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摘要
本设计矿井为七台河精煤集团有限责任公司龙湖一矿的新井设计,,服务年限68a。井田内有12层可采煤层,即54A、55、56、57上、57、58上、58、59、62C、63、65B、67上,共划分为3个水平开采。井田平均走向长5500m,平均倾斜长5000m,煤层平均倾角12°,属缓倾斜煤层。
由于井田倾斜长度较大,且为缓倾斜煤层,以及煤层地质条件等因素影响,决定本井田内全部采用倾斜长壁采煤法开采,工作面全部为综合机械化采煤。本设计矿井采用双立井和集中大巷开拓布置方式。
在本设计中,大巷运输采用1200mm皮带运输机运输,。主井选用一对16t箕斗提煤,副井用罐笼运送人员和材料等。
龙湖一矿通风系统为中央并列式,通风方式为抽出式。
本设计龙湖一矿年工作日为330d,两个工作面达产,主井每日提煤时间为16h。矿井每昼夜四班工作,其中三班生产一班准备。
本设计进行-150水平的排水设计,,最大涌水量为250m3/h,涌水时间为60d,矿井正常涌水量为135m3/h,涌水时间为305d,矿井水容重为965kg/m3。
关键词:工业储量开拓方式倾斜开采采煤方法回采工艺
Abstract
This is LongHu No1 coal mine of QiTaiHe coal group pany new mine service life is 68a. It altogether have 12 coal seams,they are 54A, 55, 56, on 57, 57, on58, 58, 59, 62C, 63, 65B, on 67. The longth of the mine field is 5500m, The dipth of the mine field is 5000m. the coal bed average inclinationangle 12°,is a gently inclined seam.
Beacause the length of a larger mine tilt and a gently inclined seam coal geological conditions and the impact of factors such as, Mine decision within the oblique longwall mining exploitation, face all of the integrated mechanized mining. Mine design of the double-shaft and concentrated in large roadway layout.
In this design, the roadway transportation used 1,200mm belt conveyor transport. Supplementary materials used fixed tub transport. Selection of the main shaft of a 16t skip mentioning coal, belonging cage used to transport personnel and materials.
The Longhu mine ventilation system for the central coordinative, ventilation-out approach.
The design of the Longhu mine with a working face of 330 days every year, the two face up to production, the main shaft coal daily reference to the 16 hours. Mine every four working days and nights, a group of three production ready.
The design of the drainage -150 level design, mine design Longhu a production capacity of / a, Inflow of the largest 250 m3 / h, gushing water for 60 days,