Project Background
A chemical manufacturing company located in Southeast Asia, primarily producing industrial auxiliaries and surfactants, generates a large volume of process wastewater containing suspended particles. The original filtration equipment was a plate-and-frame filter press, which presented issues such as frequent manual discharge, high filter cloth replacement costs, and a large footprint. The customer sought an automated, low-operating-cost solid-liquid separation device with a filtration accuracy of 5 microns and a treatment capacity of 20 tons of wastewater per day.
Solution
We customized a JYCFS-17M2 candle filter for the customer. This unit has a filtration area of 17 m², a carbon steel shell, and 38 SS304 stainless steel filter candles (1,750 mm in length) equipped with polyester filter cloth. It achieves a filtration accuracy of 5 microns. The design pressure is 6 bar, the working pressure is 4 bar, the design temperature is 150°C, and the actual operating temperature is maintained between 85°C and 90°C. The cover seal uses fluororubber (FKM), and the bottom is fitted with an automatic pneumatic blowdown valve. The complete system includes a carbon steel support frame.
Key advantages of this solution include:
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Fully automated operation, eliminating frequent manual intervention.
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Thorough backwashing and automatic cake discharge due to the candle filter structure.
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Automated slag discharge via the bottom pneumatic blowdown valve, significantly reducing manual labor.
Operational Results
After three months of continuous operation, customer feedback includes:
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Filtration performance: Suspended solids in the effluent were consistently controlled below 5 microns, meeting the customer’s requirements for water reclamation in production. No clogging or deformation of the filter candles occurred. Backwashing and regeneration were effective, and the combination of polyester filter cloth with SS304 candles demonstrated good durability.
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Automation: The bottom pneumatic blowdown valve automatically discharged slag according to the set schedule. The entire filtration and slag discharge process required no manual operation, greatly reducing the workload for onsite workers. Compared to the previous plate-and-frame filter press, approximately 2 hours of manual discharge time were saved per day.
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Operating cost: The carbon steel shell (6 mm thickness) showed robust construction with no leakage. The FKM seal performed stably at 85–90°C, showing no signs of aging or failure. After three months of use, the filter candles and cloth remained in good condition, with the replacement cycle expected to meet design expectations.
Customer Feedback
The customer’s production manager stated that this candle filter effectively resolved the challenge of removing suspended solids from process wastewater. The automatic blowdown feature made onsite operation simple and reliable. The equipment runs stably with low maintenance requirements, and the same model will be prioritized for future expansion projects.
Case Summary
This case demonstrates that the JYCFS-17M2 candle filter is well-suited for suspended solids removal from chemical wastewater. The combination of carbon steel and stainless steel balances corrosion resistance and cost-effectiveness. The automatic backwashing and pneumatic blowdown functions are ideal for industrial sites needing reduced manual intervention. The 5-micron filtration accuracy meets the requirements of most industrial liquid clarification and solid-liquid separation applications.
Post time: Jun-15-2026