Cryolite drying production line

Cryolite dryer principle

Hot air from the inlet pipe with suitable jet speed from the bottom of the dryer into the mixing and crushing drying room, the material produces a strong shear, blowing floating, rotating effect, so the material is centrifugal, shear, collision, friction and be removed from the number of particles, strengthen the mass and heat transfer. At the bottom of the dryer, the larger and wetter particles are mechanically broken under the action of the stirrer, and the particles with lower moisture content and smaller granularity are entrained by the rotating airflow to rise, and are further dried in the rising process. Due to the gas-solid two-phase rotating flow, solid phase inertia is greater than the gas phase, the relative velocity between the solid gas phase is larger, strengthening the mass and heat transfer between the two phases, so the machine has high production intensity.

Features of Cryolite Dryer

A variety of charging devices for choice, continuous and stable charging, no bridging phenomenon in the middle of the process.
Special cooling device at the bottom of the dryer avoids the deterioration of materials in the high temperature zone at the bottom.
Special air pressure sealing device and bearing cooling device effectively prolong the service life of the transmission part.
Special air separation device reduces the resistance of the equipment and effectively provides the air volume of the dryer.
The drying chamber is equipped with grading ring and cyclone sheet, and the fineness and final water content of materials can be adjusted. (For example, the final moisture of calcium carbonate can be adjusted to ≤0.1%)
Compared with other drying methods, the specific gravity of material can be increased effectively.

High circumferential air velocity inside the drying chamber, short residence time of materials, effectively preventing the materials from sticking to the wall and the deterioration of heat-sensitive materials, so as to achieve high efficiency, rapidity, small equipment and large production.

Applicable materials

Inorganic: boric acid, calcium carbonate, hydroxide, copper sulphate, iron oxide, barium carbonate, antimony trioxide, all kinds of metal hydroxide, all kinds of heavy metal salts, synthetic cryolite, etc.
● Organic:Atrazine (pesticide insecticide), lauric acid septum, benzoic acid, benzoic acid, fungicidal dan, sodium oxalate, cellulose acetate, etc.
● Ceramics: kaolin, silica, clay.
● Dyes and pigments: anthraquinone, black iron oxide, indigo pigment, butyric acid, titanium hydroxide, zinc sulphide, and various intermediates of azo dyes.
● Foodstuffs: soy protein, gelatinised starch, lees, wheat sugar, wheat starch.

Project picture