Self-cleaning hydrodynamic cavitation device

By designing a self-cleaning hydraulic cavitation device, the self-cleaning of the orifice plate cavitator is achieved by using the synergistic effect of the backwashing device and the cleaning scraper, and combining the mixing function of the cyclone cavitator, the problems of unstable sludge dehydration and high moisture content are solved, and efficient and stable sludge dehydration effect is achieved.

CN222647817UActive Publication Date: 2025-03-21CHINA RESOURCES ENVIRONMENTAL PROTECTION APPLIED TECH RES (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202421332635.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-03-21
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

Existing hydraulic cavitation devices are prone to instability in operation due to impurities blockage when treating industrial sludge, and it is difficult to effectively reduce the moisture content of the sludge.

Method used

A self-cleaning hydraulic cavitation device is designed, including a counter-cleaning device and a sequentially connected feed pipe, an orifice cavitator, a sludge conveying pipe, a cyclone cavitator and a discharge pipe. The device realizes self-cleaning of the orifice cavitator through the synergy of the backwashing device and the cleaning scraper, and combines the mixing function of the cyclone cavitator to improve the dehydration effect of the sludge.

Benefits of technology

The device operates stably through a self-cleaning mechanism, which significantly improves the sludge dehydration effect, can reduce the moisture content of the sludge to less than 55%, and has advantages in environmental protection and energy saving.

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Abstract

The utility model discloses a self-cleaning hydrodynamic cavitation device and relates to the field of sludge treatment. The self-cleaning hydrodynamic cavitation device comprises a backwashing device, and a feeding pipeline, a pore plate cavitator, a sludge conveying pipeline, a rotational flow cavitator and a discharging pipeline which are communicated in sequence; a feeding valve is arranged on the feeding pipeline, and an outlet valve is arranged on the sludge conveying pipeline; the backwashing device comprises a water inlet pipeline and a water drainage pipeline; the water inlet pipeline is communicated with the sludge conveying pipeline between the pore plate cavitator and the outlet valve, and a water inlet valve is arranged on the water inlet pipeline; the drainage pipeline is communicated with the feeding pipeline between the feeding valve and the pore plate cavitator, and a drainage valve is arranged on the drainage pipeline; and the sludge conveying pipeline is also communicated with a medicament conveying pipeline. The self-cleaning hydrodynamic cavitation device disclosed by the utility model can be used for effectively dehydrating sludge; effective self-cleaning can be achieved, and the system stability is high; and energy conservation can be realized while the dehydration effect is improved.
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