Furnaces for melting aluminum: classification

Below is the classification of furnaces for melting aluminum from the viewpoint of their construction. On the image – review smelters, which are used in the aluminum industry.

Classification for aluminum smelters

klassifikaciya-pechi-plavilnye-alyuminiyFigure - Classification for aluminum smelters

  • 1.00 - reverberatory furnace, stationary
  • 1.11 - furnace with a charge load from above
  • 1.12 - round stove
  • 1.13 - furnace with charging the well
  • 1.14 - two-chamber furnace
  • 1.15 - oven dry hearth
  • 1.16 - furnace melting speed
  • 1.17 - shaft furnace
  • 1.21 - reverberatory furnace, tiltable
  • 1.22 - tiltable cylindrical furnace
  • 1.23 - tiltable oval oven
  • 2.00 - crucible furnace
  • 2.11 - gas crucible furnace
  • 2.12 - an electric resistance crucible furnace
  • 2.21 - coreless induction furnace
  • 2.22 - channel induction furnace
  • 3.00 - rotary kiln
  • 3.10 - tiltable rotary kiln

Three classes for aluminum smelters

Чаще всего в производстве вторичного алюминия применяют так называемые отражательные (подовые) печи. Этот тип печей для плавки алюминия (1.00) имеет много модификаций. All of these modifications, anyway, fit classic reverberatory furnace under the special conditions of work and a special charge.

Популярными являются тигельные печи (2.00), special, on small productions.

Производители вторичного алюминия широко применяют в качестве плавильных печей роторные печи (3.00), especially for the processing of scrap having a high specific surface, for example, aluminum shavings, as well as highly contaminated aluminum scrap.

Family tree smelters, is shown, It refers specifically to the production of secondary aluminum. Some aluminum melting technology are very limited and special application.

Moreover, manufacturers of secondary equipment used different equipment depending on the destination of the products and the type of aluminum scrap, they apply.

Furnaces for secondary aluminum casting

Secondary aluminum producers are usually divided into two categories. The first category includes the production of, which mainly produces casting alloys for manufacturers of aluminum castings, and aluminum for steel deoxidation. The raw material for these manufacturers is the "old" scrap and production of foundry waste. In English they are called «refiners». These production introducing alloying elements except for finishing a predetermined alloy used equipment for cleaning the aluminum melt and the removal of unwanted chemical elements and impurities.

Rotary furnaces are used these processors of aluminum scrap.

foundries, aluminum castings are produced from a secondary aluminum casting, widely used crucible furnaces - gas and electric, Induction and Resistance, for melting and holding of aluminum, and for pouring molten aluminum into molds.

Furnaces for the deformable secondary aluminum

The second category includes producers of secondary aluminum production for wrought aluminum alloys. They are used as the charge is clean and sorted scrap wrought aluminum alloys. Продукция этих производителей вторичного алюминия – слябы и слитки для прокатки и экструзии (прессования). They are in English called «remelters». These include the production and, which are divisions of plants for rolling and pressing of aluminum products and which are processed into mostly own technological waste.

Эти плавильщики-литейщики алюминиевого лома применяют в основном отражательные (подовые) печи – стационарные и наклоняемые. Различные конструкции этих печей отвечают требованиям конкретных производств: по энергетической эффективности, purity metal, performance, etc.. d.

The table provides an overview of the application of different types of furnaces in the aluminum industry. Indices types of furnaces - furnaces on the classification scheme in Figure.

Таблица – Применение печей (плавильных, for aging, раздаточных) в алюминиевой промышленностиprimenenie-pechey-dlya-alyuminiya

 

Обозначения: 0 - Not applicable, 1 - used in some cases,, 2 – often used, 3 - standard technology, 4 - Key Technology

Source: Ch. Schmitz, Handbook of Aluminium Recycling, Vulkan-Verlag GmbH, 2006.

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