Yankee Dryer Safety

SKU: C-474Duration: 16 Minutes

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Language:  English

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Course Details

Specs

Training Time: 16 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

This course begins with some safety guidelines related to Yankee dryers like those installed on tissue machines. It also describes some safety guidelines related to starting up, warming up, cooling down, and shutting down a Yankee dryer. The hazards associated with working around doctor blades and high pressure steam are discussed, as well as the importance of keeping records related to maintenance, repairs, and alterations.

Learning Objectives

  • Describe Yankee dryer operating conditions
  • List general Yankee dryer safety guidelines
  • Describe the interaction between Yankee crown, shell thickness, and maximum allowable working pressure (MAWP)
  • List best practices for maintenance, repairs, and alterations
  • Describe the importance of recordkeeping

Key Questions

The following key questions are answered in this module:

How often is Yankee dryer safety training required?
Mill personnel working around Yankee dryers are required to receive annual safety training.

What guidelines should be followed to prevent damage to the Yankee dryer?
Good housekeeping prevents dust and oil buildup which can lead to fires. Water should never be sprayed directly on the dryer because it causes thermal stress that can lead to a catastrophic failure. The yankee dryer can be easily damaged by impacts, so the Yankee surface should be protected.

Are there restrictions for heating and cooling a Yankee?
Yes, there are strict procedures that must be followed to heat and cool the dryers slowly and uniformly to prevent damage to the Yankee.

What items should be inspected regularly to ensure the safe operation of the Yankee dryer?
Regular maintenance checks should include the steam and condensate system, shell thickness verification across the dryer face, and head tilt checks to determine if there is corrosion between the dryer head and shell.

What organization maintains rules for the Maximum Allowed Working Pressure (MAWP) of a Yankee Dryer?
The American Society of Mechanical Engineers (ASME) maintains a Boiler and Pressure Vessel Code (BPVC) that set the MAWP based on the Yankee diameter and shell thickness.

Sample Video Transcript

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

Housekeeping is especially important around the Yankee dryer. Paper dust can build up quickly, especially around and behind the craping and cleaning doctors. The combination of dust, hot surfaces, high-temperature air, and sparks from the craping and cleaning doctors can easily generate a fire that can spread quickly. It is very important to keep the dryer area clean of oil leakage and dust build up with special attention to the tops, sides, and behind the doctor blade assemblies. Clean up spilled oil, grease, and water to prevent slips and falls. Clean up oil leaks around the Yankee dryer, especially to prevent ignition from sparks from the craping or cleaning doctors.
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