APPARATUS FOR GLASSTEMPERING USING THEREOF

PURPOSE: A glass tempering apparatus is provided to save the energy required for potassium nitrate dissolution, preheating, and annealing by using the same energy for them. CONSTITUTION: A glass tempering apparatus comprises a potassium nitrate tub, preheat-annealing furnace, glass panel accommodating frame, driving unit, recovering room, washing tub, and drying room. The potassium nitrate tub includes a heat-insulating material(2) coated on the external surface of a main wall(1), and an electric heater(3) and stainless bath(4) arranged therein. The preheat-annealing furnace generates the heat of 100~500°C using the electric heater(7) and includes a hole(8) in the ceiling thereon. The accommodating frame includes supporting protrusions(11,11a) positioned inward, supporter(12), pulling rod(13) vertically installed in the center, and hook(13a) located in the upper part. The driving unit mounted in a supporting frame(14) has a stainless chain(16) coated on the external surface thereof. The inner part(16a) of the chain is fixed to a chain pulley(14a). The recovering room is installed on the external of the preheat-annealing furnace and connected by a guide rail. The washing tub is continued to the recovering room and guide rail.