Title:
GRANULAR FOAMED SLAG CONSISTING OF SEWAGE SLUDGE
Document Type and Number:
Japanese Patent JPH04119976
Kind Code:
A
Abstract:
PURPOSE: To improve foamability by incorporating a specified amt. of P or a P compd. and specifying the bulk density.
CONSTITUTION: Viscosity controlling limestone is added to the ash having a specified content of P or a P compd. and obtained by burning sewage sludge, and the mixture is melted by an electric furnace. The molten slag 2 is dripped into a water tank 5 set below a tundish 1 through the tundish 1 having a specified hole diameter. The water tank 5 is always agitated by an agitator 4 to granulate the molten slag 2 dripped as a droplet current 3, and a granular foamed slag contg. 3-20wt.% of P or a P compd. and having 0.2-1.0 bulk density is obtained.
Inventors:
KANEKO SENJI
SHINDO TAKASHI
INOKAWA NOBURO
HARA MIKIKAZU
TAKEBE TAKASHI
HOSHINO YASUSHI
SHINDO TAKASHI
INOKAWA NOBURO
HARA MIKIKAZU
TAKEBE TAKASHI
HOSHINO YASUSHI
Application Number:
JP23967090A
Publication Date:
April 21, 1992
Filing Date:
September 10, 1990
Export Citation:
Assignee:
KANEKO SENJI
SHINDO TAKASHI
NIPPON KOKAN KK
SHINDO TAKASHI
NIPPON KOKAN KK
International Classes:
C02F11/00; C04B18/02; C04B18/04; C04B18/10; C04B38/00; (IPC1-7): C02F11/00; C04B18/02; C04B18/10; C04B38/00
Attorney, Agent or Firm:
Yasuo Ishikawa (1 outside)