Air leakage rate measuring method of sintering machine system

Abstract

The invention relates to a method for measuring system air leakage rate of a sintering machine in metallurgy. The invention discloses a method for measuring the system air leakage rate of the sintering machine. The method comprises the following steps: firstly, by measuring charge level air speeds at different parts of a machine pallet of the sintering machine, the effective air quantity(Q[inlet]) entering a sinter layer is worked out, by measuring the air speed in a main duct in front of an electrostatic dust collector, the total air quality(Q[total]) pumped in the main duct by an air exhauster is worked out, and by the water content in mixing material, the content of the air converted into vapor is worked out; secondly, the air qualities(Q[total standard], Q[inlet standard] and Q[water standard]) at the standard state are converted all together; and finally, the air leakage rate(B) is worked out according to the formula. The measuring method has strong operability and can overcome the defects of inconvenient measurement, big measurement error and complex air analysis existing in daily production and the defect existing in prior art that the local air leakage rate can only be measured by the air leakage point air speed measuring method. In a word, the method has the advantages of easy operation, accurate measurement and good use effect.

Description

technical field [0001] The invention relates to a measuring method, which is applied to measuring the air leakage rate of a sintering machine system used in the metallurgical industry. Background technique [0002] The air leakage rate of sintering machine is an important factor affecting the output index of sintering ore. The higher the air leakage rate of the sintering machine is, the less effective sintering air will be, and the sintering productivity will decrease. It can be seen that the air leakage rate of the sintering machine is a key indicator to guide the sintering production, so the measurement of the air leakage rate is particularly important. There are several methods for measuring the air leakage rate at present: [0003] Method 1: Empirical formula estimation method [0004] The formula used in this method is: Q leak = k(L+B)p0.42 [0005] In the formula: Q leakage—air leakage rate, m3 / h; [0006] L, B - the width and length of the sintering machine, m; ...

AI Technical Summary

Problems solved by technology

[0020] In order to solve the problem of poor operability and inconvenient measurement in the existing technology, which affects sintering production, large measurement error, large amount of gas analysis and some methods can only To solve the problem of measuring the local air leakage rate, the present invention provides a method for measuring the air leakage rate of the sintering machine system, which can better solve the above problems

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