Extraction table
The term extraction table is an umbrella term for systems that use air or water to remove harmful particles and / or gases. Extraction tables are used in the metalworking industry to extract and filter the smoke and dust generated when cutting and welding metals. People in the vicinity are protected from damage to health and machines from malfunctions. Extraction tables thus make a major contribution to occupational safety.
Extraction tables are often divided into individually extractable segments in order to keep the extraction performance as low as possible. Depending on the type of system, the individual segments can be extracted manually or fully automatically via the control of the cutting system. The dimensions and performance of the extraction tables must correspond to the respective flame, plasma or laser cutting system. Different interchangeable cutting supports enable an improved cutting quality corresponding to the needs. The pre-cleaning of the extracted air by means of a pre-separator serves to protect against filter fires triggered by sucked-in sparks. This also increases the service life of the filters used considerably.
cleaning and maintenance
The maintenance and cleaning of extraction tables is made possible by removable material supports as well as dust and slag containers in which the hazardous substances are collected.
Flame cutting tables
Flame cutting tables are specially designed for the requirements of plasma, laser or flame cutting: With these processes, dust and sparks are whirled up in the extraction table by the cutting pressure and rise. This makes surface suction necessary in addition to conventional suction from below or from the side. The individual modules of the cutting table are divided into segments. A segment control enables only the section to be opened that is currently being cut. In this way, energy costs can be saved with optimal extraction. Cleaning distances are increased by means of large dust and slag containers.
Water cutting tables
Water cutting tables have been specially developed for plasma fusion cutting. By cutting sheet metal plates under water, the cutting dust can be largely absorbed and the noise pollution can be greatly reduced. Very little material distortion and a high cut quality are further advantages. It is operated manually or automatically via the cutting system control. The slag produced during cutting is collected in slag trays that are located below the material support and can be lifted out and cleaned after the water level has dropped and the material support has been removed. In the case of water cutting tables with automatic discharge, the resulting slag and small cutting residues are transported out of the table during the cutting process and collected in an adjacent container.
commitment
Extraction tables are used e.g. B. at:
- Sweat fume extraction
- Extraction of exhaust gases during plasma fusion cutting
- Extraction of exhaust gases during laser cutting
- Extraction of exhaust gases during flame cutting
- Extraction of exhaust gases during welding
- Extraction of suspended dust
- Extraction of welding particles