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Burner for uniformly heating a long furnace

A burner and combustion space technology, applied in burners, gas fuel burners, combustion methods, etc., can solve the problem of not ensuring uniform heating of new long furnaces, and achieve the effect of long flame length

Inactive Publication Date: 2014-04-30
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Other specific burners are described in EP0038257A1 and EP0663562A2, but these also do not ensure uniform heating of the new long furnaces

Method used

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  • Burner for uniformly heating a long furnace
  • Burner for uniformly heating a long furnace
  • Burner for uniformly heating a long furnace

Examples

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Embodiment Construction

[0041] figure 1 In , the burner 1 is schematically shown in side view. The first central feeding part 2 is arranged between a plurality of second feeding parts 3, and only two second feeding parts are shown for simplicity. The second feed 3 ends in the auxiliary outlet 6 . The second feed 3 is surrounded by a plurality of third feeds 4 , which terminate in a surrounding jet outlet 7 which in turn surrounds the auxiliary outlet 6 . In this embodiment showing the burner 1 , the first feed 2 , the second feed 3 and the third feed 4 are each connected to a schematically shown separate valve 30 . Other embodiments are described further below.

[0042] figure 2 Shown schematically is a front view of a burner 1 according to the invention, said burner being suitable for operation with the method according to the invention, the individual outlets being shaped as circular rings. Shown in the center of the burner 1 according to the invention is the main outlet 5 for the oxidant, es...

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PUM

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Abstract

The present invention relates to a burner (1) for a furnace (19) with the following features: a first feed (2) for at least one fuel (31), preferably with a primary outlet (5) for an oxidizing agent (32), preferably oxygen; a second feed (3), surrounding the first feed (2), with at least one secondary outlet (6) for the oxidizing agent (32); a third feed (4), surrounding the second feed (3), with at least one enveloping jet outlet (7) for the oxidizing agent (32), wherein the second feed (3) and the third feed (4) are designed such that a first velocity (v1) with which the oxidizing agent (32) emerges from the at least one secondary outlet (6) is greater than a second velocity (v2) with which the oxidizing agent (32) emerges from the at least one enveloping jet outlet (7). The second feed (3) thereby preferably enables a first volumetric flow (8) of the oxidizing agent (32) that is greater than or equal to a second volumetric flow (9) of the oxidizing agent (32) through the third feed (4). By surrounding the oxidizing agent (32) that is fed into a combustion space (35) with an enveloping jet (16) likewise of oxidizing agent (32), a greater flame length and more uniform heating of a furnace (19) are made possible, which is useful in particular when melting metals in elongated furnaces.

Description

technical field [0001] The invention relates to a burner, in particular a burner with a long flame, for the uniform heating of a long furnace. The invention also relates to a method for uniformly heating a long furnace. Such burners and corresponding methods are preferably used for melting metals, especially non-ferrous metals. Background technique [0002] For example, DE2004037620B4 discloses a burner with a flame of variable length, which burner operates with gaseous fuel and oxygen and whose flame length can be set. According to the prior art, furnaces for melting metals are preferably operated with burners located at one end. This burner is usually installed at the entrance door of the oven or in the entrance area of ​​the oven, ie in the area of ​​the lid. This controls technical complexity and costs, especially compared to using multiple burners. In order to heat more charge, longer and longer furnaces are being used. This has the disadvantage that lower temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/32F23D14/22
CPCY02E20/344F23D14/32F23D2900/00006F23C2900/06043F23D14/22Y02E20/34
Inventor D·维克C·温德霍维尔
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE