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Large melting kiln suitable for borosilicate glass

A borosilicate glass and melting furnace technology, used in glass production, glass furnace equipment, glass manufacturing equipment, etc., can solve the problems of poor glass liquid uniformity, many glass product streaks, and complex current distribution.

Inactive Publication Date: 2014-12-17
CHINA TRIUMPH INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the actual production experience, due to the increase of electrodes in the all-electric melting furnace with a production capacity of more than 20t / d, the current distribution is more complicated during the melting process, the uniformity of the melted glass is poor, and there are many stripes in the glass product

Method used

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  • Large melting kiln suitable for borosilicate glass
  • Large melting kiln suitable for borosilicate glass

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Embodiment Construction

[0023] The invention will be described in more detail below with reference to the accompanying drawings of specific embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0024] now refer to figure 1 and figure 2 , detailing a large melting furnace suitable for borosilicate glass according to an embodiment of the present invention.

[0025] Such as figure 1 and 2 As shown, the melting furnace is provided with a melting zone, a strengthening zone, a rising zone, and a clarification zone. The melting zone and the strengthening zone are separated by a partition wall, and the lower end of the partition wall is deep below the liquid level of the glass, but does not touch the bottom of the mel...

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Abstract

The invention provides a large melting kiln suitable for borosilicate glass. The large melting kiln is provided with a melting area, an enhancing area, an ascending area and a clarifying area, wherein the melting area and the enhancing area are partitioned by a partitioning wall; and the lower end of the partitioning wall extends to be below the glass level, but is not in contact with the bottom of a melting kiln tank so as to guarantee that the molten glass in the melting area and the molten glass in the enhancing area are communicated. According to the large melting kiln provided by the embodiment of the invention, due to the structures of the melting area and the enhancing area, the problem of volatilization of boron of the borosilicate glass in the melting process due to flame melting also can be improved. The molten glass flows out of a flowing hole of the enhancing area and enters the clarifying area with shallower tank depth through the ascending area. By a homogenizing device arranged at the ascending area and an electric-heating and negative-pressure system arranged at the clarifying area, the molten glass is fully homogenized and clarified.

Description

technical field [0001] The invention relates to the technical field of glass melting equipment, in particular to a melting furnace suitable for borosilicate glass. The melting furnace has the characteristics of combining electric melting and flame melting and special structural design. It is a borosilicate glass melting furnace with large production capacity. Background technique [0002] Borosilicate glass has the characteristics of high viscosity, high melting temperature, easy boron volatilization and borosilicate phase separation. If a single flame melting method is used to rely on space radiation heating, not only the thermal efficiency is low, but also the melting effect is not good for melting this kind of refractory glass, and the disturbance of the flame will increase the volatilization of boron. [0003] Full electric melting technology is used in small glass melting furnaces below 15t / d. It is an economical and applicable melting process, especially suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/00
CPCC03B5/185C03B5/031C03B5/0332C03B5/20C03B5/2252C03B5/193C03B5/2353Y02P40/50C03B5/00C03B5/027
Inventor 彭寿刘清江龙跃曹艳平王晓龙
Owner CHINA TRIUMPH INT ENG
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