Causes, hazards and solutions of high slurry inlet pressure of Chamber Filter Press 1. Reasons and hazards of high pulp inlet pressure of box Filter Press 1. 1.Reasons for high slurry feeding pressure (1) Excessive slurry feed flow: If the feed flow exceeds the range that the box filter press equipment can handle, the box Filter press will be subject to excessive pressure, resulting in an increase in the slurry feed pressure. (2) Blockage of Filter medium: When the filter medium (such as filter cloth or Filter Plate) is blocked by solid particles, it will hinder the passage of liquid and cause the pressure of slurry to increase. (3) Damage to the filter medium: Damage to the filter medium will increase the resistance of the fluid to pass through, thereby increasing the slurry feeding pressure. (4) Increase in liquid viscosity: The increase in liquid viscosity will lead to an increase in the resistance of the liquid through the filter medium, thereby increasing the slurry feeding pressure. 2. The danger of high slurry feeding pressure (1) Increased force on the equipment: Excessively high slurry inlet pressure will cause the filter press to be subjected to additional force, which may cause deformation, rupture or other structural damage of the equipment. (2) Decreased filtration efficiency: Excessively high slurry inlet pressure will affect the Solid-liquid Separation process, resulting in a decrease in filtration efficiency and failing to achieve the expected separation effect. (3) Increased operating energy consumption: High pulp feed pressure means that the equipment needs more energy to drive, which increases the operating energy consumption of the equipment. (4) Shortened equipment life: Long-term high-pressure operation will accelerate the wear and aging of equipment and shorten the service life of equipment. 2. Solutions to the high pressure of the chamber filter press 2.1 Control the pulp inlet flow: Reasonably control the pulp inlet flow to ensure that it does not exceed the processing capacity of the equipment and avoid excessive pulp inlet pressure. 2. Regularly clean the filter medium: Regularly clean the filter medium to prevent clogging of solid particles and maintain the smoothness of the filter medium. 3. Regularly replace the filter medium: according to the usage, regularly replace the damaged or aging filter medium to ensure the filtering effect and normal operating pressure. 4. Control the viscosity of the liquid: if possible, by adjusting the temperature of the liquid or adding a diluent, etc., the viscosity of the liquid is controlled to reduce the pressure of the slurry. 5. Regular maintenance and maintenance: Regular maintenance and maintenance of the box filter press, including cleaning, lubrication, inspection, etc., to ensure the normal operation and performance of the equipment. To sum up, the possible reasons for the high slurry inlet pressure of the chamber filter press include excessive slurry inlet flow, filter media blockage, filter media damage, and increased liquid viscosity. Corresponding solutions need to be taken, including controlling the inlet flow and cleaning regularly. And replace the filter medium, control the viscosity of the liquid, etc., so as to ensure the normal operation of the chamber filter press, improve the filtration efficiency and the service life of the equipment.
