高爐爐身熱負荷監視模式開發

The Development of Heat Load Monitor Model of Blast Furnace Shaft

吳耑熠(J.Y. Wu) ； 何忠根(C.K. Ho) ； 楊明恭(M.K. Yang)

《鑛冶：中國鑛冶工程學會會刊》 51卷2期 (2007/06) Pp. 29-37

https://doi.org/10.30069/MM.200706_51(2).0003

摘要

適當的結垢層對高爐內襯壽命及能源節省有正面的作用。為隨時監視結垢層厚度，避免形成大型結垢物，利用爐壁溫度及爐身壓力數據建立內襯殘厚及結垢層推估模式、利用類神經網路將料面溫度數據歸類建立氣體分佈指標，最後整合成一監視模式。除了可隨時監視爐身內襯殘厚及結垢層厚度的變化，也可掌握氣流分布及爐壁熱負荷之狀況。同時建立佈料及操作變數與爐壁熱負荷間的相對關係，以作為變更操作調整時之參考。

關鍵字

冷卻壁 ； 熱負荷

並列摘要

A proper and stable accretion layer on lining could prolong campaign life of blast furnace and promote energy efficiency. In order to avoid forming abnormal scaffold on shaft wall, an estimated model of lining residual thickness and accretion thickness was established on the base of the temperature and pressure data of blast furnace shaft. And, the distribution pattern of gas flow was classified by using a neural network based on the gas temperature measurements from the above-burden probes. It could monitor the lining residual thickness and accretion thickness, the trend of heat load on wall, and gas flow distribution. According to the gas temperature distribution map, the relationship between the heat load and several process variables were established to provide a useful tool for operating guidance in daily practice. As any abnormalities occurred, operator can take countermeasure in time to keep the furnace in stable running.

並列關鍵字

Stave cooler ； Heat Load