Miller Magazine Issue: 113 May 2019

47 COVER STORY MAY 2019 the bran and germ are effectively separated. The grinding systems of flour mills have a continuous process, meaning that material moves from one machine to another just like in other food processing. But, this is a far more complex system. Because the material coming out of the grinding machine is divided into 4-5 materials in the next sieve and each is sent to a separate grinding machine. For this reason, the characteristics or working settings of a machine change the properties of the products. In ad- dition, an instant stoppage in a device causes significant disorder in the entire system. For this reason, it is required to form an appropriate flow diagram compatible with the mill design and to choose an active machine. A high-qua- lity flour from well-planned mills with high-tech machines can be obtained on the condition that these machines are configured in a good way. Whether called the mill flow diagram or flow chart, this document, is the first stage in the mill’s design sta- ges and is a valuable tool to manage mill successfully. The flow chart is a two-dimensional road map of the grinding process and draws the direction for any ma- terial coming from a machine to go in what direction and to which direction the material came from. In the mill flow chart, the following information should exist at least: a. The current diagram shows the locations of the mac- hines to be used. b. Flow direction, distribution, and quantities of material are shown. c. Technical information is given about grinding machi- nes, semolina purifier, sieves, and other used equipment. DIAGRAM PLANNING The mill design and milling are like art based on expe- rience rather than science. In contrast to sectors in which various factors determining the dynamics of the process are well known and formula and equilibriums allowing effecti- ve sizing and management of equipment define processes, in the milling, generally speaking, there are many factors affecting the grinding quality and the amount of the fi- nal product. For example, the results obtained from the mill (for example: flour yield and quality) vary according to the climate and humidity conditions, and the diagram varies according to the capacity of the mill. When planning