DOI: 10.11799/ce201802020
Research and application of lump coal rate improving technology in Sunjiacha Longhua Coal Mine
WANG Li
WANG Dong
Abstract：In order to improve the lump coal rate, according to the various factors that influence the lump coal rate in Sunjiacha Longhua Coal Mine. Combined with the actual situation, the technical research is carried out to increase the lump coal rate at the source of raw coal and reduce the loss of lump coal in the transportation process. Such as coal face loosening blasting, coal shearer drum parameters optimization, crusher hammer height optimization, tape machine loading point transformation and installation of raw coal silo chute. The results show that after the technical research and application, the lump coal rate increased by 10%~12.5%. the technology is of certain practical value, the effective implementation of which helped the coal mine to achieve favorable economic benefits in a market downturn.
Keywords：lump coal ratedeep hole pre-splitting blastingshearer drum transformationspiral chuteloading point transformation
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 73-77 )