SU827425A1 - Method of smelting glass fibre and glass ball waste - Google Patents

Description

The device is a bathroom glass furnace with a melting pool / and conditioning channel 2, equipped with: individual heating devices 3 to 4, for example with acoustic nozzles. Under the conditioning channel 2 coaxially with the feeder 5, a cooled granulator torus 6 is mounted. The depth of the melting pool / I exceeds the depth of the conditioning channel 2 / J by 1.8-2.2 times. The width of the melting pool / B is greater than the width of the conditioning channel 2 b ъ 7.5-12 times.

A grab loader 7 is fixed above the furnace, the projection of which is located above the feed chute 8.

A smoke metal pipe 9 is mounted at the end of the cooking basin 1 above its arch.

The device works as follows.

Waste fiberglass and glass beads portions of 80 kg fall grab loader 7 on the loading tray 8 bath glass furnace. From the loading tray 8 through the side loading window waste

the fiberglass and stockpiles are loaded into the smelting pool / bath of a glass melting furnace. The temperature in the loading zone in the smelting pool / is 1150 ° C. In the cooking pool 1, the organic substances are burned out quickly and their combustion products are removed through the chimney 9. At the same time, the process of splitting glass fiber and glass beads begins and glass melt is formed. Glass mass 10 from cooking basin 1, where it moves at a speed of 0.6 m1 hour, enters the conditioning channel 2. Here its speed increases to 20 m1 hour, the temperature is 1380 ° C.

Through the filler 5, the glass melt 10 enters the cooled granulator 6 with the formation of erklez, which then, together with the charge, is loaded into the furnace for the fabrication of glass beads.

Under these conditions, erclosis was obtained with sizes ranging from 1 to 5 mm and a bulk weight of 850-900 kg1 m.

Comparison of chemical analysis of the original glass and obtained by the proposed method is summarized in table 1.

Table 1

The chemical composition of air glass obtained by melting glass fiber wastes is identical to the original glass used for the production of glass fiber.

Adding to the charge loaded into the furnace for making glass beads, 15-30% erklez makes it possible to reduce the charge consumption by 15-30%. Reducing the addition of erklez less than 15% is not advisable for economic reasons, with the addition of more than 30%, the technological mode of production of glass beads is deteriorating.

The expected annual economic effect from the introduction of the proposed method and device for melting fiberglass waste in only one plant will amount to 177,000 rubles.

Claims (2)

Invention Formula The method of cooking fiberglass and glass bead waste by loading melting, conditioning and thermal granulation into a glass melting furnace, characterized in that, in order to obscure the use of waste in the production of fiberglass due to the removal of organic binder combustion products and the prevention of the volatile components, the melting is performed at the speed of movement of glass mass of 0.4-0.8 m1 hour, and conditioning at 1350-1400 ° C and the speed of movement of glass mass, 12: -24 m / h. 40 Sources of information taken into account in the examination: 1. The USSR author's certificate number 414203, cl. From 03 To 5/12, 1972. 2. The patent of France No. 2199856, cl. C 03 B 5/12, 1974 (prototype). f Fig. /