Mist recovery apparatus with twisted strip inserted pipes.

摘要

A mist recovery apparatus recovers the mist of water, oil and the like from the fumy or gassy exhaust produced in the rolling operation of aluminum plates. The apparatus has a shell (5) provided with a pair of upper and lower pipe plates (14) and a plurality of exhaust passing pipes (2) extending between the upper and lower pipe plates (14) and each having a twisted strip (1) therein. The shell has a upper casing (3) and a lower casing (4), which are placed above the upper plate (14) and beneath the lower plate (14). The exhaust containing mist flows through the upper casing (3), respective exhaust passing pipes (2), and the lower casing (4) sequentially. These exhaust passing pipes (2) are cooled by a coolant passing through and around the pipes, so that the mist are removed from the exhaust and recovered. The experimentally suitable ratio of the length (L) of the exhaust passing pipe and the twisting half pitch (P) of the twisting strip is 8 - 35.