Control method for carbon content of sintered material

Abstract

The invention relates to the technical field of control methods and discloses a control method for a carbon content of a sintered material. The control method comprises the steps of comparing the carbon content of the sintered material obtained by analysis with a preset target carbon content; if the carbon content of the sintered material does not conform to the target carbon content, adjusting the usage amount of the sintered material until the carbon content of the sintered material conforms to the target carbon content and then performing conventional sintered production; performing feedback regulation on the target carbon content according to industrial demand indexes after the conventional sintered production, and continuing performing comparison regulation on the carbon content of the sintered material according to the target carbon content fed back. According to the control method, stability of the carbon content of the sintered material is guaranteed, the problem of fluctuation of the carbon content of the sintered material is effectively solved, the sintering production process is stable, and the aims of optimizing the sintering process, improving sintering efficiency and quality of sintered ore and reducing solid burn-up and post labor intensity are achieved.

Description

technical field [0001] The invention relates to the technical field of control methods, and is mainly applicable to a method for controlling the carbon content of sintered materials. Background technique [0002] During the production process, the sintering fuel not only provides heat for the high-temperature melting and liquid-phase bonding of sintering raw materials, but also provides heat for Fe 3O4 , Fe 2O3 It is reduced to FeO to provide a reducing atmosphere, and the level of fuel content affects the thickness of the combustion zone and the moving speed of the combustion zone, and affects the sintering air volume, negative pressure, temperature and other parameters. Therefore, fuel is an important factor affecting the output, quality, consumption and other indicators of sinter. [0003] The traditional sintering process uses a fixed fuel ratio method to control the carbon blending operation during the sintering process, and professional technicians issue a raw materi...

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Problems solved by technology

[0006] 2. The raw material composition of the ingredients changes rapidly and fluctuates greatly, which affects the stability of the carbon content in the sintered material

There are many kinds of raw materials and frequent changes in composition. Therefore, the stability of the physical and chemical composition of raw materials affects the stability of carbon content

[0008] 3. The fixed carbon in the sintering raw material fluctuates greatly, which affects the stability of the carbon content in the sintering material

[0010] 4. Manual operation affects the stability of carbon content in sintered material

[0011] The traditional sintering process is to manually collect and calculate the composition of sintering raw materials, but the raw materials are dynamically changed in the continuous batching production process

Manual operation cannot complete the dynamic tracking of the components of different batches of raw materials, and cannot grasp the effective components of raw materials in real time, resulting in inaccurate calculation and control of carbon content in sintered materials

Moreover, in production, process parameters and variables are changing, if relying on manual response, it is impossible to be timely, and there is a serious lag

The traditional manual operation only has a few parameters and variables with limited analysis and calculation. In the production, the inspection, analysis and calculation of the parameters and variables are often not comprehensive, resulting in inaccurate operation adjustment, which affects the stability of the carbon content in the sintered material.

[0012] 5. The traditional carbon distribution control cannot effectively record and save historical operation data, which is not conducive to the analysis and evaluation of the production process

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