Shangwen needs to check the coking situation at the Guyang Iron Works. Once you know this, you can take the next step.

Coking coal is divided into metallurgical coke, which is a general term for blast furnace coke, foundry coke, ferroalloy coke and coke for non-ferrous metal smelting. Since more than 90% of metallurgical coke is used in blast furnace ironmaking, blast furnace coke is often referred to as metallurgical coke.

Gasified coke is coke that is used exclusively for the production of coal gas. It is mainly used in fixed-bed gas generators for solid slag discharge, and as gasification raw materials, to produce gas with CO and H2 as combustible components.

calcium carbide coke, ferroalloy coke, etc.

Today's coking is almost a fledgling industry, although it has begun to be used in iron smelting on a large scale, but no one knows how far the technology has developed.

Shang Wen and Ying Yu came to the place where the coke was made. All Shang Wen saw was an earthen coke oven. There was heat everywhere. From time to time, someone looks it up.

"It's like a big steamer." Yingyu said.

"Oh my God." Shang Wen exclaimed. If I thought that the technical requirements were too high, it would definitely increase the difficulty of coking. So it's just a simple way to do it. There are also some local methods. As a result, the huge demand for iron stimulated this rugged development model at once.

"High energy consumption, high Lang fees." Shang Wen said.

"What did you say?" Yingyu asked.

"It's time for Qin's coking industry to develop. Coking like this. It is impossible to make a big steel country. Shang Wen said.

"I don't know, but I think it's fun to watch the steaming." Yingyu said.

"You still don't just walk around. It's hot everywhere. If one is not done well, the life will not be guaranteed. Shang Wen said.

"I'll have to find out what is going on. This situation must change. Shang Wen said.

Look at the endless scorched ground. Shang Wen initially felt that such a coking scale must not be small. The Qin state needed a lot of iron. In order to expand, the Guyang Iron Works has almost doubled in size more than ten times in a few months. The number of people has rapidly expanded from one or two thousand to about 20,000. This is almost on par with a modern iron plant. The speed of development has far exceeded Shangwen's imagination.

With such a fast speed, the trouble is very big. The first is high energy consumption. Iron smelting is an extremely rugged development model to provide products at high speeds. Many blast furnaces were erected at once. The number of people is increasing almost every day. The excavation of the coal has mined the open-pit coal into a very large pit. Iron ore is also beneficiated. But it's extremely rough. Shang Wen had seen ore samples. The iron content in iron ore can only be considered moderate. But the state of Qin only needed a lot of iron. The other components of iron ore are lavishly spent. High speed, you need to sacrifice something.

Shang Wen frowned as he watched such a rough development. What Shangwen needs is a reasonable development model with a high resource utilization. But the current model is completely different from what I thought.

"Your Excellency. My lord. An attendant from Xianyang rushed quickly. Shang Wen looked around unnoticed. This pattern is too shocking. It's these coals. The type of coal that is not very suitable for coking, obviously did not think about it this way, so it was directly used.

"Hey, nerd. Ay. Nerds. Yingyu ran over and shouted.

"Hey." Yingyu moved Shangwen.

"Alas. The development is too rough. It's simply Lang fee. Shang Wen said a little anxiously.

"What are you anxious about? My father was in a hurry. You see. Saying that, Yingyu showed Shangwen the edict she took from the attendant. Some intermediate etiquette. This intimate relationship of mutual aid is directly offset by this.

"What do you mean?" Shang Wen didn't have the slightest intention to care about these things now. Shang Wen thinks about how to solve these problems as soon as possible, if this development continues, resource utilization is a problem, and environmental problems will have a greater impact on future development.

"My father's meaning is to let you return to Xianyang as soon as you receive the order." Yingyu said.

"It's not a reply to your father's letter. Why did you return to Xianyang all of a sudden, this is too fast. Shang Wen said.

"I don't know, but I guess my father sent another order after sending the letter." Yingyu said.

"I don't want to go back for a while, you see. The development is too unbelievable. Shang Wen said.

"If you don't go back, you have to go back. You see. Yingyu said and pointed to the carriage speeding in the distance, which was the king's carriage.

"I don't know if it's my father, but I'm sure you have to pack up your things and return to Xianyang immediately." Yingyu said.

"I don't want to go back. This problem has not been solved, and if it is not solved, I will not be able to go back. Shang Wen insisted on his opinion.

"Go back, I want you to make me perfume. You smell it, and there's still that. I've never smelled anything like this. Yingyu said.

"I said I wouldn't go back, I just wouldn't go back. There are many problems here, and many of them need to be solved immediately. Shang Wen said stubbornly.

"Phew." Zhao Gao stopped the carriage steadily. Then fly and dismount. Salute Shang Wen and Ying Yu.

"My lord, the king asked me to take you back to Xianyang immediately." Zhao Gao said. The reason why Zhao Gao came back was because after King Qin sent another letter, he immediately realized that Shang Wen was likely to drag on for a while. King Qin also knew Shang Wen's character. If some problems cannot be solved, it is absolutely impossible to come back. A second edict was issued. After the edict was issued, he found Zhao Gao and asked Zhao Gao to personally bring Shang Wen back.

"I don't want to go back." Shang Wen still insisted on his opinion.

"This." Zhao Gao was a little embarrassed. He was ordered to bring back the right phase, or else he would come to him.

"Your Highness the Princess. Help the old slave. Zhao Gao turned to the princess.

"Well, no problem." Yingyu agreed.

"Hey. Nerds. Let's go back. Ying Yu persuaded him.

"The current situation is not good. You saw it. What has come of this? If this development continues, it is no wonder that there are no problems. Shang Wen said anxiously. Shang Wen is thinking about how to remediate and plan. The iron mill is fundamental. It is necessary to solve all the problems in development as soon as possible.

"You're not going back.?" Yingyu's face changed and said.

"No return." Shang Wen said resolutely.

"Bang." Yingyu made a sword with her hand and struck Shang Wen the back of the neck. Under the heavy blow, Shang Wen was stunned at once.

"Hmph, let me do it." Yingyu said.

"Look at what. Tie it up and take it away. Yingyu ordered.

"Whoa." Zhao Gao quickly moved Shang Wen to the car. Yingyu also got into the car. Zhao Gao turned the carriage and rushed towards Xianyang.