FEATURE NEWS:
High-speed fluidbed furnaces and pickling systems
Specialising in the design and manufacture of equipment for heat-treating, cleaning and coating of steel wire, QED Wire Lines Inc., Canada, has commissioned three FastHeat™ fluidbeds during the past year and another one is in production, proving the industry’s positive response to its benchmark furnace. Incorporating the latest in fluidization and combustion technologies, these furnaces offer a significant technology upgrade from older, tile based, fluidbeds. QED’s “interlaced” air and gas distribution manifold (patent pending) provides a burner system with excellent fluidization characteristics and fast heat-transfer for high-wire speeds. The company’s “injected gas” system introduces the fuel at high-velocity, immediately prior to the fluidizing chamber, thus preventing the flashback problems of older designs, and permitting the use of a wide range of gaseous fuels. QED’s unique “labyrinth seal” threading slot improves thermal efficiency and lowers maintenance costs. FastHeat™ furnaces are ruggedly constructed with heavy gauge retort walls of high-nickel alloy steel and designed to withstand the stresses of time and high-thermal cycling. A critical component of any fluidbed furnace is the sand return. QED’s double sand return system has been carefully engineered and forms an integral part of the furnace package. The system uses specifically selected eductors, vortex elbows and distribution boxes in conjunction with horizontal and vertical piping. This greatly improves performance and the life of the system, while minimising maintenance of what had once been a notorious trouble spot. In addition, the company offers its patented multiple stage HighTurbulence® pickling system, a state-of-the-art high-speed wire cleaning package. Constructed of composite materials and using advanced fluid flow technology, the design guarantees reliability and efficient pickling within a minimum length. This environmentally friendly system is a totally enclosed design that prevents acid fume escape. The system uses a specially designed nozzle configuration to produce highly turbulent acid throughout the processing tray. The wires are completely submerged in turbulent fluid that effectively breaks down the boundary layer region of spent acid. A continuous supply of fresh acid to the wire surface greatly accelerates the pickling process, permitting much shorted immersion lengths. With HighTurbulence® pickling system, each highly turbulent stage can be operated at an independent concentration and temperature. Configured with progressively higher concentrations towards the final stage, the acid can be consumed to as low as 2% at the entry, resulting in cost savings on waste treatment and raw materials.
Company: |
QED Wire Lines Inc |
Country: |
Canada |
Fax: |
+1 450 451 6465 |
Email: |
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Website: |