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.

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

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.

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