Burning Systems Prezentation

BURNING SYSTEMS PREZENTATION

TOTEMA ENGINEERING JSC


Let us to present you some of our biggest projects for Coal burner systems accomplished by TOTEMA Engineering JSC in the recent 7-8 years, as follows:

1. In 2004 – 2009 for rehabilitation of ENEL Maritsa East 3 TPP, we designed, manufactured and commissioned Coal burners and Oil burners for all 4 Units /227 MW each/. Power plant’s coal base are high ballast lignite (Wr = 50 – 56 %, Ar = 12 – 22 %, LHV = 1400 – 1700 kcal/kg) from Maritsa East mines. Boilers are made in Russia, with natural circulation, dry slag removal and 8 Fan Mills with Classifier.

TOTEMA Engineering burners are direct flow, on three levels – two main levels and one vapor; centrifugal dust concentrator distributes solid phase along burner’s height, enriching dust-gas mixture. They are located upon angular tangential scheme to the axis of the furnace. Burner’s construction provides very well compensation of temperature extensions, gas-tightness and safe work.

First three Boilers were put in operation without any problems on burning systems. All design and guarantee parameters concerning the slagging, stability, economy of the burning process and NOx emissions were achieved. The fourth Unit started with occasional slagging, but after tests and analysis of the situation some manufacturing and erection faults were detected and eliminated, as a result the Unit has continued normal operation as other ones.

TOTEMA Engineering was realized also a project for reconstruction of dust-pulverizing system, in order to improve its gas-tightening and safety and also a new classifier – inertia type, with very good regulation of the dust fineness, a successful design of our company. As a result of the improvements and reduced resistance of the tract, Mill’s capacity increased with more than 15%; these ensured expansion of the Units power from 210 MW acc. to the project, to 227 MW.



2. In As Pontes TPP, Spain are installed 4 Units х 350 MW, based on local lignite (Wr 40 %, Ar 22 %, LHV 1700 kcal/kg). Boilers are tower type, natural circulation, dry slag removal, with Burn-out Grate, equipped with 6 Fan Mills without classifier, with pre-beater hammer part. Designed burners are multi-levels, with louver dust distributor, located to the furnace upon angular tangential scheme.

2.1. First reconstruction of the Coal Burners was made by our design to eliminate the slagging; further the results were very good.

2.2. In order to reduce the emissions of Sulfur Oxides, Power Plant starts to burn mixture of local lignite and non-sulfur Indonesian sub-bituminous coals; sustained parameters of the mixture was – Wr 35 %, Ar 21 %, LHV 2540 kcal/kg. For the new coal base TOTEMA Engineering elaborated projects for new coal burners and adaptation of the Mills (new Beater Wheel, modification of the casing and the door), which were implemented at all four Units during 1993 – 1996.

Burners upon this project are direct flow on 4 levels – 3 main and one vapor, with centrifugal dust concentrator, located upon angular tangential scheme. Reconstruction were very successful, requirements for non-slag regime were met, as well as the efficiency of the burning process.

2.3. Since 2004 the Power Plant began work with Indonesian sub-bituminous coals, which have no ash and sulfur: Wr = 24 – 27 %, Ar = 0,9 – 4 %, LHV = 4500 – 4912 kcal/kg. For this coal base we elaborated a project for new low NOX emissions burners, new Mills and Slag-removal system. Having in mind coal quality, the Burn-out Grate was removed and for the Mills were foreseen classifier; beater-part remains.

Burners are 4-levels, with OFA above each Burner, Centrifugal dust concentrator, which in this case has a predictable dust distributor purpose. All design and guarantee parameters of the Mills and Burners and for productivity, NOX emissions and efficiency of the burning process were met.







Our specialists have developed also many other different projects of Burning systems (Burners and Mills) for several Power Plants working with lignite and brown coals, located in Romania, Slovakia and Bulgaria. All projects were realized and the results were very good. In these projects were implemented our company conception regarding burning process, depending of the design, burning base and capacity of the boiler. For the M ills with classifier we apply our successful company design of inertia adjustable classifier with low resistance.

Some of these power plants and scope of our projects are:

3. Novaky TPP, Slovakia – 2 Units х 110 MW – new brown coal burners, with louver dust distributor and reconstruction of Fan Mills in order to increase its capacity; this reconstruction includes new beater wheel, casing and classifier.

4. Timishoara TPP, Romania – for one boiler 110 Gcal/h working on lignite was made a project of new burners and Fan Mills with classifier.

5. Krayova TPP, Romania – boiler 370 t/h working on lignite: new Burners – three-floors, with centrifugal dust concentrator and reconstruction of Fan Mills, comprising new beater wheel, case, door and classifier.

6. Rovinary TPP, Romania – 2 Units х 210 MW working on lignite: new Burners – on 3-floors, with centrifugal dust concentrator; reconstruction of the Mills to increase the productivity, including new working wheel, shell, gate and separator.

7. Bobov dol TPP, Bulgaria – for 3 Units х

210 MW working on brown coals, TOTEMA Engineering has designed new Burners with new Mill’s beater wheel.



REFERENCES

No. ObjectCoal quality as received

%, kcal/kg

Burner

charakteristic

Achieved NOx

emissions, mg/Nm3

Furnace air reakages, %

Achieved CO emissions, mg/Nm3

1. Bulgaria

Enel-Maritsa East 3 TPP

4 x 227 MW

2005 – 2009

Range Guarantee

Wr = 53 – 56 55,5

Ar = 12 – 22 15

Nr = 0,2 – 0,4 0,33

LHV = 1400 – 1700 1420

Without OFA

192 – 230

(Guarantee – 200)4,2 30 ÷ 71

2. Spain

As Pontes TPP

4 x 350 MW

2004 – 2008

Range Guarantee

Wr = 24 – 27 26,34

Ar = 0,9 – 4 2,84

Nr = 0,6 – 0,8 0,72

LHV = 4500 – 4912 4692

With OFA

330 – 350

(Guarantee – 400)0 -


Activities of the experts Totema Engineering JSC

Project Country Output Scope of engineering

CH Plant Sliven Bulgaria 50 MWProject for reducing of the Heat power of Boiler 1B160/100 from 112 to 50 MW. New Burner Systems.

AES Galabovo TPP Bulgaria 2 x 330 MW Engineering, supply and commissioning of Slag removal System.

Enel Maritsa East 3 TPP Bulgaria 4 x 210 MW

Turn-key construction project for Gypsum Dewatering and Transportation System.

CH Plant Republika Bulgaria 300 t/h

Engineering, supply, commissioning and tests of Coal Crusher and Screening Installation.

As Pontes TPP Spain 4 x 350 MWEngineering, commissioning and tests of new low NOx Coal Burner Systems.

As Pontes TPP Spain 4 x 350 MW Engineering, commissioning and tests of new Fan Mills.

As Pontes TPP Spain 4 x 350 MW Engineering, commissioning and tests of Slag Removal System.

Enel Maritsa East 3 TPP Spain 4 x 227 MW

Engineering, supply, commissioning and tests of new low NOx Coal Burner Systems.


Engineering, supply, commissioning and tests of Pulverizing Systems.


Engineering, supply, commissioning and tests of Oil Burner Systems.

Enel Maritsa East 3 TPP Bulgaria 4 x 227 MW Detail engineering of two FGD Installations.

Bobol Dol TPP Bulgaria 1 500 t/hCoal Handling - Engineering, supply, commissioning and tests of Roller screen 30.

Deven TPP Bulgaria 3 x 220 t/hEngineering, supply, commissioning and tests of Ignition Oil Burner Systems.



Maritsa 3 TPP– Dimitrovgrad

Bulgaria 1 x 150 MW Engineering, supply, commissioning and tests of Ignition Oil Burner Systems.

Maritsa East 2 TPP Bulgaria 4 x 210 MW Detail engineering of two FGD Installations.

Maritsa East 2 TPP Bulgaria 4 x 210 MW Basic and detail engineering of the Container Dumpers for Dust-free Unloading and supply of limestone.

Maritsa East 2 TPP Bulgaria 4 x 210 MWEngineering, supply and commissioning of the Instrumentation for Automatic Control of the Dust-free Unloading and supply of limestone.

As Pontes TPP Spain3 000 t/h3 000 t/h

Coal Handling - Engineering, supply, commissioning and tests of:- Roller screen 160- Disk crusher 1200/160.

As Pontes TPP Spain 4 х 350 MW Engineering, commissioning and tests of new Coal Burner Systems.

As Pontes TPP Spain 4 х 350 MW Engineering of Fan Mills modifications, commissioning and tests

Maritsa East 3 TPP Bulgaria 1 600 t/h Coal Handling - Engineering, commissioning and tests of Roller screen 40

Maritsa East 3 TPP Bulgaria 1 600 t/hCoal Handling - Engineering, commissioning and tests of Hammer crusher 0 - 35

Maritsa East 3 TPP Bulgaria 3 000 t/h3 000 t/h

Coal Handling - Engineering, commissioning and tests of:- Roller screen 160- Disk crusher 1200/160



Hagenwerder TPP Germany Engineering of Mill classifier. Modification of the Mill inlet.

Novaky TPP Slovakia 2 x 110 MW Engineering of Coal Burner Systems.

Novaky TPP Slovakia 2 x 110 MW Engineering of Fan Mills modifications.

Timishoara TPP Romania 1 x 110 Gcal/h Engineering of Coal Burner Systems.

Timishoara TPP Romania 1 x 110 Gcal/h Engineering of Fan Mills.

Trakia TPP Bulgaria 600 t/h Coal Handling – Engineering of Roller screen 40.

Trakia TPP Bulgaria 600 t/h Coal Handling – Engineering of Hammer crusher 0 – 25.

Trakia TPP Bulgaria 600 t/h600 t/h

Coal Handling – Engineering of:- Roller screen 220.- Disk crusher 1200/200

Maritsa East 2 TPP Bulgaria 2 400 t/h Coal Handling - Engineering, commissioning and tests of Roller screen 40.

Maritsa East 2 TPP Bulgaria 2 400 t/h Coal Handling - Engineering, commissioning and tests of Hammer crusher 0 – 35.

Maritsa East 2 TPP Bulgaria 2 400 t/h Coal Handling - Engineering, commissioning and tests of Roller screen with tramp iron removal 60.

Maritsa East 2 TPP Bulgaria 3 000 t/h3 000 t/h

Coal Handling - Engineering, commissioning and tests of:- Roller screen 220- Disk crusher 1200/200



Rovinary TPP Romania 2 x 210 MW Engineering of new Coal Burner Systems.

Rovinary TPP Romania 2 x 210 MW Engineering of Fan Mills modifications – beater wheels, casings, doors, classifiers, couplings.

Krayova TPP Romania 370 t/h Engineering of Coal Burner Systems.

Krayova TPP Romania 370 t/h Engineering of Fan Mills modifications.

Bobov Dol TPP Bulgaria 4 x 210 MW Engineering of new Coal Burner Systems.

Bobov Dol TPP Bulgaria 4 x 210 MW Engineering of Fan Mills modifications.

Republica TPP Bulgaria 1 х 220 t/h Engineering of new Coal Burner Systems.

Republica TPP Bulgaria 1 х 220 t/h Engineering of Fan Mills modifications.

Maritsa East 2 TPP Bulgaria 4 x 150 MW Engineering of new Coal Burner Systems.

Maritsa East 2 TPP Bulgaria 4 x 150 MW Engineering of Fan Mills modifications.

Maritsa East 2 TPP Bulgaria 4 x 150 MW Coal Handling - Engineering of Dosers and Feeders.

Aerodynamic simulation of the economizer I stage for the refurbished boilers of As Pontes TPP- Spain.

Study of the possibilities of stable and efficient combustion of high-ash coal in boiler No. 5 in Republica TPP, Pernik.



Feasibility study for the conversion of the boilers of As Pontes TPP, Spain for a combustion of high calorific -value sub-bituminous coal

Study and proposal for the modification of the air heaters on units 210 MW at the complex Maritsa - East 2 TPP.

Study for the rehabilitation of the burner systems on unit 315 MW at Isalnitsa TPP

Recommendations for suitable class of preliminary crushing and technology for homogenization for the coal of Maritsa - East 1 TPP.

Selection of the combustion technology, the single capacity of the aggregates and optimum capacity of Maritsa -East 1 TPP.

Recommendations to increase the energy efficiency in the coal output, the electric power and the heat supply as part of the National Program for Energy Efficiency.

Expert evaluation of the alternative to finalize the erection of Belene NPP and a recommendation of an alternative solution with minimum costs, combined with an increase of the energy independence of the country.

Development and restructuring of the energy sector of the Republic of Bulgaria up to 2010.

Development of Maritsa - East Mines, together with the main consumers of Maritsa - East lignites.

Study of the deficiency of electric power in South-East Europe in perspective until 2010.

Energy strategy of the Republic of Bulgaria until 2020, as a leading company, in a consortium with Energoproekt, Minproekt, the Bulgarian Academy of Sciences, Energokybernetika.

Study for rehabilitation of Varna TPP, Bobov Dol TPP and Rousse TPP, as a subcontractor to Bechtel - USA

Documents

Burning Systems Prezentation