With candle - shaped filter elements as the core filtration units, it achieves high - precision solid - liquid separation through the interception of the filter cake layer, with a filtration accuracy of 0.1 - 50μm.
Suitable for filtering liquids with high viscosity and high solid content, it can handle complex working conditions such as catalyst filtration and recovery, resin separation, and wine clarification.
Equipped with an automated operation function, it supports online filtration, slag discharge, and filter cake washing to ensure production continuity.
Material Conveyance: The liquid to be filtered is transported to the closed cavity of the filter by a feed pump.
Filtration and Interception: The liquid passes through the filter medium on the surface of the filter element under pressure. Solid particles are intercepted to form a filter cake layer, and the filtrate is collected and discharged from the center of the filter element.
Filter Cake Thickening: As the filtration progresses, the filter cake layer gradually thickens, and the filtration resistance increases. The system continuously monitors the pressure difference between the inlet and outlet.
Back - blowing and Slag Discharge: When the pressure difference reaches the set value or the filtration time ends, compressed air is blown out in the reverse direction from the inside of the filter element, causing the filter cake to fall off and be discharged through the slag discharge port.
Filter Cake Washing (Optional): If it is necessary to improve the solute recovery rate in the filter cake, washing liquid can be injected into the filter to wash the filter cake multiple times before slag discharge.
High - precision Filtration: Can meet the strict requirements for filtration accuracy in different industries, and the filtrate after treatment is clear and transparent.
Continuous Operation: The functions of online filtration and slag discharge enable filter cake cleaning without shutdown, increasing production efficiency by 50%.
Versatility: Supports processes such as filter cake washing and drying, achieving resource recovery and waste reduction.
Corrosion - resistant Design: Filter elements and tanks are made of materials such as stainless steel and Hastelloy, suitable for filtering corrosive liquids such as acids and alkalis.
| Item | Parameter Range |
|---|
| Filtration Area | 5 - 100㎡ |
| Working Pressure | ≤1.0MPa |
| Filtration Precision | 0.1 - 50μm |
| Applicable Temperature | -20℃ - 150℃ |
| Filter Element Material | Stainless steel sintered mesh, polymer filter cloth |
| Treatment Capacity | 1 - 100m³/h |
Chemical Industry: Catalyst filtration and recovery, resin devolatilization, chemical raw material impurity removal.
Food and Beverage Industry: Edible oil dewaxing, wine clarification, juice filtration.
Pharmaceutical Industry: Fermentation broth separation, traditional Chinese medicine extract filtration, active pharmaceutical ingredient purification.
Environmental Protection Field: Industrial wastewater pretreatment, sludge dewatering, oil - water separation.
Question 1: How does the candle filter handle high - viscosity materials?
Answer: It is possible to select filter elements with large pore sizes, increase the feed temperature to reduce the viscosity of the material, or adopt a step - by - step filtration method. At the same time, the equipment is designed with a high - pressure back - blowing system to ensure the smooth discharge of high - viscosity filter cakes.
Question 2: How to select the washing liquid during the filter cake washing process?
Answer: Select the washing liquid according to the chemical properties of the filter cake and filtrate, such as organic solvents, deionized water, or specific acid - base solutions. Small - scale tests are required before washing to ensure that the washing liquid does not dissolve the target product and can effectively replace the residual filtrate in the filter cake.
The efficient candle filter has become a key equipment for solid - liquid separation in multiple industries with its deep - filtration ability and flexible process adaptability. Its stable and reliable performance and automated operation can reduce labor costs, improve product quality and resource utilization, and create significant benefits for enterprises.
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