Patent ID: 11872515
Assignee: MILAEBO CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 1:
2. The apparatus of claim 1, wherein the upper end trapping unit (31) guides the gas, which is distributed in a direction from the heater toward an outer periphery in the housing and flows downward, to the intermediate trapping unit (32) through the main gas hole (311) and the small auxiliary gas holes (312) circularly arranged around the main gas hole (311), the intermediate trapping unit (32) being disposed below the upper end trapping unit (31) and spaced apart from the upper end trapping unit (31) at a predetermined interval, and
wherein the upper end trapping unit (31) traps the reaction by-product contained in the gas on an upper surface installed with the triangular plates (313) and the cross-shaped plates (314) and a lower surface installed with quadrangular plates (315).