I. Classification and Characteristics of Fuel Oil Burners:

　　● Fuel oil needs to be atomized before combustion. Therefore, in addition to the basic performance of general combustion devices, fuel oil burners should also have good atomization capabilities to ensure fuel combustion. Fuel oil burners are mainly classified according to the oil atomization method:

　　1. Gas-atomized oil nozzles atomize oil using the momentum of a gaseous medium. This is divided into high-pressure medium (steam or compressed air) atomization and low-pressure air atomization. Heavy oil burners generally use compressed air as the atomizing medium, with an atomization pressure of 2-6 kg. The high pressure atomizes the fuel oil into very small oil droplets, which are thoroughly mixed with the combustion air for complete combustion, resulting in less oil dripping and black smoke.

　　2. Mechanical atomizing oil nozzles use mechanical methods to directly atomize the oil. This involves high-pressure oil undergoing centrifugal breakup and sudden expansion breakup through the nozzle, or using a high-speed rotating cup to centrifugally break up the oil before further atomization with low-pressure air.

　　● In addition, there are methods using sound waves or magnetization to reduce oil viscosity and improve atomization; there are also methods that use both medium atomization and mechanical atomization to achieve heavy oil atomization.

　　1. Low-pressure fuel oil burners use all combustion air as the atomizing medium, relying on the momentum of the airflow to atomize the oil. If the oil pressure is too high, the oil speed increases, making it difficult to ensure atomization quality and resulting in a bulky structure.

　　2. High-pressure nozzles typically use high-pressure steam or compressed air as the atomizing agent. The high-speed airflow formed by the atomizing agent impacts the fuel to atomize the oil.

　　Good atomization performance and strong adaptability to oil. Disadvantages include high noise and high operating costs. Suitable for various industrial furnaces with high thermal loads.

　　● High-pressure nozzles are mainly divided into two categories:

　　1. External mixing fuel oil burners, where the atomizing agent and oil mix outside the nozzle outlet.

　　2. Internal mixing fuel oil burners, where the atomizing agent and oil mix inside the nozzle. This results in better atomization quality, such as internal mixing nozzles with diffusers and multiple nozzles.

　　II. Which industrial kilns or heating equipment are mainly suitable for heavy oil burners?

　　Heavy oil burners are mainly suitable for: steel reheating furnaces, rotary kilns, dryers, etc. Currently, heavy oil burners in fuel oil burners are mainly used in foreign markets: mostly in Africa.

　　III. Can heavy oil burners be automatically controlled?

　　Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd., based on years of experience in fuel kiln projects, does not recommend users to use automatic control systems, especially in relatively economically underdeveloped African regions, manual control is sufficient.

　　Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. undertakes domestic and international projects: gas and fuel oil kilns, automated control systems, desulfurization and denitrification equipment, kiln body material construction, online monitoring devices "turnkey" projects, a "one-stop" kiln solution provider and implementer.