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High-temperature and abrasion resisting high manganese material for circulating fluidized bed boiler
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A technology of circulating fluidized bed and high temperature resistance, applied in the field of materials, can solve the problems of restricting the popularization and application of circulating fluidized bed boilers, and achieve excellent high temperature corrosion resistance and high temperature abrasion resistance
Inactive Publication Date: 2017-03-08
WUXI MINGSHENG TEXTILE MACHINERY
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Problems solved by technology
This defect has not been well resolved, which limits the further popularization and application of circulating fluidized bed boilers.
Method used
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Embodiment 1
[0015] A high temperature resistant and anti-abrasion material for a circulating fluidized bed boiler, characterized in that the material includes by mass percentage:
[0016] Nb 2.2, Si 1.34, Cr 16, Mn 10, Mo 0.5, Cu 1.2, V 0.1, Ti 0.02, Al 0.5, W 0.5, the balance Fe.
Embodiment 2
[0018] A high temperature resistant and anti-abrasion material for a circulating fluidized bed boiler, characterized in that the material includes by mass percentage:
[0019] Nb 3.4, Si 2.5, Cr 25, Mn18, Mo 1, Cu 2, V 0.3, Ti 0.2, Al 1.5, W 1.5, the balance of Fe.
Embodiment 3
[0021] A high temperature resistant and anti-abrasion material for a circulating fluidized bed boiler, characterized in that the material includes by mass percentage:
[0022] Nb 3, Si 2, Cr 16-25, Mn 15, Mo 0.8, Cu 1.5, V 0.2, Ti 0.1, Al 1, W 1, the balance Fe.
[0023] The high-temperature-resistant and anti-abrasion material for the circulating fluidized bed boiler described in Examples 1-3 has excellent high-temperature corrosion resistance and high-temperature abrasion resistance. After 100 hours of application, no obvious abrasion is seen.
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Abstract
The invention discloses a high-temperature and abrasion resisting high manganese material for a circulating fluidized bed boiler. The material comprises the following components in percentage by mass: 2.2-3.4 of Nb, 1.34-2.5 of Si, 16-25 of Cr, 10-18 of Mn, 0.5-1 of Mo, 1.2-2 of Cu, 0.1-0.3 of V, 0.02-0.2 of Ti, 0.5-1.5 of Al, 0.5-1.5 of W, and the balance of Fe. The circulating fluidized bed boiler prepared by the material is excellent in high-temperature corrosion resistance and high-temperature abrasion resistance.
Description
technical field [0001] The invention relates to the technical field of materials, in particular to a high-temperature-resistant and abrasion-resistant high-manganese material for a circulating fluidized bed boiler. Background technique [0002] The difference between a circulating fluidized bed boiler and a conventional boiler is that its combustionsystem is different. Gas-solidmaterial separation equipment and solid material recirculation equipment are the main features of circulating fluidized bed boilers. The combustion of circulating fluidized bed boiler includes two processes of internal circulation and external circulation. The internal circulation is the circulation process in the furnace, that is, the flue gas moving at high speed in the furnace is in close contact with the solid particles with strong turbulent disturbance, and there are a large number of Fluidized combustion reaction process with particle backmixing. The outer circulation is the process of collec...
Claims
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Application Information
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