Abstract:
A method for production of electricity and heat in a process of thermal conversion of different types of wastes in an integrated installation, wherein different types of wastes (101-109) are segregated to separate wastes destined for thermal disposal (124, 132, 133, 134, 135), which are then processed in at least two mineralisers (139, 140, 141), each having a form of an isolated, longitudinal, rotatable and inclined tube (200) with vanes (205-210) arranged on its internal walls to scatter the material during the rotation of the tube (200), characterized by performing periodic measurements to determine calorific value, moisture content and composition structure of the wastes intended for thermal disposal (124, 132, 133, 134, 135) by using analysers (114, 118, 122, 127, 129, 131). Using rotary mineralisers (139, 140, 141) that comprise in the mineralisation zone (230) vanes (205-210) with adjustable angle of inclination to the longitudinal axis of the mineraliser tube (200), so that during the operation of mineraliser, for larger inclination angles of vanes (205-210) the batch material passes faster through the mineralisation zone than for smaller inclination angles of vanes (205-210). By using mixers (136, 137, 138) assigned to the mineralisers (139, 140, 141), the wastes (124, 132, 133, 134, 135) are mixed with each other in proportions dependent on the predetermined amount of chemical energy of the batch material and on the inclination angle of vanes (205-210) set in the particular mineraliser (139, 140, 141), so that for a mineraliser (139, 140, 141) having a larger inclination angle of vanes (205-210) a mixture with a higher calorific value is selected than the calorific value of mixture for a mineraliser (139, 140, 141) having a smaller inclination angle of vanes(205-210). The rotational speed of each mineraliser (139, 140, 141) is adjusted according to the moisture content of the mixture provided to the particular mineraliser (139, 140, 141).
Abstract:
A waste water disposal method using an industrial combustion equipment, comprising the steps of detecting the operating state of the industrial combustion equipment by signals from a flowmeter for fuel supplied to the industrial combustion equipment, and accurately and properly controlling the flow of waste water, whereby undisposed waste water can be prevented from being discharged during low combustion, before stopping combustion, and immediately after ignition and a fuel system, combustion chamber, and flue can be prevented from being affected by the mixing of the waste water to provide an optimum waste water disposal according to the types of the waste water and combustion equipment.
Abstract:
A system and method (100) for treating, injecting and co-combusting sludge in a municipal waste or other combustor is disclosed. The system includes a sludge receiving and treatment module (200) and a sludge injection and combustion module (300). The sludge is received and stored in one or more storage hoppers (1) where it is first diluted with a liquid (3) and subsequently mixed (13) to a desired homogeneous consistency suitable for pumping. The high liquid content sludge is then pumped (16) to a furnace injection nozzle (19) where it is preferably atomized with steam (29) and sprayed into the combustion zone of the furnace (20). The disclosed system and method increases sludge moisture content and controls the solids content of the sludge to control furnace temperature.
Abstract:
Bei einem Verfahren zum Aufarbeiten von Rückständen aus der Zellstoff- und Papierindustrie, bei welchem die Rückstände verbrannt werden, wird die Verbrennung unter Ausbildung einer Schmelze des nicht brennbaren Anteiles der Rückstände bei Temperaturen über 1150° C geführt, worauf die schmelzflüssige Schlacke abgezogen und granuliert bzw. zerkleinert wird. (Fig.1)
Abstract:
La présente invention se rapporte à un procédé de traitement de déchets, caractérisé en ce que l'on soumet les déchets à un pré-broyage et à un tri magnétique et densitométrique permettant d'éliminer les fractions inertes et métalliques, en ce que l'on mélange la masse du résidu de ce traitement dans un broyeur-malaxeur à de la chaux vive et, le cas échéant, à un liant constitué par un ou plusieurs éléments liquides en vue d'obtenir un mélange homogène de granulométrie régulière, en ce que l'on soumet le mélange à maturation et, si nécessaire, à un traitement de désintégration, éventuellement combiné à un séchage, de manière à obtenir des particules désagrégées, en ce que l'on injecte ces particules dans un combusteur à lit fluidisé en même temps que de l'air porteur en veillant à maintenir lesdites particules en suspension dans la chambre de combustion par le flux d'air, au-dessus d'une flamme d'allumage en permettant la combustion intégrale du produit à haute température.