2. Wear and use personal protective equipment correctly in the process of maintenance training. All personnel involved in maintenance work must be given safety education. When entering the maintenance site, they must wear labor protection articles and safety helmets.
Must be tied.
3, after the blast furnace damping down, the opening and closing of the blast furnace blind flange valve should appoint someone who's in charge, and hang warning signs (maintenance). When gas system equipment maintenance and gas facilities are stopped, the gas source must be reliably cut off and the gas pipeline must be connected.
The internal replacement of road facilities is clean (CO < 24 ppm), the pressure relief valve and manhole are opened to communicate with the atmosphere, and the damping down and maintenance gas system are replaced according to the gas replacement scheme.
4, into the gas area homework must be more than two people, wearing a carbon monoxide alarm, the scene is equipped with air respirator and fire extinguishers.
5, check the "four prevention" measures to prevent personal accidents, to prevent falling, smashing and bumping accidents; Prevent electric shock accidents; Prevent burns and suffocation accidents; Prevent mechanical injury accidents.
5. 1 Prevent falling, smashing and bumping accidents.
Fences, safety warning signs or other protective measures should be set below the working face; Don't throw tools or materials up and down; All personnel entering the work site must wear safety helmets; Trenches, pits, holes, manhole covers and fences removed during maintenance shall be removed.
The site must be restored to a safe state, and the platforms and guardrails cut off for maintenance on site should be restored to their original state after maintenance.
5.2 Prevent electric shock accidents
The use of electric tools must match the use of leakage protectors; The voltage of the line lamp is not allowed to exceed 36 volts; Portable lamps used in metal containers are not allowed to exceed 12 volts; Power tools shall not use flower wires and plastic wires, but rubber sheathed cables; Temporary power supply
Electric tools should meet the requirements of electrical safety operation procedures.
5.3, prevent burns, suffocation accidents.
Warning signs should be hung on the maintenance equipment, and natural or forced ventilation should be maintained when working in the container, and there should be special personnel to monitor it (O2 =20.9%). Strictly implement the "eight votes" system for entering confined space, and hot work and aerial work of gas facilities must be handled.
Work ticket, and formulate corresponding security measures. High-temperature equipment should be operated after the equipment is cooled to prevent burns.
5.4 Prevent mechanical injury accidents
Mechanical damage should be prevented during equipment maintenance; The inspection of running equipment should be strengthened during operation; After work, personnel and tools should be counted to prevent them from being left in the equipment. Maintenance personnel are not allowed to test drive by themselves; After the maintenance of rotating machinery, protective equipment must be restored in time.
During commissioning, the installation and protection facilities shall be confirmed at the site and guarded by special personnel. Personnel are prohibited from approaching during commissioning.
Zibo Wei Heng Valve Co., Ltd. has passed the market test of 16 years, and has a mature research and development technology for producing gas blind plate isolation valves. It enjoys a good reputation in the fields of toxic, harmful and flammable gases such as industrial gas, flue gas, chemical industry, metallurgy and environmental protection.
The structural features of the electric gas blind plate isolation valve are as follows:
1. The valve body adopts three-point locking sector gate structure, which is compact in structure, good in overall rigidity and light in weight.
2. The sealing part adopts stainless steel and rubber sealing ring, which has good sealing performance and long service life. There is a sealing ring on the gate, which is convenient for replacing the sealing ring during maintenance.
3. Electric operation, smooth operation, flexible start and reliable action. The clamping mechanism adopts nut clamping, which has good self-locking.
4. The electric fan-shaped glasses valve is equipped with stainless steel bellows, which has the characteristics of strong flexibility and long service life.
5. The electric blind valve can be manually operated or remotely controlled on site.