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Process control for recycled asphalt pavement drum plant

  • US 5,322,367 A
  • Filed: 09/23/1992
  • Issued: 06/21/1994
  • Est. Priority Date: 07/31/1989
  • Status: Expired due to Fees
First Claim
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1. A method for controlling the production rate in a drum plant for producing asphalt from recycled asphalt pavement comprising the steps of:

  • sensing the tons per hour (TPHa) being produced by said plant;

    comparing said tons per hour (TPHa) with a desired tons per hour (TPHd);

    sensing drum inlet gas temperature (TDI) when (TPHd) is less than (TPHa);

    comparing said drum inlet gas temperature (TDI) to a maximum drum inlet gas temperature (TDImax);

    increasing the drum inlet gas temperature (TDI) when the drum inlet gas temperature (TDI) is less than the drum inlet gas temperature maximum (TDI max), andincreasing the tons per hour (TPHa) when the drum inlet gas temperature (TDI) is increased.

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