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Heat Balance (HBL) in Cement Industry

What is Heat Balance?

Heat balance in cement industry is review kiln capacity at the present at the plant comparing with general standard in cement field or other plants before and after making improvement in order to remove unusual points, unsuitable points, take suitable points but have not been technology limit of expectation of cement field to optimize current system. Finally, purpose is reducing production cost for cement plants.

Heat balance trend in mordern plants now is that increasing heat consumption in order to reducing fuel cost.

                 

Scope of Heat balance :

                

Main points must be gained in heat balance process:

                  

Main works in heat balance process:

1. Review quality and capacity of homogenizing silo:

Example of homogenizing performance of meal silo

 

                  

 

2. Review burning process, burner and fuel

                  

Need to review, check the these following scopes:

  • Coal characteristic
  • Kinetic energy
  • Types of air ratio
  • Limits of velocity
  • Coating in kiln

 

3. Review clinker cooler and TAD

                   

Need to review, check the these following scopes:

  • Heat radiation
  • Exhaust gas temperature
  • Air distribution
  • Clinker bed
  • Performance

Example of diagram of temperature of clinker cooler

                 

4. Review preheater

                  

Need to review, check the these following scopes:

  • Basic parameters
  • Heat and pressure  amplitute
  • O2 and CO amplitute
  • Preaheater performance/C1
  • Calciner
  • C5 chute
  • Analyzing outlet gas

 

5. Overal heat balance of kiln

                  

Need to review, check the these following scopes:

  • False air
  • Operation and controlling parameters
  • Sumerize heat balance system

Example of Heat Balance of Kiln

 

                

Example of reality data of projects before and after modification - Performance and Volume

                    

Example of reality data of projects before and after modifying clinker cooler and heat banlance 

                  

 

Represent Customers:

We have carried out Heat Balance programme in companies such as: Bim Son Cement Joint Stock company, Cement Consultant Investment & Development Company, Vicem Cement Technology Institute

                               

 

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