Manufacturer of aluminum hydroxide for filtering methods - to improve and practice Appropriate chemical industry
aluminum hydroxide is an important aluminum materials, aluminum can be used to produce all kinds of inorganic salt and aluminum products. Aluminum hydroxide factory introduction of foreign advanced solid-liquid separation device, has simple structure, covers an area of small, good washing effect, and low moisture, has been widely used.
aluminum hydroxide flat filtration technology that is used by the manufacturer is to decompose the qualified aluminum hydroxide slurry, in the process of flat filter rotation week, complete filtering, washing, drying, unloading and reverse blowing process. Remove disk aluminum hydroxide to gas suspension calciner calcined alumina. Stay in the area of aluminum hydroxide to reverse washing twice, in order to reduce to alkali.
this flat filter process there are a lot of problems, vacuum filter of high and low capacity, mainly depends on the filter area and filter filtration velocity, the lower the solid content of slurry, produce the greater amount of filtrate, filter capacity is lower. If strong filtrate volume, high alkalinity, then the balance is very difficult, because the flat channeling through filter cake washing water requirement, in order to keep the washing effect, low solid content, washing water is difficult to control, relatively large amount of wash water, is also up to one of the reasons for the large amount of strong filtrate circulation.
aluminum hydroxide factory to analyze this problem, improve the filtering methods, using a drum filter slurry filtration, flat as long as the two washing, decomposition of slurry by slurry separation drum machine. So that we can achieve the purpose of control of solid content, colleagues also to avoid the strong filtering the mother liquid to filtrate the channeling, reduce its basicity. At the same time, the dynamic and static of aluminum hydroxide manufacturer of flat plate adjustment, many times is good for the distribution of the lye and stability.