Daming pirates

This immediately stopped the immigrants' habit of not following the hygiene requirements. After being spanked, many people did not dare to poop casually even when going to the fields. They were so suffocated that they even ran back to the village. defecate in the toilet, which greatly increases the amount of feces produced in the pit.

In addition, Yu Xiaotian also hired a group of masons to dig a big pit next to the toilet in Tamsui City. The bottom of the pit was paved with bricks and stones, and the walls of the pit were also built with bricks and stones, and they were painted with soil and cement. The walls and bottom of the pit were removed, and a sealed lid was added to the top of the pit, leaving a feeding port.

In addition, the excrement in the latrine can be directly discharged into the pit through the ditch, and the feeding port can also put some rotten vegetable leaves, rotten fruits, straw and other things into it.

Sometimes Lu didn't know what Yu Xiaotian was doing, why he made the cesspool so troublesome. In their opinion, it was enough to just put a lid on the cesspit, why go to all this trouble and require bricks and stones? It also requires manual labor, which is really thankless.

However, Yu Xiaotian did not explain too much to them before it was completed, and continued to lead people in the construction. After the construction was completed, and after checking that there were no problems, he began to have people put a small hole on the lid of the pit. The hole was connected to a bamboo pipe that was opened up. The bamboo pipe was smoked, carbonized on the surface, and antiseptic. The joints of the bamboo pipe were sealed and connected using earthen methods.

Finally, the bamboo pipe was connected to an erected pole on the side of the road. The blacksmith made an iron mouth at the mouth of the bamboo pipe, and also made a glass cover to cover the iron mouth.

Then they began to introduce feces into the pit, and also put in a lot of rotten vegetable leaves, rotten fruits, grass and other things. Two days later, Yu Xiaotian took people to the pole erected by the roadside and picked the poop. Put down the glass cover, use a little fire, and the iron mouth inside the glass cover will immediately spurt out a stream of flames.

Everyone who followed Yu Xiaotian to see what was going on was immediately shocked. They didn't know what kind of trick Yu Xiaotian had done. He actually lit this thing on fire out of thin air without using wax or lamp oil.

It was only at this time that Yu Xiaotian explained to Fang An and others: "This thing is a biogas tank. The feces is introduced into the tank, some rotten vegetables and other things are added, and it is cooked in the tank. The tank is sealed. During the decomposition period, A gas called biogas will be produced, which can be ignited. Later, the biogas produced in these biogas pools will be led to the roadside and ignited at night to illuminate the streets.

In the future, with these street lights, our Tamsui City will become a beautiful sight. From now on, when walking in the city at night, we will no longer need to carry a lantern!

And if the biogas can't be used up, it can be connected to the kitchen and used for cooking. There is no smoke and dust from firewood, and it is more hygienic!

The most important thing is that after using this kind of biogas tank, mosquitoes and flies will no longer be able to breed maggots in the manure tank. When the weather is hot, there will naturally be fewer mosquitoes and flies here.

Furthermore, after the excrement and rotten things in the pond are decomposed, it is the best waste material. It is cleaner than retting dung and has more fertility. It can be taken out regularly and put into the farmland, which can strengthen the fields and make crops more fertile. Get more grain! Why wouldn’t we do it?

This is just the first one. I have seen this kind of thing before, but I am not very familiar with it. So I fumbled and made such a biogas digester. There are still many imperfections. I will have to use it and think about it gradually in the future. When it is perfected, its air output will be increased. When it matures one day, it can be promoted to various immigrant villages. Even if it is used for lighting at night, it will save a lot more than lighting lanterns..."

After hearing this, everyone was amazed and all gathered around the biogas street lamp to look at it. At this time, a guy came to the side of the biogas tank and looked around the biogas tank.

This guy is a member of the Sea Wolf tribe and has developed the habit of smoking. He unconsciously took out a cigarette, then took out the fire stick and tried to open it and light it.

But Yu Xiaotian looked sideways and immediately yelled: "Get away from me! You are not allowed to smoke over the methane pit, and you are not allowed to hold an open flame there!"

The guy who was about to light a cigarette was so frightened by Yu Xiaotian that he quickly ran away and put away the cigarette. Huo Zhezi quickly stuffed it into his arms.

Yu Xiaotian then explained to everyone again: "You have all made it clear to me that the biogas produced by this biogas pool is flammable. It will burn when exposed to fire and will explode if you are not careful!

This biogas pool has just been made and is not perfect yet. It is inevitable that there will be air leaks. If the biogas is ignited, the biogas pool may cause a big explosion for you. It is not difficult to kill people!

Even if the explosion doesn't kill anyone and the excrement inside is blown up all over the sky, many people will suffer. None of you want to think about a rain of excrement in Tamsui City!

Mr. Lu, you will arrange for a special person to take care of this biogas tank in the future. No one is allowed to use an open flame here within thirty steps! Remember, when producing fertilizer, open the lid first and ventilate it before starting to produce fertilizer! Otherwise,

If you do, it will knock people down. Remember these points and don’t get into trouble! If you don’t get this right, people will die!”

Only then did everyone realize that this methane pit was not as beautiful as they thought, and actually had such dangers, so everyone became wary. Some people felt that such a big bomb was set off just because of the methane that could catch fire.

It's really dangerous in the city, so it's better not to use it.

It’s not impossible to light street lamps. You can just use more oil. Is it so laborious? Building a biogas digester requires a lot of manpower and material resources, and costs a lot of money to build it. It’s also dangerous, so some people think

It's a bit overkill for Yu Xiaotian to come up with something like this.

But Yu Xiaotian doesn't think so. Things like biogas pits are a good thing for him and can solve many problems. Although they are a bit dangerous, as long as you are careful, the problems will not be too big.

However, building a biogas tank requires a lot of cement. Although it is not necessarily impossible to use cement, if you use masonry and do not use cement for sealing, obviously the sealing will be poor, and there will also be leakage problems, which is not conducive to the decay tank.

things in.

But now, although Yu Xiaotian has built several hydraulic mills using local methods, specifically used to crush broken bricks and tiles to make some soil cement, the output is really pitiful, and he cannot produce much soil cement in a year.

, and it’s a huge waste.

So he began to think about what the next step would be to build a cement factory to specialize in the production of cement for the sea wolves.

As long as there is something like cement, it will be much easier for Sea Wolf to build things in the future, especially things such as cannon forts and bunkers for military purposes, which can be built very strong and durable.

So cement has now become a problem that he wants to solve as soon as possible, and cement is not a high-tech thing. The raw materials can be said to be readily available, and enough raw materials can be obtained nearby. Except for coal, which needs to be purchased from land.

Besides entering, other raw materials are easy to solve.

Although Sea Wolf currently has little demand for coal, Yu Xiaotian will prepare a steel-making furnace sooner or later. Coke is indispensable for steel-making. Although charcoal is also acceptable, the calorific value is too low and the cost is not low.

, and it will cause great damage to the environment. In the short term, the wood resources here are enough, but if it takes a long time, using charcoal to make steel will consume a lot of wood, so if you make steel, coal is still indispensable. Build a building first.

Coking plant, coke is used to make steel.

As long as steel can be produced, it will play a huge role in promoting the military industry in the future. Today's iron cannons are all made of pig iron. Although the iron mold cannon casting method is used, the quality of the cannons is effectively improved.

However, pig iron is still too brittle. In order to ensure safety, the cast iron cannon is still too heavy, and the safety is far less than that of tough steel.

Once he has a steel-making furnace, he can cast steel cannons in the future, and he can also use steel to make guns. Compared with the current use of wrought iron to make guns, the quality will be greatly improved.

As for the steel cannon, let alone it, because the toughness of steel is much greater than that of cast iron. If it is cast into a steel cannon, then the weight of the cannon can be reduced, making it lighter, which can be used to arm the army and can also be used as a large weapon.

The auxiliary improves the combat effectiveness of the warship.

In addition, if you want to produce cement, you also need coal as a raw material. Therefore, coal as an industrial raw material has always been the object of Yu Xiaotian's attention. Unfortunately, Taiwan Island is a place lacking coal. It is said that there is coal, but he does not know where it is.

Naturally, it cannot be mined anywhere, and with current technology, even if coal reserves are discovered, it will be difficult to mine them.

In this era of coal mining, the simplest method is open-pit mining. After peeling off the upper soil layer of the coal, the coal is directly mined in the open-pit, which is labor-saving and relatively safe.

Currently on the island of Taiwan, Yu Xiaotian can't think of any better way to solve the problem of coal supply besides purchasing from land.

Although Sea Wolf's current demand for coal is not large, in order to keep the sulfur and phosphorus content in the pig iron low, they still use charcoal as fuel for the time being, so the demand for coal is not urgently needed at the moment.

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But once he decides to make steel or burn cement, the demand for coal will increase significantly in the future.

Before that, Yu Xiaotian had also considered this issue. At some point, he consciously ordered Sea Wolf's ships to be evacuated from land, load some coal, and transport it back to Nanyue Island and Tamsui, even if it was useless.

, have also been temporarily stored. Currently, hundreds of tons of coal produced in Tingzhou Prefecture, Fujian Province, which is later known as Longyan City, have been stored in Tamsui.

Although these stored coals can solve some problems for the time being, once cement burning or steelmaking begins, this reserve will be almost as good as none. Therefore, his next step is to increase transportation capacity and purchase more coal from land.

OK.