CN211836738U

CN211836738U - Sewage precipitation filtration system and water treatment system

Info

Publication number: CN211836738U
Application number: CN202020496646.4U
Authority: CN
Inventors: 胡小弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-11-03
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a sewage sedimentation filtration system and water treatment system relates to water treatment's technical field, include: a first filtering device and a second filtering device; the first filtering device is stacked on the second filtering device, the first filtering device is communicated with the second filtering device, and the second filtering device is configured to be capable of performing secondary filtration on liquid filtered by the first filtering device. Because the range upon range of setting of first filter equipment is on the second filter equipment, reduces the occupation of land space of entire system, and the liquid after first filter equipment filters enters into the second filter equipment, carries out the secondary filter, and it is big to have alleviated the required area of sewage treatment system who exists among the prior art, technical problem with higher costs, has realized reducing sewage treatment system area, guarantees the filter fineness simultaneously, guarantees the technological effect of producing water quality.

Description

Sewage precipitation filtration system and water treatment system

Technical Field

The utility model belongs to the technical field of the water treatment technique and specifically relates to a sewage sedimentation filtration system and water treatment system are related to.

Background

The water resource is poor in China, the rapid increase of the discharge amount of the domestic sewage not only worsens the current situation that the available water resource in China is seriously lower than the world standard, but also imposes a heavy burden on the economic development of China. The reasons that the domestic sewage treatment rate is always low in China mainly comprise: the sewage treatment facilities are incomplete, and the technology is laggard; the capital is insufficient, and the investment is not enough.

In order to solve a series of increasingly serious problems caused by domestic sewage, more domestic sewage treatment systems are built, more water treatment equipment can improve the filtration precision, and the produced water quality is higher.

However, more sewage treatment systems are built, which easily results in large occupied area of equipment, higher cost and larger capital investment in the process of building the equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewage sedimentation filtration system and water treatment system to it is big to have alleviated the required area of sewage treatment system who exists among the prior art, the higher technical problem of cost.

In a first aspect, the utility model provides a sewage sedimentation filtration system, include: a first filtering device and a second filtering device;

the first filtering device is arranged on the second filtering device in a stacked mode, the first filtering device is communicated with the second filtering device, and the second filtering device is configured to be capable of carrying out secondary filtering on liquid filtered by the first filtering device.

In an alternative embodiment, the first filtering means comprises a first filtering unit and a second filtering unit;

the second filtering unit is arranged on the first filtering unit in a stacked mode;

the first filtering unit is provided with a first drain pipe, the first drain pipe is communicated with the first filtering unit, and the first drain pipe extends into the second filtering device and penetrates out of the second filtering device.

In an optional embodiment, the second filtering unit is provided with a second sewage draining pipe, the second sewage draining pipe is communicated with the second filtering unit, and the second sewage draining pipe extends into the first filtering unit and penetrates out of the first filtering unit.

In an alternative embodiment, the first filtering unit comprises a filtering body, a partition plate and a liquid inlet pipe;

the separation plate is connected with the bottom of the filtering main body, a liquid flow channel is enclosed between the separation plate and the filtering main body, and the liquid flow channel is spiral;

the feed liquor pipe with filter the main part intercommunication, pending sewage passes through the feed liquor pipe enters into filter in the main part, just pending sewage along liquid flow path is the heliciform motion.

In an alternative embodiment, the first filter unit further comprises a filter member;

the filtering member is arranged in the filtering main body and is abutted against the top of the partition plate, and the filtering member is configured to be capable of filtering the sewage to be treated.

In an alternative embodiment, the first filter unit further comprises a fastening member;

the fastening member is provided on an inner wall of the filter body, and the fastening member abuts against the filter member.

In an alternative embodiment, the first filter unit further comprises a water outlet pipe;

the outlet pipe is communicated with the filtering main body and the second filtering device, and the outlet pipe is configured to convey the liquid filtered by the filtering component to the second filtering device.

In an alternative embodiment, the first filtration unit further comprises a back flush gas member;

the backwash gas member extends into the filter body, the backwash gas member being configured to deliver backwash gas into the filter body.

In an alternative embodiment, the back purge gas member comprises a back purge gas tube and a nozzle;

the backflushing air pipe is arranged in the filtering main body, the nozzles are arranged at intervals along the length direction of the backflushing air pipe, and backflushing air in the backflushing air pipe is sprayed out through the nozzles;

the spray direction of the nozzle is away from the filter member.

In an alternative embodiment, the first filter unit further comprises a support;

the support is disposed between the recoil air tube and the filter member.

In an optional embodiment, an overflow pipe is arranged on the liquid inlet pipe and is communicated with the liquid inlet pipe, and the overflow pipe is configured to convey sewage to be treated in the liquid inlet pipe to a first sewage discharge pipe;

and an overflow control valve is arranged on the overflow pipe.

In an alternative embodiment, the second filtration device comprises a container body and a sediment filter assembly;

the sedimentation filter assembly is arranged in the container main body, and the sedimentation filter assembly is configured to be capable of sequentially carrying out sedimentation filter treatment on the liquid filtered by the first filter device.

In an alternative embodiment, the sedimentation filter assembly comprises a sloped tube sedimentation tank and a filter layer;

the inclined tube sedimentation tank is located above the filter layer and connected with the inner wall of the container main body, and liquid precipitated in the inclined tube sedimentation tank freely falls into the filter layer.

In an alternative embodiment, the second filtration device further comprises a blowdown sump;

the pipe chute sedimentation tank is provided with a drain outlet, the sewage collecting tank is communicated with the drain outlet, and the sewage collecting tank is configured to collect sewage precipitated in the pipe chute sedimentation tank.

In an alternative embodiment, the sewage precipitation filtration system further comprises a back flush gas delivery member;

the backflushing gas conveying member is in communication with the first filtering device and the second filtering device, respectively, and is configured to be capable of conveying backflushing gas to the first filtering device and the second filtering device.

In a second aspect, the utility model provides a water treatment system, which comprises a liquid inlet header pipe, a liquid inlet branch pipe and the sewage precipitation and filtration system;

the feed liquor house steward and a plurality of feed liquor branch pipe intercommunication, it is a plurality of the feed liquor branch pipe is respectively with a plurality of first filter equipment intercommunication, pending sewage in the feed liquor house steward is through a plurality of the feed liquor branch pipe enters into a plurality of in the first filter equipment.

The utility model provides a pair of sewage sedimentation filtration system, include: a first filtering device and a second filtering device; the first filtering device is stacked on the second filtering device, the first filtering device is communicated with the second filtering device, and the second filtering device is configured to be capable of performing secondary filtration on liquid filtered by the first filtering device. Because the range upon range of setting of first filter equipment is on the second filter equipment, reduces the occupation of land space of entire system, and the liquid after first filter equipment filters enters into the second filter equipment, carries out the secondary filter, and it is big to have alleviated the required area of sewage treatment system who exists among the prior art, technical problem with higher costs, has realized reducing sewage treatment system area, guarantees the filter fineness simultaneously, guarantees the technological effect of producing water quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a sewage sedimentation and filtration system provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first filtering unit in the sewage sedimentation filtering system provided by the embodiment of the present invention;

FIG. 3 is a schematic structural view of a second filtering device in the sewage sedimentation and filtration system provided by the embodiment of the present invention;

FIG. 4 is a schematic structural view of a sewage collecting tank provided in a second filtering device of the sewage sedimentation and filtration system according to the embodiment of the present invention;

FIG. 5 is a schematic structural view of another arrangement of the first filtering device and the second filtering device of the sewage sedimentation and filtration system provided by the embodiment of the present invention;

FIG. 6 is a schematic structural view of another arrangement mode of the second filtering device of the sewage sedimentation filtering system provided by the embodiment of the present invention;

fig. 7 is a schematic view of an overall structure of a water treatment system according to an embodiment of the present invention.

Icon: 100-a first filtration device; 110-a first filtration unit; 111-a first drain pipe; 112-a filter body; 113-a divider plate; 114-a liquid inlet pipe; 1141-an overflow pipe; 115-a filter member; 116-a fastening member; 117-outlet pipe; 118-a back flush gas member; 1181-recoil trachea; 1182-nozzle; 120-a second filtration unit; 121-a second sewage draining pipe; 200-a second filtration device; 210-a container body; 220-a precipitation filtration module; 211-inclined tube sedimentation tank; 212-a filter layer; 230-a sewage collecting tank; 300-a recoil gas transport member; 400-a liquid inlet header pipe; 500-liquid inlet branch pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1, the sewage sedimentation and filtration system provided by the present embodiment includes: a first filtering device 100 and a second filtering device 200; the first filter device 100 is stacked on the second filter device 200, the first filter device 100 is communicated with the second filter device 200, and the second filter device 200 is configured to be capable of performing a secondary filtration of the liquid filtered by the first filter device 100.

Specifically, along the vertical direction, the first filtering device 100 is stacked on the second filtering device 200 to reduce the occupied space, the external sewage firstly enters the first filtering device 100, the first filtering device 100 filters the sewage, the filtered liquid enters the second filtering device 200 to perform the second-stage filtration, and the filtering precision of the second filtering device 200 is higher than that of the first filtering device 100, for example, the content of the water suspension in the MBR process is up to 10000mg/L, the first filtering device 100 can remove more than 99% of the suspension after the first-stage treatment, that is, the content of the suspension after the first-stage treatment can be reduced to less than 100mg/L, but even if the MBR still can not reach the water production index of the ultrafiltration membrane, the second filtering device 200 is required to be used as the second-stage treatment with higher precision, that is, the first-stage treatment is the pretreatment link of the second-stage treatment, without this link, smooth implementation of the subsequent second-level high-precision processing cannot be guaranteed.

The sewage precipitation filtration system that this embodiment provided includes: a first filtering device 100 and a second filtering device 200; the first filter device 100 is stacked on the second filter device 200, the first filter device 100 is communicated with the second filter device 200, and the second filter device 200 is configured to be capable of performing a secondary filtration of the liquid filtered by the first filter device 100. Because the range upon range of setting of first filter equipment 100 is on second filter equipment 200, reduce the occupation of land space of entire system, and the liquid after first filter equipment 100 filters enters into second filter equipment 200, carries out the secondary filter, and it is big to have alleviated the required area of sewage treatment system who exists among the prior art, and technical problem with higher costs has realized reducing sewage treatment system area, guarantees the filter fineness simultaneously, guarantees the technological effect of producing water quality.

On the basis of the above embodiment, in an alternative implementation manner, the first filtering device 100 in the sewage sedimentation filtering system provided by the embodiment includes a first filtering unit 110 and a second filtering unit 120; the second filter unit 120 is stacked on the first filter unit 110; the first filter unit 110 has a first drain pipe 111, the first drain pipe 111 communicates with the first filter unit 110, and the first drain pipe 111 extends into the second filter device 200 and passes out of the second filter device 200.

Specifically, the second filtering unit 120 is stacked on the first filtering unit 110, the number of the second filtering units can be set as the Nth unit according to actual conditions, the second filtering units are vertically combined together to form a precipitation filtering loop, the occupied space is smaller, and the combination of all loops is in parallel relation, so that the requirements of different scales and different flow rates can be met, and meanwhile, the structures of the first filtering unit 110 and the second filtering unit 120 are the same, so that standardization and scale production can be formed, the process link is simplified, and the cost is reduced.

It should be noted that, because the dirt settled in the first filtering unit 110 can freely fall to the bottom of the container, the dirt discharge port of the first filtering unit 110 is arranged at the bottom of the container, and the first dirt discharge pipe 111 is used to discharge the dirt in the first filtering unit 110, compared with the second filtering device 200, the first dirt discharge pipe 111 of the first filtering unit 110 positioned above extends into the second filtering device 200 and penetrates out of the second filtering device 200, so that the bottom of the first filtering unit 110 is in contact with the top of the second filtering device 200, and the first dirt discharge pipe 111 is prevented from influencing the stacking arrangement of the first filtering unit 110 and the second filtering device 200, thereby reducing the use of space.

In addition, the first filtering device 100 and the second filtering device 200 can also be arranged in the way shown in fig. 5 and 6, and when arranged in the way shown in fig. 6, a cushion block is arranged at the bottom of the first filtering device 100 to support the first filtering device 100.

In an alternative embodiment, the second filtering unit 120 has a second sewage pipe 121, the second sewage pipe 121 communicates with the second filtering unit 120, and the second sewage pipe 121 extends into the first filtering unit 110 and passes out of the first filtering unit 110.

Specifically, in the first filtering apparatus 100, the second sewage draining pipe 121 of the second filtering unit 120 located above extends into the first filtering unit 110 located below, so that the space required by the sewage draining pipe is reduced, and each filtering unit can be arranged in a stacked manner.

In an alternative embodiment, as shown in fig. 2, the first filtering unit 110 includes a filtering body 112, a partition plate 113, and an inlet pipe 114; the partition plate 113 is connected with the bottom of the filtering main body 112, a liquid flow channel is enclosed between the partition plate 113 and the filtering main body 112, and the liquid flow channel is in a spiral shape; the liquid inlet pipe 114 is communicated with the filtering main body 112, the sewage to be treated enters the filtering main body 112 through the liquid inlet pipe 114, and the sewage to be treated spirally moves along the liquid flow channel.

Specifically, the filter main body 112 is a cylindrical filter container, the filter main body 112 is provided with a partition plate 113 in the filter main body 112, the partition plate 113 is spirally arranged, so that a liquid flow channel formed by enclosing the partition plate 113 and the filter main body 112 is spiral, and the sewage in the liquid inlet pipe 114 enters the filter main body 112 and flows along the liquid flow channel to spirally move.

In an alternative embodiment, the first filter unit 110 further comprises a filter member 115; the filter member 115 is disposed in the filter body 112, the filter member 115 abuts on the top of the partition plate 113, and the filter member 115 is configured to filter the sewage to be treated.

Specifically, the filtering member 115 is fixed in the filtering main body 112, the filtering member 115 is specifically set as a filtering net, and in the process of rising of the sewage level, the sewage in the spiral motion generates shearing force to the filtering member 115, and the shearing force can separate the dirt adhered to the filtering member 115 from the filtering member 115, so that the filtering effect is effectively prevented from being influenced by the blocking of the filtering holes of the filtering member 115 by the dirt after long-time use.

In addition, the filter body 112 may be square, the partition plate 113 may be fixed to the bottom of the filter body 112, and the liquid flow path between the partition plate 113 and the inner wall of the filter body 112 may be S-shaped, and the S-shaped flow of the contaminated water may have a shearing force to the filter member 115, thereby extending the life of the filter member 115.

Still can set up the backup pad in every filter unit, the backup pad is divided into support and under bracing, go up the support setting in the top of filtering element 115, go up the top butt of support and filter unit, the under bracing sets up the below at filtering element 115, the bottom butt of under bracing and filter unit, when will filtering element 115 fixed, also can play the effect that improves and filter main part 112 intensity, avoid leading to lower floor's filter unit to warp because of upper filtering element's weight effect on lower floor's filter unit.

In an alternative embodiment, first filter element 110 further comprises a fastening member 116; the fastening member 116 is provided on the inner wall of the filter body 112, and the fastening member 116 abuts against the filter member 115.

Specifically, the fastening member 116 is disposed on the inner wall of the filter main body 112, the fastening member 116 is specifically configured as a stainless steel retainer ring, and is divided into an upper retainer ring and a lower retainer ring, the upper retainer ring and the lower retainer ring are respectively disposed at the bottom of the top of the filter member 115, and the filter member 115 is clamped between the upper retainer ring and the lower retainer ring, so that the up-and-down movement of the filter member 115 is effectively avoided.

In an alternative embodiment, the first filter unit 110 further comprises a water outlet pipe 117; the outlet pipe 117 communicates with the filter body 112, and the outlet pipe 117 communicates with the second filter device 200, the outlet pipe 117 being configured to be able to convey the liquid filtered by the filter member 115 into the second filter device 200.

Specifically, the water outlet position of the water outlet pipe 117 is located above the filtering member 115 and close to the top of the filtering body 112, and the liquid filtered by the filtering member 115 is discharged through the water outlet pipe 117 and flows into the second filtering device 200, so that the second filtering device 200 performs the secondary filtering.

In an alternative embodiment, the first filter unit 110 further comprises a back flush member 118; a back flushing gas member 118 extends into the filter body 112, the back flushing gas member 118 being configured to deliver back flushing gas into the filter body 112.

Specifically, the back flushing gas member 118 is disposed in the filter main body 112, and the back flushing gas member 118 supplies back flushing gas into the filter main body 112 so as to flush the filter member 115 with the back flushing gas for back flushing.

In an alternative embodiment, the recoil gas component 118 includes a recoil gas tube 1181 and a nozzle 1182; the backflushing air pipe 1181 is arranged in the filtering main body 112, the nozzles 1182 are arranged at intervals along the length direction of the backflushing air pipe 1181, and the backflushing air in the backflushing air pipe 1181 is sprayed out through the nozzles 1182; the spray direction of the nozzle 1182 is away from the filter member 115.

Specifically, the plurality of nozzles 1182 are arranged in parallel along the length direction of the back flushing air pipe 1181, the jetting direction of the nozzles 1182 is upward, and in the back flushing process, because the filter main body 112 is a sealing structure, an air cushion chamber is formed in the space above the filter member 115, water flow is pushed downward by pressure to pass through the filter screen, and then air passes through the filter screen, so that the back flushing effect can be effectively realized by the combined action of back flushing water and back flushing air, and the design index is recovered.

In an alternative embodiment, the first filter unit 110 further comprises a support; the support is disposed between the recoil air tube 1181 and the filter member 115.

Specifically, one end of the supporting member is connected to the filtering member 115, and the other end of the supporting member is connected to the back-flushing air pipe 1181, so that the back-flushing air pipe 1181 is supported by the supporting member, and the position of the back-flushing air pipe 1181 is fixed.

In addition, a filter screen compression mesh can be further arranged on the upper surface of the filter member 115, the compression mesh is tightly attached to the filter member 115, the pore diameter of the compression mesh is larger than that of the filter member 115, and the compression mesh can effectively avoid deformation of the filter member 115 caused by liquid scouring.

In an optional embodiment, an overflow pipe 1141 is disposed on the liquid inlet pipe 114, the overflow pipe 1141 is communicated with the liquid inlet pipe 114, and the overflow pipe 1141 is configured to convey the sewage to be treated in the liquid inlet pipe 114 to the first sewage discharge pipe 111; an overflow control valve is arranged on the overflow pipe 1141.

Specifically, each filtering unit is provided with a liquid inlet pipe 114 in a matching manner, each liquid inlet pipe 114 is provided with an overflow pipe 1141, the overflow control valve can be opened in the process that sewage enters the first filtering unit 110 through the liquid inlet pipe 114, and a part of sewage in the liquid inlet pipe 114 enters the overflow pipe 1141 and flows into the first sewage discharge pipe 111 through the overflow pipe 1141, so that the flow rate and the flow velocity of the sewage entering the first filtering unit 110 are reduced.

In addition, it should be noted that the height difference between the overflow pipe 1141 and the liquid inlet pipe 114 affects the flow rate of the sewage entering the first filter unit 110, and the larger the height difference, the higher the flow rate.

In an alternative embodiment, as shown in fig. 3, the second filtering device 200 includes a container body 210 and a precipitation filter assembly 220; the sedimentation filter assembly 220 is disposed in the container body 210, and the sedimentation filter assembly 220 is configured to sequentially perform sedimentation filtration treatment on the liquid filtered by the first filter device 100.

Specifically, the sedimentation filter assembly 220 is placed in the container main body 210, the container main body 210 is located below the first filter device 100, the first filter device 100 is placed on the container main body 210 in a stacked manner, and the liquid filtered by the first filter device 100 enters the top of the container main body 210 and freely falls into the sedimentation filter assembly 220 for secondary filtration.

In an alternative embodiment, the sedimentation filter assembly 220 comprises a sloped tube sedimentation tank 211 and a filter layer 212; the inclined tube sedimentation tank 211 is positioned above the filter layer 212, the inclined tube sedimentation tank 211 is connected with the inner wall of the container main body 210, and liquid settled in the inclined tube sedimentation tank 211 freely falls into the filter layer 212.

Specifically, the pipe chute sedimentation tank 211 is fixed in the container main body 210, and the pipe chute sedimentation tank 211 is located the top of filter layer 212, and liquid after first filter equipment 100 filters enters into the container main body 210 in freely falling to the pipe chute sedimentation tank 211, after the pipe chute sedimentation tank 211 deposits, the supernatant is because the liquid level risees, fall into the filter layer 212 in the pipe chute sedimentation tank 211, utilize the filter material in the filter layer 212 to filter liquid, realize the secondary filter, it is higher to produce the quality.

In an alternative embodiment, as shown in fig. 4, the second filtering device 200 further includes a blowdown sump 230; be provided with the drain on the pipe chute sedimentation tank 211, blowdown catch basin 230 communicates with the drain, and blowdown catch basin 230 configures to and can collects the filth that pipe chute sedimentation tank 211 precipitated.

Specifically, the bottom of tube settler 211 is provided with the drain, and the filth after tube settler 211 deposits enters into blowdown collecting tank 230, collects the filth, and the supernatant after the sediment of blowdown collecting tank 230 can be filtered in entering into first filter equipment 100 again as sewage, improves sewage water production ratio.

In addition, a sedimentation tank can be stacked above the sewage collection tank 230, and the liquid settled by the sedimentation tank enters the inclined tube sedimentation tank 211 for secondary sedimentation.

In an alternative embodiment, the sewage precipitation filtration system further comprises a back flushing gas conveying member 300; the back flush gas delivery member 300 is in communication with the first and

second filtering devices

100 and 200, respectively, and the back flush gas delivery member 300 is configured to be able to deliver back flush gas to the first and

second filtering devices

100 and 200.

Specifically, the backflushing gas conveying member 300 is specifically a gas storage tank and an air compressor, and the backflushing gas is stored in the gas storage tank, and is pushed by the air compressor to flow and conveyed to the first filtering device 100 and the second filtering device 200.

As shown in fig. 7, the water treatment system provided by the embodiment includes a liquid inlet header pipe 400, a liquid inlet branch pipe 500 and a sewage precipitation and filtration system; the liquid inlet header pipe 400 is communicated with the liquid inlet branch pipes 500, the liquid inlet branch pipes 500 are respectively communicated with the first filtering devices 100, and sewage to be treated in the liquid inlet header pipe 400 enters the first filtering devices 100 through the liquid inlet branch pipes 500.

Specifically, each liquid inlet branch pipe 500 is communicated with a first filtering device 100, external sewage enters the liquid inlet main pipe 400, the liquid inlet branch pipes 500 are used for conveying the sewage to the first filtering devices 100, multiple paths of sewage run in parallel, and the treatment efficiency is higher.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A sewage precipitation filtration system, comprising: a first filtering device (100) and a second filtering device (200);

the first filtering device (100) is arranged on the second filtering device (200) in a stacked mode, the first filtering device (100) is communicated with the second filtering device (200), and the second filtering device (200) is configured to be capable of carrying out secondary filtering on liquid filtered by the first filtering device (100).

2. The wastewater precipitation filtration system of claim 1,

the first filtering device (100) comprises a first filtering unit (110) and a second filtering unit (120);

the second filtering unit (120) is arranged on the first filtering unit (110) in a stacked manner;

the first filtering unit (110) is provided with a first drain pipe (111), the first drain pipe (111) is communicated with the first filtering unit (110), and the first drain pipe (111) extends into the second filtering device (200) and penetrates out of the second filtering device (200).

3. The wastewater precipitation filtration system of claim 2,

the second filtering unit (120) is provided with a second sewage discharge pipe (121), the second sewage discharge pipe (121) is communicated with the second filtering unit (120), and the second sewage discharge pipe (121) extends into the first filtering unit (110) and penetrates out of the first filtering unit (110).

4. The wastewater precipitation filtration system of claim 2,

the first filtering unit (110) comprises a filtering main body (112), a partition plate (113) and a liquid inlet pipe (114);

the separation plate (113) is connected with the bottom of the filtering main body (112), a liquid flow channel is enclosed between the separation plate (113) and the filtering main body (112), and the liquid flow channel is spiral;

the liquid inlet pipe (114) is communicated with the filtering main body (112), sewage to be treated enters the filtering main body (112) through the liquid inlet pipe (114), and the sewage to be treated moves spirally along the liquid flow channel.

5. The wastewater precipitation filtration system of claim 4,

the first filter unit (110) further comprises a filter member (115);

the filtering member (115) is arranged in the filtering main body (112), the filtering member (115) is abutted against the top of the partition plate (113), and the filtering member (115) is configured to filter the sewage to be treated.

6. The wastewater precipitation filtration system of claim 5,

the first filter unit (110) further comprises a fastening member (116);

the fastening member (116) is provided on an inner wall of the filter body (112), the fastening member (116) abutting against the filter member (115).

7. The wastewater precipitation filtration system of claim 6,

the first filter unit (110) further comprises a water outlet pipe (117);

the outlet pipe (117) is in communication with the filtering body (112) and the outlet pipe (117) is in communication with the second filtering device (200), the outlet pipe (117) being configured to enable the liquid filtered by the filtering means (115) to be conveyed into the second filtering device (200).

8. The wastewater precipitation filtration system of claim 7,

the first filter unit (110) further comprises a backwash delivery member (300);

the backwash gas delivery member (300) extends into the filter body (112), the backwash gas delivery member (300) being configured to deliver backwash gas into the filter body (112).

9. The wastewater precipitation filtration system of claim 8,

the recoil gas transport member (300) comprises a recoil gas tube (1181) and a nozzle (1182);

the backflushing air pipe (1181) is arranged in the filtering main body (112), the nozzles (1182) are arranged at intervals along the length direction of the backflushing air pipe (1181), and backflushing air in the backflushing air pipe (1181) is ejected out through the nozzles (1182);

the spray direction of the nozzle (1182) is away from the filter member (115).

10. The wastewater precipitation filtration system of claim 9,

the first filter unit (110) further comprises a support;

the support is disposed between the recoil gas tube (1181) and the filter member (115).

11. The wastewater precipitation filtration system of claim 4,

an overflow pipe (1141) is arranged on the liquid inlet pipe (114), the overflow pipe (1141) is communicated with the liquid inlet pipe (114), and the overflow pipe (1141) is configured to convey sewage to be treated in the liquid inlet pipe (114) to a first sewage discharge pipe (111);

an overflow control valve is arranged on the overflow pipe (1141).

12. The wastewater precipitation filtration system of claim 1,

the second filtering device (200) comprises a container body (210) and a sedimentation filter assembly (220);

the sedimentation filter assembly (220) is arranged in the container main body (210), and the sedimentation filter assembly (220) is configured to be capable of sequentially carrying out sedimentation filter treatment on the liquid filtered by the first filter device (100).

13. The wastewater precipitation filtration system of claim 12,

the sedimentation filter assembly (220) comprises an inclined tube sedimentation tank (211) and a filter layer (212);

the inclined tube sedimentation tank (211) is positioned above the filter layer (212), the inclined tube sedimentation tank (211) is connected with the inner wall of the container main body (210), and liquid precipitated in the inclined tube sedimentation tank (211) freely falls into the filter layer (212).

14. The wastewater precipitation filtration system of claim 13,

the second filtering device (200) further comprises a blowdown collecting tank (230);

a sewage draining outlet is formed in the inclined tube sedimentation tank (211), the sewage draining collecting tank (230) is communicated with the sewage draining outlet, and the sewage draining collecting tank (230) is configured to be capable of collecting sewage precipitated in the inclined tube sedimentation tank (211).

15. The wastewater precipitation filtration system of claim 1,

the sewage precipitation filtration system further comprises a back flushing gas conveying member (300);

the backwash gas delivery member (300) is in communication with the first and second filter devices (100, 200), respectively, the backwash gas delivery member (300) being configured to be capable of delivering backwash gas to the first and second filter devices (100, 200).

16. A water treatment system comprising a feed inlet header pipe (400), a feed inlet branch pipe (500) and a sewage precipitation filtration system according to any one of claims 1 to 15;

feed liquor house steward (400) and a plurality of feed liquor branch pipe (500) intercommunication, it is a plurality of feed liquor branch pipe (500) respectively with a plurality of first filter equipment (100) intercommunication, pending sewage in feed liquor house steward (400) is through a plurality of feed liquor branch pipe (500) enters into a plurality of in first filter equipment (100).