Industrial oil fume purifier and industrial oil mist purifier are two product terms that we commonly use. Many peers default that these two products are the same. Even some search engines and third-party platforms don't make a distinction, so that users often see both types of products mixed together when searching for these two terms. So, this article will briefly discuss this issue.

Let's understand it literally - the processing object of the industrial lampblack purifier is lampblack, as the name suggests, oily smoke. The industrial oil mist purifier treats oil mist, as the name suggests, oily mist. You can first think about the difference in form between "smoke" and "mist" based on your own life experience. Is the difference obvious?

Then, let's take a look at the scientific meaning of these two words.

Oil fume is a mixture of oily droplets and solid particles floating in the air. It can also be called oily waste gas and oily dust. It is more common in food processing, material processing, machining, heavy casting, plastic product processing, etc. . It is a thermal oxidative decomposition product of oil substances at higher temperatures. When the temperature reaches the smoke point of oil substances, an initial decomposed blue smoke will appear. As the temperature continues to rise, the decomposition speed will increase. There will be a lot of oil smoke and a pungent odor when the substance is near the ignition point. It is characterized by small particle size, generally between 0.01 microns and 0.3 microns, and high viscosity.

Oil mist is mist-like oily droplets and steam, which are more common in metal processing machine tools. In the process of metal processing, in order to effectively lubricate, cool and clean, metal processing lubricants have to go through the process of pump circulation, spray, jet and violent impact of high-speed rotating tools and high temperature evaporation. This heat is concentrated in the small contact part between the cutting edge and the workpiece to be cut, causing the local temperature to instantly rise from room temperature to about 1000 °C. In order to reduce the cutting temperature, the cutting heat generated during cutting must be quickly taken away, which requires the use of coolants—emulsion or oil, kerosene, water, etc. When the coolant sprays, collides with the tool and the workpiece, and is evaporated by the cutting heat, mist droplets and steam are generated, which forms the so-called "oil mist". Whether the coolant is water-based or oil-based further affects the shape of the "oil mist". The oil mist produced by the water-based cutting fluid contains a lot of water vapor, and the oil mist produced by the oil-based cutting fluid has a high oil content. The oil mist purifiers corresponding to these two different forms are usually different. Oil mist is characterized by a wide range of particle diameters, usually 2-10um, and relatively low viscosity.

It can be seen from the above explanation that both "oil fume" and "oil mist" contain oily droplets. How to remove these oily droplets is a common problem faced by the two types of working conditions. At present, the widely used process for purifying and collecting oily droplets in the market is the high and low voltage electrostatic degreasing process. Therefore, the high and low voltage electrostatic degreasing equipment is used in the fields of oil fume treatment and oil mist treatment. Our company's ESM type and ESM-S Type 2 products are such representatives. However, the composition of "oil fume" is a little more complicated, and it is necessary to consider the removal of "oil" and "smoke" during processing, and the particle size is smaller, so the processing is more difficult, generally need to add other equipment before and after the electrostatic treatment process Form a combined processing system. The composition of "oil mist" is relatively simple, and clean oil mist can even be directly recycled and reused.

For example, a new gearbox production project, the products include box processing, gear processing and shaft parts processing. Its processing technology includes turning, milling, boring, grinding, drilling, etc., as well as machining center processing, CNC machine tool processing, and gear processing, which are all cold working processes; and hot working processes include quenching and tempering, carburizing and surface quenching. and other heat treatment processes. In the cold working process, in order to cool the tool and the workpiece, it is necessary to spray emulsion or oil to quickly take away the cutting heat, especially for gear processing, a large amount of oil should be sprayed to ensure the durability of the gear tool and the processing quality of the gear. At this time, "oil mist" will be produced. When quenching, using oil as a quenching agent will produce "oil fume". The "oil mist" produced by the cold working process can be treated by our company's high and low voltage electrostatic oil mist purifier. One-to-one stand-alone type or one-to-many centralized type can be determined by the on-site working conditions, but the quenching "oil mist" generally needs to use our The company's pure high-voltage electrostatic oil fume purifier and high and low-voltage electrostatic oil fume purifier are combined for better treatment.

The machine tools in some workshops also produce oil fume, which is generally caused by the poor oil fume resistance of the cutting oil. Please choose a high-quality cutting oil or replace it with a cutting fluid. The reason for the oil fume is the poor wear resistance. Lubricating oil occurs during high-speed grinding of tools and workpieces. It is also possible to adjust the machining parameters of the machine tool appropriately.

The composition of gaseous pollutants produced in some working conditions is relatively complex, and it may be difficult to define with a single word, which requires specific analysis of specific problems. It is indeed difficult for many users to distinguish clearly when looking for suppliers. Therefore, it is recommended to inquire directly. It is better to ask a hundred times.