Volume 02 Issue 12-2022
52
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
12
Pages:
52-55
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The article discusses mining vehicles that are used to ensure the non-stop operation of cement plants: high efficiency,
high, high throughput and stability, low maintenance and repair costs.
KEYWORDS
Transport, productivity, reliability, climate, efficiency, personnel, prime cost.
INTRODUCTION
It should be noted that in order to ensure the smooth
operation of cement plants, the selection of highly
efficient machines operating in quarries is especially
given.
The article pays special attention to providing factors:
maneuverability; high permeability and stability,
minimal construction costs, temporary roads for
moving and transporting cargo, high performance and
load capacity and reliability.
Recently, the demand for cement in the Republic of
Uzbekistan has increased greatly.
For these purposes, more than ten cement concrete
plants have been built and they normally meet the
needs of consumers. For the implementation of work
on the extraction of limestone raw materials in
quarries, specialized high-performance vehicles are
used. Quarry equipment includes single-bucket
excavators, mining dump trucks, motor graders,
Research Article
ORGANIZATION OF MINING TRANSPORT
Submission Date:
December 20, 2022,
Accepted Date:
December 25, 2022,
Published Date:
December 30, 2022
Crossref doi:
https://doi.org/10.37547/ajast/Volume02Issue12-08
Omonov Kamol Khudoymurodovich
Termez State University, 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 12-2022
53
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
12
Pages:
52-55
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
bulldozers, tractors, loaders, etc. Classify vehicles used
in quarries for their intended purpose.
The transport complex must meet all production
requirements, withstand high loads, work in any
climatic conditions, and also have maximum efficiency
and reliability. Requirements depend on the method of
extraction of raw materials.
The most common types of mining equipment are
single-bucket excavators of various types, dump trucks
of large and medium capacity, bulldozers. They are
classified depending on the type, power, carrying
capacity, technical characteristics. Quarry transport
differs from other transport systems in mass;
homogeneity and concentration of the direction of the
main cargoes; high specific cargo turnover; significant
road traffic; fast turnover of rolling stock; unsteady
location of loading and unloading points; a large
proportion of technological downtime; relatively short
transportation
distances;
"hard
binding"
of
technological processes to the transportation process;
the rigid dependence of the location of transport
communications on the structural features of the rock
occurrence and the high weight of transport costs
compared to the costs of other technological
processes of open pit mining [2, 5].
The process of production of metallized products
depends on the process of transporting minerals from
a quarry to an intermediate and average warehouse or
to a processing plant. In many ways, the production
process is determined by the indicators of the
transport complex. The occurrence of failures in the
process of transportation of raw materials: the
occurrence of equipment malfunctions, lack of
availability of spare parts, lack of fuel, uneven supply of
the excavator to the dump truck and vice versa,
paperwork entails the occurrence of transport
downtime, which contributes to stopping the entire
production process. Hence, as a consequence,
increased costs, loss of time and non-use of resources.
[2, 6].
Mostly in quarries, BelAZ equipment is used. Its main
advantages are: optimal maneuverability; high
permeability and stability, minimal construction costs,
temporary roads for moving and transporting cargo,
high performance and load capacity and reliability.
The leading manufacturers of specialized mining
equipment are Caterpillar, Liebherr, VOLVO, Terex,
Komatsu, Belarusian and Mogilev plants, Izhorskiye
Zavody OJSC, Uralmash machine-building corporation,
etc.
For digging pits, loading and unloading minerals,
clearing the territory, etc., diesel and electric
modifications of excavator-type machines are used.
The most widely used diesel-electric excavator-type
machines cause difficulties in operation. The main
advantages of diesel excavators are the performance
of work under any climatic conditions, large carrying
capacity, high operational reliability, high productivity,
safety in excavation and loading operations.
The use of road quarry transport is limited to a short
distance for the transportation of minerals, and also
depends on the condition of the roadway, climatic
conditions and the technical condition of other
vehicles involved in the transportation process.
Many enterprises are trying to improve the efficiency
of the transport complex operation. The mode of
traffic is determined by the type of quarry. Since the
quarry has a limited size and the area of access roads
and sites does not allow for loading and unloading
maneuvers, therefore, mining enterprises are
developing various methods to optimize the use of
quarry road transport. The scheme of access roads for
Volume 02 Issue 12-2022
54
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
12
Pages:
52-55
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
loading is selected taking into account the shortest
time for supply, change of dump trucks. The
performance of an excavator is determined by the
duration of loading a dump truck with iron ore. In turn,
the duration of loading depends on the volume of the
div of the dump truck, the bucket of the excavator.
To reduce downtime in work, it is necessary to
organize work according to a cycle, distributing dump
trucks among excavators. This will allow to reduce the
time waiting for transport, downtime of dump trucks
for loading. [nineteen].
In order to control the process of transportation, the
use of a management system is required. By providing
information on the status of loading and unloading
operations to the dispatcher, it is possible to correct
the transportation process and apply timely decisions
on changing the production situation.
The indicators of automobile career transport are
determined by the operating conditions (including the
distance of transportation), the state of the rolling
stock
and
the
technical
operation
system,
characterized by the technical readiness of the vehicle
fleet and the utilization rate of the vehicle fleet [1, 8].
The productivity of the transport complex of mining
and processing plants is determined by the distance of
transportation, the technical speed of movement, the
types of excavators, the degree of use of working time
[2, 4, 7].
To avoid repair downtime due to malfunctions, regular
maintenance is required. When eliminating a failure,
due to the failure of a unit or unit, it is required to carry
out timely repairs and the availability of the required
spare parts [3, 5].
The creation of a perfect system for the technical
operation of the transport complex of mining and
processing plants can increase the efficiency of open-
pit automobile transport. A perfect technical operation
system should be based on operating conditions, the
number of rolling stock, the maintenance and repair
system, personnel qualifications, and the production
basis for the extraction of raw materials. Taking into
account these indicators, it is possible to reduce the
length of transportation, increase the maneuverability
of transport, reduce the time for transportation,
eliminate stops in work and, as a result, reduce material
costs for the extraction of limestone raw materials.
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Volume 02 Issue 12-2022
55
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
12
Pages:
52-55
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
К.Ю.
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