Laboratory sand mill is a kind of grinding and dispersing equipment. According to the continuous processing and continuous discharge of materials, the fineness and other characteristics of the rotor are determined by the configuration of the rotor structure, which improves the production efficiency. It can be divided into many different types according to different structures. The styles and uses will also be different, and the adaptability of materials is wide.
The temperature of the grinding slurry in the pre-dispersion stage should be well controlled. If the temperature of the slurry is too high due to the pre-dispersion time process, the slurry should be cooled down and then passed through the sand mill. Sometimes the temperature is too high, it may also be due to too much grinding media loaded, and the loading amount of grinding media can be appropriately reduced. When the temperature is too high, the chiller can also provide cooling water circulation water below 10 degrees Celsius to cool down.
The temperature of the slurry in the pre-dispersion stage is not very high, but once it passes through the sand mill, the temperature of the slurry in the grinding chamber quickly exceeds the protection temperature, causing the laboratory sand mill to stop for protection. In other cases, according to the knowledge of chemical principles, we can know that under the conditions of slurry viscosity, initial temperature and grinding medium filling amount and motor speed, the temperature rise of the grinding slurry is proportional to the time that the slurry stays in the grinding chamber. , so when this situation is encountered, we can appropriately increase the speed of the feed pump, shorten the residence time of the slurry in the grinding chamber, reduce the heat generated per unit time, and thus reduce the temperature of the sanding slurry.
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