Structure: multiple candle filter elements are integrated inside, and the filter element is composed of skeleton and filter cloth. When a certain pressure difference is reached after filtration, after the liquid is drained, the filter cake is removed by back blowing, and the filter element can be reused.
Features: airtight operation, large filtering area, strong ability to absorb pollutants, easy back blowing of filter cake, high degree of automation.
Functions: direct filtration, precoat filtration, slurry concentration, filter cake recovery and filter cake washing.
Suitable for: high impurity content, viscous liquid materials, high precision, high temperature and other special filtering occasions, such as: activated carbon decolorizing liquid, catalyst, ultra-fine agglomerate and other occasions.
Application: petrochemical, fine chemical, oil, water treatment, titanium dioxide, electric power, pharmaceutical, food and other fields.
Full automatic, dry filter cake, back blowing and slag removal is a kind of self-cleaning and filtering equipment suitable for continuous production. It can automatically filter and remove particles in liquid or gas and form dry filter cake for discharge.
It can regenerate the filter element automatically without stopping the system. It has the characteristics of full-automatic, no shutdown, less manual cleaning, no need to replace the filter elements. It has been widely used in the continuous operation production, high-risk operation environment, and the occasions where the impurities are sticky and it is not suitable to use ordinary metal filter elements.
When the filter cake is filtered, enough particles are used to form a "bridging phenomenon" to form a certain thickness of particle layer, which is called "filter cake". This filter cake forms the main filter layer.
1. pre filtration
When the material enters the filter container, the large particles bridge the surface of the filter medium. The small particles pass through the filter medium and return to the original liquid tank.
2. Filtration process
In the pre filtration stage, the material is gradually clarified and then enters the filtration procedure. The filter cake becomes the main filter layer, and the fine particles are intercepted.
3. Filter cake drying
In the drying process of filter cake, at the same time, the gas is forced to pass through the filter cake, and the filtrate in the filter cake is discharged by the gas, so as to compress the filter cake and reduce the content of the filter cake.
4. Back blowing and slag removal
After the filter cake is cleaned and dried, each filter unit will be impacted by the counter gas. As the filter medium expands, the filter cake will crack and be pulled away from the medium, and the filter cake will be completely discharged.
◆ applicable industries: petrochemical, beverage, fine chemical industry, grease, water treatment, titanium dioxide, electric power
◆ applicable liquid types: resin, polyglycol, polybutene resin, alkyd resin, epoxy resin, beer, edible oil, syrup, seaweed glue, citric acid, gelatin, bone glue, regenerated wax, cutting oil, fuel oil, lubricating oil, machine cooling oil, transformer oil, metal foil rolling oil, etc
◆ main filtration functions: direct filtration, precoating filtration, slurry concentration, filter cake recovery and washing
◆ filtration type: direct filtration or precoating filtration, back blowing to remove filter element
| Barrel diameter(mm) | 300-2400 |
| Optional precision(μm) | 0.5-600 |
| Filter area(m²) | 2-60 |
| Shell material | 304,316L,CS |
| Applicable viscosity(cp) | 1-2000 |
| Applicable temperature(℃) | 200 |
| Design pressure(MPa) | 0.6,1.0 |
