Energy saving intelligent environmental protection kiln project
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Pubtime：2023-05-03 15:29:08
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Source：Network
1、 Classification of low nitrogen multi-channel rotary kiln burners: Zhengzhou Zhongwei Environmental Protection Company has customized multiple types of fuel rotary kiln burners, which are suitable for a wide range of fields and can be divided into: natural gas rotary kiln burners, coke oven gas rotary kiln burners, blast furnace gas rotary kiln burners, light hydrocarbon gas rotary kiln burners, ore furnace rotary kiln burners, converter gas rotary kiln burners, yellow phosphorus tail gas rotary kiln burners Diesel rotary kiln burners, heavy oil rotary kiln burners, coal powder burners, etc., have the advantages of low equipment maintenance rate, low energy consumption, and environmental protection, and are regarded as ideal replacement products by rotary kiln equipment users.
2、 Structural composition of rotary kiln burner:
1. The low nitrogen rotary kiln burner mainly consists of pipelines, nozzles, metal ripple compensators, butterfly valves, pressure measuring instruments, and protective layers.
Pipeline: From the outside to the inside, there are axial flow air channels, coal air channels, swirling air channels, central air channels, and fuel pipes. Because the fuel pipe is only used for ignition, it is commonly referred to as a four channel fuel pipe.
Nozzles: Made of special materials, the cross-sectional area of the outlet of the swirling air can be adjusted to adjust the spraying speed and air volume of the swirling air. The entire set of nozzles is a key component to ensure the shape of the flame.
Swirl wind ripple compensator: It is the main component that connects the internal and external pipelines of the swirl wind, seals and adjusts the flame shape.
Butterfly valve: used to regulate air volume.
Pressure measuring instrument: indirectly displays the spray speed of the air outlet inside the burner.
Protective layer: refers to the refractory pouring layer, which is poured on-site by the user.
2. The working principle of a coal powder burner: The coal powder is carried by the airflow and sprayed outward from the coal air duct at a certain diffusion angle. The combustion air from the outer neighbor transmits a considerable amount of momentum and moment of momentum. The swirling air on the inner side mixes with the sprayed coal powder airflow and spirals forward at high speed, meeting the high-speed axial flow airflow beam. The insertion of axial flow air beams further enhances the mixing of coal and air (including the surrounding secondary air), and can adjust the degree of flame divergence. It can adjust the length and thickness of the flame as needed to achieve the desired flame shape* The role of wind is to promote the combustion of a small amount of coal powder and CO in the * section, making the combustion more complete and playing a stabilizing role. Due to this combustion mechanism and the high speed of swirling and axial air, combustion is very rapid and complete.
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