PAC full-automatic medicine preparation system

By designing a double-helix conveyor and a multi-layer stirring assembly, the problems of inaccurate powder addition and uneven mixing in PAC solution preparation were solved, achieving stability and efficient production of PAC solution, and improving water treatment effect and equipment durability.

CN224345781UActive Publication Date: 2026-06-12扬州上源环保科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
扬州上源环保科技有限公司
Filing Date
2025-06-06
Publication Date
2026-06-12

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    Figure CN224345781U_ABST
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Abstract

The utility model relates to sewage treatment reagent preparation technical field especially, more particularly to a kind of PAC full-automatic medicine preparation system, including medicine preparation system ontology, the medicine preparation system ontology includes box, the upper portion of box is provided with hopper, the inside of box is provided with stirring assembly, hopper is cooperatively provided with screw conveyor, it is connected with box by screw conveyor arrangement, the side of box is provided with control box, the top of box is provided with sealing cover, screw conveyor and box between still be provided with metering feeder;The system is by the reasonable design box, screw conveyor, stirring assembly and so on structure, and is equipped with advanced control box, can realize the accurate metering of PAC medicine powder, delivery, dissolution and the uniform stirring of solution, to provide stable, efficient PAC solution for water treatment and other industrial fields.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment agent preparation technology, and in particular to a PAC fully automated dissolution and preparation system. Background Technology

[0002] In numerous industrial fields such as wastewater treatment and water treatment, polyaluminum chloride (PAC), as a highly efficient inorganic polymeric coagulant, is widely used to remove suspended solids, colloids, and some dissolved organic matter from water to achieve water purification. The efficiency and quality of PAC solvent preparation directly affect the effectiveness and cost of subsequent water treatment processes.

[0003] Traditional PAC (polyacrylamide) solution preparation methods often rely on manual operation, which has many drawbacks. Manual feeding makes it difficult to precisely control the amount of powder added, leading to unstable solution concentrations and affecting water treatment efficiency. Furthermore, manual operation is labor-intensive and inefficient, unable to meet the needs of large-scale continuous production. In addition, the powder can easily generate dust during the feeding process, causing not only raw material waste but also harming the health of operators.

[0004] With the continuous development of industrial automation technology, the requirements for automation and intelligence in PAC (Pharmacopoeia alkali) dissolving and preparation systems are becoming increasingly stringent. While some existing dissolving and preparation systems have achieved automation to a certain extent, they still have shortcomings in structural design and functional implementation. For example, the design of the stirring components may not ensure that the solution is fully and uniformly mixed, affecting the dissolving effect; the screw conveyor may not effectively solve the problem of powder breakage and dispersion when conveying powder, resulting in insufficient dissolution of the powder in the solution. Utility Model Content

[0005] To address some of the problems existing in the prior art, this utility model provides a fully automated PAC dissolution and preparation system. This system, through the rational design of the housing, spiral conveyor, stirring components, and other structures, and equipped with an advanced control box, can achieve precise metering, conveying, dissolution of PAC powder, and uniform stirring of the solution, thereby providing stable and efficient PAC solutions for industrial fields such as water treatment.

[0006] To achieve the above objectives, this utility model provides a fully automatic PAC dissolving and preparation system, including a dissolving and preparation system body. The dissolving and preparation system body includes a box, a hopper is provided on the top of the box, a stirring assembly is provided inside the box, a screw conveyor is provided in conjunction with the hopper and connected to the box through the screw conveyor, a control box is provided on one side of the box, a sealing cover is provided on the top of the box, and a metering feeder is also provided between the screw conveyor and the box.

[0007] As a further improvement of this utility model, in order to increase the contact area between the powder and water and reduce the precipitation and agglomeration of the powder in the solution, the spiral conveying device adopts a double spiral structure design. The spiral conveying device is divided into a first spiral conveyor and a second spiral conveyor. The first spiral conveyor is equipped with blades on its spiral for preliminary crushing and dispersing of the powder. The second spiral conveyor is responsible for pushing the powder into the box.

[0008] As a further improvement of this utility model, in order to make the solution in the box more fully stirred and ensure that the PAC powder and water are fully and evenly mixed, the stirring assembly includes a drive motor, the drive motor is equipped with a stirring shaft and stirring blades, multiple sets of drive motors are equipped, the drive motor is mounted on the sealing cover plate of the box, and a motor fixing seat is provided between the drive motor and the box.

[0009] As a further improvement of this utility model, in order to generate different stirring flow patterns and enable the solution to form an all-round, multi-layer stirring effect in the tank, the stirring blade is a multi-layer blade structure, including an upper blade, a middle blade and a lower blade. The upper blade and the lower blade are inclined blades, and the middle blade is a turbine blade.

[0010] As a further improvement of this utility model, in order to facilitate the adjustment of the position and angle of the stirring blade on the stirring shaft, an adjustment component is provided between the stirring blade and the stirring shaft. The adjustment component includes a shaft sleeve, the stirring blade is connected to the stirring shaft through the shaft sleeve, the shaft sleeve is fixed to the outer wall of the stirring shaft, and a connecting collar is provided on the shaft sleeve, which is connected to the stirring blade.

[0011] As a further improvement of this utility model, in order to effectively prevent PAC solution from corroding the inner wall of the tank and reduce tank damage and leakage caused by corrosion, the inner wall of the tank is provided with an anti-corrosion coating, which is a corrosion-resistant epoxy resin coating.

[0012] As a further improvement of this utility model, in order to serve as a replenishment inlet for the PAC solution during preparation, the bottom of the tank is provided with an overflow port and a drug inlet. The drug inlet is connected to an external dosing pump. The tank is also provided with a water inlet, which is equipped with a water inlet pipe that extends to the top of the tank. The water inlet is located on one side of the metering feeder.

[0013] As a further improvement of this utility model, in order to spray water into the metering feeder through the nozzle and prevent the powder from remaining or clumping in the metering feeder, thus affecting the accuracy of the next feeding, the water inlet pipe is provided with a water inlet branch pipe, and a nozzle is provided in the metering feeder. The nozzle is connected to the water inlet branch pipe for cleaning the inside of the metering feeder. A control valve is also provided on the water inlet branch pipe.

[0014] In operation, the operator adds PAC powder to the hopper, at which point the system is in standby mode and all components are ready. The feeding and preliminary processing then begins; the control box issues a command, and the screw conveyor starts. Because the screw conveyor uses a double-screw structure design, the first screw conveyor has blades on its screw. During rotation, the blades initially crush and disperse the PAC powder falling from the hopper, reducing the particle size and increasing the efficiency of subsequent dissolution. Then, the second screw conveyor steadily and continuously pushes the pre-treated powder into the metering feeder. The metering feeder accurately measures the amount of powder added according to preset parameters, ensuring that the amount of powder entering the chamber meets the requirements and guaranteeing a stable concentration of the final PAC solution.

[0015] As the powdered medicine enters the tank, the water intake process begins. The water inlet pipe, connected to the inlet, introduces water into the tank from the top, where it mixes with the powdered medicine fed by the metering feeder. At this point, the mixing assembly starts working, with multiple drive motors rotating the mixing shaft and impellers. The impellers have a multi-layered structure; the upper and lower layers of inclined blades generate axial and radial flow, while the middle layer of turbine blades generates strong radial flow. The combination of these three elements creates a comprehensive, multi-layered mixing effect within the tank, ensuring thorough and uniform mixing of the powdered medicine and water.

[0016] During the dissolution process, if there is too much solution in the tank, the excess solution will be discharged through the overflow port to prevent overflow. Meanwhile, the drug inlet at the bottom of the tank is connected to an external dosing pump, which can be used as a replenishment inlet when preparing PAC solutions.

[0017] After the drug solution preparation is completed, in order to prevent residual drug powder in the metering feeder from affecting the next use, open the control valve on the water inlet branch pipe, and water will be sprayed into the metering feeder through the nozzle to thoroughly clean it, ensuring that the inside of the equipment is clean and ready for the next drug solution preparation.

[0018] The beneficial effects of this utility model are as follows:

[0019] Precise control and efficient production: The metering feeder enables precise control of the amount of PAC powder added. Compared with the traditional manual feeding method, it greatly reduces the feeding error, ensures that the concentration of the prepared solution is stable, meets the strict requirements of different water treatment processes for solution concentration, and improves the water treatment effect.

[0020] Optimized dissolution and mixing effects: The blade design of the first spiral conveyor in the double spiral conveyor initially breaks down and disperses the powder, increasing the contact area between the powder and water, accelerating the dissolution rate, reducing sedimentation and agglomeration, and improving the quality of the dissolved drug. The multi-layered stirring blade structure, combined with the adjustment components, produces an all-round, multi-level stirring effect, ensuring thorough and uniform mixing of the solution and avoiding localized uneven concentration.

[0021] Durable and easy to maintain: The corrosion-resistant epoxy resin coating on the inner wall of the tank effectively prevents the PAC solution from corroding the tank, extends the service life of the equipment, reduces maintenance and replacement costs, and ensures the purity and quality of the solution.

[0022] Easy to clean and environmentally friendly: The water inlet branch pipe and nozzles in the water inlet pipeline can thoroughly clean the metering feeder, preventing powder residue and ensuring the accuracy of the next feeding. The overflow port is located at the bottom of the tank, which can promptly drain excess solution and avoid spillage, waste, and pollution. Attached Figure Description

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a structural diagram of the present invention.

[0025] Figure 2 This is a top view of the structure of this utility model.

[0026] Figure 3 This is a structural diagram of the stirring assembly.

[0027] Figure 4 This is a structural diagram of the middle layer blades.

[0028] The components include: 1. Box body; 2. Hopper; 3. Mixing assembly; 4. Screw conveyor; 5. Control box; 6. Sealing cover; 7. Metering feeder; 8. First screw conveyor; 9. Second screw conveyor; 10. Drive motor; 11. Mixing shaft; 12. Mixing blades; 13. Upper blades; 14. Middle blades; 15. Lower blades; 16. Adjusting assembly; 17. Shaft sleeve; 18. Connecting collar; 19. Anti-corrosion coating; 20. Overflow port; 21. Liquid inlet; 22. Water inlet; 23. Water inlet pipe; 24. Water inlet branch pipe; 25. Nozzle; and 26. Control valve. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-4The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0030] like Figure 1-4 The illustrated PAC fully automated drug dissolving and preparation system includes a drug dissolving and preparation system body, which includes a housing 1. A hopper 2 is arranged on the top of the housing 1. A stirring assembly 3 is arranged inside the housing 1. A screw conveyor 4 is arranged in conjunction with the hopper 2 and is connected to the housing 1 through the screw conveyor 4. A control box 5 is arranged on one side of the housing 1. A sealing cover 6 is arranged on the top of the housing 1. A metering feeder 7 is also arranged between the screw conveyor 4 and the housing 1.

[0031] The spiral conveying device 4 adopts a double spiral structure design. The spiral conveying device 4 is divided into a first spiral conveyor 8 and a second spiral conveyor 9. The spiral of the first spiral conveyor 8 is equipped with blades for preliminary crushing and dispersing of the powder. The second spiral conveyor 9 is responsible for pushing the powder into the box 1.

[0032] The stirring assembly 3 includes a drive motor 10, which is equipped with a stirring shaft 11 and stirring blades 12. Multiple sets of drive motors 10 are provided. The drive motors 10 are mounted on the sealing cover plate 6 of the housing 1. A motor mounting base is provided between the drive motor 10 and the housing 1.

[0033] The stirring blade 12 has a multi-layer blade structure, including an upper blade 13, a middle blade 14 and a lower blade 15. The upper blade 13 and the lower blade 15 are inclined blades, and the middle blade 14 is a turbine blade.

[0034] An adjustment assembly 16 is provided between the stirring blade 12 and the stirring shaft 11. The adjustment assembly 16 includes a shaft sleeve 17. The stirring blade 12 is connected to the stirring shaft 11 through the shaft sleeve 17. The shaft sleeve 17 is fixed to the outer wall of the stirring shaft 11. A connecting collar 18 is provided on the shaft sleeve 17. The connecting collar 18 is connected to the stirring blade 12.

[0035] The inner wall of the housing 1 is provided with an anti-corrosion coating 19, which is a corrosion-resistant epoxy resin coating.

[0036] The bottom of the tank 1 is provided with an overflow port 20 and a liquid inlet 21. The liquid inlet 21 is connected to an external dosing pump. The tank 1 is also provided with a water inlet 22. The water inlet 22 is provided with a water inlet pipe 23 and extends to the top of the tank 1. The water inlet 22 is located on one side of the metering feeder 7.

[0037] The water inlet pipe 23 is provided with a water inlet branch pipe 24, and a nozzle 25 is provided inside the metering feeder 7. The nozzle 25 is connected to the water inlet branch pipe 24 and is used to clean the inside of the metering feeder 7. A control valve 26 is also provided on the water inlet branch pipe 24.

[0038] In operation, the operator adds PAC powder to hopper 2, at which point the system is in standby mode and all components are ready; then the feeding and preliminary processing begins. The control box 5 issues a command, and the screw conveyor 4 starts. Because the screw conveyor 4 adopts a double-screw structure design, the first screw conveyor 8 has blades on its screw. During rotation, the blades initially crush and disperse the PAC powder falling from hopper 2, reducing the particle size and increasing the efficiency of subsequent dissolution. Then, the second screw conveyor 9 steadily and continuously pushes the pre-treated powder into the metering feeder 7. The metering feeder 7 accurately measures the amount of powder added according to preset parameters, ensuring that the amount of powder entering the housing 1 meets the requirements and guarantees a stable concentration of the final prepared PAC solution.

[0039] As the powdered medicine enters the tank 1, the water intake process begins. Water is introduced into the tank 1 through the water inlet 22 and the water inlet pipe 23. The water enters from the top of the tank 1 and begins to mix with the powdered medicine added by the metering feeder 7. At this time, the stirring assembly 3 starts working, with multiple drive motors 10 driving the stirring shaft 11 and the stirring blades 12 to rotate. The stirring blades 12 have a multi-layered structure; the upper and lower layers of inclined blades generate axial and radial flow, while the middle layer of turbine blades generates strong radial flow. The combination of these three elements creates a comprehensive, multi-layered stirring effect within the tank 1, ensuring thorough and uniform mixing of the powdered medicine and water.

[0040] During the dissolution process, if there is too much solution in tank 1, the excess solution will be discharged through overflow port 20 to prevent overflow. At the same time, the drug inlet 21 at the bottom of tank 1 is connected to an external dosing pump, which can be used as a replenishment inlet when preparing PAC solution.

[0041] After the drug solution preparation is completed, in order to prevent residual drug powder in the metering feeder 7 from affecting the next use, open the control valve 26 on the water inlet branch pipe 24, and water is sprayed into the metering feeder 7 through the nozzle 25 to thoroughly clean it, ensuring that the inside of the equipment is clean and ready for the next drug solution preparation.

[0042] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A fully automated PAC dissolving and preparation system, comprising a dissolving and preparation system body, characterized in that, The main body of the drug dissolving preparation system includes a box (1), a hopper (2) is provided on the top of the box (1), a stirring assembly (3) is provided inside the box (1), a screw conveyor (4) is provided in cooperation with the hopper (2), and the screw conveyor (4) is connected to the box (1). A control box (5) is provided on one side of the box (1), a sealing cover plate (6) is provided on the top of the box (1), and a metering feeder (7) is also provided between the screw conveyor (4) and the box (1). The spiral conveying device (4) adopts a double spiral structure design. The spiral conveying device (4) is divided into a first spiral conveyor (8) and a second spiral conveyor (9). The first spiral conveyor (8) is equipped with blades on its spiral for preliminary crushing and dispersing of the powder. The second spiral conveyor (9) is responsible for pushing the powder into the box (1). The stirring assembly (3) includes a drive motor (10), which is equipped with a stirring shaft (11) and stirring blades (12). Multiple sets of the drive motor (10) are provided. The drive motor (10) is installed on the sealing cover plate (6) of the housing (1). A motor fixing seat is provided between the drive motor (10) and the housing (1). The stirring blade (12) has a multi-layer blade structure, including an upper blade (13), a middle blade (14) and a lower blade (15). The upper blade (13) and the lower blade (15) are oblique blades, and the middle blade (14) is a turbine blade.

2. The PAC fully automated drug dissolving and preparation system according to claim 1, characterized in that, An adjustment assembly (16) is provided between the stirring blade (12) and the stirring shaft (11). The adjustment assembly (16) includes a shaft sleeve (17). The stirring blade (12) is connected to the stirring shaft (11) through the shaft sleeve (17). The shaft sleeve (17) is fixed to the outer wall of the stirring shaft (11). A connecting collar (18) is provided on the shaft sleeve (17). The connecting collar (18) is connected to the stirring blade (12).

3. The PAC fully automated drug dissolving and preparation system according to claim 1, characterized in that, The inner wall of the box (1) is provided with an anti-corrosion coating (19), which is a corrosion-resistant epoxy resin coating.

4. The PAC fully automated drug dissolving and preparation system according to claim 1, characterized in that, The bottom of the box (1) is provided with an overflow port (20) and a liquid inlet (21). The liquid inlet (21) is connected to an external dosing pump. The box (1) is also provided with a water inlet (22). The water inlet (22) is provided with a water inlet pipe (23) and extends to the top of the box (1). The water inlet (22) is located on one side of the metering feeder (7).

5. The PAC fully automated drug dissolving and preparation system according to claim 4, characterized in that, The water inlet pipe (23) is provided with a water inlet branch pipe (24), and a nozzle (25) is provided inside the metering feeder (7). The nozzle (25) is connected to the water inlet branch pipe (24) and is used to clean the inside of the metering feeder (7). A control valve (26) is also provided on the water inlet branch pipe (24).