Method for measuring gas leakage rate of sintering machine system

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...

AI Technical Summary

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 machine system, which solves the problems of inaccurate measurement, large error and poor operability in the prior art

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