Uniform material distribution device and method for rotary cooler

Abstract

The invention discloses a uniform material distribution device and method for a rotary cooler. The device comprises the rotary cooler, a plurality of groups of material distribution roller assemblies and multiple flow guide plates, wherein the rotary cooler comprises an annular cavity, and the annular cavity is composed of an inner wall and an outer wall; the plurality of groups of material distribution roller assemblies are uniformly arranged in the circumferential direction of the annular cavity, each group of material distribution roller assembly comprises a plurality of free rollers which are transversely arranged between the inner wall and the outer wall, the plurality of free rollers are positioned in the same inclined plane, the plurality of free rollers are arranged at intervals, and the intervals are gradually increased from top to bottom; and the flow guide plates are arranged below the material distribution roller assemblies, and one flow guide plate corresponds to one group of material distribution roller assemblies. The roller type segregation material distribution is adopted, so that the gap and density of a material layer of the material distribution in the rotary cooler are uniform, the phenomenon of inconsistent wind resistance caused by different densities of materials at all positions when cooling air penetrates through the material layer can be avoided, and the problem of short circuit of the cooling air can be avoided.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to a device and method for uniform material distribution of a rotary cooler. Background technique [0002] The current sinter vertical coolers are all in the form of fixed installation. [0003] After the hot sinter enters the vertical cooler, it moves downward by its own gravity without any control; the cooling air passes through the material layer from bottom to top in the form of blast for cooling. In actual use, due to the fixed material inlet distribution, the material distribution in the cooler is not uniform, and the falling speed of the material layer is also inconsistent, resulting in uneven particle size distribution of the hot sinter inside the cooler, which will appear in some places on the vertical section. The ore with small particle size gathers, and the ore with large particle size gathers in some places. In this way, in the process of the cooling w...

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Problems solved by technology

The result of the above phenomenon is: part of the hot ore cannot be cooled, and the discharged material after cooling has high-temperature red ore burning belt conveyor, and the large sintered ore caused by the secondary oxidation sintering inside the cooler is affected by the discharge equipment. Accidents that cannot be excluded

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