Vacuum heat treatment equipment forms carbon nodules

Vacuum heat treatment equipment forms carbon nodules

Combustible substances or fine coal chips are volatilized from the fuel, and the flue gas flows while burning. If the furnace space (volume) is too small, the flue gas flows too fast, and the flue gas stays in the furnace for too short a time. Combustibles and coal dust are fully burnt. In particular, when combustibles (combustible gas, oil droplets) touch the heating surface of the boiler before they are completely burned, the combustibles are cooled below the ignition temperature and cannot be completely burned, forming carbon nodules. At the same time, ensuring enough combustion space is conducive to the full contact and mixing of air and combustibles, so that combustibles can be fully burned.

Vacuum heat treatment equipment must be fully contacted and mixed with enough air in the air

The fuel must be fully contacted and mixed with enough gas in the air during combustion. When the furnace temperature of the high temperature muffle furnace is high enough, the combustion reaction speed is very fast, the oxygen in the air will be quickly consumed, and enough air must be supplied. The amount of excess air should not be too much and should be appropriate to avoid lowering the furnace temperature.

The temperature of vacuum heat treatment equipment is the primary condition for fuel combustion

Temperature is the primary condition for fuel combustion. The lower temperature required for the fuel to start a vigorous oxidation reaction is called the ignition temperature. The heat required to heat the fuel above the ignition temperature is called the heat source. The heat source for the fuel to ignite in the combustion chamber generally comes from

Heat radiation from the flame and high temperature muffle furnace walls and contact with high temperature flue gas. The temperature of the furnace composed of the heat source must be kept above the combustion temperature of the fuel, that is, the furnace temperature must be high enough so that the fuel can burn continuously, otherwise the fuel will be difficult to ignite, unable to burn, or even broken.

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