CN213326821U

CN213326821U - High-efficient deoiling air supporting filter equipment

Info

Publication number: CN213326821U
Application number: CN202021939002.4U
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: 2021-06-01
Anticipated expiration: 2030-09-08

Abstract

The utility model aims at solving the problem that the existing air-flotation filtering equipment can not simultaneously satisfy the small occupied area and the strong filtering capacity, and provides a high-efficiency oil-removing air-flotation filtering device which comprises an air-flotation device and a filtering device, wherein the air-flotation device comprises an air-flotation tank, the filtering device comprises a filtering tank, the filtering tank is positioned under the air-flotation tank, the water purifying outlet end of the air-flotation tank is communicated with the water inlet end of the filtering tank, the side wall of the filtering tank is provided with an air inlet, a water purifying opening and a sewage draining opening, a filtering lattice is arranged in the filtering tank, the filtering lattice comprises a water distribution weir, a water discharging channel, a steam water distribution channel and a filtering material bed, the water discharging channel is communicated with the sewage draining opening, the steam water distribution channel is communicated with the air inlet and the water purifying opening, a filtering area is arranged between the steam water distribution channel and the water distribution weir, the filtering material bed divides the filtering area into, the utility model discloses can satisfy simultaneously that take up an area of for a short time and the stronger two-way requirement of filter capacity.

Description

High-efficient deoiling air supporting filter equipment

Technical Field

The utility model relates to a sea water filtration field, in particular to high-efficient deoiling air supporting filter equipment.

Background

The air floating process adopts the air floating method in water treatment to form highly dispersed micro bubbles 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 the bubbles, flocs with apparent density smaller than that of the water are formed and float to the water surface, a scum layer is scraped, and solid-liquid or liquid-liquid separation is realized. The water treated by the air floatation process is often required to be filtered. The air-floating filtering device is provided with a filter screen or a filter layer for filtering in an air-floating tank, 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 devices are directly connected with the filtering device behind the air flotation device, but the structure needs larger occupied area.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a problem that can't satisfy simultaneously that take up an area of for a short time, the filter capacity is strong to current air supporting filtration equipment, provide a high-efficient deoiling air supporting filter equipment.

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

an efficient oil removal air flotation filter device comprises an air flotation device and a filter device, wherein the air flotation device comprises an air flotation tank, the filter device comprises a filter tank, the filter tank is positioned under the air flotation tank, a water purification water outlet end of the air flotation tank is communicated with a water inlet end of the filter tank, an air inlet, a water purification port and a sewage discharge port are arranged on the side wall of the filter tank, a filter lattice is arranged in the filter tank and comprises a water distribution weir, a water discharge channel, a steam water distribution channel and a filter material bed, the water distribution weir, the water discharge channel and the steam water distribution channel are groove-shaped, the steam water distribution channel is fixedly arranged at the bottom of the filter tank, the water discharge channel is fixedly arranged above the steam water distribution channel and is communicated with the sewage discharge port, the periphery of the steam water distribution channel is closed and is communicated with the air inlet and the water purification port, the top parts of the water distribution weir and the water discharge channel are open, the top surface of the water distribution weir is higher than the top surface, the filter material bed is arranged in the filter area, the filter area is divided into a raw water area and a water purification area which are vertically separated by the filter material bed, and the side wall of the steam-water distribution channel is provided with air distribution holes and water distribution holes which are communicated with the water purification area and the interior of the steam-water distribution channel.

Furthermore, the bottom of the air floatation tank is open and communicated with the filtering tank.

Furthermore, the air floatation tank and the filtering tank are separated from each other, and each water distribution weir is communicated with the water purification outlet end of the air floatation tank through a water delivery pipe.

Furthermore, the filtering tank is provided with at least two filtering grids which are arranged side by side and are separated from each other.

Furthermore, each water pipe is provided with a water conveying valve.

Furthermore, a plurality of water distribution small holes are formed in the side wall of the water distribution weir, and the water distribution small holes are uniformly distributed along the length direction of the water distribution weir.

Furthermore, the filtering tank comprises the sub-tank bodies with the same number as the filtering grids, each filtering grid is correspondingly arranged in one of the sub-tank bodies, and the adjacent sub-tank bodies are detachably and fixedly connected.

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 high-efficient deoiling air supporting filter equipment has independent air supporting device and filter equipment, wherein the air supporting pond sets up can effectual reduction equipment holistic area in the top of filtering ponds, filter equipment includes the filtering ponds, the filtering ponds have the filter check of V type filtering pond structure, filter the check including joining in marriage water weir, soda distribution canal and setting up drainage canal and the filter material bed in soda distribution canal top, the filter material bed sets up in filtering area and separates into the raw water district and the water purification district that separates from top to bottom with filtering area, this kind of filter equipment filter effect is good, efficient, the treatment flow is big, the back flush of being convenient for, to sum up, the utility model discloses a structure can satisfy simultaneously and take up an area of for a short time and two strong aspect requirements of filter capacity.

Drawings

FIG. 1 is a schematic structural view of the high-efficiency oil-removing air-flotation filter device of example 1 (the structure of the air-flotation device except for an air-flotation tank is not shown);

FIG. 2 is a schematic cross-sectional view of a filter cell of example 1;

FIG. 3 is a schematic sectional view of the water discharge channel and the steam water distribution channel in example 1;

fig. 4 is a schematic structural view of the high-efficiency oil-removing air-flotation filter device of example 2 (the structure of the air-flotation device except for the air-flotation tank is not shown).

Reference number legend, 100, filter apparatus; 110. a 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; 120. filtering grids; 121. a water distribution weir; 122. a drainage channel; 123. a steam-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; 200. an air floatation tank; 300. a water delivery pipe; 301. a water delivery 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.

Example 1: an efficient oil-removing air-floating filter device 100, as shown in fig. 1, comprises an air-floating device and a filter device 100. The filtering apparatus 100 adopts a V-shaped filtering chamber structure, and includes a filtering tank 110, and the filtering tank 110 may be configured in any shape, such as a circle, a rectangle, etc., and in this embodiment, is configured in a rectangle. Knot

Referring to fig. 2, a filter lattice 120 is disposed in the filter tank 110, and the filter lattice 120 includes two water distribution weirs 121 for water inflow, a water discharge channel 122 for discharging backwash wastewater, a steam-water distribution channel 123 for discharging purified water and backwashing steam and water, and two filter material beds 124. The water distribution weir 121, the water discharge channel 122 and the steam-water distribution channel 123 are all in the shape of a long-strip groove and are parallel to each other and arranged along the length direction of the filter tank, in this embodiment, the water distribution weir 121, the water discharge channel 122 and the steam-water distribution channel 123 are parallel to the left and right side walls, and the two ends of the water distribution weir 121, the water discharge channel 122 and the steam-water distribution channel 123 are closed by the front and rear walls of the filter tank 110. The cross section of the water distribution weir 121 is V-shaped, the two water distribution weirs 121 are respectively and fixedly arranged on the left side wall and the right side wall of the filter lattice 120, the steam-water distribution channel 123 is positioned between the two water distribution weirs 121 and is fixedly arranged at the bottom of the filter tank 110, as shown in fig. 3, the drainage channel 122 is fixedly arranged above the steam-water distribution channel 123, the drainage channel 122 and the steam-water distribution channel 123 are vertically separated by an inclined plate, and one end of the inclined plate connected with the front wall is lower. The soda distribution channel 123 is closed, the top of the distribution weir 121 and the drainage channel 122 is open, and the top surface of the distribution weir 121 is higher than that of the drainage channel 122. The steam-water distribution channel 123 and the water discharge channel 122 divide the filter grid 120 into two filter areas separated from each other, two filter material beds 124 are respectively arranged in the two filter areas and divide the corresponding filter areas into two parts separated from each other up and down, wherein the lower part is a water purification area 125, the upper part is a raw water area 129, and the water level of the raw water area 129 can be higher than the opening of the water discharge channel 122 and lower than the water outlet of the water distribution weir. The filter material bed 124 comprises a filter plate and a filter material, 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 material is sand and is uniformly laid on the filter plate, the filter caps allow water to pass through and do not allow the filter material to pass through, and the upper surface of the filter material is lower than the top surface of the drainage channel 122 and the water outlet of the water distribution weir 121. The front wall of the filtering tank 110 is provided with an air inlet 111, a water purifying port 112 and a sewage draining port 113, the air inlet 111 and the water purifying port 112 are arranged at positions corresponding to the steam-water distribution channel 123, so that the steam-water distribution channel 123 is communicated with the air inlet 111 and the water purifying port 112, valves (not shown in the figure) for controlling the on-off of the air inlet 111 and the water purifying port 112 are respectively arranged at the positions, the sewage draining port 113 is arranged at a position corresponding to the water draining channel 122, so that the water draining channel 122 is communicated with the sewage draining port 113, and the sewage draining port 113 is provided with a valve (not shown in the. The left side wall and the right side wall of the steam-water distribution channel 123 are respectively 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 interior of the steam-water distribution channel 123, wherein the air distribution holes 126 are uniformly distributed in a row along the length direction of the steam-water distribution channel 123, the air distribution holes 126 are positioned at the top of the side wall of the steam-water distribution channel 123, the water distribution holes 127 are also provided with a plurality of air distribution holes which are uniformly distributed in a row along the length direction of the steam-water distribution channel 123, and the water distribution holes 127 are positioned at the bottom of. The filtering device 100 with the V-shaped filter chamber structure is provided with the strip-shaped water distribution weirs arranged on the two sides, the water supplementing range is large, the water supplementing is uniform, the efficiency is high, the treatment flow is large, and the steam water distribution channel and the water drainage channel are arranged for facilitating back washing. 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 a rectangular air floating tank 200 is adopted in the embodiment. The floatation tank 200 is fixedly arranged right above the filtering tank 110, and the overall floor area of the device can be effectively reduced by adopting the structure that the floatation tank 200 and the filtering tank 110 are arranged up and down. The bottom wall or the side wall of the flotation tank 200 is provided with a purified water outlet, in this embodiment, the purified water outlet is disposed at a position below the front wall of the flotation tank 200, with reference to fig. 1 and 2, each water distribution weir 121 of the filtration tank 110 is communicated with the purified water outlet through a water pipe 300, and the water pipe 300 is provided with a water delivery valve 301 for controlling the on-off and the flow of the water pipe 300. During filtering, the valves at the air inlet 111 and the sewage outlet 113 are closed, the water delivery valves 301 are opened, water treated by the floatation tank 200 flows into the water distribution weir 121 through the water delivery pipe 300 under the action of gravity, water in the water distribution weir 121 overflows from an upper end opening and then enters the raw water region 129, water in the raw water region 129 passes through the filter material bed 124 under the action of gravity to be filtered and then enters the water purification region 125, and water in the water purification region 125 enters the steam-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 water delivery valve 301 is closed or reduced to enable water in the raw water area 129 and the purified water area 125 to be filtered and discharged gradually, the valves at the air inlet 111 and the sewage discharge outlet 113 are opened, compressed air is introduced into the steam-water distribution channel 123 from the air inlet 111, the compressed air enters the purified water area 125 through the air distribution holes 126, backwashing water is introduced into the steam-water distribution channel 123 from the water purification port 112, the backwashing water enters the purified water area 125 through the water distribution holes 127, air and water in the purified water area 125 wash the filter material bed 124 from bottom to top to flush out dirt in the filter material bed, the sewage level generated by backwashing is higher than the opening of the water discharge channel 122 and then overflows into the water discharge channel 122, and the sewage in the water discharge channel 122 is discharged out of the filter tank 110 through the sewage discharge outlet 113.

Preferably, the filtration tank 110 is provided with at least two filtration compartments 120, and in this embodiment, two filtration compartments are provided. Two strain check 120 and set up side by side and separate each other, and every strains check 120 and can independently filter and the backwash, like this when needing to carry out the backwash, can only strain check 120 to one at every turn and carry out the backwash, and remaining strain check 120 and filter, and the air supporting device need not shut down during the backwash, makes backwash, filtration, air supporting can go on simultaneously, helps improving sewage treatment's efficiency. Preferably, a plurality of water distribution holes 128 are formed in the side wall of the water distribution weir 121, the water distribution holes 128 are uniformly arranged in a row along the length direction of the water distribution weir 121, water in the water distribution weir 121 can flow out from the upper end opening of the water distribution weir 121 and the water distribution holes 128 at the same time, the water distribution holes 128 increase the water outlet point during filtering to facilitate uniform water distribution, the water distribution weir 121 in the backwashing filter grid 120 can reduce the water inlet of the water distribution weir 121 by adjusting the water delivery valve 301 on the water delivery pipe 300 during backwashing, the water can be discharged from the water distribution holes 128 to the upper surface of the backwashing filter bed 124, and a small amount of sewage enters the water distribution weir 121 during backwashing to prevent all the sewage from being simultaneously concentrated into the rest of the filter grids 120, thereby facilitating reduction of the increased treatment pressure of the other filter grids 120 during backwashing and facilitating reduction of the impact of the sewage on the filter device 100.

Preferably, a plurality of sub-tank bodies 115 are adopted to form the filtering tank 110, the number of the sub-tank bodies 115 is the same as that of the filtering grids 120, each filtering grid 120 is correspondingly arranged in one of the sub-tank bodies 115, each filtering grid 120 is separated by the side wall of the sub-tank body 115, and each sub-tank body 115 and each filtering grid 120 are the same, so that the filtering device 100 can be disassembled into a plurality of independent structures, which is beneficial to transportation on one hand and convenient for batch processing and production on the other hand, and the adjacent sub-tank bodies 115 are detachably and fixedly connected.

The other structures such as the container jar and the structure such as mud scraping device except that air supporting pond 200 of air supporting device can adopt the same structure with among the arbitrary air supporting device of current, corresponding structure in the shallow layer ion air supporting device of production of maaste environmental science and technology gmbh for example, because the concrete structure of air supporting device is not the invention of the utility model discloses a point, do not do here and describe in detail.

Example 2: the difference from the embodiment 1 is that, as shown in fig. 4, the flotation tank 200 has no bottom and is directly communicated with the filtration tank 110, and the water body in the flotation tank 200 is communicated with the water body in the filtration tank 110. It should be noted that, during the filtration process, the water distribution weir 121 does not distribute water any more, and when backwashing is required, the water in the air flotation tank 200 and the filtration tank 110 is emptied first, during this process, the speed of water drainage from the water distribution holes 128 by the water distribution weir 121 can be slower than the speed of emptying the filtration tank 110, so that water remains in the water distribution weir after the filtration tank 110 is emptied. The water distribution weir 111 can be emptied at a slower speed than the filter tank 110 by providing a valve at the water distribution holes 128 or by using small diameter water distribution holes 128, and the water retained in the water distribution holes 128 can be drained during backwashing to wash the surface of the filter bed 124.

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 high-efficient deoiling air supporting filter equipment (100), includes air supporting device and filter equipment (100), and the air supporting device includes air supporting pond (200), its characterized in that: the filtering device (100) comprises a filtering tank (110), the filtering tank (110) is positioned under the air floating tank (200), a water purifying outlet end of the air floating tank (200) is communicated with a water inlet end of the filtering tank (110), the side wall of the filtering tank (110) is provided with an air inlet (111), a water purifying port (112) and a sewage draining port (113), a filter lattice (120) is arranged in the filtering tank (110), the filter lattice (120) comprises a water distribution weir (121), a water draining channel (122), a steam-water distribution channel (123) and a filter material bed (124), the water distribution weir (121), the water draining channel (122) and the steam-water distribution channel (123) are groove-shaped, the steam-water distribution channel (123) is fixedly arranged at the bottom of the filtering tank (110), the water draining channel (122) is fixedly arranged above the steam-water distribution channel (123) and communicated with the sewage draining port (113), the periphery of the steam-water distribution channel (123) is sealed and communicated with the air inlet (111), the top of distribution weir (121) and drainage canal (122) is opened and the top surface of distribution weir (121) is higher than the top surface of drainage canal (122), the transversal V type of distribution weir (121), be filtering area between soda distribution canal (123) and drainage canal (122) and the distribution weir (121), filter bed (124) set up in filtering area, filter bed (124) divide into the raw water district (129) and the water purification district (125) that separate from top to bottom filtering area, be provided with on the lateral wall of soda distribution canal (123) and communicate inside distribution hole (126) and the water distribution hole (127) in water purification district (125) and soda distribution canal (123).

2. The high efficiency oil removal air flotation filter device (100) according to claim 1, characterized in that: the bottom of the air floatation tank (200) is open and is communicated with the filter tank (110).

3. The high efficiency oil removal air flotation filter device (100) according to claim 1, characterized in that: the air floatation tank (200) and the filter tank (110) are separated from each other, and each water distribution weir (121) is communicated with the water purification outlet end of the air floatation tank (200) through a water pipe (300).

4. An efficient oil removal air-flotation filter device (100) according to any one of claims 1 to 3, characterized in that: the filtering tank (110) is provided with at least two filtering grids (120), and the filtering grids (120) are arranged side by side and are separated from each other.

5. The high efficiency oil removal air flotation filter device (100) according to claim 4, characterized in that: each water pipe (300) is provided with a water conveying valve (301).

6. The high efficiency oil removal air flotation filter device (100) according to claim 4, characterized in that: the side wall of the water distribution weir (121) is provided with a plurality of water distribution small holes (128), and the water distribution small holes (128) are uniformly distributed along the length direction of the water distribution weir (121).

7. The high efficiency oil removal air flotation filter device (100) according to claim 4, characterized in that: the filtering tank (110) comprises the same number of sub-tank bodies (115) as the filtering grids (120), each filtering grid (120) is correspondingly arranged in one of the sub-tank bodies (115), and adjacent sub-tank bodies (115) are detachably and fixedly connected.

8. The high efficiency oil removal air flotation filter device (100) according to claim 7, characterized in that: all the filter lattices (120) are the same, and all the sub-tank bodies (115) are the same.