Rebirth of Business Domination of the Two Worlds

Chapter 171 Development of Caigu
Tianling Continent,

colorful valley.

After several months of development, the construction of Caigu is proceeding in an orderly manner, and the construction of various projects is in full swing.

Caigu, the production base of refractory bricks.

Workers have burned dozens of furnaces of refractory bricks. After continuous testing and analyzing the reasons, the pass rate of the product is getting higher and higher. From the initial 20% pass rate, it has increased to 33% pass rate, which will be close to that of Momo Established pass rate standards.

Two workers are holding test tools and sampling the surface dimensions of the refractory bricks that were baked the day before yesterday.

The refractory bricks just out of the oven change from hot to cold, and the internal stress is released, and the size changes greatly, so it is not suitable for inspection.

"Supervisor, according to the standard given by the young master, the pass rate of this furnace brick is also poor. Three out of five bricks are unqualified." A quality inspector reported the data to Fang Shi, the supervisor of the engineering construction team.

"Well, the cracks are still too big and many, and some of them are not strong enough. Everyone has watched the video of making refractory bricks. Think about the problem." The young master has not been to the base for a long time. He gave acceptance criteria for clay bricks for acceptance.

The pass rate of the refractory bricks formulated by Mo Mo is 35%, and Fang Shi's goal is 40%, at least to satisfy the young master.

Fang Shi remembered that the young master said that whether the quality inspection is qualified is based on the standard.

Take clay bricks as an example. Check the appearance first, depending on the size, depth, and number of cracks. If there are too many cracks, molten steel will penetrate into the gaps between cracks and break easily.

The visual inspection items also include the detection of the length, width and height of the refractory bricks. The error must be within the standard range, the particle size, the pass rate is low, and random inspection is not possible. 100% initial inspection is required, and then a re-inspection is required.

They also found that after the initial inspection, there is no guarantee that all the tested products are qualified, and 5% of the unqualified products will flow into the re-inspection process, so the idea of ​​the re-inspection process proposed is correct.

Although there are inspection standards, there are still some errors in the results due to the different technical levels of the personnel and the complex surface of the products.

It took them a long time to learn just to learn detection. Fortunately, they have been learning mathematics and science for several months, and they already know how to use new tools.

After the appearance inspection, a simple pressure test is also carried out.

"The appearance quality is fine now. I think we still have to start with the raw materials. The clay brick material composition is too complicated and not uniform enough, which has a great impact." A skilled worker analyzed.

"That's true. The surface of refractory bricks with high impurity content will be very rough. Those refractory bricks that meet the quality standards are uniform in color and smooth in surface. Maybe we can screen the raw materials many times to remove impurities." Fang Shi thought for a while, and felt Yes, some details are easy to overlook.

"Director, what to do with those unqualified refractory bricks? It feels a bit wasteful to throw them away." Another skilled worker asked.

Fang Shi said seriously: "Anyway, it can't be used in the construction of cement kiln furnaces and iron-making blast furnaces. It must follow the young master's standards. What to do if something goes wrong, no one can afford the loss. Quality comes first, how many times have I been emphasized! "

"Of course I know it can't be used there, Director, is it okay to use it in building a house or building an iron furnace?"

"Okay, as long as it doesn't affect you. Just keep an eye on the inspection here, I'm going to visit the cement project base." Fang Shi said again, and handed over the inspection work to the team leader of the quality inspection department.

The cement project has been going on for several months, and cement has been produced so far, but the daily output is not high.

Fang Shi rode to the cement project site to check the production situation.

Two grinding and one burning in cement production: raw meal preparation, clinker calcination and cement grinding.

Qinglong Group’s raw material preparation method for making cement is relatively rough. First, the stones are transported to the stockyard by animal carts, and the large stones are broken by force with hammers.

The crushing of large rocks into small stones is completely done by human power, which is completely different from the earth's crusher.

This is because Qinglong Group does not have a high-power crusher.

Only after crushing the big stones into small stones, the crusher made by the blacksmith's house is pushed forward for deep crushing.

If the stones are not crushed and reach a powder state, the preparation of raw materials will be uneven, and it will be difficult to calcine, and the reaction will be incomplete.

Speaking of it, the crusher is very easy to use. It is powered by a waterwheel and connected to the crusher. As long as the small stones are slowly pushed into the hopper, after the first round of vibrating screen, the rotating drum will squeeze the stones that fall from the vibrating screen. Small stones, then get finer stones, and then flow into the tumble mill, and the fine-grained powder will fall from the second round of vibrating screen into the semi-finished hopper.

The powder has to be calcined in the preheating furnace and calciner built by ourselves, and finally passed through the rotary kiln, and finally the cooked cement block is produced.

After the cooked cement is cooled, it is crushed again, and the crushing method is processed in the same way, and finally the cement powder is obtained, which is put into wooden barrels for storage.

These methods are the new cement production methods developed by Fang Shi and the others after watching the cement production video, and after being reminded by the young master, according to Caigu's situation.

This is the theory, and there are video guides, but in the actual production process, they failed many times before they succeeded.

At present, the daily output of cement is 15 tons. If calculated based on nearly [-] workers, the per capita output is less than one ton.

After the refractory brick project is completed, more workers will be invested, and the daily cement production will be greatly increased.

As soon as Fang Shi arrived at the cement base, a young man about 25 years old hurried to him.

This young man is Hao Lu, and he is in charge of managing the cement warehouse.

"Master, supervisor, it's not good!" Hao Lu said anxiously.

"What's the matter? In a panic, what happened?"

"It rained heavily last night, the roof of the warehouse leaked, and the cement in many wooden barrels was wet."

"Let's go and have a look." Fang Shi was so worried when he heard the words, he ran to the warehouse first after speaking.

May is already the rainy season, they have made preparations early, but there are still mistakes.

If the cement produced is completely soaked by rainwater, Fang Shi really doesn't know how to explain to the young master.

After a while, the two came to the warehouse, picked the mud off the shoes, and then walked into the warehouse.

After Fang Shi entered the house, he looked up at the roof and saw that some parts of the roof were still leaking. The water droplets merged into a thin line, dripping on the wooden barrel, splashing one after another, and there was also water flow on the ground.

Fang Shi sighed, then knocked open the wet cement barrel, and rubbed the wet cement. Some of the cement had already formed lumps, obviously unusable.

Some of the wet cement has been soaked overnight, and some have solidified.

"Director, I think wooden barrels are difficult to seal the cement well. Even if it is not soaked by rain, if the air is humid, moisture can still pass through the gaps in the wooden barrels. Our cement is also stored for a short time, so we have to find a way to seal it tightly. , Is it okay to seal it with paper?" Hao Lu suggested, also worried.

"Well, I know that there is no good way at present. It is too wasteful to use paper to wrap, and the paper is easy to get wet. It would be great if there is a moisture-proof paper cloth like the young master's family."

"Group leader, can you use clay or a layer of cement to seal the gap between the wooden barrels, so that you won't be afraid of rain, but when you need to use it, it's more troublesome to knock off the lid." Hao Lu said briefly Thinking, an idea suddenly flashed through my mind.

"Hey, your brain is really flexible, this is a good idea." Fang Shi patted him on the head, "Is there any other good idea to prevent moisture, think again."

"In this warehouse, it is best to store the cement barrels on a higher floor, so as not to be afraid of water flow, and to prevent the ground moisture from penetrating into the barrels. The roof of this warehouse does not need wooden boards. It has to be covered with tiles and then sealed with cement. .”

"Well, it's a good idea. Send people to implement it right away. I'll register your merits and report to the young master." Fang Shi encouraged.

"Hey, how embarrassing that is."

"Master likes people with clever brains, don't be shy, and work harder in the future." Fang Shi said appreciatively, "You see, there are many problems with cement in wooden barrels. Making wooden barrels is troublesome and expensive, and it is also troublesome for us to use cement. , see if you can make a cheap and easy-to-use bag, just like the cement bag in the video, I will leave this job to you.”

"Okay, supervisor. If you can ask the young master, what is the cement bag made of?"

"Well, I don't know, it feels like paper, but paper has such good toughness. I will ask the young master next time." Fang Shi also couldn't figure out the cement bag. The young master's things are amazing. They have Many don't understand why.

(End of this chapter)