Dust Control In Bag Filling Operations
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Dust Control In Bag Filling Operations
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Author : Jon C. Volkwein
language : en
Publisher:
Release Date : 1985
Dust Control In Bag Filling Operations written by Jon C. Volkwein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Bagging categories.
Dust Control In Bag Filling Operations
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Author : Jon C. Volkwein
language : en
Publisher:
Release Date : 1985
Dust Control In Bag Filling Operations written by Jon C. Volkwein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Pallet Loading Dust Control System
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Author : Andrew B. Cecala
language : en
Publisher:
Release Date : 1988
Pallet Loading Dust Control System written by Andrew B. Cecala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Coal mines and mining categories.
Effectiveness Of Three Water Spray Methods Used To Control Dust During Bagging
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Author : Jon C. Volkwein
language : en
Publisher:
Release Date : 1982
Effectiveness Of Three Water Spray Methods Used To Control Dust During Bagging written by Jon C. Volkwein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Bagging categories.
Principles Of Dust Control In Powder Handling And Packaging Operations
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Author : L. A. Morris
language : en
Publisher:
Release Date : 1993
Principles Of Dust Control In Powder Handling And Packaging Operations written by L. A. Morris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Air categories.
Impact Of Background Sources On Dust Exposure Of Bag Machine Operator
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Author : Andrew B. Cecala
language : en
Publisher:
Release Date : 1986
Impact Of Background Sources On Dust Exposure Of Bag Machine Operator written by Andrew B. Cecala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Bagging categories.
The Bureau of Mines has recorded a number of different background dust sources that significantly contaminate the air breathed by bag machine operators. These background sources, observed at five different plants over the past 2 years, can expose bag machine operators to more significant dust concentrations than the filling process itself. To keep bag operator exposure within acceptable dust levels established by the Mine Safety and Health Administration, U.S. Department of Labor, the significance of these background sources must be realized, and the sources must be identified and controlled. The purpose of this work is to identify common background dust sources and show the significant effects that they have on the bag operator's overall dust exposure.
Dust Control Handbook
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Author : V. Mody
language : en
Publisher: William Andrew
Release Date : 1988
Dust Control Handbook written by V. Mody and has been published by William Andrew this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Medical categories.
Consolidates information developed by industry and government laboratories on dust control engineering techniques. Designed for the minerals processing industry, the technology applies to other industries as well. Dust, its prevention, formation and control are examined, including wet and dry control systems, personal protection, and testing methods.
Dust Protection For Bag Stackers
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Author : Andrew B. Cecala
language : en
Publisher:
Release Date : 2001
Dust Protection For Bag Stackers written by Andrew B. Cecala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Dust categories.
"Mineral processing plants in the United States and throughout the world process material that is finely ground and placed into bags for shipping to the consumer. These bags normally range from 50 to 100 pounds in weight. Once the material is placed in these bags, a bag stacker loads the bags onto pallets. A bag stacker is exposed to a lot of dust that is mainly released by the force from loading the bag onto the pallet. The two main sources are the dust on the outside of the bag and the dust that escapes from inside the bag as it is loaded. The Mine Safety and Health Administration's (MSHA) records indicate the bag stacker's dust exposure is one of the highest of all workers at mineral processing operations. Ways to reduce the dust exposure and strain to the bag stacker are in constant development. Recently, automated systems have been built. These systems range from fully automated, which totally remove the worker from the bag-stacking process, to semi-automated systems, in which the bag stacker still performs some of the functions. This Hazard Control deals with controlling the bag stacker's dust exposure during use of a semi-automated palletizing machine. The worker slides the bags into position on the palletizing machine. Once an entire layer of bags is positioned, the bag stacker operates the controls on the palletizing machine to lower the layer of bags onto the pallet. An air slide is built into the semi-automated palletizing machine so the bags are easier to move. This slide uses a metal table with air jets that exit through small holes at high velocities, similar to an air hockey game. The dust problem occurs because the air slide causes dust to blow up onto the bag stacker, significantly increasing the dust exposure. NIOSH researchers became aware of this problem while working at a mineral processing operation that was having problems with a bag stacker who was overexposed to dust. The air slide on the semi-automated palletizing unit was determined to be the main cause for the high dust concentrations. The impact of the air slide on the bag stacker's dust exposure was found by using real-time dust monitors. Figure 1 shows the bag stacker's average respirable dust exposure while working with product bags of three different mesh sizes when the air slide was either on or off. The bag stacker's respirable dust exposure was 5 to 11 times higher when the air slide was on compared with when it was off. This mineral processing operation used an exhaust ventilation system with an exhaust hood at the back of the palletizing unit. The exhaust ventilation system was not powerful enough to immediately capture the dust blown up from the air slide. An overhead air supply island system (OASIS) was also used to provide an envelope of clean air over the bag stacker. The OASIS at this operation brings in outside air through two different filter stages and directs the clean air down over the bag stacker. This envelope of clean air was not powerful enough to overcome the dust that was being blown up into the bag stacker's breathing zone from the air slide. The key to lowering the bag stacker's dust exposure to MSHA-acceptable concentrations was to make a few simple changes and to slightly modify the bag stacker's work habits. The bag stacker had been leaning out over the air slide table and placing his upper torso in the front part of the exhaust ventilation system capture hood. Therefore, NIOSH researchers suggested that the exhaust hood be modified to make it physically impossible for the bag stacker to place his or her upper torso into the hood (Figure 2). The next modification involved installing plastic stripping around the perimeter of the OASIS. The plastic stripping gave the bag stacker a physical indication of the clean air boundary provided by the OASIS. Testing was repeated after the changes were made to the semi-automated palletizing system. This time, the testing showed that the changes to the system had minimized the impact of air slide contamination to the bag stacker. Once again, three product sizes of mesh bags were evaluated. No increase was found in the bag stacker's dust exposure with two of the products, and only a very slight increase was found with the other product. The changes made to the bag palletizing process accounted for the reductions of the bag stacker's respirable dust exposure to MSHA-acceptable dust concentrations. NIOSH researchers believe that all operators using this type of semi-automated palletizing system need to be aware of the serious dust contamination that can occur to the bag stacker from the air slide. To control high dust exposures from air slides on semi-automated palletizing units (Figure 3), make the following modifications: 1. Use an exhaust ventilation system with an effective hood design to capture the dust generated during the bag stacking process. 2. Use an OASIS to provide an envelope of clean air over the bag stacker. 3. Place plastic stripping around the OASIS to provide a boundary of the clean air from the system. 4. Modify the bag stacker's work practices to have the worker stay within the envelope of clean air provided by the OASIS."--NIOSHTIC-2.
Dust Control During Construction Operations
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Author :
language : en
Publisher:
Release Date : 1960
Dust Control During Construction Operations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with categories.
Asme 71 Pem 14
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Author : Kenneth E. Johnson
language : en
Publisher:
Release Date : 1971
Asme 71 Pem 14 written by Kenneth E. Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Dust control categories.