Multi-stage concentration odor and multi-stage deodorization system for sludge

By designing a multi-stage exhaust duct section and deodorization device for sludge multi-concentration odor and a multi-stage deodorization system, the problem of underutilization of odor treatment capacity in traditional systems has been solved, achieving efficient and stable odor treatment and energy-saving operation.

CN122164210APending Publication Date: 2026-06-09CHINA UNITED ENG
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Patent Information

Application Number
CN202610596435.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing sludge incineration power generation projects, traditional deodorization systems fail to effectively distinguish between high, medium, and low concentrations of odor, resulting in underutilization of the processing capacity of boilers and strong deodorization devices, as well as unstable exhaust volume and pressure, affecting system safety and environmental performance.

Method used

Design a multi-level odor control system for sludge, which involves setting up multi-stage exhaust pipe sections and deodorization devices. The system prioritizes the use of boilers and strong deodorization devices to treat high-concentration odors, while weak deodorization devices treat low-concentration odors. The exhaust volume is regulated by electric regulating valves and make-up air pipes to ensure stable system operation.

Benefits of technology

This system optimizes the utilization of odor treatment capacity, reduces residual odor emissions from exhaust gases, improves system reliability and environmental performance, and reduces energy consumption and the workload of management personnel.

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Abstract

The invention provides a sludge multi-stage concentration odor and a multi-stage deodorization system, which can be used for treating high-concentration odor, medium-concentration odor and low-concentration odor in a differentiated manner. An exhaust pipe of the incinerator surge bin and an exhaust pipe of the sludge conveying belt conveyor are converged and then are connected to the high-concentration first pipe section through an exhaust fan; an exhaust pipe in the sludge drying equipment is converged with the high-concentration first pipe section and then is connected to the high-concentration second pipe section, the high-concentration second pipe section is divided into two paths, one path is connected to the medium-high-concentration first pipe section, and the other path is connected to a boiler air pipe; the medium-high-concentration first pipe section is divided into two paths, one path is connected to the medium-high-concentration second pipe section, and the other path is connected to an exhaust pipe between the wet sludge tanks; the medium-high-concentration second pipe section is divided into two paths, one path is connected to a strong deodorization device, and the other path is connected to the medium-low-concentration pipe section; the exhaust pipe of the sludge drying machine room and the exhaust pipe of the sludge discharging room are converged and then connected to the low-concentration pipe section, the low-concentration pipe section is divided into two paths, one path is connected with the medium-low-concentration pipe section, and the other path is connected with the weak deodorization device.
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