Evolution of carbon disulfide in apparatus for the plasticized stretching of artificial fibre

Conclusions It has been found that the evolution of carbon disulfide from a yarn in a plasticized stretching trough over its length obeys the laws for turbulent exchange.A mathematical dependence of the carbon disulfide distribution over the plasticization trough length on the basic parameters of turbulent transfer has been found.Intensification of the process of stripping off carbon disulfide without increasing the volume of air pumped off from the apparatus requires increasing the velocity of the air stream which passes through the apparatus.Translated from Khimicheskie Volokna, No. 4, pp. 56–57, July–August, 1984.     

Effect of tow shrinkage in the setting zone on properties of high-modulus viscose fibre

Conclusions In the manufacture of HMV fibre, it is advisable to use a two-zone apparatus for plasticized stretch; in the first zone of this, plasticized stretch is carried out; in the second, a structure setting at an assigned shrinkage.The use of this apparatus makes it possible, at practically unchanged strength indices, to regulate the elongation of the fibre produced, and also, to a definite degree, its twist, which is important in producing fibres of various assortments. The output of the flow line is increased by 10–12%.Translated from Khimicheskie Volokna, No. 2, pp. 38–39, March–April, 1989.     

泵站并行机组优化操作

对变频调速的泵站并行机组建立了经济运行的混合整数非线性规划数学模型,并用列队竞争算法进行了求解.优化计算结果表明,泵站实施优化调度能有效节能,产生较明显的经济效益.