Application
Salts, lithium carbonate, sulphates, pigments, ceramics, catalysts and mineral concentrates. We define which dryer suits your product and manufacture it, or modernise the one you already have installed.
Own manufacture: each unit is built according to the product, the capacity and the plant conditions.
The product rules: inlet moisture, particle size, abrasiveness and the temperature it tolerates define the technology.
Filter cake with surface moisture that must be dried without losing specification, in a continuous line and with strict temperature control.
Chlorides, sulphates and carbonates coming from crystallisation or centrifuges that need robust, high-capacity drying.
Products that demand constant colour and particle size: control of the air and the residence time is what sustains quality.
Atomisation of the slip to obtain spherical granules, with even moisture and good flowability for pressing.
High-value batches, where process yield and repeatability weigh more than the cost of the equipment.
Kaolin, bentonite, calcium carbonate and flotation concentrates, with handling of abrasive material and fine dust.
This is the first decision of the project and the one that moves the most money: a poorly chosen unit is paid for every day in consumption and lost production.
| Equipment | When it pays off | Typically |
|---|---|---|
| Flash dryer | Filter cakes and wet solids that break up well. Drying in seconds, small footprint. | Lithium carbonate, sulphates, pigments, starches, kaolin. |
| Rotary dryer | Coarse or abrasive products, or those that need a long residence time. Scales to high capacities. | Salts, granular minerals, fertilisers, sands. |
| Spray dryer | You start from a solution, suspension or slip and want a powder of controlled particle size. | Ceramics, pigments, catalysts, detergents, additives. |
| Falling film evaporator | A lot of water must be removed from a solution before drying, or the condensate recovered as process water. | Brines, liquors, dilute solutions, effluents. |
Do you already have an installed unit that does not reach the production you need? See equipment modernisation.
With this a serious first technical proposal can be made. Whatever is missing is measured at the pilot plant with real samples.
Mass and energy balance, technology selection, sizing and layout, with the estimated consumption per tonne of product.
Dryer or evaporator, together with fans, cyclones, bag filters, heat generation, conveying and control panels.
We support installation and commissioning, and leave the plant staff trained to operate the equipment.
The flash dryer dries in seconds, carrying the product in a stream of hot air: it is suitable for filter cakes and wet solids that break up well, and takes up little space. The rotary dryer works with long residence times inside a rotating drum: it tolerates coarse or abrasive products, or those that need a long drying time, and scales to very high capacities. Inlet moisture, particle size and abrasiveness determine which one is right.
When you start from a solution, a suspension or a slip and want a powder of controlled particle size, spherical and free-flowing: ceramics, pigments, catalysts, detergents and additives.
Yes. The construction material and thicknesses are selected according to the product, and wear zones are reinforced. It is a decision taken at the beginning of the project, together with the working temperature.
Yes, whenever a lot of water has to be removed. The evaporator removes water at a fraction of the dryer's energy cost and also allows the condensate to be recovered as process water, something decisive where water is scarce.
Quillaja extract evaporator for BASF, the German chemical company: double-effect falling film with thermocompression and recirculation, from 5 to 40 % solids.
Self-inerting spray dryer for microencapsulated sulphur: closed circuit with self-inert atmosphere (O₂ < 4 %), with no nitrogen consumption. In 2022, mass and energy balance study to increase its capacity.
With the product data and the capacity you are looking for we will reply in less than 24 business hours, with a first technical assessment and the type of dryer that fits.
