CN214971995U

CN214971995U - Shallow sand filter that backwash efficiency is high

Info

Publication number: CN214971995U
Application number: CN202120371361.2U
Authority: CN
Inventors: 张思兰; 王红雨; 许延义
Original assignee: Jinan Water Treatment Equipment Co ltd
Current assignee: Jinan Water Treatment Equipment Co ltd
Priority date: 2021-02-16
Filing date: 2021-02-16
Publication date: 2021-12-03
Anticipated expiration: 2031-02-16

Abstract

The utility model belongs to the technical field of shallow sand filter, especially, be a shallow sand filter that backwash efficiency is high, when carrying out the backwash to current shallow sand filter, the backwash effect is relatively poor, and backwash efficiency is lower, can't satisfy the problem of water quality treatment's demand, now proposes following scheme, and it is including filtering the jar, the fixed intercommunication in top of filtering the jar has the inlet tube, the fixed intercommunication in one side of inlet tube has first drain pipe, the bottom mounting intercommunication of inlet tube has the water-locator, one side fixed mounting who filters the jar has the safety cover, fixed mounting has the motor on one side inner wall of safety cover. The utility model has the advantages of reasonable design, through the cooperation of first puddler, second puddler and third puddler, can fully stir quartz sand and active carbon, improve the efficiency of backwash, through the rotation of clearance brush, can effectively avoid the filter plate to be blockked up by impurity to the efficiency of backwash has further been improved.

Description

Shallow sand filter that backwash efficiency is high

Technical Field

The utility model relates to a shallow sand filter technical field especially relates to an efficient shallow sand filter of backwash.

Background

The shallow sand filter is a full-automatic shallow sand filter, and the system is formed from several standard high-speed sand cylinder units, and its interior is equipped with unique water-distributing device and water-collecting device, and possesses unique bidirectional automatic flushing valve, and can implement several standard high-speed sand cylinders in the normal system operation and make them implement one-by-one individual back-flushing one by one.

However, when the existing shallow sand filter is used for backwashing, the backwashing effect is poor, the backwashing efficiency is low, and the requirement of water quality treatment cannot be met, so that the shallow sand filter with high backwashing efficiency is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving current shallow sand filter when carrying out the backwash, the backwash effect is relatively poor, and backwash efficiency is lower, can't satisfy the shortcoming of water quality treatment's demand, and the shallow sand filter that the backwash efficiency is high that provides.

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

a shallow sand filter with high backwashing efficiency comprises a filter tank, wherein the top of the filter tank is fixedly communicated with a water inlet pipe, one side of the water inlet pipe is fixedly communicated with a first drainage pipe, the bottom of the water inlet pipe is fixedly communicated with a water distributor, one side of the filter tank is fixedly provided with a protective cover, the inner wall of one side of the protective cover is fixedly provided with a motor, an output shaft of the motor is fixedly provided with a first gear, the inner walls of two sides of the filter tank are rotatably provided with two stirring shafts, one end of each stirring shaft is fixedly provided with a second gear, the first gear is meshed with the two second gears, the inner wall of the filter tank is fixedly provided with a filter plate, one side of each stirring shaft, which is close to each other, is fixedly provided with one end of a plurality of first stirring rods, the other end of each stirring shaft is fixedly provided with a cleaning brush, one side of each stirring shaft, which is far away from each other, is fixedly provided with one end of a plurality of second stirring rods, the other end fixed mounting that is located a plurality of second puddlers on same horizontal plane has same third puddler, and a plurality of cleaning brushes move about respectively the butt in the top and the bottom of filter plate, fixed mounting has the baffle on the inner wall of filter tank, and the fixed intercommunication in top of baffle has a plurality of water catchers, be provided with quartz sand and active carbon in the filter tank, the filter plate is located between quartz sand and the active carbon.

Preferably, the other side of filtering the jar is fixed the intercommunication and has first inlet pipe and first discharging pipe, and the other side of filtering the jar is fixed the intercommunication and has second inlet pipe and second discharging pipe, conveniently changes quartz sand and active carbon.

Preferably, the bottom fixed mounting who crosses the jar has the guide plate, crosses the fixed intercommunication in opposite side bottom of jar and has the second drain pipe, all is provided with the control valve on first drain pipe, second drain pipe, inlet tube, first inlet pipe, second inlet pipe, first discharging pipe and the second discharging pipe, conveniently controls first drain pipe, second drain pipe, inlet tube, first inlet pipe, second inlet pipe, first discharging pipe and second discharging pipe.

Preferably, a mounting opening is formed in one side of the protective cover, and a dustproof net is fixedly mounted in the mounting opening, so that the motor can be conveniently prevented from dust and dissipated.

Preferably, a plurality of round holes have all been seted up to the front side of first puddler, second puddler and third puddler, conveniently reduce the resistance of quartz sand and active carbon to first puddler, second puddler and third puddler.

Preferably, a plurality of outlets are formed in the top of the partition plate and are respectively communicated with the corresponding water collectors, so that the water collectors are conveniently communicated with the top of the partition plate, and purified water falls down conveniently.

In the utility model, when filtering, the control valve on the water inlet pipe and the control valve on the second drain pipe are opened, the control valve on the first drain pipe is closed, sewage flows to the water distributor from the water inlet pipe and then is sprayed out, quartz sand is used for primarily filtering the sewage, activated carbon is used for filtering the sewage again, and finally purified water passes through the water collector and falls on the guide plate and flows out from the second drain pipe;

in the utility model, the shallow sand filter with high backwashing efficiency is characterized in that when backwashing is carried out, the control valve on the water inlet pipe is closed, the control valve on the first water discharge pipe is opened, purified water is pressurized by the water pump and is injected into the filter tank through the second water discharge pipe, so that backwashing is carried out on quartz sand and active carbon, the motor is started simultaneously, the output shaft of the motor drives the rotation of the first gear, the first gear drives the rotation of the two second gears, the two second gears drive the rotation of the two stirring shafts, the two stirring shafts drive the rotation of the first stirring rod, the second stirring rod and the third stirring rod, so that the quartz sand and the active carbon can be stirred, the backwashing efficiency is improved, the resistance of the quartz sand and the active carbon to the first stirring rod, the second stirring rod and the third stirring rod can be reduced through the round hole, so that the stirring effect is better, the first stirring rod drives the cleaning brush to rotate, so that the filter plate can be cleaned, the filter plate is effectively prevented from being blocked by impurities, the backwashing efficiency is further improved, the wastewater after backwashing flows into the first water discharge pipe from the water distributor and then flows out, the quartz sand is conveniently replaced through the matching of the first feeding pipe and the first discharge pipe, and the activated carbon is conveniently replaced through the matching of the second feeding pipe and the second discharge pipe;

the utility model has the advantages of reasonable design, through the cooperation of first puddler, second puddler and third puddler, can fully stir quartz sand and active carbon, improve the efficiency of backwash, through the rotation of clearance brush, can effectively avoid the filter plate to be blockked up by impurity to the efficiency of backwash has further been improved.

Drawings

FIG. 1 is a schematic structural view of a shallow sand filter with high backwashing efficiency according to the present invention;

FIG. 2 is a schematic structural view of part A of a shallow sand filter with high backwashing efficiency according to the present invention;

fig. 3 is a schematic structural diagram of a part B of a shallow sand filter with high backwashing efficiency provided by the present invention.

In the figure: 1. a filter tank; 2. a water inlet pipe; 3. a first drain pipe; 4. a control valve; 5. a water distributor; 6. a first feed tube; 7. a first discharge pipe; 8. a second drain pipe; 9. a partition plate; 10. a water collector; 11. quartz sand; 12. a baffle; 13. a protective cover; 14. a dust screen; 15. an electric motor; 16. a first gear; 17. a second gear; 18. a stirring shaft; 19. a second stirring rod; 20. a third stirring rod; 21. a first stirring rod; 22. cleaning a brush; 23. filtering the plate; 24. activated carbon; 25. a circular hole; 26. a second feed tube; 27. a second discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a shallow sand filter with high backwashing efficiency comprises a filter tank 1, a water inlet pipe 2 is fixedly communicated with the top of the filter tank 1, a first drain pipe 3 is fixedly communicated with one side of the water inlet pipe 2, a water distributor 5 is fixedly communicated with the bottom end of the water inlet pipe 2, a protective cover 13 is fixedly installed on one side of the filter tank 1, a motor 15 is fixedly installed on the inner wall of one side of the protective cover 13, a first gear 16 is fixedly installed on the output shaft of the motor 15, two stirring shafts 18 are rotatably installed on the inner walls of the two sides of the filter tank 1, a second gear 17 is fixedly installed at one end of each of the two stirring shafts 18, the first gear 16 is meshed with the two second gears 17, a filter plate 23 is fixedly installed on the inner wall of the filter tank 1, one end of a plurality of first stirring rods 21 is fixedly installed at the side where the two stirring shafts 18 are close to each other, a cleaning brush 22 is fixedly installed at the other end of the plurality of the first stirring rods 21, the equal fixed mounting in one side that two (mixing) shafts 18 kept away from each other has the one end of a plurality of second puddlers 19, the other end fixed mounting of a plurality of second puddlers 19 that is located on the same horizontal plane has same third puddler 20, a plurality of cleaning brushes 22 are the movable butt respectively in the top and the bottom of filter plate 23, fixed mounting has baffle 9 on the inner wall of filter tank 1, the fixed intercommunication in top of baffle 9 has a plurality of water catchments 10, be provided with quartz sand 11 and active carbon 24 in the filter tank 1, filter plate 23 is located between quartz sand 11 and the active carbon 24.

The utility model discloses in, the fixed intercommunication of opposite side of filtering jar 1 has first inlet pipe 6 and first discharging pipe 7, and the fixed intercommunication of opposite side of filtering jar 1 has second inlet pipe 26 and second discharging pipe 27, and the convenience is changed quartz sand 11 and active carbon 24.

The utility model discloses in, the bottom fixed mounting who crosses jar 1 has guide plate 12, the fixed intercommunication in opposite side bottom of crossing jar 1 has second drain pipe 8, first drain pipe 3, second drain pipe 8, inlet tube 2, first inlet pipe 6, second inlet pipe 26, all be provided with control valve 4 on first discharging pipe 7 and the second discharging pipe 27, conveniently control first drain pipe 3, second drain pipe 8, inlet tube 2, first inlet pipe 6, second inlet pipe 26, first discharging pipe 7 and second discharging pipe 27.

The utility model discloses in, the installing port has been seted up to one side of safety cover 13, and fixed mounting has dust screen 14 in the installing port, and the convenience is dustproof the heat dissipation to motor 15.

The utility model discloses in, a plurality of round holes 25 have all been seted up to the front side of first puddler 21, second puddler 19 and third puddler 20, conveniently reduce quartz sand 11 and the resistance of active carbon 24 to first puddler 21, second puddler 19 and third puddler 20.

The utility model discloses in, a plurality of exports have been seted up at the top of baffle 9, and a plurality of exports are linked together with the water collector 10 that corresponds respectively, conveniently communicate water collector 10 at the top of baffle 9, and the convenient water that purifies falls.

In the utility model, when in use, when filtering, the control valve 4 on the water inlet pipe 2 and the second drain pipe 8 is opened, the control valve 4 on the first drain pipe 3 is closed, the sewage is sprayed out after flowing from the water inlet pipe 2 to the water distributor 5, the quartz sand 11 carries out preliminary filtration to the sewage, the activated carbon 24 carries out secondary filtration to the sewage, the finally purified water passes through the water collector 10 and falls on the guide plate 12, the sewage flows out from the second drain pipe 8, when backwashing, the control valve 4 on the water inlet pipe 2 is closed, the control valve 4 on the first drain pipe 3 is opened, the purified water is pressurized by the external water pump and is injected into the filter tank 1 through the second drain pipe 8, thereby backwashing is carried out to the quartz sand 11 and the activated carbon 24, the motor 15 is started simultaneously, the output shaft of the motor 15 drives the rotation of the first gear 16, the first gear 16 drives the rotation of the two second gears 17, the two second gears 17 drive the two stirring shafts 18 to rotate, the two stirring shafts 18 drive the first stirring rod 21, the second stirring rod 19 and the third stirring rod 20 to rotate, so that the quartz sand 11 and the active carbon 24 can be stirred, the backwashing efficiency is improved, the resistance of the quartz sand 11 and the active carbon 24 to the first stirring rod 21, the second stirring rod 19 and the third stirring rod 20 can be reduced through the round hole 25, the stirring effect is better, the first stirring rod 21 drives the cleaning brush 22 to rotate, so that the filter plate 23 can be cleaned, the filter plate 23 is effectively prevented from being blocked by impurities, the backwashing efficiency is further improved, the wastewater after backwashing flows into the first drainage pipe 3 from the water distributor 5 and flows out, the quartz sand 11 is convenient to replace through the matching of the first feeding pipe 6 and the first drainage pipe 7, and through the matching of the second feeding pipe 26 and the second drainage pipe 27, the replacement of the activated carbon 24 is facilitated, the dust can be prevented from entering the protective cover 13 through the dustproof net 14, and meanwhile, the heat of the motor 15 can be dissipated.

Claims

1. The shallow sand filter with high backwashing efficiency comprises a filter tank (1) and is characterized in that the top of the filter tank (1) is fixedly communicated with a water inlet pipe (2), one side of the water inlet pipe (2) is fixedly communicated with a first drainage pipe (3), the bottom of the water inlet pipe (2) is fixedly communicated with a water distributor (5), one side of the filter tank (1) is fixedly provided with a protective cover (13), the inner wall of one side of the protective cover (13) is fixedly provided with a motor (15), the output shaft of the motor (15) is fixedly provided with a first gear (16), the inner walls of the two sides of the filter tank (1) are rotatably provided with two stirring shafts (18), one ends of the two stirring shafts (18) are fixedly provided with second gears (17), the first gear (16) is meshed with the two second gears (17), the inner wall of the filter tank (1) is fixedly provided with a filter plate (23), one side of each of the two stirring shafts (18) close to each other is fixedly provided with one end of a plurality of first stirring rods (21), the other end of each of the plurality of first stirring rods (21) is fixedly provided with a cleaning brush (22), one side of each of the two stirring shafts (18) far away from each other is fixedly provided with one end of a plurality of second stirring rods (19), the other ends of the plurality of second stirring rods (19) on the same horizontal plane are fixedly provided with a same third stirring rod (20), and the plurality of cleaning brushes (22) are respectively movably abutted against the top and the bottom of the filter plate (23), a clapboard (9) is fixedly arranged on the inner wall of the filtering tank (1), the top of the clapboard (9) is fixedly communicated with a plurality of water collectors (10), the filter tank (1) is internally provided with quartz sand (11) and active carbon (24), the filter plate (23) is positioned between the quartz sand (11) and the activated carbon (24).

2. The shallow sand filter with high backwashing efficiency as claimed in claim 1, wherein the other side of the filter tank (1) is fixedly communicated with a first feeding pipe (6) and a first discharging pipe (7), and the other side of the filter tank (1) is fixedly communicated with a second feeding pipe (26) and a second discharging pipe (27).

3. The shallow sand filter with high backwashing efficiency according to claim 2, wherein a guide plate (12) is fixedly installed at the bottom of the filtering tank (1), a second drain pipe (8) is fixedly communicated with the bottom of the other side of the filtering tank (1), and control valves (4) are respectively arranged on the first drain pipe (3), the second drain pipe (8), the water inlet pipe (2), the first feeding pipe (6), the second feeding pipe (26), the first discharging pipe (7) and the second discharging pipe (27).

4. The shallow sand filter with high backwashing efficiency as claimed in claim 1, wherein a mounting opening is formed at one side of the protection cover (13), and a dust screen (14) is fixedly mounted in the mounting opening.

5. The shallow sand filter with high backwashing efficiency as claimed in claim 1, wherein a plurality of round holes (25) are formed in the front sides of the first stirring rod (21), the second stirring rod (19) and the third stirring rod (20).

6. The shallow sand filter with high backwashing efficiency as claimed in claim 1, wherein a plurality of outlets are formed at the top of the partition plate (9), and the outlets are respectively communicated with the corresponding water collectors (10).