BS/EN 1009-5-2020 pdf download.Machines for mechanical processing of minerals and similar solid materials – Safety Part 5: Specific requirements for cleaning, recycling, sorting and mud treatment machinery.
If an access door to this area is necessary for inspection, the access shall be controlled with an interlocking
guard with guard locking as specified in EN 1009-1:2020, 4.11.3, e.g. trapped key system according to
EN ISO 14119:2013, B.2.
The feed chute and the discharge chute arrangements shall be constructed in a way that prevents the user
from touching the materials through chutes or inspection doors in the chute arrangements. A temporary working platform shall be provided to give access inside the drum for lining maintenance.
The supports of this temporary working platform shall be designed in order to avoid damages or wear due to material flow.
The minimum operating loads of temporary working platform shall be 1.5 kN/m under distributed load for the structure.
In case of adjustable temporary working platform fitted with a locking nwchanism, 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 drum, isolation and energy dissipation shall be provided for the drum as well as for upstream and downstream sub-assemblies. See EN 1009-1:2020,4.10.1.
Permanents means of access shall be provided for the feed chute visual inspection and the discharge chute access and comply with EN 1009-1:2020, 4.4. A lifting accessory shall be provided for the wheels dismantling and designed in such way to ensure the stability during the maintenance phase.
4.10 Centrifugal thickening
A visual inspection opening as specified In EN 1009-1:2020, 4.2.3 shall be fitted.
4.11 Attrition cell
Visual Inspection openings as specified in EN 1009-1:2020, 4.2.3 shall be fitted with fixed guards complying with EN 1009-1:2020. 4.11 and fulfilling the requirements of EN ISO 13857:2019. 4.2.4.1, Table 4.
Permanent means of access shall be provided at maintenance and visual inspection access points and comply with EN 1009-1:2020, 4.4.
For maintenance purpose (e.g. blades replacement), lifting points shall be provided to lift the attrition sub-assemblies. These lifting points shall fulfil the requirements of EN 1009-1:2020, 4.17.5.
4.12 Sand dryer
At the top part of the sand dryer, a permanent means of access, including a platform shall be fitted and designed in accordance with EN 1009-1:2020,4.4.
4.14 Magnetic separators
To prevent hazards caused by ejecting metal parts from the magnetic separator, the trajectory shall be protected by fixed guards as specified in EN 1009-1:2020, 4.11, if technically practical. If this is not technically practical, the instructions for use shall recommend an enclosure to prevent the access to the danger zone, see Clause 6.
For drum separators, guards or protective devices shall be provided in order to avoid crushing and shearing hazards.
In order to limit exposure to electromagnetic radiations, operator position and passages should be located at a minimum safety distance of 5 m and a warning shall be provided as specified in 6.2 and instructions for use shall be given as specified in 6.3.3.
4.15 Dynamic air classifiers
Design shall allow safe removal of blockages inside the rotor.
The selection of the type of guard of the rotor shall be determined according to EN 1009-1:2020,4.11.
lfan access door to the rotor is provided, an interlocking guard with guard locking according to EN 1009- 1:2020,4.11.4 shall be provided to prevent access until the rotor has stopped rotating.
A temporary working platform shall be provided to give access inside the unit for lining maintenance. The supports of this temporary working platform shall be designed in order to avoid damages or wear due to material flow.
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 unit, isolation and energy dissipation shall be provided for the unit as well as for upstream and downstream sub-assemblies. See EN 1009-1:2020,4.10.1.
If maintenance openings are provided in the conical part of the unit, appropriate warning signs shall be provided to inform about hazards due to falling materials from inside the unit (see 6.2).
4.16 Dewaterlng wheels and bucket wheels
If there Is a hazard of shearing, cutting, severing, entanglement, drawing-in and/or falling related to the following constructional details.BS/EN 1009-5-2020 pdf download.