Forty-ninth Festival Talk on Chemical Industry on the Urban Railway
"Of course, of course." A knowing expression appeared on Wu Nanhai's face.
After the brief and grand opening ceremony, Ma Qianxu symbolically pulled the feed switch, and the two thousand firecrackers that had been prepared went off immediately. With the cheers of the crowd, the ceremony was over. No students from Fangcaodi came to help.
There are no banquets or other similar "atmosphere" content.
Recently, the General Office of the Senate issued a notice on "Practice Diligence and Thrift and Oppose Extravagance and Waste", requiring all departments and senators to minimize unnecessary celebrations and reduce expenses on official entertainment and etiquette, so the scene was much smaller. However, as usual after the groundbreaking ceremony
A visit is indispensable.
Visiting and studying is the most effective means of brainwashing, so the Senate never misses any such great opportunity. These Tiandihui customers have already tried a small amount of chemical fertilizers, and have already experienced the magical effect of this "field fertilizer".
I heard that this factory specializes in the production of "fertilizer powder", and everyone wanted to see how this fertilizer powder was made. They all followed Ji Tuisi with great interest to visit the modern fertilizer production.
Lingao No. 1 Fertilizer Factory has a great reputation and occupies a large area of land. However, it has only built supporting projects of 10,000 tons of ordinary calcium phosphate and 4,000 tons of sulfuric acid. There is still a large area of idle land in the factory area. This is
Land reserved for new projects in the future.
The superphosphate production line uses a large amount of sulfuric acid. According to the annual production capacity of 10,000 tons, 3,800 tons of sulfuric acid are needed every year. Such a large amount of sulfuric acid cannot be transported from the current sulfuric acid plant and coal coking combined plant, but the chemical industry lacks long-distance equipment.
Safe and large-scale transportation containers; secondly, triacids and di-alkalis are basic products in the chemical industry. From this point of view, the more production capacity, the better. Although sulfuric acid plants and coal coking combined plants can produce large amounts of sulfuric acid, they need to be used in many places. Fertilizer plants
For enterprises that require stable supply all year round, it is more appropriate to build their own supporting facilities.
The superphosphate production line consists of three workshops: 14x7 square meters for drying, 14x10 square meters for forming, and 24.5x10 square meters for packaging. It includes a 30 square meter drying pit, a 2.5 square meter vibrating screen, a semi-continuous forming room, and an elevator.
There are 10 sets of equipment such as high-level sulfuric acid tank and mixing pot, with a quota of 150 employees and an area of 0.264 hectares.
This project requires 5,600 tons of phosphate rock every year, so the Planning Institute specially arranged a 200-ton transport ship to and from the Xisha Islands to transport struvite. Moreover, the original electricity consumption of 10 kilowatt hours per ton was replaced by steam engines to provide power, and several more were needed every year.
thousands of tons of coal supply,
The 3,800 tons of sulfuric acid raw materials are provided by the supporting 4,000 tons of sulfuric acid workshop. The sulfuric acid workshop covers an area of 33x16 square meters and has a quota of 50 employees. It requires 4,892 tons of pyrite every year, and is also equipped with a 200-ton transport ship from Wan.
Ning's Shangen pyrite mine is transported back. 440,000 kilowatt-hours of electricity per year need to be converted into corresponding steam power - it is estimated that 4,000 tons of coal are consumed. In addition, 400,000 tons of industrial water are needed every year.
The visitors watched the huge steel machine running continuously. The smell of sulfur was pungent and unpleasant, and piles of gray-white stones and soil were continuously thrown into the giant mouth of the steel, eventually becoming "fertilizer powder" that can be applied to increase production. They can understand to some extent whether Tiandi can make compost or the like - after all, compost is also a kind of farmyard manure. But this kind of thing that can increase production by using only stone powder is beyond their understanding.
Everyone in the group was shocked, thinking that the leaders had great strength and iron in their hands to seize the opportunity of creation. Not only did they feel awe and fear in their hearts, but they also had greater vision for the bright future of Lingao. More Full of confidence in the future of yourself and your family.
But for Ji Situi, the current situation is not good at all. There are too many areas that require chemical products for industrial upgrading, from equipment manufacturing, military industry, agriculture, medicine... almost all of them put forward various suggestions for the chemical industry. However, so far, not many chemical industries can meet these requirements. Even if they can be produced, most of them have insufficient production capacity.
This aspect is first of all limited by materials. Chemical production equipment requires a lot of corrosion-resistant materials and special steel. At present, their metallurgical industry is basically unable to meet the requirements, and ceramics and glass have to be widely used as manufacturing materials for many chemical equipment. These two materials Although its corrosion resistance is good and its sources are wide, its mechanical properties and processability are limited. It can only be used to manufacture some small equipment and components as substitutes. This also makes most of the new chemical companies in Lingao almost Produced in a laboratory that has been expanded several times.
Moreover, the Ministry of Chemical Industry does not have enough manpower: chemical plants pollute a lot, work-related injuries are numerous, and hundreds of people are killed or injured every year due to various accidents. And it goes without saying that the appearance of the dead and injured is very scary - under the current medical level in Lingao, most of them The injured in chemical accidents do not survive, and those who manage to recover only suffer from moderate or higher disabilities.
Despite measures to strictly block news of the accident and provide generous benefits, many naturalized citizens who knew the inside story were still reluctant to work in chemical plants, so they could only assign indentured servants without personal freedom to work in chemical companies. If not for Operation Engine A large number of indentured slaves were brought in, and it was difficult to realize his plan to expand the scale of employment immediately.
Ji Situi suffered from huge demand, poor equipment, untrained workers, frequent accidents, and an intermittent supply of raw materials. He had gray hair after struggling.
After visiting the production line and letting the customers of Tiandihui go their separate ways, Wu Nanhai and Ji Tuisi took the "urban train" back to Bairen City.
Seeing that Ji Sixui's expression was relatively relaxed, Wu Nanhai took out a "Chuqing Limited Edition" and handed it over, taking the opportunity to say: "Old Ji, I heard that the production of ammonium bicarbonate is relatively simple, as long as there is anthracite coal. And it is more suitable for the acidic soil here than ammonium sulfate. Do you think the next step can be to put it on the line? We also have a huge gap in nitrogen fertilizer now..."
"Old Wu, do you think we haven't thought about this? Back then, many of TG's small chemical fertilizer projects were ammonium bicarbonate projects. Now we have no problem with the supply of anthracite. But the problem has come full circle and come back," Ji Tuisi He lit a cigar and started talking: "Our 800 tons of synthetic ammonia use Hou Debang's joint carbonization method, which is common in small nitrogen fertilizer plants. Otherwise, where do you think the ammonium bicarbonate provided to you now comes from?"
The current 800-ton synthetic ammonia production project of the chemical plant uses the combined carbon method invented by Hou Debang in 1958. The synthesis process uses anthracite as raw material to first prepare semi-water gas, which after removing hydrogen sulfide, enters the pressurized shift reaction system to obtain
A mixed gas of nitrogen, hydrogen and carbon dioxide. The mixed gas enters the carbonization tower, where the carbon dioxide reacts with ammonia water with a concentration of about 17% to generate ammonium bicarbonate crystals, which are separated by a centrifuge to obtain the ammonium bicarbonate product.
The raw material gas after removing carbon dioxide, after further removing residual carbon dioxide and a small amount of carbon monoxide, enters the ammonia synthesis system to produce ammonia water.
Ammonia water can either enter the carbonization tower to make ammonium bicarbonate, or it can be used as raw material to make other chemical products.
This combined production method can also produce a small amount of sulfuric acid, which is a production method with low energy consumption and high output.
Wu Nanhai was disappointed: "So it's still a question of the scale of synthetic ammonia production."
"That's right." Ji Tuisi said, "If you don't have synthetic ammonia, you have to find a way to stably import saltpeter from the mainland. This is unlikely. Even if the Ming Dynasty ignored it and the roads were smooth, the production capacity of this time and space would be
It is unlikely that our needs will be met; either a trans-Pacific shipping route for Chilean saltpeter will be established now..."
"That's even more impossible." Wu Nanhai shook his head, "We still have to build our own mining site."
"That's right, so the only way left is to light up the technology tree of self-produced ammonia equipment as soon as possible and expand production capacity." Ji Tuisi said meaningfully, "Equipment manufacturing is still the foundation of everything."
"You are right." Wu Nanhai said, "I think everyone understands this truth. It should be mentioned more at the meeting."
Ji Tuisi smiled: "Let's not talk about the equipment problem for now. Let's talk about the 4,000-ton sulfuric acid supporting project in this factory. It is planned to use pyrite, which will require 5,000 tons a year, but we can now mine the mountain roots in Wanning County.
In history, the maximum production of pyrite is more than 1,000 tons per year. It is not enough for the current sulfuric acid plant. Even if the Yamane pyrite mine reaches its historical maximum production capacity immediately next year, I still don’t know the new gap of 5,000 tons.
Where can I find it..."
Wu Nanhai broke into a cold sweat after hearing this. If the sulfuric acid supporting equipment is not enough, wouldn't his annual 10,000 tons of ordinary calcium phosphate be in ruins? He quickly asked:
"Are there no other pyrite mines in Hainan?"
"Yes, there is, but mining and transportation are inconvenient, and the conditions are not as favorable as those of Shangen: just dig them out on the beach and use a rail car to pull them to the beach for shipment." Ji Tuisi smoked a cigar, "The opinion of the Planning Institute is to expand Shangen's sulfur first.
The mining of iron ore and the import of natural sulfur from Taiwan..."
Like the Ryukyu Islands and the Japanese Islands, Taiwan has relatively active geological activities and a large amount of natural sulfur minerals. It was an important export commodity in the Qing Dynasty.
"It wouldn't be bad if we could transport a large amount of natural sulfur. Our agricultural demand for sulfur is also huge."
"It's mainly related to transportation capacity and manpower. Speaking of Taiwan, Hualien has a large amount of serpentine - if it can be mined and transported back on a large scale, it is much simpler to use the blast furnace method to make calcium magnesium phosphate fertilizer than superphosphate, and there is no need for supporting equipment.
Sulfuric acid project..."
“Taiwan is really a treasure land of Feng Shui.”
…
The two chatted all the way and soon arrived at their respective stations. It was already three o'clock in the afternoon when Wu Nanhai returned to the office of the Committee of Agriculture. He sat down and took out a black-covered secret memorandum from the locked drawer. , which he specially used to record some relatively sensitive and important matters, and wrote a paragraph on it. (To be continued, please search Piaotian Literature, the novel is better and updated faster!