Moreover, the process of making the Bessemer converter is not complicated. It is actually a large steel furnace with lever wheels installed on both sides.
During refining, molten cast iron is poured into the converter from above, and then pressurized hot air is injected into the interior through special pipes at the bottom.
Hot air is passed through the molten iron, burning off the carbon and other impurities in the cast iron, turning it into steel.
As for the Bestway air steelmaking method, it is even simpler. Just add limestone to the original clay refractory bricks. There is no technical difficulty at all. The only thing missing is someone discovering the method.
The reason why it took Zhao Jun so long to get the work done was mainly because he had left Kaifeng long ago to inspect the local area and only returned to Bianliang at the end of the second year of Baoyuan.
It only took a few months to successfully build the principles and tools for that small steel plant. It was not difficult at all.
Everything is ready at this point.
Hundreds of factory workers lined the streets outside to welcome him.
Zhao Jun glanced around and found nothing wrong, so he asked Han Qi's nephew Han Gongyan, "Have you tried it?"
"I've tried it."
Han Gongyan said excitedly: "As the dean said, it only takes about a quarter of an hour to refine the molten iron into steel!"
"Well, let's try opening a furnace."
Zhao Jun said.
“Open a furnace!”
Cai Zhi quickly gave the order.
In an instant, more than a dozen workers began to take action.
They first came to a blast furnace, started adding coal into it, and then pushed the blower hard.
About 30 minutes later, the workers dug out a large amount of pig iron from the blast furnace.
In fact, according to the records in "The Exploitation of the Works of Nature", the process of smelting pig iron from iron ore should take about 6 hours.
But they naturally didn't dare to let Zhao Jun wait that long, so they had already prepared a furnace of pig iron before Zhao Jun came, and they could just heat it up after Zhao Jun arrived.
Workers used a steel frame to hold several hundred kilograms of pig iron. They then hooked the four corners of the steel frame with hook ropes, and then passed it through a tall frame and pulled it to the side of a converter using the pulley principle.
Everyone pulled the rope hard again, lifted the steel frame, and successfully poured it into the converter.
At this time, the temperature of the pig iron was very high. Then the workers in the steel furnace next to it began to pull the blower continuously. The top of the converter was like a volcano erupting, with sparks gurgling out.
If the worker pulling the blower had not had steel plates protecting his head and sides, he would probably have been burned by the flying flint.
After about ten minutes, the converter completed the oxidation process.
Then the workers on both sides turned the wheel, and the huge converter slowly fell down, pouring out molten steel like magma.
For the time being, the molten steel is placed in a mold made of refractory bricks. No matter what you want to make in the future, you only need to make a mold and pour it directly into the mold. Even molds for swords or cannons are no problem.
Watching the molten steel gurgling into the mold, Zhao Jun could feel the heat wave even though he was dozens of meters away.
Even after seeing such a scene, he was still shocked by the greatness of the First Industrial Revolution.
to be honest.
These techniques are not difficult.
The difficulty lies in how people discover their existence.
Once upon a time, Westerners found a way.
And now.
It is time for the Orientals to stand at the forefront of industry.
Zhao Jun couldn't help but say, "The first step of industry begins here!"
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