An industrial mist collector, also known as an industrial oil mist collector, is a device that is applied to collect the mist or smoke from the metal working fields, and provide with the clean working environments, in order to safeguard the operators as well as the machines.
Depending on the operation methods and the availability of the working fields, the industrial mist collectors can be mounted right above the machines, hung on the ceilings, or set standing on the floor. While no matter how the industrial mist collectors are arranged, they would be beside where the machines are at.
This is because the industrial mist collectors are mainly used for the metalworking machines, to receive the oil mist or smoke when those machines are operated, and send out purified air back to the working environments.
No matter how an industrial mist collector is mounted and where it is placed, a practical industrial mist collector must perform well in the collecting the oil mist or smoke and draining those particles, as these sequence of processes determine how efficient the industrial mist collector works.
In the metalworking fields, the metals, or the workpieces would undergo a series of machining works, including sawing, drilling, milling, turning, threading, or grinding, etc.
These machining works are achieved by the cutting tools and the workpieces come in contact with each other, with either the cutting tools or the workpieces spins at a high speed, so that the required parts of the materials can be removed from the workpieces.
During these machining works, when two object contact each other closely and constantly, the friction as well as the heats would be produced. In order to prevent the contacting surfaces of the tools and the works from being overheated, which may cause the deformation of the products and the damaging of the cutting tools at the same time, the coolant would be applied.
There can be either oil-based or water-soluble lubricants and coolants provided, in order to lubricate the working parts of the cutting tools and cool off the contacting surfaces, which are categorized into the metalworking fluids.
The oil mist or smoke that is produced when these metalworking fluids work can be least to 0.07 microns and up to 20 microns, while most of the oil mist and smoke are too small to be visible, but that doesn’t mean that they are no harm to the working environments.
When the oil mist or smoke is polluted to the atmosphere, the direct receivers must be the operators, and they would be going to suffer from the problems in the respiratory system or the skin irritation or inflammation, which impact to their health in the long term.
In addition, the machines would also be the receivers as well. When the machines are polluted with oil mist or smoke that congests when cooling off, the machines may gradually malfunction and wear and tear.
There are three main methods that can be applied to perform the functions of the industrial mist collectors, which purify the air to the atmosphere, including the filter filtration, electrostatic precipitation, and inertial separation.
No matter what kind of method that is used, each of them are dedicated to separate the particles and the airflow, and drain the particles properly, in order to achieve the purifying of the air with different forms, which are described below.
● filter filtration
This method is the most common in the operation of the industrial mist collectors, which utilizes layers of filters to remove the particles from the air layer by layer, and produce the purified air in the end.
The filters in the industrial mist collectors can be divided into pre-filters and main filters. The former collects most of the larger particles from the oil mist or smoke and drains them off, and the latter deals with the last and smaller particles efficiently, them send the purified air out.
● electrostatic precipitation
The filter filtration collects the oil mist or smoke by the sizes of particles, while this methods divided the oil mist or smoke by the poles.
The electrostatic precipitation creates a magnetic field, which makes it like a magnet and collect the oil mist or smoke on that field. This action is to polarize the oil mist or smoke and the airflow, which thus keeps the particles and sends the purified air out.
● inertial separation
This method should credit the phenomenon of coalescence, which reverse the properties of the oil mist or smoke. As the above paragraphs have mentioned, the oil mist and smoke are transformed by the oil-based or water-soluble lubricants or coolants.
The inertial separation is to make the mist and smoke-forms of particles back to the forms of liquids, which separate them from the airflow, and thus achieve the aim to purify the air and send it back to the atmosphere.
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