Calzino filters
The Calzino filter is a fully automatic backpulse filter developed for filtration with filter aid and filter cloths, enablingself-cleaningoperation.
The elements have filter cloths that determine filtration properties. Particles collect on the cloth during filtration; a liquid or air backpulse removes the filter cake.
Its high efficiency, reliability, performance, ease of use and low maintenance and handling requirements have led to use across many industries.
Calzino filters are used in chemicals, food and water filtration. Typical applications include sugar processes, cheese brine, process water in galvanic/electrolytic processes and precious metal recovery.
How the Calzino filter works
How the Calzino filter works
The Calzino filter is a fully automatic backpulse filter developed for self-cleaning filtration with filter aid and filter cloths.
Filter cloths, optionally precoated with filter aid, determine filtration properties. Particles collect on the cloth; a liquid or air backpulse releases the filter cake.
The filter cake can be discharged in wet or dry form, depending on production requirements. Wet cake can be pumped away; dry cake is collected in a container via a butterfly valve.
Filter aid
Filter aids such as perlite, diatomaceous earth and bleaching earth can improve filtration accuracy and capacity.
High flow rate
Many long filter elements with a large cross-section provide a large filtration area for high flow rates.
Low wear: no moving parts
Air or liquid backpulsing blows cake off the elements. There is no mechanical cleaning and therefore no significant wear.
Easy to clean thoroughly
Thorough cleaning is particularly important for food applications.
With no dead spaces and smoothly finished edges, no cake remains after discharge.
- Wet discharge
In water filtration, water backpulses the cake off the elements and carries it away.
- Dry discharge
To minimise filter waste, the cake can be discharged as dry as possible. After emptying the filter, air dries the cake; it falls as a solid through a butterfly valve in the cone into the container below.
Calzino model table
Calzino model table
| Type | Viscosity | Capacity m3/hr | Filter area m2 |
| CAL- 3 272 | 1 | 5 | 1,02 |
| CAL-4-300 |
1 |
7 | 1,36 |
| CAL-7-400 | 1 | 12 | 2,38 |
| CAL-14-600 | 1 | 25 | 4,76 |
| CAL-23-700 | 1 | 45 | 9,52 |
| CAL-34-800 | 1 | 60 | 11,56 |
| CAL-47-900 | 1 | 75 | 16,00 |
| CAL-62-1000 | 1 | 100 | 21,08 |
| CAL-81-1200 | 1 | 130 | 27,54 |
| CAL-102-1350 | 1 | 165 | 34,68 |
| CAL-125-1500 | 1 | 200 | 42,50 |
Calzino applications
Calzino applications
FOOD
- Sugar factories: sugar juice filtration
- Cheese production: brine filtration
- Starch production
- Potato starch production
INDUSTRY
- Process water for copper electrolysis
- Process water for precious metal recovery
- Cooling water systems
