Vertical sinter ore cooling machine capable of efficiently recycling sensible heat of sinter ores

Abstract

The invention discloses a vertical sinter ore cooling machine capable of efficiently recycling the sensible heat of sinter ores, which pertains to the technical field of sintering equipment and is used for preventing air leak in the cooling course of sinter ores and effectively recycling the sensible heat of the sinter ores. The technical proposal of the invention is that: the cooling machine consists of a feeding part, a cooling part and a conveying part; the cooling part comprises a vertical closed body, a hot wind pipeline, a blower, as well as a hopper, an upper sealing valve, a pre-storing chamber, a lower sealing valve, a heat exchanging chamber, a wind distributing board, an isopiestic wind chamber and a discharging channel which are in sequence arranged on the body from top to bottom; an annular wind chamber is arranged between the pre-storing chamber and the heat exchanging chamber; the annular wind chamber is communicated with the hot wind pipeline; the isopiestic wind chamber is communicated with the blower; and wind shields and ore falling openings are distributed evenly on the wind distributing board . The vertical sinter ore cooling machine has the following advantages of: 1. an air leak rate near to 0; 2. improved gas-solid heat exchange efficiency of the cooling machine; 3. raised quality of the recycled hot air; and 4. being beneficial to increasing the utilization rate of exhaust-heat boilers. Based on the advantages, the vertical sinter ore cooling machine is expected to be used commonly as an upgraded replacement of the existing sinter cooling machine.

Description

technical field [0001] The invention relates to a sintering equipment, in particular to a sintering ore cooler capable of reducing the air leakage rate, comprehensively improving the waste gas grade, and stabilizing the temperature of a heat source for waste heat recovery, belonging to the technical field of sintering equipment. Background technique [0002] The energy consumption of the sintering process of the iron and steel plant is second only to the iron-making process, and generally accounts for 10% to 20% of the total energy consumption of the iron and steel enterprises. Compared with advanced countries, the energy consumption index of my country's sintering process is quite different, and the average energy consumption per ton of sintering ore is 20kgce higher. According to the heat balance test data of a steel plant in Japan, the sensible heat of sinter accounts for 28.2% of the heat income of the sintering machine, and the sensible heat of waste gas accounts for 31...

AI Technical Summary

Problems solved by technology

However, its maintenance workload is heavy, and the problem of low sinter waste heat recovery rate cannot be fundamentally solved. Therefore, it is imminent to develop and research sinter cooling equipment that can efficiently recover waste heat

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