A Vertical Rectangular Cooling Furnace for Sintered Ore

Abstract

The present invention relates to a vertical rectangular cooling furnace for sintered ore. The corner triangular area in the cooling furnace is provided with a corner wind suppressing device, and the surrounding wall areas in the cooling furnace are provided with a side wall wind suppressing and guiding device. The corner wind suppressing device comprises an upper base plate, a lower base plate and a vertical plate, the upper base plate and the lower base plate are arranged in parallel and are fixedly connected with the furnace body of the cooling furnace, and the vertical plate is connected with the upper base plate and the lower base plate. Fixed connection; the side wall wind suppression deflector includes a wind suppression deflector and track steel, the angle between the wind suppression deflector and the furnace wall is 35-50 degrees, and the wind suppression deflector The bottom edge of the lower bottom edge is close to the refractory material of the furnace wall, the upper top edge of the wind-suppressing deflector is fixedly connected to the waist of the rail steel, and one leg of the rail steel is fixedly connected to the bottom surface of the wind-suppressing deflector. The two sides of the wind-suppressing deflector are fixedly connected to adjacent vertical plates respectively. The sintered ore cooling effect of the invention is good, the flue gas temperature recovered from the top of the furnace is high, and the recovery and utilization efficiency of waste heat is high.

Description

technical field [0001] The invention relates to a vertical rectangular cooling furnace for sintered ore, which belongs to the technical field of iron and steel metallurgy sintering. Background technique [0002] Traditional sinter cooling equipment generally adopts annular coolers, and the cooling effect can meet the process requirements. However, the annular coolers have problems such as high air leakage rate, large dust, and low recovery efficiency of sinter sensible heat. [0003] For this reason, in recent years, sinter workers at home and abroad have researched and developed a new type of sinter cooling equipment --- sinter vertical cooling furnace, which can well overcome and solve the problem of high air leakage rate, large dust, and sinter The problem of low heat recovery efficiency. The specific structure of the sinter vertical cooling furnace can refer to the Chinese patent document whose publication number is CN207596924U (named: a kind of sinter ventilation type...

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Problems solved by technology

[0005] However, the applicant found in practice that the vertical rectangular cooling furnace for sintered ore is likely to cause a serious imbalance in the cooling air flow in the furnace, resulting in poor cooling effect of the sintered ore, and even vicious production accidents such as "running red ore" and the temperature of flue gas recovered from the furnace top. High, waste heat recovery and utilization efficiency is low

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