The steelworks are a place where heat waves and blazing fires are intertwined, and workers toiled day in and day out, in the heat and danger.
Under the surface of the calm molten steel pool, there is a high temperature that can melt flesh and bones, and if you accidentally fall into it, what will be the ending you are waiting for?Do you feel the sharp pain in your heart first, or do you turn into liquid before you even notice it?
This is the question in the heart of every steelworker, and it is also the most concerned issue for them who are closest to danger.
In this kingdom of steel full of heat and danger, they challenge the forces of nature with their small bodies, struggling on the edge of life and death.
The maximum temperature that the human body can withstand is the result of a comprehensive influence of many aspects, and it is impossible to fully judge the limits of a person by simply looking at the numbers, which needs to be consideredAmbient humidity, exposure time, physical conditionand other conditions.
This limit has also gone through the process from theoretical inference to experimental verification.
As early as the 18th century, English physiologistsBlydon onBased on the principle of human sweat evaporation, it is inferred that the human body can withstand ultra-high temperatures in a dry environment.
For the first time, he made it clear thatSweat evaporatesIt is an important way for the human body to regulate its temperature.
Based on the results of his own experiments, he estimated that in a humid environment, only 48-50 degrees Celsius is enough to endanger life in a few minutes, and in a dry environment, the unclothed human body can withstand a high temperature of 120 degrees Celsius for up to 15 minutes, which opened a new chapter in the study of human heat resistance
In the middle of the twentieth century, it was the time of the Cold WarThe United States and the Soviet Union competed over space explorationTo ensure the safety of astronauts, aerospace medicine must study the body's response in extreme environments.
GagarinAs the first astronaut to go into space, it is natural to be the focus of research.
In various experiments, the researchers recorded data on his heat resistance:210 degrees Celsius without clothing, 270 degrees Celsius with thick clothing, all of which can be temporarily withheld, which confirms Boleyden's theory and accumulates valuable data for space missions.
At the same time,Japan's Unit 731 is a graduate student**, inhumane human trials were carried out on captives.
They also recorded the body's reaction to high temperatures: it survived for 30 minutes at 93 degrees Celsius and only 15 minutes at 120 degrees CelsiusThe results of these illegal studies also support the ability of the human body to withstand heat in dry environments
Contemporary scientists point out through more systematic researchA hot and humid environment can seriously reduce the body's ability to withstand heat.
In addition, individual differences are another key factor affecting the body's heat tolerance.
According to statistics, normal people with hyperthermia are usuallyAt 42 degrees Celsius, it is life-threateningHowever, there are still significant individual differences, such as heart disease that reduces heat tolerance, and healthy young people who can tolerate higher temperatures.
Therefore, the heat resistance of the human body is affected by multiple factors, and through theoretical inference to experimental verification, human beings have gradually understood this limit.
However, behind this is a bloody reality.
June 22, 2023 should be a calm and peaceful Dragon Boat Festival, but forA worker at a steel company in LiaoningBut this day became their nightmare.
In the morning of the same day, a group of workers were carrying out normal operations in the No. 7 blast furnaceThe high temperature of more than 2,000 degrees in the blast furnace makes the molten steel boil and tumble.
Suddenly, probably due toFatigue due to long-term use or recent improper maintenanceThe blast furnace wall cracked, and in an instant, tons of hot molten steel rushed out of the breach, drowning the workers who were operating.
The sudden tragedy occurred around 10 a.m., when workers had just finished a round of steelmaking and were preparing to start a new round of operations.
No one expected that at this moment, a loud bang would break the calm of the workshopA large hole appeared in the side wall of the No. 7 blast furnace, and hot molten steel gushed out of the gap, instantly flooded the 5 workers on the operating table below, and they were burned to death by the high temperature of more than 2,000 degrees before they even had time to react.
At the same time, the high-temperature molten steel quickly ignited the surrounding combustiblesThe whole workshop was instantly ablazeThe workers were terrified and fled in all directions.
Yet most of the workers suffered severe burns in the face of billowing smoke and raging tongues of fire, and worseThe fire quickly spread throughout the plantFor a while, thick smoke billowed out, and people only saw the light of the fire and heard screams.
The accident occurred during the Dragon Boat Festival, and many workers who had planned to leave work early and rush home to reunite with their families were happily waiting to go home for the holiday, but received bad news on what should have been a festive day.
A total of 4 people were killed and 9 were seriously injuredAnd those surviving workers, will also be in the future every Dragon Boat Festival to think of this terrible disaster, frequent accidents show that there are problems in equipment maintenance, steel plant safety awareness needs to be strengthened, we must realize that any poor maintenance may cause irreparable tragedy.
In fact,This has been preceded by a number of similar incidentsIn 2021 alone, there have been two serious steel plant accidents, on January 28, a steel plant in Yingkou had a furnace out of the circle accident, resulting in 2 deaths and 1 injury, and on March 24, a steel plant employee jumped directly into the hot molten steel and committed suicide.
In the face of such a tragic situation, it is difficult for us to imagine what it would be like for a person to fall into molten steel.
When a person accidentally falls into molten steel,What kind of pain will he suffer?It depends on a number of factors.
The temperature of molten steel is extremely high, under normal circumstances, the temperature when pouring into the furnace is 1250-1350 °C, and the temperature of molten steel after tapping is even higher, up to about 1650 °C.
This is far more than the temperature that human tissues can withstand, and is much higher than the temperature required for the crematorium, so that the hot molten steel will be thereIt melts human tissue in a very short time.
In addition, the density of molten steel is much higher than that of human tissue, and the density of molten steel is about 79g cm3, while the density of human tissue is only 1g cm3.
Such a huge difference in density causes the human body to not sink immediately when it falls into the molten steel, but to float on the surface of the molten steel, just like wood floats on the surface of the waterDuring this time, the human body is gradually melted by the heat.
In addition to this, the posture that falls into can also affect the level of painIf it falls head-down, the head will first come into contact with the molten steel, which can cause immediate damage to the brain, causing the person to quickly lose consciousness and no longer feel pain.
ButIf the foot enters the water first, the pain will slowly spread upwards from the footIt will be a very terrible and painful process, in which the brain will realize that the body is melting little by little, and it will suffer immensely.
If you fall lying down, you may inhale hot gases first, causing suffocation and fainting, but soon wake up again and experience burning pain.
Either way,Falling into molten steel can cause unimaginable pain in a matter of seconds.
Instead of comforting ourselves by saying that the person who fell into the molten steel did not feel pain, on the contrary, we should recognize that they suffered immensely, which is fully reflectedThe temperature and density of molten steel are so high.
We should deeply mourn this tragedy andReflect on how to avoid such a tragedy from happening again.
Some people may say that the chance of us ordinary people falling into molten steel is relatively small, but many high-temperature injuries in life are everywhereBurns are also accidents that often occur in daily life
Chengdu together in May 2021Battery car ** burn incident,Shocking and distressing, a 5-month-old baby suffered severe burns and is still in hospital**, and his recovery is worrying.
August 2019A similar fire accident occurred in the home of a resident in AnhuiFortunately, there was no *** person in time to control it, and we were close to the fire and burns.
In the face of a sudden fire accident, we must quickly judge the situation, be rational and calm, and be clearGetting rid of the fire source is the first policy.
At the same time, try to cover your head with wet clothing or blankets, and in the absence of a watererFind sand to cover upIt can also have a good extinguishing effect, and if you can't get out, you can also stagnateRoll on the ground and slap the flames hardto slow the spread.
After getting rid of the fire source,Immediately rinse the burn with cold running waterWhen rinsing, the water flow should be stable and calm, and the rinsing time should be kept at 10-30 minutes.
Do not apply herbs, which increases the area of the injury and the chance of infection, and after the burned area has cooled, gently remove the clothing that covers itBandage with clean gauzeThen seek medical attention as soon as possible.
While performing first aid for burns, it is also necessary to pay attention to the right state of mindDon't be scared by scorching, which is a normal reaction.
We must remain sensible, believe that the doctor will provide full treatment, and after discussing with family and friends, we can consider transferring to the hospital for medical treatment, but in the processBe sure to keep the burn area clean.
After the wound has healed, care should also be taken to avoid scarringScar ointment can be used or help from a doctor
However, we should be aware that most burn accidents in life can be prevented, soBe sure to improve the awareness of fire prevention, stay away from fire sources, use electrical appliances carefully, avoid electrical short circuits, store dangerous goods to standardize, and avoid accidental contact.
Life is fragile, danger is everywhere, and each of us should always be vigilant to prevent problems before they occur and stay away from fire injuries.
AI assistant creation season