CE & DE INSTALLATION

 HOME    ELECTROSTATIC   PRECIPITATOR  

                                         

Electrostatic Precipitator  _    LODGE  COTTRELL

NOW ENQUIRY| get the latest info.                                                    

MY BRIEF INTRODUCTION   

The blog have been started while  working with M/s Lodge Cottrell for  the project work of Renovation and Modification work of Electrostatic Precipitator in NTPC,Badarpur, New Delhi.

However presently  working independently with companies as channel partner is a challenging job and dealing in
power plants, electrostatic precipitator (ESP), bag houses,bagging and packaging plants, independent supplier for equipment and Accessories.

                             



   

Reverse Air Bag House

Besides this our work involved in the development of complete microprocessor controller, Manufacturing components including all plastic , mold dies making,electronic circuit system programming 
testing etc.

In brief we are service provider in Installation, Commissioning of Equipment, Manpower For Testing And Project Completion Or Handing Over To Client Services.

The past work and long years work with following  companies  dealing in material handling equipment, Ash handling System,electrostatic precipitators and bag filters/bag houses.
 EX WORKED WITH M/S ELECON-power build GROUP                                             ,                                            M/S MACAWBER BEEKAY

, M/S HIMENVIRO,

 M/S LODGE COTTRELL 

MAJOR PROJECT EXECUTED DURING MY SERVICE TENURE:
steel plant:
1)NEW ERECTION ON CAST HOUSE FUME EXTRACTION (CHFE) SYSTEM IN BLAST FURNACE -1( BF-1) AT RASHTRIA ISPAT NIGAM LIMITED(RINL) ,VISAKHAPATNAM,A.P.
thermal power plants:
2) WORK OF 2x210 MW , R & M WORK OF NEW ESP INSTALLATION AT BADARPUR THERMAL POWER STATION NTPC LTD
3)DRY FLY ASH CONVEYING AND TRANSPORTATION SYSTEM FOR 3 x 500MW POWER PLANT NTPC RAMAGUNDAM STTP
cement plant:
4)TURNKEY PROJECT FOR M/S DALMIA CEMENT BHARAT LTD- KADAPA, ANDHRA PARDESH & ARIYALUR,TAMILNADU FOR 400TPH CEMENT PLANT, BAG HOUSE RABH ,KILN/RAW MILL,ELECTROSTATIC PRECIPITATOR FOR COOLER VENT
sugar, fertilizer,chemical plants:
5) INSTALLATION AND COMMISSIONING OF BAGGING MACHINE AND COMPLETE PLANT.
sugar, cement, aluminium, power plants:
6) INSTALLATION AND COMMISSIONING OF ASH HANDLING SYSTEM

A Video Showing Working of Electrostatic Precipitator by Animation:

The service offered in electrostatic precipitator spares. Some kind of   electrostatic precipitator (esp) spares are listed below

• emitting / discharge electrode
• collecting electrode
• shaft insulator
• support insulator
• pin wheel
• outer arm - special type hammers
• inner arm
• plain bearing
• emitting electrode frame
• emitting electrode suspension system
• collecting electrode suspension system

LODGE COTTRELL :

ELECTROSTATIC PRECIPITATOR

An Electrostatic Precipitor is a large ,industrial emission control unit. It is design to trap and  remove  dust particles from the exhaust gas stream of an industrial process.

Electrostatic Precipitor's function by electrostatically charging the dust paricles in the gas stream.The charged particles  are then attracted to and deposited on plates or other collecting devices.
         Depending on dust characteristics and the gas volume to be treated, there are many different sizes, types and design of  electrostatic precipitators.

Six activities typically takes place in an electrostatic precipitator:

• Ionization is charging of particles
• Migration is transporting the charged particles to the collecting surfaces.
• Collection is the precipitation of  the charged particles on the collecting  surfaces.
• Charge Dissipation- Neutralizing the charged particles on the collecting surfaces.
• Particle Dislodging for removing the  particles from the  collecting surfaces to the hoppers.
• Particle Removal- conveying the particles from the hopper to a disposal point  

Electrostatic Precipitator Basic Knowledge

The Electrostatic Precipitator in an industry ,its basic knowledge of working,we discuss as herunder. The Introduction to Precipitator is a great starting point for background information, or proceed directly to specific topic areas of interest.

The downloadable manuals at the right are made available by the Environmental Protection Agency (EPA) at www.epa.gov and provide detailed information about electrostatic precipitator design, operation and maintenance.

Brief About Electrostatic Precipitator                                                                                                   

Introduction to Precipitators
Basic Principles

Brief About Precipitator Operating Theory

Design & Performance Requirements 
Process Variables

Brief About Precipitator Components

Discharge Electrodes
Collecting Plates
Power Supplies and Controls
Gas Distribution Systems
Rapping Systems
Hoppers and Dust Handling
Ductwork 
Heaters and Purge Air Systems
Thermal Insulation

Brief About Precipitator Performance

Gas Distribution
Re-entrainment
Corona Power
Performance Improvements
Equipment Improvements
Combustion Process Improvements (Power Plants)Flue Gas/Fly Ash Conditioning (Power Plants)

Following are details of  assembly work at site :

                                                                                                             

CE & DE Assembly on Ground for lifting and installation inside casing.

Some of data of Electrostatic Precipitator working in Delhi ,India:The performance monitoring of selected electrostatic precipitators were carried out in consultation with CPCB. Additional study has been undertaken at one unit (Unit V - 60
MW unit at Indraprastha Power Station, DVB, Delhi), where major modifications have
been made in the ESP to improve the efficiency. The performance monitoring has also
been conducted at Unit VI of Koradi Thermal Power Station (MSEB), where bag filter
has been retrofitted within the existing ESP shell. The name of the selected units where
performance evaluations were carried out is given below.
1. 67.5 MW unit at Rajghat Power Station, DVB, Delhi
2. 210 MW unit at Badarpur Power Station, NTPC, Delhi
3. 250 MW unit at Budge Budge Power Station, CESC, Calcutta
4. 500 MW unit at Chandrapur Super Thermal Power Station, MSEB, Chandrapur
5. Unit V- 60 MW at Indraprastha Power Station, DVB, Delhi
6. Unit VI – 210 MW at Koradi Power Station, MSEB, Koradi

Performance Study No. 1 - Rajghat Power Station, Delhi Vidyut Board,
Delhi
The technical details of the ESP attached to boiler units of Rajghat Power Station
and the fundamental problems faced in the ESP are given below.

ESP Design (Unit I & II)
1. Electrode arrangement – Spiral emitting electrode and plate collecting
electrode
2. Electric power supply – Multipulse energisation
3. Number of series field – Two paths, 5 series
4. Specific collection area – 206.4 m2/m3/s
5. Gas velocity inside ESP– 0.56 m/s
6. Plate configuration – 31 rows, 9 plates in each row
7. Treatment time (time taken by the flue gas to pass through the length of
the collecting electrode zone)- 31 seconds
8. High tension sections (per 1000m3 of gas flow rate) – Not known
9. Migration velocity of particles (designed)- Not known
10. Resistivity of Particles- Not known
11. Collecting electrode spacing (mm)- 300 mm
12. Electrode Rapping - Mechanical hammer rappers
13. Corona electrode rapping mechanism- Available
14. Gas Flow Distribution means to achieve uniform/symmetrical flow inside
the ESP– Deflector divertor plates, primary and secondary screens at inlet

Most probable reasons stated for under performance of ESP
Fundamental
problems
High resistivity
particles:

•  Re-entrainment of

            collected particles

•  Poor gas flow

• Gas velocity too high                                        

Mechanical problems:

•  Poor electrode alignment

•  Vibrating or swinging

corona wires

•  Distorted collecting plates

•  Excessive dust deposits

on collecting electrodes
and corona electrodes

•  Air leakage into hoppers,

shells or gas ducts

•  Formation of dust

mountain in ESP inlet and
outlet ducts

Operational problems:

•          1.Full or overflow hoppers

1.           2/ Shorted corona

sections
          3 ESP overloaded by
excessive gas flow
          4 Process upsets (poor
combustion, steam
leaks, etc.)
          5. Rectifier sets or controls
poorly adjusted
6.Poor adjustment of
rapper intensity /
frequency.

ESP Design (Unit I & II)
1. Electrode arrangement – Spiral emitting electrode and plate collecting
electrode
2. Electric power supply – Multipulse energisation
3. Number of series field – Two paths, 5 series
4. Specific collection area – 206.4 m2/m3/s
5. Gas velocity inside ESP– 0.56 m/s
6. Plate configuration – 31 rows, 9 plates in each row
7. Treatment time (time taken by the flue gas to pass through the length of
the collecting electrode zone)- 31 seconds
8. High tension sections (per 1000m3 of gas flow rate) – Not known
9. Migration velocity of particles (designed)- Not known
10. Resistivity of Particles- Not known
11. Collecting electrode spacing (mm)- 300 mm
12. Electrode Rapping - Mechanical hammer rappers
13. Corona electrode rapping mechanism- Available
14. Gas Flow Distribution means to achieve uniform/symmetrical flow inside
the ESP– Deflector divertor plates, primary and secondary screens at inlet

BASIC ELECTRICAL DESIGN

NOW ENQUIRY : get the latest info.

We are offering electrostatic precipitator spares. All kind of electrostatic precipitator (esp) spares are available with quality assured. Some are listed below

• emitting / discharge electrode
• collecting electrode
• shaft insulator
• support insulator
• pin wheel
• outer arm - special type hammers
• inner arm
• plain bearing
• emitting electrode frame
• emitting electrode suspension system
• collecting electrode suspension system

HOME    ELECTROSTATIC   PRECIPITATOR

               

           

Lodge Cottrell

HOME    ELECTROSTATIC   PRECIPITATOR

AIR POLLUTION CONTROL

HOME    ELECTROSTATIC   PRECIPITATOR

NOW ENQUIRY | Get the latest info.!

We are offering electrostatic precipitator spares. All kind of electrostatic precipitator (esp) spares are available with quality assured. Some are listed below

• emitting / discharge electrode
• collecting electrode
• shaft insulator
• support insulator
• pin wheel
• outer arm - special type hammers
• inner arm
• plain bearing
• emitting electrode frame
• emitting electrode suspension system
• collecting electrode suspension system

A Global Leader in Air Pollution Control

-People & Technology keeping our planet sustainable.....

The pioneer in the field and have been  developing technologies to protect our surroundings. This now reaching out to wider markets and competing against global peers and establishing themselves in Korea,China,India,Taiwan,Vietnam, Britain & America

Products-

• Electrostatic recipitators(Dry & Wet Type)
• De- Tar Electrostatic Precipitator
• Fabric Filters(Pulse Jet,Reverse Air Fabric Filters & Ceramic Filters)
• Wet Scrubber & Multi Cyclone
• Flue Gas conditioning Systems(NH3 &

  

  
  

  
  

  
  

  
  

  Execution of R & M work of ESP

  
  

  

  
  

   SO3 
• Systems(FGD) 
• Injection)
• Flue Gas Desulphurization 

Excavation work start  near the existing ESP : 

Despite of  the hard rock in soil ,the excavation work continues with the poclain with the hydraulic mechanism. A big effective force breaks the hard rock.

The constraints of Water Pipe line of 800mm dia through out the ESP area. Most  important was the safe working on all underground possibilities of live cables and running water pipe line,ash trench area ,cable trench etc.

Damper location on the outlet of ESP

 The Duct near the ID Fan  with insulation cover removed  under plant maintenance

THE TEAM OF ENGINEERS, PROJECT MANAGERS AND SITE PERSONNEL OF WORLD RENOWNED COMPANY ,INSTALLING ESP UNDER R & M WORK ELECTROSTATIC PRECIPITATOR IN THERMAL POWER STATION. 

THE SAFETY MEETING BEFORE START OF ERECTION WORK. THE COMPANY IS VERY MUCH RESPONSIBLE FOR THE VARIOUS SAFETY MEASURES.

DE ASSEMBLY ON GROUND , UTMOST CARE FOR THE ALIGNMENT OF DISCHARGE  ELECTRODES:

 HOME    ELECTROSTATIC   PRECIPITATOR    NOW ENQUIRY | Get the latest info.!