一种循环流化床锅炉直接掺烧污泥的系统装置及系统方法

CN116398891BActive Publication Date: 2026-07-17STATE POWER INVESTMENT CORP JIANGSU ELECTRIC POWER CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE POWER INVESTMENT CORP JIANGSU ELECTRIC POWER CO LTD
Filing Date
2023-04-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When circulating fluidized bed boilers directly co-fire sludge, the high proportion of co-firing leads to unstable boiler operation. In particular, when co-firing sludge with high moisture content, it affects the bed temperature and distribution, resulting in poor safety and operational flexibility.

Method used

The sludge feeding assembly, which is fed into the furnace in stages, includes first and second sludge feeding devices. By adjusting the amount of sludge added to the high and low positions, the bed material temperature and the dilute phase temperature are controlled, thereby improving the uniformity of material distribution and avoiding local overheating and coking.

Benefits of technology

This improved the flexibility and safety of boiler operation under different load conditions, avoided local overheating and coking in the furnace bed, and enhanced the uniformity and stability of sludge co-firing.

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Abstract

本发明提供一种循环流化床锅炉直接掺烧污泥的系统装置,所述系统装置包括循环流化床装置以及污泥给料组件,所述污泥给料组件包括依次连接的第一污泥给料装置以及第一污泥落料装置,所述第一污泥落料装置的污泥出口与所述循环流化床装置的中部污泥入口相连;所述污泥给料组件还包括依次连接的第二污泥给料装置以及第二污泥落料装置,所述第二污泥落料装置的污泥出口与所述循环流化床装置的底部污泥入口相连。所述系统装置及系统方法可以灵活调整锅炉特定负荷及变负荷工况下的床料温度,提升锅炉运行安全性,提高入炉污泥的布料均匀性,避免炉床局部超温结焦。
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