Setting method of moisture control parameters for sintering granulation to effectively suppress raw material flow fluctuation

A technology of flow fluctuation and control parameters, applied in the direction of flow control, non-electric variable control, adaptive control, etc., can solve problems such as flow fluctuation of mixture adding water, water disturbance of mixture, and inability to stabilize moisture well, to ensure The effect of stable operation, reduction of moisture fluctuation, and suppression of uneven mixing and granulation process

Active Publication Date: 2011-12-28
CENT SOUTH UNIV
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Problems solved by technology

The actual production shows that due to the control of mixed granulation moisture, there are some unstable interference factors, such as the change of silos between the mixed ore silos or quicklime silos, or one of them is broken due to a fault. These will lead to large fluctua

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  • Setting method of moisture control parameters for sintering granulation to effectively suppress raw material flow fluctuation
  • Setting method of moisture control parameters for sintering granulation to effectively suppress raw material flow fluctuation
  • Setting method of moisture control parameters for sintering granulation to effectively suppress raw material flow fluctuation

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[0051] Example 1:

[0052] Such as figure 1 As shown, the feedforward water addition control structure of the present invention mainly consists of raw material working condition classification, parameter self-adjustment and feedforward water addition model, real-time raw material flow rate and change rate of mixed mine, real-time raw material flow rate and change rate of quicklime, etc. After the value is fuzzified, the fuzzy comment set of the mixed ore and the quicklime is obtained, and then the working conditions of the two are obtained through the raw material working condition evaluation model, the expert rules are inquired, the quicklime consumption factor and the water correction factor are adjusted online, and these two parameters are directly applied Based on the calculation of the feedforward water addition model, the water addition flow rate of the mixing cylinder is finally obtained.

[0053] The real-time raw material flow rate is the instantaneous total amount of raw...

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Abstract

The invention discloses a sintering granulating moisture control parameter tuning method for effectively inhibiting raw material flow fluctuation. The method comprises the following steps: firstly, carrying out fuzzification treatment on such four process variables as blended ore real-time flow, change rate of the blending ore real-time flow, quicklime real-time flow and change rate of the quicklime real-time flow; secondly, obtaining the current working condition of the raw materials according to a raw material working condition evaluation model; and finally, realizing online adjustment of the factors of the consumed moisture of quicklime and the correction factors of the adding water flows based on the established expert rules according to the working conditions. The method has the following beneficial effects: unstable moisture occurring due to drastic fluctuation of the mixing granulation adding water flows caused by sudden change of the raw material flow can be effectively inhibited, thus ensuring the stable and smooth operation of the sintering process and improving the yield and quality of sintering ore.

Description

technical field [0001] The invention belongs to the technical field of sintering production process control, and relates to a sintering granulation moisture control parameter setting method that can effectively suppress fluctuations in raw material flow. Background technique [0002] During the steel sintering process, the mixed ore, solvent, fuel, etc. are mixed and granulated to obtain a mixture with a good particle size distribution, which can increase the air permeability of the sintered material layer, ensure the smooth progress of the sintering production process, and increase the output of sintered ore and Quality has an extremely important guiding significance. Moisture control is a key link in the mixing and granulation process. Realizing the self-adjustment of quicklime consumption moisture factor and water flow correction factor has a very important impact on stabilizing the moisture content of the mixture. [0003] The current moisture control in the mixing and ...

Claims

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Application Information

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IPC IPC(8): G05B13/02G05D7/00
Inventor 吴敏王春生焦国华赖旭芝陈略峰曹卫华陈鑫安剑奇
Owner CENT SOUTH UNIV
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