Explosion-Proof Fuel Purification Unit Deployed in a Mining Region of West Africa

Writer： Kaiqian Oil Purifier Release time：2025-06-10 17:41 Clicks：

Case Study: Explosion-Proof Fuel Purification Unit Deployed in a Mining Region of West Africa

An explosion-proof fuel purification system was installed and commissioned in a West African mining operation zone in 2024, specifically designed to purify contaminated diesel and light fuel oils used in heavy machinery. The site’s operational environment demanded strict safety measures due to the presence of flammable vapors and combustible dust, necessitating the use of ATEX-certified explosion-proof equipment.

The deployed unit features a multi-stage filtration system capable of removing water, particulate matter, sludge, and oxidized compounds from various grades of diesel fuel. The equipment integrates a primary coalescence-dehydration system, followed by precision filtration down to 5 microns, ensuring that the treated fuel meets ISO 4406 cleanliness standards.

The entire system is housed in a sealed, flameproof enclosure rated for Zone 1 hazardous areas, with all electrical components, including motors, switches, and sensors, compliant with international explosion-proof standards. A pressurized control cabinet isolates all sensitive circuitry and is equipped with a purging system to maintain an inert atmosphere.

Designed for continuous-duty operation, the system processes up to 5,000 liters of diesel per hour, with an onboard PLC control panel for monitoring flow rate, pressure differential, and filter status. An integrated alarm system automatically shuts down the unit in case of pressure anomalies or overheating, ensuring operational safety.

Since commissioning, the unit has been used to recover and reuse fuel from storage tanks exposed to humidity, dust ingress, and microbial contamination. The purified fuel is now reused across the site’s fleet of excavators, loaders, and generators without the risk of engine wear or injector fouling.

The explosion-proof configuration has proven essential in maintaining uninterrupted operation in a high-risk industrial environment. With minimal maintenance and stable performance, the system has contributed to cost savings in fuel procurement, reduced downtime due to equipment failure, and compliance with environmental and safety protocols.