In the design of the crushed stone production line, many things should be paid attention to, so that the connection between the crushing equipment and the screening equipment can be done well. In the overall design, attention should be paid to many aspects, such as process flow design, plane layout design and equipment selection design. Gravel production line is also called sand and stone production line and stone production line. It is widely used in the main production line equipment of sand and stone materials for construction, highway, railway, mining and other industries. Sand and stone production line is defined according to the discharge type. The finished products produced include stone and artificial sand, also known as sand and stone production line, which is equivalent to the combination of stone production line and sand production line.
In the process flow design, attention should be paid to the distance between the mine and the feed inlet of the production line, the feed inlet site and the drop height, the equipment layout site, the stockyard and the material output mode. A more appropriate height should be adopted in the drop height, which can not only ensure the continuous production, but also reduce the generation of a large amount of dust. The production process of the stone production line is roughly as follows: (silo) -> vibrating feeder -> jaw crusher -> impact crusher -> vibrating screen -> (finished stone). The equipment is connected by chute or belt conveyor.
Under the condition of smooth material flow, in the design of belt conveyor belt, the belt conveyor belt should be used as little as possible, and each belt conveyor belt should be marked with a label. Each kind of stone with different particle size is transported from different belt conveyor belts, which can also facilitate the management of the conveyor belt.
In large-scale gravel production line, will be set in the middle of bunker, the middle bin can store a significant amount of material, make the whole system is divided into two periods before and after, and the current stage crushing problems arise, the intermediate storage of material also can continue production, usually in crushing system need time is short, only need roughly broken can meet the needs of the subsequent production.
In the screening and crushing process, inserting a pre-screening machine into the front and rear crushing process has two functions. One is to reduce the processing capacity of the subsequent crushing process. The pre screening machine separates the materials whose discharge capacity after the previous crushing is less than that of the subsequent crushing discharge particles, so that they do not participate in the subsequent crushing. At this time, the proportion of fine particles in the subsequent crushing discharge will also be reduced, the other is to obtain some large-size product materials through screening.
