The double-hollow-shaft impeller dryer is not operating properly; seeking help
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The impeller dryer in our factory is used to process sludge from sewage treatment plants, but it doesn’t function properly during operation: either the mixture becomes too liquid and spills everywhere, or it becomes too dry and won’t allow material to be discharged. According to their initial troubleshooting team, personnel from the manufacturer came and said there was an issue with the product selection, as organic sludge is not suitable. I don’t think it’s very likely; I’d appreciate some guidance from experts with relevant experience.
The model of the dryer is: JG-100 sludge drying machine, designed by Nanjing Tianhua. I checked, and the applicability of the impeller dryer is quite wide. Why do some people say that different dryer models are used for organic sludge and inorganic sludge?
Practice has shown that some materials are indeed very special; on the surface it may seem feasible to use similar drying equipment from the same industry, but many problems arise during operation. This is why the importance of drying tests is emphasized – drying tests must be conducted before selecting equipment for such special materials. You can try to see if the mixed dry material can function properly. Drying Technology Resources Blog http://blog.sina.com.cn/dcyang01
Organic sludge is acceptable; the sludge treatment unit at Luoyang Petrochemical is operating normally. The key factors are the moisture content of the import material, slope, etc.
I don’t know what the initial state of the materials is Thin and mushy?
The hollow twin-blade dryer has a wide range of applications; for liquid-like materials, it depends on the properties of the raw material. Some materials are solid at room temperature; when heated, they turn into a liquid with good fluidity, and after drying, they revert to a solid powder. For drying materials like this, two approaches can be considered: one is to use a mechanical seal on the dryer to prevent the material from escaping, and the other is to mix the dried material with the raw material before drying it again.