Air lift back washing device and method
A backwashing and air-lifting technology, applied in the field of packing backwashing, can solve problems such as increasing operating costs, and achieve the effects of saving resources, low energy consumption, and improving treatment efficiency
Pending Publication Date: 2019-03-22
ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENG
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Problems solved by technology
[0003] The purpose of the present invention is to solve the reason that the system needs to replace the packing after the long-term operation of the existing packing method in the prior art, and the shortcoming of increasing the operating cost, and proposes a kind of air lifting backwashing device and method
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0022] refer to Figure 1-2 , an air-lift backwashing device, comprising a flushing barrel 1 and an intermediate bucket 2, the intermediate barrel 2 is fixedly socketed in the inner cavity of the flushing barrel 1 through a fixed rod 3, and the number of the fixed rods 3 is not less than Three, and a plurality of fixing rods 3 are evenly fixed between the middle barrel 2 and the bottom wall of the flushing cylinder 1, and the inner sidewall of the flushing barrel 1 and the outer sidewall of the middle barrel 2 are fixed by a packing layer 6, and the A water outlet 21 is provided in the middle of the top of the middle bucket 2, the shape of the water outlet 21 is an i...
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The invention relates to the technical field of padding back washing, and particularly discloses an air lift back washing device and method. The air lift back washing device comprises a washing tube and a middle barrel, wherein the middle barrel is fixedly sleeved with the cavity of the washing tube through a fixed rod; the inner side wall of the washing tube is fixed to the outer side wall of themiddle barrel through a padding layer; an air inlet pipe is fixedly communicated with the side wall of the lower end of the middle barrel; the air inlet pipe is communicated with an air pump througha connecting pipe; an L-shaped exhaust pipe is fixedly connected with the bottom end of the cavity of the washing tube; the interior of the washing tube is filled with a washing fluid. The air lift back washing device is skillful in design, simple to operate, good in washing effect and low in operation cost, can realize automatic adjustment of washing strength. The device can realize cyclic utilization of the washing fluid, thereby being capable of saving resources, is low in energy consumption, avoids unwashed dead angles on the device because water flow inside the washing tube is circulated,and improves the treatment efficiency.
Description
technical field [0001] The invention relates to the technical field of filler backwashing, in particular to an air-lift backwashing device and method. Background technique [0002] The backwashing process of sewage treatment is an essential process of packing biofilm method. For a long time, three methods of air washing, water washing, and air-water washing have been used in this process. Both air and water washing methods require increased energy consumption to provide a large amount of air and clean water. First, the initial investment of the project has been increased, and the operating cost has increased. The second is that traditional backwashing is easy to block and cause dead zones, which reduces the processing efficiency of the treatment system. The third is that uneven washing leads to complete stripping of some fillers, and the efficiency starts slowly in the later stage. The above three reasons directly lead to the need for systematic replacement of packing after...
Claims
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IPC IPC(8): C02F3/10
CPCC02F3/10C02F2303/14Y02W10/10
Inventor 张锋孟令甫施武林
Owner ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENG