GB 43049-2023 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 43049-2023 | English | 1005 |
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Safety technical conditions for continuous casting machines
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GB 43049-2023: Safety technical conditions for continuous casting machines---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB43049-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.180
CCS H 93
Safety technical conditions for continuous casting machines
Issued on. SEPTEMBER 08, 2023
Implemented on. OCTOBER 01, 2024
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 9
4 Classification of continuous casting equipment and major hazards... 12
5 Safety requirements and safety measures... 16
6 Verification requirements for safety requirements and safety measures... 54
7 Usage information... 54
Appendix A (Normative) Safety requirements and measures for electrical equipment
and control devices... 61
Appendix B (Normative) Noise test specification... 68
References... 78
1 Scope
This document specifies the safety requirements, safety measures, verification
requirements for continuous casting equipment, during design, manufacturing,
assembly, transportation, installation, adjustment, commissioning, operation,
maintenance, shutdown. It also specifies the key use information of signs, alarms,
delivery and other steps of continuous casting equipment, during transportation,
assembly, operation, maintenance.
This document is applicable to continuous casting machines such as slab billets, square
billets, rectangular billets, special-shaped billets, round billets, and other similar
equipment (such as horizontal continuous casting machines, continuous casting
machines for headless rolling production lines, etc.).
2 Normative references
The contents of the following documents constitute the essential terms of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this standard; for undated references, the
latest version (including all amendments) applies to this document.
GB 2893 Safety colors
GB 2894 Safety signs and guideline for the use
GB 3096 Environmental quality standard for noise
GB 4053.1 Safety requirements for fixed steel ladders and platform - Part 1.Steel
vertical ladders
GB 4053.2 Safety requirements for fixed steel ladders and platform - Part 2.Steel
inclined ladders
GB 4053.3 Safety requirements for fixed steel ladders and platform - Part 3.
Industrial guardrails and steel platform
GB 4943.1 Information technology equipment - Safety - Part 1.General
requirements
GB 5083 General rules for designing the production facilities in accordance with
safety and health requirements
GB/T 5226.1-2019 Electrical safety of machinery - Electrical equipment of
machines - Part 1.General requirements
GB 6222 Safety code for gas of industrial enterprises
GB 7247.1 Safety of laser products - Part 1.Equipment classification and
requirements
3 Terms and definitions
The terms and definitions defined in GB/T 32818-2016 and JB/T 12938.1-2016, as well
as the following terms and definitions, apply to this document.
3.1 Casting platform
The working area for molten steel pouring, continuous casting production operations
and equipment installation, maintenance and spot inspection, which is composed of
steel structure or reinforced concrete.
3.2 Cutting system
A mechatronic system that cuts the billet to the required length.
3.3 Run-out-area
Cooling bed and product collecting system
A place for transporting, cooling, finishing, cleaning, grinding, collecting, storing
billets.
3.4 Dummy bar system
A special equipment integration that guides the billet along the casting stream guide
device when continuous casting starts, blocks the lower opening of the crystallizer
before pouring, guides the casting stream to achieve continuous casting after pouring.
4 Classification of continuous casting equipment and major
hazards
4.1 Classification of continuous casting equipment
4.1.1 Casting platform equipment
The casting platform equipment consists of the following main single equipment.
4.1.2 Main equipment of continuous casting machine
The main equipment of the continuous casting machine consists of the following main
single equipment.
4.1.3 Cutting area equipment
The cutting area equipment consists of the following main single equipment.
4.1.4 Equipment in the run-out-area
The equipment in the run-out-area consists of the following main single equipment.
4.1.5 General equipment
General equipment consists of the following main equipment and systems.
4.2 Major hazards
This article includes all major hazards, dangerous conditions and events, as long as they
are involved in this document, which shall be determined as major hazards through risk
assessment; measures shall be taken to eliminate their hazards or reduce their risks.
5 Safety requirements and safety measures
5.1 Overview
5.1.1 General requirements
5.1.1.1 Basic conditions
The basic conditions for safety requirements are as follows.
5.1.1.2 Summary of this document
The continuous casting machine that complies with this document shall comply with
the safety requirements and safety measures specified in this document.
5.1.2 Layout and on-site inspection of continuous casting machine
The supplier shall conduct a full inspection on site, to ensure the following items of
continuous casting machine are well arranged and operate safely.
5.1.3 Safety layout
The supplier shall prepare the safety layout document of the continuous casting machine.
The purpose of safety layout is usually to provide spatial location information of
equipment in the continuous casting machine related to safety, through one or more
drawings, including the following items.
5.1.4 Safety devices
Safety devices shall be easy to inspect and maintain. Safety devices shall be protected
to prevent predictable damage. Safety devices shall be set up in accordance with the
requirements set forth in GB/T 15706, GB/T 16855.1-2018, GB/T 16855.2, GB/T
16856; they shall be strong and reliable enough to ensure stable operation.
5.1.5 Hydraulic, lubricating, pneumatic, gas and cooling water systems
The requirements for hydraulic, lubricating, pneumatic, gas and cooling water systems
are as follows.
5.1.7 Fluids discharged into special tanks
The supplier shall clearly indicate the fluids discharged into special tanks; the
equipment manual shall include discharge information.
5.1.8 Personal protective equipment
Personal protective equipment requirements are as follows.
5.1.9 Alarm devices and safety signs
The requirements for alarm devices and safety signs are as follows.
5.1.10 Right of access
5.1.11 Escape route
The escape route shall meet the following requirements at a minimum.
5.1.12 Automation equipment
Automation equipment shall comply with the provisions of GB 7247.1 and GB 28526.
It shall be designed with reference to GB/T 5226.1-2019, GB/T 15706, GB/T 16855.1,
GB/T 16856, GB/T 18209.1, GB/T 18209.2, GB/T 18209.3, GB/T 34136.
5.1.13 Safety control system
Select safety control equipment according to the requirements described in A.2 and with
reference to GB/T 16855.1-2018 and GB/T 16855.2.The function of each safety control
device shall be considered in combination with each element in the safety control
system; the safety level of each element of the system shall not be reduced.
5.1.14 Surface temperature and heat dissipation
5.1.15 Ergonomic principles
When designing a continuous casting machine, the following principles shall also be
taken into account.
5.1.17 Continuous casting machine operating position
5.1.18 Local rotatable control box
Various operating instructions issued by the local rotatable control box next to the
continuous casting machine crystallizer shall take precedence over the operating signals
issued by other consoles or pulpits. The start and stop instructions on the rotatable
control box shall be operated by buttons or switches; the operation process and status
can be clearly seen on the pulpit display.
5.1.19 Power failure
The power failure safety requirements are as follows.
5.1.20 Hazardous areas
Hazardous areas and their requirements are as follows.
5.3.2 Manipulation of operation control devices
If it does not endanger the safety of the operator, the operator shall have a good field of
vision beyond the dangerous area, such as setting up an industrial TV. If the operation
control device stops being operated, the operation shall stop immediately.
5.3.3 Mechanical restraints
The requirements for mechanical restraints are as follows.
5.3.4 Accessible rotating and moving parts
The safety requirements for accessible rotating and moving parts are as follows.
5.4 Noise requirements
6 Verification requirements for safety requirements and
safety measures
The verification requirements for safety requirements and safety measures are as
follows.
7 Usage information
7.1 Signs and alarm devices
Safety signs and alarm devices shall comply with the provisions of 5.1.9, GB/T 16273.1,
GB/T 18209.1, GB/T 18209.2.
7.2 Documents delivered with the continuous casting machine
7.2.1 Equipment instruction manual
The supplier shall provide the equipment instruction manual for each continuous
casting machine, which shall cover the main equipment of the continuous casting
machine and all auxiliary equipment. It shall comply with the requirements of 3.9, 4.7,
Appendix A of GB/T 9969-2008 and GB/T 15706.The instruction manual shall specify
the characteristics and safety countermeasures of a specific machine; it may be
improved or expanded according to the specific machine or equipment. The layout
structure and content of the instruction manual are as shown in 7.2.2.
7.2.2 Contents of the machine or equipment manual
In terms of safety, the machine or equipment manual includes.
7.2.3 Instructions for transportation, assembly, installation
In terms of safety, the contents of the instructions for transportation, assembly,
installation include.
7.2.4 Instructions related to equipment commissioning and disassembly & assembly
In terms of safety, the instructions related to equipment commissioning and disassembly
& assembly are as follows.
7.2.5 Equipment operation manual
7.2.6 Equipment maintenance manual
In terms of safety, in addition to implementing the overall matters related to equipment
maintenance in 5.1.27 and 5.1.28, the equipment maintenance manual shall also include
descriptions of the following contents.
7.3 Minimum required markings
The following information (such as in the pulpit of the continuous casting machine)
shall be clear, easy to read, durable.
7.4 Personnel training
The personnel training requirements related to the use and operation of continuous
casting equipment are listed as follows.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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