摘要:
A method and an apparatus for reducing discharges of greenhouse gases, particularly carbon dioxide. Carbonaceous materials, wood, pieces of vegetation, products made therefrom, and especially vegetative and municipal wastes poorly suitable for energy production, are treated in such a way that the release of carbon dioxide back to the atmosphere is reduced and restrained substantially. This is accomplished such that an organic mass is carbonized by heating in a charring reactor (2) in an oxygen-free or limited-oxygen volume to charcoal (20), the amount of which is more than 50 % of the carbon content of the dry mass matter, and to a gas mixture (30), from which, after its burning and the recovery of primary energy, at least water vapour is condensed to water and the released heat is exploited on a counterflow principle in a countercurrent heater (1) in the heating and drying of materials to be fed into the process. The resulting charcoal (20) can be exploited in the purification of bodies of water and as soil conditioner.
摘要:
Un tambour (10) a axe horizontal ou légèrement incliné comportant intérieurement une hélice (12) fixée à la paroi du tambour et assurant la progression des matières solides, des dispositifs de relevage et d'égouttage divisant le couloir formé par l'hélice en une série de compartiments, et formant avec les spires de l' hélice (12) et la paroi du tambour (10) des chambres recevant le liquide s'égouttant des matières solides, et des couloirs (26) faisant communiquer chacune de ces chambres avec le compartiment situé en amont, en considérant le sens de progression des matières solides. Les dits couloirs (26) sont aménagés le long de la paroi du tambour (10) et chacun d'eux communique avec le compartiment qu'il alimente par des ouvertures (30) percées dans sa partie arrière, en considérant le sens de rotation du tambour, et par des orifices percés dans la partie avant, attenante à la cloison (16) du dispositif de relevage et d'égouttage, d'un épi creux (28) raccordé à la partie avant du couloir et disposé approximativement dans le plan médian, transversal à l'axe du tambour, du compartiment.
摘要:
The present invention relates to processes and apparatus for improving municipal waste treatment in autoclave processes. Improvements relate to the use of air-waste stream treatment, indirect heating with thermal fluid, forced steam transfer, autoclave design, waste treatment of contaminated air,classifiers for better separation offibres from glass or gritand processing. The improvements allow more efficient, saferand environmentally friendly processing, and better end products.
摘要:
Wärme- und/oder Stoffaustausch werden in einem verfahrenstechnischen System durchgeführt, das einen mit einer Zufuhrleitung (4) versehenen Behälter (1a, 1b) aufweist, der Medien unterschiedlichen Aggregatszustandes enthält. Den Medien werden mittels eines Pulsators (9a, 9b) Pulsationen aufgezwungen. Dem Behälter (1a, 1b) ist ein in der Zufuhrleitung (4) des fluiden Mediums zum Behälter (1a, 1b) liegendes Sperrorgan (8) vorgeschaltet, das den Eintritt der Pulsationen in die Zufuhrleitung (4) zumindest weitgehend verhindert. Zur Verbesserung des Wärme- und/oder Stoffaustauschs, werden:
a) die Pulsationen dem Haupstrom des Fluids aufgezwungen, b) die Pulsationsfrequenz wird maximal der halben Resonanzfrequenz des Systems nach Maßgabe der Raumform des Behälters (1a, 1b), der Temperatur und der Eigenschaften der Medien gewählt, und c) die Antinode (Schwingungsbauch) der sich ausbildenden stehenden Welle wird zumindest angenähert in der Behältermitte eingestellt. Dadurch wird im Behälter kein Schwingungsknoten ausgebildet. Vorzugsweise wird die Pulsationsfrequenz zu 1/4 der Resonanzfrequenz des Systems gewählt.
摘要:
A process and apparatus for drying or heating a particulate material by means of heat transfer media which is brought into directly contact with the particulate material within a continuously rotating cylindrical drum. The particulate material flows in one general overall direction through the drum and the heat transfer media flows in a generally opposite direction through the drum. The particulate material is subjected to heat treatment by repeatedly comining into direct and immediate physical contact with the heat transfer media in the course of flowing through the drum while it is separated from the heat transfer media per revolution of the drum.
摘要:
A method and an apparatus for reducing discharges of greenhouse gases, particularly carbon dioxide. Carbonaceous materials, wood, pieces of vegetation, products made therefrom, and especially vegetative and municipal wastes poorly suitable for energy production, are treated in such a way that the release of carbon dioxide back to the atmosphere is reduced and restrained substantially. This is accomplished such that an organic mass is carbonized by heating in a charring reactor (2) in an oxygen-free or limited-oxygen volume to charcoal (20), the amount of which is more than 50 % of the carbon content of the dry mass matter, and to a gas mixture (30), from which, after its burning and the recovery of primary energy, at least water vapour is condensed to water and the released heat is exploited on a counterflow principle in a countercurrent heater (1) in the heating and drying of materials to be fed into the process. The resulting charcoal (20) can be exploited in the purification of bodies of water and as soil conditioner.
摘要:
A method and apparatus for processing particulate material charged into a rotary cylindrical vessel (12) having its axis inclined to the horizontal so that one end thereof is raised to the other end, and having a respective annular cover plate (16, 18) at each end defining a central opening at its end (17, 19), the material being charged through the opening (17) at the one end thereof and caused to progress along the vessel (12) and discharge therefrom through the opening (19) at the other end by rotation of the vessel (12). Gas for processing the material is passed into the vessel (12) during rotation of the latter, the gas being supplied from a source thereof, via a supply pipe (34), and discharged within the material (38) in the vessel (12) through port means (44, 48) of at least one discharge conduit (42) which is in communication with the supply pipe (34), extends longitudinally within the vessel (12) and is fixed against rotation with the vessel (12); the quantity of material (38) progressing along the vessel (12) being sufficient to cover the at least one conduit (42).