2. Bretby Gammatech
• A UK business built on a heritage of quality
• The technology is tried and tested and has proven to
be efficient
• A global player within the coal market
• A flexible working approach to ensure projects can
be aligned to customer needs
• A highly skilled workforce
• Custom innovative solutions to industry problems
• A strong network of local agents and distributors
worldwide, now working with PSC worldwide.
• An award winning business – Queens Award for
International Trade 2015, Smart Awards, Trade
Partners (Exporter of the Year) and regional
business awards
3. Over 270 Ash Probes Sold Worldwide
Australia, Bulgaria, Canada, China, Colombia, India, Indonesia, Macedonia, Mexico, Mongolia, Peru, Russia, Spain,
Spitsbergen (Norway), Thailand, Turkey, Ukraine, United Kingdom, USA, Vietnam & Zambia.
Which companies are already using Bretby
Gammatech Systems Worldwide?
Penna Cement Industries
Limited (PCIL)
4. Over 55 Ash Eye Installations
Turkey, Kazakhstan, China, Russia, South Africa, & Macedonia
Natural gamma is becoming a first choice technique
The Ash / Heat Eye Being Used Worldwide
5. Technology
The dirt associated with coal contains greater amounts of radioactive
isotopes than the coal itself. They are:-
Potassium K40
Uranium Series
Thorium Series
The gamma activity of coal increases with ash content
There are no radio active sources in the instruments
7. What is Ash content and why is it
important?
• Ash is the waste material left after coal is burned, Ash is one
element of the specification when coal is mined, processed
( washed) and sold to the energy sector or cement/steel producers.
• The supplier will have contractual constraints on the ash
percentage limits for production and sale.
• Our competitors use a radiation sources as part of their systems.
• Our use of natural gamma radiation to measure the ash or dirt
content of coal is a much safer, more cost-effective option. It
involves no health and safety issues, no specialist de-
commissioning procedures that are necessary with radioactive
techniques and it therefore minimises risks and protects workers
and ultimately the business.
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8. On line system- Ash and Heat Eye
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New for 2016-
PLC control
system with HMI
interface
11. The Lab Ash is a more recent
product based upon the Ash Probe.
It provides a quick ash from a 10kg
crushed sample
It comprises:
1. A Sample Chamber
2. A Display Unit
Benefits & Features:
Very Simple to use
Accurate results within <3 minutes
Sample does not need grinding
Easy to calibrate by user
No special calibration samples
needed
Up to 18 different named products
Can store up to 100 calibrations
Stores the latest 600 measurements
The Lab Ash
Lab Ash - Sectional Drawing
Sliding Lid
Coal Sample
(crushed or uncrushed)
Plastic Sample Beaker
Lead Castle
Scintillation Crystal
potted in a tufnol tube
12. The Gamma Eye
Gamma Eye Bucket Monitor Gamma Eye On Belt Monitor
For the Quick Assessment and Separation of Gamma Contaminated Material
The Bucket Monitor provides a quick assessment of
the bulk gamma contamination of excavated
material within the bucket of a mechanical digger.
The digger driver lowers the bucket onto the
monitor frame and once in position the system
automatically makes its measurement:
Red = Higher activity
Amber = Medium activity
Green = OK
The digger driver can then deposit the load in the
appropriate place for subsequent disposal or processing
The Gamma Eye On-Belt Monitor is a fully on-line system
providing a continuous assessment of the gamma activity
within a conveyed load.
These instruments are ideal for sites where significant
quantities of gamma contaminated material need to be
assayed and segregated within a short time frame.
Both these instruments have been developed by Bretby
Gammatech Ltd. in close association with Nuvia Ltd.
13. Gamma Eye- detection of gamma emitters in
construction sites
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New design for 2016
14. Gamma Eye
• Easily calibrated for a range of gamma contaminants
• User selectable alarm levels
• Automated initiation of counting
• Simple traffic light system to indicate alarm level reached
• Safe operation as no personnel need to be close to take meter readings
• Log of measurements maintained which can be downloaded to a PC
• Easy to generate and update background
• No moving parts
• 24 hour battery operation, powered by rechargeable sealed lead acid battery units
• Easy to transport around site
• Benefits:
• Quick & easy assessment of gamma contaminated material
• Fast throughput (one tonne per minute)
• Reduced measurement time leading to reduced time on site
• Reduced reclamation costs
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15. Ash Eye - Outline Details
Fully on-line ash monitor
Provides a continuous measurement of the
ash content of conveyed coal
Operates over wide range of ashes (~5-65%)
Over 20 years of operation experience
Performance monitoring has shown
achieved 0.6% dynamic precision
(ISO 15239)
No Radioactive Sources
16. Applications for Ash Eye
At Coal Mines
Run of Mine
Screened Raw Coal
Input to CPP
Washed Coal
Blend Control
Final Product
At Power Stations
Coal Deliveries
Stock yard management
Blend Control
Boiler protection
17. Principal Benefits
1. Continuous real time accurate ash information
2.Improvement in consistency
3.Producers can increase saleable tonnage
4. Buyers can reject inferior coal
deliveries or negotiate lower prices
5. System calibrated to each coal source by
using a sampling procedure
18. • Over 55 Ash Eye Installations
• UK, Hungary, China, Russia, South
Africa, Spain, Macedonia. New
systems in Kazakhstan and Turkey
• Natural gamma is becoming a first
choice technique
• No radioactive sources
Ash Eye
19. Block Diagram of on-belt Ash
Eye
Tonnage
Local Ash
Processor
Background Sensor
(under hood)
Main Sensor
(under belt)
Optional Remote
Monitor
Analogue & Digital
inputs to Computer
system
Belt Speed
20. .
EyeGraffix
EyeGraffix is our brand new remote monitoring
software application for the Bretby Gammatech Ash
Eye and Heat Eye ash monitoring systems.
• It allows users to see the current status of the
system and quality of coal being monitored as well
as being able to display historical activity,
generating reports and exporting data in formats
that can be used by other applications.
• The system also alerts users to system problems
or changes on coal quality, using audible alerts,
graphical icons or emails.
• Can monitor multiple systems simultaneously.
21. Features
Connect to up to 25 Ash-Eye/Heat-Eye systems simultaneously.
Alerts user to levels outside of normal limits (ash content, calorific value, etc.).
Shows a graphical representation of current and historical parameters.
Connects to systems over RS232/RS485 serial communications, Fibre-Optic or Ethernet.
Multiple EyeGraffix terminals can be used in a system using a LAN/WAN network to link
together (only one physical connection to each Ash-Eye/Heat-Eye system is required).
Generation of reports in Microsoft™ Excel or generic spreadsheet format.
Multiple reports can be configured to be generated automatically at regular intervals and
emailed to recipients.
System alerts can be notified to users by email, with the ability to define how long an alert
must be active for before being emailed out.
Remote viewing and setting of Ash-Eye/Heat-Eye system parameters and sensor status.
Settings of user defined limits for monitored parameters.
Multi-language support
22. EyeGraffix Software
Figure 1: Main screen showing 2 sites. Site A is a Heat Eye with the Ash having dropped below the alarm level and
Site B an Ash Eye with all parameters within limits.
26. If Moisture varies we use a microwave
moisture meter to provide the moisture
signal
This instrument measures the
moisture by detecting the changes in
the microwave signals transmitted
through the coal
Heat Eye CV Monitor
27. Block Diagram of Heat Eye
Tonnage
Belt Speed
Local
Processor
Moisture
Monitor
Optional
Remote Monitor
Analogue & Digital
inputs to Computer
system
28. Ash Probe system- Natural Gamma
• Stainless steel polished probe housing and carry bag
• Hard anodised ( standard) or Stainless Steel tip option
for hard coals
• 2 x 3m cables supplied, optional 10m cable or Low
temperature version
• Touch Screen display unit powered by NiMh battery.
• Intelligent battery charger
• Calibration Sleeve and shovel
• Operating manual ( on CD in English)
• USB to LEMO connector for direct data transfer
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32. Financial Benefits
1. Savings in Sampling & Analysis costs
2. Improvement in consistency leading to
higher price
3. Producers can increase saleable tonnage
4. Buyers can reject inferior coal
deliveries or negotiate lower prices
33. Other Benefits
1. Quicker information on Ash
2. More Information on Ash
3. More Confidence in Ash Control
4. More Satisfied Customers
34. Ash Probes Worldwide
Over Two Hundred Sixty (275)
Ash Probes Sold Worldwide
Australia, Bulgaria, Canada,
China, Colombia, India, Indonesia,
Macedonia, Mexico, Peru, Russia,
Spain, Spitsbergen (Norway),
Thailand, Turkey, Ukraine, United
Kingdom, USA, Vietnam & Zambia.
35. Customer site conditions
• Homogenised coal piles for calibration
• Customer to provide the lab analysis of
samples taken and report
• Sample reference (A&B sample if possible)
• Ash % values
• sample weight
• Office / Classroom location for one days
training session by Bretby engineer
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36. Lab Ash
• The LabAsh is a more recent product
based upon the Ash Probe.
• It provides a quick ash from a 10kg
crushed sample
• It comprises:
• 1. A Sample Chamber
• 2. A Display Unit
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38. Lab Ash benefits
• Simple to use
• Accurate results within ~3 minutes
• Sample does not need grinding
• Easy to calibrate by user
• No special calibration samples needed
• Up to 18 different named products
• Can store up to 100 calibrations
• Stores the latest 600 measurements
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39. Warranty and shipping
• Standard 12 months warranty, this does
not include customer damage.
• Spares parts available on request
• Certificate of Origin can be supplied
• CE marking on display unit
• HS Code 9030 1000 99
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40. Summary
• No Radiation sources used
• Proven technology for over 20 years
• Bretby products have no moving parts, low full
life costs.
• Full on site commissioning, and repair services
offered.
• Full support to customers by Parker Hannifin
sales companies
