Conjunto de quemador de flexibilidad reforzada

• Main Authors: CONSTANTIN, Gabriel, GRAND, Benoit, BEHEN, Johan, AMIRAT, Mohand, WAGEMANS, Fabrice, TSIAVA, Rémi, DOUXCHAMPS, Olivier
• Format: Patent
• Language: Spanish
• Published: 10.02.2017
• Subjects: BLASTING; BURNERS; CHEMISTRY; COMBUSTION APPARATUS; COMBUSTION PROCESSES; GLASS; HEATING; LIGHTING; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; MECHANICAL ENGINEERING; METALLURGY; MINERAL OR SLAG WOOL; WEAPONS

Conjunto de quemador que comprende: - un bloque quemador que presenta una cara de entrada y una cara de salida (503), al menos un paso de comburente (506, 507) entre la cara de entrada y la cara de salida y al menos un paso de tubo de combustible (500, 501) entre la cara de entrada y la cara de salida, siendo el bloque quemador tal que pueden ser montados simultáneamente en el bloque quemador m tubos de combustible a través del al menos un paso de tubo de combustible (500, 501), siendo m > 1, - n tubos de primer combustible (110, 111), con n > 1, siendo apto cada tubo de primer combustible (110, 111) para ser montado en el o en uno de los pasos de tubo de combustible (500, 501) y para ser retirado del citado paso de tubo de combustible (500, 501) por la cara de entrada del bloque quemador, - un dispositivo de alimentación de comburente apto para transportar un flujo de comburente desde una fuente de comburente hacia el bloque quemador para su inyección a través del al menos un paso de comburente (506, 507) en una zona de combustión situada aguas abajo de la cara de salida (503), - un primer dispositivo de alimentación de combustible apto para transportar un flujo de un primer combustible desde una fuente de primer combustible hacia el bloque quemador para su inyección en la zona de combustión a través de uno o de los pasos de combustible (500, 501), comprendiendo el primer dispositivo de alimentación de combustible una primera tubería (100) de alimentación, un primer caudalímetro, un primer distribuidor (101) y n primeras tuberías flexibles (120, 121) que unen el primer distribuidor a los n tubos de primer combustible (110, 111), i. siendo apta la primera tubería de alimentación para transportar el flujo del primer combustible desde la fuente de primer combustible hacia el primer distribuidor, ii. siendo apto el primer caudalímetro para regular el caudal del flujo del primer combustible desde la fuente de primer combustible hacia el primer distribuidor, iii. siendo apto el primer distribuidor para repartir el flujo de primer combustible en n flujos secundarios por n primeras tuberías flexibles, caracterizado por que: - el primer dispositivo de alimentación de combustible comprende una o varias válvulas (130, 131) que permiten cerrar y abrir las n primeras tuberías flexibles una a una de manera que, cuando x de las n primeras tuberías flexibles son cerradas por las citadas una o varias válvulas, siendo 1 <= x <= n-1, el primer distribuidor reparte el flujo del primer combustible en las n-x primeras tuberías flexibles que están abiertas para su inyección en la zona de combustión por el o los tubos de primer combustible unidos a las citadas primeras tuberías flexibles abiertas. The burner assembly comprises a burner block having an inlet side and an outlet side, a passage for a combustive fuel between the inlet and out sides, n primary combustible blowing irons (111), where n is greater than 1, a device for supplying fuel towards the burner block using a fuel source by injecting the fuel through fuel passage in a combustion zone, which is present in upstream of the outlet side, a primary device for supplying fuel towards the burner block using the fuel source, p secondary combustible blowing irons, where p is greater than 1, and a secondary fuel supply device. The burner assembly comprises a burner block having an inlet side and an outlet side, a passage for a combustive fuel between the inlet and out sides, n primary combustible blowing irons (111), where n is greater than 1, a device for supplying fuel towards the burner block using a fuel source by injecting the fuel through fuel passage in a combustion zone, which is present in upstream of the outlet side, a primary device for supplying fuel towards the burner block using the fuel source, p secondary combustible blowing irons, where p is greater than 1, and a secondary device for supplying fuel towards the burner block using a second fuel source by injecting the fuel through fuel passage in the combustion zone. The burner block is present in such a manner that m combustible blowing irons are simultaneously mounted in the block through the blowing iron passage, where m is greater than 1. Each of the primary blowing irons are mounted in the blowing passages and removed from the passage through the inlet side of the block. The primary device comprises a first supply line (100), a first flow meter, a first distributor (101), n primary flexible lines connecting the first distributor with n primary combustible blowing irons, and gates (130, 131) for opening and closing the n primary flexible lines. The primary supply line transports the flow of fuel towards the first distributor. The first flow meter regulates the flow of first fuel towards the first distributor. The first distributor is adapted to distribute the flow of first fuel in n flow subsidiaries on n first flexible lines. When x number of n primary flexible lines are closed by the gates, with 1= x= n-1, the primary distributor distributes the fuel on n-x primary flexible lines, which are opened for its injection in the combustion zone through the blowing irons connected to the primary flexible line (121) openings. Each of the secondary blowing irons are mounted in the blowing passages and removed from the passage through the inlet side of the block. The secondary supply device comprises a second supply line, a second flow meter, a second distributor, p primary flexible lines connecting the second distributor with p secondary combustible blowing irons, and gates for opening and closing the p secondary flexible lines. The secondary supply line transports the flow of fuel towards the second distributor. The second flow meter regulates the flow of second fuel towards the second distributor. The second distributor is adapted to distribute the flow of second fuel in p flow subsidiaries on p first flexible lines. When y number of p secondary flexible lines are closed by the gates, with 1= y= p-1, the secondary distributor distributes the fuel on p-y secondary flexible lines, which are opened for its injection in the combustion zone through the blowing irons connected to the secondary flexible line openings. The assembly undergoes one or more conditions including n=m, n=m+1, n=p, p=m, p=m+1 and m=2. The combustive fuel has an oxygen content of 90 vol.%. One of the flows of fuel is a flow of secondary fuel injected into the combustion zone through combustion passage located at a distance ds greater than 0 or the passages of blowing irons. One of the flow of fuel is a flow of primary fuel injected in the combustion zone through combustible iron passages or fuel passage situated at a distance dp of the passage of the combustible irons, where dp less than ds. The burner block is an assembly of refractory bricks, and is mounted in a wall of a furnace. The combustion zone in upstream of the outlet side is situated inside the furnace. An independent claim is included for a process for combustion using burner assembly.