| 单词 | reverberatory furnace |
| 例句 | Here the sulphate, if it existed in the alkali, is decomposed by the silicic acid, and the sulphuric acid passes off through the flues of the reverberatory furnace. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z The red hot stones in Gaul were probably as much figments of imagination as was the assumption of one commentator that they were a reverberatory furnace. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z The calcination, or roasting, is conducted at a low temperature in some form of reverberatory furnace. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z By the continued oxidation of litharge in reverberatory furnaces, red lead is produced as a brilliant red pigment with a specific gravity of 8.7. Paint Technology and Tests 2011-09-15T02:00:12.263Z This is especially necessary in the case of reverberatory furnaces, which are essentially weak structures, and therefore require to be bound together by complicated systems of tie rods and uprights or buck staves. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z This may be effected in crucibles, or, still better, in reverberatory furnaces, where a large quantity may be melted more conveniently. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z The fine metal, obtained in the manner we have described, is next broken into pieces, and subjected to heat in a reverberatory furnace. The American Quarterly Review No. XVIII, June 1831 (Vol 9) 2011-04-02T02:00:12.460Z The first apparatus, a reverberatory furnace burning wood, was found to be entirely insufficient, and was replaced by a chamber of combustion filled with incandescent gas, much more elaborate in construction. Paris From the Earliest Period to the Present Day; Volume 2 A similar operation is conducted when arsenic is present; basic-lined reverberatory furnaces have been used for the same purpose. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" According to the purposes to which they are applied, reverberatory furnaces may be classed into two groups, namely, fusion or melting furnaces, and calcining or wasting furnaces, also called calciners. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z It is especially used for drying hops and malt, and in blast furnaces where a high temperature is required, but it is not suited for reverberatory furnaces. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" It has been attempted in New-Jersey to lessen the expense attending these heats, by performing them in reverberatory furnaces. The American Quarterly Review No. XVIII, June 1831 (Vol 9) 2011-04-02T02:00:12.460Z For a length of 1,240 feet we perceive on one side a series of rolling machines, and on the other a row of reverberatory furnaces that occasionally give out a dazzling light. Scientific American Supplement, No. 488, May 9, 1885 The ore is under better control than is possible with the continuous feed and discharge, and when sufficiently roasted can be passed red-hot to the reverberatory furnace. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" The crushings are then roasted in the ordinary way in a reverberatory furnace and the whole of the roastings are passed through the machine we have just described. Scientific American Supplement, No. 620, November 19,1887 The bicarbonate was placed in a reverberatory furnace, where the heat drove off the water and one equivalent of carbonic acid, leaving the alkali as monocarbonate. Scientific American Supplement, No. 613, October 1, 1887 This constant employment cannot be given by fewer than eighteen reverberatory furnaces, and the first cost of the works will not be less than $100,000, of which the machinery alone costs $50,000. The American Quarterly Review No. XVIII, June 1831 (Vol 9) 2011-04-02T02:00:12.460Z During the first stage of the process this iron is melted down to a fluid bath in the bottom of a reverberatory furnace. Scientific American Supplement, No. 441, June 14, 1884. The calcination is effected in reverberatory furnaces, or in muffle furnaces, if the sulphur is to be recovered. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" When the one happens to be mixed with copper or other metals which prevent its reduction to powder, it is roasted or calcined in an oven or reverberatory furnace, and pounded over again. A General History and Collection of Voyages and Travels, Volume 11 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time Over there, at the back of the foundry, in the reverberatory furnace, the alloy of copper and tin, in the proportions of 78 and 22 per cent., is in fusion. Scientific American Supplement, No. 832, December 12, 1891 This mixture is placed in a reverberatory furnace, and subjected to a high temperature, while plenty of air is supplied. Scientific American Supplement, No. 829, November 21, 1891 The following ingredients are heated in a reverberatory furnace until fusion becomes quieted: 1,260 pounds white sand, 660 pounds potash of 78°. Scientific American Supplement, No. 483, April 4, 1885 Blake’s and Brunton’s furnaces are reverberatory furnaces with a movable bed. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" He is built of the same kind of matter as the earth and other planets, but is hotter than the hottest electric arc or reverberatory furnace. A Trip to Venus We happened to visit the melting-house one evening, while silver and lead were being separated by oxidizing the lead in a reverberatory furnace. Anahuac : or, Mexico and the Mexicans, Ancient and Modern Impurities are burned out from pig-iron in an open reverberatory furnace, by constantly stirring the metal in contact with air. An Introduction to Chemical Science The furnace is fired with coal on a grated hearth, built at the lower end; it is more economical both in fuel and in labour than an ordinary reverberatory furnace. Getting Gold: a practical treatise for prospectors, miners and students In reverberatory furnaces it is smelted by fuel in a fireplace, separate from the ore, and in cupolas the fuel, generally coke, is in direct contact with the ore. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" When Swansea was the centre of the copper-smelting industry in Europe, many varieties of ores from different mines were smelted in the same furnaces, and the Welsh reverberatory furnaces were used. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" There are several modifications of the reverberatory furnace in use, designed mechanically to effect the rabbling. Getting Gold: a practical treatise for prospectors, miners and students This furnace is stated to be more economical in labour than other mechanically stirred reverberatory furnaces, and there is also said to be an economy in fuel. Getting Gold: a practical treatise for prospectors, miners and students One disadvantage of the reverberatory furnace is the fact that it is impossible to avoid the incursion of air during the manual rabbling action, and this tends to cool the furnace. Getting Gold: a practical treatise for prospectors, miners and students |
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