| 摘要 |
<p>PURPOSE:To prevent the clogging of piping by powder medicines by performing the supplying of the powder medicines by the circulating flow of dry gas and the gas flow to the inside of an exhaust gas duct and releasing the excess pressure generating in the medicine storage tank to the outside. CONSTITUTION:Supplying of powder medicines from a medicine storage tank 1 into a service tank 2 and supplying of powder medicines from the service tank 2 into an exhaust gas duct 3 are accomplished by the flow of the dry gas circulating between the medicine storage tank 1 and the service tank 2 and the gas flow reaching the inside of the exhaust gas duct 3 by passing the medicine outlet of the service tank 2. At the same time, the excess pressure over the gas flow up to the inside of the exhaust gas duct 3 generated in the medicine storage tank 1 is released to the outside. For example, a pressurizing device 6 is provided in the upper part of the medicine storage tank 1 and when the inside pressure of the storage tank 1 exceeds a set pressure, the excess air is released to the outside through an opening 6A. A bag filter 7 is provided to the portion connecting the pressurizing device 6 and the storage tank 1.</p> |
