Can you make good steel with coke? Definitely not, coke is not used in steelmaking, and coke is used as fuel in blast furnace ironmaking. To put it simply, coke, iron ore and limestone are stacked in the blast furnace layer by layer according to the proportion, and the iron oxide in the ore is reduced to form molten iron by using the heat of coke combustion, which flows to the bottom of the blast furnace, and the remaining ore impurities are discharged from the higher slag outlet.

In this process, the iron ore and the fuel are mixed together, and the silica can be discharged by the limestone reaction, but other impurities, especially those carried in the fuel, cannot be discharged.

After dry distillation, coal becomes coke, and most of the impurities have been discharged, so the iron smelted with coke will be relatively much purer, and it is better to control the sulfur, phosphorus and carbon content, which is of vital significance for continuing steelmaking in the later stage.

Its practical charcoal can also be used, but charcoal has to be cut down in large quantities. During the Industrial Revolution, the British cut down all the trees on the island to make iron. Moreover, charcoal is not as high as coke and is easy to manufacture, so Hong Tao decided to do it in one step, directly coking first, and then pondering the matter of steelmaking.

Coking is not just for blast furnace ironmaking, its by-products coal tar and gas are also invaluable goodies. Now it is impossible to drive warships all over the world to search for oil, and the inland produces oil, but it is only heard that the specific production, origin and transportation conditions are not clear.

It is estimated that before seeing tangible benefits, the emperor and his ministers will not invest huge sums of money to build a special oil line for themselves. Therefore, if you want to use open-hearth furnaces to make steel, you have to find a liquid or gaseous fuel that can replace heavy oil.

Coincidentally, there are two suitable types of main by-products of coking, coal gas and coal tar. Coal gas can be used directly, and after coal tar is pickled, alkali washed and fractionated, gasoline, kerosene, diesel, asphalt, paraffin and other compounds are not dreams.

So what do centrifugal blowers and distillation kettles do? Needless to say, the blower is an important component in ironmaking and steelmaking, and can also be used for forging and other work. Let's get a small one to see the effect, and after getting familiar with and improving, you can get a large blower driven by a water wheel at any time.

The distillation kettle has nothing to do with the smelting industry, but it can purify alcohol. This thing has many uses, diluted as a life-saving panacea, and a chemical raw material with many uses.

As for when these things will be used and what they will be used for, Hong Tao actually has no mature ideas. He is still the old habit, when he is idle, he can tinker more with it, who knows which cloud has rain, and he can use it when he is busy.

The most important thing is that coking does not need to be established separately, Wujin Xing originally played coal processing, and it is too logical to do honeycomb coal piggybacking hand coking, and the site and personnel do not need to be found separately, the only problem is whether this Zhongxing furnace is good or not.

Theoretically, it's no problem, but this thing was used in later generations until the 70s and 80s. But in fact, any small parameter change will affect the quality of coke, and who can pack the ticket in the end.

Three days, just three days! Without delaying the progress of the water mill and water mill project, Peng Da built the centrifugal blower. This time he didn't dare to carve a painting on it, but that doesn't mean that the pursuit has been lowered. The edges and corners of each piece of wood were sharpened to a smoother finish, and three thick straps of fine cowhide were made.

"Lao Peng, I've only heard that there are tabes, but I've never heard of tabes, and today you opened my eyes!" What can Hong Tao say? Scolding people again? I didn't think it was appropriate, so I could only sigh and say something weird.

"If the official is too simple, the villain also made a pair of wooden boxes, and only a few wooden pins need to be pulled out to pack the boxes. This thing weighs no more than 50 catties, and a donkey can be camelped. ”

Peng Da didn't understand what was a chatter or a hand, he was used to not understanding the words of the horse, so he waved behind him, and immediately a few little apprentices carried up two big wooden boxes. Obviously it is also newly made, and it is carved with flowers and plants, and if you paint it dozens of times, there is no problem as a dowry.

"Listen to you, you must be serious about learning the craft from the master, but you are not allowed to learn his carving skills, and whoever dares to carve on the object in the future will chop off whose fingers!"

Stubborn, this is the comment given by Hong Tao, but for the sake of how fast and good this blower is, don't scold, it's useless to scold.

Just looking good doesn't mean it's easy to use, how to try it? It's easy to do, next door to the Water Tiger Wing Barracks is the shipyard, which has a ready-made blacksmith workshop, and it is a mule or a horse to come out and slip around.

"God...... God...... He is worthy of being a master craftsman in the palace! "The colt had a good relationship with his boss, and the generals naturally did not stop him, and the centrifuge was successfully installed on the blacksmith's furnace. In less than five minutes, the blacksmith bowed his head to Peng Da and admitted defeat, convinced.

There is no need to continue testing with iron, just look at the color of the flame and charcoal and they will know the approximate temperature inside the furnace. This new type of blower is not only labor-saving, but also hard.

"Don't arrange it randomly, this thing is the unique skill of a big official, how can it be counted on the head of a villain. Quickly remove it and pack it, don't break it! ”

Peng Da also obeyed, although he did not know how to black, he also knew that temperature was very important to the blacksmith. Since it is so important, it is natural that outsiders cannot learn it. The kang can be sold well, and the blower can also be used, and he is also wondering if he can mix a title to glorify his ancestors.

"Hey, don't dismantle it yet, just keep it here for use, and in the future, Ugin will inevitably have trouble with others. It's not perfect, so when you have time, you can figure out how to improve it, whether you can make it bigger, or work together like a drain. In addition, from the flying eagle to the abacus, as well as the water mill, the water wheel, the water mill, the blower, all the objects and work that pass through your hands must be recorded in detail with pictures and pictures, so that people can understand it. ”

Hong Tao didn't create this thing for the sake of it, and he didn't plan to apply for a patent, so how to know the advantages and disadvantages and how to improve it if he didn't use it.

At this time, the craftsmen were good anywhere, but they were too heavily influenced by the idea of starving the master to death by the apprentices of the church, and paid too much attention to concealing their skills, which was not conducive to the spread and perfection of knowledge.

If there are good things that are hidden and not shown, in case one day they die, this set of advanced experience that has gone through dozens or hundreds of years and summed up by several generations or more than ten generations will be completely wasted, and nothing will be left.

“…… Villain...... The handwriting is not good...... "This request of the colt is actually not excessive, but Peng Da's expression is extremely embarrassing.

"Official, my handwriting is worse, this is not ...... Lian'er, after going back, told Xu Donglai that he had an extra job, responsible for recording everyone's dictation. With children, it would be their privilege to meet the people they would strive to be from an early age. Don't be afraid, every word and sentence you say will be printed in a book, and then treasured in the Zhaowen Pavilion, Jixian Pavilion, Si Tianjian and Guozijian ** descendants to study carefully, draw nourishment and inspiration from it, and take a further step on it. This is more important than Peng's big abacus, big head water and any title. Future generations may not remember a mad colt, but they will remember you, because they can't do without what you are doing now for food, clothing, shelter and transportation......"

At first, Hong Tao didn't react, but he quickly understood what the reason for that expression was. The craftsmanship of these craftsmen comes from word of mouth and painstaking training, and they know some of the characters, and that is also because they have read too much, but they can write very little, and they are ashamed of it.

Even if they can carve exquisite copper molds according to gourd paintings, even if they can build printing presses that can change the whole world and make Wang Anshi and Su Shi fall in love with them, they are ashamed that they don't know much and don't write much.