Henan ZJN Environmental Sci-Tech Co., Ltd products

This dryer is specially for drying paper mill sludge. In drying process, the will be kept. But the Heavy metals and pathogens will be reduced. Papermaking sludge is a bio-solid waste, which contains a large amount of cellulose-like organic matter and nitrogen, phosphorus, potassium and other plant nutrients, but also contains little heavy metals and pathogens. According to this feature, we developed this drying equipment for drying papermaking sludge to be agricultural fertilizer. The dry sludge can be directly used as a soil improver. It can also be composted and processed into organic compound fertilizer.

Printing and dyeing sludge contains a large number of chemical residues, with high proportion of inherent water, is very difficult to dehydrate. Its composition is very complex, with high content of harmful substances and a certain degree of stickiness. After the mechanical filter, the sludge moisture content is still as high as 75 ~ 85%. However, the organic components in printing and dyeing sludge is very high. The calorific value of dry sludge can reach 2000kcal/kg, about 30% - 50% coal. With considerable energy use value, the dry sludge can be mixed with coal as boiler fuel, resulting in economic benefits. ZJN Drying equipment can maximize this benefits. General printing and dyeing enterprises are set up a large number of flue gas flue gas, ZJN can use the boiler flue air to dry sludge below 30% moisture. And the dry sludge will be small particles. It will greatly reduce the sludge storage and transportation costs and pollution risks.

There are many sludge left after waste waster disposal. The moisture content may be not high, but they are very pasty, very hard to dry. Our drying equipment use large volume low temperature technology to dry. Combining with rotary harrow and specially leading and raising boards, we can dry sewage sludge to below 10% moisture content. What’s more, different sewage sludge, we use different technology to make sure its most suitable and energy saving equipment for you! If you need the whole plant from sewage dewatering to sludge drying, feel free to contact us also. We will give you the best sollution!

Municipal sludge relates to people living environment and health. It is necessary dry them. However, municipal sludge is high humidity and strong viscosity and easily to bond again, traditional drying machine can’t dry it completely. Our drying equipment is triple stage and multi-loop rotary dryer for municipal sludge. We specially designed rotary harrow, hot air distributor and discharging system, W type guiding and lifting boards, S Type transporting way, three levels cylinders etc, and have over 100 patent technology. With the combination function, it efficiently prevents sludge bonding again or bonding to the cylinders, heating energy is fully used, drying speed largely increased, thus sludge will be dry more completely as request!

River/Port sludge is mainly from the river/lake/sea which is polluted. If these slduge not to treat, it may take more pollution. And the dry sludge is rich of mineral substances, can be used as fertilizer material. But such sludge is hard to dry. There are much bound water, so that it is pasty. To overcome this problem, we designed drying equipment specially for River/Port sludge. It contains rotary harrow, feeding and discharging system, hot air distributor and discharging system, W type guiding and lifting boards, S Type transporting way, three levels cylinders etc, and have over 100 patent technology, is multi-loop and three level drying machine. With the combination function, it efficiently prevents sludge bonding again or bonding to the cylinders, heating energy is fully used, drying speed largely increased.