Sewage circulating filtering device

Abstract

The utility model relates to a sewage circulating filtering device which comprises a filtering box, a sand storage box is arranged on the lower end face of the filtering box, the sides, close to each other, of the sand storage box and the filtering box are open, a separation barrel is arranged in the filtering box and is vertically and fixedly arranged in the filtering box, and a filtering barrel is arranged between the sand storage box and the separation barrel; the lower end face of the filter cartridge is fixedly connected to the sand storage box, the space between the filter cartridge and the sand storage box is filled with filter sand, the upper end face of the filter box is provided with a water inlet and a water outlet which are communicated with the filter box, the water outlet and the water inlet are formed in the inner side and the outer side of the partition layer respectively, and a fine filter screen is arranged in the partition cartridge. The sewage treatment device has the effect of efficiently and stably filtering sewage.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a sewage circulation filtering device. Background Art

[0002] In the process of digital printing of fabrics, a large amount of sewage will be generated. The sewage is often mixed with a variety of particulate impurities and harmful elements. Pouring the sewage directly into the sewer pipe is easy to clog the sewer pipe, which does not meet the requirements of the green economy. In the existing technology, the sewage is mainly poured into a sewage treatment barrel, and the stones in the sewage are initially screened through a filter plate, and then the sewage flows into a purification device through a pipe, so that it can be purified and reused.

[0003] A Chinese patent with application number 202320693646.7 discloses a sewage circulation filtration device, including a treatment tank, a sewage discharge pipe is inserted into the outside of the treatment tank, and a first motor is embedded in the top of the treatment tank, a drive rod is connected to the power output end of the first motor, and a first scraper is fixed to the outer wall of the drive rod, a first filter plate is fixed to one side of the interior of the treatment tank, and a guide chamber is embedded in the bottom end of the interior of the treatment tank.

[0004] However, the device only performs preliminary filtration of sewage through a fine filter. When the water intake is too large, the scraper has limited cleaning effect on the fine filter, which makes it easy for the fine filter to be blocked, resulting in poor filtering effect.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to improve the filtering effect of the filter net during the working process, the present application provides a sewage circulation filtering device.

[0007] The present application provides a sewage circulation filtration device, which adopts the following technical solution:

[0008] A sewage circulation filtration device comprises a filter box, a sand storage box at the lower end surface of the filter box, the sand storage box and the filter box are both open on the side close to each other, a partition cylinder is arranged in the filter box, the partition cylinder is vertically fixed in the filter box, a filter cylinder is arranged between the sand storage box and the partition cylinder, the lower end surface of the filter cylinder is fixedly connected to the sand storage box, the space between the filter cylinder and the sand storage box is filled with filter sand, the upper end surface of the filter box is provided with a water inlet and a water outlet connected to the filter box, the water outlet and the water inlet are respectively arranged on the inner side and the outer side of the partition cylinder, and a fine filter screen is arranged in the partition cylinder.

[0009] By adopting the above technical solution, a sand storage box is arranged at the lower end of the filter box, and the sand storage box is filled with filter sand. When the sewage passes through the sand storage box, the sewage is coarsely filtered by the filter sand. The coarsely filtered sewage passes through the filter cylinder and is further filtered through a fine filter mesh, thereby enhancing the filtering effect of the sewage.

[0010] Optional: A cleaning component useful for cleaning the fine filter is provided in the filter box, the cleaning component includes a scraper, a rotating rod and a motor for driving the rotating rod to rotate, the upper end of the rotating rod is rotatably connected to the filter box, the rotating axis of the rotating rod coincides with the central axis of the separating cylinder, the lower end of the rotating rod is connected to the fine filter, the scraper is fixedly provided at the lower end of the rotating rod, and the upper end of the scraper abuts against the fine filter.

[0011] By adopting the above technical solution, the motor drives the rotating rod to rotate, and the scraper rotates with the rotating rod to clean the impurities on the surface of the fine filter, thereby ensuring the filtering effect of the fine filter.

[0012] Optionally: wool strips are provided on both sides of the scraper, and the wool part of the wool strips abuts against the fine filter.

[0013] By adopting the above technical solution, the scraper is lifted to improve the cleaning effect of the fine filter.

[0014] Optionally: a sealing gasket is sleeved on the rotating rod, and the upper end surface of the fine filter is in contact with the sealing gasket.

[0015] By adopting the above technical solution, the sealing between the rotating rod and the fine filter is enhanced, which is beneficial to enhancing the filtering effect of the fine filter.

[0016] Optionally: an annular protrusion is arranged on the outer wall of the lower end of the separation cylinder, and a plurality of clamping blocks for clamping with the annular protrusion are arranged on the outer side of the fine filter.

[0017] By adopting the above technical solution, the fine filter can be easily disassembled and installed, saving operation time.

[0018] Optionally, the filter box and the sand storage box are detachably connected, and a plurality of bolts are provided on the filter box. One end of the bolts is threadedly connected to the sand storage box through the filter box.

[0019] By adopting the above technical solution, it is convenient to replace and clean the clean sand in the sand storage box.

[0020] Optionally: a rubber ring is provided on the upper end surface of the sand storage box.

[0021] The adoption of the above technical solution is conducive to enhancing the sealing between the filter box and the sand storage box.

[0022] Optionally: a reinforcing bracket for supporting the inner wall of the filter cartridge is provided in the filter cartridge.

[0023] By adopting the above technical solution, the filter cartridge can be prevented from being deformed due to long-term squeezing of the filter sand, thereby extending the service life of the filter cartridge.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. This application installs a sand storage box on the filter box, and the filter sand in the sand storage box coarsely filters the sewage, reduces the filtering pressure of the fine filter, and enhances the filtering efficiency of the equipment.

[0026] 2. By adding a cleaning component to the filter box, it is easier to clean impurities on the filter surface and ensure the filtering effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application;

[0029] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0030] In the figure, 1. filter box; 11. support foot; 12. partition cylinder; 121. annular protrusion; 13. water inlet; 14. water outlet; 15. fine filter; 151. clamping block; 16. bolt; 2. sand storage box; 21. filter cylinder; 211. reinforcement bracket; 22. filter sand; 23. rubber ring; 3. cleaning component; 31. motor; 32. rotating rod; 321. sealing gasket; 33. scraper; 331. wool strip. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application discloses a sewage circulation filtering device, such as Figure 1 and Figure 2As shown, it includes a cylindrical filter box 1, and the outer wall of the filter box 1 is provided with three support legs 11 for supporting the filter box 1. In order to ensure the stability of the filter box 1, the support legs 11 are arranged circumferentially along the axis of the filter box 1, and the lower ends of the support legs 11 are abutted against the placement platform. The upper end surface of the filter box 1 is provided with a water inlet hole connected to the filter box 1, and the sewage is transported to the filter box 1 through the water inlet 13. The lower end of the filter box 1 is provided with a sand storage box 2, and the sand storage box 2 and the filter box 1 are both opened on one side close to each other. A plurality of bolts 16 for fixing the sand storage box 2 are provided on the side wall of the lower end of the filter box 1. The plurality of bolts 16 are evenly arranged circumferentially along the axis of the filter box 1. The screw part of the bolt 16 is downwardly connected to the filter box 1, and the bolt 16 passes through one end of the filter box 1 and is threadedly connected to the sand storage box 2. The sand storage box 2 can be disassembled by rotating the bolt 16. In order to ensure the sealing effect between the filter box 1 and the sand storage box 2, a rubber ring 23 is fixedly provided on the upper end surface of the sand storage box 2. The rubber ring 23 is driven upward to abut against the filter cylinder 21 by the bolt 16, thereby enhancing the sealing effect between the sand storage box 2 and the filter box 1.

[0033] A separation cylinder 12 for dividing the inner cavity of the filter box 1 is provided in the filter box 1. The separation cylinder 12 is vertically fixed in the filter box 1. The upper end of the separation cylinder 12 is fixedly connected to the inner wall of the filter box 1. The axis of the separation cylinder 12 coincides with the axis of the filter box 1. The inner cavity of the filter box 1 is divided into two parts by the separation cylinder 12. The upper end surface of the filter box 1 is provided with a water inlet 13 and a water outlet 14 connected to the filter box 1. The water inlet 13 and the water outlet 14 are respectively arranged on the inner and outer sides of the separation cylinder 12. The lower end surface of the separation cylinder 12 is flush with the lower end surface of the filter box 1. The sewage on the outside of the separation cylinder 12 is transported to the inside of the separation cylinder 12 through the gap between the separation cylinder 12 and the sand storage box 2.

[0034] like Figure 2 and Figure 3 As shown, a filter cartridge 21 is provided in the sand storage box 2, and the lower end surface of the filter cartridge 21 is fixedly provided on the bottom surface of the inner cavity of the sand storage box 2. The filter cartridge 21 and the separation cylinder 12 overlap in the vertical direction. In order to ensure the filtering effect on the sewage, the upper end surface of the filter cartridge 21 abuts against the lower end surface of the separation cylinder 12. The filter sand 22 for filtering the sewage is filled between the outer wall of the filter cartridge 21 and the sand storage box 2. The sewage passes through the filter cartridge 21 and enters the inner wall of the filter cartridge 21 after being filtered by the filter sand 22. In order to prevent the filter cartridge 21 from being deformed due to the long-term extrusion of the filter sand 22, a plurality of reinforcing brackets 211 for supporting the inner wall of the filter cartridge 21 are provided in the filter cartridge 21. The reinforcing bracket 211 is cross-shaped, and the end of the reinforcing bracket 211 is fixedly connected to the inner wall of the filter cartridge 21 to ensure the stability of the filter cartridge 21 during operation.

[0035] A fine filter 15 for further filtering sewage is arranged between the separation cylinder 12 and the filter cylinder 21. In order to facilitate the disassembly and replacement of the fine filter 15, an annular protrusion 121 is arranged on the outer wall of the lower end of the separation cylinder 12, and a plurality of snap-in blocks 151 for snapping with the strip protrusion 121 are arranged on the outer wall of the fine filter 15. The snap-in blocks 151 are arranged along the circular circumference of the fine filter 15. The snap-in blocks 151 are made of plastic material that is easier to deform. By pressing the fine filter 15 upwards, the fine filter 15 and the separation cylinder 12 can be fixedly connected.

[0036] A cleaning assembly 3 for cleaning the fine filter 15 is arranged in the separation cylinder 12. The cleaning assembly 3 includes a scraper 33, a rotating rod 32 and a motor 31 for driving the rotating rod 32 to rotate. The upper end of the rotating rod 32 is rotatably connected to the top surface of the inner wall of the filter box 1. The rotating axis of the rotating rod 32 coincides with the axis of the filter box 1. The upper end of the rotating rod 32 is connected to the filter box 1. The motor 31 is fixedly arranged on the upper end surface of the filter box 1. The output shaft of the motor 31 and the end of the rotating rod 32 passing through the filter box 1 are coaxially fixedly connected. The rotation of the motor 31 can drive the rotating rod 32 to rotate. The lower end of the rotating rod 32 is connected to the fine filter 15. In order to enhance the sealing effect between the rotating rod 32 and the fine filter 15, a bearing is sleeved on the rotating rod 32, and a sealing gasket 321 is fixedly arranged on the outer end of the bearing. The upper end surface of the fine filter 15 abuts against the sealing gasket 321 upward, and the gap between the rotating rod 32 and the fine filter 15 is sealed by the sealing gasket 321. The scraper 33 is detachably arranged at the lower end of the rotating rod 32, and the lower end side wall of the rotating rod 32 is provided with an external thread. The scraper 33 is provided with a threaded hole for matching and connecting with the external thread of the rotating rod 32, so as to facilitate the removal and replacement of the scraper 33. The upper end surface of the scraper 33 abuts against the filter plate upward, and wool strips 331 are arranged on both sides of the scraper 33. The wool part of the wool strip 331 abuts against the bottom surface of the fine filter 15. The scraper 33 is driven to rotate by the rotating rod 32, and the scraper 33 and the wool strip 331 clean the fine filter 15.

[0037] The implementation principle of this embodiment is:

[0038] The sewage is transported to the filter box 1 through the water inlet 13 of the filter box 1, and is preliminarily filtered by the filter sand 22 in the sand storage box 2. The sewage after the preliminary filtration is transported to the inner side of the filter cylinder 21 through the filter cylinder 21, and the sewage is continuously transported upward to the fine filter screen 15 for a second fine filtration. The motor 31 drives the rotating rod 32 to rotate, and the scraper 33 continuously cleans the fine filter screen 15 to ensure the filtering effect of the fine filter screen 15.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sewage circulation filtering device, characterized in that: The invention comprises a filter box (1), a sand storage box (2) at the lower end surface of the filter box (1), the sand storage box (2) and the filter box (1) being arranged with an opening on the adjacent side, a partition cylinder (12) being arranged inside the filter box (1), the partition cylinder (12) being arranged vertically and fixedly inside the filter box (1), a filter cylinder (21) being arranged between the sand storage box (2) and the partition cylinder (12), the lower end surface of the filter cylinder (21) being fixedly connected to the sand storage box (2), the space between the filter cylinder (21) and the sand storage box (2) being filled with filter sand (22), a water inlet (13) and a water outlet (14) being arranged on the upper end surface of the filter box (1) and being connected to the filter box (1), the water outlet (14) and the water inlet (13) being arranged on the inner side and the outer side of the partition cylinder (12) respectively, and a fine filter screen (15) being arranged inside the partition cylinder (12).

2. A sewage circulation filtering device according to claim 1, characterized in that: The filter box (1) is provided with a cleaning assembly (3) for cleaning the fine filter (15), the cleaning assembly (3) comprising a scraper (33), a rotating rod (32) and a motor (31) for driving the rotating rod (32) to rotate, the upper end of the rotating rod (32) is rotatably connected to the filter box (1), the rotating axis of the rotating rod (32) coincides with the central axis of the partition cylinder (12), the lower end of the rotating rod (32) is connected to the fine filter (15), the scraper (33) is fixedly arranged at the lower end of the rotating rod (32), and the upper end of the scraper (33) abuts against the fine filter (15).

3. A sewage circulation filtering device according to claim 2, characterized in that: Wool strips (331) are provided on both sides of the scraper (33), and the wool part of the wool strips (331) abuts against the fine filter (15).

4. A sewage circulation filtering device according to claim 2, characterized in that: A sealing gasket (321) is sleeved on the rotating rod (32), and the upper end surface of the fine filter (15) abuts against the sealing gasket (321).

5. A sewage circulation filtering device according to claim 2, characterized in that: An annular protrusion (121) is provided on the outer wall of the lower end of the separation cylinder (12), and a plurality of clamping blocks (151) for clamping with the annular protrusion (121) are provided on the outer side of the fine filter (15).

6. A sewage circulation filtering device according to claim 1, characterized in that: The filter box (1) and the sand storage box (2) are detachably connected. A plurality of bolts (16) are provided on the filter box (1). One end of the bolts (16) penetrates through the filter box (1) and is threadedly connected to the sand storage box (2).

7. A sewage circulation filtering device according to claim 6, characterized in that: The upper end surface of the sand storage box (2) is provided with a rubber ring (23).

8. A sewage circulation filtering device according to claim 1, characterized in that: A reinforcing bracket (211) for supporting the inner wall of the filter cartridge (21) is provided in the filter cartridge (21).

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