Boiler fuel nozzle

A burner and boiler technology, which is applied to burners, lighting and heating equipment, etc., can solve the problem that the safety and stability of the power supply system of the air supply system and the heating system cannot be guaranteed, and the gas boiler cannot meet the steam demand and cannot be fully digested. Blast furnace gas and other problems, to achieve the effect of flexible and convenient fuel switching, simple structure, and reduction of SO2 emissions

Inactive Publication Date: 2012-08-15
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

[0003] It cannot completely digest the blast furnace gas produced by the blast furnace, resulting in an increase in the rate of release of blast furnace gas. During the shutdown pe

Method used

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  • Boiler fuel nozzle
  • Boiler fuel nozzle
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Example Embodiment

[0010] Examples: figure 2 As shown, the present embodiment includes a casing 15, which is provided with two pulverized coal mixing ports 10, 12, a secondary tuyere 9, and a tertiary tuyere 8. It is characterized in that the casing 15 is also provided with 6 coke ovens The gas pipe 14 and several blast furnace gas pipes 13 are arranged in the middle of the several blast furnace gas pipes 13, and the material of the coke oven gas pipe and the blast furnace gas pipe is 1Cr18Ni9Ti.

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Abstract

The invention discloses a boiler fuel nozzle which belongs to boiler ancillary facilities and is mainly used for mother pipe boilers in iron and steel enterprises. The boil fuel nozzle comprises a shell; and the shell is provided with two coal powder mixing ports, a secondary air port, and a tertiary air port. The boiler fuel nozzle is characterized in that the shell also comprises six coke oven gas pipes and a plurality of blast furnace gas pipes, wherein the coke oven gas pipes are arranged among the blast furnace gas pipes, and the coke oven gas pipes and the blast furnace gas pipes are all made of 1Cr18Ni9Ti. The boiler fuel nozzle is simple is structure, stable in burning, and energy-efficient and environment-friendly. By using the boiler fuel nozzle, for every year, blast furnace gas can be used by 1,400,000GJ, standard cola can be saved by 48,000t, dust is reduced by 16,000t, and discharged SO2 is reduced by 1,600t. Fuel switching is flexible and convenient, i.e. the switching between gas and coal powder takes about one hour.

Description

technical field [0001] The invention belongs to boiler supporting facilities, and is mainly used for boilers in iron and steel enterprises, in particular to a dual-fuel burner. Background technique [0002] figure 1 It is a structural diagram of an existing boiler burner. [0003] It cannot completely digest the blast furnace gas produced by the blast furnace, resulting in an increase in the rate of release of blast furnace gas. During the shutdown period of the blast furnace, the amount of gas is insufficient, and the gas boiler in the power plant cannot meet the steam demand. The safety and stability of the electrical system. Contents of the invention [0004] In order to reduce the emission of blast furnace gas, the invention provides a boiler burner. [0005] The technical solution of the present invention is: the present invention includes a shell, which is provided with two pulverized coal mixing ports, a secondary air port, and a tertiary air port, and is charact...

Claims

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Application Information

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IPC IPC(8): F23D17/00
Inventor 梁宏军韩森李积善郭灵纯门庄重韩文斌闫立刚
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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