Grinding media of different types of sand mills
The bead mill is used in the core stage of the production process in the coating and ink industry. Quality requirements from customers are becoming more and more demanding, and cost pressures are also increasing. The use of standard grinding methods has led to a continuous decline in profits, and the choice of cheaper raw materials will cause problems in the grinding process, such as clogging the screen, being out of range of particle size distribution, and longer grinding cycles. Saving production raw materials and pigments will lead to the opposite effect-increased costs and quality problems.
Advantages of using laboratory sand mill
• The residual amount is small, about 30ML in total.
• Easy to clean, it can be cleaned in 5min.
• High efficiency, each test is about 15min, the traditional test is about 4H; disassembly is convenient, about 5min, equipment disassembly, and zirconium bead replacement.
Selection of vertical sand mill media
But this must also consider the ink pumping speed because the ink is fed into the cylinder at a fast speed, the media will turn a little higher, so that there is more space above the media, that is, the amount of grinding media should be appropriately small a little.
Selection of media for horizontal sand mill
Sand mill is currently the most widely adaptable, most advanced, and most efficient grinding equipment. The grinding cavity is the narrowest, the gap between the levers is the smallest, and the grinding energy is the most intensive. With the high-performance cooling system and automatic control system, it can achieve continuous material Continuous processing and discharge greatly improve production efficiency.
In addition, no matter which kind of sand mill is used, the ink entering the sand mill must be well pre-dispersed so that the working efficiency of the sand mill can be brought into full play. Because the sheer force of the grinding media to break the pigment aggregates (or pigment particles) is inversely proportional to the size of the pigment aggregates between the media, that is, the smaller the pigment aggregates, the greater the shearing force between the media and the grinding And the dispersion effect is also the best.
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Source: Franli
This article address : Grinding media of different types of sand mills
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