Summary of the joint inspection work of spring safety production

I usually say nonsense when I check the inspection situation. "Because of the time of inspection, personal ability, etc., there may be limitations and one-sidedness in the investigation of safety hazards. We hope that the company can combine the problems and suggestions raised. At the same time as the implementation of the hidden danger rectification, the company will conduct a comprehensive investigation of the company to ensure that the hidden dangers of the accident occur in the bud, and avoid and reduce the accidental or property damage accidents as much as possible." On the one hand, it is the affirmation of the limitations of the hidden dangers, and on the other hand, the protection of self-risk awareness of some hidden dangers.

Let me talk about my understanding of this inspection work and the issues that need further attention from ten aspects:

First, dangerous process

Fifteen hazardous processes phosgene and phosgenation processes, electrolysis processes, chlorination processes, nitrification processes, ammonia synthesis processes, cracking processes, fluorination processes, hydrogenation processes, diazotization processes, oxidation processes, peroxidation Process, amination process, sulfonation process, polymerization process, alkylation process. In combination with the actual situation of related chemical enterprises in Shangyu Industrial Park, the following should be paid attention to: 1. Chlorination process 2, cracking process 3, sulfonation process 4, hydrogenation process 5, polymerization process 6, diazotization process 7, fluorination Process 8, nitrification process 9, oxidation process 10, peroxidation process 11, ammoniation process 12, high-risk storage tanks, etc. It can be summarized and summarized in combination with the production characteristics of the enterprise.

Second, hazardous materials

It mainly involves the storage and use of highly toxic chemicals, precursor chemicals, monitoring chemicals, and other flammable liquids, flammable gases, corrosive liquids or solids. It is necessary to understand its physical properties, major risks, emergency disposal measures and related management requirements. Mainly mention liquid chlorine and liquid ammonia.

Liquid chlorine storage and use process is safe . Liquid chlorine warehouse setting, storage and use of live video monitoring installation and maintenance, liquid chlorine cylinders with steam heating temperature control, liquid level control. Disposal of idle or discarded cylinders, setting of process system buffer tanks. The use, maintenance and inspection of chlorine gas traps must be carefully studied gb11984-2011 " Safety Regulations for Chlorine Gas", aq3014-2011 " Safety Technical Requirements for Liquid Chlorine Use".

Liquid ammonia is safe to store and use. Since the process requires the use of chilled brine, the refrigeration plant is often set up and an ammonia refrigeration process is employed. Due to the special hazard of liquid ammonia, its storage and use safety must be highly valued. It mainly involves the height of the cofferdam in the liquid ammonia storage tank area, the toxic gas leakage alarm device, the ammonia gas leakage emergency shut-off valve, the storage tank magnetic flap level gauge or the remote high-low level liquid level alarm installation, summer sunscreen rain Punching, cooling spray and other measures to prevent high temperature radiation.

In combination with the above two hazardous chemicals, do a good job in the installation and inspection of other hazardous chemicals use and storage site safety warning signs, safety know-how cards, safety procedures, wall-mounted, chemical protective clothing, gas masks and other emergency rescue equipment. At the same time, it is necessary to do a good job of sorting and storing hazardous chemicals, and it is forbidden to exist in the presence of mixed phenomena. And safety facilities and safety management requirements for warehouses and tanks.

In the filling process of hazardous chemicals tankers, it is necessary to learn and implement the archives requirements of the State Administration of Work Safety, promote the use of universal filling piping systems instead of filling hoses, and prohibit the use of hoses to fill liquid chlorine, liquid ammonia, and liquefied petroleum gas. Liquefied dangerous chemicals such as liquefied natural gas.

Third, static jumper, grounding and leakage protection

Accidents such as electrostatic fires and electric shocks in chemical companies often occur. In x years, many accidents caused by electric shock due to imperfect grounding of the outer casing occurred. The x accident again raised the management of the power line protection casing and the pump setting outside the tank area. Electrostatic bridging is required at the flange valves of storage tanks, reactors and pipelines where chemical companies store or transport inflammable and explosive materials. Especially in the production site where the wetness is involved, the grounding of the equipment, the grounding of the equipment, the mobile electric equipment or the electric shock absorber of the hand-held power tool socket, the power cord of the electrical equipment used in the flammable, explosive and corrosive place must be equipped with a protective cover. tube.

Fourth, the safety management of external construction personnel

Due to inspection and maintenance or new renovation and expansion projects, external construction units are required to participate in the cooperation. It is necessary to sign a safety management agreement with the construction unit, strengthen the safety training for construction personnel entering the factory, and implement the approval system for dangerous operations involving climbing, hot fire, confined space, temporary electricity use, and do a good job on site safety technical measures. Safety precautions.

V. Safety management of simple lifting device

Most chemical companies use simple hoists such as electric hoists or self-made electric freight elevators on the shop floor. They must maintain or replace the safety auxiliary files such as travel limit, decoupling insurance, door closing interlock, and pay attention to the on-site restrictions. Operating procedures and safety warning signs such as fall prevention and prohibition of manned. For the explosion-proof and power line protection of motors in inflammable and explosive places. It can be combined with the learning and publicity of db33 776-2011 " Safety Technical Specifications for Simple Lifts" to urge enterprises to use and manage simple lifting devices.

6. Use and management of industrial gas cylinders

The production of chemical enterprises often involves the use of oxygen, acetylene, hydrogen, nitrogen and other industrial gases in nitrogen filling protection, air purging, chromatographic testing, and equipment inspection and maintenance. It is necessary to do a proper storage and anti-dumping measures for gas cylinders, correct installation of safety accessory files such as pressure gauges, pressure reducing valves and tempering flame arresters, and sign safety management agreements with industrial gas supply units. At the same time, some units still have problems in handling the idle cylinders after the cylinders are changed to storage tanks.

Seven, the installation and use of automated control systems

The safe and reliable instrument and interlock control system are equipped with the necessary toxic and harmful, flammable and explosive gas leakage detection and alarm system and fire alarm system, which improves the safety and reliability of the device. However, some of the enterprise automation control systems were found to be installed during the inspection, or the installation location was improper, or it could not be maintained or replaced in time. The service life of the automatic control system such as the corrosion detection alarm should be considered. Electric or pneumatic interlock control facility air source and power supply backup. For the process control display, if the automatic control remote transmission system is installed, it is recommended to install the on-site display.

8. Identification of major hazard sources of hazardous chemicals

During the inspection, some enterprises' safety evaluation reports were prepared before December 1, 2019. They involve the use of old standards for identification of major hazard sources, or the omission of some chemicals during identification. It is necessary to do hazardous chemistry according to gb18218-2011. The identification and identification of major hazard sources of products shall be in accordance with the requirements for the grading standards of local major hazard sources and relevant management measures shall be implemented.

Nine, risk management and emergency management

Modern safety management mainly focuses on these two aspects. Enterprises must strengthen emergency management while doing safety assessment to enhance the identification of dangerous and harmful factors. The enterprise shall make preparations and revisions of the emergency plan according to the requirements of the 17th Order of the State Administration of Work Safety, “Administrative Measures for Emergency Plan for Production Safety Accidents”, aq9002-XX “Guidelines for the Preparation of Emergency Plan for Production Safety Accidents of Production and Operation Units”. The system is clear and the solution is practical and operative. At the same time, it is equipped with sufficient effective labor protection products and emergency rescue equipment.

X. Power supply and distribution safety management

Many enterprises have lack of management of power distribution rooms, internal dust and storage of debris, cable trench cover is wood, no emergency lighting. Insulation mat, using wooden door, no anti-rat baffle, etc. It is recommended to clean indoor sanitation in time, replace the cable ditch cover as cement cover or pattern steel plate, equipped with sufficient safety warning signs and work signs, and safe operation procedures are posted. The wall adopts the push-out fire door, the 50cm isolation plate is set at the door, the emergency lighting is set indoors, the insulation pad and the insulation tool are equipped, and the inspection and recording are performed regularly.

The details of the above related topics will be feedback in the blog. The last thing to note is the compilation and learning of the archives of all levels of government, especially the safety supervision department, including guidance opinions, notices, etc., especially the accident information or Accident investigation and analysis report.