Burning through point localization method suitable for updraft sintering machine and positioning system thereof

Abstract

The invention discloses a burn-through point positioning method applicable for an updraft sintering machine and a positioning system thereof. Atmospheric temperature is detected by temperature thermocouples which are arranged on a petticoat pipe close to a batch layer, the temperature thermocouple with the highest temperature and two adjacent temperature thermocouples are found out, and the burn-through point position is calculated by utilizing the spline interpolation function according to reference positions of the three atmospheric temperatures. By using the positioning method and system, the burn-through point positioning is more precise than sinter point positioning of down-draft sintering. At the same time, the positioning method and system have good functions on the lumpiness of lump sinters, rolling drum rate and desulfurization rate, effectively improve smelting quality of blast furnaces in subsequent procedures, save energy and lower consumption.

Description

Technical field: [0001] The invention relates to a detection method in the ISP process, in particular to a positioning method and a positioning system for the burn-through point of the sintering layer of the blast sintering machine in the non-ferrous metallurgy ISP closed blast furnace smelting lead and zinc process. Background technique: [0002] The measurement technology of the position of the burn-through point of the sintering machine is an important operation index of the qualified degree of the sintered block. At the burn-through temperature, it travels on the sintering belt for a certain distance. After cooling, it falls from the tail of the machine and passes through the crusher to form a qualified sintered block with a certain hardness, lumpiness, and residual sulfur rate required by the blast furnace. Therefore, at a certain burn-through temperature, if the burn-through point is at the burn-through point specified by experience, it is easy to meet the above qualit...

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Problems solved by technology

[0005] In order to solve the defect that the position of the burn-through point of the sintered material layer is difficult to accurately locate in the blast sintering machine and production, and to overcome the reality that the position of the burn-through point of the material layer in the actual operation drifts greatly in nine bellows, the present invention aims to provide a suitable for The burn-through point positioning method and its positioning system of the blast sintering machine make the positioning accuracy of the burn-through point much higher than that of the suction sintering point. To achieve a good effect, effectively improve the smelting quality of the blast furnace in the follow-up process and save energy and reduce consumption

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