Centrifugal Sludge dewatering machine It is a commonly used Sludge dewatering equipment Its main components include drum, screw, differential system, liquid level baffle, drive system and control system. The centrifugal sludge dehydrator uses the density difference between solid and liquid phases to accelerate the settling speed of solid particles under the action of centrifugal force Solid-liquid separation 。

Sludge enters the centrifuge from the distribution hole of the hollow shaft and is separated by the centrifugal force generated by the high-speed rotation of the drum. The auger rotates in the same direction as the drum, but at a slightly slower speed. The speed difference between the two can send the dewatered sludge out of the centrifuge, and the separation liquid is discharged from the other end. Centrifugal dewatering can be carried out continuously.

The principle of centrifugal separation is the centrifugal force generated when the object rotates at high speed. Each particle in the centrifugal force field will suffer centrifugal force many times greater than its own gravity. The magnitude of centrifugal force depends on the mass of the particle. As there are sludge with a specific gravity greater than 1, water with a specific gravity equal to 1, and a small amount of dirty oil with a specific gravity less than 1 in the water containing sludge, under the action of centrifugal force, the centrifugal force on these materials is also different. The sludge with large mass is thrown to the outside of the water, and then separated by necessary means, so that oily sludge The water and dirty oil in the sludge are removed, greatly reducing the sludge volume.

The operating principle of the rotary centrifuge is that the sludge enters the centrifuge from the distribution hole of the hollow shaft and is separated by the centrifugal force generated by the high-speed rotation of the rotary drum. The auger rotates in the same direction as the drum, but at a slightly slower speed. The speed difference between the two can send the dewatered sludge out of the centrifuge, and the separation liquid is discharged from the other end. Centrifugal dewatering can be carried out continuously.

The technical process includes that the oily sludge generated in the sewage disposal site will first be settled and dewatered in the three residue tank, the thickened oily sludge will be pumped into the sludge thickening tank for further settlement and dehydration, and the dewatered sludge will be transported by the screw pump to the centrifuge for further dehydration and separation. The liquid (centrifugal liquid) returns to the three slag tank, the centrifuge discharge (solid) is transported to the sludge storage yard, and the sludge is dried and transported to the waste slag pit.

Questions include:

1. The outlet is often blocked, which affects the separation result;

2. With polyaluminum as flocculant, there is almost no flocculation effect on sludge with scum accounting for 60% - 80%;

3. When polyacrylamide is used as flocculant, the result of dissolving agent preparation is poor, and the effect of flocculant cannot be exerted;

4. Do not understand the characteristics of polyacrylamide, and do not play the best role of this flocculant.

The above problems need to be improved and optimized, such as:

1. Regularly clean the discharge outlet to prevent blockage;

2. Select more suitable flocculant or adjust the ratio of flocculant;

3. Optimize the dissolving system to ensure the full dissolution of flocculant;

4. Deeply understand the characteristics of polyacrylamide, and adjust the use method and proportion.

Through the above improvement and optimization measures, it is expected to improve the separation effect and operation stability of the centrifugal sludge dehydrator.

Zhejiang Zhengda Environmental Protection Equipment Co., Ltd.: focusing on Horizontal spiral sedimentation centrifuge, sludge dewatering machine, sludge treatment equipment, centrifugal dewatering machine, sludge dewatering equipment, solid-liquid separation equipment, horizontal spiral centrifuge, centrifuge, mud dewatering machine, mud dewatering equipment, mud treatment equipment, horizontal centrifuge, solid-liquid separator Production, sales and service of various solid-liquid separation equipment. Welcome new and old customers to come for consultation and investigation.

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