VALVE FOR POWDER 申请(专利号： EP20090842237 专利号：EP2412653A1 主分类号： B65G65/48 申请权利人： MITSUI ENGINEERING & SHIPBUILDING CO., LTD. 公开国代码：EP 优先权国家： JP 摘要： A powder valve is propose which is simple in structure and small in size, which can prevent powder from getting stuck in the valve, and can withstand high feed pressure. The valve includes a valve casing 21, a valve shaft 25, and a valve body 22 mounted in the valve casing 21 and supported by the valve shaft 25.The valve body 22 has a spherical outer surface 27 configured to be brought into contact with a valve seat 23 of the valve casing 21 to close the valve. The valve body 22 is formed with a communication hole 26 extending in a direction perpendicular to the valve shaft 25 so that when the valve body 22 is rotated about the valve shaft 25 in either of two opposite directions from the closed position, the valve is configured to open 申请日：2009-03-26 公开公告日： 2012-02-01 分类号： B65G65/48; F16K3/22; F16K5/06 发明设计人： MIYAZAKI, TAKAYUKI; ARAI, TAKASHI; FUKUI, SHIGEO; TAKAHASHI, SHINJI; TAKEDA, YASUHIDE 申请国代码： EP 优先权： 20090326 JP 2009056105 摘要附图：
through the communication hole 26. The communication hole 26 is open on the back side of the valve body 22 over the entire length thereof. With this arrangement, it is possible to ensure the advantages of a ball valve, i.e. full-bore properties and high rigidity. Since the pressure of powder flowing through the communication hole 26 acts on the inner periphery of the valve casing 21, the flow of powder blows off and removes any powder which could otherwise get stuck on the inner periphery of the valve casing 21. By rotating the valve body 22 in both directions, powder can be removed on both sides of the valve shaft 25. 主权项： A valve for powder comprising a valve casing 21, a valve shaft 25, a valve body 22 mounted in the va
