Automatic blending material control system for sintering production

Abstract

The invention relates to an automatic blending material control system for sintering production, comprising a plurality of blending material bins, a blending material total belt, a plurality of weighting level gages, a plurality of weighting belts, pressure sensors, a plurality of blending material discs, a plurality of motors and a plurality of frequency converters, wherein the weighting level gages are respectively arranged in the plurality of blending material bins; the weighting belts are arranged correspondingly to the plurality of blending material bins; and the pressure sensors are arranged on the weighting belts. The automatic blending material control system is characterized in that closed loop PID (Proportion Integration Differentiation) feedback control is set on the last one of the plurality of blended ore blending material bins, which is closest to the outlet of an ultimate sintering total blending material; and the blending material flow rate deviation exists on other blended ore blending material bins is compensated by the closed loop PID feedback control of the last blended ore blending material bin, wherein the closed loop PID feedback control is set on each dust blending material bin, each cold return ore blending material bin, each quicklime blending material bin and each coke powder blending material bin.

Description

technical field [0001] The invention relates to a fine ore processing system used in iron and steel metallurgy, in particular to an automatic batching control system used in sintering production. Background technique [0002] Generally speaking, the fine ore processing system in the iron and steel industry is to first mix various powdery iron-containing raw materials into an appropriate amount of fuel and flux, then add an appropriate amount of water in batches, mix and pelletize, and finally use it on the sintering equipment. A series of physical and chemical changes occur in the material, and the powder ore particles are bonded into blocks. [0003] At present, belt-type exhaust sintering machines are widely used in production to produce sintered ore. The technological process of sintering production mainly includes the proportioning of sintering raw materials, that is, adding an appropriate amount of fuel and flux into powdery iron-containing raw materials and making the...

AI Technical Summary

Problems solved by technology

[0006] With the continuous development and expansion of the production scale of iron and steel enterprises, the requirements for the accuracy and reliability of the batching system, which is the core part of sinter production, are getting higher and higher, and the traditional manual operation is far from being able to obtain stable control quality.

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