Wood chips - Import export

Heating technology with a future The calculation is simple, the technology successful. Efficient surface drying is achieved with biomass in Rippert plants. Together with the Hargassner company from Austria, a specialist for heating with biomass, and the proven Rippert plant know-how, the technology is now marketable and has gone into production. The demanding drying characteristics in a powder-coating plant are compatible with the process and work perfectly. A future-orientated heating technology with considerable economic and ecological benefits – the experts are unanimous in that. Wood pellets or wood chips are the inexpensive energy suppliers. They are valuable waste products that result from the processing of domestic timbers. Heating with wood chips – without intermediate heat transfer media such as thermal oil • Environmentally friendly and CO2-neutral • fully automatic boiler cleaning and ash discharge Maximum financial saving potentials are realised with this energy carrier. Wood chips, chopped to a transportable size and dried by the supplier, are stored in the storeroom near the plant. It can be located on the same level or lower. A tried-and tested transport system consisting of a floor agitator with springs and discharge auger carries the wood chips reliably into the plant. Here it acts as a fuel with maximum convenience. If the calorific value equivalents are examined, we see that 1,000 litres of fuel oil is equivalent to 12 m³ of wood chips. The ratio is the same for 1,000 m³ of natural gas. Heating with wood pellets - without intermediate heat transfer media such as thermal oil Wood pellets are true energy bundles. They consist of natural wood and are made by compressing sawdust, which is produced in large quantities every day in the industry. As a biomass they are the alternative to wood chips and are just as advantageous from an economical point of view. Pellets have the smallest volume and are conveyed dust-free and without odours from storage containers to a storage vessel next to the plant. They are transported into the combustion chamber via a rotary vane feeder and feed auger. For comparison: 1,000 l fuel oil = 2 t pellets 1,000 m³ natural gas = 2 t pellets 1,000 l liquefied gas = 1.32 t pellets Advantages • Reduction in energy costs Heating cost comparison (reference = 1,000 l fuel oil)

Industrial Grate-ring systems are used very often in processes involving energy generation with solid fuels. Büttner's grate-ring energy systems are individually customized to the operator's needs and are exible when it comes to the fuel needed – whether it be waste wood, bark, or chips. Key features: fuels with a moisture content level between 20 - 150% based on bd combustion of waste wood (A1 - A3), wooden board wastes (MDF, PB and OSB), bark, wood chips, co air-cooled step grate sized from 12 to 90 m² ring capacity from 10 - 100 MW automatic de-ashing system graduated air-inlets low emissions

The first examples of which were built by CMC TEXPAN in the early 1990s.They are aimed at cleaning the material ow fed into the machine byremoving any possible contaminants, the density of which is higher than that of the processed wood chips, e.g. stones, sand, metals, rubber, coarser chipsetc.The principle of operation is based on densimetric separation chieved in a vibratory box. In addition to the vibration of the machine casing, the materialow is subjected to a strong, pulsating air ow, enhancing the separationeect and providing for further “dry leaning” of chips. Heavy contaminants (e.g. stones, glass, rubber and plastic) are removed from the material ow,discharged from the machine side and conveyed to further re-classication,while clean chips are discharged from the machine’s front end.

Disc chippers are especially suitable for processing straightly grown round wood into high quality wood chips. The raw material is fed into the chipper via a slanted horizontal feeding conveyor. The disc inside the housing is equipped with knives. The logs are processed to chips between the vertical rotor knives and the counter knives. The chips are discharged below via a discharge chute, with lling level control, to a subsequent conveyor. Advantages High, consistent chip quality Quick, ergonomic knife changes Cutting force supports material infeed Features, Function Chip length 20-25 mm Chip width 4-10 mm Options Adjusting devices for rotor and stator Knives

Drum chippers are used to process long and short logs, wood pieces, saw mill waste, veneer waste, residual wood, and other wood waste to high-quality chips. Depending on the size and design of the drum chipper, the machine can be adjusted to the type of wood to be processed and the desired chip quality. The most suitable chipper size is determined by the maximum trunk diameter to be processed and the desired production capacity. The desired chip length also inuences the performance of the chipper. Key features Adv Large draw-in rollers for process-reliable wood feed at constant speed Pivoting feed system for automatic adjustment to loading height Hydraulic ywheel drive for consistent contact pressure and the damping of impacts Robust, well-balanced rotor Large ywheel inertia to compensate for short-term peak loads Generously dimensioned V-belt drive Startup process via Pony-motor to reduce spikes in power supply during acceleration of the rotor