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Zhejiang yulight Technology Co., Ltd

Mobile: 13801708446 (manager Wang)

Tel: 0573-83589508

Fax: 0573-83588159

Address: Building 5, No. 555, Xinzhu Middle Road, Xinfeng Town, Nanhu District, Jiaxing City, Zhejiang Province

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Horizontal screw discharge settling centrifuge

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Horizontal two-stage piston pusher centrifuge

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Horizontal two-stage piston pusher centrifuge

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Horizontal screw discharge filter centrifuge


Horizontal spiral discharge settling centrifuge adopts centrifugal settling method

2020-02-18 15:25:00
Times

The discharge centrifuge of horizontal spiral centrifuge is mainly composed of high-speed drum, screw differential with the same rotation direction as the drum slightly higher lower rotation speed than the drum.

When the separated suspension enters the centrifuge drum, the high-speed rotating drum has strong centrifugal force to settle the solid particles with higher density than the liquid phase into the inner wall of the drum. Because the rotating speeds of the screw the drum are different, they have relative motion (i.e. speed difference). The relative motion of the screw the drum is used to push the solid deposited on the inner wall of the drum to the small end outlet of the drum The separated clear liquid is discharged the other end of the centrifuge.

The function of differential (Gearbox) is to make a certain speed difference between drum screw. Centrifugal settlement is to add the mixture of solid liquid into the cylindrical ( tapered) rotor. Because of the centrifugal force, the solid settles in the liquid. After the settlement, the material is further squeezed by the centrifugal force to extrude the water in between, so as to achieve the purpose of separating the solid liquid. There is a difference between the centrifugal settlement the settlement under gravity: in the gravitational settlement, the acceleration of material settlement is equal to the acceleration of gravity, which is a constant value; in the centrifugal settlement, the centrifugal force depends on the radius of rotation of particle movement, so when the angular velocity is equal, the particles moving on different radius of rotation are the same.

Because PTA slurry entering crystallization process after hydrogenation belongs to heterogeneous system, separation of PTA slurry should be completed. It is necessary to make the relative motion of the dispersed phase the continuous phase attack according to the different exercise methods. It can be roughly divided into two methods: sedimentation filtration. The equipment is completed by centrifugal sedimentation.

Temperature is a sensitive variable that affects the content of Pt acid in the product, because at this time, the operating temperature is close to the temperature of acid saturated solubility, the lower the temperature is, the higher the rate of Pt acid crystallization is compared with that of TA crystallization, so the pressure centrifuge is required to maintain the same temperature pressure for the balanced system, to ensure the complete dissolution of acid. In order to achieve the balance of the system, the product quality will be affected by the increase of Pt acid precipitation due to the low temperature.

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