| 摘要 |
<p>PURPOSE:To prevent the sticking of scale owing to the dead space on the inside surface in the lower part of a gas blow pipe, by providing a mechanism for forming circulative convection of the liquid in a gas-liquid blow pipe in the gas blow pipe. CONSTITUTION:An opening part 6 at the bottom end, opening parts 7 on the side surface and a circulation hole 8 for gas are provided to a gas blow pipe 4. The parts 7 are located in the position where the bottom ends thereof are apart upward from the liquid level L in the pipe 4. The hole 8 is located between the level L and the part 6. The hole 8 is one of mechanisms for forming the circulative convection of the liquid l in the pipe 4, and provides the effect of stirring and mixing the liquid to said liquid, thereby eliminating the trouble such as the formation of a dead space in the liquid l and the consequent sticking of gypsum scale, etc.</p> |
