SU1174391A1 - Bath glassmaking furnace - Google Patents

Abstract

BATHROOF GLAZED OVEN, containing roof, hanging walls and a cooking basin with side walls, equipped with longitudinal and internal channels for coolant supply, located below the glass melt level, characterized in that, in order to prolong the service life of the glass furnace bath by reducing its speed destruction, in the side walls of the cooking basin at the level and above the level of the glass mass, additional longitudinal rows of channels are provided for supplying the refrigerant, and the distance between the axes of the channels to the horizontal ohm direction as well as to the inner surface i and the outer side walls of the melting chamber exceeds the channel diameter at 1,4SL 3.5 times, and in one vertical row, this distance is 1,4-1,7- channel diameter.

Description

41

one

with with 1. The invention relates to the industrial construction materials, in particular, equipment for the production of sheet, container, medical and other types of glass. The purpose of the invention is to extend the service life of a glass-melting-glass bath by reducing the rate of its destruction. The drawing shows a bathtub with a steam furnace, a cross-section A bath with a glass melting furnace contains a cooking basin 1 with side walls cooled from the inside 2, under the weight walls 3 and a roof 4, Upper. a series of side walls 2 of the cooking basin at 1 above and below the level of the glass melt 5 is made with longitudinal rows of the coolant supply channel 6dl. Preferably, the channels 6 are staggered. The distance cf between the axes of the rows of channels 6 in the horizontal direction, as well as to the inner and outer surfaces of the side wall 2 is 1-3.5 times the diameter d of the channels 6, and the distance h in the vertical direction between the axes of the channels is O, 7-1, 5 diameters of df channels 6; The glass furnace bath works as follows. Using mechanical loaders (not shown) in the cooking pool 1 bath glass furnace load the mixture and the battle. By burning the fuel in the fiery space of the glass-melting-glass bath limited by the hanging walls 3 and roof 4, the glass melt is melted and clarified. The cooking pool 1 is corroded, especially the upper row 91 of the side walls 2 at the level of the glass mass 5 mirror. To reduce this irritation, the internal channels 6 of the side walls 2 of the cooking basin 1 serve: coolant, for example air, using a high pressure fan. Air is moistened with water to improve heat transfer. Example. In the glass furnace bath of a 1N furnace at 1550 ° C, a glass of sodium silicate composition containing May.%: SiO is boiled. The walls of the cooking pool 300 m thick are made of refractory material bakor-33 with longitudinal round channels 30 mm in diameter. The axis of each channel is located parallel to the inner wall of the cooking basin. The nearest axis to the inner wall is 65 mm from it. The channels are forcibly cooled with air with a heat transfer coefficient of about 150 kcal / m) (hour-hail. During the month of work, the wall thickness is reduced by 5 mm. A more complete study was conducted on a laboratory furnace, where the contact temperature and the rate of corrosion of a bakor-33 refractory bar with different thickness of the intermediate wall when exposed to the same glass at the temperature of the glass, the results of the studies are shown in the table.

The distance between the axes of the channel in the horizontal direction a, mm

a / d

Wall thickness mm

105

2.1 65

Work time to complete destruction of the intermediate wall, months

The number of intermediate walls in the side wall of a 300 mm thick glass melting bath.

Total running time

side wall of bako

pa-33 thick

300 mm, months

Long table extension

12

sixteen

17

64

60

68

Claims (2)

GLASS BATHROOM FURNACE containing a vault, suspended walls and a cooking pool with side walls, equipped with longitudinal internal channels for refrigerant supply, located below the glass melt, characterized in that, in order to extend the service life of the glass melting furnace by reducing its destruction rate, additional longitudinal rows of channels for supplying refrigerant are provided in the side walls of the cooking pool at and above the level of the molten glass, the distance between the axes of the channels in horizontal pressure The pressure as well as to the inner and outer surface of the side walls of the melting chamber exceeds the channel diameter at 1,4- 3.5 times, and in one vertical row this distance is 1.4-1.7 channel diameters. SU „., 1174391>