CN215692009U

CN215692009U - Sewage pretreatment tank

Info

Publication number: CN215692009U
Application number: CN202122113602.6U
Authority: CN
Inventors: 付子骁; 杨松; 弋才刚; 黄孝红
Original assignee: Nanchong Water Investment Group Co ltd
Current assignee: Nanchong Water Investment Group Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-01
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to the field of sewage treatment, in particular to a sewage pretreatment tank. The specific technical scheme is as follows: the device comprises a pretreatment tank, wherein the pretreatment tank is provided with a water inlet, and a filtering device is arranged below the water inlet; the filter device comprises filter screens, and the filter screens comprise a first filter screen and a second filter screen; one end of the first filter screen is hinged to the wall of the pretreatment tank, and the other end of the first filter screen is positioned above the second filter screen and is in sliding connection with the second filter screen; one end of the second filter screen, which is far away from the water inlet, is provided with a collecting box, one side of the collecting box is connected with the wall of the pretreatment tank through a vertical chute and is provided with a power device for driving the collecting box to move along the chute. Compared with the prior art, the sewage pretreatment tank has a simple structure, works stably and can effectively deal with different sewage flows.

Description

Sewage pretreatment tank

Technical Field

The utility model relates to the field of sewage treatment, in particular to a sewage pretreatment tank.

Background

Sewage is an important component in environmental pollution, and under the background that the country continuously advocates green environmental protection, sewage treatment is more and more emphasized. The sewage needs to be pretreated before being subjected to microbial purification treatment, and the main purpose is to remove impurities and sediment, so that the sewage contains a great amount of impurities and can be damaged if the sewage directly flows into sewage treatment equipment.

Generally, a sewage treatment plant for sewage pretreatment generally removes floaters by using a filter grid, then naturally deposits sewage to enable silt to sink to the bottom of a pool, then discharges water at the upper part of the pool, and finally cleans the silt at the bottom of the pool to carry out pretreatment.

Disclosure of Invention

The utility model aims to provide a sewage pretreatment tank to solve the problems.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the device comprises a pretreatment tank, wherein the pretreatment tank is provided with a water inlet, and a filtering device is arranged below the water inlet; the filter device comprises filter screens, and the filter screens comprise a first filter screen and a second filter screen; one end of the first filter screen is hinged to the wall of the pretreatment tank, and the other end of the first filter screen is positioned above the second filter screen and is in sliding connection with the second filter screen; one end of the second filter screen, which is far away from the water inlet, is provided with a collecting box, one side of the collecting box is connected with the wall of the pretreatment tank through a vertical chute and is provided with a power device for driving the collecting box to move along the chute.

Preferably, a U-shaped groove is formed in the wall of the pretreatment tank; two sides of the U-shaped groove are provided with first vertical sliding grooves, and the bottom of the U-shaped groove is provided with a cavity; a sliding baffle is arranged at the U-shaped groove, two sides of the sliding baffle are connected with the first vertical sliding groove in a sliding mode, and the lower end of the sliding baffle is matched with a cavity at the bottom of the U-shaped groove; one side of the collecting box is connected with the sliding baffle.

Preferably, the pretreatment tank is provided with U-shaped grooves on two sides of the collection box.

Preferably, a first opening is formed in the position, corresponding to the collecting box, of the sliding baffle, a connecting rod with a first horizontal sliding chute is arranged between the sliding baffles on the two sides of the collecting box, and the collecting box is in sliding connection with the connecting rod through the first horizontal sliding chute; one end of the connecting rod passes through the first opening.

Preferably, a second opening is formed in the lower portion of the collecting box, and a switch door is arranged at the second opening.

Preferably, a second vertical chute is arranged on the tank wall of one side of the pretreatment tank opposite to the water inlet, and a first sliding block is arranged on the second vertical chute; a second horizontal sliding groove is formed in the bottom of the pretreatment tank, and a second sliding block is arranged on the second horizontal sliding groove; the pretreatment tank is also internally provided with a backing plate which is abutted against the tank wall, and the backing plate is hinged with the first sliding block and the second sliding block.

Preferably, the backing plate is provided with a baffle perpendicular to the backing plate and having the same length direction as the connecting rod.

Preferably, the backing plate is provided with a through groove matched with the baffle, the baffle is connected with the through groove in a sliding mode, and the lower side of the backing plate is provided with a power mechanism which drives the baffle to move along the through groove.

Preferably, the baffle is a hollow frame structure and is provided with a filter screen.

Preferably, a sand discharge port is arranged below the water inlet, and a water outlet is arranged on the opposite side of the water inlet.

The beneficial technical effects of the utility model are as follows: one end of the first filter screen is hinged to the wall of the pretreatment tank, one side of the collection tank is connected with the wall of the pretreatment tank through a vertical chute and is provided with a power device for driving the collection tank to move along the chute, and the inclination angle of the filter screen can be adjusted to ensure that impurities filtered out of the filter screen can be washed downwards by sewage flowing out of a water inlet, so that the influence on the filtering efficiency caused by the blockage caused by the accumulation of the impurities due to the over-small sewage flow is prevented; meanwhile, the collecting box capable of moving along the connecting rod is matched with the filter screen after the inclination is adjusted, so that the pretreatment tank can clean impurities in the collecting box under the condition of uninterrupted water inflow.

Therefore, compared with the prior art, the sewage pretreatment tank has the advantages of simple structure, stable work and capability of effectively dealing with different sewage flows.

Drawings

FIG. 1 is an overall block diagram of an embodiment of the present invention;

FIG. 2 is a plan sectional view of an embodiment of the present invention;

fig. 3 is a perspective view of a baffle according to an embodiment of the present invention.

In the figure: pretreatment tank 1, first vertical chute 11, slide baffle 12, connecting rod 13, water inlet 2, filter screen 3, first filter screen 31, second filter screen 32, collecting box 33, switch door 34, first opening 35, second vertical chute 41, first slider 42, second horizontal chute 43, second slider 44, backing plate 5, baffle 51, filter screen 52, sediment outlet 6, delivery port 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description of the present invention only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, fig. 2 is a sectional view of the interior of the device, taken from the middle. The device comprises a pretreatment tank 1, wherein a filtering device is arranged in the pretreatment tank 1; the embodiment comprises a pretreatment tank 1, wherein the pretreatment tank 1 is provided with a water inlet 2, and a filtering device is arranged below the water inlet 2; the filtering device comprises a filter screen 3, and the filter screen 31 comprises a first filter screen 31 and a second filter screen 32; one end of the first filter screen 31 is hinged on the wall of the pretreatment tank 1, and the other end is positioned above the second filter screen 32 and is connected with the second filter screen in a sliding way; one end of the second filter screen 32, which is far away from the water inlet 2, is provided with a collecting box 33, one side of the collecting box 33 is connected with the wall of the pretreatment tank 1 through a vertical chute and is provided with a power device for driving the tank to move along the chute.

The filter net 3, which is composed of the first filter net 31 and the second filter net 32, can adjust the length of the filter net 33 when the collecting box 33 moves up and down to adjust the angle of the filter net 33. One end of the first filter screen is hinged to the wall of the pretreatment tank, one side of the collection tank is connected with the wall of the pretreatment tank through a vertical chute and is provided with a power device for driving the collection tank to move along the chute, the inclination angle of the filter screen can be adjusted to ensure that impurities filtered out of the filter screen can be washed downwards by sewage flowing out of a water inlet, when the flow of the sewage is small, the height of the collection tank 33 is reduced, the inclination of the filter screen 3 is increased to ensure that the impurities can enter the collection tank 33 more easily, and the impurities are prevented from being accumulated on the filter screen 3 to cause blockage; when the sewage flow is great, impurity is difficult for piling up, through rising 33 height of collecting box, makes the 3 gradients of filter screen reduce, can fully filter sewage, increases filtration efficiency.

The wall of the pretreatment tank 1 is provided with a U-shaped groove; two sides of the U-shaped groove are provided with first vertical sliding chutes 11, and the bottom of the U-shaped groove is provided with a cavity; a sliding baffle 12 is arranged at the U-shaped groove, two sides of the sliding baffle 12 are connected with a first vertical chute 11 in a sliding manner, and the lower end of the sliding baffle is matched with a cavity at the bottom of the U-shaped groove; the collection tank 33 is connected to the slide shutter 12 on one side. The pretreatment tank 1 is provided with U-shaped grooves on both sides of the collection box 33, so that the collection box 33 can move up and down more stably. A first opening 35 is arranged on the sliding baffle 12 corresponding to the position of the collecting box 33, a connecting rod 13 with a first horizontal chute is arranged between the sliding baffles 12 on two sides of the collecting box 33, and the collecting box 33 is connected with the connecting rod 13 in a sliding way through the first horizontal chute; one end of the link 13 passes through the first opening 35.

The second filter screen 32 is hinged with the connecting rod 13, and the collecting box 33 is connected with the connecting rod 13 in a sliding way through a first horizontal sliding chute, so that the collecting box can move out of the pretreatment tank 1 along the connecting rod 13 through a first opening to clean impurities in the collecting box 33. Two sides of the sliding baffle plate 12 are slidably connected with the first vertical sliding chute 11, and the lower end of the sliding baffle plate is matched with the cavity at the bottom of the U-shaped groove, so that when the sliding baffle plate 12 moves up and down, the lower end of the sliding baffle plate can enter or extend out of the cavity at the bottom of the U-shaped groove, and the leakage caused by the higher water level in the pretreatment tank 1 is prevented. A second opening is arranged below the collecting box 33, and an opening and closing door 34 is arranged at the second opening. Furthermore, a power device can be respectively arranged to drive the opening and closing door 34 to open and close and the collection box 33 to move on the connecting rod 13; further, a pressure sensor may be provided at the bottom of the collection tank 33, and when the interior of the collection tank 33 is contaminated, the pressure sensor controls the sliding shutter 12 to move upward by the driving means so that the filter net 3 is leveled, and the collection tank 33 moves out of the pretreatment tank 1 and opens the opening and closing door 34 to discharge the contaminants. In the cleaning process of the collecting box 33, the filter screen 3 is horizontally arranged, so that impurities in the sewage are difficult to reach the other end of the filter screen 3 and enter the pretreatment tank 1.

A second vertical chute 41 is arranged on the tank wall of one side of the pretreatment tank 1 opposite to the water inlet 2, and a first sliding block 42 is arranged on the second vertical chute 41; the bottom of the pretreatment tank 1 is provided with a second horizontal chute 43, and a second sliding block 44 is arranged on the second horizontal chute 43; the pretreatment tank 1 is also internally provided with a backing plate 5 which is abutted against the tank wall, and the backing plate 5 is hinged with a first slide block 42 and a second slide block 44. The base plate 5 hinged with the first sliding block 42 and the second sliding block 44 can adjust the inclination angle, when the flow of sewage changes, the included angle of the base plate 5 relative to the pool bottom of the pretreatment pool 1 can be adjusted through the first sliding block 42, so that the gradient of the base plate 5 can be adjusted according to the flow of sewage, and the sediment at the pool bottom is prevented from being impacted by backflow to cause secondary turbidity. Preferably, the movable range of the included angle of the backing plate 5 relative to the bottom of the pretreatment tank 1 is 30-60 degrees.

The backing plate 5 is provided with a baffle 51 which is perpendicular to the backing plate 5 and has the same length direction as the connecting rod 13. The base plate 5 is provided with a through groove matched with the baffle 51, the baffle 51 is connected with the through groove in a sliding mode, the lower side of the base plate 5 is provided with a power mechanism, and the power mechanism drives the baffle 51 to move along the through groove penetrating direction. The baffle 51 is a hollow frame structure and is provided with a screen 52. The baffle 51 can effectively increase the filtration efficiency and reduce the occurrence of secondary turbidity of sediment; the filter screen 52 is arranged to reduce the influence of the baffle 51 on the water flow and carry out secondary filtration on impurities; it will be appreciated that a plurality of baffles 51 may be provided to achieve a greater effect. Meanwhile, the telescopic baffle 51 can be contracted when the sediment at the bottom of the tank is cleaned, so that the base plate and the sediment at the bottom of the tank are conveniently cleaned. A sand discharge port 6 is arranged below the water inlet 2, and a water outlet 7 is arranged at the opposite side of the water inlet 2. Furthermore, a baffle plate capable of adjusting the height can be arranged at the water outlet 7 to increase the height of the water outlet 7; the bottom of the pretreatment tank 1 is slightly inclined towards the sand discharge port 6, so that sediments are convenient to clean.

Claims

1. A sewage pretreatment tank is characterized in that: the device comprises a pretreatment tank (1), wherein the pretreatment tank (1) is provided with a water inlet (2), and a filtering device is arranged below the water inlet (2); the filter device comprises a filter screen (3), and the filter screen (31) comprises a first filter screen (31) and a second filter screen (32); one end of the first filter screen (31) is hinged on the wall of the pretreatment tank (1), and the other end of the first filter screen is positioned above the second filter screen (32) and is in sliding connection with the second filter screen; one end of the second filter screen (32) far away from the water inlet (2) is provided with a collecting box (33), one side of the collecting box (33) is connected with the wall of the pretreatment tank (1) through a vertical chute and is provided with a power device for driving the collecting box to move along the chute.

2. The sewage pretreatment tank of claim 1, wherein: a U-shaped groove is formed in the wall of the pretreatment tank (1); two sides of the U-shaped groove are provided with first vertical sliding grooves (11), and the bottom of the U-shaped groove is provided with a cavity; a sliding baffle (12) is arranged at the U-shaped groove, two sides of the sliding baffle (12) are connected with the first vertical sliding groove (11) in a sliding mode, and the lower end of the sliding baffle is matched with a cavity at the bottom of the U-shaped groove; one side of the collecting box (33) is connected with the sliding baffle (12).

3. The sewage pretreatment tank of claim 2, wherein: the pretreatment tank (1) is provided with U-shaped grooves on two sides of the collection box (33).

4. The sewage pretreatment tank of claim 1, wherein: a first opening (35) is formed in the position, corresponding to the collecting box (33), of each sliding baffle (12), a connecting rod (13) with a first horizontal sliding groove is arranged between the sliding baffles (12) on the two sides of the collecting box (33), and the collecting box (33) is in sliding connection with the connecting rod (13) through the first horizontal sliding groove; one end of the connecting rod (13) passes through the first opening (35).

5. The sewage pretreatment tank of claim 4, wherein: a second opening is formed in the lower portion of the collecting box (33), and a switch door (34) is arranged at the second opening.

6. The sewage pretreatment tank of claim 1, wherein: a second vertical chute (41) is arranged on the tank wall of one side of the pretreatment tank (1) opposite to the water inlet (2), and a first sliding block (42) is arranged on the second vertical chute (41); a second horizontal sliding groove (43) is formed in the bottom of the pretreatment tank (1), and a second sliding block (44) is arranged on the second horizontal sliding groove (43); still be provided with backing plate (5) with the pool wall butt in the preliminary treatment pond (1), backing plate (5) are articulated with first slider (42), second slider (44).

7. The sewage pretreatment tank of claim 6, wherein: the backing plate (5) is provided with a baffle (51) which is perpendicular to the backing plate (5) and has the same length direction as the connecting rod (13).

8. The sewage pretreatment tank of claim 7, wherein: the novel base plate is characterized in that a through groove matched with the baffle (51) is formed in the base plate (5), the baffle (51) is connected with the through groove in a sliding mode, a power mechanism is arranged on the lower side of the base plate (5), and the power mechanism drives the baffle (51) to move along the through groove penetrating direction.

9. The sewage pretreatment tank of claim 8, wherein: the baffle (51) is of a hollow frame structure and is provided with a filter screen (52).

10. The sewage pretreatment tank of claim 1, wherein: a sand discharge port (6) is arranged below the water inlet (2), and a water outlet (7) is arranged on the opposite side of the water inlet (2).