From grinding to pulverising: The production of lactose and dairy products brings with it a number of challenges. Hygienic design, very good cleanability and a low risk of contamination are just some of them. In addition, there is a high explosion risk, so that the machines and systems need to be laid out as defined in international directives and standards to be explosion-protected. Hosokawa Alpine knows these challenges and has developed the appropriate solutions for the production of lactose and dairy products.
As one of its main applications in the manufacture of infant formula powder, lactose must fulfil the highest purity criteria. Systems with no dead zones which are easy to clean permit a production process that is free from reservations.
At the same time, the particle size distribution must be set as a function of the comminution so that properties such as ease of use and solubility are guaranteed.
Alpine Fine Impact- and Classifier Mills
Tailored to suit the requirements of the dairy industry together with our customers.
- Deglomeration and pulverisation
- Precise top size
- Standard fineness values from 100 to 200 mesh and finer
- Special design for wet cleaning with no dead zones
- Combination of highly precise classifier technology and fine impact mills
The main constituent of milk minerals is calcium phosphate. It can be precipitated from the whey by adjusting the ph value and separated by means of a centrifuge. The resultant powder after drying has a high calcium content that originates from a biological souce,, namely milk.
Whey is a by-product from the manufacture of cheese, curd chesse or casein. The milk minerals are offered under different trade names by several of the larger producers in the milk processing industry.
Because the demanded fineness values range between < 7 µm and < 15 µm, it is only jet mills that can be used for grinding. Hosokawa Alpine has had great success with its fluidised bed opposed jet mill AFG for the grinding step.
Although fineness values < 15 µm can be achieved with the spiral jet mills, higher fineness values with correspondingly steeper particle size distributions are accomplished with the AFG mills.