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Automatic smoke mixing device for multiple sintering machines

A mixing device and flue gas mixing technology, which is applied to the types of furnaces, waste heat treatment, furnaces, etc., can solve problems such as instability, dust carrying in the flue gas, and high moisture content, and achieve low resistance of the device, significant energy saving, and smooth operation reliable effect

Inactive Publication Date: 2015-01-21
NINGBO IRON & STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) Large and unstable moisture content
5) Flue gas carries a lot of dust
Two sintering machines require an investment of nearly 200 million yuan
[0007] "Flue gas mixing device" (public number CN103240014A), which is mainly used in the production of steelmaking electric furnaces, is a flue gas mixing device for mixing and cooling high-temperature flue gas in the furnace and normal-temperature flue gas on the roof cover. cylinder, mixing cylinder and mixing inner cylinder, and the lower part of the air outlet section of the mixing cylinder is equipped with an ash hopper, etc., which cannot automatically adjust various flue gases

Method used

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  • Automatic smoke mixing device for multiple sintering machines

Examples

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Embodiment Construction

[0021] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0022] Embodiments of the present invention relate to an automatic flue gas mixing device for multiple sintering machines, such as figure 1 As shown, it includes two flue gas pipes 1, one end of each flue gas pipe 1 is provided with two air inlet pipe branches 2, and the other end is connected with the flue gas mixing pipe 3; the two air inlet pipe branches 2 There is an air inlet 4 on each of them, and the two air inlets 4 ar...

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Abstract

The invention relates to an automatic smoke mixing device for multiple sintering machines. The automatic smoke mixing device comprises a plurality of smoke pipelines, two air inlet branch pipelines are arranged at one end of each smoke pipeline, and the other end of each smoke pipeline is connected with a smoke mixing pipeline. The two air inlet branch pipelines are each provided with an air inlet, the two air inlets are connected with two main sintering exhaust fans in a sintering machine set respectively, a booster fan is further arranged on each smoke pipeline, the booster fans are used for adjusting the pressure and the flow of smoke so that the pressure and the flow of the smoke of all the smoke pipelines are at the similar level when the smoke enters the smoke mixing pipeline. The automatic smoke mixing device can automatically mix various types of smoke.

Description

technical field [0001] The invention relates to the technical field of sintering flue gas mixing, in particular to an automatic flue gas mixing device for multiple sintering machines. Background technique [0002] Sintering flue gas is a gas containing a variety of polluting components produced during the process of igniting and melting various powdered iron-containing raw materials, fuels and fluxes placed on the sintering trolley, and high-temperature sintering. The inherent complexity and particularity of sintering flue gas, compared with other dust-containing gases, sintering flue gas has obvious differences: 1) The amount of flue gas is large and the change is large. The sintering process works in a completely open and oxygen-enriched environment. Due to the high air leakage rate (30% to 50%) and high solid material circulation rate, a considerable part of the air does not pass through the sintering material layer, which greatly increases the amount of sintering smoke. ...

Claims

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Application Information

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IPC IPC(8): F27B21/08F27D17/00
Inventor 李正福陈君明金春吕克洪杨红芸
Owner NINGBO IRON & STEEL
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