Combustion structure of kiln

窑炉的燃烧结构

Abstract

The invention relates to a high-efficiency combustion structure of a kiln, which is used for solving problems of low heat efficiency and the like due to an unreasonable design of a flaming port in an existing kiln structure. The inside of the combustion structure is triangular, the appearance of the combustion structure is a right trapezoid, the combustion structure comprises a flaming port arch, a flaming port, nozzles, an oblique arch and a bottom plate, wherein the flaming port arch is connected with the oblique arch, the bottom plate is disposed below the oblique arch, a cavity between the bottom plate and the oblique arch forms an combustion air nozzle, the flaming port is disposed at one end, which is close to the flaming port arch, of the bottom plate, and a plurality of natural gas nozzles are disposed on the flaming port. The combustion structure of the kiln has the advantages that both the oblique arch and the bottom plate have downward inclinations, each nozzle is separated from the flaming port arch by a transverse distance, the combustion structure is favorable for sufficiently mixing natural gas with secondary air, simultaneously, carbon granules are dissolved out, and flame radiation intensity is improved. Simultaneously, the nozzles are designed to be trumpet-shaped, and are favorable for expanding flame, ash can be conveniently cleaned due to an inspection hole, and the service life of the combustion structure is prolonged.
本发明涉及一种高效率的窑炉燃烧结构以解决现有窑炉结构中由于喷火口设计不合理而造成的热效率不高等问题。该燃烧结构内部为三角形,从外部看呈直角梯形,包括有喷火口碹、喷火口、喷嘴、斜碹、底板,喷火口碹与斜碹连接,底板设置在斜碹下方,底板与斜碹之间的空腔构成助燃风喷口,喷火口设置在底板靠近喷火口碹的一端,喷火口上设置有多个天然气喷嘴。其有益效果在于:斜碹与底板均设置了下倾角,且喷嘴距离喷火口碹有一横向距离,有利于天然气与二次空气充分混合,同时析出碳粒,增大火焰辐射强度;同时,喷嘴设计成喇叭型,利于火焰扩展;检查口的设置也便于清灰,延长使用寿命。

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