Metallurgy / Chemicals / Rubber & Plastics

Supervised and urged to learn lessons from accidents and promote the tightening of safety responsibilities. The Emergency Management Department announced a batch of typical cases of chemical and hazardous chemical production safety accidents.

In the first half of this year, there were 62 chemical accidents and 81 deaths across the country, a decrease of 22.5% and 12% from the same period last year (80 and 92), but there were 6 major accidents, an increase from the same period last year and 2019. 3 cases. These accidents have exposed some outstanding issues such as inadequate safety development concepts in some places and enterprises, weak awareness of the rule of law, weak safety foundation, low intrinsic safety level, and lack of safety management. The safety production situation remains severe and complex, and the prevention of major safety risks for hazardous chemicals The task of resolution is still arduous and arduous.

Chemical industry occupies an important position in the national economy and is a pillar industry and basic industry. The chemical production process is complex, and the hazardous chemicals involved are flammable, explosive, toxic and harmful. Once an accident occurs, it has a strong destructive force and a great social impact. Hazardous chemical safety is the top priority of safe production. Preventing and dissolving major safety risks of hazardous chemicals and resolutely curbing major safety accidents are related to the long-term stability of society and the safety of people’s lives and property. It has a prominent position and is of great significance.

The Emergency Management Department emphasized that extreme weather such as high temperature, high humidity, thunder and lightning, heavy rain, and strong wind frequently occurs in summer, which adversely affects production safety. First, it is easy to cause over-temperature and over-pressure in the production equipment and storage equipment of chemical and hazardous chemicals enterprises, which affects the smooth operation of equipment and process control. Lightning strikes can easily cause short circuits, fire or even explosions in oil and gas storage tanks, and heavy rainfall can easily cause spontaneous combustion when wet. Fire explosion. Second, some chemical and hazardous chemical companies centrally arrange equipment inspection and maintenance in the summer. During the inspection and maintenance process, there are many special operations such as fires and access to restricted spaces. These are weak links in enterprise safety management. Third, the hot weather in summer has a dual impact on the physiology and psychology of employees, which can easily cause accidents due to physical fatigue and lack of concentration.

All regions, departments, and enterprises must layer their responsibilities and do a solid job of safety precautions in the field of hazardous chemicals. One is to pay close attention to weather forecasts and disaster warning information, and focus on inspections of lightning protection and anti-static facilities, drainage systems, temperature and pressure testing of storage tank areas, and spray cooling systems to eliminate potential safety hazards in a timely manner. The second is that all relevant enterprises should check the production and storage of heat-decomposable substances one by one to ensure that the production process, storage and transportation conditions meet the requirements of relevant regulations and standards. The storage site must strictly implement safety control measures such as cooling and ventilation, and select appropriate storage Dangerous goods transportation vehicles under suitable conditions shall be strictly prevented from causing safety accidents under high temperature conditions. The third is to implement strict responsibilities, pay close attention to the characteristics of centralized inspection and maintenance of enterprises in summer, conscientiously do a good job in the identification and control of safety risks in the whole process, strengthen warning education and reminders, strengthen supervision and inspection, and effectively do a good job in safety risk prevention. The Emergency Management Department reminded that enterprise employees and the general public must increase their awareness of safety precautions, report violations of laws and regulations in production safety, and jointly create an atmosphere of supervision and governance.

In order to encourage all regions, departments, enterprises and the public to deeply learn the lessons of the accidents, firmly establish the concept of safety development, enhance the awareness of social safety, tighten and compact various safety responsibilities, and effectively prevent and resolutely curb major chemical hazardous chemicals. Safety accidents, to maintain the safety of people's lives and property, the Emergency Management Department recently announced a batch of typical cases of chemical and hazardous chemical production safety accidents that have occurred since 2021.

1. "1·14" poisoning accident by Henan Shunda New Energy Technology Co., Ltd.

At about 16:20 on January 14, 2021, Henan Shunda New Energy Technology Co., Ltd., located in Zhumadian High-tech Industrial Development Zone, occurred when the protective agent was removed from the 1# hydrolysis protective agent tank, causing 4 People died, 3 people were injured, and the direct economic loss was about 10.1 million yuan. The direct cause of the accident was that the operators violated regulations, causing them to suffocate and faint due to lack of oxygen. The on-site personnel had insufficient rescue capabilities and organization chaos, which led to the expansion of the accident.

Main lesson

Henan Shunda New Energy Technology Co., Ltd. has insufficient identification of safety risks, and has not clarified the suffocation risk caused by high-concentration nitrogen; the safety technical review is not strict, and the restricted space is not isolated from the hazardous chemical pipeline; the on-site management is not in place and restricted Space operators have no fastening measures after wearing positive pressure masks; insufficient safety investment, and no positive pressure respirators that are small in size and suitable for in and out of tank operations are not provided to the purification workshop; emergency rescue drills are not well-targeted and no special restricted space is carried out Anti-poisoning program exercise. In addition, its shareholder Haohua Junhua Group Co., Ltd. has not implemented the safety production responsibility system, and has reviewed the high-risk operation safety technical measures of its subsidiaries and inspected the breach of responsibility.

2. "February 26" explosion accident of Hubei Xianlong Chemical Co., Ltd.

At around 16:19 on February 26, 2021, during the resumption of work and production of Hubei Xianlong Chemical Co., Ltd., an explosion occurred in the illegal production of methyl sulfide, causing 4 deaths and 4 injuries. The main reason for the preliminary analysis of the accident was that the accident unit carried out methyl sulfide distillation and purification. When replacing the stirring motor reducer, the materials in the distillation kettle were not cooled, which caused the methyl sulfide in the kettle to heat up and cause violent decomposition and explosion.

Main lesson

Xianlong Chemical Co., Ltd. has a weak legal consciousness, and the main person in charge does not understand chemical industry. Under the name of legal production (licensed as ethyl chloride), it illegally organizes the production of A Base sulfide; front-line employees have a low level of education, lack of safety awareness and risk identification and control capabilities.

3. "February 27" poisoning accident of Jilin Chemical Fiber Co., Ltd.

At about 23:10 on February 27, 2021, a major poisoning accident occurred in Jilin Chemical Fiber Co., Ltd., resulting in 5 deaths and 8 injuries, and a direct economic loss of approximately 8.29 million yuan. The direct cause of the accident was that some of the exhaust fans in the No. 8 filament workshop were out of power and stopped running. The hydrogen sulfide escaping from the acid liquid in the acid recovery tank on the third floor of the workshop could not be discharged through the exhaust duct, causing the hydrogen sulfide to emerge from the top of the high tank. Escape and spread into the stairwell. Hydrogen sulfide accumulates in large quantities in the stairwell, reaching a lethal concentration. The process team leader of the new original solution workshop inhaled hydrogen sulfide poisoning on the way to the third floor job post via the stairwell. Many people were poisoned during the rescue process, which led to the expansion of the consequences of the accident.

Main lesson

Jilin Chemical Fiber Co., Ltd. lacks important safety equipment, has no fixed toxic gas alarm device, accident ventilation system, full-line DCS distributed automatic control system and dual-circuit power supply; lack of risk identification and control, and no identification of the eight spinning acid station three There is a risk of hydrogen sulfide poisoning in the building; emergency response to the accident is inadequate, no on-site disposal plan is formulated, and no emergency equipment and other control measures are provided; the safety awareness of relevant personnel is weak, and safety education and training are mere formalities.

4. "4.21" poisoning accident of Heilongjiang Kailunda Technology Co., Ltd.

At 13:43 on April 21, 2021, a poisoning suffocation accident occurred in Heilongjiang Kailunda Technology Co., Ltd. in Anda City, Suihua, causing 4 deaths and 9 poisoning injuries. The direct economic loss was about 8.73 million yuan. The accident occurred during the shutdown of the gas production kettle in the gas production section of the third workshop. The main reason for the preliminary analysis of the accident was that during the 4-month shutdown period, the gaseous materials in the gas production kettle were not returned, isolated and replaced, and a high concentration of carbon oxysulfide and hydrogen sulfide mixed gas gathered at the bottom of the kettle. Maintenance operators Without taking any protective measures, it enters the bottom of the gas making tank to work, and inhales toxic gas, causing poisoning and suffocation. During the rescue process, the rescuers leaned, shouted, and dragged into the kettle many times without protective measures, causing 9 people at the scene to be poisoned and injured to varying degrees.

Main lesson

Kailunda Technology Co., Ltd. lacks legal awareness, weak safety awareness, fails to implement the main responsibility for safety production, and organizes operations in restricted spaces in violation of regulations; risk identification and hidden danger investigation and management are not in place, and no risk of poisoning and suffocation has been identified in the maintenance of the gas tank; The management system is imperfect, the content of the parking operation is lacking, and the operation regulations for the return and replacement of the materials in the kettle are not clear; the job training of the operators is not in place, and the special operation safety training is not carried out; the emergency response capacity is insufficient, and the emergency rescue materials are not enough. Personal protective equipment. In addition, the construction project was not obtained in accordance with the law, construction was started without authorization, and the problem of prior construction without approval was prominent.

5. "May 31" fire accident of Hebei Peak Rui Petrochemical Co., Ltd.

At 14:28 on May 31, 2021, Peak Rui Petrochemical Co., Ltd., located in Dongxing Industrial Zone, Nandagang Industrial Park, Bohai New District, Cangzhou City, suffered a fire accident. The direct economic loss was about 38.72 million yuan and no casualties were caused. According to preliminary analysis, Peak Rui Petrochemical Co., Ltd. illegally stored the oil and gas recovery pipeline without installing a flame arrestor and shut-off valve. The illegal fire operation caused the flammable gas in the pipe and the top of the tank to flash and ignite the tank. Dilute the asphalt.

Main lesson

Peak Rui Petrochemical Co., Ltd. has a weak sense of law. When the storage tank is completed and has not been checked and accepted, it has been put into use without authorization and illegally stored diluted asphalt; it has not identified dangerous factors before hot work, and has not formulated and implemented safety measures for hot work. Command undocumented personnel to conduct fire operations in violation of regulations.