Flat flame burner

Abstract

The invention discloses a flat flame burner. The flat flame burner comprises an air inlet pipe 1, an gas inlet pipe 3, a swirler 2, a burner shell 7, burner bricks 8, a variable cross section device 5and a variable cross section control rod 6, wherein the burner blocks 8 form a combustion channel 16 with a gradually-wide structure and communicates with the burner shell 7, the air inlet pipe 1 isvertically arranged on the burner shell 7, the gas inlet pipe 3 is a variable-cross-section pipe and sequentially passes through the burner shell 7 and the swirler 2 and extends into the combustion channel 16, the variable cross section device 5 is arranged at the bottom of the gas inlet pipe 3, the largest cross section of the variable cross section device 5 is equal to the cross section of the bottom of the gas inlet pipe 3, the gas inlet pipe 3 is arranged axial with the burner shell 7, the swirler 2, the variable-cross-section device 5 and the combustion channel 16, one end of the variable-section control rod 6 is connected with a blade driving ring 4 through a connecting rod, and the other end of the variable-section control rod 6 is arranged at the inlet of the gas inlet pipe 3, so that the variable-section control rod 6 is used for controlling the cross section area of the variable cross section device 5 to change the outlet of the bottom of the gas inlet pipe 3.

Description

technical field [0001] The invention belongs to the technical field of furnaces and kilns, in particular to a flat flame burner. Background technique [0002] The burner is the key equipment of the kiln, and its performance decisively affects the technical and economic indicators such as the output, quality, energy consumption, and environmental protection of the kiln. In new furnaces and kilns, the application of new high-efficiency burners and the improvement of the technical level of existing burners are of great significance for improving product quality, reducing energy consumption and protecting the environment. The flat-flame burner is a new type of burner developed. According to industrial practice, compared with the traditional diffusion burner, the flat-flame burner can increase the output by 10% to 20%, and save 15% % ~ 30% of the fuel. However, there are still the following problems: due to the relatively low adjustment of the flat flame burner, the centrifugal...

AI Technical Summary

Problems solved by technology

However, there are still the following problems: due to the relatively low adjustment of the flat flame burner, the centrifugal effect of the rotating air flow is not strong enough under low load, resulting in the reduction of the recirculation area and the reduction of the flat flame flame plate, and even causes it to burn in the burner brick. The flat flame cannot be formed on the surface, and the expected combustion effect cannot be achieved, which also limits the scope of use of the flat flame burner

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