\"Ash\" caking in the horizontal radiation chamber of the smelting furnace waste heat boiler
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Recently, our company’s smelting furnace has experienced several instances of caking of soot (containing concentrate) in the horizontal radiation chamber of the waste heat boiler. The caking forms along the membrane walls of the horizontal radiation chamber, reaching a thickness of 10 centimeters; it accumulates on the grid plates up to approximately the height of the baffle plates, and the slag tube bundles become blocked as a result. There are no significant changes in the composition of the raw materials fed into the furnace, and the impurity content is low ； The air volume entering the furnace is also basically stable, and the negative pressure is under normal control. Has anyone encountered this situation? Please help analyze it! ! !
Friend: Check whether the moisture content of the materials fed into the furnace is appropriate, and also what is the frequency of your exhaust fan? Is the suction too strong?
The moisture content entering the furnace is currently around 9%, which is slightly higher than before.
The key to checking moisture levels is to see what the granulation effect of your feed material before being fed into the furnace is like According to you, it seems that the feed material you used didn’t react before being drawn into the boiler, where it melted and formed lumps.
The material fed into our furnace is not granulated, and the problem of ore concentrate being mixed in with the ash persists; as a result, the copper content in the dust from our waste heat boiler remains high.
Which company do you work for? I can help you analyze it