ME home
 
  SME FaceBook SME Twitter SME LinkedIn RSS Feed

Subscriber or
SME Member Log On

WEB-ONLY CONTENT

Go to SME eNEWS

MINING INDUSTRY EVENTS

2019 SME Annual Conference & Expo  - Conference
Feb 24, 2019 - Feb 27, 2019
CMA 121st Nat'l Western Mining Conference  - Conference
Feb 24, 2019 - Feb 27, 2019
PDAC  - Conference
Mar 3, 2019 - Mar 6, 2019
TMS 2019 Annual Meeting & Exhibit  - Conference
Mar 10, 2019 - Mar 14, 2019

METAL PRICES


Au
Ag
Pt
Pd
Ni
Cu
Al
Pb

AGGREGATES
AND MINERALS
MARKETPLACE


http://aggregatesmineralsmarketplace.com
The Mining Engineering, SME and NSSGA
Online Buyers Directory Site
The Online Global Mining and Minerals Library Site
May 2018
Volume 70    Issue 5

Dust control by air-blocking shelves and dust collector-to-bailing airflow ratios for a surface mine drill shroud

Mining Engineering, 2018, Vol. 70, No. 5, pp. 69-74
Zheng, Y.; Reed, W.R.; Potts, J.D.; Li, M.; Rider, J.P.

DOI: https://doi.org/10.19150/me.8238

ABSTRACT:

The National Institute for Occupational Safety and Health (NIOSH) recently developed a series of validated models utilizing computational fluid dynamics (CFD) to study the effects of air-blocking shelves on airflows and respirable dust distribution associated with medium-sized surface blasthole drill shrouds as part of a dry dust collector system. Using validated CFD models, three different air-blocking shelves were included in the present study: a 15.2-cm (6-in.)-wide shelf; a 7.6-cm (3-in.)-wide shelf; and a 7.6-cm (3-in.)-wide shelf at four different shelf heights. In addition, the dust-collector-to-bailing airflow ratios of 1.75:1, 1.5:1, 1.25:1 and 1:1 were evaluated for the 15.2-cm (6-in.)-wide air-blocking shelf. This paper describes the methodology used to develop the CFD models. The effects of air-blocking shelves and dust collector-to-bailing airflow ratios were identified by the study, and problem regions were revealed under certain conditions.



Please login to access this article.

OR

If you are not an SME member, you can join SME by clicking the button below.