External distributor style top-burning hot-air furnace

Abstract

A outboard allocate hot-blast stove top gas burner. Fit mixing chamber on the top of blast chamber of air-stove. There are different air and coal gas penetrating ducts inside and outboard allotter outside of mixing chamber. Air and coal gas mix in mixing chamber throughout outboard allotter and coal gas penetrating ducts. Then diffuse to blast chamber.

Description

Technical field [0001] The invention relates to a top-combustion hot-blast stove in the field of blast furnace hot-blast stoves in metallurgical systems, and is a top-combustion hot-blast stove with an external distributor. Background technique [0002] Blast furnace smelting requires hot air with a high enough temperature. The hot blast stove is a device that provides this hot blast. The current industrial hot blast stoves include internal combustion type, top combustion type, ball type, and external combustion type. Among them, the top combustion type hot blast stove has different The structure, such as the hot blast stove with patent No. WO0058526 and WO03071555, has the disadvantage that the collector is arranged inside the pre-combustion chamber, which is not penetrating. The lining of the pre-combustion chamber is relatively thick, and the configuration of air and gas channels is limited. It is relatively complex, with many brick types, and the temperature stress has a...

AI Technical Summary

Problems solved by technology

[0002] Blast furnace smelting requires hot air with a high enough temperature. The hot blast stove is a device that provides this hot blast. The current industrial hot blast stoves include internal combustion type, top combustion type, ball type, and external combustion type. Among them, the top combustion type hot blast stove has different The structure, such as the hot blast stove with patent No. WO0058526 and WO03071555, has the disadvantage that the collector is arranged inside the pre-combustion chamber, which is not penetrating. The lining of the pre-combustion chamber is relatively thick, and the configuration of air and gas channels is limited. It is relatively complex, with many brick types, and the temperature stress has a great influence on the partition wall and inner vertical wall of the collector, which causes a series of problems such as increased investment and difficult construction. How to improve the existing various top-fired hot blast stoves and make breakthroughs, strengthen The mixing of air and gas, simplifying the structure, reducing the difficulty of construction and saving investment has become a concern of metallurgical workers

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