Method for continuously drying bulk goods, in particular wood fibers and/or wood chips

Method according to anyone of the preceding claims, characterized in that the partial vapor fan (10) is regulated via a maximum inert gas content in the drying circuit.

Method according to anyone of the preceding claims, characterized in that the burner exhaust gas is cleaned by at least one filter (6), in particular an electrostatic precipitator, preferably a dry type electrostatic precipitator.

Method according to anyone of the preceding claims, characterized in that, at least partially, solids are used as fuel for the burner (5), in particular biomass, wherein preferably waste products from the production of the wooden material boards are used.

Method according to anyone of the preceding claims, characterized in that the drying vapors are cleaned after passing through the dryer (1), whereby preferably as cleaning apparatus (3) at least one cyclone, in particular at least one cyclone battery is used.

Method according to anyone of the preceding claims, characterized in that the drying vapors after the dryer (1) are driven by at least one drying vapor fan (8).

Method according to anyone of the preceding claims, characterized in that the water content in the dryer (1) is regulated, whereby preferably the bulk goods are metered depending on the moisture of different bulk good fractions when supplying the dryer (1).

Method according to anyone of the preceding claims, characterized in that the burner (5) is supplied with at least one further exhaust gas as combustion air and/or cooling air, wherein preferably the additional exhaust gas is taken from the manufacturing of the wooden material boards, and is in particular exhaust gas from the presses, exhaust gas from the sawing arrangements and/or exhaust gas from the boiler.

Method according to anyone of the preceding claims, characterized in that the cooling air supply in the burner (5) occurs via an inner and an outer nozzle ring in the ceiling of the combustion chamber, wherein preferably the nozzle rings can be regulated separately from each other.

Arrangement for drying of bulk goods, in particular of wood fibers and/or wood chips, comprising a dryer (1), in particular a drum dryer, at least one burner (5) and at least one heat exchanger (4), which is provided to indirectly heat a vapor gas mixture for drying the bulk goods in the dryer (1), at least one branch line, upstream, downstream and/or within the at least one heat exchanger (4) to the burner (5) to branch off a partial flow of the drying vapors, and at least one line for the remaining partial flow to the dryer (1), characterized in that in the branch line to the burner (5) at least one regulable partial vapor fan (10) is provided.