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ANALYSIS AND ASSESSMENT OF FIRE RISKS AT COAL ENTERPRISES AND
MEASURES TO PREVENT THEM
F.D.Yusupkhodjaeva
Doctoral candidate, Department of Life Safety
Tashkent State Technical University,
Tashkent, Uzbekistan
G.M.Gulomova
(PhD), Associate Professor, Department of Life Safety;
Tashkent State Technical University,
gulyamova_gulnora433@gmail.c
Abstract:
This article provides a deep analysis and assessment of possible fire risks arising in
coal mining, as well as methods for their control and measures for their prevention. Also, the
work studies the features of fire risks at coal enterprises.
Keywords:
coal industry, carbon, risk, mines, brown coal, hard coal, fire safety.
Introduction
. Fire safety is one of the most important components of coal mining operations.
The coal industry is characterized by increased risks of fires due to the specifics of working with
coal, high temperatures at some stages of processing and mining, and the presence of flammable
materials. Assessment and analysis of fire risks, as well as timely measures to prevent them, are
key factors contributing to reducing the number of emergencies and ensuring the safety of
workers and the environment.
Currently, there is a significant number of normative-technical and normative-legal documents in
the territory of the Republic of Uzbekistan that regulate the assessment of fire risks and describe
the methods for their determination at industrial facilities, including in the mining industry.
When assessing the compliance of a production facility with security, the parameters, risks and
other criteria are examined according to departmental regulatory documents adopted by state
executive authorities.
Coal mining and coal processing enterprises have their own specific features in design,
construction, operation, and also assessment of the level of fire safety of existing coal enterprises.
Coal industry enterprises are subject to increased requirements for labor protection, industrial
and fire safety. Most of the structures of coal industry enterprises were erected before the
adoption of current methods for assessing fire risks at production facilities and buildings of
various functional purposes. This does not allow a full assessment of the actual condition of the
facility in accordance with modern coal industry safety requirements, which leads to an increase
in individual and social fire risk. Moral and physical deterioration of equipment and structures
used also has a detrimental effect on the overall level of labor protection, fire and industrial
safety.
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A comprehensive fire hazard assessment is the first step in developing a fire protection plan and
reducing the risk of death and damage from fire. Fire hazards vary between surface and
underground mines and are dependent on the size, structure, materials, equipment and number of
personnel in the mine. Engaging a fire safety expert to carry out a detailed risk assessment can
reduce the likelihood of hazards being overlooked inadvertently.
Picture 1. Triangle of causes of fire in a mine
Although risk factors vary from site to site, common fire hazards may include mobile equipment,
mining rigs, welding and cutting operations, and storage of flammable and combustible liquids
(oils, greases, diesel and hydraulic fuels). Mined resources such as coal, coal dust and methane
also increase the risk of fire.
Features of fire risks at coal enterprises
1. Ignition of coal dust and gases. One of the main sources of fires at coal enterprises is coal dust,
which, when released into the air, can form explosive mixtures. Particularly dangerous are areas
where coal is mined, as well as areas where it is processed. Coal dust, at certain concentrations
and conditions (temperature, humidity, presence of ignition sources), can cause a fire or even an
fuel
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explosion.
2. High temperatures in technological processes. During coal mining, processing and
transportation, heating of materials may occur, which, in combination with insufficient
ventilation and a poor cooling system, creates conditions for ignition.
3. Improper storage and transportation of coal. If coal is not stored in designated places or is
stacked incorrectly, this may create a risk of fire. It is important to consider that during storage,
coal may spontaneously ignite if the temperature and humidity conditions are not correct.
4. Equipment and wiring. Excessive load on electrical equipment, improper use or poor technical
condition can lead to short circuits and fires. It is especially important to properly follow the
rules for operating electrical installations, which are often a source of potential hazards at coal
enterprises.
Table 1. Fire risk assessment scheme
Fire risk assessment at coal enterprises includes several key stages:
Yes
No
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1. Identification of sources of danger. At this stage, a detailed inspection and analysis of all
technological processes, equipment and potential fire zones is carried out. It is important to
identify places where coal dust may accumulate, as well as to establish the presence of potential
fire sources.
2. Assessing the probability of a fire. For each threat, an assessment of the probability of its
occurrence is made. This task is solved based on an analysis of historical data on incidents at
similar enterprises, as well as taking into account the specifics of the work of a particular facility.
3. Assessing the consequences. After identifying possible sources of fires and assessing the
probability of their occurrence, it is necessary to assess the possible consequences, such as
material damage, possible human casualties, and damage to the environment.
4. Development and implementation of a risk management system. Based on the assessment,
measures are developed to reduce the risk of fires, including changes in technology, equipment,
organizational processes and personnel training.
Coal mining fires can have catastrophic consequences for both workers and the environment.
Therefore, preventing coal mining fires requires a comprehensive approach and the use of
various safety measures.
1. Fire-fighting technologies and equipment. Modern coal mining enterprises use various
technologies and equipment to prevent and extinguish fires. One of the most effective methods is
the use of automatic fire extinguishing systems, which are installed in places with increased fire
hazard. These can be either powder or water systems, which can effectively extinguish a fire in
the shortest possible time.
Particular attention is paid to the ventilation systems of mines. Incorrectly adjusted ventilation
can lead to the accumulation of coal dust, which is one of the main risk factors for fires. Modern
ventilation systems are equipped with sensors that record the concentration of methane and coal
dust, and can automatically shut off the air supply if the level of hazardous substances increases.
2. Monitoring the condition of rocks and coal seams. One of the risk factors for fires is coal itself,
which can spontaneously ignite under certain conditions. This is due to coal oxidation processes
that can occur under conditions of high temperature and humidity. To prevent spontaneous
combustion of coal, regular monitoring of the condition of coal seams is carried out, especially in
those areas where there is a risk of high temperatures.
Special methods are also used to stabilize coal seams, such as cooling them or using chemical
compounds to suppress oxidation processes.
3. Employee training and safety drills. One of the key factors in preventing fires is the
qualification and awareness of workers. Coal mining companies regularly conduct training and
education of employees on fire safety. Workers are taught how to act correctly in the event of a
fire, what personal protective equipment to use and how to evacuate safely.
Particular attention is paid to training in the proper handling of flammable substances and
equipment. Employees must know how to use fire-fighting equipment, such as fire extinguishers,
and how to prevent the use of fire in hazardous areas.
4. Planning and organizing safety at work. It is important that each coal mining enterprise has a
clear plan of action in the event of a fire. This plan includes not only the organization of fire
extinguishing, but also the evacuation of personnel, as well as methods for rescuing people in the
event of smoke. На шахтах устанавливаются аварийные выходы, которые должны быть
доступны и в случае обрушения туннелей. Важно также предусмотреть средства связи,
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чтобы в случае чрезвычайной ситуации работники могли быстро сообщить о возникшей
угрозе.
In addition, preventive measures aimed at identifying potential fire hazards are regularly carried
out at the production facility, such as regular inspections of equipment, ventilation systems, and
monitoring the condition of mine shafts.
5. Use environmentally friendly methods of coal mining. One of the important aspects of
preventing fires in coal mining is environmental safety. Modern coal mining methods are aimed
at minimizing the impact on the environment, including the use of technologies that reduce the
likelihood of fires.
One of these methods is deep coal processing, which allows minimizing residual coal dust and
emissions of hazardous substances into the atmosphere. Technologies for the disposal of coal ash
and waste are also actively developing, which reduces the risk of fires in waste disposal sites.
Coal enterprises must be equipped with modern fire protection systems, such as automatic
extinguishing systems and installations for monitoring the condition of objects. The use of gas
and water extinguishing systems, as well as sensors for detecting the first signs of fire, helps to
promptly respond to incidents and minimize sources of ignition must be regularly checked and
maintained. This helps to avoid short circuits and other emergency situations that may lead to
fire. A key aspect of fire prevention is employee safety training. Personnel should be trained in
the correct actions to take in the event of a fire and undergo regular emergency drills. It is
necessary to strictly comply with current regulations, safety standards and operating instructions
for equipment and premises. Regular audits and monitoring of compliance with these standards
will help reduce the risk of fires.
Conclusion.
Analysis and assessment of fire risks at coal enterprises requires a comprehensive
approach, including both technical and organizational measures. Fire safety in the coal industry
is not only compliance with standards and the implementation of modern safety systems, but also
the creation of a safety culture among the enterprise's employees. A thorough risk assessment
and timely measures to prevent them help minimize the consequences of potential emergencies
and ensure safety for both workers and the environment.
Fire prevention in coal mining is a multifaceted task that requires a comprehensive approach.
This requires modern technologies, competent planning, regular training and a high level of
employee qualifications. Only by taking all these factors into account can the risk of fires be
reduced and safe working conditions at coal mining enterprises be ensured.
In conclusion, it can be noted that the analysis and assessment of fire safety in coal mining play a
key role in preventing accidents and ensuring worker safety. The coal mining industry faces a
number of specific risks, such as spontaneous combustion of coal, the presence of methane and
dust, which requires special attention to technical and organizational measures. An effective
monitoring system, regular equipment inspections, strict regulations and personnel training are
all necessary to minimize fire safety hazards. It is important that all stages of coal mining are
accompanied by a comprehensive approach to safety issues, which will ensure protection not
only for workers but also for the environment.
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2. G.M.Gulomova, M.N.Musaev, Problems of Ensuring Safety at Open Pits in the Republic of
Uzbekistan. JournalNX, 2020-314p.
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