Multi-chamber integrated PAM dosing device

Abstract

The utility model belongs to the technical field of dosing devices, and discloses a multi-chamber integrated PAM dosing device which comprises a mixing box, a grinding box is arranged above the mixing box, a material storage box is installed below the grinding box, a feeding box is installed at the discharging end of the material storage box, the discharging end of the feeding box is connected with a feeding pipeline, and the feeding pipeline is connected with the grinding box. A bearing plate is arranged below the discharging end of the feeding pipeline, a movable shaft is arranged below the bearing plate, a rotating shaft is connected to the movable shaft, stirring blades are connected to the outer wall of the part, extending to the upper portion of the bearing plate, of the rotating shaft, and movable blades are installed on the outer wall of the movable shaft. The bearing plates can be attached to effectively prevent external water vapor from entering the pipeline, and when sewage acts on the movable blades at a certain flow speed, the movable blades promote the stirring blades to rotate by means of a linkage mechanism of the movable shaft and the rotating shaft, so that caked PAM powder in the pipeline is effectively dispersed and dredged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dosing device, concretely relates to a multi-chamber integrated PAM dosing device. BACKGROUND

[0002] The dosing device is a device for accurately adding chemical agents (such as flocculants, disinfectants, acid-base neutralizing agents, etc.) to the process flow of water treatment, sewage treatment, industrial production, etc. Its main function is to ensure the accuracy and stability of the dosage of the agent, and to automatically control according to the process requirements, so as to improve the processing efficiency and the utilization rate of the agent.

[0003] In the application number 202021177521.1 discloses an integrated PAC / PAM automatic dosing device, "the PAM storage tank is fixedly installed on the upper wall of the other stirring box body, two connecting pipes are connected with the lower end of the PAC storage tank and the PAM storage tank, and the other end is connected with the upper wall of the two stirring box bodies, two switch assemblies are fixedly installed in the two connecting pipes, two motors are fixedly installed on the lower wall of the two stirring box bodies, two rotating shafts are connected with the driving end of the two motors and are movably installed in the two stirring box bodies through the rolling bearing." The main function of the connecting pipe in the above is to smoothly transport the agent in the storage tank to the stirring box. However, in actual operation, the switch is located in the connecting pipe, and the protection below the switch is not in place, which is easy to cause water droplets to splash into the pipe. After these water droplets mix with the agent, the agent will gradually accumulate and clog in the inner wall of the pipe. With the passage of time, the clogged agent will block the pipe, seriously affecting the normal transportation of the agent and the continuity of the dosing process, and eventually may cause the entire dosing system to malfunction. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a multi-chamber integrated PAM dosing device to solve the problem of insufficient protection below the switch in the connecting pipe, water droplets easily splashing in, and clogging in the pipe after mixing with the agent.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a multi-chamber integrated PAM dosing device, comprising: a mixing box, wherein the upper part of the mixing box is connected to a liquid inlet pipe, the upper part of the mixing box is provided with a grinding box, the lower part of the grinding box is provided with a storage box, the discharge end of the storage box is provided with a feeding box, the feeding box is connected between the feeding box and the storage box, the discharge end of the feeding box is connected to the feeding pipe, and the discharge end of the feeding pipe extends into the mixing box, a supporting plate is provided below the discharge end of the feeding pipe, a movable shaft is provided below the supporting plate, the movable shaft is connected to a rotating shaft, the rotating shaft extends to the outer wall of the upper part of the supporting plate and is connected to a stirring blade, the outer wall of the movable shaft is provided with movable blades, and the movable blades are located outside the liquid outlet end of the liquid inlet pipe, and a conical cover is installed outside the movable shaft, a plurality of chambers are formed in the mixing box, the grinding box, the storage box and the feeding box, and the drug delivery work is completed by coordinated action in the plurality of chambers.

[0006] Specifically, a movable groove is formed on the lower end surface of the supporting plate, a mounting plate is provided below the supporting plate, and a portion of the mounting plate is located in the movable groove, and a spring is connected between the movable groove and the mounting plate;

[0007] A vertical electric push rod is installed at the top of the inner wall of the mixing box, a second rotary motor is installed at the output of the electric push rod, a connecting plate is installed at the output end of the second rotary motor, and the connecting plate is fixed to the mounting plate;

[0008] A liquid outlet pipe is connected to the bottom of the mixing box, and a mixing element is installed in the mixing box;

[0009] A grinding element is installed in the grinding box, and the grinding box is connected to the material storage box;

[0010] A first rotating motor is installed on the side wall of the feeding box, and a spiral blade is installed on the output end of the first rotating motor.

[0011] Through the above technical solution:

[0012] During operation, the inlet pipe introduces the wastewater to be treated into the mixing tank. The pipe's smooth interior ensures smooth wastewater flow and prevents impurity accumulation and blockage. The mixing tank is a closed container equipped with a mixing element. Once the wastewater enters the mixing tank, the mixing element activates. This element uses mechanical or pneumatic agitation to provide initial agitation. PAM tablets or granules are placed in the grinding tank, which is equipped with high-efficiency grinding elements. Activating the grinding elements grinds the PAM tablets or granules into a fine powder. The powdered PAM has a larger surface area, facilitating subsequent uniform mixing with wastewater and enhancing flocculation. The ground PAM powder falls by gravity into the storage bin. The storage bin is sealed to prevent moisture and agglomeration, ensuring the PAM powder remains dry and maintains good flowability during storage. When dosing is required, the PAM powder flows through the feed pipe into the feed bin, which houses a first rotary motor. Activating the first rotary motor initiates the rotation of the spiral blades, conveying the PAM powder from the feed bin to the feed pipe. By controlling the speed of the first rotary motor, the rotation rate of the spiral blades can be precisely adjusted, thereby controlling the delivery rate of the PAM powder. This delivery rate can be dynamically adjusted based on the inflow and outflow rates of the sewage, ensuring the optimal mixing ratio of PAM powder to sewage and maximizing drug utilization. The PAM powder enters the mixing tank through the feed pipe and is thoroughly mixed with the sewage. Within the mixing tank, the mixing element continues stirring to ensure full contact between the PAM powder and sewage, forming a uniform mixture. The stirring time and speed can be adjusted according to actual treatment requirements to achieve the optimal flocculation effect.

[0013] When the system is not in need of dosing, the electric actuator and the second rotary motor are activated. The electric actuator drives the mounting plate and carrier plate through the connecting plate in longitudinal and lateral movement. This dual-axis movement ensures that the carrier plate can be precisely moved to the discharge end of the feed pipe and fit snugly into the pipe outlet. The carrier plate's primary function is to seal the discharge end of the feed pipe, preventing external moisture from entering the pipe, keeping the pipe dry and effectively reducing the possibility of PAM powder agglomeration due to moisture absorption. The carrier plate's tight fit within the feed pipe not only seals the pipe but also further ensures powder quality through physical isolation. Once the carrier plate reaches the discharge end of the feed pipe and fits into place, it can move up and down on the mounting plate via a movable slot, providing a cushioning stroke. The spring deforms under pressure during the carrier plate's movement, absorbing impact forces, protecting the structural integrity of the feed pipe and extending the equipment's service life.

[0014] When the system is dosing, the electric push rod is started, and the bearing plate and the conical cover are moved downward synchronously, so that the lower space of the feeding pipe is exposed, and an open dosing area is formed. The PAM powder stored in the storage box automatically falls freely from the feeding pipe under the action of gravity and is uniformly scattered into the sewage below, realizing precise dosing. The design of the conical cover helps to guide the flow of the powder and reduce the retention of the powder on the bearing plate, ensuring that the powder is fully utilized and reducing waste.

[0015] When the liquid inlet pipe introduces sewage, the sewage enters the pipe at a certain flow rate and impact force, impacting the movable blade. The movable blade converts the kinetic energy of the sewage into mechanical energy through the linkage mechanism of the movable shaft and the rotating shaft, driving the stirring blade to rotate at high speed. The stirring blade is located inside the feeding pipe, and its rotating movement generates strong centrifugal force and shear force, which can effectively stir and dredge the caked PAM powder in the pipe. This mechanical action not only prevents clogging caused by powder caking, but also ensures uniform distribution of the powder in the pipe, creating good conditions for subsequent full mixing with sewage.

[0016] After the sewage is introduced, if the feeding pipe is accidentally blocked, the mixing piece can drive the water flow inside the mixing box to move, providing additional kinetic energy for the stirring blade to continue rotating, avoiding the accumulation and caking of the powder in the pipe, and effectively preventing blockage.

[0017] The system realizes full automation of pipe protection, sealing, dredging and dosing through the cooperative work of the electric push rod, the second rotating motor, the movable shaft and the conical cover, reduces manual intervention, and improves the reliability and efficiency of the system. The system not only can effectively protect the feeding pipe from water vapor entering in the state of no dosing, but also can quickly dredge the pipe when the powder is caked, ensuring the continuity and stability of the dosing process.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] (1) The utility model discloses a second rotating motor, a mounting plate and a bearing plate are arranged, the pipe is protected when not dosing, and when in use, the electric push rod and the second rotating motor are started, drive the mounting plate and the bearing plate to move longitudinally and transversely, the bearing plate is accurately positioned to the discharge end of the feeding pipe, and is closely attached to the pipe outlet, the attachment of the bearing plate effectively prevents external water vapor from entering the pipe, keeps the pipe dry, avoids powder from caking due to moisture absorption, and the movable groove and the spring play a buffering role during the movement of the bearing plate, absorb the impact force, protect the structural integrity of the feeding pipe, and prolong the service life of the equipment.

[0020] (2)The utility model discloses a movable shaft, stirring vane and movable vane cover etc. setting part, realize the stirring and dredging of the medicine powder agglomerate in pipeline, when the sewage with certain flow rate acts on movable vane, movable vane helps the linkage mechanism of movable shaft and pivot, promotes stirring vane rotation, and then effectively stirs and dredges the PAM medicine powder agglomerate in pipeline, and this mechanical device can effectively prevent the blockage problem caused by medicine powder agglomerate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model;

[0022] Figure 2 It is the structure schematic diagram of the utility model guide material pipeline;

[0023] Figure 3 It is the structure schematic diagram of the utility model spiral vane;

[0024] Figure 4 It is the structure schematic diagram of the utility model conical cover;

[0025] Figure 5 It is the structure schematic diagram of the utility model mounting plate;

[0026] Figure 6 It is the structure schematic diagram of the utility model movable vane;

[0027] In the drawing: 1, mixing box;101, inlet pipeline;102, outlet pipeline;103, mixing piece;2, grinding box;201, grinding piece;3, storage box;4, feeding box;401, guide material pipeline;402, first rotary motor;403, spiral vane;5, feed pipeline;6, electric push rod;7, second rotary motor;8, connecting plate;9, mounting plate;10, bearing plate;1001, movable groove;1002, spring;11, conical cover;12, movable shaft;13, pivot;14, stirring vane;15, movable vane. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] Please refer to Figures 1-6As shown, the utility model provides the following technical scheme: A kind of multi-chamber integrated PAM dosing device, comprising: mixing box 1, the upper portion of mixing box 1 is connected with liquid inlet pipeline 101, the upper portion of mixing box 1 is equipped with grinding box 2, the lower portion of grinding box 2 is equipped with storage tank 3, the discharge end of storage tank 3 is equipped with feeding tank 4, and feeding tank 4 is connected with storage tank 3 between guide material pipeline 401, the discharge end of feeding tank 4 is connected with feed pipe 5, and the discharge end of feed pipe 5 extends into mixing box 1, the lower portion of feed pipe 5 is equipped with bearing plate 10, the lower portion of bearing plate 10 is equipped with movable shaft 12, movable shaft 12 is connected with rotating shaft 13, rotating shaft 13 extends to the outer wall of bearing plate 10 upper portion and is connected with stirring blade 14, movable shaft 12 is equipped with movable blade 15 on outer wall, and movable blade 15 is located in the liquid outlet end of liquid inlet pipeline 101, movable shaft 12 is equipped with conical cover 11 outside, mixing box 1, grinding box 2, storage tank 3 and feeding tank 4 form multiple chambers, and multiple chambers are cooperated to complete the work of sending medicine.

[0030] Further, the lower end surface of bearing plate 10 is provided with movable groove 1001, the lower portion of bearing plate 10 is equipped with mounting plate 9, and the part of mounting plate 9 is located in movable groove 1001, and spring 1002 is connected between movable groove 1001 and mounting plate 9;

[0031] The inner wall top of mixing box 1 is equipped with vertical electric push rod 6, and the output of electric push rod 6 is equipped with second rotary motor 7, the output end of second rotary motor 7 is equipped with connecting plate 8, and connecting plate 8 is fixed with mounting plate 9;

[0032] The lower portion of mixing box 1 is connected with liquid outlet pipeline 102, and mixing piece 103 is installed in mixing box 1.

[0033] Grinding piece 201 is installed in grinding box 2, and grinding box 2 is communicated with storage tank 3.

[0034] The sidewall of feeding tank 4 is equipped with first rotary motor 402, and the output end of first rotary motor 402 is equipped with helical blade 403.

[0035] Through the above technical scheme:

[0036] When in use, the liquid inlet pipeline 101 is responsible for introducing the sewage to be treated into the mixing box 1. The pipeline is designed with smooth inner walls to ensure smooth flow of sewage and avoid accumulation and blockage of impurities. The mixing box 1 is a closed container equipped with a mixing element 103 inside. When the sewage enters the mixing box 1, the mixing element 103 is activated. The mixing element 103 uses mechanical stirring or pneumatic stirring to preliminarily stir the sewage. PAM tablets or granules are placed in the grinding box 2. The grinding box 2 is equipped with a high-efficiency grinding element 201. After the grinding element 201 is activated, the PAM tablets or granules are ground into fine powder. The PAM powder has a larger specific surface area, which facilitates subsequent uniform mixing with the sewage and improves the flocculation effect. The ground PAM powder falls into the storage box 3 by gravity. The storage box 3 is designed as a sealed structure with moisture-proof and anti-caking functions to ensure that the PAM powder remains dry and has good flowability during storage. When dosing is required, the PAM powder enters the feeding box 4 through the material guide pipeline 401. The feeding box 4 is equipped with a first rotary motor 402. After the first rotary motor 402 is activated, the spiral blade 403 starts to rotate, conveying the PAM powder from the feeding box 4 to the feeding pipeline 5. By controlling the rotation speed of the first rotary motor 402, the rotation rate of the spiral blade 403 can be accurately adjusted, thereby controlling the delivery rate of the PAM powder. The delivery rate can be dynamically adjusted according to the inlet and outlet rates of the sewage to ensure that the mixing ratio of PAM powder and sewage is always in the best state, maximizing the utilization of the drug. The PAM powder enters the mixing box 1 through the feeding pipeline 5 and is thoroughly mixed with the sewage. In the mixing box 1, the mixing element 103 continues to stir to ensure that the PAM powder is in full contact with the sewage, forming a uniform mixture. The stirring time and speed can be adjusted according to the actual treatment requirements to achieve the best flocculation effect.

[0037] When the system does not require dosing, the electric push rod 6 and the second rotary motor 7 are activated. The electric push rod 6 drives the mounting plate 9 and the bearing plate 10 to move longitudinally and transversely through the connecting plate 8. This dual-axis movement ensures that the bearing plate 10 can accurately move to the discharge end of the feeding pipeline 5 and tightly fit the pipeline outlet. The main function of the bearing plate 10 is to block the discharge end of the feeding pipeline 5 to prevent external water vapor from entering the pipeline, keeping the pipeline dry and effectively reducing the possibility of PAM powder caking due to moisture absorption. The close fit of the bearing plate 10 with the feeding pipeline 5 not only achieves sealing of the pipeline but also further protects the quality of the powder through physical isolation. The bearing plate 10 can move up and down on the mounting plate 9 through the movable slot 1001 at the moment it moves to the discharge end of the feeding pipeline 5 and fits, providing a buffer stroke. The spring 1002 is deformed under pressure during the movement of the bearing plate 10, absorbing the impact force and protecting the structural integrity of the feeding pipeline 5, prolonging the service life of the equipment.

[0038] When the system is dosing, electric push rod 6 activates, driving carrier plate 10 and conical cover 11 to move downward synchronously, exposing the lower space of feed pipe 5 and forming an open area for drug delivery. Under the influence of gravity, the PAM powder stored in storage bin 3 automatically falls freely from feed pipe 5 and is evenly distributed into the sewage below, achieving precise dosing. The design of conical cover 11 helps guide the flow of powder, reducing its retention on carrier plate 10, ensuring full utilization of the powder and minimizing waste.

[0039] When sewage is introduced into the liquid inlet pipe 101, it enters the pipe at a certain flow rate and impact force, impacting the movable blades 15. Through the linkage mechanism of the movable shaft 12 and the rotating shaft 13, the movable blades 15 convert the sewage's kinetic energy into mechanical energy, driving the stirring blades 14 to rotate at high speed. Located within the feed pipe 5, the rotating motion of the stirring blades 14 generates powerful centrifugal and shear forces, effectively dispersing and unblocking any agglomerated PAM powder within the pipe. This mechanical action not only prevents blockage caused by powder agglomeration but also ensures uniform distribution of the powder within the pipe, creating optimal conditions for subsequent mixing with the sewage.

[0040] After the sewage is introduced, if the feed pipe 5 is accidentally blocked, the mixing element 103 can drive the water flow inside the mixing box 1 to provide additional kinetic energy for the stirring blade 14, prompting it to continue rotating, avoiding the accumulation and agglomeration of powder in the pipe, and effectively preventing blockage.

[0041] Through the coordinated operation of the electric push rod 6, the second rotary motor 7, the movable shaft 12, and the conical cover 11, the system achieves fully automated operations for pipeline protection, sealing, unclogging, and dosing, reducing manual intervention and improving system reliability and efficiency. The system not only effectively protects the feed pipeline 5 from moisture intrusion when no drug is being added, but also quickly unclogging the pipeline when powder agglomerates, ensuring the continuity and stability of the dosing process.

[0042] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-chamber integrated PAM dosing device, characterized in that, Include: Mixing box (1), the upper part of the mixing box (1) is connected with liquid inlet pipeline (101), the upper part of the mixing box (1) is provided with grinding box (2), the lower part of the grinding box (2) is installed with storage box (3), the discharge end of the storage box (3) is installed with feeding box (4), the feeding box (4) and the storage box (3) are connected with material guide pipeline (401), the discharge end of the feeding box (4) is connected with feed pipe (5), and the discharge end of the feed pipe (5) extends into the mixing box (1), the discharge end of the feed pipe (5) is provided with a bearing plate (10), the lower part of the bearing plate (10) is provided with a movable shaft (12), the movable shaft (12) is connected with a rotating shaft (13), the rotating shaft (13) extends to the outer wall of the upper part of the bearing plate (10) and is connected with stirring blade (14), the outer wall of the movable shaft (12) is installed with movable blade (15), and the movable blade (15) is located outside the liquid outlet end of the liquid inlet pipeline (101), the movable shaft (12) is installed with conical cover (11).

2. The multi-chamber integrated PAM dosing device according to claim 1, characterized in that: The lower end surface of the bearing plate (10) is provided with a movable groove (1001), the lower part of the bearing plate (10) is provided with a mounting plate (9), and the local part of the mounting plate (9) is located in the movable groove (1001), the movable groove (1001) and the mounting plate (9) are connected with spring (1002).

3. The multi-chamber integrated PAM dosing device according to claim 2, characterized in that: The inner wall of the mixing box (1) is provided with vertical electric push rod (6) at the top end, the output of the electric push rod (6) is provided with second rotary motor (7), the output end of the second rotary motor (7) is provided with connecting plate (8), and the connecting plate (8) is fixed with mounting plate (9).

4. The multi-chamber integrated PAM dosing device of claim 1, wherein: The lower part of the mixing box (1) is connected with liquid outlet pipeline (102), and the mixing box (1) is provided with mixing element (103).

5. The multi-chamber integrated PAM dosing device of claim 1, wherein: The grinding box (2) is provided with grinding element (201), and the grinding box (2) is communicated with the storage box (3).

6. The multi-chamber integrated PAM dosing device of claim 1, wherein: The side wall of the feeding box (4) is provided with first rotary motor (402), and the output end of the first rotary motor (402) is provided with spiral blade (403).

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