摘要:
The invention relates to a system which includes a boiler (1), sets of main burners (2F, 2E, 2D, 2C) located at various levels or areas through which pulverised solid fuel is injected into the boiler (1), and main mills (3F, 3E, 3D, 3C) of solid fuel, each one of which is connected to each one of the sets of main burners (2F, 2E, 2D, 2C) to which a flow of solid fuel is directed. Furthermore, the invention includes a replacement mill (3B) intended for operating only on the set of main burners (2F, 2E, 2D, 2C) whose associated main mill (3F, 3E, 3D, 3C) has shut down, as well as a permanently operational backup mill (3A) which directs an additional flow of solid fuel towards the selected set(s) of main burners (2F, 2E, 2D, 2C), complementing the flow of solid fuel provided by the main mills (3F, 3E, 3D, 3C).
摘要:
A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes through oxygen-injection holes formed in the fuel supply tube and then mixes with fluidized, pulverized, solid fuel passing through the fuel supply tube to create an oxygen-fuel mixture in a downstream portion of the fuel supply tube. This mixture is discharged into the flame chamber and ignited in a flame chamber to produce a flame.
摘要:
A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes through oxygen-injection holes formed in the fuel supply tube and then mixes with fluidized, pulverized, solid fuel passing through the fuel supply tube to create an oxygen-fuel mixture in a downstream portion of the fuel supply tube. This mixture is discharged into the flame chamber and ignited in a flame chamber to produce a flame.
摘要:
For a device for conveying pneumatically conveyed fuels, in particular solid secondary fuels for burners for rotary kilns, comprising a central conveying pipe (1), which has an open end having an outlet opening (2) for the pneumatically conveyed fuels and an opposite end region, in which the fuels are transferred to the conveying pipe (1), at least one line (6, 7, 9) connected to an air supply opens into the interior of the conveying pipe (1) adjacently to the outlet opening of the conveying pipe (1) such that said line is directed forward at an angle.
摘要:
A solids supply system having a solids deaeration zone and a solids pump zone, and a method for supplying the solids e.g., pulverized dry coal, to an application, e.g., gasification process. The solids deaeration zone includes a container having a passageway defined by one or more sloped walls. The solids deaeration zone is operable to deaerate and convey the solids to the solids pump zone. In the solids deaeration zone, the solids become sufficiently compacted prior to and upon entry into the solids pump zone to be effectively conveyed through the solids pump zone.
摘要:
Die Aufgabe eine Vorrichtung sowie ein Verfahren zur Einbringung von Brennstoffen oder Sekundärbrennstoffen in eine Verbrennungsanlage zu schaffen, bei der die Einbringung von Brennstoffen/Sekundärbrennstoffen in die Verbrennungsanlage unter möglichst konstanten Bedingungen erfolgt, wird nach der vorliegenden Erfindung gelöst durch druckbeaufschlagtes Einbringen eines Förderfluids in die Zuführungsvorrichtung in einer Weise, dass der Volumenstrom der Brennstoffe in eine rotierende Wirbelbewegung versetzt wird. Dabei kann der Förderfluid-Strom zur Konditionierung, insbesondere zur Auflockerung des Volumenstroms der Brennstoffe/Sekundärbrennstoffe ausgenutzt werden. Die erfindungsgemäße Zuführungsvorrichtung kann die Effizienz und die Leistung einer Verbrennungsanlage verbessern, indem die Parameter zur Dosierung der Brennstoffe, des Brenners und des Brennprozesses in ein geeignetes Verhältnis gebracht werden können.