Single Cylinder Hydraulic Cone Crusher: How Electronic Control and Transmission Optimization Achieve Energy Saving in Primary and Secondary Crushing

In the mining crushing process, primary and secondary crushing stages bear the main crushing work from raw ore to qualified particle size. The energy consumption of this stage accounts for a high proportion of the total power consumption of the entire production line, and equipment selection and operation strategy directly determine the cost per ton. Shenyang Mining Heavy Equipment Co., Ltd. has made the coordinated optimization of electronic control system and transmission structure the core path of energy saving and consumption reduction in the development of YGP/YCH single cylinder hydraulic cone crusher.

Energy Consumption Bottleneck in Primary and Secondary Crushing

Traditional cone crushers face a common contradiction in primary and secondary crushing conditions: the particle size and hardness of materials in the crushing cavity fluctuate frequently, while the discharge opening adjustment and spindle speed of the equipment often rely on manual experience, making it difficult to change with the working conditions in real time. As a result, the equipment is overloaded in some periods and fails to make full use of effective power in other periods, and the overall energy efficiency deviates from the design conditions.

This kind of operation status of 'big horse pulling small cart' or 'intermittent overload' makes the power consumption per ton of ore higher than the theoretical value for a long time. The solution is not simply to increase the motor power, but to let the equipment run at the optimal power point of the current working condition at every moment.

Optimization Logic of Electronic Control System

YGP/YCH single cylinder hydraulic cone crusher adopts a closed-loop control scheme combining programmable logic controller and hydraulic sensing system. The pressure signal in the crushing cavity is collected in real time through sensors, and the control system automatically adjusts the size of the discharge opening and the spindle speed according to this, so that the crushing force is always maintained within the set range.

When the material hardness is high or the feeding volume suddenly increases, the system automatically increases the discharge opening and reduces the spindle speed to avoid overload shutdown; when the material particle size is uniform and the hardness is moderate, the system reduces the discharge opening and increases the speed to improve the crushing ratio and throughput. This dynamic adjustment enables the equipment to continuously run in a reasonable power range under fluctuating working conditions, reducing energy waste in both no-load loss and overload loss directions.

Efficiency Improvement of Transmission Design

The mechanical efficiency of the transmission link determines how much of the motor output power is truly converted into crushing work. YGP/YCH single cylinder hydraulic cone crusher adopts optimized gear pair design and low friction bearing configuration in the transmission structure, reducing the power transmission loss from the motor to the eccentric sleeve.

The matching accuracy of the eccentric sleeve and the main shaft directly affects the stability of the gyratory motion of the crushing cone. After the processing accuracy is improved, the radial runout of the eccentric sleeve during operation is reduced, and the heat generation of the friction pair is reduced. The power saved in this part can be directly used for crushing materials. At the same time, the matching of the hydraulic motor and mechanical transmission is calibrated to ensure high transmission efficiency under different speed working conditions.

Energy Saving Performance in Real Cases

In a transformation project of an iron ore concentrator in China, two traditional cone crushers undertook the secondary crushing task, with high power consumption per ton of ore and high equipment failure rate for a long time. After replacing with YGP single cylinder hydraulic cone crusher, the electronic control system automatically adjusts the operating parameters according to the change of ore hardness, and the transmission efficiency improvement reduces the motor load rate. After the superposition of the two optimizations, the power consumption per ton of ore in the secondary crushing stage shows an observable decrease.

In another limestone primary crushing scenario, the feeding particle size fluctuates over a wide range. The automatic discharge opening adjustment function of the equipment keeps the crushing cavity with a reasonable material layer thickness, avoiding frequent manual intervention and overload tripping, improving production continuity and increasing the effective crushing volume per unit time.

Conclusion

The energy saving space in primary and secondary crushing does not lie in replacing motors with higher power, but in making the existing power accurately match the crushing demand at every moment. YGP/YCH single cylinder hydraulic cone crusher transforms energy saving from design parameters to operating results that can be verified at the production site through closed-loop adjustment of the electronic control system and efficiency optimization of the transmission link. Shenyang Mining Heavy Equipment Co., Ltd. will continue to focus on the core links of the crushing process and provide practical energy saving solutions.