ISO 23495:2021 工業炉および関連する処理装置—鋼製コンバーターおよび関連する装置の安全要件 | ページ 6

3.1

steel converter

tiltable unit for the production of carbon or stainless steel

Note 1 to entry: This tiltable unit is mainly consisting of a vessel with refractory lining, trunnion ring, vessel suspension system, tilting drive, etc.

3.2

associated equipment

additional equipment for the production of carbon steel or stainless steel by means of a steel converter (3.1)

Note 1 to entry: For associated equipment, e.g. lances, see Figure B.1.

3.3

refining

conversion of hot metal to carbon steel or stainless steel by elimination of (mainly) carbon (and other unwanted elements like silicon, phosphor) using oxygen supply

Note 1 to entry: Refining processes differ in oxygen supply from top, bottom or a combination of both; and optional gas stirring.

3.4

production process

all production-related activities between charging to tapping

3.5

maintenance devices

devices to maintain the converter

Note 1 to entry: Such devices are, e.g. relining device, tap hole repair device, clean-up device for converter mouth.

3.6

manual mode

every single function/movement will be individually triggered by the operator

3.7

special control modes

dedicated modes activated by a specific device, to carry out operations

Note 1 to entry: E.g. like skull removal or slag splashing.

3.8

maintenance

all activities carried out outside the production process (3.4)

3.8.1

inspection

basic checks (e.g. visual) of equipment

3.8.2

service

periodic exchange of lances, cleaning (e.g. lance, converter mouth), lubrication, adjustment of limit switches

3.8.3

repair

repair or exchange of damaged components accompanied with complete shutdown (i.e. isolation of energy)

3.8.4

relining

all activities from shut down of converter for relining up to end of pre-heating (including converter vessel exchange or parts of it, refractory breakout)

3.8.5

skull removal

special procedure for removing the skull inside the converter by using the blowing lance

3.9

ladle

vessel with refractory lining to collect, treat, transport and charge/discharge hot metal/steel

3.10

slag pot

vessel to collect, treat and transport slag

3.11

scrap chute

scrap charging container used to charge scrap into the converter

3.12

work stations

predefined locations for personnel used for production or maintenance

3.12.1

converter control room

main control room in which the control desk and monitoring facilities for a steel converter are located

Note 1 to entry: It is a location where operating personnel is required permanently during the production process.

3.12.2

local control stands

control units usually situated adjacent to the equipment

Note 1 to entry: It is a location where operating personnel is required temporarily during the production process, e.g. during charging or tapping.

3.12.3

portable control box

mobile control units connected to the control system, wired or wireless

Note 1 to entry: For example, to position equipment more precisely.

3.13

trained personnel

person with the knowledge of systems, background, experience and ability to operate and/or maintain the equipment in the intended use and proper operation of the machinery/equipment

3.14

authorized personnel

trained person who is instructed by the user to perform a specific task on a specific equipment

3.15

doghouse

enclosure around the converter vessel consisting of sidewalls, ceiling and movable doors (see 5.1.4.4)

Note 1 to entry: The primary purpose is to contain noise and dust during process and should protect the converter platform against steel or slag splashing.

3.16

skirt

movable water-cooled part of the gas cleaning system

Note 1 to entry: Located above the converter mouth.

3.17

protection platform

(re-)movable platform above the converter

Note 1 to entry: Protecting lower areas from falling material.

3.18

danger zone

any space within and/or around machinery in which a person can be exposed to a hazard

3.19

safety layout

graphical description of plant-related equipment with regard to safety

3.20

warning system

visible, audible warning devices or a combination of both

3.21

blowing lance

water cooled vertical lance used for blowing technical gases, mainly oxygen

3.22

sub-lance

water cooled vertical lance used for temperature measurement and sampling during production process

3.23

relining machinery/device

machine for manual or automatic installation of refractory lining inside the converter

Note 1 to entry: Associated lifting, lowering and travelling devices for material transport and access to the workplace are included.

3.24

fire-resistant hydraulic fluid