XXVI MEĐUNARODNI SIMPOZIJUM IZ OBLASTI CELULOZE, PAPIRA, AMBALAŽE I GRAFIKE -CPAG25 (2025) [pp. 27-35]
AUTHOR(S) / АУТОР(И): Armina Čamić, Nevres Hajdić, Šefkija Botonjić, Mirko Stanić
Download Full Pdf 
DOI: 10.46793/CPAG25.027C
ABSTRACT / САЖЕТАК:
Wood is the most widely used raw material in the pulp and paper industry. It has a special character and therefore creates specific problems during processing. Technical and technological progress in the pulp and paper industry, mainly in the last 30 years, has brought a demand for a new understanding of the quality of wood chips for the production of sulphate pulp. Delignification of wood chips always represents a reaction in a heterogeneous system and its course is determined not only by the speed of the reaction itself, but above all by the speed of contact of cooking chemicals with the fibers. The line for cutting and screening wood chips is one of the first stages of innovation, improvement and investment, which ensures the efficiency of the overall production process. In order to achieve the goals in the production of pulp Natron-Hayat, a new knife system and a screen for screening wood chips were installed last year. Significant results have been achieved in increasing the production and quality of wood chips. Other significant results include: reduced downtime due to knife replacement and chip overflow on the screens, lower maintenance and energy consumption costs and improved overall process stability.
KEYWORDS / КЉУЧНЕ РЕЧИ:
New knife system, Screen, Chip quality, Softwood pulp, delignification
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
REFERENCES / ЛИТЕРАТУРА:
- Botonjić Š., Proizvodnja celuloze-teorija i praksa, Zenica (2017)
- Čamić A., Botonjić Š., The Effect of main parameters on Brown Stock Pulp Washing at Natron-Hayat Maglaj, JST&M 1-2 (2021)
- Quinde A. , Chip considerations: Papermaking processes start with wood chip quality, Pulp & Paper Canada, (2020)
- Gullichsen, J., Kolehmainen, H., & Sundqvist, H., On the nonuniformity of the kraft cook, Paperi ja Puu, 74, 486–490 (1992)