What is a decanter centrifuge?
A decanter centrifuge (also known as solid bowl centrifuge) separates continuously solid materials from liquids in the slurry, and therefore plays an important role in the wastewater treatment, chemical, oil, and food processing industries.
| Attribute |
Value |
| Application |
Sludge dewatering |
| Capacity |
1-100 m³/h |
| Motor power |
4-90 KW |
| Operation |
Automatic |
| Key selling points |
High Productivity |
| PLC |
SIEMENS |
| Energy |
Double motor driving |
| Frequency |
ABB |
Key Features
- All parts directly touching material are made of stainless steel
- Continuous and automatic operation minimizes labor costs
- Two motor drive with adjustable bowl and screw speed via VFD
- Continuous spiral discharging with PLC control and touch screen operation
- Scroll conveyor coated with wearable alloy or welded with alloy plate (according to material characteristics and customer demand)
- Safety protections include: rotation rate detection, vibration protection, motor overload and overheat protection, scroll protection when zero differential speed occurs
Centrifugal Separation Principle
Centrifugal separation uses the principle of liquid phase and solid phase with different densities and insoluble each other in the mixed liquid, and obtains different sedimentation rates in the centrifugal force field to separate and stratify, so as to achieve the purpose of settling solid particles in the liquid.
Centrifugal separation is a pure physical separation, used for liquid-solid, liquid-liquid, liquid-liquid-solid separation, especially in the case of small two-phase density difference or small solid particles, the use of gravity sedimentation can not meet the requirements, the use of centrifugal separation method is easy to achieve.
What Substances Can Be Separated by Decanting?
Decanting can separate solid-liquid mixtures or mixtures of two immiscible liquids. This is because decanting involves carefully pouring of a liquid from one container to another and as such, it can be used to separate immiscible liquids such as oil and water.
Technical Specifications
| Attribute |
Value |
| Application |
Sludge dewatering |
| Capacity |
1-100 m³/h |
| After Warranty Service |
Spare parts |
| Motor power |
4-90 KW |
| Operation |
Automatic |
| Key selling points |
High Productivity |
| PLC |
SIEMENS |
| Energy |
Double motor driving |
| Frequency |
ABB |
| Bearing |
SKF/FAG |
Three-Phase Working Principle
The bowl and screw make high-speed rotation with a certain differential speed between them. The materials enter the bowl from the feed tube. Under centrifugal force, the liquid of higher specific weight accumulates on the bowl's inner walls and is discharged through the centripetal pump or overflow plate. Lighter liquids form an inner liquid ring, stick to heavy liquid surfaces, and discharge from the overflow channel. The spiral material pusher continuously pushes solids to the bowl's taper end where they discharge from the residue outlet after drying.
LW Series 2-Phase Sedimentation Decanter Centrifuge
This horizontal, continuously working sedimentation centrifuge features continuous spiral discharging, ideal for sewage sludge dewatering and thickening.
| Product |
2-phase decanter centrifuge |
| Application |
Plant extraction |
| Capacity |
1-100 M³/H |
| Material |
Stainless steel |
| Control and operation |
PLC control, automatic, touch screen operation |
| Discharging |
Continuous and automatic |
| Motor |
Double motor driving |
| Motor power |
4-110KW |
Technical Features
- All material contact surfaces use high-quality stainless steel or duplex stainless steel
- Specially designed bowl and spirals press dewatered cake at conical end for high dryness
- Double motor with double frequency conversion and multi-stage planetary gear drive
- Real-time automatic adjustment of bowl/screw differential speed based on material characteristics
- Unique DC bus-powered design ensures strong spiral torque while reducing power consumption
- Comprehensive wear protection options including welded hard facing, spray coating, ceramic ports, and more
Company Introduction
Huading Separator has pioneered centrifugal separation technology for over 60 years since its establishment in 1954. As China's leader in mechanical separation technology, our machines serve diverse industries including beverage, dairy, oil processing, chemicals, pharmaceuticals, biotechnology, starch technology, marine engineering, energy, oil fields, and water treatment applications like wastewater treatment and sludge dewatering.
FAQ
1. Who are you?
Huading Machinery has manufactured separators and decanters since 1954, with over 60 years' experience in centrifugal separation equipment design. Our products serve food, beverage, pharmaceutical, chemical, marine, oilfield, energy, mining, mechanical engineering, and wastewater treatment industries.
2. How do you guarantee quality?
As a professional manufacturer with advanced equipment and skilled workers, we conduct strict inspections at each processing stage and provide test reports. We also accept customer FAT testing.
3. How long is the warranty period?
One year after machine arrival at customer site.
4. Do you provide installation and training support?
Our after-sales service includes on-site technician support for installation, commissioning, and training, or online guidance via video.
5. What payment terms do you accept?
Generally T/T or L/C at sight.
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