Chapter 2484 Ready

As for the iron smelting shops on the mainland of China, hehe, they are just bellows.

There are two types of such bellows. One is like an accordion, with wooden boards on the top and bottom, surrounded by folded leather.

The first type of bellows will wear out after a long period of use. Lin Ze is afraid that it will be too late to replace the bellows. As a result, the blast furnace will be directly fried due to insufficient air supply. If that is the case, the hot molten iron in the blast furnace will flow out instantly. The workers nearby all got into coke.

Therefore, it is better not to install such a bellows Lin Ze, it is too dangerous, so in the end, Lin Ze decided to install the safety valve push-pull on the blast furnace side, using the animal power of the fire armor cattle to provide sufficient power, and then use the eccentric The power of the wheel turns the previous rotary motion directly into reciprocating motion.

Of course, these modifications of Lin Ze are just based on the scriptures, and they are all based on the records in the book. The real refining, installation, and debugging are all done by Hu Yan, a master craftsman.

In this way, four wind boxes and four air ducts were arranged around the entire blast furnace, and several spare bellows were made to prevent accidents.

In addition, the last section of the blast furnace inlet duct before entering the furnace is directly joined together, and there is a fire pool isolated from the inlet duct below, which contains burning coal. In this way, the outside air will be absorbed before entering the furnace. The coal here is heated to 800 to 1,000 degrees, which is actually the air preheating technology.

Air preheating is the most critical step in improving the efficiency of ironmaking in modern steel production. In Lin Ze's impression, at least before the Qing Dynasty, no country in the world was able to master this technology.

This is the same in mainland China. The society here is even more backward, let alone mastering such technology.

Outside the huge blast furnace body, Hu Yan also built some support points with solid wood, which are actually some independent inspection towers that fell on the ground. In order to save labor and convenience, Hu Yan also used chute, pulley and pulley block to form the feeding system on the furnace top.

The molten iron smelted in the blast furnace is pig iron with high carbon content and many impurities, but it can already be used to cast large iron parts, such as iron anchors and anvils, so Hu Yan added a groove outside the tap hole, It is usually closed, and if necessary, it can be opened directly. After that, the hot molten iron inside will be directly poured into the outer mold through this side, and finally large iron pieces can be cast.

Hu Yan also built a large frying iron furnace next to the blast furnace. In fact, the shape of this frying iron furnace is a bit like a cup of Kung Fu tea. It is a reverberatory furnace with flame and iron separated. It is also built as a whole with refractory bricks. 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.

Its current structure 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 and second floors.

When it started to be used, the molten iron flowed directly from the blast furnace to the third floor. At this time, the coal on the second floor was lying on the iron fence and burning, which continuously heated the molten iron upstairs. After the coal burned, you can easily turn over the iron. The charcoal slag on the fence fell into the slag removal room on the first floor.

Afterwards, the iron fence is laid flat, and coal can be added to it from the 45-degree downward coal inlet, and then continue to burn, just like this, repeating continuously, until the ironmaking this time is over.

It is also animal-powered blasting, but here is different from the blast furnace over there.

It also has a tall chimney built on its side.

Now because of the lack of power facilities, even the steelmaking plant Lin Ze is now building still uses manpower to stir the iron furnace. There is always a strong man by the furnace, holding a wrought iron Fry the iron rod, stirring back and forth sweating like rain.

However, in the end, Lin Ze found that the effect of doing so was still too low. Lin Ze, who understands the powerful capabilities of modern machinery, obviously would not allow workers to do this kind of work that is tiring and would seriously damage their own health. Hu Yan made a bracket on the top of the stove, with a large round roller hanging in the middle, and three wrought iron rods extending obliquely towards the hearth below, and the fire armored ox is still providing power, so there is a simple, However, it is an extremely practical mechanized iron frying equipment.

In the past, pig iron was cooled into ingots and then heated to smelt mature iron; the technology used by Lin Ze now is to directly fry the molten pig iron from the blast furnace directly into mature iron. The method that did not appear until the Ming Dynasty, for example, was recorded in "Tiangong Kaiwu" by Song Yingxing of the Ming Dynasty.

However, these technologies are now directly used by Lin Ze.

Although it is far worse than modern technology, it is just right for Lin Ze to use now.

Once pig iron is smelted into mature iron, it can be used directly to make farm tools such as hoes and shovels. Of course, the production process requires continuous forging, carburizing and quenching by blacksmiths. Wrought iron is soft and malleable, and it is easy to process Excellent performance.

There are quite a lot of steelworks and other productions, so Hu Yan directly built a dozen forges lined up on one side. The basic structure of this thing is nothing like the forges used by all rural blacksmiths to repair agricultural tools such as hoes and shovels. The difference is that it needs to be enlarged and thickened.

The increase is to forge large iron parts later, and the thickening is for heat preservation. After all, it is used for a long time. Such a design can also save fuel.

Needless to say, the animal power of the Huojia ox is still used here. Of course, compared with the blast furnace and the iron furnace, these are the little things of the grandchildren.

Not only that, Lin Ze and Hu Yan built a simple animal-powered forging hammer next to each forging furnace, and under the forging hammer was a thick anvil, which was cushioned with a thick oak wood plinth. Below is the base of cement and stone casting. Such a multi-layer composite force-bearing structure can withstand the huge impact force of the forging hammer falling.

These forging hammers, those big forging hammers weigh three hundred catties, have a stroke of three feet, and drop the hammer about 50 times per minute; the small ones weigh seventy to eighty catties, have a stroke of two feet, and drop the hammer about 150 times per minute. Large forging hammers are used for rough machining, while small forging hammers are used for final finishing.

In fact, with the current technical ability, this finishing process is not very refined. After all, it is still hammered. After all, the processing technology of such a rough animal-powered forging hammer is actually the same as that of the blacksmiths in the blacksmith shop. There is not much difference between hand hammering and hammering. If there is a difference, it is only that the efficiency has increased many times.

After all, manpower is limited, and Huojianiu can always output animal power.

It's a pity that the current technical conditions cannot be stamped, let alone precision forging, otherwise Lin Ze would really have metal machine tools available.

Of course, if Lin Ze let Hu Yan and the others study it wholeheartedly, it would really be possible, but in the end Lin Ze gave up after thinking about it.

It's nothing for you to be one step ahead. If you really want to be more than a dozen steps ahead, others will regard you as a monster. At that time, Lin Ze may not have a foothold on the entire Shenzhou Continent.

Think about it, if all sects, Nascent Soul masters, and even stronger powerhouses come to trouble Lin Ze, will Lin Ze still have a way out? !

Blast furnaces, blowers, animal-powered forging, iron-frying furnaces, these things are still within the cognition of ordinary people, but if they really want to bring out more modern machine tools, I believe that even Hu Yan, a master craftsman, will be a head-scratcher. If that's the case, I really don't know what problems will arise.

Lin Ze used high-alumina clay to fire a lot of large earthen pots. These things are very simple to make. Lin Ze quickly found a few people who had worked in porcelain kilns before. For these veterans, such things are It was so easy, these people took this task without hesitation.

It is also very simple to make, that is, first crush the clay, add water and sieve it into fine mud, then shape it by hand on a rapidly rotating wooden plate like a plastic porcelain body, and finally put it in a special high-temperature kiln for ten hours. The pot is fresh out of the oven.

At the beginning, many people didn't understand. For example, Xu Sheng was confused. Can these earthen pots be used to make steel? That's not the same as stir-frying.

In fact, Xu Sheng was right, these are what Lin Ze used to fry steel.

In the ancient steelmaking technology, it is said that there are mainly three processes of frying steel, steelmaking and pouring steel.

Fried steel is actually fried iron, which can be produced by Lin Ze’s designed iron frying furnace. In fact, it mainly produces wrought iron, and there are also a small amount of medium and low carbon steel, and the quality is very unstable;

Hundred-smelting steel is obtained by using fried steel as a raw material, which is repeatedly folded and forged after heating, or repeatedly stacked and forged with several raw materials with different compositions. Not low;

As for the method of pouring steel, there is a very detailed record in "Mengxi Bi Tan": "The so-called steel forged iron in the world uses soft iron to bend the plate, but uses pig iron to trap it and seal it with mud. The forging order When it comes together, it is called Tuangang, and it is also called Guangang."

These three processes are all good, but none of them are suitable for large-scale industrial production.

What Lin Ze wanted to refine this time was actually crucible steel.

Speaking of the crucible steel, it was actually invented a long time ago, and it was invented in the Spring and Autumn Period. Since the invention of the crucible steelmaking method, it was the most prosperous in the Han Dynasty. The sharp ring-shoulders led to the invincible Han army, the glorious victory of the Xiongnu from the Mongolia///ancient// plateau to Europe/// Europe, and the "Han offenders, although Far away must be punished" great reputation!

Maybe it was due to the wars of the five random Chinese, or some other inexplicable reasons. The crucible method was lost during the Northern and Southern Dynasties. Instead, flowers bloomed inside the walls and fragrant outside the walls, and developed in other countries. Zigang, the knives//swords and other weapons made are extremely sharp, and have cut off the heads of countless crusaders//.

Blast furnaces, waterwheels, frying iron furnaces, workers' dormitories, and cooling water towers have all been built one by one. Now it can be said that everything is ready, and the only thing left is east wind.

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