Comrade Xu Jingliang is a Communist Party member who cares about the safety of mines and miners, and a scientific and technological warrior who is deeply committed to the national coal mine safety cause. Comrade Xu Jingliang's scientific research was carried out based on on-site needs, and finally he selflessly used the results for on-site fire prevention and extinguishing.
The first domestic coal low-temperature natural ignition experimental platform was established and conquered the coal A worldwide problem in the determination of spontaneous ignition period.
Comrade Xu Jingliang was the first to create a domestic coal low-temperature spontaneous ignition experimental platform in the late 1980s. The experimental platform used similar environmental simulations and relied on coal's own oxidation and heat to cause the coal body to heat up and eventually lead to spontaneous combustion. This method solved the world-wide problem of determining the natural ignition period of coal seams for the first time. Using this experimental platform and computer simulation, combined with field testing, a method for measuring the natural ignition period of coal seams in mines was created, and a method for measuring the low-temperature spontaneous combustion characteristic parameters of coal and the limit parameters that can cause coal spontaneous combustion under experimental conditions was proposed, as well as coal particle size and void ratio. , oxygen diffusion coefficient and other influencing functions, it has laid an experimental foundation for the establishment of a theoretical system for mine fires and mine fire prediction technology. This experimental platform has carried out natural ignition period testing and on-site prediction for more than 70 domestic coal seams. All results were adopted. Under the guidance of Professor Xu Jingliang, the key technologies of this experiment have been applied in major domestic coal research units, colleges and universities, and large coal mining enterprises, and multiple experimental benches have been established.
Established a theoretical system of internal fires in mines
Created a theory of coal spontaneous combustion prediction and coal spontaneous combustion danger zone determination, and established a theoretical system of internal mine fires.
Professor Xu Jingliang proposed for the first time the coal-oxygen composite multi-stage reaction model and the thermal effect of each stage reaction, established the correlation between the microscopic reaction of coal spontaneous combustion and the macroscopic heat release intensity, and solved the oxidation problem of coal spontaneous combustion at low temperature. and quantitative calculation methods of exothermic properties, and established a mechanical and mathematical model of spontaneous coal ignition. Created a theory for determining coal spontaneous combustion dangerous areas, proposed a method for calculating the limit parameters of on-site coal seam spontaneous combustion, solved the problems of possible fire areas, fire conditions and fire prediction during on-site coal seam mining, and solved the "three zones" of on-site coal spontaneous combustion. Theoretical division basis and calculation method, as well as the criteria for determining the scope of fire source points after a fire breaks out. His works "Theory of Determination of Dangerous Areas of Spontaneous Combustion of Coal Seams", "Theory and Technology of Prediction of Spontaneous Coal Fire" and related works such as the mechanism of spontaneous combustion of coal, prediction of coal seam fires and determination of dangerous areas, etc., integrate the theory and technology of coal seam spontaneous combustion, forming a theoretical system of internal fire in mines. . He has edited the large-scale reference book "Coal Mine Safety Production Equipment Guide" organized by the State Coal Mine Safety Supervision Bureau, compiled 9 books including "Early Prediction and Forecasting Technology of Coal Spontaneous Combustion", "Coal Spontaneous Combustion Theory and Prevention Technology", and presided over the mine fire prevention and extinguishing In terms of theory and technology, major scientific research projects such as the National Fund for Outstanding Youth, the National Natural Science Foundation, the National “Ninth Five-Year Plan” Science and Technology Research and the Key Projects of the Ministry of Coal have laid a theoretical foundation for the prevention and control of mine fires in my country.
Created the "colloid" fire prevention and extinguishing theory for coal seam fires
Created the "colloid" fire prevention and extinguishing theory for coal seam fires, developed a series of colloid materials, equipment and processes, and promoted spontaneous combustion of coal seams in the world Development of fire prevention and control technology.
Based on the research on the mechanism of spontaneous combustion in coal seams, Professor Xu Jingliang first proposed the "colloid" fire prevention and extinguishing theory suitable for the prevention and control of coal seam fires. He wrote the monograph "Coal Seam Spontaneous Combustion Colloidal Fire Prevention and Extinguishing Theory and Technology" and developed inorganic colloids. , polymer colloids, composite colloids and other colloid fire-proof and fire-extinguishing materials, developed underground mobile and large-flow glue injection processes for surface pipe networks, developed corresponding supporting equipment systems, and obtained 4 patents. For the first time, it has overcome the technical problems of fire prevention and extinguishing in large fire areas in mines, especially high-gas mines and high-yield and high-efficiency mines. This achievement has become the main fire prevention and extinguishing technology in mines. It has been promoted and applied in 18 provinces (municipalities) and autonomous regions in my country. It has been included in the "Coal Mine Safety Regulations" and has been industrialized.
Created a precedent for fire prevention and extinguishing in mine fire areas
Have been engaged in scientific research on mine fire prevention, fire extinguishing and disaster relief for a long time, and set a precedent for fire prevention and extinguishing in mine fire areas. In the early 1990s, coal seam fires became one of the most important constraints on the development of high-yield and efficient mining technology in coal mines. In view of the characteristics of coal seam fires in my country, Professor Xu Jingliang led the research team to rush to the scene of mine fires, go deep into the front line of underground disaster areas, find out the key issues of mine fires, and develop the technology to determine spontaneous combustion dangerous areas in goafs in fully mechanized caving faces and the spontaneous combustion dangerous areas in roadways. Determination technology, coal natural ignition period prediction technology, colloid fire prevention and extinguishing technology, etc.
In the process of on-site technology promotion, key technologies for fire extinguishing and evacuation equipment for large fire areas such as coal mining faces, cut holes, stop lines, roadways, and adjacent goaf areas were developed based on different fire types in coal mines. It sets a precedent for preventing and extinguishing fires in large-area high-temperature fire areas in mines, especially high-gas mines.
Make the safety technology industry incubation base bigger and stronger
Increase the efforts to transform scientific and technological achievements with independent intellectual property rights into real productivity, make the safety technology industry incubation base bigger and stronger, and provide It provides new support for overcoming theoretical and technical problems in safety engineering.
In 2000, with the support of Xi'an Municipal Science and Technology Commission and Xi'an University of Science and Technology, "Xike Sunlan Science and Technology Trade Co., Ltd." was established, mainly engaged in the production of mine fire prevention and extinguishing series colloidal materials and complete sets of equipment and related scientific research development work, achieving an output value of more than 15 million yuan in 2003. The company's assets have reached 10 million yuan, and it has initially realized three major changes in coal mine safety prevention and disaster relief from small equipment to large system equipment, from manual control to intelligent control, and from local prevention to overall mine prevention. Every year, the company invests 7-10% of its turnover into scientific research. In early 2004, he persuaded the board of directors of Senlan Company to invest more than 1 million yuan, plus more than 3 million yuan in vertical and horizontal funds, and invested more than 4 million yuan in research. In safety high-tech research work. He has led the research team to achieve new breakthroughs in research on mine disaster relief visual command systems, mine disaster relief long-distance rapid explosion-proof wall construction technology, and mine fire-proof extinguishing agent materials. In 1992, his research topic "Research on the Low-temperature Spontaneous Combustion Process of Coal" won the third prize of the Science and Technology Progress Award of the Ministry of Energy; in 1994, his on-site project "Comprehensive Fire Prevention and Extinguishing Technology for High-Dip and Extra-Thick Coal Seams" won the third prize of the Ministry of Energy; in 1996, he was awarded He is a "top-notch professional and technical talent" of the Ministry of Coal and a cross-century "555" talent of Shaanxi Province; in 1997, the subject of his on-site application of his results "Application of High Temperature Resistant Hydrocolloid Direct Fire Extinguishing Technology in Gansu" won the third prize of the Provincial Science and Technology Progress Award; In the same year, he was approved to enjoy the special government allowance issued by the State Council; in 1998, the ministerial project "High Temperature Resistant Hydrocolloid Fire Extinguishing Technology" he led the research won the second prize of the Science and Technology Progress Award of the Ministry of Coal. In 1999, it was included in the Ministry's 100 Major Scientific and Technological Achievements Promotion plan; in 1999, the project "Gel Fire Prevention and Extinguishing Technology for Comprehensive Caving Faces" he presided over won the first prize of Xi'an Science and Technology Progress Award, and in 2000, he won the first prize of Shaanxi Province Science and Technology Progress Award. In the same year, the achievement was included in the major scientific and technological achievements of Xi'an City Transformation Engineering Plan. In 2002, the "Research on the Determination of Spontaneous Combustion Hazard Areas in Comprehensive Caving Faces and Research on Colloidal Fire Prevention and Extinguishing Technology" he presided over won the second prize of the National Science and Technology Progress Award; in 2003, the "Research on Colloidal Fire Prevention and Extinguishing Technology on Fully Comprehensive Caving Faces in High Gas and Inflammable Coal Seams" he presided over won the Shanxi Provincial Science and Technology Progress Award.