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GB 25683-2010: Molten steel ladle -- Safety requirements
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Molten steel ladle -- Safety requirements
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GB 25683-2010
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Basic data | Standard ID | GB 25683-2010 (GB25683-2010) | | Description (Translated English) | Molten steel ladle -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | J61 | | Classification of International Standard | 25.120.30 | | Word Count Estimation | 8,879 | | Date of Issue | 2010-12-23 | | Date of Implementation | 2012-01-01 | | Quoted Standard | GB/T 699; GB/T 700; GB/T 985.1; GB/T 985.2; GB/T 3077; GB 5226.1; GB/T 9439; GB/T 9445; GB/T 9969; GB/T 11352; GB 12265.3; GB/T 14776; GB/T 15706.2-2007; GB/T 16251; GB/T 16856.1; GB/T 23583.1; GB/T 23583.2; JB/T 1644; JB/T 5000.15; JB/T 7688.15; JB/T 9873 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 10 of 2010 (No. 165 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the ladle of molten steel design, manufacture and use of safety requirements. This standard applies to steelmaking and casting liquid steel ladle (hereinafter referred to as the ladle). | GB 25683-2010: Molten steel ladle -- Safety requirements---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Molten steel ladle.Safety requirements
ICS 25.120.30
J61
National Standards of People's Republic of China
Liquid steel ladle safety requirements
Issued on. 2010-12-23
2012-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
All the technical contents of this standard is mandatory.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Machinery Industry Federation.
This standard by the National Foundry Machinery Standardization Technical Committee (SAC/TC186) centralized.
This standard was drafted. Qingdao Green Environmental Protection Equipment Co., Ltd., Qingdao Environmental Protection cupola furnace power plant, foundry machinery Weihai workers have
Limited, Qingdao VWIN Metal Structure Co., Ltd., Qingdao Environmental Protection Zhongzhida Melting Equipment Co., Ltd. Qingdao Machinery Co., Ltd. Han and Tang Dynasties.
The main drafters of this standard. Ronny first, Qin Yuqi, Chi Yingjie, Wang Hui, DUAN Jin Ting, in Guohua.
Liquid steel ladle safety requirements
1 Scope
This standard specifies the ladle of molten steel design, manufacture and use of safety requirements.
This standard applies to the production of steel-making and casting liquid steel ladle (hereinafter referred to as a ladle).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 699 high-quality carbon structural steel
GB/T 700 carbon structural steel
GB/T 985.1 gas welding, arc welding, gas welding and beam welding Recommended groove
GB/T 985.2 SAW recommended groove
GB/T 3077 alloy steel
GB 5226.1 mechanical and electrical safety of machinery - Electrical equipment - Part 1. General requirements
GB/T 9439 Gray Iron Castings
GB/T 9445 NDT personnel qualification and certification
GB/T 9969 General Instructions industrial products
GB/T 11352 Carbon steel castings for general engineering purposes
GB 12265.3 Safety of machinery to avoid crushing of parts of the human body minimum spacing
GB/T 14776 Ergonomic design principles job size and value
GB/T 15706.2-2007 Safety of machinery - Basic concepts, general principles for design - Part 2. Technical principles
Ergonomic principles GB/T 16251 design of work systems
GB/T 16856.1 Safety of machinery - Risk assessment - Part 1. Principles
GB/T 23583.1 ladle of molten steel - Part 1. Types and basic parameters
GB/T 23583.2 molten steel ladle Part 2. Technical requirements
JB/T 1644 Foundry machinery - General requirements
Part 15 JB/T 5000.15 Heavy mechanical general techniques. non-destructive testing of steel forgings
JB/T 7688.15 metallurgical casting crane crane technical conditions
JB/T 9873 Metal Cutting Machine welded General technical requirements
3 important risk projects
3.1 General
The following items are important risk according to GB/T 16856.1 requirements for equipment within the scope of this standard is the result of the risk assessment.
These dangerous items may occur under conditions of use press equipment specified in the instructions or in the transportation, installation, adjustment, repair, demolition and other
Session.
3.2 Mechanical hazards
3.2.1 by the ladle mechanical strength, mainly the stability may have broken, cracked, overturning and moving dangerous unpredictable.
3.2.2 by the ladle components and objects thrown or falling shock hazard generated.
3.2.3 by the ladle surface, edges or corners produced stabbed or cut hazards.
3.2.4 or fall from the high-altitude operations generated around the device, slipping, tripping hazard.
3.2.5 Refractory improper operation caused by the rupture, leading to damage the parts off the ladle, the risk of capsizing.
3.2.6 by the lifting equipment caused by improper configuration ladle lifting failure caused by overturning the ladle off the danger.
3.2.7 Cleaning up the package lining, because the lining stick hanging steel slag caused by stab wounds or cuts the risk of shedding its lining and produced by crushing hazard.
3.2.8 by a collision ladle lifting process to persons generated a crushing hazard.
3.2.9 Due to squeeze ladle narrow operating environment resulting risk of injury.
3.2.10 ladle by the operating tools and materials and the improper use of improper placement bumps produced a fall hazard.
3.3 Electrical Hazards
3.3.1 Risk of electric shock generated by the electrical system.
3.3.2 ladle dangerous movement by the unexpected failure of the electrical generating system caused.
3.3.3 fire danger caused by the electrical fault.
3.4 thermal hazards
3.4.1 steel liquid spills, splashes, burns flame and thermal radiation generated by the burns and burns.
3.4.2 Danger of burns caused by the high temperature enclaves.
3.4.3 slag caused by the burns, burns and fire hazard.
3.5 Other hazards
3.5.1 inhalation and poisoning hazard caused by smoke and other harmful gases and prevent the danger caused by normal operations.
3.5.2 burns caused by the water vapor, the risk of burns.
3.5.3 visual impairment caused by hazardous liquid steel surface of the light radiation.
Ignore 3.5.4 ladle design ergonomic ergonomics principles arising from danger.
3.5.5 Due to the risk of the use of personal protective measures are not generated.
3.5.6 Explosion hazard due to standing water or wet locations pouring molten steel caused.
3.5.7 Explosion hazard due to standing water or wet liquid or ladle pouring steel slag caused.
3.5.8 Since the molten steel spilled into the bag or hook shaft and bearing clearance, resulting in dangerous operation failures.
4 safety requirements and measures
4.1 Mechanical hazards
4.1.1 ladle provisions should be consistent with GB T 23583.2 and/JB/T 1644, the drawings and technical documents in accordance with prescribed procedures approved
manufacture.
4.1.2 ladle barrel, hanging climbing, beam, boom materials used should be consistent with GB/T 700 provisions.
4.1.3 pouring bags shaft seat materials used shall comply with GB/T 11352 of.
4.1.4 ladle used in the alloy structural steel shall comply with GB/T 3077's.
4.1.5 package axis mechanical properties of materials used in not less than 35 steel and shall comply with GB/T 699's.
4.1.6 gearboxes used iron castings shall comply with GB/T 9439, and steel castings shall comply with GB/T 11352 of.
Testing and inspection should be carried out after the 4.1.7 package axis machining, testing requirements should be consistent with JB/T 5000.15 regulations. Inspectors should
GB/T 9445 are qualified.
4.1.8 weld groove ladle all welded parts should be consistent with GB/T 985.1 and GB/T 985.2 requirements, welding quality should be consistent
JB/T 9873 requirements of.
4.1.9 ladle should be self-locking or locking, the locking device should be safe and reliable.
4.1.10 ladle crane climbing down the shoulder and beams supporting surface should be close, when the fastening bolt should not be able to withstand the effect of 2 times the rated load.
4.1.11 ladle main security card and on both sides of the boom and the gap should not be greater than 5mm.
4.1.12 ladle crane climbing, strength design safety factor of not less than 10 boom, beams, strength design safety factor of the package is not axis
It should be less than 5.
4.1.13 ladle 2 times the rated load for not less than five times, there should not anomalies.
4.1.14 sliding gate operator should be flexible and reliable, there should not be dripping molten steel after closing.
4.1.15 stopper rod refractory material should be sealed and reliable protection, there should be no leakage of liquid steel after tapping hole is closed.
4.1.16 ladle lifting equipment shall comply with the relevant safety requirements, lifting the ladle road shall comply with JB/T 7688.15 of.
4.1.17 ladle when lifting, should be kept a safe distance from personnel, and set warning signs.
4.1.18 ladle member should be no sharp edges and burrs.
4.1.19 build ladle should set security platforms and scaffolding.
4.1.20 predetermined drying process ladle lining should not be cracks and defects.
4.1.21 package into work should wear safety protective equipment, field staff should be more than two.
4.1.22 ladle placed no hanging, the beams should go to the lowest position; when the beam vertically, with the boom should secure Kaka in prison.
4.1.23 repair kits venue should have sufficient lighting and ventilation facilities; ground should secure channel, placement should not impede security tools and materials
Traffic.
4.1.24 lifting the minimum distance of the ladle and personnel shall comply with the provisions of GB 12265.3.
Jobs ladle size 4.1.25 The operator shall comply with the provisions of GB/T 14776 of.
4.2 Electrical Hazards
4.2.1 The electrical system shall comply with the requirements of GB 5226.1.
4.2.2 electrical contact with the ladle and the cable should be a reliable insulation and anti-splash molten steel means that avoid electrical ladle of molten steel and heat-affected
Burns.
4.2.3 Electric, there should be between the cable and the steel ladle reliable insulation, steel ladle avoid charging.
4.2.4 Cable connection with the ladle fixed and should be a reliable anti-off device to prevent the destruction of joints produce pull off.
4.2.5 Electric ladle lifting preceded in power, unplug it and then plug pouring plug in and power transmission.
4.2.6 and ladle on the ground should not be connected to the towing cable.
4.2.7 repair kits with lights should be safe voltage 36V; suspension cables of the power tool use.
4.3 Thermal dangerous security requirements and measures
4.3.1 The operator shall use a ladle in wear safety protective equipment.
4.3.2 ladle to put down a smooth, avoid parking in the ladle can cause inclined place.
4.3.3 level with the top of the package body should leave some clearance height, height clearance shall comply with GB/T 23583.1 of.
4.3.4 should spatter may result in injury, damage to the thermal radiation of the place pouring molten steel and slag.
4.3.5 should not use the bag is lined with cracks ladle.
4.3.6 Cleaning up the package liner, the liner temperature should not exceed 50 ℃.
4.3.7 ladle operating environment should be provided with a ventilation and dust removal device, at any time to exclude dust.
4.3.8 should not be cooled with water hot ladle.
4.3.9 liquid steel should wear dark goggles or face shield.
4.3.10 Setting fence and warning signs in the ladle work area to prevent non-staff into the ladle workspace.
4.4 Other hazards
4.4.1 In the lifting process, should secure Kaka prison boom, in order to ensure smooth and safe barrel.
4.4.2 ladle reduction mechanism and ante mechanism to regularly add hot grease.
4.4.3 ladle design, manufacture and use should be consistent with GB/T 16251 requirements.
4.4.4 ladle operator's personal safety gear material, structure and working conditions should adapt, can effectively prevent the risk factors on people
Body injury.
4.4.5 In the electric ladle electrical installation position clear warning signs should be set against electric shock.
4.4.6 obvious safety warning signs in the ladle containing liquid steel pick, pouring molten steel, clear packing location.
4.4.7 ladle tilting mechanism, the bail should be structured so that the operation convenient.
4.4.8 ladle reducer shaft and packet should be set to prevent security guards spilled into the molten steel.
Determining safety requirements and measures 5
5.1 General
Ladle should comply with this standard in Chapter 4, when determined by several methods the results should be the same. It is determined as follows.
5.2 Test method for determining a function
Through the security check function test ladle function meets the requirements. If for technical reasons or can only function test can not be
Use destructive tests to validate methods press the 5.3, 5.4 and 5.5 is given.
5.3 second detection method for determining
With detection equipment, instruments, preference measurement methods and standardization of existing check ladle meets the requirements. If the instrument
Measuring apparatus and methods can not meet the ladle or safety inspection safety requirements and measures are qualitative method given in 5.4, 5.5 press.
5.4 Calculation method of determining or viewing pattern 3
Or using the calculated pattern to analyze and check the ladle meets the requirements for certain specific requirements (such as stability, center of gravity position, the mechanical strength
Etc.) apply this approach. If only by calculation or pattern we can not draw definitive conclusions, given the 5.5 method press.
5.5 observe the method of determining 4
By visual determination of specified components, check whether the ladle and performance requirements.
NOTE. To observe the inspection or review include the ladle usage information.
6 Use Information
6.1 Warning Messages
Ladle visual signal (such as light), auditory signals (eg, sound) device shall comply with the provisions of GB/T 15706.2-2007 in 6.3.
6.2 mark
6.2.1 signs, symbols (pictograms), text warnings should be consistent with GB/T 15706.2-2007 6.4 and related standards.
6.2.2 The following information shall be marked with the ladle
a) manufacturer and supplier (if necessary) the name and address;
b) Year of manufacture;
c) the name of the model;
d) serial number;
e) the various signals and warning devices, signs, text warning;
f) rated load capacity ladle;
g) the total weight of the ladle.
6.3 User's Guide
6.3.1 Instructions shall comply with 6.5 and GB/T 9969 provisions of GB/T 15706.2-2007.
6.3.2 Instructions shall include the following.
a) a detailed description of the ladle protection and safety devices.
b) the safety of the device user should be requested.
c) detailed description of the ladle safety procedures and safety procedures should include at least the following.
--- Technical parameters recommended packing material;
--- Lining of cleaning, repair, masonry and drying requirements;
--- Ladle installation and replacement of parts and the refractory spout member;
--- Ladle lifting, parking, dressed and pouring of molten steel;
--- Other security operational requirements (such as security checks, regular maintenance, parking place, pouring liquid steel scrap, tools in contact with the liquid steel pre
Heat, repair kits and pouring location ventilation).
d) Details of other operators may need protection, such as protective equipment.
When e) Before installation, fault detection, maintenance or repair and use, to eliminate or reduce the risk, the ladle into the mechanical condition zero
For detailed steps to be followed, and to verify whether the method is in the zero state machinery.
f) fault diagnosis, rule out a detailed description and method of adjustment before starting maintenance.
g) a detailed description of repair and maintenance procedures and requirements.
h) lifting instructions.
i) on the use of protective measures and work side constraints.
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