Influence of Drying Temperature on Paper Properties Made of Sulfate-Bleached Softwood and Hardwood Pulps. P. 173–184

Complete text of the article:

Download article (pdf, 2.1MB )

UDС

676.017.439

DOI:

10.37482/0536-1036-2023-3-173-184

Abstract

Most paper mills in the Russian Federation consume around 40 % more electrical power than they actually require. The reasons are a low level of technical, scientific, and proficient assistance. Moreover, the produced goods have non-competitive consumption characteristics. The urgent current measures in this matter contain constructional and technological optimization, including drying temperature modes. The drying section of a paper machine is the most energy-consuming, while it significantly affects the mechanical strength and supplementary properties of the resulting paper goods with their structural and dimensional characteristics. Drying the paper web takes 72–77 % of the total energy of the paper machine. Therefore, the purpose of this study is to analyze the influence of the temperatures of the drying process on the strength and structural-dimensional properties of the paper, with the perspective for further application of the results in the practice of industrial companies and additional scientific investigation. The presented results show the influence of pulp type, beating degree, mass of 1 m², and drying temperature on the strength and structural-dimensional properties of laboratory samples. Within the investigational process, laboratory samples from sulphate-bleached softwood and hardwood pulp were created and tested. The weights of the samples varied from 60 to 120 g/m², and the beating degrees ranged from 20 to 50 °SR. The drying temperature extended from 80 to 140 °C. The analysis of the acquired paper samples revealed that the drying temperatures had a considerable impact on the strength, structure, and dimensional qualities of the material. Namely, while sulfate-bleached softwood and hardwood pulp types were used as a raw material, increasing the drying temperature from 80 to 140 °C had the greatest effect on the structural-dimensional properties of the paper made from a pulp with a higher beating degree and the greatest effect on the strength properties of the paper made from a pulp with a lower beating degree.

Authors

Daniil A. Prokhorov*, Application Engineer of Voith Paper, Postgraduate Student; ORCID: https://orcid.org/0000-0001-5206-4119
Vladimir K. Dubovy, Doctor of Engineering, Prof.; ORCID: https://orcid.org/0000-0002-2903-3872

Affiliation

Saint-Petersburg State University of Industrial Technologies and Design, ul. Ivana Chernykh, 4, Saint Petersburg, 198095, Russian Federation; daniel.prokhorov@gmail.com*, dubovy2004@mail.ru

Keywords

paper machine, drying section of paper machine, drying temperature of paper web, paper machine productivity, paper web, tensile strength, burst strength, tear strength, thickness, air permeability

For citation

Prokhorov D.A., Dubovy V.K. Influence of Drying Temperature on Paper Properties Made of Sulfate-Bleached Softwood and Hardwood Pulps. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 3, pp. 173–184. (In Russ.). https://doi.org/10.37482/0536-1036-2023-3-173-184

References

1. Boykov L.M. Improving the Drying Efficiency of Paper and Board Machines, and Corrugators. Saint Petersburg, SPbSTUPP Publ., 2015. 575 p. (In Russ.).

2. Boykov L.M., Prokhorov D.A., Ionin E.N. Improving Drying Efficiency on Paper and Board Machines. Cellyuloza. Bumaga. Karton, 2015, no. 2, pp. 66–69. (In Russ.).

3. Kamchatova E.Yu., Perevozchikova A.K. Trends in the Development of Pulp and Paper Industry of the Russian Federation. Ucheny`e zapiski Rossijskoj Akademii predprinimatel`stva, 2022, vol. 21, no. 2, pp. 43–49. (In Russ.). https://doi.org/10.24182/2073-6258-2022-21-2-43-49

4. Prokhorov D.A. General Characteristic and Development Prospects of the World Pulp and Paper Industry. Proceedings of the 3ed International Scientific and Technical Conference of Young Scientists and Specialists of the Pulp and Paper Industry «Modern Pulp and Paper Industry. Actual Tasks and Promising Solutions», Saint Petersburg, 8 November 2021. Saint Petersburg, HSTE SPbSUITD Publ., 2022, pp. 69–75. (In Russ.).

5. Prokhorov D.A., Smolin A.S. Performance Assessment of the Drying Section of Machines for the Production of Tissue Paper Grades. Lesnoy Zhurnal = Russian Forestry Journal, 2020, no. 2, pp. 159–168. (In Russ.). https://doi.org/10.37482/0536-1036-2020-2-159-168

6. Flyate D.M. Paper Properties. Мoscow, Lesnaya promyshlennost Publ., 1976. 648 p. (In Russ.).

7. Antonsson S., Mäkela P., Fellers C., Lindström M. Comparison of the Physical Properties of Hardwood and Softwood Pulps. Nordic Pulp and Paper Research Journal, 2009, vol. 24, no. 4, pp. 409–414. https://doi.org/10.3183/npprj-2009-24-04-p409-414

8. Björk E. Production and Application of Fine Fractions Made of Chemical Pulp for Enhances Paperboard Strength. Thesis for Licentiate Degree in Chemical Engineering. Sweden, Sundsvall, 2020. 41 p.

9. Boykov L.M., Prokhorov D.A., Ionin E.N., Lukianov S.A. Modernization of Steam and Condensate Systems of Drying Plants of Paper and Cardboard-Making Machines. Proceedings of the 102-th International Scientific-Practical Conference “The Technical Progress of Humanity in the Context of the Continued Expansion of the Material Needs of Society”. London, 2015, pp. 40–42.

10. Defraeye T., Houvenaghel G., Carmeliet J., Derome D. Numerical Analysis of Convective Drying of Gypsum Boards. International Journal of Heat and Mass Transfer, 2012, vol. 55, no. 9-10, pp. 2590–2600. https://doi.org/10.1016/j.ijheatmasstransfer.2012.01.001

11. Ham C.-H., Youn H.J., Lee H.L. Influence of Fiber Composition and Drying Conditions on the Bending Stiffness of Paper. Bioresources, 2020, vol. 15, no. 4, pp. 9197–9211. https://doi.org/10.15376/biores.15.4.9197-9211

12. Johansson A. Correlations Between Fibre Properties and Paper Properties. Master Thesis in Pulp Technology. Sweden, KTH Publ., 2011. 49 p.

13. Karlsson H. Some Aspects on Strength Properties in Paper Composed of Different Pulps. Licentiate thesis. Sweden, Karlstad, 2007. 57 p

14. Karlsson H., Rinnevuo T. Fibre Guide: Fibre Analysis and Process Applications in the Pulp and Paper Industry: A Handbook. Sweden, Kista, AB Lorentzen & Wettre Publ., 2006. 120 p.

15. Meltzer F.P. Technologie der Zellstoffmahlung. Von der Fakultät für Maschinenwesen der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades eines Doktors der Ingenierwissenschaften. Germany, Aachen, 1994. 148 p. (In German).

16. Miller T., Kramer C., Fisher A. Bandwidth Study on Energy Use and Potential Energy Saving Opportunities in US Pulp and Paper Manufacturing. Washington, 2015. 108 p.

17. Mäkelä P. Effect of Drying Conditions on the Tensile Properties of Paper. In Advances in Pulp and Paper Research. Proceedings of the 14th Fundamental Research Symposia, Oxford, 2009. FRC, Manchester, 2018, pp. 1079–1094.

18. Poirier N., Pikulik I. The Effect of Drying Temperature on the Quality of Paper. Drying Technology, 1997, vol. 15, no. 6-8, pp. 1869–1879. https://doi.org/10.1080/07373939708917333

19. Wahlström T. Influence of Shrinkage and Stretch During Drying on Paper Properties. Licentiate Thesis. Sweden, Stockholm, 1999. 12 p.

20. Wahlström T. The Influence of Drying Time and Temperature Revisited. Proceedings of the conference “Progress in Paper Physics”, 2006. Ed. by D.W. Coffin. USA, Miami University Oxford Publ., 2006, pp. 82–85.