Patent ID: 8801339

Claim:
A conveyor device ( 1 ) for pneumatically conveying bulk material, comprising: a main conveyor pipe ( 3 ), a plurality of bypass conveyor pipe sections ( 5 ; 28 ; 30 ; 36 ; 39 to 41 ; 44 to 46 ), which are separate from one another, arranged one behind the other within the main conveyor pipe ( 3 ) and the main extent direction of which runs along the main conveyor pipe ( 3 ), each of said plurality of bypass conveyor pipe sections comprising: an inlet opening ( 6 ) for conveyor gas to enter the bypass conveyor pipe section ( 5 ; 28 ; 30 ; 36 ; 39 to 41 ; 44 to 46 ), and a stadium-shaped outlet opening ( 7 ) for the conveyor gas to leave the bypass conveyor pipe section ( 5 ; 28 ; 30 ; 36 ; 39 to 41 ; 44 to 46 ), wherein when the main conveyor pipe ( 3 ) is installed, in main conveyor pipe segments with a horizontal course component of the main conveyor pipe ( 3 ), the inlet opening ( 6 ), is arranged in a cross sectional portion of the main conveyor pipe ( 3 ), which is located above a cross sectional portion of the main conveyor pipe ( 3 ), in which the outlet opening ( 7 ) is arranged.