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Carbon Baking Furnace

a baking furnace and carbon dioxide technology, applied in furnace components, waste heat treatment, lighting and heating apparatus, etc., can solve the problems of removing the baked anodes and consuming substantial amounts of carbon anodes

Inactive Publication Date: 2015-10-15
LAZAR ANODE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019]The plurality of individual furnace features and method steps described in this disclosure may be combined with one another to form additional unique combinations.

Problems solved by technology

The conversion of alumina to aluminum metal by electrolysis results in the substantial consumption of carbon anodes.
The loading and unloading of the sacrificial medium is an issue desirous of improvement.
Another issue with the vertical-path furnace such as that disclosed in WO 99 / 06779 is the removal of the baked anodes at the bottom of the furnace.
The problem of removing the lowermost baked anode while not upsetting the column is an issue desirous of improvement.
The removal and treatment of pitch fumes or volatiles is an issue desirous of improvement.

Method used

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Examples

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Embodiment Construction

[0055]An exemplary configuration of a vertical-path baking furnace is identified by reference numeral 10 in the following description. FIG. 1 depicts a front view of furnace 10 while FIG. 2 depicts a top view of furnace 10 showing the location of a plurality of carbon body baking paths 12 arranged in a three-by-four array with three baking path rows and four baking path columns. The array of baking paths 12 thus includes a plurality (in this example ten) of perimeter baking paths that are not entirely surrounded by other baking paths and, in this example, a plurality (two) of captured baking paths 12 that are entirely surrounded (when viewed from the top) by other baking paths 12. The array of baking paths includes a front row 14 of baking paths 12, a middle row 16, and a back row 18. In other array configurations, there will be a different number of middle rows 16 to increase the production capacity. In this configuration, the front row is the closest to the unloading direction at ...

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Abstract

A carbon baking furnace has at least one vertical baking shaft with a system and method for positioning green carbon bodies to be baked at the top of the vertical baking path and ringing the green carbon bodies with a sacrificial medium such as packing coke. The disclosure provides a system and method for controlling the delivery and removal of the sacrificial medium used to surround the carbon bodies within the baking paths. A volatile extraction system and method are provided. A system and method for unloading baked carbon bodies is disclosed.

Description

BACKGROUND OF THE DISCLOSURE[0001]1. Technical Field[0002]The present disclosure generally relates to carbon baking furnaces and, more particularly, to carbon baking furnaces having vertically-disposed baking paths. In one configuration, the invention relates to a furnace having at least one, but typically an array of vertically-disposed baking paths used to bake a carbon body that travels down through the baking paths while packed in a sacrificial medium.[0003]2. Background Information[0004]Various operations require green carbon to be baked prior to use. Some of these operations use granulated green carbon while others use blocks of green carbon. One such baking operation is the manufacture of anodes that are later used to make aluminum. The conversion of alumina to aluminum metal by electrolysis results in the substantial consumption of carbon anodes. Molten aluminum is deposited onto a carbon cathode and simultaneously oxygen is deposited on and consumes the carbon anode of the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F27D17/00F27B9/34F27B1/00F27B9/14F27B9/38F27B9/39
CPCF27D17/002F27B9/38F27B9/34F27B1/005F27B9/142F27B9/39F27D17/004F27D17/008F27D3/0033
Inventor LAZAROU, RICK KIRIAKOS
Owner LAZAR ANODE TECH