APC On-Line
Analysing Technology
APC-On Line Analysing
technology for lignite
APC offers various on-line
analysers. The SOLAS device forms the heart of all these
arrangements, which can be used according to the analytical and
technical needs:
• SOLAS with continuous sampling and sample preparation
• SOLAS Standard Installation: Pneumatic sampling of fine-grained
material
• SOLAS with sample dryer for wet materials
• SOLAS as an analytical downstream device for already existing
conventional
samplers (e.g. impact sampler)
Sampling
The (smal ) part of the conveyed material falls through a lattice box,
which separates
a fraction of < 30 mm. The sampling material will be extracted from
throughout the
lattice box with the help of a screw conveyor (3 t/h).
Sample transport
From the screw conveyor the
sampled material will then be transported by a conveyor belt to the
sample preparation containers (as shown in the picture below)
• Belt conveyor with rain cover, capacity of max. 5t/h
• Dumping of the sample material by a dust proof entrance through the
roof of the preparation container into the intake of the first mill
• Manual feeding of sample material maybe accomplished either on the
conveyor belt or on top of the container depending from the space
available
• A metal detector is attached below the conveyor belt
Sample preparation
First the samples will be grinded down to < 10 mm in the preparation
container. Subsequently the material falls through a funnel
which concentrates the samples above the intake of a second screw
conveyor which is underneath. Thus fluctuations in the mass flow
resulting from fluctuations of the feed into he first mill are largely
compensated.
The screw conveyor supplies the material to a second mill in which fine
grinding to minus 2 mm occurs. A tubing branch is located at the
discharge of the second mill, which makes it possible for the SOLAS
device to suck in a sample from the milled sampling material.
First mill
• Capacity 6 t/h, 50 % of the capacity used at maximum mass flow
• Hammer mill, Number of revolutions 960 U/min (r.p.m.)
• Preparation < 10 mm
Second screw conveyor
for feeding mill fine
•Conveying capacity 200 kg/h
Mill fine
• Capacity max. 2
t/h, 10 % of the capacity used at maximum mass flow
• Hammer-mill, 1350 r.p.m.
• Preparation < 2 mm
• Automatic operation or manipulation of a "cleaning comb", which cleans
the long holes of the filter inset.
SOLAS
After the second mill the sample will be sucked to the SOLAS device,
which is accommodated in its own container.
The SOLAS equipment itself will be described more detailed in the
attached brochure.
The characteristic data's of the newest SOLAS generation are:
• Siemens Industry PC integrated
• Turntable for 18 samples (pure elements and synthetic samples) for the
simplified and precisely recalibration
• Linear drive with stepping motor for the enlargement of the irradiated
and hence analysed sample surface and thus improved analytical accuracy
• Administration of 10 calibration functions is standard, more on
request
• New APC-RF-Analyzer: Improved resolution (~ 140 eV at Mn-Kα) of the
spectrum, lower detection limits, higher analytical accuracy
Detector Unit X-PLORER 9000
Every 60 seconds a data
record is produced for:
• Ash content
• Sulfur content
• Aluminium content
• Silicon content
• Potassium content
• Calcium content
• Iron content
• Heating value
On demand other elements like P, Cl, Ti and Mn can also be measured by
the analyser
X-PLORER 9000.
1.5 Visualization
The visualization is made by the system WinCC from Siemens. All
operating conditions,
measured values, operating messages are clearly indicated and saved in
archives.
In the following some of the announcements are represented:
Set up of containers
The two identical standard containers for SOLAS and the sample
preparation system (measurements 5m x 3m x 3m) are set up next to each
other.
Both containers are kept at a moderate temperature over one split air
conditioning system each. Both containers are stored on pneumatic spring
elements.
Technical data sheets APC
products
|
X-PLORER
9000 |
|
Subsystems |
Analyser
Electronic (XP-A), Analyser Probe (XP-M),
Control station (PC), Software |
Analyser
Electronic
(XP-A) |
Power supply, High voltage generator, control station
(PC), communications (RS 232),
HARTING-connection to (XP-M) |
Analyser Probe
(XP-M) |
Measuring
head with detector, x-ray tube
(optional two different tubes and pivot-mechanism for
detector)
Option: Helium flushing
(not combinable with pivot-mechanism) |
|
Power supply |
Single Phase 230 Volt ± 15 % at 5 A (UPS recommended) |
|
Dimensions |
(XP-M): 205 x 470 x 375 mm; 2 kg
(XP-A): 100 x 220 x 250 mm; 10 kg |
|
Operating temperature |
0 - + 30 °C |
|
Communication |
HARTING-connection between (XP-A) and (XP-M)
RS 232 between (XP-A) and Control Station
Software interface OPC via Ethernet |
|
Software |
Concentrations, intensities and spectra calculated and
stored in MS Excel. |
|
Internal Alarms |
X-ray off, detector temperature, connection to (XP-M) |
|
Measurement Principle |
ED-XRF-Analysis,
X-ray tube works on high voltage (< 15 kV), 1-5 Watt.
No cooling water required. |
|
Analytical performance |
Solid state detector with Peltier cooling, temp. –10 °C
Elements: (Mg, Na)*, Al…U *depends on concentration
1024 channel
Count rate up to 300kHz, (operation point 30 kHz)
Resolution 160 eV at Mn kα with count rate 1 kHz
X-ray tube: 9 Watt maximum, different target materials
available (Rh, Cu, Ti, Cr, ……) |
|
SOLAS ED-XRF 9000 |
|
Subsystems |
X-PLORER 9000; Siemens S7 316-2-DP, Panel-PC,
Software; pneumatic |
|
X-PLORER 9000 |
ED-XRF-Analyser with x-ray tube and solid state detector |
Siemens
S7 316-2-DP
Panel-PC |
Control system: 64x digital I/O;2x analog input
Visualisation WinCC |
|
Software (Panel-PC) |
Windows NT 4.0 SP6
Visualisation Data storage: Siemens WinCC
Calculation: MS Excel. |
|
Power supply |
1x Single phase 230 Volt ± 15 % at 16A (USV required)
1x Single phase 230 Volt ± 15 % at 16A
1x 400 V or 500 V (please specify); 4 KW |
|
Pneumatic |
Dried air 6 bar 150 l/min |
|
Dimensions |
700 x 1460 x 1880 mm; 600 kg |
|
Operating
temperature |
15- + 25 °C (air-conditioned container recommended) |
|
Communication to
PLC |
Siemens Profibus DP
Software interface OPC via Ethernet |
|
Internal Alarms |
23 alarms: concerning pneumatic valves, electric actors |
|
Measurement time |
~60 s (less or more possible, depends on application) |
|
Principle |
Pneumatic sample transport and preparation combined
with automatic cleaning cycles provides clean and efficient
handling of sample stream.
Measuring of the prepared sample by ED-XRF |
|
Sample
conveying |
- Directly at a transfer-point:
This technique is often applied, when bulk materials with
large lumps have to be sampled.
- From the upper side of a conveyor belt:
Only possible with steady / harmonious conveyor belt
level and grain-sizes smaller than 30 mm possible.
- In combination to a conventional sample-/processingsystem:
In this case SOLAS operates as a quick-analysing device |
|
Mechanical
installation |
In air-conditioned container with shock absorber
up to 40 meter distance to sampling point
max 6 different sampling points possible (optional) |
|
HAMILL 4000 |
|
Main Parts |
2x three-phase asynchronous motor, hammer mill |
2x three-phase
asynchronous
motor |
Mill drive
cleaning drive |
|
Hammer mill |
14 hammer mill with special cleaning device for hammers |
|
Power supply |
1x 400 V or 500 V (please specify); 5,5 KW
1x 400 V or 500 V (please specify); 0,25 KW |
|
Dimensions |
1100 x 800 x 600 mm; 550 kg |
|
Operating
temperature |
0-50 °C |
Environmental
classification |
IP 54, Sealed mill box |
Mechanical
performance |
Grain size input:0 – 40 mm
Grain size output:0 – 7, 0 – 10 mm
(depends on sieve size)
Mass flow:4000 kg/h |
|
HAMILL 250 |
|
Main Parts |
2x three-phase asynchronous motor, hammer mill |
2x three-phase
asynchronous
motor |
Mill drive
cleaning drive |
|
Hammer mill |
10 hammer mill with special cleaning device for hammers
additional cleaning device for slotted sieve |
|
Power supply |
1x 400 V or 500 V (please specify); 5,5 KW
1x 400 V or 500 V (please specify); 0,25 KW |
|
Dimensions |
870 x 560 x 482 mm; 260 kg |
|
Operating
temperature |
0-50 °C |
Environmental
classification |
IP 54, Sealed mill box |
Mechanical
performance |
Grain size input:0 – 20 mm
Grain size output:0 – 1, 0 – 2, 0 – 3, 0 - 4 mm
(depends on sieve size)
Mass flow: 250 kg/h |
Web
Page:
www.apc-analytics.com
Company