Fluidized roasting device for iron ore reduction and its application method

Abstract

The invention relates to the technical field of iron ore reduction, in particular to a fluidized roasting device for iron ore reduction and its use method, which includes a magnetized roasting box and an air pump fixed on the base, and a fluidized roasting box runs through the inside of the magnetized roasting box. The tube also includes a screening box fixed on the base, a material box is fixed on the outer wall of the screening box, a screening mechanism is arranged inside the screening box, a crushing mechanism is arranged at the lower end of the screening mechanism, and a motor and a sorting Mechanism, the motor respectively drives and connects the screening mechanism and the sorting mechanism. The air outlet of the air pump conveys the crushed iron ore scraps to the inner side of the lower part of the screening box through the feeding pipe, and the lower outlet of the material box is connected with the feeding pipe. The upper and lower ends of the pipe communicate with the lower inner side and the upper inner side of the screening box respectively. The fluidized state roasting device for iron ore reduction and its use method realize the screening of iron ore, improve the reduction and recovery efficiency of iron ore, save time and labor, simplify procedures, and improve production efficiency.

Description

technical field [0001] The invention relates to the technical field of iron ore reduction, in particular to a fluidized roasting device for iron ore reduction and an application method thereof. Background technique [0002] The reduction and refining of iron ore by fluid magnetization roasting has a high iron recovery rate and fine iron ore grade. The existing application number 201810508876.5 discloses a fluidized roasting device, which uses airflow to flow the pre-crushed iron ore powder in a fluid state through a magnetic field generator and heats it at the same time, so that the iron ore powder is recovered after reduction , but in this prior art, due to the different sizes of particles in the pre-crushed iron ore powder, there is no screening function, resulting in incomplete reduction of larger particles, and it is easy to cause blockage of the fluidized pipeline, which also needs to be refluxed after sorting Fragmentation treatment requires many procedures and high l...

AI Technical Summary

Problems solved by technology

The existing application number 201810508876.5 discloses a fluidized roasting device, which uses airflow to flow the pre-crushed iron ore powder in a fluid state through a magnetic field generator and heats it at the same time, so that the iron ore powder is recovered after reduction , but in this prior art, due to the different sizes of particles in the pre-crushed iron ore powder, there is no screening function, resulting in incomplete reduction of larger particles, and it is easy to cause blockage of the fluidized pipeline, which also needs to be refluxed after sorting Fragmentation treatment requires many procedures and high labor intensity. The reduced iron ore powder and waste residue cannot be screened, resulting in an increase in procedures, reducing production efficiency and increasing the complexity of the procedure. In view of this, we propose an iron ore Fluidized roasting device for stone reduction and its application method

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