Abstract:
The disclosure relates to a reactor for processing feed material, comprising: a de-gasifier zone configured to operate at a de-gasifier temperature and receive the feed material in order to remove components from the feed material that take a gas or vapour form below the de-gasifier temperature; a pyrothermic zone configured to operate at a pyrothermic temperature and receive the feed material from the de-gasifier zone in order to cause pyrolysis of the feed material to release a gas from the feed material; a molten zone configured to operate at a molten temperature and receive the feed material and released gas from the pyrothermic zone; and a heater configured to heat the molten zone to the molten temperature by burning the released gas received from the pyrothermic zone.
Abstract:
The present invention relates to a method of manufacturing composite particles that work as a binding agent, the composite particles containing a limestone portion, which is based on limestone particles or limestone silicate rock particles and which is mixed with a kaolin portion that comprises kaolin particles. In the method, the limestone portion or the kaolin portion is subjected to calcination before they are mixed with each other, or the mixture of these portions is subjected to calcination, whereby, the activated layer on the surfaces of the particles of, at least, one of the said portions that was formed in the calcination makes the particles of the portions to attach to each other into composite particles. The invention also relates to the composite particles thus produced, the concrete that is formed by these, and equipment that is suitable for the implementation of the said method.
Abstract:
A system for degassing granular polysilicon includes a baking container having an interior space for containing granular polysilicon. The system also includes a heat source for heating the granular polysilicon within the interior space of the baking container. The system further includes a drive mechanism operatively connected to the baking container for mechanically agitating the granular polysilicon within the interior space during heating.
Abstract:
L'invention est relative à un procédé de production de matériau fritté à partir de matières crues (11) minérales, mis en œuvre dans une installation comprenant, un préchauffeur (1) à cyclones, un four rotatif (2), et un refroidisseur à grilles (3), et dans lequel on préchauffe les matières crues (11) dans le préchauffeur (1) à cyclones, on calcine et on fritte les matières préchauffées dans le four rotatif (2), et on refroidit les matières calcinées par soufflage d'air de refroidissement (4,40) dans le refroidisseur à grilles (3), produisant de l'air chaud. Selon l'invention, on sépare l'air chaud en trois fractions, de l'amont vers l'aval, selon le sens d'avance des matières dans le refroidisseur à grilles, lesdites trois fractions d'air chand étant à températures décroissantes, comprenant respectivement une première fraction d'air (5) servant d'air de combustion au niveau d'au moins ladite zone de combustion du four rotatif et/ou du précalcinateur éventuel de l'installation, une deuxième fraction d'air (6), intermédiaire excédentaire par rapport aux besoins en air de combustion, pour la production d'énergie, et une troisième fraction d'air (7), de température inférieure dont on dirige au moins une partie (71) vers ladite zone de combustion de l'installation pour être utilisée comme air de combustion avec la première fraction d'air (5).
Abstract:
Aluminium melting plant for the production of ingots for foundry, characterized by the fact that it is completely modular, in which every module, melting furnace, waiting basin, joint for the distribution of liquid metal, systems for loading scrap iron and retrieving slag, ducts of adduction smoke, ingot moulds, ladders and decks are stackable each other or detachable and transportable with standard means of transport, and such that the positioning of the melting furnace is risen from the floor plan and positioned on parallelepiped, metallic, modular and modular bodies with a rectangular base, to form a shop floor to which decks are associated in order to widen the workspace and which can be accessed by means of ladders or hoists and on which and within which it is possible to position the accessory equipment for loading scrap iron and retrieving slag, smoke ducts and piping for the water, electrical and fuel system.
Abstract:
Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end (2) and treated material is evacuated from the kiln at the outlet end (1), whereby a main combustion zone (6) extends inside the kiln over a distance of ¼ to 1/3 of the internal length L int of the kiln, whereby a supplementary combustion zone (5) in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end (2) of at most ¼ of the internal length L int , and whereby no combustion takes place in a heat exchange zone (7) located between the main combustion zone (6) and the supplementary combustion zone (8).
Abstract:
Изобретение относится к области теплообменных устройств, в частности, к цепным завесам для вращающихся печей промышленности строительных материалов. Цепь выполнена из двух видов звеньев с чередованием через звено и состоит из соединенных между собой звеньев с поперечным сечением овалообразной формы. Наименьший диаметр овалообразной фигуры, представляющей собой профиль поперечного сечения тела каждого звена цепи, выполнен равным диаметру условного круга с площадью, равной не менее 40% площади поперечного сечения звена. Внешняя часть контура овалообразной фигуры, представляющей собой профиль поперечного сечения тела каждого звена цепи, выполнена выпуклой кривой линией. Внутренняя часть контура овалообразной фигуры, представляющей собой профиль поперечного сечения тела каждого звена цепи, в месте контакта звеньев, выполнена выпуклой дугой окружности с радиусом, равным радиусу криволинейной части внутреннего кольца сопрягаемого с ним звена цепи. В результате обеспечивается увеличение тепловой проводимости, снижение сопротивления цепи газовому потоку, повышение интенсивности процесса передачи тепла, повышение производительности, снижение износа цепи, повышение самоочистки звеньев, увеличение срока эксплуатации и повышение запаса прочности цепи.
Abstract:
A secondary stave support for a furnace stave with a water pipe having a first portion of the water pipe external to the furnace stave and a second portion of the water pipe also external to a furnace shell wall comprising: a protection pipe having first and second ends, wherein the protection pipe is coaxially disposed about the water pipe with the first end nearest the stave; and a first gas-tight seal, disposed between the first end of the protection pipe and a third portion of the water pipe, prevents gas flow from within the furnace shell wall into an annular space between the protection pipe and the water pipe.