The invention relates to an installation having a process chamber which comprises an inner space having a receiving region for workpieces. The process chamber has an opening for the supply or discharge of workpieces. The process chamber is constructed so as to have a device for the introduction of gaseous fluid into the inner space, which device has at least one nozzle or aperture for the production of a fluid stream curtain between the opening and the receiving region for workpieces. The process chamber has a device for supplying fresh air, with which device fresh air can be introduced into the receiving region at a side of the fluid stream curtain, which side faces away from the opening.

A system for treating objects includes a device for tempering objects in which a tempering tunnel having at least one air outlet and at least one air inlet is arranged in a housing. At least one heating unit, in which a hot primary gas flow can be generated, is assigned to the tempering tunnel, wherein the hot primary gas can be guided into a circulating air heat exchanger, in which air from the tempering tunnel can be heated by hot primary gas as circulating air, which can be fed back to the tempering tunnel in a circuit via the at least one air inlet. The heating unit is coupled in the manner of a combined heating and power plant to an electric generator in such a way that electrical energy is produced during operation of the heating unit.

A pellet made of dried, unfermented livestock manure has N, P and K values in the range of N: 3 to 7 g/kg, as ammoniac and organic nitrogen, P: 2 to 6 g/kg as phosphorus pentoxide and K: 2 to 6 g/kg as potassium oxide (g/kg). The pellet has a hardness exceeding 10 kg and has a shell composed of manure-base lignin. A press roll, including a hollow rotatable drum with a perforated screen, may be used in combination with an endless belt and a scraper to produce the pellet.

A pellet stove, having a pellet hopper, a combustion chamber, a heat exchanger and a pellet movement assembly, adapted to move the pellets from the hopper into the combustion chamber. The pellet movement assembly is located and configured so as to be heated by exhaust gases from the combustion chamber and the pellets spend a sufficient amount of time in the pellet movement assembly, where oxygen is prevented from freely flowing in, so that the pellets are torrefied during transit to the combustion chamber.

The invention relates to a dryer for a lacquering facility: a) having a dryer housing, in which heated air is circulated, b) having an exhaust air line for a exhausting exhaust air from the dryer housing; c) having a combustion unit, which is connected to the exhaust air line, and which is used for thermal post-treatment of the exhaust air from the dryer housing and for providing hot air to a heat exchanger; d) wherein said heat exchanger is set up to supply said dryer housing with heated fresh air; and wherein e) at least one heating unit for heating the air circulated in said dryer housing is associated with said dryer housing. It is provided according to the invention that a combustion air supply of the heating unit is connected so it communicates with the dryer housing.

The invention relates to a method of torrefaction of an optionally predried biomass in a torrefaction reactor such that torrefied biomass and torrefaction gases are obtained, and wherein an oxygen-containing gas is supplied to the torrefaction reactor at a first position in the reactor such that oxygen reacts with components of the torrefaction gases under the formation of heat and wherein torrefaction gases are withdrawn from the torrefaction reactor at a second position of the torrefaction reactor and wherein the first position is located downstream of the second position in relation to a biomass transport direction in the torrefaction reactor such that the torrefaction gases moves through the torrefaction reactor countercurrent with the biomass transport and wherein the optionally predried biomass has a temperature of between 30 C. and 230 C., preferably between 50 C. and 200 C., most preferably between 60 C. and 180 C. when entering the torrefaction rector.

A method for drying bulk goods, in particular wood fibers and/or wood chips, wherein the bulk goods is continuously dried in a dryer (1), in particular a drum dryer. The vapor-gas mixture flows through the drum dryer (1) in a dryer circuit and is indirectly heated via at least one heat exchanger (4) by a burner waste gas that is heated in at least one burner (5). The drying vapors are supplied to the at least one heat exchanger (4). Upstream, downstream and/or within the at least one heat exchanger (4), at least a partial flow of the drying vapors are branched off to be conducted into the burner (5). The remaining partial flow is conducted to the dryer (1) again. The partial flow of drying vapors to the burner (5) is driven by at least one regulable partial vapor fan (10).

An ecosystem operated in a plant having a drying unit is provided. The ecosystem includes: a regenerative thermal oxidization unit for processing a waste gas to produce a hot gas; a first hot gas pipeline connected to the regenerative thermal oxidization unit and the drying unit, wherein the hot gas is transferred from the regenerative thermal oxidization unit to the drying unit via the first hot gas pipeline; a heat recovery unit disposed at the first hot gas pipeline to absorb heat from the first hot gas pipeline; an absorption refrigeration unit connected to a target to be cooled; and a hot liquid pipeline connected to the heat recovery unit and the absorption refrigeration unit, wherein the heat recovery unit transfers heat from the first hot gas pipeline to the absorption refrigeration unit via the hot liquid pipeline to actuate the absorption refrigeration unit to cool the target.

A method of treatment of process gas from an industrial process having a main stream and a secondary stream, wherein at least a portion of the process gas is treated by the following process steps: a first condensation step, in which a first condensate is separated out of the process gas; a first branching that takes place after the first condensation step, in which at least a portion of the process gas is branched off from the main stream as offgas into the secondary stream; a first further treatment step that takes place in the main stream after the first branching, in which at least a portion of the process gas is treated further after the first condensation step.

An apparatus for drying material for an asphalt mixing facility includes a rotary kiln rotatably drivable about an axis of rotation, in which the material is dried, wherein the rotary kiln has a material inlet and a material outlet, a heating unit coupled to the rotary kiln for feeding heat to the rotary kiln, wherein the heating unit is designed with a burner which has a burner housing having a longitudinal axis, an air duct arranged at the burner housing for feeding air, a swirling element for swirling the air in the burner housing relative to the longitudinal axis, a hydrogen gas line connected to the burner for feeding hydrogen gas into the burner, wherein a hydrogen gas nozzle is connected to the hydrogen gas line for discharging the hydrogen gas, a burner head arranged at the burner housing for generating a burner flame.