Boiler professional burner, how much do you know?

　　How much do you know about boiler burners?Today by small make up for everyone to summarize the role of boiler burner and classification it ~QahBoiler Burner

　　Boiler burner is the fuel and combustion required air, according to a certain proportion, speed and mixing mode, through the nozzle into the furnace.QahBoiler Burner

　　Burner function:QahBoiler Burner

　　The fuel and the air required for combustion are sent to the furnace through the nozzle at a certain proportion, speed and mixing mode.QahBoiler Burner

　　1. Ensure rapid and sufficient combustionQahBoiler Burner

　　2. It can well adapt to the change of load and coal type during operationQahBoiler Burner

　　3. Reduce the generation of NOx to meet the requirements of ultra-low emission of environmental protectionQahBoiler Burner

　　Classification of burners:QahBoiler Burner

　　Dc burnerQahBoiler Burner

　　The outlet airflow is direct current jet, which is generally arranged in the four corners of the furnace to make the pulverized coal airflow burn in the cut circle in the furnace.QahBoiler Burner

　　1. Pulverized coal precombustion chamber burnerQahBoiler Burner

　　This is a new type pulverized coal burner which is the earliest studied and most widely used in China.A precombustion chamber burner is a precombustion chamber made of refractory or heat-resistant steel.QahBoiler Burner

　　2. Blunt body burnerQahBoiler Burner

　　It is in the corner of the type of pulverized coal burner each corner of the primary air nozzle outlet, set a non-flow line object - blunt body, so that the pulverized coal flow in the wake area of the blunt body generated reflux, entrainment high temperature smoke, in order to facilitate the ignition of fuel and flame stability.The pulverized coal torch burns in the furnace in a quadrature cut circle.QahBoiler Burner

　　3, flame stable combustion ship burnerQahBoiler Burner

　　Its structure is that a ship-shaped flame stabilizer is installed in the primary tuyles of a conventional direct current pulverized coal burner, and a small oil gun is set at its center.After adopting this structure, the upper pulverized coal gas flows around it and into the furnace, forming a beam waist jet not far from the primary air nozzle.The outer edge of both sides of the girdle waist forms an area with high temperature, high pulverized coal concentration and appropriate oxygen concentration, which becomes a good ignition heat source for igniting pulverized coal airflow, thus stabilizing combustion in the furnace.QahBoiler Burner

　　4. Shade burnerQahBoiler Burner

　　The so-called thick and weak burner is to separate the mixture of pulverized coal and air, that is, the primary air flow into two airflow streams, rich powder flow and poor powder flow, so that the concentration of pulverized coal in rich powder flow can be improved on the premise that the total air volume of the primary air is unchanged.QahBoiler Burner

　　Cyclone burnerQahBoiler Burner

　　The outlet flow contains a rotary jet rotating around the axis of the burner.The rotation of airflow will form a low pressure area in the center of jet flow, thus entrainment and absorption of high-temperature flue gas at the boundary, which is suitable for coal with higher volatile content.QahBoiler Burner

　　No matter what kind of burner, the ultimate purpose is to make the pulverized coal burn better and cleaner.However, the dc burner creates a dynamic field in the furnace and rotates the air in the furnace by means of cutting a circle to attract the surrounding high-temperature smoke to participate in the combustion.On the other hand, the swirl burner is designed to disturb the air so as to make the pulverized coal air mix sufficiently and facilitate combustion.QahBoiler Burner