SU1366484A1 - Straight-line glass-making furnace - Google Patents

Abstract

The invention relates to the glass industry, namely, furnaces designed for cooking all types of glass, except quartz. The purpose of the invention is to reduce capital costs, improve the quality of glass melt, reduce production costs. The cooking basin of the furnace has a melting and a clarifying zone. The ratio of the lengths and depths of the smelting and clarifying zones is respectively (8-5) :( 1-2) and (9-8) :( 1-4). The depth of the lightening zone refers to its width --- and the width of the duct as (1-3) :( 42-60): (2-3) -. A rational ratio of sizes contributes to high-quality clarification of glass. 2 Il. 1 tab. i SL

Description

with a:

05

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four

The invention relates to glass industry, namely to furnaces intended for cooking all types of glass, except quartz.

The purpose of the invention is to reduce capital costs, improve the quality of glass melt, reduce production costs.

FIG. 1 shows a furnace, a longitudinal section; in fig. 2 - the same plan.

The cooking basin of the stove 1 has a smelting 2 and a lightening 3 zone.

The charge is loaded into the furnace through the loading pocket 4. Its cooking takes place in the smelting zone 2. The welded but not clarified glass mass enters the clarification zone 3, where its high-quality clarification takes place. Better progress of this process contributes to the rational choice of the size of the zone of clarification with respect to the depth and length of the cooking basin

The welded and clarified glass mass through duct 5, the dimensions of which are determined by the ratio of the dimensions of the cooking basin and the clarification zone and selected for this furnace design, is supplied to the output into the production basin 6. Burning fuel is carried out using burners 7, evacuating flue gases through the smoke outlet 8.

Examples of performance of the experienced melt melts are tabulated.

From the data in the table it can be seen that the improvement of quality, reduction of capital expenditures for construction and reduction of production costs is achieved by using the whole set of essential features of the invention (see examples 1, 2, 3). Failure to perform at least one of the signs leads to a decrease in the effect (see examples 4 and 5).

The length of the cooking basin refers to the length of the clarification zone as (8-5): (1-2). If the ratio of the length of the smelting zone to the length of the lightening zone is less than (8-5) :( 1-2), the quartz grains will not have time to dissolve in the cooking pool and thus there are various inclusions in the finished glass mass (charge stone, etc. d.)

If the ratio of the length of the melting zone to the length of the clarification zone is greater

than (8-5) :( 1-2), the quality of the welded glass mass that does not contain undissolved quartz grains, does not diminish and contains insignificant or undissolved gas inclusions.

The depth of the smelting zone refers to the depth of the clarification zone as

0 (9-8): (1-4). If we take the ratio of the depth of the smelting zone to the depth of the lightening zone greater than (9-8): (), then in the smelting zone, in view of increasing its depth,

F convective flows, as a result, the duration of the boiling of the charge increases, and the productivity of the furnace and, accordingly, the specific removal of glass melt decreases.

0 If the ratio of the depth of the smelting zone to the depth of the lightening zone is less than (9-8) t (1-4), then the depth of the lightening zone increases dramatically with respect to the depth of the smelting zone, which negatively affects the rate of degassing of gas inclusions from the bottom layers of clarifying tray. This fact can lead to poor clarification.

0 The depth of the clarification zone refers to

to its width and the width of the duct as

(1-3) :( 42-60) :( 2-3). If accept

clarification depth ratio

to its width and width of the duct less

g than (1-3) :( 42-60) :( 2-3), then the process of degassing gas inclusions passes; with some relief, due to the decrease in depth in the thin layer zone, but as a result of

0 width, the zone of clarification with a given channel and a small depth in the zone of clarification occurs large

The temperature scatter in the thin surface layer, which leads to temperature nonuniformity of the surface layer and, accordingly, to marriage. The width of the duct in this case is large and the volume of glass melt flowing through it is too large and it is not

0 performs one of its main functions (glass melt), i.e. glass melt at accepted ratios and design is fed to the top of the machine too hot.

g If the ratio of the depth of the clarification zone and its width and width of the duct is greater than (1-3) :( 42-60) :( 2-3), then the depth of the clarification zone is large, which makes the process difficult

clarification, although the width of the clarification zone and the width of the duct are quite acceptable for obtaining high-quality glass melt.

Claims (1)

Formula invented A glass melting furnace, including an oven connected to the cooking and working pools, and the cooking basin has a melting and clarification zones, about t-l and - with the fact that, in order to reduce capital costs, improve the quality of glass mass, reduce production costs, the ratio of the lengths and depths of the melting and lightening zones is respectively (8-5): (1-2) and (9-8) :( 1-4), and the depth of the lightening zone refers to its width and width of the duct as (1-3):: (42-60) :( 2-3). 9.0: 2.3 15., 6 9., 5 0,, And 4.0: 65: 4.0 0.6: 5.1: 0.95 SneeeiSakkvets qualities up-son stekhlomas -stehlo assi. Sy notices the investigator The eaol of the body enlarges the lightness of the “body itself