electrostatic precipitator related
DESCRIPTION
ESPTRANSCRIPT
2 X 600 MW THERMAL POWER PLANT PROJECT
PRESENTATION ON ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023
PREPARED BY
S. DELHI BABU
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
CONTENTS
INTRODUCTION
PRECIPITATOR COMPONENTS
ARRANGEMENTS
BASIC PRINCIPLE
TECHNICAL SPECIFICATION
ERECTION SEQUENCE
INTRODUCTION We are Setting up 2x600 MW Coal Based Thermal Power Plant at Mahan Bandhaura Site.
Electrostatic Precipitator is playing a vital role in most of the industries, such as1) Thermal Power Plant 2) Cement Plant3) Chemicals industries 4) Steel Plant 5) Paper Industries & etc
An electrostatic precipitator is a large, industrial emission-control unit. It is designed to trap and remove dust particles from the exhaust gas stream of an industrial process.
In large power plants may actually have multiple no. of fields for each unit. In our plant, there are 9 no. of fields per unit.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
MAJOR COMPONENTS OF ESP:1) Rectifier Transformer2) Discharge Electrodes3) Collecting Electrodes4) Gas Distribution Systems5) Rapping system6) Hopper.
About Rectifier Transformer:- The power supply system is designed to provide high voltage to the field to increase the
collection efficiency at the highest possible level
The power supply system has four basic components:1) Step-up transformer2) High-voltage rectifier 3) Sensing device 4) Automatic voltage control
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
DESCRIPTION ABOUT THE POWER SUPPLY SYSTEM
The voltage must be controlled to avoid causing sustained arcing or sparking between the electrodes and the collecting plates
Automatic voltage control varies the power to the transformer-rectifier in response to signals received from sensors in the precipitator and the transformer-rectifier itself.
AVR monitors protects the internal components from arc-over damages, and protects the transformer-rectifier and other components in the primary circuit.
Automatic voltage control would produce the maximum collecting efficiency by holding the operating voltage of the precipitator at a level just below the spark-over voltage.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Spark reaction When the voltage applied to the field is too high, then spark over will occur.
A voltage controller will monitor the primary and secondary voltage and current of the circuit, and detect a spark over condition.
Once detected, the power applied to the field will be immediately cut off or reduced, which will stop the spark.
After a short amount of time the power will be ramped back up, and the process will start over.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Tripping
When a condition occurs that the voltage controller cannot control, often times the voltage controller will trip.
A trip means the voltage controller (by way of the contactor) will shut off the individual precipitator power circuit.
A short inside the electrostatic precipitator field caused by a fallen discharge electrode (wire), or a shorted out Silicone Controlled Rectifier are examples of
conditions that a voltage controller cannot control.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
About Discharge Electrodes:- Discharge electrodes emit charging current and provide voltage that generates an
electrical field between the discharge electrodes and the collecting plates.
The particles then precipitate onto the collecting plates. Common types of discharge electrodes include:
1) Straight round wires 5) Rigid frames 2) Rigid spiked pipes 6) Spiral wires 3) Twisted wire pairs 7) Barbed discharge wires 4) Rigid masts
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Rigid Electrode Spiral Electrode
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
About Collecting Electrodes:- Collecting plates are designed to receive and retain the precipitated particles until they
are intentionally removed into the hopper. Collecting plates are also part of the electrical power circuit of the precipitator.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
About Gas distribution system:
Gas velocity distribution can be most effectively influenced by the use of gas distribution devices. Ideally, uniformity is desired in:
1. Gas velocity 2. Gas temperature 3. Dust loading
Gas distribution devices consist of turning vanes in the inlet ductwork and perforated gas distribution plates and in the outlet fields of the precipitator, flat distribution plate is used.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
INLET GD SCREEN OUTLET GD SCREEN
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Rapping System:To improve collection efficiency and ensure proper functional use of the precipitator, a rapping system is applied to the collection and emitting electrodes to dislodge the collected dust layer.
1) Collecting Rapping System:
Collecting plate rapping must remove the bulk of the precipitated dust. The collecting plates are supported directly with hooks from the precipitator casing.
The impact of the rapping system is directed into the Shock bar located at the leading and/or trailing edge of the collecting plates.
The first electrical field generally collects about 60-80% of the inlet dust load. So the first field plates should be rapped often for the every cycle.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Collecting Rapping System
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
COLLECTING FRAME
COLLECTING PLATE
SHOCK BAR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Field No. Stage Efficiency % Rapping frequency, Raps/hr
1 80% 6/Hr
2 15% 4/Hr
3 3% 2/Hr
4 1.2% 1/Hr
5 0.55% 1/2Hr
6 0.11% 1/4Hr
7 0.032% 1/8Hr
8 0.007% 1/day
9 0.001% 1/2day
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
1) All the above data are estimated value, especial the rapping mechanism. It should be adjusted iterative according to actual working condition.
2) Each rapping time is 1.5 mins
ELECTROSTATIC PRECIPITATOR
Rapping cycle for the each field as follows:-
2) Emitting Rapping SystemIn general, discharge electrodes should be kept as free as possible of
accumulated particulate. The rapping system for the discharge electrodes should be operated on a continuous schedule with repeat times in the 2 - 4 minute range, depending on the size and inlet particulate loading of the precipitator.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
3) Rapping System for Distribution ScreenThe gas distribution plates should also be kept free of excessive particulate buildup and may require rapping on a continuous base with a cycle time in the 10-20 minute range, depending on the inlet particulate loading of the precipitator and the nature of the particulate. Gas distribution plates in the outlet of the precipitator may be rapped less often (every 30 - 60 minutes).
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
4) Bottom HopperPrecipitator hoppers are designed to completely discharge dust load on demand. Typically, precipitator hoppers are rectangular in cross-section with sides of at least 60-degree slope. These hoppers are insulated from the neck above the discharge flange with the insulation covering the entire hopper area. In addition, baffles are provided in the hopper to avoid the seepage.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
8400mm
56
50
mm
Hopper
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
ARRANGEMENTS: ESP 1 PASS
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
9
P to
Q -
1st
FIE
LD
R to
S –
3n
d
FIEL
D
S to
T –
4th
FI
ELD
T to
U –
5th
FI
ELD
U to
X –
6th
FI
ELD
X to
Y –
7th
FI
ELD
Y to
V –
8th
FI
ELD
V to
W –
9th
FI
ELD
Q to
R –
2n
d
FIEL
D
Emitting electrodes - RSB Wire Emitting electrodes - Spiral Wire
ESP
1ST
PA
SS
12.7m/s 12.4m/s
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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COLLECTING & EMITTING PLATE ARRANGEMENT FOR 1ST TO 6TH FIELD.
Emitting plate – 4 layers
Collecting plate
EACH HEIGHT OF THE COLLECTING PLATE 15 M
EACH HEIGHT OF THE RSB WIRE 3.581 M
DETAILS OF COLLECTING ELECTRODE
NO. OF COLLECTING ELECTRODE IN HALF FIELD (8*43) 344 No's
NO. OF COLLECTING ELECTRODE IN ONE FIELD 688 No's
NO. OF COLLECTING ELECTRODE IN SINGLE PASS (688*9) 6192 No's
NO. OF COLLECTING ELECTRODE IN TWO PASS (6192*2) 12384 No's
400mm
200mm 200mm
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
COLLECTING & EMITTING PLATE ARRANGEMENT FOR 1ST TO 6TH FIELD.
DETAILS OF EMITTING ELECTRODES (RSB WIRE)
NO. OF RSB WIRE BETWEEN TWO COLLECTING ELECTRODE No's 4
NO. OF RSB WIRE IN HALF FIELD No's 1344
NO. OF RSB WIRE IN ONE FIELD No's 2688
NO. OF RSB WIRE IN SINGLE PASS FROM 1st TO 6th FIELD(2688*6) No's 16128
NO. OF RSB WIRE IN TWO PASS FROM 1st TO 6th FIELD(16128*2) No's 32256
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
COLLECTING & EMITTING PLATE ARRANGEMENT FOR 7TH TO 9TH FIELD
DETAILS OF EMITTING ELECTRODES (SPIRAL WIRE)
NO. OF SPIRAL BETWEEN TWO COLLECTING ELECTRODE No's 8
NO. OF SPIRAL WIRE IN HALF FIELD No's 2688
NO. OF SPIRAL WIRE IN ONE FIELD (2688*2) No's 5376
NO. OF SPIRAL WIRE IN SINGLE PASS FROM 7th TO 9th FIELD(5376*3) No's 16128
NO. OF SPIRAL WIRE IN TWO PASS FROM 7th TO 9th FIELD No's 32256
Emitting plate – 4 layers
Collecting plate
• COLLECTING PLATE SUPPORTED ARRANGEMENT
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Collecting Plate
Emitting Plate
Guide Bar
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
COLLECTING FRAME
Collecting System
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
COLLECTING FRAME
COLLECTING PLATE
SHOCK BARAVIL PLATE
RAPPER
SHAFT
Emitting System Support:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
• Emitting System Support:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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SUPPORT INSULATOR
HANGER BOLT
VERTICAL BOX
HORIZONTAL EMITTING FRAME
BEAM
BEAM
CHANNEL WITH INNER ROOF
TEMPORARY HANGER BOLT
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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SUPPORT INSULATOR AT FOUR CORNERS
SUPPORT INSULATOR AT FOUR CORNERS
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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VERTICAL BOX
HORIZONTAL EMITTING FRAME
EMITTING ELECTRODE (RSB
VERTICAL VIEW OF EMITTING SYSTEM SUPPORTTED
• EMITTING FRAME FOR 1ST to 6TH FIELD:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Emitting Frame
RSB Electrode
Emitting Frame
Collecting Electrode
TOP VIEW OF EMITTING FRAME
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
INNER WALK WAY
EMITTING FRAME
VERTICAL BOX
EMITTING FRAME FOR 7TH TO 9TH FIELD:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Emitting Frame
Spiral Electrode
Collecting Electrode
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
VERTICAL BOXHORIZONTAL
EMITTING FRAME
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
• HV inlet:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
BASIC PRINCIPLES:-
Electrostatic precipitation removes particles from the exhaust gas stream by Six activities typically and they are
1) Ionization
2) Migration/Drift Velocity
3) Precipitation.
4) Charge Dissipation
5) Particle Dislodging
6) Particle RemovalSaturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Collecting electrode,grounded
Discharge electrode withNegative high tension volatge (72 KV)
4
Dust layer1
1.Electron emission
2
2.Dust particle charging/ corona formation
5
5.Rapping
3
3.Migration
4. Precipitation
Working Principle: The high voltage supply (72 KV) is applied to the Field, the discharge electrode emits the
negatively charged ions. Particles suspended in a gas enter the precipitator and pass through ionized zones around
the high voltage discharge electrodes, the particles are get ionized with negative and positive charged ions. This is called as Corona Formation
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
The negatively charged gas field around each electrode charges the particles causing them to migrate to the electrodes of opposite polarity, i.e. the collecting electrodes.
The charged particles gather on the grounded collecting plates. Rappers dislodge the gathered particulate, which falls into the collection hoppers for removal.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
ESP TERMINOLOGY
TECHNICAL SPECIFICATION: [General Information about ESP]
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Manufacturer SUNYARD
2 Type and No. 2SY504-9
3 Overall dimensions (L X W X H)
73.93×53.15×33.7( m
)4 Number of ESP / Steam generator 2/1
5 Number of gas stream / ESP 2/1
6 Number of electrical fields in series in gas path / stream 9/1
7 Total active treatment length per stream (in m) 36
8 Treatment time (In sec) 40.9
9 Corona power per ESP stream (watts per 1000 m3 per min) 49
10 No. of hours ESP can run at specified gas flow and dust loading without emptying any hopper (hrs) 2
11 Total power input to the ESP per steam Generator 4400 KW
FLUE GAS:
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
S. NO DESCRIPTION UOM DESIGN COAL WORST COAL
FLUE GAS
1Flue gas amount at inlet of E.S.P m3/hr 1604198 1696002
2Flue gas temperature at inlet of E.S.P
oC 136 135
3Excess air coefficient at inlet of E.S.P
1.34 1.333
4Dust concentration of flue gas at inlet of E.S.P
g / Nm3 63.573 74.931
5 Dust concentration at the ESP outlet mg / Nm3 50mg/Nm3 50mg/Nm3
ELECTROSTATIC PRECIPITATOR
COLLECTING ELECTRODE SPECIFICATION
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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S. No Description Data
1 Type 480C
2 Material SPCC
3 Electrode thickness (mm) 1.5
4 Clear distance between collecting electrode plates(mm ) 400
5 Active length per electrode (in m) 0.48
6 Cross sectional area of each passage (in m2) 504×2
7 Active height per electrode(in m ) 15
8 Specific collection plate area (m2/m3/sec) 204.1
9 Total number of electrodes per SG 2×6192
10 Aspect ratio length / height 2.24
11 Average gas velocity in the electrical field(m/s ) 0.88
DISCHARGE ELECTRODE SPECIFICATION
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Type I to VI field RSB, I to IX Ⅴ
field spiral wire.
2 MaterialI to VI field SPCC, I to IX Ⅴ
field stainless steel.
3 Total number of electrodes / SG (RSB Wire) 2 X 16128
4 Total number of electrodes / SG (Spiral Wire) 2 X 16128
5 Electrode dimension height (m) 3.581
6 Effective length of electrode(m) 15
High Voltage Conductor
7 Manufacturer SUNYARD
8 Type taper
9 Size 150Φ x400( mm)
BUS SECTION SPECIFICATION
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Total numbers 36
2 Number of bus sections in parallel in gas path 4
3 Number of sections in parallel in gas path 2
4 HT Voltage [kV (peak)] 72
5 Total power on HT electrode(kW) 4400KW
6 Number of sections lost if one transformer is out of service 1/2
COLLECTING RAPPER SPECIFICATION
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Type Side driven, flexible arm
rapper.
2 Total no. of rapper drive 2 x 18 no’s
3 Total number of rappers per SG 2 x 774 No’s
4 Maximum number of electrodes rapped by a rapper at any one time 8
5 Percentage of plates rapped at one time ( % ) 50
6 Rapping acceleration force minimum / plate(g ) 150
7 Average input rapping power to rapping system (kW ) 13.32
8 Rapper controller type electronic program
DISCHARGE RAPPER SPECIFICATION
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 TypeTop driven, flexible arm
rapper.
2 Total no. of rapper drive 2 x 18 No’s
3 Total number of rappers 1476
4 Percentage of electrodes rapped at any time ( % ) 50
5 Rapping energy of each rapper ( kgs.) 50
6 Average input power to rapping system ( kW ) 13.32
7 Rapper controller type electronic program
TRANSFORMER RECTIFIER UNIT
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Total numbers 36
Transformer
2 Type of transformer oil immersed
3 Class of insulation F
4 Temperature rise of oil over ambient ( 0C ) ±50
5 Class of bushing 35KV
6 Rating of each set
Input power kVA 206 kVA
7 Output power kW 120 kW
8 Output Voltage KV 72 KV
9 Output current mA 2000 mA
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
10 Volume of oil (Liters ) 900 Liters
Rectifier
11 Type Bridge type
12 Half-wave / full wave full wave
13 Guaranteed life ( hours ) 80000 hours
Rating-each Rectifier unit
14 Number offered 36 sets
15 Type of cabinet MNS
16 Voltage for controller AC 110V
17 Arc suppression 2500V
18 Protection IP42
19 Instrumentation provided as required Volt meters, ampere
meters,
POWER CONSUMPTION OF ESP PER SG
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
S. No Description Data
1 Input power (kVA ) 206 kVA2 Output power from TR sets kW 120 Kw/TR3 Output voltage KV 72 kV4 Output current mA 2000 mA
5 Total connected load kW 118 kW
6 Maximum power requirement kW 154 kW
7 Corona power available Watts / m2 26 Watts / m2
8 Auxiliary power kW 0.25 kW
9 Rapping system kW 0.74 kW
10 Seal air fan kW 0.01 kW
11 Seal air heaters (during start up/ normal) kW 0.05 kW
12 Hopper heaters kW 4.5 kW
ERECTION SEQUENCE
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Check and set out the foundation
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
Check and set out the foundation
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
Erection of Steel Structures
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Erection of Steel Structures
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Erection of pedestal
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Erection of pedestal
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Erection of pedestal
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Erection of pedestal
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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Assemble the ash Hopper
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Assemble the ash Hopper
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Erect the ash hopper
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Erection the Ash hopper
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Erect the casing
CASING STRUCTURE CASING WALL LRB TRB LRB
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CHANNEL WITH INNERROOF
GABLE WALL
GABLE WALL
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
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GABLE WALL
DISTRIBUTION SCREEN – O/LOUTLET HOOD
70
5600/6192 COLLECTING PLATES ERECTED
ELECTROSTATIC PRECIPITATOR
PASS ’A’
71
10768/6192 COLLECTING PLATES ERECTED
ELECTROSTATIC PRECIPITATOR
PASS ’B’
72
PASS’A’ PASS’B’
5961/12384 COLLECTING PLATES ERECTED
ELECTROSTATIC PRECIPITATOR
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Erect the stairs and approaches
Assemble the emitting frame
Lift the collecting and emitting frame
Lift the emitting hanging beam
Check the emitting and collecting system
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Install the roof
Install the pressure-bearing insulator
Assemble the inlet funnel
Assemble the outlet funnel
Install the inlet/outlet funnel
Install the heat insulation can and insulation axis
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR
Install the HV leading-in wire
Install the top penthouse and lifting system
Install the rapping system
Install the grounding device
Install and check the electrical equipment
Install the hopper wall vibrator, ash exhaust, level indicator and electric heater.
Saturday, April 22, 2023 2 x 600 MW Mahan Thermal Power Project
ELECTROSTATIC PRECIPITATOR