![Page 1: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/1.jpg)
Crenshaw Machine Systems Retractable Liquor Gun Mount
Doug Sanders
Operations Manager Chemical Recovery / Woodyard
Mahrt Mill
WestRock
![Page 2: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/2.jpg)
Recovery Boiler Blowback
• Black liquor into furnace to create steam & recover cooking chemical
• Airflow managed by FD and ID fans
• Blowback caused by change in pressure inside the boiler
- Operated at slightly negative pressure
• Hazards to employees
- Flame and slag exiting boiler caused by furnace pressure change
- Startup & shutdown high potential for blowback
![Page 3: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/3.jpg)
Normal
Operation
Blowback
![Page 4: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/4.jpg)
Proactive Recognition of the Hazard
• Implemented as strategic planning, not as response to injury
• Preventative solution aimed at reducing employee line of fire exposure
• Mechanical design reduces exposure for both operations and maintenance personnel
• Employee Engagement: hourly/salary worked together
![Page 5: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/5.jpg)
Solution
• Worked with liquor gun nozzle supplier
• Crenshaw Machine Systems
• New cradle created
• Trial RB #1 2016, liked and installed
• RB #2 installed 2017
• Cost ~ $9,000 each
![Page 6: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/6.jpg)
Retraction Mechanism
Angle Adjustment
Locking Mechanism
Rail Cover
Adjustable Rail Lock
![Page 7: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/7.jpg)
Old Liquor Gun Mount
10” from Boiler Wall
New Liquor Gun Mount
28” from Boiler Wall here, adjustable
Slag from Blowback
RB1
![Page 8: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/8.jpg)
Gained 30” spacing away from the boiler opening
New Nozzle, 60” from front flange to bend
Old Nozzle, 30” from front flange to bend
![Page 9: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/9.jpg)
New nozzles and cradles in operation with shields and “special PPE” labeled area
RB #2
RB #1
![Page 10: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/10.jpg)
Most dangerous zone improved;RB #2 liquor gun #3
5 Gallon Bucket for scale on close
quarters
![Page 11: Crenshaw Machine Systems Retractable Liquor Gun Mount · Mechanical design reduces exposure for both operations and ... Worked with liquor gun nozzle supplier ... Retraction Mechanism](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb0d70e929f4c38ca263f41/html5/thumbnails/11.jpg)
Questions?