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CHIMNEY

A Boiler Chimney, also known as a stack, is an engineered vertical structure designed to safely discharge flue gases from the boiler combustion chamber into the atmosphere. It plays a crucial role in maintaining draft, managing emissions, and ensuring compliance with air quality regulations. PP Boilers offers custom-designed chimneys built for durability, optimal plume dispersion, and structural stability in accordance with statutory standards.

Compliance

IBR-certified and ISO 9001:2015 compliant

Pressure Parts

Operating pressure up to 120 kg/cm²

Fans (FD, ID, PA)

Flow rates up to 500,000 m³/hr

Temperature

Up to 540°C (for superheater coils)

Technical Specifications

  • Height: 30 to 80 meters (or as per CPCB dispersion model based on emission load)
  • Diameter: Customized based on flue gas volume and velocity
  • Material of Construction (MOC): Mild steel (MS), RCC (for high-rise), or FRP lining (for corrosion resistance)
  • Design Standards: IS 6533 Part 1 & 2, IBR, ASME (where applicable)
  • Lining Options: Refractory/ceramic lining for thermal insulation and acid resistance in high-temperature/acidic environments
  • Accessories: Provided with ladder, safety cage, lightning arrestor, aviation obstruction lights, and sampling ports

Key Features

  • Flue Gas Discharge: Safely channels exhaust gases such as CO₂, SO₂, NOx, and particulates to a suitable height
  • Draft Management: Supports natural or induced draft systems by maintaining negative pressure in the combustion zone
  • Emission Control Compliance: Ensures proper dispersion of pollutants to reduce ground-level concentrations and meet CPCB/MoEF norms

 

Silent Features

  • Customized Design: Tailored for boiler capacity, flue gas volume, and site conditions
  • Corrosion Protection: Optional internal or external coating for long-term resistance to acidic gases and weathering
  • Thermal Stability: Engineered to handle flue gas temperatures up to 400°C
  • Self-Supporting or Guy-Wire Supported: Structural configurations based on height and wind load analysis
  • Integrated with Pollution Control Systems: Connects seamlessly with ESPs, wet scrubbers, and bag filters
  • Durability: Built to withstand wind loads, seismic activity, and temperature variations over decades
  • Emission Monitoring Ready: Ports available for installation of online stack monitoring instruments (CEMS).

 

 

Advantages

  • Significant reduction in air pollutants.
  • Improved compliance with local and international regulations.
  • Enhanced operational efficiency through optimized processes.
  • Long-term cost savings by reducing fines and penalties.
  • Increased public trust and corporate reputation.
  • Customizable solutions for specific industrial applications.
  • Low maintenance requirements for certain systems.
  • Potential for energy recovery in some designs.
  • Contribution to a healthier work environment.
  • Support for sustainable development initiatives.

Applications

  • Power generation plants.
  • Cement manufacturing.
  • Chemical processing.
  • Metal production and processing.
  • Food and beverage industry.
  • Pharmaceutical manufacturing.
  • Waste incineration facilities.
  • Mining and mineral processing.
  • Pulp and paper industry.
  • Textile manufacturing.