Although I have never been in contact with the oil pressing industry, let alone the oil pressing machinery, but as an engineering student, the understanding of mechanical principles is the basic skills, through the observation of wood pressing, coupled with the structure of the oil pressing machinery found in the library, I also have a full understanding of the structure of the oil press, and naturally I also know what kind of oil press should be designed.

First of all, the oil press uses hydraulic power.

Hydraulics is the best option to reduce manpower, at least in this day and age.

Adhering to this principle, after a long period of repeated ideas, Shi Yi Wenhua spread out the paper on the table, and then took the pencil and measuring tape and other tools to draw the design drawings of the various parts of the oil press. However, only half an hour later, almost half of the drawings have been completed.

Kou Yun, who entered the study with a fruit bowl, saw what the young master was drawing there, so he asked puzzledly.

"Young Master, what are you painting?"

"It's a new type of oil press, which is less labor-intensive than the current wood press, and it produces more oil."

Kou Yun said in surprise.

"Young master, are we going to set up an oil mill? That's not a clean job. ”

In Kou Yun's opinion, oil mills are all coolie work, so there is such surprise.

Shi Yiwen smiled, did not answer her question, but took the drawings to the blacksmith shop to find someone to make an oil press.

When he went to the blacksmith shop, Shi Yiwen didn't even pay attention to it, and directly handed over the drawing parts to the blacksmith to do, but he didn't worry that the blacksmith knew the structure of the oil press, because even if it was copied, it was useless, and now it was just a big iron lump.

In the blacksmith shop, Craftsman Feng looked at the drawings, looking left and right and couldn't understand.

"Childe wants to make such an iron frame out of iron? What does this do? ”

The so-called oil press is very simple, in fact, it is a cast iron square frame with a press tray, which is why Shi Yiwen did not keep it secret at all - the structure is too simple, and the iron lump is cast at one time.

"Can it be cast?"

Shi Yiwen did not answer Craftsman Feng's words, but asked directly.

"It's all cast out of iron, at least five or six hundred catties, can it be cast at one time?"

"Look at what you said, Childe, we Feng Ji Iron Workshop, but even 3,000 catties of iron bells have been cast, five or six hundred catties, a piece of cake, Son, when do you want this thing?"

"The sooner the better!"

Although after the factory was on the right track, Shi Yiwen rarely asked about the things in the factory, but now that the raw materials have affected the production in the factory, it is natural that it can not be delayed any longer.

"Yes, five days, five days later, I'm sure I'll send this to you."

After leaving the blacksmith shop, Shi Yiwen did not waste time, but threw himself into the oil mill and began to renovate the oil mill, although the oil mill originally had a waterwheel, but the old waterwheel was too inefficient, and a new waterwheel needed to be built, and a new transmission system needed to be redesigned, through the use of belt drive, so that the power became controllable.

In fact, this set of belt transmission system did not take long, after all, there is a similar transmission system in history, that is, the so-called sky axis or earth axis, installed above the plant or on the ground by a power machine to drive the long axis of multiple working machines, they were widely used to drive machine tools and other equipment, and later with the work machine has been driven by a separate motor, and was eliminated.

This equipment may seem complicated, but it is actually very simple, and when used for hydraulic drive, the structure can be further simplified, and for those skilled carpenters, there is no trouble in making this wooden drivetrain from hardwood.

The real problem is probably the raw materials for oil extraction.

“…… Most of the edible oils are flax, rapeseed, flax, and hemp kernels, while soybeans are not used much because steaming is time-consuming and the grains are too hard. ”

Standing in front of the new owner, Sun Jiaqin seemed very cautious, in the past, this oil mill was the uncle of the same clan, and there was a bit of family affection, but the current owner had nothing to do with him, leaving him because the owner needed someone to run the oil mill, whether he could please the owner of the appreciation, in the future, all by ability, but in this regard, Sun Jiaqin was also extremely conceited, after all, he has been in the oil mill for 30 years, and he knows everything about the oil mill.

"Then there is the oil used for lighting, one is the water and oil in the cypress kernel, the flaxseed is second, and the cotton seed is second, but because the price of water and oil is high in the cypress kernel, the flaxseed is foul smelly and produced in Shaanxi, so the Jiangnan is probably dominated by cotton seeds......"

Listening to Sun Jiaqin's introduction, Shi Yiwen asked directly.

"Who's the cheapest, I mean the ingredients."

Since it is to make soap, it is natural to use the cheapest raw materials.

"Back to the east, the raw materials for oil extraction have current prices, and the current prices are different, but in general, our oil mill is dominated by cabbage, and the price of this cabbage is ......."

Before he finished speaking, Sun Jiaqin, who was good at observing faces, noticed that the owner didn't seem to have any interest in Caizi, and hurriedly replied.

"The owner, if you eat edible oil, it is naturally the cheapest rapeseed, the people grow more, and the seeds are brittle and oily, so ordinary people are often based on rapeseed, and then sesame oil, the price is a little tasty, but the taste is good, if it is lamp oil, it is the cheapest cotton seed oil, in fact, in the oil pressed, it is the cheapest."

"Cotton seed oil is the cheapest? What a cheap method. ”

Shi Yiwen was surprised.

"The owner, I don't know."

Looking at the owner who looked like a rich son, Sun Jiaqin only thought that he didn't understand the market.

"In this world, all the cotton is planted, it is to spin cotton and make quilts, naturally no one wants cotton, but there are many of these things, there must be at least 60 catties of cotton in 100 catties of cotton, this thing is useless at all, it is to feed the livestock, and the livestock do not eat, at most it can only be used for fertilizer. It is useless and naturally worthless, although there have always been people who use it to squeeze oil, but the cotton seed oil is inferior and sour, and the oil extraction is also time-consuming and laborious, and the oil is very small, if it is not for the oil residue after the cotton oil can be used to feed the livestock, plus the cotton is not worth a penny, it is estimated that no one uses it to squeeze oil, and uses it to light the lamp. ”

Cotton seeds are useless?

Hard to squeeze?

With an oil press, what oil can't be squeezed?

Sun Jiaqin's words surprised Shi Yiwen.

"What is the price of cotton?"

"The owner, the cotton is not worth anything at all, the cotton merchants will receive the cotton, after rolling the cotton, there will be a lot of cotton in the yard, those cotton is useless at all, and it is also a place to be placed there, so the oil mill is responsible for pulling the cotton away, no need to pay for it, as long as it is shipped and pulled away, after the oil mill uses the cotton to squeeze the oil, the cotton oil is sold to the people as lamp oil, and the oil residue is sold to the people around the city, either to feed the livestock or to fertilize the mulberry trees, only in this way can you barely wrap the capital, if you pay to buy it, It's definitely not enough. ”

Belch!

And such an operation!

With his eyes wide in astonishment, Shi Yiwen stared at Sun Jiaqin and asked.

"Can this be the case, then do we have a big cotton merchant in Nanjing?"