Hangzhou Iron And Steel 750m3 Blast Furnace Off The Wet Blast Applied Research

HZ STEEL is located in the middle and lower reaches of Changjiang River, belong to a subtropical, moist and monsoon climate, it's warm and rainy, the oceanic climate is a little bit apparent, and relative humidity is a little bit high, moisture content is big, but the moisture content of blast has a little bit influence to smelting blast furnace, the blast blower increase the dehumidifying and blast device, and it will produce huge economic benefits, such as reducing the coke rate, increasing coal injection, making smooth movement of increase production, and reducing the power dissipation of blower.This paper focuses on the dehumidifying and blast of 750m3 blast furnace in HZ STEEL. Firstly it carries on the design calculation to the important component of dehumidifying and blast system, such as dehumidifier, cooling-water machine, and cooling tower, each machine of performance is analyzed, the outstanding manufacturer is selected, and check for its performance.Secondly, this paper makes analysis and the overall design according to HZ STEEL existing fan characteristics and geographical location; it also makes a brief arrangement for the construction process combining with the production practice.