CN221579954U - A sand filter tank for sewage treatment - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and provides a sand filter tank for sewage treatment, comprising: a plurality of filter tanks and a plurality of first connecting pipes, wherein the plurality of the first connecting pipes are fixedly mounted on the bottom of the outer surface of the filter tank, a first discharge pipe is fixedly mounted on the outer surface of the plurality of the first connecting pipes away from the filter tank on one side, a rotary switch is movably embedded in the outer surface of the first discharge pipe away from the first connecting pipe on the other side, and the filter sand in the filter tank is flushed by rotating the two-way valve, thereby solving the problem that the existing device lacks necessary flushing devices, and needs to use other tools to inject clean water into the drain port to flush the filter sand, which increases the work process and also causes a certain waste of water resources. At the same time, after long-term use, impurities are easily accumulated on the inner wall of the tank body, and the device lacks a cleaning device for the inner wall of the tank body, which affects the filtering effect and is not conducive to the problem of later use.

Description

A sand filter tank for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sand filter tank for sewage treatment.

Background Art

Sand filtration is a water treatment technology that is commonly used in water purification and sewage treatment. It is a physical filtration method that uses a layer of sand as a filter medium to intercept suspended matter, particulate matter and some microorganisms in the water, thereby improving water quality. Sand filtration, as a common water treatment technology, is widely used in drinking water treatment plants, industrial water treatment, swimming pool water purification and sewage treatment. It has obvious effects on improving water quality, is simple to operate and has relatively low maintenance costs. Therefore, it has been widely used and adopted in many water treatment systems.

In the prior art, for example, CN217472796U discloses a sewage treatment sand filter tank that can quickly change sand, including a tank body, an upper end of the tank body is provided with an inlet pipe, a lower end of the tank body is provided with an outlet pipe, and a side wall of the tank body is provided with a sand changing port; a rotating shaft is vertically passed through the tank body, and a horizontally arranged filter plate is installed at the lower end of the rotating shaft; a rotating tube is sleeved on the rotating shaft, a motor is installed at the upper end of the tank body through a bracket, a first driven end face gear is installed at the upper end of the rotating tube, and a first active end face gear is provided on the motor shaft of the motor; a second driven end face gear is sleeved on the upper end of the rotating shaft, a second active end face gear is provided on the motor shaft, a spring is provided between the second driven end face gear and the rotating shaft, and the second active end face gear and the second driven end face gear are both one-way gears; a stirring blade is provided on the rotating tube; the present application drives the stirring blade to rotate by a motor to improve the backwashing efficiency, and drives the rotating shaft and the filter plate to rotate by the motor, so as to facilitate and quickly take out sand and change sand.

However, in the above scheme, after the equipment has been running for a period of time, a layer of intercepted substances will gradually accumulate on the surface of the sand layer, resulting in a decrease in the filtration efficiency. At this time, the filter sand needs to be backwashed. The device lacks the necessary flushing device, and other tools are needed to inject clean water into the drain outlet to flush the filter sand, which increases the work process and also causes a certain waste of water resources. At the same time, after long-term use, impurities are easily accumulated on the inner wall of the tank. The device lacks a cleaning device for the inner wall of the tank, which affects the filtration effect and is not conducive to later use.

Utility Model Content

The purpose of the utility model is to solve the problem in the prior art that after the equipment has been running for a period of time, a layer of intercepted materials will gradually accumulate on the surface of the sand layer, resulting in reduced filtration efficiency. At this time, the filter sand needs to be backwashed, but the device lacks necessary flushing devices, and other tools are needed to inject clean water into the drain outlet to flush the filter sand, which increases the work process and causes a certain waste of water resources. At the same time, after long-term use, impurities are easily accumulated on the inner wall of the tank, and the device lacks a cleaning device for the inner wall of the tank, which affects the filtration effect and is not conducive to later use.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A sand filter tank for sewage treatment, comprising: a plurality of filter tanks and a plurality of first connecting pipes, wherein the plurality of first connecting pipes are fixedly mounted on the bottom of the outer surface of the filter tank, the outer surface of the plurality of first connecting pipes away from the filter tank is fixedly mounted with a first discharge pipe, the outer surface of the first discharge pipe away from the first connecting pipe is movably embedded with a rotary switch, the outer surface of the plurality of filter tanks away from the first connecting pipe is fixedly mounted with a second connecting pipe, the outer surface of the plurality of second connecting pipes away from the filter tank is fixedly mounted with a feed pipe, the outer surface of the plurality of second connecting pipes near the middle is fixedly mounted with a second discharge pipe, one side of the outer surface of the plurality of second connecting pipes is movably embedded with a two-way valve, the inner surface of the plurality of filter tanks near the bottom is fixedly mounted with a second filter plate, the inner surface of the plurality of filter tanks near the middle is fixedly mounted with a first filter plate, the outer surface of the plurality of filter tanks away from the first connecting pipe is fixedly mounted with a motor, the inner surface of the plurality of filter tanks away from the motor is fixedly mounted with a support frame, and the top of the inner surface of the plurality of filter tanks is movably embedded with a rotating shaft.

Preferably, the plurality of rotating shafts all penetrate the first filter plate and the second filter plate and are movably embedded in the top of the outer surface of the support frame, and the output shafts of the plurality of motors all penetrate the filter tank and are fixedly installed on the top of the outer surface of the rotating shaft. The support frame supports the rotating shaft and enables the rotating shaft to rotate, and the motor is started, and the rotation of the motor drives the rotating shaft to rotate.

Preferably, the outer surfaces of the plurality of rotating shafts near the bottom are fixedly mounted with stirring blades, and the outer surfaces of the plurality of filtering tanks away from the first connecting pipe are fixedly mounted with hydraulic presses. The rotation of the rotating shaft drives the stirring blades to rotate, stirring the filtered sand in the tank body to prevent the filtered sand from sticking, and the extension and retraction of the hydraulic rod is controlled by the hydraulic press.

Preferably, a plurality of hydraulic rods are fixedly mounted on the top of the inner surface of the filter tanks, and a plurality of hydraulic presses are fixedly mounted on the top of the outer surface of the hydraulic rods through the filter tanks. The hydraulic rods are fixedly connected to the scraper, and the hydraulic press controls the extension and retraction of the hydraulic rods to drive the scraper to move.

Preferably, a scraper is fixedly mounted on the outer surface of the hydraulic rods away from the hydraulic press, and the scrapers are movably embedded in the inner surface of the filter tank near the top. The scraper cleans the inner wall of the tank.

Preferably, the outer surfaces of the plurality of filter tanks away from the motor are fixedly mounted with columns, and the outer surfaces of the plurality of columns away from the filter tanks are fixedly mounted with bottom plates. The columns support the filter tanks, and the bottom plates support the entire device, and the entire device is connected as a whole.

Preferably, a sand inlet is fixedly installed on one side of the outer surface of the plurality of filter tanks, and a cover plate is threadedly sleeved on the outer surface of the plurality of sand inlets away from the filter tank. Sand is put into the filter tank through the sand inlet, and the filter sand in the filter tank can be replaced. A threaded rod is movably embedded on the outer surface of the cover plate, and the cover plate and the sand inlet are connected by the threaded rod to seal the filter tank.

The advantages of the utility model are:

1. The present invention solves the problem in the prior art that after the equipment has been running for a period of time, a layer of intercepted substances will gradually accumulate on the surface of the sand layer, resulting in reduced filtration efficiency. At this time, the filter sand needs to be backwashed. The device lacks the necessary flushing device and needs to use other tools to inject clean water into the drain outlet to flush the filter sand, which increases the work process and also causes a certain waste of water resources.

2. The invention solves the problem that impurities are easily accumulated on the inner wall of the tank after long-term use, and the device lacks a cleaning device for the inner wall of the tank, which affects the filtering effect and is not conducive to later use.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the internal three-dimensional structure of a sand filter tank for sewage treatment provided by the utility model;

FIG2 is a schematic diagram of a front view of a three-dimensional structure of a sand filter tank for sewage treatment provided by the utility model;

FIG3 is a schematic side view of a three-dimensional structure of a sand filter tank for sewage treatment provided by the utility model;

FIG4 is a bottom-up perspective structural diagram of a sand filter tank for sewage treatment provided by the utility model;

Reference numerals:

1. Filter tank; 2. Bottom plate; 3. Column; 4. First connecting pipe; 5. First discharge pipe; 6. Rotary switch; 7. Motor; 8. Hydraulic press; 9. Feed pipe; 10. Second discharge pipe; 11. Second connecting pipe; 12. Two-way valve; 13. Hydraulic rod; 14. Scraper; 15. First filter plate; 16. Rotating shaft; 17. Second filter plate; 18. Stirring blade; 19. Support frame; 20. Sand inlet; 21. Cover plate.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

Please refer to Figures 1-4, the utility model provides

A sand filter tank for sewage treatment, comprising: a plurality of filter tanks 1 and a plurality of first connecting pipes 4, wherein the plurality of first connecting pipes 4 are fixedly mounted on the bottom of the outer surface of the filter tank 1, a first discharge pipe 5 is fixedly mounted on the outer surface of the plurality of first connecting pipes 4 away from the filter tank 1, a rotary switch 6 is movably embedded on the outer surface of the first discharge pipe 5 away from the first connecting pipe 4, a second connecting pipe 11 is fixedly mounted on the outer surface of the plurality of filter tanks 1 away from the first connecting pipe 4, a feed pipe 9 is fixedly mounted on the outer surface of the plurality of second connecting pipes 11 away from the filter tank 1, and a plurality of second connecting pipes 11 are fixedly mounted on the outer surface of the plurality of second connecting pipes 11 away from the filter tank 1. A second discharge pipe 10 is fixedly installed on the outer surface of the tube 11 near the middle, a two-way valve 12 is movably embedded on one side of the outer surface of the multiple second connecting pipes 11, a second filter plate 17 is fixedly installed on the inner surface of the multiple filter tanks 1 near the bottom, a first filter plate 15 is fixedly installed on the inner surface of the multiple filter tanks 1 near the middle, a motor 7 is fixedly installed on the outer surface of the multiple filter tanks 1 away from the first connecting pipe 4, a support frame 19 is fixedly installed on the inner surface of the multiple filter tanks 1 away from the motor 7, and a rotating shaft 16 is movably embedded on the top of the inner surface of the multiple filter tanks 1.

Please refer to Figures 1-4. Multiple rotating shafts 16 all penetrate the first filter plate 15 and the second filter plate 17 and are movably embedded in the top of the outer surface of the support frame 19. The output shafts of multiple motors 7 all penetrate the filter tank 1 and are fixedly installed on the top of the outer surface of the rotating shaft 16. The support frame 19 supports the rotating shaft 16 and allows the rotating shaft 16 to rotate. When the motor 7 is started, the motor 7 rotates and drives the rotating shaft 16 to rotate.

Please refer to Figures 1-4. The outer surfaces of multiple rotating shafts 16 near the bottom are fixedly installed with stirring blades 18, and the outer surfaces of multiple filter tanks 1 away from the first connecting pipe 4 are fixedly installed with hydraulic presses 8. The rotation of the rotating shafts 16 drives the stirring blades 18 to rotate, stirs the filtered sand in the tank body to prevent the filtered sand from sticking, and controls the extension and retraction of the hydraulic rod 13 through the hydraulic press 8.

Please refer to Figures 1-4. A hydraulic rod 13 is fixedly installed on the top of the inner surface of multiple filter tanks 1. Multiple hydraulic presses 8 penetrate the filter tanks 1 and are fixedly installed on the top of the outer surface of the hydraulic rod 13. The hydraulic rod 13 is fixedly connected to the scraper 14. The hydraulic press 8 controls the extension and retraction of the hydraulic rod 13 to drive the scraper 14 to move.

Please refer to Figures 1-4. The outer surfaces of the multiple hydraulic rods 13 away from the hydraulic press 8 are fixedly installed with scrapers 14. The multiple scrapers 14 are movably embedded in the inner surface of the filter tank 1 near the top, and the scrapers 14 clean the inner wall of the tank.

Please refer to Figures 1-4. The outer surfaces of multiple filter tanks 1 away from the motor 7 are fixedly installed with columns 3, and the outer surfaces of multiple columns 3 away from the filter tanks 1 are fixedly installed with base plates 2. The columns 3 support the filter tanks 1, and the base plate 2 supports the entire device and connects the entire device as a whole.

Please refer to Figures 1-4. A sand inlet 20 is fixedly installed on one side of the outer surface of the multiple filter tanks 1. A cover plate 21 is threadedly sleeved on the outer surface of the multiple sand inlet 20 away from the filter tank 1. Sand is added into the filter tank 1 through the sand inlet 20, and the filter sand in the filter tank 1 can be replaced. A threaded rod is movably embedded on the outer surface of the cover plate 21. The cover plate 21 and the sand inlet 20 are connected by the threaded rod to seal the filter tank 1.

How it works

When in use, the threaded rod on the outer surface of the cover plate 21 is rotated to disengage the cover plate 21 and the sand inlet 20, and the filter sand is put into the interior of the filter tank 1 through the sand inlet 20. After the filter sand is put in, the feed pipe 9 is connected to the sewage to be purified. The bottom of the feed pipe 9 is connected with a second connecting pipe 11, and the second connecting pipe 11 is fixedly connected to the filter tank 1. The sewage enters the filter tank 1 through the second connecting pipe 11, and the filter sand in the filter tank 1 filters the sewage. The bottom of the filter tank 1 is fixedly installed with a first connecting pipe 4, and the first connecting pipe 4 is connected to the first discharge pipe 5. The filtered sewage is discharged from the filter tank 1 through the first discharge pipe 5. After the equipment has been used for a period of time Start the motor 7, which is fixedly connected to the rotating shaft 16. A stirring blade 18 is fixedly installed on the outer surface of the rotating shaft 16. The rotation of the motor 7 drives the rotating shaft 16 and the stirring blade 18 to rotate and stir the filter sand to prevent the filter sand from sticking and affecting the filtering effect. When the filter sand needs to be cleaned, the rotary switch 6 is turned to close the first discharge pipe 5. A two-way valve 12 is installed on the outer surface of the second connecting pipe 11. The two-way valve 12 on the right is turned to make the two-way valve 12 seal the second connecting pipe 11 on the right to block the sewage from entering the interior of the right filter tank 1. At this time, the sewage in the feed pipe 9 can only flow into the left filter tank 1 through the second connecting pipe 11 on the left. The discharge pipe 5 is in a closed state. After the sewage is filtered through the filter sand in the left filter tank 1, it enters the filter tank 1 on the right through the first connecting pipe 4 and the first discharge pipe 5, and the filter sand in the filter tank 1 on the right is washed, and finally discharged from the second discharge pipe 10. After the filter sand in the filter tank 1 on the right is washed, the two-way valve 12 on the right is turned to connect the second connecting pipe 11 on the right with the feed pipe 9, and the two-way valve 12 on the left is turned to wash the filter sand in the filter tank 1 on the left in the same way. A hydraulic press 8 is fixedly installed on the top of the filter tank 1, and the hydraulic press 8 is fixedly connected to the hydraulic rod 13. A scraper 14 is fixedly installed at the bottom of the hydraulic rod 13 to start The hydraulic press 8 drives the hydraulic rod 13 to extend and retract, so that the scraper 14 moves downward to clean the inner wall of the tank, which solves the problem in the prior art that after the equipment has been running for a period of time, a layer of intercepted materials will gradually accumulate on the surface of the sand layer, resulting in reduced filtration efficiency. At this time, the filtered sand needs to be reversely flushed. The device lacks the necessary flushing device, and other tools are needed to inject clean water into the drain port to flush the filtered sand, which increases the work process and causes a certain amount of waste of water resources. At the same time, after long-term use, impurities are easily accumulated on the inner wall of the tank. The device lacks a cleaning device for the inner wall of the tank, which affects the filtration effect and is not conducive to later use.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. A sand filtration tank for sewage treatment, comprising: a plurality of filtration jar (1) and a plurality of first connecting pipe (4), a plurality of first connecting pipe (4) are all fixed mounting in the bottom of filtration jar (1) surface, its characterized in that: a plurality of surface fixed mounting that filtration jar (1) one side was kept away from to first connecting pipe (4) has first discharging pipe (5), the surface activity that first connecting pipe (4) one side was kept away from to first discharging pipe (5) is inlayed and is equipped with rotary switch (6), a plurality of the surface that filtration jar (1) was kept away from first connecting pipe (4) one side is equal fixed mounting has second connecting pipe (11), a plurality of surface fixed mounting that filtration jar (1) one side was kept away from to second connecting pipe (11) has inlet pipe (9), a plurality of surface fixed mounting that second connecting pipe (11) is close to the middle part has second discharging pipe (10), a plurality of one side of second connecting pipe (11) surface is all movably inlayed and is equipped with bi-directional valve (12), a plurality of the internal surface equal fixed mounting that filtration jar (1) is close to the bottom has second filter (17), a plurality of the internal surface equal fixed mounting that filtration jar (1) is close to the middle part has first filter (15), a plurality of the surface equal fixed mounting that filtration jar (1) was kept away from first connecting pipe (4) one side has motor (7), a plurality of surface equal fixed mounting that filtration jar (1) is kept away from filtration jar (1) has top (16).

2. A sand filtration tank for sewage treatment according to claim 1, wherein: the rotary shafts (16) penetrate through the first filter plates (15) and the second filter plates (17) and are movably embedded in the top of the outer surface of the supporting frame (19), and the output shafts of the motors (7) penetrate through the filter tank (1) and are fixedly mounted on the top of the outer surface of the rotary shaft (16).

3. A sand filtration tank for sewage treatment according to claim 2, wherein: the outer surfaces of the rotating shafts (16) close to the bottoms are fixedly provided with stirring blades (18), and the outer surfaces of the sides of the filter tanks (1) far away from the first connecting pipes (4) are fixedly provided with hydraulic presses (8).

4. A sand filtration tank for sewage treatment according to claim 3, wherein: the top of a plurality of filtering tank (1) internal surface is all fixed mounting has hydraulic stem (13), and a plurality of hydraulic press (8) are all run through filtering tank (1) fixed mounting at the top of hydraulic stem (13) surface.

5. A sand filtration tank for sewage treatment according to claim 4, wherein: the outer surfaces of a plurality of hydraulic rods (13) far away from one side of the hydraulic press (8) are fixedly provided with scraping plates (14), and the inner surfaces, close to the top, of the filtering tank (1) are movably embedded with the scraping plates (14).

6. The sand filtration tank for sewage treatment according to claim 5, wherein: a plurality of filter tanks (1) are fixedly provided with upright posts (3) on the outer surface of one side far away from a motor (7), and a plurality of upright posts (3) are fixedly provided with a bottom plate (2) on the outer surface of one side far away from the filter tanks (1).

7. The sand filtration tank for sewage treatment according to claim 6, wherein: one side of the outer surfaces of the filtering tanks (1) is fixedly provided with sand inlets (20), and the outer surfaces of one sides of the sand inlets (20) far away from the filtering tanks (1) are sleeved with cover plates (21) through threads.