On the Manufacture and Testing of Portland Cement, and the Machinery Used in its Production

Henry Faija
1875 Proceedings of the Institution of Mechanical Engineers  
Downloaded from PORTLAND CEMENT MANUFACTURE. 47 into large reservoirs or "backs," and allowed to settle; it is then dried, and afterwards calcined a t a high temperature, and eventually ground between millstones to the requisite fineness. In Fig. 10 , Plate 6, is shown a general plan of works erected to turn out 360 tons of Portland cement per week. Wash Xilk aBd Elevatms.-The wash mill, shown in Fig. 1 , Plate 2, is a circular pan about 18 ft. diameter and 4 ft. deep, usually built of brick,
more » ... th a brick bottom, sunk into the ground and puddled on the outside. On one side of the pan is an opening,
doi:10.1243/pime_proc_1875_026_008_02 fatcat:zksljq7ycrfnbkjtysnn25r4fy