Search International and National Patent Collections

1. (WO2018082001) NOVEL TOP-COMBUSTION HOT BLAST STOVE

Pub. No.:    WO/2018/082001    International Application No.:    PCT/CN2016/104518
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Nov 05 00:59:59 CET 2016
IPC: F23D 14/02
F23D 14/62
C21B 9/02
Applicants: ZHENGZHOU ANNEC INDUSTRIAL CO., LTD
郑州安耐克实业有限公司
Inventors: LI, Fuchao
李富朝
Title: NOVEL TOP-COMBUSTION HOT BLAST STOVE
Abstract:
A novel top-combustion hot blast stove, comprising a mixing chamber (1), a combustion chamber (2) and a regenerator chamber (3); walls of the mixing chamber (1) consist of a cone roof wall on the upper portion and a column cavity wall on the lower portion, the outside of the column cavity wall being provided with an air inlet (7), the outside of the cone roof wall being provided with a coal gas inlet (4), the column cavity wall being perpendicularly provided, for mounting a plurality of layers of air flow channels enabling the air to flow rotatably upwards, the diameter of a circumfluent cyclone formed by the air flow jetted from each layer of the air flow channel being the same; the cone roof wall is provided in a circular cone shape, for mounting a plurality of layers of coal gas flow channels enabling the coal gas to flow rotatably downwards, the diameter of a circumfluent cyclone formed by the coal gas jetted from each layer of the coal gas flow channel being different, the diameter of the circumfluent cyclone on the bottom layer being greater than the diameter of the circumfluent cyclone on the upper layer, and the speed of the coal gas jetted from the coal gas flow channels being greater than the speed of air flow jetted from the air flow channels, such that the coal gas and the air form a plurality of layers of concentric cross-mixing circumfluent cyclones with different diameters in the mixing chamber (1), and then enter the combustion chamber (2) to combust. The structure and the gas mixing manner of the mixing chamber (1) of the present apparatus enable the sufficient combustion of the coal gas, achieving energy conservation and emission reduction.