Chapter 203 Cement

Three water-powered mills, three different functions.

The first one is connected to the connecting machine pre-invented by Hou Du of Dangyang in the Western Jin Dynasty. The Book of Jin records, "Today's man-made water wheels, the axles can be several feet long, the rows run through the horizontal wood, and the intersection is like the system of guns." ”

"When the water rotates, the horizontal wood between the shafts, and the rows of mills are hit between them, and they fall together, that is, even the machine is also licked."

It is to use a large water wheel to drive the wheel axle, and the wheel axle is equipped with a row of staggered paddles, and the paddle plate then dials the mill rod, so that several scoop heads continue to lick the rice one after another.

There are eight paddles on the wheel, corresponding to four sockets on one side, which can be used for grain processing at the same time, and are also used to crush clay, spices, and ores.

The second mill is connected to a relatively complex machine - the water wheel three things.

This thing was invented on the basis of Du pre-water wheel soil milling, and by changing its axle head device, it can be made to have three functions: grinding noodles, rice and rice.

First, it was a large vertical wheel driven by hydraulic power, with gears attached to the extended axle and two other gears to form a gear set.

The paddle on the shaft can drive the scoop rod so that the scoop head reciprocates up and down, and can lick the meter.

One of the gear sets is a flat wheel, and the shaft where the flat wheel is located is equipped with a mill, which can be ground with a stone respectively, and replaced with a soil mill, which can be shelled.

It cannot be underestimated, it is recorded in the "Book of Agriculture": "The three things of the water wheel are called the water wheel shaft, which can be combined with three things, grinding, grinding, and grinding." At the beginning, the water mill was set up, and the wheat was turned into flour, as usual; Compound in the mill outside the periphery of the grinding round groove, if you want to cut rice, but the head of the water wheel shaft is easy to grind and place; If you have rice, you will go to the mill and grind it, and the dry rice will be milled through the trough, which is the mature rice. ”

"The husband has a machine and three things, always ready, change and can pass, and there is no lack of both, save and have to have, the living method of sincerity and convenience for the people, and the potential of creation."

One machine a day, it can process 3,000 catties of rice!

The third mill is Su You's own invention - the oil press.

This thing did not appear in ancient China, because it used ball screws that were not available in ancient times.

Lead screw pressing has been used for mustard use for pickles, but now there are balls carefully selected with a micrometer, which are added between the screw and the nut, and the rolling friction is used instead of sliding friction, turning ordinary lead screws into ball screws.

The lead screw converts the rotary motion into linear motion, and the outer profile of the nut is gear-type, which is rotated by the gear group box, so that the lead screw moves forward or backward in a straight line, and pushes the metal sheet to extrude the material, which is the screw press.

The seeds are cleaned, crushed, softened, rolled, steamed, pressed, and filtered to obtain soybean oil, sesame oil, tea oil, and mixed oil.

It can also be used to press sugarcane, or to compress flour to make compressed feed and compressed food.

The above is food, and the other is a production material, which is very important - tung oil.

Compared to stamping, the spiral speed is slower, but more delicate and stable, so it can also press softer, more processed metals, such as fine coins.

In Kolong, it is impossible to make coins, but there is no problem with the exquisite sword hammers, scabbard decorations, and some door and window accessories.

In the sword processing industry, metal decoration is a professional craft - hammer work, and knife bar building are two categories.

If the Shi family wants to make huge profits from Dali Sword, of course, they have to work hard in these aspects.

The children also happened to follow the learning, and the slogan put forward by Su You to the children was that one day, they should be able to use mechanical methods to mass-produce products that Shijia Seiko can achieve.

Of course, this is a pie in the air, but it does not mean that there is no hope at all.

For example, with the advent of abrasive paste, children can now reach the level of metal surface treatment before Shijia millers through wheel belt equipment and abrasive paste.

But the problem is that those grinders in the Shijia Iron Workshop also use grinding paste, and the Seiko grade has also gone up, the gap is still a gap, and there is a tendency to widen, but laymen can't see it.

With brass with good sealing performance, bolts and nuts of standard parts, micrometers, springs, steel sheets, and water glass precision casting process...... With these advances in technology and technology, Su You took Liu Si and Zhang Sheng to come up with something simple and not simple - butt hard seal ball valve.

The ball valve is a valve that uses a metal ball with holes as the opening and closing parts, driven by the valve stem, and rotates around the axis of the ball valve.

Its function is to regulate and control fluids.

In fact, it is the key component inside the faucet, but compared with the industrial mass production of the faucet, this thing needs to be finely ground by hand, because there is no rubber, so the steel sealing ring and the brass valve core must be tightly combined to achieve a perfect sealing effect.

In the final analysis, it is still a fitter job, and several team leaders can take the children to complete other tasks, but this key part is not done well, and only Shi Fu can do it at present.

But with this thing, Su oil is beautiful.

Not to mention the pigsty, chicken shed, and conservatory, you can get the first luxury in the Su house - a washroom and bathroom.

It was only at this time that Su You remembered whether it was time to start cement.

Industrial production of cement requires converters, which is almost impossible.

However, in later generations, there were still many small workshops in the countryside that used small vertical kilns to burn cement, using the soil method, and like small paper mills, they belonged to the most severe environmental protection targets.

There are three kinds of soda oil alone - clay cement, slag cement, bauxite cement,

Clay cement is the weakest, with clay and crushed pottery powder as the main materials.

The slag cement is good, mainly coal ash and iron-making slag, and the finished product composition is close to the formula of ordinary Portland cement.

Bauxite cement is obtained by crushing and firing bauxite and scrapped jade porcelain fragments as raw materials, so the cement produced has some characteristics of bauxite cement, that is, high solidification speed and strength.

For example, the cement prepared from all white porcelain fragments is as white as jade, and can be used as white cement to decorate the joints, but as with the production of porcelain, it is necessary to prevent iron pollution in the processing process, so as not to turn white into red.

The three materials are burned out, called clinker, and lime and gypsum as ingredients are added to make cement.

No matter what kind of production materials, there are too many companies in Sitong today.

The broken ceramics of the Shijia porcelain workshop, the slag of the Shi family, and the cinders of the mausoleum are almost piled up.

In view of this situation, Su You decided that for the sake of the environmental protection of the Great Song Dynasty, a cement workshop must be built.

It sounds very ridiculous, but now the natural environment of the Great Song Dynasty can easily dilute the gas and water pollution of Meishan, which is a quasi-industrial discharge, so the environmental problem of Meishan is really a waste residue accumulation problem.

Turning these waste residues into usable things and consuming them can indeed solve most of the current environmental protection problems in Meishan.

There's no place to reason.

The advantages of the above three types of cement are good water resistance, good acid and alkali corrosion resistance, convenient and simple production, and can be applied to water, underground engineering and acid-alkali corrosion buildings.

But the intensity is lower, and there is no need to think about high-rise buildings.

However, the foundations of ponds, fish ponds, baths, and houses ......

There are also urinals, manure tanks, toilets, pigsties, pig troughs, livestock troughs, silage tanks, feed tanks, millstones......

In short, it is completely enough for today's Kelongli.

To say the disadvantages, is poor frost resistance, slow solidification, and prone to dry shrinkage cracks, so the maintenance work is very important when using, and the cycle is very long, almost a month.

When pouring beams, columns, and slabs, the number must be determined in advance, and then the concrete must be prepared according to the design strength.

Fortunately, this is in Meishan, and there is an old artifact - miscanthus salt.

Miscanthus nitrate is melted in hot water, and fully stirred evenly, and then mixed with mortar or concrete with miscanthus nitrate solution, which can greatly accelerate the solidification speed.

Just do it, and get the lab process out first.

asked Shi Da to order a batch of tiles, and then designed a washbasin and a flush toilet, Su You contracted the infrastructure project to build a bathroom to the third and fifth brothers, and took the babies to wear masks and make cement.