How to deal with soda ash agglomeration in end product packaging.
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This post was last edited by chen-jun-1024 at 2010-11-12 12:50 Reason analysis? What to do?
reason； 1. The calcining steam temperature is low or the steam pressure is low. 2. The amount of alkali return is small, or the alkali return pipe is blocked. 3. The cold alkali machine is leaking. deal with ； 1. Increase steam pressure or temperature. Block alkali when necessary to reduce cutting. 2. Unblock the alkali return pipe. 3. Repair the cold soda machine.
The structure of the alkali feeding auger in the calciner has a direct impact on the mixing effect of wet heavy alkali and return alkali. The uniformity of the wet heavy alkali mixing before entering the furnace directly affects the agglomeration degree of the alkali. Insufficient mixing causes the heavy alkali to have high local moisture, and is loaded into the furnace in the form of a ball. After calcination, it becomes lumpy. The friction and extrusion in the furnace cavity and the alkali transportation system cannot break the alkali blocks to the required extent, which results in a large number of agglomerates in the finished soda ash. To change this situation, it is necessary to improve the alkali feeding auger, and it is best to add a premixing device.
What if it’s packaged? How to deal with finished alkali?
Our waste alkali is used for desulfurization
personal thoughts: The main reason why caustic soda agglomerates is that there is still a certain amount of moisture in the caustic soda ash, or the caustic soda ash bag is not properly sealed! It is also possible that the bagging temperature of the caustic soda is too high!
Reply 3# chen-jun-1024 What the third floor said makes sense. If there is room, it is recommended to add a premixer.
If such a problem is found from the alkali outlet, then I think it is likely that the materials in the furnace are unevenly mixed or insufficiently heated. It is recommended to strengthen mixing and heating
If it agglomerates after packaging, it should be caused by water leakage. If water leaks from one place to the inside, it is easy to produce hollow columnar agglomerations.
What you are talking about may be the clumping that occurs after the product is packaged normally. If so, for this problem, it mainly depends on the degree of agglomeration. If it is serious, it means that the moisture content is high, and we should consider crushing and returning to the furnace for calcination. ； Generally, if the stuttering is not serious, it can usually be added at the point where the alkali scraper comes out of the calciner. This will not affect the quality, and can also break the scars on the scraper and the alkali bin chain mill. At the same time, the alkali screen in the alkali bin can also prevent the scars from entering the finished product packaging bag.