Features

• The biconical or double cone dryer is named for its characteristic shape of two cones connected to a short straight wall and dries the contents via a heating jacket. This assembly is mounted at the tips of the cones using bearings each resting on support piers. The product to be dried and the heating fluid enter into the vessel and jacket respectively though access points on either side through the rotary joints.
   
  The unit rotation is controlled via a drive and motor on one side while vapor supply and condensate drainage of the fluid in the jacket are on the other. A vacuum suction pipe passes through the feed side of the rotary seal system and typically contains a sensor to measuring the internal process temperature of the unit.  
  
  Unit capacities

  • 66gal - 3,300gal (250L to 12,500L)

  
  Mechanical seal types available

  • Dry single seal

  • Lubricated dual seal

  • Dry dual seal 

  • Packing gland

  • Other special types upon request

  
  Design Data

  • Pressure          : FV/87psig

  • Temperature      : -13°F to +392°F (-25°C to +200°C)

  
  Design Codes

  • ASME VIII Div. 1 with U-Stamp

  • CRN and SQL as required.

  • Also available: CE stamp/PED 97/23/EC module G cat.IV VSR/AD-Merkblätter

  
  Glass-Lining

  • Vessel G2208 dark blue, light-blue or white

  • Sigma glass anti-static electrically conductive glass in blue to reduce static that can build up in the drying process

  • Phi glass thermally conductive glass in medium blue to increase thermal transfer rates through the glass.

  
  Test and inspection of the glass-lining to DIN 28063

  • Visual inspection

  • Thickness testing

  • Statiflux (electrified particle test)

  • Spark test to ISO 2746 for vessels 30.000V after glass-lining and again at 12.000V prior to shipment.

Options

Full seal-welded sheathing/insulation
Fiber/Rockwool insulation
Foamglas insulation available
304 or 316 stainless steel cladding:

• External satin finish (180 grit)

• High polish finish

Manway Cover 

• 304 stainless steel

• Glass-lined 304 stainless steel

• Other MOC and glass-lined MOC available.

Easy Opening Port
Quick opening hinged 4" sight glass installed on the manway that closes using 4 hand-tightened bolts.

Lump breakers
For future installation of two lump breakers:

• Install special support arm for electrical passage

• Electrical power rotating distributor

• 2 additional shell nozzles.

Primary installation

• Unit supplied with one multiblade lump breaker

• 4hp (3kW) motor with speed reduction stage via  a gear box

• Mechanical wet seals and seal pot with internal cooling coil for barrier fluid.

• Wetted parts in Hastelloy C22

    
Through-the-Wall Design in Stainless Steel (to separate clean room from machine operating side components)

Discharge Valve 
An 8" manual wafer butterfly valve supplied as a discharge nozzle. The body is PTFE lined cast iron, the disc in Hastelloy C. The outlet connection is tri-clamp style 8"/DN200 in 316L.

Sampling Valve
Supplied with an Alloy C22 dip pipe, PFA-lined cast iron ball valve and a GL45 glass bottle with 100ml volume.

Temperature Transmitter
A 2xPt100 and a 4-20mA Hart transmitter is supplied for internal vessel temperature detection.

Pressure Transmitter
An internal pressure transmitter with Hart communication is supplied.

Personnel Safety
For personnel safety a key interlock system has been implemented. The operator can access the unit (rounding area, manway, sight glass) only by using the key box system. Each key can be released only if all movements are stopped and power interrupted. This system includes an electric power cut off switch that must be wired between the power source and motors.

Docking System for Automatic Filling & Discharge
For automatic filling and discharge operations, we offer a split valve based system.. To charge, a telescopic system with 75mm stroke connects the active (alpha) part of a split valve to the passive (beta) part mounted onto the dryer. When the two parts are connected, the valve can be opened like a butterfly valve to charge the dryer. This system must be operated at ambient pressure and at max 80°C.  System is operated with a pneumatic butterfly valve between the passive part and the internal of the dryer. The docking system is in stainless steel 316L. The same assembly is used for discharge.