Why do flour particles explode when they reach a certain concentration and meet an open flame?

Northern pasta, southern rice? This is an ancient tradition, because the south is suitable for growing rice, so Renye Fang people like to eat rice, while the north is suitable for growing wheat, so they like to eat pasta. We want to eat food thousands of miles away easily. A bowl of delicious snail powder can be served on your table at any time, but the flour we eat is also dangerous and may explode. Of course, this will only happen when flour is densely distributed in the air. Why do flour particles reach a certain concentration? Will it explode when it meets an open flame? Flour particles are very fine, just like our firewood powder. When there is enough time, it can be ignited. Because it was a chain reaction, the space exploded.

There have been many flour explosions in history, mostly in flour mills, because there are many kinds of flour in flour mills, the air humidity is low and flour flies everywhere. If an employee smokes at this time, it is no different from smoking at a gas station, which will instantly ignite the surrounding flour and then trigger a chain effect. All the flour will be ignited. If this space can't bear so much energy, there will be a huge explosion. Don't underestimate the explosion of flour, both he and the bomb will explode.

We are more familiar with pasta than the explosion of flour. No matter in the south or the north, because of the convenient transportation, pasta has spread to thousands of households. In the morning, it is a very pleasant thing to eat two or two vermicelli, have a fried dough stick, drink a cup of soybean milk and go to work happily in a small shop. There are countless delicious foods made of flour. Snail powder? ,? Lanzhou Lamian Noodles? There are also spicy strips, snail powder and stinky tofu, which smell stinky and taste fragrant, making people feel refreshed immediately. The most unforgettable thing is spicy strips, which accompany many children's childhood. Give a spicy strip to several friends, and then remove the spicy oil from your hands, not to mention how much you enjoy it. ?

Now life is getting better and better, both pasta and rice are very nutritious. We must have three meals a day, so as to ensure sufficient energy and healthy body.