Nowadays, laser cutting machines have two dust removal methods. The first is an exhaust system. As the name suggests, the exhaust system is to exhaust dust particles into the atmosphere through an exhaust fan. Although this method is simple, it does not fundamentally solve the dust problem. The pollution is inevitable; the second method is to use filtration technology. Filtering dust removal equipment has appeared as early as the 1970s, and has the advantages of small size and high efficiency, but because of its small equipment capacity and low filtration wind speed, it cannot handle large air volumes. , The application range is narrow. Due to the emergence of new filter materials and the improvement of the design of dust removal equipment, the application of filter element type dust removal equipment in dust removal projects has gradually increased.
The characteristics of filter element dust removal equipment are as follows:
1. Used in the filter grid, the layout density is high, the dust removal equipment is compact in structure, small in size, and the filter performance requires high rigidity;
2. The filter element is small in height and easy to install.
3. Compared with the dust removal equipment of the same volume, the filtering area is relatively large, the filtering wind speed is small, and the resistance is not large;
4. The filter grid requires strict sealing at both ends and no air leakage, otherwise the effect will be reduced.
The particle size of the dust of the laser cutting machine is extremely small, and the flue gas may contain oil and fire. The filter has a high probability of fire. The quality of the filter material of the dust collector must be good for long-term use. The use of coated flame-retardant filter material is a must At the same time, combined with reasonable filtering wind speed, partial flow distribution in the dust collector, high-efficiency pulse cleaning system, and reasonable selection of fans, etc., it can ensure the long-term and safe operation of the cutting fume dust collector.