A helical conveyor in a wheat flour mill is a type of screw conveyor designed with a helical screw blade that rotates within a tube or trough. This configuration allows for the efficient movement of wheat or flour horizontally or at an incline. The helical design of the screw enables controlled transportation of materials, contributing to the seamless flow of grains within the milling process. Helical conveyors play a crucial role in automating material handling, optimizing space, and facilitating the smooth transfer of wheat or flour between different stages of the milling operation.