Bracket type gas distribution pipe lifting device and aerator pipe maintenance and replacement method

Abstract

The invention provides a bracket type gas distribution pipe lifting device and an aerator pipe maintenance and replacement method. The bracket type gas distribution pipe lifting device comprises a plurality of sets of gas distribution pipes, wherein the gas distribution pipes are arranged in an aeration tank and bear aerator pipes. Gas inlet pipes are arranged corresponding to the gas distribution pipes, the gas distribution pipes are arranged on a bracket arranged at the bottom of the aeration tank, vertical lifting rods are arranged on the four corners of the bracket, and lifting mechanisms are arranged on the portions, corresponding to the lifting rods, of the tank wall top of the aeration tank. Each lifting mechanism comprises a chain block, wherein each chain block is installed on a corresponding lifting support and located exactly above the corresponding lifting rod. A hanging ring is arranged on each lifting rod, and hooks of the chain blocks are hung on the hanging rings in a hooked mode. The gas inlet pipes are arranged beside one side of the tank wall. Each gas inlet pipe comprises a vertical section and a horizontal section. Each vertical section is communicated with the corresponding gas distribution pipe, each horizontal section is led to the aeration tank from the top of the corresponding tank wall, and the vertical section and the horizontal section of each gas inlet pipe are connected through a flange or are detached. According to the bracket type gas distribution pipe lifting device and the aerator pipe maintenance and replacement method, maintenance and replacement of the aerator pipes can be achieved under the condition that water drainage and sewage removal are not conducted, unimpeded maintenance and replacement of the aerator pipes are achieved, and the aeration effect of the sewage treatment technology is guaranteed.

Description

technical field [0001] The invention relates to internal facilities of a sewage treatment system, in particular to a bracket-type air distribution pipe lifting device for an aerobic activated sludge aeration tank and an aeration pipe maintenance and replacement method. Background technique [0002] The air distribution pipe is used as the bearing of the aeration pipe and the gas transmission and distribution pipe. Generally, a group of air distribution pipes carries dozens of aeration pipes. During operation, the wind blown by the blower is distributed to each air distribution pipe through the main pipe, and then distributed The aeration pipe installed on the trachea evenly distributes the air to each position of the aeration tank. [0003] Because the air distribution pipe is fixed by the fixed feet installed at the bottom of the aeration tank, when the aeration pipe is damaged, the sewage and sludge in the aeration tank must be emptied and the air distribution pipe and aer...

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Problems solved by technology

[0003] Because the air distribution pipe is fixed by the fixed feet installed at the bottom of the aeration tank, when the aeration pipe is damaged, the sewage and sludge in the aeration tank must be drained and the air distribution pipe and aeration pipe must be cleaned before they can be repaired and replaced. The process is time-consuming, labor-intensive, and energy-intensive, but in more cases, it is not allowed to stop the operation in the process, and there is no time for cleaning and maintenance

[0004] If the aeration pipe is damaged and is not repaired in time, not only the aeration is not good enough to affect the sewage treatment effect, but also the mud from the damaged aeration pipe enters into the other aeration pipes of the same group to cause blockage. After a long time of blockage, the silica on the aeration pipe The rubber skin, EPDM skin or PU skin will lose its elasticity and cannot be used. If the entire set of aeration pipes are damaged, the sewage treatment effect will be seriously affected, resulting in poor water quality.

[0005] At present, there is an aeration tube lifting device that assembles several aeration tubes through hoses. Such a device has poor operability and the hoses are easy to be damaged. It is costly to transform the aeration tubes of the existing aeration tank into this method, and there is no place at the bottom of the tank. Good fixed, easy to shake, etc.

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