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combined apparatus particularly for the drying of granulated substances and for the control of pollution caused by the drying
combined apparatus particularly for the drying of granulated substances and for the control of pollution caused by the drying
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机译：组合设备，特别用于粒状物质的干燥以及干燥过程中污染的控制
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摘要
Meal drying pollution control apparatus including an incinerator formed with a retention chamber having a burner at the inlet thereof and joining on its downstream end with a rotary dryer. Connected with the downstream end of the rotary dryer is a recirculation conduit which bifurcates into a reheat conduit connected with the upstream end of the retention chamber adjacent the burner and a residual heat conduit connecting with the downstream end of such a chimney is connected with the retention chamber downstream of the reheat conduit for exhausting incinerated exhaust to the atmosphere. The burner is controlled to maintain the recirculated gases entering from the reheat conduit above a predetermined temperature for a selected length of time to thereby incinerate substantially all the impurities therein so the incinerated gases may be exhausted to the atmosphere without substantial pollution thereof. A temperature sensor is located at the outlet to the dryer and controls valves disposed in the residual and reheat conduits to balance flow between such conduits to maintain the desired temperature in such dryer to provide for the desired drying temperature for meal run through such dryer.
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