What is a Decanter centrifuge?
The horizontal screw centrifuge, full name is horizontal screw discharge sedimentation centrifuge, its core function is to use centrifugal force to achieve efficient separation of solid-liquid mixture. The equipment is mainly composed of a drum, a screw propeller, a differential, a drive motor, a frame, a liquid phase outlet and a solid phase slag outlet.
Working principle explanation:
Feeding: The material is introduced into the drum through the feed pipe;
Separation: The high-speed rotation of the drum generates a strong centrifugal force, so that the dense solid particles quickly settle on the drum wall, while the liquid phase moves to the center;
Slag discharge: The screw conveyor rotates slowly at a small differential speed, and the solids deposited on the drum wall are continuously pushed to the slag discharge port for discharge;
Liquid discharge: The clarified liquid flows out from the overflow port to complete the entire separation process.
The process is fully closed, automated, and runs uninterruptedly, which is an ideal solution for processing large amounts of continuous materials in industrial scenarios.
Core technical advantages of Decanter centrifuge
1. Efficient and continuous operation
Compared with intermittent separation equipment, the horizontal screw centrifuge can achieve 24-hour continuous feeding, slag discharge and liquid discharge, greatly improving the processing efficiency and equipment utilization rate.
2. Excellent dehydration capacity
The equipment has high speed and strong centrifugal force, which can dehydrate materials with high moisture content to less than 40% (depending on the nature of the material), significantly reducing the back-end drying pressure.
3. Adaptive differential speed adjustment
The relative speed of the drum and the screw is controlled by the differential, so that the equipment can automatically adjust the propulsion speed according to the characteristics of the material to achieve the best separation effect.
4. Closed operation is safer
The entire separation process is carried out in a closed state, which effectively controls the leakage of odor and is suitable for industries with high requirements for cleanliness and safety such as chemical and pharmaceutical industries.
5. Wear-resistant and corrosion-resistant wearing parts
Using duplex stainless steel, 316L stainless steel, tungsten carbide, ceramics and other materials, it has excellent corrosion resistance and extends the service life of the equipment.
Typical application areas of decanter centrifuges
1. Municipal and industrial wastewater treatment
The wastewater discharged by urban sewage treatment plants, industrial parks, and electroplating enterprises contains a large amount of suspended solids. The decanter centrifuge can deeply dehydrate the concentrated sludge, and the moisture content of the mud cake can be reduced to less than 60% after compression, greatly reducing the pressure of sludge transportation and treatment.
2. Food and beverage industry
In the solid-liquid mixing process of tofu residue, fruit and vegetable juice residue, alcohol residue, whey, starch, etc., the decanter centrifuge can not only improve the production line efficiency, but also meet the food grade hygiene standards through different materials and liquid contact parts.
3. Petrochemical and drilling mud
A large amount of oil-containing drilling fluid and mud are generated in oil exploration and exploitation. The decanter centrifuge can achieve oil, water, and solid three-phase separation and realize resource recycling.
4. Biopharmaceuticals and fermentation extraction
During the production of antibiotics, enzyme preparations, and amino acids, the fermentation broth contains a large amount of bacteria or cell fragments. The horizontal screw centrifuge can efficiently recover or separate them to ensure product purity and yield.
Comprehensive analysis of the user value of the Decanter centrifuge
1. Save costs for users
Reduce moisture content → Save sludge transportation and drying costs;
Automated operation → Reduce manual supervision and misoperation;
Durable design → Reduce the frequency of replacement of wearing parts and maintenance costs.
2. Improve separation efficiency
Lower mud cake moisture content;
Higher clarity of water outlet;
Faster processing capacity, easily cope with peak production load.
In today’s world of high environmental pressure and increasingly fierce market competition, how to improve process efficiency, reduce operating costs and ensure product quality has become a difficult problem faced by every industrial enterprise. The decanter centrifuge is the “weapon” to solve this problem.
If you are looking for a truly reliable, intelligent and energy-saving solid-liquid separation equipment, please contact us, we will tailor the most suitable decanter centrifuge solution for you!
