The structure of the conjoined Hafranka hydraulic station consists of: motor, oil pump, relief valve (pressure regulating) reversing valve, pressure gauge, oil circuit, and oil tank. When the hydraulic compressor is compressing, the hydraulic station supplies high-pressure oil, and the component cavity composed of the oil cylinder and the piston is filled with oil. When the pressure is greater than the friction resistance of the pressing plate, the pressing plate slowly presses the filter plate. When the tightening force reaches the pressure value set by the relief valve (displayed by the pressure gauge pointer), the filter plate, filter frame (plate and frame type) or filter plate (box type) are compressed, and the relief valve begins to overflow. uninstall. , cut off the motor power, the pressing action is completed, when retracting, the reversing valve reverses the direction, and the pressure oil enters the rod cavity of the oil cylinder. When the oil pressure can overcome the frictional resistance of the pressure plate, the pressure plate begins to retreat. When the hydraulic pressing is in automatic pressure-maintaining mode, the pressing force is controlled by an electric contact pressure gauge. Set the upper limit pointer and lower limit pointer of the pressure gauge to the values required by the process. When the pressing force reaches the upper limit of the pressure gauge, the power supply is cut off and the oil pump stops supplying power. Because the oil system may leak internally and externally, the pressing force will decrease. When it drops to the lower limit pointer of the pressure gauge, turn on the power and the oil pump starts supplying oil. When the pressure reaches the upper limit, cut off the power supply. The oil pump stops supplying oil, and the cycle continues to ensure the effect of compression force during filtering of materials.
The equipment is enlarged, and the use of large filter plates and short configurations can not only reduce the floor space, but also reduce the number of pressure differential transmissions due to the shortening of the plate components, and the pressure difference is easily blocked. While increasing the processing capacity, it can also reduce cake formation. To avoid the dangerous pressure difference caused by uneven pressure, the quick-opening flow press adds a metal drive plate in the middle of the filter plate assembly, which can block the transmission of pressure difference and extend the life of the filter plate and the entire Filter Press.
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