Raw material re-feeding apparatus for manufacturing monocrystal and monocrystal manufacturing apparatus having the same

A monocrystal manufacturing apparatus comprising:

• a monocrystal furnace;
• and
• a raw material re-feeding apparatus comprising a storage disposed outside the monocrystal furnace;
• and a feeder in communication with the storage to receive raw materials conveyed by the storage, the feeder having a first discharging end, wherein the first discharging end is located inside the monocrystal furnace and the first discharging end is movable in a direction toward melt in a crucible in the monocrystal furnace;
• wherein the feeder comprises:
• a fixed material tube disposed outside the monocrystal furnace and connected to the monocrystal furnace;
• a mobile material tube disposed inside the fixed material tube, wherein the first discharging end is disposed at one end of the mobile material tube;
• and
• a moving device configured to pass through the fixed material tube and connected to another end of the mobile material tube to drive the mobile material tube to move relative to the fixed material tube;
• wherein the fixed material tube is provided with a first opening, the mobile material tube is provided with a second opening, the first opening communicates with the second opening, and the first opening communicates with the storage;
• and
• wherein a length of the second opening in a moving direction of the mobile material tube is larger than a length of the first opening in the moving direction of the mobile material tube, to enable the second opening and the first opening to remain in communication during moving of the mobile material tube.

A raw material re-feeding apparatus for manufacturing a monocrystal, comprising:

• a storage disposed outside a monocrystal furnace;
• and
• a feeder in communication with the storage to receive raw materials conveyed by the storage, the feeder having a first discharging end located inside the monocrystal furnace and movable in a direction toward a melt contained within a crucible in the monocrystal furnace;
• wherein the feeder comprises:
• a fixed material tube disposed outside the monocrystal furnace and connected to the monocrystal furnace;
• and
• a mobile material tube disposed inside the fixed material tube, wherein the first discharging end is disposed at one end of the mobile material tube;
• wherein the fixed material tube is provided with a first opening, the mobile material tube is provided with a second opening, the first opening communicates with the second opening, and the first opening communicates with the storage;
• and
• wherein a length of the second opening in a moving direction of the mobile material tube is larger than a length of the first opening in the moving direction of the mobile material tube, to enable the second opening and the first opening to remain in communication during moving of the mobile material tube.