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Conical Central Shaft Dryer

Conical Central Shaft Dryer

Condry® - series TDC 25 - TDC 15000

The Condry® conical bottom agitated vacuum dryer was developed to process a wide variety of products. The machines have proven to be particularly suited for the drying of heat sensitive products and product with fragile crystal structure and thus sensitive to shear forces.

The conical bottom allows for full product discharge characteristics. Designed for frequent product changes with excellent cleanability using CIP systems, simple validation. 

The conical vessel bottom, narrow agitator to wall clearances, a special agitator blade design and the option for microwave heating makes this dryer the most versatile and efficient with a the best possible drying performance.

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Inerting

Prior to feeding wet cake or slurry into the dryer the vessel interior is inerted by a controlled displacement of the oxygen containing atmosphere with Nitrogen. This procedure prevents the potential formation of an explosive atmosphere in the vessel interior.

Filling

Afbeelding: condry filling

After inertization is completed wet filter cake from a centrifuge or Nutsche filter, or dependent upon the application slurry is fed into the dryer.

Drying

Afbeelding: condry drying

For efficient drying the dryer is typically evacuated in steps and heated up at the same time. During the drying process the product is agitated. The dryer is maintained under vacuum and at the maximum allowable temperature for the product until the final required product humidity level is reached.

Cooling

Afbeelding: condry cooling

After drying is completed the product is cooled down prior to discharging.

Discharging

Afbeelding: condry discharging

The dried and cooled product is discharged through the central discharge valve. The product is transported to the discharge valve by the agitator.

Cleaning

Afbeelding: condry cleaning

Using spray balls a cleaning fluid is sprayed onto all product wetted internal surfaces for the internal cleaning of the equipment in between individual batches or for product change over. This provides for full and efficient cleaning of the dryer interior.

Technical data

Special properties for the customer’s benefit:

  • Calculation, design and manufacture in accordance with PED 97/23/EC or/and ASME pressure vessel code, Section VIII with U-Stamp as well as in compliance with cGMP and FDA guidelines.
  • EC type examination certificate 03ATEX0245X per the 94/9/EC directive or with electrical components UL approved for operation in a Class 1, Division 1 or 2, Groups C & D environment.
  • Conical bottom for improved dry product discharge
  • Double mechanical seals, externally interchangeable, dry running contacting or non contacting lift-off type seals as well as liquid lubricated seals.
  • Sample valve


Options:

  • Openable vessel, heated agitator, machined vessel, CIP system
  • Supplemental microwave heating to reduce time required for drying.
  • Pressure proof versions, aseptic and steam sterilizable versions, DQ, IQ, OQ qualification.
  • PLC controls, autonomous or slaved to DCS, MCC

Technical data

Dryer
type
 		 Internal
Ø
mm		 Heating area, wetted
m²
 		 Nominal volume
l
 		 Agitated volume
l		 Speed
max.
1/min		 Drive
kw
TDC 25 440 0.7 25 45 110 3.0
TDC 50 550 1.1 55 95 90 4.0
TDC 100 700 1.9 110 190 70 5.5
TDC 250 875 3.0 220 380 55 7.5
TDC 400 1000 3.9 330 570 50 11
TDC 700 1150 5.2 500 860 42 15
TDC 1000 1320 6.8 750 1300 37 18.5
TDC 1500 1460 8.4 1000 1780 33 22
TDC 2100 1650 10.7 1500 2500 29 30
TDC 2700 1830 13.2 2000 3500 26 37
TDC 3500 1960 15.2 2500 4300 24 45
TDC 4200 2100 17.4 3000 5300 22 55
TDC 5500 2300 20.8 4000 7000 20 75
TDC 7000 2480 24.2 5000 8700 18 90
TDC 8500 2710 28.9 6500 11400 16 110
TDC 10000 2900 33.1 8000 14000 15 132
TDC 12000 3140 38.8 10000 17800 14 160
TDC 15000 3450 46.8 13500 23600 13 200
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Fields of application
Pharmaceutical
Pharmaceutical
Chemical
Chemical
Fine chemicals
Fine chemicals