moein_tooloeman
عضو جدید
فرمولهاي ضروري براي مهندسين بهره بردار سيمان
ضريب آهك اشيا
LIME SATURATION FACTOR (l.s.f.)
LIME SATURATION FACTOR (l.s.f.)
L.S.F.( MgO=< 2) =100 ( C + 0,75M )
2,85S + 1,18A + 0,65F)
L.S.F.( MgO> 2) =100 ( C + 1,5 ) 2,85S + 1,18A + 0,65F ) ( Usual : 90-98 )
ضريب سيليس
SILICA RATIO (s.r)
2,85S + 1,18A + 0,65F) L.S.F.( MgO> 2) =100 ( C + 1,5 )
2,85S + 1,18A + 0,65F ) ( Usual : 90-98 ) ضريب سيليس
SILICA RATIO (s.r)
S.R. = ( A + F ) ( Usual : 2-3 )
< 2 => easy burning, excessive liquid phase, attack to the bricks,
coating washing, balling, hard clinker,
kiln unstable, low heat consumption, low cement strenghth.
> 3 => hard burning, scarce liquid phase, high thermal loads,
no coasting, dusty clinker, high free lime, kiln unstable, high cement strength, slow hardening cement.
ضريب آلومينا
ALUMINA IRON RATIO (a.r.)
< 2 => easy burning, excessive liquid phase, attack to the bricks,
coating washing, balling, hard clinker,
kiln unstable, low heat consumption, low cement strenghth.
> 3 => hard burning, scarce liquid phase, high thermal loads,
no coasting, dusty clinker, high free lime, kiln unstable, high cement strength, slow hardening cement.
ضريب آلومينا
ALUMINA IRON RATIO (a.r.)
A.R. = A/F ideal =1,38 ( Usual : 1,3-2,5 )
> 2,5 viscous slag, high early strengths.
< 1,3 fluid slag, low early strengths, low heat of hydration.
> 2,5 viscous slag, high early strengths.
< 1,3 fluid slag, low early strengths, low heat of hydration.
مدول هيدروليک
HYDRAULIC MODULUS (h.m.)
H.M. = C : ( S + A + F )( Usual : 1,7-2,3) < 1,7 : low strangth cement.
> 2,4 : expansive cement.
> 2,4 : expansive cement.
فاز مايع در منطقه پخت
% LIQUID PHASE AT THE BURNING ZONE (l.p.)
A.R. > 1,38 % L.P. 1338ºc = 6,1F + M + K + SO 3
A.R. < 1,38 % L.P. 1338ºc = 8,2A - 5,22F + M + K + N + SO 3 ( Usual : 23/28 % )
A.R. > 0,64 % L.P. 1450ºc = 3,0A + 2,25F + M + K + N + SO 3
A.R. < 1,38 % L.P. 1338ºc = 8,2A - 5,22F + M + K + N + SO 3 ( Usual : 23/28 % )
A.R. > 0,64 % L.P. 1450ºc = 3,0A + 2,25F + M + K + N + SO 3
معادل قليائی
ALKALIS EQUIVALENT (a.e.)
A.E. = Na 2 O + 0,659 K 2 O ( Usual =< 0,60 % )
حداقل درجه حرارت پخت
MINIMUM BURNING TEMPERATURE (ºc)
ºc = 1300 + 4,51 C 3 S - 3,74 C 3 A - 12,64 C 4 AF
ضريب کوتينگ گيری
COATING INDEX (a.w.)
ضريب کوتينگ گيری
COATING INDEX (a.w.)
A.R. >= 0,64 AW = C 3 A + C 4 AF + 0,2 C 2 S +2F
A.R. < 0,64 AW = C 3 A + C 4 AF + 0,2 C 2 S +2F
A.W. < 20 - scarce coating
A.W. > 35 - excessive coating, but unstable
A.R. < 0,64 AW = C 3 A + C 4 AF + 0,2 C 2 S +2F
A.W. < 20 - scarce coating
A.W. > 35 - excessive coating, but unstable
ضريب قابليت پخت
BURNABILITY INDEX (b.i.)
B.I. = C 3 S : ( C 3 A + C 4 AF ) ( Usual : 2,6 ~ 4,5 ) Lower = best
فاکتور قابليت پخت
BURNABILITY FACTOR (b.f.)
B.F. = LSF + 10MS - 3( M + Alkalis ) ( Usual 100 ~ 120 ) best 108
روابط بوگ براي كلينكر
BOGUE'S POTENTIAL COMPOSITION
A) A.R. > 0,64
C 3 S = 4,071 C - 6,6 S - 6,718 A - 1,43 F - 2,852 SO 3
C 2 S = 2,867 S - 0,754 C 3 S
C 3 A = 2,650 A - 1,692 F
C 4 AF = 3,04 F
B) A.R. =< 0,64
C 3 S = 4,071 C - 7,6 S - 4,479 A - 2,859 F - 2,852 SO 3
C 2 S = 2,867 S - 0,754 C 3 S
( C 2 F + C 4 AF ) = 2,10 A + 1,702 F
C 4 AF = 4,766 A
C 3 S = 4,071 C - 6,6 S - 6,718 A - 1,43 F - 2,852 SO 3
C 2 S = 2,867 S - 0,754 C 3 S
C 3 A = 2,650 A - 1,692 F
C 4 AF = 3,04 F
B) A.R. =< 0,64
C 3 S = 4,071 C - 7,6 S - 4,479 A - 2,859 F - 2,852 SO 3
C 2 S = 2,867 S - 0,754 C 3 S
( C 2 F + C 4 AF ) = 2,10 A + 1,702 F
C 4 AF = 4,766 A
بار حرارتي مقطعي كوره
CROSS SECTION THERMAL LOAD (c.t.l.)
C.T.L. = ( Fuel Kg/h . L.H.V ) : ( pD 2 /4 ) max = 3,46 . 106 Kcal/m3h
بار حرارتي حجمي كوره
VOLUMETRIC THERMAL LOAD (v.t.l.)
V.T.L. = ( C.T.L. ) : B.Z.length max = 0,3 . 106 Kcal/m3h
نسبت قليائي به سولفات
ALKALI/SULPHATE RATIO (a.s.r.)
A.S.R. = SO 3 : ( K 2 O + 0,5 Na 2 O ) ( Usual : 0,6 < a.s.r. < 1,4 )
مدول سولفات
SULPHATE MODULUS (mso 3 )
مدول سولفات
SULPHATE MODULUS (mso 3 )
MsO 3 = ( SO 3 /80 ) : [( K 2 O/94 ) + ( Na 2 O/62 ) - ( Cl¯/35,5)
no problem if 0,83 < MsO 3 < 1,00
no problem if 0,83 < MsO 3 < 1,00
اطلاعات حرارتي براي كوره سيمان
THERMAL DATA
% Excess air = 95 . O 2 - ( 21 - O 2 )( exit gas analysre )
L.H.V. = 8100 C + 28600 ( H - O 2 /8 ) + 2500 S - 600 HO 2 O ( Kcal/Kg )
ideal Oil Viscosity = 2 ~ 2.5ºE = 11 ~ 17 CSTK = 80 ~ 95 S sec = 65 ~ 90 Red
Air demand = 1,165 Nm 2 /1000Kcal
Air speed : Oil : 60 ~ 120 m/sec Gas : 70 ~ 250 m/sec Coal : 60 ~ 80 m/sec
Linear Expansion ( shell ) L 2 = 12 . 10 -6 . Dt . L 1
Linear Expansion ( brick ) = 3,81 . 10 -7 ( t - 20 ) 2 + 6,52 . 10 -4 ( t - 20 )(%)
L.H.V. = 8100 C + 28600 ( H - O 2 /8 ) + 2500 S - 600 HO 2 O ( Kcal/Kg )
ideal Oil Viscosity = 2 ~ 2.5ºE = 11 ~ 17 CSTK = 80 ~ 95 S sec = 65 ~ 90 Red
Air demand = 1,165 Nm 2 /1000Kcal
Air speed : Oil : 60 ~ 120 m/sec Gas : 70 ~ 250 m/sec Coal : 60 ~ 80 m/sec
Linear Expansion ( shell ) L 2 = 12 . 10 -6 . Dt . L 1
Linear Expansion ( brick ) = 3,81 . 10 -7 ( t - 20 ) 2 + 6,52 . 10 -4 ( t - 20 )(%)