A kind of drawing device and drawing method of ultrafine centrifugal glass wool with low knocking degree

A technology of centrifugal glass wool and percussion degree, used in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of high percussion degree, low percussion degree, insufficient flexibility, etc., achieve excellent sound absorption and heat insulation performance, small diameter, and improve product quality. Effect

Active Publication Date: 2018-01-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a low beating degree ultrafine centrifugal glass wool drawing device and drawing method, which can effectively overcome the high beating degree of ultrafine centrifugal glass wool in the prior art. , high rigidity, insufficient flexibility and other shortcomings, and can stabilize the fiber production process and improve product quality

Method used

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  • A kind of drawing device and drawing method of ultrafine centrifugal glass wool with low knocking degree

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Embodiment

[0029] Such as figure 1 Low percussion ultrafine centrifugal glass wool drawing device shown. The distance between the high temperature air stretching port and the centrifugal disc is 5mm, the gap width of the high temperature air stretching port is 8mm, and the distance between the cold air stretching port and the high temperature air stretching port is 8mm. Low percussion ultrafine centrifugal glass wool drawing method:

[0030] (1) Start the rotating spindle to make the centrifugal disc with a diameter of 250 mm, 8600 holes in the side wall, and a diameter of 0.7 mm in the side wall rotate at a high speed at a speed of 2600 rad / min;

[0031] (2) Turn on two flame heating internal combustion burners that heat the centrifugal disc at an angle of 60°, and heat the centrifugal disc to 900°C;

[0032] (3) The mixing ratio of natural gas and air into the gas inlet is 1:11

[0033] (4) Air is fed into the cold air stretching port and the air cutter, the temperature of the cold ...

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Abstract

The invention relates to a drawing device and a drawing method for ultra-fine centrifugal glass wool with low cracking degree. The device consists of a primary centrifugal system and a secondary stretching system. The primary centrifugal system includes an electric heating drain plate, a steel structure, a rotating spindle, an internal combustion engine, and a centrifugal disc from top to bottom. The secondary stretching system is located between the centrifugal discs. Above, including gas inlet, gas channel, refractory layer, high-temperature air stretching port, cold air stretching port, and air flow cutter. The synergistic effect of the primary centrifugal system and the secondary stretching system makes the ultra-fine glass wool fiber fine in diameter, low in beating, high in flexibility, and excellent in sound absorption and heat insulation.

Description

technical field [0001] The invention relates to a glass wool drawing device and a drawing method, in particular to a low-knocking ultrafine centrifugal glass wool drawing device and a drawing method. Background technique [0002] Ultrafine centrifugal glass fiber refers to the glass fiber that is drawn and formed by the centrifugal blowing process after the chemical raw materials mixed according to a certain ratio are melted and drained through the bushing plate. After the high-temperature liquid is drawn into fibers by the centrifugal injection process, the fiber diameter is ultra-fine (2-4 μm), the internal fibers are fluffy and interlaced, and there are a large number of tiny pores. It has the characteristics of low thermal conductivity, good sound absorption performance, and high elastic coefficient. Widely used in electromechanical, metallurgy, petroleum, chemical industry, construction and aerospace fields. [0003] The beating degree, that is, the degree of beating (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/04
Inventor 陈照峰李斌斌陈舟章骏王邈周良道薛瑞丽
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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