Patent ID: 7055696
Filing Date: 2006-06-06
Classification: B03C,B65G

Abstract:
1. A rotary valve type magnetic foreign matter removal device comprising: a rotary valve allowing a rotor to be stored rotatably in a tubular powder granular material feeding chamber in a casing, storing and feeding powder granular material received from a powder granular material feed port to said trough of said rotor, and discharging said powder granular material from a powder granular material discharge port to the outside, and having an inspection door that opens and closes an inspection hole provided in a side surface of said casing; and a magnetic foreign matter attracting member which includes: fixable plates that are attached to both sides of said rotor, a plurality of bar magnets fixed or connected to said fixable plates with detachability and arranged in each of a plurality of troughs of said rotor to allow said arrangements to rotate integrally with said rotor, and non-magnetized or very little magnetized cylindrical covers covering said bar magnets to be put into or put out, wherein said bar magnets and said covers are connected to said fixable plates such that said powder granular material stored in said troughs surround and contact with said covers, wherein magnetic foreign matter mixed in said powder granular material are attached to said magnetic foreign matter attracting member, wherein said inspection door is opened to allow said magnetic foreign matter attached to said magnetic foreign matter attracting member to be removed, wherein said rotor, bar magnets, covers and fixable plates rotate integrally with said axis, and wherein said inspection door is opened and said rotor, bar magnets, covers and fixable plates are detached from said axis and are put out through said inspection hole.