INDURE has been executing multi-disciplinary projects involving large quantity of steel structural works with consistently high quality and adherence to milestones in a safe environment as per the customer requirements. INDURE has successfully executed many structural steel fabrication and erection works for power plants including 2x525 MW thermal power project involving supply and erection of 27,000 metric tonnes of steel.

Steel Structures for Power Plants

INDURE can design, engineer, manufacture, supply and erect steel structures for TG hall building, boiler structures, coal handling plant ,coal bunkers, ash handling plants, ESP structures, water treatment plant and other large buildings.

INDURE’s own fabrication facility at Sikandrabad in Uttar Pradesh State spread over 20 acres of land is equipped with all the facilities to handle large fabrication works. Use of high quality design and engineering tools along with latest cutting and machining tools facilitates delivery of heavy steel structures of high quality to customers in a short span at a cost competitive price. INDURE’s factory is equipped with state of the art CNC cutting and welding facilities to fabricate & supply structures of upto 1000 tons per month.

Our integrated operations encompassing design and engineering, state of the art manufacturing facility equipped with CNC cutting machines ensure high precision and an experienced erection team ensures supply and erection of large quantities of steel structures in optimum time.

INDURE’s specialized team has rich experience and expertise to manage steel structural works for TG hall building, coal mill / bunker, coal / ash handling, silos, steel flues and other structures of large power plants.

For reference list of steel structural works, click here

Dry/Semi Dry Flue Gas Desulphurization System

Indure has immense experience and know how having supplied ash handling systems for over 78,000 MW including systems for large units of size 660 MW and 800 MW. Indure has further enhanced its portfolio for flue gas desulphurization systems by entering into an alliance with RAFAKO S.A, Poland to offer cost effective and advanced solutions for Dry/Semi Dry flue gas desulphurization systems to effectively control pollution from SOx emissions.

RAFAKO is one of the biggest Polish companies dealing with the design, manufacturing, construction and maintenance of machinery and power equipment. RAFAKO was establihed in year 1949 and is one of the key manufacturers from Europe for supercritical boilers, ESPs and FGD systems. RAFAKO has delivered more than 500 boilers all over the world including India with a total capacity of around 40,000 MW.

Semi dry/dry Flue Gas Desulphurization technology is cost effective especially for small to medium size power plant units and also very much suitable for projects with limited water availability.

The Semi-dry desulphurization technology being offered by Indure along with RAFAKO is based on the pneumatic reactor and the flue gas desulfurization process is usually carried out in two stages.

In the first stage, pulverized sorbent is injected into the area with temperatures which are optimal for calcination and bonding of SO₂ in boiler furnace chamber. Later, in the second stage, flue gas desulfurization is further carried out in flue gas scrubber located between flue gas outlet from the boiler and electrostatic precipitator flue gas inlet.Within the scrubber, due to the spraying of flue gas with water, the particles of CaO covered with a layer of CaSO₄ or CaSO₃ develop cracks which enable the bonding of SO₂ by CaO. The quantity of supplied water is adjusted so as to enable its complete evaporation. Temperature of flue gas upstream of electrostatic precipitator is reduced to the values which are safe from H2SO₄ condensation point of view (below dew point).

The Semi dry process achieves better flue gas desulfurization efficiency as compared to Dry process in which sorbents (hydrated lime /quicklime/dolomite) are blown into the boiler furnace above the flame area.

Practically achievable flue gas desulfurization efficiency in Semi –Dry process amounts to 60%- 85% range, a level, which in case of power plants firing low combustible Sulphur coal - gives the possibility of meeting acceptable SO₂ emission values. In addition the water consumption in the process is much lower as compared to wet limestone based flue gas desulphurization system.