农机化研究2017，Vol.39Issue(6)：162-169,8.
番茄种子包衣丸粒化装置的设计与试验
Design and Experiment on Coating Granulation Equipment for Tomato Seeds
摘要
Abstract
Coating granulation plays an important role in the process of seeds treatment , coating seeds can reduce the la-bor intensity , improve the production efficiency and ensure the germination rate .Tomato planting area is very large in China , and is one of three major planting area over the world .In 2014 , the planting area was one million square hectare in China .However , at present , there is no proven technology available in tomato seeds coating , which brought about huge waste of seeds and caused a lot of economic losses .Therefore , it is very important and urgent to study the coating granulation technology for the tomato seeds .Based on the situation above , and in order to realize the mechanical sowing of the tomato seeds, the coating equipment was designed, suited for tomato seeds.The mechanism consisted of the feeder, roller, liquid supply device , a control box and support devices .The feeder transported regularly the tomato seeds and the coating agents into the roller , at the same time , the spray pump sprayed the liquid into the roller , and then the machine started coating granulation .Compared with the existing coating machine for tomato seeds , the mechanism pro-posed in this paper was simplified and its stability was improved .The whole structure was more compact and the roller speed was easier to control .Based on the analysis of structure features and working condition , its experiment model was established , and the compressive , containing seed rate and germination rate was analyzed .In order to obtain the best test parameters , quantitative coating experiment of tomato seeds was carried out .In the case of 5 g tomato seeds and 400 r/min spray pump speed , the roller speed , coating time , coating agent weight and liquid suspension volume , which were supposed to be the main influence experiment factors , were researched in the orthogonal mesh size experiment .The or-thogonal experiment provided the better combination of the four experiment factors .After the orthogonal mesh size experi-ment, the roller speed, coating time, coating agent weight and liquid suspension volume were researched in the regres-sion testing .Then by using the DPS and other software , the statistical analysis of the experiment data was got .The influ-ence of the roller speed , coating time , coating agent quality and liquid suspension volume on the compressive strength , the containing seed rate and the germination percentage was obtained .The optimal parameter combination is the roller speed of 500 r/min, the coating time of 300 s, the coating weight 55g, and the liquid suspension volume of 40mL.Ac-cordingly, the compressive strength is 316.8g, the containing seed rate was 87%, and the germination percentage was 93%, which indicated that coating mechanism met the requirement of actual testing .The coating granulation experiment further proved that the mechanism could not only satisfy the demands of tomato seeds coating granulation , but also apply to other vegetable seeds , such chili seeds .The research method was also proved to be accurate .The study for the tomato seeds coating granulation provides very important theoretical basis and reference for the design , analysis and further study on other micro seeds .关键词
番茄种子/包衣/丸粒化Key words
tomato seeds/coating/coating granulation分类
农业科技引用本文复制引用
孙正,李树君,苑严伟,张俊宁,董鑫..番茄种子包衣丸粒化装置的设计与试验[J].农机化研究,2017,39(6):162-169,8.基金项目
“十二五”国家科技支撑计划项目 （）
