Coagulant stirring and adding device for wastewater treatment

Abstract

The utility model relates to the technical field of coagulant stirring and feeding, and discloses a coagulant stirring and feeding device for wastewater treatment, which comprises a storage tank and a support frame, the storage tank is arranged on the support frame, a metering pump is arranged on the support frame, a discharge pipe is arranged at the bottom of the storage tank, and the other end of the discharge pipe is connected with an absorption end of the metering pump. A conveying pipe is arranged at the output end of the metering pump, a water inlet pipe is arranged at the top of the storage tank, a reciprocating stirring assembly is arranged in the storage tank, two limiting assemblies are arranged on the two sides of the reciprocating stirring assembly, and a cleaning assembly which reciprocates along the two limiting assemblies and cleans the inner wall of the storage tank is arranged on the reciprocating stirring assembly. The cleaning assembly is provided with two mixing assemblies matched with the two limiting assemblies, and the top of the storage tank is provided with a driving assembly for driving the reciprocating stirring assembly to rotate, so that chemicals on the inner wall of the storage tank cannot be adsorbed on the inner wall of the storage tank, it is guaranteed that the powdery chemicals are fully mixed with water, and therefore a certain proportion is guaranteed.

Description

Technical Field

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

[0002] Wastewater treatment coagulant mixing and dosing device is a device used to add coagulants to wastewater. Its purpose is to remove colloids and suspended solids in wastewater by fully mixing the coagulant with the wastewater. The coagulant solution is mainly composed of metal salts, organic coagulants, silicates and polymers, most of which are in powder form. They need to be mixed with water in a storage tank to form coagulants.

[0003] In existing coagulant mixing and dosing devices, if the mixing of agent powder and water is insufficient or the wettability of the powder and water is poor, some powder may not be completely dissolved or dispersed in the water, and thus be adsorbed on the inner wall of the storage tank. This will affect the uniformity of the coagulant and have an adverse impact on subsequent process operations and product quality. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a coagulant stirring and dosing device for wastewater treatment, so as to solve the problem in the background art that insufficient stirring or poor wettability of powder and water may lead to some powder not being completely dissolved or dispersed in water, and thus adsorbed on the inner wall of the storage tank.

[0005] This utility model provides the following technical solution: a coagulant stirring and dosing device for wastewater treatment, comprising a storage tank and a support frame. The storage tank is mounted on the support frame, and a metering pump is mounted on the support frame. A discharge pipe is mounted at the bottom of the storage tank, and the other end of the discharge pipe is connected to the absorption end of the metering pump. A conveying pipe is mounted on the output end of the metering pump. A water inlet pipe is mounted at the top of the storage tank. A reciprocating stirring assembly is mounted inside the storage tank. Two sets of limiting components are mounted on both sides of the reciprocating stirring assembly. A cleaning component is mounted on the reciprocating stirring assembly to move back and forth along the two sets of limiting components and clean the inner wall of the storage tank. Two sets of mixing components are mounted on the cleaning component to cooperate with the two sets of limiting components. The two sets of mixing components are symmetrically arranged. When the cleaning component moves, it can drive the two sets of mixing components to move back and forth and rotate along the corresponding limiting components. A drive component is mounted at the top of the storage tank to drive the reciprocating stirring assembly to rotate.

[0006] Furthermore, the drive assembly includes a motor and a drive rod. The drive rod is installed inside the storage tank, with one end extending through the top of the storage tank and fixedly connected to the output end of the motor. The drive rod is rotatably connected to the top of the storage tank, and the motor is fixed to the top of the storage tank.

[0007] Furthermore, the reciprocating stirring assembly includes a reciprocating lead screw, a rotating rod, and several stirring rods. One end of the reciprocating lead screw is fixedly connected to the power rod, one end of the rotating rod is fixedly connected to the other end of the reciprocating lead screw, and the several stirring rods are all fixed on the rotating rod.

[0008] Furthermore, the limiting assembly includes a fixed plate, a limiting groove, and two racks. The top of the fixed plate is fixedly connected to the top of the storage tank. The limiting groove is formed on the fixed plate, and the two racks are fixedly installed on the fixed plate and located on both sides of the limiting groove.

[0009] Furthermore, the cleaning assembly includes a limiting plate, two connecting plates, and an annular scraper. The limiting plate is sleeved on the reciprocating screw, and the corresponding two sides of the limiting plate extend into the limiting groove and slide in cooperation with the limiting groove. One end of the two connecting plates is fixedly connected to the limiting plate, and the two connecting plates are symmetrically arranged. The annular scraper is fixedly connected to the other end of the two connecting plates and fits against the inner wall of the storage tank.

[0010] Furthermore, the mixing assembly includes two gears, two connecting rods, and two stirring blades. One end of each connecting rod is rotatably connected to both sides of the limiting plate. The two gears are fixedly mounted on their respective connecting rods. The two stirring blades are fixedly connected to the other end of their respective connecting rods. The two gears mesh with their respective racks.

[0011] Furthermore, a controller is installed on the support frame, which is electrically connected to the motor and the metering pump, and controls the metering pump and the motor through the controller.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the reciprocating screw rotates, and due to the limiting groove, the limiting plate moves back and forth along the limiting groove, driving the two connecting plates and two sets of mixing components to move synchronously. The two connecting plates drive the annular scraper to move synchronously, and the annular scraper scrapes the powdered medicine adsorbed on the inner wall of the storage tank, so that the medicine on the inner wall of the storage tank will not be adsorbed on the inner wall of the storage tank, ensuring that the powdered medicine and water are fully mixed, thereby ensuring a certain ratio.

[0014] 2. This utility model uses a limiting plate to move, which in turn drives two connecting rods, two gears, and two stirring blades to move synchronously. Because the gears mesh with the rack, the gears roll along the rack. When the gears roll downwards along the rack, they drive the connecting rods to rotate, and the connecting rods drive the stirring blades to rotate forward. When the gears roll upwards along the rack, the connecting rods and stirring blades rotate in opposite directions, causing the stirring blades to move up and down while rotating. This accelerates the rapid mixing of powdered medicine with water, thereby increasing the mixing effect. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the storage tank of this utility model;

[0017] Figure 3 This is a schematic diagram of the reciprocating stirring assembly of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0019] The attached diagram is labeled as follows: 1. Storage tank; 2. Support frame; 3. Metering pump; 4. Discharge pipe; 5. Conveying pipe; 6. Water inlet pipe; 7. Reciprocating stirring assembly; 701. Reciprocating lead screw; 702. Rotating rod; 703. Stirring rod; 8. Limiting assembly; 801. Fixing plate; 802. Limiting groove; 803. Rack; 9. Cleaning assembly; 901. Limiting plate; 902. Connecting plate; 903. Annular scraper; 10. Mixing assembly; 1001. Gear; 1002. Connecting rod; 1003. Stirring blade; 11. Drive assembly; 1101. Motor; 1102. Power rod; 12. Controller. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 4 The present invention will be further described below.

[0022] This utility model discloses a coagulant stirring and dosing device for wastewater treatment, including a storage tank 1 and a support frame 2. The storage tank 1 is mounted on the support frame 2, and a metering pump 3 is mounted on the support frame 2. A discharge pipe 4 is mounted at the bottom of the storage tank 1, and the other end of the discharge pipe 4 is connected to the absorption end of the metering pump 3. A conveying pipe 5 is mounted on the output end of the metering pump 3. A water inlet pipe 6 is mounted at the top of the storage tank 1. A reciprocating stirring assembly 7 is mounted inside the storage tank 1. Two sets of limiting components 8 are mounted on both sides of the reciprocating stirring assembly 7. A cleaning assembly 9 is mounted on the reciprocating stirring assembly 7 to move back and forth along the two sets of limiting components 8 and clean the inner wall of the storage tank 1. Two sets of mixing components 10 are mounted on the cleaning assembly 9 to cooperate with the two sets of limiting components 8. The two sets of mixing components 10 are symmetrically arranged. When the cleaning assembly 9 moves, it can drive the two sets of mixing components 10 to move back and forth and make the mixing components 10 rotate along the corresponding limiting components 8. A drive assembly 11 is mounted at the top of the storage tank 1 to drive the reciprocating stirring assembly 7 to rotate.

[0023] In this implementation scheme, when in use, the inlet pipe 6 is connected to an external water source, allowing water to enter the storage tank 1 through the inlet pipe 6. The delivery pipe 5 is connected to a sewage treatment device. At this time, the operator opens the feeding port on the top of the storage tank 1 and adds a certain amount of powdered agent into the storage tank 1 at one time through the feeding port. At the same time as adding the powdered agent, the drive component 11 is started, which drives the reciprocating stirring component 7 to rotate. Because of the two sets of limiting components 8, the cleaning component 9 drives the two sets of mixing components 10 to move along the two sets of limiting components 8. The horizontal reciprocating motion of the cleaning component 9 cleans the powdered agent adsorbed on the inner wall of the storage tank 1 and moves along with the cleaning component 9. At the same time, the mixing component 10 rotates along the corresponding limiting component 8 to fully stir the powdered agent, forming a coagulant. The metering pump 3 draws the stirred coagulant in the storage tank 1 into the discharge pipe 4, and outputs it from the discharge pipe 4 through the metering pump 3 into the conveying pipe 5. The coagulant is then conveyed to the external sewage treatment equipment through the conveying pipe 5. The metering pump 3 can control the amount of coagulant conveyed.

[0024] Specifically, the drive assembly 11 includes a motor 1101 and a power rod 1102. The power rod 1102 is installed inside the storage tank 1. One end of the power rod 1102 passes through the top of the storage tank 1 and is fixedly connected to the output end of the motor 1101. The power rod 1102 is rotatably connected to the top of the storage tank 1. The motor 1101 is fixed to the top of the storage tank 1. The reciprocating stirring assembly 7 includes a reciprocating lead screw 701, a rotating rod 702, and several stirring rods 703. One end of the reciprocating lead screw 701 is fixedly connected to the power rod 1102. One end of the rotating rod 702 is fixedly connected to the other end of the reciprocating lead screw 701. Several stirring rods 703 are all fixed on the rotating rod 702.

[0025] In this embodiment, when in use, the motor 1101 is started, the motor 1101 drives the power rod 1102 to rotate, the power rod 1102 drives the reciprocating screw 701 to rotate, the reciprocating screw 701 drives the rotating rod 702 to rotate, and the rotating rod 702 drives several stirring rods 703 to rotate, so that the powdered medicine and water are stirred.

[0026] Specifically, the limiting component 8 includes a fixed plate 801, a limiting groove 802, and two racks 803. The top of the fixed plate 801 is fixedly connected to the top of the storage tank 1. The limiting groove 802 is formed on the fixed plate 801. The two racks 803 are fixedly installed on the fixed plate 801 and located on both sides of the limiting groove 802. The cleaning component 9 includes a limiting plate 901, two connecting plates 902, and an annular scraper 903. The limiting plate 901 is sleeved on the reciprocating screw 701. The corresponding sides of the limiting plate 901 extend into the limiting groove 802 and slide in cooperation with the limiting groove 802. One end of the two connecting plates 902 is fixedly connected to the limiting plate 901. The two connecting plates 902 are symmetrically arranged. The annular scraper 903 is fixedly connected to the other end of the two connecting plates 902. The annular scraper 903 is in contact with the inner wall of the storage tank 1.

[0027] In this embodiment, when the reciprocating screw 701 rotates, due to the limitation of the limiting groove 802, the limiting plate 901 moves back and forth along the limiting groove 802, and drives the two connecting plates 902 and the two sets of mixing components 10 to move synchronously. The two connecting plates 902 drive the annular scraper 903 to move synchronously. The annular scraper 903 scrapes the powdered medicine adsorbed on the inner wall of the storage tank 1, so that the medicine on the inner wall of the storage tank 1 will not be adsorbed on the inner wall of the storage tank 1, ensuring that the powdered medicine and water are fully mixed, thereby ensuring a certain ratio.

[0028] Specifically, the mixing component 10 includes two gears 1001, two connecting rods 1002, and two stirring blades 1003. One end of each connecting rod 1002 is rotatably connected to both sides of the limiting plate 901. The two gears 1001 are fixedly sleeved on the corresponding connecting rods 1002. The two stirring blades 1003 are fixedly connected to the other end of the corresponding connecting rods 1002. The two gears 1001 mesh with the corresponding racks 803.

[0029] In this embodiment, when the limiting plate 901 moves, it drives the two connecting rods 1002, the two gears 1001, and the two stirring blades 1003 to move synchronously. Because the gears 1001 mesh with the rack 803, the gears 1001 roll along the rack 803. When the gears 1001 roll downwards along the rack 803, the gears 1001 drive the connecting rods 1002 to rotate, and the connecting rods 1002 drive the stirring blades 1003 to rotate forward. When the gears 1001 roll upwards along the rack 803, the connecting rods 1002 and the stirring blades 1003 rotate in opposite directions, so that the stirring blades 1003 move up and down while rotating, which can accelerate the rapid fusion of powdered medicine and water, thereby increasing the fusion effect.

[0030] Specifically, a controller 12 is installed on the support frame 2. The controller 12 is electrically connected to the motor 1101 and the metering pump 3, and controls the metering pump 3 and the motor 1101 through the controller 12.

[0031] In this embodiment, the metering pump 3 and the motor 1101 are controlled by the controller 12. The controller 12 is an existing PLC controller 12, and the metering pump 3 is an existing device, which will not be explained here.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A coagulant stirring and dosing device for wastewater treatment, comprising a storage tank (1) and a support frame (2), characterized in that: The storage tank (1) is mounted on a support frame (2), and a metering pump (3) is mounted on the support frame (2). A discharge pipe (4) is mounted at the bottom of the storage tank (1), and the other end of the discharge pipe (4) is connected to the absorption end of the metering pump (3). A conveying pipe (5) is mounted on the output end of the metering pump (3). A water inlet pipe (6) is mounted on the top of the storage tank (1). A reciprocating stirring assembly (7) is mounted inside the storage tank (1). Two sets of limiting assemblies (8) are mounted on both sides of the reciprocating stirring assembly (7). A limiter (8) is mounted on the reciprocating stirring assembly (7) along the two sets of limiters (8). The cleaning component (9) moves back and forth to clean the inner wall of the storage tank (1). The cleaning component (9) is provided with two sets of mixing components (10) that cooperate with the two sets of limiting components (8). The two sets of mixing components (10) are symmetrically arranged. When the cleaning component (9) moves, it can drive the two sets of mixing components (10) to move back and forth and make the mixing components (10) rotate along the corresponding limiting component (8). The top of the storage tank (1) is provided with a drive component (11) that drives the reciprocating stirring component (7) to rotate.

2. The coagulant stirring and dosing device for wastewater treatment according to claim 1, characterized in that: The drive assembly (11) includes a motor (1101) and a power rod (1102). The power rod (1102) is installed inside the storage tank (1). One end of the power rod (1102) passes through the top of the storage tank (1) and is fixedly connected to the output end of the motor (1101). The power rod (1102) is rotatably connected to the top of the storage tank (1), and the motor (1101) is fixed to the top of the storage tank (1).

3. The coagulant stirring and dosing device for wastewater treatment according to claim 2, characterized in that: The reciprocating stirring assembly (7) includes a reciprocating lead screw (701), a rotating rod (702), and several stirring rods (703). One end of the reciprocating lead screw (701) is fixedly connected to the power rod (1102), one end of the rotating rod (702) is fixedly connected to the other end of the reciprocating lead screw (701), and several stirring rods (703) are all fixed on the rotating rod (702).

4. The coagulant stirring and dosing device for wastewater treatment according to claim 3, characterized in that: The limiting component (8) includes a fixed plate (801), a limiting groove (802) and two racks (803). The top of the fixed plate (801) is fixedly connected to the top of the storage tank (1). The limiting groove (802) is opened on the fixed plate (801). The two racks (803) are fixedly installed on the fixed plate (801) and located on both sides of the limiting groove (802).

5. The coagulant stirring and dosing device for wastewater treatment according to claim 4, characterized in that: The cleaning component (9) includes a limiting plate (901), two connecting plates (902) and an annular scraper (903). The limiting plate (901) is sleeved on the reciprocating screw (701). The corresponding two sides of the limiting plate (901) extend into the limiting groove (802) and slide with the limiting groove (802). One end of the two connecting plates (902) is fixedly connected to the limiting plate (901). The two connecting plates (902) are symmetrically arranged. The annular scraper (903) is fixedly connected to the other end of the two connecting plates (902). The annular scraper (903) is in contact with the inner wall of the storage tank (1).

6. A coagulant stirring and dosing device for wastewater treatment according to claim 4 or 5, characterized in that: The mixing component (10) includes two gears (1001), two connecting rods (1002), and two stirring blades (1003). One end of each connecting rod (1002) is rotatably connected to both sides of the limiting plate (901). The two gears (1001) are fixedly sleeved on the corresponding connecting rods (1002). The two stirring blades (1003) are fixedly connected to the other end of the corresponding connecting rods (1002). The two gears (1001) mesh with the corresponding racks (803).

7. The coagulant stirring and dosing device for wastewater treatment according to claim 2, characterized in that: The support frame (2) is equipped with a controller (12), which is electrically connected to the motor (1101) and the metering pump (3). The controller (12) controls the metering pump (3) and the motor (1101).

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