Filter cloth turntable filter is mainly used for cooling circulating water treatment and wastewater after advanced treatment. Used as cooling water and circulating water after filtering: Inlet water quality SS≤80mg / L, Outlet water quality SS≤10mg / L. Used for advanced sewage treatment, set in conventional activated sludge method, extended aeration method, After the SBR system, oxidation ditch system, trickling filter system, and oxidation pond system, it can be used in the following areas: ①removal of total suspended solids ②removal of phosphorus in combination with dosing agents ③removal of heavy metals, etc. It is especially suitable for upgrading the existing sewage treatment plant, which can make the effluent from level B to level A.
Chongqing wastewater treatment principle
After the raw water enters the filter, under the effect of gravity pressure difference, it enters the filter disk through the microporous filter cloth fixed on the hollow shaft, and the solid suspended matter is trapped on the outside of the filter cloth, and the filtered liquid is collected and flowed into the hollow shaft through the filter disk. The outlet tank is discharged from the filter through the outlet weir plate. During the filtration process, the sludge is adsorbed on the outside of the filter cloth, and a sludge layer is gradually formed. With the accumulation of sludge on the filter cloth, the filtration resistance of the filter cloth increases, and the liquid level in the tank gradually increases. When the liquid level rises to the set value At the same time, the PLC turns on the suction pump and the transmission device to rotate the filter disc, the cleaning device fixed on the outside of the filter cloth rubs against the surface of the filter cloth, scrapes off and sucks off the dirt on the surface of the filter cloth, and completes the cleaning of the filter cloth. The bottom of the pond is equipped with a sludge pipe. After the time is set, the PLC automatically turns on the sludge pump to discharge the sludge settled on the bottom of the pond.
The filter cloth filter tank is mainly composed of a box body, a filter disk, a hollow shaft, a cleaning mechanism, a mud discharging mechanism, a driving mechanism, a suction pump, a valve mechanism, and an electrical control system.
1. Box: Welding and anti-corrosion treatment of carbon steel, compact structure, light weight, small footprint. It can also be made into a steel reed structure according to the site conditions.
2. Filter plate: Each filter plate is composed of 6 independent pieces and covered with filter cloth.
3. Hollow shaft: Welded from high-quality steel. The hollow tube can transport the filtered water and drive the filter disc to rotate.
4. Cleaning mechanism: It is composed of cleaning suction port, pipe, clamping device and bracket parts. For filter cloth cleaning.
5. Driving mechanism: It consists of reducer, sprocket, chain, etc., which is used to drive the hollow shaft and filter disc to rotate.
6. Mud discharge mechanism: It consists of mud suction mouth, pipe, mud suction mouth bracket and other components. Used to remove sludge from the bottom of the filter.
7. Suction pump and valve mechanism: It consists of centrifugal pump, pipeline and electric ball valve, used for cleaning and discharging mud.
8. Electrical system: It is composed of electric control box, PLC, touch screen, liquid level monitoring and other electric control components. It is used to control the process of backwashing and sludge discharge to automate its operation. The interval between backwashing and sludge discharge can be adjusted .
1. The effluent quality is good and stable.
2. Novel design and impact resistance.
3. The equipment is simple and compact, with few auxiliary equipment, and the investment in the entire filtration system is low.
4. The idle rate of the equipment is low and the total installed power is low.
5. The running filtration process is controlled by the computer, and the interval and process duration of the negative pressure suction cleaning process and the sludge discharge process can be adjusted.
6, the area is much smaller than other filters.
7. Short design and construction cycles. The filter cloth turntable filter is fully equipmentized and can be shipped as a whole. The design and construction are convenient and fast; and the expansion is easy and the installation is easy.