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№ 8 (101)
UNIVERSUM:
ТЕХНИЧЕСКИЕ НАУКИ
август, 2022 г.
TECHNOLOGY OF MATERIALS AND PRODUCTS OF THE TEXTILE
AND LIGHT INDUSTRY
THE RESULTS OF PRACTICAL STUDIES OF THE IMPACT ON THE CLEANING EFFICIENCY
OF THE BUFFER DRUM INSTALLED IN THE MINE
Zafar Utashov
Assistant,
Jizzakh polytechnic institute, Republic of Uzbekistan, Jizzakh
Alisher Usmankulov
Doctor of Technical Sciences, professor, Jizzakh polytechnic institute, Republic of Uzbekistan, Jizzakh
Rustam Jamolov
Doctor of Technical Sciences, Department "Drying, cleaning and production of cotton dedusting "
JSC "Paxtasanoat Ilmiy Markazi" Republic of Uzbekistan, Tashkent
Khairulla Usmanov
Doctor of Technical Sciences, Associate Professor, Tashkent Institute of Textile and Light Industry Republic of Uzbekistan, Tashkent E-mail: usmanov. khayrulla@mail.ru
Bobir Sharopov
Assistant,
Jizzakh polytechnic institute, Republic of Uzbekistan, Jizzakh
РЕЗУЛЬТАТЫ ПРАКТИЧЕСКИХ ИССЛЕДОВАНИЙ ВЛИЯНИЯ НА ЭФФЕКТИВНОСТЬ ОЧИСТКИ БУФЕРНОГО БАРАБАНА, УСТАНОВЛЕННОГО В ШАХТЕ
Уташов Зафар Уролбой угли
ассистент,
Джиззакский политехнический институт, Республика Узбекистан, г. Джиззак
Усманкулов Алишер Кадиркулович
д-р техн. наук, профессор, Джиззакский политехнический институт, Республика Узбекистан, г. Джиззак
Джамолов Рустам Камолиддинович
д-р техн. наук,
Отдел «Сушка, очистка и производство хлопка обеспыливание»
АО «Пахтасаноат Илмий Маркази» Республика Узбекистан, г. Ташкент
Усманов Хайрулла Сайдуллаевич
д-р техн. наук, доцент, Ташкентский институт тексильной и легкой промышленности
Республика Узбекистан, г. Ташкент
Библиографическое описание: THE RESULTS OF PRACTICAL STUDIES OF THE IMPACT ON THE CLEANING EFFICIENCY OF THE BUFFER DRUM INSTALLED IN THE MINE // Universum: технические науки : электрон. научн. журн. Utashov Z.U. [и др.]. 2022. 8(101). URL: https://7universum. com/ru/tech/archive/item/14171
№ 8 (101)
UNIVERSUM:
ТЕХНИЧЕСКИЕ НАУКИ
август, 2022 г.
Шаропов Бобир Набижон угли
ассистент,
Джиззакский политехнический институт, Республика Узбекистан, г. Джиззак
ABSTRACT
The article presents analyzes of ways to improve the performance of the cotton gin and, as a result, the results of a practical experiment to improve cleaning efficiency by installing a buffer drum at the supplier. In this regard, it is advisable to set the height of the buffer drum above the feeder for high technical grades of raw cotton 150 mm, for low technical grades -180 mm.
АННОТАЦИЯ
В статье представлены анализы способов повышения производительности хлопкоочистителя и, как следствие, результаты практического эксперимента по повышению эффективности очистки за счет установки буферного барабана на поставщике. В связи с этим целесообразно устанавливать высоту буферного барабана над питателем на высоких технических сортах хлопка-сырца 150 мм, на низких технических сортах - 180 мм.
Keywords: feeder, drum, buffer, cleaning action, rollers, pile drum.
Ключевые слова: питатель, барабан, буфер, очищающее действие, вальцы, ворсовый барабан.
In order to carry out pilot work on the stationary conveyor of the cotton ginning enterprise of the Pakhtakor TEKS LLC cluster in the Jizzakh region and the modernized mine-supplier-heater for the UCC, cotton ginning equipment 1XK with 4 pile drums was installed. systems in production have been installed (Fig. 1).
For the experiment, the optimal air temperature in the heater shaft of the cotton spinner was set equal to 1200C [1-5]. The experiments were carried out on the
breeding variety Sultan, II- and IV-industrial varieties, in which the moisture content of the II-industrial variety was 13.8%, the weediness was 6.8%, the moisture content of the IV-industrial variety was 17.6%, and the weediness was eight 12 %.
The change in cotton quality indicators was studied depending on the technological process of primary processing of cotton according to the current and proposed technologies, the results of the experiments are presented in Table 1 and in Figures 2-7.
Figure 1. General view of the heating cleaner from small impurities, prepared in the proposed design
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UNIVERSUM:
ТЕХНИЧЕСКИЕ НАУКИ
август, 2022 г.
Table 1
Results of experiments conducted in production
The technological process in use Proposed technological process
№ Indicators С-6524, II-variety, 2- class C-6524, IV-variety, 2- class С-6524, II -variety, 2- class C-6524, IV -variety, 2- class
1 Quality indicators of cotton in bunt, % - humidity, - dirtiness. °° 00 <2 17,6 12,8 °° OO <2 ^ 17,6 12,8
2 Performance after 1XK (4 pile drum) unit in cotton spinner, % - humidity, - dirtiness. - cleaning effect, %. 13 ,5 5,8 14,7 17,2 10,0 21,8 10.4 5,2 23.5 12,6 8,5 33,5
2 Changes in cotton parameters after drying 2SB-10. - drying agent temperature, ^ - humidity, % - dirtiness, % 130 8,2 5,7 160 11,5 9,6 70 7,8 5,0 100 8,5 8,4
3 Indicators of cotton after UXK aggregation, % - humidity, - dirtiness, 8,0 1,4 10,6 2,5 7,7 0,9 8,2 1,5
4 Technological indicators of the UXK unit, % - decrease in humidity, - cleaning effect, - increased seed damage. 5,8 79,4 1,0 7,0 79,8 1,3 6, 1 86,7 0,9 9,4 87,9 1,1
5 Fiber performance after 1VPU fiber cleaner: - the amount of defects and impurities, % - variety, - class. 2,2 1 good 4,2 3 medium 2,0 1 higher 4,0 3 good
We analyze the obtained results in the form of a histogram. Below are the results obtained with changes in wetness, soiling and cleaning performance.
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Figure 2. Changes in the moisture content of cotton raw materials after the applied technological process
Figure 3. Changes in the moisture content of cotton raw materials after the recommended technological process
On fig. 2 and fig. 3, in the form of a histogram, moisture changes are analyzed after the primary processing of cotton and after the proposed design. As can be seen from the histogram of the technological process during operation, the moisture content of the cotton sample taken from the cotton gin was 13.8%, and the moisture content of cotton after the 1XK cotton gin installed on a stationary spinning machine in the air. the transport system accounted for 13.5%. At the next stage, the moisture content of cotton after the dryer drum is 8.2%, and after the UXK filler - 8.0% [6-9].
We see that the moisture content after 1XK was 10.4% in cotton of the II grade, 2nd class compared with the existing technological process, since the cleaning of
cotton was carried out by heating in the 1XK cleaner with a 4-pile drum installed on a stationary spinning machine in recommended mode. technology. After passing through the transshipment and after the drying drum 2SB-10, the humidity is 7.8%, from the UXK cleaning system 7.7% [10]. Similarly, the moisture content of cotton grade IV, class 2 after the technological stages is 12.6; 8.5; This is 8.2 percent. Relative to the current technological process, humidity 4.6; 3; We see a difference of 2.4%.
Figures 4-5 show a histogram of the change in cotton impurities by technological stages in the 1XK cleaner, which is used in the actual production of type II cotton, class 2 and type IV, class 2, and after using the heat generator. equipment in this purifier.
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Figure 4. Changes in the degree of contamination of cotton raw materials after the technological process used
Figure 5. Changes in the degree of contamination of raw cotton after the recommended technological process
From the bar graph in Figure 4 above, it can be seen that the degree of soiling of cotton obtained from the cotton gin was 6.8% in II grade 2 class, 5.8% after the 1XK purifier installed on the stationary spinning machine, and 5.7% after the purifier . drying drum., pollution after the USK cleaning system 1.4%. Also impurities of cotton of class IV, class 2 after the technological stages are 12.8; 10.0; 9.6; was 2.5% [11-13].
With the recommended technological process (Fig. 5), cotton impurities are 6.8% in the 2nd grade, 6.8% after spinning and 0.9% after the final cleaning system, 12.8 in cotton of class IV, class 2; 8.5; 8.4; is 1.5% and is expected to fall to 1.5 and 1.0% compared to the current [14-16].
Figures 6-7 show histograms of changes in the efficiency of cleaning machines by technological operations in the current and proposed technological processes.
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Figure 6. Changes in the cleaning efficiency of cotton raw materials after the applied technological process
It can be seen from the histogram that in the current technology, the cleaning efficiency of type II cotton in the 1XK cleaner on a stationary spinner is 14.7%, and in the UXK cleaning system it is 79.4%, and in type IV cotton it is 21.8% after 1XK, and in the UXK system it is 79.4% 8%.
In the proposed technology, the cleaning efficiency is 23.5% in 1XK for grade II cotton, 86.7% for the UXK system, compared with the current one by 8.8% and 7.3%, and for type IV cotton, the cleaning efficiency for 1XK is 33.5%, according to the UXK system it turned out to be 87.9%, which is 11.7% and 8.1% higher than the current one.
II-variety, 2-class H IV-variety, 2-class
Figure 7. Changes in the cleaning efficiency of cotton raw materials after the proposed technological process
Conclusion
In table. 1 when comparing the results of processing of cotton raw materials of type II, class 2 and IV-type, class 2 with the current cleaning technology and technologies for cleaning from small impurities of the new design 1XK total cleaning efficiency when cleaning
using the current type II technology 2-79.4 %, in the class 79.8% when processing the 2nd grade of IV-type cotton. Defects and impurities in the fiber 2.2% and 4.2%, i.e. fiber of the 1st grade of good and 3rd grade of medium was obtained, the cleaning efficiency of the proposed technological process was 86.7% in grade II,
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grade 2, grade IV 2 was 87.9%, the number of defects and impurities of the produced fiber was 2, 0% and 4.0%, which indicates a high grade 1 and a good grade 3. It can be seen that the quality of the fiber improves by 0.1-0.2%. In addition, it has been found that the coolant
consumption in the dryer drum is reduced by heating the cotton in a stationary spinning machine.
Cotton fiber heater can be installed in UXK system, ChX clarifier shaft and Gin machine shaft.
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