Accompanied by An Shan, Yan Zheng went around the bamboo trench and completed the site selection of the wheel kiln, coking plant and cement plant.

This is too suitable for high-energy consumption industries, and after the inspection, the number of wheel kiln brick factories and cement factories was directly increased to seven.

Anyway, if it is fired, it can be sent out by water transportation, and the areas with ports along the coast are all within the scope of radiation.

The number of coking units in the coking plant has also increased from the planned 15 to 25, an increase of 10.

There are many methods of soil coking, and coking can be achieved even without any conditions.

The simplest open-air method is to pile up coal, 2~4 tons of coal at a time, and pile it into a semi-circle on the ground, showing a shape like a soil bag. Then cover it with straw and start the fire, and you can coke, but the coking rate is only 50%.

This method has been widely used in large-scale steel making, but the disadvantages are waste and high pollution, and it does not recover by-products such as coal tar.

Yan Zheng chose the circular kiln soil method for rapid coking, and the principle is similar to the open-pit method, which is equivalent to using a facility to make the original open-pit coking more scientific.

The key to this is the use of inclined fire paths, standing fire paths, and the reuse of gas.

To put it simply, after the ignition of the vertical fire channel, the upper coal can be coking, and the inclined fire path can ensure the coking of the middle and lower layers.

The gas produced in the process is no longer released in vain, but is re-burned to store heat, which is used to heat the coke oven and ensure that coking can be carried out more quickly.

According to the design, a circular kiln can feed 50 tons to 65 tons at a time, and the coking rate is about 65%-75%.

At the same time, through a simple design, the influence of high and low temperature difference on the airflow can be used to create the general effect of chimney smoking, and then through the pipeline water cooling, a part of the coal tar can be recovered.

This method of coking will definitely cause damage to the surrounding plants and trees after three or five years, and the pollution will be great and the harm to the human body will also be great.

Although Yan Zheng knew the dangers, he only wrote in the booklet that during the coking process, please be sure to wear a mask.

In fact, this is the case in the chemical industry, and the early sulfuric acid plant workers would even have their teeth corroded after a few years of work.

But if we want to develop, we can't talk about benevolence and righteousness at this time.

……

Ten days later, the first small circular kiln was built, with a diameter of 3 meters on the ground floor, except for some places using iron sheets, the rest of the place was made of cement, red bricks, and refractory clay.

Prefabricated iron cast pipes are used in the vertical fire road and inclined fire road, so it does not take much effort, and cast iron pipes are also used in other pipeline facilities, and the steel industry is developing greatly, which is so unreasonable.

After the first attempt at coking, the coking effect of the whole facility is good, and the amount of coal tar recovered is also good.

As a result, the planned circular kiln can be built by simply following the small circular kilns tested.

If nothing else, six months later, coking coal production will be enough to support the steel industry to a higher level.

Yan Zheng also took advantage of these ten days to visit the mining road and the Anyuan coal mine, and determined the length and site selection of the railroad tracks.

According to his plan, the laying of the railroad track will stop in front of the mountainous area, and the distance will be shortened to more than 20 kilometers.

It is really inconvenient to lay railroad tracks in the mountainous area, so they simply build them to the foot of the mountain first, which also greatly shortens the distance of transportation.

…………

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In the Anyuan coal mining area, the son of Wada Jichuan is dead.

He died not of malaria, but at the hands of a Japanese overseer.

On that day, he went berserk and wanted to die with the overseer, but he was arrested by the patrolling soldiers along with the overseer.

Just when he was in despair, the soldier, who probably figured out the reason, hanged the overseer directly.

The overseer's whip was also delivered into his hands.

This made Wada Cichuan very ashamed in his heart, he felt that this whip was exchanged for his son's life.

He was ashamed, but he also enjoyed the benefits of the whip.

As an overseer, he eats three meals a day better, and he doesn't have to exert any more effort.

Every day you only need to take the whip and supervise these workers.

At first, Wada Jikawa didn't know whether to be grateful to these soldiers or to hate them.

It was only after a long time that his heart changed, and he felt that only with these soldiers could he take revenge and get rid of the hard life.

The strongest hatred in his heart is the hatred of the Daimyo! It's hatred of the daimyo samurai!

As soon as this idea became stronger, he took the initiative to draw a line with the laborers, just like other overseers.

They form a small group of their own, oppressing their former compatriots internally, and kneeling and licking the masters who bought them externally.

In this way, they really got more preferential treatment.

And today, these overseers were called to stand in a row early, although they didn't know what the situation was, but they knew in a moment that this was an important person to wait for.

They stood tall one by one, meticulously waiting for the arrival of the big man.

In his heart, Wada Cichuan couldn't hold back his excitement, he felt that this was an opportunity, this was a great opportunity.

Soon, Yan Zheng, who had a big back comb, walked here under the escort of the guards.

A few of the soldiers who had been in charge here immediately raised their hands and motioned for the overseers to applaud.

Wada Jikawa followed suit and began to applaud in a rhythmic manner.

Yan Zheng also waved his hand, he knew the management system here, and deliberately took the time to meet these supervisors, in his eyes, isn't this the "second devil" in a group of devils?

“%……@￥%……&”

Suddenly, just as everyone was applauding, a Japanese overseer knelt down and shouted with tears streaming down his face: "*&** Onboard, onboard, onboard!" ”

Wada Jichuan was stunned, looking at the kneeling black dog Jiro, he reacted violently, snapped and knelt down, kowtowed and shouted: "Onboard, onboard, onboard!" ”

Immediately, all the overseers knelt down, and wept bitterly one by one, just like the people of the North Stick saw the three fats.

Yan Zheng was stunned for a moment, and Lu Wan and An San next to him, as well as other soldiers, were all looking at this scene in confusion.

"If you want to kneel, let them kneel, after all, they are Japanese people, and they can't be regarded as Huaxia!" Yan Zheng said lightly.

An San nodded and introduced: "These overseers have all withstood the test, and they are reluctant to throw away the whip if they can hold out until now!" The same is true of those laborers, since they no longer have to build roads, they are very satisfied with their current life, and they eat every day with a smile. ”

Yan Zheng snorted, he smiled at these overseers, and said loudly: "Go there to dig coal, dig a sack!" ”

The overseers did not understand and continued to cry and shout, their deferential expressions, and their short stature, making it difficult to associate them with the Japanese criminals.

Yan Zheng recited a few more words of Japanese that he knew, and after confirming that he could not communicate, he said to An Shan: "Take these overseers to the Yangang barracks, and select hundreds of laborers who are in good health by the way, and let them practice wearing heavy armor!" ”

"Let them train?" Lu Wan was puzzled.

"That's right, there is little animal power in our army, so we can only replace animals with people, and on the battlefield, we always need someone to stand in front of us!" Yan Zheng said with a smile.

Lu Wan thought for a while and said, "That's a good idea! This way we can reduce casualties, and they are so short that they don't affect the shooting! ”

"Then you might as well recruit more, anyway, there are so many of these laborers!" Yasan said.

"No need! Just re-recruit when you're dead. ”

The overseers were still crying bitterly, and when Yan Zheng left, many people still crawled and followed for a distance.

As a line of soldiers laughed and signaled that they could leave the place, the overseers cheered violently, and one by one they were reborn.

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