Control method for meniscus of continuous casting mold

Control method for meniscus of continuous casting mold

  • CN 102,458,718 A
  • Filed: 05/06/2010
  • Published: 05/16/2012
  • Est. Priority Date: 06/24/2009
  • Status: Active Grant
First Claim
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1. control method that is used for the casting liquid level (9) of continuous cast mold (1),-wherein utilize locking device (4) adjustment liquid metal (3) to flow in the continuous cast mold (1) and utilize drawing device (8) to pull out the metal strand (7) of partial coagulation from continuous cast mold (1),The actual value (hG) of-casting liquid level (9) that wherein will record is transported to casting liquid level regulator (18), and it tries to achieve the theoretical position (p*) that is used for locking device (4) according to the actual value (hG) and the theoretical value (hG*) of correspondence,The actual value (hG) of-casting liquid level (9) that wherein will record is transported to interference parameter compensator (20),-wherein to interference parameter compensator (20) also carry the theoretical position (p*) that is used for locking device (4), the physical location of the physical location (p) of the theoretical position that is used for locking device (4) revised with interference parameter offset (z), locking device (4) or the locking device (4) revised with interference parameter offset (z)-wherein interference parameter compensator (20) according to be transported to it numerical value (hG, p* p) try to achieve interference parameter offset (z),-wherein locking device (4) is carried the theoretical position of revising with interference parameter offset (z),-wherein interference parameter compensator (20) comprises the model (21) of continuous cast mold (1), utilizes this model interference parameter compensator (20) to try to achieve the expected value (hE) of liquid level (9) that are used to cast according to model input value (i),-wherein interference parameter compensator (20) comprises the vibration compensator (23) of some;

  • Utilize said vibration compensator interference parameter compensator (20) to try to achieve the frequency interferences component (zS) that is the basis with each interfering frequency (fS) respectively according to the actual value (hG) and the difference (e) of expected value (hE)-wherein frequency interferences component (zS) be equivalent to interference parameter offset (z),-wherein pass through formulai=p’

    +z’

    Confirm model input value (i), wherein p '"'"' be locking device (4) uncorrected theoretical position or physical location (p*, p), z '"'"' is the transition offset,-wherein interference parameter compensator (20) comprises transition calculator (22), interference parameter compensator (20) utilizes this transition calculator to try to achieve transition offset (z '"'"') through the integration of the difference (e) of actual value (hG) and expected value (hE).

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