In sand production, roller sand making machine is one of the common equipment, but the moisture content of the material is too high will adversely affect the production. In order to reduce the moisture content of the material in the production of the roller sand making machine, the following measures can be taken:
First of all, strict control of the moisture content of the material is the key. Before the material enters the sand making machine, it should be dried or screened to reduce its moisture content. At the same time, for materials with high water content, you can consider adding an appropriate amount of desiccant or hygroscopic agent to absorb the moisture in the material.
Secondly, adjusting the operating parameters of the roller sand making machine is also the key. For different materials, it is necessary to choose the appropriate roll spacing and rolling force. Appropriately reducing the roll spacing or increasing the rolling force can help to extrude excess water from the material. In addition, controlling the humidity of the production environment is also a good way to keep the working environment dry to help prevent the material from absorbing too much moisture.
At the same time, the feeding speed and feeding amount of the roller sand making machine also need to be reasonably controlled. Too fast feeding speed and too much feeding volume will cause the sand making machine to be overloaded, which will increase the moisture content of the material. Therefore, it is necessary to reasonably adjust the feeding speed and feeding amount according to the model and specifications of the sand making machine.
In addition, for the sand and gravel that has been produced, its moisture content can be further reduced by drying, screening and mixing, etc., and its quality and value can be improved.