A stirrer for easy cleaning of polyaluminum chloride

By introducing a cleaning rack and a cleaning brush for the observation port into the polyaluminum chloride stirring reaction device, the problem of difficult-to-clean deposits on the inner wall of the reactor was solved, achieving rapid cleaning and comprehensive observation.

CN224573731UActive Publication Date: 2026-07-31FOSHAN DAQIAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN DAQIAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

When using existing polyaluminum chloride stirring reaction equipment, a large amount of polyaluminum chloride residue will adhere to the inner wall of the reactor, which is difficult to clean.

Method used

A stirring reaction device for polyaluminum chloride that is easy to clean was designed. By setting up a cleaning frame and a connecting frame, the elastic force of the spring drives the telescopic block and telescopic rod to make the cleaning frame fit against the inner wall of the reactor. When rotating, it scrapes off the attached material and discharges it through the discharge port. At the same time, an observation port and a cleaning brush are set on the reactor lid to facilitate observation and cleaning of dirt at the bottom of the observation glass.

Benefits of technology

This enabled rapid cleaning of the reactor vessel, avoiding the difficulties of cleaning and ensuring efficient operation of the device and comprehensive observation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of stirring reaction technology, and particularly relates to a stirring reaction device for easy cleaning of polyaluminum chloride. It includes a reaction vessel body, with a vessel cover installed at the top. A sealing flange is provided at the connection between the vessel cover and the reaction vessel body. A feed inlet is installed at the top edge of the vessel cover. A stirring motor is fixedly connected to the top of the vessel cover. A cleaning frame is provided; the rotation of the frame drives the stirring blades to stir the polyaluminum chloride raw material. Simultaneously, a spring, through its own elasticity, drives a telescopic block to slide along the inner wall of the frame. The sliding of the telescopic block causes the cleaning frame at one end of the telescopic rod to adhere to the inner wall of the reaction vessel body. When the cleaning frame rotates, it drives a cleaning plate to slide along the inner wall of the reaction vessel body, scraping off the adhering substances. The scraped-off substances are discharged through the discharge port, achieving rapid cleaning of the reaction vessel body.
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Description

Technical Field

[0001] This utility model belongs to the field of stirring reaction technology, and in particular relates to a stirring reaction device for polyaluminum chloride that is easy to clean. Background Technology

[0002] Polyaluminum chloride, or polyaluminum for short, has a high degree of charge neutralization and bridging effect on colloids and particulate matter in water, and can powerfully remove toxic substances and heavy metal ions. It is stable and is often used as an emerging water purification material and coagulant, and is widely used in the purification and treatment of drinking water, industrial wastewater and municipal sewage.

[0003] Existing polyaluminum chloride (PAC) stirred reactors often accumulate a large amount of PAC residue on the inner wall of the reactor during operation, making cleaning difficult. Therefore, we propose a PAC stirred reactor design that is easier to clean. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a stirring reaction device for polyaluminum chloride that is easy to clean, thus avoiding the difficulty in cleaning the deposits on polyaluminum chloride.

[0005] In view of this, the present invention provides a polyaluminum chloride stirring reaction device that is easy to clean, including a reaction vessel body, a vessel cover installed at the top of the reaction vessel body, a sealing flange provided at the connection between the vessel cover and the reaction vessel body, a feed port installed at the top edge of the vessel cover, a stirring motor fixedly connected to the top of the vessel cover, a rotating shaft fixedly connected to the output end of the stirring motor, a connecting frame fixedly connected to the outer wall of the rotating shaft, a stirring blade fixedly connected to the outer wall of the connecting frame, a spring fixedly connected to the inner wall of the connecting frame, a telescopic block fixedly connected to one end of the spring, a telescopic rod fixedly connected to the outer wall of the telescopic block and passing through the interior of the connecting frame, a cleaning frame fixedly connected to one end of the telescopic rod, and a cleaning plate that fits against the inner wall of the reaction vessel body fixedly connected to the outer wall of the cleaning frame.

[0006] Based on the above structure, the rotating connecting frame drives the stirring blade to stir the polyaluminum chloride raw material. At the same time, the spring drives the telescopic block to slide along the inner wall of the connecting frame through its own elasticity. The sliding of the telescopic block causes the cleaning frame at one end of the telescopic rod to fit against the inner wall of the reactor body. When the cleaning frame rotates, it will drive the cleaning plate to slide along the inner wall of the reactor body, scraping off the adhering substances on the inner wall of the reactor body. The scraped adhering substances are discharged through the discharge port, realizing a rapid cleaning operation of the reactor body.

[0007] Preferably, the connecting frame is provided in two sets, and the two sets of connecting frames are parallel. In this embodiment, by providing two sets of connecting frames, it is beneficial to fully stir the polyaluminum chloride raw material.

[0008] Preferably, the stirring blade is perpendicular to the connecting frame. In this embodiment, the rotation of the rotating shaft drives the two sets of connecting frames to rotate synchronously, and the rotation of the connecting frames drives the stirring blade to rotate to stir the polyaluminum chloride raw material.

[0009] Preferably, the shape of the cleaning frame is the same as the cross-section of the reactor body. The cleaning plate is attached to the reactor body through the telescopic rod and the cleaning frame. In this embodiment, the spring drives the telescopic block to slide along the inner wall of the connecting frame through its own elastic force. The sliding of the telescopic block causes the cleaning frame at one end of the telescopic rod to be attached to the inner wall of the reactor body. When the cleaning frame rotates, the cleaning frame will drive the cleaning plate to slide along the inner wall of the reactor body to scrape off the deposits attached to the inner wall of the reactor body.

[0010] Preferably, an observation port is fixedly connected to the top of the reactor lid on the side away from the feed inlet. An observation glass is fixedly connected to the inner wall of the observation port. A sealing gasket is installed on the inner wall of the observation glass. A pin passes through the inner wall of the sealing gasket. A handle is fixedly connected to the top of the pin. A rotating plate is fixedly connected to the bottom of the pin. A cleaning brush that fits against the bottom of the observation glass is fixedly connected to the top of the rotating plate. In this embodiment, rotating the handle drives the rotating plate to rotate through the pin. The rotation of the rotating plate drives the cleaning brush to clean the dirt on the bottom of the observation glass. Then, the operator observes the stirring reaction of polyaluminum chloride in the reactor through the observation glass on the inner wall of the observation port.

[0011] Preferably, the observation port is cylindrical in shape and is set at an angle. In this embodiment, by setting the observation port at an angle, it is convenient for the staff to fully observe the reaction inside the reactor and avoid blind spots.

[0012] Preferably, the central axis of the pin coincides with the central axis of the observation glass. The rotating plate forms a rotating structure with the observation glass through the handle and the pin. In this embodiment, the rotation of the handle drives the rotating plate to rotate through the pin, and the rotation of the rotating plate drives the cleaning brush to clean the dirt at the bottom of the observation glass.

[0013] The beneficial effects of this utility model are:

[0014] 1. This easy-to-clean polyaluminum chloride stirring reaction device, by setting up a cleaning frame, the rotating connecting frame drives the stirring blade to rotate and stir the polyaluminum chloride raw material. At the same time, the spring drives the telescopic block to slide along the inner wall of the connecting frame through its own elastic force. The sliding of the telescopic block causes the cleaning frame at one end of the telescopic rod to fit against the inner wall of the reactor body. When the cleaning frame rotates, the cleaning frame will drive the cleaning plate to slide along the inner wall of the reactor body to scrape off the adhering substances on the inner wall of the reactor body. The scraped adhering substances are discharged through the discharge port, realizing a rapid cleaning operation of the reactor body.

[0015] 2. This easy-to-clean polyaluminum chloride stirring reaction device, by setting up an observation glass and a cleaning brush, rotates the handle to drive the rotating plate to rotate via a pin shaft. The rotation of the rotating plate drives the cleaning brush to clean the dirt at the bottom of the observation glass. Then, the staff can observe the stirring reaction of polyaluminum chloride in the reaction vessel through the observation glass on the inner wall of the observation port. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cleaning rack of this utility model;

[0019] Figure 4 This is a schematic diagram of the cleaning brush structure of this utility model.

[0020] The markings in the diagram are as follows:

[0021] 1. Reactor body; 2. Reactor cover; 3. Sealing flange; 4. Feed inlet; 5. Stirring motor; 6. Rotating shaft; 7. Connecting frame; 8. Stirring blade; 9. Spring; 10. Telescopic block; 11. Telescopic rod; 12. Cleaning frame; 13. Cleaning plate; 14. Observation port; 15. Observation glass; 16. Sealing gasket; 17. Pin; 18. Handle; 19. Rotating plate; 20. Cleaning brush. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] This application discloses a polyaluminum chloride stirring reaction device that is easy to clean, including a reaction vessel body 1. A vessel cover 2 is installed at the top of the reaction vessel body 1. A sealing flange 3 is provided at the connection between the vessel cover 2 and the reaction vessel body 1. A feed inlet 4 is installed at the top edge of the vessel cover 2. A stirring motor 5 is fixedly connected to the top of the vessel cover 2. A rotating shaft 6 is fixedly connected to the output end of the stirring motor 5. A connecting frame 7 is fixedly connected to the outer wall of the rotating shaft 6. A stirring blade 8 is fixedly connected to the outer wall of the connecting frame 7. A spring 9 is fixedly connected to the inner wall of the connecting frame 7. A telescopic block 10 is fixedly connected to one end of the spring 9. A telescopic rod 11 that penetrates the interior of the connecting frame 7 is fixedly connected to the outer wall of the telescopic block 10. A cleaning frame 12 is fixedly connected to one end of the telescopic rod 11. A cleaning plate 13 that fits against the inner wall of the reaction vessel body 1 is fixedly connected to the outer wall of the cleaning frame 12.

[0025] Based on the above structure, the connecting frame 7 rotates, driving the stirring blade 8 to rotate and stir the polyaluminum chloride raw material. At the same time, the spring 9 drives the telescopic block 10 to slide along the inner wall of the connecting frame 7 through its own elasticity. The sliding of the telescopic block 10 causes the cleaning frame 12 at one end of the telescopic rod 11 to fit against the inner wall of the reactor body 1. When the cleaning frame 12 rotates, it will drive the cleaning plate 13 to slide along the inner wall of the reactor body 1, scraping off the adhering substances on the inner wall of the reactor body 1. The scraped adhering substances are discharged through the discharge port, realizing a rapid cleaning operation of the reactor body 1.

[0026] In one embodiment, two sets of connecting frames 7 are provided, and the two sets of connecting frames 7 are parallel.

[0027] In this embodiment, by setting two sets of connecting frames 7, it is beneficial to fully stir the polyaluminum chloride raw material.

[0028] In one embodiment, the stirring blade 8 is perpendicular to the connecting frame 7.

[0029] In this embodiment, the rotation of the rotating shaft 6 drives the two sets of connecting frames 7 to rotate synchronously, and the rotation of the connecting frames 7 drives the stirring blades 8 to rotate to stir the polyaluminum chloride raw material.

[0030] In one embodiment, the cleaning rack 12 has the same shape as the cross-section of the reactor body 1, and the cleaning plate 13 is attached to the reactor body 1 by means of the telescopic rod 11 and the cleaning rack 12.

[0031] In this embodiment, the spring 9 drives the telescopic block 10 to slide along the inner wall of the connecting frame 7 through its own elastic force. The sliding of the telescopic block 10 causes the cleaning frame 12 at one end of the telescopic rod 11 to fit against the inner wall of the reactor body 1. When the cleaning frame 12 rotates, the cleaning frame 12 will drive the cleaning plate 13 to slide along the inner wall of the reactor body 1, scraping off the deposits attached to the inner wall of the reactor body 1.

[0032] In one embodiment, an observation port 14 is fixedly connected to the top of the vessel lid 2 on the side away from the feed inlet 4. An observation glass 15 is fixedly connected to the inner wall of the observation port 14. A sealing gasket 16 is installed on the inner wall of the observation glass 15. A pin 17 passes through the inner wall of the sealing gasket 16. A handle 18 is fixedly connected to the top of the pin 17. A rotating plate 19 is fixedly connected to the bottom of the pin 17. A cleaning brush 20 that fits against the bottom of the observation glass 15 is fixedly connected to the top of the rotating plate 19.

[0033] In this embodiment, the handle 18 rotates and drives the rotating plate 19 to rotate via the pin 17. The rotating plate 19 rotates and drives the cleaning brush 20 to clean the dirt at the bottom of the observation glass 15. Then, the staff observes the stirring reaction of polyaluminum chloride in the reactor body 1 through the observation glass 15 on the inner wall of the observation port 14.

[0034] In one embodiment, the observation port 14 is cylindrical in shape and is arranged at an angle.

[0035] In this embodiment, by setting an inclined observation port 14, it is convenient for staff to fully observe the reaction inside the reactor body 1 and avoid blind spots in observation.

[0036] In one embodiment, the central axis of the pin 17 coincides with the central axis of the observation glass 15, and the rotating plate 19 forms a rotating structure with the observation glass 15 through the handle 18 and the pin 17.

[0037] In this embodiment, the rotation of the handle 18 drives the rotating plate 19 to rotate via the pin 17. The rotation of the rotating plate 19 drives the cleaning brush 20 to clean the dirt at the bottom of the observation glass 15.

[0038] In this embodiment, the easy-to-clean polyaluminum chloride stirring reaction device is used as follows: First, the operator injects the polyaluminum chloride raw material into the reactor body 1 through the feed port 4. Then, the stirring motor 5 drives the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the two sets of connecting frames 7 to rotate synchronously. The rotation of the connecting frames 7 drives the stirring blades 8 to rotate and stir the polyaluminum chloride raw material. At the same time, the spring 9 drives the telescopic block 10 to slide along the inner wall of the connecting frame 7 through its own elasticity. The sliding of the telescopic block 10 causes the cleaning frame 12 at one end of the telescopic rod 11 to fit against the inner wall of the reactor body 1. When the cleaning frame 12 rotates, it will drive the cleaning plate 13 to slide along the inner wall of the reactor body 1, scraping off the adhering material on the inner wall of the reactor body 1. The scraped adhering material is discharged through the discharge port, realizing a rapid cleaning operation of the reactor body 1.

[0039] Next, the staff turns handle 18, which drives rotating plate 19 to rotate via pin 17. The rotation of rotating plate 19 drives cleaning brush 20 to clean the dirt at the bottom of observation glass 15. Then, the staff observes the stirring reaction of polyaluminum chloride in reactor body 1 through observation glass 15 on the inner wall of observation port 14.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stirring reaction apparatus for polyaluminum chloride that is easy to clean, characterized in that, The reactor includes a reactor body (1), a reactor cover (2) is installed at the top of the reactor body (1), a sealing flange (3) is provided at the connection between the reactor cover (2) and the reactor body (1), a feed inlet (4) is installed at the top edge of the reactor cover (2), a stirring motor (5) is fixedly connected to the top of the reactor cover (2), a rotating shaft (6) is fixedly connected to the output end of the stirring motor (5), a connecting frame (7) is fixedly connected to the outer wall of the rotating shaft (6), a stirring blade (8) is fixedly connected to the outer wall of the connecting frame (7), a spring (9) is fixedly connected to the inner wall of the connecting frame (7), a telescopic block (10) is fixedly connected to one end of the spring (9), a telescopic rod (11) that penetrates the interior of the connecting frame (7) is fixedly connected to the outer wall of the telescopic block (10), a cleaning frame (12) is fixedly connected to one end of the telescopic rod (11), and a cleaning plate (13) that fits against the inner wall of the reactor body (1) is fixedly connected to the outer wall of the cleaning frame (12).

2. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 1, characterized in that: The connecting frame (7) is provided in two sets, and the two sets of connecting frames (7) are parallel.

3. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 1, characterized in that: The stirring blade (8) is perpendicular to the connecting frame (7).

4. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 1, characterized in that: The cleaning rack (12) has the same shape as the cross-section of the reactor body (1), and the cleaning plate (13) is attached to the reactor body (1) through the telescopic rod (11) and the cleaning rack (12).

5. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 1, characterized in that: An observation port (14) is fixedly connected to the top of the vessel lid (2) on the side away from the feed inlet (4). An observation glass (15) is fixedly connected to the inner wall of the observation port (14). A sealing gasket (16) is installed on the inner wall of the observation glass (15). A pin (17) passes through the inner wall of the sealing gasket (16). A handle (18) is fixedly connected to the top of the pin (17). A rotating plate (19) is fixedly connected to the bottom of the pin (17). A cleaning brush (20) that fits against the bottom of the observation glass (15) is fixedly connected to the top of the rotating plate (19).

6. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 5, characterized in that: The observation port (14) is cylindrical in shape and is set at an angle.

7. The easy-to-clean polyaluminum chloride stirring reaction apparatus according to claim 5, characterized in that: The central axis of the pin (17) coincides with the central axis of the observation glass (15), and the rotating plate (19) forms a rotating structure with the observation glass (15) through the handle (18) and the pin (17).