In the realm of large-scale grain and oil processing, the energy-saving hydraulic system in pressing equipment plays a crucial role. This article delves into the working principle of the energy-saving hydraulic system in large-scale grain and oil pressing equipment, focusing on how hydraulic power transmission efficiency, pressure adjustment mechanisms, and energy recovery technologies contribute to energy conservation and production efficiency improvement in screw hydraulic presses.
The energy-saving hydraulic system in large-scale grain and oil pressing equipment is designed to optimize the use of energy. The hydraulic power transmission efficiency is a key factor. For example, in a well - designed system, the power transmission efficiency can reach up to 80% or even higher. This high efficiency is achieved through precise design of hydraulic pumps, valves, and pipelines. The pressure adjustment mechanism is also vital. By adjusting the pressure according to different processing requirements, the system can ensure stable operation and efficient oil extraction. For instance, when processing different types of grains, the pressure can be adjusted within a range of 10 - 30 MPa to achieve the best oil extraction effect.
Combined with screw extrusion technology, the hydraulic pressure has a significant impact on oil extraction efficiency and equipment stability. Higher hydraulic pressure can increase the oil extraction rate. In general, with the increase of hydraulic pressure from 10 MPa to 30 MPa, the oil extraction rate can increase by about 10 - 15%. At the same time, stable hydraulic pressure ensures the stable operation of the equipment. Unstable pressure may lead to equipment vibration and reduced service life. For example, if the pressure fluctuates by more than 5 MPa, it may cause abnormal wear of the equipment parts.
There are several typical energy-saving design schemes in the energy-saving hydraulic system. One is the energy recovery device. By recovering the energy generated during the operation of the hydraulic system, such as the energy released during the return stroke of the hydraulic cylinder, the energy consumption can be reduced by about 15 - 20%. Another is the intelligent control system. The intelligent control system can adjust the hydraulic parameters in real - time according to the processing conditions, ensuring the optimal operation of the system. For example, when the processing load is low, the system can automatically reduce the power output.
The industry energy - saving standards for large - scale grain and oil pressing equipment are constantly evolving. In the past decade, the ISO9001 energy - saving standard has been widely adopted. In the future, more stringent energy - saving requirements will be put forward. For example, the energy consumption per unit of oil production is expected to be reduced by another 10 - 15% in the next five years. This trend provides a scientific basis for equipment selection and upgrading. Enterprises need to choose equipment that meets the future energy - saving standards to improve their competitiveness.
In conclusion, understanding the working principle and energy - saving optimization methods of the energy - saving hydraulic system in large - scale grain and oil pressing equipment is of great significance for grain and oil processing enterprises. If you want to learn more about the energy - saving technology of grain and oil pressing equipment, click here to download relevant materials and get professional technical consultation.
