A nation's industrial development begins with junior engineers.

Chapter 831 Let's evolve directly into a production line!

Jiang Xia had anticipated this question. Instead of directly voicing complex engineering principles, he smiled and used an analogy: "Comrade Cheng Gui, have you ever seen wheat winnowed in the countryside? Or... imagine roasting chestnuts."

"Winnowing wheat? Roasting chestnuts?" Zhang Chenggui was stunned. What did this have to do with pharmaceuticals?

“That’s right!” Jiang Xia gestured. “When winnowing wheat, the grains are tossed up and scattered by the airflow, and the light impurities are blown away by the wind. It’s the same with roasting chestnuts. The chestnuts are constantly rolled in hot sand so that they are heated evenly.”

He pointed to the rudimentary drying oven and said, "Our current drying method is like spreading chestnuts flat on an iron plate to roast. The heat is too high at the bottom and too low at the top, so some will definitely burn and some will remain raw."

He continued to guide Zhang Chenggui's thinking: "If we make a sealed container and blow controlled hot air in from the bottom, so that the force of the air can just 'blow' the powder or tiny wet particles up and down, making them float and tumble in the hot air, just like wheat grains flying in a winnowing basket or chestnuts rolling in hot sand."

At the same time, we spray the liquid medicine or adhesive that needs to be coated into this 'boiling' powder bed in a very fine mist, so that the surface of each small particle is evenly coated with the liquid medicine and instantly dried by hot air.

"If the particles grow and dry layer by layer, can mixing, granulation, and drying be completed in one step?"

Cheng Gui, the young girl, was technically savvy, though not much. But upon hearing the incredibly vivid analogy of "fluidized bed granulation," a flash of inspiration seemed to strike her! She instantly grasped the core idea: "I understand! You want the material to complete all processes on a flowing hot air 'bed'! This... this is theoretically feasible! The key is... the air, the heat, and the liquid spray!"

“That’s right!” Jiang Xia was very happy to see that the other party understood immediately. “The core is three controls: wind! The wind speed and air volume must be just right, enough to boil the material but not blow it away.”

Then comes the heat! This requires a stable and controllable temperature so as not to damage the efficacy of the medicine.

Finally, the liquid! The atomization should be fine, and the spray speed should be uniform.

Once these three points are coordinated, the main structure of the machine can actually be made relatively simple.

Simple?

It's not simple at all!

Cheng Gui, a young girl accustomed to chemistry experiments, was now working her brain at lightning speed: Although she didn't quite understand it, it sounded impressive, but this kind of thing wasn't so easy to make! Especially this precise combination of "wind, heat, and liquid," it was almost identical to her own "chicken embryo screening method"...

Do we have to try each parameter one by one?

Jiang Xia, however, was already brimming with excitement, his creativity flowing like a spring. He was eager to put his ideas into writing. "Let's go! To your drawing room!"

“There’s no drawing room…” Shiroki shrank back like a startled rabbit, and suggested in a low voice, “How about my drug analysis lab? I can move the bottles and jars away quickly…”

Jiang Xia's mind was now filled with all sorts of mechanical components. What he had just described to the young girl Cheng Gui was actually a fluidized bed granulation dryer, which is crucial in the modern Chinese medicine pharmaceutical industry. And this was just one of the core components of his envisioned fully automated Chinese medicine granule production line.

Note that this is one of the steps.

In addition, a feeder, crusher, and vibrating screen were also in his plans, and even a dynamic extraction tank and a centrifugal filter were added.

Finally, the entire process ends with a granulator and a V-type mixer, and is finished with an automatic metering filler.

Thus, a complete traditional Chinese medicine preparation production line is presented!

At this moment, art is complete!

……

Cheng Gui's drug analysis room.

At this moment, thanks to the efforts of Lao Wang, who has a psychological aversion to chemical experiments, and Company Commander Tang, a large space has been cleared.

Jiang Xia first marveled at how much Cheng Gui was valued by the factory director, being able to have such a large space all to herself. But when his gaze swept over the several stacks of densely filled experimental record books on the table, he realized that this girl had earned all of this entirely through her diligence and solid work.

At that moment, Jiang Xia, focused solely on drawing, had no time to think about anything else. He simply lay down on the cement platform, took out the blueprints from his bag, and began to work.

The first outline is an upright, slightly tapered cylinder as the main chamber. The structure of the air distribution plate is clearly marked at the bottom, with an arrow pointing to it, which reads "Equalizing Chamber - Air Inlet (requires heating and filtration)".

The top features an expanded structure, with a simple cyclone separator drawn next to it, labeled "Exhaust gas discharge, entrained fine powder recovery".

Next, the core atomizing device was refined. A spray gun-like mechanism was drawn, with dashed lines indicating its connection to the liquid delivery pipe. Next to it, it was noted that "compressed air atomization, pressure must be adjustable".

For the heating part, Jiang Xia temporarily drew a simple diagram of the heating wire winding. Then, Jiang Xia beckoned to Lao Wang with his finger, and Lao Wang immediately took out the brick "Red Dragon's Eye".

While calculating key parameters such as air volume, cross-sectional area, and injection rate, Jiang Xia muttered to himself:

"The cavity height must be sufficient to ensure the particle residence time..."

"The opening ratio of the air distribution plate is crucial; it must have low resistance while ensuring uniform airflow..."

"There's no need to worry about the processing method; it seems that Professor Zu Tong's laser generator can be used..."

"The position and angle of the spray gun... we need to calculate that carefully!"

At first, the little girl, Cheng Gui, stood to the side, watching curiously. But as the unprecedented device on the blueprint gradually became clearer and more complex, the expression on her face slowly changed from curiosity to amazement, and finally to solemn respect.

Combined with Jiang Xia's seemingly self-talking mutterings, she finally understood that Jiang Xia wasn't just daydreaming; he was actually designing, and each component had a clear function and interrelationships.

Old Wang and Company Commander Tang stood quietly at the door, watching Jiang Xia, who was writing furiously at his desk.

After a while, Old Wang suddenly slapped his forehead: "Hey, we should go find this kid something to eat. If he faints, we'll both be in trouble!"

"Hey? Jiang used to get dizzy all the time? Old Wang, you're really not up to par!"

Old Wang was so frustrated he wanted to punch himself...

This Company Commander Tang is now completely under Jiang Xia's control...

Hmph! I won't even bother saying it!