基于 CFD-DEM 耦合的养殖工船 自动投饲机的研制与实验.

In order to solve the traditional feeding equipment can not meet the requirements of the operation of the breeding vessels, designed to meet the long-distance transportation of the farm workers, large feeding volume of the work requirements of the pneumatic conveying automatic feeding machine, to solve the feed particles clogging, crushing rate is high, the system has high energy consumption, can not be controlled by the speed and other issues, through the CFD-DEM method of analysis of the feed from the mouth to the mouth of the movement of the feed outlet process, the simulation results show that the simulation results show that in the initial stage of the feed movement, the pressure loss is large, after entering the bend, the feed basically becomes suspended, and there is no feed blockage in the whole process, and in the outlet, the feed is uniformly distributed. In the whole process, the feed and air velocity pressure are after the elbow to reach a stable state. Manufacturing prototype for test verification, in the experimental process did not find the phenomenon of feed clogging, and control the frequency converter so that the motor speed of 40 r/min to meet the 1.5 t/h feeding rate, by controlling the motor speed to achieve the function of controlling the feeding speed, it meets the application scenarios of breeding vessels. [ABSTRACT FROM AUTHOR]