张超锋 马涛 冯涛

【摘 要】为降低薄板烘丝机干头叶丝进入储丝柜后产生的造碎，通过模拟干头叶丝在柜底部受压后的整丝率下降试验，结果证明干头叶丝进入储丝柜底部后，每多储存1小时，干头叶丝整丝率下降约1.175%，存放8小时后，干头叶丝整丝率开始趋于平稳。对此，通过改进干头叶丝进柜储存流程，实现将干头叶丝在储丝柜底层铺料转变为顶层铺料，有效降低了干头叶丝的造碎量。

【Abstract】 In order to reduce the crumbled part of foremost dry cut tobacco after entering the tobacco cabinet of the sheet dryer， through the simulation experiment of the educe the crashing of the dry head blade after entering the storage cabinet， the whole silk rate of the dry head blade was simulated after compression at the bottom of the cabinet. The results showed that the dry head leaf silk entered the bottom of the storage tank and stored for 1 hour more. The filamentous rate of dry head leaf decreased about 1.175%. After 8 hours of storage， the whole silk rate of dry head leaf began to stabilize. In view of this， by improving the storage flow of dry head leaf silk into cabinet， the dry head leaf silk can be changed into top layer material in the bottom layer of storage cabinet，  which effectively reduces the amount of shredding of dry head leaf silk.

【關键词】薄板烘丝机;烟丝缓存柜;干头叶丝;进料流程;回归分析;整丝率

【Keywords】sheet type cut-tobacco drier;cut tobacco cache cabinet;foremost dry cut tobacco; process of imported materials; regression analysis;the whole cut rate of tobacco

【中图分类号】S572                                     【文献标志码】A                                     【文章编号】1673-1069（2018）10-0137-02

1 引言

由于叶丝在薄板烘丝机干燥过程中，料头叶丝进入滚筒后开始螺旋前进，料头叶丝层逐渐变薄，在与薄板充分接触并吸收热量后，迅速脱水而形成干头。干头叶丝抗加工能力弱已是行业内的共识，而这部分叶丝又最先平铺到储丝柜底部，受上层烟丝的压力，容易造成叶丝结构的破坏，现今卷烟厂在控制干头叶丝量上大多是采用优化薄板烘丝设备及工艺参数的方法进行控制，主要有4种方法：一是增加料头叶丝工艺流量来稀释薄板温度;二是增加料头叶丝水分，降低相对脱水量;三是适当延长预热阶段筒温转化为生产阶段筒温的时间，降低料头叶丝相对脱水量;四是优化料头加工时的滚筒转速、风速和排潮开度等参数来降低干头叶丝量。该方法主要将干头叶丝进柜储存的顺序进行了流程改进，实现干头叶丝进入储柜后的底层铺料转变为上层铺料，以降低干头叶丝整丝率结构下降值[2]。……