How to measure solids flow? Mass flow of Bulk Solids?

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How to measure solids flow?
How to measure bulk solids mass flow?
How to measure flow of bulk solids?

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SolidFlow
Measurement of solids in diluted phase in free fall and
pneumatic transported applications

 Applicable to quantities approx. up to 20 t/h
 In pneumatic or in free fall transport
 4...20mA-Signal
 Accuracy +/-guatda.com/cmx.p2...5%
 All materials measurable
 Easy installation / easy retrofit
SolidFlow - Features

SolidFlow - Installation

Installation in a pneumatic transport Free fall installation
SolidFlow - Applications

 Material: Spice
 Freefall after screw feeder
 Quantity: approx. 14 kg/h
 Diameter: DN50

 Material: Cement
 Freefall after screw feeder
 Quantity: approx. 12 t/h
 Diameter: DN200

 Material: Limestone
 Quantity: ca. 1,8 t/h
 Vertical pneumatic pipe
(waste incinerator plant)

 Pneumatic transport from silo to mill
 Material: coal dust

MaxxFlow
Continuous mass flow measurement independent of pipe installation

 Measuring range: 10…300 t/h
 Arbitrary mounting position (inclined / free fall)
 No intrusive parts into the cross-section
 Independent from the material velocity
 Headroom: max. 330 mm
 Accuracy: +/-3 %
 Temperature up to 120°C
 No danger because of abrasions
 Works with 3% to 50% of filling in the pipe
 High mechanical stability Throughput (kg/s or t/h) calculated by:
Density (kg/m³) x Velocity (m/s) x Cross-Sectional Area (m²)
MaxxFlow - Features

After bucket elevatorAfter screw feeder After slides
MaxxFlow - Installation

 Material: potash salt
 Impact weigher replacement
MaxxFlow - Applications

MaxxFlow - The substitute for impact-plate-systems
What is the drawback of
impact-plate-systems?
 Accuracy is mostly not sufficient
 Mechanical parts in process
 Big headroom necessary
 Not dust proof
 Difficult calibration

MaxxFlow - Calibration
 Reference per drop test ?
NOT ANYMORE !
Only 10 litters of material needed for
calibration.
Conditions:
Knife gate below the sensor
Material inlet above the sensor

 Quantity: 80…200 t/h
 Material: Cement
 Mill optimization 3 Systems in total

 Quantity: 50…100 t/h
 Material: cement
 Mill optimization

 Range: 70 up to 130 t/h
 Raw meal
 DN 200
 after air conveyor

Defining MaxxFlow
3%
To ensure greater process safety we only recommend the MaxxFlow
for maximum concentration amounts of 50% pipe section
The sensor shall operate with the maximum recommendable
concentration of material inside the tube
Information to define MaxxFlow
50%
Concentration
Not possible to change
Possible to change

DensFlow
Continuous solids mass flow measurement for dense-phase

Pneumatic Dens phase Conveying
DensFlow - Applications

DensFlow - Applications
 99% in blast furnace
 applications (coal measurement)

PART OF THEENVEAGROUPPART OF THEENVEAGROUP Link to
the
PicoFlow
Mass flow detection in thin stream applications

PicoFlow - Installation

PicoFlow - Applications

SpeedFlow
Speed measurement for solids

Animal food
 Flow: 300 ... 400 kg / h
 Range: 10 a 12 m/s
 Product: ingredients
 Control speed of the
material to guarantee right
particle size
SpeedFlow - Applications

FlowJam
A device which is telling you if there is material in motion or not
Principle = Microwave
Utilization of the Doppler Effect

 Detection through every non-conductive
material (build up)
 Easy installation with 1 ½“- fitting
 Only a relay-switch
 Easy isolation to high temperature and high
pressure with adapter
 High sensitivity version available
max. pressure: 20 bar
max. temperature: 200°C (optional 700°)
FlowJam - Features

 Smaller sensor (only 8 cm)
 Sensor and electronic are separated
 Applicable in Ex-zones (only with adapter)
FlowJam ATEX
FlowJam S - Features

FlowJam - Installation
e.g. monitoring of mixing processes e.g. detection in pneumatic pipes

Monitoring of cyclone-outlets
in a sugar plant
Detection of wood chips after a rotary valve
FlowJam - Applications

Detection of coal in every single lance in
a steel plant in Austria
Coal detection in every single lance in a
steel plant

Flow detection of cement
after air chutes
Flow detection of material over conveyor belts

Detection in a cyclone (600 °C)
(Cement plant)
FlowJam - Application

The new FlowJam Plus supplies 2 relay signals:
 Flow / no flow (like all the rest of the providers)
 Full / empty - while the no flow-signal
(non of the other providers can offer this)
Link to
the
FlowJam Plus - Features

FlowJam A
Material flow monitoring for hose lines

FlowJam A - Features
FlowJam A detects streams of solids of all types flowing at
a minimum speed of 0.1 m/s through the detection area.
The detection is independent of the direction of flow
through the Doppler effect evaluation system.
The flow of material through non-metallic pipelines is
displayed by two switching states on the output relay.
The sensor differentiates between the two switching
states:
• Material flow
• Material blockage or standstill.

SlideControl
Trend monitoring in air slides

SlideControl detects the variation of the
distance between moving material
surface and sensor.
System
SlideControl - Installation

SlideControl - Applications

Paddy
Screen Break Detection

Screen in normal conditions After screen break, some
particles start passing through
Paddy - Function

 Maximum flow: 20 t/h
 Oversize flow must be 10% of total flow (mass %)
System FFT spectral
analysis
Results
Paddy – How it works?

Vibration
screen
Detection of which
screen is broken
Paddy - Applications

....generally all branches where we find solid materials
Industries
Incineration Food and Pharma Cement
Steel Carbon Black Grain

Incineration
1. Point level detection in charging chute
2. Mass flow measurement of absorbent
3. Flow/NoFlow detection at cyclone outlet
4. Ash level detection at filter outlets
5. Flow detection at ash transportation system
6. Continuous level measurement in storage silos
7. Individual chamber baghouse performance
monitoring
8. Predictive bag filter row monitoring
9. Process gas monitoring
10. Mainstack compliance gas, dust and flow
measurement
11. Potential hazards measurements

Food and Pharma
1. Mass flow measurement out of spray dryer
2. Continuous moisture measurement in
fluidized-bed dryer
3. Mass flow measurement for inline blending
4. Flow/NoFlow detection in return powder lines
5. Primary filter performance monitoring
6. Compliance dust measurement stroke trending
7. Ambient dust monitoring
8. Potential hazards measurement

Cement
1. Continuous mass flow measurement of mill
reject
2. Flow trending in air slide
3. Flow/NoFlow detection on cyclones
5. Mass flow and velocity measurement of coal
into kiln
6. Continuous moisture measurement of
secondary fuel
monitoring
8. Predictive bag filter row monitoring
9. Silo baghouse performance monitoring
11. Mainstack emissions compliance gas, dust and
flow measurement
12. Potential hazards measurement

Steel
1. Mass flow measurement of pulverized coal into
blast furnace
2. Flow/No Flow detection in single coal lance
3. Continuous moisture measurement of coal
4. Continuous flow measurement of sinter dust
5. Level detection in storage silos
8. Monitoring electro-flter efficiency
10. Mainstack emissions compliance gas, dust and
flow measurement
11. Potential hazards measurements

Carbon black
1. Flow/No Flow detection at filter outlets
2. Flow measurement after pelletizer
3. Continuous moisture measurement after dryer
5. Predictive monitoring of bag row failure
6. Final stack emissions for compliance and
performance monitoring
7. Emissions compliance monitoring
8. Potential hazards detection

Grain
1. Flow measurement after intake and cleaning
2. Flow/No Flow detection of ﬂow into roller mills
3. Continuous moisture measurement after
conditioning
4. Screen break detection
7. Stroke filter performance
8. Ambient dust monitoring
9. Compliance dust emission measurement

SWR engineering
Messtechnik GmbH
Gutedelstraße 31
79418 Schliengen
+49 (0) 7635 827248-10
info.swr@envea.global
Contact

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How to measure solids flow? Mass flow of Bulk Solids?

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