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LBF builds stainless steel tanks and vessels in virtually any design: round, rectangular, Non-pressure, pressure vessels, all with or without interior fittings. In this project, the stainless steel vessel is used as an unpressurised filter with a supported intermediate floor and covered with perforated sheet metal to hold filter material. The design data – main dimensions, required volume, connection openings – is customer specified. The details of the design are determined during the drafting.

Exhaust air or wastewater flow often accumulates in industrial plants and needs to be chemically or thermally treated – as an alternative, filter systems can be used. The customer or planner decides on the most sensible process and LBF designs and constructs the corresponding vessels –stainless steel 1.4301 or 1.4571 is usually used here with a typical thickness of 3-6 mm. In particularly critical cases, an additional interior coating (e.g. rubber lining) can be applied.

For the storage and mixing of bulk goods in the food industry, silos are usually designed with a conical outlet for an optimal handling of the goods. Cold-rolled steel is used for materials that come in contact with the media; if required corresponding material certificates are available. During fabrication, close attention must be paid to a gap-free welding and interior weld seams must be ground flush with the sheet metal (Ra<0,8 μm). The final surface is treated with ceramic or glass bead blasting.

Rubber linings are also interior coatings that, however, are applied some millimetres thick. Its resistance to chemicals depends on the type of rubber lining and can be quite high. Rubber linings are considerably more stable in comparison to other coatings with respect to abrasive media, i.e. media with hard, sharp-edged elements. Before the rubber lining can be applied, the interior surfaces of the tank or vessel and the weld seams, must be flawlessly welded and ground – without edges, without pores.

Aside from the standard duct system, special components are also needed in microchip facilities, such as silencers, multi-leaf dampers, or exhaust air collectors in tube form with diameters of several meters. These collectors are the key component of the exhaust air facility. This is where the exhaust air from all of the machines meets to then be redirected to the scrubber systems. If the collector fails, there will be a complete halt to production. The collectors must be statically calculated and designed; the maximum length of the single pieces is defined by the Halar-furnace measurements.

Pressure and leakage tests are used to assess the completed components and are considered a part of the quality inspection. Tanks, vessels and pipe systems can all be tested. These can be customer specified tests or legally required inspections, such as the final inspection and pressure test for pressure vessels. In addition to the stability, the tightness of the weld seams and the flange connectors is verified. This can be done at the factory for pre-assembled components, or on site for complete systems.

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