Method for measuring gas leakage rate of sintering machine system

A technology of sintering machine system and air leakage rate, which is used in measuring devices, measuring flow/mass flow, liquid/fluid solid measurement, etc., can solve the problems of inaccurate measurement, poor operability, large error, etc. Effect

Active Publication Date: 2014-09-10
LAIWU IRON & STEEL GRP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring the air leakage rate of the sintering

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  • Method for measuring gas leakage rate of sintering machine system
  • Method for measuring gas leakage rate of sintering machine system
  • Method for measuring gas leakage rate of sintering machine system

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but is not limited thereto.

[0032] Such as figure 1 As shown, in the present invention, the sintering machine system includes a sintering machine trolley side plate 1 , a sintering material layer 2 , a wind box 3 and a flue gas duct 4 .

[0033] Firstly, the height of the side plate 1 of the sintering machine trolley upwards is greater than 1 / 2 of the height of the sintering material layer 2, and the thickness of the sintering material layer 2 remains unchanged, so that a material-free space is formed above the sintering material layer 2, and the height of the material-free space is If it is greater than 1 / 2 of the height of the sintering material layer, take measurements at three points along the two edges and the middle of the height on the side plate 1 of the sintering trolley above the sintering material layer 2, and calculate the average value, whi...

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Abstract

The invention discloses a method for the measuring gas leakage rate of a sintering machine system. The method is on the basis that N2 is not involved in the reaction in the sintering process and adopts N2 balance for gas leakage measurement. The method includes the steps of 1, extending the side plate of a sintering machine trolley upwardly, and guaranteeing a no-material space between the sintering material surface and the upper edge of the side plate of the sintering machine trolley; 2, measuring gas incoming speed of the sintering material layer on the sintering material, and measuring the flue gas velocity, the flue gas temperature, the flue gas pipeline nitrogen concentration and the flue gas pressure; 3, calculating the gas leakage rate according to the measured data by the formulas (img file = 'DDA0000523955380000011.TIF' wi = '75' he = '38' /) (img file = 'DDA0000523955380000012.TIF' wi = '752' he = '' / 136). The method has the advantages that the gas leakage rate of the sintering machine system can be measured simply and accurately, and disadvantages that an existing measuring technology is inconvenient to operate, errors are large, and only partial gas leakage rate can be measured by a gas leakage spot gas velocity measuring method are solved.

Description

technical field [0001] The invention belongs to the technical field of sintering, in particular, the invention relates to a method for measuring the air leakage rate of a sintering machine system. Background technique [0002] Sintering air leakage is the most important factor affecting the current sintering energy consumption and sintering output. The higher the sintering air leakage rate, the less effective sintering air and the increase of sintering power consumption. The sintering system mainly leaks air from the sintering machine head, tail cover plate, bellows interface, trolley joints, etc., resulting in a decrease in the effective air volume passing through the sintering material layer, resulting in waste of power consumption and increased sintering costs. At present, some production sites use empirical formulas and oxygen balance or CO to measure the air leakage rate of the sintering system. 2 Balanced methods, none of these methods can accurately measure the air l...

Claims

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Application Information

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IPC IPC(8): G01F1/00
Inventor 梁栋周小辉王学斌石红燕张英安进博
Owner LAIWU IRON & STEEL GRP
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