强化堆料径向流动好氧堆肥反应器设计及性能

发布时间：2018-03-20 12:45

  本文选题：好氧堆肥　切入点：反应器　出处：《农机化研究》2017年11期 　论文类型：期刊论文

【摘要】：堆肥过程中物料存在混合不均、曝气不充分及发酵不彻底等问题,制约了有机物料有效生物转化。为此,研制了一种新型桨式曝气搅拌堆肥反应器。装置内的上、中、下层内设6个附有桨叶的搅拌桨,每个桨叶表面安置径向拨片,可有效增加堆肥物料的径向流动,从而使物料与空气充分接触。以牛粪、秸秆、麦麸与沼液为原料进行批式好氧堆肥试验,结果表明:该堆肥反应器可有效实现搅拌、曝气通风同步进行功能;罐体内堆料各层维持50℃以上天数分别达到6.8、5.6、3.9天;各层物料种子发芽指数(GI)均值达到91.03%,可有效地实现混合物料堆肥无害化目标。
[Abstract]:In the process of composting, there are some problems such as uneven mixing of materials, inadequate aeration and incomplete fermentation, which restrict the effective bioconversion of organic materials. Therefore, a new type of paddle aerated stirred composting reactor is developed. Six impellers with blades are arranged in the lower layer, each blade surface is placed with radial pluck, which can effectively increase the radial flow of compost material, thus making the material in full contact with air. The batch aerobic composting test was carried out with wheat bran and biogas liquid as raw materials. The results showed that the composting reactor could effectively realize stirring and aeration ventilation synchronously, and the days of maintaining each layer of material in the tank over 50 鈩，

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