King of German Mercenaries

The next morning, Marin and Hoffman Sr. talked about buying coal from the family mine. In this regard, the old Hoffman naturally did not object. But on the price, the two sides have differences.

It's not that old Hoffman thinks Marin's price is too low, but too high. Old Hoffman felt that since his son wanted it, he naturally wouldn't think of making money. Therefore, he proposed that 1 charteron coal should be paid for 1 shilling for the operating cost. However, Marin was not short of money and wanted to help his family, so he offered a market price of 2 shillings per chartron.

The father and son fought back and forth, and in the end, it was Mrs. Mary who made the decision-according to the compromise plan of the father and son, 1.5 shillings per charteron. In this way, the family can earn some money, and Marin can also save a lot of money.

"Marin, what do you want coal for?" asked Mrs. Mary curiously.

At present, Europeans are more popular with burning wood, but not burning coal. In particular, firewood is popular in European fireplaces. Coal burners, um, are easy to poison people at home... and only special industries such as metallurgical industry use coal in large quantities.

Thinking of gas poisoning, Marin immediately reminded his family:

"Dad, mom, remember not to burn coal in a closed room!"

"Why?" asked Mrs. Mary curiously.

"My teacher said that coal burns in a closed room, and it is easy to produce toxic gas, which can cause people to suffocate to death..."

"What? Is that so?" Everyone was frightened.

Speaking of which, Hoffman Manor has now switched to burning coal for cooking. Even Mrs. Mary has plans to use coal instead of wood as the fuel for the indoor fireplace. Now, as soon as Marin said it, Mrs. Mary was frightened.

"It's true, the younger brothers and sisters are still young, don't burn coal in the room where they stay to avoid accidents."

"Hmm-" Mrs. Mary nodded quickly, nothing was more important than the safety of the child.

"By the way, Marin, can you find a way to solve the problem of coal dust?"

"Pulverized coal?" Marin said he didn't understand.

"It's the powdered coal dug up!"

"Is there a problem with this?"

"Of course, people burn coal now in lump coal. Powdered coal is not popular because it always burns out, so it can't be sold. People from the Wiggins Chamber of Commerce only want lump coal..."

Hearing old Hoffman's complaint, Marin wanted to laugh. In fact, powdered coal burns more completely than lump coal and has a larger contact surface with air.

But there is a key point in the way people burn fire in this era. For example, when coal is burned in later generations, pulverized coal will be blown into the furnace. Therefore, the pulverized coal burns very completely and has a high calorific value.

However, in this era, coal is shoveled in with a shovel. As soon as the shovel went down, the pulverized coal was thrown into the furnace, which easily covered the original burning coal. If the pulverized coal covers the original burning coal, it is easy to isolate the air and cause the burning coal to go out of flame.

The coal block is different, there is a large gap between the coal block and the coal block. Therefore, when a shovel of coal is shoveled in, there is a large gap between the original burning coal and the newly added coal. Therefore, there is no fear that the coal will go out.

Therefore, the ancients preferred coal lumps rather than pulverized coal. Even in modern times, pulverized coal needs a professional blower to blow into the furnace, so that the pulverized coal can be fully utilized.

In the folk, people are still used to using coal. But much of the coal mined in coal mines is pulverized coal. So, everyone thought of a way to process the coal powder into lumps.

Thus, briquettes were born. Coal briquettes are spherical coals made by mixing pulverized coal with water and yellow mud. In this way, the pulverized coal becomes lump coal, which can be easily burned again.

Of course, there is a more advanced way - briquettes...

When the briquettes are burned, because the contact surface is not enough, the combustion utilization rate is low, and even the combustion is not complete. The emergence of honeycomb coal,

This greatly improves the efficiency of coal combustion.

There are more than a dozen holes on a piece of briquettes. The walls of these holes are the contact surfaces of coal and air. Buffalo briquettes greatly improve the combustion efficiency and also improve the combustion degree of coal. Because, the briquettes often burn incompletely, resulting in wasted fuel.

Marin felt that the briquettes were easy to use. However, there is no need to promote briquettes. This is something you can use for your own use. And selling honeycomb briquettes can't be much more expensive than briquettes. There is no need to pursue combustion efficiency, and it's okay to waste a little bit.

Therefore, Marin directly asked Old Hoffman to use the ancient method of "shaking briquettes" that he had seen in his previous life to process the pulverized coal into briquettes and sell them.

As for how to shake the briquettes, it is easy, and Marin personally showed the workers the technique of "shaking the briquettes". It is to first mix the coal powder, water and yellow mud, and stir it into a paste. Then, cut into pieces, shake them in a wooden sieve, shake them into ping pong balls, and then dry them in the sun. Then, the briquettes are ready.

The technique of making briquettes is simple, as long as enough people are dispatched, briquettes can be produced. Although it is not as efficient as the machines of later generations, it is also considered waste. At least, pulverized coal, which accounts for a small half of coal mine production, has no use.

In fact, the Hoffman coal mine is not particularly troubled by the problem of pulverized coal. Because, the Wiggins Chamber of Commerce needs a limited amount of coal. This also led to the fact that the Hoffman coal mine was not in a hurry to deal with the coal dust.

However, as more and more coal was mined in coal mines, more and more coal powder was piled up, and it was almost a hill. So, out of the idea of ​​getting rid of these obstructive coal dust, old Hoffman asked Marin for a solution.

Unexpectedly, Marin really has a way. But in fact, Marin did not reveal the better honeycomb technology. However, Marin felt that it was more troublesome to make briquettes.

Because, the 12 holes of briquettes must be consistent. Otherwise, the holes of the upper and lower briquettes cannot be aligned. This will affect the combustion.

And the alignment of 12 holes, in this day and age, is very difficult. Unless it came out of a mold. However, in this era, there is no machine to press the briquettes, and the only way is to manually use the mold to press it piece by piece.

On the other hand, in the newly manufactured mold, the holes may not be aligned with the holes of another mold, which cannot meet the unified standard. Therefore, Marin, who was too troublesome, simply released the highly versatile briquettes technology first, which could also be considered to help solve a problem for the family.

In fact, the briquettes technology is really not a technology. If Europeans have been using coal for a long time, it should be easy to think of. However, Europeans did not use coal for a long time. Even now, the European steel industry is still using a lot of charcoal. The application of coal is small and the time is short, so not many people study how to use pulverized coal...

And, after listening to the prospector's report on the mine, Marin poured money into the 2,000-acre hilly area next to the Hoffman estate.

According to the prospector, the coal mine in Hoffman Manor is actually a branch of the large coal mine underground in the hilly area nearby.

Marin is a local tyrant now. Since he knows where the main vein of the coal mine is, can he let it go? So, when the money goes down, the hills are in hand. It's not expensive, only 2,000 gold coins, an average of 1 gold coin per acre. Because this hill can't be cultivated, the grass doesn't grow well, and it's worthless at all. And the officials of the country of Mark did not know that there were large coal mines buried under the hills... Besides, the Hoffman family also paid taxes when they sold coal...

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