It has suddenly become popular recently, and the flames jumped to nearly 5 meters in 3 seconds! Don't follow the trend!

Near Chinese New Year

Netizens' "fancy activities" are "updated" again

Photography is popular on social platforms

Fried flour with fireworks

Videos that create an atmosphere

Some of the posts have received tens of thousands of likes.

Some netizens shared the shooting tutorial

“How big the flower is fried depends on how much flour is added”

Some minors

Imitation in video

Image source network

Fireworks and firecrackers fried flour

It is a very easy to cause

Dangerous behaviors of dust explosion

Dust explosions are not uncommon in daily life

From factories to festivals

It can happen in your kitchen.

You know dust explosions?

Possible harm?

How do we prevent it from happening?

↓↓↓

The flames jumped to nearly 5 meters

This atmosphere is dangerous.

Recently, the Hangzhou Binjiang District Fire Rescue Brigade conducted an experimental demonstration for everyone. At the experimental site, the firefighters prepared 5 kilograms of flour and placed a small double-kick firecracker in the middle of the flour pile.

The firecracker exploded 3 seconds after being lit, instantly igniting the surrounding flour. The flames produced by the dust explosion rose into the sky in the shape of a mushroom cloud, nearly 5 meters high, and ignited nearby flammable materials , producing a large amount of flames.

Source: Metropolis Express

The temperature generated by dust explosion is very high, which can easily burn the human body. In addition, the instability factor is high and the controllability is poor, which can easily cause irreversible harm due to improper operation .

The hot-tempered "dust family" Dust explosion is an explosion caused by combustible dust encountering a heat source (open flame or high temperature) within the explosion limit.

Flour, starch, milk powder, corn flour, aluminum powder, titanium powder, zinc powder, cotton, flax, polyester fiber, etc. are all types of dust that are prone to explosion. Once they accumulate to a certain concentration in the air and encounter open flames, they may instantly become a violent and powerful "dust bomb"!

Five elements of dust explosion

Combustion-supporting gas: A certain oxygen content is the basis for dust combustion.

Combustible dust: Dust that can burn by undergoing an oxidation reaction with combustion-supporting gases.

Ignition source: A high-temperature heat source that can cause the temperature of a local dust cloud to suddenly increase and cause combustion.

Dust cloud: A cloud of combustible dust suspended in the air and reaching the lower explosion limit.

Confined space: The dust cloud is confined to a relatively confined space.

In daily life

How to prevent dust explosions?

1. All kinds of food powders such as flour, corn flour, starch, etc. should be properly stored at home and kept away from fire .

2. When cooking, avoid making pastries near a lit fire , and especially remind children not to throw flour around.

3. If flour is accidentally spilled, turn off all fire sources immediately and open windows for ventilation quickly.

4. If a fire occurs accidentally and the fire is still small, you can use a wet towel, wet apron, wet rag , etc. to extinguish the flames.

Spring Festival is coming

Except that fireworks

"Close contact" with flammable materials such as flour

The following safety precautions should be taken when setting off fireworks:

Fireworks are beautiful

Pay attention to fire safety

Pay attention to the restrictions or prohibitions on the use of fireworks and firecrackers in the time periods and areas designated by the local people's government, and abide by them consciously. Set off fireworks and firecrackers correctly and safely during the time periods and areas where they are allowed .

There are particular requirements for the fireworks venue

Fireworks must be set off in open areas , especially away from flammable and explosive places such as gas stations and oil depots.

Read the instructions carefully

Before setting off fireworks, you should carefully read the warning words, firing instructions, and precautions on the packaging. Stay alert and clear-headed when setting off fireworks. Do not set off fireworks after drinking .

Check carefully if any abnormality occurs

In case of abnormal conditions, such as failure to ignite or flame failure, do not light the fire again immediately, and do not stretch your head or look closely. Generally , wait 15 minutes before handling it to avoid injury to your eyes, face and fingers.

Finally, I would like to remind you

Don't try

Fireworks + flour "fancy play"

If a dust explosion occurs

Water-based water mist fire extinguisher

If the fire is large

Move to a safe area immediately and call the police