Sewage intermediate treatment and purification device for pumped storage power station

Abstract

The invention provides a sewage intermediate treatment and purification device for a pumped storage power station, belongs to the technical field of sewage treatment and purification, and solves the technical problem of water pollution of the pumped storage power station. Comprising a transverse frame, a first filter screen and a second filter screen, supporting columns are vertically and fixedly connected to the two ends of the bottom of the transverse frame, the first filter screen is arranged in a gutter channel and arranged at the bottom of the transverse frame, the second filter screen is slidably connected to one side of the surface of a blocking plate, and a connecting frame is fixedly connected to the surface of the second filter screen; a sliding mechanism for sliding the connecting frame is arranged in the transverse frame, and a turnover mechanism for the connecting frame is arranged at the bottom of the transverse frame. In the back-and-forth sliding process of a connecting frame and a second filter screen, impurities on the water surface in the gutter channel can be fished, the water quality in the gutter channel is improved, and therefore the impurities in the connecting frame and the second filter screen can be automatically poured out, and the using effect of the device is improved; and meanwhile, the device is more convenient to use.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment and purification, and relates to a special film blowing machine for ground film, in particular to a sewage intermediate treatment and purification device for a pumped storage power station. Background Art

[0002] A pumped-storage power station is a power station that utilizes the peak-to-valley difference in electricity load to achieve energy storage and regulation through the process of pumping water and generating electricity. Its basic principle is to use the excess electricity in the power grid to pump water from low places to high reservoirs for storage when electricity consumption is low; and when electricity consumption is peak, the water flow drives the turbine to generate electricity, releasing the stored energy. This can effectively store excess electricity and balance the supply and demand of electricity. It can provide a large amount of electricity in a short period of time, adapt to the rapid changes in the grid load, and help balance the volatility of renewable energy such as wind and solar energy. Compared with other large-scale energy storage methods, pumped storage has relatively little environmental impact.

[0003] However, the construction of a pumped-storage power station requires a large investment and suitable terrain conditions. It is usually necessary to establish connections between high and low reservoirs in mountainous or hilly areas. In addition, the sustainable use of water resources also needs to be considered. After a long period of use, there will be a lot of fallen leaves or other impurities on the water surface of a pumped-storage power station, which may easily have a certain impact on some mechanized equipment installed inside the pumped-storage power station during use, and may even cause the risk of damage. Most of the existing impurities in pumped-storage power stations need to be salvaged manually, and in existing pumped-storage power stations, a filter net is set in the water to isolate the impurities in the water from the electrical equipment. However, after this method is used for a long time, a lot of impurities will adhere to the surface of the filter net, resulting in insufficient water flow, thereby affecting the normal operation of the pumped-storage power station, and requiring regular maintenance, which will waste human resources and affect the normal operation of the pumped-storage power station. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a sewage intermediate treatment and purification device for a pumped storage power station. The technical problem to be solved by the invention is: how to achieve efficient grinding and mixing of ground film masterbatch by a film blowing machine and to carry out quantitative and accurate delivery.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A sewage intermediate treatment and purification device for a pumped-storage power station comprises a horizontal frame, a first filter screen and a second filter screen, both ends of the bottom of the horizontal frame are vertically fixedly connected to support columns, a same water flow trough is arranged between the two support columns, sewage outlets are vertically penetrated through the surfaces of the two support columns, the bottoms of the two sewage outlets are inclined, guide plates are fixedly connected on both symmetrical sides of the surfaces of the two support columns, and the two guide plates are respectively arranged at the bottoms of the two sewage outlets; the first filter screen is arranged inside the water flow trough, the first filter screen is arranged at the bottom of the horizontal frame, a blocking plate is fixedly connected to the surface of the first filter screen, and the two ends of the blocking plate are respectively fixedly connected to the opposite sides of the inside of the water flow trough; the second filter screen is slidably connected to one side of the surface of the blocking plate, and a connecting frame is fixedly connected to the surface of the second filter screen, a sliding mechanism for sliding the connecting frame is provided inside the horizontal frame, and a flipping mechanism for the connecting frame is provided at the bottom of the horizontal frame.

[0006] The working principle of the present invention is: by sliding the connecting frame and the second filter screen back and forth, the connecting frame and the second filter screen will also be flipped, so as to facilitate the salvage of impurities on the water surface inside the water flow trough, thereby improving the water quality inside the water flow trough. At the same time, the setting of the two side panels will cause the moving box to slide upwards when sliding to the two ends of the water flow trough, so that the impurities inside the connecting frame and the second filter screen can be automatically poured out, thereby improving the use effect of the device and making the device more convenient to use.

[0007] The cam is an angular channel formed between a pair of camshafts and a pair of camshafts, and the camshafts are connected to each other with a ballasting motion to move the camshafts relative to the first frame.

[0008] The above structure is used to drive the waterproof motor. Through the connection between the worm and the worm wheel, the lead screw is driven to rotate, which causes the slider to slide horizontally inside the first slide groove.

[0009] The top end of the sliding column is fixedly connected to the first moving groove, and the second moving groove is horizontally penetrated through the interior of the moving box, and the second moving groove is horizontally slidably connected to the second rack, and the second rack is horizontally arranged, and the bottom end of the sliding column is fixedly connected to the center of the top of the second rack, and the four corners of the moving box are vertically slidably connected to the third rack, and the four third racks penetrate the interior of the moving box, and the bottom of the moving box is vertically fixedly connected to two fixing rods, and the bottom ends of the two fixing rods are respectively hinged on the two ends of the top of the connecting frame, and the bottom ends of the four third racks are hinged on the first pull rod, and the bottom ends of the four first pull rods are respectively hinged on the four corners of the top of the connecting frame.

[0010] The above structure is used to drive the moving box to slide horizontally through the connection between the fixed column and the sliding column, and then through the connection of the two fixed rods, the connecting frame and the second filter can slide horizontally at the same time.

[0011] The flipping mechanism includes a second gear, and the mobile box is internally connected to two rotating shafts, and the two rotating shafts are both horizontally arranged and arranged at the bottom of the second rack. There are four second gears, and the four second gears are respectively fixedly connected to the two ends of the two rotating shafts, and the four second gears are respectively meshed with four third racks. The mobile box is internally connected to two first gears for rotation, and the two first gears are respectively sleeved at the centers of the surfaces of the two rotating shafts, and the two first gears are arranged at the bottom of the second rack, and the two first gears are meshed with the second rack.

[0012] With the above structure, the two first gears can be rotated by sliding the second rack, and the four third racks can be slid up and down respectively by connecting the two rotating shafts and the four second gears, and the connecting frame and the second filter can be flipped by connecting the four first pull rods.

[0013] The movable box is slidably connected between the two side plates, and the surfaces of the two side plates are horizontally provided with a first transverse groove and a second transverse groove, the two first transverse grooves are respectively arranged at the tops of the two second transverse grooves, the two first transverse grooves have a first inclined groove at both ends, the two first inclined grooves are both inclined, the two second inclined grooves are both inclined, the second transverse groove and the two second inclined grooves are deeper than the first transverse groove and the two first inclined grooves, the two second rollers are respectively arranged at the bottoms of the two first rollers, the two first rollers are respectively slidably connected to the two first transverse grooves and the four first inclined grooves, the two second rollers are respectively slidably connected to the two second transverse grooves and the four second inclined grooves, the surface of the first filter screen is slidably connected to two cleaning rollers, the two cleaning rollers are fixedly connected to the same fixed shaft, the surface of the fixed shaft is rotatably sleeved with a connecting block, the top of the connecting block is intersected with a second pull rod, the bottom of the connecting frame is fixedly connected to a cross bar, and the top of the second pull rod is rotatably sleeved on the surface of the cross bar.

[0014] With the above structure, the two cleaning rollers can be driven to slide up and down by sliding the connecting frame horizontally under the connection of the second pull rod.

[0015] The water flow trough is vertically fixedly connected with slides on both opposite sides, the two slides are vertically provided with second slides on both opposite sides, and the two second slides are vertically provided with second limiting grooves on both symmetrical sides of the surfaces, the two cleaning rollers are rotatably connected with slides at one end away from each other, the two slides are respectively slidably connected to the inside of the two second slides, the two slides are rotatably connected to the third rollers on both symmetrical sides of the surfaces, and the multiple third rollers are respectively slidably connected to the inside of the four second limiting grooves, and the blocking plate surface is vertically fixedly connected with two first racks on one side close to the two cleaning rollers, and the two cleaning rollers are sleeved with external toothed rings at one end away from each other, and the two external toothed rings are respectively meshed with the two first racks.

[0016] With the above structure, the two cleaning rollers can be rotated by connecting the two first racks and the two outer gear rings, so as to facilitate cleaning of the surface of the first filter screen.

[0017] Compared with the prior art, the sewage intermediate treatment and purification device for a pumped storage power station of the present invention has the following advantages: 1. In the present invention, the connecting frame and the second filter screen are flipped over by sliding the connecting frame and the second filter screen back and forth, so as to facilitate the salvaging of impurities on the water surface inside the water trough, thereby improving the water quality inside the water trough. At the same time, the two side plates are arranged so that the moving box will slide upwards when sliding to the two ends of the water trough, so that the impurities inside the connecting frame and the second filter screen can be automatically poured out, thereby improving the use effect of the device and making the device more convenient to use.

[0018] 2. In the present invention, during use, under the connection of the second pull rod, the two cleaning rollers will be driven to slide up and down at the same time, and then through the cooperation of the two first racks and the two outer gear rings, the two cleaning rollers will rotate during the up and down sliding process, thereby producing a cleaning effect on the surface of the first filter screen, and effectively preventing the surface of the first filter screen from being blocked, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of a sewage intermediate treatment and purification device for a pumped storage power station of the present invention; Figure 2 It is a front view structural schematic diagram of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 3 It is a schematic diagram of a sliding mechanism of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 4 It is a partial structural schematic diagram of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 5 It is a cross-sectional view of the internal structure of a mobile box of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 6 It is a partial structural schematic diagram of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 7 It is a schematic diagram of the surface structure of a moving box and a side plate of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Figure 8 It is a front view structural schematic diagram of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Fig. 9 It is a schematic diagram of the surface structure of a cleaning roller of a sewage intermediate treatment and purification device for a pumped storage power station in the present invention; Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure at A.

[0020] In the figure, 1, water flow channel; 2, horizontal frame; 21, support column; 22, sewage outlet; 23, guide plate; 24, first slide; 25, first limit groove; 26, control compartment; 27, side plate; 271, first horizontal groove; 272, first inclined groove; 273, second horizontal groove; 274, second inclined groove; 3, blocking plate; 31, first filter screen; 32, first rack; 33, slideway; 34, second slide; 35, second limit groove; 4, slider; 41, limit block; 42, fixed column; 43, slide column; 44, first Second rack; 5. screw; 51. worm gear; 52. worm; 53. waterproof motor; 6. moving box; 61. first moving slot; 62. second moving slot; 63. first roller; 64. second roller; 7. connecting frame; 71. second filter; 72. fixing rod; 73. first pull rod; 74. cross bar; 8. third rack; 81. rotating shaft; 82. first gear; 83. second gear; 9. cleaning roller; 91. connecting block; 92. second pull rod; 93. slide plate; 94. third roller; 95. outer gear ring. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1-Figure 10 As shown, a sewage intermediate treatment and purification device for a pumped storage power station comprises a horizontal frame 2, a first filter screen 31 and a second filter screen 71, both ends of the bottom of the horizontal frame 2 are vertically fixedly connected with support columns 21, a same water trough 1 is arranged between the two support columns 21, sewage outlets 22 are vertically penetrated on the surfaces of the two support columns 21, the bottoms of the two sewage outlets 22 are inclined, guide plates 23 are fixedly connected on both sides of the symmetrical surfaces of the two support columns 21, and the two guide plates 23 are respectively arranged at the bottom of the two sewage outlets 22; the first filter screen 31 is arranged inside the water trough 1, the first filter screen 31 is arranged at the bottom of the horizontal frame 2, the surface of the first filter screen 31 is fixedly connected with a blocking plate 3, and the two ends of the blocking plate 3 are respectively fixedly connected to the opposite sides inside the water trough 1; the second filter screen 71 is slidably connected to one side of the surface of the blocking plate 3, the surface of the second filter screen 71 is fixedly connected with a connecting frame 7, a sliding mechanism for sliding the connecting frame 7 is provided inside the horizontal frame 2, and a flipping mechanism for the connecting frame 7 is provided at the bottom of the horizontal frame 2.

[0023] like Figure 1-Figure 3As shown, the sliding mechanism includes a slider 4, a first slide groove 24 is horizontally opened at the bottom of the cross frame 2, first limit grooves 25 are horizontally opened on opposite sides of the first slide groove 24, and control bins 26 are arranged at both ends of the cross frame 2. The slider 4 is horizontally slidably connected to the inside of the first slide groove 24, and the limit blocks 41 are fixedly connected to the two first limit grooves 25 on the symmetrical sides of the surface of the slider 4. The two limit blocks 41 are respectively slidably connected to the inside of the two first limit grooves 25, and the first slide groove 24 is rotatably connected with a screw rod 5, which is horizontally arranged, and the two ends of the screw rod 5 are respectively A rotatable sleeve is arranged inside the two control chambers 26, and the slider 4 is slidably sleeved on the outer surface of the screw rod 5. The slider 4 cooperates with the screw rod 5. A worm wheel 51 is rotatably connected inside one of the control chambers 26, and the worm wheel 51 is sleeved on one end of the screw rod 5. A worm 52 is rotatably connected inside one of the control chambers 26. The worm 52 is vertically arranged, and the worm 52 cooperates with the worm wheel 51. The top of the worm 52 is rotatably sleeved on the top of the cross frame 2. A waterproof motor 53 is installed on the top of the cross frame 2, and the output end of the waterproof motor 53 is fixedly connected to the top of the worm 52.

[0024] like Figure 1 , Figure 4 and Figure 5 As shown, the bottom of the slider 4 is vertically fixedly connected with a fixed column 42, and both sides of the bottom of the horizontal frame 2 are vertically fixedly connected with side plates 27. The fixed column 42 is arranged between the two side plates 27. The surface of the fixed column 42 is vertically slidably sleeved with a sliding column 43. The bottom of the horizontal frame 2 is slidably connected with a moving box 6. The top of the moving box 6 is horizontally provided with a first moving groove 61. The bottom end of the sliding column 43 is horizontally slidably connected to the inside of the first moving groove 61. The inside of the moving box 6 is horizontally penetrated with a second moving groove 62. The inside of the second moving groove 62 is horizontally slidably connected There is a second rack 44, which is horizontally arranged. The bottom end of the sliding column 43 is fixedly connected to the top center of the second rack 44. The four corners inside the mobile box 6 are vertically slidably connected to the third rack 8. The four third racks 8 all run through the inside of the mobile box 6. The bottom of the mobile box 6 is vertically fixedly connected to two fixed rods 72. The bottom ends of the two fixed rods 72 are respectively hinged to the two ends of the top of the connecting frame 7. The bottom ends of the four third racks 8 are hinged to the first pull rods 73. The bottom ends of the four first pull rods 73 are respectively hinged to the four corners of the top of the connecting frame 7.

[0025] like Figure 4-Figure 7As shown, the flipping mechanism includes a second gear 83, and the mobile box 6 is internally rotatably connected to two rotating shafts 81, and the two rotating shafts 81 are both horizontally arranged, and the two rotating shafts 81 are both arranged at the bottom of the second rack 44. There are four second gears 83, and the four second gears 83 are respectively fixedly connected to the two ends of the two rotating shafts 81, and the four second gears 83 are respectively meshed with the four third racks 8, and the mobile box 6 is internally rotatably connected to two first gears 82, and the two first gears 82 are respectively sleeved on the centers of the surfaces of the two rotating shafts 81, and the two first gears 82 are both arranged at the bottom of the second rack 44, and the two first gears 82 are both meshed with the second rack 44.

[0026] like Figure 4 and Figure 7 As shown, the moving box 6 is slidably connected between the two side plates 27, and the surfaces of the two side plates 27 are horizontally provided with a first transverse groove 271 and a second transverse groove 273, the two first transverse grooves 271 are respectively arranged at the top of the two second transverse grooves 273, and the two first transverse grooves 271 are provided with a first inclined groove 272 at both ends, and the two first inclined grooves 272 are both inclined, and the two second transverse grooves 273 are provided with a second inclined groove 274 at both ends, and the two second inclined grooves 274 are both inclined, and the depth of the second transverse groove 273 and the two second inclined grooves 274 is greater than that of the first transverse groove 271 and the two first inclined grooves 272, and the first rollers 63 are rotated symmetrically on both sides of the surface of the moving box 6. And the second roller 64, the two second rollers 64 are respectively arranged at the bottom of the two first rollers 63, the two first rollers 63 are respectively slidably connected to the two first transverse grooves 271 and the four first inclined grooves 272, the two second rollers 64 are respectively slidably connected to the two second transverse grooves 273 and the four second inclined grooves 274, the surface of the first filter 31 is slidably connected to two cleaning rollers 9, the two cleaning rollers 9 are fixedly connected with the same fixed shaft, the surface of the fixed shaft is rotatably sleeved with a connecting block 91, the top of the connecting block 91 is hinged with a second pull rod 92, the bottom of the connecting frame 7 is fixedly connected to a cross bar 74, and the top of the second pull rod 92 is rotatably sleeved on the surface of the cross bar 74.

[0027] like Figure 8-Figure 10 As shown, slideways 33 are vertically fixedly connected on both opposite sides inside the water flow trough 1, second slide grooves 34 are vertically opened on both opposite sides of the two slides 33, second limiting grooves 35 are vertically opened on both symmetrical sides of the surfaces of the two second slide grooves 34, two cleaning rollers 9 are rotatably connected with slide plates 93 at one end away from each other, the two slide plates 93 are respectively slidably connected to the inside of the two second slide grooves 34, third rollers 94 are rotatably connected on both symmetrical sides of the surfaces of the two slide plates 93, and multiple third rollers 94 are respectively slidably connected to the inside of the four second limiting grooves 35, two first racks 32 are vertically fixedly connected to the side of the surface of the blocking plate 3 close to the two cleaning rollers 9, and external toothed rings 95 are sleeved on the ends of the two cleaning rollers 9 away from each other, and the two external toothed rings 95 are respectively meshed with the two first racks 32.

[0028] The working principle of the present invention is as follows: in actual use, the worm 52 is driven to rotate by the waterproof motor 53, and under the connection with the worm wheel 51, the screw rod 5 is rotated to drive the slider 4 to slide horizontally, and under the connection between the fixed column 42 and the sliding column 43, the second rack 44 slides to one end inside the sewage outlet 22 6, and then drives the moving box 6 to slide together. At this time, by sliding the second rack 44, the two first gears 82 are set, and the two rotating shafts 81 inside the moving box 6 are rotated. Under the connection of the four second gears 83, two of the third racks 8 slide upward, and the other two third racks 8 slide downward. Under the connection of the four first pull rods 73, the connecting frame 7 is tilted, so that impurities on the water surface can be salvaged. When the moving box 6 and the connecting frame 7 slide to one end, By setting the two side plates 27, the first roller 63 and the two second rollers 64 at both ends of the surface of the moving box 6 are respectively restricted by the first transverse groove 271 and the second transverse groove 273, and slide into the two first inclined grooves 272 and the two second inclined grooves 274, so as to lift the connecting frame 7 and the second filter screen 71. Subsequently, the dirt salvaged from the surface of the connecting frame 7 and the second filter screen 71 will be poured out through the sewage outlet 22 on the surface of one of the support columns 21, and then slide out through the guide plate 23. In addition, in the process of sliding the connecting frame 7 back and forth, under the connection of the second pull rod 92, the two cleaning rollers 9 will also slide up and down. At the same time, under the restriction of the two first racks 32, the two cleaning rollers 9 will be moved by the two outer toothed rings 95, so as to clean the dirt on the surface of the first filter screen 31.

[0029] In summary, in the present invention, the connecting frame 7 and the second filter screen 71 are flipped over by sliding the connecting frame 7 and the second filter screen 71 back and forth, so as to facilitate the salvage of impurities on the water surface inside the water trough 1, thereby improving the water quality inside the water trough 1. At the same time, the setting of the two side plates 27 will cause the movable box 6 to slide upward during the process of sliding to the two ends of the water trough 1, so that the impurities inside the connecting frame 7 and the second filter screen 71 can be automatically poured out, thereby improving the use effect of the device and making the device more convenient to use. At the same time, under the connection of the second pull rod 92, the two cleaning rollers 9 will be driven to slide up and down at the same time, and then through the mutual cooperation of the two first racks 32 and the two outer tooth rings 95, the two cleaning rollers 9 will rotate during the up and down sliding process, thereby producing a cleaning effect on the surface of the first filter screen 31, and can effectively prevent the surface of the first filter screen 31 from being blocked, thereby improving the use effect of the device.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A sewage intermediate treatment and purification device for a pumped storage power station, comprising a horizontal frame (2), a first filter screen (31) and a second filter screen (71), characterized in that: Both ends of the bottom of the horizontal frame (2) are vertically fixedly connected to support columns (21), a common water flow channel (1) is arranged between the two support columns (21), sewage outlets (22) are vertically penetrated through the surfaces of the two support columns (21), the bottoms of the two sewage outlets (22) are inclined, and guide plates (23) are fixedly connected to the symmetrical sides of the surfaces of the two support columns (21), and the two guide plates (23) are respectively arranged at the bottoms of the two sewage outlets (22); The first filter screen (31) is arranged inside the water trough (1), the first filter screen (31) is arranged at the bottom of the horizontal frame (2), a blocking plate (3) is fixedly connected to the surface of the first filter screen (31), and two ends of the blocking plate (3) are respectively fixedly connected to opposite sides inside the water trough (1); The second filter screen (71) is slidably connected to one side of the surface of the blocking plate (3); a connection frame (7) is fixedly connected to the surface of the second filter screen (71); a sliding mechanism for sliding the connection frame (7) is provided inside the cross frame (2); and a flipping mechanism for the connection frame (7) is provided at the bottom of the cross frame (2).

2. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 1 is characterized in that: The sliding mechanism comprises a slider (4), a first sliding groove (24) is horizontally opened at the bottom of the cross frame (2), first limit grooves (25) are horizontally opened on opposite sides inside the first sliding groove (24), control bins (26) are arranged at both ends inside the cross frame (2), the slider (4) is horizontally slidably connected inside the first sliding groove (24), limit blocks (41) are fixedly connected on both sides of the surface of the slider (4), and two limit blocks (41) are respectively slidably connected inside the two first limit grooves (25).

3. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 2 is characterized in that: A lead screw (5) is rotatably connected inside the first slide groove (24), the lead screw (5) is arranged horizontally, and the two ends of the lead screw (5) are rotatably sleeved inside the two control chambers (26), respectively, the slider (4) is slidably sleeved on the outer surface of the lead screw (5), the slider (4) cooperates with the lead screw (5), one of the control chambers (26) is rotatably connected inside a worm wheel (51), the worm wheel (51) is sleeved on one end of the lead screw (5), one of the control chambers (26) is rotatably connected inside a worm (52), the worm (52) is arranged vertically, the worm (52) cooperates with the worm wheel (51), the top of the worm (52) is rotatably sleeved on the top of the cross frame (2), the top of the cross frame (2) is installed with a waterproof motor (53), the output end of the waterproof motor (53) is fixedly connected to the top of the worm (52).

4. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 3 is characterized in that: The bottom of the slider (4) is vertically fixedly connected with a fixing column (42), and both sides of the bottom of the cross frame (2) are vertically fixedly connected with side plates (27). The fixing column (42) is arranged between the two side plates (27). The surface of the fixing column (42) is vertically slidably sleeved with a sliding column (43). The bottom of the cross frame (2) is slidably connected with a moving box (6). The top of the moving box (6) is horizontally provided with a first moving groove (61), and the bottom end of the sliding column (43) is horizontally slidably connected to the inside of the first moving groove (61).

5. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 4 is characterized in that: A second moving groove (62) is horizontally penetrated inside the moving box (6), a second rack (44) is horizontally slidably connected inside the second moving groove (62), the second rack (44) is horizontally arranged, the bottom end of the sliding column (43) is fixedly connected to the top center of the second rack (44), and the four corners inside the moving box (6) are vertically slidably connected to third racks (8), and the four third racks (8) all penetrate the inside of the moving box (6).

6. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 5, characterized in that: The bottom of the moving box (6) is vertically fixedly connected to two fixing rods (72), the bottom ends of the two fixing rods (72) are respectively connected to the two ends of the top of the connecting frame (7), the bottom ends of the four third racks (8) are all connected to the first pull rods (73), and the bottom ends of the four first pull rods (73) are respectively hinged to the four corners of the top of the connecting frame (7).

7. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 6, characterized in that: The flip mechanism comprises a second gear (83); the mobile box (6) is internally rotatably connected to two rotating shafts (81); the two rotating shafts (81) are both arranged horizontally; the two rotating shafts (81) are both arranged at the bottom of the second rack (44); four second gears (83) are provided; the four second gears (83) are respectively fixedly connected to the two ends of the two rotating shafts (81); the four second gears (83) are respectively meshed with four third racks (8); the mobile box (6) is internally rotatably connected to two first gears (82); the two first gears (82) are respectively sleeved at the centers of the surfaces of the two rotating shafts (81); the two first gears (82) are both arranged at the bottom of the second rack (44); the two first gears (82) are both meshed with the second rack (44).

8. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 7, characterized in that: The moving box (6) is slidably connected between the two side plates (27); the surfaces of the two side plates (27) are horizontally provided with a first transverse groove (271) and a second transverse groove (273); the two first transverse grooves (271) are respectively arranged at the tops of the two second transverse grooves (273); both ends of the two first transverse grooves (271) are provided with a first inclined groove (272); the two first inclined grooves (272) are arranged in an inclined manner; both ends of the two second transverse grooves (273) are provided with a second inclined groove (274); the two second inclined grooves (274) are arranged in an inclined manner; the second transverse groove (273) and the two second inclined grooves (274) are deeper than the first transverse groove (271) and the two first inclined grooves (272).

9. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 8, characterized in that: The first roller (63) and the second roller (64) are respectively rotated on two symmetrical sides of the surface of the moving box (6); the two second rollers (64) are respectively arranged at the bottom of the two first rollers (63); the two first rollers (63) are respectively slidably connected to the inside of the two first transverse grooves (271) and the four first inclined grooves (272); the two second rollers (64) are respectively slidably connected to the inside of the two second transverse grooves (273) and the four second inclined grooves (274); the surface of the first filter screen (31) is slidably connected to two cleaning rollers (9); the two cleaning rollers (9) are fixedly connected to the same fixed shaft; a connecting block (91) is rotatably sleeved on the surface of the fixed shaft; a second pull rod (92) is hinged on the top of the connecting block (91); a cross bar (74) is fixedly connected to the bottom of the connecting frame (7); the top of the second pull rod (92) is rotatably sleeved on the surface of the cross bar (74).

10. The sewage intermediate treatment and purification device for a pumped storage power station according to claim 9, characterized in that: The water flow trough (1) is vertically fixedly connected with slideways (33) on both opposite sides inside, and second slideways (34) are vertically opened on both opposite sides of the two slideways (33). Second limiting grooves (35) are vertically opened on both symmetrical sides of the surfaces of the two second slideways (34). The two cleaning rollers (9) are rotatably connected with slide plates (93) at one end away from each other. The two slide plates (93) are respectively slidably connected to the inside of the two second slide grooves (34). The two symmetrical sides of the surfaces of the two slide plates (93) are rotatably connected with third rollers (94). The plurality of third rollers (94) are respectively slidably connected to the inside of the four second limiting grooves (35). Two first racks (32) are vertically fixedly connected to the side of the surface of the blocking plate (3) close to the two cleaning rollers (9). The two cleaning rollers (9) are sleeved with external toothed rings (95) at one end away from each other. The two external toothed rings (95) are respectively meshed with the two first racks (32).

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