| 摘要 |
PURPOSE:To permit to feed ready mixed concrete the like by pressure into a transporting tube simply and smoothly by a method wherein an eccentric rotor is rotated along the inner peripheral surface of a casing and the substance to be sent is introduced and sent by pressure by providing a biting preventing rotor at the entrance of the casing. CONSTITUTION:The eccentric rotor 7, whose eccentric part 5a is rotated under contacting with the inner peripheral surface of the casing 1 in the condition of surface contact, is provided in the casing 1. The biting preventing rotor 11, which rotates intermittently, is provided at the entrance port 2 of the casing. A semi-tubular half-rotating valve 6, provided at the intermediate part of the entrance port 2 and a delivery port 3, is controlled by an operation control means so as to swing within a given angle under contacting with the inner peripheral surface of a cover 7. A force is applied to the valve 6 into the same direction as the rotating direction of the eccentric rotor 5 by a lever, cooperating through a shaft 8, and a weight at the end of the lever. According to this method, a process, from the introduction of the substance to be fed, such as the ready mixed concrete or the like, to the sending by pressure, may be separated at the intermediate part of the entrance port 2 and the delivery port 3, therefore, the substance may be sent by pressure smoothly into circumferential one direction. |
