Double Cone Dryer-1
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Double Cone Dryer

The middle of the dryer tank is cylindrical, both ends are conical, and the top of the cone is equipped with a feed port and a discharge port. The tank is divided into three layers, and the main body is a drum with a jacket.

This double cone rotary vacuum dryer is commonly applied in the drying of powder and granular materials in the chemical, pharmaceutical, food, dye, powder metallurgy, and other industries.

The heating medium can be steam or circulating hot water, the insulation layer is an aluminum silicate, and the dryer consumes very little energy.

What is Double Cone Dryer

Put the material in the inner layer and rotate and dry under vacuum. The material obtains heat by turning and accelerating movement along the wall of the vessel, which can avoid the phenomenon of surface yellowing of heat-sensitive materials during the drying process. This rotocone vacuum dryer greatly shortens the drying time of materials, which is only about 2/3 of the drying time of similar materials in the vacuum oven, which improves labor productivity. 

Our double cone dryers and mixers are especially suitable for drying easily oxidized, flammable and explosive materials and heat-sensitive materials. In the material drying process that strictly restricts the influence of metal ions on the finished product and the materials that require the discharge of volatiles (or toxic substances) to be recycled (or destroy the toxicity), it can even show the superiority of our drying unit.

Double Cone Dryer Working Process

The design of the double cone dryer combines the drying and mixing functions in a simple and stable device. This concept provides a simple solution to many drying and mixing requirements.

The drying of the drum heats the jacket while heating the vacuum. By applying the vacuum, the boiling point of the liquid component is reduced, and at the same time, it provides a uniform drying effect for the particles in contact with the container wall. The heating of the jacket is usually done with hot oil, but steam or circulating hot water is available, too.

The raw materials are filled into batches and indirectly heated, and the cone assembly is rotated at the same time. The conical shape of the rotary cone vacuum dryer ensures the effective circulation of the hot liquid heating medium. Drying occurs when heat flows through the outer cone, and a vacuum is applied in the inner cone. The drying operation is based on the principle that water or other volatile gases move from a low-pressure area to a high-pressure area. The double cone mixer drying process is mainly achieved by heating in a vacuum or purging the material to be dried with air/nitrogen flow to increase the vapor pressure. Therefore, the basic conditions for effective drying are achieved by uniformly transferring heat throughout the batch and quickly removing steam.

Features of Double Cone Dryer

The double cone vacuum dryer is a new type of dryer that integrates mixing and drying. It combines a steam heat source, a vacuum pump, and a dryer to form a whole set of vacuum drying device (if solvent recovery is not required, the condenser can be saved). This machine has an advanced design, all materials can be discharged, easy to clean, easy to operate, and reduce labor intensity.

Both ends of the cylinder are sealed with advanced rotary joint nodular cast iron, which has changed the bad phenomenon that the filling seal is easy to wear out and leaks vacuum and water. At the same time, it is very flexible to adjust the concentricity of the drying equipment.

The installation height of the liftable transmission motor. Because this double cone blender machine is designed with a motor movable support, it can ensure that the best tension of the belt can be adjusted by adjusting the motor movable support when the belt is deformed or loose after long-term operation.

The output sprocket and drive sprocket of the reducer adopt single-row transmission, and the chain adjustment mechanism is designed to ensure tight chain matching. Avoid the phenomenon of sliding of the tank body when the chain is loose and the phenomenon of large torsion on the shaft that may damage the double cone mixer equipment.

The double cone rotary vacuum dryer starts smoothly, and the motor current is not too large, which prolongs the equipment's life.

The clean feed manhole cover is adopted, which not only guarantees convenient switching but also ensures a clean and flat seal; the manhole cover and the barrel are sealed with temperature and pressure-resistant silicone rubber; the discharge port is controlled by a butterfly valve.

When the rotocone vacuum dryer is rotating, the internal materials are constantly flipped up and down, so that the materials are constantly renewing the surface in contact with the wall, so as to make full use of the heat conducted by the wall, and it can work under vacuum conditions. The lower temperature vaporizes quickly to achieve the purpose of the rapid drying of the material.

Dryer body: The inner liner of the rotary cone vacuum dryer is 304; the jacket is made of Q235 carbon steel δ 6mm; the heat preservation shell is made of δ 1.2mm304. The inner tank adopts a circular arc head transition, which is easy to clean during the drying process, and at the same time, the cylinder body is evenly compressed.

Frame: It is welded by section steel and steel plate. After the cylinder body is connected with the left and right shafts, it is supported on the frame by two double row radial spherical roller bearings. The surface of the frame is made of δ 1.2mm stainless steel.
 

Model

YZG-600

YZG-800

YZG-1000

YZG-1400A

FZG-10

FZG-15

FZG-20

Inner Size(mm)

φ600×976

φ800×1247

φ1000×1527

φ1400×2054

1500×1060×1220

1500×1400×1220

1500×1800×1220

Outer Size(mm)

1135×8101020

1700×10451335

1693×1190x1500

2380×1675×1920

1924×1720×1513

1513×1924×2060

1924×2500× 1513

Drying Rack Layers

4

4

6

8

5

8

12

Interval(mm)

81

82

102

102

122

122

122

Tray Size(mm)

310×600×45

520×410×45

520×410×45

460×640×45

460×640

×45

460×640

×45

460×640

×45

Tray Qty

4

8

12

32

20

32

48

Working pressure inside the baking pipe (MPa)

≤0.784

≤0.784

≤0.784

≤0.784

≤0.784

≤0.784

≤0.784

Temperature of baking support(℃)

35-150

35-150

35-150

35-150

35-150

35-150

35-150

Vacuum degree inside the no-load chamber(MPa)

-0.1

-0.1

-0.1

-0.1

-0.1

-0.1

0.1

With -0.1Mpa and heating temperature 110℃, water evaporation(kg/m2·hr)

7.2

7.2

7.2

7.2

7.2

7.2

7.2

Vacuum pump model with condenser (kw)

2X-15A 2KW

2X-30A 3KW

2X-30A 3KW

2X-70A 5.5KW

2X-70A 5.5KW

2X-70A 5.5KW

2X-90A 2KW

Vacuum pump model without condenser (kw)

SZ-0.5 1.5KW

SZ-1 2.2KW

SZ-1 2.2KW

SZ-1      2.2KW

SZ-2 4KW

SZ-2 4KW

SZ-2 5.5KW

Weight(kg)

250

600

800

1400

1400

2100

3200

Why Choose Telang Double Cone Dryer

1. The heating medium can be steam or circulating hot water, and the insulation layer is aluminum silicate, which consumes very little energy.
2. The material is putted into the inner layer and revolved and dried under vacuum conditions. 
3. The material gets heated through the wall of the device while tumbling and drying, so as to avoid the phenomenon of yellowing of the surface of the heat-sensitive material during drying.
4. Greatly shorten the drying time of the material, which is about 2/3 of the drying time of similar materials in the vacuum oven , improving labor productivity. 
5. It is especially suitable for the drying of easily oxidized, flammable, and explosive materials and heat-sensitive materials. 
6. And the volatiles (or toxic substances) could be recycled if needed.

Typical Applications

Fine Chemical And Pharmaceutical: 
Antibiotics, API’s, Aroma, Biotechnology, Caffeine, Colorants, Cosmetics, Crystals, Deontological resins, Diet food, Food additives, Peptides, Pharmaceutical Excipients, Pharmacy Synthesis, Preservatives, Saccharine, Sweeteners, Tables (drying), Vitamins, etc.

Chemical: 
Catalysts, Colorants, Metallic powders, Pellets, Plastics and Pellets, Polymers.

Food: 
Additives, Flavors and Aromas, Lyophilized, Vitamin complements.
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