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Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof

A sintering method, sintering machine technology, applied in the direction of charge processing type, lighting and heating equipment, furnace components, etc., can solve the problems of large flue gas treatment volume, high cost, and reduce the amount of CO generated in the sintering process, so as to reduce emissions , Guarantee the sintering effect and reduce the effect of the injection interval

Active Publication Date: 2021-08-13
ZHONGYE-CHANGTIAN INT ENG CO LTD
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Problems solved by technology

The sintering method and sintering machine aim at the problems of large amount of flue gas treatment and high cost in the removal of CO from the existing sintering flue gas end. By spraying oxygen-enriched air to diff

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  • Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof
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  • Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof

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Embodiment Construction

[0074] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0075] In this article, terms such as "upper, lower, left, and right" are established based on the positional relationship shown in the drawings. Depending on the drawings, the corresponding positional relationship may also change accordingly. For the part of the definition, the direction of the literal definition is preferred, so it cannot be understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to connect a Another component having the same name does not necessarily require or imply any such actual relationship or order between these components.

[0076] Aiming at the problems of large amount of flue gas treatment and high cost in the removal of CO from...

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Abstract

The invention discloses an oxygen-enriched low-CO sintering method, an oxygen-enriched low-CO sintering machine and a control method thereof. The oxygen-enriched low-CO sintering machine comprises a track, a trolley, a material distributor and air bellows, and further comprises CO concentration detection devices, oxygen-enriched air spraying devices and a control device, wherein the CO concentration detection devices are arranged in the air bellows or branch flues; the oxygen-enriched air spraying devices are located above a sintering material surface of the trolley and are configured to be capable of moving forwards and backwards and adjusting the length of an oxygen-enriched blowing interval so as to blow oxygen to the sintering material surface located in the oxygen-enriched blowing interval; and the control device is used for controlling the blowing amount of the oxygen-enriched air spraying devices and the position and length of the oxygen-enriched blowing interval. According to the sintering method and the sintering machine, aiming at the problems of large flue gas treatment amount and high cost existing in the existing sintering flue gas tail end CO removal, oxygen-enriched air is sprayed to different areas of the sintering material surface, so that sufficient combustion of fuel is promoted, then the generation amount of CO in the sintering process is reduced, and treatment of CO pollutants in the sintering flue gas is realized.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to an oxygen-enriched and low-CO sintering machine. The present invention also relates to a method for controlling the oxygen-enriched and low-CO sintering machine. Background technique [0002] The sintering process is a key link in the ironmaking process. Its principle is to mix various powdery iron-containing raw materials with an appropriate amount of fuel and flux, add an appropriate amount of water, mix and pelletize the material on the sintering equipment to make the material A series of physical and chemical changes, sintered into blocks, which are sent to the blast furnace for the next step. [0003] Such as figure 1 As shown, the head of the sintering machine 1 is provided with a distributing machine 2, and an ignition furnace 3 is installed at the rear of the distributing machine 2. Several sintering machine trolleys 4 are connected end to end and insta...

Claims

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Application Information

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IPC IPC(8): F27B9/40F27B9/30F27B9/16F27D7/02C22B1/16
CPCF27B9/40F27B9/3005F27B9/16F27D7/02C22B1/16F27M2003/04Y02P10/20
Inventor 廖继勇魏进超周浩宇刘前
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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