降低片烟加料机出口含水率批次间差异的方法及实现

摘要

In order to reduce the difference of moisture content in output strips from the strip casing machine between batches, the casing machine was improved. To reduce the temperature fluctuation of and the casing droplets in circulated hot air, the inserted exhaust screen was replaced by a screen belt supported by side chains, a self-cleaning device for the screen belt was installed, and a set of casing droplets collecting and cleaning device was added. The results showed that the difference between moisture contents in cased strips of different batches, the extreme difference between batches decreased from 1.47 to 0.46 and was mostly controlled within ± 0.5; the extreme difference of input cut tobacco to thin plate dryer between batches reduced from 1.98 to 0.58 and was mostly controlled within ± 0.6. The intrinsic quality of cigarette was promoted.%为解决片烟加料机出口含水率批次间差异大，造成薄板烘丝机入口含水率不稳定等问题，对片烟加料机进行了改进。为降低循环热风温度波动，减少循环热风中的雾化料液，将固定的抽拉式排潮网改造为由旁链固定的排潮网带，增加了排潮网自清洁装置，并设计了一套雾化料液收集和清洗系统。结果表明，改进后片烟加料机有效降低了加料出口含水率的批次间差异，出口物料含水率稳定，批次间极差由1.47降低到0.46，稳定在±0.5以内；薄板烘丝机入口含水率的批次间极差由1.98降低到0.58，稳定在±0.6以内。改进后有效控制了片烟加料出口含水率，保障了薄板烘丝工序来料烟丝含水率的稳定，提升了卷烟内在品质。