Milkov Joint Stock Company Kompozit Korolev Moscow region Working with Beryllium in JSC Kompozit Workshop on Beryllium Applications and Health amp Safety ITER Organization 2830 June ID: 606626
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Aleksandr MilkovJoint Stock Company “Kompozit”, Korolev, Moscow region
Working with Beryllium in JSC “Kompozit”
Workshop on Beryllium Applications and Health & Safety
ITER Organization, 28-30 June
201
7Slide2
Types of work with BerylliumOrganization of working with berylliumVentilation systems and filtering the air of working zone
Contamination monitoring of facilities practicesMonitoring, Occupational Hazard and Medical Follow-upConclusions
Outline
Slide3
Types of work with Beryllium
Wire EDM for the tiles
. The tiles are produced from beryllium blocks by electrospark discharge cutting on wire-EDM machinesChemical etching of the tiles. To remove a defective layer, the tiles are chemical- etched in H2SO4, followed by etching sludge removal using HNO3Laser marking
of the tilesCleaning of the tilesControl PackagingStoringSlide4
Organization of working with beryllium
Berillium
division of Kompozit.Specialized laboratory and production building.Established in 1968Slide5
Organization of working with beryllium
С
hange room. Zone of personal clothes.Slide6
Organization of working with beryllium
С
hange room. Dressing zone for overalls.
ShowersSlide7
Organization of working with beryllium
Wire EDM for the tiles
. The tiles are produced from beryllium blocks by electrospark discharge cutting on wire-EDM machines. Local extraction systemsSlide8
Organization of working with beryllium
Wire-EDM machines. A
block of beryllium brand S-65 on the machine.Slide9
Organization of working with beryllium
Chemical baths with onboard
suction. Chemical etching of the tiles. To remove a defective layer, the tiles are chemical- etched in H2SO4, followed by etching sludge removal using HNO3Slide10
Organization of working with beryllium
Laser marking
of the tilesThe machine is connected to a system of air extraction.Slide11
Organization of working with beryllium
Line for ultrasonic cleaning of the beryllium
tiles.Bath №1 – Ultrasonic bathBath №2 – Rinsing in
distilled water with stirringBath
№3 – Hot-air drying
№1
№2
№3Slide12
Organization of working with beryllium
After cleaning smearing is taken from 1
dm2 of the surface of the tiles and sent for analysis.In more detail the method of analysis will be presented in the following slides.Slide13
Organization of working with beryllium
Packaging
StoringSlide14
Ventilation systems and filtering the air of working zone
The air of the working zone flows through in the ventilation system enters the cleaning system. the cleaning system consists of a 4-step system. Access to filters is strictly limited.
entry and maintenance in the systems of air cleaning possible only with airtight suit. Specially trained people.Slide15
Ventilation systems and filtering the air of working zone
After cleaning, air leaves the atmosphere from the tube. Tube height of 40 metersSlide16
Contamination monitoring of facilities practices
№
Object of supervisionFrequency monitoring1
Air working area and smearing in the
working area1 time per month
2
Atmospheric air:
A) city
B) industrial site
1 time per quarter
3
Air of laboratory premises
1 time per quarter
4
Air of administrative premises
1 time in 6 months
5
Snow: a) city
b) industrial site
1 time per year
6
Foliage
:
a) city
b) industrial site
1 time per year
7
The soil a) city
b) industrial site
1 time per yearSlide17
Contamination monitoring of facilities practices
Selection of air in the working zone in the breathing zone and smearing from the surfaces of the machineSlide18
Contamination monitoring of facilities practices
Selection of air in the working zone in the breathing zone and smearing from the surfaces of the machineSlide19
Beryllium contamination analysis
Calibration scaleSamples19Slide20
Analysis Method The concentration of free beryllium particles was determined using tile surface swabs
by a photometric method with a colorimeterSlide21
Monitoring, Occupational Hazard and Medical Follow-up
When applying for the job all applicants undergo preliminary medical examination. There is a list of medical contraindications for working with beryllium
.All employees undergo an annual medical examination.Medical examinations are held in specialized medical-sanitary unit № 170, KorolevSlide22
Monitoring, Occupational Hazard and Medical Follow-up
The working conditions of personnel engaged in the processing of beryllium and its compounds
A shortened working day (1 hour less)Daily preventive nutrition in the dining roomAdditional vacation time (7-15 days)Material allowance for work in harmful working conditions
Early retirement. Men at the age of 50. Women at the age of 45.Slide23
Conclusions
23At JSC
Kompozit carries out all requirements according to Russian security standards when working with beryllium. The staff engaged in work with beryllium for all the time of observation did not reveal any cases of occupational diseases.The staff and Visitors the work area, change into overalls and wear personal protective equipment.Process chain for the production of beryllium tiles not includes rooms with the potential high concentration of beryllium in air and on surfaces (where required airtight suit).
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Thank you for your attention!
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