Wang Ren came to report on the affairs of the merchant hall, and Zhu Gaochi sent his chief with Zhang Quan.

If the Honeycomb Coal Merchant wants to go out to do business, it will encounter the power of local officials, and Zhang Quan is Zhu Gaochi's side.

It was just right for him to come forward to deal with the authorities, to tell people about the heels of the merchants, so as to avoid anyone from making up their minds and obstructing them.

The rest is a business matter, and the eight immortals just crossed the sea to show their magical powers, and Zhu Gaochi couldn't control it.

They have skilled workers, mature technology, and abundant capital, so they can't stand firm in the market and are defeated by rising stars, and what the merchant hall wants to absorb is the rising star.

And it's also impossible, the business spell is these things, if someone wants to make the yin trick spell background, then the merchant hall is in Beiping sideways.

Zhu Gaochi came to the coke refinery.

Whether it is gypsum or alum, it was a common thing in ancient times.

For example, alum ore was added to traditional Chinese medicine in the Tang Dynasty, heated and melted, poured into rice vinegar, mixed thoroughly and dried, and taken out and cooled into medicine.

The barrel contained a green crystal irregular translucent ore, which was the alum that Xiao Jiu had prepared.

"What is the alum for?" Xiao Jiu was nervous, not afraid of Zhu Gaochi, and stepped forward and asked curiously.

People are used to Xiao Jiu's style, and no one dares to learn from him.

"You'll find out later."

Next to the blast furnace, there are workers with long iron hammers poking around inside to test the temperature inside.

"I splashed it with water the day before yesterday." Wang Ben introduced to the little prince on the side.

"After pouring the fire, it took half a day to find a small fire, and you can't miss one place, otherwise if you miss any place, the coal mine in that place will have low anxiety, and even coking failure."

"After cooling down every other day, you can scorch today."

"Coke."

As soon as Wang Ben's words fell, the team leader in the distance checked everything and confirmed that there was no problem, and then shouted.

Workers push the two-wheeled cart forward, and the two-wheeled cart has empty baskets, which will be used to load coke.

They stopped upwind of the coke kiln.

The head of the squad and two workers opened the air duct and opened the kiln door.

Xiao Jiu ran over curiously, he wanted to see the waterlogged environment inside, and whether the soil would be more fertile than the ground next to him, as the little prince said.

Some of the words that the little prince said the day before yesterday made him miss him for three whole days.

"Come out quickly."

Li Er immediately shouted, startling Zhu Gaochi.

Xiao Jiu subconsciously stopped and looked at Li Er for some reason.

"I'm not going to step on coking coal."

Xiao Jiu thought that Li Er was worried that he had stepped on the coking coal, and said with a smile on his face: "If there is still residual temperature in some coking coal, wouldn't it burn me." ”

"Who let you in, do you know the rules? Didn't your master teach you? Li Er scolded unceremoniously.

Xiao Jiu's face turned red.

"I'm sorry, I forgot, the master said that you can't just enter other people's workshops."

"There's poisonous gas in there."

Li Er is this character, he is strict with his apprentices, and he beats and scolds him at every turn.

So in the factory, Wang Ben is not only better than him in technology, but also more popular than him in terms of popularity.

Although Wang Ben also scolds, he does not beat people easily.

Zhu Gaochi glanced at Xiao Jiu, then at Li Er, the corners of his mouth moved, and finally he couldn't help it, what's wrong with people's tempers.

Who let Xiao Jiu make a mistake on someone else's turf?

Zhu Gaochi also remembered.

Ammonia is toxic.

However, the coke oven has just finished smelting, and even if there is no poisonous gas, the air inside is unpleasant, and who has nothing to smell it.

Only Xiao Jiu is curious, and if he were an ordinary person, he wouldn't go inside.

However, ammonia volatilizes quickly, and after the coke oven is ventilated, it is quickly dissipated in the air, and the rest is dust.

Half an hour later.

The head of the squad went in to look, and then waved his hand, and the workers tied a piece of cloth to their noses, pushed the two-wheeled cart forward, and went in and began to burn with the basket.

Although there are many people, they are not cluttered.

People have chisels in their hands to test the coke and make sure that there is no danger, and they will put the chisels neatly.

lest the drill fall over and crush the large pieces of coke.

The order of coking is not the outside and then the inside, but the top to the bottom to ensure the safety of the coking process.

"Tie a basket of white cloth and hold a large amount of coke."

"Tie a basket of blue cloth and hold medium-sized coke."

"There are no baskets for cloth to hold the remnants of coal that has failed to coking."

Wang Ben spoke in a slight tone in front of the nobles, as if he had changed just now.

Xiao Jiu looked at Li Er, Li Er nodded, and Xiao Jiu went into the coke oven again, as if he had forgotten that Li Ercai scolded him just now.

"Can we go in and have a look?"

Zhu Gaochi asked.

Wang Ben hesitated, and finally agreed to the little prince's request.

Wang Ben and Li Er walked to the front, and after Zhu Gaochi entered, he saw Xiao Jiu, who was shaking out the stagnant water in the coke oven with a wooden scoop and putting it into a wooden barrel.

The coke oven is hot and humid, and there is a lot of water on the ground.

This is due to the fact that water is added from time to time during the refining process.

In the pre-millennial process, the process was sprayed with water earlier, and later coking wastewater sprayed in order to reduce costs.

As a result, toxic and harmful substances such as phenol, cyanide and polycyclic aromatic hydrocarbons in coking wastewater are released into the air, causing serious air pollution.

At present, coke ovens do not have a wastewater recycling system, and naturally use clean water, and the environmental pollution and toxic gas are relatively small.

However, although it is an advanced coking technology in today's era, the wet quenching process is also accompanied by a large amount of heat loss, and the quality of the coke obtained is not high.

Therefore, the anxiety of coke refineries is only sixty percent.

However, after the millennium, with the development of technology, there was more advanced technology, and the dry quenching method was adopted.

It is a widely used and mature coke quenching technology in the coke ovens of iron and steel enterprises in later generations, which uses cold and inert gas to cool the red hot coke.

However, Zhu Gaochi knows that he can't figure out this set of techniques.

The freshly baked coke has a lot of moisture.

There is a drying process in later generations, and now there is no large-scale drying technology, which requires the help of sunlight, and only this process can save a few days of time and a lot of labor costs in later generations.

30,000 catties of coal, about 18,000 catties of coke, plus the remaining residues, coal blocks, about 600 baskets.

And because the process of coking should be from top to bottom, there is no nearby convenience, and various precautions, which can not be completed in one or two days.

Workers are busy with their own jobs and can't take care of others.

Seeing this, Zhu Gaochi didn't bother anymore, and left the coke oven with the stewards, the dust inside the main thing was not small.

Although there is a cloth covering the nose and mouth, the breathing is dull after a long time.

When he arrived at the open space, took off the cloth cover and breathed in the fresh air, Zhu Gaochi felt refreshed and sighed: "The environment of the workshop still needs to be improved." ”

"It's been improved."

Li Er stepped forward and said with a smile: "In the past, the coke kiln was small, digging pits in the ground, and during the refining process, although there would be stagnant water, there would not be much stagnant water. ”

"Nowadays, the coke kiln is bigger, and there is more water, so Master Wang came up with the idea of laying a basement underground, so that the water can flow into the basement."

Zhu Gaochi looked at Li Er in surprise, and there was some realization in his heart.

Where there are people, there are rivers and lakes.

Li Er took the initiative to speak and asked for credit for Wang Ben.

Although there were contradictions between the two in the past, technology is king, and the master is the first, it seems that Li Er is convinced, and it can be regarded as a disguised submission to Wang Ben.

"Master Wang has meritorious."

"It's just a small thing, it's not enough to worry about, and there are similar ideas among the craftsmen, and it can't be all on my head." Wang Ben said modestly.

Zhu Gaochi recognized this sentence.

From small workshops to large factories, there are bound to be a variety of problems in production.

For example, the problem of stagnant water.

The establishment of the basement that Wang Ben thought of was not a fantasy, and it was a technology that would be thought of by the factory sooner or later.

It meets the needs needed for technological advancements.

Where there is demand, there is progress.

As the British scholar lamented, whenever the factory encounters various difficulties in production, there will be smart craftsmen who come up with solutions.

From small workshops to large factories, the problem of water accumulation has been put on the table, and people have paid attention to it, and people will think of building a basement.

Countless such small breakthroughs, that is, the technological revolution, also belong to the industrial revolution.

But what's the matter.

Some technologies are too big to be explored in a few years or more than a decade.

Zhu Gaochi watched Xiao Jiu carry a wooden bucket onto a carriage, and the colorless and transparent water in the bucket was no different from normal water.

This water is no ordinary water anymore.

It is the gas obtained after the coking process is sprinkled with clean water into the coke oven to cool down and burned in the coke oven, that is, ammonia.

Ammonia gas is easily soluble in water, combined with clean water, deposited and flowed into the basement, forming ammonia.

Wang Ben didn't understand ammonia, thinking that the little prince was curious, so he explained: "Lowering the temperature of the coke oven with clean water can speed up the formation of coking coal and prevent the coke oven from cracking." ”

Zhu Gaochi nodded.

The ancients did not understand the specific chemical composition, but they accumulated experience, and with the advancement of knowledge, people analyzed these phenomena.

The cracking of the coke oven is the cause of ammonia.

Ammonia gas is not flammable and does not explode easily.

However, in the state of liquid ammonia, in a high-pressure environment, if the required conditions are met, an explosion will occur.

Ammonia itself does not explode, but the gas born in the coke oven will explode the coke oven.

The coke oven is an earthen kiln, and in an extreme environment, it will be cracked by ammonia, resulting in damage to the coke oven and failure of coking.

So the ancients discovered this phenomenon.

The composition ratio of ammonia to air reaches six to one, which is easy to ignite when encountering an open flame, and will form an explosion in a sealed environment.

But this is a coke oven, and the air content in the coke oven during the coking process cannot meet this condition.

Moreover, in the process of production, I don't know which ancestor thought of adding clean water to cool down, which not only optimized the coking technology, but also accidentally played a dilution role in ammonia.

And the air outlet is opened on the coke kiln wall, because of the density, the smoke will come out of the chimney directly above the coke kiln, and the ammonia will be discharged from the side tuyere.

Later generations adhered to the experience of these ancestors and solved the problem of production.

It's the same as discovering ammonia fertilization.

Ammonia water has a fertilizing effect and can be fertilized directly.

People poured this wastewater into the fields, and over time they discovered that the land was fertile, and then began to experiment with ammonia to fertilize the fields.

As the concentration of ammonia changes, you will find that you need to dilute it, and start to explore how much water to add is the best effect. Keep in mind that: