The double roller press granulator has become the core equipment of the organic fertilizer production line with its advantages of low energy consumption and high granulation rate. Mastering the precautions for its use can maximize the performance of the equipment and reduce failure losses. The following points need to be focused on.
Material pretreatment is the key to granulation. Before feeding, it is necessary to ensure that the moisture content of the material is in an appropriate range. Too high moisture content can easily cause the roller surface to stick to the material and form "tumor-like" lumps; too low moisture content will cause the particles to break easily. At the same time, large hard objects should be removed by screening to avoid scratching the roller surface or causing the roller to get stuck. It is recommended to work synchronously with a vibrating screen to reduce the risk of equipment damage from the source.
Roller maintenance determines the life of the equipment. Check the roller surface wear before starting the machine every day. If there are dents or cracks, they need to be polished and repaired in time to maintain the smoothness of the roller surface. The parallelism of the rollers on both sides needs to be calibrated weekly, and the deviation should be controlled within a very small range, otherwise it will cause uneven particle thickness. When replacing a new roller, it is necessary to ensure that the error of the left and right roller diameters is within a reasonable range to ensure uniform force.
Pressure control affects the quality of particles. Adjust the pressure of the hydraulic system according to the characteristics of the material. If the pressure is too low, the particle strength is insufficient. If the pressure is too high, the roller wear will be aggravated and the motor may be overloaded. If the particles are found to be "stratified" during operation, the pressure must be reduced immediately and the uniformity of the material must be checked.
Operating specifications ensure production safety. When starting the machine, the main machine must be started first, and the feeding device can be turned on after the speed is stable; before stopping the machine, the material must be stopped first, and the main machine can be turned off after the material between the rollers is emptied. In case of sudden shutdown, the hydraulic system pressure must be manually released to prevent the rollers from being under pressure for a long time. The hydraulic oil filter element needs to be replaced regularly to prevent impurities from clogging the oil circuit.
Following these precautions can keep the double roller press granulator in the best condition at all times, making your production worry-free and efficient.
