English to Russian Tech/Engineering Metallurgy / Casting Система газоочистки

название секции газохода без водяного охлаждения - это надпись на чертеже

Описание можно найти здесь
Exhaust gases are delivered from the second duct section to an inlet of combustion chamber 26, where further combustion of CO and H2 occurs. The combustion chamber is also referred to as a dropout box because it receives and retains slag and certain other large particulate matter that is entrained with the EAF exhaust gases. Assuming a sufficient amount of oxygen has been provided within the EAF and EAF exhaust duct section upstream of the combustion chamber (e.g., by drawing a suitable amount of air through the EAF and into the EAF exhaust duct section), gases leaving through the outlet of the combustion chamber will be substantially free of CO and H2. A third water cooled duct section 28 extends from the combustion chamber outlet and transitions to a fourth dry (i.e., not water cooled) duct section 30. The fourth duct section merges with canopy vacuum line 6 at a location upstream from the bag-house inlet. Combustion of residual CO and H2 can occur in the third duct section, and the length of the third duct section is selected to ensure sufficient cooling of gases below a threshold temperature (e.g., 1200° F.) prior to entering the fourth dry duct section.
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The fourth dry duct section 30 includes an adjustable EAF exhaust damper 32 (e.g., a butterfly valve) and an adjustable dilution air damper 34 (e.g., a butterfly valve) disposed downstream from the EAF exhaust damper. The EAF exhaust damper controls the amount of suction applied by ID fan 44 to EAF 100 and EAF exhaust duct section 20 during system operation. The dilution air damper selectively controls an amount of air to be drawn into duct section 30 to further cool the gases prior to entering bag-house 40.

вот ссылка на патент, из которого взято описание: https://patents.google.com/patent/US20040017837A1/en