“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 11, 2024. NOVEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
430
IMPROVEMENT OF THE REGENERATOR USED IN CLEANING
COTTON FROM IMPURITIES
Toshmirzayev Qodirjon Odiljonovich
Assistant, Fergana Polytechnic Institute, Republic of Uzbekistan
G. Baxromova
Students of Group 88-21, Fergana Polytechnic Institute, Republic of Uzbekistan
Yu. Mamanazarova
Students of Group 88-21, Fergana Polytechnic Institute, Republic of Uzbekistan
ABSTRACT:
The article presents the results of research work on the
development of a new cotton regenerator for the extraction of cotton volatiles from
waste cleaners. The main distinguishing features of the design and technological
process of the new cotton regenerator for the extraction of cotton volatiles from
waste cleaners are described.
KEY WORDS:
cotton regenerator, breathable, bar drum, axial, cleaning
ratio, screw.
I. INTRODUCTION
It is known that the main disadvantages of a serial regenerator are associated
with the designs of the pneumatic feeder and working bodies. At the same time, the
use of two capture drums - the main one and the regeneration one - is sufficient and
acceptable for the developed regenerator.
The serrated drums of the RX regenerators have a diameter of 480 mm, while
the modern grasping saw cylinders are made from over-cut genie saws with a
diameter of 300 mm. Accordingly, with a decrease in the diameter of the cylinder,
the arc length of the grate arrangement decreases, and while maintaining the optimal
gaps between them equal to 40 mm, their number decreases from 10 to 6 pieces. at
the main drum and from 15 to 8 pcs. have regenerative. Due to a decrease in the
number of grates, a slight decrease in the cleaning effects will occur, which will be
compensated by an increase in the frequency of cleaning the regenerated fumes from
3-4 times to 6, 8 times.
Taking into account the revealed shortcomings of the semi-cylindrical
pneumatic feeder in the developed regenerator, it is advisable to form a channel from
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
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VOLUME 2, ISSUE 11, 2024. NOVEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
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the inlet to the outlet inside the housing above the stripping drum and on the side of
the main gripping drum, which should be located at the opposite sidewalls. Despite
the increase in comparison with the RX regenerator by almost 2 times the distance
between the inlet and outlet openings and a decrease in the channel cross-sectional
area in comparison with the semi-cylindrical feeder, a part of the small trash
impurities and free fiber in the waste will transit without entering the main gripping
saw cylinder. To prevent such a transit in the channel, it is advisable to arrange an
air-permeable bar drum along its longitudinal axis with the bars arranged along a
helical line. When rotating, such a drum will swirl the air flow around itself with an
axial displacement in the direction from the inlet to the outlet. Due to this, the waste
moving with the air flow will repeatedly pounce on the surface of the main gripping
saw cylinder. In this case, the frequency of supply of waste and regenerated volatiles
can be adjusted by the rotation speed of the bar drum.
The developed scheme of the regenerator is shown in Figure 1. The following
main working bodies are installed in the div of the regenerator: bar drum 1, main
2 and regeneration 3 saw cylinders, working in combination with fixing 4, 5 and
cleaning 6, 7 grates, removing slatted drum 8 and scorching auger 9, to the discharge
opening of which a tube 10 with a valve is connected. The screw 9 and the tube 10
are borrowed from the serial RX regenerator.
Figure 1.
Schematic diagram of a new raw cotton regenerator.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
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VOLUME 2, ISSUE 11, 2024. NOVEMBER
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The upper cover 11, front 12 and rear 13 walls adjoin the sides of the
regenerator div. The front wall 12 and the top cover 11 have inlet 14 and outlet 15
openings located at opposite sides. To them are connected, respectively, inlet 16 and
outlet 17 branch pipes. The div also contains the enclosing trays 18, 19, 20 forming
the channel, the shield 21, the guide trays 22, 23 and 24, the enclosing casing 25 and
the trough 26.
View from above (reduced) 1-bar loosening drum, 2, 3-main and regeneration
saw cylinders, 4, 5-fixing grates, 6,7-cleaning grates, 8-slat removing drum, 9-
scraper auger, 10-tube with valves, 11- upper cover, 12, 13-front and back wall, 14,
15-inlet and outlet, 16, 17-inlet and outlet, 18,19,20-guard trays, 21-shield, 22, 23,
24- guide trays , 25-guarding casing, 26-trough.
The work of the new regenerator of raw cotton from the waste of cleaning
equipment will be carried out as follows. The air vacuum created by the fan through
the condenser or separator through the pipeline (not shown in the figure), connected
to the outlet pipe 17, spreads through the channel formed by the enclosing trays 18,
19 and 20, as well as parts of the upper cover 11 and the front wall 12, spreads into
the div of the regenerator and in a pipe connected to the inlet pipe 16 (not shown
in the figure), into the open end of which the outside air and the waste transported
by it, as in the RX regenerators, are sucked.
From the branch pipe 16, the air and the waste transported by it through the
inlet 14 enter the channel formed by the trays 18, 19 and 20 and parts of the upper
cover 11 and the front wall 12 and come under the influence of the bar drum 1, which
rotates in the same direction with the saw cylinders 2 and 3 (counterclockwise on
the diagram). The bar drum 1 loosens the incoming waste and throws it onto the saw
cylinder 2, the teeth of which capture the raw cotton volatiles in the waste, and also
transfer the entire mass of waste to the zone of grates 4 and 6. The raw cotton flies
are fixed on the saw teeth of cylinder 2 by fixing grates 4, the gaps between which
are less than the linear dimensions of the flies, which does not allow them to be
separated from the saw teeth, and then, when they collide with the grates 6, they are
cleaned of trapped impurities, but free, not adhered to the raw cotton volatiles, weed
impurities are separated from the saw cylinder 2 under the action of centrifugal
forces and are released through the gaps between the grates 6.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
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Partially cleaned regenerated raw cotton volatiles and trash impurities
remaining on the saw cylinder 2 after passing through the grate zone 6 are removed
from it by a removing slatted drum 8 and thrown into the channel in which air moves
from the inlet 14 to the outlet 15 due to vacuum and under the influence of the bar
drum 1 axially, that is, along a helical line. Thus, the rotating bar drum 1 prevents
the direct movement of air from the inlet 14 to the outlet 15 and, accordingly,
practically eliminates the transit of waste without being fed to the saw cylinder 2.
The regenerated volatiles and trash impurities carried away by the air flow are
displaced to the outlet 15 and re-pounce on saw cylinder 2, on which the above-
described cleaning process is repeated. The rate of supply of waste and regenerated
volatiles to the saw cylinder 2, that is, the rate of their cleaning, depends on the air
flow rate through the channel and on the linear speed of rotation of the bar drums.
The trash impurities and part of the regenerated raw cotton volatiles that have
fallen out through the gaps between the grates 6 fall or roll down the tray 22 onto
the regeneration saw cylinder 3, the cleaning process on which is similar to that
described on the main saw cylinder 2. Raw cotton volatiles that have been cleaned
on the regeneration saw cylinder 3 are removed from it by a slatted drum 8, slide
over the flap 21 and mixed with the bats removed by it from the main saw cylinder
2, after which they are fed together into the channel. The impurities that have fallen
out through the gaps between the grates 7 fall on the auger 9 or through the trays 23
and 24 fall into its trough 26, after which the auger 9 is discharged from the
regenerator through the tube 10 with a valve. Regenerated raw cotton volatiles
moving in the channel along a helical line and upon reaching the outlet 15 are sucked
together with air into the outlet 17 and then transported through the attached pipe to
a separator or condenser (not shown in the figure), after which, depending on the
chosen technology, they processors are either mixed with the raw cotton supplied to
the refining equipment, or accumulated and then processed separately from the
supplied raw cotton. In the new regenerator, in contrast to the RX regenerator, the
incoming waste under the influence of the bar drum 1 is loosened, and their layer is
stretched along the length and decreases in thickness, which will ensure their supply
to the saw cylinder 2 in a more uniform layer without accumulation, resulting in the
throughput saw cylinder 2 should increase. To drive two saw cylinders 2 and 3, bar
drum 1 and auger 9, by analogy with the RX regenerator, an electric motor with a
power of 4.0 kW is sufficient, and to drive a slatted drum - with a power 3.0 kW.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
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ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
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The diameters of the sawing cylinders 2 and 3 for the new regenerator were
chosen equal to 300 mm, based on the calculation of using expired genie saws for
the manufacture of saw blades. The diameter of the stripping slatted drum 8, since it
is made using a shaft from a serial brush drum with discs with a diameter of 200
mm, is chosen equal to 286 mm. The diameter of the bar drum 1 is chosen equal to
300 mm. The design of the scorching auger 9 with the unloading tube 10 is
completely borrowed from the serial RX regenerator. At present, a cotton
regenerator has been manufactured at the “RIM Factory” subsidiary and installed in
the process line for cleaning cotton from coarse litter at the Baghdad ginnery, and
work is underway to determine its technological parameters.
From work, the following conclusions can be drawn:
- taking into account the identified shortcomings of a semi-cylindrical
pneumatic feeder in a serial regenerator, in the developed regenerator above the
stripping drum and on the side of the main capture drum, a channel is formed inside
the div from the inlet to the outlet, which is located on opposite sides;
- to prevent the transit of unrefined cotton in the channel, we suggest placing
an air-permeable bar drum along its longitudinal axis with the bars arranged along a
helical line.
- in the new regenerator, in contrast to the PX regenerator, the incoming waste
under the influence of the bar drum is loosened, and their layer is stretched along the
length and decreases in thickness, which will ensure their supply to the saw cylinder
in a more uniform layer without accumulation, as a result of which the throughput
of the saw cylinder will increase.
REFERENCES
1.
Handbook on the primary processing of cotton, book I, NPO "Khlopkoprom",
Tashkent, "Mekhnat", 1994.
2.
“Improvement of the technological process for the processing of regenerated
volatiles in order to improve the quality of the fiber and reduce the loss of cotton
materials in production” (report), topic 9311, PN Borodin, RRC “Khlopkoprom”,
Tashkent, 1994
3.
Oripov, N., Komilov, J., Xolikova, Z., & Toshmirzaevk, O. Research on the
Introduction of a Double-faced Improved Cotton Separator. International Journal
of Innovations in Engineering Research and Technology, 7(12), 105-110.
“JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN
UZBEKISTAN” JURNALI
VOLUME 2, ISSUE 11, 2024. NOVEMBER
ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869
435
4.
Odilzhanovich, T. K., Odilzhanovich, I. A., & Makhmudovna, N. M. (2021).
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of theoretical & applied sciences, 2(11), 26-28.
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Odilzhanovich, T. K., Makhmudovna, N. M., & Odilzhanovich, I. A. (2021). The
selection of the control parameter of the raw cotton electric sorter. Innovative
Technologica: Methodical Research Journal, 2(11), 1-5.
6.
Odiljonovich, T. Q. (2021). About automation of loading and unloading of cotton
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7.
Toshmirzaev Kodirjon Odilzhanovich, Ibragimov Akhadzhon Odilzhanovich,
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uster hvi system. American Journal Of Applied Science And Technology, 02-05,
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