This is another tutorial for the level 3 about ancillary equipment. The first piece of ancillary equipment we are likely to come across is the shake. You tend to find the shake on old paper machines but not so much
I’m going to talk a little now about dewatering equipment. The first piece of dewatering equipment or element on the fourdrinier is the breast roll/ its main function is to support the wire horizontally. In some circumstances, it can have
You may already know about the different types of weaves in forming fabrics. Here, we are going to talk about the effect of the weave. The space in between the warp and weft filaments is where the water drains through.
Forming fabrics (weaves) is suitable for the Level 3 Technical Certificate in Papermaking. Just a little bit of history to start us all off; when papermaking was made as we know it today, it was done by the Chinese. The
I’m going to talk a little bit about tissue formers. When tissue was first produced, it was produced on a standard fourdrinier. We have the flow box, foils, the wire and suction boxes, couch roll and the off it would
Today, I am going to talk about twin wire machines. They come in a variety of forms. The whole purpose of them is to speed up dewatering and production time, which ultimately reduces the overall overhead cost. The benefits of
These are paper faults whose origins are at the wet end of the paper machine. The most common fault that people often refer to is formation. So, we might ask yourself what this is. The definition is the evenness or
Here, we are going to talk about cleaning the forming fabrics. Typically, they are either cleaned physically with high pressure needle jets or they are cleaned with chemicals. If the equipment needs acid cleaning, they tend to use hydrochloric acid.
Welcome to our level 3 tutorial on vat machines. The vat machine was developed simultaneously with the fourdrinier. In fact, it was developed by Dickinson on the Jason Site, where Ryan Donkin was developing the fourdrinier machine. This here is
This is part of the Level 3 Technical Certificate. In this session, we are going to be talking about drainage on traditional fourdriniers. On a traditional fourdrinier, there are three zones in some literature, four zones in other literature. I