Thursday 4 August 2011

RAFT FORMULA

RAFT = 1615 + (0.76*HBT) – (5.75*Humidity) + 53.3 E

               HBT = Hot Blast Temperature   0C 
               Humidity = Grams / Nm3 
               E = Oxygen Enrichment = 79 * Oxy. Flow ( M3/hr) / Hot Blast Flow ( M3/hr)
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11 comments:

  1. 000731 May 2012 at 20:09

    Sir what is a optimise value og RAFT..........

    ReplyDelete
  2. Unknown24 March 2018 at 09:09

    2200 DEGREE CENTIGRADE

    ReplyDelete
  3. Unknown29 June 2018 at 18:59

    What is 1615 ,0.76, 5.75 and 53.3 please explain

    ReplyDelete
  4. Bhaskar Reddy30 June 2018 at 07:32

    If there is any clear information regarding RAFT will u please explain

    ReplyDelete
  5. Unknown23 July 2018 at 04:01

    RAFT = 1470+(0.85xHBT)-5.5(Air humidity+steam injection)+(50 x oxygen enrichment)-(2 x coal injection x 1000/specific wind rate)

    ReplyDelete
    Replies
    1. janardhan kanchala16 December 2019 at 01:06

      Sir, how to take oxygen enrichment, is it in percentage or in nm3/hr

      Delete
  6. Unknown25 November 2019 at 05:32

    IF COAL INCREASE ,THEN RAFT INCREASE OR DECREASE.

    ReplyDelete
    Replies
    1. Unknown5 December 2020 at 15:51

      Decrease.... But the hot metal temp. Is increase.

      Delete
  7. Unknown8 December 2019 at 08:40

    Decreases

    ReplyDelete
  8. Unknown4 January 2020 at 03:18

    Sir , Pl.explain RAFT formula

    ReplyDelete
  9. Unknown8 September 2020 at 23:52

    Pls tell me how air to gas ratio can set incase of blast furnace stove heating??

    ReplyDelete

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