Lime Kiln Fundamentals

SKU: C-435Duration: 42 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:  

$39
 Add to Cart

Great for in-person classroom training or as an alternative to DVD.

Includes printable documents and Convergence Video Player for Windows systems. Content expires after 1 year.

Language:  

$299
 Add to Cart

Great for trainers or groups who need unlimited online access to multiple courses. Available in two ways:

Recaust Series (Details)
Includes 12 courses for $499/year.

Pulping Library (Details)
Includes 72 courses for $1,499/year.

Ideal for corporate licensing and high volume users.

Get Convergence courses into your current LMS to track and report employee training. Or contact us to learn more about the advantages of licensing our courses with the Convergence LMS.

Get Pricing Info

 Need help deciding? Compare delivery formats.

Course Details

Specs

Training Time: 42 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English, Russian
 Multiple languages available for USB and Enterprise (SCORM/AICC) formats. Contact us for more info.

This course covers the purpose of the lime kiln and the role of lime (CaO) in the chemical recovery process at a kraft pulp mill. Then it describes the components and sections of a rotary lime kiln, and the chemical reaction that takes place inside the kiln. Finally, it lists some common problems experienced in lime kilns.

Learning Objectives

At the end of this module, you will be able to:

  • Identify the role of the Recaust system in a kraft pulp mill
  • Describe the role of lime and the lime kiln in the recausticizing process
  • Describe the calcining process
  • Identify the major components and sections of a rotary lime kiln
  • List the factors that affect the efficiency of the calcining process
  • Describe exhaust gas treatment and monitoring
  • Describe common problems in rotary lime kilns
  • List key operating variables

Key Questions

The following key questions are answered in this module:

What is the most important chemical reaction that occurs in a lime kiln called?
The reaction that occurs in lime kiln is called calcining, the conversion of calcium carbonate to calcium oxide.

What is recausticizing?
Recausticizing is the process of converting the chemicals in spent cooking liquor back to their original form so that they can be re-used in the kraft pulping process.

What are the three major process sections of a rotary lime kiln?
The three major sections are defined by the processes which occur within them. They are the evaporation, heating and calcining sections.

What kinds of pollutants may be a in the exhaust gas from kiln?
Exhaust gas from from kiln typically has high levels of particulate which must be removed. It may also contain sulfur-compounds which need to be removed.

What can happen if poorly washed lime mud enters the kiln?
Poor washing will introduce sodium compounds into the kiln which may lead to the formation of rings within the kiln.

Sample Video Transcript

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

A lime kiln uses heat, motion, and airflow to convert lime mud to lime, or in chemical terms, calcium carbonate to calcium oxide. This process is referred to as "calcining". The most common lime kiln designed found at kraft pulp mills is the rotary lime kiln. A rotary lime kiln is basically a long tube or cylinder set at a slight incline that slowly rotates. Lime mud is continuously fed in at the higher end of the cylinder, and the rotation and incline of the kiln cause the mud to slowly move down toward the opposite end. A burner at the lower end of the kiln provides the heat needed for the calcining reaction, and an induced draft fan at the lime mud feed end pulls the hot gasses through the kiln. The rotation of the kiln stirs the lime mud as it travels to fully expose it to the heat. By the time the lime mud complete its journey to the lower end of the kiln, it is about 98% calcined. The lime is now ready to be reused in the recaust process. The design and operation of a rotary lime kiln will be described next.

Customer Q&A

Ask a Question

Sorry, we're missing some information

I would like to have several employees take multiple courses. How can I set that up?

We're in the process of making bulk course and multiple user purchases easier. But for now, you can order multiple courses and contact us with details on who you'd like to assign courses to. We can set up each user's training plan and make sure everyone gets the eLearning assignments they need.

Can I get a free full-length preview of a course to see what this course covers?

While we do our best to offer details on course contents, we don't normally offer full-length previews. But please contact us with more details for a better understanding of what your organizaton needs and how we can help.

Do I get a certificate when I complete a course?

Yes. All of our courses allow you to print a completion certficate upon successfully passing the integrated test at the end of each eLearning course.

How do I log in to take a course that I have already paid for?

You'll receive an email with login details moments after you purchase your pay-per-view (PPV) course. Just click the login link and enter the user name and password provided.

Do you have courses in different languages?

Yes. While all of our courses are originally produced in English, we develop many courses in a growing number of languages, including Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Tamil, and Thai. Available languages are normally displayed in the Course Details section on each course page.
Added to Cart! Click here to view your cart.
Training Software
eLearning Courses
Solutions
Convergence Training Newsletter

Stay up to date on our products and offerings and get safety, compliance, and training administration tips in our free monthly newsletter.

©2016 Convergence Training | Privacy Policy