Bag filter filter impurities can be divided into many kinds, and different bag filters have different cleaning methods. Shanghai Jiuching introduces the cleaning methods of multi-linked backwashing bag filter, dirt-absorbing bag filter and rotary arm bag filter.

When the pressure difference between the outlet and the population reaches a certain value, backwashing is carried out at this time, and the special three-way valves at the top and bottom act to close the population inlet flow and connect the drainage pipe; close the outlet flow and connect the backwashing flow. The backwashing water passes through the screen from outside to inside, flushing out the filter slag and discharging it through the drainage pipe.

The suction type bag filter is to suck the dirt from the surface of the screen by the suction nozzle inside the screen. When self-cleaning, the drain valve is opened and the suction nozzle is connected to the drain pipe, and the pressure difference between the drain pipe and the outside world makes the suction nozzle produce strong suction force. Suction bag filter with the following characteristics: compact size; reliable mechanical structure; flushing flow rate requirements, low pressure of the screen can still ensure the cleaning effect; self-cleaning process requires less water, and does not cause a cut-off of the downstream fluid supply. It is connected in series with two screens of coarse and fine filtration, the suction nozzle is round mouth type, and the suction dirt sucker is driven by a two-way motor with a filament device, which makes a spiral movement according to a fixed speed.

The rotary arm bag filter is a type of multi-unit backwashing bag filter with compact structure. The sewage is filtered as it passes through the screen from inside to outside. When the pressure difference between import and export reaches the set value, backwashing is carried out. The gear motor rotates the rotating arm to the bottom of the filter cylinder to be cleaned in turn, cutting off the incoming flow and opening the drain valve, at which time the pressure drop is generated between the outside and the inside of the screen, and the filtrate reverses its activity for backwashing, and once the set time value for backwashing is passed, the drain valve is closed for backwashing of the next screen.

Bag filter application effect.

1、Filter sand, or other fine particles in well water, drinking water, river water, sea water, engineering water, etc. At the same time, it can also be used in conjunction to kill bacteria in water.

2、It is also widely used in the chemical industry, which can filter out impurities in resin, paints, inks, adhesives, coatings, lubricants, acid and salty solvents, detergents, etc. There are also impurities in the cosmetic industry, textile industry, and electronic industry that can be filtered.

3, electrophoresis degreasing filtration in the automotive industry, pre-filtration of ultrafiltration, etc., and impurity filtration of edible oil, soy sauce, vinegar, wine, steam beer, etc. in the food and beverage industry.

Ltd. not only produces bag filters, self-cleaning filters, basket filters, backwashing filters and magnetic filters, etc. We welcome your inquiries.