Probe type ultrasonic device for breaking sludge

An ultrasonic and probe-type technology, which is applied in the field of cracking devices for excess sludge pretreatment, can solve the problems of large digester body, long digestion residence time, and difficult dehydration process, so as to increase the residence time, ensure continuous conveying operation, The effect of shortening the cracking time

Inactive Publication Date: 2009-09-16
SUN YAT SEN UNIV +1
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Problems solved by technology

[0002] The back-end treatment of excess sludge usually includes thickening and dehydration, anaerobic digestion, and returning to an aerobic aeration system for biological retreatment. However, the hydrophilic characteristics and floc structure of activated sludge make the dehydration process very difficult, and the microorganisms The presence of a large amount limits the reaction rate in the hydrolysis stage of anaerobic digestion, resulting in long digestion residence time, large digester volume and low methane production

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  • Probe type ultrasonic device for breaking sludge
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Embodiment Construction

[0013] The ultrasonic sludge breaking device provided by the present invention consists of five parts: a sound energy generator (1), a transducer (5), an ultrasonic probe (6), a vertical flow groove (9) and a sound insulation box (11). composition. The power controller (2) of the acoustic energy generator (1) can select the optimal ultrasonic power according to the changes of sludge concentration and flow rate, and its heat dissipation system (4) and timer (3) can ensure the stable state and automatic operation of the device. run. The transducer (5) is a stainless steel cylindrical structure, and the ultrasonic probe (6) is a titanium alloy MS73 cylindrical structure, one end is connected to the transducer (5), and the other end is connected to the vertical flow groove (9). The front end of the vertical flow tank (9) is the mud inlet, the rear end is the mud outlet, and the front end of the tank is provided with a mud inlet baffle to increase the residence time of the sludge ...

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Abstract

The invention provides a probe type ultrasonic device for breaking sludge, which consists of a sound energy generator, an energy transducer, an ultrasonic probe, a vertical chute and a soundproof box. The sound energy generator has a box body structure, is connected with the energy transducer, and comprises a cooling system, a power controller and a time controller. The energy transducer has a stainless steel cylindrical structure, while the ultrasonic probe has a titanium alloy MS73 cylindrical structure, one end of the probe is connected with the energy transducer, while the other end is positioned in the vertical chute. The front end of the vertical chute is a sludge inlet and the back end is a sludge outlet, and the front end in the chute is provided with a sludge baffle plate to increase the staying time of the sludge in the chute. The whole energy transducer, the ultrasonic probe and the vertical chute are completely arranged and sealed in the soundproof box. The soundproof box is connected with a support to form an airtight fixing device for the convenience of carrying and displacement.

Description

Technical field [0001] The invention relates to sewage treatment equipment, in particular to a cracking device for excess sludge pretreatment. Background technique [0002] The back-end treatment of excess sludge usually includes concentration and dehydration, anaerobic digestion and return to aerobic aeration system for biological reprocessing. However, the hydrophilic nature and floc structure of activated sludge make the dehydration process very difficult, and the microbial The presence of large amounts limits the reaction rate of the hydrolysis stage of anaerobic digestion, resulting in long digestion residence time, bulky digester body, and low methane production. Studies have shown that sludge disintegration can effectively promote sludge reduction, improve dewatering performance, increase anaerobic digestion hydrolysis rate and increase methane production. Crack the sludge structure and cell wall, make the sludge floc structure change, the intracellular contents flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00
Inventor 雷恒毅丁岳南冯新
Owner SUN YAT SEN UNIV
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