You can see a lot of blood footprints.

According to the scene people describe, the evening activity gradually into the end, from the left side of the stage, the right side, the front of each sprinkled out the last shot of seven-colored powder into the sky. After the powder launch, the front of the stage brightened out a large flame of fire, then the bear flame laid the ceiling, quickly wrapped the people in cool swimwear in front of the stage.

One tourist said that at the time the stage suddenly erupted a lot of dust into the rock area, after the stage again heard the suspected explosion of fire, also thought it was a sound light effect, did not think it was really caught in the sea of fire, everyone panicked and escaped.

One witness said that the explosion suddenly occurred, many people in the lower half of the body were fire, people who saw were running, just like hell, everyone was crying, all blood, floating in the river was blood, everyone was in the bubble.

A young man or a student.

The early-to-date advertising of the Eighth Sense Garden Colour Party, which began at 14 a.m. on the Eighth Sense Land Battlefield on the 27th, attracted more than 4,500 people to participate. Among the joyful crowd, there were 18-year-old college student Julie and her two peers. There were also graduate students from the mainland, Chen Lingdan and Sunshine, who attended the University of Xinjiang Transportation.

At the end of this semester, Chen Lingdan and Chen Chu wanted to relax. At more than 6 a.m. they also photographed the park scene and sent us a photo. Chen Lingdan's royal colleagues at the freshwater horse hospital accompanied by Chen Lingdan said that Chen Lingdan's position near the water, quickly poured out the fire, and Chen Chu was closer to the stage, and the injury was more serious.

In the afternoon of the 28th, reporters at the freshwater horse hospital saw the wounded Chen Lingdan. Chen Lingdan, 24, was a Fujian-Nanping citizen, who came to Taiwan last year to study the master's degree in visual communication arts at the Institute of Visual Communication of the University of Xinjiang. She lay on her bed, her face was pale, her wounded limbs were wrapped up, and she still occasionally mourned in a coma.

She told reporters that Chen's skin burned 53% of the body, the injured area mainly in the limbs, and she had been saying it was painful when she woke up.

23 years old, Jiangsu Nanjing, a graduate student of the Department of Communication and Technology at the University of Taipei Transportation. On the evening of the 27th he was sent to the Taipei Medical University affiliate hospital for treatment. The Korean colleagues who came to accompany Jiangsu Nanjing said that Jiangsu was in a coma, was in the care room for treatment, and the medical staff could not confirm her identity.

Julie's father was heard from the radio of the explosion of the eight-seater park. He called the daughter's cell phone, but the daughter did not receive the phone, so called to the hospital to ask, and finally learned that the daughter was treated in Taipei Hong General. She burned 90% of the surface area of the body, when hospitalized, the condition is serious, after cardiac pulmonary rehabilitation rescue is still observed in the hospital.

A young man, still a student, drives a taxi, and his father mourns that this happened to his daughter at the age of 18, which may have ruined her whole life.

Why is the dust explosion so powerful?

Beijing Mining Research Institute senior engineer, PhD, China Engineering Explosion Association director Wu Chongping said that the dust explosion is actually almost the same as the gas explosion, gasoline is gas molecules volatile into the air, to reach a certain concentration in the fire explosion. dust explosion, refers to very fine particles of dust, spread into the air, when accumulated to a certain concentration, will explode like gasoline.

Wu Jinping said that the dust in the Taiwan explosion incident is suspected of corn powder, corn powder encountered flammable substances burning, heat can not be spread in a short time, causing the explosion. That night the wind was big, the fire intensified, the dust composed of small particles, after the burning formed a small source of fire spray out, the burning even embedded into the human skin. Because dust burning has the characteristics of explosive, dispersive, small particles, the dust explosion can also produce a large impact wave, when the explosion is easy to cause stronger damage.

Wu Chongping said at the same time that the higher temperature when corn dust is burned is also one of the reasons for the major damage. The temperature when common fireworks are burned is 500-800 degrees Celsius, but corn dust can reach more than 1000 degrees Celsius, the damage to the body is greater. Now in order to ensure safety, the point of burning of fireworks on the stage is set at 60-80 degrees Celsius, can be reduced to 30-50 degrees Celsius after air cooling after spraying out.

Which dust is explosive?

Any solid material in the form of fine dust is called dust. The dust that can burn and explode is called flammable dust. According to Wu Changping, there are seven types of dust that are known to cause an explosion:

Metal, such as aluminum powder, titanium powder; coal; grain, such as wheat, starch; feed, such as blood powder, fish powder; agricultural by-products, such as cotton, tobacco; forest products, such as paper powder, wood powder; synthetic materials, such as plastics, dyes.

The explosion in Taiwan belongs to the food category. Wu Chunping also introduced that in August 2014, the explosion in the Jiangsu Kunshan workshop, which caused more than 200 people to die, the official announcement of the explosion cause showed that the dust caused fire.

There are three basic conditions for dust to form an explosion: first, it is flammable dust that hangs in the air at the appropriate concentration, forming a cloud of dust; second, there is enough air and oxidants; third, there is a source of fire or strong shaking, friction will also produce thermal energy.

Do you have to panic at home?

In recent years, colored powder has been widely used for parties, street runs and other events, TheColorRun, originating in the United States, also used these colored powders. After colored runs were introduced in China in 2013, events have been held in ten cities, and there is a popularity in the big cities. According to TheColorRun, the main ingredient of colored powder TheColorRun is corn starch, 100% pure natural, harmless to humans.

Wu Chongping said that corn powder can only burn or explode in special circumstances, and is generally safer.But although the main raw material is corn powder, there are definitely added colours in the powder, and the composition of the colour cannot be determined at the moment.

A small amount of dust is not easy to burn in an empty, relatively open environment. Wu Jinping suggested that the competition area should avoid clear sources of fire, the organizer has the obligation to provide safety advice, and the participants should not carry hazardous explosive flammable items such as lights, chargers.

National Tourism Bureau bans flammable explosive powder raw materials

In response to the explosion in Taiwan's new northern city, yesterday, reporters learned from the National Tourism Bureau that the relevant emergency handling mechanism has been launched.At the same time, the National Tourism Bureau issued a notice aimed at further tourism safety work, which explicitly requires the use of flammable, explosive powder raw materials and dangerous items to be prohibited.

It is understood that with the arrival of the summer, the majority of China's regions entered the tourism season, the pressure on tourism security increased. For this purpose, the National Tourism Administration issued a notification on further strengthening the tourism safety work. The relevant officials of the National Tourism Bureau said, the notification requires that the responsibilities for tourism safety supervision should be further implemented, the level of responsibilities signed; to strengthen the supervision of various types of tourism activities, various tourism links, prohibit the use of flammable, explosive powder raw materials and dangerous objects, strengthen the evacuation and dispersion measures, strengthen the safety supervision of travel agencies, rental boats, rental aircraft, etc., strengthen the safety supervision of the tourist team meals, guide the