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Air leakage rate measuring method of sintering machine system

A technology of a sintering machine system, measuring method, applied in the direction of mass flow measurement device, furnace type, furnace, etc.

Inactive Publication Date: 2010-06-30
武钢集团有限公司
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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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  • Air leakage rate measuring method of sintering machine system
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  • Air leakage rate measuring method of sintering machine system

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Embodiment Construction

[0071] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0072] The wind in the sintering process is drawn into the sintering material layer by the exhaust fan. The sintering process is to use the oxygen in the air to burn with the carbon in the mixture to generate heat to cause physical and chemical reactions inside the sintered material, so that the mixture is sintered into blocks. The total air volume Q in the large flue under working conditions 总 It consists of three parts: one is the effective air intake Q of the sintered material surface under working conditions 进 ; The second is the harmful air leakage Q of the sintering system 漏 ; The third is the additional amount of gas Q added by physical and chemical reactions during the sintering process 额 . The additional amount of gas is the difference between the amount of water vapor in the mixture that changes from liquid to gas and the amount of gas produced by t...

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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; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B21/14G01F1/86
Inventor 李军王素平胡平冯红云肖扬肖竟霞
Owner 武钢集团有限公司
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