How about 3200 calories of coal?

This is relative, it is not easy to burn, but it can catch fire, but its calorific value is low.

3200 kcal coal is inferior coal, in the words of ordinary people, it is firewood coal! I just can't help burning! It's still gray

Let me give you a simple example. You use this calorie of coal to boil a pot of water for 30 minutes, and you use 5000 calories of coal 10 minutes!

In your words, it's not cooked well!

This kind of coal is generally shallow coal, with a lot of gangue, but the price is cheap! If you burn a boiler for heating, the boiler worker should add more, and the calorific value is slow!

Haha, I'm exhausted, silly boy! Liar!

So in general, coal transportation, people are of high quality, which is not enough, so refuse! I have been doing coal for many years, and I can see how many cards at a glance without testing! Experienced boiler workers can see that!

Haha, but it's not the boiler worker who has the final say! This has happened to me. Boiler workers refused to burn coal given by leading relatives. The stove is a chain stove, which needs to be burned with water! The boiler worker didn't spray water, and then the boiler room was full of dust, so he went to the leader and said that the coal couldn't burn!

Later, the leader had no choice but to change the supply of my family! Ha ha laugh