In the process of production, potassium hydroxide needs to be heated. In the process of production, the liquid alkali should be evaporated and concentrated to a certain concentration before subsequent processing. But do you know how to heat it? Let's talk about it in detail.
The traditional boiler method uses fire to heat the alkali boiler directly. The coal combustion is incomplete. The ash and soot deposit in the furnace and the alkali fixing boiler, so the heat transfer power is low. In order to save energy, the three connected pot method is usually used, that is, preheating pot, cooking pot and color mixing pot.
Potassium hydroxide molten salt heating unit is a coal-fired molten salt heating system, which is used to control the temperature of molten salt reaching the concentrator to meet the process requirements of high concentration unit. The molten salt with coal as fuel enters the furnace, and the temperature is 430 ℃ required by the concentrator. When the molten salt is separated from the high concentration unit, the temperature is 400 ℃, which flows into the molten salt tank through gravity, and then the molten salt is transported by the molten salt pump to circulate the whole molten salt system.
The above content is the content of the heating method of potassium hydroxide, which has been further studied. In addition, the high-temperature gas from the molten salt furnace enters the steam generator, then enters the water film dust remover after cooling through the air preheater, enters the induced draft fan after desulfurization, and then enters the chimney through the induced draft fan to exhaust to the atmosphere.
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