System for dredging silt without emptying aeration tank
An aeration tank, unclear technology, applied in the system field of dredging mud and sand, can solve the problems of mud and sand deposition in the aeration tank, achieve the effect of improving processing capacity, improving operation stability and safety, and reducing failure rate
Pending Publication Date: 2020-09-18
天津滨海新区塘沽环科新河污水处理有限公司 +1
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a system for clearing silt and sand in the aeration tank without emptying, and to solve the problem of long running time in the aeration tank silt in the sewage treatment plant using the Baileke process. siltation problem
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[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments to facilitate understanding by those skilled in the art.
[0031] like Figures 1 to 4 The shown system for removing silt and sand without emptying the aeration tank, the system is arranged on the aeration tank 5, and it includes connecting hoses 1 arranged at intervals on the aeration tank, and each connecting hose 1 is spaced apart from each other. A plurality of sand suction units 2 are provided. The sand suction unit 2 includes a hollow floating plate 2.1 floating on the water surface of the aeration tank. The hollow floating plate 2.1 is provided with an adjustable channel support 2.2, and the adjustable channel support 2.2 is provided with a three-way pipe 2.3. Both ends of the tee pipe 2.3 of the middle sand suction unit 2 are connected with the connecting hose 1, and one end of the tee pipe 2.3 of the sand suction unit 2 at the end...
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The invention discloses a system capable of dredging silt without emptying an aeration tank. The system is arranged on an aeration tank and comprises connecting hoses arranged on the aeration tank atintervals, a plurality of sand suction units are arranged on each connecting hose at intervals, one end of each connecting hose extends out of the aeration tank and is connected with an external pipein parallel, and the other end of each external pipe is connected with a vertical flow sand removal device. Under the condition that the bottom geomembrane seepage-proofing structure is not damaged, the mud level is controlled to not influence swinging of an aeration head, meanwhile, along with reduction of the silt amount, the tank volume and the water depth are also guaranteed, and the processing capacity of the system and the mass transfer efficiency of oxygen are enhanced.
Description
technical field [0001] The invention relates to the field of waste water treatment, in particular to a system for removing silt and sand without emptying an aeration tank. Background technique [0002] Baileke process is a multi-stage activated sludge sewage treatment system with the function of denitrification and phosphorus removal. The biochemical stage is mainly composed of anaerobic tank, A / O tank, secondary sedimentation tank and stabilization tank. A / O pool aeration adopts a hanging chain aeration device, a movable ventilation chain is floating on the pool surface, and several floating microporous aeration heads are hung on the chain. The ends of the suspension chain are fixed on both sides of the aeration tank, and the suspension chain can move in a serpentine shape in the water, and its natural swing can play an effective mixing role. There is a certain distance between the aeration head and the bottom of the tank. Due to the high sand content in the influent wate...
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IPC IPC(8): C02F7/00
CPCC02F7/00C02F2303/14Y02W10/10
Inventor 沈旺卜翠娜金江华
Owner 天津滨海新区塘沽环科新河污水处理有限公司