Secondary sedimentation tank central pipe of small purification tank equipment

Abstract

The invention relates to the technical field of purification tank equipment, and discloses a secondary sedimentation tank central pipe of small purification tank equipment, which comprises a purification tank, a plurality of bulkheads are fixedly arranged in the purification tank, and the bulkheads divide the purification tank into an aerobic tank and a secondary sedimentation tank; a sleeve holeis formed in the surface of the lower end of the bulkhead between the aerobic tank and the secondary sedimentation tank, a central pipe is fixedly inserted into the sleeve hole, a plurality of water permeable holes are uniformly formed in the surface, located in the aerobic tank, of the central pipe, and a separation net is fixedly connected to the inner wall of the end, located in the aerobic tank, of the central pipe; the pipe wall of the center pipe is fixedly sleeved with a positioning annular plate connected to the outer side of the bulkhead in a sealed and pressed mode, and the outer wall of the bulkhead is slidably connected with a plurality of L-shaped clamping blocks used for positioning and limiting the positioning annular plate through a sliding mechanism. Herein, by means of the secondary sedimentation tank central pipe, the small purification tank equipment can solve the problems that the sedimentation effect of the secondary sedimentation tank is easily influenced and theeffluent is not clear due to the fact that gas after aeration of the aerobic tank enters the secondary sedimentation tank.

Description

technical field [0001] The invention relates to the technical field of clean tank equipment, in particular to a central pipe of a secondary sedimentation tank of small clean tank equipment. Background technique [0002] Septic tank, which originated in Japan and is the Chinese transliteration of JOHKASOU, is a small domestic sewage treatment device. It is used for the treatment of dispersed domestic sewage or similar domestic sewage. After the sewage enters the purification tank, the sedimentation and separation tank performs pretreatment to remove particles and suspended solids with a large specific gravity and improve the biodegradability of the sewage; the pre-filtration tank is equipped with fillers, which are removed under the action of anaerobic biofilm on the fillers. Soluble organic matter; the aeration tank integrates aeration, high filtration rate, interception of suspended matter and regular backwashing. The overflow weir of the sedimentation tank is equipped wi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a central tube of a secondary settling tank for small purification tank equipment, which can effectively prevent the aerated gas from the aerobic tank from entering the secondary settling tank and easily affect the sedimentation effect and effluent of the secondary settling tank. The advantage of the problem of unclearness solves the problem that the existing small-scale purification tank equipment cannot be installed with the center cylinder of the traditional secondary sedimentation tank due to its small size. It can only open a water hole at the bottom of the bulkhead and install a connecting pipe, but the existing connecting pipe Most of them are installed horizontally, which causes the gas after aeration in the aerobic tank to easily enter the secondary settling tank, disturbing the secondary settling tank, affecting the sedimentation effect of the secondary settling tank, and making the effluent water unclear

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