Bag filter Treat coal chemical wastewater. The bag filter overcomes the technical difficulties of traditional sewage treatment technology. Effective pollution control methods have attracted the focus of various companies.

Bag filters are widely used in the treatment of various difficult industrial wastewaters such as chemical industry, metallurgy, papermaking, electroplating and so on. The bag filter is composed of a shell, a multi-element filter element, a backwash mechanism, an electric control box, a reducer, an electric valve and a differential pressure controller. The reaction medium is a consumable, which is periodically replaced or added according to water quality, water volume and use environment. The device is designed and processed according to the use conditions and user needs. It can be used as a single unit or multiple units in parallel; a single unit has a water treatment capacity of 50 to 1,000 tons per day, and multiple units can be connected in parallel to achieve any scale of water treatment capacity.

Bag filter wastewater treatment equipment has high efficiency, strong stability and easy operation. It has many advantages: it can efficiently treat high ammonia nitrogen, COD and other difficult-to-treat substances in water and all heavy metals such as cadmium, arsenic, lead, and zinc; excellent water quality after treatment Compared with other standards; the investment is better than the traditional technology, the area is small; the processing cost is low.

Bag filter, that is, the suction nozzle inside the filter screen sucks the dirt on the surface of the filter screen. During self-cleaning, the drain valve is opened, and the suction nozzle is connected with the sewage pipe. The pressure difference between the sewage pipe and the outside makes the suction nozzle produce strong suction. The suction bag filter has the following characteristics: high efficiency, compact size; reliable mechanical structure; minimum flushing flow rate requirements, the cleaning effect can be guaranteed even when the filter pressure is low; the self-cleaning process requires less water and does not cause downstream Interruption of the fluid supply.

Bag-type dirt suction type bag filter, it is connected in series with two filter screens of coarse filter and fine filter. The suction nozzle is a round mouth type. The dirt suction device is driven by a two-way motor connected with a screw device at a fixed speed. Make a spiral movement (so that several suction nozzles can suck all over the inner surface of the filter).

Rotary arm bag filter is a kind of multi-unit backflushing bag filter with compact structure. Sewage is filtered through the filter from the inside out. When the pressure difference between the inlet and outlet reaches the set value, backwash is performed. The gear motor rotates the rotating arm to the filter cartridge to be cleaned (positioned by the sensor), cuts off the inlet flow, and opens the drain valve. Down, the filtrate moves in the reverse direction for backwashing. Once the set time value for backwashing is over, the drain valve is closed and the next filter screen is backwashed.

Multi-unit backwash bag filter. The filter cartridge is equipped with a cylindrical filter for filtering. When the pressure difference between the outlet and the inlet reaches a certain value, backwashing is performed at this time, and the upper and lower two special three-way valves act to close the inlet flow and connect the sewage pipe; close the outlet Flow, turn on the backwash flow. The backwash water passes through the filter from the outside to the inside to flush out the filter residue, and is discharged through the sewage pipe.