Volume 02 Issue 06-2022
47
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The article recommends the industrial application of a wet dust collection and gas cleaning device with a contact
element sliding motion to determine its cleaning efficiency.
KEYWORDS
Consumption, rolling flow, wet method, contact element, rolling motion, liquid film, dolomite dust, air flow, gas flow.
INTRODUCTION
The main working factors influencing the cleaning
process were identified in the experimental model of
the wet-held dust collector, in which the developed
contact element generates a flow of flux [1,2,3]. The
gas velocity, gas flow, fluid flow, hydraulic loss, local
resistance of the apparatus and cleaning efficiency of
the apparatus were determined on the basis of
experiments. The contact element that generates the
current flowing into the apparatus is selected. Based
on theoretical and experimental research, the initial
Research Article
INDUSTRIAL APPLICATION OF DUST EQUIPMENT IN THE INDUSTRIAL
WET METHOD WITH CONTACT ELEMENTS AND EXPERIMENTAL
DETERMINATION OF ITS EFFICIENCY
Submission Date:
June 02, 2022,
Accepted Date:
June 12, 2022,
Published Date:
June 24, 2022
Crossref doi:
https://doi.org/10.37547/ajast/Volume02Issue06-07
Ergashev Nasimbek Axmadjonovich
PhD in Technical Sciences, Fergana Polytechnic Institute, Fergana, Uzbekistan
Xoshimov Avazbek Obidjon o‘g‘li
Assistant, Fergana Polytechnic Institute, Fergana, Uzbekistan
Abdusamad Muydinov Abduqayum o'g'li
Assistant, Fergana Polytechnic Institute, Fergana, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajast
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 06-2022
48
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
requirements and technical tasks for the apparatus
were developed.
Experimental tests to determine the effectiveness of
dust gas cleaning were conducted at the training
ground of the "Technological machines and
equipment" department of Fergana Polytechnic
Institute and the raw material production shop of JSC
"Quartz".
The device was installed on the dolomite drying
technological line of JSC "Quartz" in the dolomite dust
removal network formed on the drying drum (Figure
2). Experimental tests were carried out to remove
dolomite dust from the gas.
Figure 1. The wet powder in the overall appearance of the apparatus and method catching cleaner gas.
Workshop in raw materials dry dryer coming out wet
processing methods in the apparatus of dust in dust
contact dolomite elements catcher on experimental
studies were conducted. Industry tests the following
parameters a vortex into the gas stream flow form
contact element the working structure of the world
slope α=30o; 45o and 60o the hole diameter of which
secretes fluid shtutser dsh=2; 2,5 and 3 mm, the speed
of the gas in the apparatus υg=7,07÷28,37 m/s, in the
range of 70 to spend the apparatus by fluid 70÷189,2
l/hour will choose. The external environment
temperature is 20±2
℃
dry dryer the temperature of
the gas flowing powder 65 dolomite to dust 65÷80
℃
.
Volume 02 Issue 06-2022
49
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Figure 2. Dolomit technological line of drying of raw material.
1 - Bucket grapple; 2 - Jaw crusher; 3 - Drying drum; 4 - Ball mill; 5 - Sorting machine; 6 - Cyclone NIOGAS; 7 - Wet
dust collector with contact element; 8 - Bucket elevator; 9 - belt conveyor; 10 - Screw conveyor; 11 - Magnetic
separator;
Volume 02 Issue 06-2022
50
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Given the multiplicity of experiments, the use of
mathematical planning methods in determining the
efficiency of hardware cleaning and energy
consumption was determined [4,5,6]. According to it,
the diameter of the nozzle hole (X1), fluid flow (X2),
angle of inclination of the contact element blades (X3)
and gas velocity (X4) were selected as the variables
that have the greatest impact on the cleaning
efficiency and energy consumption of the apparatus.
marked. Table 1 shows the levels of the factors and the
intervals of change.
Table 1. The levels of the factors of change and range
№
Factors
Unit of
measure
Factor of the
world
character to
be justified
Besides-
browsing
range
Factors sathlisettings
lower
(-1)
main (0)
high
(+1)
1.
Diameter of hole
Shtuser
mm
X
1
0,5
2 mm
2,5 mm
3 mm
2.
Fluid
consumption
m
3
/hour
X
2
0,054
0,07
0,124
0,178
3.
The contact angle
of slope element
parraklar
degrees
X
3
15
o
30
o
45
o
60
o
4.
Gas speed
m/s
X
4
10,61
7,07
17,68
28,3
Cleaning efficiency (Y1) and energy consumption (Y2)
were taken as the criteria to be determined.
Assuming that the secondary polynomial fully
illuminates the effect of variable factors on the
determinants, the experiments were performed
according to the HARTLI-4 plan [7,8,9].
To reduce the impact of uncontrollable factors on the
criteria to be determined, the sequence of
experiments was determined using the 1/17 view of
the random number table. To determine the dolomite
dust treatment efficiency and optimal parameters of
energy consumption, the experiments were repeated
5 times separately. The arithmetic mean values of the
experimental results were selected. A multi-
component gas analyzer ANKT-410 was used to
determine the level of purification. The results of the
experiments are presented in Table 2.
The efficiency of dolomite dust treatment and its
energy consumption of it depend on many influencing
factors.
Volume 02 Issue 06-2022
51
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Table 2. The results of the experiments
X
1
X
2
X
3
X
4
Y
1
Y
2
d
sh
mm
Q
cthe pile
m
3
/hour
α, degrees
υ
g
, m/s
η, %
K
Next
, kj/1000 I
have
3
2
0,07
30
o
28,3
95,63
191,4
3
0,07
30
o
28,3
95,95
196,4
2
0,178
30
o
7,07
99,89
260,6
3
0,178
30
o
7,07
99,89
282,3
2
0,07
60
o
7,07
94,87
121,5
3
0,07
60
o
7,07
95,86
131,6
2
0,178
60
o
28,3
99,22
453
3
0,178
60
o
28,3
99,65
457
2
0,124
45
o
17,68
99,87
296,4
3
0,124
45
o
17,68
99,91
303,5
2,5
0,07
45
o
17,68
95,78
166
2,5
0,178
45
o
17,68
99,92
361,2
2,5
0,124
30
o
17,68
99,48
291
2,5
0,124
60
o
17,68
99,78
271
2,5
0,124
45
o
7,07
99,89
180
2,5
0,124
45
o
28,3
99,45
222,6
2,5
0,124
45
o
17,68
99,89
301
RESULTS
The following regression equations, which adequately
represent the evaluation criteria, were processed in
accordance with the HARTLI-4 program of the PLANEX
program.
According to it:
The efficiency of dolomite dust removal in the
apparatus is determined by the following regression
equation,%
The energy required for the dolomite dust removal
process in the apparatus is determined by the
following regression equation, kJ/1000 m3. The
analysis of the obtained regression equations
(equations 1-2) shows that all factors have a significant
impact on the evaluation criteria. In addition, fluid flow,
dusty gas velocity, nozzle hole diameter, and contact
element inclination angle appear to be complexly
related to the factors under study. The experimental
results were processed and evaluation criteria in the
appropriate order to the following equations
representing adekvat regressiya "planex thermal"
software Hart a-4 were taken on the program [10,11].
According to it:
Hardware in the dust of dolomit cleaning efficiency
regressiya determined by the following equation, %
Y
1
=+99,827+0,187X
1
+2,031X
2
+0,145X
3
-
0,217X
4
+0,067X
1
X
1
-0,085X
1
X
2
+0,166X
1
X
3
+0,000X
1
X
4
-
1,963X
2
X
2
+0,200X
3
X
3
-0,386X
2
X
4
-0,186X
3
X
3
+0,000X
3
X
4
-
0,145X
4
X
4
Hardware dolomite dust is determined by the
following equation for the cleaning process regression
term spending energy, KJ/1000 m
3
Volume 02 Issue 06-2022
52
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
06
Pages:
47-54
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Y
2
=+269,154+4,793X
1
+97,683X
2
-
0,017X
3
+21,267X
4
+36,397X
1
X
1
+1,329X
1
X
2
-1,579X
1
X
3
-
2,863X
1
X
4
+0,000X
2
X
2
+41,471X
2
X
3
+39,104X
2
X
4
+17,397X
3
X
3
+3,913X
3
X
4
-62,386X
4
X
4
The analysis of the obtained regression equations
(equations 1.1-1.2) shows that all factors have a
significant impact on the evaluation criteria. In
addition, fluid flow, dusty gas velocity, nozzle hole
diameter, and contact element inclination angle
appear to be complexly related to the factors under
study.
To determine the factors influencing the processes
under study, i.e., the cleaning efficiency of the
apparatus and the optimal values of energy
consumption, the regression equations were solved
for the dolomite dust removal process. At the same
time, the condition that the efficiency of dolomite dust
removal is higher than 98.9% was adopted in
accordance with the requirements of GOST-62-198-142
and GOST-67-198-142. This task was solved on the PC
"Pentium IV" using the Excel program "search for
solutions", the optimal values of the variables in
encoded form were obtained and the coded values
were converted to natural values. Thus, the optimal
parameters of the apparatus for the dust removal
process selected for the sample have been
standardized and can be written as follows. In the
process of cleaning dolomite dust:
Diameter of nozzle hole, dsh = 2.6 mm;
Fluid consumption, Qliquid = 0.138 m3/h.
The angle of inclination of the contact element
blades, α = 44o
Dust gas velocity, υ = 20.4 m/s;
CONCLUSION
From the experimental studies it can be concluded that
at these values of the variables, the energy
consumption of the device was 2.8 kW/h, the cleaning
efficiency was 99.46% and the hydraulic resistance was
1250.7 Pa. According to the results of the experiment,
the cleaning efficiency was 5.43% higher for dolomite
dust than for existing wet cleaning equipment, the
consumption of liquid for cleaning 1 m3 of air was 2.5
times lower and the energy consumption was 0.8 times
lower. The results obtained in the experiments fully
met the technical requirements for this type of device.
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American Journal Of Applied Science And Technology
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47-54
SJIF
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(2021:
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5.
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1121105677
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