BS EN 1009-3:2020 pdf download.Machines for mechanical processing of minerals and similar solid materials – Safety Part 3: Specific requirements for crushing and milling machinery.
This document, to be used together with EN 1009-1:2020, specifies the safety requirements and their verification for the design and construction of crushing and milling machinery for the mechanical processing in quarrying, recycling and processing mineral and by-products. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
When requirements of this part of EN 1009 are different from those which are stated in EN 1009-1:2020, the requirements of this part of EN 1009 take precedence over the requirements of EN 1009-1:2020 for machines that have been designed and built according to the provisions of this part of EN 1009.
This document, together with EN 1009-1:2020, deals with all the significant hazards, hazardous situations and events relevant to crushing and milling machinery when they are used as intended and under the conditions foreseen by the manufacturer (see Annex C).
This document does not cover:
— design relating to road traffic regulations;
— hazards arising from the use of the machines in potentially explosive atmospheres as well as from processing of explosive materials and risks related to electromagnetic compatibility;
— specific hazards related to mobile machinery.
NOTE 1 EN ISO 13 766-1 and EN ISO 13766-2 speciI’ test methods and acceptance criteria for evaluating the electromagnetic compatibility of all kinds of mobile construction machinery.
NOTE 2 prEN 1009-6 “Specific requirements for mobile and semi mobile equipment is under preparation to cover specific requirements (e.g. mobility, braking, access, frequent transportation), including exceptions and additional requirements for mobile and semi mobile equipment. This means that mobile machines are not covered as long as EN 1009.6 is not published by CEN.
This document is not applicable to crushing and milling machinery which are manufactured before the date of publication of this document by CEN.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 795:2012, Personal fall protection equipment — Anchor devices
EN 1009-1:2020, Machines for mechanical processing of minerals and similar solid materials一Safety 一 Part 1: Common requirements for machinery and processing plants
EN Is0 12100:2010, Safety of machinery一General principles for design一Risk assessment and risk reduction (ISO 12100:2010)
EN ISO 14122-2:2016, Safety of machinery一Permanent means of access to machinery – – Part 2: Working platforms and walkways (ISO 14122-2:2016)
EN ISO 14122-3:2016, Safety of machinery – – Permanent means of access to machinery一Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2016)
ISO 2631-1:1997, Mechanical vibration and shock — Evaluation of human exposure to whole-body vibration — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 1009-1:2020 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://wwwiso.org/obp/ui
— IEC Electropedia: available at http://www.electropedia.org/ NOTE Annex A shows examples of crushing and milling machinery.
3.1 crusher
machine intended for reducing the size of mineral-based material to particles of smaller dimension starting from coarse size to millimetric size and which can be based on various crushing technology
3.2 mill
machine intended for reducing the size of minerals based material to particles of smaller dimensions starting from middle coarse size to micronic size, and which can be based on various grinding technologies
3.3 jaw crusher
compression crushing machine consisting of a fixed jaw and a movable jaw which moves so as to increase and decrease the gap between the two jaws
ISOURCE: ISO 11375:1998, 3.2.1]
3.4 gyratory crusher cone crusher
compression crushing machine consisting of a moving part rotated eccentrically within the fixed part; both moving and fixed parts are in a form of truncated cones
4.1.2 Maintenance
A safe means of access (e.g. permanent or temporary working platform) around the crusher is required to handle and remove the wear parts.
This access platform shall meet requirements of 4.1.3 to be used for process monitoring.
The minimum operating loads of temporary working platform shall be 1,5 kN/m2 under distributed load for the structure.
In case of adjustable temporary working platform fitted with a locking mechanism, it shall hold twice the minimum operating loads of temporary working platform.
If there is a risk of falling during maintenance operation, anchorage points shall be provided in accordance with tests of EN 795:2012.
For maintenance work in the crushing chamber, isolation and energy dissipation shall be provided for the crusher as well as for upstream and downstream sub-assemblies. See EN 1009-1:2020.4.10.1.
4.1.3 Process monitoring
When a clear view to crusher feeding area is required according to the instruction handbook of the manufacturer to ensure effective process, the following safety aspects need to be considered:
— if a permanent access platform is fitted, the inspection area shall comply with EN ISO 14122-2:2016 and be guarded to protect the operator from ejection of rocks and contact with the feeding area of the machine as well as falling hazards;
The permanent access platform may be same as the maintenance platform.
— remote monitoring such as CCTV system or an automatic material control system (e.g. level sensing and control) shall be provided when the feeding area is out of vision of the operator.
Means shall be provided to control the material feeding in order to stop the upstream material flow in case of a blockage (e.g. current control, speed control, level control). Purpose of this is to reduce overfilling and falling objects occurrences and to identify blockages in order to reduce necessity for interventions for clearing out machines. Appropriate instructions shall be included in the instruction handbook, see 6.3.
NOTE The control of the material feeding function is a process function, not a safety function.BS EN 1009-3 pad download.
BS EN 1009-3:2020 pdf download
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