Slag dewatering technology for gasification furnaces
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Environmental regulations are becoming increasingly strict; there are requirements regarding the moisture content of slag that is to be sent to slag dumps. The slag produced during the manufacturing process has a moisture content of 50%, which does not meet the requirements for disposal at such sites. Experts, what technologies do you use for slag dewatering?
A vibrating dehydration screen is installed at the outlet of the slag extractor to separate the slag from the water
It depends on what kind of slag it is; generally, installing a vibrating screen after using the slag removal machine can help reduce the amount by about 10%, or controlling the water flow naturally within the factory premises can also work； If it’s fine slag, see if it can be used in a thermoelectric boiler or equipped with a ceramic filter.
Our slag is the coarse and fine slag produced by the Texaco water-coal slurry gasifier
Coarse slag is processed using a vibrating screen, while fine slag is processed using a filter press
The residual carbon content in Texaco gasifier slag is relatively high, usually exceeding 20%, and this is likely the main reason for the high water content. Currently, there are companies in China that specialize in the recovery of ash and residue carbon from water-coal slurry; its calorific value is around 3000. Consider what was said by @Floor 3.
We are manufacturers of vibrating screens for use in slag skimming machines