1. summarization
Ceramic Filter is a new generation of energy efficient solid-liquid separation machinery, it’s basic principles is similar to the disc vacuum filter, the key difference is that it uses Pupil ceramic filter plate as filter media, because of capillary forces, only water can filter plate in filtering process, and the air is always being passed, so they have excellent energy efficient performance, in comparison with the traditional disc filter, more than 80% energy is saved. At the same time, it also has low moisture content filtering materials, perforated small, acid-proof, decay characteristics, and the use of automation, low labor intensity, safety, clean working environment. Ceramic filter can be widely used in metal mines, coal, chemicals, pesticides, pharmaceutical and other industries dehydration treatment, the application has a broad range of areas.
2. characteristic
(1) energy efficiency: ability to handle large, power-saving effect. Ability to deal with> ＞1100kg/m2.h, electricity ＜0.5Wh/t.h, in comparison with the traditional disc filter, more than 80% energy is saved
(2) Automatic control: high-performance models using the procedure of automatic control, automatic choice of materials, self-cleaning, reducing the intensity involved in the operation can reduce the number of operators.
(3) complete automatic protection function: automatic alarm system with failures, fault-screen display, high and low liquid level alarm display and automatically shuts down the artificial exclusion or treatment.
(4) the firm structure: The machine adopts the computer optimized design, reasonable structure, reliable work, mainly the use of maintenance-free design of transmission components, reducing downtime rate, rake body trough the use of stainless steel structure, to ensure that their service life up to 10 years above.
(5) improve product quality, lower transportation costs: because of filtering water concentrates after treatment is very low, can greatly enhance the market competitiveness of products and reduce transit transport costs and wear and tear.
(6) clear environmental effects: because of the clear filtrate can be repeatedly used to reduce emissions, cleaner production in line with the current general trend of environmental protection.
3.the principle of the structure:
Ceramic filter’s structure include: the rotor disc equipped with a ceramic filter plate number of groups formed, auto-switch resulting in coupling phenomenon,the solid mixers to prevent of solid deposition, the elimination of filter plate by adsorption of solid scraper needed to filter out the internal abdominal cavity plate washing and cleaning of ultrasonic oscillation system, maintain a certain level of the trough of slurry and process control systems running.
When filter operation, because of the role of vacuum, the rotating submerged in liquid and slurry tank under the filter plate so that a layer of solid particles formed on the surface layer ,liquid through the filter plate from the distribution of the first switch into the vacuum barrels.
When the smoke layer has to leave the filter plate liquid slurry filter cake formation, because of dehydration the role of the vacuum to continue so that further drying cake.
the rotor continue to rotate with blade to the site, so that filter cake removed from the belt drive transmission to the required place.
After the filter cake discharge position of board operation get autotransformer vacuum switch with the opposite flow of flushing position, the formation of the internal field from the filter plate of the washing effect, clear the blockage in ceramic pore within the particle. Then re-immersed in slurry.
When the filter is running after a longer period of time, it can be carried out on the filter plate full flushing, the use of reverse-flushing fluid can be added to the chemical agent, together with ultrasonic oscillation in order to maintain efficient operation of the filter.
Schematic diagram of the process can be expressed:
|
