Brown Stock System Basics

SKU: C-629Duration: 31 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:

Kraft Pulping 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: 31 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

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

The purpose of a brown stock system is to process the brown stock, and, usually in this order: remove high density trash, break down or remove uncooked wood, and wash black liquor from the brown stock. This module will explain the process steps within a brown stock system, and the various types of equipment which are used to accomplish each operation.

Learning Objectives

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

  • Describe the purpose of a brown stock system
  • Identify and describe the major equipment
  • Identify and describe the primary process flows
  • Describe the function of a rock trap
  • Describe the function of a screen
  • Describe the function of a washer
  • Differentiate between a fibrilizer and a refiner
  • Describe countercurrent washing
  • Identify and describe the safety hazards in the brown stock system

Key Questions

The following key questions are answered in this module:

What is brown stock?
Brown stock is the name for the mixture of cooked wood chip and cooking liquor that is discharged from a digester.

What is the goal of a brown stock system?
The purpose of a brown stock system is to remove all components of the cooked, discharged pulp mixture from the digester that would interfere with paper or board making.

Why is are rock trap located immediately after the digester?
The rock trap removes dense components such as rocks that might damage downstream equipment.

What is the purpose of brown stock screening?
Brown stock screening relies primarily on size differences to remove components which are no suitable for paper or board making.

What is being washed from the pulp in brown stock washers?
Spent cooking chemicals, or ""black liquor"", is washed from the cooked pulp in the brown stock washers.

Sample Video Transcript

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

The brown stock discharge from the digester also contains small pieces of uncooked wood or shives, and other small materials such as rocks, metal, and plastic. These smaller sized contaminants are removed from the brown stock by low consistency screens. The screens contain a cylindrical metal plate that has small holes or slots that allow the acceptable brown stock fibers to pass through, while blocking the contaminants. A screen has a rotor that turns at high speed to sweep the screen plate and prevents plugging by creating a back pressure pulse.

Customer Q&A

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.

© Convergence Training | Privacy Policy