On February 23, the Department of Emergency Management of Shandong Province issued an investigation report on the "1·10" major explosion accident at the Hushan Gold Mine in Qixia City, Shandong Wucailong Investment Co., Ltd. (hereinafter referred to as "Shandong Qixia Mining Disaster"). The Shandong Provincial Accident Investigation Team determined that the accident was a major production safety liability accident caused by illegal storage and use of civilian explosives and illegal hot work at the wellhead.

Picture of the rescue work site of the explosion accident at Qixia Gold Mine in Shandong

According to CCTV News Client, at about 13:13 on January 10, 2021, during the infrastructure construction of the Wushan Gold Mine in Qixia City, Shandong Wucalong Investment Co., Ltd., an explosion occurred in the return air shaft, causing 22 people to be trapped. After full rescue, 11 people were rescued, 10 people died, and 1 person was missing, causing a direct economic loss of 68,473,300 yuan.

The investigation determined that the main cause of the accident was the illegal mixing of detonator detonators, detonating cords and explosives underground, illegal fire operations at wellheads, confusion in civil explosives management, and construction project outsourcing management, and the enterprises involved lacked the main responsibility for safety production. ; Relevant departments are not in place to implement safety supervision responsibilities, and local party committees and governments are not in place to implement territorial management responsibilities.

The investigation also determined that both Shandong Wucailong Investment Co., Ltd. and Qixia City constitute late reporting and concealment. Based on the investigation of the cause of the accident and the determination of the responsibility for the accident, Shandong Province held accountable 45 related persons responsible in accordance with regulations, disciplines and laws.

For this mining disaster, we should be aware of the need to improve the safety supervision level of hazardous chemicals storage in addition to grief.

Use laser monitoring technology to improve the safety supervision level of hazardous chemicals storage

The production safety of hazardous chemicals storage is of great significance to the long-term stability of the country and the steady development of the national economy. At present, hazardous chemicals in the storage area of hazardous chemicals have many types, large volumes, instability and volatility. In addition, the storage area is a confined space, which is prone to exceed the concentration of dangerous gases, causing explosions and personnel poisoning, etc. The possibility of accidents is greater.

In order to thoroughly implement the spirit of General Secretary Jinping’s important instructions on safe production and strengthen the technical level and preventive measures of safe production supervision, the storage industry urgently needs to use advanced technologies such as laser, 5G and big data to establish a comprehensive, all-round and systematic The safety monitoring system realizes the precise, reliable and intelligent safety monitoring of Class A hazardous chemicals storage, effectively curbing the occurrence of major accidents.

As a leader in the field of laser monitoring technology research and production, Hanhai Opto-electronic laser products are industrialized products of the Chinese Academy of Sciences' national major scientific research achievements. The technology is "domestic and internationally advanced". It has comprehensive advantages in many aspects and can satisfy the storage of hazardous chemicals to the greatest extent. Monitoring requirements.

Laser absorption spectroscopy technology is currently the most advanced gas detection technology in the world. Hanhai Opto-electronic is the holding company of national laser absorption spectroscopy detection scientific research achievements, and it is a leader in technology and market applications in this field. Products and technologies have always been at the forefront of global laser spectroscopy technology R&D and application, and have the overall advantages of leading domestic and international advanced recognized by the former State Administration of Work Safety.

Compared with traditional hazardous gas monitoring methods, the main advantages of laser gas detection technology and products are: using laser as the working principle to achieve large-scale, regional, active, high-sensitivity monitoring, and anti-electromagnetic interference; to achieve specific monitoring points without power supply It works without oxygen for chemical reaction, and it can ensure intrinsic safety under normal monitoring under high altitude hypoxic environment. The existing technology has been substantially improved in terms of monitoring accuracy, response speed, operation and maintenance costs, ease of use, and ultra-long service life. Realize the advantages of maintenance-free monitoring equipment, no calibration, simple operation, etc., comprehensively reduce costs and improve economic performance.

The company’s relevant core technology has been jointly recommended by the Ministry of Emergency Management, the Ministry of Science and Technology, and the Ministry of Industry and Information Technology, and has passed the scientific and technological achievements appraisal of the State Administration of Work Safety, and won MA certification, fire protection product certification, and emergency management department safety production technology achievement awards. . Based on the actual needs of hazardous chemical storage gas monitoring, Hanhai Opto-electronic products have achieved laser detection of more than 20 toxic, harmful, flammable and explosive gases. It has served representative enterprises in the industry such as PetroChina, CNOOC, Beijing Gas, and China National Chemical Industry. It has been successfully applied in the gas monitoring project of Yangzhou Chemical Park and won unanimous praise from all parties.