SU812776A1 - Glass-smelting vessel - Google Patents

Description

(54) GLASS TRAYS

t

This invention relates to the building materials industry, in particular to the equipment of glass fiber factories.

A glass melting vessel is known, comprising a housing with current leads, in the lower part of which there is a die plate, and the upper portion of the housing is provided with a cover. The current leads are located on the end walls of the vessel body vertically, their surfaces are perpendicular to the surface of the draw plate 1.

Such a design does not provide a sufficiently uniform temperature along the length of the spun plate, which does not allow to obtain the same glass flow rate from each spinneret when drawing coarse filaments for the subsequent formation of a glass sheet of superthin fiber (STV) of a uniform structure in the longitudinal direction. The uneven distribution of temperature along the length of the draw plate (lower temperature at the extreme nozzles) is due to the presence of closely spaced water-cooled current-carrying clamps, which reduces the temperature of the extreme nozzles of the vessel. In such constructions

glass-melting vessels, the glass consumption of the extreme die is 0.5 times the flow rate of the spinnerets located in the middle part of the die plate.

The closest to the proposed, technical essence and the achieved result is a glass melting vessel, including a housing with current leads, in the lower part of which there is a spinneret plate, and the upper one is equipped with a lid 2.

This design makes it possible to equalize the temperature along the width of the spin floor, but it does not solve the problem of temperature equalization along its length, since even in this case the temperature decrease of the extreme dies of the vessel is not eliminated due to additional heat extraction with water-cooled clamps.

The purpose of the invention is to improve the quality of the yarns by achieving the same glass consumption from each die.

five

The goal is achieved by the fact that in a glass melting vessel, for shaping the elementary filaments and the melting of inorganic materials, mainly glass, including a housing with current leads, in the lower part

the die plate is made, and the top is equipped with a lid, the current lead is located on the side walls of the vessel body horizontally and parallel to the die plate, the ratio of the distance from the die plate to the current leads to the distance from the die plate to the cover is in the range of 0.3-0.8 and the ratio of the length of the current lead to the length of the die plate is 0.40, 7.

Figure 1 shows a diagram of a glass-melting vessel, made in axonometry; in fig. 2 - the same cross section. .

The glass melting vessel comprises a housing 1 with current leads 2 welded to the side walls of the vessel 3. A screen 4 is installed inside the housing forming a melting zone 5. A nozzle plate b with dies is located at the bottom of the vessel body, above which is a working area 7

Glass beads using a loading device (not shown) enter the melting zone 5 above screen 4, where they are melted. The molten glass mass enters the working zone 7 and coarse filaments are formed through the spinneret dies of the spinning plate b. The proposed location of the current leads provides a uniform heating of the glass in the melting zone 5 and the working area 7, and also contributes to a uniform distribution of temperature throughout. the length of the film plate.

When the ratios - and - are higher or lower than the indicated shading zones

temperature distribution in the smelting and processing zone of a glass-melting vessel.

Verification of the proposed design shows that the glass consumption of the extreme dies is 0.9 of the glass flow rate of the average dies, which allows to obtain glass paper from a PTS of a uniform structure in the longitudinal direction.

Claims (2)

1. Authors certificate of the USSR 529130, cl. From 03 to 37/02, 1976., 2. US Patent 3512948, cl. 65-11, published. 1967.