This oil-specific purification equipment adopts macroporous silica gel decolorizing sand as the core filter medium. It combines physical interception and polar adsorption to decolor, remove impurities, eliminate odors and dehydrate waste diesel oil, engine oil, hydraulic oil, vegetable oil and more. It enables oil regeneration and qualified reuse.
Email:
xxhuaqing@126.comPhone:
+86 15936525232Physical interception: When oil passes through the silica gel sand bed, particulate contaminants and suspended solids are trapped in the gaps between sand grains.
Polar adsorption: The porous structure of silica gel (SiO₂) adsorbs pigments, colloids, oxides, odor molecules and trace moisture, turning dark and turbid oil into clear and transparent liquid.
Operation modes: It supports atmospheric pressure, pressurized operation (0.15–0.18MPa) and negative pressure operation. An air compressor can be equipped to boost flow rate for high-viscosity oil.
Medium regeneration: Saturated silica gel sand can be regenerated through solvent extraction (petroleum ether / ethanol) and drying. It can be recycled 2 to 3 times with an oil recovery rate of approximately 35%.
1. High-efficiency purification: Excellent decolorizing performance with light transmittance of 77%–82%. The acid value and color meet GB/T6540-86 standard, and the treated oil stays stable during long-term storage.
2. Simple process: No pickling, alkaline cleaning or bleaching earth required. Operates at ambient temperature, featuring short workflow, small footprint and low investment cost.
3. Cost-effective: The filter medium is reusable. Waste sand is non-sticky and non-caking, easy to dispose and reprocess.
4. Wide application range: Compatible with waste diesel oil, engine oil, hydraulic oil, heat transfer oil, biodiesel, animal and vegetable oils.
5. Easy installation: Floor-standing design. Simply connect inlet/outlet ports and power supply for operation. Sand replacement is simple and convenient.
Waste mineral oil regeneration: Decolorization and impurity removal for diesel oil, engine oil and hydraulic oil to restore original performance.
Industrial oil refining: Deep purification of heat transfer oil, gear oil and compressor oil.
Vegetable oil & biodiesel: Decolorization, deodorization and colloid removal to improve product quality.
Waste oil recycling: Reduce hazardous waste discharge, realize resource recycling and comply with environmental regulations.
By processing capacity:
Small flow (0.5–1 t/h): φ500×1500mm
Medium flow (2–3 t/h): φ800×1800mm
Large flow (5 t/h): φ1000×2000mm
By oil viscosity:
Low-viscosity oil (diesel oil): Atmospheric pressure type
High-viscosity oil (engine oil / hydraulic oil): Pressurized type
Filter medium selection:
20–40 mesh: For fast filtration
40–60 mesh: For high-precision decolorization
1. Installation: Fix the unit on a horizontal base. Connect oil inlet (bottom inlet, top outlet), oil outlet, drain port and air vent. Equip with 220V/380V oil transfer pump.
2. Sand replacement: Open the top cover or side port, discharge waste sand, fill new sand to 1/2–2/3 of tank height and compact properly.
3. Regeneration process: Extraction → Drying → Cooling → Reuse to cut operating costs.
Color: ≤ Grade 3 (transparent pale yellow)
Light transmittance: ≥ 80%
Moisture content: ≤ 0.05%
Mechanical impurities: ≤ 0.01%
Processing capacity: 0.5–5 tons per hour (matched with tank size and pump model)
Working pressure: Atmospheric pressure ~ 0.2MPa
Working temperature: Ambient temperature (no heating required)
Filter medium: 20–40 mesh macroporous silica gel sand; bulk density ≥ 380g/L; adsorption capacity ≥ 90% (RH=100%)
Material: Carbon steel / stainless steel tank, oil resistant and anti-corrosive
