SU816969A1 - Method of glass smelting in bath glass-smelting furnace - Google Patents

Description

;; - .; 1 The invention relates to the building materials industry, in particular to the technology of glass melting in a glass furnace furnace. The method of glass melting is known; a glass furnace with a supply and combustion of gas in several temperature zones and with the creation of maximum temperatures in the cooking basin, in the zone of a clean mirror. The company’s renewal of the furnace is provided by using water coolers that are installed close to the stove-resistant walls of the furnace. The closest to the proposed technical essence and the achieved result is the method of cooking glass in a bathroom with a technological furnace with separate cooking and working pools, including the supply and combustion of gas in several temperature zones of the cooking basin with the creation of a maximum temperature in the area of a clean mirror 2. The disadvantages of this method of glass melting include the reduced service life of the furnace. Co5 due to the fact that the greatest corrosion in the cooking basin takes place at the level of the glass melt mirror, the remaining It remains unchanged for the entire company of furnace 1, and increased energy consumption due to the need to intensify air cooling while reducing the thickness of the furnace walls. The purpose of the invention is to extend the turnaround time of the furnace. The goal is achieved by the fact that in the method of glass melting in a glass furnace furnace with separate cooking and working pools, the charge supply is switched on, the gas is burned in the cooking pool zones, creating a maximum temperature in the clean glass grain mirror area and measuring its level while decreasing 1.5-4 times the thickness of the side walls of the cooking basin of the furnace in the zone of maximum temperatures at the level of the glass mass mirror lower the glass mass level in the cooking basin by 7-20% of its maximum value and simultaneously lower under the working basin by the same amount

The position of the glass mass level in the cooking pool of the glass melting furnace makes it possible to shift the zone located at the level of the glass mass mirror and expose it to large amounts of corrosion to a new position corresponding to almost the original wall thickness and extend the turnaround time of the furnace not less than 2 times.

At the same time, energy consumption is reduced due to the lack of need for intensification. Cooling of the walls of the glass melting bath, i,

Example. On a bath of a glass melting furnace of direct heating, heated by nine pairs of hcherelok at 1500ISSO C, 70% of the charge and 30% of the glass are boiled of glass of the following composition, wt.%:

$ 10-2 73.0

N 3, 16.0 Cao 5.5

MD0 3,5

 2.0

Before making the glass is cooled in the feeder before, and then the glass blocks are formed.

The furnace is divided by a duct into the cooking and production pools. The length of the cooking basin is 11.2 m, and the length of the cooking basin is 3.44 m. The walls of the cooking basin are laid with refractory 300 mm thick. The initial maximum glass mass depth in the cooking basin is 1.15 m. In the work basin, the glass mass depth varies from 0.25 to 0.127 m.

After 12 mbs. Oven operation The wall thickness in the cooking pool in the zone of maximum temperatures at the level of the glass melt glass decreased by 120 mm. After this, the level of the glass mass mirror is lowered by 130 mm and simultaneously lowered under the working pool by the same amount. However, the level of glass melt in the working pool remains the same. After an additional 12 ces. the furnace continues to operate normally.

Tests show that with a decrease in the thickness of the side walls of the cooking basin of the ff-zone, the maximum temperature at the glass level of the glass mass decreases by 1.5–4 times the glass mass level in the cooking pool by 7–20% while maintaining the original glass mass level in the production pool leads to the sale of the overhaul life of the furnace more than Bi 2: times.

The expected annual economic effect in the implementation of the proposed method is only on one bath of a glass melting furnace (without taking into account the reduction in power consumption) is 47.6 thousand rubles.

Claims (2)

1. Patent GjlA I 3045994, cl. 263-46 ,, 19-62. 2. USSR Author's Certificate for Application No. 2687835/33, cl. C 03 C 5/04, 11/22/78.