The Preparation and Performance Test of a New Coal Dust Depressor
Abstract：A formula of a new type of coal dust depressor is studied by making with Polyvinyl alcohol （PVA） ,fatty alcohol polyoxyethylene ether（JFC） and a small amount of film additives as raw materials. We apply the single factor test and the orthogonal test to stud- ying the formula, and at the same time, its performance is tested. It turns out that this coal dust depressor viscosity is 19.10 mPa . s, surface tension is 37.6raN/m, and it can form a layer of flexibility, compact and continuous polymer membrane by spraying it on coal surface in shorter time. 50 days later, dust suppression rate still can achieve 95.3%. Compared with sprinkling water, this coal dust depressor has longterm efficiency. It also has good performance to resist wind and rain; especially it is suitable for using in coal transportation processes.
Keywords：coal dust depressorpreparationperformance
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)