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Language: English French Polish Portuguese Russian
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Recovery Series (Details)Includes 8 courses for $499/year. Pulping Library (Details)Includes 72 courses for $1,499/year.
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Training Time: 20 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English, Portuguese, French, Polish, Russian
Kraft recovery boilers are an important part of the industrial processes used to efficiently convert wood chips into paper. The kraft recovery boiler produces steam that is used to generate electricity and for heating purposes in the kraft processes; as well as recovers the valuable cooking chemicals used in the digester. The kraft recovery boiler is made up of two main sections, the fireside, or furnace, where the black liquor is burned and the heat transfer section where steam is created. This module describes the purpose and operation of a kraft recovery boiler in the kraft pulping process.
Kraft Recovery Boilers - Fireside
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Kraft Recovery Boilers - Liquor System
Kraft Recovery Boilers - Precipitator
Kraft Recovery Boilers - Sootblowers
Kraft Recovery Boilers - Waterside
The following key questions are answered in this module:
What is the primary fuel for a kraft recovery boiler?Black liquor is the primary fuel for a kraft recovery boiler.
What happens to the organic material in the black liquor?The organic material in black liquor burns in the boiler and creates heat.
What happens to the inorganic material in the black liquor?The inorganic material in black liquor falls to the bottom of the boiler to create a bed of smelt.
What are the names of the three main sections of heat recovery tubes in the boiler?The three main heat recovery sections in the boiler are the superheater, the generating bank and the economizer.
What can happen if water mixes with smelt in the bottom of the boiler?If water and smelt mix in the bottom of the boiler there will be a violent explosion.
Below is a transcript of the video sample provided for this module:
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