Sediment filtering and cleaning equipment for water conservancy project

Abstract

The sediment filtering and cleaning equipment comprises a water retaining wall arranged in a river channel, a water passing opening is formed in the lower portion of the side surface of the water retaining wall, a flashboard groove is formed in the lower surface of the inner side of the water passing opening, and a flashboard is arranged in the flashboard groove in an up-down sliding mode; a filter plate groove is further formed in the lower surface of the inner side of the water passing opening, a filter plate is arranged in the filter plate groove in an up-down sliding mode, the gate plate is arranged on the upstream side of the filter plate, and a silt area is arranged between the gate plate and the filter plate. The retention wall is arranged in the river channel, the filter plate arranged in the water passing opening of the retention wall is used for filtering silt, the silt entering the downstream, especially the narrow river channel of the downstream is reduced, and therefore the problems that the flood discharge capacity is reduced, and hydraulic facilities are blocked due to silt deposition, riverbed rising and the like are solved; the navigation capability of a river channel is ensured; and safe operation of water conservancy facilities is ensured.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a sediment filtration and cleaning device for water conservancy projects. Background Technology

[0002] In water conservancy projects, river sediment filtration and dredging are crucial for maintaining navigation capacity and ensuring the safe operation of water conservancy facilities. If sediment carried by river water accumulates in the riverbed, it not only reduces flood control capacity and threatens dike safety, but may also clog hydraulic structures (such as hydropower stations and pumping stations), affecting water resource utilization efficiency. Therefore, we propose a sediment filtration and dredging device for water conservancy projects. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a silt filtration and cleaning device for water conservancy projects. The device filters silt through a filter plate, reducing the amount of silt entering the downstream, especially in narrower river channels, thereby avoiding problems such as reduced flood discharge capacity and blockage of hydraulic facilities caused by siltation and riverbed elevation. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sediment filtration and cleaning device for water conservancy projects, comprising a water-retaining wall installed in a river channel, a water inlet being provided on the lower part of the side surface of the water-retaining wall, a gate groove being provided on the lower inner surface of the water inlet, and a gate being slidably installed in the gate groove; a filter plate groove being provided on the lower inner surface of the water inlet, and a filter plate being slidably installed in the filter plate groove, the gate being installed on the upstream side of the filter plate, and a sediment zone being provided between the gate and the filter plate.

[0005] As a preferred technical solution of this utility model, the inner two sides of the water inlet and the inner two sides of the gate groove are symmetrically provided with sliding grooves, and two sliders matching the sliding grooves are symmetrically arranged on the two sides of the gate.

[0006] As a preferred technical solution of this utility model, two winches are installed on the top of the water retaining wall, and the inside of the water retaining wall is provided with wire rope grooves corresponding to the wire ropes on the two winches. The two wire rope grooves are respectively connected to the gate groove and the filter plate groove. The ends of the wire ropes on the two winches pass through their corresponding wire rope grooves and are respectively fixedly connected to the top of the gate and the filter plate.

[0007] As a preferred technical solution of this utility model, a water pump is installed on each of the upper two sides of the upstream side of the water retaining wall, and a cavity is opened inside the water retaining wall. A water pump is installed in the cavity. The end of the water pump is inserted into the cavity and connected to the water inlet of the water pump. The water outlet of the water pump is connected to a conduit. The conduit extends out of the downstream side of the water retaining wall and extends to the filter plate. Several nozzles are evenly inclined on the side surface of the conduit.

[0008] As a preferred embodiment of this utility model, a filter screen is installed on the inner side of the water inlet end of the water pumping pipe.

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting the water-retaining wall within the river channel and utilizing the filter plates installed in the water inlet of the water-retaining wall to filter sediment, the amount of sediment entering the downstream, especially the narrower downstream channels, is reduced. This avoids problems such as reduced flood control capacity and blockage of hydraulic structures caused by sediment accumulation and riverbed rise, ensuring the navigation capacity of the river channel and guaranteeing the safe operation of water conservancy facilities. After a period of operation, when a large amount of sediment accumulates in the sediment-laden area, the gate can be closed to prevent water from flowing downstream through the water inlet. Once the water level on the downstream side drops or there is no water, the filter plates can be opened, and excavators or other equipment can be used to enter the river channel to clear the accumulated sediment in the sediment-laden area, thus preventing blockage of the water inlet. After clearing, the filter plates can be lowered and the gate opened to continue water flow and sediment filtration. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a side view of the structure of this utility model;

[0012] Figure 3 This is a side cross-sectional view of the present invention;

[0013] Figure 4 This is a side cross-sectional view of the present invention.

[0014] In the diagram: 1. Water retaining wall, 2. Water inlet, 3. Slide chute, 4. Gate, 5. Sliding block, 6. Gate slot, 7. Filter plate slot, 8. Filter plate, 9. Winch, 10. Wire rope, 11. Pumping pipe, 12. Pipe, 13. Nozzle, 14. Water pump, 15. Sedimentation zone. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a sediment filtration and cleaning device for water conservancy projects, including a retaining wall 1 set in a river channel. The retaining wall 1 is made of concrete or steel structure, spans the river channel, is fixed to the riverbed at the bottom, and is higher than the water level at the top.

[0017] A water inlet 2 is provided on the lower part of the side surface of the water-retaining wall 1 to allow water to flow through.

[0018] A gate groove 6 is provided on the lower inner surface of the water inlet 2. A gate 4 is slidably installed in the gate groove 6 to control the opening and closing of the water inlet 2 and thus control the flow of water at that point.

[0019] A filter plate groove 7 is also provided on the lower inner surface of the water inlet 2. A filter plate 8 is slidably installed in the filter plate groove 7. The gate 4 is located on the upstream side of the filter plate 8. The filter plate 8 filters mud and sand, reducing the amount of mud and sand entering the downstream.

[0020] A sedimentation zone 15 is provided between the gate 4 and the filter plate 8. By placing the retaining wall 1 in the river channel, the filter plate 8 installed in the water inlet 2 of the retaining wall 1 filters the sediment, reducing the amount of sediment entering the downstream, especially the narrower downstream channel. This avoids problems such as reduced flood control capacity and blockage of hydraulic facilities caused by sediment accumulation and riverbed rise, ensuring the navigation capacity of the river channel and the safe operation of water conservancy facilities. After a period of operation, when a large amount of sediment accumulates in the sedimentation zone 15, the gate 4 can be closed to prevent water from flowing downstream through the water inlet 2. After the water level on the downstream side drops or there is no water, the filter plate 8 can be opened, and excavators or other equipment can be used to enter the river channel to clean the sediment accumulated in the sedimentation zone 15, thus preventing blockage of the water inlet 2. After cleaning, the filter plate 8 can be lowered and the gate 4 can be opened to continue water flow and sediment filtration.

[0021] In a preferred embodiment, the inner two sides of the water inlet 2 and the inner two sides of the gate groove 6 are symmetrically provided with sliding grooves 3, and two sliders 5 matching the sliding grooves 3 are symmetrically provided on the two sides of the gate 4. The gate 4 is slidably moved up and down in the sliding grooves 3 by the sliders 5, which can improve the stability of the gate 4 in raising and lowering.

[0022] Optionally, the slide groove 3 is embedded with a wear-resistant bushing, and the slider 5 is made of self-lubricating materials such as nickel-based self-lubricating materials or high-temperature resistant polymers to ensure smooth descent of the gate 4.

[0023] In a preferred embodiment, two winches 9 are installed on the top of the retaining wall 1, and the retaining wall 1 has wire rope grooves corresponding to the wire ropes 10 on the two winches 9. The two wire rope grooves are respectively connected to the gate plate groove 6 and the filter plate groove 7. The ends of the wire ropes 10 on the two winches 9 pass through their corresponding wire rope grooves and are respectively fixedly connected to the top of the gate plate 4 and the filter plate 8. The lifting and lowering of the gate plate 4 and the filter plate 8 are controlled by the winches 9, which is convenient to control and simple to operate.

[0024] Optionally, a protective cover or similar device can be installed on the outside of the winch 9 to protect it and extend its service life.

[0025] In a preferred embodiment, a water-drawing pipe 11 is installed on each of the upper sides of the upstream side of the retaining wall 1, and a cavity is formed inside the retaining wall 1. A water pump 14 is installed in the cavity. Both the winch 9 and the water pump 14 are electrically connected to an external control switch and powered by an external power source. The winch 9 and the water pump 14 can also be controlled using the remote control method commonly used in the prior art. The end of the water-drawing pipe 11 passes into the cavity and is connected to the inlet end of the water pump 14. The outlet end of the water pump 14 is connected to a conduit 12. The conduit 12 passes through the downstream side of the retaining wall 1 and extends to the filter plate 8. When it is necessary to clean the silt, the gate 4 is lowered, and the upstream water no longer enters the downstream. The water pump 14 draws the upstream water out through the water-drawing pipe 11 and delivers it to the conduit 12. Several nozzles 13 are evenly inclined on the side surface of the conduit 12. The nozzles 13 are arranged at an angle of 30°-45° and the nozzles point towards the filter plate 8. The water in the conduit 12 is sprayed onto the filter plate 8 through the nozzles 13, which washes the mud, sand and other debris on the filter plate 8 into the mud and sand area 15, which can improve the mud and sand cleaning effect and at the same time prevent the filter plate 8 from being unable to enter the filter plate groove 7.

[0026] Optionally, the nozzle 13 is positioned at the upper part of the water inlet 2, allowing water to be sprayed and cleaned from the top of the filter plate 8. As the filter plate 8 is lifted by the winch 9, it is washed and cleaned from top to bottom, further improving the mud and sand removal effect.

[0027] The winch 9 and water pump 14 used in this application are common electronic components in the prior art. Their specific structures, working principles, control methods and circuit connections are all well-known technologies and will not be described in detail here.

[0028] In a preferred embodiment, a filter screen is installed inside the water inlet of the water pump 11. The filter screen is preferably a double-layer stainless steel filter screen with a pore size of ≤2mm. It is used to filter out larger debris in the water, such as plastic bags and duckweed, to prevent these debris from entering the water pump 11 and clogging or damaging the water pump 14.

[0029] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sediment filtering and cleaning device for hydraulic engineering, comprising a water retaining wall (1) arranged in a river channel, characterized in that: The side surface lower part of the water retaining wall (1) is provided with a water passage (2), the inner lower surface of the water passage (2) is provided with a gate slot (6), and the gate slot (6) is provided with a gate (4) sliding up and down; the inner lower surface of the water passage (2) is also provided with a filter plate slot (7), the filter plate slot (7) is provided with a filter plate (8) sliding up and down, the gate (4) is arranged on the upstream side of the filter plate (8), and a silt area (15) is arranged between the gate (4) and the filter plate (8).

2. The sediment filtering and cleaning apparatus for hydraulic engineering according to claim 1, characterized in that: The inner two side surfaces of the water passage (2) and the inner two side surfaces of the gate slot (6) are symmetrically provided with a sliding groove (3), and the two side surfaces of the gate (4) are symmetrically provided with two sliding blocks (5) matched with the sliding groove (3).

3. The sediment filtering and cleaning apparatus for hydraulic engineering according to claim 1, characterized in that: The top of the water retaining wall (1) is provided with two winches (9), and the water retaining wall (1) is provided with steel wire rope grooves corresponding to the steel wire ropes (10) on the two winches (9), the two steel wire rope grooves are communicated with the gate slot (6) and the filter plate slot (7) respectively, and the ends of the steel wire ropes (10) on the two winches (9) pass through the corresponding steel wire rope grooves and are fixedly connected with the top of the gate (4) and the filter plate (8) respectively.

4. The sediment filtering and cleaning apparatus for hydraulic engineering of claim 1, wherein: The upstream side upper part of the water retaining wall (1) is provided with an extraction pipe (11), and the water retaining wall (1) is provided with a cavity, a water pump (14) is arranged in the cavity, the end of the extraction pipe (11) is inserted into the cavity and communicated with the water inlet end of the water pump (14), the water outlet end of the water pump (14) is communicated with a conduit (12), the conduit (12) penetrates the downstream side of the water retaining wall (1) and extends to the filter plate (8), and the side surface of the conduit (12) is uniformly provided with a plurality of spray heads (13).

5. The sediment filtering and cleaning apparatus for hydraulic engineering according to claim 4, characterized in that: The water inlet end of the extraction pipe (11) is provided with a filter screen.

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