Device for adding polyethylene oxide in papermaking process

Abstract

The invention relates to a device for adding polyethylene oxide in a papermaking process. The device comprises a polyethylene oxide dissolution barrel, a first screw pump, a polyethylene oxide diluting tank, a second screw pump and a paper machine flow box which are connected to one another sequentially, wherein a filter screen is arranged between the first screw pump and the polyethylene oxide diluting tank; polyethylene oxide exits from the first screw pump and then passes through the filter screen so as to form a large amount of uniform and clean stripy polyethylene oxide, the uniform and clean stripy polyethylene oxide enters the polyethylene oxide diluting tank, and undissolved lumps, fallen rotten materials in pipelines and impurities are intercepted on the filter screen. Compared with the prior art, the device has the advantages of ensuring the uniformity and cleanliness of the polyethylene oxide entering the paper machine flow box, avoiding the occurrence of eyes due to the polyethylene oxide problem, improving the quality of products and the production efficiency, reducing the loss and prolonging the operation time of equipment. The filter unit of the device is convenient to dismantle and clean, and the production and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a dispersant adding device in papermaking industry, in particular to a device for adding polyethylene oxide in papermaking. Background technique [0002] Polyethylene oxide, also known as polyethylene oxide, abbreviated as PEO, is a crystalline, thermoplastic water-soluble polymer, often used as a dispersant in the paper industry to improve paper sheet evenness. The use of polyethylene oxide in production needs to be dissolved, and the dissolution is uneven and easy to agglomerate, or when the liquid level is used to a low level (bottom of the barrel), there will be massive impurities. These lumps will go to the polyethylene oxide dilution tank, ranging from Block the filter screen of the polyethylene oxide dilution tank, and seriously enter the headbox through the filter screen, causing irregular holes on the paper surface, and sometimes polluting the felt and the screen surface, resulting in a lot of unqualified product retur...

AI Technical Summary

Problems solved by technology

The use of polyethylene oxide in production needs to be dissolved, and the dissolution is uneven and easy to agglomerate, or when the liquid level is used to a low level (bottom of the barrel), there will be massive impurities. These lumps will go to the polyethylene oxide dilution tank, ranging from Block the filter screen of the polyethylene oxide dilution tank, and seriously enter the headbox through the filter screen, causing irregular holes on the paper surface, sometimes polluting the felt and the screen surface, resulting in a lot of unqualified product return loss and Downtime loss; when this problem is found at the same time, the polyethylene oxide dissolution tank and dilution tank must be cleaned, resulting in a waste of polyethylene oxide and high unit consumption per ton of paper

Images