Yunxin Yan, Mingchun Lu
This paper describes a new type of bell-less top installed on two re-lined blast furnaces at Tianjin Iron Works and another new-built at Echeng Steel Works in China. A compact installation was presented for existing furnace top innovation with the least reformation of existing top structure. A water cooling and sealing gearbox used for driving the chute discards completely the traditional idea about necessity of continuous supply of cooling gas for the gearbox. A multi-ring spreader and its dozen of selectable charging patterns enables an operator to achieve optimal burden distribution easily under the condition of a minimum investment of control equipment. Some useful conclusions have been made through a small-size model and a full-scale model tests. The excellent characteristics and the superiority of the new top have been fully proved at both works.
@article{1321fc6c-88aa-4f34-a910-cd4b81efa1e8,
title={A NEW TYPE OF BELL-LESS TOP FOR BLAST FURNACES},
author={Yunxin Yan and Mingchun Lu},
year={2026},
language={en}
}TY - JOUR TI - A NEW TYPE OF BELL-LESS TOP FOR BLAST FURNACES AU - Yunxin Yan AU - Mingchun Lu PY - 2026 LA - en ER -
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