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GB 25521-2010: Mine screening equipment -- Safety requirements
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Mine screening equipment -- Safety requirements
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Basic data | Standard ID | GB 25521-2010 (GB25521-2010) | | Description (Translated English) | Mine screening equipment -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | D95 | | Classification of International Standard | 73.120 | | Word Count Estimation | 10,127 | | Date of Issue | 2010-12-01 | | Date of Implementation | 2011-10-01 | | Quoted Standard | GB 2894; GB/T 3766; GB 3836.1; GB 4053.1; GB 4053.2; GB 4053.3; GB 4351.1; GB 5226.1; GB/T 5748; GB/T 7932; GB/T 8196; GB/T 9969; GB/T 13306; GB/T 13325; GB/T 15706.1-2007; GB/T 15706.2; GB 16754; GB/T 16855.1; GB/T 17300; GB 17888.2; GB 17888.3; GB 18152; GB/T 19886 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 9, 2010 (No. 164 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 mine danger list screening equipment, safety requirements and/or measures its judgment, the use of information. This standard applies to mining screening equipment. It includes shaker, the fixed and rotating sieve screen (hereinafter referred to as screening devices). | GB 25521-2010: Mine screening equipment -- 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.
Mine screening equipment.Safety requirements
ICS 73.120
D95
National Standards of People's Republic of China
Mine Safety requirements for screening equipment
Issued on. 2010-12-01
2011-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Chapter 3 of this standard are recommended, the rest are mandatory.
The standard proposed by China Machinery Industry Federation.
This standard by the National Mining Machinery Standardization Technical Committee (SAC/TC88) centralized.
This standard was drafted. Anshan Heavy Duty Mining Machinery Co., Ltd., Luoyang Mining Machinery Engineering Design Institute Co., Ltd.,
Zhejiang Mine Machinery Co., Ltd.
The main drafters of this standard. Liu Chunyu, Huang Jialin, Daisu Jiang, Yang column, now Li Yang, Wang Guizhen, Guo Ming.
This standard is the first release.
Mine Safety requirements for screening equipment
1 Scope
This standard specifies the list of dangerous mining screening equipment, safety requirements and/or measures and their determination to use the information.
This standard is to limit the physical properties and intended use of the terms of the proposed mining screening equipment. Safety requirements specified in this standard apply
In GB/T in 5.3a danger during the life of the machine described in the various stages produced 15706.1-2007).
This standard does not relate to the hazard and GB/T 15706.1 and GB/T 15706.2 consistent. About general mechanical, electrical, hydraulic,
Pneumatic and other dangerous devices are not included in this standard.
This standard applies to mining screening equipment. It includes a vibrating screen, grate and rotary screen (hereinafter referred to as screening equipment)
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB 2894 Safety Signs and use guidelines
GB/T 3766 Hydraulic System General technical conditions (GB/T 3766-2001, eqvISO 4413.1998)
GB 3836.1 Electrical apparatus for explosive gas atmospheres - Part 1. General requirements (GB 3836.1-2000, eqvIEC 60079-0.
1998)
GB 4053.1 fixed ladders and platforms - Safety requirements - Part 1. Steel ladders
GB 4053.2 fixed ladders and platforms - Safety requirements - Part 2. Steel LADDER
GB 4053.3 fixed ladders and platforms - Safety requirements - Part 3. Industrial guardrails and steel platform
GB 4351.1 Portable fire extinguishers - Part 1. Performance and structural requirements
GB 5226.1 mechanical and electrical safety of machinery - Electrical equipment - Part 1. General requirements (GB 5226.1-2008,
IEC 60204-1.2005, IDT)
GB/T 5748 Workplace air dust measurement method
GB/T 7932 General technical conditions of pneumatic systems
GB/T 8196 mechanical safety devices fixed and movable guards General requirements for the design and manufacture
(GB/T 8196-2003, ISO 14120.2002, MOD)
GB/T 9969 General Instructions industrial products
GB/T 13306 signs
GB/T 13325 basic norms noise machinery and equipment operator position radiation noise measurement (engineering grade)
GB/T 15706.1-2007 Safety of machinery - Basic concepts, general principles for design - Part 1. Basic terminology, methodology (ISO 12100-1.
2003, IDT)
GB/T 15706.2 Safety of machinery - Basic concepts, general principles for design - Part 2. Technical principles (GB/T 15706.2-2007,
ISO 12100-2.2003, IDT)
GB 16754 Safety of machinery - Emergency stop design principles (GB 16754-2008, ISO 13850.2006, IDT)
GB/T 16855.1 machinery safety control system relating to safety components - Part 1. General principles for design (GB/T 16855.1-
2008, ISO 13849-1.2006, IDT)
GB/T 17300 moving machinery passage means (GB/T 17300-1998, idtISO 2867.1994)
GB 17888.2 Safety of machinery stationary facilities - Part 2. Working platforms and gangways (GB 17888.2-2008,
ISO 14122-2.2001, IDT)
GB 17888.3 Safety of machinery stationary facilities - Part 3. Stairs, steps and guardrails (GB 17888.3-
2008, ISO 14122-3.2001, IDT)
GB 18152 Safety regulations beneficiation
GB/T 19886 Acoustics acoustic enclosures and noise insulation between Control Guide (GB/T 19886-2005, ISO 15667.2000, IDT)
3 Danger List
Screening equipment lifetime risk that may arise in the construction, transportation, installation, use, maintenance and removal process are shown in Table 1.
Table 1
No. dangerous
1 squeeze
2 wound or involvement
3 Impact
4 friction abrasions
5 high pressure, high temperature or corrosive liquid jet
Projectiles and material discharge 6
7 person slips, trips, falls or falling off a ladder or platform
8 shock
9 static phenomenon
10 and the high temperature of the surface contact and heat radiation
Or scald burns caused by hot material 11
12 working environment too hot or too cold
13 noise hazard
14 contact or inhalation of harmful fluids, gases, mists, fumes and dust
15 fire or explosion
16 Operating position without ergonomic
17 Personal Protective inappropriate
18 poor lighting
19 misuse
20 energy supply failure
21 control system failure, malfunction
22 hydraulic, pneumatic lines and cable rupture
23 moving parts protection device failure
24 emergency stop or safety device failure
25 security and alarm signal is missing or insufficient
26 missing basic equipment and accessories for regulating safety and maintenance
Note. The above danger not occur simultaneously on the same kind of screening equipment.
4 Safety requirements and/or measures and their determination
4.1 General Requirements
4.1.1 The intended use of screening equipment safety measures should be consistent with GB/T 15706.1 and the relevant requirements of GB 18152.
4.1.2 If the cold, dangerous hot surface contact, should be equipped with protective devices.
4.1.3 tubes, hoses and fittings shall withstand. Hose working pressure should be marked. To prevent the tube or hose burst, in the vicinity of the operating position
Hoses or pipes should be installed shield.
4.1.4 might close screening equipment mechanical part should not be friction abrasions or "scraping hook", the sharp edges, corners and protruding parts
The design should be consistent with the provisions of GB/T 15706.2 of.
4.1.5 screening around the unit should allow sufficient space for operation and maintenance.
4.1.6 screening equipment shall be ergonomically designed to enable operators to reduce labor intensity, to avoid fatigue.
4.1.7 To protect the safety of personnel, the operator should wear protective work gloves, wear safety shoes with other protective equipment.
4.1.8 shaker vibration during starting and stopping large, to avoid hydraulic hose connected to the vibration source and non-point vibration between fixed or soft power
Cable pull off or kink rupture, its installation length should allow sufficient margin.
4.2 Non-electrical hazardous area
4.2.1 vibrating screen at startup and shutdown can lead to compression and impact, people should stay away from the shaker at least 1m. Importers should be located on the platform
Li "caution" warning flags that should meet the requirements of GB 2894. Between the hopper and other non-vibrating shaker body should have at least
50mm distance.
4.2.2 rotary screen fence shall be established, to avoid entanglement injury.
4.2.3 screening equipment installed at the top of the overall project structure, in order to avoid slipping, falling, should set the platform fence in place
Bars and stairs.
4.3 Material and/or parts of the projectile
4.3.1 screening equipment side guard height should be properly designed, installed, or shield in the upper part of the screen box, in order to prevent the material shot out of the screen box.
4.3.2 In order to prevent the occurrence of parts or exit wound accident, the outer rotor and transmission components and screening equipment to be provided protection.
4.4 machine and foundation stability
To avoid equipment vibration on the basis of the harm, the natural frequency of the foundation should be greater than the operating frequency of 10 times.
4.5 Security guards
4.5.1 In order to avoid personnel within reach harm, danger zone should be set protection. Protective device shall comply with GB/T 15706.2
And GB/T 8196 requirements.
4.5.2 Working platforms and gangways shall comply with the safety requirements of GB 17888.2.
4.5.3 stairs, ladder and guardrail safety requirements should be consistent with GB 17888.3 requirements.
Fixed steel ladders 4.5.4 screening equipment shall comply with the provisions of GB 4053.1.
4.5.5 screening equipment fixed steel inclined ladders shall comply with the provisions of GB 4053.2.
Platform guard rails 4.5.6 screening equipment shall comply with the provisions of GB 4053.3.
4.6 control system and its means
4.6.1 Security screening equipment control system section shall comply with GB/T 16855.1 and GB/T 7932's.
4.6.2 Where a power-driven screening equipment should be set total stop switches, each operating position should have an emergency stop device to prevent incidents caused
Danger.
4.6.3 power supply interruption or interrupt again, can only be restarted by manual operation; when the power supply is faulty or hydraulic, pneumatic
When the system pressure drops, shall be protected to avoid danger. Protection devices and protective measures should be reliable and effective.
4.6.4 system when an emergency occurs, the alarm system should be able to automatically send an alarm signal. Alarm signal must be easy to place and receive, and
And the corresponding interlock safety device.
4.6.5 Operating screening equipment control devices should be safe, fast, reliable, and its design configuration and signs should be consistent with GB/T 15706.2 Regulation
set. The main control device should be arranged in the comfort zone operated auxiliary control device may be arranged in the manipulation of their reach or dangerous Fan
Other locations around the outside.
4.6.6 Control System should be the appropriate emergency stops and safety devices, emergency stop devices and signs shall comply with the provisions of GB 16754.
4.6.7 All emergency stop functions and safety devices which should be checked regularly.
4.7 Electrical Equipment
4.7.1 Electrical equipment screening equipment used should be a reliable ground fault protection device, the electrical equipment should meet the safety performance
GB 5226.1 relevant requirements.
4.7.2 for flammable, electrical equipment screening equipment used in potentially explosive atmospheres shall comply with the relevant requirements of GB 3836.1.
4.7.3 transformer or high voltage cable fence or four weeks should be set between arranged in isolation, and set the appropriate safety signs. Safety signs should meet
The combined provisions of GB 2894.
4.8 hydraulic, lubrication system
4.8.1 hydraulic system should be consistent with GB T 15706.2 and GB/T requirements/3766's. Piping system pressure should not exceed the maximum allowable pressure
Force, pressure drop and liquid leakage should not be dangerous. System should be equipped with temperature and pressure monitoring devices, and sound an alarm when you exceed the allowable range
Advertisements.
4.8.2 hydraulic hoses should be preformed. Hydraulic hoses and wires should be isolated, and avoid hot surfaces and sharp edges. Mobile hydraulic soft
Tube should be equipped with guide means.
4.8.3 hydraulic tank level indicator should be filled with the oil tank should not overflow. Hydraulic components and joints should not be leaking.
4.8.4 hydraulic, lubrication system should be installed in a suitable secure location, and spaced from the host to prevent the tube or hose burst injury to the user or
Fire.
4.9 Fire and Explosion
4.9.1 screening equipment for use in flammable and explosive environment, the electrical equipment should meet the requirements of 4.7.2.
4.9.2 operating room screening equipment should be made of fireproof materials decorative materials should not release toxic gases when burned, flame-retardant materials.
4.9.3 sieving device may produce a fire or explosion site, the manufacturer in the instructions for use should be warned.
4.9.4 Screening equipment designated duty stations should be placed portable fire extinguisher.
4.9.5 Portable fire extinguishers shall comply with the requirements of GB 4351.1. Portable fire extinguishers should not be placed near high temperature or power, should be placed
Set in a convenient operator access areas, should take place when the need for any tools.
4.10 Noise
4.10.1 screening equipment with a low noise material and parts manufacturing to minimize noise.
4.10.2 screening equipment when working in harsh noise environments, the operating room should be set to protect the operator from noise damage. Operating room
Within the noise should not exceed 85dB (A), according to the provisions of GB/T 13325 testing. Operating room noise control measures should be consistent with GB/T 19886
Provisions.
4.11 Radiation
To avoid heat radiation or hot projectile material injury to the operator, for high temperature materials screening equipment should be set to guard the safety of personnel.
4.12 dust, gas, steam and smoke dissemination
4.12.1 To help avoid inhalation of harmful gases, fumes and dust, exposure to dust, harmful gases, vapors and smoke screens and other harsh environments
Separation plant should be set up protective cover and dust, air purification devices.
4.12.2 Operating room screening equipment shall be equipped with an air purification device, operating room dust concentration should not exceed 2mg/m3, dust measurement side
Law should be consistent with GB/T 5748 regulations.
4.13 Lighting
4.13.1 screening equipment work site should be lighting. Lighting should be white.
4.13.2 screening equipment should be light and spacious ambient lighting conditions, illuminance its operating position and maintenance point of not less than 100lx, the rest position of photo
Of not less than 30lx.
4.14 operating position
4.14.1 operating position should be able to prevent dangerous projectile material generated to feed, discharge and other processes should take the necessary protective measures.
4.14.2 Operation rightful place convenient access and good visibility, ensure staff do not pose a danger.
4.14.3 There should be close to the operating position of flammable and explosive materials.
Operating room door opened 4.14.4 directions should enable the operator in the event of danger quickly leave the operating room.
4.14.5 screening equipment into the operating position and a maintenance channel should be smooth and convenient channel should be designed in line with GB/T 17300 of
Provisions.
4.15 warning device
4.15.1 screening equipment warning devices must be clear and accurate warning signal, the operator should regularly check all of the warning device.
4.15.2 When there is imminent danger, warning devices should be able to automatically send an alarm signal to personnel within the operation range.
4.16 installation, operation, maintenance and removal
4.16.1 screening equipment shall be installed using manual installation method to specify the basis of a predetermined load to bear and lifting conditions, avoid
Resonance and foundation occur.
4.16.2 clogging occurs mesh emergence of non-foreseeable or mechanical failure need to be excluded in operation, should an emergency stop and lock the start switch.
Troubleshooting completed no confirmation before restarting after the danger zone. Do not allow maintenance equipment in working condition.
4.16.3 shaker should be pressed without overload due to vibration first stop pressing the V-belt use special equipment for processing.
4.16.4 Removing screening equipment should be powered off first and then remove the power source to prevent misuse damage.
5 Use Information
5.1 Signage
Each screening equipment should be fixed at the appropriate signs and obvious location. Signs shall comply with GB/T 13306, and at least
It includes the following main elements.
--- Manufacturer's name and address;
--- Model and Name;
---The main technical parameters;
--- Number and date of manufacture.
5.2 Description
Description 5.2.1 screening equipment control section shall be clear and unambiguous.
5.2.2 a potential danger, you must set up warning signs. Warning signs should be consistent with the requirements of GB 2894.
5.3 Maintenance
Adjust screening equipment, maintenance, lubrication, cleaning and repair work should be carried out at the time of shutdown. If the above does not work in stop mode,
It must be carried out according to the requirements of 5.4.5.
5.4 User's Guide
5.4.1 screening equipment to the operating instructions should be consistent with GB/T 15706.2 and GB/T 9969 requirements.
Instructions cover or first page shall be given the following information.
--- Instructions title;
--- Device model;
--- Manufacturers, sales companies and agents name and mailing address.
Each screening device's instruction manual should include the following.
--- Operating Guide;
--- Maintenance Guide;
--- Consumables table;
--- Transportation and installation instructions.
Instructions should be the official language for the first time to use the device of the country, its language should be suitable for the operator to read.
Safety Information 5.4.2 Operation Guide screening equipment should be passed to the operator, all the important details about the safe operation of equipment should
included.
Operating instructions should be at least about the proper use of screening equipment, the following information and instructions.
--- Shown signs content;
--- Entrust repairs, maintaining the company's name and mailing address;
--- Detailed description of the intended use of screening equipment;
--- Full Description screening equipment operation;
--- Show using the program, indicating foreseeable misuse;
--- Before each job, the function of emergency stop devices and protective devices are carried out the necessary checks;
--- Using labeled interpretation;
--- Parts and the whole general view;
--- Desired symbol, schematic, examples of illustrations. These figures should be of sufficient size, clearly shows the main components of the model, power
Energy, position and relationship with the entire screening equipment;
--- May cause injury to the operator or other specialized behavior prior warning;
--- Forbidden area description;
--- Protection systems are in danger of ignoring instructions that may arise;
--- Screening transportation, installation, dismantling, security components and auxiliary equipment institutions;
--- Placement and use of fire extinguishers;
--- Screening equipment designed for an ambient temperature;
Noise and test methods --- operating position.
5.4.3 Operation Guide should also be given by way of striking the prevention of danger following warning message.
--- The operator must clearly know where the danger, he should take measures to safely resolve in the work process;
--- Icon screening equipment during the operation in hazardous areas;
--- Related to emergency stop devices and guards installed and functional description;
Special instructions --- Warning for high temperature or under cold environmental screening equipment;
--- Corrosive or hazardous materials with special safety warnings and screening equipment;
--- The operator must undergo practical training, especially the safety measures mentioned above focus on the content;
--- Screening equipment parts installation and removal instructions.
5.4.4 In addition to the Operating Guide content, maintenance guidelines shall include the following.
--- Commissioned repairs, maintaining the company's name and mailing address;
--- Screening equipment and components maintenance period;
--- Hydraulic fluid transmission device classification described in detail;
--- Difficult heavy components and installation instructions for manual operation member;
--- Fault diagnosis/detection device measuring point or installation location instructions to apply the diagram clearly shows;
--- Electrical, hydraulic Symbol/function icon. Model Figure should be of sufficient size, clearly show the main components, functions, installation position
Set relationship with overall screening equipment;
Inspection and replacement of wearing parts --- a description;
--- Possible so that maintenance personnel or other personal injury actions and warning of fire or explosion site.
5.4.5 Maintenance Guide should also be given by way of striking the prevention of danger following warning message.
If the operator must carry out maintenance work in the danger zone, it must be carried out under the following conditions.
--- There are two pairs of safety regulations must be fully familiar with the person, a human being by another human security monitoring;
--- Monitoring personnel can be reached from all aspects of the emergency stop devices;
--- Maintenance area should have appropriate lighting;
Use a reliable way dialogue between those who monitor --- and maintenance work;
--- Only when screening equipment is shut down completely, others can not touch the start switch, and hang warning signs allowed
A person alone maintenance of the equipment.
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