Calculation method for air inlets
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For a coke oven, once parameters such as the type of gas used and the standard temperature (turnover time) are determined, how is the opening degree of the air inlet determined? Who has the specific calculation steps and methods? Please share them. For example, for a tamping coke oven with a length of 6.25 meters and a cycle time of 30 hours, how is the opening degree of the air vents calculated?
Calculating the air opening requires coke oven operating parameters, fuel properties, and design specifications. Here are the basic calculation steps: 1. Determine the amount of air required for gas combustion. This involves the analysis of gas composition and the calculation of the theoretical air requirement. 2. Determine the actual air demand. The actual air demand equals the theoretical air demand multiplied by the air excess factor (usually 1.1 to 1.2). 3. Calculate the air flow rate based on the furnace size, design wind pressure, and combustion speed, etc. 4. Adjust the air flow rate by considering parameters that affect combustion, such as turnover time and temperature. 5. Determine the opening degree based on the air flow rate and the design of the coke oven tuyeres. For a 6.25-meter ramming coke oven with a turnover time of 30 hours, the specific opening degree requires precise calculations based on data such as the composition of the gas, wind pressure, and tuyere dimensions. This is usually adjusted by coking engineers or operators based on experience and coke oven operation guidelines. Without these specific data and standards, it is difficult to provide exact calculation steps and results. .