Efficient filtering system for liquid ferric trichloride
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI FUXING ENVIRONMENTAL PROTECTION ENG CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-26
Smart Images

Figure CN224270430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration technology for ferric chloride production, and in particular to a high-efficiency filtration system for liquid ferric chloride. Background Technology
[0002] Ferric chloride can be used as a purifier for drinking water and a precipitant for wastewater treatment to remove heavy metals and phosphates from water. It is a highly efficient and inexpensive flocculant that can be used to treat drinking water, industrial water, industrial wastewater, municipal sewage, and swimming pool circulating water. It has significant effects on decolorization, deodorization, phosphorus removal, oil removal, sterilization, and reduction of COD and BOD in effluent.
[0003] The primary ferric chloride liquid produced during the liquid ferric chloride production process may contain some insoluble impurities (such as unreacted raw material particles). If these impurities are not removed, they will mix into the liquid ferric chloride product, affecting its purity and quality. In water treatment, liquid ferric chloride is used as a flocculant. If the liquid ferric chloride contains insoluble impurities, it may form additional precipitates during the flocculation process, affecting water clarity and subsequent treatment processes. Impurities may also cause wear or blockage to water treatment equipment, reducing its service life and operating efficiency.
[0004] Currently, the filter screens in existing high-efficiency filtration systems for liquid ferric chloride cannot be replaced quickly and must be replaced while the system is shut down, leading to a decrease in the filtration system's efficiency. Therefore, this invention proposes a high-efficiency filtration system for liquid ferric chloride to address the shortcomings of existing technologies. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this utility model is to provide a high-efficiency filtration system for liquid ferric chloride. When the inner cylinder rotates at high speed, impurities in the liquid ferric chloride are centrifuged and filtered through the filter cylinder. By setting an adjusting cylinder on the inner cylinder, the filter cylinder can be adjusted in height and height, allowing filtration to be performed at different positions through height adjustment, thereby maintaining the stable filtration performance of the system. The height adjustment process of the filter cylinder can be carried out without stopping the machine, which is highly convenient.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-efficiency filtration system for liquid ferric chloride includes a filter tank shell, an inner cylinder, and a filter cartridge. The inner cylinder is rotatably mounted inside the filter tank shell. A centrifugal drive mechanism is installed on the outer wall of the filter tank shell, driving the inner cylinder to rotate inside the filter tank shell. An annular groove is provided at the bottom of the inner cylinder. The filter cartridge is located inside the inner cylinder, with its lower end extending downward from the annular groove to the bottom of the inner cylinder. An adjusting cylinder is provided inside the inner cylinder, with its output end connected to the lower part of the filter cartridge. A flushing ring is provided on the lower outer wall of the filter tank shell, and multiple flushing pipes are provided on the inner side wall of the flushing ring, with one end of each flushing pipe extending into the interior of the filter tank shell. A water inlet pipe is provided on the side wall of the flushing ring, and the water inlet pipe is connected to an external high-pressure water supply system.
[0008] A further improvement is that the inner cylinder includes a cylinder body, a mounting beam, a hollow tube, a bottom plate, and a rotating ring. The mounting beam is located at the top inside the cylinder body, and the hollow tube is located at the bottom of the mounting beam. The bottom plate is located at the bottom inside the cylinder body, and the top of the bottom plate is connected to the lower end of the hollow tube. A rotating ring is located on the outer wall of the lower end of the cylinder body, and the rotating ring is rotatably connected to the inner wall of the filter tank shell.
[0009] A further improvement is that the regulating cylinder is located inside the hollow tube, and the output end of the regulating cylinder passes through the bottom plate and connects to the lower part of the filter cylinder. The annular groove is located between the bottom plate and the cylinder.
[0010] A further improvement is that the centrifugal drive mechanism includes a drive motor, a gear, and a gear ring. The upper end of the cylinder extends out of the top of the filter tank shell and is provided with a gear ring. A bracket is provided on the outer wall of the filter tank shell, and a drive motor is provided on the bracket. A gear is provided at the output end of the drive motor, and the gear meshes with the gear ring.
[0011] A further improvement is that: a first discharge pipe and a second discharge pipe are provided on the outer wall of the filter tank shell, the height of the first discharge pipe is adapted to the height of the bottom plate, and the second discharge pipe is located at the lower end of the filter tank shell.
[0012] A further improvement is that the mounting beam is equipped with a feed pipe, the lower end of which extends into the filter cylinder.
[0013] The beneficial effects of this utility model are as follows: This utility model sets up an inner cylinder inside the filter tank shell, driven by a core-driven mechanism to rotate the inner cylinder, and then sets up a filter cylinder inside the inner cylinder. When the inner cylinder rotates at high speed, impurities in the liquid ferric chloride are centrifuged and filtered through the filter cylinder. By setting an adjusting cylinder on the inner cylinder, the filter cylinder can be adjusted in height and height to filter at different positions, thereby maintaining the stable filtration performance of the system. The height adjustment of the filter cylinder can be carried out without stopping the machine, which is highly convenient. The flushing ring and flushing pipe set in this utility model can be used to flush the filter cylinder and maintain the stable filtration capacity of the filter cylinder. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0015] Figure 2 This is a three-dimensional schematic diagram of the inner cylinder structure of this utility model;
[0016] Figure 3 This is a three-dimensional schematic diagram of the flushing pipe installation structure of this utility model.
[0017] Figure 4 This is a schematic front view of the inner cylinder structure of this utility model;
[0018] Figure 5 This is a front view schematic diagram of the filter cartridge of this utility model installed inside the inner cylinder.
[0019] The components are: 1. Filter tank outer shell; 2. Inner cylinder; 201. Cylinder body; 202. Mounting beam; 203. Hollow tube; 204. Base plate; 205. Rotating ring; 3. Filter cylinder; 4. Ring groove; 5. Adjusting cylinder; 6. Flushing ring; 7. Flushing pipe; 8. Water inlet pipe; 9. Drive motor; 10. Gear; 11. Gear ring; 12. Support; 13. First discharge pipe; 14. Second discharge pipe; 15. Feed pipe. Detailed Implementation
[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0021] according to Figure 1-5As shown, this embodiment proposes a high-efficiency filtration system for liquid ferric chloride, including a filter tank shell 1, an inner cylinder 2, and a filter cartridge 3. The inner cylinder 2 is rotatably disposed inside the filter tank shell 1. A centrifugal drive mechanism is installed on the outer wall of the filter tank shell 1, which drives the inner cylinder 2 to rotate inside the filter tank shell 1. An annular groove 4 is provided at the bottom of the inner cylinder 2. The filter cartridge 3 is disposed inside the inner cylinder 2. The lower end of the filter cartridge 3 extends downward from the annular groove 4 to the bottom of the inner cylinder 2. An adjusting cylinder 5 is provided inside the inner cylinder 2. The output end of the adjusting cylinder 5 is connected to the lower part of the filter cartridge 3. A flushing ring 6 is provided on the lower outer wall of the filter tank shell 1. A flushing pipe 7 is provided on the inner side wall of the flushing ring 6. Multiple flushing pipes 7 are provided, and one end of each flushing pipe 7 extends into the interior of the filter tank shell 1. A water inlet pipe 8 is provided on the side wall of the flushing ring 6, and the water inlet pipe 8 is connected to an external high-pressure water supply system.
[0022] In use, the high-efficiency filtration system for liquid ferric chloride of this invention involves adding liquid ferric chloride into the filter cartridge 3. Initially, filtration is primarily achieved through the lower outer wall of the filter cartridge 3. As the inner cylinder 2 rotates via a centrifugal drive mechanism, centrifugal force centrifuges the liquid ferric chloride, trapping impurities inside the filter cartridge 3, while the clean liquid ferric chloride is centrifugally ejected into the outer shell 1 of the filter tank. When the filtration efficiency of the side wall at the current position of the filter cartridge 3 decreases, the adjusting cylinder 5 is activated to extend its output end, causing the filter cartridge 3 to move downwards, thus utilizing the side wall of the filter cartridge 3 at the next higher position for filtration. After the filtration operation is completed, the clean liquid ferric chloride is discharged from the system. Then, an external high-pressure water supply system is activated to introduce high-pressure water into the flushing ring 6, and the entire filter cartridge 3 is cleaned through the flushing pipe 7.
[0023] The inner cylinder 2 includes a cylinder body 201, a mounting beam 202, a hollow tube 203, a bottom plate 204, and a rotating ring 205. The mounting beam 202 is located at the upper part of the inner cylinder body 201, and the hollow tube 203 is located at the bottom of the mounting beam 202. The bottom plate 204 is located at the lower part of the inner cylinder body 201, and its top is connected to the lower end of the hollow tube 203. The rotating ring 205 is located on the outer wall of the lower end of the cylinder body 201, and is rotatably connected to the inner wall of the filter tank outer shell 1. The adjusting cylinder 5 is located inside the hollow tube 203. The output end of the adjusting cylinder 5 passes through the bottom plate 204 and connects to the lower part of the filter cylinder 3. The annular groove 4 is located between the bottom plate 204 and the cylinder body 201. The filter cylinder 3 of this invention moves up and down at the annular groove 4. When the adjusting cylinder 5 extends, it moves the filter cylinder 3 downwards; when the adjusting cylinder 5 retracts, it moves the filter cylinder 3 upwards.
[0024] The centrifugal drive mechanism includes a drive motor 9, a gear 10, and a gear ring 11. The upper end of the cylinder 201 extends beyond the top of the filter tank outer shell 1 and is provided with the gear ring 11. A bracket 12 is provided on the outer wall of the filter tank outer shell 1, and the drive motor 9 is mounted on the bracket 12. The output end of the drive motor 9 is provided with the gear 10, which meshes with the gear ring 11. By starting the drive motor 9, the gear 10 drives the inner cylinder 2, on which the gear ring 11 is mounted, to rotate. When the inner cylinder 2 rotates, the cylinder 201 rotates on the inner wall of the filter tank outer shell 1 via the rotating ring 205.
[0025] The outer wall of the filter tank shell 1 is provided with a first discharge pipe 13 and a second discharge pipe 14. The height of the first discharge pipe 13 is adapted to the height of the bottom plate 204, and the second discharge pipe 14 is located at the lower end of the filter tank shell 1. The outer wall of the filter cylinder 3 above the bottom plate 204 serves as the filtration section. The clean liquid ferric chloride centrifuged from here enters the interior of the filter tank shell 1 and is then discharged through the first discharge pipe 13. In this design, the liquid ferric chloride will not seep down from the annular groove 4. Even if it does seep down, it can be filtered through the filtration structure at the bottom of the filter cylinder 3. In this case, the filtered clean liquid ferric chloride can be discharged through the second discharge pipe 14. In this invention, the second discharge pipe 14 also serves as a discharge channel for subsequent flushing wastewater.
[0026] The mounting beam 202 is equipped with a feed pipe 15, the lower end of which extends into the filter cylinder 3. This arrangement ensures that liquid ferric chloride can smoothly enter the filter cylinder 3.
[0027] This invention features an inner cylinder 2 driven by a central drive mechanism, which rotates the inner cylinder 2 inside the outer shell 1 of the filter tank. A filter cylinder 3 is then placed inside the inner cylinder 2. As the inner cylinder 2 rotates at high speed, impurities in the liquid ferric chloride are centrifuged and filtered through the filter cylinder 3. An adjusting cylinder 5 is installed on the inner cylinder 2, allowing the filter cylinder 3 to be adjusted in height to perform filtration at different positions, thus maintaining stable filtration performance. The height adjustment of the filter cylinder 3 can be performed without stopping the system, offering high convenience. Furthermore, the flushing ring 6 and flushing pipe 7 in this invention work together to flush the filter cylinder 3, maintaining its stable filtration capacity.
[0028] 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 illustrative of the principles of this 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 high-efficiency filtration system for liquid ferric chloride, characterized in that: The filter includes a filter tank shell (1), an inner cylinder (2), and a filter cartridge (3). The inner cylinder (2) is rotatably disposed inside the filter tank shell (1). A centrifugal drive mechanism is installed on the outer wall of the filter tank shell (1) to drive the inner cylinder (2) to rotate inside the filter tank shell (1). An annular groove (4) is provided at the bottom of the inner cylinder (2). The filter cartridge (3) is disposed inside the inner cylinder (2). The lower end of the filter cartridge (3) extends downward from the annular groove (4) to below the inner cylinder (2). The cylinder (2) is equipped with an adjusting cylinder (5), the output end of which is connected to the lower part of the filter cylinder (3). The outer wall of the filter tank shell (1) is equipped with a flushing ring (6), and the inner side wall of the flushing ring (6) is equipped with a flushing pipe (7). There are multiple flushing pipes (7), one end of which extends into the filter tank shell (1). The side wall of the flushing ring (6) is equipped with a water inlet pipe (8), which is connected to an external high-pressure water supply system.
2. The high-efficiency filtration system for liquid ferric chloride according to claim 1, characterized in that: The inner cylinder (2) includes a cylinder body (201), a mounting beam (202), a hollow tube (203), a bottom plate (204), and a rotating ring (205). The mounting beam (202) is located at the top inside the cylinder body (201), and the hollow tube (203) is located at the bottom of the mounting beam (202). The bottom plate (204) is located at the bottom inside the cylinder body (201), and the top of the bottom plate (204) is connected to the lower end of the hollow tube (203). The rotating ring (205) is located on the outer wall of the lower end of the cylinder body (201), and the rotating ring (205) is rotatably connected to the inner wall of the filter tank shell (1).
3. The high-efficiency filtration system for liquid ferric chloride according to claim 2, characterized in that: The regulating cylinder (5) is installed inside the hollow tube (203). The output end of the regulating cylinder (5) passes through the bottom plate (204) and is connected to the lower part of the filter cylinder (3). The annular groove (4) is located between the bottom plate (204) and the cylinder (201).
4. The high-efficiency filtration system for liquid ferric chloride according to claim 2, characterized in that: The centrifugal drive mechanism includes a drive motor (9), a gear (10) and a gear ring (11). The upper end of the cylinder (201) extends out of the top of the filter tank shell (1) and is provided with a gear ring (11). A bracket (12) is provided on the outer wall of the filter tank shell (1). The drive motor (9) is provided on the bracket (12). The output end of the drive motor (9) is provided with a gear (10). The gear (10) meshes with the gear ring (11).
5. The high-efficiency filtration system for liquid ferric chloride according to claim 2, characterized in that: The outer wall of the filter tank shell (1) is provided with a first discharge pipe (13) and a second discharge pipe (14). The height of the first discharge pipe (13) is adapted to the height of the bottom plate (204), and the second discharge pipe (14) is located at the lower end of the filter tank shell (1).
6. The high-efficiency filtration system for liquid ferric chloride according to claim 2, characterized in that: The mounting beam (202) is provided with a feed pipe (15), the lower end of which extends into the filter cylinder (3).