“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 3, ISSUE 04, 2025. APRIL
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
530
IMPROVING PRODUCT QUALITY BY IMPROVING THE UXK
TYPE EQUIPMENT FOR SEPARATING LARGE IMPURITIES FROM
COTTON SEEDS
Toshmirzayev Qodirjon Odiljonovich
Assistant, Department of Natural Fibers, Fergana State Technical University,
Fergana, Uzbekistan
Hakimova Mohira
Student, Fergana State Technical University, Fergana, Uzbekistan
Abstract
The abundance of large and small impurities in cotton and the low efficiency
of cotton cleaning and drying technology lead to low quality and high cost of the
obtained cotton products. As a result, the prices of cotton products and the indicators
of income and net profit are low. Accordingly, the development of new methods of
cleaning raw cotton from impurities and resource-saving equipment and
technologies with high productivity is one of the important tasks.
Keywords:
UXK equipment, large dirt, saw drum, seeded cotton.
Introduction
To clean cotton seed from various impurities, the type of technological
equipment is selected taking into account their (mixtures') physical and mechanical
properties. For example, a section of sawn drums is used to separate large impurities
from cotton seed.
The efficiency of cleaning cotton seeds from impurities depends on the method
of action of the equipment on the cotton seeds: shaking the cotton seeds on a mesh
surface or grate, mixing the air flow during cleaning, and how the cotton seeds are
combed into the sawn drums. The effect of cleaning equipment working elements
on cotton seeds depends on a number of factors: the efficiency of the equipment, the
speed of rotation of the working parts, the technological gaps between the working
elements, their structure, and the number of times the cotton seeds are cleaned.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 3, ISSUE 04, 2025. APRIL
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
531
The UXK equipment is used to separate large impurities from cotton seeds. The
UXK-unit sections can be of three types: UXK.01-initial section, UXK.02-middle
section, UXK.03-final section.
The difference between them is that while the UXK.01 section has supply
rollers, the UXK.03 section has a closed chute where the cleaned cotton exits the
machine.
The UXK.02 section is designed to connect additional sections on both sides,
and the number of sections in the unit can be increased or decreased due to this
middle section (Figure 1). When cleaning selected varieties of cotton that are
difficult to clean, the number of sections in the unit is increased to 6
7. For example:
The KOGT complex is used for these difficult-to-clean cotton varieties.
Figure 1. The UXK complex is constructed on the basis of connecting the
UXK sections (A, B, V) with each other using EN-078 pile blocks (G).
While the UXK type cleaner operating in cotton ginning plants has a number
of advantages, this equipment also has technical problems, which are as follows:
• The UXK cotton ginning machine consumes a lot of electricity;
• Although this cleaner is designed to clean small and large impurities from
cotton, it is designed to clean cotton with a 4-4.5% impurity content picked by hand.
It cannot clean cotton with a 10-18% impurity content picked by machine to the
standard rate. This is a big problem.
In order to positively resolve the problems, it is necessary to design a modern,
innovative cotton cleaning device.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 3, ISSUE 04, 2025. APRIL
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
532
Figure 2. Drum with pegs.
1-drum with rubber coating, 2-rubber coating, 3- 100mm metal pipe.
The cotton enters the hopper of the machine and is directed through the feeder
to a drum with rubber-coated pegs rotating towards each other. The peg drum is
placed at a 15
o
slope, and the cotton is thoroughly shaken as it is directed from top
to bottom, and the cleaning efficiency is high. Small impurities separated from the
cotton are thrown out through the mesh surface. Solar panels are installed on the top
of the device, and alternative electrical energy heats the radiators and provides hot
air to the inside of the device. The cotton inside the device is cleaned with high
efficiency as a result of heating and thorough shaking. The drum pegs are covered
with a rubber coating, so that the cotton does not cause mechanical damage to the
cotton when the pegs hit it during operation.
Conclusion
In conclusion, it can be said that a number of works have been carried out to
improve the efficiency of the machine that cleans cotton from large impurities.
Along with the cleaning efficiency of the machine, research has also been conducted
to ensure that cotton does not become mixed with impurities. The results of testing
the device for attaching cotton raw materials to the surface of a sawn drum in
production conditions confirmed the results of practical tests. This article reviews
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 3, ISSUE 04, 2025. APRIL
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
533
and analyzes research conducted to improve the design of machines for cleaning
cotton from large impurities.
References:
1.
M. A. Babadjonov, A. P. Parpiyev, M. T. Tillayev «Paxtani dastlabki
ishlash texnologiyasi va jixozlari» Darslik. Toshkent-2013. 122-bet.
2.
Akhmedov, A. A., & Alimov, S. S. (2018). Improving cotton cleaning
technologies at primary processing enterprises.
IOP Conference Series: Materials
Science and Engineering
, 327(2), 022064. https://doi.org/10.1088/1757-
899X/327/2/022064
3.
Rashidov, A. M., & Kurbanov, M. A. (2020). Technological
improvement of equipment for separating large impurities from raw cotton.
International Journal of Innovative Technology and Exploring Engineering
, 9(3),
302–305. https://doi.org/10.35940/ijitee.C8302.019320
4.
Khodjaev, O. T., & Matmuratov, E. A. (2021). Analysis of cotton
processing equipment efficiency in removing mechanical impurities.
Journal of
Mechanical Engineering Research and Developments
, 44(1), 380–389.
5.
Gulyamov, R. A., & Sagdullaev, R. R. (2017). Improving the
operational parameters of cotton cleaning machines.
Applied Mechanics and
Materials
,
869,
573–577.
https://doi.org/10.4028/www.scientific.net/AMM.869.573
6.
Khusanov, B. A., & Nasritdinov, M. A. (2019). Study of the influence
of mechanical impurities on cotton seed quality.
IOP Conference Series: Materials
Science and Engineering
, 537(4), 042005. https://doi.org/10.1088/1757-
899X/537/4/042005
