Bypass exhaust waste heat utilization system

By designing a bypass ventilation waste heat utilization system, the problems of high energy consumption and waste heat in traditional bypass ventilation systems have been solved. This has enabled the stable discharge of harmful elements and the effective utilization of waste heat, thereby improving the energy and resource utilization rates of cement production.

CN224285467UActive Publication Date: 2026-05-26HUNAN PROVINCE MATERIALS RES & DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN PROVINCE MATERIALS RES & DESIGN INST
Filing Date
2025-05-07
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional bypass ventilation systems consume a lot of heat and electricity, have high investment costs, and fail to effectively utilize waste heat, resulting in serious energy waste in cement plants.

Method used

Design a bypass venting waste heat utilization system, including components such as kiln tail smoke chamber, quench chamber, quench fan, cyclone separator, bypass waste heat boiler, dust collector and kiln ash silo, to achieve the discharge of harmful elements and effective utilization of waste heat through the treatment of high temperature dust-containing gas and waste heat recovery.

Benefits of technology

It reduces energy consumption, improves energy utilization, reduces equipment investment costs, and utilizes kiln ash resources, thereby improving the stability and economic benefits of cement production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bypass exhaust waste heat utilization system which comprises a kiln tail smoke chamber, a quenching chamber, a quenching fan, a cyclone cylinder, a bypass waste heat boiler, a dust collector, a kiln dust bin, a pneumatic conveying pump and the like. High-temperature dust-containing gas is discharged from the kiln tail smoke chamber, is mixed with cooling air for cooling in the quenching chamber, enters a bypass waste heat boiler for waste heat power generation after being subjected to dust collection through a cyclone cylinder, and waste gas discharged out of the boiler is purified by a dust collector and discharged outwards. Kiln dust collected by the cyclone is stored in a kiln dust bin, part of the kiln dust is conveyed to a cement batching station through a pneumatic conveying pump to serve as mixed materials, and part of the kiln dust is transported outwards in bulk through an automobile. According to the system, a two-stage cooling mode is adopted, compared with a traditional bypass ventilation system, the clinker generating capacity per ton can be increased by about 2.2 kWh, energy saving is remarkable, the kiln dust treatment process is optimized, the resource utilization rate is increased, the production cost and equipment investment are reduced, and the problems that a traditional system is large in heat power consumption, waste heat is not utilized and the like are effectively solved.
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