CN213231608U

CN213231608U - Modular efficient oil removal air flotation filtering system

Info

Publication number: CN213231608U
Application number: CN202021938300.1U
Authority: CN
Inventors: 罗军杰; 罗林
Original assignee: Qinhuangdao Tonglida Environmental Energy Engeneering Co ltd
Current assignee: Qinhuangdao Tonglida Environmental Energy Engeneering Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-05-18
Anticipated expiration: 2030-09-08

Abstract

The utility model aims at the problem of the great inconvenient transportation of present air supporting filter equipment occupation of land, provide a modular high-efficient deoiling air supporting filtration system, including air supporting device and filter equipment, the air supporting device includes the air supporting pond, and filter equipment includes the filtering ponds, and the filtering ponds includes at least two minute cell bodies, and every minute cell body internal formation becomes an independent check of straining, and the water inlet of each check of straining is respectively through the water purification play water end intercommunication of a raceway and air supporting pond, all is provided with the valve on each raceway, the utility model discloses a modular high-efficient air supporting deoiling filtration system, the transportation is comparatively convenient, and every is strained the check and can independently filter and the backwash, helps improving sewage treatment's efficiency.

Description

Modular efficient oil removal air flotation filtering system

Technical Field

The utility model relates to a sewage purification field, in particular to modular high-efficient deoiling air supporting filtration system.

Background

The air floating process adopts an air floating method in water treatment, highly dispersed micro bubbles are formed in water, solid or liquid particles of hydrophobic groups in waste water are adhered to form a water-gas-particle three-phase mixed system, after the particles are adhered to bubbles, flocs with density smaller than that of the water are formed and float to the water surface, a scum layer is formed and is scraped by a scum scraping device, so that scum-liquid separation is realized. The water treated by the air floatation process is often required to be filtered. The existing air-floating filtering device is provided with a filter screen or a filter layer directly in an air-floating tank for filtering, but the size of the filtering device of the air-floating filtering device is limited by the capacity of the air-floating tank, and the filtering capacity is limited; in order to ensure the filtering capacity of the filtering device, some equipment is directly connected with the filtering device behind the air flotation device, but the structure needs large occupied area and is inconvenient to transport.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modular high-efficient deoiling air supporting filtration system to the problem of the great inconvenient transportation of current air supporting filter equipment occupation of land.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a modular high-efficient deoiling air supporting filtration system, includes air supporting device and filter equipment, and the air supporting device includes the air supporting pond, and filter equipment includes the filtering ponds, and the filtering ponds includes at least two branch cell bodies, and every divides the internal formation of cell to be an independent filter lattice, and the water inlet of each filter lattice all is provided with the valve through the water purification play water end intercommunication of a raceway and air supporting pond respectively on each raceway.

Furthermore, the whole filtering tank is circular or annular, each sub-tank body is fan-shaped or fan-shaped, and each sub-tank body is distributed along the circumference by taking the axis of the filtering tank as the center.

Furthermore, the air floatation tank is circular and is fixedly arranged right above the filter tank.

Furthermore, each filter cell comprises a water distribution weir, a water discharge channel, an air-water distribution channel and a filter material bed, wherein the water distribution weir, the water discharge channel and the air-water distribution channel are all in a groove shape, two ends of each water distribution weir are fixedly connected with the inner wall of the filter tank in a sealing way, the air-water distribution channel and the water discharge channel are vertically arranged and are isolated by a partition plate, the air-water distribution channel is fixedly arranged at the bottom of the filter tank, the water discharge channel is fixedly arranged above the air-water distribution channel, the air-water distribution channel is integrally closed, the top parts of the water distribution weir and the water discharge channel are opened, the top surface of water distribution of the weir is higher than the top surface of the water discharge channel, the cross section of the water distribution weir is V-shaped, a filter area is arranged between the air-water distribution channel and the water discharge channel and the weir, the filter material bed is arranged in the filter area, the filter material bed divides the filter raw water area into, the circumferential side wall of the separation tank body is provided with a sewage draining outlet communicated with the inside of the drainage channel, an air inlet communicated with the inside of the air-water distribution channel, a water purifying port and a water inlet communicated with the inside of the water distribution weir.

Furthermore, the water distribution weir, the water discharge channel and the gas water distribution channel are all long strips and are arranged along the radial direction of the filter tank.

Furthermore, two water distribution weirs are arranged, and the drainage channel and the gas water distribution channel are positioned between the two water distribution weirs.

Furthermore, a circular central channel coaxial with the filtering tank is arranged on the inner side of each split tank in the filtering tank, and a water delivery pipe is arranged in the central channel.

Furthermore, manholes corresponding to the filter grids one to one are arranged on the side wall of the central channel.

Furthermore, each filter grid is the same, and each sub-tank is the same.

The utility model discloses following beneficial effect has:

the utility model discloses a modular high-efficient deoiling air supporting filtration system, filter equipment includes two at least minute cell bodies, filter equipment can be transported by the split into a plurality of parts before whole equipment fixing like this, it is comparatively convenient to transport, and every cell body all has the independent filtration check that possess filtering capability, the assembly process can not influence filter equipment's filter capacity, these filtration checks are independent each other, their end of intaking is respectively through the raceway intercommunication that has the valve with the air supporting pond, every filters check like this and can independently filters and the backwash, when needing to carry out the backwash, can only strain the check at every turn and carry out the backwash, all the other filtration checks can also normally filter, the air supporting device can continuously work, make the backwash, filter, the air supporting can go on simultaneously, this helps improving sewage treatment's efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the modular high-efficiency oil-removing air-floating filtration system of the present invention (the structure of the air-floating device except the air-floating tank is not shown);

FIG. 2 is a schematic structural view of an embodiment of the filtering apparatus of the present invention (one of the sub-tanks is removed, and one of the filter material beds in the sub-tank is hidden);

FIG. 3 is a schematic structural diagram of an embodiment of the filter cell of the present invention;

fig. 4 is a schematic cross-sectional view of a modular high-efficiency oil-removing air-flotation filtration system according to an embodiment of the present invention at a drainage channel and an air distribution channel.

Reference number, 110, filtration tank; 111. an air inlet; 112. a water purifying port; 113. a sewage draining outlet; 114. a water inlet; 115. a separation tank body; 116. a central channel; 117. a manhole; 118. a connecting plate; 120. filtering grids; 121. a water distribution weir; 122. a drainage channel; 123. a gas-water distribution channel; 124. a filter bed; 125. a water purification area; 126. air distribution holes; 127. a water distribution hole; 128. a water distribution small hole; 129. a raw water zone; 130. an inclined plate; 200. an air floatation tank; 300. a water delivery pipe; 301. and (4) a valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

A modular high-efficiency oil-removing air-floating filtering system, as shown in figure 1, comprises an air-floating device and a filtering device. The filtering device includes a filtering tank 110, as shown in fig. 2, the filtering tank 110 is composed of at least two sub-tank bodies 115, in this embodiment, four sub-tank bodies 115 are provided, and other numbers may be set according to actual needs. Each sub-tank body 115 is internally and correspondingly provided with a filter grid 120 with independent filtering and backwashing functions, so that the filtering device can be disassembled into a plurality of independent structures, transportation is facilitated, and preferably, the sub-tank bodies 115 are identical in shape and structure, and batch processing and production are facilitated. The adjacent sub-tank bodies 115 can be fixedly connected through bolts, welding, bonding and other modes, and the adjacent sub-tank bodies 115 can also be not connected with each other and only put through the positions to form the integral shape of the filter tank. In this embodiment, each sub-tank 115 is provided with a connecting plate 118 for connecting other sub-tanks, at least one connecting plate 118 is provided on the top surface of the tank wall on both sides of each sub-tank 115, the connecting plate is in a horizontal plate shape and is located on the top surface of the tank wall of the adjacent sub-tank 115, a threaded hole is provided on the top surface of the tank wall below the connecting plate 118, a through hole is provided on the connecting plate 118 at a position corresponding to the threaded hole, and the two sub-tanks 115 are connected with the threaded hole on the tank wall of the sub-tank 115 through a screw passing through the through hole on the connecting plate 118. The connecting plates 118 and the corresponding sub-tanks 115 may be integrally provided, or may be connected by using a connecting member such as a bolt, and the connecting plates 118 may be provided at any other position such as a bottom wall and a side wall of the sub-tanks 115. Of course, other structures besides the connection plate 118 may be adopted as long as the connection of the cell separation bodies 115 can be realized, for example, ring belts with joints at both ends are provided, the joints are provided with connection holes, the cell separation bodies are firstly spliced into a complete circle or ring shape, then the ring belts are used for surrounding the outer circumference of the circle or circle, the cell separation bodies are surrounded together through the ring belts, and then the joint parts are connected through bolts and nuts, when the ring belts are rigid members, the joints at both ends can be directly welded together in a welding connection manner, so that the cell separation bodies are reed into a whole to realize the relative fixation of the positions of the cell separation bodies 115.

The air floating device comprises an air floating tank 200, the shape and size of the air floating tank 200 are preferably similar to those of the filtering tank 110, and the filtering tank 110 can be set to be in any shape, such as a circle, a rectangle, etc. The bottom wall or the side wall of the air flotation tank 200 is provided with a purified water outlet, the tank wall of each sub-tank body 115 is provided with a water inlet, the water inlet 114 of each sub-tank body 115 is respectively communicated with the purified water outlet of the air flotation tank 200 through a water conveying pipe 300, and each water conveying pipe 300 is respectively provided with a valve 301 for controlling the on-off and the flow of the corresponding water conveying pipe 300. Like this strain check 120 in every minute cell body 115 can all filter respectively and the backwash, when needs carry out the backwash, can only strain check 120 to one at every turn and carry out the backwash, remaining strain check 120 and can also normally filter, and the air supporting device can continuously work, makes backwash, filtration, air supporting go on simultaneously, and this helps improving sewage treatment's efficiency.

In this embodiment, the air flotation tank is preferably a circular tank, and the filtering tank is correspondingly configured to be circular or annular, and the circular or annular structure occupies the smallest area compared to other shapes when the volumes are the same, in conjunction with fig. 3, at this time, the sub-tank bodies 115 are fan-shaped or fan-annular, and these sub-tank bodies 115 are arranged around a central circumference to form the circular or annular filtering tank 110.

As shown in fig. 3, each filter cell preferably employs a V-shaped filter structure. Each filter cell 120 includes two distribution weirs 121 for water inflow, a drain channel 122 for discharging backwash wastewater, a gas-water distribution channel 123 for water discharge and backwash steam and water inflow, and two filter material beds 124. The water distribution weir 121, the water discharge channel 122 and the air water distribution channel 123 are all in the shape of a long-strip groove and are all arranged along the radial direction of the cell body 115. The two water distribution weirs 121 are respectively arranged on the radial side walls of the corresponding sides of the corresponding water distribution tank body 115, the cross sections of the water distribution weirs 121 are V-shaped, a plurality of water distribution small holes 128 are arranged on the side walls opposite to the two water distribution weirs 121, namely the side walls facing the inside of the corresponding water distribution tank body 115, and the water distribution small holes 128 are uniformly arranged in a row along the length direction of the water distribution weirs 121. The gas-water distribution channel 123 is located between the two water distribution weirs 121 and is fixedly arranged at the bottom of the filtering tank 110, and the drainage channel 122 is fixedly arranged above the gas-water distribution channel 123. The top of each of the distribution weir 121 and the drain channel 122 is open and the top surface of the distribution weir 121 is higher than the top surface of the drain channel 122. The air-water distribution channel 123 and the drainage channel 122 divide the filter grid 120 into two filter areas separated from each other, and filter material beds 124 are respectively arranged in the two filter areas and divide the corresponding filter areas into an upper part and a lower part, wherein the area above the filter material beds is a raw water area 129, and the area below the filter material beds is a water purification area 125. The filter material bed 124 comprises a filter plate and filter materials, the filter plate is horizontally and fixedly arranged on the wall of the filter tank 110, a plurality of filter caps are uniformly arranged on the filter plate, the filter materials are sand materials and are uniformly paved on the filter plate, the filter caps allow water to pass through and do not allow the filter materials to pass through, and the upper surface of the filter materials is lower than the top surface of the drainage channel 122 and the water distribution pores 128 of the water distribution weir 121. The outer circumferences of the water distribution weir 121, the water discharge channel 122 and the gas water distribution channel 123 are fixedly connected with the outer circumference of the separation tank body in a sealing manner, and as shown in fig. 1 and 4, the outer circumferential wall of the separation tank body 115 is provided with a gas inlet 111, a clean water port 112 and a sewage outlet 113. The drain 113 is communicated with the drainage channel 122, the drainage channel 122 and the gas distribution channel 123 are separated by the inclined plate 130, one end of the inclined plate 130 close to the wall of the filter tank is lower, and the bottom end of the drain is flush with the lower end of the inclined plate, so that the sewage in the drainage channel 122 can be drained conveniently. The air-water distribution channel 123 is integrally closed, the air inlet 111 and the water purification port 112 are respectively arranged corresponding to the positions of the air-water distribution channel, the air-water distribution channel 123 is communicated with the outside of the filter tank only through the air inlet 111 and the water purification port 112, the side wall of the air-water distribution channel 123 is provided with a plurality of air distribution holes 126 and water distribution holes 127 which are communicated with the water purification area 125 and the inside of the air-water distribution channel 123, the air distribution holes 126 are arranged in a plurality and are uniformly distributed in a row along the length direction of the air-water distribution channel 123, the air distribution holes 126 are arranged at the top of the side wall of the air-water distribution channel 123, the water distribution holes 127 are also arranged in a plurality and are uniformly distributed in a. The filter lattice forms the structure of the V-shaped filter chamber, and the V-shaped filter chamber has the advantages of good filtering effect, high efficiency, large treatment flow and convenient back flushing. In use, water treated by the floatation tank 200 flows into the water distribution weir 121 through the water pipe 300, water in the water distribution weir 121 flows out from the upper end opening and the water distribution small holes 128 and then enters the raw water region 129, water in the raw water region 129 enters the water purification region 125 after being filtered by the filter material bed 124, and water in the water purification region 125 enters the air-water distribution channel 123 through the water distribution holes 127 and then flows out of the filter tank 110 through the water purification port 112. When backwashing is carried out, the valve 301 corresponding to the filter lattice 120 to be backwashed is closed, the water discharging speed in the filter lattice 120 is made to be larger than the water inlet speed, after the water in the filter lattice 120 is basically emptied, compressed air is introduced from the air inlet 111 to the air-water distribution channel 123 corresponding to the filter lattice 120, the compressed air enters the water purification area 125 through the air distribution holes 126, backwash water with pressure is introduced from the water purification port 112 to the air-water distribution channel 123, the backwash water enters the water purification area 125 through the water distribution holes 127, after the water purification area 125 is filled with the air-water mixture, the air-water mixture continuously washes the filter bed 124 upwards, the air-water mixture washes dirt out, the water entering the water distribution weir is discharged from the water distribution holes 128 to wash the upper surface of the filter bed 124 under the action of gravity, and meanwhile, the rest of the filter lattices 120 are normally filtered. During backwashing, a small amount of sewage enters the water distribution weir 121 to play a role of flushing the packed bed 124, and all the sewage can be prevented from being concentrated in the rest of the filter lattices 120 at the same time, so that the large treatment pressure on other filter lattices 120 during backwashing can be reduced, and the impact on the filter device caused by the large increase of the sewage amount in a short time can be reduced.

As shown in fig. 2, a circular central channel 116 is preferably arranged at the center of the filtering tank 110 coaxially with the filtering tank, and the water pipe 300 and the valve 301 are both arranged in the central channel 116, so that the positions of the water pipe 300 and the valve 300 are relatively centralized, and centralized maintenance and control are convenient. Manholes 117 corresponding to the filter grids 120 one by one are arranged on the side wall of the central channel 116, and a cover body is arranged at the positions of the manholes 117, so that the walking distance required by personnel to enter all the filter grids for overhauling can be reduced.

As shown in fig. 1 and 4, the flotation tank 200 is preferably fixedly disposed right above the filtration tank 110, and the overall floor area of the apparatus can be effectively reduced by adopting the structure in which the flotation tank 200 and the filtration tank 110 are disposed up and down. The other structures of the air flotation device except the air flotation tank 200, such as the air dissolving device and the slag scraping device, can adopt the same structure as that of any existing air flotation device, such as the corresponding structure of the shallow ion air flotation device produced by the Master environmental science and technology company Limited, and the specific structure of the air flotation device is not the invention of the present invention, and the details are not repeated here.

The specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention.

Claims

1. The utility model provides a modular high-efficient deoiling air supporting filtration system, includes air supporting device and filter equipment, and the air supporting device includes air supporting pond (200), its characterized in that: the filtering device comprises a filtering tank (110), the filtering tank (110) comprises at least two sub-tank bodies (115), an independent filtering lattice (120) is formed in each sub-tank body (115), a water inlet of each filtering lattice is communicated with a water purifying and discharging end of the air flotation tank through a water conveying pipe (300), and a valve (301) is arranged on each water conveying pipe (300).

2. The modular high efficiency oil removal air flotation filtration system as set forth in claim 1, wherein: the filtering tank (110) is circular or annular, each sub-tank body (115) is fan-shaped or fan-annular, and each sub-tank body (115) is distributed along the circumference by taking the axis of the filtering tank (110) as the center.

3. The modular high efficiency oil removal air flotation filtration system as set forth in claim 2, wherein: the air floatation tank (200) is circular, and the air floatation tank (200) is fixedly arranged right above the filter tank (110).

4. The modular high efficiency oil removal air flotation filtration system as set forth in claim 2, wherein: each filter cell (120) comprises a water distribution weir (121), a water discharge channel (122), an air-water distribution channel (123) and a filter material bed (124), the water distribution weir (121), the water discharge channel (122) and the air-water distribution channel (123) are in a groove shape, two ends of the water distribution channel are fixedly connected with the inner wall of the filter tank in a sealing way, the air-water distribution channel (123) and the water discharge channel are arranged up and down and are isolated by a partition plate, the air-water distribution channel (123) is fixedly arranged at the bottom of the filter tank (110), the water discharge channel (122) is fixedly arranged above the air-water distribution channel (123), the air-water distribution channel (123) is integrally closed, the tops of the water distribution weir (121) and the water discharge channel (122) are open, the top surface of the water distribution weir (121) is higher than that of the water discharge channel (122), the cross section of the water distribution weir (121) is in a V shape, the air-water distribution channel (123) and the water discharge channel (122) and the water distribution, the filter material bed (124) divides a filtering area into a raw water area (129) and a water purification area (125) which are separated from each other from top to bottom, a gas distribution hole (126) and a water distribution hole (127) which are communicated with the water purification area (125) and the gas distribution channel (123) are arranged on the side wall of the gas-water distribution channel (123), a sewage discharge port (113) communicated with the inside of the water drainage channel, a gas inlet (111) communicated with the inside of the gas-water distribution channel (123), a water purification port (112) and a water inlet (114) communicated with the inside of the water distribution weir (121) are arranged on the circumferential side wall of the water distribution tank body (.

5. The modular high efficiency oil removal air flotation filtration system as set forth in claim 4, wherein: the water distribution weir (121), the water discharge channel (122) and the gas water distribution channel (123) are all long strips and are arranged along the radial direction of the filter tank (110).

6. The modular high efficiency oil removal air flotation filtration system as set forth in claim 4, wherein: the water distribution weirs (121) are provided with two, and the drainage channel (122) and the air water distribution channel (123) are positioned between the two water distribution weirs (121).

7. The modular high efficiency oil removal air flotation filtration system as set forth in claim 2, wherein: a circular central channel (116) coaxial with the filtering tank (110) is arranged on the inner side of each split tank, and a water conveying pipe (300) is arranged in the central channel (116).

8. The modular high efficiency oil removal air flotation filtration system as set forth in claim 7, wherein: manholes corresponding to the filter grids (120) one by one are arranged on the side wall of the central channel (116).

9. The modular high efficiency oil removal air flotation filtration system as set forth in claim 1, wherein: all the filter lattices (120) are the same, and all the sub-tank bodies (115) are the same.