What Is Gravity Thickening | Sludge Thickener


In response to the phenomenon that the sand washing wastewater in the sand washing industry is discharged randomly and seriously damages the water system of rivers, mountains, cities, and villages, Longzhong Heavy Industry has developed a rapid sewage purification equipment —- LZ Sludge Thickener after 5 years. The equipment can form a zero-emission production line with LZZG  fine sand recovery machine, tailings dry discharge machine, and chamber filter press. It is widely used in industries such as sand and gravel aggregate plants, precious metal concentrators, ceramics, and glass.

Gravity Thickening Sludge Thickener

Introduction of sludge thickener

The sludge thickener is based on the traditional vertical flow sedimentation equipment. The structure of the internal feed barrel is improved to improve the efficiency of sedimentation. The plane of the gravity thickening pool body is circular, the suspended matter settles into the cone-shaped sludge bucket at the bottom of the pool under the action of gravity, and the clarified water is discharged from the overflow weir around the upper end of the pool. The overflow port is equipped with a scum filter device and a baffle to ensure the quality of the effluent.

Gravity Thickening Sludge Thickener

The working principle of sludge thickener

Gravity thickening is solid-liquid separation equipment based on gravity sedimentation. The slurry wastewater with a solid content of 2% to 15% can be increased to a concentration of 60% to 70% slurry through gravity sedimentation. At the same time, the upper part of the tank can achieve a clear water overflow. To achieve the purpose of sewage purification and solid-liquid separation.

Gravity Thickening Sludge Thickener

The working process of sludge thickener

The wastewater of the processed material enters the central feed barrel through the material channel, and undergoes a series of effects such as slow flow and flocculation, so that the thickened underflow mud is discharged from the discharge port at the bottom of the tank, and enters the filter press equipment, and is filtered into mud cake. The upper part of the gravity thickening tank produces clean water, which can be recycled to achieve zero discharge of production wastewater.

Gravity Thickening Sludge Thickener

Product advantages of sludge thickener

1. Gravity thickening automatic cleaning, automatic mud discharge, saving labor hours.

2. Adopt the working principle of suspension filtration, media adsorption, and precipitation, no purification membrane, no wearing parts.

3. The gravity thickening tank is made of carbon steel (or stainless steel, epoxy glass fiber reinforced plastic) material, which has good strength and corrosion resistance.

4. The use cost of the agent is low, the processing capacity is large, the processing efficiency is high, and the performance is stable.

5. Gravity thickening has the advantages of small volume, small footprint, and convenient and quick installation.

6. The sludge thickener has a service life of 10-15 years, with less one-time investment and significant economic benefits.

7.The quality of the water treated by the sludge thickener can meet the discharge standard, and it can also be reused in the production line.

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