首页>
外国专利>
method for cleaning of exhaust gas from drying, and installation for implementation of the procedure.
method for cleaning of exhaust gas from drying, and installation for implementation of the procedure.
展开▼
机译:用于清洁干燥废气的方法,以及用于执行该程序的装置。
展开▼
页面导航
摘要
著录项
相似文献
摘要
The dew point of the exhaust gas is firstly reduced to a value in the range of 60 DEG -65 DEG C. Thereafter the exhaust gas flows through a washing and condensing apparatus. A part of the prepurified condensate is recirculated in a loop for carrying out the latter-mentioned washing. Thereafter the gas flows through a wet-deep bed filter apparatus. The sprinkler apparatus belonging thereto is fed again by a partly purified liquid. A drying chamber follows the wet-deep bed filter apparatus. The gas is then finally purified in an electro-filter plant. The condensate in the washing and condensing apparatus, to which also the washing liquid stemming from the sprinkler apparatus of the wet-deep-filter apparatus is added, is fed to a flotation plant. This condensate-liquid mixture has an increased temperature such that a better working in the flotation plant is obtained. The liquid flows thereafter through a biological treatment plant, a repurification apparatus, a sand filter apparatus and finally through an ultrafiltration apparatus. Between the individual liquid treatment apparatuses and plants, respectively, a part of the liquid is branched off and is fed in a closed loop fashion back to other apparatuses or plants in order to carry out purifying or cleaning, respectively, functions thereat. This allows an extremely economical operation of the entire apparatus.
展开▼