Method for producing cast iron by substituting carbonized coal balls for coke

Method for producing cast iron by substituting carbonized coal balls for coke

  • CN 101,880,738 A
  • Filed: 08/09/2010
  • Published: 11/10/2010
  • Est. Priority Date: 08/09/2010
  • Status: Active Application
First Claim
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1. method of utilizing substituting carbonized coal balls for coke to produce the pig iron, be iron ore, fuel, Wingdale to be dropped in the blast furnace by a certain percentage in blast furnace, feed the hot-air smelting pig iron by hotblast stove simultaneously, the hot-blast outlet of blast furnace connects fly-ash separator, return hotblast stove through the hot blast after the dedusting and enter blast furnace again, it is characterized in that:

  • the fuel in the described input blast furnace is carbonated coal balls, this carbonated coal balls be by white lime and coal by weight percentage the ratio batching of 20-28;

    80-72 adopt briquetting press to make to send into the carbonization of carbonization jar behind the coal briquette and make;

    And the carbonization jar is connected fly-ash separator, and the hot blast of blast furnace is sent into the carbonization jar coal briquette is carried out carbonizing treatment after the fly-ash separator dedusting, simultaneously the CO in the hot blast 2Further be converted into CO, the hot blast after handling through the carbonization jar returns hotblast stove and enters blast furnace again.

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