......

Roland made himself a cup of tea, then looked at the nightingale, "Are you either?"

"Yes, thank you. Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo”

She leaned back on the recliner, pinching the dried fish in one hand and holding a copy of May's newly written script in the other, reading it with relish.

The nightingale had disappeared for two days since Anna had spoken to her, and when she reappeared in front of Roland, she seemed to have unloaded her burden, and reverted to her former free form. There was always a smile on his face that couldn't be hidden, and occasionally he would sneak a few glances at him, and his eyes were full of energy.

Like she is now.

Unashamedly, he rested his feet across the coffee table, his robe pulled to the side, revealing his slender legs wrapped in black stockings, and only briefly hid his figure when someone came in. This seductive posture often caused Roland's eyes to involuntarily tilt to one side, so that half a morning had passed, and not even a single drawing had been drawn.

I didn't know that I would have asked Soloya to draw this kind of warm socks that are close to nylon.

He brought another cup of tea with a pleasant fragrance to the nightingale, "The tea you want." ”

She put down the script, took it with both hands, and sniffed vigorously, "Ah...... It's so fragrant, can you add another piece of sugar for me?"

In later generations, Nightingale is undoubtedly a centrist of the salty and sweet parties, and he can't get fat at all. During the time when Roland was asleep, she lost weight very badly, and she lost a lot of weight all over her body, but she quickly returned to normal levels after he woke up, and it was as if there was an upper limit to her weight, and after reaching this standard, she would never gain again.

In the past, Roland would nagging that eating too much was easy to get fat, but now he found out that the other party didn't need to worry about this at all.

Placing a piece of sugar in her teacup, he returned to the table and drew a few more strokes, and finally couldn't help his curiosity, and said, "Nightingale......"

"Huh?"

"Anna she...... What the hell did I tell you?"

"Well...... "Well," she dodged and appeared steadily on the desk, "it's a secret." ”

"Can't even tell me?"

"It's Anna's request," Nightingale hesitated, then shook her head, "If it's about me, I'll say anything you want to know, but this ...... She asked me to keep it a secret for the time being. ”

"Well, well," Roland took a sip of his tea and didn't go any further. Although he could go directly to Anna, no one with normal emotional intelligence would mention it repeatedly at such a time.

At least he could see that Anna wasn't annoyed by it.

Just as he lifted the quill again, Nightingale suddenly said, "Thank you." ”

"What?" Roland was stunned and looked up, just in time to meet her eyes.

The autumn sun brightened her long golden hair, and also left a bright spot on her face, and her moving face was as beautiful as a picture scroll in the warm sunlight, and time seemed to stand still.

"Thank you for speaking my heart to her. ”

......

In the afternoon, good news came from the Ministry of Construction, and according to Roland's new drawings of steelmaking facilities, the first converter mill was completed at the foot of the northern slope of the mountain.

Of course, it's a factory, and it looks more like a simple iron shed, with a new piece of equipment on a sizable sizable place in it - unlike all previous furnaces, this time the smelting equipment is made of steel all over, the angular furnace frame and the huge converter have been coated with heat-resistant coatings, and the gray-black matte surface gives a sense of majesty and heaviness in the sun.

When Roland arrived at the furnace district with the town hall officials, the new stove had been surrounded by the old workers who had been recruited, and it was clear that everyone was curious about it.

"Your Majesty, can this furnace really make steel? It doesn't even have a place to burn a fire. Although Losia of the Ministry of Construction had previously questioned this issue, he still completed the construction of the converter meticulously according to the requirements of the drawings - all its components were made by Anna, and the weight reduction and assembly of the hummingbird shortened the construction period to less than a week.

"It's not just fire that produces heat in nature," laughed Roland, "and let the workers be ready for the furnace to be tested." ”

The three main technologies of steelmaking are open-hearth, converter and electric furnace, and the electric furnace that does not yet have the conditions is excluded first, and the remaining two he chose the latter after thinking about it for a long time.

Although the open-hearth furnace is the simplest in structure and closer to the operation of a traditional furnace, the disadvantages are also very obvious - first of all, it requires a lot of fuel, which is very detrimental to the resources available to Neverwinter. After all, the coal mine is far away from the source of the Chishui River, and the coking plant has just started, so it is already very difficult to meet the needs of blast furnace iron smelting, and if you add an open-hearth furnace to make steel, it will lead to a shortage of fuel.

And that's the biggest advantage of converters – they use almost no fuel. It is self-exothermic through the oxidation of impurities such as manganese, silicon, and carbon in pig iron, so that the temperature of the molten iron is always maintained at a high point, so that the smelting reaction continues.

The second disadvantage of the open-hearth furnace is that it occupies a large area, the smelting time is long, in order to strengthen the use of fuel, the open-hearth needs to build a regenerative tank, preheat the air in advance, and it takes more than half a day to smelt a furnace of molten steel. If you change to a converter, the size of the furnace is the volume of the equipment, the track and the molten steel transportation system can be shared, and it only takes tens of minutes to smelt once, and it can even be shortened to less than a quarter of an hour after the technology is mature, and the efficiency difference is huge.

It is precisely in view of these two points that Roland has chosen the converter as the main equipment for steelmaking in the future.

With the help of a steam engine, workers soon poured a large pile of pig iron ingots into the pear-shaped hearth.

"Anna, make a fire. ”

Anna nodded, followed the stairs to the top of the converter, summoned a black fire to melt the iron ingot, and in a few moments, the red-hot molten iron in the furnace lit up her face.

When the time comes to production, the molten iron in the steel mill will be supplied by the blast furnace, which is why he built the steel mill in the furnace area.

"Then do as I say," Roland instructed the head of the steelmaking group, "and insert the blowing pipe into the furnace." ”

Although these selected veteran workers are officially in contact with converter steelmaking for the first time, they have already operated similar subsystems before, and there is no essential difference between operating pipelines and controlling trailers. The steam engine rumbled, and a steel pipe slowly fell from the top of the furnace into the chamber.

The other end of the steel pipe is connected to the coated hose and leads to the steam engine-driven extraction equipment, and as the oxygen-rich air is sucked into the converter, the furnace mouth suddenly bursts into a sky-high flame, and orange-red sparks splash out of the furnace like a firework. The dazzling light is so incandescent that it is almost impossible to look at directly.

The city hall officials were amazed by the spectacular spectacle.

Roland felt extremely satisfied in the scorching heat that came to his face.

These sparks are a symbol of humanity moving towards a new era.