A coagulant dissolving and stirring machine for wastewater treatment

By designing rotating components and mixing auxiliary components, the problems of complex structure, low mixing efficiency and high energy consumption of existing coagulant dissolving and mixing equipment have been solved, achieving efficient and uniform mixing effect, reducing energy consumption and extending equipment life.

CN224524474UActive Publication Date: 2026-07-21ZHEJIANG LITTLE LOW CARBON TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LITTLE LOW CARBON TECHNOLOGY CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-21

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Abstract

The application relates to the wastewater treatment technical field, in particular to a coagulant dissolving and stirring machine for wastewater treatment, which comprises a stirring device and a driving device. The stirring device comprises a stirring barrel, a rotating assembly and a mixing auxiliary assembly, the rotating assembly is connected with the driving device, the mixing auxiliary assembly is installed on the outer side of the rotating assembly, liquid disturbance and mixing are realized through the synergistic effect of the arc-shaped blades and the flow guide grooves. The inner wall of the stirring barrel is provided with spiral protruding blocks, and the bottom is provided with an adjusting piece, so that the height can be adjusted. The application avoids stirring dead angles and improves stirring efficiency and uniformity through the design of the flow splitter and the reinforcing ribs. Through the rotating assembly and the mixing auxiliary assembly, the liquid is disturbed and mixed through the arc-shaped blades and the flow guide grooves during the stirring process, meanwhile, the flow splitter divides the liquid into multiple streams and guides the streams to the edge area, so that the stirring dead angles are avoided, and the stirring efficiency and uniformity are improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of wastewater treatment and environmental protection equipment, specifically a coagulant dissolving and mixing machine for wastewater treatment. Background Technology

[0002] In wastewater treatment, the dissolution and mixing of coagulants are crucial steps in ensuring effective water purification. While some equipment for dissolving and mixing coagulants has emerged on the market, these devices typically rely on complex mechanical structures to achieve their mixing function, and their mixing efficiency and uniformity still need improvement. Furthermore, these devices often consume significant amounts of energy during operation and require sophisticated operation and maintenance procedures.

[0003] Therefore, we have made improvements to this and proposed a coagulant dissolving and mixing machine for wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing coagulant dissolving and stirring equipment, such as complex structure, low stirring efficiency, high energy consumption, and the existence of dead zones in the stirring.

[0005] To achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides a coagulant dissolving and stirring machine for wastewater treatment, including a stirring device and a driving device. The stirring device includes a stirring tank, a rotating component, and a mixing auxiliary component. The rotating component is located inside the stirring tank and connected to the driving device. The mixing auxiliary component is installed on the outside of the rotating component. The coagulant is dissolved and stirred through the coordinated action of the rotating component and the mixing auxiliary component. The bottom of the stirring tank is provided with a fixed base, and the fixed base is provided with an adjusting component inside.

[0006] The mixing auxiliary component includes several arc-shaped blades, each of which has a guide groove on its inner side. The rotating component includes a central shaft and multiple support rods distributed circumferentially along the central shaft. One end of each support rod is fixedly connected to the central shaft, and the other end is fixedly connected to the arc-shaped blades. When the central shaft rotates under the drive of the driving device, the arc-shaped blades agitate and mix the liquid in the mixing tank through the guide grooves.

[0007] As a preferred technical solution of this application, the driving device includes a motor and a support frame. The support frame is fixedly connected to the upper end of the mixing tank, the motor is fixedly connected inside the support frame, and the output shaft of the motor is fixedly connected to the upper end of the central shaft through a coupling.

[0008] As a preferred technical solution of this application, the inner wall of the mixing tank is provided with a plurality of protrusions, the protrusions are distributed in a spiral shape, and the surface of the protrusions is provided with anti-slip textures, which are used to increase the friction between the liquid and the inner wall of the mixing tank, thereby promoting the flow of the liquid.

[0009] As a preferred technical solution of this application, the fixing base includes a base plate and a side plate. The base plate is welded to the bottom of the mixing tank, and the side plate is vertically arranged around the base plate. The adjusting component includes a screw and an adjusting plate. One end of the screw is threaded to the base plate, and the other end is rotatably connected to the adjusting plate. The upper surface of the adjusting plate is provided with a rubber pad, which is used to reduce the friction between the adjusting plate and the bottom of the mixing tank.

[0010] As a preferred technical solution of this application, the rotating component further includes a plurality of reinforcing ribs, which are arranged in a circumferential array on the outer wall of the central shaft. The reinforcing ribs are used to improve the overall strength and stability of the rotating component.

[0011] As a preferred technical solution of this application, the outer side of the arc-shaped blade is provided with a plurality of flow dividers. The flow dividers are trapezoidal in shape. The narrow side of the flow divider is fixedly connected to the arc-shaped blade, and the wide side faces the inner wall of the mixing tank. The flow dividers are used to divide the liquid into multiple streams and guide them to flow towards the edge area of ​​the mixing tank.

[0012] As a preferred technical solution of this application, the top of the mixing tank is provided with a feed inlet, and the inner side of the feed inlet is provided with a filter screen with a pore size of 2-5 mm. The filter screen is used to intercept large particulate impurities and prevent them from entering the mixing tank and affecting the mixing effect.

[0013] As a preferred technical solution of this application, the bottom of the mixing tank is provided with a discharge port, and the discharge port is provided with a valve.

[0014] As a preferred technical solution of this application, the outside of the mixing tank is provided with an observation window, which is made of a transparent material, namely tempered glass, and the thickness of the tempered glass is 8-10 mm. The observation window is used to monitor the mixing situation inside the mixing tank in real time.

[0015] As a preferred technical solution of this application, the bottom of the mixing tank is provided with support legs, and the number of support legs is four. The four support legs are evenly distributed on the bottom of the mixing tank, and the bottom of the support legs is provided with anti-slip pads. The anti-slip pads are made of rubber, which has good wear resistance and anti-slip properties, and can effectively prevent the mixing tank from shifting during operation.

[0016] Compared with the prior art, the technical features and beneficial effects of this utility model are as follows:

[0017] By incorporating a rotating assembly and mixing auxiliary components, the system achieves agitation and mixing of the liquid during stirring through arc-shaped blades and guide channels. Simultaneously, a flow divider separates the liquid into multiple streams and guides them towards the edge areas, preventing dead zones and improving stirring efficiency and uniformity. Raised blocks and anti-slip textures further promote liquid flow and enhance stirring effect. Adjustable components and rubber pads allow for height adjustment of the mixing tank bottom, adapting to different operating environments. Reinforcing ribs improve the overall strength and stability of the rotating assembly, extending the equipment's service life. A filter screen and sealing ring effectively intercept large particles and seal the liquid, ensuring safety and reliability during stirring. An observation window allows operators to monitor the stirring process in real time, improving ease of operation. Support legs and anti-slip pads ensure the stability of the mixing tank during operation, preventing shaking from affecting the stirring effect.

[0018] This utility model solves the problems of complex structure, low stirring efficiency, high energy consumption, and dead zones in existing coagulant dissolving and stirring equipment through the above-mentioned specific technical means. At the same time, it reduces manufacturing costs and simplifies the operation process, and has significant practicality and inventiveness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a schematic diagram of the bottom structure of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Mixing tank; 2. Rotating assembly; 3. Mixing auxiliary assembly; 4. Drive device; 5. Arc-shaped blades; 6. Guide channel; 7. Central shaft; 8. Support rod; 9. Protrusion block; 10. Fixed base; 11. Adjusting component; 12. Feed inlet; 13. Observation window; 14. Discharge outlet; 15. Support leg; 16. Reinforcing rib; 17. Diverter plate. Detailed Implementation

[0025] This utility model provides a coagulant dissolving and mixing machine for wastewater treatment, the specific implementation of which is as follows. (Combined with...) Figures 1 to 4As shown, the coagulant dissolving and mixing machine for wastewater treatment of this utility model includes a mixing tank 1, a rotating assembly 2, a mixing auxiliary assembly 3, and a driving device 4. The mixing tank 1 has a cylindrical structure and is used to contain the liquid to be mixed and the coagulant. The rotating assembly 2 is installed inside the mixing tank 1 and is driven to rotate by the driving device 4 at the top. The mixing auxiliary assembly 3 is fixed to the outside of the rotating assembly 2 and is used to agitate and mix the liquid inside the mixing tank 1. A fixed base 10 is provided at the bottom of the mixing tank 1, and an adjusting component 11 is provided inside the fixed base 10 for adjusting the height of the mixing tank 1.

[0026] The rotating assembly 2 consists of a central shaft 7, support rods 8, and reinforcing ribs 16. The central shaft 7 is vertically positioned at the center of the mixing tank 1, with its upper end connected to the drive device 4. The support rods 8 are evenly distributed circumferentially along the central shaft 7, with one end of each rod welded to the outer wall of the central shaft 7 and the other end fixedly connected to the arc-shaped blade 5. Multiple reinforcing ribs 16 are arranged in a circumferential array on the outer wall of the central shaft 7 to enhance the overall strength and stability of the rotating assembly 2.

[0027] The mixing auxiliary component 3 includes arc-shaped blades 5 and flow dividers 17. Multiple arc-shaped blades 5 are evenly distributed along the length of the support rod 8. Each arc-shaped blade 5 has a guide groove 6 on its inner side. The guide groove 6 has a semi-circular cross-sectional shape, which guides the liquid to flow along the surface of the arc-shaped blade 5. The flow divider 17 is fixed to the outer side of the arc-shaped blade 5, with its narrow side welded to the arc-shaped blade 5 and its wide side facing the inner wall of the mixing tank 1. The flow divider 17 is trapezoidal in shape, which can divide the liquid into multiple streams and guide them to the edge area of ​​the mixing tank 1.

[0028] The drive unit 4 includes a motor and a support frame. The support frame is fixedly connected to the upper end of the mixing tank 1, and the motor is fixedly connected inside the support frame. The output shaft of the motor is fixedly connected to the upper end of the central shaft 7 via a coupling. When the motor starts, it drives the central shaft 7 and the rotating assembly 2 to rotate as a whole.

[0029] The inner wall of the mixing tank 1 is provided with several raised blocks 9, which are distributed in a spiral pattern and have anti-slip textures on their surfaces. The raised blocks 9 are made of stainless steel, and the depth of the anti-slip textures is 0.5 mm to 1 mm, and the width is 2 mm to 3 mm. The raised blocks 9 increase the friction between the liquid and the inner wall of the mixing tank 1, promoting liquid flow. The top of the mixing tank 1 is provided with a feed inlet 12, and the inner side of the feed inlet 12 is provided with a filter screen with a pore size of 2 mm to 5 mm to intercept large particulate impurities. The bottom of the mixing tank 1 is provided with a discharge outlet 14.

[0030] The mounting base 10 includes a base plate and side plates. The base plate is welded to the bottom of the mixing tank 1, and the side plates are vertically arranged around the base plate. The adjusting component 11 includes a screw and an adjusting plate. One end of the screw is threaded to the base plate, and the other end is rotatably connected to the adjusting plate. The upper surface of the adjusting plate is provided with a rubber pad, the thickness of which is 3 mm to 5 mm, to reduce the friction between the adjusting plate and the bottom of the mixing tank 1. By rotating the screw, the height of the adjusting plate can be adjusted, thereby changing the tilt angle or height of the mixing tank 1 to adapt to different usage environments.

[0031] An observation window 13 is provided on the outer side of the mixing tank 1. The observation window 13 is made of tempered glass with a thickness of 8 mm to 10 mm. The edge of the observation window 13 is fixedly connected to the outer wall of the mixing tank 1 with sealant to ensure sealing performance. The observation window 13 is located near the upper middle part of the mixing tank 1, which facilitates the operator to monitor the mixing situation inside the mixing tank 1 in real time. There are four support legs 15 at the bottom of the mixing tank 1, which are evenly distributed. The bottom of each support leg 15 is equipped with an anti-slip pad made of rubber with a thickness of 5 mm to 8 mm. The anti-slip pad has good wear resistance and anti-slip performance, which can effectively prevent the mixing tank 1 from shifting during operation.

[0032] In practical applications, the operator first adds the coagulant and liquid into the mixing tank 1 through the feed inlet 12. The motor is then started, driving the central shaft 7 and rotating assembly 2 to rotate as a whole. The arc-shaped blades 5 rotate with the central shaft 7, and the guide channels 6 on their inner sides agitate and mix the liquid. The flow divider 17 splits the liquid into multiple streams and guides them to the edge area of ​​the mixing tank 1, avoiding the formation of dead zones. The protrusions 9 and anti-slip textures on the inner wall of the mixing tank 1 further promote liquid flow and enhance the mixing effect. The operator can monitor the mixing situation inside the mixing tank 1 in real time through the observation window 13 to ensure smooth mixing. After mixing is complete, the valve is opened, and the liquid is discharged through the discharge port 14. If it is necessary to adjust the height or tilt angle of the mixing tank 1, this can be achieved by rotating the screw in the adjusting component 11.

[0033] The above embodiments describe in detail the specific structure and operating principle of this utility model, ensuring that those skilled in the art can implement the technical solution based on the contents of the specification.

[0034] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0035] First, the operator adds the coagulant and the liquid to be treated into the mixing tank 1 through the feed inlet 12. The filter screen inside the feed inlet 12 effectively intercepts large particulate impurities, preventing them from entering the mixing tank 1 and affecting the subsequent mixing effect. Then, the motor in the drive unit 4 is started to rotate the central shaft 7. The rotation of the central shaft 7 causes the rotating assembly 2 to start operating as a whole, and the support rod 8 rotates synchronously with the central shaft 7, thereby causing the arc-shaped blades 5 and the flow divider 17 to create dynamic disturbances within the mixing tank 1.

[0036] As the arc-shaped blade 5 rotates with the central axis 7, the inner guide groove 6 guides the liquid, causing it to flow along the surface of the arc-shaped blade 5. The liquid can form a continuous flow path among the multiple guide grooves 6, avoiding uneven mixing caused by localized obstruction. Simultaneously, the flow divider 17 splits the liquid into multiple streams and guides them to the edge region of the mixing tank 1. The trapezoidal design of the flow divider 17, with its wide side facing the inner wall of the mixing tank 1, effectively propels the liquid towards the edge, eliminating dead zones and ensuring uniform distribution of the coagulant in the liquid.

[0037] While the liquid is agitated by the arc-shaped blades 5 and the flow divider 17, the protrusions 9 on the inner wall of the mixing tank 1 further enhance the liquid's flow. The protrusions 9 are distributed in a spiral pattern, and their anti-slip texture increases the friction between the liquid and the inner wall of the mixing tank 1, prompting the liquid to move along a spiral path. This spiral flow pattern not only improves the overall mixing efficiency of the liquid but also reduces the problem of coagulant deposition caused by localized stagnation. Furthermore, the stainless steel material of the protrusions 9 has good corrosion resistance and can adapt to the acidic and alkaline environments that may exist during wastewater treatment.

[0038] During the mixing process, the operator can monitor the mixing status inside the mixing tank 1 in real time through the observation window 13. The observation window 13 is made of tempered glass with a thickness of 8 to 10 millimeters, possessing excellent impact resistance and transparency, allowing the operator to clearly observe the flow state of the liquid and the degree of dissolution of the coagulant. If the mixing effect is not as expected, the speed of the drive device 4 can be adjusted appropriately or the mixing time can be extended to ensure that the coagulant is completely dissolved and evenly dispersed in the liquid.

[0039] After mixing is complete, the operator opens the valve at the discharge port 14, and the liquid is discharged through the discharge port 14. If it is necessary to adjust the height or tilt angle of the mixing tank 1, it can be done through the screw in the adjusting component 11. When the screw is rotated, the adjusting plate moves up and down, thereby changing the tilt angle or height of the mixing tank 1 to adapt to different usage needs. The rubber pad on the upper surface of the adjusting plate can effectively reduce the friction with the bottom of the mixing tank 1, ensuring a smooth and stable adjustment process.

[0040] Throughout operation, the four support legs 15 at the bottom of the mixing tank 1 and their anti-slip pads provide stable support, preventing displacement of the equipment during operation. The anti-slip pads are made of rubber material, 5 to 8 millimeters thick, and have good wear resistance and anti-slip properties, effectively mitigating the effects of uneven ground or equipment vibration. The base plate of the fixed seat 10 is welded to the bottom of the mixing tank 1, with side plates vertically arranged around the base plate, providing a stable foundation support for the mixing tank 1. The design of the reinforcing ribs 16 further improves the overall strength and stability of the rotating assembly 2, ensuring that the equipment is not easily deformed or damaged during long-term operation.

[0041] Through the above steps and structural design, this invention achieves efficient dissolution and uniform mixing of coagulant in wastewater. The synergistic effect of the arc-shaped blade 5 and the guide channel 6, the liquid guiding function of the flow divider 17, and the spiral flow promoting effect of the protrusion 9 collectively solve the problem of dead zones in traditional equipment. Meanwhile, the design of the adjusting component 11 and the support leg 15 improves the adaptability and stability of the equipment, while the observation window 13 and the sealing ring further enhance the convenience and safety of operation. The above embodiments describe in detail the specific operating principle of this invention, ensuring that those skilled in the art can smoothly implement this technical solution based on the contents of the specification.

Claims

1. A coagulant dissolving and mixing machine for wastewater treatment, characterized in that, The device includes a mixing tank (1), a rotating assembly (2), a mixing auxiliary assembly (3), and a driving device (4). The mixing tank (1) has a cylindrical structure. The rotating assembly (2) is located inside the mixing tank (1) and connected to the driving device (4). The mixing auxiliary assembly (3) is installed on the outside of the rotating assembly (2). The bottom of the mixing tank (1) is provided with a fixed seat (10), and the fixed seat (10) is provided with an adjusting component (11). The hybrid auxiliary component (3) includes several arc-shaped blades (5), and each arc-shaped blade (5) has a guide groove (6) on its inner side. The rotating component (2) includes a central shaft (7) and a number of support rods (8) distributed circumferentially along the central shaft (7). One end of the support rod (8) is fixedly connected to the central shaft (7), and the other end is fixedly connected to the arc-shaped blade (5).

2. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The driving device (4) includes a motor and a support frame. The support frame is fixedly connected to the upper end of the mixing tank (1), the motor is fixedly connected inside the support frame, and the output shaft of the motor is fixedly connected to the upper end of the central shaft (7) through a coupling.

3. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The inner wall of the mixing tank (1) is provided with a number of protrusions (9), which are distributed in a spiral shape. The surface of the protrusions (9) is provided with anti-slip texture, which has a depth of 0.5 mm to 1 mm and a width of 2 mm to 3 mm.

4. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The fixed base (10) includes a base plate and a side plate. The base plate is welded to the bottom of the mixing tank (1). The side plate is vertically arranged around the base plate. The adjusting component (11) includes a screw and an adjusting plate. One end of the screw is threaded to the base plate, and the other end is rotatably connected to the adjusting plate. The upper surface of the adjusting plate is provided with a rubber pad with a thickness of 3 mm to 5 mm.

5. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The rotating component (2) also includes several reinforcing ribs (16), which are arranged in a circumferential array on the outer wall of the central shaft (7).

6. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The outer side of the arc blade (5) is provided with several flow dividers (17). The flow dividers (17) are trapezoidal in shape. The narrow side of the flow dividers (17) is fixedly connected to the arc blade (5), and the wide side faces the inner wall of the mixing tank (1).

7. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The mixing tank (1) has a feed inlet (12) at the top, a filter screen inside the feed inlet (12) with a pore size of 2 mm to 5 mm, and a discharge outlet (14) at the bottom.

8. The coagulant dissolving and mixing machine for wastewater treatment according to claim 1, characterized in that, The mixing tank (1) is provided with an observation window (13) on the outside. The observation window (13) is made of tempered glass with a thickness of 8 mm to 10 mm. The bottom of the mixing tank (1) is provided with four support legs (15). The four support legs (15) are evenly distributed on the bottom of the mixing tank (1). The bottom of the support legs (15) is provided with anti-slip pads with a thickness of 5 mm to 8 mm.