Stiles Machinery Inc. 3965 44th Street SE

Grand Rapids, MI 49512

(616) 698-7500

fax (616) 698-9411

jkeilen@stilesmachinery.com

www.stilesmachinery.com

Mr. Joseph J. Keilen Product Manager

Dust Management Solutions

Nestro SuperFilter Features Benefit How Negative Fan System No material passes through fan impeller Fans are placed in the clean air fan chamber, on the

clean side of the filter media

Multiple Fans Quieter operation Use of multiple smaller fans, and noise reduction material Multiple Fans Minimize down time If one fan fails, the other fans can still operate as a system

Non-sparking Arrangement Reduced fire hazard potential Fans placed on the clean side of filter Dual Cleaning Styles More efficient bag cleaning Shaker style and reverse air style Continuous Cleaning 24/7 operation Segmentation of the individual filter modules

allows a true module “online/offline” cleaning program Central Control Panel Automated system Panel inclusive of all system functions and use of a PLC Energy Management feature Operate using less energy With multiple fans and pressure sensors integrated into

system, as air flow requirements rise or fall, fans are engaged or disengaged for more or less air volume.

Heavy Gauge Galvanized Steel No exterior maintenance required Use of high quality 11 gauge galvanized steel

2

Air Diffuser

Return Air DuctElevation Example

13'-1

01 2"8'

-21 2"

3'-3

1 2"3'

-31 2"

5'-7

"F

anC

ham

ber

Louv

erC

ham

ber

Sha

ker

Mot

orC

ham

ber

Filt

er B

agC

ham

ber

Hop

per

& S

crew

Sec

tion

Inlet Ducting

3'-1012"

1

2

3

4

5

6

7

8910

Summer/WinterDiverter Valve

23'-812"

8'-0

1 2"

34'-2

1 2"

Rotary Airlock

Integral Mounted FansReverse air cleaning manifold

2'-8

"

8"

18'-9

"

Ø1'-312"

2'-1"

3'

5'-1

1"

13'-1

0"

Return air ducting Supply Ducting

3

1. The dirty air enters the hopper of the filter, via inlet

ducting. This ducting can be a single large line that is then “Manifolded” into the hopper in order to achieve a low-constant inlet velocity into the filter hopper. The inlet ducting can also be tapped into the hopper on any of the four sides of the hopper; this is done in cases where the client wants to have a “Zonal System” allowing him to take advantage of the built-in Energy Management System.

2. These are the Explosion Relief Panel areas, normally

supplied with an up-sweep elbow to keep the lower area of the filter safer in case of an explosion. The explosion relief of these filters are designed in accordance to the European ATEX codes and laws.

3. The accumulated waste material will then collect in

the hopper of the filter, where it is then carried to one end of the filter by means of a Screw Conveyor. The screw conveyor operates at all times allowing material to be discharged from the unit.

4. Rotary Airlock- The airlock acts as a pressure barrier

and allows material to drop out of the hopper without allowing the hopper to become de-pressurized. This component also operates anytime the screw conveyor operates.

5. The Integral Mounted Fans are mounted in the fan

chamber and each fan is added to the system as the air volume grows, each fan is sized for approximately 5500CFM @-17.32” wg total static pressure. Fans are added together into the fan chamber to achieve the necessary air volume requirement. The fan chamber is also line with a noise absorbing material in order to keep noise emission levels lower.

6. Return Air Ducting- This ducting is supplied in 800mm

square galvanized ducting, and is designed to re-introduced filter air back into the facility; all air is cleaned and is below the OSHA levels.

7. Summer/Winter Diverter Valve: This is a useful

component that allows the client to shift the exhaust air to atmosphere in the summer or hotter months, thus not bringing in the heated air back into the plant. During the winter months however, the client will want to bring the clean air back into the facility in order to recoup the heated air.

8. Shaker Motors-This is the primary cleaning method

for the filter bags, each filter modules consist of 36 filter bags all mounted on a common frame that allows the shaker motor to vibrate and clean out the filter bags.

4

9. Reverse Air Louvers- This is the secondary cleaning

method. There are two louvers in this section, a large one that stays open during the filtering stage and small one that is closed during the filtering stage. When the PLC calls for cleaning, the large louver closes, and the small louver opens, this allows clean (positive pressure) air to be directed from the fan chamber back into the bags section and reverse the air through the filter bags and clean in this manner.

10. The air is ducted through a Reverse Air Cleaning

manifold ducting system. Once cleaning is over the large louver re-opens and allows the filtering to start.

6

7

8

9

10

11

12

13

14

15