| 摘要 |
A method of producing cold agglomerates for use in iron making including the steps of preparing a homogenized mixture of powdered or granular iron-containing material, a hydraulic bonding agent and optionally other additives, adding water to said mixture, homogenizing the resulting mixture, mechanically forming the resulting homogenized mixture into agglomerates, and curing the resulting green agglomerates. In order to produce continuously agglomerates of high strength in a relatively short time, with high operational efficiency and safely without the use of high pressure steam, said hydraulic bonding agent is added in an amount within the range from 3 to 10 wt. parts per 100 wt. parts of said iron-containing material, and the curing is performed by the consecutive steps of allowing the green agglomerates to stand in vessel (2) at ambient temperature up to 60 DEG C and in an atmosphere of normal humidity or from 80 to 100% relative humidity during not more than 3 days, steam treating the resulting agglomerates in steam heating unit (6) at a temperature from 90 to 100 DEG C and then air heating the steam treated agglomerates in heating unit (10) at a temperature from 100 to 500 DEG C.
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