Power Boiler Ash Handling

SKU: C-768Duration: 11 Minutes

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Course Details

Specs

Training Time: 11 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English, Portuguese, Polish, Russian

The purpose of a power boiler is to create steam by applying heat energy to water. Many power boilers burn solid fuels, such as wood residue (biomass) and coal, which produce large amounts of ash that must be handled and disposed of. Each solid fuel boiler has a specially designed system to safely remove, transport and dispose of the ash generated during operation of the boiler. This module describes how ash is generated and the typical components used to remove ash in a power boiler.

Learning Objectives

  • Identify and describe the safety hazards and guidelines associated with power boiler ash
  • Describe how ash is generated in a power boiler
  • Identify and describe the two classes of boiler ash
  • Describe the composition of coal and biomass ash
  • Identify and describe typical ash handling components
  • Identify and describe the two methods for handling ash
  • Describe environmental hazards and prevention methods for ash handling systems

Key Questions

The following key questions are answered in this module:

How is ash generated in a power boiler?
Many power boilers burn solid fuels, such as wood residue (biomass) and coal, which produce large amounts of ash.

What are the two classes of boiler ash?
Boiler ash is generated in two different forms, bottom ash and fly ash.

What is the composition of coal ash?
Coal ash consists of varying amounts of silica, alumina, iron oxide, calcium and unburned carbon. The coal ash could contain trace amounts of heavy metals and mercury.

What is the composition of biomass ash?
Biomass ash consists of varying amounts of phosphorus, potassium, calcium and unburned carbon. Biomass ash could contain trace amounts of heavy metals and dioxin.

What are two methods for handling ash?
The wet method and the dry method.

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

The purpose of a power boiler is to create steam by applying heat energy to water. Many power boilers burn solid fuels such as wood residue or biomass and coal, which produce large amounts of ash that must be handled and disposed of. Each solid fuel boiler has a specially designed system to safely remove, transport, and dispose of the ash generated during operation of the boiler. Boiler ash is generated in two different forms: bottom ash and fly ash. And there are two different methods of handling the ash: a wet and dry method.
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