GB 25519-2010Feeders for mineral processing - Safety requirements (English PDF)

4.1 General Requirements

4.1.1 Security measures for feeding equipment intended to be used should be consistent with the relevant requirements of GB/T 15706.1 of.

4.1.2 feeding equipment shall be ergonomically designed, so as to reduce labor intensity, to avoid operator fatigue. The operator should work Required to wear safety equipment and other personal protective equipment.

4.1.3 If the hot and cold surfaces in contact with danger, these surfaces should be equipped with guardrails or covers. Sharp edges, corners and protruding parts of the design should meet Co GB/T 15706.2 requirements.

4.1.4 tubes, hoses and fittings shall withstand. Hose working pressure should be marked. Hose or tube near the operating position when necessary security Mounted shields, tube or hose burst avoid injury to the user.

4.1.5 into the operation and maintenance of the position of the channel device shall comply with GB/T 17300 of. Such as. doors, windows, the entrance can be opened or closed freely Closed in the "on" and "off" state should be safe.

4.1.6 to around feeding equipment should allow sufficient space for operation and maintenance.

4.1.7 In exceptional cold temperature environment, the operator shall be protected.

4.2 Operating location requirements

4.2.1 feeding equipment exposed to dust, noise or harsh environments, the operating room should be set to protect the operator. Operating room environment Staff did not respond to the danger.

4.2.2 operating position should be able to prevent dangerous projectile material produced for feeding, discharging and transportation and other processes should take the necessary protective measures.

4.2.3 operating position should be quick and easy access and good visibility, ensure staff do not pose a danger.

4.2.4 operating room door opening direction should enable the operator in the event of danger quickly leave the operating room.

4.2.5 main operating room noise should not exceed 85dB (A), and should be GB/T 13325 for testing.

4.2.6 main operating room should take the necessary damping measures, the weighted root mean square acceleration correction value at their seats should not exceed 1.25m/s2, Vibration test reference GB/T 8419 method.

4.2.7 Main operating room should be equipped with an air purification device dust concentration should not exceed 2mg/m3. Dust concentration should be GB/T 5748 of Predetermined detection.

4.2.8 main operating room illumination shall meet the requirements of 4.12.2. Nearby

4.2.9 operating position should not have flammable, explosive materials, materials, operating room should meet the fire safety requirements of 4.13.1.

4.2.10 feeding equipment working platform guardrails should be installed to prevent people from dropping.

4.3 Control System Requirements

4.3.1 feeding equipment control system safety should be consistent GB/T 16855.1 requirements.

4.3.2 Each piece of equipment should be set to total stop switches, each operating position should have an emergency stop device to prevent the risk of emergencies caused.

4.3.3 power supply is interrupted or re-supply interruption, can only be restarted by manual operation; when the power supply failure or hydraulic, gas When actuation system pressure drops, shall be protected to avoid danger. Protection devices and protective measures should be reliable and effective.

4.3.4 system when an emergency occurs, the alarm system should automatically send an alarm signal. Alarm signal must be easy to place and receive, and And the corresponding interlock safety device.

4.4 The control device requirements

4.4.1 Operation of the control device should be safe, fast, reliable, and its design configuration and signs should be consistent with GB/T 15706.2 requirements. 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.

4.4.2 Feeding system should be a corresponding emergency stop and safety devices, emergency stop devices shall comply with the requirements of GB 16754.

4.4.3 All emergency stop functions and safety devices which should be checked periodically.

4.5 Protection requirements of moving parts

4.5.1 Design of feeding equipment to 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.

4.5.2 For personnel and can rotate and drive components within the range, in particular the rotating eccentric mass inertia vibrator should be configured shield. Anti Shields should be consistent with GB/T 8196 requirements. On a fully enclosed device shall be fitted with a self-locking device of the inspection hole.

4.5.3 Mobile channel running along the feeding equipment, when you run faster than 0.10m/s, in the operation should start warning device.

4.5.4 with observation windows and doors of the feeding apparatus to observe all the doors and windows should be a reliable anti-loose fasteners.

4.6 Ejecta protection requirements

4.6.1 to baffle and silo feeding equipment should be designed high enough to prevent material spills.

4.6.2 open feeding equipment should be protective measures to prevent materials or parts injection.

4.7 Stability requirements

4.7.1 to between feeding equipment parts should be securely connected, necessary measures should be taken to prevent loosening.

4.7.2 feeding equipment vibration natural frequency of the installed base of equipment operating frequency of not less than 10 times.

4.8 Requirements for electrical equipment

4.8.1 Electrical equipment feeding equipment to be used should be reliable grounding protection device. Electrical equipment should conform to the relevant to the GB 5226.1 begging. For flammable and explosive environment of electrical equipment should meet the requirements of GB 3836.1.

4.8.2 transformer or high voltage cable guard rails or four weeks should be set to be arranged in the isolation room, and set the appropriate safety signs. Safety Standards Chi should be consistent with the requirements of GB 2894.

4.9 Hydraulic, lubrication system requirements

4.9.1 hydraulic system should be consistent with GB/T 15706.2 requirements. Piping system pressure should not exceed the maximum allowable pressure, and pressure drop When fluid leakage should not be dangerous. System should be configured temperature or pressure monitoring devices, alarm when the temperature or pressure exceeds the allowable range.

4.9.2 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.

4.9.3 Fuel tank level indicator should, hydraulic components, joints should not be leaking.

4.9.4 hydraulic, lubrication system must be installed in an appropriate secure location (on fire, ventilation), which can be separated from the host.

4.10 Installation, operation, maintenance and repair requirements

4.10.1 feeding equipment shall use the site specification requirements with reliable lifting device.

4.10.2 run before feeding equipment shall ensure that the fence around the inlet fastening. The opening of the fastener application tool to open.

4.10.3 during startup, operation and shutdown process, people should stay away from the device, and set up warning signs prominently. Warning signs should be consistent Requirements of GB 2894.

4.10.4 passage to the material feeding equipment such as bulk materials are blocked, should the appropriate cleaning equipment and methods to ensure that operators in the device Do not close during operation for this device. If the operator must enter the device clean-clogging material, should ensure that the operator does not Fall into the connected device or chute.

4.10.5 electromagnetic vibrator should not be run at the core and the armature collision state; inertial vibrators should not dismantle the eccentric cover state run.

4.10.6 When the screw feeder for maintenance and cleaning and maintenance, the opening should be securely closed and should be opened using a tool.

4.10.7 undertaken before any maintenance work, should cut off the power supply and hang warning signs indicate personnel being repaired.

4.10.8 lubrication points should be clearly identified, easily accessible, people can not be dangerous.

4.10.9 Open the access door or cabinet into the machine maintenance, should stand or other precautions to prevent accidental shut down dangerous.

4.11 Platform, channel requirements

4.11.1 feeding equipment to the working platform should have a ladder and guardrail. Work platform and the work platform into the path should be consistent with GB 17888.2 The provisions of the ladder should be designed to meet the requirements of GB 4053.1 and GB 4053.2, the fence should be designed to meet the requirements of GB 4053.3.

4.11.2 access and working platforms should avoid accumulation of water, etc., and should have anti-slip.

4.11.3 access and working platform should meet the predetermined carrier and space requirements.

4.11.4 openings and an object collision, fall hazard areas shall protective equipment, and should be a warning sign.

4.12 Lighting requirements

4.12.1 feeding equipment should work site lighting. White lighting applications.

4.12.2 operating room illumination of not less than 100lx.

4.13 Fire protection requirements

4.13.1 feeding equipment to the operating room should be fire-resistant material. Operating room decorative materials should not release toxic gases when burning flame material.

4.13.2 likely to have fire and explosion dangerous equipment manufacturer in the instructions for use should be warned.

4.13.3 feeding equipment fixed workplace should be placed portable fire extinguisher. Portable fire extinguishers shall comply with the requirements of GB 4351.1. Portable fire extinguishers should not be placed near high temperature or power, it should be placed at a convenient operator access areas. Fire extinguishers should not take place Require any tools.

4.14 Warning device

4.14.1 warning device must be able to accurately and clearly a warning signal, the operator should regularly check all of the warning device.

4.14.2 When there is imminent danger, there must be an alarm signal warning device for personnel within the operation range.

5.2 Description

5.2.1 Description feed to the device control section should 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 To adjust the feeding 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 safely according to the requirements of 5.4.3.2.

5.4 User's Guide

5.4.1 Instructions shall comply 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 feeding device's instruction manual should include the following.

--- Product name, specifications and main technical parameters;

--- Main purpose and scope;

--- Suitable working conditions and environment;

--- System Description (mechanical transmission, hydraulic system, electrical control system, lubrication system and other systems);

--- Installation and debugging method;

--- Use and method of operation;

--- Maintenance Methods;

--- Common Faults and exclusion method;

--- Consumables table.

5.4.2 Instructions shall be the official language of the country of use station feeding equipment, the term should be suitable for the operator to read.