Discussion on diaphragm electrolysis membrane drawing technology
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This post was last edited by sunjl1981 on 2013-1-6 at 23:53. Those who are interested are welcome to discuss membrane electrolysis film-extraction technology, focusing mainly on the following aspects: 1. Selection, combination, grade of asbestos fluff, and causticization time； 2. Salt and alkali ratio of the electrolyte ； 3. Wet pumping and dry pumping times of the membrane, as well as the vacuum level ； The above is limited to a current range of 45~55 kA. Everyone is encouraged to participate actively. # ， ， &
1. Based on current usage patterns, Weimian exhibits better corrosion resistance than Jiamian; it is best to use asbestos fluff for diaphragms, and Weimian should be used exclusively in such applications. The ratio of the two different lengths should be determined based on the operating current； 2. The salt-alkali ratio of the electrolyte is determined through testing (the amount of acid and alkali loss is measured for each batch of asbestos upon its arrival at the plant) ； 3. The wet pumping time for the membrane should be determined based on the viscosity of the slurry in the adsorption tank; the pulp feed rate is a key factor here. However, it is crucial to control the opening speed of the vacuum valve according to the rate at which the vacuum level increases. The dry pumping time must be at least 4 hours.