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The working principle and equipment advantages of flash dryer

Source: 本站 | Date of issue: 2020-07-21 09:42:14 | Views: 98322

Abstract:

working principleThe hot air enters the annulus at the bottom of the drying chamber in a tangential direction from the inlet pipe and rises spirally. At the same time, the material is added into the tower by the feeder and fully heat exchanged with th…

working principle
The hot air enters the annulus at the bottom of the drying chamber in a tangential direction from the inlet pipe and rises spirally. At the same time, the material is added into the tower by the feeder and fully heat exchanged with the hot air. The larger and wetter material is in the agitator Under the action of mechanical crushing, materials with lower moisture content and smaller particle size rise together with the rotating air flow, and are transported to the separator for gas-solid separation, and the finished product is collected and packaged. The exhaust gas is emptied after being processed by the dust removal device.

Equipment advantages

1 High circumferential air velocity in the drying chamber and short material residence time, which can effectively prevent materials from sticking to the wall and deterioration of heat-sensitive materials, and can be dried into uniform powder products at one time, eliminating the need for crushing and screening processes.

2 The drying chamber is equipped with a grading ring and a swirl plate, and the fineness of the material and the final moisture are adjustable. The special air distribution device reduces the equipment resistance and effectively improves the drying uniformity of the material.

3 The bottom of the dryer is equipped with a special cooling device and air pressure sealing device to avoid the deterioration of the material in the high temperature area at the bottom.

4 It can effectively control the final moisture and fineness. Through the adjustment of the feeding, hot air temperature, and classifier, the moisture content and fineness of the product are uniform and consistent.

Applicable materials

Paste, mud, filter cake and other materials, plate and frame filter press or centrifuge dewatering materials. Such as:

1 Inorganic: boric acid, calcium carbonate, hydroxide, copper sulfate, iron oxide, barium carbonate, antimony trioxide, various metal hydroxides, various heavy metal salts, synthetic cryolite, etc.;

2 Organic matter: Atrazine (pesticides), lauric acid, benzoic acid, benzoic acid, bactericide, sodium oxalate, cellulose acetate, etc.;

3 Ceramics: kaolin, silicon trioxide, clay, etc.;

4 Dyestuffs: anthraquinone, black iron oxide, indigo pigment, butyric acid, titanium hydroxide, zinc sulfide, various azo dye intermediates.

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