The calciner is a device that disperses and suspends raw meal powder in the airflow, so that the fuel combustion and calcium carbonate decomposition process can occur within a short time (generally 1.5 to 3 seconds). It is a high-efficiency direct combustion solid-gas phase heat exchange device. Vacuum Heat Treatment of Carbon Boron Steel Fasteners In the calciner, since the combustion of the fuel is carried out simultaneously with the heat-absorbing reaction of the material in a state of intense turbulence, the fine particles of the fuel float and burn at the same time, almost turning the entire furnace into a combustion zone. Therefore, no visible flame can be formed, but it is in a state of low-temperature flameless combustion at 820-900 °C.Correct use and maintenance of vacuum brazing furnace Since its appearance in the 1970s, the calciner has developed rapidly. So far, many types have appeared. According to their structure and working principle, they can be roughly divided into the following four types.Influence of Vacuum Brazing Process on Microstructure of Tungsten and Steel The structure of the cyclone calciner is relatively simple. The structure of a typical swirl calciner is shown in the figure, which is composed of an upper swirl chamber, a lower swirl chamber and a reaction chamber. The inner surface is inlaid with refractory concrete and refractory bricks. There are 1~3 fuel nozzles in the middle of the reaction chamber, which inject fuel downward at an angle of 30°.Research on Sintering Technology of Silicon Carbide Ceramic Material
The calciner is a device that disperses and suspends raw meal powder in the airflow, so that the fuel combustion and calcium carbonate decomposition process can occur within a short time (generally 1.5 to 3 seconds). It is a high-efficiency direct combustion solid-gas phase heat exchange device. Vacuum Heat Treatment of Carbon Boron Steel Fasteners In the calciner, since the combustion of the fuel is carried out simultaneously with the heat-absorbing reaction of the material in a state of intense turbulence, the fine particles of the fuel float and burn at the same time, almost turning the entire furnace into a combustion zone. Therefore, no visible flame can be formed, but it is in a state of low-temperature flameless combustion at 820-900 °C.Correct use and maintenance of vacuum brazing furnace Since its appearance in the 1970s, the calciner has developed rapidly. So far, many types have appeared. According to their structure and working principle, they can be roughly divided into the following four types.Influence of Vacuum Brazing Process on Microstructure of Tungsten and Steel The structure of the cyclone calciner is relatively simple. The structure of a typical swirl calciner is shown in the figure, which is composed of an upper swirl chamber, a lower swirl chamber and a reaction chamber. The inner surface is inlaid with refractory concrete and refractory bricks. There are 1~3 fuel nozzles in the middle of the reaction chamber, which inject fuel downward at an angle of 30°.Research on Sintering Technology of Silicon Carbide Ceramic Material