不同工艺复合肥外包裹菌粉有效活菌数及包菌率的影响因素研究  

Influencing factors of effective viable bacterial count and encapsulation rate of compound fertilizers produced by different processes coated with bacterial powder

作　　者：王小蒙 曾锐 郭武松 叶坤国 WANG Xiaomeng;ZENG Rui;GUO Wusong;YE Kunguo(Xinyangfeng Agricultural Technology Co.,Ltd.,Jingmen 448000,China)

机构地区：[1]新洋丰农业科技股份有限公司,湖北荆门448000

出　　处：《磷肥与复肥》2024年第2期23-25,共3页Phosphate & Compound Fertilizer

摘　　要：通过小试和工业试验研究高塔、喷浆、转鼓3种工艺生产的复合肥外包裹菌粉效果,考察各因素对有效活菌数及包菌率的影响。结果表明:不同工艺生产的复合肥外包裹菌粉时的效果不同,有效活菌数和包菌率均表现为转鼓工艺>喷浆工艺>高塔工艺;但相同工艺生产的复合肥外包裹菌粉的有效活菌数和包菌率,小试和工业试验差异较大,均表现为小试大于工业试验,转鼓、喷浆、高塔工艺工业试验包菌率分别为59.0%、45.3%和36.7%。工业生产中若使含菌复合肥有效活菌数达到0.2亿/g,1000亿/g菌粉的理论添加量为0.02%,根据包菌率实际添加量需要达到转鼓工艺0.034%、喷浆工艺0.044%、高塔工艺0.055%,分别是理论添加量的1.70倍、2.20倍和2.75倍。Through small-scale and industrial trials,the effects of various factors on the effective viable bacterial count and encapsulation rate of compound fertilizer produced by three processes(high tower process,spraying process,and rotary drum process)are investigated.The results show that the effects of encapsulating bacterial powder on the outer layer of compound fertilizers produced by different processes are different,the effective viable bacteria count and the encapsulation rate are shown to be rotary drum process>spraying process>high tower process;However,there are significant differences in the effective viable bacteria count and encapsulation rate between the small-scale and industrial trials under the same process,with the small-scale trial being greater than the industrial trial.The encapsulation rates of industrial trials in the rotary drum,spraying and high tower processes are 59.0%,45.3%and 36.7%,respectively.In industrial production,if the effective viable bacterial count of bacterial containing compound fertilizer reaches 20 million/g,the theoretical addition amount of 100 billion/g bacterial powder is 0.02%.According to the encapsulation rate,the actual addition amount needs to reach 0.034%in the rotary drum process,0.044%in the spraying process,and 0.055%in the high tower process,which is 1.70 times,2.20 times,and 2.75 times of the theoretical addition amount,respectively.

关 键 词：复合肥 有效活菌数 包菌率 生产工艺 影响 

分 类 号：TQ446[化学工程—化学肥料工业]