märkäjauhamiseen

Märkäjauhaminen, or wet grinding, is a comminution process where solid particles are ground in the presence of a liquid. This liquid, often water but can be oils or other solvents, acts as a lubricant, reducing friction and wear on the grinding media and equipment. It also helps to prevent the agglomeration of fine particles and can aid in the dispersion of the ground material, leading to a more homogeneous product.

The process is commonly used in industries where fine particle size and good dispersion are critical. This includes the production of paints, inks, ceramics, pharmaceuticals, and food products like chocolate and peanut butter. The liquid medium facilitates the transfer of energy from the grinding media to the particles, improving the efficiency of size reduction. Additionally, the liquid can help to cool the grinding zone, which is important for heat-sensitive materials.

Märkäjauhaminen can be carried out using various types of equipment, such as ball mills, sand mills, or attritors. The choice of equipment and operating parameters depends on the desired particle size, the properties of the material being ground, and the nature of the liquid medium. The presence of the liquid can also influence the surface properties of the ground particles, which can be beneficial for subsequent processing steps.