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首页> 外文期刊>Agricultural mechanization in Asia, Africa and Latin America >Design, Development and Evaluation of Small Scale Maize Kernel Degermer
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Design, Development and Evaluation of Small Scale Maize Kernel Degermer

机译：小型玉米去核剂的设计，开发与评价

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Maize is considered a promising option for diversifying agriculture in upland areas of India. The laboratory size maize degermer was designed, developed and fabricated in the engineering workshop for separation of germ without crushing it. An AUTOCAD was used for the design of maize kernel degermer in 3D-model, based on the design considerations like durability, strength, corrosiveness and machinability at low cost to ease the construction work and maintenance. The machine component comprised of horizontal rotating shaft having wooden pieces fixed at regular intervals providing desired shearing and rubbing action for the separation of germ due to density difference. A one hp, 3-phase electric motor was used to rotate the shaft at an output speed of 7, 14 and 21 rpm. The maize kernels were pretreated (steeping at 50 ±2℃ for 72 hrs.) to a specific gravity of 7.5-9° Baume prior to feeding into the machine. The machine was evaluated at 7, 14 and 21 rpm for various responses i.e. efficiency, recovery, power consumption, uniformity index, fineness modulus and average particle size of separated germ. The machine optimum capacity was found to be 20 kg/h with an invest- ment of Rs 35,000 (= $520.00 US) on its fabrication. Results showed that the machine works efficiently at 7 rpm with germ separation efficiency of 71.6%, germ recovery of 7.16% and power consumption of 0.545 kW. The maximum germ retained (82.29%) was on sieve size of 1.4 mm witnessing average particle size of 1.85 ±0.01 mm with uniformity index of 1.465:8.514:0.017.
机译：玉米被认为是印度高地地区农业多样化的有前途的选择。实验室大小的玉米脱粒机是在工程车间设计，开发和制造的，用于分离胚芽而不破碎。基于耐用性，强度，腐蚀性和可加工性等设计考虑因素，以低成本考虑了AUTOCAD用于3D模型中玉米玉米脱粒机的设计，以简化施工工作和维护。该机器部件包括水平旋转轴，水平旋转轴具有以固定间隔固定的木片，可提供所需的剪切和摩擦作用，以分离由于密度差异引起的细菌。一马力的三相电动机用于以7、14和21 rpm的输出速度旋转轴。将玉米籽粒进行预处理（在50±2℃下吸干72小时），使其比重为7.5-9°波美。以7、14和21 rpm的转速对机器进行评估，以评估各种响应，即效率，回收率，功耗，均匀度指数，细度模量和分离出的细菌的平均粒径。发现该机器的最佳产能为20 kg / h，其制造投资为35,000卢比（合520.00美元）。结果表明，该机器以7 rpm的速度高效运行，细菌分离效率为71.6％，细菌回收率为7.16％，功耗为0.545 kW。保留的最大细菌（82.29％）在筛网尺寸为1.4 mm时，其平均粒径为1.85±0.01 mm，均匀度指数为1.465：8.514：0.017。

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