Continual Journey for Reduction in Specific Energy Consumption
in Cement Manufacturing Process
Integrity Commitment Passion Seamlessness Speed
by
Rajashree Cement Works (A Unit of UltraTech Cement Limited)
at
CII - 19th National Award for Excellence in Energy Management
Contents of Presentation
Integrity Commitment Passion Seamlessness Speed
Company & Unit Profile
Year-wise Specific Energy Consumption and Energy Benchmarking
ENCON Projects
Utilization of Renewable Energy
Green House gasses- Inventorisation
Sustainability Initiatives
Energy Monitoring & Management
Green Supply Chain Initiatives
ISO Certifications
CSR Initiatives
UltraTech Cement – The largest Cement Manufacturer in India And a 360degree construction solutions company
Sustainability
Proud Member of CSI
Water Positive Company
On the lines of preserving Bio-diversity
Implemented DuPont Safety Standards
Energy Conservation
Utilizing Pet-coke to the maximum
Maximizing the usage of AFR’s
Utilizing Waste Heat Recovery
Utilizing Solar & Wind Power
Human Resource
UTCL is Part of Aditya Birla Group, recipient of 2017-18 AON Hewitt’s : Best Employer
Integrity Commitment Passion Seamlessness Speed
Rajashree Cement Works, Malkhed Road,
Gulbarga- Karnataka
Unit Profile – Inception to Present Day
Integrity Commitment Passion Seamlessness Speed
19841st plant set up by Indian Rayon with Production capacity of 1500 TPD, upgraded to 3100 TPD through modifications. Plant Supplier: KHD
1990Commissioned 2nd Line with clinker production capacity of 3000 TPD, upgraded to 4150 TPD through modifications.Plant Supplier:
KHD
1995
Commissioned 3rd Line with clinker production capacity of 3500 TPD, upgraded to 5250 TPD through modifications.Plant Supplier:
KHD
2013Commissioned 4th
Line with Clinker Capacity of 10000 TPD. With potential for 12500 TPD, Plant Supplier:
KHD
L-1 : 3100 TPDTotal : 3100 TPD
L-2 : 4150 TPDTotal : 7250 TPD
L-3 : 5250 TPDTotal : 12500 TPD
L-4 : 12500 TPDTotal : 25000 TPD
Products
PremiumQuality Clinker
OPC 53 OPC43 and IRST
PPC PPC Super
Safety Initiatives
Integrity Commitment Passion Seamlessness Speed
Unit Profile – Manufacturing Process & Equipment Details
Integrity Commitment Passion Seamlessness Speed
Details of Major Equipment
Equipment Line-3 Line-4
Crusher Impact Type Crusher, L&T – 1200 TPH
Impact Type Crusher, L&T – 1650 TPH
Raw Mill Ball Mill with RP, KHD- 350 TPH
Finished Mode RP-3 No.s, KHD-290 TPH
Coal Mill VRM, Loesche-30 TPH
VRM, GPAG-90 TPH
Pyro 6 Stage 2 String-SLC Preheater, Kiln: 4.6 X 60 m, KHD- 5250 TPD
6 Stage 4 String-ILC Preheater, Kiln: 6 X 88 m, KHD-12500 TPD
Cement Mill
Ball Mill with RP, Krupp Polysius-350 TPH
Ball Mill with RP, KHD- 250 TPH –2 No.s
Packer Rotary PackerEnexco- 180 TPH each – 2No.s
Rotary PackerEnexco- 120 TPH each – 8 No.s
Unit Profile – State of Art Technology
Integrity Commitment Passion Seamlessness Speed
First of its Kind 11 m3 Bucket Pay loader
First of its kind 1100 TPH Excavator
First of its kind 100 MT Dumpers Energy Saving MV Drives for Slip Ring Motors
25000 TPD Clinkerisation Facility
Dedicated Silo for Various Grades
Robotic QC Laboratory QCX
Online- PSA XRF Analyzer
Unit Profile – Awards & Accolades
Integrity Commitment Passion Seamlessness Speed
“Energy Efficient Unit” by Confederation of Indian Industries at its National Award for Excellence in Energy Management summit – 2016 & 2017
IMC Ramakrishna Bajaj National Quality Award for Performance Excellence 2015
Golden Peacock Award for HR Excellence -2015
ABG World Class Manufacturing – Gold Award Winner for 2015 & 2017
Unnatha Suraksha Puraskara Awards 2017 by National Safety Council - Karnataka
Specific Energy Consumption Trends
Integrity Commitment Passion Seamlessness Speed
Benchmarking Tool
Integrity Commitment Passion Seamlessness Speed
Path for tool download : https://china.lbl.gov/node/1614/download/41c404f23778981682c1240216c16ab6
TC
E
Road Map to achieve Benchmarks
Integrity Commitment Passion Seamlessness Speed
Reduction in Pressure Drop across the circuitReduction of bends in conveying length of coal pipe-line
Reduction in pressure drop across cyclones and ducts
Optimizing the Process fansReduction in Fan I/L Suction Box Velocity
Reduction in false air across the circuit
Increase in Fan system efficiency
Reduction in Thermal Energy LossesRegulating the Preheater & Cooler Vent losses
Refractory Changeover & upgradation to superior properties
Reduction in radiation losses by aluminizing the surface
Optimizing the Raw & Final Grinding PowerBlending the limestone as per Bond Index
Maintaining Optimum Grinding Media Filling Percentage in Ball Mill
Using lighter weight grinding media for grinding in Ball Mill
Installation of Energy efficient Conveying, Firing & Aeration BlowersTurbo-blowers for Coal Conveying & Firing
Turbo-Blowers in place of smaller Cooler Fans
Increase in Share of Blended CementMaximize the PPC/PPC-S production
Target : 676 Kcal/ Kg Clk & 65 kWh/T Cement
ENCON Projects 2015-16
Integrity Commitment Passion Seamlessness Speed
S.No. Projects without Investment
Annual power
saving
(Million kWh)
Annual cost saving
(Rs Million)
1Line 4 cooler fans suction box modification to reduce specific power during Sept’2015.
0.498 1.55
2 Cooler vent fan PID tuned and Speed reduction of CV fan from 65 to 60% 0.158 0.49
3 RM3 Grinding Media Optimization for power reduction. 4.42 13.71
4Raw Mill fan RPM reduction from 94% to 90% hence reduction on power consumption by 40kw.
0.149 4.63
5 VFD for compressor , IFC Installation & Pressure setting optimization 6.2KG/Cm2. 1.24 3.85
6 Bag House fan PID tuned to keep PH fan just -ve & Fan speed reduction. 1.11 3.47
7Speed reduction of Dust collector fan with pulley change, delta to star conversion & high efficiency water pump for CM3 O/H Tank. 0.948 2.94
8 Removal of PH Downcomer Lower dampers & Sep. Fan Damper (RC4). 0.787 2.44
9 Lighting Transformer Tap reduction & Lighting Circuit Modifications. 0.757 2.35
10 Bypass duct installation in cooler vent & PA Fan discharge Pressure reduction. 0.575 1.78
Total 10.64 37.21
ENCON Projects 2016-17
Integrity Commitment Passion Seamlessness Speed
S No. Projects without Investment
Annual power saving
(Million kWh)
Annual cost saving
(Rs Million)
1Installation of VFD for U-3 Kiln Pfister & Kiln/pyro (standby) Pfister feeders(3K58 & 3K60).
0.39 1.12
2Raw mill-2 grinding media Optimization to reduce Specific power consumption.
0.53 1.52
3Operation of Bauxite crusher of Unit-3 in remote mode from control desk by providing ZSS & 4 Temperature RTDs which reduced the idle running of LSSR circuit.
0.11 0.33
4Coal mill IV bag house pressure drop reduction by 25-30 mmwg by modifying the purging arrangement.
0.31 0.91
5 False air reduction in Preheater, Raw Mill and Coal Mill of Unit-3 0.44 1.26
6 Automation and Centralization of Crusher & Stacking Operation. 0.06 0.17
7 Cement mill 3 grinding media optimisation and Cake Breaker Installation 0.37 1.06
Total 2.21 6.37
ENCON Projects 2016-17
Integrity Commitment Passion Seamlessness Speed
S.No. Projects with Investment
Annual power
saving
( Million kWh)
Investment
Made
(Rs, Million)
Total Annual
cost saving
(Rs, Million)
1Line IV Preheater suction box modification to reduce velocity from 29 to 21 m/sec
1.77 0.05 5.06
2Hot air recirculation to L4 raw mill SKS bottom to reduce false air across Raw mill circuit & bag house fan power consumption in July’2016
1.41 0.05 4.01
3Removal of orifice of coal mill bag house fan to reduce power consumption in Line 4 in June’16
0.21 0.03 0.60
4Coal mill fan suction box modification to reduce velocity from 24 to 17 m/sec at Line IV
0.19 0.06 0.54
5Increase in Cooler ESP chimney height by 10.5 Mtr at Line IV to reduce fan power
0.32 1.40 0.91
6Cement mill IV – SKS fan impeller replacement with high volume impeller to increase the mill output
2.11 1.17 6.01
7 Installation of SPRS in Coal Mill 2 Fan. 1.39 2.50 3.978 Coal Mill-3 ESP to Bag house conversion and cyclone removal 0.40 3.50 1.139 MV drive installation in Raw Mill-3 fan. 0.45 3.80 1.29
10 Installation of MV drive in U3 Pyro preheater fan. 0.84 4.50 2.3911 Installation of MV drive in U3 kiln Preheater fan. 1.31 4.50 3.75
12Removal of damper at raw mill 3 fan inlet to reduce pressure drop across the damper.
0.32 0.02 0.93
ENCON Projects 2016-17
Integrity Commitment Passion Seamlessness Speed
S.No. Projects with InvestmentAnnual power saving
( Million kWh)
Investment Made
(Rs, Million)
Total Annual cost
saving
(Rs, Million)
13 Installation of MV drive in U3 Coal mill fan 0.70 3.50 1.99
14Installation of fresh air damper at RABH inlet to stop dilution air fan operation
0.26 0.02 0.74
15Removal of damper at coal mill 3 fan inlet to reduce pressure drop across the damper.
0.29 0.02 0.81
16Removal of damper at unit 3 kiln preheater fan inlet to reduce pressure drop across the damper.
0.27 0.02 0.77
17Extension of unit 3 cooler ESP chimney height extension from 50.3 mtr to 57.5 mtr
0.33 2.20 0.95
18 Removal of cooler fan inlet dampers and mesh size increasing. 0.17 0.03 0.47
19 Replacement of Cooler vent fan HT motor with LT motor 0.28 0.03 0.79
20Reduction in Air loading /Power Consumption of RABH fans
1.43 0.10 4.06
21Erection of refractory hump has been to block the T A D, for reducing air flow through TAD.
3.17 0.05 10.04
22Kiln 3 Jet air Blower line modification to reduce the turbulence creating due to bends at blower outlet lines.
0.12 0.02 0.38
Total 17.73 27.55 51.57
ENCON Projects 2017-18
Integrity Commitment Passion Seamlessness Speed
S No. Projects without Investment
Annual power
saving
(Million kWh)
Annual cost saving
(Rs Million)
1. Optimizing the Preheater Fan Speed & Reduction in false air across the pyro system leading to YOY reduction of 0.5 kWh/MT Clk.
0.72 2.30
2.Reduction in Baghouse Fan Speed by optimizing the PID loop leading to SPC YOY reduction from 1.82 kWh/T to 1.54 kWh/T Clk.
1.34 4.43
3.Optimization of grinding media charge & pattern in Cement Mills leading to main drive SPC YOY reduction from 13.69 to 12.48 kWh/T Cement.
4.17 13.76
4.Reduction in false air across the Circuit & optimizing the operation of Coal Mill leading to SPC YOY reduction from 39.71 kWh/T Mat. To 34.95kWh/T Mat.
2.37 7.84
5.Optimization of grinding media charge & pattern in Raw Mill leading to main drive SPC YOY reduction from 4.46 to 4.13 kWh/T Mat.
0.72 2.40
6.Optimization of roller & feed regulating gate gap settings, reduction in false air of circuit and reducing the idle run of equipment lead to reduction in YOY SPC by 0.20 kWh/T Mat.
0.99 3.26
7.Reduction in miscellaneous & utility YOY SPC by 0.02 kWh/T Clk by optimizing compressed air pressure settings, reducing leakages, optimizing AHU running
0.09 0.31
Total 10.4 34.3
ENCON Projects 2017-18
Integrity Commitment Passion Seamlessness Speed
S.No. Projects with Investment
Annual power
saving
( Million kWh)
Investment
Made
(Rs, Million)
Total Annual
cost saving
(Rs, Million)
1.Raw Mill-6 Fan In-house Impeller Tipping resulting in SPC reduction of Fan from 4.39kWh/MT to 4.07kWh/MT material.
0.29 0.032 1.0
2.Blanking of Cage of Cement Mill Separators for speed reduction of separator fans resulting in SPC reduction by 0.70 kWh/MT Cement.
0.45 0.05 1.50
3.Modification of Burner tip for reduction in flame momentum & stopping one jet-air blower attached to burner leading to SPC reduction by 0.34 kWh/T Clk.
0.86 0.75 2.86
4. Increase in Kiln-inlet area by 12m2 for enriching oxygen concentration in kiln inlet resulting in speed reduction of PH fan impacting SPC by 0.1kWh/T Clk.
0.18 0.50 0.62
5.Installation of Vortex Breaker in Preheater Cyclone for pressure drop reduction.
0.02 0.40 0.29
6.Installation of Low NOx burner leading to reduction in power consumption of Primary Air blower
0.80 7.5 2.66
7.Incorporation of Expert Optimiser system for reduction in SPC in 1 Raw Mill by 1.61% and 1 Cement Mill by 2.50%.
0.22 4.8 0.72
Total 2.82 14.03 9.65
Ongoing/Planned ENCON Projects in 2018-19
Integrity Commitment Passion Seamlessness Speed
S.No. Projects
1. Reduction in pressure drop across raw mill circuit for reduction in Fan loading.
2. By-passing GCT from PH fan outlet circuit.
3. Optimizing grinding media charge & pattern in ball mills
4. Reduction in fly ash handling & conveying power during PPC manufacture
5. Incorporation of Expert Optimizer system for process control & upgradation of existing Expert Control system
6. CFD analysis of Cooler ESP Inlet duct & PH Down comer duct for reduction in fan loading.
7. Installation of Vortex Rectifier in PH cyclones
8. Raw mix grindability & burnability optimization.
9. Process Fans efficiency improvement
10. Reduction in radiation losses across pyro-section.
Innovative Projects in Line of Energy Conservation
Integrity Commitment Passion Seamlessness Speed
Project-1 : Reduction in Pressure Drop of Cyclone by installation of REPDS
Innovative Idea Generated :-
• As per the CFD analysis found most feasible solution of REPDS installation for reduction in pressure drop across the cyclone without disturbing the original cyclone geometry & structure. The REPDS will act as a Vortex-Breaker for the cyclone.
Benefits Achieved:-• Calculation :- Pressure drop across cyclone :- 73 – 61 = 12mmwg• Reduction in total pressure drop across preheater = 12 mmwg /640mmwg) * 2077kWh
= 38.94kWh• Total kWh saving /Day = 38.94*24 = 934.65kWh/day• Total kWh saving/day/Tclinker = 634.65/10700 = 0.08kWh/Tclinker
Total saving = 38.94kWh*24Hr*320Days*2.8Rs/kWh = 9.86 Lacs Rs. / Annum
Net Saving including investment :- 9.86 – 4.00 = Rs 5.86 Lacs /Annum for one cyclone
Changes done :- Installed 300 mm dia SS-Pipe in the cyclone from roof to cone.
Innovative Projects in Line of Energy Conservation
Integrity Commitment Passion Seamlessness Speed
Project-2 : In-house Impeller Tipping of Raw Mill-6 Separator Fan
Innovative Idea Generated :-
• Impeller Tipping to increase the impeller diameter will result in operating the fan at lower/ safe speed range with the same volume
delivery.
Benefits Achieved:-With an investment of Rs 32,000 the following benefits were achieved :
• Fan Speed reduction from 1040 RPM to 1010 RPM, leads to SPC reduction from 4.39kWh/T to 4.07 kWh/T.
• Raw Meal Production after Modification = 774235 MTUnits Saved = (4.39 – 4.07) X 774235 = 249637
Monetary Savings = 249637 X 3.3 (Avg. Power Cost. Rs 3.3/ KWh)
= Rs 8.23 Lacs in 5 months = Rs 19.75 Lacs/ Annum
Changes done :- Increased the impeller diameter by 50 mm.
Fan original Impeller
Dia was 2290mm
Welding 10mm
Thickness MS Plate of
25mm Width on Blade to
increase Shroud Disc
Dia: 2290+25X2=2340
mm
Before After
Innovative Projects in Line of Energy Conservation
Integrity Commitment Passion Seamlessness Speed
Project-3 : Maintaining the Specified Cage Wheel Velocity at Reduced Air Flow Rate across the Separator.
Before After
Innovative Idea Generated :-
• To maintain same cage wheel velocity (4.5 m/s) even on reduction of volume passing through separator by reducing the area of air-entry.
Changes done :- Blanked dynamic separator Cage from top by 400 mm in circumference of Cement Mill to reduce the effective height thereby effective area of air-entry.
Benefits Achieved:-• Able to reduce the Fan Speed by upto 80 RPM in Cement Mill product
wise.
• Difference in Fan SPC attained after blanking the cage is 0.70kWh/MT Cement. Total Cement Ground in Mill after carrying out the blanking = 6.51 Lac MT
Savings = 4,50,000 Lac Kwh = Rs 15.03 Lacs in 7 months =Rs 25 Lacs/ Annum
400 mm in complete
circumference
Utilisation of Renewable Energy
Integrity Commitment Passion Seamlessness Speed
100 kW Solar Power Bio-gas for Colony
0.005
0.01
0.015
0.02
0.025
2015-16 2016-17 2017-18
0.01
0.016
0.019
Solar Power Generation Share, %
Waste to Energy- WHRS
Integrity Commitment Passion Seamlessness Speed
10.77 MW WHRS for Line-4 Kiln
5
9
13
17
21
2015-16 2016-17 2017-18
9.73
15.76
19.1
WHRS Power Generation Share, %
Waste to Energy- AFR
Integrity Commitment Passion Seamlessness Speed
Semi Solid Mixing pit Wood chipper machine: Capacity 6 TPH
10000
12000
14000
16000
18000
20000
22000
24000
2015-16 2016-17 2017-18
12146
14905
21405
Quantity of AFR consumed, MT
Green House Gasses- Inventorisation
Integrity Commitment Passion Seamlessness Speed
350
400
450
500
550
600
650
700
750
2013-14 2014-15 2015-16 2016-17 2017-18 National
Benchmark
703 696679 668
636
450
Specific CO2 Emmission, kg/MT of Cement
• Maximize AFR usage • Maximize Fly ash usage• Energy consumption reduction• Consistent operation of WHR• Use of non-conventional source of energy like
solar, biogas etc.
Action plan for CO2 Emission reduction • Sapling Survival rate 80 – 85 %
• Total No. of plants (Plant area)–4.49
lakhs in 5 years
• Total area covered under green belt
(Plant & Colony) : 35.58 %
• Total No. of plants (Mines) –2.99 lakhs
• Biological study conducted in
2010
• No Flora & Fauna is affected by
Plant operations
• No Forest land & Protected areas
in the Plant and Mining area
Sustainability Initiatives
Integrity Commitment Passion Seamlessness Speed
Implementing green building concepts:
• Installation of transparent sheets.
• Installation of Sun Light tube.
• Rain water harvesting mechanism.
• Use of Fly ash brick.
• Use of Robo sand.
• Use of Apex paint.
• Use of star rated appliances.
• Replacement of incandescent lamps with
LED bulbs.
• Plantation of native plants.
In Mines Building – No electrical illumination is required during day time.
Water Conservation
Integrity Commitment Passion Seamlessness Speed
5
10
15
20
25
30
35
40
2013-14 2014-15 2015-16 2016-17 2017-18
34.31
24.9423.14
15.54
11.18
Water Consumption, Lac m3
0.01
0.04
0.07
0.1
0.13
0.16
0.19
2013-14 2014-15 2015-16 2016-17 2017-18
0.14
0.102
0.0770.059
0.036
Specific Water Consumption, m3/MT Clinker
Environmental Protection
Integrity Commitment Passion Seamlessness Speed
Capex Expenditure on Environment Protection in 2015-16
Cost (INR Crores)
Conversion of Line 1 Kiln & Pyro ESP in to Bag house 8.91
Conversion of Line 3 Kiln ESP in to Bag house 9.24
Line 4 WTP, Pumps & Pipes 3.13
Line 4 Bag house 2.91
Line 4 Cooler ESP 1.19
Capex Expenditure on Environment Protection in 2016-17
Cost (INR Crores)
Conversion of Line 3 Coal mill ESP in to Bag filter 3.82
Conversion of Line 3 Cement mill ESP in to Bag filter 0.88
Line 2 & 3 Cooler ESP T/R Sets 0.54
Road sweeping machine 0.53
Capex Expenditure on Environment Protection in 2017-18
Cost (INR Crores)
Carbon Powder Unloading System 0.40
Low NOx burners for Line-3 Kiln 1.50
Energy Monitoring & Energy Management System
Integrity Commitment Passion Seamlessness Speed
Energy Projects Implementation- Methodology
No. of Certified Energy Managers 7
No. of Certified Energy Auditors 1
No. of Certified Six-Sigma Green Belt Champions 50
No. of Certified Six-Sigma Black Belt Champions 3
Competent Evaluation Team
Energy Monitoring & Energy Management System
Integrity Commitment Passion Seamlessness Speed
Dedicated Energy monitoring system is provided in the main
substation through which the performance of all the major
HT, DC Drives can be monitored continuously. All the major
Drives, Incomers, Transformer feeders are connected with
the individual MassiBus meters are communicated to
Micrologix PLC through RS485 port for EMS scada system.
Daily Power Reporting Procedure -RC
➢ Meter energy data (Electrical) log at 00:00 hrs.➢ Meter wise report generated and Same report uploads in
SAP.➢ Process data like TPH, Running hrs etc. upload in SAP by
Process dept.➢ Final power report generated in SAP.
Energy Monitoring & Energy Management System
Integrity Commitment Passion Seamlessness Speed
PAT Performance
Integrity Commitment Passion Seamlessness Speed
DetailsAverage
Year 2007-10
TargetYear
2014-15
ActualYear
2014-15
TargetYear
2018-19
ActualYear
2015-16
ActualYear
2016-17
Actual Year
2017-18
Gate to gate SEC (Kcal/Kg of Cement –On OPC Basis)
1091.46 1039 1026 994 940 952 894
Base Line Year ( 2007-2010) SEC 1091 Kcal/kg OPCTarget SEC in year 2014-15 1039 Kcal/kg OPCSEC Reduction Target 52 Kcal/kg OPCActual SEC achieved 1026 Kcal/kg OPCActual SEC Reduced 65 Kcal/kg OPCTarget SEC in year 2018-19 994 Kcal/kg OPC
Employee Engagement in Energy Conservation & Improvement
Integrity Commitment Passion Seamlessness Speed
Kaizen-1 : Reduction in frequent damages of Blending Silo Top distributor.
Problems faced :- Frequent damage of the air slide Cloth of the silo top distributor. Stoppages (freq-3Nos) of Raw-mill due the jamming of the distributor. Loss of Rs-0.20L per stoppages. Total Loss-0.60L in FY-16-17.
Root cause derived:
Direct material impact on the air slide fabric causing more wear.
Kaizen Idea Generated :- To provide the impact cone below the discharge point , so that direct impact is avoided.
Benefits Achieved:-
➢ Stoppages avoided.
➢ Inventory control
➢Manpower cost control.
➢More productivity obtained
AfterBefore
Employee Engagement in Energy Conservation & Improvement
Integrity Commitment Passion Seamlessness Speed
Kaizen-2 : Providing fluidizing air in Multi-core & Multi-cell of Coriolis Feeder
Problems faced :- FC Min. fault in Coriolis Feeder leads to failure of Coal Dosing resulting in operational disturbance in Kiln.
Root cause derived:
1. Insufficient & uneven air flow through Multicell & Multicore which leads improper fluidization leading to Sudden stoppage & flushing of fine coal from Bin to Calibration tube.
Kaizen Idea Generated :-
1. Providing external aeration to avoid clogging/ air-pocketing of fine coal in the system so as to
continuously fluidize the fine coal.
Changes done :- Provided Compressed air-purging in tube calibrator with additional ring & blower air in multi-cell & multi-kor for maintaining the fluidization of fine coal.
Benefits Achieved:-
➢ Kiln operational disturbances avoided.
AfterBefore
Employee Engagement in Energy Conservation & Improvement
Integrity Commitment Passion Seamlessness Speed
Kaizen-3 : Smoke Chamber area enlargement In-house for enriching the oxygen at Kiln inlet
Problems faced :-Frequent jamming of Kiln Inlet with operation of high sulfur pet coke.
Root cause derived:
1. Due to jamming there is narrowing of inlet section leading to increase in velocity of gasses passing through the area & thus reduces the retention of gasses here, as a result reducing atmosphere is created which aggravates the coating tendency.
Kaizen Idea Generated :-
To decrease the velocity of gasses at kiln inlet keeping the same flow through kiln so as to increase the retention time of gasses for enhancing the Oxygen Concentration so as to avoid reducing atmosphere.
Changes done: - Kiln inlet roof area increased 12 m2 by extending the roof 400mm up.
Before After
Roof height increased by 400 mm
Benefits Achieved:-
With an investment of Rs 5,00,000, the following benefits were achieved :
• Enrichment in oxygen at kiln inlet by 1-1.5%
• Less coating formation @ kiln inlet.Decreasing the kiln inlet gas velocity by from 19.50m/s to 11.55m/s.
• The reduction in velocity gave an opportunity to reduce preheater fan Speed and thus achieved a SPC reduction of 0.10 kWh/T Clk.
Awareness Initiative on Energy & Environment
Integrity Commitment Passion Seamlessness Speed
0369
1215182124
2015-16 2016-17 2017-18
7.36
21.6
5.32
Kaizen Per Employee
0
0.05
0.1
2015-16 2016-17 2017-18
0.02
0.060.07
Kaizen Participation Index
Green Supply Chain Initiatives
Integrity Commitment Passion Seamlessness Speed
ISO Certifications
Integrity Commitment Passion Seamlessness Speed
Systems for continual improvements
Information Security Management
System
ISO-27001:2005 (ISMS)
National Accreditation Board for Testing
and Calibration Laboratories ISO-
17025:2005 (NABL)
Environmental Management System
ISO-14001:2015 (EMS)
Occupational Health & Safety Assessment
Series
ISO-18001:2007 (OHSAS)
Quality Management System
ISO-9001:2015 (QMS)
Social Accountability
SA8000:2014
Energy Management System
ISO-50001 (EMS)- final audit for certification
under progress
CSR Initiatives
Integrity Commitment Passion Seamlessness Speed
KGBVResidential Education facilities with vocationaltraining for Drop out girls in the age group of 11– 16 years from 6th to 10th std
Merit Scholarship
Selecting brilliant Students for providing the Merit Scholarship in 41 Govt.
Schools.
Tree Plantation
Efforts to maintain the ecological balancein villages with planting
Farm equipment's distribution
Agricultural equipment are provided to smalland marginal farmers living below povertyline.
Integrity Commitment Passion Seamlessness Speed
Excellence is Nothing But A Passionate Journey
driven by Positive Attitude.....
Thank You