Dust suppression system for dust control during unloading of any dry raw materials into intake hoppers

1. midecoYour Partner in Environment Technology
Burnley® Baffles
Dust Suppression Device
for intake hoppers
2019

2. Burnley® Baffles system is a device that is applied to bulk product receiving hoppers to
reduce the liberation of fugitive dust during bulk product transfer operations.
Originally developed in the late 1970’s for the KBB Malting facility in Perth
Western Australia
Consists of blades, which rotate to allow the product through to the hopper,
and keep the dust below the blades
Burnley® Baffles

3. When Burnley® Baffles are applied to a hopper along with a
suitably sized dust collector 100% of the dust can be captured.
• Diffuse and redirect the displaced air within the hopper itself
Burnley® Baffles dust suppression device:
• Reduce the open face area of a hopper
When applied to a hopper alone Burnley® Baffles will normally
eliminate 75 to 80% of the dust being liberated.
Burnley® Baffles
Burnley® Baffles Principles
The operating principle behind Mideco Burnley® Baffles is management of air
movement.
There are two air movement issues that need to be managed.
1. Management of air being drawn by the product
2. Management of air being displaced from the hopper by the product

4. DC connection

5. DC connection

6. Baffles to suit any size hopper
Burnley® Baffles
• Easy to install
• Simple yet clever design
• Maintenance free
• Gravity operation
• Starting at 1.6mm galvanized sheet steel for Grain applications to
much thicker abrasion resistance steels for mined materials with
large lump sizes.
• Reduce the cost of aspiration system for intake hopper up to 75%
in comparison to stand alone bag house installation

7. • Grain processing facilities
Applications
• Fertilizer production facilities
• Cement plants
• Ports
• Lime, rock, ores handling
• Mines/quarries
• Glass production facilities
Depending on type of product processed, different
Burnley® Baffles Models should be applied

8. Baffles interlock
5 minutes installation per baffle

9. Grid mesh on top to
stop damage to the
blades from foreign
products
Loading from
wagons

10. Loading from
trucks

11. Wharf Hoppers

12. Burnley® Baffles can be implemented as on-demand
dust suppression device
On-demand
installation
Baffles are installed into a frame, that can be lifted in
and out depending on the product processed

13. • Very common for Grain,
Wheat, Rice, Corn, Meal,
etc
Main benefits
• Maintenance free
• Installations worldwide
• Self-operating
• Time saving
• Suitable for any dry raw material
• Suit any hopper dimensions
• Simple assembly and installation

14. Case study
Grain
Soybean Processing plant in China
Problem
Solution
Burnley® Baffles Model 1
• dumping soybeans to the underground
hopper by truck
With the population of more than 1.3 billion and counting China is one of world’s
leading importers of grain. As more grain processing facilities are built every year the
country’s demand for dust suppression equipment is on the rise.
1.6mm Gal Steel plate
• soybean oil refined plant close to the river
• customer did not want to invest into the
big filter due to the high energy
consumption issue

15. Case study
Biomass
Port Authority in Panama city, Florida, USA
Method of loading: rail dump delivery
Burnley® Baffles Model 2, 3mm Gal Steel
Product: wood pellets
Problem
Solution

16. Case study
Fertiliser
off-load various materials (for fertiliser) from ships.
Nyrstar (originally Impact Fertilisers), Hobart, Tasmania
49 x Mideco Model 2 Burnley® Baffles
Two hoppers of 5,4m x 6,7m
3mm steel plate
Solution
Problem

17. Case study
Cement/Clinker
1. Burnley® Baffles, Model 2
On–demand system
40 baffles for each hopper
Installed into the frames.
QUBE Ports Pty Ltd in Kwinana port, WA.
2. ECP 48 mounted on hopper
with envelope style filter bags
Method of loading: 10m³ clam shell grab
Two large wharf hoppers, 5.8m x 6.8m.
Bulk density: 3200kg/m³
Solution
Problem
Challenge: 100% dust collection required

18. Case study
Coal
Burnley® Baffles, Model 3
The new plant fed the existing BBQ fuel production plant
Product: mineral char (from brown coal) with pieces
up to 25 mm in size
Australian Char, Morwell, Victoria
Coal unloading generated a significant amount of dust.
Problem
Method of loading: dropping into hoppers from
front end loader positioned at the height of 500mm.
Capacity: 2000kg to 3000 kg per bucket
Two hoppers 5,5m x 2500m each
Solution
heavy-duty mild steel with 5mm plate.

19. Case study
Hard Rock
• Feldspar, 1 ½” – 3” Lumps
• Mica Flakes
• Mica, ground
• Silica sand, dry
• Sandstone, broken
Silicon Metal Carrollton, Kentucky, USA
The baffles were specifically
designed, heavy, welded
construction.
1’4” thick “Endura Steel”
Material:
The product processed is Silicon Metal with lump size up
to 80mm:
Metal rail/road receiving facility

20. Hopper Discharge with Baffles
20 seconds
40 seconds
30 seconds
Hopper Discharge without Baffles
Case study
Hard Rock

21. Agents worldwide
Ukraine
Israel
China
USA
Canada
Germany
North America
Europe
Asia
Middle East
Iran
Chile
LATAM
UK & Ireland
France
Ukraine & CIS
South Africa

22. Manufacturing
MIDECO Headquarter and
manufacturing facilities
Melbourne, Australia
Texas, USA
Vancouver, BC, Canada
Kyiv, Ukraine

23. Installations
worldwide
USA
Uzbekistan
China
New Zealand
Ukraine
Israel
Lithuania
United Kingdom
Saudi ArabiaAustralia
France
Canada

24. Our customers

25. www.mideco-llc.com
+61 3 8873 0200
marketing@mideco.com.au
midecoYour Partner in Environment Technology