| 摘要 |
A waste gas purifying device employing an intermediate exhaust fan (11) and a pump (3) to suck the waste gas flowing through a chimney (2) into at least one washing tank (4). The washing tank contains a washing liquid which can remove the particles or toxic gas in the waste gas, the purified gas being then discharged back to the chimney via line (5). More than one washing tank may be used. The chimney may have throttle (21) to guide gas to the washing system. Bubble breaker (44) is provided adjacent to the end of the gas inlet pipe in tank (4) to produce fine bubbles and hence better contact. The liquid in the tank may be sodium carbonate for removing oily or acidic contaminants. <IMAGE>
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