Self-cleaning filtering device for wastewater treatment

Abstract

The utility model discloses a self-cleaning filtering device for wastewater treatment, which comprises a sewage bin, a filtering mechanism for filtering sewage is arranged at the upper end of the sewage bin, the filtering mechanism comprises a first fixing block, a transmission shaft, a filtering barrel, a second fixing block, a hollow pipe and a water suction pipe, and the first fixing block is fixedly arranged on one side of the upper end of the sewage bin. A transmission shaft is movably arranged in the middle of the inner side of the first fixing block through a bearing, a filtering barrel is fixedly arranged at one end of the transmission shaft, a second fixing block is fixedly arranged on the side, away from the first fixing block, of the upper end of the sewage bin, and a hollow pipe is fixedly arranged in the middle of the inner side of the second fixing block; one end, close to the filtering barrel, of the hollow pipe is movably connected with the filtering barrel through a bearing. According to the utility model, wastewater can be filtered, and the filter cartridge can be cleaned while filtering is carried out, so that the progress of the whole filtering process is not influenced, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a self-cleaning filter device for wastewater treatment. Background Art

[0002] In the prior art, when treating wastewater, structures such as filter elements and filter plates are generally used for filtration to filter impurities in the wastewater. However, after such a filtration device has been used for a long time, the filter elements and filter plates will be clogged. When cleaning such filter elements and filter plates in the prior art, backwashing is often used for automatic cleaning or manual cleaning. In this way, it is necessary to stop filtration before cleaning, which affects the filtration processing efficiency of the entire device. Therefore, in order to address this problem, an improved self-cleaning filtration device for wastewater treatment is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a self-cleaning filter device for wastewater treatment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a self-cleaning filtering device for wastewater treatment, comprising a sewage tank, a filtering mechanism for filtering sewage is provided at the upper end of the sewage tank, the filtering mechanism comprising a first fixed block, a transmission shaft, a filter barrel, a second fixed block, a hollow tube, and a water suction pipe, a first fixed block is fixedly provided on one side of the upper end of the sewage tank, a transmission shaft is movably provided on the middle part of the inner side of the first fixed block through a bearing, a filter barrel is fixedly provided on one end of the transmission shaft, a second fixed block is fixedly provided on the side of the upper end of the sewage tank away from the first fixed block, a hollow tube is fixedly provided on the middle part of the inner side of the second fixed block, an end of the hollow tube close to the filter barrel is movably connected to the filter barrel through a bearing, and a water suction pipe is fixedly provided on the lower end of the hollow tube.

[0005] Preferably, a water inlet pipe is fixedly provided on one side of the lower end of the sewage tank, and sewage to be filtered is conveniently injected into the sewage tank through the water inlet pipe.

[0006] Preferably, a motor is fixedly provided on the surface of the first fixed block, and the output terminal of the motor is fixedly connected to the transmission shaft via a coupling, so that the transmission shaft can be easily driven to rotate by the motor.

[0007] Preferably, a backflush pipe is fixedly provided at the upper end of the water suction pipe inside the hollow tube, and a nozzle assembly is fixedly provided at one end of the backflush pipe. The backflush pipe and the nozzle assembly are internally connected to each other, and clean water can be sprayed through the backflush pipe and the nozzle assembly, thereby backflushing and cleaning the interior of the filter barrel.

[0008] Preferably, a support rod is movably provided in the middle of the side of the filter barrel away from the hollow tube through a bearing, and the support rod is fixedly connected to the nozzle assembly, so that the stability of the nozzle assembly can be ensured by the support rod.

[0009] Preferably, a scraper is fixedly provided on the outer surface of the filter barrel, and the scraper can scrape up some garbage and throw it out to the outside of the sewage tank through the centrifugal force. If you are worried about throwing out the wastewater, when necessary, for example, if there is a lot of debris attached to the surface of the filter barrel, increase the rotation speed of the filter barrel and throw out the debris on the surface of the filter barrel.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model can throw the debris out to the outside of the sewage tank as the filter barrel rotates and the scraper and centrifugal force work, so that the filter barrel can filter the wastewater while automatically cleaning the filter screen during rotation.

[0012] 2. The utility model continuously drives the filter barrel to rotate through the motor, and sprays high-pressure clean water through multiple nozzles, so that the mesh can be backflushed from the inside to the outside of the filter barrel, thereby cleaning the filter barrel; and at this time, the filtration can be carried out normally during cleaning without stopping the filtration system, thereby ensuring the progress of the filtration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the self-cleaning filter device for wastewater treatment of the utility model;

[0014] Figure 2 This is a side view of the self-cleaning filter device for wastewater treatment according to the present invention;

[0015] Figure 3 This is a cross-sectional view of the self-cleaning filter device for wastewater treatment of the utility model Figure 1 ;

[0016] Figure 4 This is a cross-sectional view of the self-cleaning filter device for wastewater treatment of the utility model Figure 2 .

[0017] In the figure: 1. Sewage tank; 2. First fixed block; 3. Drive shaft; 4. Filter barrel; 5. Second fixed block; 6. Hollow pipe; 7. Suction pipe; 8. Water inlet pipe; 9. Motor; 10. Backflush pipe; 11. Nozzle assembly; 12. Support rod; 13. Scraper. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: a self-cleaning filtering device for wastewater treatment, including a sewage tank 1, a filtering mechanism for filtering sewage is provided at the upper end of the sewage tank 1, and the filtering mechanism includes a first fixed block 2, a transmission shaft 3, a filter barrel 4, a second fixed block 5, a hollow tube 6, and a water suction pipe 7. The first fixed block 2 is fixedly provided on one side of the upper end of the sewage tank 1, and the transmission shaft 3 is movably provided on the middle part of the inner side of the first fixed block 2 through a bearing. The filter barrel 4 is fixedly provided on one end of the transmission shaft 3, and the second fixed block 5 is fixedly provided on the side of the upper end of the sewage tank 1 away from the first fixed block 2, and a hollow tube 6 is fixedly provided in the middle part of the inner side of the second fixed block 5. The end of the hollow tube 6 close to the filter barrel 4 is movably connected to the filter barrel 4 through a bearing, and a water suction pipe 7 is fixedly provided at the lower end of the hollow tube 6.

[0020] A water inlet pipe 8 is fixedly provided on one side of the lower end of the sewage tank 1, through which the sewage to be filtered is conveniently injected into the sewage tank 1;

[0021] The first fixed block 2 is fixedly provided with a motor 9, and the output terminal of the motor 9 is fixedly connected to the transmission shaft 3 through a coupling, so that the motor 9 can easily drive the transmission shaft 3 to rotate;

[0022] A backwash pipe 10 is fixedly provided at the upper end of the water suction pipe 7 inside the hollow tube 6, and a nozzle assembly 11 is fixedly provided at one end of the backwash pipe 10. The backwash pipe 10 and the nozzle assembly 11 are internally connected to each other, and clean water can be sprayed through the backwash pipe 10 and the nozzle assembly 11, thereby backwashing and cleaning the interior of the filter barrel 4;

[0023] A support rod 12 is movably provided in the middle of the side of the filter barrel 4 away from the hollow tube 6 through a bearing. The support rod 12 is fixedly connected to the nozzle assembly 11, and the stability of the nozzle assembly 11 can be ensured by the support rod 12.

[0024] A scraper 13 is fixedly provided on the outer surface of the filter barrel 4. The scraper 13 can scrape up some garbage and throw it out to the outside of the sewage tank 1 through the centrifugal force. If you are worried about throwing out the wastewater, when necessary, for example, if there is a lot of debris attached to the surface of the filter barrel 4, increase the rotation speed of the filter barrel 4, throw out the debris on the surface of the filter barrel 4, and then slowly rotate the filter barrel 4.

[0025] Working principle: The filtration path of this device is that the water inlet pipe 8 injects the sewage into the sewage tank 1, and then it is filtered through the filter barrel 4. Impurities are blocked outside the filter barrel 4, and the sewage can flow into the filter barrel 4, and then it is pumped away by the suction pipe 7 for subsequent wastewater and sewage treatment.

[0026] The blocked impurities are either settled inside the sewage pool and wait for a long time of use to undergo unified bottom impurity treatment, while the impurities floating on the water surface and attached to the surface of the filter barrel 4 can be thrown out to the outside of the sewage tank 1 as the filter barrel 4 rotates and the scraper 13 and centrifugal force act, so that the filter barrel 4 can filter wastewater while automatically cleaning the filter screen during rotation; and if there are a small number of impurities, it is better to fit inside the mesh of the filter barrel 4; at this time, the filter barrel 4 is continuously driven to rotate by the motor 9, and high-pressure clean water is sprayed through multiple nozzles, so that the mesh can be backflushed from the inside to the outside of the filter barrel 4, thereby cleaning the filter barrel 4; and at this time, the filtration can be carried out normally during cleaning without stopping the filtration system, thereby ensuring the progress of the filtration process.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning filter device for wastewater treatment, comprising a sewage tank (1), characterized in that: The upper end of the sewage tank (1) is provided with a filtering mechanism for filtering sewage, and the filtering mechanism comprises a first fixed block (2), a transmission shaft (3), a filter barrel (4), a second fixed block (5), a hollow tube (6), and a water suction pipe (7). The first fixed block (2) is fixedly provided on one side of the upper end of the sewage tank (1), and the transmission shaft (3) is movably provided on the middle part of the inner side of the first fixed block (2) through a bearing. The filter barrel (4) is fixedly provided on one end of the transmission shaft (3). The second fixed block (5) is fixedly provided on the side of the upper end of the sewage tank (1) away from the first fixed block (2), and the hollow tube (6) is fixedly provided on the middle part of the inner side of the second fixed block (5). The end of the hollow tube (6) close to the filter barrel (4) is movably connected to the filter barrel (4) through a bearing. The water suction pipe (7) is fixedly provided on the lower end of the hollow tube (6).

2. The self-cleaning filter device for wastewater treatment according to claim 1, characterized in that: A water inlet pipe (8) is fixedly provided on one side of the lower end of the sewage tank (1).

3. The self-cleaning filter device for wastewater treatment according to claim 1, characterized in that: An electric motor (9) is fixedly provided on the surface of the first fixed block (2), and an output terminal of the electric motor (9) is fixedly connected to the transmission shaft (3) via a coupling.

4. The self-cleaning filter device for wastewater treatment according to claim 1, characterized in that: A recoil pipe (10) is fixedly provided at the upper end of the water suction pipe (7) inside the hollow pipe (6), a nozzle assembly (11) is fixedly provided at one end of the recoil pipe (10), and the recoil pipe (10) and the nozzle assembly (11) are internally connected to each other.

5. The self-cleaning filter device for wastewater treatment according to claim 4, characterized in that: A support rod (12) is movably provided in the middle of one side of the filter barrel (4) away from the hollow tube (6) via a bearing, and the support rod (12) is fixedly connected to the spray head assembly (11).

6. The self-cleaning filter device for wastewater treatment according to claim 1, characterized in that: A scraper (13) is fixedly provided on the outer surface of the filter barrel (4).

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