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Russian What is a Filter Press Electromagnetic Reversing Valve?
The electromagnetic reversing valve of the filter press is a key component used to control the direction of the fluid in the hydraulic system and is usually used in the hydraulic control system of the filter press. The filter press is a device used for solid-liquid separation, and the electromagnetic reversing valve is responsible for controlling the action of the hydraulic cylinder to achieve the tightening, loosening, or movement of the filter plate.
How does an electromagnetic reversing valve work?
According to the control method, the solenoid reversing valve can be divided into a two-position three-way, two-position four-way, three-position four-way, and other types. The specific choice depends on the design and control requirements of the filter press.
The electromagnetic reversing valve changes the position of the valve core by energizing and de-energizing the electromagnet, thereby changing the flow direction of the hydraulic oil. The valve core in different positions can control the hydraulic oil to flow to different pipelines, realizing the telescopic movement of the hydraulic cylinder. If the filter plate cannot be opened after the filter press is tightened, it is possible that the electromagnetic reversing valve is broken and should be repaired in time.
The Function of the Electromagnetic Reversing Valve
Automatic compressing
When compressing starts, the hydraulic station motor and the electromagnetic reversing valve are powered on, causing the motor to drive the oil pump, which begins supplying oil to the high-pressure chamber of the oil cylinder. The oil pressure pushes the piston rod forward, moving the compressing plate to press the filter plate. Once the pressure reaches the upper limit set by the electric contact pressure gauge, the motor and electromagnetic reversing valve are de-energized, and the motor automatically shuts off, entering a pressure-holding state.
Automatic release
After filtration is completed, the pump station motor and the electromagnetic reversing valve are powered on. The motor drives the oil pump to deliver oil to the low-pressure chamber of the oil cylinder, causing the piston rod to retract the compressing plate. The pump station motor and electromagnetic reversing valve are de-energized when the compressing plate reaches the limit switch. At this point, the system pressure is regulated by the direct-acting overflow valve. Once the automatic unloading is finished, the cycle is complete.
Conclusion
In summary, the electromagnetic reversing valve is indispensable. Since the electromagnetic reversing valve directly affects the working state of the filter press, its reliability is crucial. Regular inspection and maintenance are required. Select a suitable electromagnetic reversing valve to ensure that its rated pressure, flow rate, and other parameters match the system. By understanding the role and principle of the electromagnetic reversing valve of the filter press, you can better maintain and operate the filter press equipment and ensure its efficient operation.
