A few days ago, the Tianjin Municipal Emergency Management Bureau issued a safety warning notice to hazardous chemical enterprises, mentioning that on April 19, a poisoning accident occurred in the coal storage and transportation workshop of Inner Mongolia Ulan Tai'an Energy and Chemical Co., Ltd. The accident killed 4 people and injured 1 person, and the preliminary analysis was hydrogen sulfide poisoning.
The Tianjin Emergency Management Bureau pointed out that the accident exposed the incomplete implementation of the main responsibility of enterprise safety production, the indifference of safety awareness and risk awareness of relevant personnel, and the lack of implementation of safety management system and safety operation procedures. It is necessary to pay close attention to the management of special operations, strictly implement the approval system for hot operations, confined space operations, temporary electricity operations, etc., and no one shall engage in relevant operations without approval.
The poisoning accident in the coal storage and transportation workshop of Inner Mongolia Ulan Tai'an Energy and Chemical Co., Ltd. is another limited space accident. Closed or semi-enclosed and poorly ventilated spaces such as pipelines, cellars, basements, and septic tanks are limited spaces with risks, which are easy to cause poisoning and suffocation, and blind rescue can also easily lead to the expansion of casualties.
Confined Space Accidents
Most of them have the following characteristics
The main types of accident injuries are poisoning and suffocation, and the toxic and harmful gases that cause accidents are mainly hydrogen sulfide and carbon monoxide.
Accidents occur seasonally, with the accident-prone period from March to October every year.
The operation approval system was not implemented, and the operators entered the limited space without ventilation and testing.
Enterprise safety education and training are not in place, and they are blind to the hazards that may arise from limited spaces.
The phenomenon of accidents caused by blind rescue is particularly serious.
Five typical misunderstandings of operators
"I" didn't smell or see any danger, so it's okay to enter.
"I" just probe in to see, not really to go in.
"I" went in and took a look, and soon came out.
"I" have checked it all, no problem, you don't need to test the instrument.
Once something happens, pinch your nose and hold your breath to escape.
Safety Guidelines for Working in Confined Spaces
What are the hazards of confined space?What are the precautions for on-site operation?How to rescue in case of an accident?Please keep this confined space safety guide!
Identify and judge limited space
Limited space refers to the space that is enclosed or partially enclosed, with restricted entrances and exits but accessible to personnel, not designed as a fixed workplace, poorly ventilated, and prone to the accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content.
The main risk of limited space
The limited space is prone to the accumulation of toxic and harmful, flammable and explosive substances, or the lack of oxygen content, falling, electric shock, collapse and other fatal hazards.
Confined space operating procedures
Comply with the operating procedures of confined space operations to avoid tragedies. Operation approval→ gas detection and ventilation → safe operation→ real-time detection and ventilation → shall not leave the post without permission → emergency evacuation in abnormal situations. Accidents are not difficult to prevent, the important thing is to have regulations!
Confined Space Rescue Guide
At the rescue site in a limited space, when there are no conditions for self-rescue, untrained personnel who do not wear personal protective equipment are never allowed to forcibly rescue.
Source: Publicity and Education Center, Ministry of Emergency Management
Editor/Producer: Wang Xiaolu
Reviewer: Yin Yueming
Review: Liu Chunxiang