Novel small gas-water backwashing filtration tank
A technology of backwashing and filtering tanks, applied in the field of water treatment, can solve the problems of high operating costs, large investment in equipment, complicated operation, etc., and achieve the effects of preventing the loss of filter materials, prolonging the renovation period, and improving the effect of backwashing
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[0047] Please refer to Figure 1 to Figure 4 As shown, it shows the specific structure of the preferred embodiment of the present invention, a new type of small air-water backwash filter tank, including a tank body, the tank body can be divided into 2 to 6 filter cells, each filter Filter area is not more than 30m 2 .
[0048] The filter grid is provided with a water inlet area 10, a filter area 20, and a water and air distribution area 30; each filter grid is provided with a water inlet 11, and each water inlet 11 is connected to a water inlet branch pipe 12, and each water inlet branch pipe 12 is connected to an inlet The water main pipe 13 is in communication; the water inlet 11 is in communication with the water inlet area 10.
[0049] The water inlet area 10 is provided with a backwash waste water tank 14, and the bottom of the backwash waste water tank 14 is provided with a sewage outlet 141. The backwash waste water tank 14 and the filter area 20 are separated by a baffle 1...
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