Accelerated flash furnace ignition device of ore concentrate

An ignition device and flash furnace technology, applied in furnaces, furnace components, lighting and heating equipment, etc., can solve the problems of accelerated concentrate ignition, short flame, no penetrating power, etc., to achieve accelerated collision and settlement, and long flame. , Improve the effect of flow field

Active Publication Date: 2014-11-26
铜陵有色金属集团股份有限公司
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  • Application Information

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Problems solved by technology

However, for a concentrate nozzle with a dispersing cone, there is no or very little concentrate within a certain height directly below the dispersing cone, and the low-speed natural gas gun used has a short flame and no penetrating power, so it is difficult to accelerate the ignition of the concentrate the role of

Method used

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  • Accelerated flash furnace ignition device of ore concentrate

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Embodiment Construction

[0010] Such as figure 1 As shown, on the top of the reaction tower 4 of the copper flash smelting furnace, several cluster jet oxygen and natural gas guns 1 are symmetrically distributed around the concentrate nozzle 2, and the cluster jet oxygen and natural gas guns 1 are all installed around the concentrate nozzle at a certain inclination angle. Of course, the cluster jet oxygen and natural gas gun 1 here can also be installed vertically to the top of the flash furnace reaction tower, and the cluster jet oxygen and natural gas gun 1 can be selected from the Praxair cluster jet oxygen and natural gas gun (U.S. Patent, No. 5814125); In addition, in the center of the concentrate nozzle, a central cluster jet oxygen gas lance 3 is used to replace the original natural gas burner, and the installation position of the central cluster jet oxygen gas gun 3 is the same as that of the natural gas burner. In this way, the copper concentrate at normal temperature is ejected from the conc...

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Abstract

The invention provides an accelerated flash furnace ignition device of ore concentrate to overcome the inadequate contact between the ore concentrate and oxygen-enriched air. The accelerated flash furnace ignition device of the ore concentrate is characterized in that symmetrically a plurality of bundling jet oxygen gas guns are distributed on the periphery of an ore concentrate nozzle on the top of a flash smelting furnace reaction tower, and the bundling jet oxygen gas guns are installed on the periphery of the ore concentrate nozzle at a certain inclination angle; a central bundling jet oxygen gas gun replaces a gas burner which is arranged in the central of the ore concentrate nozzle, the installation location of the central bundling jet oxygen gas gun is same to that of the gas burner. The installation of the inner bundling jet oxygen gas guns and the outer bundling jet oxygen gas guns promote the oxygen-enriched air extruded by the ore concentrate nozzle and the dry ore concentrate to mix with each other and carry out heating and lighting to accelerate the ignition reaction.

Description

technical field [0001] The invention relates to a flash smelting furnace, in particular to a device for accelerating the ignition of flash furnace concentrate. Background technique [0002] Flash smelting is to spray dry copper concentrate or nickel concentrate into the high-temperature space of the reaction tower through the concentrate nozzle with oxygen-enriched air, and complete heating, ignition, high-temperature chemical reaction, For metallurgical processes such as collision and polymerization, the completeness of the metallurgical process and the technical indicators of the process depend on the uniformity of mixing of the concentrate and oxygen-enriched air, the heating speed of the concentrate, and the time of ignition. With the increase of flash furnace concentrate processing capacity, the mixing of concentrate and oxygen-enriched air is more difficult, and the uneven distribution of concentrate and oxygen causes uneven chemical reactions; the thickness of the con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D3/16
Inventor 周俊陈卓
Owner 铜陵有色金属集团股份有限公司
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