Method for determining proper pelletization parameters of sintering mixer based on numerical simulation

Abstract

The invention discloses a method for determining proper pelletization parameters of a sintering mixer based on numerical simulation. The method is characterized in that the moving state of materials in the mixer under different pelletization parameter combination conditions is subjected to numerical simulation through PFC (Particle Flow Code) numerical simulation software; the moving state of the materials is observed according to the simulation result; and the corresponding pelletization parameters of the materials in a rolling region near a dropping region are used as standards and are used as judging standards of the proper pelletization parameters of the mixer to determine the proper pelletization parameters of the mixer in the actual production. The moving state of the materials in the mixer is simulated through the numerical simulation software; a pelletization test is not needed; and the labor, the materials and the money are reduced. The proper pelletization parameters of the mixer are determined through observing the moving state of the simulated materials in the mixer. Compared with a determining method through observation in a pelletization test process, the method is simpler, more convenient and more visual. In addition, the repeated observation can be realized, and the defects that the observation in the test process is unclear, but the repeated observation cannot be realized are avoided.

Description

technical field [0001] The invention relates to a method for determining suitable granulation parameters of a sintering mixer, belonging to the technical field of sintering in the metallurgical industry. Background technique [0002] The air permeability of the sinter mixture is an important factor affecting the output and quality of sinter, and the granulation effect of the mixture is the key to determine the air permeability of the mixture. Under certain raw material conditions, besides the granulation water and the addition of binder, the factors affecting the granulation effect of the sintered mixture are the selection of the granulation parameters of the cylinder mixer, including the filling rate and the roundness. drum speed. The difference in the filling rate and the rotating speed of the cylinder determines the movement state of the material in the cylinder, which directly affects the granulation effect of the mixture. Therefore, in the determination of granulation...

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Problems solved by technology

[0010] The purpose of the present invention is to provide a new method for determining the suitable granulation parameters of a mixer that is time-saving, labor-saving, accurate and convenient, and can intuitively judge the movement state of materials, so as to overcome the experimental problems brought about by the traditional method for determining the suitable granulation parameters of a mixer. Large amount, long test period, difficulty in judging the movement state of materials during the test process, and industrial tests affecting sintering production

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