FDHK-model (100 - 1500 mm)

tmax up to 1900 °C

Rotary tube furnace/kiln, rotary drum furnace/kiln, gastight, Ø20 – 1500 mm, heated length 100 – 1500 mm, Tmax 1900 °C.

Applications:

ashing, calcination, oxydation, pyrolysis, reduction, thermal recycling

The most important characteristics

Thermal treatment of bulk materials (powder, granules, fiber, waste)
Resistance heated with FeCrAl-, APM-, MoSi2-heating elements
Microwave-heated
Hybrid heating (microwave/ resistance heating, resistance/ hot air)
Max. operating temperatures up to 1900 °C
Insulation of qualitatively superior ceramic fiber
High energy efficiency
Adjustable inclination and speed
Large span of options for customer-specific adaptions
Quality made in Germany
Easy operation and handling
Continous or/ and batch operation

We make it possible

Linn High Therm is specialized in adapting its products to customer’s requirements. Please let us know if you need any modifications apart from our standard offer. We will do everything to satisfy your wishes.

Standard options

Different temperature controllers
Gassing for safe operation when using flammable and explosive gases
Burning-off device with flame supervision for safe operation when using flammable and explosive gases
Safety package for safe operation
Gas warning system for safe operation when using flammable and explosive gases
Viewing glass for visual process control or additional pyrometer measuring
Condensate trap
Process guiding software for full control and documentation via PC

Further options

Up to 10 or more heating zones for best temperature distribution
Trailing thermocouple(s)
Foldable for easy tube change
End caps of stainless steel or alumina or quartz glass for high-purity processes
Conveyor system (screw conveyor, vibration or belt conveyor, cellular wheel sluice, double sluice)
Feed tank
Collecting vessel
Inlet and outlet head
Gas feeding device for one or more process gases
Automatization or integration in manufacturing process chain
Dust collector (cyclone, dust filter)
Gas/ air pre-heater
Thermal afterburning
Fittings in rotary tube for improvement of flowing qualities
Emergency drive
UPS
Current measuring
Cooling water-heat exchanger
Different drum and rotary tube designs are possible

Product Specifications

Technical data

Furnace housing

The furnace housing is mounted on a tilting frame and fixed on an underframe. The furnace inclination can be adjusted with a manual/ mechanical/ hydraulic lifting device.

The rotary tube drive is done via a frequency-controlled three-phase motor. The lead time can be varied steplessly via speed and work angle of the rotary tube.

Insulation

The insulation mainly consists of energy saving ceramic fiber material and is designed, depending on application, for cyclic or continuous operation.

Insert tube

Depending on temperature and firing good, different materials for the rotary tube can be used:

Metallic tubes up to 1250 °C
Ceramic tubes up to 1800 °C
Quartz glass tubes up to 1050 °C
Graphite/ sapphire tubes up to 1900 °C
Special materials for special applications (acid-resistant stainless steels, Mo, W)

In the insert tube different fittings for improvement of mixing, for prevention of caking, for avoidance of lump formation etc. can be realized.

Rotary tubes can be also realized as cooling tracks with indirect water cooling.

Gastight design

The gas flows in the rotary tube can be realized in direct current as well as in countercurrent.

Switch and control unit

Safety controller for each heating zone for protection of heating and insulation
3-phase thyristor unit for power regulation
Pre-transformer (if necessary)
Operating hours counter
PLC (e. g. Stange, Simatic, optional possible among others)

Product properties

Product Line:	type series
Operation Mode:	Batch and Continuous
Construction Types:	Dryer, Furnace
Designs:	Rotary tube furnace
Temperature Max (°C):	1900
Heatings:	electrical
Heatingmethods:	hybrid, induction, microwave/dielectric, resistance
Atmospheres:	Air, Controlled gas atmosphere, Vacuum
Applications:	ashing, calcination, oxydation, pyrolysis, reduction, thermal recycling