E-mail sinonshseo@gmail.com
Time：2025-05-08 10:44:58 Reading volume：
Industrial oil filter centrifuge is a highly efficient and multifunctional oil purification equipment, mainly used to remove pollutants (such as water, solid particles, colloids, etc.) from industrial lubricating oil, hydraulic oil, transformer oil and other oil products to restore or improve the performance indicators of the oil products. Its core functions can be summarized as follows:
(1) Dehydration (free water & emulsified water)
- Function: Separate water with da ensity greater than oil through centrifugal force (free water removal rate ≥95%).
- Effect: After treatment, the moisture content can be reduced to ≤50ppm (the standard for new oil is usually ≤10ppm).
- Applicable scenarios: hydraulic oil and transformer oil used in humid environments.
(2) Solid particle filtration
- Function: Separate metal chips, dust and other particles (particle size ≥1μm, removal rate ≥98%).
- Effect: The oil cleanliness can reach NAS 1638 Class 6 or higher.
- Applicable scenarios: gearbox oil and engine oil regeneration.
(3) Removal of colloids and oxidation products
- Function: Some centrifuges can be combined with adsorbents (such as activated clay) to remove colloidal substances.
- Effect: Reduce the risk of sludge formation and extend the life of oil products.
- Insulation performance recovery (transformer oil):
- Breakdown voltage increased from ≤30kV to ≥60kV (IEC 60156 standard).
- Lubrication performance recovery (industrial lubricants):
- Reduce equipment wear and friction coefficient (such as gearbox oil film strength restored to ASTM D2782 requirements).
- Thermal conductivity optimization:
- After removing impurities, the thermal conductivity of the oil is increased by 15~20%, avoiding equipment overheating.
- Cost savings:
- The cost of regenerated oil is only 30~50% of new oil (such as hydraulic oil regeneration costs about ￥2000/ton vs new oil ￥6000/ton).
- Equipment protection:
- Reduce mechanical failures caused by oil contamination (such as bearing wear, hydraulic valve jamming), and reduce maintenance costs by 40 %+.
- Waste reduction:
- Reduce waste oil emissions and comply with regulations such as the EPA and EU Waste Framework Directive.
- Resource recycling:
- Support the circular economy, with a reuse rate of oil products of 70~90%.
| Industry | Type of processed oil | Core requirements |
|------------------|---------------------|-----------------------------|
| Electricity | Transformer oil | Dehydration, degassing, and improving breakdown voltage |
| Manufacturing | Hydraulic oil, gear oil | Remove metal particles and reduce equipment wear |
| Ships | Engine oil | Remove carbon deposits and moisture, and extend the oil change cycle |
| Petrochemical | Process lubricating oil | Separate colloids and prevent pipeline blockage |
| Parameter | Index |
|-------------------|----------------------------------|
| Processing capacity | 200~5000L/h |
| Separation factor (Z value) | ≥8000 |
| Motor power | 5~75kW |
| Working temperature | 50~70℃ (heating type) |
| Filtration method | Advantages | Limitations |
|--------------------|--------------------------------|-------------------------------|
| Centrifugal filtration | High efficiency dehydration, no consumables, large processing capacity | Limited effect on dissolved water (<50ppm) |
| Vacuum oil filtration | Deep dehydration (≤5ppm) | High energy consumption, complex equipment |
| Electrostatic oil purification | Remove submicron particles (0.1μm) | Cannot handle water |
- Pretreatment: First pass through a 10μm filter to remove large particles and protect the centrifuge.
- Maintenance cycle: Lubricate the bearings every 500 operating hours and clean the drum regularly.
- Safety tips:
- Explosion-proof design (ATEX certified) for flammable environments.
- Grounding to prevent static electricity.
Industrial oil filtration centrifuge is the core equipment for oil maintenance, especially suitable for high-pollution or large-volume oil processing scenarios (such as power plants and steel plants). When selecting a model, it is necessary to match the equipment parameters according to the oil pollution type (water/particles/colloids) and the processing volume.
