纤维素硝酸酯真空热脱水工艺设备的优化设计

Optimal Design for Apparatus of Vacuum Thermally Dehydrating Nitrocellulose

针对原纤维素硝酸酯真空热脱水设备在生产过程中,干物料产能受原料透水性能和环境温度的影响较大问题,分析问题产生的原因和影响因素的作用机理,提出提高滤水段滤水比重、保持棉饼温度的设备改进方法。介绍了优化的布料系统、真空-压榨滤水机构和滤水段棉饼保温机构的设计及工作原理。结果表明:该方法显著提高设备滤水能力,降低能源消耗,并减少硝化棉的分解量,使生产过程安全性更高。

In the production process of nitrocellulose＇s vacuum thermally dehydrating, water permeability of materials and environmental temperature affect lot on material productivities. This paper analyzes reasons and functional factors in the operation process, introduces an optimal design consideration of advancing draining properties of the draining parts and maintaining material temperatures. It also presents design and working principles of the optimal material system, the vacuum-pressing draining machine, and the material solution evidently improve the draining properties, decomposition, it affords a safer dehydrating process. heat holding system at the draining parts. Result shows that this decreases the energy consumption, and reduces nitroeellulose＇s