NUMERICAL ANALYSIS FOR AN OPTIMIZATION OF A POWERED ROOF SUPPORT OPERATING IN HAZARD CONIDTIONS OF MINIG TREMORS
1
Katowicki Holding Węglowy, KWK ”Wujek”, Poland
Mining Science 2015;22(Special Issue 2):171-179
KEYWORDS
ABSTRACT
The article presents an optimization of Ø0.21/0.16 hydraulic leg system operating in a powered roof support Glinik 13/25 Pp type, working at longwall 6, seam 501, KWK Bobrek – Centrum - in hazard conditions of mining tremors. The process included numerical modelling and computer software, ANSYS CFX. The optimization allows to achieve an adequate capacity and performance of the hydraulic system which increases workplace safety in the mines. The article provides basic requirements that must be provided in order to conduct an analysis in ANSYS CFX. The software was used to carry out 10 simulations, which allowed to determine an optimal flow for the subject leg.
REFERENCES (9)
1.
BILIŃSKI A., KOSTYK T., PRUSEK S., 1997. Rules of selection of powered roof supports for longwall workings,Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie. Miesięcznik WUG. Katowice, vol 3 (31) (in Polish).
2.
DOLEGŁO L., GIL J., STOIŃSKI K., 2009. Analytical assessment of volumetric capacity of the hydraulic system of powered roof support’s leg, Maszyny Górnicze, vol. 4 (in Polish).
3.
GIG (Central Mining Institue), 2013. Annual report on the state of natural and technological hazards in coal mining. GIG Security Center (in Polish).
6.
REGULATION OF THE MINISTER OF ECONOMY dated 28 June 2002 on safety and health at work, driving traffic and special fire protection in underground mines (Dz. U. Nr 139, poz. 1169, z 2006 r. Nr 124, poz. 863 and z 2010 r. Nr 126, poz. 855) (in Polish).
7.
STOIŃSKI K., 2000. Powered roof supports operating in hazard conditions of mining tremors, Central Mining Institute, Katowice (in Polish).
8.
STOIŃSKI K. AND KLABIS L., 2012. Modernization of hydraulic legs aimed at enhancing the dynamic resistance to shock loads as derivatives of tremors, Jubilee International Scientific and Technical Conference TEMAG 2012. Durability of structural elements and nodes of mining machinery. Ustroń, October 17-19 (in Polish).
9.
WUG (Higher mining office), 2013. Assessment of work safety in Mining, Katowice 2003-2008, Mining rescue services and public safety in connection with mining and geological activities in 2013 (in Polish).
Share
RELATED ARTICLE
| eISSN: | 2353-5423 |
| ISSN: | 2300-9586 |
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
