Adjustable grid plate for flocculation tank

Abstract

The utility model discloses an adjustable grid board for flocculation tank relates to flocculation equipment technical field. Including flocculation tank group, adjustable grid component, adjusting assembly, sensor and control system, the adjustable grid component includes fixed grid frame and cross link, the fixed grid frame includes first border, second border, third border and fourth border, the cross link is by first connecting rod and second connecting rod cross connection, and forms diamond -shaped overflow hole, wherein, through adjusting assembly can make the slider in the fourth border along the width direction remove, and drive cross link included angle change, and then change the size of overflow hole, and adapt flow change, promote flocculation effect.

Description

Technical Field

[0001] This utility model relates to the technical field of flocculation devices, specifically an adjustable grid plate for flocculation tanks. Background Technology

[0002] In water treatment, the grating plates in flocculation tanks play a crucial role in promoting particle aggregation in water. Traditional grating plates have fixed pore sizes, making it difficult to adapt to changes in flow rate and water quality. When the water flow rate is high, the fixed pore size of the grating plate causes the water flow velocity to be too fast, resulting in excessive turbulence intensity, which may destroy the already formed flocs. Conversely, when the flow rate is low, the water flow velocity is too slow, and the turbulence intensity is insufficient to effectively promote particle collision and aggregation, thus reducing the flocculation effect.

[0003] Therefore, this utility model proposes an adjustable grid plate for flocculation tanks, which can automatically adjust the diameter of the flow holes according to the actual working conditions to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model discloses an adjustable grid plate for a flocculation tank, comprising a flocculation tank assembly, an adjustable grid assembly, an adjustment assembly, a sensor, and a control system; the adjustable grid assembly includes a fixed grid frame and cross links, the fixed grid frame including a first frame, a second frame, a third frame, and a fourth frame; the cross links are formed by the first link and the second link being cross-connected and forming a diamond-shaped flow hole; wherein, each end of the cross link is slidably installed in the first frame, the second frame, the third frame, and the fourth frame via a slider.

[0005] Furthermore, the flocculation tank group includes an inlet pipe, a tank body, an vent pipe, and an outlet pipe. Several vertical baffles are spaced apart along the water flow direction in the tank body, and an independent vertical shaft is formed between two adjacent vertical baffles. The adjustable mesh assembly is set in the independent vertical shaft.

[0006] Furthermore, a sliding groove is provided on one side of the first, second, third, and fourth borders, and a plurality of sliders are provided in the sliding grooves. The sliders can move along the length direction of the border in the sliding grooves; wherein, the sliders in the fourth border can also move along the width direction of the fourth border.

[0007] Furthermore, the adjustment component is located on the side of the fourth frame away from the second frame. The adjustment component includes an adjustment bolt, a nut, a connecting bracket, and a spring. The adjustment component is used to drive the slider in the fourth frame to move along the width direction of the fourth frame, thereby changing the flow area of ​​the diamond-shaped flow hole.

[0008] Furthermore, the first connecting rod and the second connecting rod are respectively uniformly provided with first through holes and second through holes. The distance between two adjacent first through holes is equal to the distance between two adjacent second through holes, so that the four sides of the formed rhomboid flow hole are equal in length, and the first through holes and the second through holes overlap and are rotatably connected by a pin.

[0009] Furthermore, the adjusting bolt is threadedly connected to the connecting frame, and the connecting frame is fixedly connected to the slider of the fourth frame through the connecting rod. By rotating the adjusting bolt, the connecting frame is driven to move along the width direction of the fourth frame, thereby causing the slider to move along the width direction of the fourth frame.

[0010] Furthermore, the sensor includes an electromagnetic flow meter, an online turbidity meter, and a pressure transmitter. The electromagnetic flow meter is installed in the inlet pipe of the pool, and one online turbidity meter and one pressure transmitter are respectively installed in the inlet pipe and the outlet pipe of the pool.

[0011] Furthermore, a baffle is provided at the lower end of the third frame near the fourth frame. The baffle is arranged along the length of the third frame and its height covers the maximum extension stroke of the spring in the adjustment assembly. It is used to close the potential flow gap in the spring extension area and ensure that the water flows only through the diamond-shaped flow hole.

[0012] Furthermore, the first end of the spring abuts against the connecting frame, and the second end abuts against the fourth frame. One end of the slider in the fourth frame is fixedly provided with a connecting rod, and the connecting rod and the connecting frame form a linkage structure to transmit the driving force of the adjusting component to the slider.

[0013] Furthermore, the bottom of the pool is provided with a drain pipe and a drain valve, which is used to discharge the water in the pool during regular cleaning and maintenance.

[0014] Compared with the prior art, the adjustable grid plate for flocculation tank provided by this utility model has the following advantages: This invention, through the adjustment component, allows the slider to slide within the groove of the fourth frame along the width of the fourth frame. This movement causes the remaining endpoints of the cross link to shift accordingly, changing the included angle of the cross link while maintaining the side length of the rhomboid hole formed by the cross link. This alters the size of the rhomboid flow hole. The size of the rhomboid flow hole can be adjusted according to different water flow rates, ensuring the generation of an optimal vortex flow field that satisfies collision conditions at varying flow rates. This avoids problems such as floc breakage due to excessive flow velocity caused by too small a mesh or insufficient vortex power due to too large a mesh, which hinders flocculation during flow fluctuations, thus improving the flocculation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the adjustable mesh component structure of this utility model; Figure 3 This is a schematic diagram of the adjustable mesh component and the assembly state of the adjustment component of this utility model; Figure 4 This is a schematic diagram of the exploded state structure of the cross link of this utility model; Figure 5 This is a schematic diagram showing the change in the area of ​​the rhomboid flow hole in this utility model.

[0016] In the diagram: 1. Inlet pipe; 2. Pool body; 3. Outlet pipe; 4. Drain pipe; 5. Second frame; 6. Third frame; 7. Fourth frame; 8. Slider; 9. First connecting rod; 10. Second connecting rod; 11. First through hole; 12. Second through hole; 13. Pin; 14. Connecting frame; 15. Adjusting bolt; 16. Connecting rod; 17. Spring; 18. Baffle; 19. Electromagnetic flowmeter; 20. Online turbidity meter; 21. Pressure transmitter; 22. Baffle. Detailed Implementation

[0017] 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.

[0018] like Figure 1 As shown, this utility model provides an adjustable grid plate for a flocculation tank: including a flocculation tank assembly, an adjustable grid assembly, an adjustment assembly, a sensor, and a control system; the adjustable grid assembly includes a fixed grid frame and cross links, the fixed grid frame includes a first frame, a second frame 5, a third frame 6, and a fourth frame 7; the cross links are formed by the cross connection of a first link 9 and a second link 10, forming a diamond-shaped flow hole; wherein, each end of the cross link is slidably installed in the first frame, the second frame 5, the third frame 6, and the fourth frame 7 via a slider 8.

[0019] Specifically, the flocculation tank assembly includes an inlet pipe 1, a tank body 2, a vent pipe 4, and an outlet pipe 3. Several vertical baffles 18 are spaced apart along the water flow direction within the tank body 2, forming independent shafts between adjacent vertical baffles 18. The adjustable mesh assembly is located within each independent shaft. The sensors include an electromagnetic flowmeter 19, an online turbidity meter 20, and a pressure transmitter 21. The electromagnetic flowmeter 19 is installed in the inlet pipe 1 of the tank body 2, while one online turbidity meter 20 and one pressure transmitter 21 are respectively installed in the inlet pipe 1 and the outlet pipe 3 of the tank body 2. A vent pipe 4 is located at the bottom of the tank body 2, and a vent valve is installed on the vent pipe 4 for discharging water from the tank during periodic cleaning and maintenance.

[0020] Therefore, each independent vertical shaft is equipped with several adjustable grid plates along the water flow direction. Each grid plate consists of a fixed frame including a first frame, a second frame 5, a third frame 6, a fourth frame 7, and intersecting links. The intersecting links form diamond-shaped flow holes, the area of ​​which can be changed by adjusting the components. The control system receives signals in real time from the electromagnetic flowmeter 19, the online turbidity meter 20, and the pressure transmitter 21, and sends control signals to the drive motor of the adjusting components, causing the motor to rotate the adjusting bolt 15. The adjusting bolt 15 pushes the slider 8 of the fourth frame 7 to move along the width direction through the connecting bracket 14, thereby changing the area of ​​the diamond-shaped flow holes formed by the intersecting links. The electromagnetic flowmeter 19, the online turbidity meter 20, and the pressure transmitter 21 can monitor the inlet flow rate, inlet turbidity, and outlet pressure, respectively.

[0021] Specifically, a sliding groove is provided on one side of the first frame, the second frame 5, the third frame 6, and the fourth frame 7. A plurality of sliders 8 are disposed in the sliding groove, and the sliders 8 can move along the length direction of the frame within the sliding groove. The sliders 8 in the fourth frame 7 can also move along the width direction of the fourth frame 7. An adjustment assembly is disposed on the side of the fourth frame 7 opposite to the second frame 5. The adjustment assembly includes an adjusting bolt 15, a nut, a connecting bracket 14, and a spring 17. The adjustment assembly is used to drive the sliders 8 in the fourth frame 7 to move along the width direction of the fourth frame 7, thereby changing the flow area of ​​the diamond-shaped flow hole.

[0022] refer to Figure 2 It can be seen that the first frame, the second frame 5, the third frame 6 and the fourth frame 7 are located on the right, the bottom, the left and the top respectively, and each frame has a groove on its inner side. Each frame has a slider 8 in its groove. The fourth frame 7 has a cross groove for rotating, which allows the slider 8 in the fourth frame 7 to move in the width and length directions.

[0023] The first connecting rod 9 and the second connecting rod 10 are respectively uniformly provided with a first through hole 11 and a second through hole 12. The distance between two adjacent first through holes 11 is equal to the distance between two adjacent second through holes 12, so that the four sides of the formed rhomboid flow hole are equal in length. The first through holes 11 and the second through holes 12 overlap and are rotatably connected by a pin 13.

[0024] A baffle 22 is provided at the lower end of the side of the third frame 6 near the fourth frame 7. The baffle 22 is arranged along the length of the third frame 6. The height of the baffle 22 covers the maximum extension stroke of the spring 17 in the adjustment assembly. It is used to close the potential flow gap in the extension area of ​​the spring 17 and ensure that the water flows only through the diamond-shaped flow hole.

[0025] refer to Figure 4 It can be seen that the first connecting rod 9 and the second connecting rod 10 are perpendicularly intersecting by default. A first through hole 11 and a second through hole 12 are respectively opened at the intersection position, and the first through hole 11 and the second through hole 12 are completely overlapped. They are connected by a pin 13, allowing the two connecting rods to rotate freely around the pin 13. At the same time, the two ends of each connecting rod are respectively hinged to the connecting parts of the slider 8 in the adjacent frame. Two adjacent first connecting rods 9 and two adjacent second connecting rods 10 form a diamond-shaped flow hole.

[0026] refer to Figure 3 It can be seen that the connecting frame 14 is arranged parallel to the fourth frame 7, and the bottom of the slider 8 of the fourth frame 7 is vertically fixed with a connecting rod 16, one end of which passes through the fourth frame 7. The adjusting bolt 15 passes through the connecting frame 14 laterally, and its end is rotatably connected to the fourth frame 7; one end of the spring 17 abuts against the fourth frame 7, and the other end abuts against the connecting frame 14.

[0027] Specifically, the adjusting bolt 15 is threadedly connected to the connecting frame 14, and the connecting frame 14 is fixedly connected to the slider 8 of the fourth frame 7 via the connecting rod 16. By rotating the adjusting bolt 15, the connecting frame 14 is driven to move along the width direction of the fourth frame 7, thereby causing the slider 8 to move along the width direction of the fourth frame 7. One end of the slider 8 in the fourth frame 7 is fixedly provided with the connecting rod 16, and the connecting rod 16 and the connecting frame 14 form a linkage structure, transmitting the driving force of the adjusting component to the slider 8.

[0028] Therefore, one end of the adjusting bolt 15 is rotatably connected to the fixed seat at the end of the fourth frame 7 via a bearing, and the other end passes through the connecting frame 14 and extends to the outside. The connecting frame 14 has a threaded hole in the middle that matches the adjusting bolt 15, and the bolt and the connecting frame 14 are engaged by threads. When it is necessary to adjust the size of the diamond-shaped flow hole, the control system drives the motor to rotate the adjusting bolt 15, and one end of the adjusting bolt 15 is fixed, thereby causing the connecting frame 14 to move along the bolt axis towards or away from the fourth frame 7, so that the spring 17 is compressed or released, and the slider 8 moves in the width direction in the fourth frame 7, thereby causing the end point of the cross link to move, so that the intersection angle of the first link 9 and the second link 10 changes.

[0029] Specifically, when the slider 8 in the fourth frame 7 moves closer to the second frame 5, the intersection angle between the first link 9 and the second link 10 decreases, and the area of ​​the flow hole decreases. When the slider 8 in the fourth frame 7 moves away from the second frame 5, the intersection angle between the first link 9 and the second link 10 increases, and the area of ​​the flow hole increases.

[0030] refer to Figure 5 The specific proof process for the change in the area of ​​the rhombic flow orifice is as follows: The first connecting rod and the second connecting rod intersect to form a rhombic flow orifice. The included angle between the first connecting rod 9 and the second connecting rod 10 is α. The area of ​​the rhombic flow orifice is S = d1 * d2 * 0.5. Initially, the spring is at its original length. When the spring is compressed, the rhombic flow orifice is compressed, and the included angle α decreases. d2 = 2 * L * cos( ), d1=2*L*sin( S = d2 * d1 * 0.5 = 2 * L2 * sin( )*cos( =L2*sin(a), that is, when the spring is compressed, the slider moves towards the second frame, the rhomboid flow hole is compressed, a becomes smaller, and S becomes smaller.

[0031] The specific workflow of this novel invention is as follows: With inlet pipe 1 and outlet pipe 3 open, water flows from inlet pipe 1 into pool 2. After being evenly distributed, the water enters the first independent vertical shaft of pool 2, where the rhomboid flow holes formed by the cross-linking rods are in their initial state. As the water flows through the vertical shafts, the rhomboid flow holes create a vortex flow field due to their turbulent effect. Colloidal and suspended particles in the water collide and aggregate under the influence of the vortex, forming flocs. The water flows through multiple vertical shafts in sequence, continuously carrying out the flocculation reaction.

[0032] When an increase in inlet flow is detected, the mesh size is adjusted by adjusting the adjustment component. Specifically, the adjusting bolt 15 is rotated to drive the connecting frame 14 to move outward along the width direction of the fourth frame 7. The connecting frame 14 drives the slider 8 in the fourth frame 7 to slide outward along the cross groove through the connecting rod 16. The intersection angle between the first connecting rod 9 and the second connecting rod 10 of the cross link increases, and the area of ​​the rhomboid flow hole increases.

[0033] When the inlet flow rate decreases, the adjusting bolt 15 is rotated in the opposite direction, and the connecting bracket 14 moves inward under the restoring force of the spring 17, which drives the slider 8 in the fourth frame 7 to slide inward. The cross angle of the cross link becomes smaller, and the area of ​​the rhomboid flow hole decreases.

[0034] 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 a process, method, article, or apparatus.

[0035] 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. An adjustable grid plate for a flocculation tank, comprising a flocculation tank assembly, an adjustable grid assembly, an adjustment assembly, sensors, and a control system; the adjustable grid assembly includes a fixed grid frame and cross links, the fixed grid frame including a first frame, a second frame, a third frame, and a fourth frame; the cross links are formed by the first link and the second link being cross-connected to form diamond-shaped flow holes; wherein, Each end of the cross link is slidably installed in the first frame, second frame, third frame and fourth frame via a slider.

2. The adjustable grid plate for a flocculation tank according to claim 1, characterized in that: The flocculation tank group includes an inlet pipe, a tank body, an vent pipe, and an outlet pipe. Several vertical baffles are spaced apart along the water flow direction in the tank body, and an independent vertical shaft is formed between two adjacent vertical baffles. The adjustable mesh component is set in the independent vertical shaft.

3. The adjustable grid plate for a flocculation tank according to claim 1, characterized in that: Each of the first, second, third, and fourth borders has a sliding groove on one side, and a plurality of sliders are provided in the sliding groove. The sliders can move along the length of the border in the sliding groove; wherein, the slider in the fourth border can also move along the width of the fourth border.

4. An adjustable grid plate for a flocculation tank according to claim 1, characterized in that: The first connecting rod and the second connecting rod are respectively uniformly provided with first through holes and second through holes. The distance between two adjacent first through holes is equal to the distance between two adjacent second through holes, so that the four sides of the formed rhomboid flow hole are equal in length. The first through holes and the second through holes overlap and are rotatably connected by a pin.

5. An adjustable grid plate for a flocculation tank according to claim 1, characterized in that: The adjustment component is located on the side of the fourth frame away from the second frame. The adjustment component includes an adjustment bolt, a nut, a connecting bracket, and a spring. The adjustment component is used to drive the slider in the fourth frame to move along the width direction of the fourth frame, thereby changing the flow interruption area of ​​the diamond-shaped flow hole.

6. An adjustable grid plate for a flocculation tank according to claim 5, characterized in that: The adjusting bolt is threadedly connected to the connecting frame, and the connecting frame is fixedly connected to the slider of the fourth frame through the connecting rod. By rotating the adjusting bolt, the connecting frame is driven to move along the width direction of the fourth frame, thereby driving the slider to move along the width direction of the fourth frame.

7. An adjustable grid plate for a flocculation tank according to claim 5, characterized in that: The first end of the spring abuts against the connecting frame, and the second end abuts against the fourth frame. A connecting rod is fixedly provided at one end of the slider in the fourth frame. The connecting rod and the connecting frame form a linkage structure to transmit the driving force of the adjustment component to the slider.

8. An adjustable grid plate for a flocculation tank according to claim 1, characterized in that: The sensors include an electromagnetic flow meter, an online turbidity meter, and a pressure transmitter. The electromagnetic flow meter is installed in the inlet pipe of the pool, and one online turbidity meter and one pressure transmitter are respectively installed in the inlet pipe and the outlet pipe of the pool.

9. An adjustable grid plate for a flocculation tank according to claim 1 or 5, characterized in that: A baffle is provided at the lower end of the third frame near the fourth frame. The baffle is arranged along the length of the third frame and its height covers the maximum extension stroke of the spring in the adjustment assembly. It is used to close the potential flow gap in the spring extension area and ensure that the water flows only through the diamond-shaped flow hole.

10. An adjustable grid plate for a flocculation tank according to claim 2, characterized in that: The bottom of the pool is equipped with a drain pipe and a drain valve, which is used to drain the water in the pool during regular cleaning and maintenance.

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