ISO/TC 244 - Industrial furnaces and associated processing equipment

This document applies for new steel converter and its associated equipment (hereinafter referred to as converter plant) used in the process of carbon or stainless steel making as defined in 3.1 and illustrated in Annex B. This document deals with significant hazards, hazardous situations and events relevant to the converter plant. It covers the intended use and foreseeable misuse. This document specifies the safety requirements to be met during design, pre-assembly, transport, site-assembly, commissioning, operation, maintenance (as described in Clause 5) and decommissioning/dis­assembly of the equipment. Assembly does not include erection because national regulations, e.g. national civil engineering laws and regulations or occupational health and safety regulations contain such information. This document applies to: Steel converter and its associated equipment (see Annex B, Figure B.1 for the oxygen steelmaking process —   from charging hot metal/liquid steel and scrap; —   via oxygen refining and stirring; —   temperature measurement and sampling equipment; —   up to tapping including slag retaining device; —   cooling systems; —   maintenance devices (e.g. relining device, tap hole repair device, device for cleaning the converter mouth); —   process related interfaces/interactions (e.g. according to design, controls) to —   process media, —   primary and secondary gas cleaning plant, —   material feeding systems and ladle alloying systems, —   transfer cars for steel ladle and slag pot, and —   charging/tapping equipment, e.g. crane, scrap chute, ladles and slag pots. This document does not cover safety requirements for: —   usage of process media other than oxygen, nitrogen, argon and compressed air; —   primary and secondary gas cleaning plants; —   measuring devices with radioactive sources; —   material feeding systems and ladle alloying systems; —   transfer cars for steel ladle and slag pot; —   charging/tapping and de-slagging equipment, e.g. crane, scrap chutes, ladles and slag pots; —   auxiliary winches and hoists. For variations of converter process where other gases and process media, e.g. hydrocarbons, fuels, steam, etc. are used, additional safety measures shall be considered which are not covered in this safety standard. NOTE     In case of revamping, this document can be used as a guideline for the specific parts to be revamped. This document is not applicable to steel converter and associated equipment manufactured before the date of its publication.

ISO 13578:2017 specifies the general safety requirements for electric arc furnaces (EAF) to melt steel not containing radioactive material. NOTE Radioactive material is considered to be detected in front of the steel plant entrance. ISO 13578:2017 deals with significant hazards, hazardous situations and events as listed in Table 1 pertinent to EAF, when used as intended and under conditions foreseen by the manufacturer, and also includes foreseeable faults and malfunctions in case of misuse. ISO 13578:2017 also specifies criteria for the plant and equipment integrated in the production process. ISO 13578:2017 specifies the requirements to be followed during design to ensure the safety of persons, which are to be met during transport, assembly, commissioning, operation, maintenance and decommissioning of the equipment. ISO 13578:2017 assumes that installations are operated and maintained by adequately trained personnel. Manual intervention for setting, adjustment and maintenance is accepted as part of the normal use of the equipment. ISO 13578:2017 covers the following equipment (see Annex B, Tables B.1 and B.2, and Annex C, Figures C.1 and C.2): - EAF with alternating current (AC) technology; - EAF with direct current (DC) technology; - scrap preheating technology; - associated equipment/devices (e.g. inert gas stirring, carbon and oxygen injection systems). The following equipment is not covered by ISO 13578:2017: - induction furnace; - resistance-arc furnace (e.g. submerged arc furnace); - electron beam furnace; - plasma furnace; - other electrical furnaces used in secondary steelmaking, e.g. ladle furnace. ISO 13578:2017 does not specify safety requirements for the following equipment, which can be an integral or complementary part of the equipment covered by the scope: - cranes; - shell lifting cross beam; - scrap basket, steel ladle and slag pot; - transport cars for scrap baskets, steel ladles and slag pots; - dedusting system; - "dog house" and "elephant house" (furnace enclosures for environmental reasons); - alloying system; - separate scrap drying equipment; - furnace transformer and high-voltage system; - robots/manipulators (e.g. for temperature measurement and sampling).

ISO 13579-11:2017 specifies classifications and designations in the methodology of energy efficiency evaluation of industrial furnaces and associated processing equipment (TPE), including energy efficiency in terms of exergy as well as enthalpy. ISO 13579-11:2017does not apply to the following types of TPE: - blast furnaces, basic oxygen furnaces, coke ovens; - furnaces that generate gases to be used as fuel (including by-product gases); - special atmosphere gas generators; - industrial furnaces that are designed for chemical plants or petroleum plants; - installations where heating or combustion is performed in an open space; - installations that combust solid fuel; - waste incinerators.

ISO 13577-3:2016 specifies safety requirements for generation and use of protective and reactive atmosphere gases that are part of industrial thermo-processing equipment (TPE). NOTE The general safety requirements common to TPE are provided in ISO 13577‑1 (see Introduction). ISO 13577-3:2016 deals with significant hazards, hazardous situations and events relevant to the generation and use of protective and reactive atmosphere gases created by thermochemical reactions and their use in TPE that are part of TPE as listed in Clause 4 and Clause 5, when used as intended and under the conditions foreseen by the manufacturer. It covers - pipework downstream of and including the manual isolating valve, - equipment for the generation of atmosphere gases, - additional equipment for the use of atmosphere gases in TPE, - safety devices, and - functional requirements for safety related control system for the generation and use of protective and reactive atmosphere gases. It applies to the supply of atmosphere gas, source gas, inert gas and process liquids to TPE and their removal from TPE, confined to equipment integrated in the TPE. ISO 13577-3:2016 also details the anticipated significant hazards associated with atmosphere gas systems and their use in TPE and specifies the appropriate preventative measures for the reduction or elimination of these hazards. The pressure hazard of the piping and components covered by this standard is within the maximum pressure/size relationship of group I as described in Annex C. It - specifies the requirements to be met to ensure the safety of persons and property during installation, commissioning, start up, operation, shutdown and maintenance, - does not cover the relevant risks involved in the flue gas ducting system when it is not considered a part of TPE, - is not applicable to utility supply upstream of the TPE main disconnects, - does not apply to TPE for semi-conductor devices, - does not apply to TPE with atmosphere, such as air and flue gas from an over stoichiometric combustion, - does not cover the decommissioning of the TPE, - does not cover vacuum furnaces, - does not deal with the hazard of noise which is covered in ISO 13577‑1, - is not applicable to generation and use of atmosphere gas in TPE and associated plant which is manufactured before the date of its publication, and - gives the necessary requirements for the information for use. A TPE designed according to ISO 13577-3:2016 does not create any potentially explosive atmosphere in the area around the TPE and is not designed to be located in an area with a potentially explosive or hazardous atmosphere. A table of typical protective and reactive gases is given in Annex B.

ISO 13577-1:2016 the general safety requirements common to industrial furnaces and associated processing equipment (TPE). ISO 13577-1:2016 deals with the significant hazards, hazardous situations or hazardous events relevant to TPE, as listed in Annex A, when TPE is used as intended and also under conditions of misuse that are reasonably foreseeable by the manufacturer. Annex B provides a list of common industrial furnaces and associated processing equipment. This document specifies the requirements intended to be met by the manufacturer to ensure the safety of persons and property during commissioning, start-up, operation, shut-down, maintenance periods and dismantling, as well as in the event of foreseeable faults or malfunctions that can occur in the equipment. These general safety requirements apply to all TPE, unless an exception is given in other parts of ISO 13577 dealing with specific equipment. The provisions of other parts of ISO 13577 that directly apply to specific types of TPE take precedence over the provisions of this document. ISO 13577-1:2016 is not applicable to blast furnaces, converters (in steel plants), boilers or equipment not covered under ISO 12100.

ISO 13574:2015 establishes the vocabulary for all industrial furnaces and associated processing equipment (TPE). It provides terms and definitions which are intended to be applied to the following documents: - ISO 13577 (all parts); - ISO 13579 (all parts).

ISO 13577-2:2014 specifies the safety requirements for combustion and fuel handling systems that are part of industrial furnaces and associated processing equipment (TPE). It deals with significant hazards, hazardous situations and events relevant to combustion and fuel handling systems, when used as intended and under the conditions foreseen by the manufacturer. ISO 13577-2:2014 covers: fuel pipework downstream of and including the manual isolating valve; combustion air supply (including oxygen and oxygen enriched combustion air) and flue gas system; burner(s), burner system and ignition device; functional requirements for safety related control system. It applies to any oxidation with air or other gases containing free oxygen of gaseous and liquid fuels or any combustion of them to release thermal energy in TPE. For thermal or catalytic post combustion and waste incineration, ISO 13577-2:2014 applies only to auxiliary burners designed to start-up and/or support the process. ISO 13577-2:2014 also gives the necessary requirements regarding information for use.

ISO 13577-4:2014 specifies the requirements for protective systems used in industrial furnaces and associated processing equipment (TPE). The functional requirements to which the protective systems apply are specified in the other parts of ISO 13577.

ISO 13579-4:2013 specifies general methodology for measuring energy balance and calculating the efficiency of the process involving furnaces with protective or reactive atmosphere as designed by the furnace manufacturers. This general methodology includes measurement methods, calculations (general calculation), and evaluation report. part of ISO 13579-4:2013 is not applicable to any efficiencies related to the process itself outside of furnaces with protective or reactive atmosphere.

ISO 13579-3:2013 specifies general methodology for measuring energy balance and calculating the efficiency of the process involving batch-type aluminium melting furnaces as designed by furnace manufacturers. This general methodology includes measurement methods, calculations (general calculation) and energy balance and efficiency calculation evaluation report. ISO 13579-3:2013 is not applicable to any efficiencies related to the process itself outside of batch-type aluminium melting furnaces.

ISO 13579-1:2013 specifies a general methodology for measuring energy balance and calculating the efficiency of the process involving industrial furnaces and associated processing equipment as designed by furnace manufacturers. This general methodology includes measurement methods, calculations (general calculation) and an energy balance evaluation report. ISO 13579-1:2013 is not applicable to any efficiencies related to the process itself outside of industrial furnaces and associated processing equipment.

ISO 13579-2:2013 specifies a general methodology for measuring energy balance and calculating the efficiency of the process involving reheating furnaces for steel as designed by furnace manufacturers. This general methodology includes measurement methods, calculations (general calculation) and energy balance and efficiency calculation evaluation report. ISO 13579-2:2013 is not applicable to any efficiencies related to the process itself outside of reheating furnaces for steel.

ISO 13577-1:2012 specifies the general safety requirements common to industrial furnaces and associated processing equipment (TPE). It details significant hazards associated with TPE, and specifies the appropriate preventive measures for reduction or elimination of these hazards. ISO 13577-1:2012 gives general principles and general safety requirements for the reduction of risks associated with TPE. It is not applicable to the risks associated with quenching, vacuums, salt baths, liquid phase treatment and protective or reactive atmospheres. ISO 13577-1:2012 specifies the safety requirements at stages in the life of the equipment, and its design, ordering, construction, use and disposal. It specifies safety requirements for maintenance, provision for indicators and inspection. It deals with the significant hazards, hazardous situations or hazardous events relevant to the equipment, when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer: