High - Precision Candle Filtration System - Deep Purification & Solid - Liquid Separation Expert

Product Introduction

1. Adopts an advanced candle - type filter element design to achieve high - precision solid - liquid separation through the filter cake layer, with a filtration accuracy of up to 0.1μm.

2. The fully enclosed structure is suitable for filtering flammable, explosive, toxic, and harmful media, ensuring operational safety and environmental friendliness.

3. Equipped with an automatic back - blowing slag discharge function, it can complete filter element regeneration online, reducing manual intervention and improving production efficiency.

Working Process

1. Feeding Stage: The suspension to be filtered is transported to the filter housing by a feed pump and evenly distributed around the candle - type filter elements.

2. Filtration Stage: Under pressure, the liquid passes through the filter medium on the surface of the filter element and enters the interior of the filter element. Solid particles are intercepted on the surface of the filter element to form a filter cake layer. As the filtration progresses, the filter cake layer gradually thickens, and the filtration resistance increases.

3. Slag Discharge Stage: When the filtration resistance reaches the set value or the filtration time ends, the feeding is stopped, and compressed gas or liquid is introduced into the interior of the filter element through the back - blowing system to make the filter cake fall off and be discharged through the slag discharge port.

4. Regeneration Stage: After slag discharge, the filter element can be cleaned online with cleaning liquid to restore its performance and prepare for the next filtration cycle.

Product Features

1. High - Precision Filtration: Uses stainless steel sintered mesh or metal fiber felt filter elements, with a retention rate of over 99.9% for particles larger than 0.1μm.

2. High Degree of Automation: The PLC control system realizes fully automated operation of the whole process, supporting remote monitoring and data analysis.

3. High Temperature and Pressure Resistance: It can operate stably in the temperature range of -20℃ to 200℃ and under a pressure of 0.6MPa.

4. Energy - saving and Environment - friendly: The filter cake has a low moisture content, reducing subsequent processing costs; the enclosed structure reduces material loss and environmental pollution.

Technical Parameters

Item	Parameter Range
Filtration Area	1 - 100㎡
Working Pressure	≤0.6MPa
Filtration Precision	0.1 - 50μm
Working Temperature	-20℃ - 200℃
Filter Cake Moisture Content	≤30%
Back - blowing Method	Gas back - blowing/liquid back - blowing
Material	304/316L stainless steel, Hastelloy

Application Areas

1. Chemical Industry: Catalyst filtration and recovery, resin devolatilization, ultrafine powder classification, crystallization mother liquor filtration.

2. Pharmaceutical Industry: Active pharmaceutical ingredient purification, biological fermentation broth filtration, impurity removal from traditional Chinese medicine extracts.

3. Food and Beverage Industry: Edible oil dewaxing, fruit wine clarification, gelatin filtration, syrup decolorization.

4. Environmental Protection Projects: Industrial wastewater treatment, sludge dewatering, heavy metal recovery.

5. New Energy: Electrolyte filtration in lithium battery production, photovoltaic silicon material purification.

FAQ

Question 1: How does the candle filter handle high - viscosity materials?
Answer: For high - viscosity materials (>500cP), the following measures can be taken: 1) Increase the filtration temperature to reduce viscosity; 2) Increase the filtration pressure; 3) Select filter elements with large pore sizes; 4) Adopt the pre - coating filter aid process. The specially designed deflector ensures uniform distribution of high - viscosity materials and avoids local blockage.
Question 2: What is the service life of the filter element? How to maintain it?
Answer: Under normal use conditions, the service life of the filter element can reach 3 - 5 years. Maintenance points include: 1) Regularly back - blow to remove the filter cake; 2) Conduct integrity testing monthly; 3) Perform deep cleaning with chemical cleaning agents annually; 4) Avoid over - pressure and over - temperature operation. Replace a single filter element in time if it is damaged without replacing the whole.

Conclusion

The high - precision candle filtration system provides a reliable solid - liquid separation solution for multiple industries with its excellent deep - purification ability and automated operation. Its safe, efficient, and environmentally friendly characteristics significantly reduce production costs and improve product quality, making it an indispensable key equipment in modern industrial production.

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