LW-450N气封密闭式卧螺离心机设计与应用研究
发布时间：2018-11-15 14:21
【摘要】：四氯化钛是生产钛材和电子封装的重要原料,采用熔盐氯化工艺,生产过程中因净化氯化炉出口的细粒粉尘,会产生含有约7%的四氯化钛悬浮液,具有很高的回收价值。由于四氯化钛悬浮液中含有高浓度的氯气,而氯气与空气中的水份结合产生盐酸烟气,对环境产生严重污染,是四氯化钛生产中存在的一个严重问题。本课题选用卧式螺旋卸料沉降型离心机来来分离四氯化钛悬浮液,采用气封式密闭型特殊的结构型式,有效解决了四氯化钛悬浮液在固液分离中四氯化钛泄漏的难题。本文以四氯化钛悬浮液为分离物料独立完成了LW-450气封密闭式卧螺离心机工艺设计,总体结构设计,计算校核相应结构附件的强度并绘制总装配图和零部件图。通过对设计试制的样机在工厂现场的应用研究表明,样机能满足四氯化钛生产工艺,设备能连续自动分离,分离后的泥饼可回到氯化炉中回收使用,分离后的清液几乎不含固相粉尘。在处理能力3立方米/时的条件下运行时,离心机的转速为1800r/min,得到的分离液的含固率在0.2%左右,已经达到了进入下一道生产工序的要求。其采用的氮气密封效果良好,没有气体外泄,有效地解决了四氯化钛泥浆悬浮液在固液分离中四氯化钛泄漏的难题,说明设计是成功的。经过一年多的稳定运行,使用厂减少了分离工段的操作人员16人,减轻了劳动强度,提高了自动化生产程度,消除了对环境的污染,具有很好的经济和社会效益。
[Abstract]:Titanium tetrachloride is an important raw material for titanium production and electronic packaging. By using molten salt chlorination process, due to the purification of fine dust from the outlet of chlorination furnace, about 7% titanium tetrachloride suspensions will be produced during the production process, which has a high recovery value. Due to the high concentration of chlorine in titanium tetrachloride suspensions and the combination of chlorine gas with water in air to produce hydrochloric acid fume, it is a serious problem in the production of titanium tetrachloride that the environment is seriously polluted. In this paper, horizontal spiral discharge centrifuge is used to separate titanium tetrachloride suspensions, and a special structure type is adopted to solve the leakage problem of titanium tetrachloride suspensions in solid-liquid separation. Using titanium tetrachloride suspension as the separation material, the process design of LW-450 gas seal closed horizontal centrifuge is carried out, the overall structure is designed, the strength of the corresponding structural accessories is calculated and the total assembly drawing and parts drawing are drawn. The application of the prototype designed and manufactured in the factory field shows that the prototype can meet the production process of titanium tetrachloride, the equipment can be separated continuously and automatically, and the separated mud cake can be recycled back to the chlorination furnace. The separated liquid almost contains no solid dust. Under the condition of processing capacity of 3 cubic meters / hour, the speed of centrifuge is 1800 r / min, and the solid content of the separation liquid is about 0.2%, which has reached the requirement of entering the next production process. Its nitrogen sealing effect is good and there is no gas leakage. It effectively solves the problem of titanium tetrachloride leakage in solid-liquid separation of titanium tetrachloride slurry suspension. It shows that the design is successful. After more than a year of steady operation, the plant has reduced the number of operators in the separation section by 16 people, reduced the labor intensity, improved the degree of automation production, eliminated the pollution to the environment, and has good economic and social benefits.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ134.11;TQ051.84
[Abstract]:Titanium tetrachloride is an important raw material for titanium production and electronic packaging. By using molten salt chlorination process, due to the purification of fine dust from the outlet of chlorination furnace, about 7% titanium tetrachloride suspensions will be produced during the production process, which has a high recovery value. Due to the high concentration of chlorine in titanium tetrachloride suspensions and the combination of chlorine gas with water in air to produce hydrochloric acid fume, it is a serious problem in the production of titanium tetrachloride that the environment is seriously polluted. In this paper, horizontal spiral discharge centrifuge is used to separate titanium tetrachloride suspensions, and a special structure type is adopted to solve the leakage problem of titanium tetrachloride suspensions in solid-liquid separation. Using titanium tetrachloride suspension as the separation material, the process design of LW-450 gas seal closed horizontal centrifuge is carried out, the overall structure is designed, the strength of the corresponding structural accessories is calculated and the total assembly drawing and parts drawing are drawn. The application of the prototype designed and manufactured in the factory field shows that the prototype can meet the production process of titanium tetrachloride, the equipment can be separated continuously and automatically, and the separated mud cake can be recycled back to the chlorination furnace. The separated liquid almost contains no solid dust. Under the condition of processing capacity of 3 cubic meters / hour, the speed of centrifuge is 1800 r / min, and the solid content of the separation liquid is about 0.2%, which has reached the requirement of entering the next production process. Its nitrogen sealing effect is good and there is no gas leakage. It effectively solves the problem of titanium tetrachloride leakage in solid-liquid separation of titanium tetrachloride slurry suspension. It shows that the design is successful. After more than a year of steady operation, the plant has reduced the number of operators in the separation section by 16 people, reduced the labor intensity, improved the degree of automation production, eliminated the pollution to the environment, and has good economic and social benefits.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ134.11;TQ051.84
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