//The art of metal grinding without dust emissions

1) Direct emission capture:

Depending on the workpiece and grinding tools used, the grinding dust can be extracted directly at the source. Grinding machines often have housings from which the abrasive dusts can be directly extracted. For optimum capture and filtration of the hazardous grinding emissions, we offer individual capture facilities as well as suction arms, walls or tables with corresponding filter systems.


2) Grinding cabins:

Grinding cabins are the ideal solution when large workpieces are ground and multiple sides are processed. They ensure that the dusts emissions are not distributed in the whole production hall. The grinding cabins are equipped with integrated air purification technology. In which the emissions are captured via the suction walls, and the cabin is supported with fresh air. Depending on the design, the grinding cabin also allows optimum noise protection for the remaining workforce. We offer an extensive range of grinding cabins from small to large.


     


Harald Schneuber, Kappa project manager reports: "Some time ago a machine builder approached us and asked us to restructure the grinding process. The large components were processed distributed around the hall, which lead to significant dust exposure and contamination of the entire hall. We developed and installed a solution with large-scale, welcoming and well-lit grinding cabins. The loading and unloading took place from the front or rear via a forklift. Each cabin is fitted with a crane. The cabins are bright and welcoming, designed with their own lighting concept. The emissions are captured via suction walls integrated in the walls, and the cabins are supplied with fresh air. In addition, each cabin has a central extraction system for cleaning purposes. The entire air purification technology is integrated on one equipment room. After a short operating time, the customer confirmed the excellent working conditions in the cabins and that the dust deposits in the hall had largely disappeared, so the cleaning effort in ongoing operations could be significantly reduced. "


       

3) Optimum air purification technology: a combination of direct capture and in-hall air cleaning


Optimum protection of the employees from abrasive dust can be achieved through a combination of direct capture and in-hall air cleaning. The emissions are captured directly, if possible, and are deposited in decentralised or central filter systems. Emissions that are difficult or impossible to capture within the hall are then captured and filtered via the Kappa in-hall air purification system. In this process, excess heat is recovered and used for heating the supply air during the heating period. The in-hall air cleaning system supplies the production hall with fresh air, thus ensuring a balanced air management.

"The systems supply the whole hall with clean fresh air at the correct temperature and therefore also set new benchmarks in energy efficiency, in that excess heat can be recovered with a high degree of efficiency", explained Karl Rieger, Technical Director of Plant Engineering at Kappa.


4) Risk of fire and explosions averted:


Depending on the base materials of the workpiece to be ground, sparks or explosive dusts may also occur. The type safeguards required for emission capture and filtration is dependent on the corresponding risk and hazard assessment and the resulting EX-zoning according to the ATEX Directive. The protective concepts which result from this range from organisational measures through to technical explosion protection. We deal daily with fire and explosion protection concepts and provide comprehensive consulting in planning as well as designs that are legally compliant with the ATEX Directive.


     

Steyr Gleink, February 2017