. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . t a waste of valuable ma-terial. Moreover they also frequentlyconstitute a nuisance. There are severalmechanical and chemical methods for col-lecting this loss, but they are in generallimited. Temperature, acidity, etc., affectthem. The electrical precipitation proc-ess has very few limitations and can begenerally applied for collecting suspendedsolid and liquid particles of every descrip-tion, whether acid or alkaline, and fromgases of widely varying temperature. The electrical process has b
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . t a waste of valuable ma-terial. Moreover they also frequentlyconstitute a nuisance. There are severalmechanical and chemical methods for col-lecting this loss, but they are in generallimited. Temperature, acidity, etc., affectthem. The electrical precipitation proc-ess has very few limitations and can begenerally applied for collecting suspendedsolid and liquid particles of every descrip-tion, whether acid or alkaline, and fromgases of widely varying temperature. The electrical process has been usedsuccessfully in lead smelters and coppersmelters, to coll-ect the metal from thestacks and to eliminate smoke nuisances;in cement plants to collect potash and ce-ment dust; in acid plants to recover acidfumes; also in rock crushers to suppressthe dust; in iron blast furnaces to elimi-nate the ore dust and to recover potash ; rent connected to the treater. thefamiliar smoke clouds can be seen Cum-ing from the stack, but with the currenton the smoke has vanished and just the S:acl/?■ ., _^. 2. . OF ELEC-TRICAL PRECIPITATION PIPE TREATER trace of a vapor can be seen. The finalproof of the effectiveness is the carloadsof dust taken from the collecting bins. Before describing the process and theapparatus more in detail, two examplesof what can be obtained by the installa-tion of this apparatus are given. Theseexamples give some idea of the econo-mies to he gained, and the great waste of
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