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PRESENTATIONS ON
REVAMP, TECHNOLOGY UPGRADATION & CAPITAL REPAIR OF
BRIQUETTING PLANT ON CONVERSION CHARGE BASIS.
CAPITAL REPAIR AND MODIFICATION OF BAG HOUSE AT LIME DISCHARGING BUILDING FOR 50 Mg/Nm3 STACK EMMISSION.
MECHANISED HOUSE KEEPING WITH VACUUM CLEANINGSYSTEM ON BOOT BASIS.
TECHNO ENVIRO SERVICES PVT LTD
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Bokaro Steel Plant
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The process of transforming
finely divided particles
into particles of a larger size
by the introduction of outside forces.
TECHNO ENVIRO SERVICES PVT LTD
*BRIQUETTING*
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Lime Briquetting Useful IndustrialMaterial Recycling Process Successfully Implemented
ATVISAKHAPATNAM STEEL PLANT
Production Started in 1996By our Associates
AVANI LIME TECH PVT LTD
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TECHNO ENVIRO SERVICES PVT LTD
VISAKHAPATNAM STEEL PLANT
The Briquetting rolls are 18" (457.2mm) in diameter and 6" (152.4 mm) wide, with half-briquette cavities machined into their circumference faces.
Calcium Stearate is added as a Binder & Lubricant
Briquettes Shape: Almond shapeSize along major axis: 50mmSize along minor axis: 25mm
Thickness: 20mm
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TECHNO ENVIRO SERVICES PVT LTD
Preserves our Natural Resources by Decreasing the demand for Virgin Materials
Conserves Energy and Reduces Greenhouse Gas Emissions by Decreasing the demand for Products made from Energy Intensive Manufacturing Processes
Save Money by Decreasing Disposal Costs for the Generator and Decreasing Materials Costs for End Users
Minimize or Eliminate Dust
Improve House Keeping
Specifically at BSL, Stop (-) 10 mm Lime going in the Converter
Reasons Industrial Materials Recycling
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TECHNO ENVIRO SERVICES PVT LTD
When limestone is calcined in kilns for quicklime10 to 20 per cent of the stone abrade & emerge as
finesHandling and shipping the fines is difficultThere are various industrial processes to use finesMore practical alternative
IS
#Quicklime fines into Briquettes#
PROBLEM & SOLUTION
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TECHNO ENVIRO SERVICES PVT LTD
Lime briquetting is a process ofcompaction of lime fines intobriquettes of a size similar to thepremium product in almond shapes.
In this form, the full volume of finescan be reclaimed and used alongwith the top-quality lime.
This can significantly improve plantproductivity and cut unit costs bymaking use of raw material.
PROCESS
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TECHNO ENVIRO SERVICES PVT LTD
Binders & Lubricants
•Binders or Lubricants are additives that increase the strength of the briquette by helping to hold the particles together.
•Lubricants are mixed into the feed material before briquetting and provide a denser briquette by reducing friction between particles during compaction.
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TECHNO ENVIRO SERVICES PVT LTD
The basic components of a roll-type briquetting Machines are two rotating rolls , with half-briquette cavities cut into the circumference of each. The cavities on opposing rolls match up as the rolls turn, momentarily forming whole cavities as both halvessimultaneously pass through the roll centre-line.
The Briquetting Machines
Loose material is fed between the rolls at their nip region (where the rolls come together), filling the cavities just prior to closure. Pressure applied to the material by the closing of the cavities compresses the materials into a solid mass. As each cavity passes beyond roll center-line, its two halves naturally move apart, allowing the formed briquette to slide out and discharge from the machine.
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TECHNO ENVIRO SERVICES PVT LTD
TYPICAL FLOW DIAGRAM
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TECHNO ENVIRO SERVICES PVT LTD
TYPICAL FLOW DIAGRAM
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TECHNO ENVIRO SERVICES PVT LTD
At Bokaro Steel Plantin the RMP
area one Quick Lime Fines Briquetting Plant was commissioned in the year 1990
and due to change in the product mix it is lying inoperative for more than 20 years
Lime Fines Briquetting System was Designed, Manufactured & Commissioned by Macmet
BOKARO STEEL PLANTBriquetting Plant
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TECHNO ENVIRO SERVICES PVT LTD
PROBLEM
Briquetted lime produced had the crush strengthless
than that of natural pebble lime As a result, briquettes would suffer
breakage and disintegration during material handling breaking into powder
half way to the user departments , SMS I & II.
This exactly what CAUSED the RMP
SYSTEM TO FAILURE
BOKARO STEEL PLANTBriquetting Plant
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TECHNO ENVIRO SERVICES PVT LTD
BOKARO STEEL PLANTBriquetting Plant
Material Flow Diagram
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TECHNO ENVIRO SERVICES PVT LTD
BOKARO STEEL PLANTBriquetting Plant
Briquetting Flow Diagram
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TECHNO ENVIRO SERVICES PVT LTD
BOKARO STEEL PLANTBriquetting Plant
Condition of 1st Machine
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TECHNO ENVIRO SERVICES PVT LTD
BOKARO STEEL PLANTBriquetting Plant
Condition of 2nd Machine
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TECHNO ENVIRO SERVICES PVT LTD
PRESENT STATUS OF LIME FINES BSL
At present the entire (-) 10 mm quick lime not separated at any stage, thus being fed in the Converters.
The fines are generating pollution problem at all the area involved i.e. Lime Receiving Building, Junction Houses, and SMS I & II.
There are approximately 100 tons per day (-) 10 mm lime is generated. The Guaranteed generation has been advised of 50 tons
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BOKARO STEEL PLANTBriquetting Plant
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TECHNO ENVIRO SERVICES PVT LTD
APPROX TOTAL COST OF WORK INCLUDING SUPPLIESRs16 80, 00,000/-
PROCESSING COST PER TONNE (based on 50 tons/day)Rs 5,000/Ton
COST of Production of Lime for BSL Rs 10,500/Ton
Cash Accruals per AnnumRs 18 crores
Material Recovery per Annum37,000 Tons
CLEAN ENVIRONMENTNO FINES ADDED TO CONVERTORSOLD PLANT VALUE REALISATION
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BOKARO STEEL PLANTBriquetting Plant
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TECHNO ENVIRO SERVICES PVT LTD
LIME DISCHARGING BUILDIND
System is not working at all
No Proper Skirting
All Dampers failed
Purging System failed
Bags are removed or choked
Air Compressor not working
Suction also seems to be less
STATUS
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TECHNO ENVIRO SERVICES PVT LTD
LIME DISCHARGING BUILDIND
We will do total System
Up gradationCapital RepairReplacing the type of Bags and sizeNew latest Air Purging SystemNew Air Compressor with DrierWill do O & M with spares
AND
Guarantee less then 50 mg/Nm3 Stack emission
For a lumsum per month charges including cost of finance and O&M
SULUTION
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TECHNO ENVIRO SERVICES PVT LTD
LIME DISCHARGING BUILDIND
We will
INSTAL INDUSTRIAL VACUUM CLEANING & RECOVERY SYSTEM
ON
BUILT OPERATE & TRASFER BASIS
INDUSTRIAL VACUUM CLEANING SYSTEM
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TECHNO ENVIRO SERVICES PVT LTD
LIME DISCHARGING BUILDIND
INDUSTRIAL VACUUM CLEANING SYSTEM
P & I DIAGRAM
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TECHNO ENVIRO SERVICES PVT LTD
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Bokaro Steel Plant