One-stage mineral wool technology high-effectly utilizing industrial furnace smelting slag heat

A technology of industrial furnaces and mineral wool, which is applied in the manufacture of tools and glass manufacturing equipment, etc., and can solve the problems of limited reduction in consumption

Inactive Publication Date: 2003-05-21
杨铧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some new technologies (such as heating air supply, oxygen-enriched air supply, etc.) ca...

Method used

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Embodiment Construction

[0011] Take the use of blast furnace slag for new one-step mineral wool production as an example: a blast furnace in a factory produces slag every half an hour, and the time for each slag discharge is 25-30 minutes, and the amount of slag produced each time is 10-13 tons. The temperature is 1360-1430°C, and the acidity coefficient of slag is 0.85-1.05.

[0012] The concrete method of implementing the present invention in this blast furnace is: the high-temperature slag flowing out from the blast furnace flows into the homogenizing furnace with a capacity of 11 tons through the open slag ditch previously used by the blast furnace, and at the same time, adds measured auxiliary materials into the slag ditch , to ensure that the melt reaches the acidity coefficient of 1.1-1.8 required for mineral wool fiber formation, and the auxiliary materials flow together with the slag to the designated blanking position in the homogenization furnace. Due to the addition of auxiliary materials...

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Abstract

The one-step method for producing mineral wool by using industrial furnace molten slag sensible heat includes the following steps: according to the requirement for chemical composition of mineral wool adding proper auxiliary raw material, at the same time, in homogenizing furnace making concurrent heating and regulating its chemical composition temp. and viscosity to make them reach to the requirements of mineral wool molten body, making molten body acidity coefficient be up to 1.1-1.8 (acidity coefficient=SiO2+Al2O3/CaO+MgO), and the molten body temp. is 1300-1340 deg.C, homogenizing its chemical components, feeding the thermally-refined molten body into high-speed centrifuge and feeding it into fibre-forming procedure of mineral wool so as to obtain the invented product.

Description

[0001] One. Technical field: the present invention relates to the field of mineral wool production. 2. Background technology [0002] Mineral wool is a high-efficiency energy-saving insulation material. It is widely used in industrial heat pipe network, thermal equipment, transportation vehicles, building enclosure structures, etc. It can also be used as the base material of agricultural soilless cultivation, and the filler of paper industry, etc. At present, the production capacity of mineral wool in China is about 450,000 tons. According to the prediction of relevant domestic authorities, after the full application of mineral wool products in the construction industry, the production capacity of mineral wool will rapidly expand to more than 3.5 million tons. Therefore, mineral wool products are a kind of A promising thermal insulation material. [0003] At home and abroad, the main equipment for mineral wool smelting is the mineral wool cupola. Its main raw materials are m...

Claims

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Application Information

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IPC IPC(8): C03B37/00
Inventor 杨铧
Owner 杨铧
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