What is an Industrial Oil Filtration System?

What is an industrial oil filtration system?

An industrial oil filtration system is a device whose function is to restore the quality of lubricating oil or hydraulic oil used in hydraulic devices to prevent it from deteriorating. Normally, when the oil in the equipment deteriorates, we will choose to discard it and ｒｅｐｌａｃｅ it with new oil.

However, this practice will cause a series of problems, such as the purchase cost of new oil, the cost of oil treatment, and the increase in environmental burden. Therefore, oil recovery and reuse are crucial to reducing costs and environmental pressure.

Not only that, the industrial oil filtration system can filter the oil while the hydraulic equipment is running, which has a positive effect on preventing hydraulic equipment failures. Because most hydraulic equipment failures are caused by contaminated hydraulic oil. Therefore, the introduction of industrial oil filtration systems helps to ensure the smooth operation of hydraulic equipment.

Application occasions of industrial oil filtration systems

Industrial oil filtration systems are mainly installed in factories equipped with hydraulic equipment. These hydraulic equipment are the power source of steelmaking machinery and machine tools and are an indispensable part of the production process.

In recent years, many factories have been operating around the clock, and the failure of hydraulic equipment will undoubtedly hinder the smooth progress of production.

In addition to hydraulic oil and lubricants used in hydraulic equipment, industrial oil filtration systems also play an important role in the food and automotive industries. In the food industry, taking the catering industry as an example, food oil is used in deep fryers. If old oil is used continuously, the taste of fried food will deteriorate and impurities will adhere to the food. The use of old oil will also affect the quality of food. Therefore, industrial oil filtration systems are used to clean oil to reduce oil costs and ensure food quality.

In the automotive industry, oil filtration systems serve as "purification devices" for coolants during processing.

Industrial oil filtration systems can also recycle chips and sludge generated during cutting operations, extending the life of coolants and reducing consumption.

Working principle of industrial oil filtration systems

Common filtration methods use the principle that solid particles are trapped when oil passes through porous filter materials. In addition, some principles use magnets or centrifugal force to remove oxidation products in oil. This article focuses on the most widely used porous filters.

According to the oil flow rate and the replenishment of solid particles, porous filters can be divided into three types: surface, edge, and depth.

Surface type

The surface type uses a simple filtering method, and the filtration is mainly carried out on the surface of the filter. Therefore, the filter has a small pressure loss, but the capacity to hold solid particles is also limited. The filter is mainly made of metal mesh and is suitable for coarse filtration. For fine filtration, paper impregnated with coalescing resin and thermoformed is used.

Edge type

The edge type is a radial gap formed around the periphery of the filter material, and the oil is filtered as it passes through the gap. This method is suitable for situations where the fluid pressure is high. Moreover, the filter material can be reused.

Depth type (porous filter again)

When using porous filters, special attention should be paid to prevent solid particles from clogging only the outer surface of the filter medium. The filter can be made of materials such as thin felt, compressed cotton, cellulose fiber, flannel, molded asbestos, or sintered metal powder.