Candle filter
- 0.5-800μm
- candle filter cartridge
- S.S 304, 316L, Carbon steel
- 1-60m2
- 1-200°C
Structural Composition
The candle filter primarily consists of a cylinder body, candle filter elements, filter cloth, filter aids, and a PLC automatic control system, supplemented by auxiliary equipment such as air compressors and pumps.
- Cylinder Body and Filter Element Materials: Stainless steel (304/316/321), carbon steel, titanium, etc.
- Filter Cloth Materials: PP, PE, PPS, PTFE, nylon fiber, etc.
- Filtration Aids: Activated carbon, diatomaceous earth. Recommended dosage is 1%–3% of the material volume, adjustable based on process requirements.
| Model | Cartridge QTY | Cartridge Size(mm) | Filtering Area(m2) | Capacity(t/h) | Housing Volume(L) | Inlet | Cake Discharging Outlet | Total Height(mm) |
|---|---|---|---|---|---|---|---|---|
| DZZS-1 | 7 | 90*500 | 1 | 2.2 | 140 | DN25 | DN150 | 1902 |
| DZZS-1.5 | 10 | 90*500 | 1.5 | 3.3 | 180 | DN25 | DN200 | 1928 |
| DZZS-2 | 7 | 90*1000 | 2 | 4.4 | 220 | DN32 | DN150 | 2402 |
| DZZS-3 | 10 | 90*1000 | 3 | 6.6 | 280 | DN40 | DN200 | 2428 |
| DZZS-4 | 14 | 90*1000 | 4 | 8.8 | 400 | DN40 | DN200 | 2502 |
| DZZS-6 | 19 | 90*1000 | 6 | 13.2 | 560 | DN50 | DN250 | 2578 |
| DZZS-8 | 24 | 90*1000 | 8 | 18 | 740 | DN65 | DN250 | 2644 |
| DZZS-12 | 40 | 90*1000 | 12 | 26 | 1200 | DN65 | DN300 | 2854 |
| DZZS-18 | 64 | 90*1000 | 18 | 40 | 1800 | DN80 | DN400 | 2904 |
| DZZS-30 | 106 | 90*1000 | 30 | 66 | 3000 | DN100 | DN500 | 3440 |
| DZZS-40 | 140 | 90*1000 | 40 | 88 | 3815 | DN150 | DN500 | 3560 |
| DZZS-60 | 190 | 90*1000 | 60 | 132 | 5700 | DN150 | DN500 | 3700 |
Working Principle
The candle filter is a fully enclosed filtration device comprising multiple porous candle-shaped filter elements covered with filter cloth. During filtration, solid particles gradually accumulate on the filter cloth surface, forming a dense filter cake layer. The minimal interstitial space within the filter cake layer effectively traps impurities in the liquid, clarifying the filtrate. Hence, this equipment is also known as a filter cake layer filter.
When the filter cake layer thickens to a certain extent, filtration resistance increases and flow rate decreases. The system automatically initiates a backwash program based on pressure sensor signals to discharge filter residue and remove the old filter cake. Subsequently, a new filter cake layer reforms, entering the next filtration cycle to achieve continuous, efficient, and automated operation.
Product Features
- Fully Enclosed Solid-Liquid Separation System: The entire process—filtering, washing, drying, and residue discharge—is completed within a sealed container, ensuring zero leakage and pollution. This streamlined workflow reduces labor costs.
- True Dry-Wet Separation: Guarantees high-precision clear liquid filtration while automatically discharging dry filter cakes, eliminating manual filter element cleaning.
- PLC-Controlled Automation: Highly automated operation significantly reduces labor and time costs compared to traditional filter presses and plate-and-frame filters, ensuring continuous production.
- Automatic Cleaning and Regeneration: Reusable filter media minimizes consumable replacement and disposal costs.
- High-Precision Filtration Capability:Achieves sub-micron filtration, effectively resolving incomplete filtration and leakage issues in high-solids-content materials.
- Reliable Structure, Economical Operation:Combines static main structure with dynamic backwashing for low failure rates and operating costs; grouped filter element design reduces energy consumption and enhances operational safety.
- Next-Generation Mainstream Filtration Solution:Gradually replacing filter presses and bag filters to boost production efficiency, lower accident risks, and save labor investment.
Applications
Chemical Industry
Pesticide intermediate filtration and recovery; PTA mother liquor, PVC powder, high-purity alumina filtration; solvent oil, white oil, amine solution desulfurization and decarbonization filtration; Desalting filtration of biomass oil and oil sands crude; filtration of filter aids (activated carbon, diatomaceous earth, etc.); filtration in inorganic salt production.
Water Treatment Industry
Filtration of various industrial wastewater (heavy metals, electroplating, battery, coal mining, fluoride-containing wastewater, etc.); filtration of suspended solids wastewater; filtration of grinding liquids and pigment emulsion waste liquids; filtration of river water, groundwater, spring water, and domestic water.
Beverage and Food Industry
Precision filtration of fructose syrup and various fruit juices; decarbonation and decolorization filtration of citric acid, malic acid, lactic acid, etc.; filtration of lycopene and monosodium glutamate; filtration of yeast and soy protein; filtration of soy sauce, vinegar, alcohol, and various beverages; precision filtration of edible oils, crude oils, and blended oils.
Pharmaceutical Industry
Biopharmaceutical filtration; fermentation broth filtration; crystal and mother liquor filtration; suspension filtration; catalyst filtration and recovery.
Oil and Ink Industry
Dewaxing, decolorization, and precision filtration of industrial oils, biodiesel, lubricants, hydraulic fluids, transformer oil, diesel, kerosene, etc.; precision filtration of vegetable oils and edible oils.
