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Device and method for preparing mineral wool fibers

A mineral wool fiber and mineral wool technology, applied in the field of mineral wool fiber preparation, can solve problems such as affecting the quality of the fiber, burns by operators, and difficulty in flowing, and achieve the effects of ensuring fiber quality, ensuring safety, and good quality.

Pending Publication Date: 2021-01-26
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a prominent problem in the above equipment. The exposure of high-temperature molten raw materials to the air can easily cause burns to the operator, and the viscosity of the high-temperature melt increases after rapid cooling, making it difficult to flow, which seriously affects the fiber quality.

Method used

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  • Device and method for preparing mineral wool fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of mineral wool raw materials: using analytical reagents to prepare basic mineral wool raw materials, in which the content of CaO in the basic mineral wool raw materials is 35.47%, SiO 2 The content is 44.62%, Al 2 o 3 The content is 12.03%, the MgO content is 7.88%, and the acidity coefficient is 1.31;

[0033] Blowing to form fibers: Control the computer to control the lifting device to descend, so that the stopper rod and the bottom outlet of the crucible are tightly closed; the prepared mineral wool raw materials are put into the crucible, and the high-temperature resistance furnace operates at a temperature of 15°C / min. Turn on the air compressor immediately after the heating rate reaches 1500°C. When the outlet pressure of the high-pressure nozzle reaches 0.35Mpa and the temperature in the high-temperature resistance furnace is kept at 1500°C for 20 minutes, the lifting device is controlled to rise, and the stopper rod and the material crucible are di...

Embodiment 2

[0036] Preparation of mineral wool raw materials: use analytical reagents to prepare basic mineral wool raw materials, in which the content of CaO in the basic mineral wool raw materials is 30.50%, SiO 2 The content is 49.51%, Al 2 o 3 The content is 12.03%, the MgO content is 7.96%, and the acidity coefficient is 1.60;

[0037] Blowing to form fibers: Use the control computer to control the lifting device to descend, so that the stopper rod and the bottom outlet of the crucible are tightly closed; the prepared mineral wool raw materials are put into the crucible, and the high temperature resistance furnace is heated at 15°C / min. Turn on the air compressor immediately after the heating rate reaches 1500°C. When the outlet pressure of the high-pressure nozzle reaches 0.4Mpa and the temperature in the high-temperature resistance furnace is kept at 1500°C for 30 minutes, control the lifting device to rise, and the stopper rod and the crucible of the material are released. The m...

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Abstract

The invention discloses a device and method for preparing mineral wool fibers. According to the invention, a material containing crucible is arranged in a hearth of a heating furnace; a discharging pipeline is connected to the lower portion of the material containing crucible; the lower end of the discharging pipeline penetrates out of the bottom of the heating furnace; a molten raw material outlet communicating with the discharging pipeline is formed in the bottom of the material containing crucible; a stopper rod is arranged in the hearth of the heating furnace; the lower end of the stopperrod is located over the molten raw material outlet and can block the molten raw material outlet; a lifting device is arranged on the upper portion of the heating furnace; the upper end of the stopperrod is connected with the lifting device; a pressure sensor is arranged at the connecting portion of the upper end of the stopper rod and the lifting device; and a fiber forming device and a mineral wool fiber collecting device are arranged below the discharging pipeline. According to the invention, high-temperature molten raw materials can be prevented from being exposed in the air, so the fluidity and fiber quality of high-temperature melt can be ensured.

Description

technical field [0001] The invention belongs to the technical field of preparation of mineral wool fibers, and in particular relates to a device and method for preparing mineral wool fibers. Background technique [0002] Slag wool is a cotton-like man-made inorganic fiber made from industrial waste slag, fly ash and other molten materials. It has light weight, low thermal conductivity, strong heat resistance, fire prevention and non-combustibility, sound absorption and sound insulation and other excellent properties. By mixing special binders into slag wool, various flexible or semi-rigid products can be made, such as slag wool pipe shell, slag wool board, slag wool felt, etc. These products are widely used in construction, petroleum, chemical industry, electric power , metallurgy, transportation and agriculture industries. In recent years, scholars and enterprises at home and abroad have begun to study the new technology of blast furnace slag direct fiberization production...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/07C03B37/083C03B37/00
CPCC03B37/07C03B37/083C03B37/00
Inventor 邢相栋庞焯刚张馨艺郑建潞杜月利吕明王岐宋佳乐沈正华
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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