CN218909996U

CN218909996U - Multi-effect hybrid air floatation machine

Info

Publication number: CN218909996U
Application number: CN202223275939.8U
Authority: CN
Inventors: 彭朝华; 滕其友; 宋路江; 梁新莲; 彭飞
Original assignee: HEBEI ZHONGKE ENVIRONMENTAL PR
Current assignee: HEBEI ZHONGKE ENVIRONMENTAL PR
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-25
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to the technical field of air flotation machines, and provides a multi-effect mixed air flotation machine which comprises a box body and a dissolved air tank, wherein the interior of the box body is divided into a water inlet cavity, a dissolved air flotation cavity and a water outlet cavity by virtue of a partition plate arranged along the length direction of the box body, the outlet end of a water inlet extends to the bottom in the water inlet cavity, the water outlet is communicated with the water outlet cavity, the outlet end of the dissolved air tank is communicated with the dissolved air flotation cavity, the inlet end of a medicine mixing pipe is simultaneously communicated with the outlet ends of a first medicine adding pipe and a second medicine adding pipe, the outlet end of the medicine mixing pipe is communicated with the inlet end of the water inlet, the inlet end of a connecting pipe between the water inlet cavity and the dissolved air flotation cavity is connected with a third medicine adding pipe and a fourth medicine adding pipe, and the inlet ends of the third medicine adding pipe and the fourth medicine adding pipe extend to the outside of the box body. Solves the problems that the flocculation area and the coagulation area at the front end in the related technology occupy smaller area, so that coagulation is uneven and impurities in sewage can not be completely removed.

Description

Multi-effect hybrid air floatation machine

Technical Field

The utility model relates to the technical field of air floaters, in particular to a multi-effect hybrid air floaters.

Background

The air floatation machine is water treatment equipment which generates a large number of micro bubbles in water by an air dissolving system, enables air to be attached to suspended particles in a highly dispersed micro bubble mode, causes the density to be smaller than that of water, and floats on the water surface by utilizing the buoyancy principle so as to realize solid-liquid separation. The common air floatation machine in the market at present is a dissolved air floatation machine, and the flocculation area and the coagulation area at the front end occupy smaller area, so that coagulation is uneven, impurities in sewage can not be completely removed, and in order to solve the problem, a multi-effect mixed air floatation machine is needed.

Disclosure of Invention

The utility model provides a multi-effect mixed air flotation machine, which solves the problems that the flocculation area and the coagulation area at the front end occupy smaller area, so that coagulation is uneven and impurities in sewage cannot be completely removed in the related art.

The technical scheme of the utility model is as follows: the utility model provides a multiple-effect hybrid air supporting machine, includes the box, and with the dissolved air jar of box intercommunication, box length direction's one end is connected with the water inlet, the other end is connected with the delivery port, the key lies in: the inside of the box body is divided into a water inlet cavity, a dissolved air flotation cavity and a water outlet cavity by virtue of a partition plate arranged along the length direction of the box body, the outlet end of the water inlet extends to the bottom of the water inlet cavity, the water outlet is communicated with the water outlet cavity, the outlet end of the dissolved air flotation tank is communicated with the dissolved air flotation cavity, the air flotation machine further comprises a first medicament adding pipe, a second medicament adding pipe and a mixed medicament pipe, the inlet end of the mixed medicament pipe is simultaneously communicated with the outlet ends of the first medicament adding pipe and the second medicament adding pipe, the outlet end of the mixed medicament pipe is communicated with the inlet end of the water inlet, the water inlet cavity is communicated with the dissolved air flotation cavity, the dissolved air flotation cavity is communicated with the water outlet cavity by virtue of a connecting pipe penetrating the partition plate, and the inlet end of the connecting pipe between the water inlet cavity and the dissolved air flotation cavity is connected with a third medicament adding pipe and a fourth medicament adding pipe, and the inlet ends of the third medicament adding pipe and the fourth medicament adding pipe are all extended to the outside of the box body.

The air floatation machine further comprises a first mud discharging port arranged at the bottom of the box body and communicated with the water inlet cavity, a second mud discharging port arranged at the bottom of the box body and communicated with the dissolved air floatation cavity, and a third mud discharging port arranged at the bottom of the box body and communicated with the water outlet cavity.

The first sludge discharge port, the second sludge discharge port and the third sludge discharge port are all provided with switch valves.

The air supporting machine further comprises a slag scraping mechanism arranged at the top of the box body and located above the water outlet cavity, and a slag collecting groove arranged in the water outlet cavity and located near one end of the water outlet, wherein the upper end face of the slag collecting groove is located above the liquid level in the water outlet cavity, the slag scraping mechanism comprises two supporting shafts arranged along the length direction of the box body, a transmission chain connected between the same ends of the two supporting shafts, a group of scraping plates arranged on each transmission chain, and a driving mechanism connected with at least one supporting shaft, the length directions of the supporting shafts are arranged along the width direction of the box body, and the slag collecting groove is located below the tail end of the transmission chain.

The air flotation machine further comprises a slag scraping inclined plate arranged in the water outlet cavity, the slag scraping inclined plate is positioned below the transmission chain, one end of the slag scraping inclined plate is overlapped with the upper end face of the slag collecting groove, and the other end of the slag scraping inclined plate is inclined downwards.

The air floatation machine further comprises a clear water collecting box arranged on the outer side of the box body and a clear water discharging pipe communicated with the clear water collecting box, wherein the inlet end of the clear water discharging pipe penetrates through the box body to extend into the water outlet cavity, the clear water discharging pipe is located below the slag scraping inclined plate, and the inlet end of the water outlet is communicated with the clear water collecting box.

The clear water discharge pipe comprises a first longitudinal pipe arranged in the water outlet cavity, a first transverse pipe communicated with the end part of the first longitudinal pipe, and a second transverse pipe with the lower end communicated with the middle part of the first longitudinal pipe and the upper end communicated with the clear water collecting box.

The air floatation machine further comprises a stair arranged on the outer side of the box body, and the length direction of the stair is the same as the length direction of the box body.

The air floatation machine further comprises a releaser arranged at the bottom in the dissolved air floatation cavity, and the outlet end of the dissolved air tank is communicated with the releaser.

The air floatation machine further comprises a filter connected between the dissolved air tank and the releaser.

The working principle and the beneficial effects of the utility model are as follows: the inside of the box body is divided into a water inlet cavity, a dissolved air flotation cavity and a water outlet cavity along the length direction by using the partition plate, the outlet end of the water inlet extends to the bottom of the water inlet cavity, the water outlet is communicated with the water outlet cavity, the outlet end of the dissolved air tank is communicated with the dissolved air flotation cavity, a first medicament adding pipe, a second medicament adding pipe and a medicine mixing pipe are additionally arranged, the inlet end of the medicine mixing pipe is simultaneously communicated with the outlet ends of the first medicament adding pipe and the second medicament adding pipe, the outlet end of the medicine mixing pipe is communicated with the inlet end of the water inlet, the water inlet cavity is communicated with the dissolved air flotation cavity, the dissolved air flotation cavity is communicated with the water outlet cavity by virtue of a connecting pipe penetrating the partition plate, the inlet end of the connecting pipe between the water inlet cavity and the dissolved air flotation cavity is connected with a third medicament adding pipe and a fourth medicament adding pipe, and the inlet ends of the third medicament adding pipe and the fourth medicament adding pipe are all extended to the outside of the box body.

The sewage is lifted to the water inlet of the air floatation machine through the internal circulation pump, enters the bottom of the water inlet cavity through the water inlet, meanwhile, PAC (PAC) medicament and PAM medicament are respectively added through the first medicament adding pipe and the second medicament adding pipe, the two medicaments are mixed through the medicament mixing pipe and then enter the water inlet, the two medicaments and water in the water inlet are mixed and then enter the bottom of the water inlet cavity, the mixed medicaments and water perform preliminary sedimentation through dead weight in the water inlet cavity, heavy continuous bodies are sunk into the bottom, light continuous bodies float on the water surface or in the water, the water enters the dissolved air floatation cavity through the connecting pipe, meanwhile, PAC medicament and PAM medicament are respectively added through the third medicament adding pipe and the fourth medicament adding pipe, the two medicaments are both entered into the connecting pipe, the mixed medicaments and the water in the connecting pipe are also entered into the dissolved air floatation cavity, the mixed medicaments and the water perform secondary flocculation and sedimentation in the dissolved air floatation cavity, meanwhile, the gas in the dissolved air floatation cavity performs air water mixing, the suspended matters and the middle part in the sewage and the oil part are discharged into the water through the water outlet cavity, and finally the clear water flows out of the water outlet cavity.

The utility model mixes water with the medicament for the first time before entering the air floatation machine, carries out the first precipitation in the water inlet cavity after entering the air floatation machine, then mixes the water with the medicament and carries out the second coagulation reaction in the dissolved air floatation cavity, so that impurities, suspended matters and oil stains in the water are discharged more thoroughly, the combination of sewage and the medicament is more thorough through the twice medicament adding coagulation, the mud-water separation effect is increased through the multiple precipitation, and the local removal rate of the sewage of the air floatation machine can be improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic view of the internal structure of the case of the present utility model.

Fig. 2 is a schematic structural view of a slag scraping mechanism in the utility model.

In the figure: 1. the device comprises a box body, 2, a dissolved air tank, 3, a water inlet, 4, a water outlet, 5, a baffle plate, 6, a water inlet cavity, 7, a dissolved air flotation cavity, 8, a water outlet cavity, 9, a first medicament adding pipe, 10, a second medicament adding pipe, 11, a medicine mixing pipe, 12, a connecting pipe, 13, a third medicament adding pipe, 14, a fourth medicament adding pipe, 15, a first mud discharging port, 16, a second mud discharging port, 17, a third mud discharging port, 18, a slag collecting tank, 19, a supporting shaft, 20, a transmission chain, 21, a scraping plate, 22, a driving mechanism, 23, a slag scraping inclined plate, 24, a clear water collecting box, 25, a clear water discharging pipe, 25-1, a first longitudinal pipe, 25-2, a first transverse pipe, 25-3, a second transverse pipe, 26, stairs, 27 and a releaser.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present utility model, are intended to be encompassed within the scope of the present utility model.

The embodiment is shown in fig. 1 and 2, a multi-effect hybrid air floatation machine, which comprises a box body 1, and a dissolved air tank 2 communicated with the box body 1, wherein one end of the box body 1 in the length direction is connected with a water inlet 3, the other end of the box body 1 is connected with a water outlet 4, the inside of the box body 1 is divided into a water inlet cavity 6, a dissolved air floatation cavity 7 and a water outlet cavity 8 by means of a partition board 5 arranged along the length direction of the box body 1, the outlet end of the water inlet 3 extends to the bottom in the water inlet cavity 6, the water outlet 4 is communicated with the water outlet cavity 8, the outlet end of the dissolved air tank 2 is communicated with the dissolved air floatation cavity 7, the air floatation machine further comprises a first medicament adding pipe 9, a second medicament adding pipe 10 and a mixed medicament pipe 11, the inlet end of the mixed medicament pipe 11 is simultaneously communicated with the outlet ends of the first medicament adding pipe 9 and the second medicament adding pipe 10, the outlet end of the mixed medicament pipe 11 is communicated with the inlet end of the water inlet 3, the water inlet cavity 6 is communicated with the inlet end of the dissolved air floatation cavity 7, the dissolved air floatation cavity 7 and the water outlet cavity 8 is communicated with the inlet cavity 8 by means of a connecting pipe 12 penetrating the partition board 5, the inlet end 12 between the dissolved air floatation cavity 7 and the water outlet cavity 8 is communicated with the inlet cavity 6, the inlet end is connected with the inlet end of the third medicament adding pipe 13 and the fourth medicament adding pipe 13, and the fourth medicament is added into the fourth connecting pipe 13, and the fourth medicament adding pipe 13 is connected with the inlet end 13 and the outside and the fourth medicament adding pipe 13 is connected to the fourth medicament adding pipe and the outside pipe 13.

As a further improvement of the utility model, the air flotation machine further comprises a first sludge discharge port 15 which is arranged at the bottom of the box body 1 and is communicated with the water inlet cavity 6, a second sludge discharge port 16 which is arranged at the bottom of the box body 1 and is communicated with the dissolved air flotation cavity 7, and a third sludge discharge port 17 which is arranged at the bottom of the box body 1 and is communicated with the water outlet cavity 8. As shown in fig. 1 and 2, when in use, the first sludge discharge port 15, the second sludge discharge port 16 and the third sludge discharge port 17 are sealed, and when sludge is required to be discharged, the first sludge discharge port 15, the second sludge discharge port 16 and the third sludge discharge port 17 are opened, so that the sludge discharge device is more convenient. The first sludge discharge port 15, the second sludge discharge port 16 and the third sludge discharge port 17 are provided with switch valves, so that the switch states of the first sludge discharge port 15, the second sludge discharge port 16 and the third sludge discharge port 17 are more convenient to adjust.

As a further improvement of the utility model, the air flotation machine further comprises a slag scraping mechanism arranged at the top of the box body 1 and positioned above the water outlet cavity 8, and a slag collecting groove 18 arranged in the water outlet cavity 8 and positioned at one end close to the water outlet 4, wherein the upper end surface of the slag collecting groove 18 is positioned above the liquid level in the water outlet cavity 8, the slag scraping mechanism comprises two support shafts 19 arranged along the length direction of the box body 1, a transmission chain 20 connected between the same ends of the two support shafts 19, a group of scraping plates 21 arranged on each transmission chain 20, and a driving mechanism 22 connected with at least one support shaft 19, the length direction of the support shafts 19 is arranged along the width direction of the box body 1, and the slag collecting groove 18 is positioned below the tail end of the transmission chain 20. As shown in fig. 2, the inside of the tank body 1 is divided into a water inlet cavity 6, a dissolved air flotation cavity 7 and a water outlet cavity 8 which are sequentially arranged from left to right by using the left and right partition boards 5, the upper part of the tank body 1 is provided with a left supporting shaft 19 and a right supporting shaft 19, the axes of the supporting shafts 19 are all arranged along the front and back directions, the front and back ends of each supporting shaft 19 are fixedly provided with chain wheels, the left and right chain wheels positioned in front are connected through a transmission chain 20, the left and right chain wheels positioned at the back are connected through a transmission chain 20, the driving mechanism 22 drives the supporting shafts 19 to rotate, the supporting shafts 19 drive the scraping plates 21 to move, and the scraping plates 21 scrape floating matters above the water surface into the slag collecting groove 18 in the left-to-right moving process, so that the separation effect can be improved.

As a further improvement of the utility model, the air flotation machine also comprises a slag scraping inclined plate 23 arranged in the water outlet cavity 8, wherein the slag scraping inclined plate 23 is positioned below the transmission chain 20, one end of the slag scraping inclined plate 23 is overlapped with the upper end surface of the slag collecting groove 18, and the other end of the slag scraping inclined plate is inclined downwards. As shown in fig. 2, the slag scraping inclined plate 23 can play a supporting and guiding role, so that the floating matters carried by the scraping plate 21 can smoothly enter the slag collecting groove 18.

As a further improvement of the utility model, the air flotation machine further comprises a clear water collecting box 24 arranged outside the box body 1 and a clear water discharging pipe 25 communicated with the clear water collecting box 24, wherein the inlet end of the clear water discharging pipe 25 penetrates through the box body 1 to extend into the water outlet cavity 8, the clear water discharging pipe 25 is positioned below the slag scraping inclined plate 23, and the inlet end of the water outlet 4 is communicated with the clear water collecting box 24. As shown in fig. 1 and 2, clear water below the floating objects in the water outlet cavity 8 is discharged into the clear water collecting box 24 by utilizing the clear water discharge pipe 25, and the clear water collecting box 24 can play a temporary storage role to timely separate the clear water from the floating objects.

As a further improvement of the present utility model, the clean water discharge pipe 25 includes a first longitudinal pipe 25-1 provided in the water outlet chamber 8, a first transverse pipe 25-2 communicating with an end of the first longitudinal pipe 25-1, and a second transverse pipe 25-3 communicating with a middle portion of the first longitudinal pipe 25-1 at a lower end and with the clean water collecting tank 24 at an upper end. As shown in fig. 1 and 2, at least two first transverse pipes 25-2 arranged in the front-rear direction have an open end at the left end and are communicated with the first longitudinal pipe 25-1 at the right end, the first longitudinal pipe 25-1 is communicated with the clean water collecting box 24 through the second transverse pipe 25-3, and clean water enters the clean water collecting box 24 after passing through the first transverse pipe 25-2, the first longitudinal pipe 25-1 and the second transverse pipe 25-3 in sequence, so that the clean water is separated from the floating matters in time.

As a further improvement of the utility model, the air flotation machine further comprises a stair 26 arranged outside the box body 1, and the length direction of the stair 26 is the same as the length direction of the box body 1. As shown in fig. 1 and 2, the stairs 26 are provided along the working direction, and an operator stands on the stairs 26 to observe the situation inside the case 1.

As a further improvement of the utility model, the air floatation machine also comprises a releaser 27 arranged at the bottom in the dissolved air floatation cavity 7, and the outlet end of the dissolved air tank 2 is communicated with the releaser 27. After the pressure of the gas in the dissolved air tank 2 is reduced and the energy is dissipated through the releaser 27, a large amount of micro bubbles are released, sewage is mixed with the micro bubbles, and the micro particles and floaters can be carried out by the micro bubbles and float on the water surface, so that the water purifying effect can be improved.

As a further improvement of the utility model, the air flotation machine also comprises a filter connected between the dissolved air tank 2 and the releaser 27, and the filter is used for filtering the gas entering the box body 1, so that the probability of impurities entering the box body 1 can be reduced, and the separation effect is better.

When the utility model is specifically used, the inside of the box body 1 is divided into a water inlet cavity 6, a dissolved air flotation cavity 7 and a water outlet cavity 8 which are sequentially arranged from left to right by using the left and right partition plates 5, the clear water collecting box 24 is communicated with the water outlet cavity 8 through the clear water discharging pipe 25, the water outlet 4 is communicated with the clear water collecting box 24, and the water inlet cavity 6 is communicated with the dissolved air flotation cavity 7 and the dissolved air flotation cavity 7 is communicated with the water outlet cavity 8 through the connecting pipe 12.

The sewage is lifted to the water inlet 3 of the air floatation machine through the internal circulation pump, enters the bottom of the water inlet cavity 6 through the water inlet 3, meanwhile, PAC medicament and PAM medicament are respectively added through the first medicament adding pipe 9 and the second medicament adding pipe 10, the two medicaments enter the water inlet 3 after being mixed through the medicament mixing pipe 11, the two medicaments also enter the bottom of the water inlet cavity 6 after being mixed with water in the water inlet 3, the mixed medicaments and water are primarily precipitated in the water inlet cavity 6 through dead weight, heavy bodies are sunk into the bottom, light bodies float on the water surface or in the water, the water enters the dissolved air floatation cavity 7 through the connecting pipe 12, PAC medicament and PAM medicament are respectively added through the third medicament adding pipe 13 and the fourth medicament adding pipe 14, the two medicaments enter the connecting pipe 12, the mixed medicine and water are subjected to secondary flocculation and precipitation in the dissolved air flotation cavity 7, meanwhile, the gas in the dissolved air tank 2 enters the dissolved air flotation cavity 7, air-water mixing is performed in the dissolved air flotation cavity 7, suspended matters and oil in sewage float to the water surface, water with cleaner middle part enters the water outlet cavity 8 through the connecting pipe 12 and is subjected to precipitation in the water outlet cavity 8, meanwhile, the driving mechanism 22 drives the supporting shaft 19 to rotate, the supporting shaft 19 drives the scraping plate 21 to move, the scraping plate 21 scrapes the floating matters above the water surface into the slag collecting tank 18 in the left-to-right moving process, and clean water enters the clean water collecting tank 24 through the clean water discharging pipe 25 and is finally discharged from the water outlet 4.

According to the utility model, water is mixed with the medicament for the first coagulation reaction before entering the air floatation machine, and is subjected to the first precipitation in the water inlet cavity 6 after entering the air floatation machine, is mixed with the medicament and is subjected to the second coagulation reaction in the dissolved air floatation cavity 7, and the floating matters above the water surface are scraped into the slag collecting groove 18 through the scraping plate 21, so that impurities, suspended matters and oil stains in the water are discharged more thoroughly, the combination of sewage and the medicament is more thorough through the two-time medicament adding coagulation, the mud-water separation effect is increased through multiple precipitation, and the local removal rate of the sewage of the air floatation machine can be improved.

Claims

1. The utility model provides a multiple-effect hybrid air supporting machine, includes box (1) and dissolves gas pitcher (2) with box (1) intercommunication, and box (1) length direction's one end is connected with water inlet (3), and the other end is connected with delivery port (4), its characterized in that: the utility model discloses a medicine adding device, including box (1), baffle (5) that are arranged along box (1) length direction are inside to be separated into intake chamber (6), dissolve air supporting chamber (7) and play water chamber (8), the exit end of water inlet (3) extends to the bottom in intake chamber (6), delivery port (4) and play water chamber (8) intercommunication, the exit end and the dissolve air supporting chamber (7) intercommunication of air pitcher (2), the air supporting machine still includes first medicament adding pipe (9), second medicament adding pipe (10), and mix medicine pipe (11), mix the entrance end of medicine pipe (11) simultaneously with the exit end intercommunication of first medicament adding pipe (9) and second medicament adding pipe (10), mix the exit end of medicine pipe (11) and the entrance end intercommunication of water inlet (3), between intake chamber (6) and dissolve air supporting chamber (7), dissolve between air supporting chamber (7) and the play water chamber (8) all be with the help to feed through between connecting pipe (12) of baffle (5), add between intake chamber (6) and air supporting chamber (7) and the fourth medicament adding pipe (13) and the import end of fourth medicament adding pipe (13) that stretch into.

2. The multi-effect hybrid air floatation machine of claim 1, wherein: the air floatation machine further comprises a first mud discharging port (15) which is arranged at the bottom of the box body (1) and communicated with the water inlet cavity (6), a second mud discharging port (16) which is arranged at the bottom of the box body (1) and communicated with the dissolved air floatation cavity (7), and a third mud discharging port (17) which is arranged at the bottom of the box body (1) and communicated with the water outlet cavity (8).

3. A multi-effect hybrid air floatation machine in accordance with claim 2, wherein: the first sludge discharge port (15), the second sludge discharge port (16) and the third sludge discharge port (17) are provided with switch valves.

4. The multi-effect hybrid air floatation machine of claim 1, wherein: the air supporting machine further comprises a slag scraping mechanism arranged at the top of the box body (1) and located above the water outlet cavity (8), a slag collecting groove (18) arranged in the water outlet cavity (8) and located near one end of the water outlet (4), the upper end face of the slag collecting groove (18) is located above the liquid level in the water outlet cavity (8), the slag scraping mechanism comprises two supporting shafts (19) arranged along the length direction of the box body (1), a transmission chain (20) connected between the same ends of the two supporting shafts (19), a group of scraping plates (21) arranged on each transmission chain (20) and a driving mechanism (22) connected with at least one supporting shaft (19), and the length direction of the supporting shafts (19) is arranged along the width direction of the box body (1), and the slag collecting groove (18) is located below the tail end of the transmission chain (20).

5. The multi-effect hybrid air floatation machine of claim 4, wherein: the air flotation machine further comprises a slag scraping inclined plate (23) arranged in the water outlet cavity (8), the slag scraping inclined plate (23) is positioned below the transmission chain (20), one end of the slag scraping inclined plate (23) is overlapped with the upper end face of the slag collecting groove (18), and the other end of the slag scraping inclined plate is inclined downwards.

6. The multi-effect hybrid air floatation machine of claim 5, wherein: the air flotation machine further comprises a clear water collecting box (24) arranged on the outer side of the box body (1) and a clear water discharging pipe (25) communicated with the clear water collecting box (24), wherein the inlet end of the clear water discharging pipe (25) penetrates through the box body (1) to extend into the water outlet cavity (8) and the clear water discharging pipe (25) is located below the slag scraping inclined plate (23), and the inlet end of the water outlet (4) is communicated with the clear water collecting box (24).

7. The multi-effect hybrid air floatation machine of claim 6, wherein: the clean water discharge pipe (25) comprises a first longitudinal pipe (25-1) arranged in the water outlet cavity (8), a first transverse pipe (25-2) communicated with the end part of the first longitudinal pipe (25-1), and a second transverse pipe (25-3) with the lower end communicated with the middle part of the first longitudinal pipe (25-1) and the upper end communicated with the clean water collecting box (24).

8. The multi-effect hybrid air floatation machine of claim 1, wherein: the air flotation machine further comprises a stair (26) arranged on the outer side of the box body (1), and the length direction of the stair (26) is the same as the length direction of the box body (1).

9. The multi-effect hybrid air floatation machine of claim 1, wherein: the air floatation machine further comprises a releaser (27) arranged at the inner bottom of the dissolved air floatation cavity (7), and the outlet end of the dissolved air tank (2) is communicated with the releaser (27).

10. The multi-effect hybrid air floatation machine of claim 9, wherein: the air floatation machine also comprises a filter connected between the dissolved air tank (2) and the releaser (27).