Gunpowder is one of the four great inventions of the Chinese nation, which has greatly promoted the development of human civilization for thousands of years. However, since 1867, the Swedish chemist alfred nobel developed explosives that shocked the world, the western explosive industry rose rapidly, and the ancient "hometown of gunpowder" was silent. However, due to the efforts of scientists in China, the development level of modern industrial explosives in China has been ahead of the world, and Academician Wang Xuguang is one of them. He has made outstanding contributions to the development of this cause and is known as "the king of explosives" and "the Nobel Prize in China".
In the early 1970s, Wang Xuguang began to study industrial explosives. At that time, the development of industrial explosives in China was still in its infancy. From 197 1 to 1978, Wang Xuguang and others have successively developed aluminum-magnesium powder ammonium nitrate oil explosive and sesbania 10 slurry explosive, which have achieved good results in practical application. 1978, when Wang Xuguang learned that in 12, the United States developed a new type of explosive with high detonation velocity, high power, high water resistance and no pollution, and proposed to sell it to China at the price of 15, Wang Xuguang, who was innovative and ambitious, decided to develop emulsion explosives in China.
BGRIMM emulsion explosive was successfully developed.
From 65438 to 0979, Wang Xuguang, as the project leader, together with other researchers who are in the youth of science, overcame various difficulties under the condition of relatively poor laboratory equipment. After exploring day and night, working hard, screening emulsified materials and exploring synthetic conditions, this study has achieved important results in theory and practice. First of all, they observed the dispersion state and oil film thickness of matrix particles of emulsion explosives for the first time at home and abroad by using thin film dilution technology, established the structural model and stability theory of polyhedral accumulation of internal particles, revealed the essence of fine and close liquid-liquid contact between oxidant and combustible agent, and put forward technical ways to improve stability. At the same time, they also studied and observed the detonation characteristics, influencing factors and rational use technology of this kind of explosives. Then, following the established theory, the internal structure of slurry explosive was changed by using surfactant technology to improve the performance of slurry explosive, and surfactant and emulsification technology were successfully introduced into the water-containing explosive system. After 1000 blasting tests, the first generation of water-in-oil emulsion explosive in China was successfully developed in 1979. 1980, the first emulsion explosive production line in China was born in their hands, and it was completed and put into operation in Hebei. Since then, Wang Xuguang and others have used many years to break through a series of key technologies, such as storage stability, sensitization technology and materials, resistance to low temperature and acid water, and the influence of density on explosion performance, to form a complete BGRIMM emulsion explosive technology and raw materials with China characteristics, and the cost is much lower than that of western countries. More than 30 factories have been built in China alone. The popularization and application of BGRIMM emulsion explosive technology has met the demand of industrial enterprises in China for industrial explosives and made great contributions to improving the scientific research and manufacturing level of industrial explosives in China.
In order to overcome the soft state of emulsion explosive, Wang Xuguang put forward the creative idea of preparing powdery explosive by emulsification for the first time in 1992, and successfully studied the ML powdery emulsion explosive in 1995. The research of powdery emulsion explosive has broken through a series of key technologies, such as continuous emulsion transportation of inorganic salt emulsion with high internal phase ratio, atomization of emulsion with high viscosity, drying at room temperature, vulcanization mixing and so on. It is an explosive with good fluidity, suitable for mechanical charging, non-caking, high cartridge density, strong water resistance and excellent detonation performance. ML powdery emulsion explosive was reformed in 2000, and more than ten factories and mines in China have applied this technology to build new production lines. Later, MZ-type and P-type permissible powdery emulsion explosives for coal mines were developed, which can increase the output value of the country by nearly 400 million yuan every year and create profits and taxes of more than 40 million yuan every year, with remarkable economic benefits.
Participate in blasting evaluation of Shenzhen fishing village
On May 2, 20051day, with several loud noises, rows of high-rise buildings with more than 8 floors collapsed along the Shenzhen River, and the 16 high-rise building in Futian Fishing Village on the Shenzhen River, which is known as the "first explosion in China", was officially directional blasted.
At that time, the super blasting in the process of rebuilding the fishing village was dubbed "the first blasting in China" by Chinese and foreign media. Of course, such industry activities also need Wang Xuguang's participation. As the chairman of China Engineering Blasting Association and an academician of China Academy of Engineering, Wang Xuguang is a member of the blasting expert group. Seven domestic blasting experts, including Wang Xuguang, signed the Review Opinions on Design of Large-scale Controlled Blasting Demolition Project for Reconstruction of Fishing and Rural Areas in Shenzhen.
On the day of blasting, Wang Xuguang not only watched the blasting at the scene, but also attended the press conference held by the blasting organizer. As a member of the expert review team, he answered the reporter's questions together with the leaders of Futian District and the blasting engineering company that carried out the blasting.
Academician Wang said at the press conference that such a difficult and large-scale blasting is the first time in China, and some advanced technologies can provide reference for future blasting. Although the blasting was somewhat regrettable, it was successful, and it did not affect the title of "the first explosion in China".
Blasting and Evaluation of Three Gorges Cofferdam
On June 6th, 2006, the Three Gorges Cofferdam, known as "the first explosion in the world", was successfully blasted. At 9: 00 a.m. on the 5th, the day before the third stage cofferdam blasting of the Three Gorges Project, the China-Japan Blasting Technical Committee and the first academic exchange meeting were held in Yichang, where the Three Gorges Project is located. More than 80 domestic and foreign blasting experts gathered at the Three Gorges Dam to discuss underwater blasting technology.
And watch the blasting of No.6 cofferdam.
Among these experts, one expert has to mention. He is Wang Xuguang, President of China Engineering Blasting Association and Chairman of China-Japan Blasting Technical Committee. Known as the king of explosives in China.
His identity is not just "an expert in observing blasting". His name is included in the signature of the expert review column of the third stage cofferdam demolition design scheme of the Three Gorges Project.
From February 27 to 28, 2006, the design scheme of the third stage cofferdam demolition in the upper reaches of the Three Gorges, which was designed by the Yangtze River Committee and repeatedly tested by the model, passed the expert review after many arguments. As a member of the expert group, Wang Xuguang made many suggestions on this amazing blasting project.
For this "first explosion in the world", the design institute of Yangtze River Committee repeatedly studied and designed its demolition blasting scheme because of the large amount of demolition work, tight construction period and most of the weir body under water, and finally recommended the blasting dumping scheme. The Three Gorges Corporation initially decided to adopt the three-chamber blasting scheme recommended by the Academy of Sciences of the Yangtze River Committee. In 2005, the Academy of Sciences of the Yangtze River Committee conducted 1: 100 cofferdam dumping test and 1: 10 cofferdam model dumping and blasting test at the test base, and consulted experts. On this basis, the Three Gorges Corporation organized all parties to discuss the related problems in blasting. As a famous domestic blasting expert, Academician Wang Xuguang and others formed an expert review team to review the design scheme put forward by the Yangtze River Committee.
Wang Xuguang and other experts believe that in the demolition of the upstream RCC cofferdam in the third phase of the Three Gorges Project, the scheme of "combining the dumping blasting of the 380m pre-embedded cavern (hole) in the middle of the cofferdam with the deep-hole blasting at both ends" is technically feasible, and the cofferdam can be demolished without affecting the safety of the main building. It is suggested that the minimum resistance line of the above-mentioned chambers should be calibrated according to the initiation sequence, and their charge should be adjusted appropriately. In order to ensure the blasting effect, high-power explosives with good compression resistance and water resistance should be selected. Carry out waterproof test on the explosives used, and do a good job of sealing and waterproofing during construction to ensure the charging quality.
Wang Xuguang and other experts also suggested that the water level in the weir should be higher than the water level outside the weir, and at the same time, the water filling time in the weir should be shortened as much as possible, so that the blasted weir can fall to the side far away from the dam. Yesterday's blasting practice also proved the wisdom of this suggestion.
Nobel bought his patent.
In the field of industrial explosives, Wang Xuguang and others took the lead in successfully developing nine series of emulsion explosives such as EL, and gradually formed a complete emulsion explosive technology named after "BGRIMM". It has formed a complete BGRIMM emulsion explosive technology and raw materials with China characteristics, and its cost is much lower than that of western countries. More than 30 factories have been built in China alone. Explosive technology has been transferred and built many times at home and abroad, which has enabled China's industrial explosive technology to enter the world's advanced ranks and successfully go to the world.
1985, invented the second generation of explosives, and the Nobel Company, which has owned emulsion explosives 100 years, bought their technology patents. The 35th Eureka Invention Expo awarded them a gold medal. It marks that China's industrial explosive technology has gone to the world since then.
In order to overcome the soft state of emulsion explosives, Wang Xuguang first put forward the creative idea of preparing powdery explosives by emulsification in 1992, and it was successfully studied in 1995. ML powdery emulsion explosive was reformed in 2000, and this technology has been applied in more than ten factories and mines in China. Later, two kinds of powdery emulsion explosives, MZ and P, were developed, which can increase the annual output value of the country by nearly 400 million yuan and create profits and taxes of more than 40 million yuan, with remarkable economic benefits.
Committed to making China's industrial explosive technology go global.
From 65438 to 0985, Nietro Nobel Company of Sweden, which is famous for its modern explosive technology, purchased BGRIMM emulsion explosive technology, which marked that China's industrial explosive technology went to the world. Since then, Wang Xuguang has successively presided over the construction of a multi-variety emulsion explosive factory with an annual output of 1 10,000 tons in Mongolia, and a multi-variety emulsion explosive factory with an annual output of 6,000 tons in Zambia, and successfully established an overseas investment enterprise BGRIMM Explosive (Zambia) Co., Ltd. ..
1992, Beijing Research Institute of Mining and Metallurgy signed a technology transfer contract with Erdente Mining Company, a Mongolian-Russian joint venture, to build a microcomputer-controlled production line with an annual output of 1 10,000 tons of multi-variety emulsion explosives, and Wang Xuguang was responsible for this turnkey project. This explosive factory is the first in Mongolia. Erdent Mining Company is a joint venture between Mongolia and Russia, and it is also the pillar of Mongolia's national economy. The open pit mine owned by the company is a super-large copper-molybdenum mine, which is one of the top ten mines in the world and the second in Asia. The completion of the microcomputer-controlled production line with an annual output of 654.38+100000 tons of multi-variety emulsion explosives ended the history of the company's import of explosives and had a great influence in the world. At the same time, it also promoted the export of raw materials and supporting equipment for explosive production in China to Mongolia, Russia, Ukraine and other countries.
In 2002, in view of the serious shortage of copper resources in China and the large demand, in order to promote the healthy and sustainable development of the national economy, China and Zambia signed an intergovernmental agreement on the joint development of Zambian Chambishi copper mine in 1998. In order to meet the needs of mining and blasting operation in Chambishi Copper Mine and reduce the production cost, NFCA (China Color Africa Mining Co., Ltd.) decided to establish BGRIMM (Zambia) Explosive Co., Ltd. on the basis of Chambishi Copper Mine in Zambia, and build a multi-variety emulsion explosive factory with a production capacity of 6,000 t/a. Under the auspices of Wang Xuguang, it successfully established BGRIMM Explosive (Zambia) Co., Ltd., an overseas investment enterprise. It is the first joint venture of production, supply and marketing in China national explosive industry. Beijing Research Institute of Mining and Metallurgy holds 60% of the shares, and Wang Xuguang is the chairman of the company. After the establishment of the company, Wang Xuguang personally organized, guided and led the scientific and technical personnel to work hard. The explosive factory was successfully put into operation in May 2003, with remarkable economic and social benefits. The establishment of the company has played a good demonstration role for the development and progress of emulsion explosive technology in China and the technical equipment of civil explosives going abroad to participate in international competition, and accumulated rich overseas investment and management experience.
Academician Wang Xuguang also served as the leader of China Academy of Engineering and China Blasting Association, and his work was extremely heavy. He has always worked tirelessly and hard in the field of industrial explosives and engineering blasting with the spirit of pioneering, innovation and continuous progress. He has published 5 monographs, and the English version of emulsion explosives has been sold to more than 90 countries in the world. He has published more than 80 academic papers/KLOC-0 in academic journals and conferences at home and abroad.