transmission blocks 12 on both sides move left and right, it will drive the slide bars 8 on both sides to slide left and right inside the first C-shaped bracket 7. Then the slide bars 8 on both sides will drive the second C-shaped bracket 13 to move left and right, and the other ends of the two slide bars 8 are fixedly connected to the extended protrusions on both sides of the second C-shaped bracket 13. When the second C-shaped bracket 13 moves left and right, the transmission plate 17 drives the slide plate 15 to move left and right inside the sliding bracket 14. When the slide plate 15 moves left and right, it will drive the discharge hole 19 to move left and right. When the discharge hole 19 corresponds to the discharge trough 18 with coagulant, the material will be discharged into the stirring mechanism inside the wastewater treatment tank 1 along the corresponding discharge pipe 20. When the discharge hole 19 corresponds to the discharge trough 18 with lime, the material will be discharged into the stirring mechanism inside the wastewater treatment tank 1 along the corresponding discharge pipe 20, and the discharge trough 18 and the discharge pipe 20 are respectively flush with the outer surface of the discharge hole 19, so that when the discharge hole 19 does not correspond, the raw material will be blocked by the slide plate 15, and the left and right movement range of the slide plate 15 will only move within the discharge range of the discharge troughs 18 on both sides, so that lime can be evenly added to the stirring mechanism to mix the wastewater evenly and reduce acid, and coagulant can be added to make the suspended matter and metal condense into a solid state to avoid being dissolved in the water and discharged to pollute the environment.

[0029] When the second C-shaped bracket 13 moves left and right, the transmission plate 17 will drive the slide plate 15 to move left and right inside the sliding bracket 14. When the slide plate 15 moves left and right, it will drive the discharge hole 19 to move left and right. When the discharge hole 19 corresponds to the discharge trough 18 containing the coagulant, the material will be discharged into the stirring mechanism inside the wastewater treatment tank 1 along the corresponding discharge pipe 20. Compared with the traditional device, this device starts the first motor 5 to drive multiple components to move in coordination, accurately control the discharge hole 19 and the discharge trough 18 containing the coagulant and lime to discharge in sequence, and ensure that the raw materials are accurately and evenly delivered. On the one hand, the lime evenly mixed into the wastewater can effectively neutralize the acidity and protect the surrounding ecology; on the other hand, the timely and appropriate addition of the coagulant can make the suspended matter and metal ions condense into a solid state, effectively intercept pollutants, and prevent untreated harmful substances from being discharged into the environment, which greatly improves the wastewater treatment effect and environmental protection efficiency.

[0030] Among them, the stirring mechanism includes a conical filter screen 3 fixedly installed inside the drainage protrusion 2, a fixed bracket 21 is fixedly installed on the top of the wastewater treatment tank 1, a second motor bracket 30 is fixedly installed on the top of the fixed bracket 21, a second motor 31 is fixedly installed on the inner side of the second motor bracket 30 and the output shaft of the second motor 31 extends to the inner side of the wastewater treatment tank 1, a rotating rod 32 is fixedly connected to the end of the output shaft of the second motor 31, a stirring rod 33 is fixedly installed on the outer surface of the rotating rod 32, a drain grid 34 is fixedly installed on one end of the rotating rod 32, and a wastewater connecting pipe 41 is fixedly connected to the top of the wastewater treatment tank 1 and is interconnected with the wastewater treatment tank 1.

[0031] When the wastewater is discharged to the inner side of the conical filter 3 through the wastewater connecting pipe 41, the second motor 31 is started through the external controller at the same time, when the second motor 31 is started, its output shaft will drive the rotating rod 32 to rotate, and when the rotating rod 32 rotates, it will drive the stirring rod 33 to start rotating, and when the stirring rod 33 starts rotating, the wastewater will generate centrifugal force, so that the wastewater that has been fully mixed with the coagulant and lime passes through the conical filter 3, and the large pieces of condensed solids are left in the conical filter 3 to achieve solid-liquid separation, and then fall into the bottom side of the conical filter 3 along the slope of the conical filter 3, and at the same time, the rotating rod 32 will drive the filter rack 34 to rotate, which can effectively increase the rotational force on the bottom side, thereby strengthening the centrifugal force.

[0032] When the stirring rod 33 starts to rotate, the wastewater will generate centrifugal force, so that the wastewater that has been fully mixed with the coagulant and lime passes through the conical filter 3, leaving the large pieces of condensed solids in the conical filter 3 to achieve solid-liquid separation, and then falls to the bottom side of the conical filter 3 along the slope of the conical filter 3. At the same time, the rotating rod 32 will drive the filter rack 34 to rotate. Compared with the traditional device, the wastewater in this device is discharged into the inner side of the conical filter 3 through the wastewater connecting pipe 41. After the external controller starts the second motor 31 A series of ingenious mechanical linkages are then started. The second motor 31 drives the rotating rod 32 and the stirring rod 33 to rotate, so that under the action of centrifugal force, large pieces of condensed solids in the wastewater mixed with coagulant and lime are accurately retained in the conical filter screen 3, effectively realizing solid-liquid separation and avoiding subsequent treatment difficulties. At the same time, the rotating rod 32 drives the filter rack 34 to rotate, further strengthening the bottom side rotation force, increasing the centrifugal effect, making the wastewater treatment more thorough, reducing the burden on subsequent purification links, and improving the overall treatment efficiency and quality.

[0033] Among them, a water tank 22 is fixedly installed on the top of the fixed bracket 21, a water pump frame 23 is fixedly installed on the top of the fixed bracket 21, a water pump 24 is fixedly installed on the top of the water pump frame 23, and one end of the water pump 24 extends to the inside of the water tank 22, and a connecting pipe 25 is fixedly connected to the output end of the water pump 24, an annular connecting pipe 26 is fixedly installed on the inner wall of the wastewater treatment tank 1, and the connecting pipe 25 penetrates the wastewater treatment tank 1 and extends to the inside of the annular connecting pipe 26 to communicate with it, a first transmission pipe 27 is fixedly connected to the outer surface of the annular connecting pipe 26, one end of the first transmission pipe 27 is fixedly connected to the second transmission pipe 28, and the second transmission pipe 28 is parallel to the conical filter net 3, and a nozzle 29 is fixedly connected to the outer surface of the second transmission pipe 28.

[0034] When the water pump 24 is started by the external controller, the water inside the water tank 22 will be transmitted to the inside of the connecting pipe 25 through the water pump 24, and then the connecting pipe 25 will transport the high-pressure water to the annular connecting pipe 26, and then the annular connecting pipe 26 will transport it to the first transmission pipe 27 in a circular array, and then the first transmission pipe 27 will transport the high-pressure water to the second transmission pipe 28, and then the high-pressure water will be transported by the second transmission pipe 28 to the nozzle 29 in a linear array, and then the nozzle 29 will spray the high-pressure water to the outer surface of the first motor bracket 4, so that the impurities adsorbed and remaining on the inner wall of the conical filter screen 3 will slide down to the bottom side of the conical filter screen 3 along the slope of the conical filter screen 3.

[0035] The first transmission pipe 27 then transmits the high-pressure water to the second transmission pipe 28, and then the high-pressure water is transmitted to the linear array-shaped nozzle 29 by the second transmission pipe 28, and then the nozzle 29 sprays the high-pressure water to the outer surface of the first motor bracket 4, so that the impurities adsorbed and remaining on the inner wall of the conical filter 3 slide down to the bottom side of the conical filter 3 along the slope of the conical filter 3. Compared with the traditional device, this device is transmitted from the inner side of the water tank 22 to the connecting pipe 25 through the water pump 24, and after being pressurized, it flows through the annular connecting pipe 26, the first transmission pipe 27, and the second transmission pipe 28 distributed in a specific array in turn, and finally the nozzle 29 sprays high-pressure water to the outer surface of the first motor bracket 4, which can strongly flush away the impurities adsorbed and remaining on the inner wall of the conical filter 3, so that it slides smoothly to the bottom side along the slope of the conical filter 3, ensuring the cleanliness of the inside of the device, avoiding the accumulation of impurities affecting the subsequent wastewater treatment effect, and ensuring the continuous and efficient operation of the entire treatment process.

[0036] The bottom of the conical filter screen 3 is fixedly connected with a slag discharge pipe 36 which passes through the drainage protrusion 2 and the wastewater treatment tank 1 and is interconnected with the conical filter screen 3 . A valve 37 is threadedly connected inside the slag discharge pipe 36 .

[0037] The valve 37 is rotated by external force to separate the valve 37 from the slag discharge pipe 36 , and the solid matter gathered and condensed on the bottom side of the conical filter screen 3 is discharged outward along the slag discharge pipe 36 .

[0038] The outer surface of the wastewater treatment tank 1 is fixedly connected with a water outlet pipe 38 , a magnetic block 39 is fixedly installed on the inner side of the water outlet pipe 38 , and a filter 40 is magnetically attracted to the side of the magnetic block 39 .

[0039] The filter 40 is magnetically attracted to the side of the magnetic block 39, and the filter 40 is filled with filter materials of different particle sizes, which can further remove residual impurities in the wastewater and improve the clarity of the wastewater.

[0040] The drainage protrusion 2 is in a trapezoidal shape and forms an angle with the inner wall of the wastewater treatment tank 1 .

[0041] Because the drainage protrusion 2 is trapezoidal in shape and forms an angle with the inner wall of the wastewater treatment tank 1, the treated wastewater can be quickly discharged outward through the outlet pipe 38 along the trapezoidal slope of the drainage protrusion 2, avoiding accumulation inside the wastewater treatment tank 1.

[0042] Among them, circular protrusions 35 are fixedly installed on the bottom side of the drain grid frame 34, and the circular protrusions 35 are evenly and equidistantly distributed on the bottom side of the drain grid frame 34.

[0043] By evenly and equidistantly distributing the circular protrusions 35 on the bottom of the drain rack 34 , when too much lime and coagulant are deposited at the bottom, the circular protrusions 35 can be rotated to stir and float upward again.

[0044] The bottom of the wastewater treatment tank 1 is fixedly mounted with a base 42 , and the base 42 is fixedly mounted around the bottom of the wastewater treatment tank 1 .

[0045] By fixing the base 42 around the bottom of the wastewater treatment tank 1, the stability of the entire device can be effectively increased to prevent it from being easily affected by external physical factors.

[0046] Working principle and usage process:

[0047] When the staff adds the coagulant into one feeding trough 18 and the lime into another feeding trough 18, the first motor 5 is started through the external controller. When the first motor 5 is started, the output shaft of the first motor 5 will drive the rotating disk 9 to start rotating. When the rotating disk 9 starts rotating, the protrusion 11 will start rotating. Since the protrusion 11 is located at the upper position of the outer surface of the rotating disk 9, the rotation of the protrusion 11 will drive the sleeve ring 10 to make a circular motion. When the sleeve ring 10 makes a circular motion, it will drive the transmission blocks 12 on both sides to move left and right. When the transmission blocks 12 on both sides move left and right, it will drive the slide bars 8 on both sides to slide left and right inside the first C-shaped bracket 7. Then the slide bars 8 on both sides will drive the second C-shaped bracket 13 to move left and right, and the other ends of the two slide bars 8 are fixedly connected to the extended protrusions on both sides of the second C-shaped bracket 13. When the second C-shaped bracket 13 moves left and right, the transmission plate 17 drives the slide plate 15 to move left and right inside the sliding bracket 14. When the slide plate 15 moves left and right, it will drive the discharge hole 19 to move left and right. When the discharge hole 19 corresponds to the discharge trough 18 with coagulant, the material will be discharged into the stirring mechanism inside the wastewater treatment tank 1 along the corresponding discharge pipe 20. When the discharge hole 19 corresponds to the discharge trough 18 with lime, the material will be discharged into the stirring mechanism inside the wastewater treatment tank 1 along the corresponding discharge pipe 20, and the discharge trough 18 and the discharge pipe 20 are respectively flush with the outer surface of the discharge hole 19, so that when the discharge hole 19 does not correspond, the raw material will be blocked by the slide plate 15, and the left and right movement range of the slide plate 15 will only move within the discharge range of the discharge troughs 18 on both sides, so that lime can be evenly added to the stirring mechanism to mix the wastewater evenly and reduce acid, and coagulant can be added to make the suspended matter and metal condense into a solid state to avoid being dissolved in the water and discharged to pollute the environment.

[0048] When the wastewater is discharged to the inner side of the conical filter 3 through the wastewater connecting pipe 41, the second motor 31 is started through the external controller at the same time, when the second motor 31 is started, its output shaft will drive the rotating rod 32 to rotate, and when the rotating rod 32 rotates, it will drive the stirring rod 33 to start rotating, and when the stirring rod 33 starts rotating, the wastewater will generate centrifugal force, so that the wastewater that has been fully mixed with the coagulant and lime passes through the conical filter 3, and the large pieces of condensed solids are left in the conical filter 3 to achieve solid-liquid separation, and then fall into the bottom side of the conical filter 3 along the slope of the conical filter 3, and at the same time, the rotating rod 32 will drive the filter rack 34 to rotate, which can effectively increase the rotational force on the bottom side, thereby strengthening the centrifugal force.

[0049] When the water pump 24 is started by the external controller, the water inside the water tank 22 will be transmitted to the inside of the connecting pipe 25 through the water pump 24, and then the connecting pipe 25 will transport the high-pressure water to the annular connecting pipe 26, and then the annular connecting pipe 26 will transport it to the first transmission pipe 27 in a circular array, and then the first transmission pipe 27 will transport the high-pressure water to the second transmission pipe 28, and then the high-pressure water will be transported by the second transmission pipe 28 to the nozzle 29 in a linear array, and then the nozzle 29 will spray the high-pressure water to the outer surface of the first motor bracket 4, so that the impurities adsorbed and remaining on the inner wall of the conical filter screen 3 will slide down to the bottom side of the conical filter screen 3 along the slope of the conical filter screen 3.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for treating coal mine wastewater, comprising a wastewater treatment tank (1), characterized in that: A first motor bracket (4) is fixedly mounted on the top of the wastewater treatment tank (1), a first motor (5) is fixedly mounted on the inner side of the first motor bracket (4), a bracket (6) is fixedly mounted on the top of the wastewater treatment tank (1), a first C-shaped bracket (7) is fixedly mounted on the top of the bracket (6), and the output shaft of the first motor (5) passes through the first C-shaped bracket (7) to the inner side, a rotating disk (9) is fixedly connected to the end of the output shaft of the first motor (5), a convex block (11) is fixedly mounted on the side of the rotating disk (9), a sliding rod (8) is slidably mounted inside the first C-shaped bracket (7), and both ends of the sliding rod (8) pass through the inside of the first C-shaped bracket (7), a transmission block (12) is fixedly mounted on one end of the first C-shaped bracket (7), a sleeve ring (10) is fixedly connected between the two transmission blocks (12), and the sleeve ring (10) is movable. The first C-shaped bracket (7) is sleeved on the outer surface of the protrusion (11), the other end of the first C-shaped bracket (7) is fixedly connected to the second C-shaped bracket (13), the top of the wastewater treatment tank (1) is fixedly installed with a sliding bracket (14), the interior of the sliding bracket (14) is slidably installed with a slide plate (15), the interior of the slide plate (15) is provided with a discharge hole (19), the top of the sliding bracket (14) is fixedly installed with a discharge trough (18), the top of the sliding bracket (14) is fixedly installed with a discharge pipe (20), the side of the sliding bracket (14) is provided with a slide groove (16), the side of the second C-shaped bracket (13) is fixedly installed with a transmission plate (17), and the transmission plate (17) passes through the slide groove (16) and is fixedly connected to the slide plate (15), the bottom side of the wastewater treatment tank (1) is fixedly installed with a drainage protrusion (2), and the drainage protrusion (2) is fixedly installed with a stirring mechanism.

2. The device for treating coal mine wastewater according to claim 1, characterized in that: The stirring mechanism comprises a conical filter screen (3) fixedly mounted inside the drainage protrusion (2); a fixed bracket (21) is fixedly mounted on the top of the wastewater treatment tank (1); a second motor bracket (30) is fixedly mounted on the top of the fixed bracket (21); a second motor (31) is fixedly mounted on the inner side of the second motor bracket (30), and the output shaft of the second motor (31) extends to the inner side of the wastewater treatment tank (1); a rotating rod (32) is fixedly connected to the end of the output shaft of the second motor (31); a stirring rod (33) is fixedly mounted on the outer surface of the rotating rod (32); a drain grid (34) is fixedly mounted on one end of the rotating rod (32); a wastewater connecting pipe (41) is fixedly connected to the top of the wastewater treatment tank (1) and is in communication with the wastewater treatment tank (1).

3. A device for treating coal mine wastewater according to claim 2, characterized in that: A water tank (22) is fixedly mounted on the top of the fixed bracket (21); a water pump bracket (23) is fixedly mounted on the top of the fixed bracket (21); a water pump (24) is fixedly mounted on the top of the water pump bracket (23), and one end of the water pump (24) extends to the inside of the water tank (22); a connecting pipe (25) is fixedly connected to the output end of the water pump (24); an annular connecting pipe (26) is fixedly mounted on the inner wall of the wastewater treatment tank (1), and the connecting pipe (25) penetrates the wastewater treatment tank (1) and extends to the inside of the annular connecting pipe (26) to communicate with it; a first transmission pipe (27) is fixedly connected to the outer surface of the annular connecting pipe (26); one end of the first transmission pipe (27) is fixedly connected to a second transmission pipe (28), and the second transmission pipe (28) is parallel to the conical filter screen (3); and a nozzle (29) is fixedly connected to the outer surface of the second transmission pipe (28).

4. The device for treating coal mine wastewater according to claim 2, characterized in that: A slag discharge pipe (36) is fixedly connected to the bottom of the conical filter screen (3), and the slag discharge pipe (36) passes through the drainage protrusion (2) and the wastewater treatment tank (1) and is interconnected with the conical filter screen (3), and a valve (37) is threadedly connected to the inside of the slag discharge pipe (36).

5. The device for treating coal mine wastewater according to claim 1, characterized in that: The outer surface of the wastewater treatment tank (1) is fixedly connected with a water outlet pipe (38), the inner side of the water outlet pipe (38) is fixedly installed with a magnetic attraction block (39), and the side of the magnetic attraction block (39) is magnetically attracted with a filter (40).

6. The device for treating coal mine wastewater according to claim 1, characterized in that: The drainage protrusion (2) is in a trapezoidal shape and forms an angle with the inner wall of the wastewater treatment tank (1).

7. The device for treating coal mine wastewater according to claim 2, characterized in that: Circular protrusions (35) are fixedly mounted on the bottom side of the drain grid frame (34), and the circular protrusions (35) are evenly and equidistantly distributed on the bottom side of the drain grid frame (34).

8. The device for treating coal mine wastewater according to claim 1, characterized in that: A base (42) is fixedly mounted on the bottom of the wastewater treatment tank (1), and the base (42) is fixedly mounted around the bottom of the wastewater treatment tank (1).

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