The Blast Furnace and Steel Plant Volume 10

The Blast Furnace and Steel Plant Volume 10

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...ash hopper. This is a circular duct and is closed at the top by a hollow 14 in. cast iron ball which can be rolled aside and the dust removed. When the ball is in place air leakage is prevented when ashes are being removed from the hopper. Water Softening Plant. The water softening plant was furnished by the International Filter Company and has a capacity of 27,000 gallons of treated water per hour. Water from the city mains, which is untreated river water, is first treated with alum in the coagulating tank which is 11 feet diameter and 22 feet high. The water from this tank is then treated with lime and soda and passes to the settling tank which is 30 feet diameter and 22 feet high. Water then passes from the settling tank through sand niters to the clear water basin which forms part of the softening plant foundation. The clear water basin has a capacity of 52,000 gallons. In a pit at the base of the clear well are installed two motor driven 2 stage Worthington centrifugal pumps having a capacity of 300 gpm, each. These pumps are supplied under a positive suction head and deliver the water to the feed water heater, or when the heater is being cleaned or repaired, direct to the boiler feed pumps. Since the clear water pumps have a capacity of 300 gpm., one is held in reserve. The entire operation of the filtration plant is automatic. Tests of the treated water are made twice daily and changes made in the strength of the chemical solutions accordingly, but the proportioning of the solutions to the water is entirely automatic. The treatment is intermittent, a new batch of water being treated automatically as needed. A small electric elevator is used to bring the chemicals from the car at the yard level up to the mixing platform. As the plan and...show more

Product details

  • Paperback | 536 pages
  • 189 x 246 x 27mm | 948g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123653106X
  • 9781236531063