景矿佛洼分区120万吨矿井初步设计

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原文档由会员 bmszsx 发布

采矿工程毕业设计,景矿佛洼分区120万吨矿井初步设计

摘  要

阳泉煤业集团有限责任公司新景矿(以下简称新景矿)是由原阳泉三矿的一期改扩建新增井田部分(西部区)与三矿竖井重新组建的矿井。
佛洼分区位于新景矿的西南部,东部以y=86600与芦湖南、芦湖北分区为界,西部以y=82000与规划中的七里河井田为界,北部以x=103000与新景矿北条带为界,西南部为保安煤矿,南部隔桃河为阳煤集团二矿,分区东西长4600m,南北宽平均3200m,面积为14.76km2。主要可采煤层有3号、8号、15号煤。我设计佛洼南条带15号煤,煤层倾角小,小于12°,该煤层东部、北部厚度大.煤层平均厚度为5.73米。该分区东部与芦湖南、芦湖北分区相邻,靠东部约一半区域地质勘探程度较高、构造相对简单;靠西部约一半区域勘探程度较低,大部分为C级储量。 
目前佛洼分区正处于开拓阶段,由于15号煤煤层较深,平均深度在+350水平,我计划采用双立井开采,开采轨道大巷、运输大巷、回风大巷均在+350水平布置,由于煤层倾角小,构造稳定,采用带区开采掘进减少,分为四个条带。经计算三量一个工作面和一个掘进面就满足生产要求,工作面长度为200米,倾斜长度为2200米,工作面采用综合机械化放顶煤开采,采用三班开采一班检修,一班割两刀煤放一次顶,作为一次循环。
佛洼分区设计生产能力为1.2Mt/a。采用一次设计、一次建成投产的移交方式。
设计在井田中部佛洼新建一进回风立井。进风立井装备梯子间、排水管、压风管、消防洒水管以及动力电缆等,为进风井兼安全出口;回风立井为专用回风井。形成佛洼风井除提升之外相对独立的供电、通风、排水、压风等系统。
井下主运输采用胶带输送机,可实现从佛洼分区到芦湖南分区直至地面胶带输送机一条龙连续运输,用人少、效率高、故障率低、安全性好,有利于实现集中自动化控制与管理。辅助运输采用无极绳连续牵引绞车牵引1.0t系列矿车运输,可以保证本区辅助运输的连续性。主辅运输的连续性为新景矿的高产高效提供了有利条件。
矿井采用中央并列式通风,由于该矿为高瓦斯矿井,全矿井瓦斯绝对涌出量为44.4 m3/min,光靠通风满足不了通风要求,需要提前进行瓦斯抽放,采用外错尾巷和倾向高抽巷进行提前抽放。
佛洼风井工业场地总平面布置,充分结合地形的特点,因地制宜地布置在三个台阶上,场地布置紧凑而合理,场地运输环节简单,土方工程量较少。
本矿井煤层瓦斯含量高、生产能力大,生产中应加强通风系统和瓦斯抽放系统的管理、检测和调整工作,以保证矿井安全生产。

关键词 : 一次采全高放顶煤   中央并列式通风   立井开拓

   
Abstract

     Yangquan Coal Industry Group Co., Ltd. The new King Mine (hereinafter referred to as the new King Mine) is a former three-Yangquan mine add an expansion Waida part (west) and three mine shafts of the mine re-established. 
Buddhist wa ore district is located in the south-west of the new King, in the eastern part of y = 86600 and Lu Hunan, Hubei Lu district is bounded to the west and y = 82000 Qilihe planned for the mine sector, in the northern part of the new x = 103000 King Mine strip bounded by the north, the south-west coal mine for the security, every other southern Taohe Yangquan Coal Industry Group for the second mine, area from east to west 4600m, the average North-South width 3200m, an area of 14.76km2. Main coal seam 3, 8, 15, of coal. I designed the Buddha depression on the 15th strip south of coal, coal seam dip small, less than 12 °, the eastern part of the coal seam, the thickness of the northern Great. Seam thickness of 5.73 meters on average. And Lu in the eastern district of Hunan, Hubei Lu adjacent district, on the eastern half of the regional geological survey of about a higher degree of relatively simple structure; on about half of the western region with less exploration, most of C-class reserves. 
At present, the Buddha is in the district to develop depression stage, 
on the 15th as a result of the deeper coal seams, with an average depth in the +350 level, I plan to dual-shaft mining, the exploitation of the track roadway, transportation roadway, roadway back to the wind in the level of +350 layout, as the seam angle small, structural stability of the exploitation of driving with a reduction in area, divided into four bands. By calculating the volume of a three-face and a driving surface on the production requirements to meet, face length of 150 meters, tilt length of 2200 meters, take the entire face using a high-level caving mining, the exploitation of a group of three maintenance intervals two cycle twice a top coal caving. 
Dover district sunken design production capacity of 1.2Mt / a.
The design of the Buddha in the central depression Waida a new shaft into the return air. Equipped with a ladder into the air shaft, the drainage pipes, duct pressure, fire sprinkler pipe and power cables for safety into the ventilation shaft and exports; return air shaft ventilation shaft for the dedicated back. Buddha depression formed in addition to upgrade the ventilation shaft outside the relatively independent power supply, ventilation, drainage, wind and other pressure systems. 
The use of underground main transport belt conveyor can be realized from the Dover district sunken into the ground until Lo Hunan district one-stop conveyor belt for transport, use less, high efficiency, low f
ailure rate, safety, and is conducive to centralized automatic control and management. Auxiliary transport used for traction winch rope wuji 1.0t Series tramcar traction transport, supporting in this area can guarantee the continuity of transportation. The continuity of primary and secondary transport ore for the new King of the high yield and efficiency have provided favorable conditions. 
Central parallel mine ventilation, mine is due to high gas mine, all mine into an absolute gas emission for the 44.4 m3/min, ventilation alone can not meet the requirements of ventilation, exhaust gas needs in advance, using the outside lane and toward the end of Lane advanced to the high drainage pumping. 
Buddha air shaft depression general layout of industrial facilities, fully integrated feature of the terrain, according to local conditions in the three steps of layout, site layout and reasonably compact, space transportation simple, low earthworks. 
Coal mine gas of the high production capacity, and production should increase the ventilation system and gas drainage system management, detect and adjust its work to ensure that mine safety in production. 

Key words: first-wide adoption of high-level caving central ventilation shaft to open up side by side
     



目  录

第一章  矿井概述和井田地质特征 1
第一节  矿井概述 1
第二节  井田地质特征 2
第三节  煤层的埋藏特征 3
第二章  井田境界与储量 6
第一节  井田边界 6
第二节  地质储量计算 6
第三节  可采储量计算 6
第三章  矿井工作制度生产能力及服务年限 8
第一节  矿井的工作制度 8
第二节  矿井生产能力及服务年限 8
第四章  井田开拓 9
第一节  井田开拓方式的确定 9
第二节  达到生产能力时工作面的配备 11
第五章  矿井基本巷道及建井计划 13
第一节  井筒石门与大巷 13
第二节  井底车场 14
第六章  采煤方法 15
第一节  采煤方法的选择 15
第二节  确定采(盘)区巷道布置和要素 15
第三节  回采工艺和劳动组织 16
第四节  带区的准备与接替 23
第七章  井下运输 25
第一节  概述 25
第二节  运输设备的选择和计算 26
第八章  矿井提升 31
第一节  矿井提升概述 31
第二节  主副井提升 31
第九章  矿井通风与安全 34
第一节  风量的计算 34
第二节  矿井通风系统和风量分配 38
第三节  计算负压及等积孔 40
第四节  选取扇风机 44
第五节  安全生产技术措施 47
第十章  经济部分 50
第一节  矿井设计概算 50
第二节  劳动定员和劳动生产率 52
第三节  原煤生产成本 54
第四节  主要技术经济指标 55
参考文献 59
致    谢 60

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