Abstract: A process for combusting fuels, in particular waste, includes reducing the oxygen mass flow of the underfire combustion gas and increasing the oxygen mass flow of the overfire combustion gas in the event of an increase in the reaction rate or combustion intensity.

Abstract: Combustion residue can be partially melted and/or sintered in the combustion bed of a grate furnace system. By returning the unmelted and/or unsintered combustion residue, completely sintered inert granulates are obtained.

Abstract: The process for minimizing the concentration of toxic organic compounds in the fly dusts of incineration plants comprises, when special combustion conditions are detected which lead to the formation of organic pollutants, in particular dioxins/furans and/or precursor compounds of dioxins/furans, recirculating the fly dusts produced in the incineration plant to the combustion process for destruction of these compounds.

Abstract: A grate furnace with a grate includes grate steps made of grate elements lying next to one another. Every second grate step in the longitudinal direction of the grate can be driven for carrying out stoking movements and the grate steps in each case lying therebetween are stationary. Drive devices for driving the moveable grates are arranged in housing chambers and are in this way protected against impairment caused by material falling through the grate. A certain section of the housing chamber is open toward the bottom so that it is accessible even during operation of the grate furnace.

Abstract: The application relates to compounds that are suitable as labelable precursors for synthesis of 3?-[18F]fluoro-3?-deoxythymidine and that have formula (1), in which R denotes triphenylmethyl, triphenylmethyl substituted in the phenyl group, trialkylmethyl, triphenylsilyl, triphenylsilyl substituted in the phenyl group, or trialkylsilyl, R? denotes R1—SO2, where R1 is an unsubstituted or substituted C1 to C5 alkyl or an unsubstituted or substituted phenyl, and R? denotes C2 to C10 alkyloxycarbonyl, with the exception of 3-N-Boc-1-(3-O-nosyl-5-O-trityl-2-deoxy-?-D-lyxofuranosy The application also relates to a method for preparation of these compounds and to the use of the same for synthesis of 3?-[18F]fluoro-3?-deoxythymidine.

Abstract: A grate furnace with a grate (4) consisting of grate steps (15, 16, 17) composed [lacuna] grate elements lying next to one another, of which grate steps in each case every second grate step (15, 17) in the longitudinal direction of the grate can be driven for carrying out stoking movements and the grate steps (17) in each case lying therebetween can be fixed, has drive devices (18) under the grate, which are in each case arranged in housing chambers (25) and are in this way protected against impairment caused by material falling through the grate. A certain longitudinal section (36) of each of these housing chambers (25) is only partially enclosed and sealed by the under-grate blast chambers (7) and is thus open (37) toward the bottom, so that it is accessible even while the grate furnace is operating.

Abstract: In the process for treating incineration residues from waste incineration plants, the incineration material is incinerated on a furnace grate. The incineration residues produced are quenched in a wet slag remover and conveyed out of the latter. The wet incineration residues which come out of the wet slag remover are firstly divided into two fractions by means of a screening operation, after which the main fraction is washed with water taken from the wet slag remover, and in the process adhering fine pieces are separated off. The washed pieces of the incineration residues are fed for reuse. The washing water together with the ultra fine pieces which have been taken up during the washing operation pass into the wet slag remover. The fine fraction produced during the mechanical separation operation is fed back to the incineration operation.

Abstract: Incineration is controlled in such a way that a sintering and/or fusing of the slag takes place as early as in the incineration bed of the main incineration zone. The incineration residues produced are quenched in a wet slag remover and conveyed out of the latter. The wet incineration residues which come out of the wet slag remover are firstly divided into two fractions by means of a screening operation, after which the main fraction is washed with water taken from the wet slag remover, and in the process adhering fine pieces are separated off. The washed pieces of the incineration residues are fed for reuse. The washing water together with the ultra fine pieces which have been taken up during the washing operation pass into the wet slag remover. The fine fraction produced during the mechanical separation operation is fed back to the incineration operation.

Abstract: In a process for influencing the properties of incineration residues from an incineration plant, in particular a waste incineration plant, the incineration is controlled sot that a sintering and/or fusing of the slag takes place as earl as in the incineration bed of the main incineration zone, and as yet unsintered or unfused incineration residues are separated off at the end of the incineration operation and fed back to the incineration operation.

Abstract: The application relates to compounds that are suitable as labelable precursors for synthesis of 3′-[18F]fluoro-3′-deoxythymidine and that have formula (1), 1

Abstract: The process for minimizing the concentration of toxic organic compounds in the fly dusts of incineration plants comprises, when special combustion conditions are detected which lead to the formation of organic pollutants, in particular dioxins/furans and/or precursor compounds of dioxins/furans, recirculating the fly dusts produced in the incineration plant to the combustion process for destruction of these compounds.

Abstract: To improve slag quality, on a fired grate, at the end of the main combustion process, where burnable fractions are still present in addition to slag components which are already forming, the burnup rate or burnup intensity is changed by varying the primary air rate in sequential time sections, the time sections preferably being in a ratio of 1:1 and the reduced primary air rate being 50 to 70% of the standard primary air rate.

Abstract: In the process for treating incineration residues, the incineration is controlled in such a way that a sintering and/or fusing of the slag takes place as early as in the incineration bed of the main incineration zone. The incineration residues produced are quenched in a wet slag remover and conveyed out of the latter. The wet incineration residues which come out of the wet slag remover are firstly divided into two fractions by means of a screening operation, after which the main fraction is washed with water taken from the wet slag remover, and in the process adhering fine pieces are separated off. The washed pieces of the incineration residues are fed for reuse. The washing water together with the ultra fine pieces which have been taken up during the washing operation pass into the wet slag remover. The fine fraction produced during the mechanical separation operation is fed back to the incineration operation.

Abstract: The process for influencing the properties of incineration residues from an incineration plant, in particular a waste incineration plant, essentially consists in controlling the incineration in such a way that a sintering and/or fusing of the slag takes place as early as in the incineration bed of the main incineration zone, and that as yet unsintered or unfused incineration residues are separated off at the end of the incineration operation and fed back to the incineration operation.

Abstract: In the process for treating incineration residues from waste incineration plants, the incineration material is incinerated on a furnace grate. The incineration residues produced are quenched in a wet slag remover and conveyed out of the latter. The wet incineration residues which come out of the wet slag remover are firstly divided into two fractions by means of a screening operation, after which the main fraction is washed with water taken from the wet slag remover, and in the process adhering fine pieces are separated off. The washed pieces of the incineration residues are fed for reuse. The washing water together with the ultra fine pieces which have been taken up during the washing operation pass into the wet slag remover. The fine fraction produced during the mechanical separation operation is fed back to the incineration operation.

Abstract: A grate furnace with a grate (4) consisting of grate steps (15, 16, 17) composed [lacuna] grate elements lying next to one another, of which grate steps in each case every second grate step (15, 17) in the longitudinal direction of the grate can be driven for carrying out stoking movements and the grate steps (17) in each case lying therebetween can be fixed, has drive devices (18) under the grate, which are in each case arranged in housing chambers (25) and are in this way protected against impairment caused by material falling through the grate.

Abstract: In an incineration plant with combination air being fed to its furnace via a pipeline, a mixing chamber, an extractor and an air-preheating device are provided in the direction of flow of the combination air. Heated air is fed from the air-preheating device into the mixing chamber, so that the sucked-in incineration air and, in particular, the moist dust particles entrained by it are dried.

Abstract: In an incineration plant with incineration air being fed to its furnace (1) via a pipeline (9), a mixing chamber (12), an extractor (10) and an air-preheating device (11) are provided in the direction of flow (13) of the incineration air. Heated air is fed from the air-preheating device (11) into the mixing chamber (12), so that the sucked-in incineration air and, in particular, the moist dust particles entrained by it are dried.

Abstract: The furnace with liquid-cooled grate elements has an inflow and a return to these grate elements, the inflow and the return being connected to a condensation device open to the atmosphere. The inflow has arranged in it a U-shaped cooling-liquid seal, one leg of which has a liquid head which corresponds to an arbitrarily selected maximum pressure. The other, shorter leg is connected to a central distributor for the individual grate elements of the grate stages. The distance between the lowest point of the coolant flow of the lowest grate element and the upper point of the shorter leg corresponds to a selectable safety height amount which generates a pressure which counteracts the spread of steam bubbles occurring in the grate elements, so as to prevent a reversal in the direction of flow of the coolant.

Abstract: A fiberoptic cable tester includes a body having an inlet fitting, an outlet and a channel that extends between the inlet fitting and the outlet. A magnification and focusing assembly is mounted within the channel between the inlet fitting and the outlet. A fiberoptic cable end fitting is communicably interengaged with the inlet fitting and light is transmitted through the magnification and focusing assembly and the channel to the outlet. The light is projected from the outlet and against a target area to produce an image which is indicative of the condition of the fiberoptic cable.