基于EDEM的平养育雏喂料装置设计与试验  

Design and experiment of a feeding device for flat rearing chicks based on EDEM

作　　者：杜华兴 李久熙[1] 李丽华[1] Du Huaxing;Li Jiuxi;Li Lihua(College of Mechanical and Electrical Engineering,Hebei Agricultural University,Key Laboratory ofBroiler and Laying Breeding Facilities,Ministry of Agriculture and Rural Affairs,Baoding,071001,China)

机构地区：[1]河北农业大学机电工程学院,农业农村部肉蛋鸡养殖设施工程重点实验室,河北保定071001

出　　处：《中国农机化学报》2022年第2期60-66,共7页Journal of Chinese Agricultural Mechanization

基　　金：河北省重点研发计划项目(22326630D);河北省引进留学人员资助项目(C20190340);国家蛋鸡产业技术体系(CARS—41—K18);河北省二期现代农业产业技术体系创新团队建设项目(HBCT2018150208)。

摘　　要：育雏饲养将直接影响着雏禽的生长发育、成活率、成年禽的生产性能等,因此这一阶段的饲养管理是养好家禽的关键。针对平养环境下育雏饲料的自动喂料装置进行研究,采用离散元仿真和台架试验相结合的方法,以平均喂料量和在地面上的落料状态为评价指标,在行进速度为0.25 m/s下,研究槽轮转速和出料口角度对喂料均匀性和育雏料在地面上的落料状态的影响。通过台架试验验证仿真结果的准确性。试验结果表明:槽轮转速对平均喂料量的影响较大,当转速低于8 r/min时,育雏料呈线性撒落,连续性较差。转速高于10 r/min时,育雏料呈松散状态,连续性较好。出料口角度对平均喂料量的影响不显著,且不同出料口角度下的落料状态基本相同。仿真试验与台架试验吻合度较好。该研究为槽轮自动喂料装置的设计与优化提供参考和理论依据,为解决养殖场不同状态的喂料需求提供方法。Raising chicks will directly affect the growth and development of chicks, survival rate, adult poultry production performance. Therefore, feeding and management at this stage is the key to keeping poultry well. This paper focuses on the research on the automatic feeding device of brooding feed in the flat rearing environment. The study adopts the combination of discrete element simulation and bench test method, at an average feed rate and on the ground state of blanking as evaluation index, under the speed of 0.25 m/s, research the Angle of the wheel speed and discharging mouth feeding uniformity and brood on the ground state of blanking. The accuracy of simulation results was verified by bench test. The results show that the average feeding rate is affected greatly by the rotational speed of the grooving wheel. When the rotational speed is lower than 8 r/min, the feeding material is linear and the continuity is poor. When the rotation speed is higher than 10 r/min, the brood is in loose state and has good continuity. The effect of the outlet Angle on the average feeding amount is not significant, and the blanking state is basically the same under different outlet angles. The simulation experiment is in good agreement with bench experiment. This study provides a reference and theoretical basis for the design and optimization of trough-wheel automatic feeding device, and provides a method to solve the feeding demand in different states of the farm.

关 键 词：平养育雏 喂料装置 槽轮 均匀性 落料状态 

分 类 号：S817.3[农业科学—畜牧学]