Abrégé

Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the pellets; (3) subjecting the reduced metallized pellets to water quenching-ore grinding-magnetic separation treatments to obtain a nickel iron powder and tailings; and (4) bringing the nickel iron powder into contact with carbon monoxide for reaction, and then performing purification and decomposition treatments so as to obtain the carbonyl nickel powder, with the carbon monoxide being recycled, wherein the use of the high-sulphur coal results in a highly active nickel iron powder, it is not necessary to add any catalyst in the process of producing the carbonyl nickel powder, and the synthesis efficiency is high.

Classes IPC  ?

• C22B 1/00 - Traitement préliminaire de minerais ou de débris ou déchets métalliques
• C22B 5/00 - Procédés généraux de réduction appliqués aux métaux
• C22B 23/00 - Obtention du nickel ou du cobalt
• C01G 53/02 - Carbonyles

Abrégé

Provided are a melting separation furnace and a method for treating a material to be melted and separated with the melting separation furnace. The melting separation furnace comprises a melting separation furnace body (100), which has a melting separation space (10) inside, wherein the bottom of the melting separation space (10) defines a melting pool (11), a feeding zone (12), a melting zone (13), a separation zone (14) and a discharge zone (15) are formed successively in the melting separation space (10) along a melt flow direction, the feeding zone (12) is located at one end of the melting separation furnace body (100), the discharge zone (15) is located at the other end of the melting separation furnace body (100), a feeding port (101) is provided on a side wall of the feeding zone (12), and a discharge port (102) and a slag exit (103) are provided on a side wall of the discharge zone (15); and first regenerative burners (200), wherein at least one pair of first regenerative burners (200) are provided correspondingly at the melting zone (13), each pair of first regenerative burners (200) are arranged on the opposite side walls of the melting separation furnace body (100), and each first regenerative burner (200) comprises a nozzle (22), a fuel gas slag chamber (23), an air slag chamber (24), and a fuel gas regenerative chamber (25) and an air regenerative chamber (26); and second regenerative burners (300), wherein at least one pair of second regenerative burners (300) are provided correspondingly at the separation zone (14), and each pair of second regenerative burners (300) are arranged on the opposite side walls of the melting separation furnace body (100).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

Provided are a melting separation furnace and a method for treating a material to be melted and separated with the melting separation furnace. The melting separation furnace comprises a melting separation furnace body (100), wherein a melting separation space (10) is inside the melting separation furnace body (100), the bottom of the melting separation space (10) defines a melting pool (11), a feeding zone (12), a melting zone (13), a separation zone (14) and a discharge zone (15) are formed successively in the melting separation space (10) along a melt flow direction, the feeding zone (12) is located at one end of the melting separation furnace body (100), the discharge zone (15) is located at the other end of the melting separation furnace body (100), a feeding port (101) is provided on a side wall of the feeding zone (12), and a discharge port (102) and a slag exit (103) are provided on a side wall of the discharge zone (15); and a plurality of regenerative burners (200), wherein the plurality of regenerative burners (200) are respectively arranged on side walls of the melting separation furnace body (100), both the melting zone (13) and the separation zone (14) are correspondingly provided with at least one pair of regenerative burners (200), and each pair of regenerative combustors (200) are arranged on the opposite side walls of the melting separation furnace body (100).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the pellets; (3) subjecting the reduced metallized pellets to water quenching-ore grinding-magnetic separation treatments to obtain a nickel iron powder and tailings; and (4) bringing the nickel iron powder into contact with carbon monoxide for reaction, and then performing purification and decomposition treatments so as to obtain the carbonyl nickel powder, with the carbon monoxide being recycled, wherein the use of the high-sulphur coal results in a highly active nickel iron powder, it is not necessary to add any catalyst in the process of producing the carbonyl nickel powder, and the synthesis efficiency is high.

Classes IPC  ?

• C22B 1/00 - Traitement préliminaire de minerais ou de débris ou déchets métalliques
• C22B 5/00 - Procédés généraux de réduction appliqués aux métaux
• C22B 23/00 - Obtention du nickel ou du cobalt
• C01G 53/02 - Carbonyles

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a fluidized bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; performing desulfurization and decarburization processing on the reduction exhaust to obtain a purified reduction exhaust; and introducing the purified reduction exhaust into the fluidized bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore powder.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore pellets in a mobile bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; performing desulfurization and decarburization processing on the reduction exhaust to obtain a purified reduction exhaust; and introducing the purified reduction exhaust into the mobile bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and obviously improving the reduction efficiency of the ore powder.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a conveying bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; performing desulfurization and decarburization processing on the reduction exhaust to obtain a purified reduction exhaust; and introducing the purified reduction exhaust into the conveying bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore powder.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a conveying bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; mixing the reduction exhaust with the reducing gas and then performing desulfurization and decarburization processing to obtain a purified gas mixture; and introducing the purified gas mixture into the conveying bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore powder.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a fluidized bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; and introducing the reduction exhaust into the fluidized bed reduction reactor (200). The introducing the reduction exhaust into the fluidized bed reduction reactor (200) also comprises: mixing the reduction exhaust with the reducing gas in advance and then performing desulfurization and decarburization processing to obtain a purified gas mixture; and introducing the purified gas mixture into the fluidized bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and obviously improving the reduction efficiency of the ore powder.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore pellets in a mobile bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; mixing the reduction exhaust with the reducing gas and then performing desulfurization and decarburization processing to obtain a purified reduction exhaust ; and introducing the purified reduction exhaust into the mobile bed reduction reactor (200). By using the method, ore pellets can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore pellets.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

A catalytic purification and heat exchange system comprises: a housing, a heat exchanger main body, a partition member, heat carriers, a fume passage, and an air passage, wherein the housing defines a chamber. The heat exchanger main body is disposed in the chamber and is rotatable around a central axis of the heat exchanger main body. The partition member is disposed in the heat exchanger main body along the central axis, and divides the heat exchanger main body into a first accommodating portion and a second accommodating portion opposite to each other. The heat carriers contain catalysts, and are respectively accommodated in the first accommodating portion and the second accommodating portion. The fume passage is arranged to be communicated with one of the first accommodating portion and the second accommodating portion. The air passage is arranged to be communicated with the other one of the first accommodating portion and the second accommodating portion, so that air exchanges heat with the heat carrier accommodated therein.

Classes IPC  ?

• F28D 17/02 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p. ex. en utilisant des particules granulées utilisant des masses rigides, p. ex. d'un matériau poreux
• F28D 17/00 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p. ex. en utilisant des particules granulées

Abrégé

A powdered solid fuel boiler equipped with a regenerative rotating commutating heater comprises a hearth, a regenerative rotating commutating heater, a fume passage, and an air passage. An inlet end of the fume passage is communicated with a top portion of the hearth, and an outlet end of the fume passage is communicated with the regenerative rotating commutating heater. The regenerative rotating commutating heater comprises heat carriers which are respectively accommodated in accommodating portions. The heat carriers are made of non-metallic solid materials, and are provided with denitration catalyst layers. The air passage is used for delivering air at least into the other one of the paired accommodating portions.

Classes IPC  ?

• F22B 31/08 - Installation dans la chaudière d'appareils échangeurs de chaleur ou de moyens de réchauffage de l'air de combustion
• F23L 15/00 - Réchauffage de l'air de combustion
• B01D 53/86 - Procédés catalytiques
• B01D 53/56 - Oxydes d'azote

Abrégé

A powdered solid fuel boiler and a dry purification process system (100). The powdered solid fuel boiler (1) comprises: a hearth (11); a regenerative rotating commutating heater (2); a first fume passage (3), wherein an inlet end of the first fume passage (3) is communicated with a top portion of the hearth (11), and an outlet end of the first fume passage (3) is communicated with the regenerative rotating commutating heater (2), so that fume is delivered into one of at least paired accommodating portions (25) of a heat exchanger main body (21) and exchanges heat with a heat carrier (23) accommodated in the accommodating portion (25); an air passage (4), used for delivering air at least into the other one of the paired accommodating portions (25) of the heat exchanger main body (21), so that a heat carrier (23) accommodated in the accommodating portion (25) exchanges heat with air, and the air after heat exchange is supplied into the hearth (11); and a WCFB fume desulfurization device (5), wherein a part of the fume after desulfurization is re-circulated into a second fume passage (101). By means of the powdered solid fuel boiler and the dry purification process system, the fume exhaust temperature is reduced; the efficiency of the boiler, the desulfurization efficiency, and the fume purification rate are improved; and the influence of corrosion is lowered.

Classes IPC  ?

• F23C 10/00 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules
• B01D 53/50 - Oxydes de soufre
• F28D 19/00 - Appareils échangeurs de chaleur de régénération dans lesquels l'agent ou la masse intermédiaire de transfert de chaleur est amené successivement en contact avec chacune des sources de potentiel calorifique
• F28D 11/02 - Appareils échangeurs de chaleur utilisant des canalisations mobiles le mouvement étant rotatif, p. ex. effectué par un tambour ou un cylindre
• F23L 15/02 - Aménagements des régénérateurs

Abrégé

A gas heat exchanger (100) and a gas heat exchange system (200) having same. The gas heat exchanger (100) comprises a heat exchanger main body (1), a partition member (2), and a central shaft (10), wherein the partition member (2) is disposed in the heat exchanger main body (1) along the central shaft (10), and divides the heat exchanger main body (1) into at least one pair of accommodating portions (11, 12), and each pair of accommodating portions (11, 12) is oppositely and radially arranged relative to the central shaft (10). Heat carriers (111, 121) are respectively accommodated in each pair of accommodating portions (11, 12). The heat carriers (111, 121) are made of non-metallic solid materials, and have small spherical, plate-like, or porous structures.

Classes IPC  ?

• F28D 19/00 - Appareils échangeurs de chaleur de régénération dans lesquels l'agent ou la masse intermédiaire de transfert de chaleur est amené successivement en contact avec chacune des sources de potentiel calorifique
• F23L 15/00 - Réchauffage de l'air de combustion

Abrégé

A pellet fuel boiler (100) equipped with a regenerative rotating commutating heater. The pellet fuel boiler (100) comprises a hearth (11), a regenerative rotating commutating heater (2), a fume passage (3), and an air passage (4). The regenerative rotating commutating heater (2) comprises a heat exchanger main body (21), a driving device, a partition member (22), and heat carriers (23). An inlet end of the fume passage (3) is communicated with a top portion of the hearth (11), and an outlet end of the fume passage (3) is communicated with the regenerative rotating commutating heater (2), so that fume is delivered into one of at least paired accommodating portions (25) of the heat exchanger main body (21) and exchanges heat with the heat carrier (23) accommodated in the accommodating portion (25). The air passage (4) is used for delivering air at least into the other one of the paired accommodating portions (25) of the heat exchanger main body (21), so that the heat carrier (23) accommodated in the accommodating portion (25) exchanges heat with air, and the air after heat exchange is supplied into the hearth (11). The pellet fuel boiler (100) can recycle sensible heat and latent heat in the fume to the maximum extent, thereby improving thermal efficiency of the boiler.

Classes IPC  ?

• F23C 10/04 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules avec des moyens spécialement adaptés pour obtenir ou activer un mouvement de circulation des particules à l'intérieur du lit ou pour remettre en circulation les particules entraînées à l'extérieur du lit les particules étant entraînées vers une section, p. ex. une section d'échange de chaleur ou une conduite de retour, au moins partiellement séparée de la zone de combustion, avant d'être réintroduites dans la zone de combustion
• F28D 19/00 - Appareils échangeurs de chaleur de régénération dans lesquels l'agent ou la masse intermédiaire de transfert de chaleur est amené successivement en contact avec chacune des sources de potentiel calorifique
• F28D 11/02 - Appareils échangeurs de chaleur utilisant des canalisations mobiles le mouvement étant rotatif, p. ex. effectué par un tambour ou un cylindre
• F23L 15/02 - Aménagements des régénérateurs

Abrégé

A process system (100) for performing dry desulfurization on fume of a pellet fuel boiler. The system comprises: a pellet fuel boiler (1) defining a hearth (11); a regenerative rotating commutating heater (2); a first fume passage (3), wherein an inlet end of the first fume passage (3) is communicated with a top portion of the hearth (11), and an outlet end of the first fume passage (3) is communicated with the regenerative rotating commutating heater (2), so that fume is delivered into one of at least paired accommodating portions (25) of a heat exchanger main body (21) and exchanges heat with a heat carrier (23) accommodated in the accommodating portion (25); an air passage (4), used for delivering air at least into the other one of the paired accommodating portions (25) of the heat exchanger main body (21), so that a heat carrier (23) accommodated in the accommodating portion (25) exchanges heat with air, and the air after heat exchange is supplied into the hearth (11); and a WCFB fume desulfurization device (5). By means of the pellet fuel boiler and the dry desulfurization process system, the fume exhaust temperature is low, the boiler has high efficiency, the process is optimized, the cost is saved, and the influence of corrosion is lowered.

Classes IPC  ?

• B01D 53/50 - Oxydes de soufre
• F23C 10/00 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules
• F28D 19/00 - Appareils échangeurs de chaleur de régénération dans lesquels l'agent ou la masse intermédiaire de transfert de chaleur est amené successivement en contact avec chacune des sources de potentiel calorifique
• F28D 11/02 - Appareils échangeurs de chaleur utilisant des canalisations mobiles le mouvement étant rotatif, p. ex. effectué par un tambour ou un cylindre
• F23L 15/02 - Aménagements des régénérateurs

Abrégé

A gas-extractable pulverized coal boiler (100) comprises a boiler main body (1) defining a hearth (11); a regenerative rotating commutating heater (2); a fume passage (3), wherein an inlet end of the fume passage (3) is communicated with the hearth (11) and an outlet end of the fume passage (3) is communicated with the regenerative rotating commutating heater (2), so that fume in the hearth (11) is delivered into one of at least paired accommodating portions (25) and exchanges heat with a heat carrier (23) accommodated in the accommodating portion (25), and multiple superheaters are provided in the fume passage (3); an air passage (4), used for delivering air at least into the other one of the paired accommodating portions (25), so that a heat carrier (23) accommodated in the accommodating portion (25) exchanges heat with air; a high-temperature gas-extracting passage (5), wherein one end of the high-temperature gas-extracting passage (5) is communicated with one end of the fume passage (3) facing the hearth (11), and the other end of the high-temperature gas-extracting passage (5) is communicated with the outlet end of the fume passage (3); and a gas-extracting control unit (51), used for controlling a first amount of fume supplied through the high-temperature gas-extracting passage (5). By means of the pulverized coal boiler, the air preheating temperature is raised and controllable operation is achieved, the thermal efficiency of the boiler is improved, and the problem of operation stability and reliability of a large-scale boiler which carries out power generation with a low volatile content is solved.

Classes IPC  ?

• F23B 80/00 - Appareils à combustion caractérisés par des moyens pour créer un trajet d'écoulement distinct pour les gaz brûlés ou pour les gaz imbrûlés dégagés par le combustible
• F23J 15/08 - Aménagement des dispositifs de traitement de fumées ou de vapeurs des appareils de chauffage
• F22B 37/06 - Carneaux ou tubes de fuméesAccessoires à cet effet, p. ex. garnitures de fixation des tubes de fumées
• F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion

Abrégé

A rotary heating apparatus comprising: a main body (10) defining a hollow cavity (11); a rotary cloth bed (20), disposed in the hollow cavity (11) and comprising a rotary material table (21) and a support column (22); a plurality of upper radiant tube burners (30); and a plurality of lower radiant tube burners (40), wherein fuel gas inlet pipes (31, 41), combustion air inlet pipes (32, 42), and exhaust pipes (33, 43) for discharging waste gas after combustion are respectively formed on a part of the upper radiant tube burners (30) and the lower radiant tube burners (40) located outside the main body (10).

Classes IPC  ?

• C10B 47/00 - Distillation destructive des matières carbonées solides avec chauffage indirect, p. ex. par combustion externe
• C10B 53/00 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale
• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F27B 9/00 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité