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混悬液在配制前,往往需要将粉剂先通过100～120目筛,以求配出质量较好的制剂。但是很多粉剂,如硫酸钡、氧化锌、炉甘石等,过筛困难,给配制增添了不少麻烦。胶体磨则是配制混悬液的良好工具,它可以按照要求配出合适的粒度。下图是南京红卫机械厂生产的胶体磨(附图):使用方法:按常规将混悬液配好后,放置约一小时,使粉剂在分散煤中充分膨胀,然后将混悬液通过调节好细度的胶体磨磨细,磨出
Before the preparation of the suspension, it is often necessary to pass the powder through a sieve of 100-120 mesh in order to formulate a preparation of better quality. But a lot of powder, such as barium sulfate, zinc oxide, calamine, sieving difficulties, add a lot of trouble to the preparation. Colloidal grinding is a good tool for formulating suspensions, which can be dispensed with the right particle size as required. The following figure is a colloid mill produced by Nanjing Hongwei Machinery Factory (with photos): Usage: After the suspension is prepared according to the routine, place for about one hour to allow the powder to fully expand in the dispersed coal and then pass the suspension through Adjust the fineness of the fine grinding mill, grinding out