Zhan Nian thought about it and he understood: "You want to use radiation to disinfect?"...
"Both alcohol disinfection and moist heat methods have disadvantages. [Read full text] It would be great if it could be sterilized by radiation."
"This won't work. I can't make the decision. The Planning Commission will definitely not agree. The optical machine still has radiation shielding problems, so forget it." Shi Niaoren said. "If you really need it, you can transport it to the radiology room of the hospital and do it."
Ji Sixui looked at the chemical industrial zone that was beginning to take shape in front of him, with towers and pipelines crisscrossing it, and he felt a great sense of satisfaction for a moment. The most critical facility for this traversal group has finally taken shape. Although the construction of Bopu's chemical industrial zone began as soon as mass production of soil, cement and bricks began, due to the lack of various manpower and material resources, the entire project has maintained a slow pace of progress. The countless equipment installation problems encountered during this period really drove the person in charge of the chemical industry crazy. He had worked in a chemical plant, but there is 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 refining 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 install them one by one. It can be called a miracle. It took countless manpower and brains, and cost several lives and several injuries. In the end, even the Egyptian man-made pyramids restored in the documentary and the Celtics' various methods of building the Giant Array were used. On. Fortunately, there are many capable people in various fields who have experience in chemical plant construction and construction, otherwise he would definitely go crazy if he had to rely on himself.
This set of equipment is certainly nothing in the world: a concave stewed ammonia synthesis and combined alkali production system and a coal coking chemical system. When customizing and purchasing the equipment, manufacturers found it strange - in terms of output, small chemical plants in the county now have Produce more than they do. Their power lies in their strong joint product manufacturing capabilities. The simplest example: In addition to producing ammonia, the ammonia industry can also produce nitric acid. Ammonia can also be used as a raw material to react with table salt. Soda ash is produced, along with many by-products. It can be said that with the ammonia synthesis industry, time travelers have permanently occupied the top level of the food chain in this time and space. No one can compete with the ruling group that controls high explosives and high-efficiency chemical fertilizers.
Ji Sixui's heart was filled with excitement when he saw it, and finally he sighed: Quedie!
Coal is not only the raw material for production of these two systems, but also necessary for supporting facilities. The large amounts of steam, hot water, and electricity required for production are all provided by coal. It seems unreliable that the large boiler of the Bobu thermal power plant under construction will continue to use firewood to burn steam like a boiler.
The curse of lack of coal has been lingering on his head. Once it is put into operation, the amount of butterfly charcoal required by the entire chemical industry zone will far exceed the amount of coal that can currently be transported from Guangdong. And these coals have to bear the growing appetite of steel plants, cement plants and an increasing number of boilers. The 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 it starts running, it will be embarrassing to wait for the rice to be cooked without raw materials.
The rumbling sound of machinery from the shipyard not far away and the constant sound of huge steel rolling 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 Chuangzhong. The complexity of the process of building an iron-rib wooden hull ship and an all-timber structure sailboat made people in the mechanical department lose confidence. The lack of large-scale timber used to make keels and ribs; the cumbersome processing of wood; the weight of wooden-structure ships , the strength is weak and the payload ratio is too low. This made Wen Desi determined to try to build a hybrid large-scale iron-ribbed wooden hull ship earlier than planned to carry the bulk cargoes that are urgently needed.
The ship began laying the keel after the expedition team returned from the island's voyage. In order to meet the demand for ship material production, the steel plant was 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 Works Energy Commission slept in the factory and started working every hour.
The ship's payload is expected to reach 1,200 tons, far exceeding that of all current ships. Its huge hull and powerful hybrid power allow it to escape most maritime threats.
But the demand for three acids and two alkalis is already very urgent, and we can’t 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 so small that it can't even be filled between the teeth. There were more and more places where sulfuric acid and caustic soda were needed, so Ji Situi had no choice but to settle for the next best thing and decided to install two sets of simple chemical equipment before the supply of charcoal was not stable. Fortunately, the raw materials for these two processes did not need to be used. The media and equipment requirements are also easier.
One set is for producing caustic soda through home-made electrolysis of table salt, and the other is for producing sulfuric acid through pyrite contact method. These are backward processes that should be eliminated, resulting in huge waste and serious pollution. Fortunately, the level of construction requirements is extremely low, and reckless and brutal production can also be done. 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 a full amount of stewed pyrite back from Wanning. Making sulfuric acid is enough for a good eye.
The contact-method sulfuric acid plant manufactured by Ji Situi 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 Grand Library. The horror of its simplicity and disregard for safety made Ji Sidui take a breath. He only knew that there were local methods of making sulfuric acid in the world, but he did not expect that such a local method could reach such a terrifying place. No wonder the teeth of the Eighth Route Army military and industrial soldiers back then were damaged by acid.
The overall construction is not difficult, it can even be said to be simple. The acid tower is made from a large glazed ceramic water jar. The instructions in the book say to use a ceramic jar. Travelers are now able to manufacture this thing in batches. Because it is versatile and corrosion-resistant, it is ordered in large quantities. Xiao Bailang has accumulated enough experience from countless failures. He is not only skilled in building water tanks, but also very efficient.
He used a mechanized demoulding method to manufacture the cylinder blanks, and the firing level also put local workers at a disadvantage. The traversers had a period of engineering and combustion control. As long as we understand the temperature at each stage of production, we can accurately control the rise and fall of the kiln temperature. This quantitative ability is far more accurate than workers’ personal feelings of seeing with their eyes and feeling the temperature of their skin.
But Ji Sidui didn't plan to order a water tank. The water tank is a helpless substitute. Since you want to substitute. Simply replace it with a higher technical content. Why bother to knock off the bottom of the water tank and find something to seal the interface between the tank and the tank to prevent the acid mist from leaking? Since he didn’t have any particularly useful acid-resistant sealing materials, there would definitely be leaks with the local sealing method. He still wants 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 tank with a diameter and height of 3 calcium meters. This almost made Xiao Bailang crazy. It was too difficult. Large ceramic items are difficult to fire.
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, but in order to enhance the sealing, the connected part was sleeved. The sealing effect is pretty good. It would be fine to use some acid-resistant material to seal it and make a big change.
Then he ordered a batch of cast iron pipes from the metallurgy department. The lump ore furnace for burning pyrite is built with refractory bricks. There are four furnaces inside, each with a hearth of 100 square meters. The grate bars and doors are made of cast iron to seal easily and prevent leakage. A cyclone dust collector is built with refractory materials above the furnace. In order to meet the needs of the entire furnace for combustion and dust removal, Ji Situi bought a 2-horsepower small blower. This amount of electricity is not a problem in the Bopu Industrial Zone.
The pyrite is first crushed into fine particles in a special ore crusher, and then put into a lump ore furnace for roasting. The outgoing furnace gas passes through the refractory brick cyclone dust collector and then enters the first converter. The gas in the first converter is cooled by 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 dust collector need to be insulated. Ji Situi has no ready-made insulation materials available. Just use bricks to build an outer frame around these three objects, and then fill the surrounding gaps with plant ash. Iron catalysts are placed in each of these two converters for catalysis.
After the gas comes out of the converter, it is cooled through cast iron pipes and then sent to the absorption tower to extract acid by hand-shaking mercury. After cooling and recovery, the finished acid is obtained. Concentration yo%.
The acid tower is Xiao Bailang’s three-stage combined ceramic cylinder. Xiao Bailang has a good grasp of the tolerances, and it is easy to assemble it after lifting it. The acid tower is filled with broken earthenware pieces stacked on top of each other. The external sealing material is made of water glass mixed with porcelain powder - many porcelains were smashed for this reason. Then grind them into powder. Fortunately, there is only one place that needs to be sealed, so it will be easy to pile up more. A characteristic of this material is that it hardens and increases in strength when exposed to acid. 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 were not made simple. Instead, they use real valves specifically designed for the chemical industry. He inspected every seal personally. After the inspection was correct, Ji Sidui ordered preparations to be started for production.
Ji Sixui selected several cautious people from among the laborers to serve as operators. First, I took a three-day production safety class. However, in the first few days of production, Ji Sidui decided to take the time traveler alone and do it himself. The indigenous operator watched and learned. He was worried about these farmers who had just put down their hoes for a few days. If a serious casualty accident occurred, the tragic scene of 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. A large amount of dry firewood was collected and a lot of coal was allocated from the Planning Commission. The quality of the Wanning pyrite unloaded from the ship is quite good. After testing, the average sulfur content is above 0. These ores are first sent to the mineral processing plant to be beneficiated and then crushed into small pieces. Loaders use human booms to move baskets of ore onto a long line of flatbed cars on tracks. Then two workers climbed onto the diesel tractor in front. The driver paid attention to a tall tower a few hundred meters away. When the red flag turned into a yellow flag, a worker started the diesel engine. As soon as the green flag came up, the whole train started to move, slowly heading towards the sulfuric acid plant.
While Ji Sihui organized manpower to build a sulfuric acid plant. The rail transportation built under the leadership of Lingao Construction Company soon extended here. Now. Track connections have been completed between the factories, warehouses and docks in the two industrial zones of Bairen and Bobu. Flatbed trucks, driven by diesel-powered tractors, are running full of various raw materials and finished products. , and from time to time there was a muffled trumpet sound.
After the last train of pyrite ore arrived, several hills had been piled up after Ji Si retreated. Firewood, coal, pyrite and lots of lime.
He asked the indigenous workers to light firewood at the ash outlets of the four furnaces of the lump ore furnace and start the heating process. The whole process took almost several hours, so Ji Situi took the time to go to Xiao Bailang's place. This 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 one has a capacity of 10,000 liters, and also has threads and a screw-threaded lid. How rare!" Xiao Bailang smacked his mouth, "Ceramic jars have threaded lids."
"This is a tank containing concentrated sulfuric acid. It won't work unless it is sealed tightly."
These pottery jars specially used for containing 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 the time traveler has not much asbestos rope, not even water glass. Water glass can still be manufactured in the future, but asbestos may not be produced without trade.
Fortunately, nature has another natural corrosion-resistant material: raw lacquer. , if you want to know what happened after the funeral, please log in to 6 Muscles, there are more chapters, support the author, and support genuine reading! ! ~!
