Applications of Pulp and Paper Stock Pumps- Beginner’s GuideMarch 30, 2021
The paper and pulp industry makes heavy use of pulp and paper stock pumps. There are a wide variety and range of pulp and paper stock pumps that are manufactured per the field of use. The main characterizations for pulp and paper stock pumps are that they can be easily dismantled, assembled and contain all the efficiency features along with low or no maintenance cost which makes them so desirable. Introduction To Pulp and Paper Stock Pumps There are various designs and forms of pumps that are used for different purposes in industry. It is a well-known fact that paper pumps are radial in design and heavy-duty. They are used to handle pulp and paper stocks with up to 7% consistency. They fit for the liquids, sludge and raw sewage that are contaminated heavily. For all the liquor applications in the industry, pulp and paper stock pumps are a suitable choice. Pumping stocks, liquid, abrasive/ corrosive or clean liquids with a consistency of 8% in the process industries, paper stock pumps are put to operate continuously. If the acids, corrosives and alkalies slurries are present in high capacity then paper stock pumps are a suitable option. A renewable front-rear plate is present on the open impeller and wear- the ring is present in the closed impeller. Its pressure and temperature are 22 bars and 140 degrees C respectively. There are a wide variety and range of pulp and paper stock pumps that are manufactured per the field of use. Every company that manufactures these pumps makes efforts to bring add ons in the previous product features and they design their pulp and paper stock pumps that are able to compete with the other manufacturers worldwide. TFT pumps is a reliable and eminent brand that has been serving in this industry for decades. We manufacture custom- design pumps suitable for your business needs within an affordable budget. We also provide an array of services- from choosing the ideal pump for your needs to installing the best machinery system for your business, conducting regular maintenance checks and providing affordable annual maintenance contracts (AMC), we help businesses work efficiently with high performance. In this article, we have listed some of the basic information regarding pulp and paper stock pumps that you can use to understand them better. Types of Pulp and Paper Stock Pumps 1. High-Pressure Pumps for Chip Board Manufacturing Trim Squirt The width of the web paper is determined by the former or wet-end section of the paper machine. To trim the edges a pair of trim squirt nozzles are used to focus on either side of the web a high-pressure jet of water. The knock off showers separate the cut edges from the rest of the web. The edges of the wire are forced back into the broke chest by the knock-off showers that are placed beneath. A mixture of material and pulp is formed and reused in the broke chest. The width of the finished product is determined by Trim squirt application and it maintains the web integrity also. The wet pulp at such an early stage in the dynamic has not been through the dryer or press section. The web can get entirely ripped by the occurrence of interruption in the flow, or any irregularity or a flawed edge for that matter can stop the machine. It will eventually be re-threaded and cleaned which is very expensive and consumes a lot of time. Chemical Dosing In the process of papermaking at various points, each kind of chemical is put to use. The abrasives are pumped with any damage if the pumps are seal-less in nature. There are available choices of materials that enable the paper and pulp pumps to handle truculent chemicals. The metering pumps with standardized diaphragm pulse several times which causes impairment or damage of the piping system. Their uses are:
- 1. chlorine injection to the streams of wastewater,
- 2. pesticides into the white water,
- 3. injecting dyes and polymers in the headbox.