Combined-type thermal-oxidation igniting process nozzle for gasifying solid powder fuel

A technology for fuel gasification and process burners, which is applied in the direction of granular/powder fuel gasification, burners, lighting and heating equipment, etc. The effect of prolonging the service life and making maintenance convenient
CN102767827BActive Publication Date: 2015-04-08SHANGHAI BOILER WORKS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI BOILER WORKS
Publication Date
2015-04-08

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Abstract

The invention provides a combined-type thermal-oxidation igniting process nozzle for gasifying solid powder fuel. The combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel is characterized by comprising a central passage, a thermal-oxidation spray gun fuel passage circularly shaped is uniformly arranged outside the central passage, a side gasifying agent inlet is reserved on the outer wall of the thermal-oxidation spray gun fuel passage, a thermal-oxidation spray gun burner is arranged inside the thermal-oxidation spray gun fuel passage, and a gasifying agent spraying nozzle is arranged on the head portion of the thermal-oxidation spray gun burner. An outer metal wall of a thermal-oxidation passage coaxial with the central passage is arranged outside the thermal-oxidation spray gun fuel passage, an inner metal wall of a cooling jacket is coaxially arranged outside of the outer metal wall of the thermal-oxidation passage, and an outer metal wall of the cooling jacket is coaxially arranged outside the inner metal wall of the cooling jacket via a middle tube wall of the cooling jacket. By the aid of the combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel, defects in the prior art are overcome, a start working nozzle and the process nozzle are integrated, and the whole igniting process of a gasification furnace is simplified. The combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel has the advantages of multiple functions, wide applications, long service life and the like.
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Description

technical field

[0001] The invention relates to a compound thermal oxygen ignition process burner for solid powder fuel gasification, belonging to the technical field of process burners. Background technique

[0002] The early thermo-oxygen combustion technology was applied in the iron and steel industry and a small amount of pulverized coal furnace generator sets. For example, the US patent US3661561 applied the thermo-oxygen technology to the blast furnace aluminum smelting, raising the oxygen to above 1000 Β°C. U.S. Patent US4928605 built a thermal oxygen spray gun burner into the fuel burner to form an internal mixing fuel burner, which can be used as a burner for a pulverized coal furnace, which uses thermal oxygen technology to form a stable pulverized coal combustion flame . Chinese patent CN200980125201.1 proposes a thermal oxygen generating device, which uses a central channel to install a flame-retardant nozzle to heat the oxygen in the annulus to provide high-temp...

Claims

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