Efficient filtration and purification device for iron-free aluminum sulfate
The iron-free aluminum sulfate filtration and purification device, with its multi-stage sedimentation tank and inclined plate frame structure, solves the problems of low efficiency and easy clogging of traditional devices, achieving efficient solution filtration and automatic cleaning, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520415103.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Traditional iron-free aluminum sulfate filtration and purification devices are inefficient, energy-intensive, and difficult to completely remove fine particulate impurities. The filter screen is prone to clogging, resulting in high maintenance costs.
The system employs a multi-stage sedimentation tank design and an inclined plate frame structure, combined with a porous drain pipe and an inclined filter screen, along with an automatic cleaning system, to achieve multi-stage sedimentation and efficient filtration of the solution, preventing filter screen clogging.
It improves the sedimentation and filtration efficiency of the solution, reduces filter clogging, lowers maintenance costs, and ensures long-term high-efficiency filtration performance.
Smart Images

Figure CN223887613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical engineering water treatment technology, and in particular to a high-efficiency filtration and purification device for iron-free aluminum sulfate. Background Technology
[0002] Iron-free aluminum sulfate, as an important chemical raw material, is widely used in water treatment, papermaking, textiles, and other industries. However, efficiently removing impurities to ensure product quality during its production process is a key technical challenge. Traditional filtration and purification methods often suffer from low efficiency, high energy consumption, or inability to completely remove specific impurities. Therefore, a highly efficient iron-free aluminum sulfate filtration and purification device is of great significance.
[0003] Traditional sedimentation tanks have a relatively simple design, which results in a slow settling rate for fine flocs. These fine particles are easily carried into subsequent treatment units by the water flow, affecting the overall water purification effect. In addition, the single filter structure is inadequate in dealing with suspended solids of different particle sizes and is prone to clogging. This requires frequent cleaning or replacement of the filter, increasing maintenance costs and workload. Therefore, we propose an iron-free aluminum sulfate high-efficiency filtration and purification device to overcome the above-mentioned defects. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a high-efficiency filtration and purification device for iron-free aluminum sulfate.
[0005] Technical Solution: A high-efficiency filtration and purification device for iron-free aluminum sulfate includes a base, which serves as the load-bearing carrier of the device. A sedimentation tank is fixedly installed on the top surface of the base. An inlet pipe is provided and connected to one side of the sedimentation tank, and an outlet pipe is provided and connected to the other side of the sedimentation tank. The sedimentation tank filters impurities from the solution and precipitates flocs. It also includes a first partition, a second partition, a porous drain pipe, a collection frame, a filter screen, a water pump, a hose, a cleaning pipe, and a nozzle. The first partition is fixedly installed on one side of the interior of the sedimentation tank, and the second partition is fixedly installed on the other side of the interior of the sedimentation tank. The first and second partitions divide the sedimentation tank into three different sedimentation chambers. A solution flow channel is provided on one side opposite to the top of partition 1 and partition 2. A multi-hole drain pipe is connected to the outlet pipe via a flange. A collection frame is fixedly installed on the other side of the top surface of the base. The collection frame has openings on both sides of its top. A filter screen is provided at the opening of the collection frame facing the multi-hole drain pipe. The multi-hole drain pipe faces the filter screen. A water pump is fixedly installed on the base. A cleaning pipe is installed inside the collection frame. The outlet of the water pump is connected to the cleaning pipe inside the collection frame via a hose. The cleaning pipe is provided with multiple nozzles. The nozzles of the cleaning pipe face the bottom of the filter screen. A drive component for moving the cleaning pipe is provided inside the collection frame.
[0006] In a preferred embodiment of this utility model, the driving component includes a guide rod, a lead screw, and a motor. The guide rod is fixedly installed on the inner wall of the collection frame, and the cleaning tube is slidably installed on the guide rod. The lead screw is also rotatably installed on the inner wall of the collection frame. The guide rod and the lead screw are parallel to each other, and the lead screw and the cleaning tube are threaded together. The motor is fixedly installed on one side of the outer wall of the collection frame, and the output shaft of the motor is connected to the lead screw. Under the guidance of the guide rod, the motor drives the cleaning tube to reciprocate within the collection frame through the lead screw, so that the cleaning tube can fully and automatically clean the filter screen.
[0007] In a preferred embodiment of this utility model, the porous drain pipe consists of a main pipe and multiple branch pipes. The multiple branch pipes of the porous drain pipe are spaced apart and evenly oriented towards the filter screen. The porous drain pipe can spray the discharged filtrate onto the filter screen over a wide area for filtration, thereby improving the filtration efficiency of the filter screen.
[0008] In a preferred embodiment of this utility model, the filter screen of the collection frame is inclined, with the filter screen tilted downwards towards the sedimentation tank on the side of the collection frame. While filtering the solution, the filter screen facilitates subsequent cleaning of impurities.
[0009] In a preferred embodiment of this utility model, it also includes an inclined plate frame. Sliding grooves are provided on the inner walls of the three compartments of the sedimentation tank. The inclined plate frame is slidably installed in each compartment of the sedimentation tank through the sliding grooves. Multiple inclined filter plates are provided inside the inclined plate frame. The filter plates can change the sedimentation path of the solution in the sedimentation tank, so that the precipitated flocculent matter can be efficiently precipitated to the bottom of the tank.
[0010] In a preferred embodiment of this utility model, a handle is fixedly installed on the top of each inclined plate frame. The handle facilitates the easy disassembly and assembly of the inclined plate frame into the sedimentation tank, thereby improving the efficiency of maintenance and replacement of the inclined plate frame.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. This utility model divides the sedimentation tank into three different sedimentation compartments by using partition one and partition two. Each compartment has a solution flow channel on the opposite side of its top, which allows the solution to settle in the sedimentation tank step by step, improving the sedimentation efficiency. In conjunction with the inclined plate frame in each compartment, the solution flow path is changed, increasing the chance of particle settling and further improving the sedimentation effect of flocculent matter.
[0013] 2. This utility model can spray the discharged filtrate onto the filter screen through a multi-hole drainage pipe consisting of a main pipe and multiple branch pipes, which are evenly distributed and facing the filter screen, thereby improving the filtration efficiency. In conjunction with the inclined setting of the filter screen, it is easy for the filtered impurities to slide to one side of the sedimentation tank, which is convenient for subsequent cleaning and ensures a smooth filtration process.
[0014] 3. The collection frame of this utility model is equipped with a cleaning pipe with multiple nozzles. Powered by a water pump, the cleaning pipe is driven by a motor through a lead screw to reciprocate within the collection frame, automatically cleaning the bottom of the filter screen, preventing filter screen blockage, and maintaining long-term high-efficiency filtration performance. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This diagram shows the connection relationship between the collection frame, filter screen, water pump, and hose of this utility model.
[0017] Figure 3 This is a schematic diagram showing the relationship between the cleaning tube, guide rod, lead screw, and motor of this utility model.
[0018] Figure 4 This is a schematic diagram of the sedimentation tank, partition 1, partition 2, and inclined plate frame of this utility model.
[0019] The above-mentioned attached drawings include the following reference numerals: 1. base, 2. sedimentation tank, 3. partition 1, 31. partition 2, 4. inlet pipe, 5. outlet pipe, 6. perforated drain pipe, 7. collection frame, 8. filter screen, 9. water pump, 10. hose, 11. cleaning pipe, 111. nozzle, 12. guide rod, 13. lead screw, 14. motor, 15. chute, 16. inclined plate frame, 17. handle. Detailed Implementation
[0020] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.
[0021] A high-efficiency filtration and purification device for iron-free aluminum sulfate, such as Figures 1-4As shown, the device includes a base 1, which serves as the load-bearing carrier. A sedimentation tank 2 is fixedly installed on the top surface of the base 1. An inlet pipe 4 is provided and connected to one side of the sedimentation tank 2, and an outlet pipe 5 is provided and connected to the other side of the sedimentation tank 2. The sedimentation tank 2 filters impurities from the solution and settles flocs. The device also includes a first partition 3, a second partition 31, a perforated drain pipe 6, a collection frame 7, a filter screen 8, a water pump 9, a hose 10, a cleaning pipe 11, and a nozzle 111. A first partition 3 is fixedly installed on one side of the interior of the sedimentation tank 2, and a second partition 31 is fixedly installed on the other side. The first partition 3 and the second partition 31 divide the sedimentation tank 2 into three sedimentation chambers with different stages. Solution flow channels are opened on opposite sides of the top of the first partition 3 and the second partition 31. A perforated drain pipe 6 is connected to the outlet pipe 5 via a flange. The other side of the top surface of the base 1 is fixedly installed with... The system includes a collection frame 7 with openings on both sides of its top. A filter screen 8 is installed at the opening of the collection frame 7 facing the porous drain pipe 6. The porous drain pipe 6 faces the filter screen 8. A water pump 9 is fixedly installed on the base 1. A cleaning pipe 11 is installed inside the collection frame 7. The outlet of the water pump 9 is connected to the cleaning pipe 11 inside the collection frame 7 via a hose 10. The cleaning pipe 11 is equipped with multiple nozzles 111, which face the bottom of the filter screen 8. The collection frame 7 is equipped with a drive unit for moving the cleaning pipe 11. The solution to be filtered and purified is added to the sedimentation tank 2 through the inlet pipe 4. The solution flows through the three compartments of the sedimentation tank 2 and completes multi-stage sedimentation. The filtrate after sedimentation is discharged from the porous drain pipe 6 onto the filter screen 8 for filtration and is then collected by the collection frame 7, further improving the filtration and purification effect of the solution.
[0022] like Figure 2 and Figure 3 As shown, the driving components include a guide rod 12, a lead screw 13, and a motor 14. The guide rod 12 is fixedly installed on the inner wall of the collection frame 7, and the cleaning pipe 11 is slidably installed on the guide rod 12. The lead screw 13 is also rotatably installed on the inner wall of the collection frame 7. The guide rod 12 and the lead screw 13 are parallel to each other, and the lead screw 13 and the cleaning pipe 11 are threaded together. The motor 14 is fixedly installed on one side of the outer wall of the collection frame 7. The output shaft of the motor 14 is connected to the lead screw 13. Under the guidance of the guide rod 12, the motor 14 drives the cleaning pipe 11 to reciprocate within the collection frame 7 through the lead screw 13, so that the cleaning pipe 11 can fully clean the filter screen 8 automatically.
[0023] like Figure 1 As shown, the porous drain pipe 6 consists of a main pipe and multiple branch pipes. The multiple branch pipes of the porous drain pipe 6 are spaced apart and evenly oriented towards the filter screen 8. The porous drain pipe 6 can spray the discharged filtrate onto the filter screen for filtration over a wide area, thereby improving the filtration efficiency of the filter screen. The filter screen 8 of the collection frame 7 is set at an angle. The filter screen 8 is tilted downwards on the side of the collection frame 7 facing the sedimentation tank 2. While filtering the solution, the filter screen 8 is also convenient for subsequent cleaning of impurities on the filter screen 8.
[0024] like Figure 4 As shown, it also includes an inclined plate frame 16. Slide grooves 15 are provided on the inner walls of the three compartments of the sedimentation tank 2. The inclined plate frame 16 is slidably installed in each compartment of the sedimentation tank 2 through the slide grooves 15. Multiple inclined filter plates are provided inside the inclined plate frame 16. The filter plates can change the sedimentation path of the solution in the sedimentation tank 2, so that the precipitated flocculent matter can be efficiently precipitated to the bottom of the tank.
[0025] like Figure 3 and Figure 4 As shown, each inclined plate frame 16 is fixedly equipped with a handle 17 on its top. The handle 17 facilitates the easy disassembly and assembly of the inclined plate frame 16 into the sedimentation tank 2, thereby improving the efficiency of maintenance and replacement of the inclined plate frame 16.
[0026] When using this device to filter and purify iron-free aluminum sulfate solution, the solution to be filtered enters the first compartment of the sedimentation tank 2 through the inlet pipe 4. Since each compartment is designed with a specific function to promote the precipitation of impurities in the solution, the solution begins a preliminary sedimentation process in the first compartment, where larger particles and flocculent matter settle to the bottom. As the solution level rises, it flows into the second compartment through the solution flow channel at the top of partition 3. The solution, after preliminary sedimentation in the first compartment, undergoes secondary sedimentation in the second compartment, and then flows into the third compartment through the solution flow channel at the top of partition 31, where the final sedimentation is completed. In this multi-stage sedimentation filtration process, because the sedimentation tank 2 is equipped with an inclined plate frame 16, which contains multiple inclined filter plates, these filter plates can change the sedimentation path of the solution in the sedimentation tank 2, allowing the precipitated flocculent matter to settle efficiently to the bottom of the tank. To improve sedimentation efficiency, the inclined plate frame 16 can be easily disassembled from the sedimentation tank 2 via the handle 17 on top, facilitating maintenance and replacement. After sedimentation, the filtrate is discharged through the porous drain pipe 6, which consists of a main pipe and multiple evenly distributed branch pipes. The porous drain pipe 6 can spray the filtrate onto the filter screen 8 for final filtration. The filtered solution is collected by the collection frame 7, while impurities remain on the filter screen 8. This not only improves filtration efficiency but also facilitates subsequent cleaning of residual impurities on the filter screen 8. To maintain the cleanliness of the filter screen 8, the water pump 9 is activated. The water pump 9 delivers water through the hose 10 to the cleaning pipe 11 connected to the lead screw 13. Multiple nozzles 111 on the cleaning pipe 11 reciprocate along the guide rod 12 under the drive of the motor 14, effectively and automatically rinsing the impurities on the filter screen 8, ensuring that the filter screen 8 maintains a high-efficiency filtration effect.
[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A high-efficiency filtration and purification device for iron-free aluminum sulfate, comprising a base (1), wherein a sedimentation tank (2) is fixedly installed on the top surface of the base (1), and an inlet pipe (4) is provided and connected to one side of the sedimentation tank (2). The sedimentation tank (2) is provided with and connected to an outlet pipe (5) on the other side; Its characteristics are, It also includes a first partition (3), a second partition (31), a porous drain pipe (6), a collection frame (7), a filter screen (8), a water pump (9), a hose (10), a cleaning pipe (11), and a nozzle (111). The first partition (3) is fixedly installed on one side of the interior of the sedimentation tank (2), and the second partition (31) is fixedly installed on the other side of the interior of the sedimentation tank (2). The first partition (3) and the second partition (31) divide the sedimentation tank (2) into three sedimentation compartments of different stages. The top of the first partition (3) and the second partition (31) are provided with solution flow channels. The outlet pipe (5) is connected to the porous drain pipe (6), and the collection frame (7) is fixedly installed on the other side of the top surface of the base (1). The collection frame (7) has openings on both sides of its top. A filter screen (8) is provided at the opening of the collection frame (7) facing the porous drain pipe (6). The porous drain pipe (6) faces the filter screen (8). A water pump (9) is fixedly installed on the base (1). A cleaning pipe (11) is installed inside the collection frame (7). The outlet of the water pump (9) is connected to the cleaning pipe (11) inside the collection frame (7) through a hose (10). The cleaning pipe (11) is provided with multiple nozzles (111). The nozzles (111) of the cleaning pipe (11) face the bottom of the filter screen (8). A driving component for driving the cleaning pipe (11) to move is provided inside the collection frame (7).
2. The high-efficiency filtration and purification device for iron-free aluminum sulfate according to claim 1, characterized in that, The driving component includes a guide rod (12), a lead screw (13), and a motor (14). The guide rod (12) is fixedly installed on the inner wall of the collection frame (7). The cleaning pipe (11) is slidably installed on the guide rod (12). The lead screw (13) is also rotatably installed on the inner wall of the collection frame (7). The lead screw (13) and the cleaning pipe (11) are threaded together. The motor (14) is fixedly installed on one side of the outer wall of the collection frame (7). The output shaft of the motor (14) is connected to the lead screw (13).
3. The high-efficiency filtration and purification device for iron-free aluminum sulfate according to claim 2, characterized in that, The porous drain pipe (6) consists of a main pipe and multiple branch pipes, with the multiple branch pipes of the porous drain pipe (6) spaced apart and evenly facing the filter screen (8).
4. The high-efficiency filtration and purification device for iron-free aluminum sulfate according to claim 3, characterized in that, The filter screen (8) of the collection frame (7) is set at an angle, and the filter screen (8) is tilted downward on the collection frame (7) towards the sedimentation tank (2).
5. The high-efficiency filtration and purification device for iron-free aluminum sulfate according to claim 4, characterized in that, It also includes an inclined plate frame (16). The inner walls of the three compartments of the sedimentation tank (2) are provided with sliding grooves (15). The inclined plate frame (16) is slidably installed in each compartment of the sedimentation tank (2) through the sliding grooves (15). The inclined plate frame (16) is provided with multiple inclined filter plates inside.
6. The high-efficiency filtration and purification device for iron-free aluminum sulfate according to claim 5, characterized in that, Each of the inclined plate frames (16) is fixedly fitted with a handle (17) at its top.