Under the current background of industrial upgrading and stricter environmental protection policies, decanter centrifuge, as a highly efficient, continuous and automated solid-liquid separation equipment, is widely used in municipal sewage, industrial wastewater, oilfield drilling, food processing, pharmaceuticals, biological fermentation, metallurgical mineral processing and other fields. Compared with traditional separation equipment, decanter centrifuge has the advantages of small footprint, low energy consumption, high efficiency and high degree of operation automation, and is favored by more and more companies.
Municipal sludge dewatering case
It is a large-scale urban sewage treatment plant with a daily sewage treatment capacity of 80,000 tons. Previously, plate and frame filter presses were used for sludge dewatering, which had problems such as discontinuous operation, frequent manual operation, and frequent filter cloth replacement.
Working parameters
Sludge type: biochemical sludge + chemical sludge
Solid content: 1.8%~2.5%
Dewatering target: filter cake moisture content is less than 80%
Operation time: 24 hours continuous operation
Solution
We configured two horizontal screw centrifuges of model LW450×1800, with a drum aspect ratio of 4.0, a variable frequency control system, and an automatic dosing device and an intelligent remote monitoring platform.
Clarification case in the fruit and vegetable processing industry
Customer background
A large juice processing plant produces apple juice, pear juice and other concentrates. The original process is natural sedimentation, which is slow, occupies a large area and has unstable effects.
Working data
The original juice contains fine pulp suspended matter and pectin components
High clarification requirements, which must meet export standards
Flow rate is 12m³/h
Solution
Recommended horizontal screw centrifuge LW355×1500, using 304 stainless steel contact surface, setting low differential speed operation parameters to ensure clarification effect and juice activity.
Application results
The turbidity of the juice is reduced by 90%, and it can directly enter the concentration section
The separation speed is 10 times higher than that of the sedimentation method
No need to add flocculants, reducing costs
CIP cleaning design is convenient and fast
Case of solid-liquid separation of Chinese medicine extract
A well-known Chinese patent medicine manufacturer needs to separate the extracted liquid into solids and liquids, retaining the active ingredients while removing the insoluble residues.
Working parameters
Chinese medicine extract, containing plant fibers and particles
Temperature 50~60℃
Solid content about 5%
Configuration plan
LW355 three-phase horizontal screw centrifuge is selected, with a specially customized 304+316L contact part and a low shear design to avoid damage to active ingredients.
Operation results
High clarity of the clear liquid, no obvious impurities
Maintain stable content of active ingredients
As a professional decanter centrifuge manufacturer in China, we are not only committed to providing customers with high-performance and high-reliability equipment products, but also attach more importance to field conditions adaptation and one-stop technical support services. We will continue to deepen the solid-liquid separation technology, continuously improve the level of product intelligence, energy saving and customization, and help more industries achieve efficient, safe and green production.
If you are also looking for a reliable decanter centrifuge solution, please contact us for free material testing, selection consultation and prototype trial services. We look forward to working with you to create excellence!
