Rotary drum microfilter technical principles and characteristics

The rotary drum microfilter is a rotary drum type screen filter. The treated wastewater enters the drum along the axial direction and flows out through the screen in a radial shape. The impurities in the water are trapped on the inner surface of the filter on the drum. When the impurities trapped on the filter are brought to the upper part by the rotary drum, they are backwashed by the pressure washing water to the slag discharge tank and flow out.

Technical principle of rotary drum microfilter

The operation of rotary drum microfilter consists of three processes: sewage inflow, filter filtration and sludge discharge, and filtered water discharge or enter the next treatment link. The sewage is pumped into the space formed between the two filter discs. After the sewage is filtered through the filter disc, the solid particles in the sewage are left on the filter. The solid particles attached to the filter roll on the surface of the filter and gradually form large agglomerates. The rolling action of the agglomerates adheres the particles on the surface of the filter to the agglomerates. When the agglomerates reach a certain size, they fall off the filter, thereby cleaning the filter. When the agglomerates between the two filter discs accumulate to a certain amount, the machine automatically discharges solid dirt due to the rotation of the filter disc.

1. The organic combination of spiral pressure and dynamic and static rings forms a new separation technology that integrates concentration and dehydration, adding a new dehydration mode option to the field of sewage treatment.

2. The continuous displacement of the dynamic and static rings can achieve the self-cleaning effect in the cylinder, and the purpose of preventing the filter gap from being blocked is achieved. It replaces the high-pressure flushing of the old generation of filter cloth and belt filter plate, and greatly saves industrial water. The low-speed operation of the main screw shaft reduces the mechanical wear of the equipment and extends the service life of the equipment.

3. The pressure regulating plate adopts elastic automatic adjustment, which naturally balances the internal pressure of the sludge in the dehydration section, and more effectively guarantees the service life of the dynamic and static ring discs.

4. The whole machine is sealed and can be directly observed. The shell is easy to disassemble and assemble, there is no sewage leakage, no secondary pollution, and the noise is ≦45 decibels, making the sludge room environment beautiful and civilized production.

5. The operation is safe and simple, according to the customer's operating time period. Combined with the automatic control system, the program can be set to achieve automatic unattended operation (should have a considerable amount of sludge).

The microfilter has the advantages of small footprint, large production capacity, and easy operation and management. It can be used for pretreatment of raw water in drinking water plants, treatment of industrial water, pretreatment and post-treatment of domestic water, and playback of useful substances in industrial wastewater.

Features of rotary drum microfilter

1. Simple structure, stable operation, convenient maintenance and long life.

2. Large filtration capacity, general wastewater fiber recovery rate is greater than 80%.

3. Small footprint, low cost, low speed operation, automatic protection, easy installation, water and electricity saving.

4. Fully automatic continuous work, no need for special personnel to watch, the recovery fiber concentration can reach more than 12%.

5. By changing the filter screen with different mesh, it can replace the concentrator and round net dehydrator.

Main advantages of rotary drum microfilter

1. Simple structure, stable operation, convenient maintenance and long life.

2. Large filtration capacity and high efficiency, general wastewater fiber recovery rate is greater than 80%.

3. Small footprint, low cost, low speed operation, automatic protection, easy installation, water and electricity saving.

4. Fully automatic continuous work, no need for special personnel to watch, the recovery fiber concentration can reach more than 12%.

5. By changing the filter screen with different mesh, it can replace the concentrator and round net dehydrator.