An integrated high-efficiency steel slag grinding and iron recovery system and method

A steel slag and high-efficiency technology, which is applied in the field of steel slag integrated high-efficiency grinding and iron recovery systems, can solve the problems of difficulty in large-scale comprehensive utilization of steel slag, low iron recovery rate, and high energy consumption

Active Publication Date: 2021-11-16
成都建筑材料工业设计研究院有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This technology route generally has the problems of low grinding efficiency, high energy consumption and low iron recovery rate, and it is difficult to comprehensively utilize steel slag on a large scale

Method used

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  • An integrated high-efficiency steel slag grinding and iron recovery system and method
  • An integrated high-efficiency steel slag grinding and iron recovery system and method
  • An integrated high-efficiency steel slag grinding and iron recovery system and method

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Embodiment

[0056] Cooperate see figure 1 , the present embodiment provides a steel slag integrated high-efficiency grinding and iron recovery system 10, which includes a steady flow bin 11, the steady flow bin 11 has a steel slag feeding port 12; the steady flow bin 11 is connected to a roller press 13, and the roller press The machine 13 is connected to the vibrating screen 14, the return port of the vibrating screen 14 is connected to the roller press 13, and the discharge port is connected to the magnetic separator 16; one way of the magnetic separator 16 is connected to the intermediate storage bin 17, and the other is connected to the slag steel Storage 18; the middle storage bin 17 is connected to the vertical mill 19, and the vertical mill 19 is connected to another magnetic separator 20 all the way, and the magnetic separator 20 is connected to the iron powder storage 21 one way, and the other way is connected to the entrance of the vertical mill 19, The other road of the vertica...

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Abstract

The invention relates to the field of steel slag treatment and utilization, aims to solve the problems of low grinding efficiency, high energy consumption and low iron recovery rate in the existing steel slag recovery, and provides an integrated high-efficiency steel slag grinding and iron recovery system and method, wherein the steel slag is integrated High-efficiency grinding and iron recovery method, feed the steel slag flow into the steady flow bin through the steel slag feeding system; after the steel slag enters the roller press, the roller press squeezes and crushes the steel slag until the steel slag particles produce microcracks; The steel slag stream with microcracks caused by extrusion and crushing enters the vibrating screen for sieving and then enters the vertical mill for crushing and grinding. The iron and iron-containing substances exported from the grinding disc leave the vertical mill and enter the magnetic separator for further purification to produce iron fine powder products. The invention has the beneficial effects of high grinding efficiency, low energy consumption and high iron recovery rate.

Description

technical field [0001] The invention relates to the field of steel slag treatment and utilization, in particular to a steel slag integrated high-efficiency grinding and iron recovery system and method. Background technique [0002] Steel slag is an industrial by-product discharged during the steelmaking process. It has high iron content, poor grindability, and poor volume stability. [0003] At present, my country's annual steel production has exceeded 300 million tons, and the steel slag output is about 40 million tons, with a utilization rate of about 10%. In addition, more than 200 million tons of untreated steel slag have been piled up for many years, covering an area of ​​more than 30,000 mu. [0004] Therefore, the treatment and comprehensive utilization of steel slag can not only produce huge economic benefits, but also huge social and environmental benefits. At present at home and abroad, steel slag is mostly used for land reclamation, or as road base material, its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00B02C23/02B02C23/00B02C4/02B02C23/14B07B1/28B03C1/02B02C15/00B08B1/00
CPCB02C4/02B02C15/00B02C21/00B02C23/00B02C23/02B02C23/14B02C2201/06B03C1/02B07B1/28B08B1/005
Inventor 彭林山刘建
Owner 成都建筑材料工业设计研究院有限公司
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