Büttner Industrial Dryers and Energy Systems

Comprehensive technical selection of industrial drying installations, moving grate furnaces, multi-fuel burners, and WESP emission control systems by Büttner.

Büttner Directly Heated Industrial Drum Dryers

Büttner single-pass drum drying installations are engineered for continuous thermal drying of wood chips, strands, biomass, and agricultural bulk materials. Systems achieve water evaporation rates up to 80 t/h utilizing hot flue gases from energy plants or combination burners.

Heavy girth gears, drive pinions, and reduction gear units for rotary dryer shells
Forged alloy support rollers, thrust roller assemblies, and heavy spherical bearings
Seamless forged tire rings, support shims, and high-strength expansion spring elements
Internal lifter blade flights, cross-shaped dispersal flights, and wear-resistant liners

Büttner Indirectly Heated Tube Bundle Dryers

Büttner indirectly heated rotary tube bundle dryers deliver gentle drying for free-flowing flakes, oilseed meals, and bio-based products. Equipment is engineered for efficient operation with combined heat and power plants as well as industrial heat pumps at moderate steam pressures.

Rotating tube bundles built from seamless steel tubing and precision header plates
Rotary steam joint distributor heads, mechanical face seals, and flexible pipe joints
High-pressure condensate drain lifters, siphon evacuation pipes, and thermal expansion joints
Heavy rotor trunnion shafts, split roller bearing pillow blocks, and shaft seal sets

Büttner Flash Tube Dryers and Industrial Belt Dryers

Büttner pneumatic flash tube dryers provide ultrafast moisture evaporation for refined wood fibers in MDF and HDF panel manufacturing lines. Operating alongside Swiss Combi low-temperature industrial belt dryers, they deliver gentle moisture removal without fiber degradation.

Heavy-gauge alloy flash drying ducts, precision flanged joints, and expansion bends
High-volume thermal process fans, dynamically balanced impellers, and drive shafts
High-efficiency fiber separation cyclonic units, rotary airlock valves, and gates
Perforated stainless belt meshes, drive chains, tensioning units, and tracking rollers

Büttner Industrial Solid Fuel Grate Firing Systems

Büttner industrial moving grate furnaces deliver efficient thermal conversion of bark, sawdust, wet chips, and wood processing residues. Multi-zone reciprocating stepped grates maintain stable biomass combustion without clinker formation or excessive unburned carbon losses.

High-chromium heat-resistant stepped grate bars, side locking wedges, and pins
Hydraulic pusher drive cylinders, proportional directional valves, and power packs
Water-cooled and air-cooled grate support beams, seal plates, and thermal probes
Submerged drag chain bottom ash extractors, ash transfer screws, and rotary seals

Büttner BCB Multi-Fuel Combination Burner Systems

Büttner BCB multi-fuel burner systems function as hot gas generators for industrial drying lines. Burners effectively utilize dry sander dust and screening fines in combination with natural gas, light oil, or heavy fuel oil within a stable, low-emission combustion vortex envelope.

Wood dust pneumatic injection nozzles, swirl vanes, and refractory mixing tips
Gas train manifolds, double solenoid shut-off valves, and air-fuel ratio actuators
High-pressure liquid fuel atomizers, preheating heat exchangers, and duplex strainers
Ignition spark transformers, ignition electrode lances, and optical flame detectors

Büttner Wet Electrostatic Precipitators WESP Systems

Büttner wet electrostatic precipitators (WESP) achieve high collection efficiency for submicron particulate, condensed aerosols, and blue haze from wood drying exhaust gases. Systems guarantee strict environmental compliance across board manufacturing and pelletizing facilities.

Hexagonal tubular collection electrodes fabricated from corrosion-resistant alloy
Rigid-frame corona discharge electrode wires with precision-machined discharge points
High-voltage transformer-rectifier power units and microsecond spark controllers
Continuous automated water spray washdown manifolds, nozzles, and slurry return pumps

Thermodynamics and aerodynamic balance of rotary single-pass drum dryers

Industrial Büttner single-pass drum dryers operate on a co-current thermal process principle where moist wood particles move parallel to high-temperature drying gas streams.

Inlet flue gas temperatures reaching 550 degrees Celsius enable rapid surface moisture flash-off without thermal fiber degradation. Engineered internal lifter assemblies establish a continuous falling material curtain across the entire drum diameter, maximizing interfacial heat transfer.

Heavy industrial exhaust draft fans maintain negative system pressure, preventing fugitive particle leakage across circumferential flexible seal rings.

Heavy trunnion support mechanics and dynamic tyre ring alignment

Large-diameter rotary dryer shells weighing several hundred tons are supported on twin heavy-duty roller stations through seamless forged alloy tyre rings. Heavy axial and radial operating loads necessitate precise geometrical alignment between roller shafts and the rotary dryer centerline.

Controlled roller skew adjustment compensates for natural gravitational downhill migration of the inclined drum, maintaining smooth floating operation against hydraulic thrust stops.

Split roller bearing assemblies with spherical roller bearings feature continuous circulation lubrication and multi-labyrinth dust barriers.

Steam-heated tube bundle rotors: steam distribution and condensate evacuation

Büttner indirectly heated rotating tube dryers utilize saturated process steam up to sixteen bar to provide gentle thermal drying for agricultural meals, beet pulp, and fine wood fractions.

The rotating tube bundle comprises hundreds of seamless boiler tubes secured into rigid structural header plates. Industrial steam enters the rotating manifold through a robust rotary joint equipped with mechanical carbon face seals.

Continuous condensate removal via internal siphon tubes prevents thermal shock and temperature stratification across the rotor length, ensuring consistent thermal flux.

Multi-zone moving grate combustion technology for wet bark and biomass residues

Industrial Büttner grate firing systems deliver self-sustaining thermal conversion of wet sawmill bark and wood processing residues exhibiting moisture contents up to sixty percent.

The inclined stepped reciprocating grate is arranged into independent hydraulic drive zones: fuel drying, primary ignition, vigorous combustion, and burnout.

Continuous reciprocating movement of heavy chromium-alloy grate bars agitates the fuel bed, preventing agglomeration while promoting uniform primary air penetration. Overfire air injection promotes complete oxidation of volatile hydrocarbons.

Multi-fuel vortex combustion of dry sander dust in BCB burner systems

Advanced BCB burner systems operate as high-efficiency hot gas generators for industrial drying lines in panelboard manufacturing plants. The burner assembly integrates coaxial injection passages for natural gas, heavy fuel oil, and pneumatic streams of dry sander dust below two hundred microns.

An adjustable secondary air swirl register produces an aerodynamic vortex with an internal recirculation zone. This configuration ensures prompt ignition of biomass micro-particles at the flame root. Electronic controls regulate air-to-fuel ratios based on optical flame sensor inputs.

Deep electrostatic aerosol emission abatement utilizing industrial WESP precipitators

Wet electrostatic precipitators (WESP) are installed downstream of industrial dryer exhausts to capture condensed hydrocarbon aerosols, organic resins, and fine particulate matter.

Exhaust gas streams are preconditioned in an inlet quench scrubber before entering the vertical tubular collection field. Under high-voltage electrostatic fields up to fifty kilovolts, rigid discharge electrodes charge submicron particles, driving them toward grounded collector tube surfaces.

Periodic water spray flushes captured organic resins from tube interiors without requiring electrical shutdown.

BUTTNER and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of BUTTNER and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.