After a second thought, he understood: "You want to use radiation for disinfection?"
"Both alcohol disinfection and moist heat methods have disadvantages. It would be better if they could be sterilized by radiation."
"This won't work, I can't make the decision, and the Planning Commission will definitely not agree. The X-ray machine still has radiation shielding issues, so forget it." Shi Niaoren said, "If you really need it, just transport it to the hospital.
The radiation room will do it."
Ji Situi looked at the chemical industrial zone that was beginning to take shape in front of him, with many towers and criss-crossing pipelines. He felt a great sense of satisfaction for a moment. The most critical facility across the group had finally taken shape. Although it was not possible to start mass production of soil
Starting with cement and bricks, the construction of Bopu's chemical industrial zone began. Due to the lack of various manpower and material resources, the entire project has been maintained in a slow and steady state. During the period, numerous equipment installation problems were encountered.
The person in charge of the chemical industry was driven crazy - he had worked in a chemical plant, but there was a big difference between working in a chemical plant and installing a chemical plant.
Looking at the various towers that were finally erected in front of me: comprehensive tower, ammonia evaporation tower, ethanol distillation tower, ammonia washing tower, absorption tower, decarbonization tower, benzene removal tower, distillation tower, synthetic ammonia carbonization comprehensive tower, synthetic ammonia
Saturated hot water tower, shift gas desulfurization tower, saturated hot water tower... These large and small towers and the pipes connecting them add up to more than 300 tons. Just unload them, transport them here, and then one by one
It was a miracle when it was installed - it took countless manpower, racked one's brains, and cost several lives and injuries. In the end, even the Egyptian artificial pyramids and the Celtic Giants' array were restored in the documentary.
All means were used. Fortunately, there were many capable people with experience in chemical plant construction and construction, otherwise he would have gone crazy by himself.
Of course, this set of equipment is nothing in the 21st century: 800 tons of synthetic ammonia and combined alkali production system and a coal coking chemical system. When customizing and purchasing the equipment, the manufacturers found it strange. In terms of output, the current small chemical plant in the county town is
They all produce more than them. Their power lies in their strong joint product manufacturing capabilities. The simplest example: In addition to producing ammonia, and then nitric acid, the synthetic ammonia industry can also use ammonia as a raw material to react with salt to produce soda ash.
And many by-products. It can be said that with the ammonia industry, travelers have permanently occupied the top of the food chain in this time and space. No one can compete with the ruling group that controls high explosives and high-efficiency fertilizers.
Ji Sixui's heart was filled with excitement when he saw it, and finally he sighed: There's a shortage of coal!
Coal is not only the raw material for production of these two systems, but also necessary for supporting facilities. The large amount of steam, hot water, and electricity required for production are all provided by coal. The large boiler of the Bobu Thermal Power Plant under construction continues to look like a pot
It seems unreliable to use firewood to burn steam like a camel machine.
The curse of coal shortage has been lingering on his head. Once it is operational, the amount of coal required by the entire chemical industry zone far exceeds the amount of coal that can currently be transported from Guangdong. And these coals must bear the increasing appetite of steel plants.
Cement plants and a growing number of boilers - huge productivity is limited by transportation bottlenecks.
Once chemical industry enterprises start production, they generally do not stop operations unless there are special circumstances such as maintenance. With the current coal shortage situation, once operations start, it will be embarrassing to wait for the rice to be cooked without raw materials.
The rumbling sounds of machinery from the shipyard not far away and the constant loud rolling sound of steel from the steel plant soothed his uneasiness a little. An epoch-making ship was being built. This was the first ship designed and manufactured by Chuang Chuangzhong.
A wooden hull ship with iron ribs - the complexity of the process of building a sailboat with an all-timber structure made people in the mechanical department lose confidence. The shortage of large-scale timber used to make keels and ribs; the cumbersome processing of wood;
It was heavy, weak in strength, and had a low payload ratio. This made Wen Desi determined to try to build a hybrid large-scale iron-ribbed wooden hull ship earlier than planned to carry the urgently needed bulk cargoes.
The ship's keel was laid after the expedition team returned from the island's voyage. In order to meet the demand for ship material production, the steel plant is manufacturing and installing a steam forging hammer. This is the largest industrial equipment ever built by the Cross Group.
All the elite soldiers and generals of the committee slept in the factory and worked 24 hours a day.
The ship's payload is expected to reach 1,200 tons, far exceeding all current ships. The huge hull and powerful hybrid power are enough to allow it to escape most maritime threats.
However, the demand for three acids and two alkali is already very urgent, and we cannot wait for the large quantities of coal to arrive. The finished products brought from another time and space are about to be used up, and the small amount of sulfuric acid distilled from raw materials such as soap alum is too little.
――It’s hard to even describe it. There are more and more places that require sulfuric acid and caustic soda, so Ji Situi had to settle for the next best thing and decided to build two sets of simple chemical equipment before the coal supply became unstable―
―Fortunately, the raw materials of these two processes do not require coal, and the equipment requirements are also easier.
One set is for the production of caustic soda by electrolysis of table salt, and the other is for the production of sulfuric acid by the contact method of pyrite. These are backward processes that should be eliminated, causing great waste and serious pollution. Fortunately, the construction requirements are extremely low, and it is reckless and barbaric.
The production is adequate. This small factory can also be used as a supplement after the United Chemical Plant is put into operation in the future. Moreover, the expedition fleet transported almost 20 tons of pyrite back from Wanning, which can be enough to produce sulfuric acid for a while.
The contact-method sulfuric acid plant manufactured by Ji Sidui is located downwind at the edge of the industrial zone, far away from residential areas and farmland. The complete set of design drawings and construction techniques were obtained from the big library. It is crude and ignorant.
The terrifying level of security made Ji Sidui take a breath of cold air - he only knew that there were local methods of making sulfuric acid in the world, but he did not expect that local methods could reach such a terrifying place. No wonder the teeth of the Eighth Route Army military and industrial soldiers back then were sore.
broken.
The overall construction is not difficult, it can even be said to be simple. The acid tower is made of a large glazed ceramic water tank. The instructions in the book are to use ceramic tanks. Travelers can now manufacture this thing in batches. Because
It has a wide range of uses and is corrosion-resistant, and there are many orders for it. Xiao Bailang has accumulated enough experience from countless failures. He is not only skilled in making water tanks but also very efficient - he uses a mechanized demoulding method.
When it comes to manufacturing cylinder blanks, the level of firing also puts local workers at a disadvantage - Travelers have industrial thermometers and combustion control methods. As long as they understand the temperatures at each stage of production, they can accurately control the rise and fall of the kiln temperature. This quantitative ability
It is far more accurate than workers’ personal feelings of skin temperature by looking at it with their eyes.
However, Ji Situi does not plan to make a custom-made water tank. The water tank is a helpless substitute. Since it is necessary to use a substitute, it is better to replace it with a higher technical content. Why bother to knock off the bottom of the water tank and the interface between the tank and the tank?
He had to find something to seal it everywhere to prevent the acid mist from leaking - since he didn't have any particularly useful acid-resistant sealing material, the local sealing method would definitely leak - he also wanted to continue eating with his own teeth for the rest of his life.
So what he asked Xiao Bailang to make was a complete ceramic reaction cylinder with a diameter of 700mm and a height of 3.65 meters. This almost made Xiao Bailang crazy - it was too difficult. It is difficult to burn oversized ceramic products.
Made.
After Xiao Bailang and others struggled for several days, they finally came up with a compromise product. The entire reaction cylinder was composed of two parts. However, in order to enhance the sealing, the connecting part was sleeved, and the sealing effect was pretty good.
.Using some acid-resistant material to seal it and making major changes will do the trick.
Then he ordered a batch of cast iron pipes from the metallurgical department. The lump ore furnace for burning pyrite was built with refractory bricks. There were four burners inside, each with a hearth of 0.3 square meters. The furnace bars and furnace doors were all made of refractory bricks.
It is made of cast iron so that it can be easily sealed and does not leak. A cyclone dust collector is built above the furnace with refractory materials. In order to meet the needs of combustion and dust removal of the entire furnace, Ji Situi bought a 2-horsepower small blower. With this little power
It is not a problem in Bobu Industrial Zone.
The pyrite is first crushed into fine particles in the ore crusher, and then put into the lump ore furnace for roasting. The furnace gas comes out of the refractory brick cyclone dust collector and then enters the first converter.
The gas is cooled through the cast iron pipe and then sent to the second converter to continue the reaction.
The original plan for the first converter and the second converter was to use water cylinders, but Ji Situi decided to use iron sheet oil drums instead. Both the converter and the dust collector need to be insulated, and Ji Situi has no ready-made insulation materials available, so here it is
The outer frames of the three objects are built with bricks, and the surrounding gaps are filled with plant ash. Iron catalysts are placed in each of the two converters for catalysis.
After the gas comes out of the converter, it is cooled by the cast iron pipe and then sent to the absorption tower with a hand pump to extract the acid. After cooling and recovery, the finished acid is obtained. The concentration is 98%.
The acid tower is Xiao Bailang's three-section combined ceramic cylinder. Xiao Bailang's tolerances are well controlled, and it is easy to assemble it in place after lifting. The inside of the acid tower is filled with broken tile cylinder pieces stacked together. It is sealed externally.
The material is made of water glass mixed with porcelain powder - for this purpose, a lot of porcelain was smashed and then ground into powder. Fortunately, there is only one place to be sealed, and just pile more. This material has a
The characteristic is that it will harden and increase in strength when exposed to acid. It is a relatively easy-to-use acid-resistant sealing material.
The coastal winds here in Lingao are strong, and there are one or two typhoons every year. The entire acid tower is fixed on all sides with brick pillars.
After the core equipment is completed, other water-cooling and recovery devices can be easily completed. Most of the transmission pipelines use ceramic pipes, and some use cast iron pipes. Only the valves last Ji Situi did not make simple, but used real ones.
Special valves for the chemical industry. He personally inspected every seal. After the inspection was correct, Ji Sixui ordered preparations to be started for production.
Ji Situi selected a few cautious people from the labor force to be operators. He first took a three-day safety production class. However, in the first few days of production, Ji Situi decided to only take the time travelers to do it himself, and the indigenous operators
Watching and learning from the sidelines - he was not worried about these farmers who had just put down their hoes for a few days. If a serious casualty accident occurred, the tragic chemical burns would cast a huge shadow on future workers.
For this era-changing industrial development, Ji Sixui led a group of chemical enthusiasts and his workers to work for a whole day. He collected a large amount of dry firewood and also allocated a lot of coal from the Planning Commission.
The quality of Ning pyrite ore is quite good. After testing, the average sulfur content is above 50%. The ore is first sent to the ore dressing plant for beneficiation and then crushed into small pieces. Loading and unloading workers use manpower booms to move baskets of ore.
A long train of flatbed trucks on the track. Then two workers climbed onto the diesel tractor in front. The driver paid attention to a high tower a few hundred meters away. When the red flag turned into a yellow flag, a worker started the diesel engine and the green flag flashed.
As soon as I got up, the whole train began to move, slowly heading towards the sulfuric acid plant.
While Ji Situi organized manpower to build the sulfuric acid plant, the rail transportation built under the leadership of Lingao Construction Company soon extended here. Now, various factories, warehouses and docks in the two industrial zones of Bairen and Bobu
The track connections between them have been completed - flatbed trucks, driven by diesel-powered tractors, are running full of various raw materials and finished products, making muffled horn sounds from time to time.
After the last train of pyrite ore arrived, several hills had been piled up after Ji Si retreated. Firewood, coal, pyrite and a lot of lime were piled up.
He asked the indigenous workers to light firewood at the ash outlets of the four furnaces of the lump ore furnace and start the furnace heating process. The whole process lasted for almost 48 hours, so Ji Situi took the time to go to Xiao Bailang's place - this
The first time he ordered a sulfuric acid tank.
"The jars have been made." Xiao Bailang pointed at a row of jars on the open space. These jars are all hung with pea green glaze, have ears on both sides, and are similar in shape to small wine jars, but the jar body is very straight.
.
"According to your request, each has a capacity of 25 liters, and has threads and a screw-threaded lid. It's really rare!" Xiao Bailang smacked his lips, "Ceramic jars have threaded lids."
"This is a tank containing concentrated sulfuric acid. It can't be used unless it is sealed tightly."
These pottery jars specially used for storing concentrated sulfuric acid can be tightened with threaded lids - in fact, this alone cannot guarantee sealing. According to the traditional method, asbestos rope is dipped in water glass and wrapped around the mouth of the jar and then tightened with the lid.
, but not to mention asbestos ropes, there is not much water glass in the hands of travelers. Water glass can be made in the future, but asbestos may not be available without trade. Fortunately, nature has another natural corrosion-resistant material: