An environmental protection treatment equipment for sewage in a thermal power station

Abstract

The present invention discloses an environmental protection treatment device for sewage in a thermal power station, which comprises a tank body. An oil-water separation mechanism is arranged at the upper end of the tank body, a stirring mechanism is arranged in the middle of the tank body, and a sewage discharge mechanism is arranged at the bottom of the tank body. The oil-water separation mechanism includes two collecting plates, and the two collecting plates are controlled by a rotating mechanism to rotate on the surface of the sewage to collect waste oil. An oil discharge port and a collecting box are arranged on one side of the upper end of the tank body. After the waste oil is collected, it is discharged into the collecting box through the oil discharge port. In the present invention, the two collecting plates are driven to rotate by the rotating mechanism, and the baffles on the collecting plates will collect floating substances such as waste oil on the upper surface of the sewage. When the two collecting plates are combined into a collecting groove, the waste oil and other floating substances are collected in the collecting groove, and then discharged into the collecting box through the oil discharge port, so as to realize the collection of waste oil and other floating substances; the sewage discharge mechanism can filter the precipitated sludge and then discharge it through the sewage discharge port, realizing the collection of the sludge.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to an environmental protection treatment device for thermal power station sewage. Background Art

[0002] There are many types of sewage generated by thermal power stations, including industrial cooling water drainage, acid-base regeneration sewage of chemical water treatment systems, filter backwashing sewage, boiler cleaning sewage, coal conveying flushing and dust removal sewage, oily sewage, cooling tower blowdown sewage, etc. Due to the variety of sewage in thermal power stations, the types, contents, and discharge amounts of pollutants in various types of sewage are not fixed, resulting in a rather complex composition of industrial sewage. Its main pollutants are: suspended solids, oil, organic matter, sulfides, etc. If the sewage from thermal power stations is directly discharged without effective treatment, it may pollute the environment such as water bodies and soil, affecting the ecological balance.

[0003] When treating the sewage from thermal power stations, multiple treatment steps are often carried out through multiple treatment ponds, which occupy a large area and require a high investment cost. Moreover, the industrial wastewater from thermal power stations usually contains a high amount of oil and suspended solids. These wastewater need to be removed of oil and suspended solids before they can be discharged or reused. Therefore, we propose an environmental protection treatment device for thermal power station sewage. Summary of the Invention

[0004] The purpose of the present invention is to provide an environmental protection treatment device for thermal power station sewage to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An environmental protection treatment device for thermal power station sewage, including a tank body, the upper end of the tank body is provided with an opening, and the bottom is of an inclined structure;

[0006] An oil-water separation mechanism is provided at the upper end of the tank body;

[0007] A stirring mechanism is provided in the middle of the tank body;

[0008] A sewage discharge mechanism is provided at the bottom of the tank body;

[0009] Among them, the oil-water separation mechanism includes two collection plates. The two collection plates are controlled to rotate simultaneously on the surface of the sewage through a rotating mechanism to collect oily sewage, and after collecting the oily sewage, they are controlled to rise through a driving mechanism;

[0010] An oil discharge port is provided on one side of the upper end of the tank body. The oil discharge port is connected to a collection box. The collection box is fixed outside the tank body. The oil discharge port is sealed by a sealing block. The sealing block is opened by a driving mechanism, and when the sealing block is opened, the collection plates rise simultaneously;

[0011] Among them, the sewage discharge mechanism includes a filter plate located at the bottom of the tank body. The filter plate is inclined and abuts against the bottom of the tank body. The filter plate is driven to lift and lower by a telescopic rod;

[0012] A sewage discharge port is provided on one side of the tank body near the bottom, and a drain port is provided at the bottom of the tank body. Both the drain port and the sewage discharge port are located on the lower side of the inclined plane at the bottom of the tank body.

[0013] Preferably, the rotating mechanism includes a mounting plate located above the middle of the tank body. Two first rotating shafts are rotatably installed at the lower end of the mounting plate. The first rotating shafts are driven to rotate by a first motor. One ends of the two collecting plates are respectively fixedly connected to the lower ends of the two first rotating shafts, and the other end faces are tangent to the inner wall of the tank body. Two first gears are installed on the two first rotating shafts, and the two first gears are meshed and connected.

[0014] Preferably, a baffle is provided on one side of the collecting plate. The two collecting plates are spliced to form a collecting groove. The bottom of the collecting groove is inclined downward, and an opening is provided at one end of the collecting groove close to the inner wall of the tank body;

[0015] A sealing strip is provided on one side of the collecting plate. After the two collecting plates are spliced, they are sealed by the sealing strip.

[0016] Preferably, the driving mechanism includes a support frame fixedly installed at the upper end of the tank body. A second rotating shaft is rotatably installed at the upper end of the support frame. The second rotating shaft is driven to rotate by a second motor;

[0017] A first cylindrical rack and a second cylindrical rack are connected up and down on the support frame. Two second gears are provided on the second rotating shaft. The two second gears are respectively meshed and connected with the first cylindrical rack and the second cylindrical rack;

[0018] The lower end of the first cylindrical rack is fixedly connected to the mounting plate;

[0019] A lifting frame is provided at the lower end of the second cylindrical rack. Telescopic frames are provided on both sides of the lifting frame. A rotating cylinder is sleeved at one end of the telescopic frame. The rotating cylinder is rotatably connected with the telescopic frame;

[0020] Guide plates are provided on both sides of the upper end of the sealing block. A guide inclined surface is provided on one side of the guide plate. When the second cylindrical rack rises, the rotating cylinder is tangent to the guide inclined surface.

[0021] Preferably, the telescopic frame includes a guide post. A disc is provided at one end of the guide post. Two telescopic columns are provided at one end of the disc. A limit block is provided at one end of the telescopic column. The telescopic frame is slidably connected with both sides of the lifting frame through the telescopic column. A second return spring is sleeved outside the telescopic column. After the telescopic frame is compressed into the lifting frame, it is reset by the second return spring.

[0022] Preferably, a limiting plate is provided at the upper end of the guide plate, and the upper end of the limiting plate is inclined outward. When the second cylindrical rack descends, the limiting plate compresses the telescopic frame;

[0023] A ball is movably installed at the outer end of the guide post. When the second cylindrical rack descends, the ball is in rolling connection with the guide plate.

[0024] Preferably, two guide posts are provided on one side of the sealing block. The guide posts are slidably connected to the collection box, and a first return spring is sleeved on the guide posts. After the sealing block is opened, it is reset by the first return spring.

[0025] Preferably, the stirring mechanism includes a first fixing frame and a second fixing frame fixed inside the tank body. A stirring frame is rotatably installed in the middle of the first fixing frame. A first bevel gear is provided at the upper end of the stirring frame. A third rotating shaft is rotatably installed inside the second fixing frame. A second bevel gear is provided at one end of the third rotating shaft. The second bevel gear is meshed and connected with the first bevel gear. The third rotating shaft is driven to rotate by a third motor, and the third motor is fixedly installed outside the tank body.

[0026] Preferably, the sewage outlet is opened or closed through a first valve, and the drain outlet is controlled to be opened or closed through a second valve.

[0027] Preferably, a lifting column is provided at the lower end of the filter plate, and the lifting column is vertically movably connected to the bottom of the tank body. The lower end of the lifting column is fixedly connected to the output end of the telescopic rod, and the telescopic rod is fixedly installed at the lower end outside the tank body.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] In the present invention, the rotation mechanism drives the two collection plates to rotate 180 degrees, so that the two collection plates are spliced into a whole to form a collection groove. During the rotation of the two collection plates, the baffles on the collection plates will collect floating substances such as oil on the upper surface of the sewage. After the two collection plates are combined into a collection groove, the floating substances such as oil are collected into the collection groove, and then the driving mechanism drives the collection groove to rise a certain distance. During the rising process of the collection groove, the sealing block is simultaneously opened, and the first return spring is compressed by the extrusion of the sealing block. At this time, the floating substances such as oil inside the collection groove will be discharged into the collection box through the oil drain port, and the collection of floating substances such as oil can be realized;

[0030] Through the sewage disposal mechanism, the flocculated sludge can be treated and collected. After the sewage is flocculated, the telescopic rod drives the filter plate to rise, so that the precipitated sludge is isolated above the filter plate by the filter plate. Therefore, the water below the filter plate is the filtered water. After the water is discharged through the drain outlet, the sludge will accumulate on the filter plate. Since the filter plate is of an inclined structure, the sludge can be discharged through the sewage outlet, realizing the collection of the sludge. Description of the Drawings

[0031] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0032] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0033] Figure 3 Schematic diagram of the overall structure of the present invention Figure 3 ;

[0034] Figure 4 Schematic diagram of the overall structure of the present invention Figure 4 ;

[0035] Figure 5 Schematic diagram of the overall structure of the present invention Figure 5 ;

[0036] Figure 6 Schematic diagram of the oil-water separation mechanism of the present invention Figure 1 ;

[0037] Figure 7 Schematic diagram of the structure of the oil-water separation mechanism of the present invention Figure 2 ;

[0038] Figure 8 Cross-section of the overall structure of the present invention Figure 1 ;

[0039] Figure 9 Cross-section of the overall structure of the present invention Figure 2 ;

[0040] Figure 10 Schematic diagram of the structure of the tank body of the present invention;

[0041] Figure 11 Schematic diagram of the overall structure of the telescopic rack of the present invention

[0042] In the figure: 1, tank body; 2, oil-water separation mechanism; 21, collection plate; 211, baffle; 212, collection tank; 213, sealing strip; 22, oil drain port; 23, collection box; 24, sealing block; 241, guide plate; 242, guide inclined surface; 243, limiting plate; 244, guide post; 25, first reset spring; 3, stirring mechanism; 31, first fixing frame; 32, second fixing frame; 33, stirring frame; 34, first bevel gear; 35, third rotating shaft; 36, second bevel gear; 37, third motor; 4, sewage discharge mechanism; 41, filter plate; 42, lifting column; 43, telescopic rod; 44, sewage discharge port; 45, first valve; 46, drain port; 47, second valve; 5, rotating mechanism; 51, mounting plate; 52, first rotating shaft; 53, first motor; 54, first gear; 6, driving mechanism; 61, support frame; 62, second rotating shaft; 63, second motor; 64, first cylindrical rack; 65, second cylindrical rack; 66, second gear; 67, lifting frame; 68, telescopic frame; 681, guide post; 682, disc; 683, telescopic column; 684, limiting block; 69, rotating cylinder; 610, second reset spring; 611, ball. Detailed implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] Please refer to Figure 1-11 , the present invention provides a technical solution: an environmental protection treatment device for thermal power station sewage, including a tank body 1 with an opening at the upper end and an inclined structure at the bottom;

[0045] At the upper end of the tank body 1, there is an oil-water separation mechanism 2. The oil-water separation mechanism 2 is used to separate and collect floating substances such as oil on the surface of the sewage. The oil-water separation mechanism 2 includes two collecting plates 21. On one side of the collecting plate 21, there is a baffle 211. After the two collecting plates 21 are spliced, a collecting groove 212 is formed. The bottom of the collecting groove 212 slopes downward, and an opening is provided at one end of the collecting groove 212 close to the inner wall of the tank body 1. On one side of the collecting plate 21, there is a sealing strip 213. After the two collecting plates 21 are spliced, they are sealed by the sealing strip 213. The two collecting plates 21 are controlled by a rotating mechanism 5 to rotate simultaneously on the surface of the sewage to collect oil, and after collecting the oil, they are controlled to rise by a driving mechanism 6. The rotating mechanism 5 includes a mounting plate 51 located above the middle of the tank body 1. At the lower end of the mounting plate 51, two first rotating shafts 52 are rotatably installed. The first rotating shafts 52 are driven to rotate by a first motor 53. One end of each of the two collecting plates 21 is fixedly connected to the lower end of each of the two first rotating shafts 52, and the other end surfaces are tangent to the inner wall of the tank body 1. Two first gears 54 are installed on the two first rotating shafts 52, and the two first gears 54 are meshed and connected;

[0046] Among them, the first motor 53 drives the first rotating shaft 52 to rotate. Through the meshing connection of the two first gears 54, the two first rotating shafts 52 rotate simultaneously, so that the two collecting plates 21 rotate simultaneously.

[0047] The driving mechanism 6 includes a support frame 61 fixedly installed at the upper end of the tank body 1. At the upper end of the support frame 61, a second rotating shaft 62 is rotatably installed. The second rotating shaft 62 is driven to rotate by a second motor 63. A first cylindrical rack 64 and a second cylindrical rack 65 are connected up and down on the support frame 61. Two second gears 66 are provided on the second rotating shaft 62. The two second gears 66 are respectively meshed and connected with the first cylindrical rack 64 and the second cylindrical rack 65. The lower end of the first cylindrical rack 64 is fixedly connected to the mounting plate 51;

[0048] Among them, the second motor 63 drives the second rotating shaft 62 to rotate, so that the two second gears 66 on the second rotating shaft 62 are respectively meshed and connected with the first cylindrical rack 64 and the second cylindrical rack 65, so that the first cylindrical rack 64 and the second cylindrical rack 65 can rise or fall, so that the two collecting plates 21 can rise or fall.

[0049] One side of the upper end of the tank body 1 is provided with an oil discharge port 22, the oil discharge port 22 is connected with a collection box 23, the collection box 23 is fixed outside the tank body 1, the oil discharge port 22 is sealed by a sealing block 24, the sealing block 24 is opened by a driving mechanism 6, and when the sealing block 24 is opened, the collection plate 21 rises at the same time. There are two guide posts 244 on one side of the sealing block 24, the guide posts 244 are slidably connected with the collection box 23, a first reset spring 25 is sleeved on the guide posts 244, and after the sealing block 24 is opened, it is reset by the first reset spring 25. The lower end of the cylindrical rack two 65 is provided with a lifting frame 67, both sides of the lifting frame 67 are provided with telescopic frames 68, one end of the telescopic frame 68 is sleeved with a rotating cylinder 69, the rotating cylinder 69 is rotatably connected with the telescopic frame 68, both sides of the upper end of the sealing block 24 are provided with guide plates 241, one side of the guide plate 241 is provided with a guide inclined surface 242, and when the cylindrical rack two 65 rises, the rotating cylinder 69 is tangent to the guide inclined surface 242;

[0050] Among them, the motor two 63 drives the rotating shaft two 62 to rotate, so that the two gears two 66 on the rotating shaft two 62 are respectively meshed and connected with the cylindrical rack one 64 and the cylindrical rack two 65, so that the cylindrical rack one 64 and the cylindrical rack two 65 can rise or fall, as Figure 4 and Figure 7 shown, when the cylindrical rack one 64 drives the two collection plates 21 to rise, the cylindrical rack two 65 also drives the lifting frame 67 to rise at the same time, so that the telescopic frames 68 on both sides of the lifting frame 67 also rise at the same time, so that the rotating cylinders 69 also rise at the same time. At this time, the two rotating cylinders 69 are tangent to the guide inclined surfaces 242 on the guide plates 241. Therefore, when the two rotating cylinders 69 rise, they will squeeze the two guide plates 241 through the guide inclined surfaces 242, so that the sealing block 24 moves away from the oil discharge port 22, so that the sealing block 24 is opened. At this time, the first reset spring 25 is compressed, as Figure 5 shown, so when the two collection plates 21 rise, the sealing block 24 is opened at the same time. When the rotating cylinder 69 rises, the rotating cylinder 69 and the guide inclined surface 242 are in rolling friction, which can reduce the friction between the two.

[0051] The telescopic frame 68 includes a guide post 681, one end of the guide post 681 is provided with a disc 682, one end of the disc 682 is provided with two telescopic columns 683, one end of the telescopic column 683 is provided with a limit block 684, the telescopic frame 68 is slidably connected with both sides of the lifting frame 67 through the telescopic column 683, a second reset spring 610 is sleeved outside the telescopic column 683, and after the telescopic frame 68 is compressed into the lifting frame 67, it is reset by the second reset spring 610. The upper end of the guide plate 241 is provided with a limit plate 243, the upper end of the limit plate 243 is inclined outward, and when the cylindrical rack two 65 descends, the limit plate 243 compresses the telescopic frame 68. A ball 611 is movably installed at the outer end of the guide post 681, and when the cylindrical rack two 65 descends, the ball 611 is in rolling connection with the guide plate 241;

[0052] Among them, the motor two 63 drives the rotation of the rotating shaft two 62, so that the two gears two 66 on the rotating shaft two 62 are respectively meshed and connected with the cylindrical rack one 64 and the cylindrical rack two 65, so that the cylindrical rack one 64 and the cylindrical rack two 65 can rise or fall, as Figure 2 and Figure 6 . When the cylindrical rack one 64 drives the two collecting plates 21 to descend, the cylindrical rack two 65 also drives the lifting frame 67 to descend at the same time, so that the telescopic frames 68 on both sides of the lifting frame 67 also descend at the same time. When the balls 611 at the outer ends of the two guide columns 681 contact the limiting plate 243, the inclined surface inside the limiting plate 243 will squeeze the balls 611, so that the telescopic columns 683 of the two telescopic frames 68 slide towards the inside of the lifting frame 67, and compress the return spring two 610. The lifting frame 67 continues to descend, causing the balls 611 to roll downward from the inside of the limiting plate 243 to the inside of the guide plate 241. When the descent of the lifting frame 67 is completed, the balls 611 will break away from the guide plate 241 and rebound to the lower part of the guide inclined surface 242 through the return spring two 610, as Figure 3 and Figure 7 .

[0053] Among them, the working principle of the oil-water separation mechanism 2 is as follows: as Figure 1 and Figure 6 are the initial states. The two collecting plates 21 are spliced together to form a collecting groove 212. At this time, the collecting groove 212 is located above the tank body 1 and close to the collecting box 23. The sewage generated by the thermal power station is discharged into the tank body 1 through the upper end of the tank body 1. When the sewage liquid level rises to near the lower end of the oil discharge port 22, the discharge stops. Floating substances such as sewage oil will float on the upper surface of the sewage. The rotating mechanism 5 is used to drive the two collecting plates 21 to rotate 180 degrees, so that the two collecting plates 21 are spliced in the reverse direction. At this time, the baffles 211 of the two collecting plates 21 are close to each other, as Figure 2 is the position after the two collecting plates 21 rotate 180 degrees. Then, the driving mechanism 6 is used to make the two collecting plates 21 descend, so that the floating substances such as sewage oil on the upper surface of the sewage are located above the two collecting plates 21, but the upper ends of the baffles 211 on the collecting plates 21 are exposed above the liquid level, as Figure 3 is the position after the two collecting plates 21 descend. At the same time, the two rotating cylinders 69 also descend to the position tangent to the guide inclined surface 242, as Figure 7 . Then, the rotating mechanism 5 is used to drive the two collecting plates 21 to rotate 180 degrees again, so that the two collecting plates 21 are spliced into a whole to form a collecting groove 212, as Figure 4This is the position after the two collecting plates 21 rotate 180 degrees. During the rotation of the two collecting plates 21, the baffles 211 on the collecting plates 21 will collect floating substances such as oil on the upper surface of the sewage. After the two collecting plates 21 are combined into the collecting tank 212, the floating substances such as oil are collected into the collecting tank 212. At this time, the collecting tank 212 is located at the oil discharge port 22. Then, the driving mechanism 6 drives the collecting tank 212 to rise a certain distance. During the rising process of the collecting tank 212, the sealing block 24 is simultaneously opened. At this time, the first return spring 25 is compressed by the extrusion of the sealing block 24. At this time, the floating substances such as oil inside the collecting tank 212 will be discharged into the collecting box 23 through the oil discharge port 22, as Figure 5 This is the position of the collecting tank 212 and the sealing block 24 in the oil discharge state. After the floating substances such as oil inside the collecting tank 212 are discharged, the collecting tank 212 continues to rise. When the two rotating cylinders 69 leave the guiding inclined surface 242, the sealing block 24 is restored to the position of the oil discharge port 22 by the elastic force of the first return spring 25, as Figure 1 , thus completing the collection of floating substances such as oil.

[0054] A stirring mechanism 3 is provided in the middle of the tank body 1. The stirring mechanism 3 includes a first fixing frame 31 and a second fixing frame 32 fixed inside the tank body 1. A stirring frame 33 is rotatably installed in the middle of the first fixing frame 31. A first bevel gear 34 is provided at the upper end of the stirring frame 33. A third rotating shaft 35 is rotatably installed inside the second fixing frame 32. A second bevel gear 36 is provided at one end of the third rotating shaft 35. The second bevel gear 36 is meshed and connected with the first bevel gear 34. The third rotating shaft 35 is driven to rotate by a third motor 37. The third motor 37 is fixedly installed outside the tank body 1;

[0055] Among them, the stirring mechanism 3 is used to stir the sewage. As shown in the figure, when the collection of floating substances such as oil is completed, flocculants, coagulants and other agents are added into the tank body 1. The third motor 37 drives the third rotating shaft 35 to rotate, so that the second bevel gear 36 rotates. Through the first bevel gear 34, the stirring frame 33 rotates. Therefore, the sewage is stirred, so that the flocculants, coagulants and other agents can be fully mixed with the sewage. The first bevel gear 34 and the second bevel gear 36 can be installed in a sealed box to prevent corrosion by the sewage.

[0056] A sewage discharge mechanism 4 is provided at the bottom of the tank body 1. The sewage discharge mechanism 4 includes a filter plate 41 located at the bottom of the tank body 1. The filter plate 41 is inclined and abuts against the bottom of the tank body 1. The filter plate 41 is driven to lift and lower by a telescopic rod 43. A lifting column 42 is provided at the lower end of the filter plate 41, and the lifting column 42 is vertically movably connected to the bottom of the tank body 1. The lower end of the lifting column 42 is fixedly connected to the output end of the telescopic rod 43. The telescopic rod 43 is fixedly installed at the lower end outside the tank body 1. A sewage discharge port 44 is provided on one side of the tank body 1 near the bottom. A drain port 46 is provided at the bottom of the tank body 1. Both the drain port 46 and the sewage discharge port 44 are located on the lower side of the inclined plane at the bottom of the tank body 1. The sewage discharge port 44 is opened or closed by a valve 45, and the drain port 46 is controlled to be opened or closed by a valve 47.

[0057] Among them, the sewage discharge mechanism 4 is used to treat and collect the flocculated sludge. After the sewage is flocculated, the telescopic rod 43 is used to drive the lifting column 42 to rise, so that the filter plate 41 rises to the position of the sewage discharge port 44, making there be a space between the filter plate 41 and the bottom of the tank body 1. The precipitated sludge is isolated above the filter plate 41 by the filter plate 41. Therefore, the water filtered by the filter plate 41 is below the filter plate 41. At this time, the valve 47 is opened, and the treated water is discharged through the drain port 46. After the drainage is completed, the sludge accumulates on the filter plate 41. Then the valve 45 is opened. Since the filter plate 41 is of an inclined structure, the sludge can be discharged through the sewage discharge port 44, completing the treatment of the sewage from the thermal power station.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal power plant wastewater environmental treatment equipment, comprising a tank (1), characterized in that: The tank body (1) has an opening at the top and an inclined bottom; An oil-water separation mechanism (2) is provided at the upper end of the tank body (1); A stirring mechanism (3) is provided in the middle of the tank body (1); The bottom of the tank body (1) is provided with a sewage discharge mechanism (4); The oil-water separation mechanism (2) comprises two collecting plates (21), and the two collecting plates (21) are controlled by a rotating mechanism (5) to rotate simultaneously on the surface of the sewage to collect the waste oil, and after collecting the waste oil, they are controlled to rise by a driving mechanism (6); An oil discharge port (22) is provided on one side of the upper end of the tank body (1), the oil discharge port (22) is connected to a collection box (23), the collection box (23) is fixed on the outside of the tank body (1), the oil discharge port (22) is sealed by a sealing block (24), the sealing block (24) is opened by a driving mechanism (6), and when the sealing block (24) is opened, the collection plate (21) rises simultaneously; The sewage discharge mechanism (4) comprises a filter plate (41) located at the bottom of the tank body (1); the filter plate (41) is arranged to be inclined, and the filter plate (41) is in contact with the bottom of the tank body (1); the filter plate (41) is driven to rise and fall by a telescopic rod (43); A sewage outlet (44) is provided on one side of the tank body (1) close to the bottom, and a water outlet (46) is provided on the bottom of the tank body (1). Both the water outlet (46) and the sewage outlet (44) are located on the lower side of the bottom slope of the tank body (1).

2. The environmental protection equipment for treating wastewater in a thermal power station according to claim 1, characterized in that: The rotating mechanism (5) comprises a mounting plate (51) located above the middle of the tank body (1), two rotating shafts (52) being rotatably mounted on the lower end of the mounting plate (51), the rotating shafts (52) being driven to rotate by a motor (53), one end of the two collecting plates (21) being fixedly connected to the lower ends of the two rotating shafts (52) respectively, and the end faces of the other ends are tangent to the inner wall of the tank body (1), the two rotating shafts (52) are both mounted with gears (54), and the two gears (54) are meshingly connected.

3. The thermal power plant wastewater environmental protection treatment equipment according to claim 1 is characterized by: A baffle (211) is provided on one side of the collecting plate (21); two collecting plates (21) are spliced ​​together to form a collecting trough (212); the bottom of the collecting trough (212) is inclined downward, and an opening is provided at one end of the collecting trough (212) close to the inner wall of the tank body (1); A sealing strip (213) is provided on one side of the collecting plate (21), and the two collecting plates (21) are sealed by the sealing strip (213) after being spliced.

4. The thermal power plant wastewater environmental protection treatment equipment according to claim 2 is characterized by: The driving mechanism (6) comprises a support frame (61) fixedly mounted on the upper end of the tank body (1), a second rotating shaft (62) being rotatably mounted on the upper end of the support frame (61), and the second rotating shaft (62) is driven to rotate by a second motor (63); The support frame (61) is connected to cylindrical rack 1 (64) and cylindrical rack 2 (65) at the top and bottom, and the rotating shaft (62) is provided with two gears (66), and the two gears (66) are respectively meshed with cylindrical rack 1 (64) and cylindrical rack 2 (65); The lower end of the cylindrical rack 1 (64) is fixedly connected to the mounting plate (51); A lifting frame (67) is provided at the lower end of the second cylindrical rack (65), telescopic frames (68) are provided on both sides of the lifting frame (67), a rotating drum (69) is sleeved on one end of the telescopic frame (68), and the rotating drum (69) is rotatably connected to the telescopic frame (68); Guide plates (241) are provided on both sides of the upper end of the sealing block (24), and a guide inclined surface (242) is provided on one side of the guide plate (241). When the second cylindrical rack (65) rises, the rotating drum (69) is tangent to the guide inclined surface (242).

5. The thermal power plant wastewater environmental protection treatment equipment according to claim 4 is characterized by: The telescopic frame (68) comprises a guide column (681), a disc (682) is provided at one end of the guide column (681), two telescopic columns (683) are provided at one end of the disc (682), a limit block (684) is provided at one end of the telescopic column (683), the telescopic frame (68) is slidably connected to both sides of the lifting frame (67) via the telescopic column (683), a second return spring (610) is sleeved on the outside of the telescopic column (683), and the telescopic frame (68) is returned to its original position via the second return spring (610) after being compressed into the lifting frame (67).

6. The environmental protection equipment for treating wastewater in a thermal power station according to claim 5, characterized in that: A limit plate (243) is provided at the upper end of the guide plate (241), and the upper end of the limit plate (243) is inclined outward, so that when the second cylindrical rack (65) descends, the limit plate (243) compresses the telescopic frame (68); A ball (611) is movably mounted on the outer end of the guide column (681), and when the second cylindrical rack (65) descends, the ball (611) is rollingly connected to the guide plate (241).

7. The environmental protection equipment for treating wastewater in a thermal power station according to claim 1, characterized in that: Two guide pillars (244) are provided on one side of the sealing block (24). The guide pillars (244) are slidably connected to the collection box (23). A return spring (25) is sleeved on the guide pillar (244). After the sealing block (24) is opened, it is returned to its original position by the return spring (25).

8. The environmental protection equipment for treating wastewater in a thermal power station according to claim 1, characterized in that: The stirring mechanism (3) comprises a fixing frame 1 (31) and a fixing frame 2 (32) fixed inside the tank body (1); a stirring frame (33) is rotatably mounted in the middle of the fixing frame 1 (31); a bevel gear 1 (34) is provided at the upper end of the stirring frame (33); a rotating shaft 3 (35) is rotatably mounted inside the fixing frame 2 (32); a bevel gear 2 (36) is provided at one end of the rotating shaft 3 (35); the bevel gear 2 (36) is meshingly connected with the bevel gear 1 (34); the rotating shaft 3 (35) is driven to rotate by a motor 3 (37); and the motor 3 (37) is fixedly mounted outside the tank body (1).

9. The environmental protection equipment for treating wastewater in a thermal power station according to claim 1, characterized in that: The sewage outlet (44) is opened or closed by valve one (45), and the drainage outlet (46) is opened or closed by valve two (47).

10. The environmental protection equipment for treating wastewater in a thermal power station according to claim 1, characterized in that: A lifting column (42) is provided at the lower end of the filter plate (41), and the lifting column (42) is movably connected to the bottom of the tank body (1) in an up-and-down manner. The lower end of the lifting column (42) is fixedly connected to the output end of a telescopic rod (43), and the telescopic rod (43) is fixedly mounted on the lower end of the outer side of the tank body (1).

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