Bubbling Fluidized-Bed Boilers

Bubbling Fluidized-Bed (BFB) Boilers

B&W’s BFB boilers are designed to allow a wide range of fuels to be burned, separately or in combination. The ability to utilize various fuel sources and types provides owners with the flexibility to take advantage of opportunity fuels and control fuel costs.

B&W’s advantage

B&W’s BFB boiler is designed with reliability in mind. Several features combine to provide low maintenance costs, high availability and long-term reliability:

  • An open bottom design permits easy removal of oversized or foreign material.
  • A water-cooled, gas-tight lower furnace eliminates the potential for gas leaks caused from refractory damage.
  • Bottom-supported hoppers remove load from the boiler, reduce capital requirements, and reduce potential mechanical stresses between water-cooled and non-cooled components.

B&W Top-Supported BFB Boiler

B&W Bottom-Supported BFB Boiler

Incorporated in our design are these features to reduce maintenance costs:

  • No wear parts
  • No moving parts
  • No water-cooled screws or beams
  • No cinder re-injection system
  • Long-lasting bubble caps

Specifications

Capacity:

  • Bottom-supported: Up to 225,000 lb/h (28.4 kg/s)
  • Top-supported: From 225,000 to 1,000,000 lb/h (28.4 to 126 kg/s)

Steam pressure: To 2600 psig (17.9 MPa)

Steam temperature: To 1000F (538C)

Nuevos desarrollos

Demostramos constantemente la capacidad de ejecutar con éxito soluciones innovadoras para nuestros clientes, desde nuevos equipos hasta grandes y complejos proyectos integrales de ingeniería y construcción.

Actualizaciones y modernizaciones

Modificar, mejorar y brindar mantenimiento a los equipos existentes son consideraciones esenciales para la viabilidad y la rentabilidad a largo plazo de todas las operaciones.

Repuestos/servicios

En todo el mundo se encuentra disponible una amplia red de centros regionales de servicios, ingenieros para servicios in situ y personal de soporte técnico que proporcionan servicios personalizados y soluciones postventas ante su requerimiento.

Project / Case Feature Items

University of Missouri
Missouri, USA

B&W designed, engineered and supplied a biomass-fueled bubbling fluidized bed (BFB) boiler to replace the University of Missouri’s existing coal-fired boiler, and to provide the university campus with electricity and steam for heating and other uses. Designed to burn chipped hardwoods and various local opportunity fuels near the university campus, the boiler will produce lower sulfur dioxide emissions and less ash than a typical coal-fired boiler.

Snowflake White Mountain Power – Arizona, EE. UU.

La caldera cerrada se convirtió en lecho fluidizado burbujeante que quema biomasa para cumplir con los objetivos renovables y un cronograma apretado

Mill – Oregón, EE. UU.

Tecnología BFB con base abierta diseñada para la combustión de biomasa mejora la capacidad y el control de emisiones

Paper Mill - Estados Unidos

La conversión de la caldera de recuperación a BFB es una solución económica y ambiental para extender la vida útil de los activos de la planta