A flow-adjustable reservoir grading sand control and sand discharge device

Abstract

The utility model relates to the technical field of reservoir sand discharge, specifically refers to a kind of adjustable flow's reservoir grading sand control sand discharge device, including strip collecting bin, rotatable grading sand screening cylinder is equipped on strip collecting bin, one side of strip collecting bin bottom is equipped with side out sand hole, and strip collecting bin bottom is equipped with support frame body, and grading sand screening cylinder is rotatably connected between the both ends of support frame body, movable vibration hammer assembly is equipped in support frame body, and the rotary drum synchronous with grading sand screening cylinder is rotatably connected in one end of support frame body, and rotary drum is equipped with several evenly distributed sand dredging hopper, and one end of support frame body close to rotary drum is equipped with the spiral sand conveying roller located in rotary drum inner wall.The utility model relates to a kind of adjustable flow's reservoir grading sand control sand discharge device, it can be through grading screening, vibration anti-blocking and continuous sand dredging mechanism, efficiently, energy-savingly realize the grading control and discharge of reservoir silt, and adjust flow, to solve the problem of silt accumulation, water resource waste and high dredging cost.

Description

Technical Field

[0001] This utility model relates to the field of reservoir sediment discharge technology, specifically to a reservoir graded sediment control and discharge device with adjustable flow rate. Background Technology

[0002] Reservoirs, as important water conservancy facilities, play a crucial role in flood control, water supply, and power generation. However, siltation is a common and serious problem during reservoir operation. Continuous silt deposition reduces reservoir capacity, lowers flood control and water storage capabilities, affects the normal operation of water conservancy facilities, and even threatens dam safety. Traditional silt removal methods mainly include flood discharge and mechanical dredging, but these methods have certain limitations. For example, flood discharge requires large-scale water release, resulting in water resource waste; mechanical dredging is costly, time-consuming, and may disrupt the normal operation of the reservoir.

[0003] Therefore, developing a high-efficiency, energy-saving, and adjustable flow rate reservoir graded sediment control and discharge device is of great significance for solving the problem of reservoir siltation. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a reservoir graded sediment control and discharge device with adjustable flow rate. Through graded screening, vibration anti-clogging, and continuous sediment removal mechanisms, it can efficiently and energy-savingly achieve graded control and discharge of reservoir sediment, and regulate flow rate, thereby solving the problems of sediment accumulation, water resource waste, and high dredging costs.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an adjustable flow reservoir graded sand control and discharge device, including a strip-shaped collection bin, a rotatable grading sand screening cylinder on the strip-shaped collection bin, a side sand discharge hole on one side of the bottom of the strip-shaped collection bin, a support frame at the bottom of the strip-shaped collection bin, the grading sand screening cylinder being rotatably connected between the two ends of the support frame, a movable vibrating hammer assembly being provided inside the support frame, a rotating drum that rotates synchronously with the grading sand screening cylinder being rotatably connected to one end of the support frame, a number of evenly distributed sand scooping buckets being provided on the rotating drum, and a spiral sand feeding roller located on the inner wall of the rotating drum being provided at one end of the support frame near the rotating drum.

[0006] As an improvement, the grading sand screening cylinder is provided with a cylinder frame shaft for supporting the grading sand screening cylinder, and the grading sand screening cylinder is provided with a primary screening zone, a secondary screening zone and a tertiary screening zone along the cylinder frame shaft axis.

[0007] As an improvement, the bottom of the strip collection bin is provided with a bottom sand outlet hole, and the bottom of the primary screening zone, the secondary screening zone and the tertiary screening zone are all provided with corresponding side sand outlet holes and bottom sand outlet holes.

[0008] As an improvement, a side-outlet sand discharge hole is provided below the end of the third-stage screening zone that is away from the second-stage screening zone.

[0009] As an improvement, the movable vibratory hammer assembly includes a fixed rail located at the bottom of the support frame, a movable base that moves via a screw on the fixed rail, and a vibratory hammer that strikes the strip collection bin on the movable base.

[0010] As an improvement, the cylinder frame shaft and the rotating cylinder are connected by a transmission assembly, which includes a transmission shaft rotatably connected to one end of the support frame, and a gear set is provided between the transmission shaft and the cylinder frame shaft.

[0011] As an improvement, a cylinder support frame is provided between the drive shaft and the rotating drum. The cylinder support frame includes a sleeve that is rotatably connected to the drive shaft. Support rods are provided on both sides of the sleeve, and an arc-shaped support rail that is slidably connected to the inner wall of the rotating drum is provided on the support rod on the same side.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1. The grading screening cylinder is equipped with primary, secondary, and tertiary screening zones along its frame axis, corresponding to different particle sizes of sediment. During rotation, the sediment is separated at each stage and discharged directionally through corresponding side and bottom discharge holes. This grading mechanism not only improves sediment discharge efficiency but also allows for customized discharge strategies based on reservoir sediment characteristics, avoiding resource waste caused by mixed discharge. Compared to traditional flood discharge and sediment removal methods, this invention can precisely control sediment particle size, reduce ineffective drainage, and significantly improve the reservoir capacity recovery speed.

[0014] 2. The introduction of the mobile vibratory hammer assembly effectively solves the problems of silt compaction and clogging. It can periodically move along the bottom of the strip-shaped collection bin and strike the silt, generating vibration waves to keep the loose silt flowing, ensuring the continuity of the silt removal process and avoiding the downtime and cleaning problems common in mechanical dredging. Simultaneously, the support frame provides a stable foundation, enabling the device to operate long-term in the harsh environment at the bottom of the reservoir, reducing maintenance frequency and costs. Compared with traditional mechanical dredging, the automated anti-clogging design of this invention reduces manual intervention and improves reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a reservoir graded sediment control and discharge device with adjustable flow rate according to this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of a reservoir graded sediment control and discharge device with adjustable flow rate according to this utility model. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the structure of a graded sand screening cylinder for a reservoir graded sand control and discharge device with adjustable flow rate, according to this utility model.

[0018] Figure 4 This is a schematic diagram of the mobile vibratory hammer assembly and cylinder support frame of an adjustable flow reservoir graded sand control and discharge device according to this utility model.

[0019] As shown in the figure: 1. Strip collection bin; 2. Grading sand screening cylinder; 21. Cylinder frame shaft; 22. Primary screening zone; 23. Secondary screening zone; 24. Tertiary screening zone; 3. Side sand outlet; 31. Bottom sand outlet; 4. Cylinder support frame; 41. Sleeve; 42. Support rod; 43. Arc-shaped support rail; 5. Rotary cylinder; 6. Sand scoop; 7. Support frame; 8. Mobile vibratory hammer assembly; 81. Fixed rail; 82. Mobile base; 83. Vibratory hammer; 9. Transmission assembly; 91. Transmission shaft; 92. Gear set; 10. Spiral sand feeding roller. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 and attached Figure 3 :

[0022] An adjustable flow reservoir graded sand control and discharge device includes a strip-shaped collection chamber 1, on which a rotatable grading sand screening cylinder 2 is mounted. A side sand outlet 3 is located on one side of the bottom of the strip-shaped collection chamber 1. A cylinder frame shaft 21 for supporting the grading sand screening cylinder 2 is provided inside the cylinder frame shaft 21. Along the axial direction of the cylinder frame shaft 21, the grading sand screening cylinder 2 has a primary screening zone 22, a secondary screening zone 23, and a tertiary screening zone 24. A bottom sand outlet 31 is located at the bottom of the strip-shaped collection chamber 1. The primary screening zone 22, the secondary screening zone 23, and the tertiary screening zone 24 all have corresponding side sand outlets 3 and bottom sand outlets 31 at their bottoms. A side sand outlet 3 is located below the end of the tertiary screening zone 24 furthest from the secondary screening zone 23.

[0023] Through the above structure, the strip collection chamber 1 cooperates with the grading screening cylinder 2 to achieve preliminary collection and grading of sediment. The grading screening cylinder 2 is supported by the cylinder frame shaft 21 and is divided into a primary screening zone 22, a secondary screening zone 23, and a tertiary screening zone 24 along the axial direction. Sediment of different particle sizes is separated step by step during rotation. Side discharge holes 3 and bottom discharge holes 31 are set corresponding to each screening zone to ensure that sediment of different particle sizes can be discharged in a directional manner. The side discharge holes 3 at the end of the tertiary screening zone 24 further optimize the discharge efficiency of fine sand.

[0024] Combined with appendix Figure 2 and attached Figure 4 :

[0025] The bottom of the strip collection bin 1 is provided with a support frame 7, and the grading sand screening cylinder 2 is rotatably connected between the two ends of the support frame 7. The support frame 7 is provided with a movable vibrating hammer assembly 8. The movable vibrating hammer assembly 8 includes a fixed rail 81 located at the bottom of the support frame 7. The fixed rail 81 is provided with a movable base 82 that moves by a screw. The movable base 82 is provided with a vibrating hammer 83 that strikes the strip collection bin 1.

[0026] Through the above structure, the support frame 7 provides stable support for the grading and screening cylinder 2. The movable vibratory hammer assembly 8 moves along the bottom of the strip collection bin 1 via the fixed track 81 and the screw-driven movable base 82. The vibratory hammer 83 periodically strikes the collection bin, effectively preventing the sand from hardening or clogging inside the bin and ensuring the continuity of sand discharge.

[0027] Combined with appendix Figure 1 and attached Figure 4 :

[0028] One end of the support frame 7 is rotatably connected to a rotating drum 5 that rotates synchronously with the grading screen 2. The drum frame shaft 21 and the rotating drum 5 are connected by a transmission assembly 9. The transmission assembly 9 includes a transmission shaft 91 rotatably connected to one end of the support frame 7, and a gear set 92 is provided between the transmission shaft 91 and the drum frame shaft 21. A drum support frame 4 is provided between the transmission shaft 91 and the rotating drum 5. The drum support frame 4 includes a sleeve 41 rotatably connected to the transmission shaft 91. Support rods 42 are provided on both sides of the sleeve 41, and an arc-shaped support rail 43 that is slidably connected to the inner wall of the rotating drum 5 is provided on the support rod 42 on the same side.

[0029] Through the above structure, the transmission assembly 9 transmits the power of the transmission shaft 91 synchronously to the drum frame shaft 21 and the rotating drum 5 via the gear set 92, ensuring that the grading sand screening drum 2 and the sand scooping bucket 6 operate in coordination. The drum support frame 4 is connected to the transmission shaft 91 via the sleeve 41, and the arc-shaped support rail 43 at the end of the support rod 42 is slidably connected to the inner wall of the rotating drum 5, which provides rotational stability and prevents the rotating drum from swaying.

[0030] Combined with appendix Figure 1 :

[0031] The rotating drum 5 is provided with several evenly distributed sand scoops 6, and the support frame 7 is provided with a spiral sand feeding roller 10 located on the inner wall of the rotating drum 5 at one end.

[0032] Through the above structure, the sand-scooping bucket 6 on the rotating drum 5 scoops up the sediment from the bottom of the reservoir during rotation, and after rotating to a high position, it falls into the area of ​​the spiral sand-feeding roller 10. The spiral sand-feeding roller 10 is located on the inner wall of the rotating drum 5, and through the spiral propulsion action, it evenly transports the sediment to the inlet of the grading screen cylinder 2, realizing continuous supply and flow regulation of sediment.

[0033] In practical implementation, the device is installed at a suitable location at the bottom of the reservoir, and the support frame 7 is fixed to the reservoir base with anchors to ensure overall stability. The external drive system (such as an electric motor or hydraulic motor, not shown in the figure) is activated, and power is transmitted through the transmission assembly 9, causing the rotating drum 5 and the grading and screening drum 2 to rotate synchronously, achieving continuous operation.

[0034] The sand scoop 6 on the rotating drum 5 rotates with the drum, scooping up silt from the bottom of the reservoir. When the sand scoop 6 rotates to the high position, the silt falls into the interior of the rotating drum 5 due to gravity. At this time, the spiral sand feeding roller 10 rotates on the inner wall of the rotating drum 5, pushing the silt evenly to the inlet of the grading screen cylinder 2, realizing the initial conveying and flow regulation of the silt.

[0035] After entering the grading screening cylinder 2, the sediment moves axially along the cylinder frame shaft 21 under the action of cylinder rotation. The primary screening zone 22, the secondary screening zone 23, and the tertiary screening zone 24 are respectively equipped with progressively larger screen mesh sizes. Fine sediment particles are intercepted in the primary screening zone 22 and discharged through the corresponding side discharge holes 3 and bottom discharge holes 31; medium-sized particles are separated and discharged in the secondary screening zone 23; and coarse sand is enriched in the tertiary screening zone 24 and efficiently discharged through the end side discharge holes 3, thus achieving graded sand control.

[0036] To prevent sediment from hardening or clogging inside the strip collection bin 1, the mobile vibratory hammer assembly 8 is activated periodically. The mobile base 82 is driven by a screw to move along the fixed track 81, causing the vibratory hammer 83 to periodically strike the bottom of the strip collection bin 1, generating vibration waves to loosen the sediment and ensure smooth sand discharge.

[0037] The cylinder support frame 4 is rotatably connected to the drive shaft 91 via the sleeve 41. The arc-shaped support rail 43 at the end of the support rod 42 slides against the inner wall of the rotating cylinder 5, effectively suppressing the radial sway of the rotating cylinder 5 and improving operational stability. By adjusting the speed of the drive system, the operating frequency of the sand scoop 6 and the advancing speed of the spiral sand conveying roller 10 can be controlled, thereby precisely adjusting the sand discharge flow rate. In addition, the layout of the side sand discharge holes 3 and the bottom sand discharge holes 31 can be customized according to the characteristics of the reservoir sediment, further optimizing the grading efficiency.

[0038] This device, through its mechanical and automated design, significantly reduces water consumption and dredging costs, making it suitable for long-term reservoir sediment management scenarios.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A reservoir graded sand control and discharge device with adjustable flow rate, comprising a strip-shaped collection chamber (1), a rotatable grading sand screening cylinder (2) provided on the strip-shaped collection chamber (1), a side sand outlet hole (3) provided on one side of the bottom of the strip-shaped collection chamber (1), a support frame (7) provided at the bottom of the strip-shaped collection chamber (1), and the grading sand screening cylinder (2) being rotatably connected between the two ends of the support frame (7), characterized in that: The support frame (7) is equipped with a movable vibrating hammer assembly (8). One end of the support frame (7) is rotatably connected to a rotating drum (5) that rotates synchronously with the grading screen (2). Several evenly distributed sand scoops (6) are provided on the rotating drum (5). The end of the support frame (7) near the rotating drum (5) is equipped with a spiral sand feeding roller (10) located on the inner wall of the rotating drum (5).

2. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 1, characterized in that: The grading sand screening cylinder (2) is provided with a cylinder frame shaft (21) for supporting the grading sand screening cylinder (2). The grading sand screening cylinder (2) is provided with a primary screening zone (22), a secondary screening zone (23) and a tertiary screening zone (24) along the cylinder frame shaft (21).

3. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 2, characterized in that: The bottom of the strip collection bin (1) is provided with a bottom sand outlet hole (31), and the bottom of the primary screening zone (22), the secondary screening zone (23) and the tertiary screening zone (24) are provided with corresponding side sand outlet holes (3) and bottom sand outlet holes (31).

4. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 3, characterized in that: The third-stage screening zone (24) is provided with a side sand outlet (3) at the end away from the second-stage screening zone (23).

5. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 1, characterized in that: The movable vibratory hammer assembly (8) includes a fixed rail (81) located at the bottom of the support frame (7), a movable base (82) that moves by a screw on the fixed rail (81), and a vibratory hammer (83) that strikes the strip collection bin (1) on the movable base (82).

6. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 2, characterized in that: The cylinder frame shaft (21) is connected to the rotating cylinder (5) through a transmission assembly (9). The transmission assembly (9) includes a transmission shaft (91) rotatably connected to one end of the support frame (7). A gear set (92) is provided between the transmission shaft (91) and the cylinder frame shaft (21).

7. The adjustable flow rate reservoir graded sediment control and discharge device according to claim 6, characterized in that: A cylinder support frame (4) is provided between the drive shaft (91) and the rotating drum (5). The cylinder support frame (4) includes a sleeve (41) that is rotatably connected to the drive shaft (91). Support rods (42) are provided on both sides of the sleeve (41). An arc-shaped support rail (43) that is slidably connected to the inner wall of the rotating drum (5) is provided on the support rod (42) on the same side.

Images