E/MJ : engineering and mining journal . vaporation of the oil. Nomatter how low grade it is, there are some lighter por-tions, and the hot sun seems to draw these through thewood staves. Id estimate a loss of at least 10 per cent. As to the steel tank, it doesnt pay to use too lighta plate. The shell should be of {],- or i-in. materialand the heads should be i in. thick. The longitudinalseams should be double-riveted, but the girth seamsmay be single-riveted. If a capacity of 8000 gal. isrequired, one tank will do, but for a greater capacityuse two tanks. Then you have a chance to clean outthe
E/MJ : engineering and mining journal . vaporation of the oil. Nomatter how low grade it is, there are some lighter por-tions, and the hot sun seems to draw these through thewood staves. Id estimate a loss of at least 10 per cent. As to the steel tank, it doesnt pay to use too lighta plate. The shell should be of {],- or i-in. materialand the heads should be i in. thick. The longitudinalseams should be double-riveted, but the girth seamsmay be single-riveted. If a capacity of 8000 gal. isrequired, one tank will do, but for a greater capacityuse two tanks. Then you have a chance to clean outthe slime from one while the other is full. How about putting the tanks in the ground? brokein Woods. By all means, said Egan. If they are above ground,there is always a fire hazard, and the pipes are exposedto injury and meddling. Place them on concrete sad-dles in a pit about a foot deeper than the diameter ofthe tank, and pack earth in the pit, leaving about 4 the dirt and the tank, as shown by the cross- iFiTa^iri Tank To p. .?^m^^ * ffoo jc/pr vf.^,v,v(? Wmi FIG. 3. CONSTRUCTION OF CONCRETE STORAGE TANK 140 Engineering and Mining Journal Vol. 108, No. 4 section, Fig. 1. Then pour in concrete, covering theentire surface of the tank. If wooden forms are used,the concrete covering can be made as low as 2 in. course, the concrete must be fairly neat to runthrough this narrow space. You then have a rust-proof storage. In making concrete tanks I favor the vertical cylin-drical type. Many square tanks have been built, butthey all tend to crack at the corners. Some peoplesay that if oil leaks into the surrounding dirt it willform a cement and prevent further leakage. The troubleis that a lot of oil is lost before this cement job isfinished. It is easy to build a round concrete tank. Dig acircular pit of the necessary diameter and depth, asshown in Fig. 3, and inside it build up a cylindricalform made of boards 1 in. by 12 in., held to shape bythe segments A. Use h
Size: 1541px × 1622px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmineralindustries
