| 摘要 |
PURPOSE:To enable the use of a heat insulating material such as rock wool also for spraying, by providing a small chamber on a rotary arm at the bottom of a container for the material and providing a conveyed quantity regulator and an air supply regulator which are connected to the small chamber. CONSTITUTION:A material 7 is displaced to a small chamber 5 by a rotary arm 2 and disentangled by a stirrer 7 and sucked in by a fan 8. The cross-sectional area of the opening of a supply passage 10 between a supply port 6 and the inlet port 81 of the fan 8 is increased or decreased by a conveyed quantity control means 9 to regulate the conveyed quantity of the material 7. The cross-sectional area of the opening of an air supply hole 101 is increased or decreased by an air supply control means 102 to introduce a quantity of external air which corresponds to the conveyed quantity of the material 7. Since the conveyed quantity control means 9 and the air supply control means 102 are combined with each other, the material 7 can be not only sent out but also supplied to be sprayed as a refractory material. |
