Large-scale electric polyacrylamide model selection device

Abstract

The utility model relates to the technical field of polyacrylamide (PAM) type selection, and particularly discloses a polyacrylamide large-scale electric type selection device which comprises a base, a stirring rod and a lifting device. A plurality of stirring cavities are formed in the base, the number of the stirring rods is opposite to that of the stirring cavities, each stirring cavity is opposite to one stirring rod, one end of each stirring rod faces the base, and the other end of each stirring rod is connected with the upper portion of the lifting device; and the lower part of the lifting device is connected with the base. A plurality of independent stirring cavities are integrated through the base, various polyacrylamide (PAM) models or different sewage samples can be tested at the same time, a traditional serial experiment of a single sample is converted into batch treatment, and the efficiency is improved by several times.

Description

Technical Field

[0001] This utility model relates to the field of polyacrylamide (PAM) selection technology, specifically to a large-scale electric polyacrylamide selector. Background Technology

[0002] In wastewater treatment and sludge dewatering processes, the selection of polyacrylamide (PAM) is crucial to the treatment effect. Traditional selection methods rely on manual experience and observe flocculation effects through small-batch tests, which suffers from low efficiency, large errors, and difficulty in scaling up. This invention addresses these problems by proposing an automated, parallel-processing electric selector that enables rapid screening of different wastewater / sludge samples through precise control of stirring parameters. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide a large-scale electric selector for polyacrylamide.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a polyacrylamide mass production electric selector, comprising:

[0005] Base, stirring rod, lifting device;

[0006] The base is provided with multiple stirring chambers, and the number of stirring rods is relative to the number of stirring chambers. Each stirring chamber is opposite to one stirring rod. One end of the multiple stirring rods faces the base, and the other end of the multiple stirring rods is connected to the lifting device, which is installed on one side of the base.

[0007] Main working principle: This large-scale electric polyacrylamide selector achieves efficient selection through multi-chamber parallel stirring and lifting drive control. Different types of polyacrylamide (PAM) and the wastewater / sludge sample to be tested are injected into multiple stirring chambers on the base, ensuring that each stirring chamber corresponds to a specific PAM type or sample condition. All stirring rods are initially positioned above the stirring chamber, and the lifting device is inactive.

[0008] After the lifting device is activated, it drives the stirring rod to move downwards synchronously, allowing the bottom of the stirring rod to enter the sample inside the mixing chamber. The lifting device drives the stirring rod to reciprocate within the mixing chamber; the frequency and amplitude of the motion can be preset via the control module. All stirring rods in all mixing chambers are driven by the same lifting device, ensuring that the mixing conditions (speed, force, time) in each chamber are completely consistent, eliminating differences in experimental variables. As the stirring rod moves within the sample, it generates eddies, accelerating the mixing of PAM with wastewater / sludge and promoting the flocculation reaction.

[0009] The multi-chamber design supports simultaneous testing of multiple PAM types or different wastewater samples, transforming the traditional serial process of single-sample testing into a parallel process, improving efficiency several times over. A unified drive source and control logic ensure the repeatability of all experimental conditions, avoiding human error.

[0010] This working principle, through mechanical synchronization and modular design, transforms PAM selection from an experience-based trial-and-error process into a quantifiable and efficient experiment, making it particularly suitable for large-scale reagent screening scenarios in wastewater treatment plants or chemical enterprises.

[0011] Preferably, the plurality of stirring chambers and the plurality of stirring rods extend along the length direction of the base.

[0012] Preferably, the plurality of stirring chambers and the plurality of stirring rods are distributed circumferentially around the center of the base.

[0013] Preferably, the stirring rod includes a rod body and a stirring section;

[0014] One end of the rod is connected to the stirring section, and the other end of the rod is connected to the lifting device; the diameter of the stirring section is smaller than the diameter of the stirring chamber.

[0015] Preferably, the surface of the stirring part is provided with a plurality of stirring holes, which are distributed circumferentially along the center point of the stirring part.

[0016] Preferably, the surface of the stirring rod is provided with a plurality of stirring grooves, which extend from the center point of the stirring part to the edge of the stirring part, and the plurality of stirring grooves are distributed around the center point of the stirring rod.

[0017] Preferably, the lifting device includes a connector and a lifting assembly. The lifting assembly is installed on one side of the base, and the orientation of the lifting assembly is parallel to the length direction of the stirring chamber. The connector is connected to the drive end of the lifting assembly, and the connector connects the upper parts of multiple stirring rods.

[0018] Preferably, the lifting device further includes a guide rod and a guide hole provided on the connector;

[0019] One end of the guide rod is installed on one side of the base, and the orientation of the guide rod is parallel to the length direction of the stirring chamber. The guide hole and the guide rod cooperate with each other.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention integrates multiple independent stirring chambers on a base, supporting simultaneous testing of various polyacrylamide (PAM) types or different wastewater samples. It transforms traditional serial experiments involving single samples into batch processing, increasing efficiency several times over. A single experiment can complete multiple sets of data comparisons, making it suitable for high-frequency reagent screening scenarios in wastewater treatment plants or chemical enterprises, shortening R&D or process adjustment cycles. All stirring rods are driven by the same lifting device, ensuring complete uniformity of stirring speed, amplitude, time, and other parameters in each stirring chamber. This eliminates human error, improves experimental repeatability, avoids selection deviations due to operational differences, and provides more reliable data support for decision-making.

[0022] In summary, this selector, through its multi-chamber parallel design and mechanical automation, significantly improves the efficiency, consistency, and reliability of polyacrylamide selection, making it particularly suitable for large-scale industrial-grade reagent screening needs, and combining economic efficiency with practicality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall mass production electric selector for polyacrylamide.

[0025] Figure 2 This is a front view of the polyacrylamide mass-produced electric selector;

[0026] Figure 3 This is a schematic diagram of a stirring unit;

[0027] Figure 4 This is a schematic diagram of another type of stirring unit;

[0028] 1. Base; 10. Stirring chamber; 11. Guide rod; 2. Stirring rod; 20. Rod body; 21. Stirring part; 22. Stirring hole; 23. Stirring tank; 3. Lifting device; 30. Connecting piece; 300. Guide hole; 31. Lifting assembly. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] Example 1

[0032] This embodiment discloses a large-scale electric selector for polyacrylamide, such as Figures 1-4 As shown, the system includes a base 1, stirring rods 2, and a lifting device 3. Efficient selection is achieved through multi-chamber parallel stirring and lifting drive control. Different types of polyacrylamide (PAM) and the wastewater / sludge sample to be tested are injected into multiple stirring chambers 10 on the base 1, ensuring that each stirring chamber 10 corresponds to a specific PAM type or sample condition. All stirring rods 2 are initially positioned above the stirring chambers 10, and the lifting device 3 is in an inactive state.

[0033] After the lifting device 3 is activated, it drives all the stirring rods 2 to move downwards synchronously via the connecting piece 30, so that the bottom of the stirring rods 2 enters the sample inside the stirring chamber 10. The lifting device 3 drives the stirring rods 2 to reciprocate up and down within the stirring chamber 10, and the frequency and amplitude of the movement can be preset via the control module. The stirring rods 2 in all stirring chambers 10 are driven by the same lifting device 3, ensuring that the stirring conditions (speed, force, time) in each chamber are completely consistent, eliminating differences in experimental variables. When the stirring rods 2 move in the sample, they generate eddies, which accelerate the mixing of PAM with sewage / sludge and promote the flocculation reaction.

[0034] The multi-chamber design supports simultaneous testing of multiple PAM models or different wastewater samples, transforming the traditional serial process of single-sample testing into a parallel process, increasing efficiency several times over. A unified drive source and control logic ensure the repeatability of all experimental conditions, avoiding human error. Through mechanical synchronization and modular design, PAM selection is transformed from an experience-based trial-and-error process into a quantifiable and efficient experiment, making it particularly suitable for large-scale reagent screening scenarios in wastewater treatment plants or chemical enterprises.

[0035] In some optional embodiments, the stirring chamber 10 and the stirring rod 2 are linearly arranged along the length of the base 1, forming a single-row or multi-row layout. This linear distribution facilitates sample injection and observation. The movement direction of the stirring rod 2 is parallel to the length of the base 1, suitable for elongated base 1 designs. The stirring rod 2 moves in a straight line during lifting and lowering, reducing the risk of lateral displacement. This design is suitable for laboratory benchtops or narrow industrial spaces, offering flexible layout options and simple sample addition and cleaning paths, reducing operational complexity.

[0036] In some alternative embodiments, the stirring chamber 10 and the stirring rod 2 are arranged in a circular array with the center of the base 1 as the center point (not shown). The circular layout allows the stirring rod 2 to move around the center of the base 1, which is suitable for designs with a circular base 1.

[0037] In some optional embodiments, the stirring rod 2 is divided into a rod body 20 as the connecting end and a stirring section 21 as the working end. The diameter of the stirring section 21 is smaller than the inner diameter of the stirring chamber 10 to avoid collision with the chamber wall. The stirring section 21 moves freely within the stirring chamber 10, transmitting the driving force of the lifting device 3 through the rod body 20 to achieve unobstructed mixing. The diameter difference design prevents the stirring section 21 from rubbing against the chamber wall, extending the equipment life. The stirring section 21 can reach the bottom of the chamber, eliminating mixing dead zones.

[0038] In some alternative embodiments, Figure 3 As shown, multiple stirring holes 22 are formed on the surface of the stirring section 21, distributed circumferentially around the center point, with the hole diameter adjusted according to experimental requirements. During the lifting and lowering process, the stirring holes 22 generate localized negative pressure, enhancing the liquid suction effect and promoting the mixing of PAM and wastewater. The circumferentially distributed holes form symmetrical vortices, improving mixing uniformity. The porous structure increases turbulence intensity, accelerating the flocculation reaction, thereby resulting in high reagent utilization, reduced PAM residue, and lower costs.

[0039] In some alternative embodiments, Figure 4 As shown, stirring grooves 23 are provided on the surface of the stirring section 21, extending from the center point to the edge and distributed along the circumference. When the stirring grooves 23 rise and fall, they push the liquid to flow along the groove wall, forming a spiral mixing path and prolonging the mixing time.

[0040] The depth and angle of the trough can optimize shear force, adapt to samples with different viscosities, adjust the mixing intensity through the trough design, adapt to different characteristics of sewage / sludge, and promote floc growth and improve sedimentation efficiency through directional fluid movement.

[0041] In some optional embodiments, the lifting device 3 includes a lifting assembly 31 (which may specifically be a combination of a cylinder or a motor and a lead screw) and a connecting member 30. The cylinder is installed parallel to the direction of the stirring chamber 10, and the connecting member 30 fixes the upper ends of all the stirring rods 2. The lifting assembly 31 drives the connecting member 30 to move up and down by air pressure, thereby causing the stirring rods 2 to move up and down synchronously. The parallel layout ensures that the direction of the force applied by the cylinder is consistent with the direction of movement of the stirring rods 2, reducing lateral stress.

[0042] In some optional embodiments, the lifting device 3 is further equipped with a guide rod 11 and a guide hole 300. The guide rod 11 is installed parallel to the cylinder, and the connecting member 30 slides along the guide rod 11 through the guide hole 300. The guide rod 11 restricts the movement trajectory of the connecting member 30, and the guide hole 300 cooperates with the guide rod 11 to ensure that the stirring rod 2 rises and falls vertically, preventing skewing. The dual-guide design of the cylinder and the guide rod 11 improves the stability of the movement. Even if the stirring rod 2 is subjected to uneven force, it can maintain a straight movement along the guide rod 11, reducing mechanical wear and extending the maintenance cycle.

[0043] In some optional embodiments, the base 1 is made of a transparent material (such as acrylic or PC), allowing the reaction inside the stirring chamber 10 to be observed with the naked eye or by sensors. The transparent base 1 supports real-time observation of the flocculation process, such as key states like floc formation and settling velocity, enabling immediate adjustment of experimental parameters, shortening the selection cycle, and achieving intelligent selection by combining with sensors, thus reducing human error.

[0044] This selection tool achieves high efficiency, consistency, and intelligence in polyacrylamide selection through modular design and multi-parameter optimization. From the layout of the stirring chamber 10 and the structure of the stirring rod 2 to the coordinated design of the drive components, it comprehensively enhances the practicality of industrial-grade reagent screening, making it particularly suitable for wastewater treatment plants, chemical enterprises, and other similar scenarios.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A polyacrylamide mass production electric selector, characterized in that, include: Base, stirring rod, lifting device; The base is provided with multiple stirring chambers, and the number of stirring rods is relative to the number of stirring chambers. Each stirring chamber is opposite to one stirring rod. One end of the multiple stirring rods faces the base, and the other end of the multiple stirring rods is connected to the lifting device, which is installed on one side of the base.

2. The polyacrylamide mass production electric selector according to claim 1, characterized in that, The plurality of stirring chambers and the plurality of stirring rods extend along the length of the base.

3. The polyacrylamide mass production electric selector according to claim 1, characterized in that, The plurality of stirring chambers and the plurality of stirring rods are distributed circumferentially around the center of the base.

4. The polyacrylamide mass production electric selector according to claim 1, characterized in that, The stirring rod includes a rod body and a stirring section; One end of the rod is connected to the stirring section, and the other end of the rod is connected to the lifting device; the diameter of the stirring section is smaller than the diameter of the stirring chamber.

5. The polyacrylamide mass production electric selector according to claim 4, characterized in that, The surface of the stirring part is provided with a plurality of stirring holes, which are distributed circumferentially along the center point of the stirring part.

6. The polyacrylamide mass production electric selector according to claim 4, characterized in that, The surface of the stirring rod is provided with a plurality of stirring grooves, which extend from the center point of the stirring part to the edge of the stirring part, and the plurality of stirring grooves are distributed around the center point of the stirring rod.

7. The polyacrylamide mass production electric selector according to claim 1, characterized in that, The lifting device includes a connector and a lifting assembly. The lifting assembly is installed on one side of the base, and the orientation of the lifting assembly is parallel to the length direction of the stirring chamber. The connector is connected to the drive end of the lifting assembly, and the connector connects the upper parts of multiple stirring rods.

8. The polyacrylamide mass production electric selector according to claim 7, characterized in that, The lifting device also includes a guide rod and a guide hole provided on the connector; One end of the guide rod is installed on one side of the base, and the orientation of the guide rod is parallel to the length direction of the stirring chamber. The guide hole and the guide rod cooperate with each other.

9. The polyacrylamide mass production electric selector according to claim 1, characterized in that, The base is made of a transparent material.

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