Trench bucket double-rotation and one-worm combined desilting device

Abstract

The utility model provides a double-rotation and one-worm combined desilting device for a canal bucket. The device comprises a linear diversion canal; the swirling chamber is used for discharging sand according to a centrifugal separation principle; the volute-shaped flow guide channel is used for guiding water flow to rotate; the funnel body is used for guiding water flow to do rotary motion to discharge sand from the sand discharge bottom hole and discharging sand outwards; the overflow suspension plate is used for stabilizing the flow state in the funnel and guiding clear water to be discharged; and the side groove is used for guiding clean water overflowing from the overflow suspension plate to a drainage channel. Water flow is introduced into the device through the linear diversion canal, one part of the water enters the swirling chamber for sand and stone separation, the other part of the water enters the funnel body through the volute-shaped diversion canal and rotates anticlockwise in the funnel body, and sand and stone in the water flow are separated out through the three-dimensional vortex flow effect during rotation. Due to the fact that the arc-shaped vortex-increasing flow guide plate is arranged in the funnel body, secondary flow of water flow in the funnel body is obvious, and the sand discharging effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water-sand separation, in particular to a channel bucket double-rotor-scroll combined sand discharge device. Background Art

[0002] The Shanxi Yellow River Irrigation District covers nearly three million mu (approximately 1.5 million hectares), and its water supply and distribution systems are deeply impacted by the Yellow River's fluctuating water and sediment levels. Sediment carried by the Yellow River enters the irrigation area, leading to sediment accumulation within the canals. This, in turn, reduces the canal's flow area, impairing water delivery efficiency and irrigation reliability. Annually, clearing the canals requires significant manpower and material resources. Therefore, developing a new, efficient, and water-saving sediment removal device is crucial for this Yellow River Irrigation District.

[0003] After years of engineering practice and research, it has been discovered that cyclone technology, due to its concentrated energy and strong entrainment capacity, has been widely used in channel sediment removal. Scholars at home and abroad have proposed cyclone sediment removal technologies, such as sediment funnels, which offer new solutions to channel sediment deposition. A sediment funnel is a secondary sediment removal facility that utilizes vertical vortices to separate water and sediment. It offers high sediment interception rates and low water consumption. However, this technology still faces challenges in terms of air vortex stability, suspended sediment removal efficiency, and preventing sediment from settling on the suspended plates. Utility Model Content

[0004] The utility model aims to at least solve the technical problem of poor suspended sediment treatment effect in the prior art, and particularly innovatively proposes a channel bucket double-rotor and one-scroll combined sediment discharge device.

[0005] In order to achieve the above-mentioned purpose of the present invention, the present invention provides a channel bucket double-rotating and one-scroll combined sand discharge device, the device comprising:

[0006] Straight aqueduct, used to introduce water flow;

[0007] A swirl chamber is provided at the bottom of the linear water diversion channel and is used to discharge sand by utilizing the principle of centrifugal separation;

[0008] A volute-shaped diversion channel, connected to the linear diversion channel, for guiding the water flow to start rotating;

[0009] A funnel body, wherein the water flows into the funnel body through the water inlet culvert, and is used to guide the water flow of the volute-type diversion channel to rotate in the funnel body to discharge sand;

[0010] A sand discharge bottom hole is provided at the bottom of the funnel body and is connected to the sand discharge corridor, and is used to discharge sand outward through the sand discharge corridor;

[0011] An overflow hanging plate is provided on the top of the funnel body, and is used to stabilize the flow state in the funnel body and guide the discharge of clean water;

[0012] The side trough is arranged outside the funnel body and is used to guide the clean water overflowing from the overflow hanging plate to the drainage channel.

[0013] As an optional embodiment of the present invention, optionally, the device further includes a magnetization unit, which is arranged on both sides of the linear water diversion channel, and the water flow first passes through the magnetization unit and then passes through the vortex chamber.

[0014] As an optional embodiment of the present invention, optionally, the swirl chamber includes:

[0015] A drainage cavity is provided at the bottom of the linear water diversion channel;

[0016] The swirling chamber is communicated with the bottom of the drainage chamber and is used to make the water flow produce a rotating motion to separate sand and gravel.

[0017] As an optional embodiment of the present invention, optionally, the swirling chamber is connected to a sand discharge pipe, and the sand discharge pipe is connected to a sand discharge corridor.

[0018] As an optional embodiment of the present invention, optionally, a plurality of arc-shaped vortex-increasing guide plates are provided inside the funnel body.

[0019] As an optional embodiment of the present invention, optionally, the arc-shaped vortex-increasing guide plate is an arc-shaped parallelogram structure, and the angle between the arc-shaped vortex-increasing guide plate and the inner wall of the funnel body is seventy-five degrees.

[0020] As an optional embodiment of the present invention, optionally, the width of the arc-shaped vortex-increasing guide plate is equal to one third of the width of the overflow suspension plate.

[0021] As an optional embodiment of the present invention, optionally, on one side of the water inlet culvert, the angle between the line connecting the first arc-shaped vortex-increasing guide plate and the sand discharge bottom hole arranged in the opposite direction of water flow movement and the line connecting the overflow suspended plate near the end of the water inlet culvert and the sand discharge bottom hole is twenty degrees.

[0022] As an optional embodiment of the present invention, optionally, at least three vortex control columns are vertically arranged at the inner bottom of the funnel.

[0023] As an optional embodiment of the present invention, optionally, the overflow hanging plate is an arc-shaped structure with a central angle of one hundred and eighty degrees and hanging plate sand filter holes are provided at both ends.

[0024] The beneficial effect of the present invention is that the present invention introduces water flow into the device through a linear water diversion channel, wherein a portion of the water enters the vortex chamber for sand and gravel separation, and the other portion of the water enters the funnel body through the volute-type diversion channel and rotates counterclockwise in the funnel body. During the rotation, the sand and gravel in the water flow are separated by the three-dimensional vortex flow. Due to the arc-shaped vortex-increasing guide plate provided inside the funnel body, the secondary flow of the water flow in the funnel body is more obvious, thereby improving the sand discharge effect and efficiency. At the same time, the setting of the overflow suspension plate makes the lower water flow more stable, and at the same time enables the clean water to be discharged smoothly, while the sand and gravel are discharged through the sand discharge bottom hole, ensuring the cleanliness of the water flow and improving the sand discharge effect. In addition, the design of the side trough guides the clean water overflowing from the overflow suspension plate to the drainage channel, further improving the utilization rate of water resources.

[0025] The dual-rotating, single-scroll combined sand removal device in this utility model offers significant advantages in practical application. First, due to its simple structure and convenient operation, it is easy to install and maintain within existing canal systems. Second, the device effectively reduces labor and material investment, lowering sand removal costs. More importantly, by improving sand removal efficiency, it effectively reduces sediment accumulation within the canal, ensuring water delivery efficiency and irrigation guarantee rate, thereby improving agricultural production benefits across the entire irrigation area.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of the utility model of a channel bucket double-rotor and one-scroll combined sand discharge device.

[0029] Figure 2 It is a structural schematic diagram of the utility model of a channel bucket double-rotor and one-scroll combined sand discharge device.

[0030] Figure 3 It is a structural schematic diagram of the utility model of a channel bucket double-rotor and one-scroll combined sand discharge device.

[0031] Figure 4 It is a structural schematic diagram of the swirl chamber of the utility model.

[0032] In the figure: 1. Linear water diversion channel; 2. Magnetization unit; 3. Swirl chamber; 301. Drainage chamber; 302. Swirl chamber; 4. Sand discharge pipe; 5. Volute-type diversion channel; 6. Sand discharge pipe; 7. Funnel body; 8. Sand discharge bottom hole; 9. Arc-shaped vortex-increasing guide plate; 10. Suspended plate sand filter hole; 11. Overflow suspended plate; 12. Side trough; 13. Drainage channel; 14. Inlet culvert; 15. Vortex control column; 16. Sand discharge corridor. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] like Figure 1 As shown, a channel bucket double-rotating and one-scroll combined sand discharge device, the device comprises:

[0035] A linear water diversion channel 1, used for introducing water flow;

[0036] The vortex chamber 3 is provided at the bottom of the linear water diversion channel 1 and is used to discharge sand by utilizing the principle of centrifugal separation;

[0037] The volute-type diversion channel 5 is connected to the linear diversion channel 1 and is used to guide the water flow to start rotating;

[0038] The funnel body 7, the water flows into the funnel body 7 through the water inlet culvert 14, and is used to guide the water flow of the volute-type diversion channel 5 to rotate in the funnel body 7 to discharge sand; the funnel body 7 is an inverted conical structure, and when the water flows into the funnel body 7, it can rotate in the funnel body 7.

[0039] The sand discharge bottom hole 8 is provided at the bottom of the funnel body 7 and is connected to the sand discharge corridor 16, and is used to discharge sand outward through the sand discharge corridor 16;

[0040] The overflow hanging plate 11 is provided at the top of the funnel body 7 to stabilize the flow state in the funnel body 7 and guide the clean water to be discharged; Figure 2 and 3 As shown, the overflow suspension plate 11 is a metal arc-shaped structural plate horizontally installed on the inner edge of the funnel body 7. When the water flow rotates in the funnel body 7, the clean water on the upper layer enters the side trough 12 through the overflow suspension plate 11 and is discharged.

[0041] The sand discharge corridor 16 is communicated with the sand discharge pipe 4 and the sand discharge pipe 6 , and the sand and gravel filtered by the swirling chamber 3 and the funnel body 7 are discharged through the sand discharge corridor 16 .

[0042] The side trough 12 is provided outside the funnel body 7 and is used to guide the clean water overflowing from the overflow hanging plate 11 to the drainage channel 13. Figure 2 and 3 As shown, the side trough 12 is installed on the outside of the funnel body 7, and the horizontal plane of the bottom of the side trough 12 is lower than the horizontal plane of the overflow hanging plate 11, so that the clean water on the overflow hanging plate 11 can easily enter the side trough 12.

[0043] like Figures 1 to 3 As shown, when the present invention is in use, water first flows into the device through the linear water diversion channel 1, and a portion of the water flows through the vortex chamber 3 for preliminary sand and gravel separation. The drainage chamber 301 of the vortex chamber 3 is designed to effectively guide the water flow into the vortex chamber 302, wherein the water flow generates high-speed rotation in the vortex chamber, and uses centrifugal force to separate sand and water; the separated sand and gravel are discharged through the sand discharge pipe 4; the other part of the water enters the funnel body 7 through the arc-shaped volute-type diversion channel 5 and the water inlet culvert 14. In the funnel body 7, the water flow is constrained by the funnel wall to form a very strong circulation. This water flow is in turn affected by the overflow suspension plate 11 placed on the funnel body 7, which induces various forms of side flows. The coupling of this circulation and various side flows forms a three-dimensional vertical axis spiral flow, which carries sediment to the sand discharge bottom hole 8 to achieve water-sand separation. The high-concentration water-sand mixture after separation is discharged through the sand discharge bottom hole 2. The setting of the side trough 12 can not only collect the clean water discharged by the overflow suspension plate 11, but also guide this clean water to the drainage channel 13, thereby realizing the recycling of water resources.

[0044] As an optional embodiment of the present invention, optionally, the device further includes a magnetization unit 2 , which is arranged on both sides of the linear water diversion channel 1 , and the water flow first passes through the magnetization unit 2 and then passes through the vortex chamber 3 .

[0045] like Figure 1 As shown, the magnetization unit 2 of this embodiment is a commercially available magnetization device. Its primary function is to magnetize sediment in the water using a magnetic field, causing sediment particles to collide with each other to form flocs. This enhances the flocculation of viscous fine particles and accelerates sediment settling, further improving the efficiency and effectiveness of the sediment removal device. The magnetized water enters the vortex chamber 3, where it can more effectively separate sand and gravel.

[0046] As an optional embodiment of the present invention, optionally, the swirl chamber 3 includes:

[0047] The drainage cavity 301 is provided at the bottom of the linear water diversion channel 1; Figure 4 As shown, the drainage cavity 301 is a triangular prism structure with a hollow interior, and water can flow into the swirling cavity 302 through the drainage cavity 301 .

[0048] The swirling chamber 302, connected to the bottom of the drainage chamber 301, is used to generate a rotating motion in the water flow to separate sand and gravel. The swirling chamber 302 is a hollow cylindrical structure. Under the action of gravity and hydraulic pressure, the drainage chamber 301 guides the water into the swirling chamber 302, generating a rotating water flow. The "suspended winch" effect of the rotating water flow separates the high-sediment-content water flow from the main flow, and the high-sediment-content water flow enters the sand discharge corridor 16 through the sand discharge pipe 4.

[0049] like Figure 4 As shown, since the drainage chamber 301 is installed at the bottom of the linear water diversion channel 1, the water flow in the drainage chamber 301 is the water flow in the lower layer of the linear water diversion channel 1, and the water flow in the lower layer contains a large amount of sand and gravel; the principle of the vortex chamber 3 is to separate sand and gravel through centrifugal force, so the setting of the drainage chamber 301 can ensure that the water flow with a large amount of sand and gravel directly enters the vortex chamber 302, thereby improving the sand discharge efficiency. The cylindrical structure design of the vortex chamber 302 causes the water flow to rotate at high speed therein, further enhancing the centrifugal force and ensuring that the sand and gravel particles can be effectively separated. Under the "suspension winch" effect of the rotating water flow, the high-sand content water flow is separated from the mainstream. In addition, the vortex chamber 302 is connected to the sand discharge pipe 4 and the sand discharge corridor 16. The setting of these structures allows the separated sand and gravel to be discharged smoothly, avoiding the re-deposition of sand and gravel in the vortex chamber, thereby ensuring the stable operation of the device and the sand discharge effect.

[0050] The closed end side of the swirl chamber 3 is tilted upward by 20 degrees to reduce the accumulation of mud and sand in the sand discharge pipe 4.

[0051] As an optional embodiment of the present invention, optionally, the swirling chamber 3 is connected to the sand discharge pipe 4 , and the sand discharge pipe 4 is connected to the sand discharge corridor 16 .

[0052] like Figure 1 As shown, the axis of the sand discharge pipe 4 forms an angle of 60° with the linear water diversion channel 1. The high-sand water discharged from the sand discharge pipe 3 enters the sand discharge corridor 16 through the sand discharge pipe 4 and flows back to the original river channel.

[0053] As an optional embodiment of the present invention, optionally, a plurality of arc-shaped vortex-increasing guide plates 9 are provided inside the funnel body 7 .

[0054] like Figures 1 to 3As shown, a plurality of arc-shaped vortex-increasing guide plates 9 are installed inside the funnel body 7 in order to improve the secondary flow inside the funnel body 7, enhance the vortex intensity of the water flow and the sedimentation and sand transporting effects. These arc-shaped vortex-increasing guide plates 9 are in an arc-shaped structure, forming a certain inclination angle with the inner wall of the funnel body 7, reducing turbulence and collision, and reducing energy loss. In this way, sand and gravel particles are discharged through the sand discharge bottom hole 8 under the drive of the water flow. At the same time, due to the enhancement of the vortex flow effect, the collision and friction between the sand and gravel particles are also more frequent, which helps to further separate the sand and gravel and improve the sand discharge efficiency. In addition, a sand discharge bottom hole 8 is also provided at the bottom of the funnel body 7 of this embodiment to ensure that the sand and gravel can be discharged smoothly. The provision of the sand discharge bottom hole 8 is not only conducive to the discharge of sand and gravel, but also can prevent sand and gravel from accumulating in the funnel body 7, thereby ensuring the long-term stable operation of the device.

[0055] As an optional embodiment of the present invention, optionally, the arc-shaped vortex-increasing guide plate 9 is an arc-shaped parallelogram structure, and the angle between the arc-shaped vortex-increasing guide plate 9 and the inner wall of the funnel body 7 is seventy-five degrees.

[0056] like Figure 1 As shown, all the arc-shaped vortex-increasing guide plates 9 are inclined in the counterclockwise direction, and the angle between the arc-shaped vortex-increasing guide plates 9 and the inner wall of the funnel body 7 is seventy-five degrees. This design can ensure that the water flow generates a more effective three-dimensional vortex flow in the funnel body 7. The arc-shaped parallelogram structure of the arc-shaped vortex-increasing guide plates 9 enables the water flow to generate a stronger secondary flow when passing through, thereby enhancing the vortex intensity of the water flow. These guide plates 9 not only improve the rotation effect of the water flow, but also increase the movement speed of sand and gravel particles in the water flow through their inclination angle, making it easier for sand and gravel particles to be discharged through the sand discharge bottom hole 8. In addition, due to the enhancement of the secondary flow, the sediment in the sand-laden water flow is easier to settle, and its ability to transfer to the bottom hole is enhanced to improve the sand discharge efficiency.

[0057] As an optional embodiment of the present invention, optionally, the width of the arc-shaped vortex-increasing guide plate 9 is equal to one third of the width of the overflow suspension plate 11 .

[0058] like Figure 1 As shown, the width of the curved vortex-increasing deflector 9 is designed to be equal to one-third the width of the overflow plate 11 to maximize the use of the space in the funnel body 7 and ensure uniform distribution of water flow within the funnel body 7. By precisely controlling the width of the deflector 9, the water flow through the funnel body 7 can produce a uniform vortex effect, thereby preventing excessive concentration of water flow in certain areas and affecting sand removal efficiency. The width of the deflector 9 is equal to one-third the width of the overflow plate 11, which also facilitates standardization during the manufacturing and installation process, improving production efficiency and reducing costs.

[0059] As an optional embodiment of the present invention, optionally, on one side of the water inlet culvert 14, the angle between the line between the first arc-shaped vortex-increasing guide plate 9 and the sand discharge bottom hole 8 arranged in the opposite direction of water flow movement and the line between the overflow suspended plate 11 near the end of the water inlet culvert 14 and the sand discharge bottom hole 8 is twenty degrees.

[0060] like Figure 1 As shown, the angle between the two connecting lines is designed to be 20 degrees to ensure that the water flow can quickly generate a rotation effect when entering the funnel body 7. This design allows the water flow to quickly obtain sufficient rotational kinetic energy when passing through the first arc-shaped vortex-increasing guide plate 9, thereby forming an effective vortex inside the funnel body 7, ensuring that sand and gravel particles and clean water are fully separated and discharged inside the funnel body 7.

[0061] As an optional embodiment of the present invention, optionally, at least three vortex control columns 15 are vertically arranged on the inner bottom of the funnel body 7.

[0062] like Figure 2 and 3 As shown, to further enhance the sand removal effect, three vortex control columns 15 are vertically mounted on the bottom of the funnel 7 in this embodiment. These vortex control columns 15 can effectively control the vortex intensity of the water flow within the funnel 7, preventing sand and gravel from accumulating within the funnel. In addition, they can ensure that the central air vortex stably penetrates the bottom hole, ensuring a smooth sand removal process.

[0063] As an optional embodiment of the present invention, optionally, the overflow hanging plate 11 is an arc-shaped structure with a central angle of 180 degrees and hanging plate sand filter holes 10 are provided at both ends.

[0064] like Figure 1 As shown, the overflow plate 11 is an arc-shaped structure with a central angle of 180 degrees, and is provided with plate filter holes 10 at both ends. This design enables the overflow plate 11 to effectively guide the clean water from the upper layer through the overflow plate 11 to the side trough 12. At the same time, the design of the plate filter holes 10 allows the sand and gravel on the overflow plate 11 to return to the funnel body 7, further improving the sand removal effect.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A channel bucket double-rotor and one-scroll combined sand discharge device, characterized in that: The device comprises: A linear water diversion channel (1) for introducing water flow; A swirl chamber (3) is provided at the bottom of the linear water diversion channel (1) and is used for removing sand by utilizing the principle of centrifugal separation; A volute-type diversion channel (5) is connected to the linear water diversion channel (1) and is used to guide the water flow to start rotating; A funnel body (7), wherein the water flows into the funnel body (7) through a water inlet culvert (14), and is used to guide the water flow of the volute-type diversion channel (5) to rotate in the funnel body (7) to discharge sand; A sand discharge bottom hole (8) is provided at the bottom of the funnel body (7) and is connected to the sand discharge gallery (16) for discharging sand outwards through the sand discharge gallery (16); An overflow hanging plate (11) is provided on the top of the funnel body (7) and is used to stabilize the flow state in the funnel body (7) and guide the discharge of clean water; A side trough (12) is provided outside the funnel body (7) and is used to guide the clean water overflowing from the overflow hanging plate (11) to the drainage channel (13).

2. A combined sand removal device with a double-rotating hopper and a worm according to claim 1, characterized in that: The device further comprises a magnetizing unit (2), wherein the magnetizing unit (2) is arranged on both sides of the linear water diversion channel (1), and the water flow first passes through the magnetizing unit (2) and then passes through the swirling chamber (3).

3. A combined sand removal device with double vortex and one worm according to claim 1, characterized in that: The swirl chamber (3) comprises: A drainage chamber (301) is provided at the bottom of the linear water diversion channel (1); The swirling chamber (302) is communicated with the bottom of the drainage chamber (301) and is used to make the water flow generate a swirling motion to separate sand and gravel.

4. A combined sand removal device with double vortex and one worm in a channel bucket as claimed in claim 1, characterized in that: The swirling chamber (3) is connected to a sand discharge pipe (4), and the sand discharge pipe (4) is connected to a sand discharge gallery (16).

5. The channel bucket double-rotor and one-scroll combined sand removal device according to claim 1, characterized in that: A plurality of arc-shaped vortex-increasing guide plates (9) are arranged inside the funnel body (7).

6. A combined sand removal device with double vortex and one worm in a channel bucket as claimed in claim 5, characterized in that: The arc-shaped vortex-increasing guide plate (9) is an arc-shaped parallelogram structure, and the angle between the arc-shaped vortex-increasing guide plate (9) and the inner wall of the funnel body (7) is seventy-five degrees.

7. A combined sand removal device with double vortex and one worm in a channel bucket as claimed in claim 5, characterized in that: The width of the arc-shaped vortex-increasing guide plate (9) is equal to one third of the width of the overflow suspension plate (11).

8. A combined sand removal device with double vortex and one worm in a channel bucket as claimed in claim 5, characterized in that: On one side of the water inlet culvert (14), the angle between the line connecting the first arc-shaped vortex-increasing guide plate (9) and the sand discharge bottom hole (8) arranged in the opposite direction of water flow and the line connecting the overflow hanging plate (11) near the end of the water inlet culvert (14) and the sand discharge bottom hole (8) is twenty degrees.

9. The channel bucket double-rotor and one-scroll combined sand removal device according to claim 1, characterized in that: At least three vortex control columns (15) are vertically arranged at the inner bottom of the funnel body (7).

10. The channel bucket double-rotor and one-scroll combined sand removal device according to claim 1, characterized in that: The overflow hanging plate (11) is an arc-shaped structure with a central angle of 180 degrees and hanging plate sand filtering holes (10) are provided at both ends.

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