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Circumferential injection burner

A burner and spray gun technology, applied in the direction of burner, combustion method, combustion type, etc., can solve the problems of heavy maintenance requirements, variable production capacity, high operating costs, etc.

Inactive Publication Date: 2016-07-20
HATCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn leads to varying production capacities, operational difficulties and onerous maintenance requirements, with the end result being higher operating costs and reduced output

Method used

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  • Circumferential injection burner
  • Circumferential injection burner
  • Circumferential injection burner

Examples

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Embodiment Construction

[0033] In the description below, specific details are set forth to provide examples of claimed subject matter. However, the embodiments described below are not intended to define or limit the claimed subject matter. It will be apparent to those skilled in the art that many variations in specific embodiments may be made within the scope of the claimed subject matter.

[0034] Such as figure 1 with figure 2 As shown, the burner 11 is positioned above the reaction shaft 10 of the flash smelting furnace. The base of the burner 11 comprises a cooling block 12 integrated into the roof of the reaction shaft 10 of the furnace and a nozzle 13 extending through the cooling block 12 . The gas supply channel 14 is installed above the nozzle 13, and is supplied with a reaction gas. Inside the gas supply channel 14 is an adjustable diffuser 28 which protrudes downwards into the burner 11 . An adjustable disperser 28 extends through the burners 11 and nozzles 13 into the reaction shaft...

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Abstract

A burner for delivering pulverous feed material and reaction gas to a reaction vessel comprises an outer, elongate tubular member having a peripheral wall. An upper end of the outer tubular member defines a gas supply channel for receiving the reaction gas; a lower end defines a mixing chamber for the reaction gas and the feed material; and an intermediate portion located between the upper and lower ends may have at least one aperture through its outer peripheral wall for receiving the feed material. The burner may comprise an adjustable disperser located inside the outer tubular member and extending from the upper end to the lower end of the outer tubular member. An inner tubular member may be located inside the outer tubular member to define an outer annular passageway, and a valve may be provided for controlling an area of an annular opening of the outer passageway.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 61 / 910,214, filed November 29, 2013, the contents of which are incorporated herein by reference. technical field [0003] The subject of the invention relates to a burner for pulverulent feed, such as for flash smelting sulphide concentrates. Background technique [0004] Flash smelting is a pyrometallurgical process in which finely ground feed materials are combusted together with reactant gases. Flash smelting furnaces typically include an elevated reaction shaft with burners positioned on top of the elevated reaction shaft in which pulverized feed (also referred to herein as particulate feed) is brought together with reactant gases. In the case of copper smelting, the feed is usually a concentrate, which contains copper and iron sulphide minerals. The concentrate is usually mixed with silica flux and combusted with preheated or oxygen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/04B01J6/00B01J8/00C22B9/05
CPCF23D1/00F23D91/02F27D99/0033F27D2003/185
Inventor M·U·亚斯塔泽斯基A·柯克林J·A·F·肖M·J·M·马克莱奥特I·马林西克
Owner HATCH LTD