In the middle of the night of May 14, Ding Dexin got off the plane with difficulty and went to Beijing to participate in an academic forum. At the meeting, he once again called for strengthening research on new technologies in uranium mining and metallurgy to ensure the development of China’s nuclear industry.
In the field of uranium mining and metallurgy in China, Ding Dexin is a well-known name. The nuclear industry is an important support for my country’s carbon peak and carbon neutrality. Natural uranium is the “nuclear industry food”, and uranium mining and metallurgy is the key core technology for the production of natural uranium. Professor Ding Dexin of Nanhua University has devoted his life to the scientific research and teaching of uranium mining and metallurgy, and has established the only complete uranium mining and metallurgical discipline system in China. He is known as the safety guardian of “nuclear industry food” and the pioneer of China’s uranium mining and metallurgy discipline. Cattle.
It is hard to imagine that such an outstanding scientific and technological educator has been struggling with physical illness for half his life. When I was young, I suffered from ankylosing spondylitis due to working in the countryside, and then suffered a stroke. It is enough to deal with these diseases to exhaust people’s energy, and Ding Dexin still has the results of education and scientific research.
General Secretary Xi Jinping pointed out during an inspection tour at Tsinghua University: “Teachers must become masters and serve as a model for students to learn, do things, and behave.” Ding Dexin used her own words and deeds. , Interprets the meaning of Mr. Da.
For learning: “The country needs the nuclear industry, and someone has to hold on to this point”
When it comes to the impression of Ding Dexin, many people will use it Perseverance to describe. For her husband and children, Ding Dexin’s obsession is to keep sleeping at night and rest without rest; for doctors, Ding Dexin’s obsession is to ask to return to work three days after illness, and lay down on the bed to revise student papers. Ding Dexin said: “I just want to persist in doing one thing.”
Looking back over the course of time, many times, a person’s achievement depends on the persistence of key nodes. adhere to. 
Later, Ding Dexin’s student Li Feng said: “Teacher Ding’s persistence has made a subject, a school, and an industry a success. “
At that time, domestic in-situ leaching of uranium was still in the pilot test stage. In order to master the technology of in-situ leaching of uranium as soon as possible, Ding Dexin took simple luggage to the University of New South Wales, Australia Study.
Two years later, Ding Dexin, who performed well, received a sincere retention from the dean of the Mining Engineering Department of the University of New South Wales. Ding Dexin declined the invitation because he was thinking about it. Domestic affairs.
After returning to China, Ding Dexin, as a subject leader, applied for a master’s degree in mining engineering (uranium mining and metallurgy). The following year, the school obtained a master’s degree authorization In 2005, the major of mining engineering (uranium mining and metallurgy) was authorized by doctoral degree. In 2007, the only national defense key discipline laboratory of uranium mining and metallurgy biotechnology was established. In 2009, the post-doctoral scientific research of mining engineering (uranium mining and metallurgy) The mobile station was successfully declared. In 2010, it was approved to establish a doctoral degree authorization point for the first-level discipline of mining engineering (uranium mining and metallurgy).
So far, after 25 years of hard work, Under the environment of repeated ups and downs in mining and metallurgy and variable economic benefits, Nanhua University has finally built the only complete discipline system for China’s nuclear industry to cultivate bachelor, master, doctor and postdoctoral degrees in uranium mining and metallurgy.
From scratch, there is too much content to be built in this process, such as teacher team construction, laboratory construction, talent training plan formulation, textbook compilation… student Li Guangyue recalled: “In the master’s, doctoral, and When applying for post-doctoral research mobile stations, Mr. Ding often stays away from home for 10 days, and all the application materials are considered word by word. Only then has a complete discipline system of uranium mining and metallurgy. “
Why are you obsessed with building a discipline system? Ding Dexin said that to ensure the safety of “nuclear industry food”, the key is to cultivate generation after generation of uranium that has the aspiration to serve the country with strong nuclear power. Mining and metallurgical professionals.
Since 1998, Ding Dexin has trained more than 120 graduate students, 32 of whom have roots in the nuclear industry and uranium mines. 1992 By 2020, Nanhua University has trained 4388 professionals for the nuclear industry, and 1174 graduates have worked in the nuclear industry and uranium mines. According to conservative statistics, one third of the middle and high-level managers of uranium mining and metallurgical enterprisesThe manager is a graduate of Nanhua University and a student of Ding Dexin.
Life is like walking. “Ding Dexin has not cared about the ravines along the way, nor has he been seduced by the beauty of the roadside. He has lived up to expectations and has expanded the road of uranium mining and smelting, and has cultivated many colleagues.” The party committee of the former Hengyang Institute of Technology. Secretary Wang Changhan said.
For things like mountain climbing: “My research direction is to do whatever the country needs”
Students say that they are often opened up by the teacher The vision is convincing, he always understands the most cutting-edge direction in the world. Ding Dexin said that to understand the world is to serve China. Ding Dexin’s scientific and technological research is all centered on major national needs.
my country has large reserves of uranium ore, but the grade is low, and most of them are small and medium-sized ore deposits. How to realize the efficient and green development of low-grade uranium resources and ensure the safety of “nuclear industry food” is a question that Ding Dexin often thinks about.
For example, granite-type and volcanic-type uranium deposits account for approximately 60% of my country’s uranium reserves. However, the uranium minerals in these ores are mostly wrapped by other minerals, and it is difficult to dissociate mechanically, resulting in low leaching rate and long leaching cycle. To realize the efficient development of these uranium resources, the dissociation of the uranium minerals must be solved.
In October 1996, Ding Dexin took this question to the University of Nottingham, UK, where he did a one-year visit and research, in-depth study of mineral microwave processing technology.
After returning to China, he led a scientific research team to conduct systematic and in-depth research on the response characteristics of granite-type and volcanic-type uranium deposits to continuous microwaves and pulsed microwaves.
On this basis, Ding Dexin led the team invented a new power supply mode and a new pulsed magnetron drive power supply, which overcomes the microwave compulsory force of granite and volcanic uranium mines. The key technology of dissociation, developed “granite-type uranium ore continuous microwave forced dissociation-heap leaching new technology” and “volcanic rock-type uranium ore pulse microwave forced dissociation-conventional stirring leaching new technology”, and verified the effectiveness of these technologies Sexuality and practicality.
The era of my country’s vigorous development of granite-type uranium resources and volcanic-type uranium resources is coming soon, and these research results will play an important role.
Speaking of, this is the professional name of some technology or equipment, and behind it is countless day and night tackling and sweat.
Ding Dexin’s experiment In the room, there are not only minerals, but also many animals and plants such as small zebrafish, boluohui, and tiger-tail orchid, which are used for bioremediation research of radioactively contaminated environment.
At present, several mines have planted these plants in large areas to repair the radioactively contaminated environment.
Over the past 35 years, Ding Dexin has taken the lead in conquering key technologies such as “Uranium Ore Heap Leaching High-efficiency Spray System”, “Large Flux Ion Exchange Device”, “Uranium Mining and Metallurgical Contaminated Site Bioremediation Technology” and other key technologies. National Defense Science and Technology Award, Hunan Technology Invention Award, Hunan Science and Technology Progress Award.
Ding Dexin said: “My research direction is to do whatever the country needs, with The team charges to protect the country’s needs. “
Ling Qiu, the former president of Nanhua University, said with emotion that Ding Dexin is our own scientist who grew up with the development of China’s nuclear industry, and has always had a deep feeling for the country’s national cause.
Things are like mountain climbing. “When Ding Dexin climbed the mountain of science and technology, he felt that the small mountains were not an individual, but the industrial power that benefited the country and the nation. “Ling Qiu said.
is like crossing a river: “When life is tribulation to him, he is a copper pea that is not flattened, fried, and resounding.”< br>
Whether leading students or being a human being, Ding Dexin’s most valued quality is the ability to fight setbacks: “‘There are always unsatisfactory things in life’, you must have a persevering character. In order to wades through the sufferings of life. “
Ding Dexin likes to read the book “Xi Jinping’s Seven Years of Educated Youth”. This book gave him a lot of strength, and he also passed on this strength to his students. In class, he often quoted stories in books to encourage students to face the suffering with perseverance.
Ding Dexin’s life was not smooth. In 1975, Ding Dexin went to the fishing ground to jump in for exercise, and accidentally injured his waist during a fishing job. In 1977, he resumed the college entrance examination, and he learned about it after he was admitted to the university. , The lumbar injury turned into ankylosing spondylitis.
At that time, the doctor said to Ding Dexin: “You are likely to be paralyzed in 10 years. “
The doctor made a judgment, but he could not accept his fate. Ding Dexin read medical books, made fitness equipment by herself, and exercised continuously every day.
In the past 10 years, the pain has always accompanied him, but he was not paralyzed. He went down the mine with the sick body and explored on the spot. People around him said that Ding Dexin had never retreated because of physical reasons.
In 2008, ankylosing spondylitis caused Ding Dexin’s body to stiffen and had to undergo hip replacement surgery. The operation lasted from 8 am to 4 pm, “At that time, the doctor took out two pieces of 10 cm long. Femur. His sweat wafted out like water, and the entire quilt was wet. “Ding Dexin’s wife recalled the scene more than ten years ago, and her eyes were red.
3 days later, Ding Dexin’s pain eased, and he asked his wife to put a small bar on the head of the bed. Stool, put the student’s research plan, test report, submitted thesis, graduation thesis, etc. on the stool, and lie on the bed to revise the guidance one by one.
2015, in the Ph.D. During the defense of the thesis, Ding Dexin suffered from a stroke. At 9 am, Ding Dexin already felt sweaty and weak. Until the afternoon, Ding Dexin was still giving guidance on the final revision of each doctoral dissertation. In the evening, Ding Dexin was arrested. Sent to the hospital and immediately transferred to the ICU for treatment after examination.
After falling ill, Ding Dexin still wants to return to school as soon as possible.
In order to recover as soon as possible, Ding Dexin walks around the playground every day, one circle is only 400 meters, but he has to walk for more than 40 minutes, after a lap, sweat is like rain. Six months later, Ding Dexin finally returned to the podium and experiment Student Li Ming said: “At that time, everyone was infected by Teacher Ding’s perseverance and tenacious spirit. He became the iron man teacher in the hearts of colleagues and students. “
Gao Shan, Secretary of the Party Committee of Nanhua University, always sighed when he saw Ding Dexin: “When life is tribulation to him, he is not beaten, fried, and loud. Grain copper peas. ”
Being a person is like crossing a river. Sometimes the water is turbulent, sometimes the moss is slippery, there is will in adversity, and morality is emphasized in good times. People say that Ding Dexin is more responsible and character in the countercurrent.
(Original title: Sticking to the achievement of one discipline and one industry throughout your life-Ding Dexin, professor of Nanhua University and pioneer of the discipline of uranium mining and metallurgy in China)