Automatic backwashing filter

Abstract

The utility model discloses an automatic backwashing filter, which relates to the technical field of filters, and comprises a filter body, the side wall of the filter body is respectively provided with a water inlet and a water outlet, the bottom end of the filter body is fixedly provided with a drain outlet, and a filtering part is arranged in the filter body; a cleaning assembly is movably arranged in the sewage draining exit and comprises a connecting plate, a plurality of through holes are formed in the middle of the connecting plate, a plurality of torsion springs are arranged on the two sides of the connecting plate, and rod bodies are connected to the torsion springs. According to the utility model, the cleaning assembly is arranged in the sewage draining exit and can move on the sewage draining exit, and when a large amount of impurities are adhered to the inner wall of the sewage draining exit, the cleaning assembly can be extracted to bring the impurities on the opening wall out of the outer side of the sewage draining exit, so that the blockage phenomenon at the sewage draining exit is reduced; and the blowdown efficiency of the whole filter during backwashing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field especially relates to a kind of automatic backwash filter. BACKGROUND

[0002] Automatic backwash filter is widely used in metallurgy, chemical industry, petroleum, papermaking, pharmaceutical, food, mining, electric power, urban water supply field.Such as industrial wastewater, the filtration of circulating water, the regeneration of emulsion, waste oil filtration treatment, continuous casting water system of metallurgical industry, blast furnace water system, high-pressure water descaling system for hot rolling.

[0003] Through the retrieval, the authorized announcement No.CN202222231291.8 discloses an automatic backwash filter, including filter outer frame, the side of the filter outer frame is fixedly installed with first cover frame by screw, the side, away from the filter outer frame of the first cover frame is fixedly installed with first valve, the utility model discloses, when needing backwash after filtering use for a period of time, control closes first valve and fourth valve, opens second valve, third valve and rotates sealing cover to open blow-off pipe, water body is reversed into filter outer frame through inlet pipe, three-way pipe, second connecting pipe, first connecting pipe, second cover frame, is washed back from filter screen frame on the impurity of the side of filter screen frame close to first cover frame through the filter of filter screen frame, and impurity is discharged through blow-off pipe by separating filter screen frame, to realize the automatic backwash of filter screen frame, compared with traditional disassembly first cover frame, second cover frame and filter screen frame are manually cleaned, it is more convenient;

[0004] The deficiencies existing in prior art are that: with repeated multiple filtration and backwashing of water body, a large amount of impurities will block the blow-off port, which affects the overall blow-off efficiency and increases the probability of blockage. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the defects existing in prior art and provides an automatic backwash filter.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides an automatic backwash filter, including filter body, the side wall of filter body is provided with water inlet and water outlet respectively, the bottom end of filter body is fixedly installed with blowdown, the inside of filter body is provided with filter component, the inside of blowdown is movably provided with cleaning assembly, the middle part of connecting plate is provided with a plurality of through -hole, both sides of connecting plate all are provided with a plurality of torsion spring, a plurality of torsion spring is connected with the rod body, the rod body is contacted and moves along with in the inner wall of blowdown, and the rod body carries out angle adjustment with torsion spring as rotation point.

[0008] As a preferred technical scheme of the utility model, the side wall of the blowdown is fixedly connected with a gas cylinder, the output end of the gas cylinder is connected with the bottom end of the connecting plate through a push rod, and the connecting plate moves radially on the blowdown.

[0009] As a preferred technical scheme of the utility model, the bottom of the rod body is uniformly provided with a plurality of protrusions, and the protrusions are made of rubber.

[0010] As a preferred technical scheme of the utility model, the filter component includes a rotating rod, a reinforcing structure is arranged in the middle of the rotating rod, a filter screen is fixedly installed at the bottom of the rotating rod, and the inner side wall of the filter screen is connected with the reinforcing structure.

[0011] As a preferred technical scheme of the utility model, the reinforcing structure includes two fixed plates, the two fixed plates are arranged on both sides of the surface of the rotating rod, two connecting arms are fixedly installed between the two fixed plates, connecting arms are fixedly connected to the two sides of the fixed plate close to the bottom, and the bottom end of the two connecting arms is connected with the inner side wall of the filter screen.

[0012] As a preferred technical scheme of the utility model, the top of the filter body is fixedly connected with a motor, the output end of the motor penetrates the filter body and is fixedly connected with the top of the rotating rod.

[0013] Compared with the prior art, the utility model has the beneficial effects that the cleaning assembly is arranged in the blowdown, the cleaning assembly can move on the blowdown, when a large amount of impurities adhere to the inner wall of the blowdown, the cleaning assembly can be extracted to take the impurities on the inner wall of the blowdown to the outside of the blowdown, so as to reduce the blockage phenomenon of the blowdown and improve the blowdown efficiency of the overall filter during backwashing. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model.

[0015] Fig. 1The utility model discloses a whole structure schematic view.

[0016] Fig. 2 The utility model discloses a cleaning assembly movement schematic view.

[0017] Fig. 3 The utility model discloses a fixed block structure schematic view.

[0018] In the drawing: 1, filter body, 2, water inlet, 3, water outlet, 4, motor, 5, rotating rod, 6, filter screen, 7, air cylinder, 8, cleaning assembly, 9, blowdown, 10, torsion spring, 11, rod body, 12, connecting plate, 13, through -hole, 14, protruding, 15, fixed plate, 16, connecting arm one, 17, connecting arm two. Specific implementation

[0019] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiments.

[0020] Refer to Figs. 1-3 A kind of automatic backwash filter, including filter body 1, water inlet 2 and water outlet 3 are respectively arranged on the side wall of filter body 1, the bottom end of filter body 1 is fixedly installed with blowdown 9, and filter part is arranged in the inside of filter body 1;Blowdown 9 is movably arranged with cleaning assembly 8 in the inside, and cleaning assembly 8 includes connecting plate 12, a plurality of through holes 13 are arranged in the middle part of connecting plate 12, a plurality of torsion springs 10 are arranged on the both sides of connecting plate 12, rod body 11 is connected on a plurality of torsion springs 10, rod body 11 is contacted and moved with the inner wall of blowdown 9, and rod body 11 is adjusted in angle with torsion spring 10 as rotation point.

[0021] The side wall of blowdown 9 is fixedly connected with air cylinder 7, the output end of air cylinder 7 is connected with the bottom end of connecting plate 12 through push rod, connecting plate 12 moves radially on blowdown 9, and the cleaning assembly is arranged in the inside of blowdown 9, which can move on blowdown 9, when a large amount of impurities adhere to the inner wall of blowdown 9, the cleaning assembly can be extracted, so that the cleaning assembly carries out the impurities on the wall and exports to the outside of blowdown 9, to reduce the blockage phenomenon at blowdown 9, and improve the efficiency of blowdown when the overall filter body 1 is backwashed.

[0022] The bottom of rod body 11 is uniformly provided with a plurality of protrusions 14, and the plurality of protrusions 14 are made of rubber material, so that the impurities at blowdown 9 can be picked up, the impurities at blowdown 9 can be cleaned in the later period, and the smoothness of blowdown 9 is improved.

[0023] The filter part includes rotating rod 5, reinforcing structure is arranged in the middle part of rotating rod 5, filter screen 6 is fixedly installed at the bottom of rotating rod 5, and the inner side wall of filter screen 6 is connected with the reinforcing structure.

[0024] The reinforcing structure comprises two fixed plates 15 distributed on both sides of the surface of the rotating rod 5, two connecting arms 16 fixedly installed between the two fixed plates 15, two connecting arms 17 fixedly connected to the two sides of the fixed plate 15 close to the bottom, and the bottom ends of the two connecting arms 17 connected to the inner side wall of the filter screen 6, so that the connection between the filter screen 6 and the rotating rod 5 is more stable, and the firmness of the two is improved.

[0025] The top of the filter body 1 is fixedly connected with a motor 4, the output end of the motor 4 penetrates through the filter body 1 and is fixedly connected with the top of the rotating rod 5, by starting the motor 4, the filter screen 6 connected with the motor 4 is driven to rotate, so that the impurities in the filter holes are discharged to the blowdown port 9, and the overall filtering effect of the filter screen 6 is improved.

[0026] Working principle, the water body enters the filter body 1 from the water inlet 2, at this time the valve of the blowdown port 9 at the bottom is in a closed state, the water body is filtered by the filter screen 6 and discharged outside the water outlet 3, when backwashing, the valve of the water outlet 3 is closed, the valve of the blowdown port 9 is opened, and the motor 4 is opened, the motor 4 drives the rotating rod 5 and the filter screen 6 to rotate, at this time the water body backwashes and drives the impurities in the filter holes of the filter screen 6 to be discharged to the blowdown port 9. When the blowdown port 9 is blocked, the air cylinder 7 can be started to drive the connecting plate 12 to move downward, after the rod body 11 contacts the inside of the blowdown port 9, the torsion spring 10 is driven to rotate to make the rod body 11 pull and transport the impurities on the inner side wall of the blowdown port 9 to the outside of the blowdown port 9, and the smoothness of the inside of the blowdown port 9 is improved.

Claims

1. An automatic backwash filter comprising a filter body (1), characterized in that, The side wall of the filter body (1) is respectively provided with a water inlet (2) and a water outlet (3), the bottom end of the filter body (1) is fixedly provided with a blowdown port (9), and the inside of the filter body (1) is provided with a filtering component; the inside of the blowdown port (9) is movably provided with a cleaning assembly (8), the cleaning assembly (8) comprises a connecting plate (12), a plurality of through holes (13) are arranged in the middle of the connecting plate (12), a plurality of torsion springs (10) are arranged on the two sides of the connecting plate (12), a plurality of rod bodies (11) are connected on the torsion springs (10), the rod body (11) is in contact with and moves along the inner wall of the blowdown port (9), and the rod body (11) is angularly adjusted with the torsion spring (10) as the rotation point.

2. An automatic backwash filter according to claim 1, wherein The side wall of the blowdown port (9) is fixedly connected with a gas cylinder (7), the output end of the gas cylinder (7) is connected with the bottom end of the connecting plate (12) through a push rod, and the connecting plate (12) moves radially on the blowdown port (9).

3. An automatic backwash filter according to claim 1, wherein The bottom of the rod body (11) is uniformly provided with a plurality of protrusions (14), and the plurality of protrusions (14) are made of rubber.

4. An automatic backwash filter according to claim 1, wherein The filtering component comprises a rotating rod (5), a reinforcing structure is arranged in the middle of the rotating rod (5), and a filter screen (6) is fixedly arranged at the bottom of the rotating rod (5); and the inner side wall of the filter screen (6) is connected with the reinforcing structure.

5. An automatic backwash filter according to claim 4, wherein The reinforcing structure comprises two fixed plates (15), the two fixed plates (15) are arranged on the two sides of the surface of the rotating rod (5), two connecting arms (16) are fixedly arranged between the two fixed plates (15), connecting arms (17) are fixedly connected on the two sides of the fixed plate (15) close to the bottom, and the bottom end of the two connecting arms (17) is connected with the inner side wall of the filter screen (6).

6. An automatic backwash filter according to claim 4, wherein The top of the filter body (1) is fixedly connected with a motor (4), and the output end of the motor (4) penetrates through the filter body (1) and is fixedly connected with the top of the rotating rod (5).

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