Design Of The Industrial Prototype Of A Screw Press Device And Evaluation Of Its Technical Parameters
DOI:
https://doi.org/10.37547/ijasr-05-10-05Keywords:
Screw press, nozzle, screw pitch, volumetric flow, permissible exposure limit (PEL)Abstract
This study presents the theoretical and experimental results obtained in the design of an industrial prototype of a variable-pitch screw press developed for coal briquette production. The design process considered the following operational parameters: screw compression force — 2.5 kN, nozzle diameter — 25 mm, working chamber diameter — 100 mm, and a five-step screw with a maximum pitch of 80 mm decreasing by 5 mm per step, operating at a rotational speed of 1.5 rev/s. For a feed material density of 1346 kg/m³ and a press capacity of 2500 kg/h, the total electric motor power, gearbox transmission ratio, and overall press dimensions were determined. The implementation of the proposed design and method demonstrated a twofold reduction in briquetting costs, thereby enhancing overall economic efficiency. Industrial trials confirmed that the developed screw press fully satisfies the technical requirements for industrial application of this class of machines. The calorific value of the produced briquetted fuel ranged from 750 to 800 °C, while introducing a raw material mixing process at 95 °C was found to reduce emissions of sulphur oxide (SO₂) by 1.8 times, magnesium oxide (MgO) by 1.23 times, and anhydrous sodium carbonate (Na₂CO₃) by 1.36 times relative to the permissible exposure limit (PEL).
Downloads
References
1. Хакимов, А. А. (2024). Актуальность использования связующих при производстве угольных брикетов. European Journal of Interdisciplinary Research and Development, 27, 94-98.
2. Ахунбаев, А. А., & Хакимов, А. А. (2022). Сушка угольной мелочи перед брикетированием. Universum: технические науки, (9-1 (102)), 29-33.
3. Хакимов, А. А. (2022). Технология Получения Качественных Брикетов С Использованием Горючих Вяжущих Компонентов. Central Asian Journal of Theoretical and Applied Science, 3(6), 459-463.
4. Xakimov, A., & Vohidova, N. (2021). Relevance of the choice of binders for coal briquettes. Scientific progress, 2(8), 181-188.
5. Хакимов, А. А. (2021). Определение показателей качества угольного брикета. Universum: химия и биология, (5-2 (83)), 40-44.
6. Axmedovich, X. A., & Saidakbarovna, S. D. (2021). Research the strength limit of briquette production. Asian journal of multidimensional research, 10(5), 275-283.
7. Khakimov, А. А., Salikhanova, D. S., & Vokhidova, N. K. (2020). Calculation and design of a screv press for a fuel briquette. Scientific-technical journal, 24(3), 65-68.
8. https://meganorm.ru/mega_doc/norm/gost_gosudarstvennyj-standart/14/gost _21289-2018_mezhgosudarstvennyy_standart_brikety_ugolnye.html
9. Khakimov, А. А., Salikhanova, D. S., & Vokhidova, N. K. (2020). Calculation and design of a screv press for a fuel briquette. Scientific-technical journal, 24(3), 65-68.
10. Хакимов, А. А. (2020). Связующее для угольного брикета и влияние его на дисперсный состав. Universum: химия и биология, (6 (72)), 81-84.
11. A.A.Xakimov , N.Vokhidova, A.Abdulazizov. Coal powder pressing device. XI International Annual Conference “Industrial Technologies and Engineering – ICITE-2022” 126-128 pg
12. A.A.Xakimov. Sanoat chiqindilaridan bog‘lovchi sifatida foydalanib ko‘mir briketlari olishning dolzarbligi. Farg‘ona politexnika instituti. Ilmiy–texnika jurnali. Maxsus son №23. 2024 yil. 9-13 betlar.
13. A.A.Xakimov. Importance of drying in obtaining briquettes. XI International Annual Conference “Industrial Technologies and Engineering – ICITE-2024” 312-315 pg
14. A.A.Xakimov. Investigation of Emissions Released During the Combustion of Coal Briquettes Produced from Distillery Stillage and Paraffin Waste. American Journal of Applied Science and Technology. 2025.
15. A.A.Xakimov. Актуальность использования связующих при производстве угольных брикетов. European Journal of Interdisciplinary Research and Development. 2024.
16. Khakimov Akmaljon, Azizjon Isomidinov. Experimental study of the effect of technologica indicators on the durability of coal briquettes. Universum. 2025.
17. Akmaljon Xakimov, Rasuljon Tojiev, Ikromali Karimov, Nasiba Vokhidova,
Abdurasul Davronbekov, Avazbek Xoshimov, Muxammadbobir Xusanboyev, Oybek Soliyev, O’tkirbek Hamdamov. Research of the Process of Briquette Preparation from Coal Powder in a Screw Press. ICHELS.2024.
18. A.A. Xakimov. Sanoat chiqindilaridan bog‘lovchi sifatida foydalanib ko‘mir briketlari olishning dolzarbligi. Farg‘ona politexnika instituti. ILMIY–TEXNIKA JURNALI. Maxsus son №28. 2024 yil. 9-13 betlar.
19. A.A. Xakimov. Maxalliy bog‘lovchilar asosida olingan ko‘mir briketi mustaxkamligini tadqiq etish. Farg‘ona politexnika instituti. Namangan davlat texnika universiteti. Mexanika va texnologiya ilmiy jurnali. Maxsus son №1. 2025 yil. 500-504 betlar.
20. Khakimov A., Salihanova D. Problems of increasing the high combustibility of coal briquettes and analysis of additives // Universum: химия и биология: электрон. научн. журн. 2025. 10(136). URL: https://7universum.com/ru/nature/archive/item/20907.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Akmaljon Khakimov, Dilnoza Salihanova, Ikromali Karimov
This work is licensed under a Creative Commons Attribution 4.0 International License.
