Applications
Environmental & Sludge
Volume reduction and drying of industrial sludge and filter cake to lower disposal costs and handling volume.
Discuss Your MaterialRecommended Equipment
Equipment suited to this application
KJG SeriesDrying Equipment
KJG Hollow Blade Dryer
Self-cleaning wedge-shaped hollow blade (paddle) dryer for indirect heating, cooling, and low-temperature calcination.
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ZPG SeriesDrying Equipment
ZPG Vacuum Rake Dryer
Horizontal batch vacuum dryer with a scraper-blade rake for pastes, paste-like, and powdery materials.
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PLG SeriesDrying Equipment
PLG Continuous Plate Dryer
Conduction-type continuous multi-plate dryer with atmospheric, closed, and vacuum configurations for large drying areas in a small footprint.
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Related project examples
Chemical
Vacuum Rake Drying for an Oxidation-Sensitive Chemical Intermediate
A specialty chemical producer needed to dry a paste-form intermediate that was prone to oxidation and discoloration when exposed to air at elevated temperature. Conventional oven drying produced inconsistent color and required a lengthy secondary solvent-recovery step, adding cost and processing time to each batch.
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Filter Cake Volume Reduction with a Hollow Blade Dryer
An industrial facility needed to reduce the volume and weight of filter cake generated by its wastewater treatment process to lower disposal costs and transport frequency. The material had a variable moisture content and needed continuous processing to keep pace with the treatment line.
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Drying Pigment Filter Cake in a Vacuum Rake Dryer
Pigment filter cake arrives from the filter press as a dense, water-wet paste. Drying it in a tray oven drives surface water off quickly but leaves the cake case-hardened, so the last of the moisture has to diffuse through a crust and the batch takes far longer than the first hour suggests. Colour shift is the other risk: pigment pastes that sit on a hot surface discolour at the contact layer.
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Continuous Plate Drying for a Solvent-Wet Chemical Powder
Granular chemical powder leaves the centrifuge wet with solvent, and the moisture has to come off without pushing the product past its temperature limit. A single-zone tray oven cannot do both jobs. The trays nearest the heat source dry first and keep taking heat while the rest of the batch is still wet, so one batch ends up over-dried and under-dried at the same time. Operators compensate by extending the cycle, which lengthens thermal exposure for the whole batch and raises the solvent load in the exhaust. Solvent recovery adds a second constraint: the drying chamber has to stay closed and the vapour has to leave through one controlled outlet instead of an open door.
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