Jiaohua enterprise safety knowledge (Jiaohua safety technology)

1. Coking safety technology

1) Production characteristics

Coking plants generally consist of coal preparation, coking, recycling, refined benzene, tar, and other chemical refining , testing and repair workshops. The testing and repair workshops are auxiliary production workshops.

The task of the coal preparation workshop is to timely supply blending coal that meets the quality requirements for the coking workshop. The coking workshop is the main workshop of the coking plant. The production process of the coking workshop is: after the coal loading truck takes the coal from the coal storage tower, it is transported to the upper part of the emptied carbonization chamber and the coal is loaded into the carbonization chamber. The coal is converted into coke through high-temperature carbonization, and the raw coal gas is released and transported through the pipeline. Recycling workshop; use a coke pusher to push the coke out of the carbonization chamber, pass through the coke blocking car and then drop into the coke quenching car to be sent to the coke quenching tower for coke quenching; then, it is unloaded from the coke quenching car into the cooling coke table to evaporate the excess water and further cooled down, and then sent to the screen coke oven via a conveyor belt to be divided into various levels of coke. The recovery workshop is responsible for sucking, cooling and absorbing and recovering various primary products in the waste gas generated by the coke oven.

2) Coking safety production technology and accident prevention measures

⑴ Fire and explosion prevention. All fire and explosion prevention measures are to prevent the production of flammable (explosive) mixtures or to prevent the generation and isolation of activation energy of sufficient strength to avoid igniting flammable mixtures to cause combustion and explosion. To this end, it is necessary to understand how flammable (explosive) mixtures and activation energy are generated, as well as measures to prevent their generation and proximity to each other.

The formation of some flammable (explosive) mixtures is unavoidable. For example, flammable (explosive) mixtures exist in the upper space of flammable liquid storage tanks. Therefore, before filling materials, the above phenomenon can be avoided by filling the storage tank with inert gas (such as nitrogen) and exhausting the steam. In addition, the use of floating roof storage tanks can also avoid the generation of flammable (explosive) mixtures. The causes and preventive measures for other abnormal formation of flammable (explosive) mixtures are as follows:

⑵Leakage. Leaks are a common cause of flammable (explosive) mixtures. Leakage of flammable gases, flammable liquids and liquids with temperatures exceeding the flash point will produce flammable (explosive) mixtures in the leaked area or on the leaked liquid surface. There are two main reasons for leaks:

First, there are loopholes or cracks in the equipment, containers and pipelines themselves. Some are caused by poor manufacturing quality of the equipment, and some are caused by long-term disrepair and corrosion. Therefore, all equipment, storage tanks and pipelines that process, handle, produce or store flammable gases, flammable liquids or flammable liquids with temperatures exceeding the flash point must be inspected and accepted before being put into use. Its tightness and corrosion should be checked regularly during use. Since many materials in the coking plant contain corrosive media, special attention should be paid to the anti-corrosion treatment of the equipment, or it should be made of anti-corrosion materials.

The second is improper operation. Relatively speaking, there are more leakage accidents caused by such reasons than defects in the equipment itself. There are many accidents of oil and gas leakage due to negligence or operating errors. To prevent such accidents, in addition to strictly following standardized operations, overflow prevention measures must also be taken. The "Coking Safety Regulations" stipulate that a fire dike should be set up in the flammable and combustible liquid storage tank area. The volume in the fire dike shall not be less than half of the total storage capacity of the above-ground part of the storage tank, and shall not be less than the storage capacity of the above-ground part of the largest storage tank. Gates should be installed where the sewers in the fire dike pass through the fire dike. This gate is only opened when the water is released, and should be closed after the water is released.

⑶Relax. Many equipment in the coking plant are equipped with discharge pipes, equipment or storage tanks that process or store flammable and combustible materials. Some of the gases (vapor) released by the discharge pipes themselves are flammable (explosive) mixtures, or they are released and mixed with the air. Mix to form a flammable (explosive) mixture. The "Coking Safety Regulations" stipulate that each discharging pipe should be centralized and purified according to the types of gases and vapors dissipated before discharging. The outlet of the discharge pipe that emits toxic and flammable gases should be at least 4m higher than the equipment and adjacent buildings. The combustible gas outlet should be equipped with a flame arrester.

⑷Dust-proof and virus-proof. Coal dust is mainly generated in the process of coal loading, unloading, transportation, and crushing. The main dust-generating points are coal yards, dumpers, coal pits, conveyor belts, transfer stations, crushers, and pulverizers. Generally, coal yards use measures such as spraying covering agents or water spraying during shipment to reduce the concentration of dust. Conveyor belts and transfer stations mainly rely on the installation of conveyor belt profiles, partial or overall airtight dust covers, etc. to isolate and capture coal dust.

Dust-generating points such as crushing and pulverizing equipment should strengthen airtight suction, and set up bag dust removal, wet dust removal, ventilation dust collection and other devices to reduce coal dust concentration.

In the coking plant, carbon monoxide exists in the gas, especially the carbon monoxide content in the blast furnace gas used for heating the coke oven is about 30%. There are many gas equipments in the basement and flue passages of coke ovens, and the valves open and close frequently, making it easy for gas leakage. Therefore, gas equipment must be inspected regularly and maintained in time. The lean gas valve in the flue passage should be ensured to be in a negative pressure state.

In order to prevent hydrogen sulfide and hydrogen cyanide poisoning, the coking plant should set up desulfurization and decyanation process facilities. In the past, only city gas was desulfurized in China, and metallurgical enterprises generally did not desulfurize. As for decyanization, yellow blood salts are generally produced from part of the final cooling water or ammonia gas. With the increasing awareness of the seriousness of pollution, in recent years, various coking plants have begun to pay attention to the desulfurization and decyanation of coal gas. In order to prevent hydrogen sulfide and hydrogen cyanide poisoning, the discharge pipe of the ammonia evaporation system should be located on the downwind side of the manned operation.

2. How does the coking plant improve its own safety awareness?

Safety education plan Safety education is an important part of the company's production safety management and is an important tool for improving the quality of production and operation unit leaders and production management personnel. It is an important way to prevent unsafe behaviors and improve the safety quality of production workers. It is an important measure to prevent accidents and occupational diseases and protect the safety and health of workers in the production process. It is a basic work of the company's production safety management.

1. Contents of safety education (1) Safety legal education Safety legal education is to strengthen employees’ safety awareness by studying the country’s safety production guidelines, policies, laws and the company’s various safety production rules and regulations. purpose. (2) Safety knowledge and skills education Safety knowledge and skills education aims to improve employees’ safety technical quality.

The content includes fire safety, dust and poison prevention, electrical safety, etc., among which operating skills and how to prevent accidents are the main contents. 2. Methods of safety education (1) Create a safety production atmosphere. Promote safety production knowledge, advanced experience and accident lessons through wall posters, slogans, safety signs, etc. to create a strong safety production atmosphere and play an infective and subtle role. .

(2) Organizing safety activities The company has formed a good safety production atmosphere among teams or workshops by organizing activities such as safety knowledge competitions and safe operation skills competitions. (3) Safety training In terms of safety training, our company mainly enables employees to systematically master safety theoretical knowledge and safety practice by teaching safety technical knowledge and management knowledge at meetings, analyzing accident cases and specific demonstration operation requirements at the production site. operational capabilities.

3. Specific forms of safety education (1) Three-level safety education for new employees entering the factory. Three-level safety education refers to safety education in factories, workshops, and teams. Factory-level safety education is the responsibility of the administrative safety director and includes:

a. Safety production policy, the meaning of safety production. b. Safety production regulations, focusing on safety production regulations.

c. The company’s safety production rules and regulations and labor disciplines, and the necessity of abiding by them. d. General safety technology and basic occupational health knowledge, mainly including fire and explosion prevention, fire fighting and fire escape, dust and poison prevention, electrical safety, mechanical safety, electric shock, etc.

e. The enterprise's production safety status, safety matters in production, packaging, storage, loading and unloading, transportation and waste disposal, the main hazard factors and safety protection measures in the enterprise's production, and the status of major hazard sources, Key parts of safety protection. f. Accident emergency rescue measures, typical accident cases.

Workshop safety education is organized and implemented by the workshop leader. The content includes: a. The workshop’s safety production system and safety production requirements. b. The safe production status of the workshop, the production process and its characteristics, hazardous factors and safety protection measures in production, and key safety protection parts.

c. Emergency rescue measures when an accident occurs in the workshop, typical accident cases. Team safety education is organized and implemented by the team leader, including: a. The team's safety production system, job safety responsibilities, and labor discipline.

b. The safe production status of the team, production characteristics, operating environment, equipment status, fire protection facilities, dangerous parts and their safety protection requirements, safety matters for work connection and coordination between positions, and hidden danger reporting methods.

c. Hazardous factors and corresponding safety protection measures in the production of the team, especially this position, the performance and correct use of personal protective equipment, safety requirements for job operations, and safety requirements for the workplace.

Factory-level education focuses on legal education to enhance the consciousness of obeying rules and disciplines and safety awareness, and at the same time, general safety knowledge education is carried out. Workshop and team education focus on the awareness of hazard factors and dangerous parts, and safe operation skills. Master the procedures and methods of accident alarm and emergency rescue, and clearly explain the safety responsibilities of the position. Level 3 safety education is the focus of enterprise safety education.

(2) Safety education workers who change types of work or return to work after leaving their jobs. Workers who change types of work and are transferred to a new position are still new workers in the new position and do not understand the hazards and safety of the new position. Operational requirements, so before taking up the job, they must also receive safety education from the team, and workshop safety education must be carried out when employees are transferred across workshops. If you have been away from work for a long time (sick leave, maternity leave, etc.) and are unfamiliar with your original job, you must conduct team safety education before returning to work.

(3) Safety education when production conditions change. Changes in production conditions refer to changes in process conditions, production equipment, production materials, and operating environment. New production conditions will produce new hazard factors, and correspondingly there will be new protective measures and new safe operation requirements.

These are things that workers did not understand before. At this time, it is necessary to provide team safety education to workers based on the new safety issues caused by changes in production conditions. (4) Safety education for special operations personnel The company’s special operations personnel mainly include boiler workers, pressure vessel operators, etc. These personnel have received special training and obtained special operation qualifications.

However, it is still necessary to continuously enhance the safety awareness of special operations personnel and improve their safety technical level through safety education. (5) Safety education for the person in charge of the enterprise and the enterprise's production safety management personnel. The person in charge of the enterprise is the decision-maker and organizer of the enterprise's production and operation, and is also the person responsible for the enterprise's production safety. The safety management personnel are specifically responsible for the management of the enterprise's production safety. .

According to relevant national regulations, the safety education for such personnel is organized by the *** Comprehensive Safety Production Management Department. Only those who pass the safety education and assessment can take up their posts. (6) The safety education of other functional management departments of the enterprise is based on the principle of "managing production must manage safety, and whoever is in charge is responsible". The heads and team leaders of functional departments and production workshops are the persons responsible for production safety in their own departments, so they are all They should receive safety education including production safety regulations, enterprise safety production rules and regulations, safety production responsibilities of the department and position, safety management and occupational safety and health knowledge, accident emergency rescue measures and related accident cases.

Their safety education is the responsibility of the enterprise leader in charge of production safety, and the production safety management department organizes and implements it. (7) Regular safety education Regular safety education mainly includes safety arrangements before class, safety evaluation after class, safety activity days, regular safety meetings, accident scene meetings, etc.

4. Assessment management system (1) Employees in the new workshop must undergo three-level safety education before joining the company. After passing the factory-level safety education assessment, they will be assigned to a workshop for workshop safety education, and after passing the safety education again, they will be given team safety education.

Only factory level, workshop level and.

3. What are the main tasks of safety production in coking enterprises?

1. Warning signs and safety signs at on-site positions must not be arbitrarily moved.

2. The ground on site should be smooth, and anti-slip measures should be taken in rainy and snowy weather; all passages, staircases, and roads should be unobstructed. 3. Frequently check that the walkways, railings, high-altitude platforms, and ladders must be in good condition; all underground ditch covers are complete and intact.

4. The on-site lighting must be in good condition, and any defective lighting must be restored in time. 5. Fire-fighting equipment, indoor steam fire-extinguishing equipment and alarm devices must be kept in good condition and are not allowed to be used for other purposes, and must be kept by dedicated personnel.

6. Try to stand on the upper hand when operating to prevent poisoning. 7. When performing maintenance on pumps, motors and other equipment, do not wear gloves to prevent them from being involved.

8. It is prohibited to bake clothes on equipment, pipes and operating rooms. 9. It is strictly prohibited to throw tools, materials, ropes and other debris from high places to the ground. If necessary, special personnel should be provided to supervise.

10. It is prohibited to use rags, wooden sticks and other similar materials to block steam, gas or other liquid pipes and equipment.

11. When using rubber pipes to send steam for purging, the rubber pipes should be fixed with clips and should not be tied with wires or ropes.

12. Take timely measures and report when hidden dangers are discovered; rectify or monitor potential safety hazards in a timely manner.

4. What are the safety aspects that will be emphasized before the shift in the coking plant?

1. Be consistent with the actual situation and give full play to predictability. The so-called predictability means to predict in advance what may happen.

As the saying goes: "The vaccine should be taken in advance." To make the pre-shift meeting realistic and predictable (each position has different characteristics), the team leader must Understand relevant safety matters, conduct on-site inspections of the site where the work is about to be performed, check whether the safety protection devices of the equipment are in good condition, and promptly inform employees through the pre-shift meeting if any abnormal conditions are found, so that employees can clarify their goals, have a clear direction for their work, and implement the safety regulations set by the company. The system is taught to each employee, so that while accepting work tasks, he also receives a pre-job safety education to ensure the completion of work tasks and quality standards. It is true that there will be safety accidents in enterprise production, but looking at every accident, the reasons are often accidental and inevitable. Most of them are employees who develop habitual violations in daily operations, which over time leads to catastrophe.

Therefore, it is necessary to sound more warning bells in terms of safety warnings and predictability before work. 2. Highlight the key parts and maximize their timeliness. The pre-shift meeting is short in time. If you want to maximize its timeliness, you must grasp the key points and talk about the key parts so that employees clearly understand what they need to pay attention to. You must not scratch your eyebrows and beards, causing employees to Failure to grasp the key points and loss of work focus.

It is a waste of time and fails to achieve the expected results. The language is concise and concise, focusing on the effect of the pre-class meeting.

Maximize the subjective initiative of each employee, turn some management systems into the conscious behavior of each employee, and turn the tangible management system into the invisible line of defense in the hearts of employees. 3. People-oriented concept and give full play to its flexibility. Practice has proved that the safety concept of "people-oriented, safety first" plays an important role in the pre-class meeting.

Carefully analyze those accidents that claimed countless lives. How many of them were caused by illegal command and illegal operation at the beginning? How many cases have we not been punished for disregarding life and pursuing temporary interests? To a certain extent, the methods of illegal operation and suicide are different, but the consequences are the same; the methods of illegal command and robbery and murder are different, but the effect is the same; what is the difference between ignoring safety hazards and ignoring death? I believe that as long as we sincerely care about the lives of our employees, regard life as the first priority, and consider everything from the perspective of life, illegal behaviors and phenomena will decrease significantly, and the hope of survival will increase significantly. Therefore, the pre-class meeting should pay attention to people-oriented.

Of course, as the form of innovation changes, the employee pre-shift meeting can give full play to its flexibility according to its own characteristics. For example, using pre-shift meetings to recite the company's philosophy, hold safety oaths, tell safety stories, etc., to get employees moving does not take much time, but may produce unexpected results.

In short, we should give full play to the role of employees’ pre-shift meetings in safety production, strengthen employees’ safety awareness, activate employees’ internal motivation from “want me to be safe” to “I want safety”, and truly play a role in team safety important role in the construction process. .

5. Monthly draft on safety production in the coking plant

Each workshop (department, office) of the factory:

In order to implement the spirit of xxxx document, carry out in-depth safety work During the production month activities, we will do a solid job in safety production in the coking plant and make the following arrangements for the safety production month activities:

1. Guiding ideology:

With "safety first, prevention first" ", Comprehensive Management" as the guiding ideology, strengthen the sense of responsibility for safe production and anti-violation management, establish a sense of participation by all employees, put safety as the highest priority, improve employee safety prevention skills and awareness through various training and drills, and promote coking Factory safety production work.

2. Activity theme and time schedule:

Activity theme: Strengthening the safety foundation to promote safe development

Activity time: February 2, 2016-x x day

3. Work goals:

Through the implementation of the "Safety Production Month" activities, we will firmly establish the concept of people-oriented and safe development, and put safety production in a more important position. Improve the safety emergency plan system, promote the further implementation of safety production responsibilities, enhance employees' safety awareness, strengthen safety management, and nip potential accident hazards in their bud. (Safe production cloud training:)

4. Organizational structure:

Team leader: xxx Deputy team leader: xxx Members: xxx

5. Main activities :

1. Safety publicity. The Safety and Environmental Protection Department is responsible for producing safety publicity banners, and each department and workshop vigorously promotes and creates a safety atmosphere through pre- and post-shift meetings and blackboard newspapers;

2. Case study and experience activities. Compile a volume of safety accident cases that occurred in the group company in the past six months and distribute them to each workshop team for study. Each employee is required to write an "Accident Case Study Experience"; and it will be selected by each workshop (20 in the coking workshop, 20 in the chemical workshop 10 articles, 5 articles in the electrical instrument workshop) excellent works will participate in the evaluation, and the top 5 "excellent works" will be rewarded;

3. Carry out the "Operation to Eliminate Hidden Danger" activities, requiring the investigation of those around you Potential safety hazards are as follows:

(1) Each workshop leader must carefully organize and mobilize employees to carry out the "Operation to Eliminate Hidden Hazards", requiring each employee to combine the findings found during daily inspections, maintenance, inspections and production operations. potential safety hazards and boldly put forward their own rectification plans. Each person should find no less than 3 problems;

(2) The safety hazards reported by employees should be based on safety management deficiencies, on-site safety facilities, protective devices and The safety hazards existing in the on-site operating environment are mainly;

(3) The safety hazards reported by employees must indicate the hidden danger locations and defects, possible unsafe factors, and rectification plans;

< p> (4) When each workshop organizes the "Operation to Eliminate Hidden Hazards", it should focus on high, deep, remote, remote and safety management blind spots, and the investigation coverage should be comprehensive to ensure that it extends horizontally to the edge and vertically to the end.

4. Organize post employees to carry out discussion activities on memorizing and explaining procedures. The participants are post employees, section leaders, and workshop leaders. The purpose is to standardize operating procedures and improve theoretical knowledge. This time, memorizing and following the rules was organized by the Safety and Environmental Protection Department.

5. Observe the emergency plan drill for accidents in the carbon black factory. The purpose is to improve the organization and rescue capabilities of employees in the factory for emergency accidents. Observers: workshop directors, section leaders, technicians, team leaders and heads of departments.

6. Organize and watch the safety education CDs of "Fire Prevention and Fire Fighting on Site", "Accident Case Warning Record", and "Safety Production Training for Grassroots Cadres". Organized viewing time and location: xx conference room on the third floor.

8. Accident plan drill activities. The details are as follows:

Coking workshop: blackout plan;

Chemical production workshop: blackout plan, fire and fire prevention plan.

Organized by each workshop, the drill will be conducted from x to x, month x, and will be conducted in batches.

6. Activity requirements:

The Safety Production Month activities should be guided by the theme of "Strengthening Safety Foundation and Promoting Safety Development", closely focusing on the company's annual safety management goals, and thoroughly implementing them The safety production policy of "safety first, prevention first, comprehensive management".

1. Each workshop and department should attach great importance to the implementation of safety month activities, hold a mobilization meeting around the actual situation of the workshop, and formulate a safety production month activity plan for the workshop based on the factory safety month activity plan and submit it to the Safety and Environmental Protection Department And promptly summarize the activities;

2. The top leaders of each workshop should personally organize various activities and mobilize employees to actively participate.

Through the activities, we will investigate safety hazards, improve the safety skills and awareness of all employees, and promote the safe development of the company;

3. After the activities, a summary meeting will be held to reward workshops that have performed well, and to For workshops with poor performance, the person in charge must be evaluated;

4. During the "Safety Production Month", each functional department must increase publicity and reporting efforts to promote advanced and expose violations and irresponsibility Leading cadres;

5. During the activity month, punishment and assessment should be intensified for various accidents that occur.

xx Coking Plant

February 2, 2016

6. How to write the safety management system of the coking plant

1. Safety production Management system 1. The safety management system of Xinyu Coal Gasification Co., Ltd. is to implement the national production safety guidelines and labor protection policies, strengthen production safety management, ensure the safety and health of employees in production, protect company property, and promote the development of the company. , to prevent accidents, this system is specially formulated.

Section 1 General Provisions Article 1: Company employees have the following rights and obligations: 1. Must comply with and supervise the safety production management system. 2. Actively participate in safety production activities, put forward reasonable suggestions, and continuously improve working conditions and working environment.

3. Respond to and handle dangerous situations in a timely manner and actively participate in rescue accidents. 4. The right to prohibit anyone from operating in violation of regulations and the right to refuse any illegal instructions.

5. We have the right to refuse to implement or report to the higher-level leaders any wrong decisions or behaviors made by superior units and leaders that ignore the safety and health of employees. 6. The company has the right to make suggestions on the unit’s safety production work regarding the hazards, protective measures and accident emergency measures that exist in its workplaces and workplaces.

7. When an emergency situation is discovered that directly threatens personal safety, the employee has the right to stop operations or evacuate the workplace after taking possible emergency measures. 8. During the operation, you must strictly abide by the unit's production safety management system and operating procedures, obey management, and wear and use labor protection equipment correctly.

9. You should receive education and training on production safety, master the production safety knowledge required for your job, improve production safety skills, and enhance accident prevention and emergency response capabilities. 10. If any accident hazards or other unsafe factors are discovered, they should be reported immediately to the production safety department and the person in charge of the unit. The person who receives the report should organize and handle it in a timely manner.

Article 2: Leaders at all levels of the company must establish the idea of ??"safety first, prevention first" and establish and improve a safe production management system and responsibility system. In the process of organizing production, safety work must be given top priority. When production and safety conflict, production must obey safety.

Article 3: The company’s safety work must combine professional management with employee management. Each department should establish a safety leadership group with *** safety officers in the team to form a company safety production management network . Article 4: The general manager and the safety committee of the company are responsible for the leadership of the company's safety work, and the production department is responsible for daily safety work.

Article 5: When preparing production, technology, transformation and other plans, the company must prepare a safety measure plan, including various measures aimed at improving working conditions, preventing various accidents, and preventing occupational diseases. Article 6: The supplies, materials, and equipment required for safety measures projects should be included in the procurement and supply plan by the supply department to ensure timely supply.

Article 7: The funds required for safety measures projects shall be drawn according to national regulations and shall be supervised by the financial department to ensure that the funds are earmarked for exclusive use. Section 2 Safety Regulations Article 1: All departments of the company must adhere to safe production and civilized production, do not command or operate in violation of regulations, and strictly implement safety operating procedures.

Article 2: For special types of work such as electrical, lifting, boilers, transformers, welding, vehicles, driving, flammable, toxic and explosive, people must have good ideological quality, strong sense of responsibility, good health and possess Employees with certain production experience, technical training from relevant departments, assessment and operation certificates will be employed. During operation, strictly follow the relevant safety operating procedures stipulated by the state.

Article 3: All the company’s equipment and building facilities must comply with safety regulations, and be regularly maintained and maintained by the units where the equipment and facilities are located in accordance with relevant regulations. Article 4: Each equipment should be operated by a dedicated person who has mastered the performance of the equipment. It is strictly prohibited to start equipment other than the type of work or hand over the equipment of this type of work to others for operation.

Article 5: All lifting tools must meet safety requirements, be used and kept by dedicated personnel and inspected and tested regularly. Article 6: Various safety signals, safety devices, instruments, and warning signs should be regularly inspected and tested to ensure safety, sensitivity, reliability, and are not allowed to be dismantled or damaged at will. Whoever uses them shall keep them, and the relevant functional departments are responsible for testing.

Article 7: All equipment and tools used for production safety must not be moved or damaged without authorization. Relocation and use must be approved by the General Manager of the Production Safety Department and the Director of the Safety Committee. Article 8: The production department must establish a regular maintenance system for mechanical and electrical equipment. Each employee should do the "three good" (good use, good management, and good maintenance) and the "four good" (know how to use, know how to use, and know how to maintain) the equipment that he uses and manages. Maintenance, inspection, and troubleshooting of general accidents) to ensure safe production of equipment.

Article 9: Any inspection or maintenance of machinery and electrical equipment must go through power outage procedures in advance according to regulations, hang maintenance warning signs, and appoint dedicated personnel to monitor. It is strictly forbidden for others to close the switch, and it is forbidden to work with electricity. Equipment inspection and repair must be carried out with mechanical and electrical cooperation.

Precautions for inspection before driving on the job: whether there is anyone on site for maintenance, whether there are objects that may affect driving, and whether safety protection items are fully installed. When driving, make sure that no one is on site for maintenance, that there are no objects that may affect driving, and that safety protection items are fully installed.

Article 10: When operating or overhauling in toxic gas places, gas masks should be worn and special instruments should be used to detect the indicators before proceeding. During maintenance, special personnel must be provided for supervision.

Article 11: Electrical, mechanical equipment and driving tracks must have reliable grounding or repeated grounding safety measures in accordance with regulations, and the following must be achieved: 1. Non-electrical personnel are not allowed to install or repair electrical equipment and line. 2. Units that install temporary electrical equipment and wires must strictly implement the form-filling and approval system and must dismantle them promptly after use.