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Wuxi Wanchuan Environmental Equ-Ipment Technology Co.,Ltd

GF Type Combined Dissolved Air Flotation

WF type combination air flotation device introduction I. Uses of WF type combination air flotation device In the process of water supply and drainage treatment, the separation technology of solid and liquid as well as equipment is one of the key projects. Air flotation is one of the most...

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WF type combination air flotation device introduction


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I.Uses of WF type combination air flotation device

In the process of water supply and drainage treatment, the separation technology of solid and liquid as well as equipment is one of the key projects. Air flotation is one of the most effective methods for the removal of the fine particles suspended which are close to the water in the proportion.


II.The representation method of model number

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III.Features of WF type combination air flotation device

1.Small land occupation, little power consumption, easy to operate and simple to manage;

2. High dissolved air efficiency, stable treatment effect, and the integration of control of machine, electricity and instrument;


IV.Structure and work process
The WF type combination air flotation device is made up of air flotation tank body, dissolved air system, dissolved air return line, dissolved air water release device, foam scraping device (including combined type, driving type and chain plate type used respectively according to the needs of users) and electric control cabinet and other components.
The major role of air flotation (can reduce COD, BOD and chroma and so on at the same time) is the separation of solid and liquid. Add the flocculant PAC or PAM in raw water, and raw water enters the contact zone of the combination air flotation after the effective flocculation reaction (time, dose and flocculation effect must be experimentally determined). In the contact zone, the micro bubbles of dissolved air water and the floc in raw water mutually bond and enter together into the separation zone, under the action of the buoyancy of the bubbles, the flocs and bubbles rise together to the liquid level, forming scum. Scum is scraped by scraping foam device to the sludge zone. The fresh water in lower layer flows automatically through the collector pipe to clear water pool. Part of fresh water flows back which is used for dissolved air system, and the other part is discharged.
Through the jet flow inhale device, under certain work pressure, return water makes air dissolved into the water to the maximum extent, becoming the dissolved air water, and in air flotation contact zone, through the rapid decompression release of the release device, the dissolved air water forms micro bubbles with the diameter of 30um-50um. The micro bubbles can adhere to each other with the flocs in raw water.
Outline drawing is shown in Figure 1 and Figure 2, the technical parameters are shown in Table 1, and the overall dimensions are shown in Table 2.


Technical parameters of WF type combination air flotation device

Model number

Dealing water amount (m3 / h)

Dissolved air water amount (m3 / h)

Size of separation area (m2)

Main motor (KW)

The aerated motor (KW)

The foam scraping machine (KW)

Equipment weight (KG)

Operating Weight (KG)

WF-2

1~2

0.4~0.8

0.72

0.55

0.55

0.18

800

2000

WF-3

2~3

0.5~1

1

0.75

0.75

0.37

1100

3600

WF-5

3~5

1~2

1.5

1400

4400

WF-10

5~10

2~3

3

1.5

1900

9400

WF-15

10~15

3~5

4.5

2.2

0.55

2400

12400

WF-20

15~20

5~7

5.4

3000

15000

WF-30

20~30

6~12

8

3.0

1.5

3700

21000

WF-40

30~40

8~13

11

5.5

4300

26500

WF-50

40~50

15~20

13.5

0.75

4950

33000

WF-60

50~60

20~25

16

7.5

5500

3900

WF-70

60~70

20~25

19.5

6000

45000

WF-80

70~80

25~28

21.5

11

2.2

6700

52000

WF-90

80-90

25~35

23

7200

59500

WF-100

90~100

30~35

28

15

7800

68000

WF-120

100~120

35~45

33

8600

77000


WF type combination air flotation device


The installed size of combination air flotation equipment (mm)(WF-2----WF-30)


WF type combination air flotation device

Model number

WF-2

WF-3

WF-5

WF-10

WF-15

WF-20

WF-30

L

1800

2200

2400

3500

4000

5000

L1

1500

1500

1700

2500

3000

4000

L2

2000

2900

3100

4200

4700

5700

L3

500

1000

2000

B

650

800

1000

1200

1500

1800

2000

B1

300

400

500

B2

1100

1900

2100

2300

2600

2900

3100

H

1350

1700

2000

H1

1500

2000

2300

H2

900

1200

1500

DN2

50

50

100

125

H3

90

250

300

DN3

50

80

100

125

150

H4

850

850

1054

DN4

40

80

100

H5

515

600

850

DN5

25

25

50

H6

80

140

150

DN6

32

50

80



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