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American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

 

 

 

 

 

 

 

 

 

 

 

ABSTRACT 

In the article, due to the impossibility of controlling the cleaning process in the UXK cleaning unit used in the process 

of cleaning cotton from small and large impurities, an improved scheme of the UXK cleaning unit was developed. After 

the cleaning process in the improved aggregate, the cotton is cleaned from small impurities in pile drums, it is possible 

to clean it from large impurities in the cleaning departments of the UXK unit. 

KEYWORDS 

Cotton, small and large impurities, aggregate, cleaning, drum with piles, drum with saw, grid with colander. 

INTRODUCTION

The UXK unit, which is used to clean cotton from small 

and large impurities, uses continuous cleaning 

technology, that is, the cotton directed to the cleaner 

is cleaned in all its cleaning sections and then 

transferred to another process. In these sections, 

cotton pieces from the separated waste are 

regenerated in a separate drum. Existing scrubber 

suppliers use a manually operated mechanical system 

to control its performance. These factors do not 

provide an opportunity to control the cleaning process 

when the quality indicators of cotton change. During 

cotton processing, the inability to control the 

efficiency of the ginning process and the frequency of 

ginning prevents obtaining fiber with the same quality 

  Research Article 

 

ADVANCED TECHNOLOGY OF CONTROLLING THE CLEANING PROCESS 

OF THE COTTON 
 

Submission Date: June 04, 2024, Accepted Date:  June 09, 2024,  

Published Date: June 14, 2024 

Crossref doi: https://doi.org/10.37547/ajahi/Volume04Issue06-06 

 

 

M.M. Ochilov 
Ph.D., Associate Professor, Tashkent Textile And Light Industry Institute, Uzbekistan 

 

B. Bozorov 
Assistant Professor Tashkent Textile And Light Industry Institute, Uzbekistan 

 

N. Khashimova 
Assistant Professor Tashkent Textile And Light Industry Institute, Uzbekistan 

 

 

Journal Website: 

https://theusajournals.

com/index.php/ajahi 

Copyright: Original 

content from this work 

may be used under the 

terms of the creative 

commons attributes 

4.0 licence. 

 

https://theusajournals.com
https://doi.org/10.37547/ajahi/Volume04Issue06-06


Volume 04 Issue 06-2024 30 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

index. It causes technological difficulties in the 

processing of cotton fiber in further processes. 

Cottons of high industrial grade and low grade pass 

through the upper cleaning parts of the UXK unit. This 

does not affect the natural quality indicators of cotton. 

It will not be possible to perform the cleaning plan 

specified in Table 1. 

Considering these shortcomings, an improved scheme 

of the UXK cleaning unit was developed (Fig. 1). In this 

improved unit, the cleaning process goes as follows: 

After the cotton raw material is cleaned of small 

impurities in pile drums, it is alternately cleaned of 

large impurities in the cleaning sections of the UXK 

unit. 

After the dirtiness of the cotton reaches the 

recommended amount of dirtiness before ginning, the 

cleaning unit is removed from the cleaning unit by 

means of a section controlled in five parts and 

transferred to the next technological process. This 

control technology allows changing the cleaning 

process depending on the initial dirtiness of the cotton. 

Recommended cleaning plan for medium fiber cotton 

1-Table 

Cotton Cleaning plan 
Cleaning 

efficiency,% Class Var Impurity, % 
UXK cotton cleaning 
a set of aggregates 

For good cleaning cotton selection 

1 I - II 5,0 1XK + UXK  (1)* 84 

 III 8,0 1XK + UXK  (2)* 88 

 IV 12,0 1XK + UXK  (2)* 90 

2 I, II, III 12,0 1XK + UXK  (4)* 92 

 IV 16,0 1XK + UXK  (2)* 90 

3 I, II, III 18,0 1XK + UXK  (4)* 88 

 IV, V 22,0 1XK + UXK  (2)* 86 

For hard to clean cotton selection 

F
o
r 
h
a
r
d 
t
o 
c
l
e
a
n 
c
o



Volume 04 Issue 06-2024 31 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

t
t
o
n 
s
e
l
e
c
ti
o
n 

1 I - II 5,0 1XK + UXK (2)* + 1XK 80 

 III 8,0 1XK + UXK (4)* + 1XK 84 

 IV 12,0 1XK + UXK (2)* + 1XK 86 

2 I, II, III 12,0 1XK + UXK (4)* + 1XK 88 

 IV 16,0 1XK + UXK (2)* + 1XK 86 

3 I, II, III 18,0 1XK + UXK (4)* + 1XK 82 

 IV, V 22,0 1XK + UXK (2)* + 1XK 80 

 

 

Figure 1. UXK cleaning unit with controlled cleaning frequency 

In order to check the cleaning process of the UXK 

cleaning unit of the proposed scheme, researches 

were conducted on the cleaning of easily cleaned 

industrial varieties at the cotton ginning enterprise 

owned by Sultan tex LLC of Kashkadarya region, and 

on the cleaning of difficult-to-clean industrial varieties 

at the Saykhunabad cotton ginning enterprise of 

Sidaryo region. 

Experiments were conducted in the following manner: 

1. After the drying section, the moisture content of the 

cotton was 8-9%. 

2. The productivity of the UXK aggregate, the 

coordinated technology of the initial processing of 

cotton according to industrial varieties, was mainly 

determined by [8]. 

3. When the cottons of various impurities were 

cleaned, the UXK was stopped, its upper part was 



Volume 04 Issue 06-2024 32 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

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opened, and samples were taken from the cottons of 

the next sections. 

4. Based on the samples "Oz DSt 592: Cotton. Impurity 

detection methods » impurities were detected after 

initial cleaning based on the state standard. 

5. Based on the amount of impurities, the cleaning 

efficiency was determined for all cleaning 

departments. 

The measurement of the mass fraction of impurities 

was carried out on LKM equipment using methods 

based on mechanical separation of impurities from the 

cotton mass. 

The mass fraction is determined by the ratio of the 

mass of dry impurities to the mass of dry cotton. 

The following were included in the dirty mixtures: 

- mineral mixtures (pebbles, soil, sand, dust); 

- organic compounds (leaves, vases, flowers, cobwebs, 

parts of branches, as well as dry, rotten and split cotton 

parts that do not have durability). 

The following measuring tools and devices were used 

in conducting the experiment results: 

- LKM device designed to separate cotton impurities; 

- a laboratory scale with a weighing limit of no more 

than 1000 g and a permissible error of no more than  

20 mg; 

- SXL-3 laboratory dryer for drying cotton; 

- the test was conducted when the moisture content of 

cotton did not exceed 12%. If the humidity is high, then 

the cotton was dried using a laboratory dryer. 

Drying was carried out regardless of moisture in cases 

with green leaves, green bolls, green branches and 

other green impurities in the cotton. 

The cotton sample is placed on a smooth surface and 

laid in a flat layer in the shape of a rectangle. If pebbles, 

soil and clay lumps are found, then they are picked up, 

crushed and spread evenly over the average daily 

(combined) sample. The daily (pooled) sample average 

is then divided into four equal parts. Two diagonally 

opposite parts are removed together with the dust and 

impurities spilled from them, the rest of the cotton is 

spread again in the form of a rectangle, and this 

situation is continued until the average mass of the 

sample remains 1 kg. From this sample, three test 

samples of 300 g each are taken, one of which is a 

control. 

Rotten, broken and dried fibers that enter into dirty 

mixtures are removed from each test sample of cotton 

weighing 300 g. Then the test sample is cleaned of 

impurities for 3 min using the LKM device. 

After stopping the device, it is necessary to sweep the 

dust from the walls of the dirt chambers to the sides of 

the device. 

From the large dirty mixtures falling into the device, 

fibrous seed and seed that do not enter into dirty 

mixtures are collected. 

Large impurities remaining in the cleaned cotton are 

picked and added to the separated impurities. Large 

and small impurities collected from the device are 

weighed on the scales together with partially 

separated dead and dust, rotten, broken and dried 

fibers collected by hand from the test sample of 

cotton. 

The dead and free fibers that have come out of the 

guard are compensated by the small impurities left in 



Volume 04 Issue 06-2024 33 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

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the cleaned cotton. For some hard-to-clean cotton 

varieties that do not have this compensation, 

additional correction coefficients have been 

established. 

The mass percentage (impurity) of cotton impurities is calculated according to the following formula: 

,

н
m

2
K

1
K100

и
m

З


=
 

(1) 

 

where mi is the mass of separated (large and small) 

impurities, g; 

mn is the weight of the cotton test sample with 

impurities, g; 

K is a correction coefficient that takes into account the 

impurities remaining in the cleaned sample. For all 

varieties of selection except those indicated in Table 3.1 

K = 1.00. For new selection varieties of cotton, it is 

allowed to temporarily use other values of the K 

coefficient developed and approved in the prescribed 

manner in the Basic Organization for the 

Standardization of Cotton and Cotton Products until it 

is included in the standard. 

K2 is a coefficient that takes into account moisture in 

dirty mixtures. 

K2=0.98 - if the test sample is not dried in a laboratory 

desiccator before cleaning (the mass ratio of moisture 

is 12% and less). 

K2=1.00 - if the sample for testing was dried in a dryer 

before cleaning (mass ratio of moisture is more than 

12%). 

 

Table 2. A correction factor that takes into account the impurities remaining in the cleaned sample. 

Selection variety K1 coefficient 
value 

The mass fraction of impurity 
compounds with coefficient K1, % 

Bukhara-108 1,09 7% and more 

S-6524 1,16 7% and more 

S-6530, Bukhara-6 1,14 7% and more 

Namangan-77, An-Bayaut-2 1,12 7% and more 

S-6532 1,07 7% and more 

 



Volume 04 Issue 06-2024 34 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 04 ISSUE 06    Pages: 29-34 

OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

The permissible absolute difference (closeness of the 

method) between the results of the analysis of two 

parallel samples should not exceed: 

- when the mass fraction of dirty mixtures is up to 10% 

0.6% 

- when the mass percentage of dirty mixtures is higher 

than 10% 

1.0%. 

CONCLUSION 

An improved scheme of the UXK cleaning unit was 

developed to clean cotton from dirt and impurities. 

The difficulty of cleaning cotton was determined after 

its sample was cleaned in a laboratory device for 

cleaning LKM seeded cotton from impurities. 

One of the main controlled technological indicators is 

the productivity of cotton ginning machines, 

determined by the rotation speed of the supply rollers 

and determined by an empirical formula. 

A recommended cleaning plan for medium fiber cotton 

has been developed. 

REFERENCES 

1. Paxtani dastlabki ishlashni muvofiqlashtirilgan 

texnologiyasi (PDI-70-2017) Toshkent 2017y. 

2. B.T.Bozorov, prof. A.Parpiyev, dots. 

M.M.Ochilov, I.Shamsiyev. Paxtani tozalash 

jarayonida tola sifatiga qoziqchali 

barabanlarning ta’siri. // Fan va texnologiyalar 

taraqqiyoti. Ilmiy-texnikaviy va amaliy jurnal. 

Buxoro. ISSN 2181-8193. №4, 2022, 234-238 b. 

(05.00.00; №13). 

3. Xakimov SH.SH. Paxta xomashyosi xom 

ashyosini tozalagichining yuqori ishonchli 

raqabotbardosh texnologiyasi // “Fan, ta’lim va 

ishlab chiqarish integrasiyalashuvi sharoitida 

innovasion texnologiyalarning dolzarb 

muammolari” Respublika ilmiy-amaliy 

konferensiyasi ilmiy maqolalar to‘plami. - 

Toshkent. 2014. - b. 4-5 

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“Fan, ta’lim va ishlab chiqarish 

integrasiyalashuvi sharoitida innovasion 

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Respublika ilmiy-amaliy konferensiyasi ilmiy 

maqolalar to‘plami. -Toshkent. 2015, - b. 27. 

5. Xakimov SH.SH., Borodin P.N., Lugachev A.YE. 

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pered sushkoy ochistki xlopka-sirsa. // 

«Studenti i molodiye ucheniye KGTU– 

proizvodstvu» Mejvuzovskaya nauchno-

texnicheskaya konferensiya molodix uchenix i 

studentov. - Kostroma. 2005g.  

6. Xakimov SH.SH., Borodin P.N. Rezultati 

ispitaniy ochistitelya APT-12M pri 

predvaritelnoy pered sushkoy ochistke xlopka-

sirsa // «Studenti i molodiye ucheniye KGTU– 

proizvodstvu» Mejvuzovskaya nauchno-

texnicheskaya konferensiya molodix uchenix i 

studentov. - Kostroma. 2006 g.  

7. Ochilov M.M., Raxmonov SH.I. “Paxta xom 

ashyosini mayda va yirik iflosliklardan tozalash 

oqim liniyasini ishlab chiqish” Farg‘ona 

politexnika instituti. 2023 y 26-27 aprel ilmiy 

amaliy konferinsiya. 

 


