Aluminium

Aluminium

ESA is mainly, but not exclusively, active in secondary aluminum, having as its customers Furnace manufacturers and end users of melting and holding furnaces for recovery and refining of scrap and production of aluminum alloys, as well as furnaces for heat treatment and heating of semi-finished products. and finished products.
For melting / holding furnaces we supply a complete range of long flame or flat flame burners, operating with cold air, preheated air, regenerative burners (up to 6 MW) and oxy-fuel burners.
We also develop accessory systems (from simple torches to customized linear burners) to heat the transport equipment, channel, filters, degassing unit.
Our range finally includes high-speed burners, self-recuperative burners and radiant tubes burners used for heating, homogenization, various heat treatments on semi-finished and extruded products.

ROTARY MELTING OVENS
It is now widely recognized that Oxy-Fuel combustion is the optimal technology when aluminum scrap is melted in rotary ovens, due to the high temperatures and the strong radiant component of the flame.
Our solutions include “high turbulence” burners with power up to 20MW, in the single-mouth version for small / medium-sized rotary ovens or in the multi-mouth version, for larger ovens, which provide a more concentrated flame that penetrates quickly into the load, all to the advantage of the melting-rate and the reduction of oxides and waste.

Ooxy-fuel-High Turbulence for-rotary-aluminium-furnace

Ooxy-fuel-High Turbulence for-rotary-aluminium-furnace

Oxy fuel Multihead 20 Mw for rotary melting furnace.

Oxy fuel Multihead 20 Mw for rotary melting furnace.

MELTING FURNACE OVENS
For users of traditional or tilting melting or holding furnaces, there are different solutions to be used depending on the capacity of the basin, the melting rate, the type of scrap worked:

ESA ENM Long Flame burner in Aluminium holding furnaces

ESA ENM Long Flame burner in Aluminium holding furnaces

This is why it makes no sense to provide a generic answer to one of the most frequently asked questions: are oxygen burners or regenerative ones more efficient? The answer, invariably, is: it depends, on a case by case basis, on dozens of factors. We are not manufacturers of ovens or end users, and therefore we leave the choice to the customer, limiting ourselves to offering a wide range of solutions.

ESA-Regenerative-Burner-Low-Nox in reverberatory tilting furnaces

ESA-Regenerative-Burner-Low-Nox in reverberatory tilting furnaces

ESA-Regenerative-Burners-in-tilting-reverberatory Holding-furnaces.

ESA-Regenerative-Burners-in-tilting-reverberatory Holding-furnaces.

For reverberatory holding furnaces, in particular, we offer at least two main oxy fuel solutions:
Our AGO-NxT air and oxygen burner, which has two main advantages:
– a long “diffusive” flame exactly identical to that of the ENM-NxT air burners.
– the possibility of using oxygen during the melting phase and going to air during the maintenance phase, considering that molten aluminum requires much less energy to remain in the liquid phase. In addition to the obvious technical and economic advantage of having a double combustion mode, the possibility of switching to air is highly appreciated in those contexts where there are risks of deficiencies in oxygen supplies.

Air-Oxy-Fuel-ESA-Ago-Nxt-in-reverberatory-furnaces.png

Air-Oxy-Fuel-ESA-Ago-Nxt-in-reverberatory-furnaces.png

The additional possibility is our “Flame Turning FT” burner, thah, installed on the roof of a reverberatory furnace, can direct the flame in order to provide an evenly heated atmoshpere which avoid the formations of  hot spots, as well as, during melting phase, of redirectinbg the flame toward the ingots (or scrap) just loaded into the bath.

ESA Oxy Fuel Flame Turning into reverberatory furnace

ESA Oxy Fuel Flame Turning into reverberatory furnace

For further phases of casting and for transfer, and accessories sistems, we also provide different solutions, really according to the specific requirments and situation.
The burners used are often  our HBT torches or more sophisticated Pyroline linear burners in various customizable configurations..

ESA-Pyroline-in-channel-and-configured-to-preheat-in-line-filters

ESA-Pyroline-in-channel-and-configured-to-preheat-in-line-filters

DOWNSTREAM FURNACES
Finally, for the downsteram process of rehating and treatment furnaces,  ESA boasts all its wide range of  high/medium velocity burners:

  • EMB and EMB SIK for cold air.
  • EMB-SIK-NxT for recuperated air.
  • REKO-SIK-NxT, self recuperative burners LOW NOx.
  • RT-NxT, burners for radiant tubes LOW NOx.

ESA self recuperative burners

ESA self recuperative burners “Reko”in-rehating furnace of alluminium bars

News & Events

2021 PRICE INCREASES

2021 PRICE INCREASESDear Sirs We hereby inform you that the prices reserved for you will undergo variations. The increases in the costs of raw materials, now widespread worldwide, [more]

ESA will be exhibiting at ADIPEC 2021 trade fair

ESA will be exhibiting at ADIPEC 2021 trade fairFrom 15 to 18 November 2021 we will participate in the ADIPEC fair, come and visit us at stand [more]

Hydrogen test on regenerative burners

Hydrogen test on regenerative burnersOne pair of ESA REGE-6-NxT regenerative burners (the most efficient series of High Temperature air/fuel burners) was configured to use H2/NG mixture with a [more]

ESA will be exhibiting at ECOMONDO 2021 trade fair

ESA will be exhibiting at ECOMONDO 2021 trade fairFrom 26 to 29 October 2021 ESA will be present at the ECOMONDO fair at the stand of our SIAD MI Group. Come visit! HALL [more]