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Description:We, Jiangsu Pengfei Group Co., Ltd supply complete equipments for active lime production line with capacity below 1200 ton per day. The active lime is widely used in steel production, Al2O3 production, Metal Mg production, calcium carbide and Power plant desulfurization paper production area. Active lime is an important auxiliary material in steel making industry. The using of active lime enhances the quality and capacity and lower down the loss and cost. It also stabilizes the operation. As proved in production, the using of active lime in steel making industry is very profitable. Recently years, the capacity of steel industry used lime increased by 40%. High quality lime with activity above 300ml increased from 27% to 29.5%.
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Explain
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1.Steelmaking practice certified that, the active lime can improve the desulfurization and dephosphorization efficiency of 80%, and shorten the smelting time. It can be completely take reaction with acidic substances in the molten steel in 3-5 minutes.The lime reaction time of shaft kiln need 6-10 minutes at least.And it also improve furnace ridge above 40%. The furnace burden consumption is reduced to 5-8Kg/t steel,calculated in 10000000tons,savings annual about 15000000,production efficiency is significant.
2.Desulfurization and dephosphorization efficiency of active lime is obviously improved,the average S removal rate of steel is 34.5% ,especially for high S iron (S ≥ 0.06%), efficiency is more obvious, and the S removal agent consumption can be reduced by about 45%.
3.Steelmaking with active lime,iron material consumption can be reduced by 5-15Kg/t steel,than non-active lime.And it also can reduce the steel splash and adhesion on oxygen lance;sticky mouth;flue sticking phenomenon.
4.Lime consumption decreased: steelmaking with active lime, the consumption can reduce 20~25Kg/t steel,compared with non-active lime.And if use non-active lime,consumption is more than 65~70Kg,if use active lime, is 40~41.5Kg/t steel.
5.Steelmaking with active lime,slagging is fast,desulfurization, dephosphorization ability is significant, the production efficiency can be improved by 5%~10%. 6.Quality requirement of the active lime limestone:CaO≥52% SiO2≮2.0% MgO≮1.5%
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Technical
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Active lime rotary kiln system process matching table
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specification
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Φ2.5×40
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φ2.8x42
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Φ3x46
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Φ3.2x50
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φ3.2x54
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φ3.6x56
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φ3.8x58
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Φ4x60
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Φ4.3x58
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Φ4.3x64
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Φ4.8x68
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volume(m3)
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142
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190
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235
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292
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390
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430
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505
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575
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670
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738
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1005
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burning temperature0C
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1350/
1250
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1350/
1250
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1350/
1250
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1350/
1250
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1350
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1350
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1350
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1350
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1350
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1350
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1350
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capacity(t/d)
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150
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200
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250
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300
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350
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400
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500
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600
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750
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800
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1000
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Technical
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host performance
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300t/d
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600t/d
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800t/d
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1000t/d
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1200t/d
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1500t/d
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preheater
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Type
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Low wear vertical warehouse compartment
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Low wear vertical warehouse compartment
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Low wear vertical warehouse compartment
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Low wear vertical warehouse compartment
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Low wear vertical warehouse compartment
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Low wear vertical warehouse compartment
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Shape
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Type 6 edges
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Type 12 edges
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Type 12 edges
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Type 18 edges
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Type 20 edges
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Type 22 edges
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Preheating warehouse number
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6
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12
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12
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18
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20
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22
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hydraulic push rod number
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6
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12
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12
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18
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20
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22
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preheating amount(t)
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1200
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1200
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1600
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2000
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2400
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3000
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Rotary kiln
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Specification
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Φ3.2×50m
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Φ4×60m
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Φ4.8×56m
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Φ4.88×70m
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Φ5.2×72m
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Φ5.6×76m
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Slope
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3.5%
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3.5%
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3.5%
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3.5%
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3.5%
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3.5%
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Rotary speed(r/min)
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0.3-1.8
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0.3-1.8
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0.3-1.8
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0.3-1.8
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0.3-1.8
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0.3-1.8
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Burning temperature(℃)
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1350
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1350
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1350
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1350
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1350
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1350
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cooler
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Type
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Partition upright
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Partition upright
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Partition upright
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Partition upright
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Partition upright
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Partition upright
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Temperature controlling zone number
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3
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3
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4
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4
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4
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4
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Air tower number
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2+1
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4+1
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4+1
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4+1
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4+1
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4+1
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Specification(m)
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3.6×3.6
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4.1×4.1
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4.7×4.7
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5.2×5.2
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5.4×5.4
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5.8×5.8
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Discharging temperature(℃)
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≤80
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≤80
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≤80
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≤80
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≤80
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≤80
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Product heat consumption(KJ/kg)
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5400
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5400
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5000
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4750
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4600
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4500
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Adaptable fuel
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coke oven gas, mixed gas, natural gas, pulverized coal, low-heat value gas
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Jiangsu Pengfei Group Co., Ltd has the great comprehensive ability to provide the best quality services on turn-key basis with the complete equipment、 the installation and the debugging for the new type dry process rotary kiln cement factories under the daily capacity of 8000ton、5000ton and 2500ton and compound fertilizer plants under the annual capacities of the 300000ton. The “Pengfei” brand rotary kiln cement complete equipment have been sold exported to Russia、The Kingdom of Denmark、Germany、kazakhstan、Mongolia、Ukraine、Uruguay、uzbekistan、 Bangladesh、Pakistan、Laos、Peru、India and so on . MD export project are X18, X519, Son La, Lang Son, Da Ye, Chai Shai Cement factories in Vietnam, Tiger-Head, King Elephant Cement Plants in the union of MD and so on . All of these cement complete equipment production line have been widely praised by the international friends.
The key words are : Jingsu Pengfei Group、cement machinery、cement equipment、cement machinery equipment、cement complete equipment、cement machinery complete equipment、mining equipment、Tube mill、Ball mill、Cement mill、Coal mill、Slag mill、Raw mill、Mining mill、vertical mill、roller press 、grinding equipment. The leading products are the cement machinery equipment such as the “Pengfei” brand rotary kiln、ball mill、Tube mill、Cement mill、Coal mill、Slag mill、Raw mill、Mining mill、cooler、vertical mill、roller press、grinding equipment、conditioning tower、dust collector、shaft mill、rolling machine、drier、crusher and conveyor and so on.
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