Code for design on fire prevention of nonferrous metals engineering
1 General provisions
1.0.1 This code is formulated in view to preventing and minimizing fire hazards in nonferrous metals engineering and guaranteeing personal and property safety.
1.0.2 This code is applicable to the fire protection design of new construction, extension and renovation engineering in the nonferrous metal industry, but not applicable to the fire protection design for processing, storage and use of explosives or explosive material items in the nonferrous metals engineering.
1.0.3 The fire protection design of nonferrous metals engineering shall be combined with actual engineering conditions, and advanced technology, advanced process, advanced equipment and new materials shall be actively applied to achieve safety, applicability, advanced technology, economy and rationality.
1.0.4 In addition to this code, the fire protection design of the nonferrous metals engineering shall also meet the requirements of the current relevant standards of the State.
2 Terms
2.0.1 process type
summarization and classification by production process or production method of nonferrous metals, including mining, mineral processing, pyrometallurgy, hydrometallurgy, molten salt electrolysis, metal and alloy processing as well as roasting, refining, extraction, etc.
2.0.2 main workshop
plant building used to accommodate the main production process equipment and devices in a certain process type
2.0.3 general substation
facility and place used for power supply and distribution for the production of the whole plant or large area [among which the facility and place used for power supply and distribution of a certain workshop or community are called substation of workshop or community
2.0.4 service room of workshop
rooms for providing daily services such as changing clothes, bathing, management and toileting for workshop production staff
2.0.5 control room
special room equipped with automatic process adjustment and production optimization control devices, and the room for the adjustment and control room for main production line of process type (including branches) is called the main control room
2.0.6 corrosiveness area
various facilities, buildings (structures) and their related areas under the action of corrosive media
2.0.7 roadway and chamber
passage dug in ore and rock according to certain specifications for geological exploration, mining, ventilation and other purposes is called the roadway; and underground structures excavated in ore and rock for special purposes such as equipment placement or material storage are called the chamber
2.0.8 open building
buildings with external walls (including windows, daylighting bands, flashing boards, etc.) whose area is less than 50% of the total area of building envelope structure
3 Classification of fire hazards, fire resistance class and fire compartment
3.0.1 The design of the nonferrous metals engineering shall be combined with the characteristics and quantity of fire hazards arising from actual use, storage or production of media, as well as environmental conditions and other factors to determine the classification of fire hazards arising from production (storage) of media in their plant buildings (warehouses) or areas (locations), and shall meet the relevant requirements of the current national standard GB 50016 Code for design on building fire protection and prevention.
3.0.2 The fire resistance class of the non-ferrous metal plant buildings (warehouses) should not be less than Class II. The combustibility and fire resistance rating of the their members shall be in accordance with the current national standard GB 50016 Code for design on building fire protection and prevention.
3.0.3 The main load-bearing members of Categories D and E fire-resistant plant buildings (warehouses) may be of metal structure without fire protection. For the metal load-bearing members that may be directly affected by the flame of Categories A, B and C liquids or combustible gases, and may be radiated by heat, with the surface temperature greater than 200° C, fire protection and heat insulation measures shall be taken or the fire resistance of the structure shall be checked.
3.0.4 The fire resistance class of cable interlayer and underground or semi-underground electrical room, hydraulic station and lubricating oil station shall not be less than Class II. When the cable interlayer is of steel structure, the steel members shall be protected against fire, and shall meet the requirements of Class II fire resistance.
3.0.5 The open semi-underground equipment room (pit) set in Categories D and E plant buildings with Classes I and II fire resistance, may be in the same fire compartment as their above-ground plant buildings. When Category C oils are used or stored in the underground equipment room, effective fire separation measures shall be taken, and Categories A and B combustibles must not be stored.
3.0.6 For belt conveyor corridors connecting two fire compartments, other fire separation facilities shall be set up for local openings that are difficult to be closed by physical fire partitions, e.g., fire walls. Water curtain system, if used, shall meet relevant requirements of 7.5.3 in this code.
3.0.7 The maximum allowable building area of individual fire compartments in plant buildings (warehouses) shall meet relevant requirements of the current national standard GB 50016 Code for design on building fire protection and prevention. However, for Categories D and E nonferrous metal high-rise plant buildings with Classes I and II fire resistance for complete sets of devices such as smelting, roasting and heat recovery boilers, when there are specific requirements for the production process and the plant buildings cannot be subjected to fire separation, the maximum allowable building area of each fire compartment of the plant buildings may be increased by 1.0 times according to the relevant requirements of the current national standard GB 50016 Code for design on building fire protection and prevention.
3.0.8 The maximum allowable building area of each fire compartment of underground electrical room, hydraulic station and lubricating oil station shall not be greater than 500 m2. The maximum allowable building area of each fire compartment of cable interlayer shall meet the following requirements:
1 The above-ground area shall not be greater than 1200 m2;
2 The underground area shall not be greater than 300 m2;
3 When an automatic fire extinguishing system is provided, the maximum permissible building area of each fire compartment above may be doubled.
4 Basic fire protection requirements of production process
4.1 General requirement
Foreword ii
1 General provisions
2 Terms
3 Classification of fire hazards, fire resistance class and fire compartment
4 Basic fire protection requirements of production process
4.1 General requirement
4.2 Mining
4.3 Mineral processing
4.4 Stock yard
4.5 Pyrometallurgy
4.6 Hydrometallurgy
4.7 Molten salt electrolysis
4.8 Plastic working of nonferrous metal and alloy
4.9 Acid-making with off-gas
4.10 Fuel gas, combustion air facilities and fuel oil facilities
4.11 Pulverized coal preparation
4.12 Boil house and thermal power station
4.13 Other auxiliary facilities
5 Overall plan
5.1 General layout
5.2 Roads within plant area and fire-fighting truck travel
5.3 Pipeline laying
6 Emergency evacuation and building construction
6.1 Emergency evacuation
6.2 Building construction
6.3 Anti-explosion in plant buildings (warehouses)
7 Fire-fighting water supply, drainage and extinguishing facilities
7.1 General requirements
7.2 Outdoor fire water supply in plant area
7.3 Indoor fire water supply
7.4 Mine fire water supply
7.5 Establishment of automatic extinguishing system
7.6 Fire water pond, fire water tank and fire water pump house
7.7 Fire water drainage
8 Heating, ventilation, dust removal and air-conditioning
8.1 General requirements
8.2 Heating
8.3 Ventilation
8.4 Dust removal
8.5 Air-conditioning
9 Automatic fire alarm system
10 Power supply
10.1 Power supply and distribution for fire prevention
10.2 Power transformation (distribution) system
10.3 Cable and cable laying
10.4 Lightning and electrostatic prevention
10.5 Emergency lighting and evacuation indication sign for fire
Annex A Checking computation for fire resistant stability of steel columns near emergency pit of non-ferrous metal smelting furnace
Explanation of wording in this code
List of quoted standards
.
