Alien Lord

Here in Chu State, a blast furnace with a volume of 15 cubic meters is larger than any blast furnace in other places. However, if such a blast furnace is in the 21st century, hehe, it would be a joke. ? Huo Ranwen ?? ?. r?a?n??e?

If Lin Ze really builds such a blast furnace by then, I believe it will be 'famous' all over the country in no time!

Now, Huaxia's blast furnaces with a capacity of less than 200 cubic meters must be shut down forcibly, while overseas, such as the Japanese country, are even using blast furnaces with a capacity of 5,000 cubic meters.

Technology is progressing so fast now!

Of course, the refining of the blast furnace does not mean that there is no technology at all, and there are still difficulties.

The blast furnaces here in Chu State are built directly with clay or red bricks. There is no big problem with the blast furnaces built in this way, but the disadvantage is that the life span is extremely short.

The temperature during ironmaking is extremely high, and ordinary clay or red bricks cannot withstand the high temperature. After a period of use, the blast furnace built in this way has to be discarded directly.

Lin Ze didn't want the blast furnace he built to be of such low quality, so he directly prepared to use high-grade refractory materials for modern steelmaking furnaces in the lining of the blast furnace.

Don't look at the four words of modern blast furnaces, and think that the technical content is extremely high, and it seems that the feudal society could not get it at all, but in fact, it is not the case.

The technical content of modern high-grade refractory materials is extremely low, as long as the raw materials are found, they can be easily manufactured.

So what are the advanced refractory materials used in modern blast furnaces?

Very simple, it is actually high alumina clay.

This thing has a high alumina content, and after being ground and calcined with limestone, it is refractory cement; it can be directly pressed into bricks, and can be fired into refractory bricks at a high temperature of 1300 degrees.

Having found the high alumina clay, all that remains is to make the high alumina clay into refractory bricks.

Even a child can do this.

In addition to the replacement of refractory materials, Lin Ze also made some changes to the blower of the steelmaking furnace.

When making iron, because of the need to increase the firepower, some blowers are needed.

Modern blast furnaces are dedicated fans,

Powerful, convenient and safe, but in Chu State, the blowers used in the blast furnaces are still very old blowers, the simplest ones are bellows made of wood.

There are two types of such bellows, one is accordion-like, with wooden boards on the upper and lower sides, and folded leather around it. There is a valve in the middle of the box, and the wooden drum in the middle is directly pushed and pulled by manpower.

The first kind of organ-like bellows is used for a long time, and the leather will age. In this case, it is easy to be dangerous.

You can imagine that when you are making iron, the blast furnace is in need of family style. However, because the blower is aging, it is too late to replace it. At this time, there will inevitably be insufficient air supply. The blast furnace for ironmaking may fry the furnace.

And if the blast furnace is really fried, the scarlet hot molten iron with a temperature of up to a thousand degrees will flow out directly in the blast furnace. coke.

This is more than that. Once the blast furnace explodes, the power is equivalent to a huge bomb. Anyone who is within a hundred meters of the blast furnace will be in danger. Therefore, don't look at the blower, which seems to be small. It seems to be useful, but it is actually very important when making iron.

Therefore, for the sake of safety, Lin Ze directly eliminated these organ-like blowers and directly replaced them with valve push-pull blowers. Such blowers are relatively safer, and, most importantly, such blowers can be powered by water trucks.

Utilize the force of the eccentric wheel to directly change the rotary motion into reciprocating motion, and then provide a steady stream of power to pull the blower.

Because of sufficient water power, Lin Ze directly arranged five wind boxes and five air ducts around each blast furnace, and made three spare wind boxes to prevent accidents at that time.

It is easier and safer to replace the hand-pulled blower than the organ-type blower.

Lin Ze also referred to some technologies of modern blast furnaces, and directly merged the last section of the inlet duct before entering the furnace with the blast furnace. There is a fire pool isolated from the inlet duct under the inlet duct, which can be filled with charcoal or Coal is used to add air, and the air is directly heated to 800 to 1,000 degrees in the air intake before entering the furnace.

Air preheating is the most critical step in improving ironmaking efficiency in modern steel production. This technology was only invented in modern times. In ancient times, there was no technology that paid attention to it at all.

Because this technique is extremely simple, Lin Ze moved directly to the blast furnace.

In addition to the huge shaft of the blast furnace, Lin Ze also used solid wood to build a free-standing maintenance tower with its support point falling on the ground.

As for whether the inspection tower built with wood is strong, hehe, there are many kinds of trees on the mainland of China that are as strong as steel, so don't worry about the quality of the inspection tower built with wood.

In addition, Lin Ze also used chutes, pulleys and pulley blocks to form a furnace top feeding system, which greatly facilitated the filling during ironmaking, accelerated the speed of ironmaking, and reduced the risk of feeding.

Of course, the molten iron first produced by such a blast furnace is pig iron with high carbon content and many impurities, but such pig iron can actually be used to cast large iron parts, such as iron anchors, hammers, general farm tools, etc. thing.

Therefore, Lin Ze directly connects a groove outside the taphole, which is usually closed and opened if necessary.

Once this groove is opened, the red-hot molten iron in the blast furnace will be poured directly into the outer mold, and then cast into large iron pieces.

Of course, there is really no problem with such pig iron being used to smelt farm tools and the like, but it is still a little bit worse when it is used to smelt weapons. Therefore, Lin Ze still needs to smelt these pig irons into steel.

For this reason, Lin Ze built a large iron frying furnace directly next to the blast furnace to smelt pig iron into steel.

The shape of this frying iron stove is a bit like a cup of kung fu tea, with a large upper end and a smaller lower end. It is a reverberatory furnace with flame and iron separated. It is also integrally built with refractory bricks used in blast furnaces. The bottom of the hearth is sunken in the middle, surrounded by arched furnace walls, the lower part is the combustion chamber, and the air inlet channel is at the bottom of the combustion chamber.

In fact, the structure of this frying iron furnace can be regarded as a three-story building, the third floor and the second floor are isolated from each other, and there are multiple movable iron fences between the first floor and the second floor.

When in use, the molten pig iron that has already been connected is directly poured back from the blast furnace into the third floor, and then directly spread coal on the second floor, and then ignite it, let the coal burn on the iron fence, and heat the pig iron above the third floor.

When the burning is almost enough, the residue left after the coal burning can be easily removed by turning over the iron fence, so that the charcoal residue will fall directly into the slag removal room on the first floor, and wait until the carbon on the iron fence After all the slag has fallen to the first floor, the iron fence can be laid flat, and then coal can be added to it from the coal inlet inclined at 45 degrees downward.

It can be said that the design of this iron frying stove is extremely superb, making the process of iron frying extremely simple and effective.

The power used in the iron frying furnace is the same as that of the previous blast furnace ironmaking, and it also uses hydraulic blasting. However, it is different from the blast furnace in that a tall chimney is built on the side of the iron frying furnace to discharge waste gas.

(Actually, Lin Ze wants to use modern machines to provide power and help iron smelting, but modern machines either need electricity, or diesel or gasoline. Lin Ze really can't get these things out now, so Lin Ze When Ze was making iron, he could only use water power.

Of course, some people here will also say that Lin Ze installed some wind turbines outside his house before, and after Lin Ze’s research, these wind turbines have been directly reduced a lot and their power has also increased A lot, in this case, isn't it possible to directly provide electricity?

Hehe, that is indeed the case, but, if you think about it, would a place like an ironworks require a small amount of electricity? ! Moreover, for a large factory like an ironworks, the number of wires that need to be installed must be astronomical. Lin Ze would never have thought that he would come to the mainland of China, so how could he prepare so many wires.

Finally, and most importantly, Lin Ze does not have any electrical maintenance workers on hand. Since the ironworks use electricity as power, some electric maintenance workers are needed to ensure that there will be no problems with electricity transportation.

However, there are no electric maintenance workers in a feudal society like the state of Chu, and there are not enough electric maintenance workers. How dare you directly electrify the ironworks with your bare hands and feet? !

Therefore, although Lin Ze has some high-efficiency wind power generation equipment in his hands, it is completely impossible to get them to be used in ironworks in a short time. )

In ancient China, there are records about frying steel. The frying iron in the iron frying furnace is stirred by manpower. When frying iron, there is always one or several strong and strong men by the side of the iron frying stove, holding the root cooked in both hands. The wrought iron rod made of iron, sweating like rain, constantly stirring the wrought iron rod back and forth in the wok iron furnace.

It is true that steel can be smelted in this way, but it is not only dangerous, but also extremely inefficient. Most importantly, the quality of the steel produced in this way is not high.

After all, manpower is limited, so even the strongest person can’t last for half an hour continuously frying the pig iron in the iron furnace with wrought iron rods, and at this time, the pig iron may have just reacted to the most critical moment At this time, once the frying is stopped, the reaction of the pig iron will not be complete, thus, the quality of the steel will not reach the best.

Therefore, whether it is for the safety of personnel or to improve the efficiency of steelmaking, Lin Ze directly introduced hydraulic power to help fry iron. (..)