The Practical Application of Activated Carbon Filter Boxes in Laser Processing

Activated carbon filtration boxes efficiently absorb harmful gases and particles in laser processing, improving the working environment and extending the life of equipment.The article explains the filtration principles, installation considerations, and long-term performance of these systems, to help readers choose the best air purification equipment to solve the problem of waste gas treatment in laser processing.

Why does laser processing require an activated carbon filter box?

When people think of laser processing, they probably first think of precision cutting or engraving, but the smoke and fumes produced during the process are often overlooked.These exhaust gases contain metal dust, resin volatiles, and even harmful gases. Not only do these affect the health of the workers, they can also corrode the internal parts of the equipment.At this point, the activated carbon filter becomes the "key player" in the solution.

How strong is the ability of activated carbon to adsorb?

The surface of activated carbon is covered with a honeycomb-like structure of tiny pores, which act like little pockets that catch harmful substances in the exhaust fumes.Experiments have shown that the system can achieve an absorption rate of over 95 % for particles over 0.3 microns in diameter, and that it is especially effective at filtering out organic pollutants such as acrolein and benzene, which are common in laser processing.In one case, a metal processing plant installed an air filtration box, and the PM2.5 concentration in the workshop dropped 80 %.

Choosing the right equipment is the key to getting the job done.

There are many different brands of activated carbon filter boxes available on the market, but not all of them are suitable for a laser processing environment.First, the exhaust volume must match the power of the laser machine. Second, the thickness of the filter layers should be considered. It is recommended to choose a filter with a dual-layer activated carbon + HEPA structure. Finally, the convenience of filter replacement should be considered. Some complex designs require the removal of half the housing to replace the filter, which can make maintenance a nightmare.

Location is important.

I've seen a lot of factories put the filters right beside the machines, with the result that the vacuum effect is greatly diminished.The proper way is to place the air intake as close as possible to the area where the laser head works, and maintain a heat dissipation distance of 30 centimeters or more.If several laser machines are connected to a single filtration system, remember to install a control valve on the main pipe to prevent the machines from "fighting" for air.

The long-term hidden costs.

But don't think that once you buy a charcoal filter you're all set. Maintenance costs are the real focus.A good quality activated carbon filter can last 6-8 months, but a poor one may have to be replaced every three months.There is a little trick to tell everyone: If you periodically remove the filter and expose it to the sun, it can regain some of its adsorption power. But don't expose it to the sun for more than two hours, otherwise the microstructure will be damaged.

Finally, if you encounter a sudden increase in the pungency of the odor, don't just think about replacing the filter, first check to see if there is a leak in the pipe.Last year, a factory that made handicrafts changed the filter three times, only to find that the problem was the aging of the rubber seal.