镁法海绵钛爬壁钛生成量的初探

A Study the Production of the Titanium on Walls Produced in the Process of Sponge Producing by Magnesium Process

在海绵钛的还原生产过程中,反应器的上部器壁会生成大量环状的爬壁钛,一炉产品爬壁钛的生成量少则500kg左右,多则达800kg^1000kg,爬壁钛不仅产品取出困难,增加操作人员劳动强度,而且其质量较差,经济损失大。本文分析了海绵钛爬壁钛的形成机理及生产过程中爬壁钛增多的原因,提出了还原中后期最大加料速度限制,以缓解反应剧烈程度和控制反应液面高度在1#范围内小幅波动,防止形成新的活性中心,是生产过程中减少爬壁钛生成量的主要途径。

A quantity of annular titanium will be produced on upper walls of reactors during the reduction and distillation.The production per batch is from 500kg to 800 or 1,000kg.It is difficult for operators to take products out,and also influences the quality.Therefore,the titanium on walls not only strengthens the labor intensity,but also causes a big loss The paper analyzes the formation mechanism of the titanium on wall and reasons why its production increases.Also,in order to ease the strong reaction,make the liquid level in reaction waves no more than 1＇＇and prevents the formation of new active centers,the paper introduces a main method to reduce the production of the titanium on walls,which is restricting the max.feed speed in mid or late period of reduction and distillation.