A flocculant dosing device

Abstract

The application relates to a flocculant feeding device which comprises a storage tank, the bottom surface of the storage tank is provided with a plurality of support frames, a cylinder with an open lower end is arranged in the middle of the storage tank, the lower end of the cylinder extends to the lower side of the storage tank, an inner tube is arranged in the middle of the inside of the cylinder, a float is movably arranged between the inner tube and the cylinder, the upper end of the float is open and movably arranged outside the inner tube, a plurality of feeding ports are formed in the circumferential direction on the inner wall of the cylinder and are connected with the bottom surface of the inside of the storage tank, a plurality of feeding ports are formed in the circumferential direction on the side wall of the inner tube, and the height of the feeding port is higher than that of the feeding port. The application has the effects of realizing automatic feeding of the flocculant, automatically adjusting the feeding amount according to the water volume of sewage, and improving the efficiency and treatment effect of sewage treatment.

Description

Technical Field

[0001] This application relates to the field of water treatment equipment technology, and in particular to a flocculant dispensing device. Background Technology

[0002] Flocculants are mainly composed of positively (or negatively) charged groups and negatively (or positively) charged particles or particles in water that are difficult to separate. They bring these particles closer together, lower their potential, and make them unstable. The flocculants then use their polymerization properties to aggregate these particles and separate them through physical or chemical methods. Agents used to achieve this purpose are generally called flocculants. Flocculants are mainly used in water supply and wastewater treatment.

[0003] In order to remove impurities from sewage in wastewater treatment ponds, flocculants need to be added to the sewage to make the impurities aggregate and be easily removed. During the sewage treatment process, the sewage treatment pond needs to continuously treat the sewage. Each time sewage is introduced into the sewage treatment pond, flocculants need to be added, and the amount added needs to be quantitative according to the sewage treatment volume. Currently, the addition of flocculants is done manually. Before adding flocculants, the sewage volume needs to be measured and the amount added should be based on the sewage volume. The operation process is cumbersome and inefficient. Summary of the Invention

[0004] To address the problems of existing flocculant dosing methods, which rely on manual dosing and require measuring wastewater volume before dosing, resulting in cumbersome and inefficient operations, this application provides a flocculant dosing device.

[0005] The flocculant dispensing device provided in this application adopts the following technical solution: A flocculant dispensing device includes a storage tank, a plurality of support frames are provided on the bottom surface of the storage tank, a cylindrical body with an open lower end is provided through the middle of the storage tank, the lower end of the cylindrical body extends to the bottom of the storage tank, an inner tube is sleeved in the middle of the inner body, a float is movably arranged between the inner tube and the cylindrical body, the upper end of the float is open and movably sleeved on the outside of the inner tube, a plurality of feed ports communicating with the bottom surface of the storage tank are opened circumferentially on the inner wall of the cylindrical body, and a plurality of dispensing ports are opened circumferentially on the side wall of the inner tube, the height of the dispensing ports is higher than the feed ports.

[0006] By adopting the above technical solution, the flocculant dosing device is installed inside the sewage treatment tank via a support frame. When there is no sewage in the sewage treatment tank, the float moves along the inner tube to the lower end of the tank under the action of gravity. At this time, the feed port on the inner wall of the tank opens, and the flocculant inside the storage tank falls into the float through the feed port until the upper surface of the flocculant inside the float is flush with the feed port. When sewage is injected into the sewage treatment tank, the sewage enters the tank and the inner tube through the opening at the lower end of the tank and the inner tube. As the sewage level rises, the float continues to rise, moving along the inner tube inside the tank. As the float moves upward, the side wall of the float closes the inlet, and the float carries the flocculant upward. When the upper surface of the flocculant moves to the inlet on the inner tube, the flocculant in the float enters the inner tube through the inlet and mixes with the sewage in the inner tube. As the sewage level continues to rise, the float also continues to move upward inside the cylinder. With the movement of the float, more and more flocculant enters the inner tube until the sewage reaches the highest liquid level. The float moves until the bottom surface of the float is level with the inlet, and all the flocculant inside the float enters the inner tube through the inlet to mix with the sewage, thus realizing automated flocculant dosing.

[0007] Optionally, an inner tank is provided above the inside of the cylinder. The upper end of the inner tank is open and its upper edge is fixedly connected to the upper end of the cylinder. The outer diameter of the inner tank is the same as the inner diameter of the float. A gap is formed between the inner tank and the inner wall of the cylinder for the float to enter. The bottom of the inner tank is connected to the inner tube. The delivery port is located at the connection between the inner tank and the inner tube.

[0008] By adopting the above technical solution, as the sewage level rises inside the cylinder, the float gradually fits onto the outside of the inner tank, and the side wall of the float enters the gap between the inner tank and the cylinder. Through the relative movement between the inner tank and the float, the flocculant inside the float is squeezed into the inlet, thereby improving the inlet efficiency.

[0009] Optionally, the inner tank is hollow, and a control valve communicating with the inside of the inner tube is provided on the bottom surface of the inner tank.

[0010] By adopting the above technical solution, the hollow interior of the inner tank can hold other types of wastewater treatment reagents, and the control valve between the inner tank and the inner pipe can transport the reagents to the inner pipe to mix with the wastewater, thereby improving the wastewater treatment effect and expanding the applicable scope of the flocculant dosing device.

[0011] Optionally, an end cap is provided on the top of the storage tank, and the end cap is provided with a first feed inlet communicating with the inside of the storage tank and a second feed inlet communicating with the inside of the inner tank.

[0012] By adopting the above technical solution, the first feed inlet is used to add flocculant into the storage tank, and the second feed inlet is used to add other reagents into the inner tank.

[0013] Optionally, a rotating shaft is rotatably provided in the middle of the bottom surface of the end cap. The rotating shaft passes through the inner tank and extends into the inner tube. A plurality of stirring rods are provided in the part of the rotating shaft located inside the inner tank and the inner tube. A motor for driving the rotating shaft to rotate is provided on the end cap.

[0014] By adopting the above technical solution, when the dosing device starts to add flocculant into the sewage treatment tank, the motor drives the rotating shaft to rotate, and the stirring rod continuously stirs inside the inner tube, so that the flocculant entering the inner tube through the dosing port is fully mixed with the sewage, thereby improving the dosing effect of the flocculant.

[0015] Optionally, a centrifugal fan blade is provided at the lower end of the cylinder, and the centrifugal fan blade is connected to the rotating shaft.

[0016] By adopting the above technical solution, during the flocculant dosing process, the rotating shaft drives the centrifugal fan blades to rotate continuously. The centrifugal fan blades transport the wastewater mixed with flocculant inside the inner tube to the surrounding area, thereby making the flocculant evenly dispersed in the wastewater and improving the flocculant dosing effect.

[0017] Optionally, the bottom surface of the storage tank is configured as a funnel shape.

[0018] By adopting the above technical solution, the bottom of the storage tank is set in a funnel shape, which facilitates the downward conveying of flocculant into the feed inlet.

[0019] Optionally, the bottom surface of the pontoon is provided with a funnel shape, and the inner tank has the same shape as the inner cavity of the pontoon.

[0020] By adopting the above technical solution, the bottom surface of the pontoon is set in a funnel shape to facilitate the delivery of flocculant inside the pontoon to the delivery port.

[0021] Optionally, a stop bar for limiting the position of the pontoon is provided inside the lower end of the cylinder.

[0022] By adopting the above technical solution and setting a stop bar, the float is prevented from detaching from the cylinder when it moves to the lower end of the cylinder.

[0023] Optionally, contact sensors are provided on the upper end of the cylinder and on the inner wall near the feed inlet.

[0024] By adopting the above technical solution, when the float moves upward under the action of buoyancy, it triggers the contact sensor at the feed inlet, thereby controlling the motor to start through the contact sensor. When the float moves to the uppermost end and triggers the contact sensor at the upper end of the cylinder, the motor stops running, thus realizing automated control.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. In this application, a floating pontoon is installed inside the cylinder. When there is no sewage in the sewage treatment tank, the pontoon is located at the bottom of the cylinder. The flocculant inside the storage tank falls into the pontoon by natural falling. When sewage is injected into the sewage treatment tank, the pontoon moves upward with the rise of the sewage level and releases the flocculant into the sewage through the inner pipe. This realizes the automatic release of flocculant and the automatic adjustment of the release amount according to the sewage volume, thereby improving the efficiency and treatment effect of sewage treatment.

[0027] 2. In this application, an inner tank is also provided inside the cylinder. The bottom of the inner tank is connected to an inner pipe through a control. The inner tank can store other wastewater treatment reagents, so that the flocculant dosing device can be used to do other reagents, thus expanding the applicability of the flocculant dosing device and improving the wastewater treatment effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a flocculant dispensing device in an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the internal structure of a flocculant dispensing device according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Storage tank; 2. Cylinder; 3. Inner tube; 4. Inner tank body; 5. Float; 6. Baffle; 7. Support frame; 8. End cap; 9. First feed inlet; 10. Second feed inlet; 11. Motor; 12. First storage chamber; 13. Gap; 14. Feed inlet; 15. Storage chamber; 16. Mixing chamber; 17. Movable chamber; 18. Dispensing port; 19. Control valve; 20. Rotating shaft; 21. Stirring rod; 22. Centrifugal fan blade; 23. Second storage chamber. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0032] Please see Figure 1-2It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this application and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this application, should still fall within the scope of the technical content disclosed in this application. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application's implementation.

[0033] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0034] This embodiment discloses a flocculant dispensing device.

[0035] Reference Figure 1 The storage tank 1 includes a funnel-shaped bottom surface and an end cap 8 connected to the top of the storage tank 1. The end cap 8 has a first feed inlet 9 and a second feed inlet 10. A motor 11 is located in the middle of the end cap 8. A cylinder 2 is located in the middle of the storage tank 1. The cylinder 2 penetrates the storage tank 1 and extends downward to the outside of the storage tank 1. Four sets of support frames 7 are located on the bottom edge of the storage tank 1.

[0036] Reference Figure 2A cylindrical body 2 is installed inside the storage tank 1, forming a first storage cavity 12 with a sloping ground between the storage tank 1 and the cylindrical body 2. A first feed inlet 9 on the end cap 8 connects to the first storage cavity 12. Several feed inlets 14 connecting to the first storage cavity 12 are arranged circumferentially on the inner wall of the cylindrical body 2, corresponding to the bottom surface of the storage tank 1. An inner tank 4 is located above the middle of the cylindrical body 2. The upper end face of the inner tank 4 is open and the interior is hollow, forming a second storage cavity 23. A second feed inlet 10 on the end cap 8 connects to the second storage cavity 23. The upper edge of the inner tank 4 is fixedly connected to the upper end of the cylindrical body 2. A gap 13 is formed between the outer surface of the inner tank 4 and the inner wall of the cylindrical body 2. An inner tube 3 is connected to the bottom of the inner tank 4. The interior of the inner tube 3 is hollow, forming a mixing cavity 16. A control valve 19 is provided on the bottom surface of the inner tank 4, and the control valve 19 connects to the second storage cavity. 23 and mixing chamber 16, several inlet ports 18 are evenly opened circumferentially on the side wall at the connection between inner tube 3 and inner tank 4, a movable chamber 17 is formed between inner tube 3 and cylinder 2, a float 5 that moves up and down is set inside the movable chamber 17, the float 5 is movably sleeved on inner tube 3, the upper end of float 5 is open, and a storage chamber 15 for holding flocculant is set inside, several baffles 6 are set between the lower end of cylinder 2 and inner tube 3 to support float 5, a rotating shaft 20 is rotatably set in the middle of the bottom surface of end cover 8, the rotating shaft 20 passes through inner tank 4 and extends into inner tube 3, several stirring rods 21 are set in the part of rotating shaft 20 located inside inner tank 4 and inner tube 3, a motor 11 is set on end cover 8 to drive rotating shaft 20, a centrifugal fan blade 22 is set at the lower end of cylinder 2, the centrifugal fan blade 22 is connected to rotating shaft 20.

[0037] The implementation principle of the flocculant dispensing device in this embodiment is as follows: The dispensing device is set inside the sewage treatment tank via a support frame 7. The flocculant is added to the first storage chamber 12 of the storage tank 1 through the first inlet 9 on the end cap 8. Other reagents are added to the second storage chamber 23 of the inner tank 4 through the second inlet 10. When there is no sewage inside the sewage treatment tank, the float 5 moves along the inner tube 3 under the action of gravity to the bottom of the movable chamber 17 formed between the inner tube 3 and the cylinder 2. At this time, the inlet 14 on the inner wall of the cylinder 2 is located above the float 5. The flocculant in the first storage chamber 12 is dispensing through the second inlet 14 on the inner wall of the cylinder 2 under the action of gravity. The feed inlet 14 enters the storage chamber 15 of the float 5 until the upper surface of the flocculant in the storage chamber 15 is flush with the feed inlet 14. When sewage is injected into the sewage treatment tank, the sewage enters the interior of the cylinder 2 and the inner tube 3 through the openings at the bottom of the cylinder 2 and the inner tube 3. Under the buoyancy of the sewage, the float 5 moves upward along the inner tube 3. When the float 5 moves upward, it closes the feed inlet 14. The float 5 drives the flocculant to move upward. When the upper surface of the flocculant moves to be flush with the inlet 18 on the inner tube 3, the flocculant enters the interior of the inner tube 3 through the inlet 18 under the guidance of the bottom surface of the inner tank 4. The float 5 triggers the feed inlet 14 when it moves upward. The contact sensor triggers the motor 11, which drives the shaft 20 to rotate. The shaft 20 then drives the stirring rod 21 to agitate the wastewater inside the inner tube 3. The flocculant enters the inner tube 3 through the inlet 18 and mixes evenly with the wastewater through the stirring rod 21. Simultaneously, the shaft 20 drives the centrifugal fan blades 22 to rotate, which evenly disperse the flocculant-mixed wastewater in the inner tube 3. As the wastewater level rises in the wastewater treatment tank, the float 5 also moves upwards. Through the squeezing action between the inner tank 4 and the float 5, the flocculant gradually flows through the inlet 18. 18 is added to the sewage until the sewage treatment tank is full. Then, the float 5 moves to the top inside the cylinder 2, triggering the contact sensor at the top of the cylinder 2, and the motor 11 stops running. At this time, all the flocculant inside the float 5 is added to the inner pipe 3 through the inlet and fully mixed with the sewage, thus realizing the automated addition of flocculant and automatically adjusting the addition amount according to the sewage volume. At the same time, the sewage treatment reagent inside the inner tank 4 can be injected into the inner pipe 3 to mix with the sewage by controlling the opening and closing of the control valve 19 on the bottom of the inner tank 4, further improving the sewage treatment effect and expanding the applicable range of the flocculant addition device.

[0038] In summary, this application incorporates a floating pontoon inside the cylindrical body. When the wastewater treatment tank is empty, the pontoon is located at the bottom of the cylindrical body, and the flocculant inside the storage tank falls naturally into the pontoon. When wastewater is injected into the treatment tank, the pontoon moves upward with the rising wastewater level, dispensing the flocculant into the wastewater through the inner pipe. This achieves automated flocculant dispensing and automatically adjusts the dosage based on the wastewater volume, improving the efficiency and effectiveness of wastewater treatment. Furthermore, this application includes an inner tank inside the cylindrical body. The bottom of the inner tank is connected to an inner pipe via a control system. The inner tank can store other wastewater treatment reagents, allowing the flocculant dispensing device to be used for dispensing other reagents, expanding its applicability and further enhancing wastewater treatment effectiveness. Therefore, this application effectively overcomes the various shortcomings of existing technologies and possesses high industrial applicability.

[0039] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered within the protection scope of this application.

Claims

1. A flocculant dispensing device, characterized in that, The system includes a storage tank (1), with several support frames (7) on the bottom surface of the storage tank (1). A cylindrical body (2) with an open bottom is provided through the middle of the storage tank (1). The lower end of the cylindrical body (2) extends to the bottom of the storage tank (1). An inner tube (3) is sleeved in the middle of the inner tube (2). A float (5) is movably arranged between the inner tube (3) and the cylindrical body (2). The float (5) has an open top and is movably sleeved on the outside of the inner tube (3). Several feed inlets (14) communicating with the bottom surface of the storage tank (1) are opened along the circumferential direction on the inner wall of the cylindrical body (2). Several discharge ports (18) are opened along the circumferential direction on the side wall of the inner tube (3). The height of the discharge ports (18) is higher than that of the feed inlets (14). An inner tank (4) is provided above the inside of the cylinder (2). The upper end of the inner tank (4) is open and its upper edge is fixedly connected to the upper end of the cylinder (2). The outer diameter of the inner tank (4) is the same as the inner diameter of the float (5). A gap (13) is formed between the inner tank (4) and the inner wall of the cylinder (2) for the float (5) to enter. The bottom of the inner tank (4) is connected to the inner tube (3). The feeding port (18) is located at the connection between the inner tank (4) and the inner tube (3). Contact sensors are provided on the upper end of the cylinder (2) and on the inner wall near the feed port (14).

2. The flocculant dispensing device according to claim 1, characterized in that: The inner tank (4) is hollow inside, and a control valve (19) is provided on the bottom surface of the inner tank (4) to connect to the inside of the inner tube (3).

3. The flocculant dispensing device according to claim 2, characterized in that: An end cap (8) is provided on the top of the storage tank (1). The end cap (8) is provided with a first feed inlet (9) that connects to the inside of the storage tank (1) and a second feed inlet (10) that connects to the inside of the inner tank (4).

4. The flocculant dispensing device according to claim 3, characterized in that: A rotating shaft (20) is rotatably provided in the middle of the bottom surface of the end cap (8). The rotating shaft (20) passes through the inner tank (4) and extends into the inner tube (3). A number of stirring rods (21) are provided in the part of the rotating shaft (20) located inside the inner tank (4) and the inner tube (3). A motor (11) for driving the rotating shaft (20) to rotate is provided on the end cap (8).

5. The flocculant dispensing device according to claim 4, characterized in that: The lower end of the cylinder (2) is provided with centrifugal fan blades (22), which are connected to the rotating shaft (20).

6. The flocculant dispensing device according to claim 1, characterized in that: The bottom of the storage tank (1) is shaped like a funnel.

7. The flocculant dispensing device according to claim 1, characterized in that: The bottom surface of the float (5) is set in a funnel shape, and the inner tank (4) has the same shape as the inner cavity of the float (5).

8. The flocculant dispensing device according to claim 1, characterized in that: The lower end of the cylinder (2) is provided with a stop bar (6) for limiting the position of the pontoon (5).

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