B&W Products

Pulverizer Upgrades

A wide range of modifications and upgrades are available for your B&W Roll Wheel™ roller-type or E/EL ball-and-race pulverizers. These new components and technologies can be retrofitted onto existing pulverizers to provide you with the latest designs and operating benefits which can increase availability and reliability and reduce maintenance.

B&W has extensive experience in grinding all types and blends of coals. All retrofit parts and materials are engineered and manufactured to the original specifications to ensure proper fit and performance.

B&W Roll Wheel Pulverizers

 

B&W Roll Wheel Pulverizers

Roll Wheel Pulverizer

Available upgrades:

  • Hi-spin stationary classifier
  • Redesigned classifier discharge assembly
  • DSVS® rotating classifier
  • Rotating throat improvements
  • Wearesistor® asymmetric, asymmetric low-profile and asymmetric wide-profile tires
  • Segmented yoke air seal carrier and replaceable labyrinth segments
  • Auto-Spring™ wheel loading system
  • Heavy-duty coil springs
  • Primary air chamber access door
  • Cera-VAM® ceramic erosion protection
  • Wear plate gap protective covers (awnings)

Gearbox Rebuilds and Exchanges

Gear Box

To maintain peak pulverizer operating conditions, systematic maintenance procedures are critical. In particular, gear drives can benefit from a comprehensive remanufacturing program to maintain high availability and optimize service life. We offer many services to support the operation of gear drive assemblies, including:

  • OEM replacement parts
  • Equipment upgrades
  • Remanufacturing services

After conducting in-depth inspections, a detailed report is provided that specifies the disposition of each gear drive component – parts are designated for replacement, refurbishment or reuse.

B&W can customize a gear drive remanufacturing program that includes all similar mills within a power generation system. We also offer a gear drive exchange program to meet the needs of customers that do not have excel mill capacity.

Roll Wheel Assembly

Roll Wheel Assembly

High dynamic loading of pulverizer components in an extremely abrasive environment will eventually limit the life of a roll wheel assembly.

Because operating conditions vary, there is no exact formula for calculating the service life of a roll wheel assembly. A comprehensive rebuild program is key to maintaining availability and maximizing the service life. After a thorough inspection process, each roll wheel assembly is returned to current design specifications.

We also offer a roll wheel assembly exchange program. Our in-stock roll wheel assemblies are completely re-manufactured and ready for immediate shipment.

B&W E/EL Pulverizers

 

B&W E/EL Pulverizers

E/EL Pulverizers

Available upgrades:

  • E to EL conversions
  • High-spin stationary classifier
  • Raw coal diverter chute
  • Bolt-through housing units
  • Two-fluted EL pulverizer housing unit
  • High temperature bottom ring with heat shield
  • High temperature throat plates
  • Oil cooler
  • Main shaft air seal housing with replaceable seal rings
  • Spring bolt assemblies
  • Pneumatically operated pyrites gate
  • Grinding zone access door
  • Cera-VAM® ceramic erosion protection
  • DSVS® rotating classifier