Kiln tail heat boiler waste heat utilization structure and utilization method thereof

The kiln tail waste heat boiler structure with dual-pressure operation mode switching solves the problems of high air temperature during roller press operation and insufficient utilization of waste heat during shutdown, thus achieving efficient utilization of waste heat resources and temperature regulation.

CN121932817BActive Publication Date: 2026-06-26ANHUI CONCH KAWASAKI ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI CONCH KAWASAKI ENG
Filing Date
2026-03-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, the air temperature of the waste heat boiler at the kiln tail is too high during the operation of the roller press, and it cannot be directly discharged during shutdown, resulting in insufficient recovery and utilization of waste heat, waste of resources, and the need for water spraying to cool down.

Method used

The kiln tail waste heat boiler structure adopts a dual-pressure operation mode switching. By switching between different pressure states of the first steam drum and the second steam drum, the flue gas temperature is adjusted to meet the drying needs of the roller press or to be directly discharged, avoiding water spraying for cooling.

Benefits of technology

This technology effectively reduces the boiler outlet air temperature during roller press operation to meet drying requirements, and eliminates the need for water spraying for cooling during shutdown, thereby improving the utilization rate of waste heat resources and avoiding resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the kiln tail waste heat boiler waste heat utilization technical field's kiln tail waste heat boiler waste heat utilization structure, and the present application further relates to a kind of kiln tail waste heat boiler waste heat utilization method.First steam drum (1) is connected with steam turbine make-up steam port (6) by first conveying pipeline (5), the first outlet of second steam drum (2) is connected with second evaporator (8) inlet, the outlet of second evaporator (8) is connected with second steam drum (2), the second outlet of second steam drum (2) is connected with the inlet of superheater (9), first valve (10) is installed on first conveying pipeline (5), second valve (11) is installed between first conveying pipeline (5) and the second outlet of second steam drum (2), and the outlet of superheater (9) is connected with steam turbine main steam port (19).The kiln tail waste heat boiler waste heat utilization structure of the present application meets the raw material drying temperature requirement of raw material mill of roller press during raw material mill operation, and water injection is not needed to reduce outlet air temperature during raw material mill shutdown.
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Citation Information

Patent Citations

  • System for automatically adjusting temperature of smoke at outlet of waste heat boiler

    CN101968216A

  • Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method

    CN103291390A

  • Heat exchanging device for glass kiln waste heat power generation denitration system

    CN103968672A