Raw material processing method and raw material processing device
A raw material processing and raw material technology, applied in the field of raw material processing equipment, can solve the problems of slight increase in recovery rate and deterioration of raw material layer ventilation, and achieve the effect of improving recovery rate and quality
Inactive Publication Date: 2019-02-15
POHANG IRON & STEEL CO LTD
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Problems solved by technology
However, the recovery rate of the sintered ore charged by segregation is slightly improved. In the case of increasing the carbon content of the sintered ore blending raw material, the sintered ore in the lower layer is excessively sintered with the intensification of heat accumulation in the lower layer. Problems such as deterioration of the air permeability of the raw material layer
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[0041] Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. However, the present invention is not limited to the embodiments disclosed hereinafter, and can be implemented in various ways different from each other. It should be noted that the embodiments of the present invention are provided to make the disclosure of the present invention complete and to fully convey the scope of the invention to those having ordinary knowledge in the art. The drawings may be exaggerated or enlarged in order to illustrate the embodiments of the present invention, and the same reference numerals represent the same elements in the drawings.
[0042] figure 1 is a schematic diagram showing a raw material processing apparatus according to a first embodiment of the present invention, figure 2 It is a schematic diagram showing the loading unit of the raw material processing apparatus according to the first embodiment of the present inve...
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Abstract
The invention relates to a raw material processing method and a raw material processing apparatus suitable for the method. The raw material processing method includes a process of preparing a raw material, a process of preparing an additive, a process of loading the raw material in a lower portion of a trolley traveling along a moving path in one direction, a process of mixedly loading or alternatively loading the upper portion of the trolley with the raw material and an additives, and a process for causing the trolley to move in the order of an ignition section and a sintering section of the moving path and conducting thermal processing, thereby causing cooling delay of the upper portion of the raw material layer during the processing of the raw material, and improving the quality and recovery rate of the raw materials after completion of the treatment.
Description
technical field [0001] The present invention relates to a raw material processing method and a raw material processing device, and more specifically relates to a raw material processing method and a raw material processing device capable of delaying the cooling of the upper part of the raw material layer during the raw material processing process to improve the quality and recovery rate of the processed raw material. Background technique [0002] Sintered ore accounts for more than 80% of the main raw materials used in the blast furnace process of steelworks. This sintered ore is produced by mixing, for example, powdered iron ore, auxiliary raw materials, limestone, powdered coke, anthracite, etc. Finally, the fired sintered ore is discharged. [0003] On the other hand, generally, a Dwight Lloyd type sintering machine is widely used as a sintering machine suitable for the sintering process of the sintered ore blended raw material. At this time, the process of sintering th...
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IPC IPC(8): C22B1/22C22B1/24
CPCC22B1/22C22B1/2406
Inventor 李承纹
Owner POHANG IRON & STEEL CO LTD