“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 12, 2024. DECEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
246
IMPROVING THE SHOVELS OF THE DRUM DRYER OF THE
COTTON PROCESSING PLANT TO INCREASE THE VIBRATION
LEVEL OF COTTON
Q. Toshmirzayev
Assistant, Fergana Polytechnic Institute, Fergana, Uzbekistan
Tursunbayeva Durdona Baxtiyor qizi
Student, Fergana Polytechnic Institute, Fergana, Uzbekistan
Tursunova Farangiz Furqat qizi
Student, Fergana Polytechnic Institute, Fergana, Uzbekistan
Abstract
: In the article, instead of the shovels in the inner part of the drum,
concave-shaped shovels were installed, and in the middle of the concave-shaped
shovels, 150 mm high, 18 mm diameter stakes made of wire (prut) were installed.
As a result, it is possible to throw the cotton into the useless zone of the inner
chamber of the drying drum, and to dry the seeded cotton evenly over the entire
surface of the drum. Throwing the cotton in the useless zone and ripping it, in turn,
allows accelerating the release of moisture in the seeded cotton and makes it possible
to efficiently use the heat of the hot air supplied to the drum.
Keywords
: cotton, moisture, dirt, supply auger, drum, reducer, shovel.
Introduction
In cotton cleaning enterprises, cotton drying is the main production process for
processing seed cotton, which involves preserving the natural properties of the fiber,
obtaining high-quality fiber, and ensuring the efficient operation of equipment. The
quality of the produced product depends on the preparation of seed cotton for
storage, storage conditions, and readiness for processing in factories. From this
perspective, the main operation of the preliminary processing technological process
of cotton involves drying seed cotton, especially seed cotton harvested by machine
harvesting. According to the regulations of the preliminary processing of seed
cotton, the drying function is carried out in the drying-cleaning units of cotton
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 12, 2024. DECEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
247
cleaning plants. These units are equipped with a set of technological machines and
mechanisms, including drying drums.
Practical Research
Instead of the shovels in the inner part of the drum, concave-shaped shovels
were installed, and in the middle of the concave-shaped shovels, 150 mm high, 18
mm diameter stakes made of wire (prut) were installed. As a result, it is possible to
throw the cotton into the useless zone of the inner chamber of the drying drum and
to shake the seed cotton evenly across the entire surface of the drum. Throwing the
cotton into the useless zone and shaking it accelerates the moisture release from the
seed cotton and enables the effective use of the hot air heat supplied to the drum. At
the same time, the shaking of the cotton helps to separate small dirt particles from
the cotton.
Белгиланиши
8
7
5
4
6
3
2
1
№
Номланиши
Мўри
Исси? ?аво ?увури
Асос
Шнекли таъминлагич
Олд цапфа
Буйлама курак
Кўнгдаланг курак
2СБ-10. 00.02
8
7
5
4
6
3
2
1
№
Сони Изох
Хужжат
Узг Лит
Литер
Масса
Масшт.
1:5
Листов 3
Лист 1
ПСТ факултети
1Б- 14 гурухи
Сана Имзо
Лойихачи
Каф.муд.
?ўзиев Б
Рузметов М.
ТТДИТ кафедраси
10
12
1
1
1
1
1
I
I
6
4
3
9
8
5
11
10
12
7
1
2
I-I
9
10
11
12
13
14
2СБ-10. 00.01
2СБ-10. 00.03
2СБ-10. 00.04
2СБ-10. 00.05
2СБ-10. 00.06
2СБ-10. 00.07
2СБ-10. 00.08
2СБ-10. 00.09
2СБ-10. 00.10
2СБ-10. 00.11
2СБ-10. 00.12
Орка цапфа
Спицалар
Муфта
Электро двигател
Редуктор
1
12
1
1
1
Рахбар
Парпиев А.
13
2
СБ-10. 00.13 Кожух
1
Таклиф этилаётган куракнинг куриниши
45
3
5
00
0
250
II
II-
II
II
2СБ-10 ?уритиш
барабанининг схемаси ва
таклиф этилаётган
куракнинг кўриниши
Д Л
2
СБ-10. 00.14 Тўси? (клапон)
1
Figure 1. Cross-sectional diagram of the 2SB-10 model drying drum.
1 - Drum; 2 - Shovels; 3 - Front support; 4 - Feeder; 5 - Rear support; 6 - Drying agent nozzle; 7 - Front
axle; 8 - Shaft; 9 - Discharge hatch; 10 - Discharge shovels; 11- Spacers; 12 - Bearing; 13 – Drum drive
electric motor; 14 - Reducer.
Disadvantages of the Drum
1.
There are cases of clogged wet cotton in the feeding auger.
2.
The fiber becomes tangled in the feeder and drum, which negatively
affects the quality characteristics of the fiber.
3.
The surface of the drum’s cross-section is not fully utilized, meaning
the internal shovels need to be improved.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 12, 2024. DECEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
248
4.
The first 2-3 meters at the beginning of the drum are not utilized
because the high air speed blows the seed cotton away.
When analyzing the work of G.V. Bannikov, it was determined that the
diameter of the drum is related to its productivity, while its length is determined by
the level of heat utilization.
*
*
*
*
4
Х
Б
Ф
ХБ
Б
G
Д
Where: α
Б
- Length of the drum, mm;
G
ХБ
- Weight of the cotton inside the drum, kg;
ρ
Х
- Bulk density of the cotton inside the drum, kg/m³;
β
- Filling coefficient;
τ
Ф
- Residence time inside the drum
To study the movement of seed cotton inside the drum, Bannikov divides the
cross-section of the drum into three zones:
Zone of falling seed cotton
Zone of seed cotton standing on the shovels
Zone not filled with seed cotton
The residence time of the seed cotton inside the drum is determined as follows:
т
в
тф
б
хл
хл
пр
К
v
RF
G
30
Where: G
ХЛ
- Gravitational force on seed cotton;
R
- Total aerodynamic resistance force;
F
ХЛ
- Middle cross-sectional area, m²;
α
Б
- Length of the drum, mm;
v
тф
- Average velocity of the heat agent relative to the seed cotton, m/s;
K
в
- Impact coefficient;
ρ
т
- Density of the heat agent, kg/m³
Professor A.P. Parpiyev identified methods to accelerate the drying process of
seed cotton in a convective drum.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 12, 2024. DECEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
249
Figure 2. View of the proposed shovel.
1.
Transverse shovel
2.
Longitudinal shovel
Advantages of the Improved 2SB-10 Model Drying Drum:
1.
The productivity of the drum in terms of seed cotton is very high, up to
12 tons.
2.
The shovels evenly shake the seed cotton.
3.
The components of the seed cotton dry according to the standard.
4.
The drum's drying chamber allows the even distribution of seed cotton
over its entire surface, providing uniform shaking as well.
5.
The stakes at the ends of the shovels ensure that the seed cotton is
evenly shaken, allowing the heat flow to pass between each cotton piece and evenly
remove moisture from the seed cotton.
6.
The temperature of the used air exiting the drum decreases by 40-50%.
7.
It allows drying of high-moisture seed cotton even at low temperatures.
8.
The moisture removal from seed cotton in the drying chamber increases
by 15-20% compared to the old version.
9.
The temperature of the hot air supplied to the drying drum is 180°C,
which leads to lower energy consumption. This also helps maintain the natural
quality characteristics of the fiber.
10.
The temperature of the used air exiting the drum decreases by 40-50%.
11.
It enables the drying of high-moisture seed cotton even at low
temperatures.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 12, 2024. DECEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
250
12.
The moisture removal from seed cotton in the drying chamber increases
by 15-20% compared to the old version.
13.
The temperature of the hot air supplied to the drying drum is 180°C,
which results in lower energy consumption and helps maintain the natural quality of
the fiber.
Conclusion
Based on the results obtained, the design allows the cotton to be thrown into
the useless zone of the drum’s inner chamber and evenly shaken across the entire
surface of the drum. This leads to faster moisture separation from the cotton and
more efficient use of the heat from the hot air entering the drum. Additionally, the
improved shaking of the cotton helps remove small impurities from the cotton.
References
1.
Decree No. PQ-3408 of November 28, 2017, by the President of the
Republic of Uzbekistan on "Measures to Radically Improve the Management
System of the Cotton Industry."
2.
N.A. Navruzov, I.D. Madumarov, N.M. Akhmatov, M.A. Akhmatov,
"Drying Equipment for High-Quality Raw Cotton" Textile Problems, No. 2/2009,
pp. 104-106.
3.
Baltabayev S. D., Parpiyev A.P. "Cotton Drying Technology."
Tashkent: Ukituvchi, 1981.
4.
Odilzhanovich, T. K., Odilzhanovich, I. A., & Makhmudovna, N. M.
(2021). Analysis of FLUFF in the Process of Lintering of Seeds. Central Asian
journal of theoretical & applied sciences, 2(11), 26-28.
5.
Odilzhanovich, T. K., Makhmudovna, N. M., & Odilzhanovich, I. A.
(2021). The selection of the control parameters of the raw cotton electric sorter.
Innovative Technologica: Journal of Methodical Research, 2(11), 1-5.
6.
Odiljonovich, T. Q. (2021). About automation of loading and
unloading of cotton raw materials at cotton factory stations. ACADEMICIA: An
International Multidisciplinary Research Journal, 11(10), 2068-2071.
7.
Tashmirzaev
Kodirjon
Odilzhanovich,
Ibragimov
Akhadzhon
Odilzhanovich, Dilshodjon Rasuljonovich Ahmadjonov, Assessment of cotton flow
color in uster hvi system. American Journal Of Applied Science And Technology,
02-05, 11-17.
