Chapter 1837: Briquettes

In order to cooperate with the publicity plan, Beihai began to build brick-burning clay kilns. These brick kilns are tall vertical kilns, and the fuel used is not firewood, but the peculiar coal briquettes of Beihai.

These spherical coal **** made of coal powder may not be as efficient as honeycomb coal. However, in large-scale production, it is much better than honeycomb coal. Because the load-bearing capacity of honeycomb coal is poor, and the requirements for placement are high, it is necessary to look at the eyes, which is very inconvenient for production. Therefore, large furnaces and clay kilns prefer the simple and crude fuel such as briquettes.

However, the problem with briquettes is that the burning temperature is too high ...

When using firewood burning kiln, the temperature is generally not very high, generally reaching 700 to 1000 degrees will be sky-high. As it happens, the temperature range of burning bricks is between 900 and 1100 degrees. Above this temperature, overfire bricks (also called overfire bricks) are burned out, and various deformations are irregular.

When using firewood to burn earthen kilns, the temperature generally does not exceed 1100 degrees, only worrying that the temperature is not enough. But the use of coal is different, it is so easy to burn ...

It should be known that coal can be burned to the level of 1700 degrees or even 1900 degrees with sufficient blast. Therefore, using briquettes to burn bricks, controlling the temperature has become a big problem.

Later, Marin thought of a way to measure the temperature with copper wire ...

Marin remembers that the melting point of copper is 1083 degrees, which is very close to the upper limit of 1100 degrees for burning bricks. So, he thought of a way to make people use a clip to hold a small piece of fine copper wire and dive into the furnace. If the copper wire melts, it is overfire. Does not melt, naturally is normal ...

Of course, this is only used in the preliminary test. If the temperature is measured with copper wire every time, there is a lot of copper loss. At the beginning, the use of coal to burn bricks was a variety of situations, and there were a lot of strange fire bricks. Later, after losing a lot of copper wire, some craftsmen who were good at burning bricks transformed the road and added some vents to avoid the kiln temperature being too high and finally controlled the temperature.

Then, Marin asked people to compile a work manual, using the mature coal ball shaft kiln as a standard, and began to promote it, letting people work according to the standard guidance steps. Sure enough, many cheap bricks were easily fired.

Be aware that coal has a low cost and a large amount of heat, which is much more convenient than using firewood. For publicity, Marin specially built several briquette brick kilns near Emden Port to burn bricks all day long for outsiders to see. Although polluting the atmosphere, Marin doesn't live in Emden, just ignore him ...

As bricks and carts continue to be pulled out of the briquette kiln near Emden port, they are shipped to the sea in front of the world (said to be shipped to the Americas).

In fact, the brick kilns in Emden Port are only exemplary. The real output is still in Cape Breton Island.

The local area is close to the Sydney Coal Mine, and the soil resources are abundant. It is not too easy to burn bricks. If a large number of bricks were burned in the North Sea country, Marin was still reluctant to use soil resources. After all, local land resources are not so rich, and clay is also precious, okay?

But America is different. The most important thing over there is the soil and soil. It does n’t hurt to burn bricks. Moreover, although the Sydney coal mine on Cape Breton Island does not produce a lot of coal, in this era of no industry, the amount of coal used is also small. It is just right to burn coal with coal and use it as much as possible to avoid waste.

Marin calculated that if briquettes are used to burn bricks, the cost of briquettes is already lower than that of firewood, and the fuel cost is much lower. In addition, the high calorific value of briquettes can burn more bricks and expand the kiln body a lot ... In this way, more bricks can be burned, and the cost is much reduced ... Finally, the cost of bricks burned by the briquette kiln is lower than that of the firewood Several times lower ...

What's more, coal gangue and coal **** can be crushed and mixed into the bricks to burn the bricks and save the soil ...

Marin calculated and calculated, and finally found a secret-that is, bricks are expensive, but they are made by people. The cost is actually mainly spent on manpower.

For example, a brick kiln is set up near the coal mine on Cape Breton Island. The fuel coal is produced by Marin ’s own coal mine, and only requires labor costs. Brick firing is also true, whether it's making bricks, burning kilns, and shipping bricks later ... In fact, the material cost is almost negligible. The real cost of bricks still comes from human labor.

In other words, as long as there are enough people to burn bricks in a place rich in coal and soil resources on Cape Breton Island, only a lot of manpower costs can be used to burn a lot of cheap bricks. Even if shipped back to the local area, the cost of burning bricks in the local area is lower. After all, burning bricks locally requires clay, and briquettes must be transported from the old Ruhr area or Newcastle.

And this low-cost brick is very conducive to urban construction. Previously, in order to save money, Marin promoted adobe houses with very low cost in China. But this kind of house is okay in the countryside, in the city, it seems not very harmonious. Therefore, Marin's plan is to gradually replace all adobe houses with brick houses in the future.

By then, this kind of low-cost sintered brick-built tile house will be popular in the cities of Beihai. In addition, such houses also use cement as a binder between bricks. After the masonry is built, the outside of the house will also be covered with cement, just like the square that is popular in later Chinese villages. Then, apply a layer of lime on the outside of the cement, white, bright, beautiful ...

Although costs have increased significantly, Marin knows that this will also boost GDP. Besides, the business of burning bricks is also Marin's own. Even if you earn less, you can make a profit. In short, it can be considered to boost domestic demand. This is a trick for China's economic construction in the 21st century-infrastructure madness and stimulating domestic demand ...

In order to gain fame in France, the brick-carrying ship sent by Marin deliberately docked and supplied at the port of Le Havre in the mouth of the Seine River in France, allowing the French to see many bricks pulled to the "Great Wall" in the Americas. Then ~ www.wuxiaspot.com ~ This news will be sent back to Paris along the Seine ...

In fact, historically Le Havre was an important port ordered by Francois I in 1517. Now, Le Havre is just a small fishing village port.

But Marin knew the potential of the port, and had already arranged for the North Sea Chamber of Commerce businessmen to infiltrate here, bought large tracts of land, and built a wharf to make it an important port of berth. When Francois I started building here, the merchants sent by Marin before would be able to drink soup and get a lot of benefits.

Because of the entry of merchants under Marin, Le Havre, the original small fishing village, has gradually formed a port town, but it has not yet repaired the fence.

The merchants under Marin built several long bridge docks here, and also built many warehouses for rent, and opened taverns and hotels. Over time, even if Francois I did not order the port to be built again, it could develop here. Because the conditions here are too good-located at the mouth of the Seine, which can connect to the capital Paris, it is definitely a first-class transshipment port ...

The brick ship in Beihai deliberately stopped to supply here, and the sailors also received instructions to go to the tavern to drink and brag. I believe that it won't take long for the news to reach Paris. In this way, it is convenient for Marin to send people to recruit immigrants ...