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US 12,741,300 B2Granted
Detoxification device and nozzle scraper
AssigneeEdwards Japan Limited
InventorsKatsunori Takahashi, Masahiro Tanaka
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Abstract
A detoxifying device of a structure wherein the deposits can be removed cleanly, without leaving residue, even for a nozzle that is provided with a narrow diameter portion and a wide diameter portion that is further to the downstream side than the narrow diameter portion, and to provide a nozzle scraper used in said detoxifying device.
Claims5
A detoxifying device for detoxifying, through combustion or thermal decomposition within a combustion chamber, a process gas that includes a toxic component, comprising:
- a nozzle that comprises a narrow diameter portion and a wide diameter portion that is provided further to the downstream side than the narrow diameter portion, said nozzle connected to the top face of the combustion chamber, for introducing the process gas into the combustion chamber;
- a nozzle scraper that is able to move upward and downward within a prescribed movement range within the wide diameter portion, to remove deposits adhered within the wide diameter portion;
- and
- a head scraper for removing the deposits that are adhered to a lower portion of the nozzle scraper, at the bottommost position of the range of movement thereof, wherein:
- the nozzle scraper has:
- a scraping portion for removing the deposits that are adhered to the inner wall of the wide diameter portion;
- and
- a protruding portion that is provided at the bottom end of the narrow diameter portion at the topmost position of the movement range.
5 more elements
Dependencies are inferred from the claim text.