Patent ID: 7413086

Claim:
An inline sifter comprising: a gas-powder mixture receiving module provided with a supply chamber, which receives a mixture of a gas and a pneumatically transported powdery material from a gas-powder mixture inlet; a sieving module provided with a sieving chamber, which laterally communicates with said supply chamber of said gas-powder mixture receiving module; a rotating mechanism provided with a rotating shaft, which is laterally extended inside said supply chamber and said sieving chamber; a cylindrical sieve arranged such that said rotating shaft extended in said sieving chamber passes through a center thereof; a wind power amplifier located in an internal area of said sieve and having multiple blades fixed to said rotating shaft to amplify wind power and pressing said powdery material out from said internal area of said sieve toward an external area; a removal member used to remove a remaining powdery material and/or foreign substances, which has not passed through said sieve, from said internal area of said sieve; an outlet used to discharge a sieved powdery material, which has passed through said sieve from said internal area toward the external area, wherein said gas-powder mixture is supplied in a circumferential direction along a circumferential face of said supply chamber, flows around said rotating shaft, and is fed into said sieving chamber, wherein said wind power amplifier includes a support member that radially extends from said rotating shaft, wherein said support member comprises multiple protrusion plates, to which said multiple blades are fixed, that radially project from a central portion of said support member, and a through hole formed in said central portion to receive said rotating shaft passing therethrough, and wherein a principle surface of each protrusion plate extends in an orthogonal direction which is orthogonal to an axial direction of said rotating shaft such that a width of the principle surface of said protrusion plate in the orthogonal direction is larger than a width of said protrusion plate in the axial direction.