High-silicon iron ore sintering pretreatment device based on centrifugal force principle

Abstract

The invention relates to the field of iron ore, in particular to a high-silicon iron ore sintering pretreatment device based on the centrifugal force principle. The technical problem is to provide a high-silicon iron ore sintering pretreatment device based on the centrifugal force principle. According to the technical scheme, the high-silicon iron ore sintering pretreatment device based on the centrifugal force principle comprises a pretreatment assembly, a mixing assembly, a discharging assembly, a control screen, a first electric sliding rail, a first sliding block and a first limiting cylinder; the pretreatment assembly is connected with the mixing assembly; and the pretreatment assembly is in contact with the first limiting cylinder. When the device is used, high-silicon iron ore crushed aggregates are automatically limited and fixed into a cylindrical shape, the position where the crushed aggregates are low in content is automatically detected, fine inner blended coal is automatically and uniformly injected into a cylindrical crushed aggregate mixture through centrifugation, meanwhile, the phenomenon that the fine inner blended coal is gathered on the lower portion of the cylindrical crushed aggregate mixture due to gravity is prevented, and the inner blended coal is uniformly distributed in the high-silicon iron ore.

Description

technical field [0001] The invention relates to the field of iron ore, in particular to a high-silicon iron ore sintering pretreatment device based on the principle of centrifugal force. Background technique [0002] The world's iron ore resources are concentrated in Australia, Brazil, Russia, Ukraine, Kazakhstan, India, the United States, Canada, South Africa and other countries. As the world's largest iron ore demander, China's own iron ore reserves are not small, but the grade is unfortunately relatively low. From the perspective of industrial economy, it is better to buy from Australia, Brazil and other countries rich in iron ore. import. Iron ore is an important raw material for iron and steel production enterprises. Natural ore (iron ore) gradually selects iron through procedures such as crushing, grinding, magnetic separation, flotation, and gravity separation. Iron ore is a mineral aggregate that contains iron element or iron compound and can be used economically. ...

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Problems solved by technology

[0005] In order to overcome the problem that high-silicon and low-grade iron ore is extracted from iron ore, in order to prevent the problem that a large amount of fayalite will be produced under the high temperature conditions of the traditional reduction method, the prior art proposes a method to reduce high-silicon iron ore into white carbon Black device, when the existing device makes high-silicon iron ore into pellets to be sintered, a binder is added to the broken iron ore and internal blending coal and stirred to obtain a crushed material mixture, and the density of the iron ore is greater than that of the internal blending Coal density, resulting in higher iron ore content in the lower half of the crushed material mixture, that is, the low content of coal blending in the lower half of the mixture, which seriously affects the subsequent sintering step. In addition, the existing device mixes high-silicon iron ore and internal blending coal At this time, there will be voids in the pre-configured iron ore crushed mixture, which seriously affects the operation of the subsequent internal coal blending ratio. In addition, when the existing device mixes the internal coal blending into the vertical iron ore crushed mixture , there will be a shortcoming of the phenomenon that the internal blending coal gathers in the lower part of the iron ore scrap mixture, and the technical problem is: to provide a high-silicon iron ore sintering pretreatment device based on the principle of centrifugal force

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