Three tracks, carrying three different materials, follow different entrances into the mixing chamber, where lime is the first to arrive, then clay, and finally red iron ore powder, which is the last to be fed into the mixing chamber, at the top of the chamber.

Iron ore powder because of the specific gravity is larger, so when mixing, must be placed in the upper layer, the current power structure, it is difficult to keep the mixing chamber irregular, even up and down flipping, can only rotate at a constant speed, to one direction, or the other direction, the high specific gravity is placed on it, which is conducive to the mixing process.

The quality of cement, on the one hand, is the raw materials, such as adding additives such as iron ore, such as the calcination temperature of lime and clay, but the same raw materials, whether the mixing is uniform or not, is the key to determining the final quality of cement, this point, whether it is Yang Yuanzhao, or Li Mingsheng is very clear, the mixing room, can be said to be the focus of Li Mingsheng and Yang Yuanzhao, from the cement plant to the present, almost every three years, there is a mixture room.

It can be said that the mixing of different proportions, the number of times of real yàn, is 50 times, and the remaining different additives, different material mixing, different shaking and stirring methods, add up to hundreds of times, such a rigorous real yàn, for this mixture, to see whether the mixture is uniform, this is one of the most important steps of cement.

Now, after more than a dozen improvements, the final formation of the appearance, a huge somewhat similar to the mixer mixing room of later generations, but the volume is much larger, there are almost fifty or sixty cubic huge mixing room, which is divided into more than a dozen different cabins, which will rotate at a uniform speed under the operation of the machine, and between the cabins, the mixing will be relatively in place, and then, when a deflection is made, all the materials will be mixed with each other, and then continue the previous steps.

This kind of mixing, to avoid the central position, or the specific gravity of the material is relatively large, the problem of uneven mixing, greatly saves power, according to the real yàn, up to two hours of uniform rotation, a hundred tons of material, can be mixed evenly, without changing the direction of rotation, or the way of speed.

Limestone, clay, plus the iron ore powder added later, through guò several crushing and adding, has basically been in place, three materials, and some other added materials, from three different directions, into the huge mixing room, this addition process, carried out for more than half an hour, the mixing room has seven or eight percent full when all the entrances are closed.

Several workers stepped forward, with the help of the hoist crane, a thick steel bar, and the main shaft of the mixing room was connected together, under the impetus of power, the huge mixing room was lifted, and began to do reciprocating motion, the sound of cheering, and the sound kept ringing inside, these materials would be evenly mixed together under the force of gravity and spiral rotation.

Such a movement, continuous for an hour, such a mixture, after considering the problem of gravity and balance, the successful mixing of the material, will be very uniform, to meet the standard of cement production.

This in other cement plants, the most labor-intensive activities, you know, the raw materials of cement, after crushing, need to be mixed together, in China's largest Qixin ash plant as an example, they only have one machine qì push container, can do a regular reciprocating operation, to mix, need to master constantly add, with eye and labor, so that the material is mixed, generally speaking, the whole container is not large, will not exceed 1 cubic meter, after all, if it is too big, mixed up, some can not push, under normal circumstances, There are more than a dozen of the same machine, with the help of a master and about 20 laborers, the manual to mix, the manpower consumed is too large, and the effect of cutting and mixing completely depends on the level of the master, which is also the production capacity of the Qixin ash plant can not be enlarged fundamentally, and the master who has been carefully cultivated, just a few, to increase, it is very difficult.

Li Mingsheng is very aware of this, in the design, also discussed with Yang Yuanzhao in detail, Yang Yuanzhao recalled a similar mixing room in later generations, I have never seen a real cement plant, concrete mixing mixing room, and some chemical mixing room, more or less give him a little hint, a first-class vision, a first-class practice, the combination of the two, Yang Yuanzhao's machine qì and Li Mingsheng's design, has become the most labor-saving step. Whether it is the process of transporting materials or mixing, basically no manpower is required, what people have to do is to rely on their eyes to observe the uniformity of the mixed materials, and once there are clumps or blockages, use the machine to control the intervention, break these blocks, or other treatment methods.

However, such an opportunity is almost unlikely, before, in the construction of the cement plant, there was no integrated test of the whole production line, and the single mixing test was almost non-stop, and in hundreds of actual yàn, and at least 300 hours of test run, manual intervention, only once.

Such a design, save a lot of manpower, cut production efficiency, one hour to complete the mixture, at least 40 cubic meters at a time, with the specific gravity of cement, this is a hundred and ten tons of dry material, this link is full load operation, one day is enough to produce more than 1000 tons of dry material, such efficiency, can not be said to be high, it is simply unimaginable, this weakest link, after reinforcement, becomes the strongest link, the mixture can no longer restrict the production of the cement plant, but becomes the whole design, The only step that has to be produced at full capacity.

An hour of time, soon passed, the whole production line is waiting, normal production, there will be no zài a link waiting for a link things, a mix of more than 100 tons, enough half a day, or even more time to produce, so, are prepared in advance, and only such a test run, will be such a step, step by step to do, it looks slow, this is a new production line, there may be a lot of problems in it, it seems to be a big movement, in fact, very careful, Whole-machine testing is more of a step-by-step integration.

The mixing is completed, the dry material is mixed evenly, and the cement has also come to the third step of production, Li Mingsheng specially went to the mixing room to do a sampling, and the machine that has been tested by many parties is very good, the mixing is uniform, but the dry and humidity reach the standard, and there is almost no need to stand, you can enter the next calcination link.

Generally speaking, according to the experience of cement plant production, after mixing, it also needs to stand to make the mixing more fully uniform, so that the quality of cement will be better, but unfortunately today's time is limited, Li Mingsheng inspected most of the qualified, waved his hand, and then carried out the calcination link.

Calciner, or refer to the previous Yang Yuanzhao design, there is already this difference, in order to increase the temperature of the fluid, made some designs, these are Li Mingsheng according to experience, in the actual work, a little bit of improvement, the previous several trial runs, the effect is very good, the calcination is very sufficient, the quality of the cement produced is also good.

The fire burns, not coke, or heavy oil, which is commonly used in later generations, but coal, which is the best of anthracite, but the coal with higher heat is selected from the anthracite.

The conveyor belt, transporting the materials, enters the calciner, according to the previous design, a layer of coal, a layer of powder, layer by layer, like a sandwich, in each layer, there are special vents to ensure the temperature of the flame.

In later generations, the most important thing in the blast furnace is oxygen, whether it is oxygen blowing the top or oxygen filling the bottom, it is to increase oxygen, so that the coal can be fully burned, and the oxygen used in it is pure oxygen, mixed with coal, and the heat of combustion is quite high.

Oxygen what, there is no way to achieve it for the time being, unless Harpy from Germany, get a high-pressure closed container, the high-pressure closed container is enough, he has a lot of methods, provide enough pressure, in this case, the air liquide decomposition method, you can get relatively pure oxygen, nitrogen and other gases, even inert gases, it is also possible to obtain, Yang Yuanzhao knows very well that inert gases, especially helium with a molecular weight of 2, is a safer and more reliable gas than hydrogen.

Before the complete development of airplanes, it was hot air balloons and airships that dominated the skies, especially the latter, a behemoth zeppelin, which could bring suffocating air pressure, but the reason why airships did not continue to develop was because of hydrogen itself.

Hydrogen is a strong oxidizing agent, driven by temperature, it will react violently with oxygen, emit heat, and generate oxidation product water, which makes all hydrogen balloons and airships composed of hydrogen, the reliability is not high, once it is reduced to the height that the machine gun or artillery fire can touch, hit a bullet or cannonball, the airship and hot air balloon will become an air torch, and even its own safety can not be guaranteed, let alone air suppression.

Helium is a rare gas in the air, accounting for a very small part of the total amount of air, but they are very stable, under common conditions, it is almost difficult to react with other substances, this is an excellent hot air balloon and airship added material, especially helium, its atomic weight is only 2, just one higher than hydrogen, is the best alternative material.

In the case that the engines and the overall design of the aircraft did not reach a height, the hot air balloons and airships filled with helium had a huge effect on the air power, and before the aircraft was solved, they were the best tools for transportation and air suppression.

The furnace is burning, because the total is reasonable, most of the coal has been fully combusted, the large blower, the air is injected into the calcining furnace body, the flame tongue is rapid, the surrounding temperature rises rapidly, and the high-temperature exhaust gas is specially introduced into a circulating volume, used to heat water, this hot water, will be recycled, part of it is connected to all parts of the production workshop, used for central heating in winter, there is no way in summer, so it has to be used as hot water for the bathroom, cement plant, how greening, No matter how the protective cement itself is a granular fine crushed thing, the dust pollution is very large, and then pay attention, it is also white in, gray, or black out.

Not far away, other workshops, personnel have begun to leave, only the calcination workshop, leaving enough workers, waiting for the end of calcination, the real yàn of the whole machine, basically has come to an end, next, is to see how much cement can be produced this time, and what is the quality of cement.

Compared with other factories, this item is the easiest to estimate, scientific formula, scientific management, and accurate configuration of the machine, which are the basis for success, and reduce the possibility of failure to a minimum.

Other workshops, have been cleaned, leaving the necessary workers, the rest of the production line, are withdrawn, at this time, less than dinner time, these workers will be under the leadership of the team leader, for today's trial production was summarized, whether it is experience, or lessons, to sort out, this is a necessary step every day, is Yang Yuanzhao has always been a tone of the point, workers in each other's summary and learning, has been greatly improved, the level rose quickly.

The calcination of the flames, almost carried out for more than 2 hours, about the time of nightfall, the black smoke finally slowly thinned down, the whole production entered the last step, shipped, the high-temperature cement, must be in a special warehouse, stand, wait for the temperature to drop, this step, is also all controlled by machinery, when it took ten minutes, the production of cement, put into the right position, the day's trial and operation, finally completed thoroughly.

The workers who stayed behind began to pack up their things, leaving the necessary staff on duty, and the rest returned to the dormitory, as early as before, when the calcination began, Liu Shu announced that he had added vegetables to celebrate the success of this trial production, and he even specially got five pigs, ten cows and twenty sheep, a large pot of stew, white flour steamed buns, and enough.

It's been more than a month, the workers' food is generally good, basically you can see the meat every day, the steamed buns are full, eat a full stomach, do not represent the wind, for the workers, the rich food, is second only to the reward of remuneration, Baotou here, close to the Mongolian grassland, beef and mutton has not been lacking, the lack is pork, cheers, so that every worker's face is smiling, everyone is looking forward to the evening dinner.

The workers left in a neat line and slowly left the factory area, but Li Mingsheng and Yang Yuanzhao came to the outside of the warehouse where cement clinker was stored.

Because it was sent directly after calcination, the temperature in this workshop was absolutely purgatory, with tools, without opening the warehouse, ten samples were taken, and water and concrete were used separately for realization, and an hour later, Li Mingsheng dragged his tired body and came out of the real room, not caring about wiping the cement on his face, and grinned: "The production was a great success!" ”RS