Quantitative dosing equipment for sewage treatment

Abstract

This utility model discloses a quantitative dosing device for wastewater treatment, belonging to the field of wastewater treatment technology. It includes a mixing tank equipped with an agitation mechanism, a powder inlet on the top surface of the mixing tank, and a dosing seat fixedly connected to the top surface of the mixing tank. In this utility model, a first motor drives an incomplete gear to rotate. The transmission between the incomplete gear and the spur gear drives the spur gear, drive shaft, upper partition, and lower partition to rotate intermittently. When the upper drain hole on the upper partition aligns with the powder storage tank, the powder in the powder storage hopper enters the inner cavity of the powder storage tank. At this time, the lower partition seals the bottom of the powder storage tank. When the lower drain hole on the lower partition aligns with the powder storage tank, the upper partition seals the top of the inner cavity of the powder storage tank, allowing the powder in the inner cavity of the powder storage tank to be added to the mixing tank through the lower drain hole and the powder inlet, thus achieving quantitative dosing and ensuring the accuracy of the dosing amount.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a quantitative dosing device for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of removing or reducing pollutants from wastewater and sewage, aiming to treat it to meet environmental water quality standards for safe discharge or recycling. Wastewater treatment can effectively remove pollutants, protect the environment, maintain public health, and achieve the sustainable use of water resources. During the wastewater treatment process, chemical powders or solutions need to be added to the wastewater as needed.

[0003] A search revealed that utility model patent CN222034575U discloses a quantitative feeding device for sewage treatment, including a feeding box with a feeding port on one side and a transmission groove on the side away from the feeding port. Sliding grooves are located at the top and bottom of the feeding box near the transmission groove, with a first baffle and a second baffle slidably connected within each groove. A rack is fixedly connected to the end of each baffle away from the feeding port. Starting a motor drives the first and second baffles to reciprocate via a rotating shaft. The reciprocating motion of the first and second baffles divides and quantitatively dispenses the falling powder, reducing the labor intensity of workers and making the powder dispensing more precise, thus improving the sewage treatment effect.

[0004] However, the above-mentioned patent still has the following shortcomings: during the process of the first baffle and the second baffle moving in opposite directions, there is a gap in the feed port that is not blocked by the first baffle and the second baffle, which will cause too much powder above the feed port to be added into the mixing tank, resulting in poor quantitative dosing effect; and it is not convenient to adjust the amount of powder for quantitative dosing, which is not practical. Therefore, we propose a quantitative dosing device for sewage treatment. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a quantitative dosing device for sewage treatment.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A quantitative dosing device for wastewater treatment includes a mixing tank with an agitation mechanism. A powder inlet is located on the top surface of the mixing tank. A dosing base is fixedly connected to the top surface of the mixing tank, and a powder storage tank is provided on the dosing base. A powder storage hopper is fixedly connected to the top surface of the dosing base, above the powder storage tank, and a hopper cover is fitted onto the top of the powder storage hopper. An adjustment mechanism is provided on the side of the dosing base. A drive groove is provided inside the dosing base. A lower rotating groove is provided at the bottom of the inner cavity of the drive groove, and an upper rotating groove is provided at the top of the inner cavity of the drive groove. Both the side of the upper rotating groove and the inner cavity of the powder storage tank are connected. The inner cavity of the driving groove is rotatably connected to a drive shaft. A spur gear is fixedly sleeved on the outer side of the drive shaft. A first motor is fixedly installed on the inner wall of the driving groove. An incomplete gear is fixedly sleeved on the output shaft of the first motor. The incomplete gear and the spur gear mesh intermittently. A lower partition plate is fixedly sleeved on the outer side of the bottom end of the drive shaft and located in the inner cavity of the lower rotating groove. A lower drain hole is provided on the lower partition plate. An upper partition plate is fixedly sleeved on the outer side of the top end of the drive shaft and located in the inner cavity of the upper rotating groove. An upper drain hole is provided on the upper partition plate.

[0008] In a preferred embodiment of this utility model, the adjusting mechanism includes two movable slots formed on the side of the dosing seat. The ends of the two movable slots are respectively connected to the inner cavity of the powder storage tank. A support seat is fixedly connected to the inner wall of each of the two movable slots. A bidirectional lead screw is rotatably connected between the two support seats. Moving blocks are threaded onto the outer sides of both ends of the bidirectional lead screw. Piston blocks are fixedly connected to the ends of the two moving blocks. The two piston blocks are movably sleeved into the inner cavity of the movable slots. The side of the piston block is in contact with the inner wall of the movable slot. A second motor is fixedly installed on the outer side of one of the support seats. The output shaft of the second motor is connected to the end of the bidirectional lead screw through a coupling.

[0009] As a preferred embodiment of this utility model, the stirring mechanism includes a mounting frame fixedly connected to the top surface of the mixing tank, a third motor fixedly mounted on the top of the mounting frame, the output shaft of the third motor extending into the inner cavity of the mixing tank and fixedly connected to a stirring rod via a coupling, and multiple stirring plates fixedly connected to the side of the stirring rod.

[0010] As a preferred embodiment of this utility model, a water inlet pipe is provided at the top of the mixing tank, and a drain valve is fixedly installed on the side of the bottom end of the mixing tank, with the end of the drain valve extending into the inner cavity of the mixing tank.

[0011] As a preferred embodiment of this utility model, a viewing plate is provided on the side of the dosing seat and on the outside of the inner cavity of the powder storage tank, and a capacity scale is provided on the viewing plate.

[0012] As a preferred embodiment of this utility model, the positions of the powder inlet, powder storage tank, upper drain hole, and lower drain hole are matched.

[0013] In a preferred embodiment of this utility model, the outer side of the upper partition plate is fitted with the inner wall of the upper rotating groove, and the outer side of the lower partition plate is fitted with the inner wall of the lower rotating groove.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) In this utility model, the first motor drives the incomplete gear to rotate, and the transmission between the incomplete gear and the spur gear drives the spur gear, the transmission shaft, the upper partition and the lower partition to rotate intermittently. When the upper leakage hole on the upper partition is aligned with the powder storage tank, the powder in the inner cavity of the powder storage hopper enters the inner cavity of the powder storage tank. At this time, the lower partition seals the bottom of the powder storage tank. When the lower leakage hole on the lower partition is aligned with the powder storage tank, the upper partition seals the top of the inner cavity of the powder storage tank, so that the powder in the inner cavity of the powder storage tank can be added into the mixing tank from the lower leakage hole and the powder inlet, thus realizing the function of quantitative drug dosing and ensuring the accuracy of drug dosing.

[0016] (2) In this utility model, the second motor drives the bidirectional lead screw to rotate, and the threaded transmission between the bidirectional lead screw and the two moving blocks drives the piston blocks to move closer or further away from each other. The position of the ends of the two piston blocks in the inner cavity of the powder storage tank is used to adjust the space of the powder storage tank. The capacity of the inner cavity of the powder storage tank is controlled by the transparent plate and the capacity scale, so as to realize the control and adjustment of the amount of quantitative feeding. It has good practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the drug dispensing seat of this utility model;

[0020] Figure 4 This is a schematic diagram showing the dispensing base, upper partition, and lower partition of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the powder storage tank of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the drive slot of this utility model;

[0023] Figure 7 This is a cross-sectional schematic diagram of the drug dispensing stand of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Mixing tank; 2. Stirring mechanism; 3. Powder inlet; 4. Dosing seat; 5. Powder storage tank; 6. Adjusting mechanism; 7. Powder storage hopper; 8. Hopper cover; 9. Drive slot; 10. Upper rotating slot; 11. Lower rotating slot; 12. Drive shaft; 13. Spur gear; 14. First motor; 15. Incomplete gear; 16. Upper partition; 17. Upper drain hole; 18. Lower partition; 19. Lower drain hole; 20. Movable slot; 21. Support base; 22. Two-way lead screw; 23. Moving block; 24. Piston block; 25. Perspective plate; 26. Capacity scale; 27. Second motor; 28. Mounting bracket; 29. ​​Third motor; 30. Stirring rod; 31. Stirring plate; 32. Water inlet pipe; 33. Drain valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1:

[0030] Please see Figure 1-7A quantitative dosing device for wastewater treatment includes a mixing tank 1, an agitation mechanism 2, a powder inlet 3 on the top surface of the mixing tank 1, a dosing seat 4 fixedly connected to the top surface of the mixing tank 1, a powder storage tank 5 on the dosing seat 4, a powder storage hopper 7 fixedly connected to the top surface of the dosing seat 4 and above the powder storage tank 5, a hopper cover 8 fitted on the top of the powder storage hopper 7, an adjustment mechanism 6 on the side of the dosing seat 4, a drive groove 9 inside the dosing seat 4, a lower rotating groove 11 at the bottom of the inner cavity of the drive groove 9, and an upper rotating groove 10 at the top of the inner cavity of the drive groove 9. All parts are connected to the inner cavity of the powder storage tank 5. The inner cavity of the drive tank 9 is rotatably connected to the drive shaft 12. The outer side of the drive shaft 12 is fixedly sleeved with a spur gear 13. The inner wall of the drive tank 9 is fixedly installed with a first motor 14. The output shaft of the first motor 14 is fixedly sleeved with an incomplete gear 15. The incomplete gear 15 and the spur gear 13 mesh intermittently. The outer side of the bottom end of the drive shaft 12 and the inner cavity of the lower rotating tank 11 is fixedly sleeved with a lower partition plate 18. The lower partition plate 18 is provided with a lower drain hole 19. The outer side of the top end of the drive shaft 12 and the inner cavity of the upper rotating tank 10 is fixedly sleeved with an upper partition plate 16. The upper partition plate 16 is provided with an upper drain hole 17.

[0031] In this embodiment, the upper partition 16 and the lower partition 18 are made of thin plates, which are as thin as possible while ensuring strength, such as 0.3 mm stainless steel plates, to ensure that the upper leakage holes 17 and lower leakage holes 19 on the upper partition 16 and the lower partition 18 can smoothly shear the powder and cause rotation. In addition, the outer diameters of the incomplete gear 15 and the spur gear 13 are the same, and the outer teeth of the incomplete gear 15 are half the outer teeth of the spur gear 13, so that the rotation of the incomplete gear 15 for two revolutions drives the spur gear 13 to rotate for one revolution, thereby driving the upper partition 16 and the lower partition 18 to rotate intermittently by 180 degrees.

[0032] For details, please refer to Figures 1 to 6 The adjusting mechanism 6 includes two movable slots 20 on the side of the dosing seat 4. The ends of the two movable slots 20 are respectively connected to the inner cavity of the powder storage tank 5. The inner walls of the two movable slots 20 are fixedly connected to the support seats 21. A double-acting screw 22 is rotatably connected between the two support seats 21. The outer sides of the two ends of the double-acting screw 22 are respectively threaded with moving blocks 23. The ends of the two moving blocks 23 are respectively fixedly connected to piston blocks 24. The two piston blocks 24 are respectively movably sleeved into the inner cavity of the movable slots 20. The side of the piston block 24 is in contact with the inner wall of the movable slot 20. A second motor 27 is fixedly installed on the outer side of one support seat 21. The output shaft of the second motor 27 is connected to the end of the double-acting screw 22 through a coupling.

[0033] In this embodiment, a controller is provided on the top of the mixing tank 1 to control the second motor 27, the first motor 14 and the third motor 29. The device is powered by an external power supply, which is existing technology and will not be described in detail.

[0034] For details, please refer to Figure 1 and Figure 2 The stirring mechanism 2 includes a mounting bracket 28 fixedly connected to the top surface of the mixing tank 1. A third motor 29 is fixedly mounted on the top of the mounting bracket 28. The output shaft of the third motor 29 extends into the inner cavity of the mixing tank 1 and is fixedly connected to a stirring rod 30 via a coupling. Multiple stirring plates 31 are fixedly connected to the side of the stirring rod 30.

[0035] In this embodiment, the third motor 29 drives the stirring rod 30 and the stirring plate 31 to rotate, and the stirring plate 31 is used to stir and mix the sewage and the agent, thereby accelerating the efficiency of sewage treatment.

[0036] For details, please refer to Figure 1 A water inlet pipe 32 is provided on the top of the mixing tank 1, and a drain valve 33 is fixedly installed on the side of the bottom end of the mixing tank 1. The end of the drain valve 33 extends into the inner cavity of the mixing tank 1.

[0037] In this embodiment, wastewater is introduced into the inner cavity of the mixing tank 1 through the inlet pipe 32, and the treated wastewater is discharged through the drain valve 33.

[0038] For details, please refer to Figure 3 and Figure 4 A viewing plate 25 is provided on the side of the dosing seat 4 and on the outside of the inner cavity of the powder storage tank 5. A capacity scale 26 is provided on the viewing plate 25.

[0039] In this embodiment, the size of the inner cavity of the powder storage tank 5 is viewed through the transparent plate 25, and the size of the inner cavity of the powder storage tank 5 is controlled by the capacity scale 26. The size of the inner cavity of the powder storage tank 5 is adjusted by moving the two piston blocks 24.

[0040] For details, please refer to Figures 2 to 6 The positions of powder inlet 3, powder storage tank 5, upper drain hole 17 and lower drain hole 19 are matched.

[0041] In this embodiment, the powder inlet 3 and the powder storage tank 5 are aligned vertically, and the upper leakage hole 17 and the lower leakage hole 19 are intermittently aligned with the powder inlet 3 and the powder storage tank 5, so as to ensure that the powder in the inner cavity of the powder storage hopper 7 can smoothly enter the powder storage tank 5, and to ensure that the powder in the inner cavity of the powder storage tank 5 can be added to the mixing tank 1 from the powder inlet 3.

[0042] For details, please refer to Figure 4 , Figure 6 and Figure 7The outer side of the upper partition 16 is in contact with the inner wall of the upper rotating groove 10, and the outer side of the lower partition 18 is in contact with the inner wall of the lower rotating groove 11.

[0043] In this embodiment, the sealing between the upper partition 16 and the inner wall of the upper rotating groove 10 is ensured, and the sealing between the lower partition 18 and the inner wall of the lower rotating groove 11 is also ensured, so as to prevent the powder in the inner cavity of the powder storage tank 5 from entering the contact surface between the upper partition 16 and the upper rotating groove 10, and between the lower partition 18 and the lower rotating groove 11. In addition, the lower partition 18, the upper partition 16 and the drug dosing seat 4 are all made of wear-resistant material to avoid wear.

[0044] Working principle: In use, first remove the hopper cover 8 and add the powder to be added into the inner cavity of the powder storage hopper 7. Then, introduce wastewater into the inner cavity of the mixing tank 1 through the water inlet pipe 32. Start the third motor 29 to drive the mixing rod 30 and the mixing plate 31 to rotate, using the mixing plate 31 to agitate the wastewater. Then, start the second motor 27 to drive the bidirectional lead screw 22 to rotate. Through the threaded transmission between the bidirectional lead screw 22 and the two moving blocks 23, the piston blocks 24 move closer or further apart. The end of block 24 is positioned within the powder storage tank 5 to adjust the powder storage space within the tank 5. The capacity of the powder storage tank 5 is controlled using the viewing plate 25 and the capacity scale 26. Then, the first motor 14 is started to drive the incomplete gear 15 to rotate slowly for two revolutions. In the original state, the upper leakage hole 17 on the upper partition 16 is aligned with the powder storage tank 5. At this time, the powder in the powder storage hopper 7 enters the inner cavity of the powder storage tank 5 through the upper leakage hole 17. When the gear teeth on the incomplete gear 15 and the spur gear 1... 3. During the first transmission, the spur gear 13, drive shaft 12, upper partition 16, and lower partition 18 all rotate 180 degrees. At this time, the upper leakage hole 17 on the upper partition 16 is no longer aligned with the powder storage tank 5. The upper partition 16 seals the top of the inner cavity of the powder storage tank 5, preventing the powder in the inner cavity of the powder storage hopper 7 from entering the inner cavity of the powder storage tank 5. At the same time, the lower leakage hole 19 on the lower partition 18 is aligned with the inner cavity of the powder storage tank 5, so that the powder in the inner cavity of the powder storage tank 5 can exit through the lower leakage hole 19 and the powder inlet 3. The wastewater added to the inner cavity of the mixing tank 1 is stirred by the stirring plate 31 to ensure thorough mixing. Finally, when the gear teeth on the incomplete gear 15 and the spur gear 13 drive for the second time, the upper partition plate 16 and the lower partition plate 18 rotate 180 degrees again, so that the lower partition plate 18 seals the bottom of the inner cavity of the powder storage tank 5, and the upper leakage hole 17 on the upper partition plate 16 is aligned with the top of the inner cavity of the powder storage tank 5 again, so that the medicine in the inner cavity of the powder storage hopper 7 re-enters the inner cavity of the powder storage tank 5.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A sewage treatment dosing apparatus comprising a stirring barrel (1), characterized in that: The mixing tank (1) is provided with a stirring mechanism (2), the top surface of the mixing tank (1) is provided with a powder inlet (3), the top surface of the mixing tank (1) is fixedly connected with a dosing seat (4), the dosing seat (4) is provided with a powder storage tank (5), the top surface of the dosing seat (4) and above the powder storage tank (5) is fixedly connected with a powder storage hopper (7), the top of the powder storage hopper (7) is fitted with a hopper cover (8), the side of the dosing seat (4) is provided with an adjustment mechanism (6), the inside of the dosing seat (4) is provided with a driving groove (9), the bottom of the inner cavity of the driving groove (9) is provided with a lower rotating groove (11), the top of the inner cavity of the driving groove (9) is provided with an upper rotating groove (10), the sides of the lower rotating groove (11) and the upper rotating groove (10) are connected to the powder storage tank ( 5) The inner cavity is connected, and the inner cavity of the drive groove (9) is rotatably connected to the drive shaft (12). The outer side of the drive shaft (12) is fixedly sleeved with a spur gear (13). The inner wall of the drive groove (9) is fixedly installed with a first motor (14). The output shaft of the first motor (14) is fixedly sleeved with an incomplete gear (15). The incomplete gear (15) and the spur gear (13) mesh intermittently. The outer side of the bottom end of the drive shaft (12) and the inner cavity of the lower rotating groove (11) are fixedly sleeved with a lower partition plate (18). The lower partition plate (18) is provided with a lower drain hole (19). The outer side of the top end of the drive shaft (12) and the inner cavity of the upper rotating groove (10) are fixedly sleeved with an upper partition plate (16). The upper partition plate (16) is provided with an upper drain hole (17).

2. The apparatus according to claim 1, wherein: The adjustment mechanism (6) includes two movable slots (20) on the side of the dosing seat (4). The ends of the two movable slots (20) are respectively connected to the inner cavity of the powder storage tank (5). The inner walls of the two movable slots (20) are fixedly connected to support seats (21). A double-acting screw (22) is rotatably connected between the two support seats (21). The outer sides of the two ends of the double-acting screw (22) are respectively threaded with moving blocks (23). The ends of the two moving blocks (23) are respectively fixedly connected to piston blocks (24). The two piston blocks (24) are respectively movably sleeved into the inner cavity of the movable slot (20). The side of the piston block (24) is in contact with the inner wall of the movable slot (20). A second motor (27) is fixedly installed on the outer side of one of the support seats (21). The output shaft of the second motor (27) and the end of the double-acting screw (22) are connected by a coupling.

3. The apparatus according to claim 1, wherein: The stirring mechanism (2) includes a mounting frame (28) fixedly connected to the top surface of the mixing tank (1). A third motor (29) is fixedly mounted on the top of the mounting frame (28). The output shaft of the third motor (29) extends into the inner cavity of the mixing tank (1) and is fixedly connected to a stirring rod (30) via a coupling. Multiple stirring plates (31) are fixedly connected to the side of the stirring rod (30).

4. The apparatus according to claim 1, wherein: The top of the mixing tank (1) is provided with a water inlet pipe (32), and a drain valve (33) is fixedly installed on the side of the bottom end of the mixing tank (1). The end of the drain valve (33) extends into the inner cavity of the mixing tank (1).

5. The apparatus according to claim 1, wherein: A viewing plate (25) is provided on the side of the dosing station (4) and outside the inner cavity of the powder storage tank (5), and a capacity scale (26) is provided on the viewing plate (25).

6. The apparatus according to claim 1, wherein: The positions of the powder inlet (3), powder storage tank (5), upper drain hole (17) and lower drain hole (19) are matched.

7. A quantitative dosing device for wastewater treatment according to claim 1, characterized in that: The outer side of the upper partition (16) is in contact with the inner wall of the upper rotating groove (10), and the outer side of the lower partition (18) is in contact with the inner wall of the lower rotating groove (11).

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