RU2269489C2 - Method of a charge loading into a glass-melting furnace - Google Patents

Abstract

FIELD: glass industry; methods of a charge loading in a glass-melting furnace.

SUBSTANCE: the invention is pertaining to the field of glass industry, in particular, to the method of a charge loading in a glass-melting furnace. The method provides, that the charge is first poured out of the hopper in the trays with the opening bottoms consisting of plates of a jalousie type. The trays are transferred by the dollies into the furnace and scatter the charge there in the preset modes of operation. The charge is scattered uniformly on the whole surface of the glass-melting furnace by in series opening the bottoms of the trays, which in width are equal to the width of the glass-melting furnace, and in length making 20-30 % of the length of the glass-melting furnace, so that the end of opening a tray bottom will coincide with the end of the glass-melting furnace working area. The filling of the burnouts is made by opening a bottom of a tray in the places of their formation moving a dolly back or not moving it depending on the significance of the burnouts. A pouring of the charge out from the hopper is conducted without vibrations. The dolly load-bearing structure is made in the form of a box and cooled by a continuous flow of the air or water. The technical result of the invention is an increase of the glass-melting furnace operational life.

EFFECT: the invention ensures an increase of the glass-melting furnace service life.

3 cl, 7 dwg

Description

The invention relates to the production of materials related to the process of melting the charge, in particular for use in electric glass furnaces.

Known methods described in the book "Electrothermal units for glass melting" Lapteva VI, Sibiryakova VA, "Light industry and consumer services", 1985, p. 91, in which the charge is loaded moving into the furnace through guide trolley, this part of which is equipped with rotary plates such as blinds. Its main disadvantage is that the charge is filled up simultaneously by the entire length of the furnace by turning all the plates such as blinds. There is no possibility of backfill burnout. Another disadvantage is that the installation of rails on the furnace can lead to its rapid failure.

On pages 89-90 of the same book, a method of filling the charge with a conveyor belt loader ZShL-3, which allows you to fill the burnouts. The main disadvantage of this method is that it leads to a quick failure of the loader due to the presence in the furnace of a significant part of the mechanisms exposed to high temperatures. The closest analogue to the present invention is a method of loading a mixture with a loader, described in the invention 850616 from 10.22.79, C 03 D 3/00. Its main disadvantage is that the rotation of the louvre type plates is carried out at the same time, because of which there is no possibility of backfilling of the burnouts formed during the glass melting process on the surface of the bathtub, which significantly affects the life of the furnace without major repairs.

The purpose of the invention is to increase the resource of the furnace.

This goal is achieved by the fact that the charge is first poured from the hopper into containers made in the form of trays 2 (Fig. 7) with an opening bottom consisting of plates of the type of blinds 3 (Fig. 7), they are transported by carts to the furnace and the mixture is scattered in it in the set operating modes. The mixture is scattered evenly over the entire surface of the furnace during the reverse course of the cart by successively opening the bottom of the tray with a width equal to the width of the furnace and 20-30% of the length of the furnace along the length so that the end of opening of the bottom coincides with the end of the working zone of the furnace. The tray, made in the form of a flat trough, equal in width to the size of the furnace, is placed in front of the trolley 1 (Fig. 7) and the bottom is opened during its reverse stroke in series, while scattering the charge evenly over its entire surface. Fillings are filled by opening the bottom of the tray in the places of their formation, moving or not moving the trolley back, depending on the significance of the burnouts. The mixture is charged from the hopper, excluding the vibration process, for example, by an impeller with an adjustable rotation speed, and the supporting structure of the trolley is box-shaped and cooled by a continuous flow of, for example, air or water. Figure 1-6 shows the process of filling the charge of the proposed method.

Figure 1 - loading the tray charge at the beginning of the cycle.

Figure 2 - the position of the mechanisms at the beginning of the cycle.

Figure 3 and figure 4 is an intermediate position of the executive bodies.

Figure 5 - the end of the working cycle.

Figure 6 - initial position before loading the tray charge.

Figure 3 and 4 - intermediate positions of the executive bodies when filling the entire surface of the furnace loader coincide with their positions when filling burnouts.

Figure 7 shows the process of opening the bottom of the tray at the intermediate moment of spreading the charge of the entire working surface of the furnace or at the time of filling the burnouts.

Using the proposed method allows both to provide visibility of the process of filling the charge, and to increase the service life of the furnace without major repairs.

Claims (3)

1. The method of loading the mixture into a glass melting furnace, which consists in first pouring the mixture from the hopper into containers made in the form of trays with an opening bottom, consisting of louvre-type plates, moving them with carts to the furnace and pouring the mixture into it in predetermined operating modes , characterized in that the mixture is spread evenly over the entire surface of the furnace during the reverse trolley by successively opening the bottom of the tray, the width equal to the width of the furnace, and 20-30% in length along the length of the furnace, so that the end of the opening of the bottom coincides with the windows aniem working zone of the furnace. 2. The method of loading the charge into a glass melting furnace according to claim 1, characterized in that they additionally fill the burns, opening the bottom of the tray in the places of their formation, moving or not moving the trolley back, depending on the significance of the burns. 3. The method of loading the mixture into a glass melting furnace according to any one of claims 1 and 2, characterized in that the mixture is poured out of the hopper without vibration, for example, by an impeller with an adjustable rotation speed, and the box-shaped supporting structure of the cart is cooled by a continuous stream of, for example, air or water.

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