Precalciner - Cement Equipment In Cement Plant

Today’s cement-making systems rely heavily on preheaters and precalciners for thermal processing. They are built to help plants use less energy, consume little fuel, and become more productive in total. Hot exhaust gases released by the rotary kiln are used by the preheater to heat the raw meal before it enters the kiln, lowering energy use during the last burning phase. At the same time, pre-calcination, which happens in a separate chamber, aims to finish about 60–70% of the heating process, reducing the strain on the rotary kiln.

Precalciner

Our engineers design preheater and pre-calciner systems at Technomart India to ensure they are both energy-efficient and stable in performance. Preheaters at our plant are set up in stages as cyclones to get the best heat from fuel and our pre-calciners come with modern and advanced burners that allow them to operate with different fuels. These systems cut emissions, help use different fuels, maintain good clinker quality, and guarantee smooth and stable operation wherever their capacity is used. Advanced construction, an integrated design, and automated controls in our solutions support the sustainability, reliability, and cost-effectiveness of cement manufacturers.

  

Features of Preheaters & Pre calciners

  • Multi-Stage Preheater Tower Design – With the help of multi-cyclone stages, Tehnomart’s preheaters transfer more heat from the gas to the raw feed, so excessive fuel requirements are not needed.
  • High-Efficiency Calcination Chamber – Precalcination outside the rotary kiln, using a separate burner to heat clinker externally to about 850°C–900°C, helps reaction rates in the rotary kiln and raises clinker production.
  • Optimized Gas-Solid Flow Geometry – It allows fuel, raw feed, and combustion air to blend correctly, supports a steady temperature, and helps decrease emissions of CO and NOx.
  • Separate Line Calciners for Fuel Flexibility – Instead of mixing fuels, our systems can include a separate line calciner so that RDF, biomass, or petcoke can be burned freely on their own, helping to reduce expenses and meet environmental requirements.
  • Wear-Resistant and Modular Construction – Made from steel that withstands friction and is coated on the inside with high-temperature linings, the preheater and pre-calciner are both strong and simple to maintain. Factory-built components make it possible to assemble and connect the equipment faster at the construction site.

Specifications of Precalciner Systems

Parameter Value
Preheater Type Single-Stage to Five-Stage Cyclone Tower
Precalciner Capacity 100 TPD to 1000+ TPD
Calcination Temperature 850°C to 950°C
Material Retention Time 10 to 25 Seconds
Fuel Types Supported Coal, Petcoke, Biomass, RDF, Natural Gas
Construction Material Carbon Steel / Refractory-Lined
Burner Type Multi-Fuel High-Efficiency Burner
Control System PLC/SCADA Based Monitoring & Control
Emission Control Integrated with Bag Filter / ESP

Applications of Preheaters & Pre calciners

  • Integrated Cement Plants
  • Energy-Efficient Clinker Production Units
  • Alternative Fuel Combustion Systems
  • Emission-Optimized Cement Manufacturing
  • Greenfield and Brownfield Kiln Line Upgrades
  • High-Capacity Cement Processing Plants
  • Waste-Derived Fuel (WDF) Integration Projects
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