Scrubbers
Linear flow scrubber
Next generation scrubber for non-ferrous metallurgy. Compact, efficient and cost saving.
Linear Flow Scrubbers are adjustable and high-efficiency scrubbers that represent a substantial advancement on the already mature technology of the Radial Flow Scrubbers.
Used for dust and particulate removal in saturated waste gases, Linear Flow Scrubbers offer increased energy savings and efficiency thanks to their high adaptability, adjustability capacity to steadily scrub at fluctuating gas flow rates.
Best applied in copper smelting furnaces or converters, zinc smelters and roasters, lead smelters, molybdenum roasters, nickel-copper / platinum smelters and other pyrometallurgical processes.
However, Linear Flow Scrubbers are not to be exclusively used for the non-ferrous metallurgical industry.
Particular features
- Variable adjustment of the scrubbing zone
- External drives for scrubber adjustment
- CFD optimized nozzle arrangement and flow conditions
- Automatic gas pressure drop control
- Steady scrubbing at fluctuating gas flow rates
- Energy saving
- Wide range of volume flow 1:100 at constant pressure drop
- Allows for the accommodation of several scrubbing stages in a single vessel
- Enlarged scrubbing section/reaction line lead to high efficiencies
- High removal efficiencies with low pressure drop
- Compact design, smaller footprint and reduced height
Working Principle
How do Linear Flow Scrubber work?
The raw gas enters from the top. The scrubbing liquid is injected though peripherally arranged nozzles upstream the scrubbing zone. The gas and the scrubbing liquid enter from above and pass through the scrubbing zone. The scrubbing zone is characterized by an extended reaction line or gap that is formed by a movable displacer, with tapers towards the top, and a diffuser attached to the casing.
The relative velocity between the gas and the scrubbing liquid, which is decisive for scrubbing efficiency, occurs along the reaction line. By lifting or lowering the displacer the cross-section of the scrubbing zone can be varied, which allows, even with changing gas volumes, to maintain the gas velocity constant in the reaction line and to keep a constant pressure drop across the scrubbing zone. In this way, defined collecting efficiency can be ensured. The differential pressure is the control parameter.
In cases where gases are hot and not saturated, linear flow scrubbers can be combined with an upstream quench stage for raw gas saturation and pre-dedusting.
Downloads
Related Products
Annular gap scrubber
Seeking to provide a flexible unit, capable of mastering manifold industrial off-gas problems, resulted, in 1950, in the development of an adjustable annular gap scrubber which today ranks among the outstanding high-efficiency scrubbers. As far as grain size of solid and liquid dust particles and concentration of gaseous components in a gas mixtu...
Venturi scrubber
High performance separators for fine dusts and aerosols, available in different scales. Also with with customized solutions.
Jet scrubber
Versatile as fast absorber, de-duster or gas cooler. Operate according to injection principle: no pressure loss, but a pressure increase in the gas flow.
Radial flow scrubber
Adjustable flow scrubbers with high collecting efficiencies achievement even when working with critical substances. Mainly used for either gas cooling (to reduce the temperature by water evaporation) or gas cleaning (to condense aerosols and remove solid impurities).
GEA Insights
Modern herd management: a smarter way to farm
In a dairy herd, every cow has her own story – and modern herd management tools help tell it. By tracking health, habits and needs, these smart systems let farmers care better, work smarter and keep milk flowing. It's the secret behind happy herds and successful, more sustainable dairy farming.
Feeding the future: The power of freeze-drying innovation
Waste reduction is important to us at GEA, and by harnessing the power of freeze drying technology, we can transform surplus food into valuable, long-lasting products – helping to reduce waste, extend shelf life and build a more resilient food supply for generations to come.
