GB 43049-2023
Continuous casting machine safety technical conditions (English Version)
- Standard No.
- GB 43049-2023
- Language
- Chinese, English version preview
- Release Date
- 2023
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB 43049-2023
- Introduction
Analysis of the core content of the standard
Equipment classification Main hazard sources Protection level requirements Pouring platform equipment Steel liquid leakage, high temperature radiation PLr=d level (EN ISO 13849) Continuous casting machine host Mechanical extrusion, steam burns Category 3 (GB/T 16855.1) Cutting area equipment Flame jet, smoke poisoning IP54 protection (GB/T 4208)
Key technical requirements
Hydraulic system safety:HFDU flame-resistant hydraulic fluid (ISO 12922) must be used, hose rupture protection devices must be installed on key pipelines, and accumulators must comply with pressure vessel standards.
Cooling water system:The independent emergency cooling system must maintain a water supply capacity of 30-40 minutes, and the crystallizer leakage should immediately trigger the shutdown interlock.
Special risk prevention and control
- Radioactive source management:Radioactive sources used for mold level detection must be stored in lead containers, and triple warning signs must be set up at the installation location
- Ladle turret:Seismic fortification shall be in accordance with the key fortification category (GB 50223), and the hydraulic accumulator shall ensure 270° accidental rotation capability
- Sealed room operation:A double-person interlocking mechanism must be configured, and a 6mm steel wire protective net must be installed at the steam exhaust outlet
Implementation suggestions
- Establish a three-dimensional risk matrix, and conduct quantitative assessment in combination with the 19 major hazards in Table 1
- The safety circuit of automation equipment shall meet the SIL2 level (GB/T 20438)
- Noise control must meet both the 85dB(A) limit of GBZ 2.2 and the ISO 11202 test specification
GB 43049-2023 history
- 2023 GB 43049-2023 Continuous casting machine safety technical conditions