METHOD OF PURIFYING HIGH-TEMPERATURE GAS AND DUST REMOVING DEVICE FOR HIGH-TEMPERATURE GAS

摘要

PURPOSE: To prevent heat damage to a gas purifying means such as a ceramic filter by guiding a high temp. gas into a temp. stabilizing chamber accommodating a heat accumulating body which is in contact with the high temp. gas and then flowing the gas into a gas purifying apparatus. CONSTITUTION: The temp. stabilizing chamber 2 is arranged in a pressure vessel 5 and a filter apparatus 3 is provided therebelow in the same pressure vessel 5. An introducing port 8 of the compressed high temp. gas is provided in the pressure vessel 5 and the grid-shaped heat accumulating bodies 9 composed of steel bars 10 with flat flanks are arranged in the temp. stabilizing chamber 2 so that the long flanks face downward and each bar is approximately rectangular to the adjacent bars to form a grid shape. Thereby the high temp. gas of at least 400 deg.C discharged by combustion or gasification is brought into contact with the heat accumulating bodies and most of calory of the gas is transferred and accumulated in the heat accumulating bodies. Consequently, the gas sent into the filter apparatus is averaged at low thermal level and gives no thermal damage to the apparatus.