CN219907293U - Filtering and air-floating integrated machine - Google Patents

Abstract

The utility model provides a filtering and air-floating integrated machine, relates to the technical field of sewage purification, and mainly aims to solve the technical problems of large occupied area, low space utilization rate, unstable water quality of effluent and easy sludge sinking at the bottom of water purifying equipment in the prior art. The filtering and air-floating integrated machine comprises a machine body, wherein a flocculation area, a purification area and a clear water area are separated in the machine body through a partition board; the purification zone comprises an air flotation separation zone and a filtration adsorption zone, and the filtration adsorption zone is positioned below the air flotation separation zone; a filtering component and a water collecting pipe are arranged in the filtering adsorption area, the water collecting pipe is positioned below the filtering component, one end of the water collecting pipe is positioned in the filtering adsorption area, and the other end of the water collecting pipe is communicated with the clear water area; the water treated by the flocculation zone can flow into the filtering adsorption zone through the air floatation separation zone and flow into the clear water zone through the water collecting pipe.

Description

Filtering and air-floating integrated machine

Technical Field

The utility model relates to the technical field of sewage purification, in particular to a filtering and air-floating integrated machine.

Background

The existing air floatation method is a process for realizing forced floating of the floccules and achieving solid-liquid separation by adhering the micro-bubbles generated in water to polluted particles in the water and leading the density of the whole floccules to be lower than that of the water by virtue of the lower density of the bubbles. However, in actual operation, the treatment method has the defects that the liquid level fluctuates, so that the scum removing effect is unstable, sediment is accumulated in the tank, suspended matters are not thoroughly removed, and the like. The existing filtering method is to intercept or adsorb particles on the surface by means of filter materials, is suitable for advanced treatment of water supply or sewage, has good water quality of effluent, but has low sewage containing amount and frequent backwashing.

The existing water purifying equipment for sewage treatment by utilizing an air floatation filter generally comprises an air floatation area and a filtering area which are arranged in parallel and respectively operate according to the principles of an air floatation method and a filtering method. The structure can lead to lower space utilization rate of equipment, and simultaneously has the problems of large equipment occupation area, low treatment efficiency, complex pipelines and complicated operation control.

In order to solve the above problems, the occupied area of the apparatus is reduced, and a new water purifying apparatus is required to be developed.

Disclosure of Invention

The utility model aims to provide a filtering and air-floating integrated machine so as to solve the technical problems of large occupied area, low treatment efficiency, complex pipelines, complicated operation control and the like of water purifying equipment in the prior art. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a filtering and air-floating integrated machine which comprises a machine body, wherein a flocculation area, a purification area and a clear water area are arranged in the machine body in a separated mode through a partition board; the purification zone comprises an air flotation separation zone and a filtration adsorption zone, and the filtration adsorption zone is positioned below the air flotation separation zone; a filtering component and a water collecting pipe are arranged in the filtering adsorption area, the water collecting pipe is positioned below the filtering component, one end of the water collecting pipe is positioned in the filtering adsorption area, and the other end of the water collecting pipe is communicated with the clear water area; the water treated by the flocculation zone can flow into the filtering and adsorbing zone through the air floatation separation zone and flow into the clear water zone through the water collecting pipe.

Because the air flotation separation zone and the filtering and adsorbing zone are arranged up and down, the effective utilization of the upper space of the filtering and adsorbing zone can be realized, so that the space utilization rate of equipment is improved, the occupied area of the equipment is reduced, and the water collecting pipe positioned in the filtering and adsorbing zone can be used for guiding water treated by the air flotation separation zone and the filtering and adsorbing zone to be led into a clear water zone, so that the sewage purifying treatment can be realized efficiently and conveniently. In addition, the defects of the independent air flotation separation zone and the filtering adsorption zone can be overcome effectively by the up-down arrangement mode, so that a better sewage purifying effect is achieved.

On the basis of the technical scheme, the utility model can be improved as follows.

As a further development of the utility model, the filter element is formed by a filter material.

As a further improvement of the utility model, the filter material comprises at least one of quartz sand, coal blocks, fiber filter materials and activated carbon.

The different filter materials have different adsorption properties, and suspended matters and organic matters in the sewage can be removed in a targeted manner. When in actual use, the types and arrangement modes of the filter materials can be flexibly adjusted according to the property of sewage.

As a further improvement of the utility model, a slag discharge groove is arranged between the air flotation separation zone and the clear water zone, and an opening is arranged at the upper end of the slag discharge groove; the scum scraping component is arranged in the air flotation separation zone, and can scrape scum on the liquid level of the air flotation separation zone into the scum discharge groove through the opening.

At this time, the scum in the air-float separation zone can be pushed to the slag discharge groove from the upper surface of the air-float separation zone under the action of the scum scraping component and falls into the slag discharge groove through the opening.

As a further improvement of the present utility model, the scum scraping assembly comprises two rotating wheels, a conveyor belt and a driving unit, wherein the two rotating wheels are horizontally arranged above the air flotation separation zone, the conveyor belt is sleeved on the two rotating wheels, and when the driving unit drives at least one rotating wheel to rotate, the conveyor belt can rotate along with the rotating wheels; the outer surface of the conveyor belt is fixedly provided with scum scrapers, the number of the scum scrapers is multiple, and when the conveyor belt rotates, the scum scrapers can rotate along with the conveyor belt and scrape scum into the scum discharge groove.

When the floating slag scraper is used, the conveying belt and the floating slag scraper on the conveying belt can normally operate along with the driving of the driving unit, so that floating matters floating on the liquid level of the air flotation separation zone can be effectively scraped into the slag discharge groove.

As a further improvement of the utility model, a contact zone is also provided in the purification zone, through which liquid can flow into the contact zone and through which liquid can flow into the air flotation separation zone.

In the process, the contact area can treat sewage in the flocculation area, so that scum is easier to generate, and the water purification efficiency is improved.

As a further improvement of the utility model, a liquid level meter is arranged in the purifying zone.

The liquid level gauge can be used for detecting the liquid level height in the purifying area so as to prevent the liquid level from being too high or too low and affecting the purifying effect.

As a further improvement of the utility model, the contact area is separated from the air flotation separation area and the filtering and adsorbing area by a drainage plate, the lower part of the drainage plate is in contact with the machine body, the upper part of the drainage plate is lower than the liquid level and higher than the filtering and adsorbing area, and the liquid in the contact area flows into the air flotation separation area through the drainage plate; an aeration releaser is arranged at the contact area, and water in the flocculation area and fluid released by the aeration releaser flow into the air flotation separation area after being mixed.

The drainage plate can be used for realizing the separation of the contact area and the filtering and adsorbing area and simultaneously ensuring the communication of the air floatation separation areas of the contact area; under the action of the aeration releaser, the liquid flowing into the contact area can be fully contacted with the gas, so that the effect of stirring the liquid can be realized, and the effect of preventing suspended matters from sinking can be also realized.

As a further improvement of the utility model, the machine body is also provided with a dissolved air tank; the clear water area is connected with the dissolved air tank through a water return pipe, and the dissolved air tank is connected with the aeration releaser through a return pipe.

Under the action of the water return pipe and the return pipe, water flow can be mixed into high-pressure liquid through the dissolved air tank and released through the return pipe at the aeration releaser, thereby facilitating scum formation.

As a further improvement of the utility model, a water outlet pipe is arranged between the clean water area and the filtering and adsorbing area, and the water outlet pipe is communicated with the water collecting pipe; and a constant liquid level control valve is arranged on the water outlet pipe.

The constant liquid level control valve can be communicated with the liquid level meter through corresponding control equipment, so that the liquid level height in the purification area is effectively controlled by controlling the opening and closing of the constant liquid level control valve, and the stable air floatation deslagging effect is ensured.

As a further improvement of the utility model, the water outlet pipe is also connected with a backwash water pipe and a backwash air pipe, the backwash water pipe is provided with a backwash water valve, and the backwash air pipe is provided with a backwash air valve.

The device is matched with each other, and the backwashing treatment of the filtering and air-floating integrated machine can be realized.

As a further improvement of the utility model, a water outlet area communicated with the clear water area is also arranged in the machine body, and the clear water area and the water outlet area are separated by a water outlet weir; and water in the clear water area can be discharged into the water outlet area through the water outlet weir.

At this time, the water outlet weir and the clean water area can have a certain steady flow effect, thereby ensuring the relatively stable flow rate of the water discharged from the water outlet area.

Compared with the prior art, the filtering and air-floating integrated machine provided by the preferred embodiment of the utility model has the advantages that the filtering and adsorbing area is arranged below the air-floating separation area in a mode of cooperatively using the air-floating separation area and the filtering and adsorbing area, so that the water to be purified is filtered, adsorbed and air-floating treated at the same time, the utilization rate of the device is fully excavated, the occupied area is reduced, the treatment efficiency is improved, and the water quality obtained by treatment is better; in addition, the liquid level meter and the constant liquid level control valve are matched with each other, so that the liquid level in the purifying area can be stabilized, and the scum removing effect is prevented from being influenced by liquid level fluctuation.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a filtration and air flotation machine of the present utility model;

FIG. 2 is a cross-sectional view of the filtering air-floatation all-in-one machine of the present utility model;

FIG. 3 is a schematic diagram of the purification process of the filtering and air-floating integrated machine of the utility model;

fig. 4 is a schematic diagram of a backwashing process of the filtering and air-floating integrated machine.

In the figure: 10. a body; 101. an access opening; 1. a flocculation zone; 11. a water inlet valve; 12. a stirrer; 2. a purification zone; 21. a contact region; 211. an aeration releaser; 22. an air floatation separation zone; 221. a scum scraping assembly; 23. filtering and adsorbing area; 231. a filter member; 232. a water collecting pipe; 3. a clear water zone; 31. a water return pipe; 4. a slag discharge groove; 41. an opening; 42. a slag discharge port; 5. a liquid level gauge; 6. a drainage plate; 7. a dissolved air tank; 71. a return pipe; 72. a recycling pump; 8. a water outlet pipe; 81. a constant liquid level control valve; 82. backwashing the water pipe; 83. backwashing the air pipe; 84. backwashing a water valve; 85. backwashing an air valve; 9. a water outlet area; 91. and a water outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.

The utility model provides a filtering and air-floating integrated machine, which comprises a shell-shaped machine body 10, wherein the interior of the machine body 10 is divided by a partition plate to form a flocculation zone 1, a purification zone 2 and a clear water zone 3, as shown in figure 1; wherein the flocculation zone 1 is provided with a water inlet valve 11 for sewage to be treated to flow in, the lower end of a partition plate positioned between the flocculation zone 1 and the purification zone 2 is provided with a through hole for communicating the flocculation zone 1 and the purification zone 2, and sewage positioned in the flocculation zone 1 can flow into the purification zone 2 through the through hole; similarly, a corresponding structure for water to pass through is also arranged between the purification area 2 and the clear water area 3, and a structure for discharging the treated liquid is arranged on the clear water area 3.

Specifically, the flocculation area 1 includes, in addition to the water inlet valve 11, two agitators 12, and the two agitators 12 can mix and agitate the liquid flowing into the flocculation area 1, so that flocculate is formed in the sewage.

In addition, in order to facilitate maintenance and overhaul of the filtering and air-floating integrated machine, the flocculation zone 1 and the purification zone 2 are both provided with an overhaul port 101.

The structure of the above-described purification zone 2 will be specifically described as follows:

the purifying zone 2 is mainly used for treating sewage and comprises a contact zone 21, an air flotation separation zone 22 and a filtering adsorption zone 23, wherein the contact zone 21 is arranged close to the flocculation zone 1 and is communicated with the flocculation zone 1 through the through holes, and the air flotation separation zone 22 and the filtering adsorption zone 23 are arranged on the other side of the contact zone 21 and are arranged up and down, and are communicated at the moment.

Because the air flotation separation zone 22 and the filtration adsorption zone 23 are arranged up and down, the effective utilization of the upper space of the filtration adsorption zone 23 can be realized, thereby improving the space utilization rate of equipment, reducing the occupied area of the equipment and realizing the purification treatment of sewage with high efficiency and convenience.

In order to drain the water in the purification zone 2, in the present embodiment, a filter member 231 and a water collecting pipe 232 are provided in the filter adsorption zone 23, wherein the water collecting pipe 232 is located below the filter member 231, and one end thereof is located in the filter adsorption zone 23, and the other end thereof can communicate with the clean water zone 3. The water treated by the flocculation zone 1 can enter the filtering and adsorbing zone 23 from the air flotation separation zone 22 and then flow into the clean water zone 3 through the water collecting pipe 232.

Specifically, the filter member 231 is made of a filter material.

In this embodiment, the filter material includes at least one of quartz sand, coal, fiber filter material, and activated carbon.

The different filter materials have different adsorption properties, and suspended matters and organic matters in the sewage can be removed in a targeted manner. When in actual use, the types and arrangement modes of the filter materials can be flexibly adjusted according to the property of sewage. In general, different types of case filter materials are selected to be sequentially layered, as shown in fig. 2.

The water collecting pipe 232 is positioned below the filtering member 231. In this embodiment, a supporting layer is disposed below the filter member 231, and the water collecting pipe 232 is disposed in the supporting layer.

Specifically, the above-described water collecting pipe 232 has a structure including a main water collecting pipe arranged in the longitudinal direction of the purification zone 2 and a branch water collecting pipe arranged in the width direction of the purification zone 2, as shown in fig. 1. The water collecting branch pipes are arranged in a plurality of parallel manner, and a plurality of water inlet holes for water inflow are formed in any one water collecting branch pipe. The main water collecting pipe is connected with all the branch water collecting pipes, one end of the main water collecting pipe is positioned in the filtering and adsorbing area 23, and the other end of the main water collecting pipe is connected with the clean water area 3.

Generally, the water collection pipe 232 is disposed in a horizontal direction.

As an alternative embodiment, a slag discharging groove 4 is also arranged between the air flotation separation zone 22 and the clear water zone 3, and an opening 41 is arranged at the upper end of the slag discharging groove 4; a scum scraping assembly 221 is arranged in the air-float separation zone 22, and the scum scraping assembly 221 can scrape scum on the liquid surface of the air-float separation zone 22 into the scum groove 4 through the opening 41.

At this time, the dross located in the air-float separation zone 22 can be pushed from the upper surface of the air-float separation zone 22 to the dross discharge groove 4 by the dross scraping assembly 221 and falls into the dross discharge groove 4 through the opening 41.

It should be noted that, at this time, the opening 41 of the slag discharging groove 4 is an inclined surface structure, and the height of the end of the inclined surface structure close to the air-float separation zone 22 is lower and does not exceed the liquid level of the air-float separation zone 22, so as to ensure that the floating objects on the liquid level of the air-float separation zone 22 can enter the slag discharging groove 4 through the inclined surface under the action of the scum scraping component 221. In addition, one side of the slag discharging groove 4 can be connected with the machine body 10, a slag discharging hole 42 is arranged at the slag discharging groove, and dirt in the slag discharging groove 4 can be discharged through the slag discharging hole 42.

Specifically, the overall structure of the scum scraping assembly 221 is similar to a conveying system, and the scum scraping assembly comprises two rotating wheels, a conveying belt and a driving unit, wherein the two rotating wheels are horizontally arranged above the air flotation separation zone 22, the conveying belt is sleeved on the two rotating wheels, and when the driving unit drives at least one rotating wheel to rotate, the conveying belt can rotate along with the rotating wheels; the outer surface of the conveyor belt is fixedly provided with a plurality of scum scrapers, and when the conveyor belt rotates, the scum scrapers can rotate along with the conveyor belt and scrape scum into the scum groove 4.

When the floating slag scraper device is used, the conveying belt and the floating slag scraper blade on the conveying belt can normally operate along with the driving of the driving unit, so that floating matters floating on the liquid surface of the air flotation separation zone 22 can be effectively scraped into the slag discharging groove 4.

As an alternative embodiment, a level gauge 5 is provided in the purification zone 2.

Specifically, as shown in fig. 2, the above-mentioned level gauge 5 is located in the contact area 21.

In this and related embodiments, the level gauge 5 may be provided as an ultrasonic level gauge. The liquid level in the purifying zone 2 can be obtained in real time through the liquid level meter 5, so that an operator can conveniently adjust the liquid level in the purifying zone 2 by controlling the opening and closing of the related valve, the liquid level can be kept constant, and the influence on the purifying effect due to overhigh or overlow liquid level is avoided.

As an alternative embodiment, the contact area 21 is separated from the air flotation separation area 22 and the filtering and adsorbing area 23 by the flow guiding plate 6, the lower part of the flow guiding plate 6 is contacted with the machine body 10, the upper part is lower than the liquid level and higher than the filtering and adsorbing area 23, and the liquid in the contact area 21 flows into the air flotation separation area 22 through the flow guiding plate 6; an aeration releaser 211 is arranged at the contact area 21, and the sewage in the flocculation area 1 and the fluid released by the aeration releaser 211 are mixed and then flow into the air floatation separation area 22.

The drainage plate 6 can be used for realizing the separation of the contact area 21 and the filtering and adsorbing area 23, and simultaneously ensuring that the contact area 21 is communicated with the air flotation separation area 22; the liquid flowing into the contact area 21 can be sufficiently contacted with the gas by the aeration releaser 211, and not only can the effect of agitating the liquid be achieved, but also the effect of preventing the suspended matter from sinking can be achieved.

Specifically, the flow guiding plate 6 has a partially bent structure toward the air-floating separation zone 22, and the upper end thereof is located between the air-floating separation zone 22 and the filtering and adsorbing zone 23 (i.e. the upper end of the flow guiding plate 6 is not higher than the liquid level of the air-floating separation zone 22).

In addition, the aeration releaser 211 is connected to a dissolved air tank 7 which is in communication with a pipeline capable of inputting high-pressure gas through a return pipe 71. In addition, a water return pipe 31 is arranged outside the clean water area 3, and the water return pipe 31 is respectively connected with the clean water area 3 and the dissolved air tank 7. In use, the gas in the dissolved air tank 7 can be mixed with water in the return pipe 31 and delivered into the aeration releaser 211 via the return pipe 71.

Specifically, a recycle pump 72 is further provided between the return pipe 31 and the dissolved air tank 7. Under the action of the recycle pump 72, the water returned through the water return pipe 31 can be mixed with the gas in the dissolved gas tank 7 and form high-pressure water in which a large amount of gas is dissolved. The gas-liquid mixture is released in the contact area 21 by the aeration releaser 211, and then is mixed with sewage to generate a large amount of micro bubbles, so that suspended matters, phosphate particles, coagulant aid and the like in the water are coagulated together to form floccules and float upwards rapidly. The floc, after entering the air flotation separation zone 22, floats to the liquid surface forming a layer of scum. The scum can be scraped into the slag discharge groove 4.

It should be noted that the above-described dissolved air tank 7 may be disposed inside the machine body 10 or may be disposed outside the machine body 10.

In order to facilitate the drainage of the treated water into the clean water zone 3, in this embodiment, a water outlet pipe 8 is arranged between the clean water zone 3 and the filtering and adsorbing zone 23, and the water outlet pipe 8 is communicated with a water collecting pipe 232; the water outlet pipe 8 is provided with a constant liquid level control valve 81.

The outlet pipe 8 can be connected with the main water collecting pipe (or the main water collecting pipe and the main water collecting pipe are of an integrated structure). A constant level control valve 81 on the outlet pipe 8 can control whether the liquid flows into the clear water zone 3 by means of a switch.

In actual use, the constant level control valve 81 can be connected to a control assembly, which can likewise be connected to the level gauge 5. The control component can control the switch of the constant liquid level control valve 81 according to the liquid level detected by the liquid level meter 5, thereby effectively controlling the liquid level in the purification zone 2 and ensuring the stable air floatation deslagging effect.

The above-mentioned control component is the prior art, and is not described herein again.

As an alternative embodiment, a water outlet area 9 communicated with the clean water area 3 is also arranged in the machine body 10, and the clean water area 3 and the water outlet area 9 are separated by a water outlet weir; water located in the clear water zone 3 can drain through the weir into the discharge zone 9.

At this time, the water outlet weir and the clean water zone 3 can have a certain steady flow effect, thereby ensuring a relatively stable flow rate of water discharged through the water outlet zone 9.

As an alternative embodiment, the water outlet pipe 8 is also connected with a backwash water pipe 82 and a backwash air pipe 83, the backwash water pipe 82 is provided with a backwash water valve 84, and the backwash air pipe 83 is provided with a backwash air valve 85.

The device is matched with each other, and the backwashing treatment of the filtering and air-floating integrated machine can be realized.

When the filtering and air-floating integrated machine is used for purifying sewage, the flow direction of water flow is shown in fig. 3. The sewage to be treated flows into the flocculation zone 1 through the water inlet valve 11, and when in use, a proper amount of flocculating agent, such as a dephosphorizing agent, a coagulant aid and the like, can be added into the flocculation zone 1 in order to enhance the treatment effect. The flocculation zone 1 is internally provided with a stirrer 12, and under the action of the stirrer 12, the dephosphorizing agent can be mixed with phosphate in water to react to form phosphate particles. Subsequently, the sewage flows into the contact zone 21 of the purification zone 2 and is mixed with high-pressure water in which a large amount of gas is dissolved. Under the action of the bubbles, suspended matter, phosphate particles, coagulant aid and the like in the water are coagulated together and float to the liquid surface of the air-float separation zone 22 to form a scum layer. The above-mentioned scum layer is scraped into the slag bath 4 by the scum scraping assembly 221 and discharged through the slag discharge port 42. The remaining impurities can be adsorbed and filtered by the filtering member 231. The water obtained after the treatment can be conveyed into the clean water area 3 through the water collecting pipe 232 and the water outlet pipe 8 and discharged through the water outlet 91 positioned in the water outlet area 9.

When the filtering and air-floating integrated machine is backwashed, the flow direction of water flow is shown in fig. 4. At this time, it is necessary to control the opening and closing of the constant level control valve 81 according to the level of the liquid in the purification zone 2. When the opening degree of the constant liquid level control valve 81 reaches the maximum or the running time exceeds 7d, the water inlet valve 11 and the constant liquid level control valve 81 are sequentially closed, the backwash air valve 85 is sequentially opened to run for 2-3min, the backwash water valve 84 is opened to run for 6-8min, and at this time, the equipment can be flushed with air and water (the air source and the water source are independently arranged and are common knowledge, and are not repeated here). Impurities generated after backwashing can be discharged into the slag discharge groove 4 and discharged through the slag discharge port 42.

Compared with the traditional water purifying equipment, the filtering and air-floating integrated machine can effectively remove impurities in water in a filtering and air-floating mode, meanwhile, the problem that the water collecting pipe 232 is easy to produce water and carry mud (namely carry impurities) in a traditional treatment mode is solved, and the water quality of the discharged water is effectively improved. The constant liquid level control valve 81 and the liquid level meter 5 in the machine body 10 can play a role in stabilizing the liquid level, not only can ensure the scum scraping effect of the air flotation separation zone 22, but also can place the floc to be disintegrated and re-enter the water, thereby effectively improving the water quality of the discharged water. Most importantly, the scheme also has a backwashing function, and the filtering adsorption zone 23 can be effectively cleaned by backwashing the purification zone 2, so that suspended matters are prevented from reentering clear water, the water quality of the effluent is more stable, and the better water quality can be maintained.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. The filtering and air-floating integrated machine is characterized by comprising a machine body, wherein a flocculation area, a purification area and a clear water area are arranged in the machine body in a separated mode through a partition board, the purification area comprises an air-floating separation area and a filtering and adsorbing area, and the filtering and adsorbing area is positioned below the air-floating separation area;

a filtering component and a water collecting pipe are arranged in the filtering adsorption area, the water collecting pipe is positioned below the filtering component, one end of the water collecting pipe is positioned in the filtering adsorption area, and the other end of the water collecting pipe is communicated with the clear water area;

the water treated by the flocculation zone can flow into the filtering and adsorbing zone through the air floatation separation zone and flow into the clear water zone through the water collecting pipe.

2. The filtration and air flotation machine of claim 1 wherein the filter member is comprised of a filter material.

3. The filtering and air-floating integrated machine according to claim 1, wherein a slag discharging groove is further arranged between the air-floating separation zone and the clear water zone, and an opening is formed in the upper end of the slag discharging groove;

the scum scraping component is arranged in the air flotation separation zone, and can scrape scum on the liquid level of the air flotation separation zone into the scum discharge groove through the opening.

4. The filtration and air flotation all-in-one machine according to claim 1, wherein a contact zone is further provided in the purification zone, and liquid can flow into the contact zone through the flocculation zone and into the air flotation separation zone through the contact zone.

5. The filtration and air flotation machine of claim 1, wherein the purification zone is provided with a level gauge.

6. The filtration and air flotation machine of claim 4 wherein the contact zone is separated from the air flotation separation zone and the filtration and adsorption zone by a drainage plate;

the lower part of the drainage plate is connected with the machine body, the upper part of the drainage plate is lower than the liquid level and higher than the filtering and adsorbing area, and the liquid in the contact area flows into the air flotation separation area through the drainage plate;

an aeration releaser is arranged at the contact area, and water in the flocculation area and fluid released by the aeration releaser flow into the air flotation separation area after being mixed.

7. The filtering and air-floating integrated machine according to claim 6, wherein the machine body is further provided with a dissolved air tank;

the clear water area is connected with the dissolved air tank through a water return pipe, and the dissolved air tank is connected with the aeration releaser through a return pipe.

8. The filtration and air flotation all-in-one machine according to any one of claims 1 to 7, wherein a water outlet pipe is arranged between the clean water zone and the filtration and adsorption zone, and is communicated with the water collecting pipe; and a constant liquid level control valve is arranged on the water outlet pipe.

9. The filtering and air-floating integrated machine according to claim 8, wherein the water outlet pipe is further connected with a backwash water pipe and a backwash air pipe, the backwash water pipe is provided with a backwash water valve, and the backwash air pipe is provided with a backwash air valve.