What determines the efficiency of the burner in a high-temperature tube furnace

　　High temperature tube furnaceThis is a new type of high-performance and energy-saving electric furnace developed using technology, mainly used in experiments and small-scale production in colleges, research institutes, industrial and mining enterprises, etc.

It has safety and reliability, simple operation, high temperature control accuracy, good insulation effect, large temperature range, high furnace temperature uniformity, multiple temperature zones, optional atmosphere, vacuum furnace type, etc.

Oxygen blowing in steelmaking is one of the important means to enhance electric furnace smelting. Inserting steel pipes into the molten pool to blow oxygen is a commonly used method. In order to fully utilize the chemical energy inside the furnace, the oxygen consumption per ton of steel has gradually increased in recent years; Meanwhile, considering the poor working conditions, safety, and unstable efficiency of manual oxygen blowing, a mechanical device for electric furnace door guns has been developed.

It is steelmaking by generating heat through electrode arcing, where the steel material slowly melts from the center of the electrode towards the periphery, resulting in significant heat loss and longer melting time. Oxygen burner, also known as oxygen burner, is arranged on the furnace wall of the cold zone of the electric furnace, relying on the reasonable matching of the burner and arc power supply to achieve balanced melting of scrap steel.

　　High temperature tube furnaceThe efficiency of burner usage depends on:

1. If the temperature of the scrap steel is high and the heating area is large during the initial melting stage, the efficiency of the burner can reach 80%.

2. Determine the appropriate oxygen oil ratio at different stages, and reduce the amount of burner oil when the scrap steel is close to melting. The fuel used for the burner includes natural gas or coal powder in addition to oil. Oxygen burners are also used to preheat scrap steel at the flue, but environmental protection should be taken into account.

Due to the widespread use of high-temperature tube furnaces in the testing and production of refractory materials, electronics, ceramics, metallurgy, machinery, building materials, special materials, new material development, and other fields, it is inevitable to produce furnace tube carbon slag or coking. In the face of this problem, our usual cleaning methods include physical cleaning and chemical cleaning.

Physical cleaning uses mechanical force to break down the carbon residue accumulated in the pipeline, and then uses high-speed airflow to blow out the debris, making the pipeline smooth. Chemical cleaning is the process of destroying the structure of carbon slag through chemical reactions or reacting with carbon slag to achieve the purpose of slag removal.

due toitsFeatures: The internal pipes are connected by 180 ° stamped elbows. If physical cleaning is used, the cleaning distance is limited at once, and multiple doors need to be opened inside the furnace to clean the furnace tube section by section, and then welded and repaired section by section before using high-speed airflow for blowing. The cleaning time is long and very inconvenient. The chemical cleaning method using aerated gasification combustion only requires opening at the inlet and outlet of the external rich oil pipeline, which can be cleaned in one go without the need for multiple openings and welding repairs, saving labor and time. Due to gasification combustion, the cleaning is also very thorough.