Burner of reverberatory furnace

Abstract

A burner of a reverberatory furnace comprises a natural gas main pipe. The front end of the natural gas main pipe is connected with a spray head with a throat. The spray head with the throat comprises a spray head body and the throat. The pray head body is a hollow diffusion-type semi-closed structure with the sectional area of the end face A larger than the sectional area of the end face B, the end face A is fully open, a connecting port connected with the front end of the natural gas main pipe is formed in the end face B, the cross section of the throat is rectangular, and the throat is fixedly connected with the end face A of the spray head body. The spray head with the throat is located in an oxygen distribution chamber, the oxygen distribution chamber is a closed cavity connected with a combustion chamber, a partition plate is arranged between the oxygen distribution chamber and the combustion chamber, oxygen spray holes are distributed in the surface of the partition plate, an installing hole matched with the spray head with the throat is formed in the partition plate, the upper edge of an outlet of the spray head with the throat is fixedly connected with the upper edge of the installing hole in a sealed mode, and gap is reserved between the lower edge and the two side edges of the outlet and the partition plate. The burner is wide in flame coverage, high in fuel utilization rate and little in damage to a vault of the combustion chamber.

Description

Technical field [0001] The invention relates to the technical field of combustion devices, in particular to a reverberatory furnace burner. Background technique [0002] As my country's requirements for energy conservation and environmental protection are getting higher and higher, natural gas pure oxy-combustion technology has been applied and promoted in reverberatory furnace smelting of waste lead-acid batteries, lead dross, and tin furnace slag. The reverberatory furnaces used for smelting the above-mentioned miscellaneous materials have one thing in common. The furnace chamber is relatively low and the horizontal section of the furnace chamber is a rectangle with a certain aspect ratio. During smelting, the flame should be as wide as possible, the smelting temperature should be uniform, and the damage to the furnace vault should be as small as possible. [0003] The traditional reverberatory furnace natural gas pure oxygen combustion burner consists of two concentric circular...

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Problems solved by technology

[0003] The natural gas pure oxygen combustion burner of the traditional reverberatory furnace consists of two concentric circular tubes, the inner tube passes through natural gas, and the outer tube passes through oxygen. The temperature in the furnace is uneven; moreover, the high temperature points of the flame are distributed around and not completely concentrated on the charge, resulting in a low utilization rate of some fuels; during smelting, the temperature in the furnace is generally above 1200 degrees Celsius, and the flame temperature High, because the high temperature points are distributed around, some high temperature points are bound to be distributed in the furnace vault area, which will affect the service life of the furnace vault

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