Process for processing industrial waste residue of ferroalloy industry

An industrial waste slag, ferroalloy technology, applied in the direction of manufacturing tools, glass manufacturing equipment, etc., can solve the problems of occupying land and no economic benefits, and achieve the effect of reducing the use of energy

Inactive Publication Date: 2017-11-03
青岛青力环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment method is to bury or make cement additives (auxiliary materials) after standing and cooling, which occupies land and has no economic benefits

Method used

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Embodiment Construction

[0016] A kind of technology of processing ferroalloy industry industrial waste slag of present embodiment is characterized in that: comprise the following steps:

[0017] a) Put the molten waste slag into the tempered electric furnace, detect the content of each oxide in the waste slag, add silica powder when the acidity coefficient is less than 1.6, and the acidity coefficient refers to acidic oxide / basic oxide, mainly It is the content of silicon dioxide and aluminum oxide / the content of calcium oxide and magnesium oxide, and then briefly raise the temperature to 1500 °C;

[0018] b) Put it into the heat preservation electric furnace. The function of the heat preservation electric furnace is to keep the molten waste slag warm on the one hand, and to temporarily store the molten waste slag on the other hand, so that the molten waste slag can always maintain a certain liquid level, so that the molten waste slag can flow at a certain flow rate. Stable outflow, convenient for ...

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PUM

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Abstract

The invention relates to a process for processing an industrial waste residue of the ferroalloy industry. The process comprises the following steps: a) adding the waste residue at the molten state into a tempering electric furnace, detecting the contents of various oxides in the waste residue, adding a silicon powder when the coefficient of acidity is less than 1.6, then temporarily raising the temperature to 1500 DEG C, wherein the coefficient of acidity is the contents of acidic oxides/basic oxides, mainly referring to the contents of silicon dioxide and aluminum oxide/ and the contents of calcium oxide and magnesium oxide; b) adding into a thermal electric furnace; c) flowing out from the thermal electric furnace to a centrifugal machine, producing an inorganic fiber; d) entering a plate (strip) production line, sequentially forming a vertical fiber through a pendulum bob, crimping, pressing, and solidifying to prepare a rock wool plate product. The waste reside does not need to stand and cool to waste the energy, the original heat of the waste residue is fully utilized, the use of the energy is reduced, the waste residue at the molten state is fully utilized and processed into a mineral wool product, the land is not occupied, and the economic benefit is good.

Description

technical field [0001] The invention relates to a process for treating industrial waste slag in the ferroalloy industry. Background technique [0002] During the production of ferroalloys (ferromanganese, ferronickel, chromium, ferrosilicon and pig iron, etc.), a large amount of waste slag (1:1 to 1:2) will be produced. The main components of the waste slag are calcium oxide, magnesium oxide, di Silicon oxide, aluminum oxide, iron oxide and other trace metal elements. When coming out of the furnace, the waste slag is in a molten state with a temperature of 1200-1500°C. The traditional treatment method is to bury or make cement additives (auxiliary materials) after standing for cooling, which occupies land and has no economic benefits. Contents of the invention [0003] The present invention aims to solve the above problems, and provides a process for treating industrial waste slag in the ferroalloy industry. It does not need to waste heat by cooling the waste slag, fully...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/06C03B37/00
CPCC03C13/06C03B37/00
Inventor 于阔沛潘文杰隋成富宁常飞
Owner 青岛青力环保设备有限公司
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