SU44198A1 - Method and device for making glass wool or wool - Google Patents

Description

In the proposed method of shading glass wool or wool from a molten mass of glass, slag, and the like material, hot liquid glass or slag mass is passed through the most uniformly thin continuous flow through the rapidly growing body, for example, delivered horizontally, quickly rotating washer from the corresponding refractory material. At the same time, the liquid mass is sprayed onto the smallest droplets, thrown away by centrifugal force with the formation at the same time of thin delicate threads, which are lowered around the circumference of the rotating washer and can form a uniform layer.

Separate heavier parts, in the form of droplets, or thicker threads

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Because of their greater mass, they can be discarded, and therefore are easily separated from the filaments of desired thickness.

In order to facilitate the production process and to direct the fibers downward, and at the same time divert the obtained part of the fibers, in the proposed method, an air stream is used that is directed vertically to the plane of the rotating washer and presses down the deflector from the faceplate.

The schematic drawing shows a vertical section of a device for making glass wool or wool according to the inventive method.

The material smelting furnace 1 is heated, for example, by gas burners 2. The lid 3 covers the opening 3 for

filling the furnace with a new mass for the plasma. The mass output from the outlet mouthpiece 4 is adjusted by raising or lowering the plug 5. A ring 6 with a crown nozzle 19 is positioned around the opening of the mouthpiece 4. The heat is thus heated to regulate the temperature of the flowing glass or slag, for example, by gas flame . The space around mouthpiece 4 is surrounded by 1 end shielding walls 7 and 8, which reduce radiation to the outside and eliminate cooling of the outgoing mass too quickly; between the protective walls 7 and 8, a narrow horizontal slot 9 is left. The rotating casting disk 10 consists of a detached plate 11 itself, made of a refractory mass and a metal body 12 surrounding it, in order to prevent the plate from breaking at a high number of revolutions. The disk 10 is mounted on the shaft 13, receiving the required large number of revolutions using the belt pulley 14 and the belt 15 or by directly connecting to the electric motor. The upper edge of the annular protective wall 8 f is approximately at the height of the upper surface O | of the throwing disc 10, so that too heavy glass particles can accumulate over the upper edge of the slit 9, as a result of which they can separate from the benign glass filaments. Collected threads from the gap fall into the chute 16 and from here again can be fed into the furnace.

The liquid mass flowing through the mouthpiece 4 to the disk 10 is discarded under the action of a centrifugal force in the horizontal direction and gives something like a wreath of thin filaments descending between the casing 12 and the protective wall 8. This falling mass covers the already falling threads, therefore around the shaft a sheath is formed, falling onto the base 17.

By means of the scissors 18, which can operate from a mechanical drive, this sheath in the form of a fabric is cut off and falls along the inclined base 17 into the winding device. Width

The resulting tape corresponds to the circumference of the shell formed around the disk 10. Thin threads thrown from the last, due to their low weight, have a relatively low fall rate, and in view of the high temperature fibers in place, they tend to go up. This circumstance or slower lowering of the fibers makes it difficult to remove the threads, which delays the production process; and from which the quality of the product may suffer to a greater or lesser extent. To avoid this, an annular air flow is created from the top downwards, which is obtained by means of a crown-shaped nozzle 19 of the ring 6, to which compressed air is supplied via the air duct 20. The air flow exiting the nozzle 19 directs the fibers discarded by the disk 10 continuously downward, so that subsequent fibers coming from the disk can move without hindrance, which facilitates continuous removal of the finished product.

By appropriate means, the thickness of the thread can be adjusted as desired, for example, by changing the temperature or by adjusting the distance between the disk 10 and the mouthpiece 4, as well as by adjusting the amount of mass flowing out.

The subject of the patent.

Claims (4)

1. A method of making glass wool or wool from a molten mass of glass, slag or similar material, characterized in that the molten material is directed by a continuous thin stream onto a solid refractory material rotating rapidly in a horizontal plane in order to cause the molten mass to be thrown off by centrifugal force to form fine filaments from the smallest glass droplets obtained by spraying. 2. An implementation of the method according to claim 1, characterized in that an air flow is established around the rotating disk, in the direction of its axis, in order to press the flying glass fibers downwards. 3. a device for performing the method according to pi. 1 and 2, characterized by the application of an axially disposed exhaust nozzle of a rotating disk 10, surrounded by protective walls 7 and 8, forming an annular slot 9 directed downwards approximately at the height of the disk, which serves to remove larger particles of molten mass flying away without VOLO-ON. 4. In the device according to claim 3, use a crown-shaped nozzle for compressed air located above the disc in order to obtain an air flow that presses the fibers downwards.