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Domestic tubular centrifuge technology still has a lot of room for improvement

2019-11-22 16:44:17
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Domestic tubular centrifuge technology began to develop after the founding of the people's Republic of China. In 1954, domestic research and development of a practical centrifuge, which marks the beginning of domestic centrifuge technology. However, the real development is that until after the reform and opening up, China began to attach importance to a series of work such as industrial development and production technology in line with the international standards, and began to vigorously introduce foreign centrifuge technology. At that time, the "Seventh Five Year Plan" included the technical reform and research and development of centrifuge technology into the key scientific research projects in China. Over the past 30 years, through the unremitting efforts of domestic centrifuge manufacturers, the production technology of tubular centrifuge in China has undergone transformation after transformation, and has gradually formed a mature product system, and generally has the strength of independent R & D and innovation. From the current development point of view, the development trend is very good. However, compared with foreign high-end tubular centrifuges, China's centrifugal equipment technology still has a lot of room for improvement.

With the continuous development of China's national economy, energy conservation and environmental protection has become a key word in industrial production. China has been committed to changing the traditional extensive industrial production mode and realizing a sound and fast economic growth mode. Good separation effect, low vibration and low noise become the future problems of centrifuge industry in China. With the support of national policy and the continuous efforts of the majority of centrifuge enterprises, it is believed that the development space of China's centrifuge industry will be greatly improved.

The rotating head and shaft of tubular centrifuge are damaged. If abnormal phenomena such as abnormal noise and vibration are found during centrifugation, the machine shall be shut down for inspection immediately, and the operation shall not be continued until the cause is found out.

The suspended sample flows into the centrifugal cell from the center of the rotor body at a certain speed. Due to the different weight of the components in the solution, under the action of centrifugal force field, the heavy particles have large inertial centrifugal force and settle quickly. When the flow rate increases (decreases) to a certain value, the heavy particles will stay at the bottom of the outer edge of the centrifugal cell, and the medium will flow out from the outlet and take away the lighter particles The components are washed out of the centrifugal pool or left in the rotor body.

Due to the small output force, tubular centrifuge is gradually fading out, but its high separation efficiency is the fundamental factor supporting its existence; disc separator is playing a leading role in a wide range of fields with its processing capacity and moderate separation factor. Disc centrifuges are divided into horizontal disc centrifuges and vertical disc centrifuges. Centrifugal force can force these particles to overcome the diffusion and produce sedimentation movement.

High speed centrifugal separator with tubular drum. Its drum is small in diameter, long in length and high in speed. It is used to treat the components in low concentration suspension and emulsion which are difficult to separate. The drum is supported by a slender shaft and driven by the upper end. The lower end of the drum is equipped with a damping device to reduce the vibration during starting and stopping. When the drum reaches the working speed, the center of gravity of the drum is far lower than the fulcrum of the shaft, so it can automatically center and work stably.

Tubular centrifuge


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