Filtering device for sewage treatment of hydropower station

Abstract

The utility model discloses a hydropower station sewage treatment filtering device which comprises a filtering box, the inner wall of the filtering box is fixedly connected with a filtering plate, and the top of the right side of the filtering box is fixedly connected with a rotating mechanism. The electric cylinder is started, the electric cylinder drives the sliding block to move backwards on the sliding way, the sliding block drives the outer side toothed plate to move towards the side away from the water pump, when the toothed plate makes contact with the gear, the toothed plate pushes the gear to rotate, the gear drives the inner rotating cylinder to rotate, and the rotating cylinder drives the front side of the rotating plate to rotate towards the side close to the electric cylinder; the rear side of the rotating plate rotates towards one side far away from the electric cylinder, when the clean filter screen at the top of the rotating plate replaces the blocked filter screen at the bottom, the electric cylinder stops moving, and the filter screen can be directly replaced by the filtering device through the rotating mechanism; the blocked filter screen of the filtering device can be directly replaced, so that the use convenience of the filtering device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a filtration device for wastewater treatment in hydropower stations. Background Technology

[0002] Most hydropower stations are built on rivers, and the river water itself carries a large amount of silt and suspended solids. During the water intake process, these silt and suspended solids will enter the hydropower station system with the water flow. If there are no effective pretreatment measures at the water intake, these silt and suspended solids will become part of the sewage. Especially during the flood season, the silt content in the river water will increase sharply, and the amount of silt entering the sewage system of the hydropower station will also increase accordingly.

[0003] Floating debris such as branches, leaves, and weeds in rivers may be carried into the intake of hydroelectric power stations. If pretreatment facilities such as trash racks are not properly maintained, or during heavy rains or floods, large amounts of floating debris can break through the trash racks and enter the water system inside the hydroelectric power station, eventually mixing with the wastewater. In this case, filtration is necessary to remove the wastewater and debris. Common filtration methods include: screens and sand filters.

[0004] A screen is typically composed of a set of parallel metal bars or a mesh. Its principle is to physically intercept larger suspended solids in sewage, such as branches, leaves, and large pieces of garbage, by blocking them from entering the screen. Coarse screens have a larger bar spacing, generally between 10 and 50 mm, and are mainly used to intercept large debris. Fine screens have a smaller bar spacing, mostly between 1 and 10 mm, and are able to intercept relatively smaller suspended solids.

[0005] Sand filter; The interior of a sand filter is filled with sand particles of different sizes, generally in layers from coarse to fine; When sewage flows from top to bottom through the sand layer, the suspended particles are adsorbed and trapped by the sand particles.

[0006] In a gravity sand filter, wastewater slowly passes through the sand filter layer by gravity. Smaller particles are trapped in the pores between the sand particles, thus filtration and purification of the wastewater.

[0007] In the prior art, patent publication number CN215232490U discloses a sewage filtration device for hydropower stations, including a filter box. An inlet pipe is installed on one side of the filter box, and a water pump is installed at one end of the inlet pipe. Three scrapers are installed inside the filter box, and connecting rods are installed on both sides of the top of each scraper. The tops of several connecting rods are fixedly connected to the bottom of a lifting plate. An electric telescopic rod is installed in the middle of the top of the lifting plate, and support frames are installed on both sides of the electric telescopic rod. When the filter screen needs cleaning, the piston rod of the electric telescopic rod pushes the lifting plate downwards. The lifting plate pushes several connecting rods at its bottom downwards as well. At this time, the connecting rods push the three scrapers at their bottom to scrape the sludge off the filter screen into the sludge recovery box. Thus, the sludge on the filter screen can be removed without disassembling the filter screen. This sewage filtration device for hydropower stations has a novel structure, is convenient for cleaning the filter screen, and has good practicality.

[0008] The existing technical solutions mentioned above have the following drawbacks: the filter device pushes the lifting plate downward by the piston rod of the electric telescopic rod to scrape the garbage off the mesh, but it can only scrape off the surface of the mesh. If the sludge in the water enters the filter device through the inlet and then clogs the filter screen, the sludge blockage will slow down the filtration efficiency. If the filter device cannot remove the blockage of sludge, it will need to be manually removed, which greatly reduces the efficiency of the filter device. Utility Model Content

[0009] To address the problems mentioned in the background art, the purpose of this utility model is to provide a filtration device for sewage treatment in hydropower stations, which has the advantage of automatic filter screen replacement. This solves the problem that while the filter device uses an electric telescopic rod to push the lifting plate downward to scrape garbage off the mesh, it can only scrape the surface of the mesh. If sludge in the water enters the filter device through the inlet and clogs the filter screen, the prolonged sludge blockage will slow down the filtration efficiency. The filter device cannot remove the blocked sludge, so manual cleaning is required, which greatly reduces the efficiency of the filter device.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for sewage treatment in a hydropower station, comprising a filter box, a filter plate fixedly connected to the inner wall of the filter box, a water purification agent inlet fixedly connected to the right side of the front top of the filter box, a repair port fixedly connected to the right side of the rear top of the filter box, a water pump fixedly connected to the bottom of the front side of the filter box, a water pipe connected to the output end of the water pump, the side of the water pipe away from the water pump extending to the front top of the filter box, L-shaped support plates fixedly connected to both sides of the bottom of the filter box, the top of the front L-shaped support plate fixedly connected to the bottom of the water pump, a water outlet fixedly connected to the left side of the bottom of the filter box, and a rotating mechanism fixedly connected to the top of the right side of the filter box.

[0011] In a preferred embodiment of this invention, the rotating mechanism includes an electric cylinder. The surface of the electric cylinder is fixedly connected to the right side of the front top of the filter box. A slider is fixedly connected to the output end of the electric cylinder. A slide rail is movably connected to the left side of the slider. The left side of the slide rail is fixedly connected to the right side of the top of the filter box. A toothed plate is fixedly connected to the right side of the bottom of the slider. A gear is provided on the outer side of the toothed plate. A rotating cylinder is fixedly connected to the center of the gear. The rotating cylinder penetrates to the inner wall of the filter box and is fixedly connected to a rotating plate. Filter screens are movably connected to the top and bottom of the rotating plate. A replacement port is provided on the right side of the top of the filter box.

[0012] As a preferred embodiment of this invention, a limiting sleeve is fixedly connected to the right side of the rotating cylinder, and the limiting sleeve is located at the top of the water pump.

[0013] As a preferred embodiment of this invention, a pull ring is fixedly connected to the right side of the replacement port, and the pull ring is located at the top of the gear.

[0014] As a preferred embodiment of this utility model, the top of the L-shaped support plate is fixedly connected with three triangular blocks, which are distributed at equal intervals.

[0015] As a preferred embodiment of this invention, a fixing block is fixedly connected to the front side of the electric cylinder, and the bottom and left side of the fixing block are fixedly connected to the front side of the top of the filter box.

[0016] As a preferred embodiment of this invention, a fixing sleeve is fixedly connected to the surface of the water pipe, and the rear side of the fixing sleeve is fixedly connected to the front side of the top of the filter box.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model utilizes an electric cylinder to drive a slider to move backward on a slide rail. The slider then moves the outer toothed plate away from the water pump. When the toothed plate contacts the gear, it pushes the gear to rotate. The gear then rotates the inner rotating cylinder, causing the front of the rotating plate to rotate towards the electric cylinder and the rear to rotate away from the electric cylinder. When the clean filter screen at the top of the rotating plate replaces the clogged filter screen at the bottom, the electric cylinder stops moving. The replacement port is opened to remove the clogged filter screen and replace it with a clean one, facilitating filter screen replacement in the next rotation mechanism. The filter device can directly replace the filter screen through the rotation mechanism. If sludge in the water enters the filter device through the inlet and clogs the filter screen, prolonged sludge blockage will slow down the filtration efficiency. The filter device can directly replace the clogged filter screen without manual cleaning, greatly improving the efficiency and convenience of the filter device.

[0019] 2. By setting a rotating mechanism, this utility model can automatically replace the filter screen inside the filter box, avoiding the filter screen from being filled with silt and impurities, which would prevent the filter box from filtering water and improve the ease of use of the filter box. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the filter box of this utility model;

[0022] Figure 3 This is a perspective view of the water purification agent outlet of this utility model;

[0023] Figure 4 This is a perspective view of the filter screen of this utility model;

[0024] Figure 5 This is a perspective view of the rotating plate of this utility model;

[0025] Figure 6 This is a perspective view of the gear of this utility model.

[0026] In the diagram: 1. Filter box; 2. Filter plate; 3. Water purifier inlet; 4. Repair port; 5. Water pump; 6. Water pipe; 7. L-shaped support plate; 8. Water outlet; 9. Rotating mechanism; 91. Electric cylinder; 92. Slider; 93. Slide rail; 94. Gear plate; 95. Gear; 96. Rotating cylinder; 97. Rotating plate; 98. Filter screen; 99. Replacement port; 10. Limiting sleeve; 11. Pull ring; 12. Triangular block; 13. Fixing block; 14. Fixing sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 6As shown, the present invention provides a filtration device for sewage treatment in a hydropower station, comprising a filter box 1, a filter plate 2 fixedly connected to the inner wall of the filter box 1, a water purification agent port 3 fixedly connected to the right side of the front top of the filter box 1, a repair port 4 fixedly connected to the right side of the rear top of the filter box 1, a water pump 5 fixedly connected to the bottom of the front side of the filter box 1, a water pipe 6 connected to the output end of the water pump 5, the side of the water pipe 6 away from the water pump 5 extending to the front top of the filter box 1, L-shaped support plates 7 fixedly connected to both sides of the bottom of the filter box 1, the top of the front L-shaped support plate 7 fixedly connected to the bottom of the water pump 5, a water outlet 8 fixedly connected to the left side of the bottom of the filter box 1, and a rotating mechanism 9 fixedly connected to the top of the right side of the filter box 1.

[0029] refer to Figure 5 The rotating mechanism 9 includes an electric cylinder 91. The surface of the electric cylinder 91 is fixedly connected to the right side of the front top of the filter box 1. The output end of the electric cylinder 91 is fixedly connected to a slider 92. The left side of the slider 92 is movably connected to a slide rail 93. The left side of the slide rail 93 is fixedly connected to the right side of the top of the filter box 1. The right side of the bottom of the slider 92 is fixedly connected to a toothed plate 94. A gear 95 is provided on the outer side of the toothed plate 94. A rotating cylinder 96 is fixedly connected to the center of the gear 95. The rotating cylinder 96 penetrates to the inner wall of the filter box 1 and is fixedly connected to a rotating plate 97. Filter screens 98 are movably connected to the top and bottom of the rotating plate 97. A replacement port 99 is opened on the right side of the top of the filter box 1.

[0030] As a technical optimization of this utility model, by setting a rotating mechanism 9, the filter screen 98 inside the filter box 1 can be automatically replaced, which avoids the filter screen 98 being filled with silt and impurities, causing the filter box 1 to fail to filter water, thus improving the ease of use of the filter box 1.

[0031] refer to Figure 6 A limiting sleeve 10 is fixedly connected to the right side of the rotating cylinder 96, and the limiting sleeve 10 is located at the top of the water pump 5.

[0032] As a technical optimization of this utility model, by setting the limiting sleeve 10, the rotating cylinder 96 can be limited and fixed, avoiding the long-term rotation of the rotating cylinder 96, which would cause gaps between the rotating cylinder 96 and the gear 95, thus improving the safety and service life of the rotating cylinder 96.

[0033] refer to Figure 3 A pull ring 11 is fixedly connected to the right side of the replacement port 99, and the pull ring 11 is located on the top of the gear 95.

[0034] As a technical optimization of this utility model, by setting a pull ring 11, the replacement port 99 can be lifted and disassembled, avoiding inconvenience when the filter screen 98 needs to be replaced, which would prevent the filter screen 98 from being replaced in time, thus improving the convenience of the replacement port 99.

[0035] refer to Figure 1 The top of the L-shaped support plate 7 is fixedly connected with three triangular blocks 12, which are distributed at equal distances.

[0036] As a technical optimization of this utility model, by setting the triangular block 12, the L-shaped support plate 7 can be stably reinforced, avoiding excessive weight on the top of the L-shaped support plate 7, which would cause the L-shaped support plate 7 to bend and deform, making the filter device unstable, and improving the service life of the L-shaped support plate 7.

[0037] refer to Figure 1 A fixing block 13 is fixedly connected to the front side of the electric cylinder 91. The bottom and left side of the fixing block 13 are fixedly connected to the front side of the top of the filter box 1.

[0038] As a technical optimization of this utility model, by setting the fixing block 13, the electric cylinder 91 can be stably reinforced, avoiding the electric cylinder 91 from moving for a long time without a fixed place on the front, which would cause the electric cylinder 91 to shift on the filter box 1, thus improving the safety and stability of the electric cylinder 91.

[0039] refer to Figure 3 A fixing sleeve 14 is fixedly connected to the surface of the water pipe 6, and the rear side of the fixing sleeve 14 is fixedly connected to the front side of the top of the filter box 1.

[0040] As a technical optimization of this utility model, by setting a fixing sleeve 14, the water pipe 6 can be fixed, avoiding the water pipe 6 from being suspended in the air without a fixed place during long-term water transportation, which would cause gaps between the water pipe 6 and the filter box 1, thus improving the stability of the water pipe 6.

[0041] The working principle and usage process of this utility model are as follows: When the filter box 1 has finished filtering the water source, and the internal filter screen 98 is clogged and cannot be cleaned, the electric cylinder 91 is activated. The electric cylinder 91 drives the slider 92 to move backward on the slide rail 93. The slider 92 drives the outer toothed plate 94 to move away from the water pump 5. When the toothed plate 94 contacts the gear 95, the toothed plate 94 pushes the gear 95 to rotate. The gear 95 drives the internal rotating cylinder 96 to rotate. The rotating cylinder 96 drives the front side of the rotating plate 97 to rotate towards the electric cylinder 91, and the rear side to rotate away from the electric cylinder 91. When the clean filter screen 98 at the top of the rotating plate 97 replaces the clogged filter screen 98 at the bottom, the electric cylinder 91 stops moving. The replacement port 99 is opened to remove the clogged filter screen 98 and replace it with a clean filter screen 98, making it convenient for the next replacement of the filter screen 98 by the rotating mechanism 9.

[0042] In summary, the filtration device for the wastewater treatment of this hydropower station, through the coordinated use of filter box 1, filter plate 2, water purification agent inlet 3, repair port 4, water pump 5, water pipe 6, L-shaped support plate 7, outlet 8, and rotating mechanism 9, solves the problem that while the filter device uses the piston rod of the electric telescopic rod to push the lifting plate downward to scrape garbage from the mesh, it can only scrape up to the surface of the mesh. If sludge in the water enters the filter device through the inlet and clogs the filter screen, the prolonged sludge blockage will slow down the filtration efficiency. The filter device cannot remove the blocked sludge, so manual cleaning is required, which greatly reduces the efficiency of the filter device.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for treating wastewater in a hydropower station, comprising a filter box (1), characterized in that: A filter plate (2) is fixedly connected to the inner wall of the filter box (1). A water purification agent port (3) is fixedly connected to the right side of the front top of the filter box (1). A repair port (4) is fixedly connected to the right side of the rear top of the filter box (1). A water pump (5) is fixedly connected to the bottom of the front side of the filter box (1). A water pipe (6) is connected to the output end of the water pump (5). The side of the water pipe (6) away from the water pump (5) extends to the front top of the filter box (1). L-shaped support plates (7) are fixedly connected to both sides of the bottom of the filter box (1). The top of the front L-shaped support plate (7) is fixedly connected to the bottom of the water pump (5). A water outlet (8) is fixedly connected to the left side of the bottom of the filter box (1). A rotating mechanism (9) is fixedly connected to the top right side of the filter box (1). The rotating mechanism (9) includes... An electric cylinder (91) is fixedly connected to the right side of the front top of the filter box (1). A slider (92) is fixedly connected to the output end of the electric cylinder (91). A slide rail (93) is movably connected to the left side of the slider (92). The left side of the slide rail (93) is fixedly connected to the right side of the top of the filter box (1). A toothed plate (94) is fixedly connected to the right side of the bottom of the slider (92). A gear (95) is provided on the outer side of the toothed plate (94). A rotating cylinder (96) is fixedly connected to the center of the gear (95). The rotating cylinder (96) penetrates to the inner wall of the filter box (1) and is fixedly connected to a rotating plate (97). A filter screen (98) is movably connected to the top and bottom of the rotating plate (97). A replacement port (99) is opened on the right side of the top of the filter box (1).

2. The filtration device for treating wastewater in a hydropower station according to claim 1, characterized in that: A limiting sleeve (10) is fixedly connected to the right side of the rotating cylinder (96), and the limiting sleeve (10) is located at the top of the water pump (5).

3. The filtration device for treating wastewater in a hydropower station according to claim 1, characterized in that: A pull ring (11) is fixedly connected to the right side of the replacement port (99), and the pull ring (11) is located on the top of the gear (95).

4. The filtration device for treating wastewater in a hydropower station according to claim 1, characterized in that: The top of the L-shaped support plate (7) is fixedly connected with a triangular block (12), and there are three triangular blocks (12) in total, and the three triangular blocks (12) are distributed at equal distances.

5. A filtration device for treating wastewater in a hydropower station according to claim 1, characterized in that: A fixing block (13) is fixedly connected to the front side of the electric cylinder (91), and the bottom and left side of the fixing block (13) are fixedly connected to the front side of the top of the filter box (1).

6. A filtration device for treating wastewater in a hydropower station according to claim 1, characterized in that: The surface of the water pipe (6) is fixedly connected to a fixing sleeve (14), and the rear side of the fixing sleeve (14) is fixedly connected to the front side of the top of the filter box (1).

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