Process for increasing smelting point of coal ash

Process for increasing smelting point of coal ash

  • CN 1,093,559 C
  • Filed: 09/01/1999
  • Issued: 10/30/2002
  • Est. Priority Date: 09/01/1999
  • Status: Active Grant
First Claim
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1. , a kind of method that is used to improve coal ash fusion temperature, it is characterized in that, two or more coal with different sulphur and ash oontent is mixed, obtain finished product mixing coal, the weight ratio that the weight ratio of various coals should make relevant component content in finished product the mixings coal meet following A, B, three regulations of C when cooperating concerns:

  • A, when the gross weight with finished product mixing coal is 100%, S wherein≤

    1%, and the total amount of ash content is in the scope of 5-15%;

    B, when being 100% with the ash content gross weight, SiO wherein 2+ Al 2O 3+ CaO 〉

    =70%;

    C, be selected from any condition in the following condition (1) to (4);

    (1) is 100% o'"'"'clock with the ash content gross weight, SiO wherein 2+ Al 2O 3

    =70%;

    (2) with SiO 2+ Al 2O 3+ CaO gross weight is 100% o'"'"'clock, SiO wherein 2

    =65%;

    (3) with SiO 2+ Al 2O 3+ CaO gross weight is 100% o'"'"'clock, Al wherein 2O 3

    =25%;

    (4) with SiO 2+ Al 2O 3+ CaO gross weight is 100% o'"'"'clock, CaO wherein 〉

    =35%.

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