THE FUTURE OF RECYCLING
POWER
from 1 MVA to 10 MVA*
(*Higher powers on request)
DUST EMISSIONS
guaranteed within the limits of the law
EMISSIONS IN THE ATMOSPHERE
mainly CO2 with solid content lower than 50 µg / m3
ACOUSTIC EMISSIONS
65-70 dB at 3 meters away, less than 45 dB at 50 meters away
The new Cleantech® AIT Europa Engineering
Designed for excellent Environmental Solutions
ECO-INNOVATION
Our Cleantech® Technology guarantees mining and metallurgical companies a complete exploitation of the metallic powders, definitively solving the problem of their disposal.
ZERO WASTE
In the case of steel mill EAF dusts, the technology adopted makes it possible to transform it into ferroalloy ingots and zinc oxide, without producing toxic waste. The slag obtained from the smelting process is also an inert material and can be used as a raw material for the production of cements or mineral wool.
CLEAN PROCESS
The Cleantech® system ensures a "clean" process, as all the processed material and every aspect of production do not release any type of polluting waste into the environment. The beating heart of the technology is an electric arc furnace equipped with two technological innovations that allow the direct melting of metal powders: the DIR (Digital Impedance Regulator), which manages and controls the electric power of the furnace, and the TM (Thermodinamic Model) which calculates the recipe of the reagents to be included in the production process.
Technology
The maximum of competence for high melting performances
THE BENEFITS
Cleantech® treats the powders directly thanks to an "open arc" furnace control system, managed by the DIR. During the process, the software automatically calculates the mixture of reagents (lime, silica sand and carbon coke) to be mixed with the metal powders before melting. The mix is introduced into the furnace through a safety slide, positioned between the three vertical electrodes, which fall directly into the "arc-zone". The fusion of the obtained mixture generates gases that are sucked into the off-gas duct and filtered in bag-house filters. Our furnaces operate in "hot-tops" conditions, eliminating the risk of “blow backs”. In addition, the levels of secondary dust formation resulting from our process are lower than expected, due to the “plug-flow” and “cross-flow” furnace charge feeding mode.
Technology
Latest generation technological system
The innovative Cleantech® system is ideal for environmental and sustainable development initiatives. Cleantech® is an efficient and easy-to-apply solution, thanks to its small size. A Cleantech® technology applied to electric voltaic arc furnaces that allows metal powders to be melted directly, without the need for pre-agglomeration, considerably increasing the profitability of the process.
Slag
on the surface
Slag
Granulator
Oxide
Dust Oxides,
MetalFines
3 Electrodes
PLC Regulator
Arc
(AC)
Metal
Ladle
4% MAX
Permissible Humidity
Off Gases
Bag-house Filter
Technology
Technical characteristics of Cleantech® models
Cleantech® 1MVA
Power factor: Better than 0.85
Bowl capacity: 1.5 m3
Bowl size: 1.8 m diameter x 1.5 m deep*
(*Depends on material. These are only typical values)
Bowl tilting: Tilting
Bowl temperature monitoring: 8 channel thermocouple supervision
Electrode size: 3 x 150 mm*
(*Depends on grade of electrode. 305 is the correct size but in electrodes we round to the nearest figure. The 450 is in reality 457.2)
Maximum Electrode current density: 0.32 A/mm2
Electrode clamping: Failsafe hydraulically actuated >50 kN clamping force
POWER INPUT: 1000kVA
VOLTAGE: 690V or 6.6 kV 3 Φ furnace t + 400 V 3 Φ auxilliaries
TYPE: Semi-rigid superstructure
Roof: Fixed, forced water cooled , freeze lined, castable or brick
Total length: 5 m
Total width: 3 m
Total height: 8 m*
(*Crene clearance height, not furnace height)
Flexible cables: 3 x 6 kA forced water cooled annealed copper 8.66 A/mm² . Two per electrode
Main control: PLC Control
Electrode movement: 3xAC motors / vector c. Drives 4 kW or Hydraulic with accumulator
Hydraulic pump: 3.3 kW
The new Cleantech® AIT Europa Engineering
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art. 1, comma 125, della legge
4 agosto 2017 n. 124
TECHNOLOGY
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