(Traveling for a week, very inconvenient, reluctant to change, please understand!) )

After the location of the steel plant was chosen, Feng Yunshan ordered the soldiers of the 18th Brigade to demolish a small number of houses next to Wushi Town, and dispatched soldiers and miners to level the land. Pen "Fun" Pavilion www.biquge.info

At the same time, Li Jianwei assisted Wu Chongyao in transporting all the equipment of the original Krupp Iron and Steel Works dismantled from Prussia to the Beijiang River from Guangzhou, and entered the wharf of Wushi Town, where thousands of people were dispatched to transport several iron cans and other first- and second-class iron-making furnaces and steel-making furnaces to the shore with rolling logs.

Then, the rest of Feng Yunshan clapped his hands, and explained the iron-making and steel-making processes to Song Tiesheng and Krupp, and handed them over to Song Tiesheng and Krupp to deal with, and even the Eighteenth Brigade and the miners were handed over to the two of them to arrange, of course, Li Jianwei stayed to assist Krupp.

The entire iron and steel plant was dominated by Song Tiesheng, who was responsible for the ironmaking and preliminary steelmaking parts; And Krupp is responsible for the refining "tank steel" part in the back. Of course, if Krupp had any suggestions, Song Tiesheng would also listen to them.

After that, Feng Yunshan left Wushi Town and rushed back to Guangzhou with Wu Chongyao, where there was an urgent matter that he needed to deal with.

Soon, at the site of the steel mill, under the auspices of Song Tiesheng and Krupp, a blast furnace with a wide belly, a gradually narrowing neck, and an appearance somewhat similar to a gourd, next to Wushi Town, not far from the bank of the Beijiang River, a place with a firm foundation, stood up.

That's right, this is Song Tiesheng and Krupp jointly presided over the construction, modeled on the style of the Prussian iron-making and steel-making plant, and completely inherited the style of Guiyang Zhenghe Iron and Steel Factory, of course, it also includes some modern iron-smelting processes proposed by Feng Yunshan, and some modifications are proposed.

The first to be built was a blast furnace for ironmaking.

This blast furnace is six feet five feet high, with a blast furnace volume of about 120 cubic meters - much larger than the primary blast furnace of Zhenghe Iron and Steel Plant, which is the largest capacity blast furnace in the Qing Dynasty and even in this era!

If Feng Yunshan was here, he would definitely say that in the future, the blast furnaces below 200 cubic meters in China would have to be forcibly shut down, and the other country was even already using a 5,000 cubic meter blast furnace.

But at this time, 120 cubic meters is already a very large blast furnace. Fortunately, there are many more miners, and some of them are selected, and some people are transferred from the Zhenghe Iron and Steel Plant to make up thousands of steel mill workers, otherwise, there is really no way to cope with the output scale of such a large blast furnace.

This time, many of the ironmaking process sections are actually improved methods provided by Song Tiesheng, after all, he has been in the Zhenghe Iron and Steel Factory, and he is most familiar with the characteristics.

First of all, he found some high-alumina clay, which has a high alumina content, and after grinding, it is calcined with limestone, which is refractory cement; It is directly pressed into bricks, and under the incineration of coke transported from Guiyang, it is fired into refractory bricks at high temperatures.

In fact, if this is like the Zhenghe Iron and Steel Factory, it is not a big problem to use clay to build, then roast with fire, or use green bricks to build, the key is that Song Tiesheng wants to improve its thermal insulation level. Replace the furnace, which is prone to losing high temperatures, with a refractory lining that retains much more heat. Therefore, in the inner lining of the blast furnace, this high-grade refractory material provided by Shengwang Feng Yunshan was used.

In terms of wind blasting, when Song Tiesheng proposed that the wind power is not enough, manpower wind blowing or hydraulic shares are too poor. Krupp easily solved this problem.

Krupp used blowers driven by steam engines pulled directly from Prussia, and the wind was very strong. A single steam engine fully meets the requirements of air blasting. And, with the arrival of the steam engine ordered from the foreigners, Krupp could make a large blower and connect it to the power of the steam engine.

In terms of air preheating, this is extremely common in modern steel production. But at this time, Europe has not thought about this aspect at all, and there is no way of thinking about it. When Krupp first heard Feng Yunshan talk about this method, he was excited, excited, expectant, in short, there were all kinds of moods, and now that he was going to really implement the steel plant, he didn't know how to do it.

Fortunately, Song Tiesheng is here. Although he didn't know many esoteric principles, he remembered all the processes of Zhenghe Iron and Steel Factory. So, with his help, soon, the air preheating was solved. And, unlike the Zhenghe Iron and Steel Plant, the air preheating here is better because of the refractory material. The air, which could only be preheated for less than 300 degrees, can be preheated to nearly 4 or 500 degrees.

In addition, outside the huge blast furnace body, a free-standing maintenance tower with a solid iron frame is built with a support point on the ground. In addition, the steam engine is used to drive the iron chain plus the chute, the pulley and the pulley group to form the top feeding system, which is also much improved compared with the Zhenghe Iron and Steel Plant. This is also a helpless thing, Zhenghe steel plant does not feed much, but also use the manual lever to dump the ore in the furnace, but now such a large output of the blast furnace, this backward method can not be satisfied, so a new continuous similar to the belt conveyor of the same feeding method has been developed.

The others are similar to the Zhenghe Steelworks. It's just that the scale is much larger than that of Zhenghe Iron and Steel Plant.

Song Tiesheng transported 100,000 catties of cement from Guiyang to build a material yard and a silo.

On the steelmaking side, the alkaline open-hearth steelmaking process of Zhenghe Steelmaking Plant is now the best steelmaking method in the world. The output is large, the operation is simple and convenient, and it can also remove the harmful minerals phosphorus and sulfur in the steel and improve the accuracy of the steel.

However, the steel produced by Zhenghe Iron and Steel Plant is estimated to have a carbon content of more than 1 percent, and although all hardness is strong, the plasticity and toughness are not enough.

The reason why Krupp's "tank steel" is excellent is that it has a low carbon content, simply put, it is of high purity, but it is not the purest kind to the extent of wrought iron, which happens to be in the middle. In addition, it is estimated that it is Krupp's secret formula, and some chemical elements are inadvertently added, which happens to make up the composition of a certain alloy steel, so the performance of Krupp's "tank steel" will be so good.

But it is not that this "tank steel" method is an advanced steelmaking method, its steelmaking process is actually just a relatively backward crucible frying process, but it may be because the frying is more fine, the carbon content in the steel is reduced, plus the added chemicals, fried into alloy steel, which can cause the Krupp cannon that shocked the world in later generations.

Therefore, the steelmaking process Krupp and Song Tiesheng did not change, but the power of the blower equipment was replaced by a steam engine drive.

In order to increase the temperature of the smelting chamber of the open-hearth, this time Song Tiesheng made the section of coke to produce coke gas in advance. In addition, the fan powered by the steam engine is used to drive the coking gas by rotating the fan impeller, so as to increase the concentration of coking gas and increase the calorific value of combustion, so as to achieve the purpose of increasing the temperature of the melting chamber.

According to Song Tiesheng's estimate, although the gas concentration is only increased slightly, the smelting chamber can be raised to more than 1,600 degrees. In this way, the effect of decarbonization will be even better.

According to the explanation of the Holy King, Song Tiesheng decided to conduct an experiment with Krupp, preparing to greatly reduce the carbon content directly in the steelmaking stage, and then separate a part of the molten steel into the "iron tank", and then Krupp added his so-called secret formula, and then Krupp could directly refine Krupp steel. (To be continued.) )