Alum feeding equipment for sewage treatment
By designing an automated alum dosing device, infrared sensors and stirring blades are used to achieve uniform dosing and thorough mixing of alum, solving the problems of uneven dosing and insufficient mixing in traditional equipment, and improving the efficiency and automation of wastewater treatment.
Patent Information
- Application Number
- CN202423024015.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional alum dosing equipment for wastewater treatment suffers from problems such as uneven alum dosing, insufficient mixing, and low automation, resulting in unstable treatment effects and increased complexity and cost of manual operation.
An alum dispensing device was designed, comprising a storage tank, an infrared sensor, and a stirring blade. The infrared sensor detects the distance to the alum surface and automatically prompts for the addition of alum. The motor drives the baffle to periodically dispense alum, and the stirring blade ensures that the alum is fully mixed with the wastewater, thus achieving automated dispensing and mixing.
It improves the uniformity of alum addition and mixing efficiency, reduces manual operation, enhances flocculation effect, improves sewage treatment efficiency, and reduces labor costs.
Smart Images

Figure CN223774762U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to an alum dosing device for wastewater treatment. Background Technology
[0002] With the acceleration of industrialization and urbanization, the amount of sewage discharged has increased significantly, and water pollution has become increasingly serious. Domestic sewage, industrial wastewater, and agricultural runoff all put enormous pressure on the water environment, urgently requiring effective treatment technologies.
[0003] Traditional alum dosing equipment for wastewater treatment may not do so evenly, leading to unstable treatment results. This requires regular manual monitoring and adjustment, increasing labor costs and operational complexity. Furthermore, wastewater may not be fully mixed with alum before being discharged into the next process, resulting in incomplete reactions and affecting the treatment outcome. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an alum dosing device for wastewater treatment, thereby solving the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an alum dosing device for sewage treatment, comprising a storage tank, a tank cover installed on the top of the storage tank, a first rotating shaft rotatably installed inside the storage tank, a first driven pulley fixedly installed on the outer side of the top of the first rotating shaft, the first driven pulley being rotatably connected to a first driving pulley via a first belt, a first mounting base fixedly installed on the outer side of the storage tank, a first motor fixedly installed on the outer side of the first mounting base, the output end of the first motor being fixedly connected to the first driving pulley, a support frame fixedly installed at the bottom of the storage tank, several dosing slots opened at the bottom of the storage tank, and several baffles fixedly installed on the outer side of the bottom of the first rotating shaft.
[0008] Preferably, the dispensing trough is fan-shaped, the baffle is fan-shaped, and the dispensing trough and the baffle are distributed circumferentially at the bottom of the storage tank.
[0009] Preferably, an infrared sensor is fixedly installed on the side of the can lid, and a three-yellow light is fixedly installed on the top of the can lid.
[0010] Preferably, a water tank is fixedly installed at the bottom of the support frame by screws, a base is fixedly installed at the bottom of the water tank, a water inlet is fixedly installed on the left side of the water tank, and a water outlet is fixedly installed on the right side of the water tank.
[0011] Preferably, a second motor is fixedly installed on the second mounting base at the rear of the water tank, and a second drive pulley is fixedly installed on the output end of the second motor. The second drive pulley is rotatably connected to a second driven pulley via a second belt.
[0012] Preferably, a second shaft is fixedly installed on the inner side of the second driven pulley, and a stirring blade is fixedly installed on the outer side of the second shaft.
[0013] Compared with the prior art, this utility model provides an alum dosing device for sewage treatment, which has the following beneficial effects: The storage tank of this alum dosing device can store a large amount of alum at a time. A baffle on the first rotating shaft can block the dosing trough. An infrared sensor on the side of the tank lid can detect the distance to the alum surface. When the distance reaches a set value, indicating insufficient alum in the storage tank, the infrared sensor converts the signal, causing the three yellow lights to change from green to yellow to remind the operator to add alum, reducing the need for manual operation. Driven by a first motor, the first rotating shaft rotates, periodically moving the baffle out of the dosing trough to achieve material dosing. This device has a high degree of automation, saving time and labor. After the alum falls into the water tank, the sewage is discharged into the water tank through the inlet. Driven by a second motor, the second rotating shaft rotates, and the stirring blades on the second rotating shaft ensure thorough mixing of the alum and sewage, enhancing the flocculation effect, improving mixing uniformity, and increasing treatment efficiency. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of a three-dimensional partial structure of the present invention. Figure 1 ;
[0016] Figure 3 This is a schematic diagram of a three-dimensional partial structure of the present invention. Figure 2 ;
[0017] Figure 4 This is a schematic diagram of a three-dimensional partial structure of the present invention. Figure 3 .
[0018] In the diagram: 1. Storage tank; 2. Infrared sensor; 3. Tank lid; 4. Three yellow lights; 5. First rotating shaft; 6. First driven pulley; 7. First driving pulley; 8. First belt; 9. First motor; 10. First mounting base; 11. Water tank; 12. Second motor; 13. Second belt; 14. Second driving pulley; 15. Base; 16. Water outlet; 17. Support frame; 18. Screw; 19. Dispensing trough; 20. Baffle; 21. Second rotating shaft; 22. Stirring blade; 23. Water inlet; 24. Second mounting base; 25. Second driven pulley. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figure 1-4 As shown, this utility model provides a technical solution: an alum dosing device for sewage treatment, including a storage tank 1, a tank cover 3 installed on the top of the storage tank 1, a first rotating shaft 5 rotatably installed inside the storage tank 1, a first driven pulley 6 fixedly installed on the outer side of the top of the first rotating shaft 5, the first driven pulley 6 being rotatably connected to a first driving pulley 7 via a first belt 8, a first mounting base 10 fixedly installed on the outer side of the storage tank 1, a first motor 9 fixedly installed on the outer side of the first mounting base 10, the output end of the first motor 9 being fixedly connected to the first driving pulley 7, a support frame 17 fixedly installed at the bottom of the storage tank 1, several dosing slots 19 opened at the bottom of the storage tank 1, and several baffles 20 fixedly installed on the outer side of the bottom of the first rotating shaft 5.
[0021] Furthermore, the dispensing trough 19 is fan-shaped, and the baffle 20 is fan-shaped. The dispensing trough 19 and the baffle 20 are distributed circumferentially on the storage tank 1.
[0022] Specifically, the first rotating shaft 5 on the baffle 20, driven by the first motor 9, causes the dispensing trough 19 to be opened periodically, realizing timed automatic dispensing, reducing the need for manual operation, and the dispensing trough 19 arranged in a circle can make the alum dispensing more uniform.
[0023] Furthermore, an infrared sensor 2 is fixedly installed on the side of the can lid 3, and a three-yellow light 4 is fixedly installed on the top of the can lid 3.
[0024] Specifically, the infrared sensor 2 can detect the distance from the alum surface and provide a signal change to the yellow light 4. When the light changes from green to yellow, it reminds the operator that the storage tank 1 needs to be replenished with alum.
[0025] Furthermore, a water tank 11 is fixedly installed at the bottom of the support frame 17 by screws 18, a base 15 is fixedly installed at the bottom of the water tank 11, an inlet 23 is fixedly installed on the left side of the water tank 11, and an outlet 16 is fixedly installed on the right side of the water tank 11.
[0026] Specifically, wastewater can enter the water tank 11 through the inlet 23, where it flocculates with alum. The flocculated wastewater can then be connected to an external pipe through the outlet 16, thus improving space utilization.
[0027] Furthermore, a second motor 12 is fixedly installed on the second mounting base 24 at the rear of the water tank 11, and a second drive pulley 14 is fixedly installed at the output end of the second motor 12. The second drive pulley 14 is rotatably connected to a second driven pulley 25 via a second belt 13.
[0028] Specifically, the transmission system has a relatively simple structure and can effectively absorb shocks and vibrations during transmission, providing a smooth transmission effect. In case of overload, the second belt 13 will slip, preventing damage to the second motor 12.
[0029] Furthermore, a second rotating shaft 21 is fixedly installed on the inner side of the second driven pulley 25, and an agitator blade 22 is fixedly installed on the outer side of the second rotating shaft 21.
[0030] Specifically, the stirring blade 22 can fully mix alum with wastewater, avoid local concentrations that are too high or too low, improve the overall treatment effect, accelerate the sedimentation process, and improve treatment efficiency.
[0031] Working principle: First, this wastewater treatment alum dosing device has a storage tank 1 that can store a large amount of alum at a time. A baffle 20 on the first rotating shaft 5 can block the dosing trough 19. An infrared sensor 2 on the side of the tank lid 3 can detect the distance to the alum surface. When the distance reaches a set value, indicating insufficient alum in the storage tank 1, the infrared sensor 2 converts the signal, causing the three yellow lights 4 to change from green to yellow, reminding the operator that alum needs to be added, thus reducing the need for manual operation. Driven by the first motor 9, the first rotating shaft 5 rotates, periodically blocking the baffle. Plate 20 is moved out of the feeding tank 19 to realize feeding, which has a high degree of automation and saves time and labor. Next, after the alum falls into the water tank 11, the sewage is discharged into the water tank 11 through the inlet 23. Driven by the second motor 12, the second active belt pulley 14 drives the second shaft 21 on the second driven belt pulley 25 to rotate via the second belt 13. The stirring blades 22 on the second shaft 21 make the alum and sewage fully mixed, enhance the flocculation effect, improve the mixing uniformity, and improve the treatment efficiency. The treated sewage is connected to the external pipeline through the outlet 16 and enters the next process.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wastewater treatment alum dosing device, comprising a storage tank (1), characterized in that: The storage tank (1) is equipped with a lid (3) on top. A first rotating shaft (5) is rotatably installed inside the storage tank (1). A first driven pulley (6) is fixedly installed on the outer side of the top of the first rotating shaft (5). The first driven pulley (6) is rotatably connected to a first driving pulley (7) via a first belt (8). A first mounting base (10) is fixedly installed on the outer side of the storage tank (1). A first motor (9) is fixedly installed on the outer side of the first mounting base (10). The output end of the first motor (9) is fixedly connected to the first driving pulley (7). A support frame (17) is fixedly installed at the bottom of the storage tank (1). Several delivery slots (19) are opened at the bottom of the storage tank (1). Several baffles (20) are fixedly installed on the outer side of the bottom of the first rotating shaft (5).
2. The alum dosing device for wastewater treatment according to claim 1, characterized in that: The dispensing slot (19) is fan-shaped, the baffle (20) is fan-shaped, and the dispensing slot (19) and the baffle (20) are distributed circumferentially on the storage tank (1).
3. The alum dosing device for wastewater treatment according to claim 1, characterized in that: An infrared sensor (2) is fixedly installed on the side of the can lid (3), and a yellow light (4) is fixedly installed on the top of the can lid (3).
4. The alum dosing device for wastewater treatment according to claim 1, characterized in that: The support frame (17) has a water tank (11) fixedly installed at the bottom by screws (18). The water tank (11) has a base (15) fixedly installed at the bottom. The water tank (11) has an inlet (23) fixedly installed on the left side and an outlet (16) fixedly installed on the right side.
5. The alum dosing device for sewage treatment according to claim 4, characterized in that: The second motor (12) is fixedly installed on the second mounting base (24) on the rear side of the water tank (11). The output end of the second motor (12) is fixedly installed with the second driving pulley (14). The second driving pulley (14) is rotatably connected to the second driven pulley (25) through the second belt (13).
6. The alum dosing device for wastewater treatment according to claim 5, characterized in that: A second shaft (21) is fixedly installed on the inner side of the second driven pulley (25), and a stirring blade (22) is fixedly installed on the outer side of the second shaft (21).