Steel, iron, non-ferrous metals
The dust-producing processes involved in metalworking are diverse. Wherever metals are ground, polished, milled, or brushed, emissions in the form of dust, smoke, soot, vapors, and gases are produced. Here, it is important to take precautions with appropriate dust extraction solutions.
Infastaub has been supplying dust extraction systems to metalworking companies for decades. The range extends from miniature filters for individual applications to large-scale systems for central dust extraction.
Examples
Dust removal from a grinding plant for the production of permanent magnets
Two grinding systems for the production of permanent magnets are dedusted using a two-stage INFA-MICRON MPR 2/20-2/20 filter system. The fine filter system protects the downstream gas compressor from residual particles and minimizes wear. Cleaning is performed using jet pulse technology, and both filter stages are equipped with filter cartridges through which the gas flows in opposite directions. After filtering, the dust load is reduced to a residual dust content of less than 1 µg/m³. Since the process is operated with inert gas in the circuit, the filter devices are designed to be gas-tight in order to prevent the ingress of false air.
Technical specifications
| filter type | MPR 2/20-2/20, two-stage | |
| filter area | [m²] | 40 per filter stage |
| filter class | H11 or H13 according to EN1822 | |
| residual dust content | [µg/m³] | < 1 |
Dust removal from a brushing machine
A brushing machine is in operation in a knife manufacturing factory. The dust-laden exhaust air is extracted from this machine and cleaned in an INFA-BOY small dust collector. The device can be operated on wheels for mobility or mounted on a wall with a bracket.
The filter cloth is cleaned by an electric motor.
Technical specifications
| filter type | IFB 66 | |
| volume flow | [m³/h] | 825 |
| filter area | [m²] | 6 |
| Filter material | Polyester fabric, oleophobic and hydrophobic |