Apparatus for eliminating heterogeneous glass and glass manufacturing apparatus comprising the same

An apparatus for eliminating a heterogeneous glass, comprising:

• a storage bath having an inlet to receive a molten glass fed into the inlet and an outlet to discharge the received molten glass through the outlet, and an evacuating opening formed on a top of the storage bath, the evacuating opening located in a section between a first gate and a second gate, the evacuating opening positioned below the top surface of the molten glass maintained between the first gate and the second gate and configured to allow the received molten glass to overflow and eliminate heterogeneous glass on the top surface thereof;
• the first gate being mounted on an outlet side of the section and configured to move up and down so that the gate can open and close so that a distance between a lower end of the first gate and a bottom of the storage bath can be adjusted to thereby control the flow rate of the molten glass to be discharged through the outlet;
• the second gate being mounted on an inlet side of the section, the second gate having a bottom that can be inserted in the molten glass, and the second gate having rounded bottom corners, the second gate being configured to move up and down so that the gate can open and close so that the height of the molten glass received in the storage bath can be controlled in the section where the evacuating opening is located, the second gate configured to maintain the height of the molten glass received in the storage bath in the section where the evacuating opening is located between the first gate and second gate at a constant value or within a constant range whereby an overflow rate through the evacuating opening can be constantly maintained thereby eliminating the heterogenous glass even if operation conditions of a melting furnace producing the molten glass or properties of the molten glass are changed;
• and
• a height-measuring unit for measuring the height of the molten glass received in the storage bath at the section in which the evacuating opening is formed, the height-measuring unit transferring an information of the height measurement to the second gate,
• wherein the second gate is controlled to operate using the information transferred by the height-measuring unit and configured to move upwardly or downwardly such that the double length of the depth of the second gate inserted in the molten glass at the side in which the evacuating opening is positioned is less than a horizontal distance between the second gate and the evacuating opening.