A Method for Determining the Air-Oil Ratio of the Drying Tube Burner of Asphalt Mixing Equipment

Abstract

A method for determining the air-oil ratio of the burner in the drying drum of the asphalt mixture mixing equipment. Air extraction sampling is carried out in the flue of the drying drum burner, and the air-oil ratio of the burner is adjusted by mechanical or frequency conversion control technology, and the flue gas analysis is adopted. The instrument collects data to obtain the thermal efficiency under different excess air coefficients; taking the excess air coefficient as the independent variable and the thermal efficiency as the dependent variable, a relationship curve between the two is fitted, and the best wind oil is determined from the relationship curve Compare. The invention determines the optimum air-oil ratio of the burner of the drying cylinder of the asphalt mixture mixing equipment, so that the fuel can be fully burned in the production process of the equipment, reducing carbon emissions, protecting the environment and reducing production costs.

Description

technical field [0001] The invention belongs to the technical field of road asphalt mixture preparation, and in particular relates to a method for determining the air-oil ratio of a burner of a drying cylinder of an asphalt mixture stirring equipment. Background technique [0002] In recent years, asphalt pavement has become the main form of expressway and first-class road pavement because of its many advantages. The key equipment for producing hot mix asphalt mixture is asphalt mixture mixing equipment. For asphalt mixing equipment, the most important energy consumption and exhaust emissions occur in the drying and heating process of aggregates. Therefore, the drying heating performance and energy saving and emission reduction of drying drum burners have become the focus of attention. When the structure and operating parameters of asphalt mixing equipment are unreasonable, the thermal efficiency is low, which will cause a lot of energy waste. The asphalt mixing equipment ...

AI Technical Summary

Problems solved by technology

When the structure and operating parameters of asphalt mixing equipment are unreasonable, the thermal efficiency is low, which will cause a lot of energy waste

The asphalt mixing equipment drying drum burner used in engineering construction mostly operates according to the air-oil ratio set by the factory. The factory parameter is set to use standard grade diesel oil. When the type and grade of fuel actually used are inconsistent with it, the factory setting It is difficult to ensure that the equipment operates at high thermal efficiency due to the air-to-oil ratio parameter

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