Flocculating agent preparation device

By using a flocculant preparation device with a dual stirring structure and temperature control, the problems of slow dissolution rate and uneven temperature of polyacrylamide are solved, and efficient flocculant preparation is achieved.

CN224086502UActive Publication Date: 2026-04-07LIAONING RUIWEN ENG MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing technologies, polyacrylamide dissolves slowly, and direct heating leads to uneven temperature distribution in the prepared solution and a tendency to overheat, which affects flocculation performance.

Method used

The system employs a dual stirring structure combining vertical stirring and agitation, along with an in-tank temperature control and conductivity sensor to ensure uniform heating of the solution and maintain the temperature below 60°C, thereby promoting the dissolution of polyacrylamide.

Benefits of technology

It achieves rapid dissolution of polyacrylamide and precise control of solution concentration, ensuring the efficiency and effectiveness of flocculant preparation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a flocculant preparation device, and belongs to the technical field of flocculant preparation. Comprising a configuration tank body, a vertical stirring structure is mounted in the configuration tank body, a stirring structure is mounted on the lower wall surface of the configuration tank body, a feeding structure is mounted on the upper wall surface of the configuration tank body, and an acceleration configuration structure is mounted on the side wall surface of the configuration tank body; the vertical stirring structure comprises a vertical stirring base, a vertical stirring sliding rod, a vertical stirring screw rod, a vertical stirring motor and a vertical stirring fan blade; the vertical stirring base is mounted in the configuration tank body, and the vertical stirring sliding rod is fixedly mounted between the configuration tank body and the vertical stirring base; the finished solution with higher temperature is added into the prepared solution, so that the prepared solution can be heated, the preparation of the solution is promoted, the final concentration of the prepared solution can reach a preset standard, the temperature is easier to control, and the temperature can be ensured not to exceed 60 DEG C.
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Description

Technical Field

[0001] This utility model belongs to the field of flocculant preparation technology, specifically relating to a flocculant preparation device. Background Technology

[0002] Flocculants are chemical agents that work by neutralizing charge, adsorbing and bridging, or settling suspended particles and colloids in water, causing them to aggregate into flocs that are difficult to separate, thus facilitating physical or chemical separation. Organic flocculants such as PAM are commonly used in wastewater treatment.

[0003] When preparing PAM flocculant, the concentration is generally 0.1%-0.2% or 1%-2%. Since the solubility of polyacrylamide and water is greatly affected by temperature, 20℃-60℃ is the recommended temperature range for PAM dissolution. Within this range, PAM can form a uniform and transparent solution, and the solubility increases with increasing temperature. At 50-60℃, the solubility can reach 5%-35%. Therefore, heating the solution during stirring can accelerate the dissolution efficiency of polyacrylamide. It should be noted that if the temperature exceeds 60℃, the PAM molecular chains may break or degrade, leading to a decrease in solution viscosity and a significant reduction in flocculation performance.

[0004] For example, a wastewater treatment flocculant preparation device with publication number CN221906618U heats the inside of a stirring container and monitors the temperature with a temperature sensor. However, it directly heats the preparation liquid inside the container. Since the heater is located inside the container, it can only perform local heating, resulting in uneven temperature of the preparation liquid inside the container. Therefore, there is a risk of overheating. Furthermore, the stirring structure for promoting dissolution in the above scheme is too simple and has little effect on promoting the dissolution of polyacrylamide. Utility Model Content

[0005] To address the problems of slow dissolution of polyacrylamide and uneven heating when directly heating the preparation solution in the prior art, this invention provides a flocculant preparation device that employs two stirring structures to accelerate the dissolution of polyacrylamide in the container. The specific technical solution is as follows: A flocculant preparation device includes: a preparation tank, wherein a vertical stirring structure is installed inside the preparation tank; a stirring structure is installed on the lower wall of the preparation tank; a feeding structure is installed on the upper wall of the preparation tank; and an accelerating preparation structure is installed on the side wall of the preparation tank; the vertical stirring structure includes: a vertical stirring... The system comprises a mixing base, a vertical mixing slide bar, a vertical mixing screw, a vertical mixing motor, and vertical mixing blades. The vertical mixing base is installed inside the configuration tank. The vertical mixing slide bar is fixedly installed between the configuration tank and the vertical mixing base. The vertical mixing screw is movably installed between the configuration tank and the vertical mixing base via bearings. The vertical mixing motor is installed on the upper wall of the configuration tank, and the drive end of the vertical mixing motor is connected to the vertical mixing screw. The vertical mixing blades are movably installed outside the vertical mixing slide bar and are threadedly installed outside the vertical mixing screw.

[0006] Preferably, the stirring structure includes: a stirring motor and stirring blades; the stirring motor is installed on the lower wall of the configuration tank, and the stirring motor passes through the bottom surface of the configuration tank through a sealed bearing, and the stirring blades are installed on the drive end of the stirring motor.

[0007] Preferably, the feeding structure includes: a solid feeding hopper, a feeding spring, and a feeding hammer; the solid feeding hopper is installed on the upper wall of the configuration tank, the feeding spring is installed on the side wall of the solid feeding hopper, and the feeding hammer is installed on the side wall of the feeding spring.

[0008] Preferably, the accelerated configuration structure includes: an accelerated configuration tank, a heating element, a temperature sensor, and an electrically controlled valve; the accelerated configuration tank is installed on the side wall of the configuration tank body via a pipe, the heating element is installed on the inner wall of the accelerated configuration tank, the temperature sensor is installed on the outer side wall of the accelerated configuration tank, and the probe of the temperature sensor is located inside the accelerated configuration tank, and the electrically controlled valve is installed on the pipe between the accelerated configuration tank and the configuration tank body.

[0009] Preferably, the external of the configured tank is equipped with a height-increasing support.

[0010] Preferably, a conductivity sensor is installed on the outside of the configuration tank, and the contacts of the conductivity sensor are located inside the configuration tank, and the conductivity sensor is capable of measuring the concentration of flocculant.

[0011] The flocculant preparation device of this utility model has the following advantages compared with the prior art:

[0012] 1. This flocculant preparation device can heat the prepared solution by adding a high-temperature finished solution into the prepared solution, which can promote the preparation of the solution and ensure that the final concentration of the prepared solution reaches the preset standard. Moreover, the temperature is easier to control and can be guaranteed not to exceed 60 degrees Celsius.

[0013] 2. This flocculant preparation device promotes the dissolution of polyacrylamide through two stirring structures: vertical and circumferential. The fluid flow directions formed by the two can influence each other, causing collisions inside the preparation liquid and thus promoting the dissolution rate of polyacrylamide. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the flocculant preparation device provided by this utility model;

[0015] Figure 2 A schematic diagram of the internal structure of the flocculant preparation device provided by this utility model;

[0016] Figure 3 A schematic diagram of the feeding structure of the flocculant preparation device provided by this utility model;

[0017] Figure 4 An exploded view of the accelerated configuration structure of the flocculant preparation device provided by this utility model;

[0018] in, Figures 1 to 4 The attached diagrams and components of the flocculant preparation device are as follows: 1. Preparation tank; 2. Vertical stirring base; 3. Vertical stirring slide bar; 4. Vertical stirring screw; 5. Vertical stirring motor; 6. Vertical stirring fan blade; 7. Stirring motor; 8. Stirring fan blade; 9. Solid feed hopper; 10. Feed spring; 11. Feed hammer; 12. Accelerating preparation tank; 13. Heating element; 14. Temperature sensor; 15. Electrically controlled valve; 16. Heightening support base; 17. Conductivity sensor. Detailed Implementation

[0019] The following are specific implementation cases and appendices. Figures 1-4The present invention will be further described below, but it is not limited to these embodiments. The present invention provides a technical solution: a flocculant preparation device, comprising: a preparation tank 1, a vertical stirring structure installed inside the preparation tank 1, a stirring structure installed on the lower wall of the preparation tank 1, a feeding structure installed on the upper wall of the preparation tank 1, and an accelerating preparation structure installed on the side wall of the preparation tank 1; the vertical stirring structure includes: a vertical stirring base 2, a vertical stirring slide rod 3, a vertical stirring screw 4, a vertical stirring motor 5, and a vertical stirring fan blade 6; the vertical stirring base 2 is installed inside the preparation tank 1, the vertical stirring slide rod 3 is fixedly installed between the preparation tank 1 and the vertical stirring base 2, the vertical stirring screw 4 is movably installed between the preparation tank 1 and the vertical stirring base 2 through a bearing, the vertical stirring motor 5 is installed on the upper wall of the preparation tank 1, and the drive end of the vertical stirring motor 5 is connected to the vertical stirring screw 4, and the vertical stirring fan blade 6 is movably installed outside the vertical stirring slide rod 3, and the vertical stirring fan blade 6 is movably installed outside the vertical stirring screw 4 through a thread.

[0020] As a preferred embodiment, the stirring structure further includes: a stirring motor 7 and a stirring blade 8; the stirring motor 7 is installed on the lower wall of the configuration tank 1, and the stirring motor 7 passes through the bottom surface of the configuration tank 1 through a sealed bearing, and the stirring blade 8 is installed on the drive end of the stirring motor 7.

[0021] As a preferred embodiment, the feeding structure further includes: a solid feeding hopper 9, a feeding spring 10, and a feeding hammer 11; the solid feeding hopper 9 is installed on the upper wall of the configuration tank 1, the feeding spring 10 is installed on the side wall of the solid feeding hopper 9, and the feeding hammer 11 is installed on the side wall of the feeding spring 10.

[0022] As a preferred embodiment, the accelerated configuration structure further includes: an accelerated configuration tank 12, a heating element 13, a temperature sensor 14, and an electrically controlled valve 15; the accelerated configuration tank 12 is installed on the side wall of the configuration tank 1 via a pipe, the heating element 13 is installed on the inner wall of the accelerated configuration tank 12, the temperature sensor 14 is installed on the outer side wall of the accelerated configuration tank 12, and the probe of the temperature sensor 14 is located inside the accelerated configuration tank 12; the electrically controlled valve 15 is installed on the pipe between the accelerated configuration tank 12 and the configuration tank 1.

[0023] As a preferred option, the tank body 1 is further equipped with a heightening support 16.

[0024] As a preferred embodiment, a conductivity sensor 17 is further installed on the outside of the configuration tank 1, and the contacts of the conductivity sensor 17 are located inside the configuration tank 1, and the conductivity sensor 17 is capable of measuring the concentration of flocculant.

[0025] Working principle:

[0026] I. Preparations before use: The operator first connects the external AC power supply to this utility model to provide energy for the electrical appliances in this utility model. Then, the matching controller is connected to this utility model to provide switching control for the vertical stirring motor 5, stirring motor 7, electric valve 15, heating element 13, and conductivity sensor 17 in this utility model, and to provide control logic for their operation. Next, the operator needs to prepare a relatively accurate electronic scale for weighing the raw materials. A liquid level sensor is installed at the bottom of the preparation tank 1 to detect how much water has been injected into the preparation tank 1. Then, the external water supply pipe is installed in the hole above the preparation tank 1 to pour in the water for the flocculant.

[0027] II. Flocculant Preparation: The operator first calculates the required volume of water and weight of polyacrylamide based on the type of flocculant to be prepared, such as PAM (an organic flocculant). Water is first introduced into the preparation tank 1 via a water supply pipe. When the level sensor detects that the water level has reached the standard, the water supply is stopped. Next, the operator weighs the required amount of polyacrylamide using an electronic scale and pours it into the preparation tank 1 through the solid feed hopper 9. During the pouring process, the powdered polyacrylamide is highly susceptible to static electricity. This static electricity causes some of the polyacrylamide to adhere to the inner wall of the feed hopper 9, leading to… The concentration of the solution may be lower due to differences in raw materials and design. Next, the operator pulls the feed hammer 11 to extend the feed spring 10. Then, the operator releases the feed hammer 11, at which point the feed spring 10 contracts, causing the feed hammer 11 to strike the solid feed hopper 9. This allows the polyacrylamide powder adhering to the inner wall of the solid feed hopper 9 to fall into the preparation tank 1, thus preventing raw material loss and ensuring that the final flocculant concentration does not meet the standard. In fact, the stirring motor 7 and the vertical stirring motor 5 are started to work. When the conductivity sensor 17 detects that the conductivity of the solution inside the preparation tank 1 meets the standard, it indicates that the flocculant preparation is complete.

[0028] III. Dissolution Acceleration Principle: The operator first prepares a flocculant solution with the same concentration as the target flocculant and pours it into the accelerated preparation tank 12. The solution is heated by the heating element 13 in the accelerated preparation tank 12, and the internal solution temperature is detected by the temperature sensor 14. In order to prevent the solution from exceeding 60 degrees Celsius, the heating element 13 stops heating when the temperature sensor 14 detects 55 degrees Celsius. During the stirring process, the electrically controlled valve 15 opens at fixed time intervals, allowing the hot solution to enter the preparation tank 1, which can improve the dissolution rate of polyacrylamide to a certain extent.

[0029] IV. Stirring Principle: This utility model has two stirring methods: vertical stirring and agitation stirring. During vertical stirring, the vertical stirring motor 5 starts working, and its rotation drives the vertical stirring screw 4 to rotate. Under the action of the screw thread, the vertical stirring blades 6 can move linearly outside the vertical stirring slide bar 3 and the vertical stirring screw 4. Furthermore, the vertical stirring motor 5 periodically rotates forward and reverse, causing the vertical stirring blades 6 to perform a reciprocating motion inside the preparation tank 1, thus achieving vertical stirring of the solution. During agitation stirring, the agitation motor 7 starts rotating, driving the agitation blades 8 to rotate. The rotating agitation blades 8 can agitate the solution inside the preparation tank 1 in a circumferential direction, thereby accelerating the dissolution rate of polyacrylamide to a certain extent.

[0030] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship 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. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flocculant preparation device, comprising: a preparation tank (1), characterized in that, The configuration tank (1) is equipped with a vertical stirring structure inside, a stirring structure is installed on the lower wall of the configuration tank (1), a feeding structure is installed on the upper wall of the configuration tank (1), and an accelerating configuration structure is installed on the side wall of the configuration tank (1); the vertical stirring structure includes: a vertical stirring base (2), a vertical stirring slide rod (3), a vertical stirring screw (4), a vertical stirring motor (5), and a vertical stirring fan blade (6); the vertical stirring base (2) is installed inside the configuration tank (1), the vertical stirring slide rod (3), the vertical stirring slide rod (4), the vertical stirring slide rod (5), the vertical stirring slide rod (6), the vertical stirring slide rod (7), the vertical stirring slide rod (8), the vertical stirring slide rod (9), the vertical stirring slide rod (10 ... 3) The vertical stirring screw (4) is fixedly installed between the configuration tank (1) and the vertical stirring base (2) through bearings. The vertical stirring motor (5) is installed on the upper wall of the configuration tank (1), and the drive end of the vertical stirring motor (5) is connected to the vertical stirring screw (4). The vertical stirring blade (6) is movably installed outside the vertical stirring slide (3), and the vertical stirring blade (6) is movably installed outside the vertical stirring screw (4) through threads.

2. The flocculant preparation device according to claim 1, characterized in that, The stirring structure includes: a stirring motor (7) and a stirring blade (8); the stirring motor (7) is installed on the lower wall of the configuration tank (1), and the stirring motor (7) passes through the bottom surface of the configuration tank (1) through a sealed bearing, and the stirring blade (8) is installed on the drive end of the stirring motor (7).

3. The flocculant preparation device according to claim 1, characterized in that, The feeding structure includes: a solid feeding hopper (9), a feeding spring (10), and a feeding hammer (11); the solid feeding hopper (9) is installed on the upper wall of the configuration tank (1), the feeding spring (10) is installed on the side wall of the solid feeding hopper (9), and the feeding hammer (11) is installed on the side wall of the feeding spring (10).

4. The flocculant preparation device according to claim 1, characterized in that, The accelerated configuration structure includes: an accelerated configuration tank (12), a heating element (13), a temperature sensor (14), and an electrically controlled valve (15); the accelerated configuration tank (12) is installed on the side wall of the configuration tank body (1) through a pipe, the heating element (13) is installed on the inner wall of the accelerated configuration tank (12), the temperature sensor (14) is installed on the outer side wall of the accelerated configuration tank (12), and the probe of the temperature sensor (14) is located inside the accelerated configuration tank (12), and the electrically controlled valve (15) is installed on the pipe between the accelerated configuration tank (12) and the configuration tank body (1).

5. The flocculant preparation device according to claim 1, characterized in that, The external of the configured tank (1) is equipped with a heightening support base (16).

6. The flocculant preparation device according to claim 1, characterized in that, A conductivity sensor (17) is installed on the outside of the configuration tank (1), and the contact of the conductivity sensor (17) is located inside the configuration tank (1), and the conductivity sensor (17) is capable of measuring the concentration of flocculant.

Citation Information

Patent Citations

  • Flocculant preparation device for sewage treatment

    CN221906618U