Super Chief

　　 The coal and wood have been put in the big pit, and the top is sealed with mud in accordance with the instructions of the stone bear. Only a flashing eye with a diameter of about forty centimeters is left in the middle.

　　 The wood in the big pit will be ignited by this flashing eye, and then the coking will begin.

　　 The fire blazed quickly. Because of the chimney effect, the flames rose up to a height of more than two meters. Thick smoke also emerged one after another, and the people onlookers were all taken aback by the scene in front of them.

　　 Actually, don’t look at the fire right now, but the coal inside hasn’t even ignited. When the flames have completely fallen and the flame in the eye of the fire is reddish orange, the coal inside has already started to burn, and then it is time to seal the eye of the fire with mud.

　　At that time, the burning coal will generate a high temperature of about one thousand degrees, and when the pilot eye is closed, the coal will change from a burning state to a dry distillation state due to lack of oxygen. This is the entire process of coking.

The brick house used to fire refractory bricks next to the big pit has a flue leading to the middle of the stone house. The waste heat generated by coking will reach the stone house along this flue, which will lead to the stone house. The slabs of refractory bricks that have been dried in the shade are completely burnt.

　　 This process will continue for a whole day!

　　 In fact, even Shi Xiong himself was not sure about making coking for the first time today. It's like the first steel-making process. Although Shixiong has seen the coking process and steps, this real coking is really the first time that a big girl went to a sedan chair.

　　 But fortunately, the coking process this time is generally quite smooth. After the fire was extinguished and the water was cooled down, although I still don't know how the coke inside was made, the refractory bricks in the stone house burned very well.

　　 Although the mud in the big pit has been poured with a lot of water to cool it down, the internal temperature is still extremely high. For safety reasons, Shi Xiong decided to open the mud seal overnight, and then went down to select coke.

　　 In the evening, after having a dinner of beef stew with white water and salt, Shi Xiong fell asleep with endless thoughts about the food in his previous life.

Not to mention, since this era, there is almost nothing here, that is, the kind of traffic basically relies on walking, communication basically relies on roaring, public security basically relies on dogs, heating basically relies on shaking, and entertainment is basically absent, so it basically relies on hands. Shi Xiong still feels that his life is quite fulfilling in the six basic principles of the era.

　　 Even if there is no food, there is still a pipe after all. Even if you don't have a wife, you still have hands...

　　 The arrangements are full every day, as if there are endless things to do.

This kind of days with a slight lack of regret is a bit boring for Shi Xiong, but when he remembers that he is now starting to paint slowly on the vast land of the North American continent, which is close to white paper, it gives him an unprecedented fulfillment. sense. Even the thoughts of his parents and relatives in his previous life have become much weaker.

　　 Early the next morning, Shi Xiong got up and exercised for a long time as usual.

　　The body is the capital of the revolution. Shi Xiong deeply agrees with this statement.

　　 In previous life dreams, I wanted to train a body of tendons, but I never did it. Since the sun **** gave himself such a great body in this life, he must protect it and say nothing to abuse this body.

　　 After drinking three bowls of corn dumpling pumpkin porridge, Shi Xiong walked out of the house and came to the big pit where the coking was done yesterday. Around this, hundreds of clansmen have been surrounded, and clansmen are coming in continuously.

　　 Everyone wants to know what the guardian-sama has been busy for so many days, digging holes and burning fires, what is it?

　　 smashed through the dried mud, standing on the edge of the pit could not feel the heat inside, and Shi Xiong took the lead to jump out of the pit.

　　 The pit is not deep and not too big. At this time, it is covered with black coke, unburned coal, and half coal and half coke.

　　 After all, this kind of pit is not an earth kiln specially used for coking, so coal is not fully burned in it, which results in almost half of the coal not being made into coke.

　　 Shixiong and several tribesmen picked and picked in the pit, and soon picked out a lot of refined coke.

　　 With the Shixiong demonstration, the people of the tribe also know what coke looks like. In fact, coke and coal are relatively easy to distinguish, so in the middle of the morning, all the coke in the big pit was basically selected.

　　 Ishikuma estimated that it was about three thousand kilograms, which was about the same as his previous estimate.

　　 If it is a special earthen kiln, and the coal is broken into pieces, then I dare not say that it will reach a ratio of 1.35:1, but 1.5:1 is not a problem. In other words, if you put in 10,000 catties of coal, you can at least produce 6,000 catties of coke.

　　 But this is the first time to make coking, and the earth kiln is not used. It is also very good to be able to use this 10,000 catties of coal to produce 3,000 catties of coke. After all, the remaining unburned coal and half of the burned coal can still be used for coking, or used to make fires for heating and cooking. These remaining things cannot be wasted.

Three thousand kilograms of coke seems to be a lot, which is equivalent to one and a half ton of coke. If the coke ratio of later generations of iron smelting also uses blast furnaces is about 0.33:1, that is, 330 kg of coke is required to smelt one ton of pig iron. A thousand kilograms of coke can smelt about five tons of pig iron.

　　 In the future iron smelting industry, it takes about 1.5 to 1.6 tons of iron ore to smelt one ton of pig iron. UU reading www.uukanshu.com these three thousand kilograms of coke can smelt about eight tons of iron ore.

　　 If the average density of hematite is 4, eight tons of iron ore is really not a big deal, and the earth blast furnace is a little bigger than it is enough to hold a furnace...

　　 Therefore, we have to hurry up to build a special coke-making earth kiln to produce more coke in order to be able to make a large amount of steel.

　　 But this time, the coking process gave Shi Xiong and the people involved in the coking process a lot of experience, which is the most precious thing.

　　 With this coking base, the people must have learned a lot. These experiences will play a huge role in the future coking process, which is difficult to measure with food.

　　 The next step is to hurry up and use these refined coke to make steel.

　　 After all, the season waits for no one. If you want to plant the winter wheat quickly, you have to build a batch of Quyuan Plows and Columbine, all of which require a certain amount of steel.

　　 After all, it’s easy to catch the bison, and the wooden parts of the columbine plough and the columbine are easy to say, except that the columbine like the ox nose ring, the columbine plowshare, and the columbine are all made of steel.

　　 Three thousand catties of coke can make a lot of steel.

　　 So Shi Xiong quickly organized people to build a blast furnace.

　　 This kind of earthen blast furnace has no technical content. When China made large-scale steel smelting, such earthen blast furnaces could be seen everywhere in China. At that time, the Chinese people did not have any refractory bricks when they built the earth blast furnace, they were all built directly with mud mixed with bricks.

　　 Now Shi Xiong still has refractory bricks in his hands, so even if he hasn't built the earth blast furnace, he is still very sure.

　　PS: Bow to thank the "Villa Aquaman" 500 for the reward.