CN215480355U

CN215480355U - Sewage filtering and purifying device

Info

Publication number: CN215480355U
Application number: CN202120775106.4U
Authority: CN
Inventors: 卓万有
Original assignee: Ganzhou Wanxin Environmental Protection Technology Co ltd
Current assignee: Ganzhou Wanxin Environmental Protection Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-01-11
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a sewage filtering and purifying device, belonging to the technical field of ships; including the sewage inlet pipe, the sewage inlet union coupling has the filtering ponds, the filtering ponds is equipped with the grit filter layer, grit filter layer lower part is equipped with the support filter plate, the filtering ponds has centrifugal pump one through the tube coupling, centrifugal pump one has flocculation tank through the tube coupling, the flocculation tank side is equipped with the flocculating agent inlet pipe, flocculation tank bottom inboard is equipped with filtering baffle, filtering baffle has flocculation district and water purification district with flocculation tank cut apart, there is centrifugal pump two water purification district bottom through the tube coupling, two exports of centrifugal pump are equipped with flow pipe one, flow pipe one is connected with receives the filtration tank, receive the inside filter membrane that is equipped with of filtration tank, it has centrifugal pump three to receive the tank bottom through the tube coupling, three exports of centrifugal pump are equipped with flow pipe two. The utility model adopts multiple filtering devices, filters the sewage step by step according to the particle size of pollutants in the sewage from large to small, and uses a sterilizing device to effectively kill bacteria while treating the sewage, thereby achieving the deep purification of the sewage.

Description

Sewage filtering and purifying device

Technical Field

The utility model provides a sewage filtering and purifying device, and belongs to the technical field of ships.

Background

Sewage is the effluent from life and production that is contaminated to some extent. The water which loses the original use function is called sewage for short. The sewage is caused by that new substances are mixed in the water or the water is deteriorated because of the change of external conditions, so that the original use function of the sewage cannot be maintained. Sewage is mainly divided into the following types: natural sewage, industrial sewage, agricultural sewage and domestic sewage. Industrial and domestic wastewater discharged in urban areas only in the world for one year is as much as 500 cubic kilometers, and each drop of wastewater pollutes water bodies by several times or even tens of times. Most of the existing sewage treatment devices have simple structures and poor treatment effects, and cannot realize deep sewage treatment and purification.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sewage filtering and purifying device, which adopts a multiple filtering device to filter the sewage step by step according to the particle size of pollutants in the sewage from large to small, and uses a sterilizing device to effectively kill bacteria while treating the sewage, thereby achieving the deep purification of the sewage.

The utility model provides a sewage filtering and purifying device, which is characterized in that: including the sewage inlet pipe, the sewage inlet union coupling has the filtering ponds, the inside grit filter layer that is equipped with of filtering ponds, grit filter layer lower part is equipped with the support filter plate, there is centrifugal pump one filtering ponds bottom through the tube coupling, centrifugal pump one has flocculation tank through the tube coupling, flocculation tank side is equipped with the flocculating agent inlet tube, flocculation tank bottom inboard is equipped with the filtration baffle, it has flocculation district and water purification district to filter the baffle to cut apart the flocculation tank, water purification district bottom has centrifugal pump two through the tube coupling, two exports of centrifugal pump are equipped with flow pipe one, flow pipe one is connected with receives the filtering tanks, receive the inside filter membrane that is equipped with of filtering tanks, it has centrifugal pump three to receive the tank bottoms through the tube coupling, three exports of centrifugal pump are equipped with flow pipe two.

The filtering ponds are open-top's cuboid structure, the filtering ponds top is transversely strideed across to the sewage inlet pipe, the sewage inlet pipe is located the filtering ponds both sides and has cup jointed fixed cover one and fixed cover two, fixed cover one and filtering ponds top fixed connection, two fixedly connected with A-frame of fixed cover, the A-frame other end and filtering ponds lateral wall face fixed connection, the sewage inlet pipe is located the filtering ponds top and is equipped with the sewage branch pipe, sewage branch pipe evenly distributed is in the filtering ponds top.

The utility model discloses a flocculation tank, including flocculation tank, motor cabinet, output shaft, flocculation tank top, motor cabinet, output shaft, flocculation tank top, output shaft, motor cabinet, output shaft, flocculation tank top, output shaft, the motor cabinet is equipped with the motor cabinet, motor cabinet upper portion is fixed with the motor, the motor is equipped with the output shaft, the output shaft inserts and extends to inside the flocculation tank from flocculation tank top, the output shaft is equipped with stirring vane.

And a drain pipe is arranged at the bottom of the flocculation area and is provided with a drain valve.

The first water supply pipe is inserted from the top of the nanofiltration tank and extends into the nanofiltration tank, and a buffer plate is arranged below the tail end of the first water supply pipe inside the nanofiltration tank.

And an ultraviolet lamp is arranged at the top of the inner side of the nanofiltration tank.

The sewage inlet pipe is provided with a sewage inlet valve, the first centrifugal pump is provided with a first outlet valve, the second centrifugal pump is provided with a second outlet valve, the third centrifugal pump is provided with a third outlet valve, and the flocculant inlet pipe is provided with a flocculant valve.

The sand filtration layer is provided with a coarse sand layer and a fine sand layer.

The principle of the utility model is as follows:

when in use, firstly, a sewage inlet valve is opened to introduce sewage, the sewage enters a filtering tank from a sewage branch pipe by a plurality of pipelines through a sewage inlet pipe, the sewage is ensured to be uniformly sprinkled on the surface of a sand filtering layer of a sewage tank, after the sewage is sequentially settled and filtered by a fine sand layer and a coarse sand layer, large-particle pollutants in the sewage stay on the surface and the inside of the sand filtering layer and then enter the bottom of the filtering tank after passing through a supporting filter plate, a first centrifugal pump is started, a first outlet valve is slowly opened, filtered water after primary filtration is conveyed to a flocculation tank along a pipeline by the first centrifugal pump, a flocculant valve is opened to introduce a flocculant into the flocculation tank, the flocculant mainly has the functions of enabling groups with positive (negative) electricity and particles or particles which are difficult to separate and have negative (positive) electricity to be close to each other, reducing the electric potential of the flocculant to enable the particles to be in an unstable state and enabling the particles to be concentrated by utilizing the polymerization property of the flocculant, thereby forming large particles which are easier to be filtered and removed, starting a motor, driving an output shaft to rotate by the motor, driving a stirring blade to rotate and stir, fully mixing a flocculating agent with water, improving the efficiency of collecting particles of the flocculating agent, after the sewage is filtered by a filtering baffle plate, entering a water purification area, starting a centrifugal pump II, slowly opening an outlet valve II, conveying the filtered water after secondary filtration to a nanofiltration tank through a pipeline of the centrifugal pump II, slowing down the sewage by a buffer plate and then dropping on the surface of a nanofiltration membrane, preventing the filtration efficiency of the nanofiltration membrane from being reduced or even damaged due to overlarge water pressure impacting the nanofiltration membrane, filtering and removing residual micro particles in the sewage by the nanofiltration membrane, opening a purple light lamp to kill bacteria in the water, wherein the main function of the purple light lamp is to emit ultraviolet rays, and the ultraviolet rays with the wavelength of 200-290 nm can penetrate cell membranes of the bacteria and viruses to Damage Nucleic Acids (DNA), the cell loses the reproductive capacity and achieves the effect of quick sterilization. And (4) enabling the filtered and sterilized purified water to enter the lower part of the nanofiltration tank, starting a centrifugal pump III, slowly opening an outlet valve III, conveying the treated sewage to a demand device, and finishing filtering. The first fixing sleeve, the second fixing sleeve and the triangular support are used for fixing the sewage inlet pipe. After the device operates for a period of time, a large amount of solid particles are settled at the bottom of the flocculation tank, the blowoff valve is opened periodically, solid pollutants are discharged to the collecting device for further treatment through the blowoff pipe, and the filtering baffle is prevented from being blocked by too many particles. Purpose that the coarse sand layer set up: the filter plate has the function of supporting a fine sand layer, has a certain filtering effect, and prevents the filter plate from being blocked due to undersize sand grains. Purpose that the fine sand layer set up: the filtering efficiency of the fine sand layer is much higher than that of the coarse sand layer, and the filtering efficiency can be greatly improved.

The utility model has the beneficial effects that:

Drawings

FIG. 1 is a schematic structural diagram of a sewage filtering and purifying device according to the present invention.

(1, sewage inlet pipe, 2, filtering pool, 3, sand filtering layer, 4, supporting filter plate, 5, centrifugal pump I, 6, flocculation tank, 7, flocculating agent inlet pipe, 8, filtering baffle, 9, flocculation zone, 10, water purification zone, 11, centrifugal pump II, 12, water supply pipe I, 13, filtering tank, 14, nanofiltration membrane, 15, centrifugal pump III, 16, water supply pipe II, 17, fixed sleeve I, 18, fixed sleeve II, 19, triangular bracket, 20, sewage branch pipe, 21, motor base, 22, motor, 23, output shaft, 24, stirring blade, 25, blow-off pipe, 26, blow-off valve, 27, buffer plate, 28, ultraviolet lamp, 29, sewage, inlet valve, 30, outlet valve I, 31, outlet valve II, 32, outlet valve III, 33, flocculating agent valve, 34, coarse sand layer, 35, fine sand layer)

Detailed Description

The utility model will be further explained with reference to the drawings.

The utility model provides a sewage filtering and purifying device, which is characterized in that: comprises a sewage inlet pipe 1, the sewage inlet pipe 1 is connected with a filtering tank 2, a sand filtering layer 3 is arranged in the filtering tank 2, the lower part of the sand filtering layer 3 is provided with a supporting filter plate 4, the bottom of the filtering tank 2 is connected with a first centrifugal pump 5 through a pipeline, the centrifugal pump I5 is connected with a flocculation tank 6 through a pipeline, a flocculating agent inlet pipe 7 is arranged on the side surface of the flocculation tank 6, the inner side of the bottom of the flocculation tank 6 is provided with a filtering baffle 8, the flocculation tank 6 is divided into a flocculation area 9 and a water purification area 10 by the filtering baffle 8, the bottom of the water purification area 10 is connected with a second centrifugal pump 11 through a pipeline, a first water supply pipe 12 is arranged at the outlet of the second centrifugal pump 11, the first water supply pipe 12 is connected with a nanofiltration tank 13, a nanofiltration membrane 14 is arranged inside the nanofiltration tank 13, the bottom of the nanofiltration tank 13 is connected with a third centrifugal pump 15 through a pipeline, and a second water supply pipe 16 is arranged at the outlet of the third centrifugal pump 15.

Filtering ponds 2 are open-top's cuboid structure, 2 tops of filtering ponds are transversely strideed across to sewage inlet pipe 1, fixed cover 17 and fixed cover two 18 have been cup jointed to sewage inlet pipe 1 lie in 2 both sides of filtering ponds, fixed

cover

17 and 2 top fixed connection of filtering ponds, fixed two 18 fixedly connected with A-frame 19 of fixed cover, the 19 other ends of A-frame and 2 lateral wall fixed connection of filtering ponds, sewage inlet pipe 1 lies in 2 tops of filtering ponds and is equipped with sewage branch pipe 20, sewage branch pipe 20 evenly distributed is in 2 tops of filtering ponds.

6 tops of flocculation tank are equipped with motor cabinet 21, motor cabinet 21 upper portion is fixed with motor 22, motor 22 is equipped with output shaft 23, output shaft 23 inserts and extends to 6 insides of flocculation tank from 6 tops of flocculation tank, output shaft 23 is equipped with stirring vane 24.

And a sewage discharge pipe 25 is arranged at the bottom of the flocculation area 9, and a sewage discharge valve 26 is arranged on the sewage discharge pipe 25.

The water supply pipe I12 is inserted from the top of the nanofiltration tank 13 and extends into the nanofiltration tank 13, and a buffer plate 27 is arranged below the tail end of the water supply pipe I12 inside the nanofiltration tank 13.

And an ultraviolet lamp 28 is arranged at the top of the inner side of the nanofiltration tank 13.

The sewage inlet pipe 1 is provided with a sewage inlet valve 29, the centrifugal pump I5 is provided with a first outlet valve 30, the centrifugal pump II 11 is provided with a second outlet valve 31, the centrifugal pump III 15 is provided with a third outlet valve 32, and the flocculant inlet pipe 7 is provided with a flocculant valve 33.

The sand filter layer 3 is provided with a coarse sand layer 34 and a fine sand layer 35.

According to the illustration of FIG. 1:

when in use, firstly, the sewage inlet valve 29 is opened, sewage is introduced, the sewage enters the filtering tank 2 from the sewage branch pipe 20 through the sewage inlet pipe 1 in a multi-pipeline way, the sewage is ensured to be uniformly sprinkled on the surface of the sand filtering layer 3 of the sewage tank 2, after the sewage is sequentially settled and filtered through the fine sand layer 35 and the coarse sand layer 34, large-particle pollutants in the sewage stay on the surface and the inner part of the sand filtering layer 3, then enter the bottom of the filtering tank 2 after the filtering plate 4 is supported, the centrifugal pump I5 is started, the outlet valve I30 is slowly opened, filtered water after primary filtration is conveyed to the flocculation tank 6 along a pipeline through the centrifugal pump I5, the flocculating agent valve 33 is opened, a flocculating agent is introduced into the flocculation tank 6, and the flocculating agent mainly has the functions of enabling groups with positive (negative) electric property and particles or particles which are difficult to separate and have negative (positive) electric property to be close to each other, the electric potential of the flocculating agent is reduced to be in an unstable state, the particles are concentrated by utilizing the polymerization property of the water, so that large particles are formed and are easier to be filtered and removed, the motor 22 is started, the motor 22 drives the output shaft 23 to rotate, the stirring blade 24 is driven to rotate and stir, the flocculating agent and the water are fully mixed, the particle collecting efficiency of the flocculating agent is improved, the sewage enters the water purifying area after being filtered by the filtering baffle plate 8, the centrifugal pump II 11 is started, the outlet valve II 31 is slowly opened, the filtered water after secondary filtration is conveyed to the nanofiltration tank 13 along a pipeline through the centrifugal pump II 11, the sewage is decelerated by the buffer plate 27 and then falls on the surface of the nanofiltration membrane 14, the phenomenon that the filtering efficiency of the nanofiltration membrane 14 is reduced or even damaged due to the fact that the nanofiltration membrane 14 is impacted by overlarge water pressure is prevented, the residual tiny particles in the sewage are filtered and removed after the sewage is filtered by the nanofiltration membrane 14, the purple light lamp 28 is opened, bacteria in the water are killed, and the main function of the purple light lamp 28 is to emit ultraviolet rays, ultraviolet rays with the wavelength of 200-290 nm can penetrate cell membranes of bacteria and viruses to Damage Nucleic Acid (DNA), so that cells lose reproductive capacity and the effect of quick sterilization is achieved. And (3) enabling the filtered and sterilized purified water to enter the lower part of the nanofiltration tank 13, starting the centrifugal pump III 15, slowly opening the outlet valve III 32, conveying the treated sewage to a demand device, and finishing filtering. The first fixing sleeve 17, the second fixing sleeve 18 and the triangular bracket 19 are used for fixing the sewage inlet pipe 1. After the device operates for a period of time, a large amount of solid particles are settled at the bottom of the flocculation tank 6, the blowoff valve 26 is opened periodically, solid pollutants are discharged to the collecting device through the blowoff pipe 25 for further treatment, and the filtering baffle 8 is prevented from being blocked by too many particles. Purpose of the coarse sand layer 34 setting: the filter plate has the function of supporting the fine sand layer 35, has a certain filtering effect, and prevents the filter plate 4 from being blocked due to undersize sand grains. Purpose of the fine sand layer 35 setting: the filtering efficiency of the fine sand layer 35 is much higher than that of the coarse sand layer 34, and the filtering efficiency can be greatly improved.

The utility model adopts multiple filtering devices, filters the sewage step by step according to the particle size of pollutants in the sewage from large to small, and uses a sterilizing device to effectively kill bacteria while treating the sewage, thereby achieving the deep purification of the sewage.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a sewage filtration purification device which characterized in that: comprises a sewage inlet pipe (1), the sewage inlet pipe (1) is connected with a filtering tank (2), a sand filtering layer (3) is arranged inside the filtering tank (2), a supporting filter plate (4) is arranged on the lower part of the sand filtering layer (3), a first centrifugal pump (5) is connected to the bottom of the filtering tank (2) through a pipeline, a flocculation tank (6) is connected to the first centrifugal pump (5) through a pipeline, a flocculating agent inlet pipe (7) is arranged on the side surface of the flocculation tank (6), a filtering baffle (8) is arranged on the inner side of the bottom of the flocculation tank (6), the flocculation tank (6) is divided by the filtering baffle (8) into a flocculation area (9) and a water purification area (10), a second centrifugal pump (11) is connected to the bottom of the water purification area (10) through a pipeline, a first water feeding pipe (12) is arranged at the outlet of the second centrifugal pump (11), and a first water feeding pipe (12) is connected with a nanofiltration tank (13), receive canister (13) inside and be equipped with and receive filter membrane (14), it has centrifugal pump three (15) to receive canister (13) bottom through the pipe connection, the export of centrifugal pump three (15) is equipped with delivery pipe two (16).

2. The sewage filtering and purifying device according to claim 1, wherein: filter tank (2) are open-top's cuboid structure, filter tank (2) top is transversely strideed across in sewage inlet pipe (1), sewage inlet pipe (1) is located filter tank (2) both sides and has cup jointed fixed cover (17) and fixed cover two (18), fixed cover (17) and filter tank (2) top fixed connection, fixed cover two (18) fixedly connected with A-frame (19), A-frame (19) other end and filter tank (2) lateral wall face fixed connection, sewage inlet pipe (1) is located filter tank (2) top and is equipped with sewage branch pipe (20), sewage branch pipe (20) evenly distributed is in filter tank (2) top.

3. The sewage filtering and purifying device according to claim 1, wherein: flocculation jar (6) top is equipped with motor cabinet (21), motor cabinet (21) upper portion is fixed with motor (22), motor (22) are equipped with output shaft (23), output shaft (23) are inserted and are extended to flocculation jar (6) inside from flocculation jar (6) top, output shaft (23) are equipped with stirring vane (24).

4. The sewage filtering and purifying device according to claim 1, wherein: and a sewage discharge pipe (25) is arranged at the bottom of the flocculation area (9), and a sewage discharge valve (26) is arranged on the sewage discharge pipe (25).

5. The sewage filtering and purifying device according to claim 1, wherein: the water supply pipe I (12) is inserted from the top of the nanofiltration tank (13) and extends into the nanofiltration tank (13), and a buffer plate (27) is arranged below the tail end of the water supply pipe I (12) inside the nanofiltration tank (13).

6. The sewage filtering and purifying device according to claim 1, wherein: and an ultraviolet lamp (28) is arranged at the top of the inner side of the nanofiltration tank (13).

7. The sewage filtering and purifying device according to claim 1, wherein: the sewage inlet pipe (1) is equipped with sewage inlet valve (29), centrifugal pump (5) are equipped with outlet valve (30), centrifugal pump two (11) are equipped with outlet valve two (31), centrifugal pump three (15) are equipped with outlet valve three (32), flocculating agent inlet pipe (7) are equipped with flocculating agent valve (33).

8. The sewage filtering and purifying device according to claim 1, wherein: the sand filtering layer (3) is provided with a coarse sand layer (34) and a fine sand layer (35).