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evaporative air-cooling Applications

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    Evaporation technology for mechanical & surface treatment industry

    Market segments such as automotive, aviation, furniture, appliance involve: mechanical treatments and surface treatments that require large quantity of water and produce highly pollutant wastewater that cannot be discharged directly and contribute to increase company’s running costs.

    By EVALED-Evaporator based in Zoppola (PN), ITALY.

  • Industrial solutions for cooling water contamination

    Problem: Large quantities of water are used for cooling in industrial manufacturing. To prevent scaling, corrosion and biofilm in the cooling system, inhibitors and biocides are regularity dosed. Make-up water is continuously added to the system to balance the loss of water from evaporation. As water is added, the concentration of chemicals is diluted and the quality of water changes.

    By Real Tech Inc. based in Whitby, ONTARIO (CANADA).

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    Boiler Water Testing / Cooling Tower Water Testing

    Boilers and cooling towers share two major water related problems: deposits and corrosion. As steam is generated by a boiler or water evaporating from a cooling tower, dissolved minerals are left behind, increasing the concentration of these minerals. Additional minerals are introduced via the water added to makeup the water lost to steam/evaporation. Eventually, the minerals reach a level (or cycle) of concentration that will cause either loss of efficiency due to scale or damage from corrosion. This level can be determined by the Ryznar or Langlier indices and correlated to a conductivity or TDS range. Most people recognize problems associated with corrosion. Effects from scale deposits, however, are equally important. For example, as little as 1/8` of scale can reduce the efficiency of a boiler by 18% or a cooling tower heat exchanger by 40%!

    By Myron L Company based in Carlsbad, CALIFORNIA (USA).

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    Metallurgical

    MEGTEC TurboSonic provides custom-designed atomizing technologies and air pollution control solutions for the non-ferrous metallurgical industry including Aluminum, Copper, Nickel, Zinc and precious metals producers. SoniCool™ Evaporative Gas Cooling & Conditioning controls high-temperature furnace and converter off-gases, lowering them to temperatures below other spray technologies—without wetting problems. By lowering the temperature and conditioning the gas stream, SoniCool™ protects downstream equipment from damage and improves the efficiency of downstream APC equipment, such as baghouses and electrostatic precipitators.

    By Babcock & Wilcox MEGTEC LLC based in De Pere, WISCONSIN (USA).

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    Iron and Steel

    SoniCool™ Evaporative Gas Cooling & Conditioning uses a finely atomized water spray to cool EAF, BOF off-gases from over 2,400°F (1,315°C) to as low as 240°F (115°C), protecting ductwork and downstream air pollution control equipment from high temperature and sparks, while providing rapid cooling for dioxin and furan control. By optimizing humidity levels, SoniCool™ helps electrostatic precipitators. The water spray completely evaporates while cooling gases. There is no free water and no troublesome deposits in ducts, towers or hoppers. Turbotak rugged nozzles are made to the exact requirement, and ideally suited to the harsh conditions in the steel manufacturing process while still producing ultra-fine sprays, with precise control of dropsize and spray coverage.

    By Babcock & Wilcox MEGTEC LLC based in De Pere, WISCONSIN (USA).

  • Smoke generator device for PPV & impulse ventilation testing

    When water-based artificial smoke is introduced into a rapidly moving air stream, the particles that make up the artificial smoke evaporate much more quickly than they do in a static environment. So if you are looking to produce an artificial smoke that better represents the smoke created by a real fire, we would always recommend the ViCount smoke generator, the smoke from which is virtually unaffected by fast moving air streams. Used world wide PPV training centre`s and to test impulse ventilation systems. A Home Office report into PPV (Positive pressure Ventilation) by the Head of the Fire Experimental Unit, Fire Research & Development concluded that the concept behind the technique of PPV was relatively easy to understand and the equipment simple to operate, but stressed the need for extensive training.

    By Concept Smoke Systems based in Maidenhead, UNITED KINGDOM.

  • Smoke generator device for large scale external exercises and tunnel testing

    Making smoke in a very open environment or external environment can be a challenging! An oil-based smoke generator, such as a ViCount system, can produce dramatically more artificial smoke than multiple water based systems. This is due to the fact that the smoke ViCounts produce, being oil-based, does not evaporate in the same way and speed that water-based smoke does. The smoke from a ViCount smoke generator will travel for 1000`s of meters, compared to a typical water based smoke machine that may produce a smoke visible for 100 meters. Just one ViCount or Vulcan can replace 10 or more conventional water based smoke systems. ViCount`s have been used world wide for many tunnel smoke simulations, be it for RTA training / evacuation exercises or tunnel ventilation testing.

    By Concept Smoke Systems based in Maidenhead, UNITED KINGDOM.

  • Applications and Air Pollutants Removed in the Pulp and Paper Industry

    Equipment and systems for Kraft and Sulfite mills. Control chlorine and chlorine dioxide emissions from bleaching operations. Brown stock washer emissions. Control particulate emissions from lime kilns, lime slakers, black liquor recovery boilers, furnaces and gasification units. Particulate from bark and sludge boilers and sulfur dioxide and trioxide removal from those sources. Control of hydrogen sulfide, TRS and methanol emissions from LVHC and HVLC gas streams. Complete fugitive lime dust collection systems to handle emissions from conveyors, elevators and feeders. Smelt dissolving tank particulate and TRS gases. Direct contact waste heat recovery. Black liquor evaporation. Treatment and subcooling of boiler and kiln gases to remove particulate, sulfur dioxide and TRS for precipitated calcium carbonate production (PCC). Dust from tissue and paper rollers and dryers. NASH and sodium hypochlorite scrubbing. Waste heat recovery with direct contact heat exchangers.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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