黏性饵料输送投喂装备的开发与试验

网箱养殖、幼鱼适口性驯化等需要采用黏性饵料,该类饵料人工投喂劳动量大,亟待研发相关装备满足实际生产需求。根据黏性饵料输送距离和投喂量等指标,设计了以柴油机为动力源的总体方案,选择容积式G型单螺杆泵作为投喂系统的核心,对输送泵、动力源、传动系统、输送管等关键部件进行选型及匹配设计,并校核泵的流量、动力满足度、推力等控制性参数;基于选型情况,设计置料器、连接件等附属零件,进行整体结构成型和加工调试。该系统的现场试验结果表明,装备性能可满足黏性饵料输送,输送距离达到100 m,覆盖区域50 m×50 m,最大输送速率达到12 840 kg/h,满足实际需求。该系统装备造价0.75万元,可以根据需要进行输送管道的灵活布置,无需外部电源供应,适合网箱养殖等野外环境下的群组配置。

Development and testing of sticky feed transporting and feeding equipment

Sticky feed with high viscosity is needed in net cage culture, acclimation of juvenile fish etc.. Artificial feeding process of this kind of feed requires high labor intensity,thus suitable feeding equipment is urgently needed to meet the practical production requirement. Based on the transporting distance and feeding quantity indexes,an overall scheme using diesel as the power source has been designed.The volumetric G-type single screw pump was taken as the core of the system,key parts including pump,power source,transmission system and pipe were selected and designed for matching,and the control indexes of the pump in terms of flow rate,power and propulsion were verified.Based on the selected portion,accessory parts such as feed providing funnel and connecting part were designed,and the overall structure was manufactured and tested.The field test results show the equipment can transport the sticky feed within a distance of 100 m,covering a 50 m × 50 m area and with a maximum transporting rate of 12840 kg/h,which can meet the practical requirement.The cost of the system is 7500 RMB Yuan and it can be flexibly laid out according to the actual needs without outer electricity supply,suitable for group distribution of aquaculture practices under wild environment such as net cage culture.