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A process for automatic gas injection feeding of rock wool electric melting furnace

An electric melting furnace and automatic technology, applied in the field of rock wool production, can solve the problems of uneven acidity coefficient of slag, increased labor force, high temperature, etc., and achieve the effects of reducing labor intensity and production cost, improving product quality, and adding uniform auxiliary materials

Active Publication Date: 2022-05-06
潍坊奥华环保新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weigh the weight of the auxiliary materials before adding. If the addition is not complete, the amount of addition is prone to deviation, resulting in unstable acidity coefficient of slag and affecting the quality of cotton.
Two ways of adding, auxiliary materials are easy to accumulate on the surface of slag, melting is difficult, auxiliary materials and slag are mixed unevenly, and the acidity coefficient of slag is uneven
In addition, manual addition through the auxiliary material port not only requires more labor and high labor intensity, but also because the temperature of the slag reaches above 1350 degrees, the ambient temperature of the electric furnace is high, and there are potential safety hazards for the operators during the labor process

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0021] A process for producing an automatic gas injection feeding system for a rock wool electric melting furnace, the specific method and steps of which are:

[0022] 1. Use air pressure to extract low-density, high-fineness auxiliary materials from the sealed tank, calculate the amount of different auxiliary materials, input them into the system, and control the automatic quantitative addition of auxiliary materials through the computer;

[0023] 2. After receiving the material loading signal, the pneumatic flapper valve on the upper part of the weighing bin and the feeding machine will automatically open, and the auxiliary materials will be transported to the weighing bin through the feeding machine, and the weight of the auxiliary materials will pass through the four weighing sensors installed at the bottom of the bin. It is transmitted to the computer on the operating table, and the feeding machine automatically stops feeding after reaching the set added weight value, and ...

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PUM

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Abstract

The invention provides an automatic gas injection and feeding process for the production of rock wool electric melting furnace, which uses gas delivery to automatically blow and spray the weighed acidic oxide into the electric melting furnace for producing rock wool. The hot molten slag material is stirred and fused to achieve the effect of fast melting and good uniformity of reaction. The nitrogen transport used has a protective effect on the electrodes, and a dust collection cover is installed on the top to suck away the traces of dust that appear by dust removal negative pressure. Effect.

Description

technical field [0001] The invention relates to the field of rock wool production, in particular to an automatic gas injection feeding process for producing rock wool electric melting furnaces. Background technique [0002] Blast furnace slag is currently the largest slag discharged in the metallurgical industry. Most of the blast furnace slag is used to make building materials such as slag cement. Although cement with good adhesion and high strength can be prepared, its added value is low. At the same time, a large amount of waste heat is not effectively utilized when the blast furnace slag is removed. [0003] Slag cotton is a kind of fine cotton filament insulation material made of industrial waste - slag, through melting and blowing processes. The production raw materials are composed of blast furnace slag and a certain amount of regulator, of which blast furnace slag accounts for about 80%- 90%, and the acidity coefficient is generally around 0.95, which plays a leadi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B3/00
CPCC03B3/00Y02P40/50
Inventor 张述钧刘建平
Owner 潍坊奥华环保新材料科技有限公司