Fluctuation treatment method of sinter bed based on master pumping regulation

Abstract

The invention relates to a sintering production process of a mixed material and particularly relates to a fluctuation treatment method of a sinter bed based on master pumping regulation. The method provided by the invention completes the sintering process in a qualified manner by monitoring the thickness of a bed on a vehicle to determine the master pumping rotating speed and adjusting the sintering time of a skip car if the bed is thick, so that the sinter quality is improved, the drum strength is improved, the rate of return mine of sintering is reduced, and the circular material amount is reduced. The problem of red ores easy to appear when the bed is thick is avoided, and the service life of a product belt is prolonged.

Description

technical field [0001] The invention relates to a sintering production process of a mixture, in particular to a method for processing fluctuations in a sintered material layer based on main extraction control. Background technique [0002] During the sintering production process, due to the fluctuation of raw material properties and water addition in the mixing and granulation process, the moisture content, particle size and distribution state of the mixture in the ore tank will easily change, which will inevitably cause fluctuations in the sintering material layer. The fluctuation of the sintering material layer not only affects Local air permeability, more seriously, affects the uniformity of airflow distribution in the entire sintering plane material layer, resulting in uneven heat distribution, less liquid phase formation in some areas, reduced sinter drum strength, and increased powder rate, especially the material When the layer is too thick, if the control measures ar...

AI Technical Summary

Problems solved by technology

[0002] During the sintering production process, due to the fluctuation of raw material properties and water addition in the mixing and granulation process, the moisture content, particle size and distribution state of the mixture in the ore tank are likely to change, which inevitably causes fluctuations in the sintering material layer. The fluctuation of the sintering material layer not only affects Local air permeability, more seriously, affects the uniformity of airflow distribution in the entire sintering plane material layer, resulting in uneven heat distribution, less liquid phase generation in some areas, reduced sinter drum strength, and increased powder rate, especially When the layer is too thick, if the control measures are not appropriate, the mixture will not be burned through the sintering machine, and the red ore will be pushed. The large high-temperature sintering ore is not easy to cool in the ring cooler, and it is easy to burn the finished belt during transportation. Serious threat to belt life and material supply

In the production process, when the material layer is too thick, control methods such as increasing the main exhaust fan and reducing the machine speed are usually adopted. The production team only determines the adjustment method and adjustment amount according to their own experience, and there is no standardized and quantitative process parameter control plan. , there are problems such as large control differences, great impact on sinter quality, low success rate of material layer fluctuation treatment, etc.