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GB 25520-2010: Mineral grinding and ultra-micro grinding equipment -- Safety requirements
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Mineral grinding and ultra-micro grinding equipment -- Safety requirements
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GB 25520-2010
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Basic data | Standard ID | GB 25520-2010 (GB25520-2010) | | Description (Translated English) | Mineral grinding and ultra-micro grinding equipment -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | D94 | | Classification of International Standard | 73.120 | | Word Count Estimation | 9,946 | | 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 8196; GB/T 8419; 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 | | 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 mineral grinding and ultrafine grinding equipment, dangerous list of safety requirements and/or measures, and determined that the use of information. This standard applies to mineral grinding and ultrafine grinding equipment, including ball mill, rod mill, tube mill, since the mill, ball mill, double inlet mill, vertical mill, MPS roller tray coal mill, bowl mill, pendulum Grinder, fan mill, vibration mill, centrifugal mill, column mill, mixing mill, mill, impact mill, jet mill and cyclone mill (hereinafter referred to as grinding equipment). | GB 25520-2010: Mineral grinding and ultra-micro grinding 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.
Mineral grinding and ultra-micro grinding equipment.Safety requirements
ICS 73.120
D94
National Standards of People's Republic of China
Mineral grinding and ultrafine grinding equipment safety requirements
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 is drafted by. Luoyang Mining Machinery Engineering Design & Research Institute Co., Ltd.
Participated in the drafting of this standard. CITIC Heavy Machinery Co., Ltd.
The main drafters of this standard. Guo Ming, Zou Yong, Li Yang, now, Zhang Sheng Qi, Huang Jialin, Wang Yadong.
This standard is the first release.
Mineral grinding and ultrafine grinding equipment safety requirements
1 Scope
This standard specifies the list of dangerous mineral grinding and ultrafine grinding equipment, safety requirements and/or measures and determination, usage information.
This standard is to limit the use of predetermined physical properties and mineral grinding and ultrafine grinding equipment proposed. Safety requirements specified
Applies to GB/T 15706.1-2007 in 5.3a) the risk of the various stages within the specified life of the machine produced.
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 mineral grinding and ultrafine grinding equipment, including a ball mill, rod mill, tube mill, since the mill, ball mill, bis
Double into the mill, vertical mill, MPS disc roller mill, bowl mill, Pendulum mill, fan mill, vibration mill, centrifugal mill,
Column mill, stirred mill, ultrafine mill, impact mill, jet mill and cyclone mill (hereinafter referred to as grinding 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 8196 mechanical safety devices fixed and movable guards design and manufacture of general requirements (GB/T 8196-
2003, ISO 14120.2002, MOD)
GB/T 8419 moving machinery - Seat vibration laboratory evaluation (GB/T 8419-2007, ISO 7096.2000, IDT)
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)
3 Danger List
Grinding equipment lifetime risk that may arise in the transportation, installation, use and maintenance of the process are shown in Table 1.
Table 1 Danger List
No. dangerous
1 winding or involvement
2 friction or wear
3 high-pressure liquid, gas injection
4 and falling projectile components, materials
5 sharp edges, angular member
6 shock
7 into contact with the surface temperature is too high
8 work environment too hot or too cold
9 noise hazard
10 vibration hazards
11 fire and explosion
12 operational position is not ergonomic
13 Personal Protective inappropriate
14 misuse
15 poor lighting
16 personnel slips, trips, falls or falling from the platform, ladder
17 energy supply failure
18 control system failure
19 hydraulic, pneumatic lines and cable rupture
20 moving parts without guard
21 overload protection, electrical protection device is missing
22 emergency stop device failure
23 security and alarm signal is missing
24 alarm signal is missing
Note. The above danger not occur simultaneously on the same kind of grinding equipment.
4 Safety requirements and/or measures and determination
4.1 General Requirements
4.1.1 grinding equipment intended use of security measures should be consistent with GB/T 15706.1 of the relevant requirements.
4.1.2 Grinding equipment shall be ergonomically designed to reduce labor intensity, to avoid operator fatigue. The operator work should take
Necessary protective measures.
4.1.3 sharp edges, corners and protruding parts shall be designed to comply with the provisions of GB/T 15706.2 of.
Dangerous contact with hot surfaces 4.1.4 If so, it should be installed fence or cover.
4.1.5 tubes, hoses and fittings shall withstand. Hoses shall be marked with the maximum operating pressure. When a hose or tube operating position close to the necessary
Shield should be installed to prevent the tube or hose burst injury to the user.
4.1.6 into the operation and maintenance of the position of the channel device shall comply with GB/T 17300 of.
4.1.7 around the grinding equipment should allow sufficient space for operation and maintenance.
4.1.8 Working under high temperature, cold environment, the operator shall be protected.
4.2 operating position
4.2.1 grinding equipment operation should be carried out at ambient no danger to personnel status.
4.2.2 operating position should be able to prevent the risk of falling materials produced for the feed, discharge, transportation and other process should take the necessary protective measures.
4.2.3 operating position should be convenient channel and visibility to ensure that staff do not pose a danger.
4.2.4 operating room door opening direction should enable the operator to quickly leave in the event of danger.
4.2.5 main operating room noise should not exceed 85dB (A), and should be GB/T 13325 for testing.
4.2.6 Weighted main operating room at the seat of the rms acceleration correction value should not exceed 1.25m/s2, vibration test reference GB/T 8419 of
Method.
4.2.7 operating room illumination should comply with 4.10.2.
4.2.8 There should be close to the operating position inflammable and explosive materials, materials, operating room shall meet the requirements of 4.11.1.
4.3 Control System
4.3.1 grinding equipment control system safety components shall comply with GB/T 16855.1 of.
4.3.2 power supply is interrupted or re-supply interruption, only to restart the manually operated; when power supply failures or hydraulic system
When the system pressure drops, shall be protected to avoid danger. Protection devices and protective measures should guarantee effective.
4.3.3 grinding equipment before starting, should sound alarm signal; grinding equipment shall set the alarm system when the risk of an emergency, the alarm signal
It should be able to make and receive timely.
4.3.4 Operation of the control device should be safe, fast, reliable, and its design configuration flag shall comply with GB/T 15706.2 of. Key
The control device should be arranged in the comfort zone operated auxiliary control device may be disposed within the outer range and can be manipulated or other hazardous area
position.
4.3.5 grinding system should have the appropriate safety and emergency stop devices, emergency stop devices shall comply with the provisions of GB 16754.
4.3.6 All emergency stop functions and safety devices which should be checked periodically.
4.4 Protection of moving parts
4.4.1 Design of grinding equipment moving parts, manufacturing and installation to avoid the risk of GB/T 15706.1 described that person as much as possible
Little manual operation in a hazardous area.
4.4.2 For personnel and can rotate and drive components within the scope of the protective devices should be configured. Protective device shall comply with GB/T 8196 of
Provisions.
4.5 Protection
4.5.1 Grinding equipment shall be equipped with monitoring interlock protection device.
4.5.2 grinding equipment motor should be equipped with short-circuit protection, overload protection and lack of protection of high-voltage motors, there should be a delay of a low voltage
protection.
4.6 Electrical Equipment
4.6.1 grinding equipment protective earthing of electrical equipment, insulation resistance, voltage test requirements should be consistent with the relevant provisions of GB 5226.1
set. Electrical equipment for explosive environments shall comply with the provisions of GB 3836.1.
4.6.2 main circuit voltage electrical equipment should be current meter indicator, and a voltage, short circuit, over current (overload), phase loss, leakage and ground
Protection and alarm indication.
4.7 hydraulic lubrication system
4.7.1 hydraulic system shall comply with GB/T 15706.2 and GB/T 3766, the system pressure should not exceed the maximum working pressure of the pipeline
Force, pressure drop and liquid leakage should not be dangerous. System should be configured temperature or pressure monitoring device, temperature or pressure exceeds license
Range alarm.
4.7.2 mill lubrication device should operate reliably, if equipped lubrication station, the pump motor and electrical interlocks should be the main motor, when Run
Slip fault system that should occur when a signal is not working properly, ensure that the main motor stop automatically, and should be provided with oil temperature, oil pressure, fuel pressure difference
Alarm signaling device; lubrication system should be equipped with safety valve, pressure gauge, a thermometer, and other safety devices.
4.7.3 hydraulic hoses should be preformed. Hoses and wires should be isolated, and avoid hot surfaces and sharp edges. Mobile hydraulic hose should
With guide means.
4.7.4 hydraulic tank level indicator should, hydraulic components, joints should not be leaking.
4.7.5 hydraulic, lubrication system should be installed in the fire and ventilation safety position, it can be separated from the host.
4.8 installation, operation, maintenance and repair
4.8.1 use of the site grinding equipment should have reliable lifting device.
Base 4.8.2 installed equipment shall be subjected to a predetermined load, and the surface smooth and easy device installation.
4.8.3 Drum mill side and the bush side, there should be protective railings. When the drum mill operation, the personnel should not be operated on both sides of the cylinder and the lower
Stay or work; and should always observe whether Manhole tight to prevent grinding media flying wounding. When the mill closed manholes should be recognized within the mill
Nobody, before closing.
4.8.4 maintenance, when replacing the drum mill liner, the cylinder should be fixed in advance, and make sure the body no shedding, full ventilation, suitable temperature
Should, before entering. Crane hook should not enter the body.
4.8.5 When the mill "bloating", should immediately stop feeding, and then press the "closed before the water, after water is added, the concentration of lower grade increase return sand" principle process.
4.8.6 When using a special steel bucket to increase the ball mill, ball infighting surface should be below the upper edge of the bucket; when electricity disk to increase the ball mill, the next sucker
It was not square; lifting the ball bag is not applied.
4.8.7 Adding rod mill grinding media, should be parking. When you add a machine using loading stick media, you should check in advance the various components mounted rod and the confirmation
In good condition before proceeding. Loading bar machine should hand operation, should work closely with the crane, by hand command.
4.8.8 Drum mill parking more than 8h repair or replace the liner is completed, in the absence of micro-tow facility, the application before lifting drive
Machine plate car, cranking rope should be checked in advance; do not allow the use of the main motor cranking.
4.8.9 to carry out before any maintenance work, should cut off the power supply, there should be a warning device, schematically personnel being repaired.
4.8.10 lubrication points should be clearly identified, easily accessible, people should not be dangerous.
4.8.11 Open the access door or cabinet into the machine maintenance, should stand or other precautions to prevent accidental shut down, resulting in danger.
Should be replaced after wear 4.8.12 grinding equipment inside wearing parts.
4.9 platform and channel
4.9.1 grinding equipment around the work platform should be set protective railings.
4.9.2 ladders, ramps ladders, railings and platform production, shall conform to GB 4053.1, GB 4053.2 and GB 4053.3 provisions of.
4.9.3 access and working platforms gather oil and water, there should be anti-skid measures should be avoided.
4.9.4 access and working platform should meet the expected bearer and space requirements.
4.9.5 Channel ports and an object collision, falling dangerous locations shall be provided eye-catching warning signs and protective facilities.
4.10 Lighting
4.10.1 grinding equipment work site should be lighting. Lighting should be white.
4.10.2 operating room illumination and maintenance point of not less than 100lx.
4.11 fire and explosion
Electrical control room and operating room 4.11.1 grinding equipment should be made of fireproof material.
Insulation equipment 4.11.2 mill pulverizing system, piping and from among the milling through the smoke duct, fuel oil and other pipelines, shall be used for fire prevention
material.
4.11.3 pulverizing system equipment, piping, etc., should not leak tight pink. Pulverized coal pipeline should not have accumulated powder dead and middle run
Sedimentary coal.
4.11.4 mill outlet gas temperature of the powder mixture should be allowed and the maximum temperature coal quality to adapt to meet the requirements of fire and explosion.
4.11.5 burning bituminous coal powder feeding hot air, hot air temperature should be the temperature of the gas powder mixture did not exceed 160 ℃.
4.11.6 Press inerting atmosphere designed fan mill, using two or three-media material drying system, limit gas powder mixture containing oxygen concentration
Degree, should meet the requirements of fire and explosion.
4.11.7 In addition to all of the fan pulverizing system burning anthracite coal pulverizing system, smoke flue gas drying by inerting the atmosphere and design of the design
Ability to withstand explosion have been considered positive pressure direct blowing pulverizing system, the blast doors should be installed. Disposed toward the blast doors should avoid action
When discharged explosives wounding or cables and oil pipelines fell nearby such as the above.
Pulverizing systems with intermediate storage 4.11.8, the mill housing should be able to withstand the force of the explosion 0.15MPa; Direct Blowing pulverizing system
EC, the mill housing should be able to withstand 0.3MPa explosive power.
4.11.9 grinding equipment workplaces should be placed fixed fire extinguishing system.
4.11.10 portable fire extinguishers shall comply with the provisions of GB 4351.1. Portable fire extinguishers should be placed in a convenient and easy to take place, not to take place
You shall require any tools.
4.12 warning device
4.12.1 at the right place or location, sound or light signals should be installed warning devices. The warning device shall be accurate, clear warning
Signal, the operator should regularly check all of the warning device.
4.12.2 When there is imminent danger, should be an alarm signal to the alarm device within the operating range of personnel.
5 Use Information
5.1 Signage
Each grinding equipment should be in the apparent position of the fixed signs. Type size of signs shall comply with GB/T 13306, and to
It shall include at least the following main elements.
--- Product type and name;
---The main technical parameters;
--- Date of manufacture and serial number;
--- Manufacturer's name and address.
5.2 Description
5.2.1 grinding equipment control section shall be clear and unambiguous.
5.2.2 a potential danger, should be a warning sign. Warning signs should comply with the provisions of GB 2894.
5.3 Maintenance
Adjust grinding 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,
5.4.3.2 should be required to safely conduct.
5.4 User's Guide
5.4.1 Instructions shall comply with GB/T 15706.2 and GB/T 9969's. Each grinding equipment's instruction manual should include
The following.
--- Alert, warning, safety;
--- Product name, size and technical specifications;
--- Main purpose and scope;
--- Suitable working conditions and environment;
--- Structure, properties and diagrams;
--- System Description (mechanical transmission, electrical system, hydraulic system, lubrication system and other systems);
--- Installation and debugging method;
--- Use and method of operation;
--- Maintenance and Service Guide;
--- Common Faults and exclusion method;
--- Wearing parts and accessories for details.
5.4.2 Instructions shall be grinding equipment using the official language of the country to prepare its terms should be suitable for the operator to read.
5.4.3 in the instructions for use should also be given prominently the following information on hazard prevention Warning
5.4.3.1 installation and operation of safety warnings
--- Should clearly tell the operator where there is danger, what measures should be taken to safely resolve in the work process;
--- Equipment normal startup conditions, the boot sequence;
--- Equipment normal shutdown condition, stop order;
--- Equipment installation and functions of emergency stop devices and guards instructions;
--- Operator should go through job practical training, security measures are one of the key training.
5.4.3.2 maintenance, maintenance operations in the security warning
If the operator must carry out maintenance work when the job or within the danger zone, you should be carried out under the following conditions.
--- Two pairs of safety regulations should be fully familiar with the person, a maintenance work performs another safety monitoring;
--- Monitor all aspects of staff can be reached to stop the device;
--- Maintenance area should have appropriate lighting;
Use a reliable way dialogue between those who monitor --- and maintenance work;
--- Only when the host is shut down completely, hang warning signs, prohibition when others hit the start switch only allows one person alone
Maintenance of the equipment.
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