The candle filter has the characteristics of pre-coating, atomized spray residual treatment, filter cake layer material filtering, and material thickening when used. It is a new type of fully automatic filter that can be composed of a variety of working methods. The single machine integrates multiple pipe filter elements. After filtration reaches a certain pressure difference, after the liquid is evacuated, the filter cake is defluxed and the filter element can be reused.
The candle filter is applicable to many applications, such as wide application, closed operation, multi-function, large filter area, strong dirt holding capacity, easy to blow back cake, etc., suitable for high impurity content, high precision, high viscosity, high temperature, strong acid and alkali And other special filtering occasions.
Candle filter in the actual conditions, usually two filters in parallel to form a system, one with a prepared, continuous filtration, PLC control, automatic pre-coating, filtration, slag, cleaning and other procedures. Multiple TF filters can be integrated into one large filter system.
The five functions of the candle filter
1. Direct Filtration: A variety of high-performance precision filter elements with different characteristics are installed to enable fine filtration directly. Filter cakes formed with foreign particles are filtered more finely, and filter cakes are excellent in peeling performance. The highest precision is 0.2 micron.
2. Pre-coating filtration: filter cake surface is pre-coated with filter aids such as diatomaceous earth and perlite to form a cake layer, and the filter cake layer is used as a filter medium for filtration, which can achieve a clarifying level of filtration effect and high filtration accuracy. Significantly improve the product brightness, and has the outstanding advantages of operating cost economy.
3. Filter cake recovery: With large filter area and excellent filter cake peelability, it can recover a large number of high-value filter cakes from high solid content liquids at once, such as adding dry design, it can also get the moisture content less than 20%. Filter cake.
4. Slurry concentration: It is possible to cyclically filter and re-flush the filter element after it is recycled, and continue to increase the concentration of the particulate material in the filter. After reaching a certain concentration, the slurry can be recycled. Discharge and reuse.
5. Filter cake washing: The filter cake can be washed several times directly in the filter, and can be added into the drying design to realize the integration of filtration, washing, drying, and unloading operations, reduce investment, shorten the process flow, and save energy consumption. .