Raw material supply unit, single-crystal silicon ingot growing apparatus comprising same and raw material supply method

A raw material supply unit comprising:

• a body having a space configured to be filled with a raw material;
• a partition configured to divide the body into at least two regions in a longitudinal direction;
• at least two valves provided in the regions of the body divided by the partition, the at least two valves being configured to open and close a lower part of the body;
• and
• a driving unit configured to independently move the at least two valves in an upward-downward direction,
• wherein the driving unit comprises rods connected to the respective valves and rotary drums provided above the rods,
• wherein each of the valves forms a part of a conical shape, and each of the rods is connected to an upper part of a corresponding one of the valves, and
• wherein each valve is separately provided at the lower part of a corresponding one of the different at least two regions.