Abstract: A grate bar has a grate bar head, two side walls, a running surface behind the head and between the side walls and an underside disposed below the surface and between the side walls. A recess in one side wall forms an air slot between the surface and underside and is arranged only on one side wall, not in its opposite side wall. In a grate bar arrangement including multiple grate bars, each including a running surface and a grate bar head, in which an upper grate bar with grate bar head is moveably arranged relative to a lower grate bar so that the head may slide over front and rear grate bar running surface areas, the running surface has air slots in the front and rear areas and the head is displaceable relative to these slots so that the opening cross section of all slots remains constant.

Abstract: A grate bar has a grate bar head, two side walls, a running surface behind the head and between the side walls and an underside disposed below the surface and between the side walls. A recess in one side wall forms an air slot between the surface and underside and is arranged only on one side wall, not in its opposite side wall. In a grate bar arrangement including multiple grate bars, each including a running surface and a grate bar head, in which an upper grate bar with grate bar head is moveably arranged relative to a lower grate bar so that the head may slide over front and rear grate bar running surface areas, the running surface has air slots in the front and rear areas and the head is displaceable relative to these slots so that the opening cross section of all slots remains constant.

Abstract: A method operates a furnace unit with a feed chute and a camera for capturing an image of the surface of the chute. The chute includes a slide on which material flows to a grate, and the coverage of the chute and in particular of the slide with material, the burning bed thickness and the burnout zone are determined by an image evaluation.

Abstract: A cleaning hose conveying module is proposed for the simple and quick cleaning of flue gas tubes, with which the cleaning hose can be conveyed from a hose store into a hose guide. A hose cleaning means is formed by a rinsing and drying unit for a hose after its withdrawal from the flue gas tube.

Abstract: A power-generation system having a combined heat and power plant and a fermentation plant has an electrolysis plant, which is connected by lines to both the combined heat and power plant and to the fermentation plant. This arrangement enables a method in which heat from a combined heat and power plant can be used for a fermentation plant and additionally heat from an electrolysis plant can be used for the fermentation plant, whilst the oxygen from the electrolysis plant is used for the combined heat and power plant.

Abstract: In a method for the combustion management in firing installations, in which a primary combustion gas quantity is conveyed through the fuel into a primary combustion area, part of the waste gas flow is extracted in the rear grate area and returned to the combustion process in the form of internal recirculation gas. In this case, no secondary combustion air is supplied between the grate and the supply of the internal recirculation gas. A firing installation for carrying out this method features nozzles above the firing grate such that no air supply is arranged between the firing grate and the nozzles.

Abstract: In a method for protecting heat exchanger pipe in boiler systems having at least one heat exchanger pipe, which is surrounded by a ceramic component, into which flue gas is directed from at least two opposite sides, gas is introduced between the heat exchanger pipe and the ceramic component.

Abstract: A special distribution of nozzles in the flue gas outlet and their alignment make it possible to guide the flue gas along a wavy line. The addition of combustion air for primary air and secondary air can be variably distributed during operation of the combustion plant, for example so as to also keep the burnout per unit of time constant while maintaining a constant combustion air ratio.

Abstract: A power-generation system having a combined heat and power plant and a fermentation plant has an electrolysis plant, which is connected by lines to both the combined heat and power plant and to the fermentation plant. This arrangement enables a method in which heat from a combined heat and power plant can be used for a fermentation plant and additionally heat from an electrolysis plant can be used for the fermentation plant, whilst the oxygen from the electrolysis plant is used for the combined heat and power plant.

Abstract: A grate step module (1) for a thrust combustion grate for the combustion of refuse in a large-scale plant has a carrier part (2) for the grate steps (3, 4), exactly one fixed grate step (3) and exactly one movable grate step (4) and also a grate step drive. The movable grate step (4) is displaceable back and forth with respect to the fixed grate step (3) by way of the grate step drive. The grate step module (1) is connectable in a row with further grate step modules (1) without a gap and in this way forms the thrust combustion grate.

Abstract: A cleaning hose conveying module is proposed for the simple and quick cleaning of flue gas tubes, with which the cleaning hose can be conveyed from a hose store into a hose guide. A hose cleaning means is formed by a rinsing and drying unit for a hose after its withdrawal from the flue gas tube.

Abstract: In a method for the combustion management in firing installations, in which a primary combustion gas quantity is conveyed through the fuel into a primary combustion area, part of the waste gas flow is extracted in the rear grate area and returned to the combustion process in the form of internal recirculation gas. In this case, no secondary combustion gas is supplied between the grate and the supply of the internal recirculation gas. A firing installation for carrying out this method features nozzles above the firing grate such that no air supply is arranged between the firing grate and the nozzles.

Abstract: A grate step module (1) for a thrust combustion grate for the combustion of refuse in a large-scale plant has a carrier part (2) for the grate steps (3, 4), exactly one fixed grate step (3) and exactly one movable grate step (4) and also a grate step drive. The movable grate step (4) is displaceable back and forth with respect to the fixed grate step (3) by way of the grate step drive. The grate step module (1) is connectable in a row with further grate step modules (1) without a gap and in this way forms the thrust combustion grate.

Abstract: The invention relates to a measuring apparatus comprising a coating probe and a probe holder which is disposed on a wall of a sample chamber. The coating probe is displaceable into the sample chamber on one side and is displaceable out from the sample chamber on the opposite side. As a result, practical investigations of boiler coatings are made possible.

Abstract: The invention relates to a method of running a conduit in an incineration plant as well as a device with a conduit, in which the conduit is surrounded by a ceramic component onto which flue gas flows from at least two opposite directions, wherein between the conduit and ceramic component a protective fluid space with a protective fluid inlet and/or heat exchanger pipes is provided.

Abstract: In a method for protecting heat exchanger pipe in boiler systems having at least one heat exchanger pipe, which is surrounded by a ceramic component, into which flue gas is directed from at least two opposite sides, gas is introduced between the heat exchanger pipe and the ceramic component.

Abstract: In order to protect heat exchanger pipes (1) in steam boiler systems, special casing elements (2) made of fiber-reinforced ceramic are proposed. The casing elements prevent or reduce the formation of films and corrosion on the heat exchanger pipes and thus enable higher steam parameters of the boiler system and a correspondingly increased thermal efficiency.

Abstract: The apparatus for separating residues from a thermal waste treatment into one fine fraction and one coarse fraction comprises a housing (1) abutting on swinging elements (2), said housing having a plurality of diagonally offset plates (3.1-3.5) that are disposed one beneath the other and are connected to said housing (1) by their side edges, and being equipped with means (5) for generating a vibration component oriented in the direction of the plates (3.1-3.5) disposed diagonally offset downward. The apparatus further comprises one suction line (6) as well as an inlet opening for a gas that may be passed between the plates for wind sieving. Residues or slag from a waste treatment plant or an incineration plant are supplied to this apparatus in order to separate them into at least one fine fraction and one coarse fraction.

Abstract: A device with a heat exchanger with a feed pipe for a medium leading from a medium inlet to the heat exchanger entrance and with a discharge pipe leading away from the heat exchanger exit is characterized in that it has a first bypass from the medium inlet to the discharge pipe and a second bypass from the feed pipe to the medium outlet and valves, so that the medium can also flow from the heat exchanger exit to the heat exchanger entrance.

Abstract: The combustion system for implementing the process has a combustion grate, hoppers below the combustion grate for supplying primary combustion gas through the grate and nozzles that lead into the furnace above the combustion grate to supply secondary combustion gas. At least one extraction duct for flue gas is provided at the rear end of the furnace above the combustion grate. This duct is connected to the suction side of a fan. The pressure side is connected to nozzles arranged in the upper area of the flue gas pass. The nozzle height allows the flue gases a residence time of at least 1 second after secondary gas is supplied.