Operation method of medium-pressure waste heat recovery device in start-up stage of crushed coal pressure gasification device
The invention belongs to the technical field of coal gasification, and discloses an operation method of a medium-pressure waste heat recovery device in the start-up stage of a crushed coal pressure gasification device. Before 4.5 MPa and 450 DEG C high-pressure steam is introduced into a crushed coa...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
05.11.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the technical field of coal gasification, and discloses an operation method of a medium-pressure waste heat recovery device in the start-up stage of a crushed coal pressure gasification device. Before 4.5 MPa and 450 DEG C high-pressure steam is introduced into a crushed coal pressurized gasification furnace for pipe warming of a crushed coal pressurized gasification device, when 4.5 MPa and 450 DEG C high-pressure steam is introduced into the crushed coal pressurized gasification furnace for pipe warming of the crushed coal pressurized gasification device, when air ignition is performed on the crushed coal pressurized gasification device, and when oxygen cutting is performed on the crushed coal pressurized gasification device, the opening degree of related valves of the medium-pressure waste heat boiler and the steam pocket during grid connection of the gasification furnace enables high-temperature steam to be in slow contact with cold-state metal, so that a large amount of condensat |
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Bibliography: | Application Number: CN202110990605 |