| 摘要 |
PURPOSE:To remove non-deposited pulverized glass particles in waste gas stably for a long period of time and to improve the production efficiency of a glass base material by heating the waste gas produced after reaction of a glass raw material under heating, and removing said particles at a prescribed temp. CONSTITUTION:Pulverized glass particles are formed by the combustion of the gaseous raw material ejected from a burner 2 in a protective vessel 1, and are built up on a support rod 4. The hydrogen chloride and excess steam generated in the reaction for forming the pulverized glass particles and further the non- deposited pulverized glass particles are conducted through a ventilation pipe 7 to a removing device 14. The waste gas in the device 14 collides against a baffle plate 15, and the non-deposited pulverized glass particles stick to the plate 15 and are thus removed. Since the waste gas is held at the dew point temp. of the steam and hydrogen chloride or above by a heater wire 17, no condensation arises. Therefore, the deposition of the sludge, etc. in the device 14 are surely prevented and the waste gas is discharged stably for a long period of time. The waste gas conducted to a scrubbing column 9 through the pipe 8 is neutralized and is then discharged to the outside. |
