Conical Vacuum Dryer / Conical Screw Dryer / Nauta Dryer
Nauta dryer is a kind of conical vacuum dryer, there is an agitator inside the cylinder to stir the raw material, which could reach GMP standard, is widely used for pharmaceutical, biological, chemical and food industries. And it is suitable for drying and concentrating liquid, filter cake, powder and particle material.
The thermal energy needed for drying is introduced into the product through a heated jacket that can be heated by various media including steam, hot oil and water. The jacket provides rapid distribution of heat into the product in combination with efficient mixing.
The vacuum inside the dryer allows vapor to be removed at low temperatures, which makes the conical screw vacuum dryer ideal for drying heat-sensitive products. The vapors are removed through a dust filter fitted on top of the vessel. This then prevents the dust from penetrating into the vacuum system.
The conical screw vacuum dryer is fitted with a condenser with a receptacle for recovering solvents. This condenser can be installed before the vacuum pump, or after it, depending on the characteristics of the solvents.
The moisture content of the product can be controlled by monitoring the weight of condensate or using the Vortex sampler for taking samples from the product inside the dryer under vacuum.
Vortex conical dryers are designed for vacuum drying of solid based materials, but can be used in a wide range of other applications requiring thermal processing or vacuum treatment of solids, such as:
Chemical reactions: alkalisation, solid-gas reactions
Crystallisation
Wet agglomeration and granulation of solids
Sterilisation of products
Homogenising under vacuum
Cooling of solids and liquids
De-aeration of pastes and liquids
- Capacity range from 100-30000L
- Mild Steel/Stainless Steel construction
- Two Screws or Single Screw
- Conical Vessel
- Normal Temperature and Pressure inside mixer
- Gear Reducer Motor or Cycloid Reducer
- Oil Seal
- Pneumatic Outlet Valve
- Mixing and drying combine in one machine, improve production efficiency
- Separate jacket for heating, reduce energy consumption
- Vacuum type could assure heat and mass transfer, especially suit for thermal sensitive material
- The structure is simple, easy to clean, convenient for discharging, and meet GMP standard
- Ribbon and Screw agitator are available for option
- This Conical Dryer is also available for cooling, reacting or sterilization
| Model No. |
Nominal Volume |
Working Volume |
Speed (RPM) |
Motor Power |
| CM-0.1 |
100L |
40-60L |
3rpm (orbit)
118rpm (screw) |
1.5KW |
| CM-0.3 |
300L |
120-180L |
3rpm (orbit)
118rpm (screw) |
2.2KW |
| CM-0.5 |
500L |
200-300L |
3rpm (orbit)
118rpm (screw) |
3KW |
| CM-1 |
1000L |
400-600L |
2.2rpm (shaft)
80rpm (chopper) |
4KW |
| CM-1.5 |
1500L |
600-900L |
2.2rpm (shaft)
80rpm (chopper) |
5.5KW |
| CM-2 |
2000L |
800-1200L |
2.2rpm (shaft)
80rpm (chopper) |
7.5KW |
| CM-3 |
3000L |
1200-1800L |
2.2rpm (shaft)
80rpm (chopper) |
7.5KW |
| CM-4 |
4000L |
1600-2400L |
1.5rpm (shaft)
75rpm (chopper) |
11KW |
| CM-6 |
6000L |
2400-3600L |
1.5rpm (shaft)
75rpm (chopper) |
15KW |
| CM-8 |
8000L |
3200-4800L |
1.5rpm (shaft)
65rpm (chopper) |
22KW
4KW |
| CM-10 |
10000L |
4000-6000L |
1.5rpm (shaft)
65rpm (chopper) |
22KW
4KW |
| CM-12 |
12000L |
4800-7200L |
1.5rpm (shaft)
65rpm (chopper) |
30KW
4KW |
| CM-15 |
15000L |
6000-9000L |
1.5rpm (shaft)
65rpm (chopper) |
30KW
4KW |
| CM-20 |
20000L |
8000-12000L |
1rpm (shaft)
45rpm (chopper) |
37KW
5.5KW |
