Control method for efficient utilization of waste heat of sintering circular cooler

Abstract

The invention discloses a control method for efficient utilization of waste heat of a sintering circular cooler, which comprises the following steps: hot sinter at the tail of a sintering machine is crushed by a single roller and then enters a circular cooler trolley along a hot ore chute, segregation is realized under the action of a guide plate, and the hot sinter has the particle size distribution that the lowest layer is large-particle sinter on the circular cooler and the lower layer is small-particle sinter; the middle layer is small particles, and the uppermost layer is middle-size-fraction sintered ore; a high-temperature-resistant camera is installed on the side wall of the hot ore chute and below the single roller, pictures are intercepted in real time and used for analyzing the particle size distribution and the average particle size of the hot sintered ore, and therefore the frequency of a circulating fan and an air blower is adjusted; segregation material distribution of the circular cooler is beneficial for improving the cooling efficiency of the circular cooler and reducing the power consumption of a fan; the sensible heat content of the sinter is comprehensively analyzed and judged through multiple factors, adjustment is made in time, the sintering cooling system is stabilized while energy is saved, consumption is reduced, and the quality of the sinter is improved; and the precise adjustment of the frequency of the fan reduces the loss of equipment and the waste of energy.

Description

technical field [0001] The invention belongs to the technical field of sintering machines, and in particular relates to a control method for efficient utilization of waste heat of a sintering ring cooler. Background technique [0002] The hot sinter produced by the sintering machine is cooled by the ring cooler and then enters the screening system, and the finished sinter is sent to the blast furnace after granulation. Under the production organization of saving energy, reducing consumption, reducing cost and increasing efficiency, the efficient utilization of waste heat in hot sintering has become one of the great potentials for cost reduction in the sintering process. [0003] At present, with the gradual enlargement of the sintering machine, the cooling area of ​​the annular cooler matches it. Generally, there are 5-6 blowers for blast cooling. The 1# fan is a circulating fan. The high-temperature flue gas (through the high-temperature flue and the medium-temperature flu...

AI Technical Summary

Problems solved by technology

The above method only considers the waste heat utilization from the perspective of the ring cooler, and fails to analyze and judge according to the sample conditions of hot sintered ore, and cannot make corresponding parameter adjustments in time

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