Polyester Mesh wholesaler shares with you.
When the hydraulic pressure of the filter press is mechanically compressed, high-pressure oil is supplied by the hydraulic station, and the component cavity composed of the oil cylinder and the piston is filled with oil. When the pressure is greater than the frictional resistance of the pressure plate, the pressure plate slowly presses the filter. Plate, when the pressing force reaches the pressure value set by the relief valve (displayed by the pointer of the pressure gauge), the filter plate, the filter frame (plate frame type) or the filter plate (vane type) is compressed, and the relief valve begins to unload At this time, the power of the motor is cut off, and the pressing action is completed. When returning, the reversing valve is reversed, and the pressure oil enters the rod cavity of the oil cylinder. When the oil pressure can overcome the friction resistance of the pressing plate, the pressing plate starts to return.
When the hydraulic pressure of the filter press is automatic pressure holding, the pressing force is controlled by the electric contact pressure gauge. The upper and lower pointers of the pressure gauge are set to the value required by the process. When the pressing force reaches the pressure of the pressure gauge, When the upper limit is reached, the power supply is cut off and the oil pump stops supplying power. Due to the internal and external leaks that may occur in the oil circuit system, the pressing force decreases. When it reaches the lower limit pointer of the pressure gauge, the power is turned on and the oil pump starts to supply oil. The power supply is cut off and the oil pump stops supplying oil. This cycle is used to achieve the effect of ensuring the compaction force in the process of filtering the material.
The effect of temperature on the working condition of the filter press is the temperature of the filtered liquid. The temperature of the filtered liquid directly affects the filtration efficiency of the filter press and whether the filtration can operate normally. When the temperature of the filtered liquid exceeds the temperature of the filter press and exceeds the temperature of the filter plate, it will directly cause the filter press to deform, reduce the acid and alkali resistance of the filter plate, or accelerate the deterioration of the filter plate.
The temperature of the filtered liquid will also affect the filtration quality and efficiency of the filter cloth. After the temperature of the filtered liquid increases, the mobility of water molecules also becomes stronger, and water flows out of the filter cloth more easily. In addition, the temperature of the filtered liquid is also transmitted to the filter cloth in contact with it. The filter cloth is at different temperatures, and the pores also change directly. When the temperature is high, the fiber temperature in the filter cloth is also small. As it increases, the pore size will increase slightly, so the degree of increase will increase the filtration efficiency.
Our company also provides polyester forming fabric filter.