SU1414795A1 - Direct-flow glassmaking furnace - Google Patents

Abstract

The invention relates to glass industry, in particular to glass melting furnaces, intended for cooking all types of glass, except quartz. The purpose of the invention is to increase productivity and save fuel. The continuous glass furnace includes a cooking basin 2, burners 3, which heat the furnace, a clarification zone in the form of an illuminating tray 4, a duct 5 and a production basin 6. The volume of the clarification zone refers to the volume of the duct as (7-6):: (1-1.5) and the depth of the clarification zone refers to the height of the duct as

Description

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The invention relates to industrial glassware, in particular to rotary ovens designed for cooking all types of glass, red and quartz.

 The purpose of the invention is to increase Productivity and fuel economy. ,

i FIG. .1 presents the flow

| on the glass furnace, a longitudinal vertical section; in fig. 2 - the same, in plan view.

. The straight glass furnace contains a loading pocket 1, a cooking basin 2, burners 3, with which the furnace is heated, 13 to the clarification in the form of clarifying tray 4, duct 5 and the working basin 6.

I The furnace works in the following way, j A mixture enters the glass-making furnace through the loading pocket 1, the melting of which with the subsequent dissolution of the quartz grains flows in the cooking basin 2. The welded glass melts to the clarifying: tray 4, where its homogenic flow occurs: zatsi and clarification in a thin layer. iSvarenna, homogeneous, clarified glass mass through the duct 5 enters the working pool 6.

The furnace has a vault 7. The heat mode is maintained by means of burners 3. Evacuation of the exhaust flue gases is carried out through the flue duct 8.

The volume of the clarifying tray of a glass melting furnace refers to the volume of the duct as (7-6): (1-1.5). If the ratio is greater than the specified one, the channel does not fulfill its main function (lowering the temperature of the glass mass entering the production) due to the fact that its dimensions will be underestimated. When the ratio is less than the specified, the zone of occurrence will be small for the quality provision of glass melt. The selected ratio of the volumes of the illuminating tray and the duct is closely related to the depth of the illuminating tray and the height of the duct, i.e. The depth of the clarifier tray refers to the height of the duct as, () :( 4-2). Such a double bond between these two important parameters of the furnace will make it possible to establish a more rigid connection between the dimensions of the lightening zone and the duct

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When the ratio is greater than the specified depth of the zone, the brighter zone is large, which makes it difficult for the bubbles to rise from the lower layers of the glass mass.

If the ratio limit is less than the specified one, then the channel is high in height and the required temperature uniformity of thickness of the incoming glass mass is not reached, as well as a decrease in temperature to the required limits (to the working temperature).

In the invention, the volumes of the cooking basin, the clarifying tray and the volume of the heat-treatment basin are closely related, their values are as follows (45-G35): (746) (55445).

If the ratio limit exceeds the indicated one, then the volume of the cooking basin is large, and the volume of the clarification zone and the volume of the working basin are small. Thus, the processes of clarification will not pass qualitatively due to the small size of the zone of clarification, and the production pool will be small and will not provide equipment with glass mass. If the ratio limit is below that, then the dimensions of the cooking basin are small, therefore, the dissolution of the quartz grains in its volume will not be completed. The dissolution of quartz proceeds partially in the zone of clarification, duct, which leads to numerous types of rejects (bladder, midge, gnaw, etc.).

Specific examples of experiments on the melting of a glass bath furnace are presented in the table.

Thus, in this invention, the volumetric ratios represent a close relationship between all the main elements of a glass melting furnace. This will make it possible to clearly define the optimal dimensions of each furnace element (cooking basin, clarification zone, duct, working basin).

In general, such a relationship intensifies the process of melting glass melt, allows it to be held within the shortest time possible, which results in fuel savings and an improvement in the quality of blowdown.

Claims (1)

Invention Formula A direct glass-melting furnace, including a cooking basin, a clarification zone, made in the form of a tray, a flow channel, and a working basin, which is different.   k in order to increase furnace productivity and fuel economy, the ratio of the volume of the clarification zone to the volume of the duct is (7-6) :( 1-1.5), and the depth of the clarification zone refers to Laal 6) 1,30,11: 0,1} li " tuftma Tit0,69iO, 08 "} | 2 With {mdsh «« .St1.250, «4t0.lOeZt) $ aap« A tv- lumam Stt.S0.4 "tO, t} 00, si" to the height of the duct as (1-3) :( 4-2), while the ratio of the volume of the cooking basin to the volume of the clarification zone and to the volume of the high-flow basin is (45-35) :( 7-6) :( 55-45) . 35i7: 5) 8: 1,3: 10 3 "t7: 55 8.3I: 1,, 4IS 10.6: 1.44 (3.4n t, 9tO, 32: 3,4M S, 0ei1,), 4 tt 01 Ifa | M-K11 te