About the location where chlorate decomposition passes into Plant air
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This post was last edited by sunjl1981 on 2013-1-6 23:53 In the caustic soda process, there are generally corresponding chlorate decomposition equipment. When we design, we usually add hydrochloric acid to the chlorate decomposition tank to adjust the pH, heat it with low-pressure steam, and introduce plant air to take away the generated waste gas. I would like to ask, where is the better place to introduce plant air? At the bottom of the liquid in the tank or above the liquid? What are the pros and cons of each of the 2 methods? This post was last edited by limingshuguang on 2007-12-19 09:40 ] # , , &
:(I don’t know which one is actually used more often.~~~
According to the equipment structure of the chlorate decomposition tank, if air is to be introduced, it is recommended to be at the bottom of the liquid for the following reasons:: 1. Able to stir liquids and mix steam and salt water evenly ； 2. It can take away the decomposed gas more evenly.
Our caustic soda does not use a chlorate decomposition tank. If anyone has used it, please tell us about the results!
If air is introduced into the device on the liquid surface, 1. Can reduce low pressure steam usage2. The temperature of the exhaust gas is low, and the risk of ClO3 explosion is reduced3. The amount of vapor in the exhaust gas is small, and the corresponding pipes can be smaller. :victory:
Thanks for the answer, it makes sense~! After consulting experts, the analysis is as follows 1. Reduce the use of low-pressure steam. Since the air in the device does not enter from the bottom of the solution, but is introduced from above the liquid surface (the temperature of the device air is normal temperature, it must be lower than the low-pressure steam temperature). The temperature of the discharged gas (assuming the room temperature is 10 degrees, then about 40 to 50 degrees) is much lower than when the air is introduced from below the liquid surface (about 80 to 90 degrees), so the amount of steam is saved. 2. The temperature of the discharged gas is low, and the risk of ClO3 explosion is reduced. In this case, the temperature of the discharged gas is lower than when air is introduced into the device from the bottom, so the risk of ClO2 explosion is reduced. 3. It’s easy to understand 4. When air is introduced into the device, wet chlorine can be used instead.