New Method of Materials Flow Calculation for Double-String SLCI Type Cement Plant (Part 1: The Whole Clinker Plant)

Authors

  • Prihadi Setyo Darmanto Institut Teknologi Bandung
  • Izzan Hakim Muzakki Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia
  • I Made Astina Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia
  • Firman Bagja Juangsa Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia
  • Alfi Amalia Indonesia Cement and Concrete Institute Jalan Raya Ciangsana, Gunung Putri 16968, Bogor, Indonesia.
  • Arief Syahlan Indonesia Cement and Concrete Institute Jalan Raya Ciangsana, Gunung Putri 16968, Bogor, Indonesia.

DOI:

https://doi.org/10.5614/j.eng.technol.sci.2021.53.5.6

Keywords:

calciner, electricity production, heat ratio, materials flow, overdetermined system

Abstract

Materials flow values are instrumental in many industries for controlling and simulating processes, designing new equipment as well as modifying existing plants. They are sometimes impossible to determine by direct measurement in an operating plant due to the very high temperatures. This study attempted to overcome the difficulties associated with this measurement by proposing a new method to calculate materials flow of a double-string suspension preheater type of cement plant with separate line and in-line calciners (SLC-I), with heat balance error less than 1%. This study was divided into two sequential parts, with the first part presented in this paper. The methodology of the first part was to solve the conservation law of the main clinker plant equipment, supported by Bogue?s equation, the heat of calcination, and the thermodynamic properties of the related materials. The least-square method was employed for solving the overdetermined system equations obtained in the second part. The results of the first part were: the ratio of heat formation to specific heat consumption was 52.13% (> 50%), and the gas exhausted from the plant yielded more than 117 MW heat equivalent, which can potentially be recovered for electricity production.

Author Biographies

Prihadi Setyo Darmanto, Institut Teknologi Bandung

Mechanical Engineering Department

Izzan Hakim Muzakki, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia

Mechanical Engineering Department

I Made Astina, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia

Mechanical Engineering Department

Firman Bagja Juangsa, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia

Mechanical Engineering Department

Alfi Amalia, Indonesia Cement and Concrete Institute Jalan Raya Ciangsana, Gunung Putri 16968, Bogor, Indonesia.

Process

Arief Syahlan, Indonesia Cement and Concrete Institute Jalan Raya Ciangsana, Gunung Putri 16968, Bogor, Indonesia.

Process Simulation

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Published

2021-11-02

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