1. Technical principle of decanter centrifuge
Decanter centrifuge is a device that generates centrifugal force through high-speed rotation to separate solids and liquids in materials. Its working principle is: when solid materials (such as sludge, slurry, oily wastewater, etc.) are fed into the drum, a centrifugal field is formed under high-speed rotation, and the solid particles with higher density are thrown to the drum wall to form a sediment layer, while the lighter liquid flows out along the center.
Technical points include:
The drum speed is as high as 3000rpm or more, achieving a high G value (centrifugal force multiple) and extremely high separation efficiency;
There is a speed difference between the screw conveyor and the drum, which continuously pushes the solid phase out of the slag discharge port;
It can be configured with variable frequency drive and differential speed adjustment system to meet the needs of different material separation.
This process method without filter cloth, medium and fully automatic operation naturally meets the core demands of green production – low pollution, low labor, low energy consumption and high recovery.
Application scenarios of decanter centrifuge
1. Municipal and industrial sludge dehydration
In municipal sewage treatment plants and industrial wastewater treatment such as electroplating, papermaking, printing and dyeing, and chemicals, decanter centrifuges can dehydrate sludge with a moisture content of more than 95% to less than 70%, greatly reducing the amount, which is convenient for subsequent drying or incineration.
2. Oilfield and petrochemical wastewater treatment
Decanter centrifuges can efficiently separate oil, water, and solid particles in oily wastewater, especially in oilfield drilling fluid treatment and Sinopec waste liquid separation, which can achieve oil recovery and minimize waste residues and reduce environmental risks.
3. Food and plant extraction industry
In the separation process of soy milk, juice, wine lees, plant residue liquid, etc., decanter centrifuges can achieve clear liquid recovery and solid separation, avoid raw material waste, and support the entire green manufacturing process.
4. Pharmaceutical and biological fermentation industries
In the separation of biological fermentation liquid and the concentration of bacterial sedimentation liquid, the horizontal screw centrifuge can replace the traditional sedimentation or filter press method, improve the separation accuracy and reduce the discharge of drug residues.
Assisting the “Dual Carbon” Goal
With the proposal of the “carbon peak and carbon neutrality” goals, manufacturing companies need to promote energy conservation and emission reduction from the process equipment level. Decanter centrifuges play a key role in the following aspects:
Lower energy consumption:
Compared with traditional filter presses, decanter centrifuges adopt continuous operation, with fewer start and stop times and lower average power consumption, which is suitable for 24-hour uninterrupted green factories.
More efficient resource utilization:
Maximum recovery of liquid or solid resources during the separation process, reducing waste and optimizing raw material utilization efficiency.
Less environmental pollution:
No need for filter cloth, less coagulant, and reduced secondary pollution. Closed structure design avoids odor and exhaust gas leakage.
Save labor and land:
The fully automatic control system reduces manpower dependence and occupies a compact space, which is suitable for energy-saving smart factory deployment.
Providing green production solutions
As China’s leading manufacturer of decanter centrifuges, we not only provide high-quality equipment, but also provide one-stop green separation solutions:
Support customized design
Customize the drum size, differential, spiral blades, materials, etc. according to the material characteristics of different industries (particle size, viscosity, solid content, temperature, etc.).
Energy-saving structural optimization
Optimize the drum structure, reducer matching, and power system configuration to ensure the lowest energy consumption of the equipment under unit processing volume.
Intelligent upgrade options
Support PLC+touch screen control, remote operation and maintenance module, and data acquisition interface to achieve digital management.
Today, when green manufacturing has become a global consensus, choosing an efficient, energy-saving and environmentally friendly decanter centrifuge is not only a means to improve corporate productivity, but also a manifestation of the concept of sustainable development. Decanter centrifuges are playing an irreplaceable role as “green core equipment” in many industries such as municipal administration, environmental protection, food, pharmaceuticals, and chemicals.
We will continue to be driven by technological innovation to provide customers with more efficient, more environmentally friendly, and more intelligent separation solutions, and contribute to the realization of green factories and low-carbon society.
