SU91253A1 - Glass melting bath furnace with air cooling of the walls of the pool and burners - Google Patents

Description

The subject of the invention is a glass-melting bath with an air-cooled burner basin wall, the design of which provides an increase in the service life of the furnace and a reduction in its heat consumption.

The drawbacks of the existing glass-melting furnaces with water cooling or air-blowing of the outside masonry of the pool are that such forms of cooling of the rapidly degrading parts of the furnaces result in a decrease in its efficiency.

A distinctive feature of the proposed ycTpoiicTBa is that the cooling of the areas of the furnace, which are strongly subjected to wear, is carried out by air circulating inside the hollow masonry elements of these areas of the furnace. After the air cools the masonry material and sa.m is heated, it enters the kiln for burning, it is useful to use the heat of the kiln — thus increasing the efficiency. installation and lengthening its service life. In bath furnaces with such pool cooling, the fireclay bars are replaced with hollow, ribbed inside, ceramic or metal elements. The air for cool cooling is supplied by high-pressure fans at high speed. The masonry, cooled inside with blown air, from the outside has an insula- tion ensuring that the heat of the air is used for burning in the furnace and reducing heat losses. The cooled air from the furnace. The furnace’s fiery space can be laid out of two walls between which the cooling air is blown. Such a structure is safe in case of shutting down the cooling of the pl a wear of the first (inner) wall and allows for increasing the cooking temperature to lengthen the life of the furnace without repairs.

.№ 91253- 2 FIG. 1 shows a glass furnace in cross section; in fig. 2-empty element; FIG. 3-wall oven with double walls between which air is blown in plan.

The hollow elements W are laid out from the inside of the furnace in areas strongly exposed to wear from being eroded by the glass mass: or with a mixture of DUST. The core elements 1 are insulated from the outside with chamotte bars 2, which exclude the possibility of an accident during cooling off.

When using metal hollow elements with internal fins near the cooling surface of the pool, a layer of solidified glass is formed, which allows short-term switching off of the cooling wind when switching electricity or switching to a spare automatic ventilation unit without destroying the hollow metal elements. In the event of an accident, start-up can be provided to the cooling system of the running water from the reserve tank. In order to prevent corrosion, metal hollow elements are coated with silicate enamel.

In the second embodiment, the fiery furnace space can be lined from two walls, between which air is blown to cool the inner wall. Air is supplied by high-pressure fans and, after cooling the pool, a special insulated channel is supplied to the air valve of the furnace bath to be directed to the regenerators.

To increase the efficiency Bath furnaces The pool bottom can simultaneously be made of mullite or high-alumina supplies stacked on a foam chamfer bar for thermal insulation of the bottom. The use of mullite or high-alumina refractories with a specific weight exceeding the specific weight of glass for the bottom of the pool eliminates the possibility of floating bars and makes it possible to isolate the bottom.

Subject invention

Claims (3)

1. Glass bath with air-cooled pool and burner walls and an insulated bottom, characterized in that, in order to improve the quality of the glass melt, increase the service life of the furnace bath and reduce heat consumption, the masonry of the furnace is strongly exposed to wear and tear by glass or light dust, made of hollow, ribbed inside, ceramic or metal elements, through which air is blown for cooling, then supplied to the furnace for combustion. 2. The form of the furnace according to claim 1, characterized in that, in order to prevent corrosion, the metal elements are coated with silicate enamel. 3. Form of the furnace floor. 1, characterized in that, in order to reduce heat losses, the fiery space of the furnace (upper structure) is laid out from two walls with an air gap through which the cooling air used further for burning in the furnace is blown. Fig Fig 2  . ,,; P; jc 3 SCH  t.