For a two-stage pusher centrifuge, what is the thickness of the material layer in mm?

When the HR400 two-stage piston-fed centrifuge is used to process sodium chloride with MVR crystallization technology, the setting of the bed thickness generally depends on the specific operating conditions and equipment design. Generally, the layer thickness can vary from a few millimeters to several dozen millimeters; the specific value depends on production efficiency, the properties of the material, and the processing capacity of the equipment. To achieve the best results and efficiency, it is recommended to consult the equipment manufacturer or refer to the equipment operation manual to obtain the recommended layer thickness for your specific application environment. If there are no specific recommended values, it may be necessary to adjust and optimize the layer thickness through experiments or production practice. .

The gap can be adjusted based on the size of the crystalline particles and the operating conditions on site

Thank you. May I ask what is the gap between the first and second drum levels?

Thank you. One more question: there is a gap between the primary and secondary drums, and material will always be present in this gap, which means there is a layer of material there. This material layer can form bridges and serve as a means of filtration and interception. Then why can’t small particle materials (100 mesh) be pushed using HR bipolar propulsion?

In a piston-fed centrifuge, the piston’s feeding stroke is generally 40–50 mm, while the length of the filtration bed ranges from 120 to 400 mm. Continuous feeding is achieved through the initial thickness of the filter cake set by the distribution disk, as well as the increased thickness of the compressed filter cake. The force generated by the movement of the piston is transmitted to the distribution disk, causing it to move back and forth; this in turn moves the filter cake across the screen, thereby enabling a continuous filtering and separation process. An excessively thin filter cake, or a filter cake layer that is not stable enough, can disrupt the pushing process, leading to equipment vibration, failure to push the material forward, and the filter cake sliding upward, thereby causing interruptions in the production process. In the general fabric stage, the design thickness of the filter cake layer is 30~120 mm, while the thickness of the compressed filter cake layer is 40~200 mm. The larger the diameter of the centrifuge drum, the thicker the filter cake layer will be.