Salient Technical Features
CLAUSE NO.
Salient Technical Features:
Limestone Handling Plant (LHP)
1.Limestone supplied to power plant through road by trucks. Lime stone received through Road shall be unloaded by Two (2) numbers Truck Tipplers unit each of minimum 40T capacity (Gross vehicle weight considered to be 60 T minimum) to discharge Limestone on to Box Feeders/ Surface Feeders/ Truck Unloading Hopper, complete with all mechanical, electrical and C&I, civil & structural works for unloading Limestone by truck tipplers.
2.Two (2) numbers Box Feeders/ Bulk-material Receiving Unit/ Surface feeder, for unloading of limestone from trucks/ self-tippling trucks/ loader shovels, complete with drives, accessories. All mechanical, electrical and C&I, Civil & structural works, including its supporting foundations etc. This unit shall feed limestone onto the conveyor before Limestone crusher house.
3.Limestone shall be conveyed to usage point through double stream of capacity 150TPH each for conveying & crushing. Lime stone belt conveyor along with associated system and accessories as per specification and standard is in the scope.
4.One (1) number Lime stone crusher house (CH) complete with all civil, structural, architectural and electrical works etc. accommodating 02 nos. crushers and associated vibrating screening feeders, R&P and Rod gates etc., passenger cum goods elevator, conveyors, chute work along with actuator operated flap gates, monorails & hoists, hoist maintenance platform, external and internal staircases, hand rails and other equipment such as sampling unit, dust extraction system etc. as specified elsewhere.
5.Two (02) numbers of vibrating screening feeders in limestone crusher house to feed the limestone to crushers with drives, dust hoods, all mechanical, electrical accessories and supporting structures etc.
6.Suitable numbers of hammer crusher complete with drives, accessories all mechanical, electrical civil & structural works, including crusher supporting foundations, vibration isolation system with springs and viscous dampers, vibration monitoring system etc.
7.Crushed limestone will be fed into belt feeder and bucket elevator. Complete belt feeder and bucket elevator assembly along with related mechanical, electrical and civil work is in the scope of bidder.
8.Suitable number of motorized travelling tripper / flow diverter plough (as applicable) on each feeding conveyor for feeding the crushed limestone to the storage silo. Trippers/plough feeder shall be complete with all mechanical, electrical equipment, rails, chute work, rail supporting structure (along with structural stools, as required), cables with cable festooning arrangement, thruster brakes, rail clamps, electric hoist, actuator flap gates etc.
9.Two number of covered storage silo to be provided for storage of crushed lime stone. The capacity of each limestone storage silo shall be 2000 MT. Suitable number of vibratory feeders below silos shall be provided taking feed from silo and discharging onto onward conveyors and Bucket elevators to feed into day’s silo of employer scope.
10.One (1) nos. of lime sampling units, one for as received limestone in crusher house complete with all accessories and electrical, civil, structural works, supporting structures, approach/maintenance platforms, hoists etc.
11.Suitable number of ploughs and its actuating mechanism shall be mounted on each conveyor with bucket elevator to feed limestone into limestone days silo /mill bunkers.
12.Minimum two (2) Nos. sump pumps in limestone storage shed complete with motors, local control panel, level switches, individual discharge piping with fittings and valves to bottom
SIPAT, ST-II (2X500 MW) FGD
LIMESTONE HANDLING, CRUSHING AND Salient Technical FeaturesPAGE 1 OF 3 GYPSUM STORAGE PACKAGE
Salient Technical Features
CLAUSE NO.
ash slurry sump /disposal point as specified during detail engineering including pipes etc. Along
with main silo area separate sump pump also require in truck unloading zone, which is to be provided by bidder.
13.One (1) number of conventional enclosure type passenger cum goods elevator having capacity of 16 persons (1088 kg) complying to IS:14665 (latest edition) with drives, all electrical, mechanical, civil, structural & associated foundation works, accessories and electrical to serve various floors of lime stone crusher house. Staircase access for machine room shall also be provided by the bidder.
14.Two (2) numbers of in line magnetic separators (one no. on each conveyor feeding to crusher house) and two (2) number of suspended magnets, (one no. on each conveyor feeding to Limestone silo on conveyors, complete with reject chutes, reject trolleys, supporting arrangement and all mechanical, electrical, civil, structural works and accessories.
15.Two (2) numbers of metal detectors (min. one no. on each conveyor feeding to crusher house complete with all mechanical, electrical, civil, structural works and accessories.
16.Two (2) numbers of electronic type belt scales (min. one no. on each conveyor feeding to crusher house for continuous weighing, complete with all mechanical, electrical, civil, structural works and accessories.
17.Complete dust extraction system for control of fugitive dust in limestone storage shed / Silos, junction towers, crusher house complete with fans, drives, hoisting arrangements, ducting, piping, valves etc. electrical, accessories, civil, structural and architectural works.
18.Service water and potable water system for complete limestone handling plant. Water Pump houses & water tanks for service water, cooling water (as applicable) and potable water system.
19.Cooling water system (as applicable) for scoop couplings, for complete limestone handling plant. Air-cooled type scoop couplings are also acceptable.
20.Monorails and electrically operated hoist blocks as well as hand operated chain pulley blocks for servicing/installation/easy replacement of drive machinery, different types of pulleys for all conveyors, GTU and other equipment from ground level to their locations and vice-versa & landing inside the respective Buildings.
21.One (1) number of belt vulcanizing machine, suitable for all belt widths in limestone handling system, complete with all mechanical, electrical, accessories and consumables for one year of consumption. Further belt jointing facilities as specified shall be provided.
22.Minimum one (1) no. Weighing Bridge of capacity 100 MT for Road trucks / Tipplers shall be provided in Limestone unloading and Gypsum loading area as per lay out feasibility at site.
23.All buildings shall be complete with all electrical, civil, structural, architectural works, cable trenches, fire safety walls, foundation, earth mat, fencing, earthing for transformers. All cables, duct banks, trenches, cable trestles shall be complete with associated civil/ structural work and necessary civil foundations.
24.Drainage of LHP buildings, tunnels, conveyor galleries and limestone storage shed / Silos including all civil & structural works as detailed out elsewhere in the specification.
25.All equipment/fittings, supporting structure, along with insert plates, bolts, accessories, MS sleeves, base plates, grouting as may be required and proper alignment etc.Complete un- used set of all special tools and tackles, which are necessary or convenient for erection, commissioning and overhauling of any equipment, covered under the scope.
SIPAT, ST-II (2X500 MW) FGD
LIMESTONE HANDLING, CRUSHING AND Salient Technical FeaturesPAGE 2 OF 3 GYPSUM STORAGE PACKAGE
Salient Technical Features
CLAUSE NO.
26.First fill of all consumables, e.g.; oils and lubricants for first fill and one year toppings requirements shall be in the bidder scope.
27.Preservative shop coating, final painting of all structures and equipment.
28.All inserts, anchor bolts, foundation bolts for contractor’s equipment, platforms etc. in the entire LHP.
29.All necessary grouting & finishing of the floor after welding at all such pockets & elsewhere is in Contractor’s scope.
GYPSUM HANDLING PLANT (GHP)
1.Gypsum shall be conveyed from the vacuum belt filter to the storage shed through a series of double stream conveyors and transfer points/junction towers as applicable.
2.One number of covered storage shed for gypsum. The minimum size of storage shed is indicated in the flow diagram to store gypsum equivalent to gypsum generation of minimum 7 days at Design point (Generation of all units to be considered).
3.Minimum two (2) nos. sump pumps in gypsum storage shed complete with motors, local control panel, level switches, individual discharge piping with fittings and valves upto bottom ash slurry sump /disposal point as specified during detail engineering.
4.Complete plain water sprinkler type dust suppression system for control of fugitive dust in gypsum storage shed, complete with pumps, water tanks, drives, hoisting arrangements, ducting, piping, valves etc. electrical, accessories, civil, structural and architectural works.
5.Service water and potable water system for complete gypsum handling plant. Water Pump houses & water tanks for service water, cooling water and potable water system. Common pump house for Limestone handling plant gypsum handling plant is also acceptable.
6.Suitable number of motorized travelling tripper / Flow diverter (as applicable) on each feeding conveyor for feeding the gypsum to the covered storage shed. Trippers shall be complete with all mechanical, electrical equipment, rails, chute work, rail supporting structure (along with structural stools, as required), cables with cable festooning arrangement, thruster brakes, rail clamps, electric hoist, actuator flap gates etc.
7.Requisite facilities in Gypsum storage shed for loading the Gypsum from storage shed to user’s trucks using front end loader/ pay loader. Front end loader/ pay loader is not in bidder’s scope.
8.Bidder to note that the above list is inclusive but not exhaustive and any work required for integration of complete system and ensuring its satisfactory running shall be included in the scope of work and same to be provided for this package.
SIPAT, ST-II (2X500 MW) FGD
LIMESTONE HANDLING, CRUSHING AND Salient Technical FeaturesPAGE 3 OF 3 GYPSUM STORAGE PACKAGE
