subject: Vertical Roller Mill Hydraulic System Of The Proper Use And Maintenance [print this page] Vertical roller mill hydraulic system of the proper use and maintenance
With China's rapid economic soaring, highway, railway and other large projects continue to be launched, the market demand for high quality cement increased, which gives the cement manufacturer has brought great business opportunities, the device is basically a full load 24 hours of continuous operation, in particular, an important part of the device, one of the Vertical roller mill, as the main driving force is provided by the hydraulic system, while the hydraulic system is relatively delicate, proper use and maintenance, is to protect the premise of their normal work.
Hydraulic system hydraulic components of the role and functions:
1. Oil meter oil: The system can accurately understand the height of liquid within the tank, easy to refuel at any time, to prevent the pump suction air. Thermometer can be approximated to know the temperature of the oil tank.
2. Oil filter: oil pump through which absorb the oil tank, oil can be filtered out the larger particles to protect pumps, and the entire hydraulic system is not contaminated.
3. Air filter: a device to the fuel tank through which fuel can be oil in the filter out larger particles, oil pollution prevention system. Tank while the system work and the atmosphere Unicom mouth.
4. Pump: the power system components, they absorb the oil, the oil discharge pressure. Converts electrical energy to hydraulic energy components. This type of system are generally high-pressure gear pump.
5. High-pressure oil filter: oil pump with high standards of cleanliness through it were the oil pump control components and systems implementation components. Ensure the cleanliness of the system to extend the system to control components and implementation of the component service life.
6. Relief valve: it controls the system's rated working pressure to ensure the safety of the system can be designed under the pressure of work.
7. Manual valve: changing the system oil flow direction, thus changing the direction of movement of the actuator.
8. Check valve: in this system play the role of locking and packing to ensure the implementation of components and the pressure accumulator continuing.
9. Safety valve: control the implementation of components and sub-circuit in the external force, the pressure does not exceed the safety value set to ensure the safe use of the hydraulic components.
10. Cut-off valve (plate): fast unloading, the system needs to perform shunt components and the pressure relieved accumulator, turn the valve can be quickly achieved.
11. Two-way Valves: Screw and balance function; can ensure the maintenance of roller cylinder in turn, may at any time when the reducer to stay in any position, but also to ensure the smooth operation of fuel tank rollover, would not result in equipment damage due to stall.
The regulation of hydraulic system
The main hydraulic system set up two relief valve oil on the road, a group called the relief valve, which determines the rated working pressure; the other as safety valves, which ensure the implementation of components and sub-circuit in the external force , the pressure does not exceed set safety value. System in the factory of the pressure relief valve has been adjusted by the relevant technical requirements set, the user used in the actual working conditions, such as no need Please do not adjust. When the hydraulic system can not meet the Vertical roller mill's output power when used under the guidance of the relevant professionals in the system configuration allows the conditions, while adjusting the two valves can improve the working pressure, increase system output power (system factory Press the standards set pressure relief valve set pressure relief valve higher than the 3-4 Mpa). Specific regulation as follows:
1. Loosen the lock nut relief valve, start the motor, pulling the lever for valve (ie valve stem in the left frame), disc drive cylinder piston rod recovery, slowly tighten the relief valve adjustment bar, observation tank recovery situation, to meet the needs of the Vertical roller mill, at which point the system pressure gauge displays the actual value of work pressure, the pressure is stable after you record the pressure.
2. Shut down all the relief valve will tighten, loosen the valve lock nut, start the motor, according to just pressure, it is set pressure safety valve (pressure than the record high 3-4Mpa). Tighten the valve nut.
3. According to records of the pressure relief valve set to re-adjust and tighten the pressure relief valve nuts.
Hydraulic equipment system in the Vertical roller mill is an important component as well as failure of one of the most vulnerable link in the system in strict accordance with the provisions of the instructions for use, proper use and maintenance of hydraulic systems is to reduce the system failure, system trouble-free use of extended time, security production, improve the effectiveness of protection.
