One-dimensional dynamic model of blast furnace

Introduction

It, perhaps, my top. - Once again a problem of such volume to me to not lift any more.

Once thought, that this will be my second dissertation, but in a fork "the statement in the scientific world - the statement among production workers" I have chosen the second and could not punch introduction. A table of contents that you could estimate, whether it is necessary to spend work on uploading of a file and reading of 41 pages of the text written in RUSSIAN with formulas, tables, pictures:

Chapter 1. Blast furnace process.............................................................................................	5
Global sight........................................................................................................	5
Blast furnace. An input - output.....................................................................................	5
Chemistry......................................................................................................................	8
Skeleton of chemical components and reactions..................................................................	9
Chapter 2. Static 3-layer model.........................................................................	11
Problem of material balance and its solution.......................................................	11
Speeds of chemical reactions....................................................................................	15
System of equations...................................................................................................	15
The solution of system of equations for speeds of reactions............................................	17
From speeds to concentrations................................................................................	18
Modelling. The equations or algorithm?...............................................................	19
Temperatures, heat exchange and thermal losses................................................................	22
The equations of balance of heat....................................................................................	22
The solution of system of equations for temperatures......................................................	24
The some predictions..........................................................................................	25
The formula for speed of chemical reaction (1-st approach)........................................	25
Chapter 3. Dynamic 3-layer model......................................................................	28
Gas - from below upwards at once...................................................................................	28
Devil............................................................................................................................	28
Tuyeres........................................................................................................................	28
Stack............................................................................................................................	29
Firm-liquid - level-by-level slipping......................................................................	29
Practice - criterion of true.......................................................................................	30
Chapter 4. Static 25-layer model........................................................................	32
The formula for speed of chemical reaction (2-nd approach). Thermal balance.........	32
Linear dependence..............................................................................................	33
Arrhenius's formula..................................................................................................	34
Square root...................................................................................................	35
Chapter 5. Dynamic 25-layer model....................................................................	36
Gas - from below upwards at once, firm-liquid - from below upwards level-by-level..........	36
Practice - criterion of true.......................................................................................	36
Chapter 6. Problems on the future.........................................................................................	39
The account of dynamics of job notches and basicities of slag............................................	39
The account of dynamics of wall accretions........................................................................	39
Exit on bidimentional model........................................................................................	39
The conclusion......................................................................................................................	40
The union with the technologist is necessary.......................................................................	40
It is necessary for the MANAGEMENT INFORMATION SYSTEM..............................	40
That I think valuable......................................................................................................	40
The application.......................................................................................................................	41
The table of thermal capacities...........................................................	41
About the developed programs......................................................................................	41
BALANCE..................................................................................................................	41
PROGNOZ..................................................................................................................	42

The basic results

Any model of blast furnace process bases on system of chemical reactions. The system chosen me
Before it was possible to calculate numerical values of speeds of reactions, it was necessary to find the coordinated initial data and to make material balance with ABSOLUTE accuracy. Here is how it is made
The coordinated data and speeds of chemical reactions allow to make thermal balance
All this was the static model of a blast furnace. But the offered equations of calculation have allowed to proceed to dynamic model. And results of comparison of model (green color) with real three day of job of the real furnace (red color)

And in the rest - read the text!

ZIP-files

BlastFurnace.doc_(231 Kb)

Reactions_bmp_(19 Kb)

MatBalance_bmp_(22 Kb)

HeatBalance_bmp_(13 Kb)

Real3days _bmp_(20 Kb)

WinProg_BALANCE_(189 Kb)

WinProg_PROGNOZ_(184 Kb)