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Super Rotary
Sludge DryerSludge Reduction Equipment
Super Rotary Sludge Dryer
The Super rotary sludge dryer is a developed equipment by Jiangsu Benenv Environmental Technologies Co., Ltd. It incorporates the efforts of experts in the field of drying and carbonization from Japan, and universities professors. This equipment uses clean energy as heating and adopts direct drying method. The moisture content of the material can be reduced to 10%.
Compared with direct sludge heating and drying, the super rotary sludge dryer requires less energy and reduces carbon emissions, which meets the international low-carbon environmental protection requirements.
High thermal efficiency
Low energy consumption
No blockage due
to sludge bonding
Small footprint
Low investment cost
Clean process
Pollution free
Wide application
Simple operation/Low maintenance
Dried product added value
Application Areas
Municipal Sludge
Dyeing Sludge
Livestock Manure
Electroplate Sludge
Structure Principle
* Drying Principle
The sludge cake is pre-crushed by the stirring device of the feeding hopper, then conveyed by the twin-screw feeder to the main rotating drum, where the sludge will be crushed into small pieces of size 1-3 mm. The wall plates of the drum drives the small sludge particles forward, by lifting and dropping it, while being continuously stirred and crushed by the disintegrating shaft. The specific surface area of the material increases the contact area with the hot air and accelerates the drying process with high efficiency.
Process Flow
Equipment Layout Reference Drawing
Specifications
| Standard Models | Dimensions（mm） | Equipment Weight（ton） | Material Handling Capacity （Kg/hr.） | Water Evaporation Capacity （Kg/hr.） | ||
| L | W | H | ||||
| BRD-150 | 7000 | 2215 | 2270 | 6.5 | 200~240 | 150~180 |
| BRD-300 | 8000 | 3500 | 3200 | 10 | 400~480 | 300~360 |
| BRD-500 | 8600 | 3700 | 3600 | 17 | 650~800 | 500~600 |
| BRD-1000 | 10500 | 4600 | 4500 | 28 | 1300~1600 | 1000~1200 |
| BRD-2000 | 12000 | 5800 | 4600 | 65 | 2600~3200 | 2000~2400 |
| BRD-2500 | 14500 | 7200 | 5200 | 76.5 | 3250~4000 | 2500~3000 |
Product Comparative Advantage
* Based on evaporation of 1 ton of water
| Parameters | Belt Dryer | Pump Belt Dryer | Disc Dryer | Rotary Kiln Dryer | Super Rotary Sludge Dryer |
| Thermal efficiency | 30% | 30%~40% | 30%~40% | 40% | 70% |
| Power (kw/hr.) | 70 | 65 | 60 | 55 | 50 |
| Exhaust air volume (m3/min) | 200 | 60 | 60 | 140 | 120 |
| Final moisture | 30%~40% | <40% | 35% | 35% | 10% |
| Drying method | Direct drying | Indirect drying | Indirect drying | Direct drying | Direct drying |
| Operating cost | High | Medium | High | High | Low |
| Investment cost | Medium | Medium | High | Medium | Medium |
Benefit the Environment
Beneny Group has more than 10 subsidiaries, with total assets of morel than 80 million USD. Benenv has more than 60 national patents and a number of international certifications, such as ISO9001 international quality system certification, CE EU certification, Ecovadis certification, etc.