摘要
本设计基于响水煤矿地质条件，设计煤层为2号煤层，采区设计年产量为1.20Mt/a。 采区内2号煤层厚5-6.5m，平均6m，倾角6°-8°，平均7°左右，局部含夹矸，结构较简单、稳定，属于低瓦斯煤层。经计算，采区工业储量3223.16Mt，保护煤柱损失量300.27Mt，设计可采储量2922.89Mt。
根据采区地质条件，提出三个技术上可行的准备方案。方案一：一煤一岩上山；方案二：两条岩石上山；方案三：两条煤层上山。通过技术经济比较，最终确定使用方案二。为保证单个工作面产量达到采区设计生产能力，计算出工作面长度为200m。工作面采用“三八”制作业，两班割煤、一班检修，截深0.6m，每个采煤班割2刀。采用沿空留巷技术，区段间不留煤柱。经计算，采区实际生产能力为1.26Mt/a，服务年限为24.4年。
设计采用综采工艺，采高6m，用全部垮落法处理工作面的采空区，通风方式为U型通风。根据生产技术条件及三机配套原则，确定工作面设备为：采煤机型号MG300-W、液压支架型号ZZ4400/18/38，刮板输送机型号SGZ-764/264。
关键词：2号煤层；采区布置；综采工艺；U型通风；沿空掘巷。
第 1 页
ABSTRACT
This design is based on the xiangshui mine geological conditions, the design of 2 # coal seam of coal seam, the mining area design annual production capacity of 1.20 Mt/a.
Within the mining area no. 2 coal seam thickness of 5-6.5 m, an average of 6 m, 6 ° ~ 8 ° inclination, an average of around 7 °, local containing dirt band, structure is simple, stable, belongs to the low coal seam gas. Through calculation, the mining area industrial reserves 3223.16 Mt, protective coal pillar loss 300.27 Mt, design of recoverable reserves of 2922.89 Mt.
According to the mining geological conditions, the paper puts forward three feasible in technique preparation plan. Solution a: a coal rock up the hill; Scheme 2: two rock up the hill; Solution 3: two coal seam up the hill. Through the technical and economic comparison, finally determined using scheme 2. In order to ensure the production capacity of a single working face production reaches mining area design, calculate the working face length of 200 m. Face adopt \\\manufacturing, two class cut coal, a class of overhaul, and cut 0.6 m deep, each coal class 2 cutter. By adopting the technology of along the empty left lane, section between the coal pillar. By the calculation, the actual mining production capacity of 1.26 Mt/a, length of service is 24.4 years.
6 m design using fully mechanized process, mining height are broken, with the working face goaf caving method, all the data, for the u-shape ventilation ventilation way. According to the production technological conditions and principles of form a complete set of compressors, determine the equipment as follows: the coal mining machine number, hydraulic support model ZZ4400 MG300 - W / 18/38, scraper conveyor type SGZ - 764/264.
Key words: no. 2 coal seam; Mining area layout; Fully mechanized process; U-shaped ventilation; Roadway driving along goaf.
第 2 页
目录
六盘水师范学院矿业工程系课程设计任务书…………………………………………Ⅰ 摘 要……………………………………………………………………………………Ⅲ ABSTRACT…………………………………………………………………………………Ⅳ 目 录……………………………………………………………………………………Ⅴ 第一章 采区地质特征……………………………………………………………………1 1采区概况………………………………………………………………………………1 1.1井田位置及交通 …………………………………………………………………1
1.2地形地貌……………………………………………………………………………2 1.3气象…………………………………………………………………………………2 1.4地表水……… ……………………………………………………………………3 1.5地震…………………………………………………………………………………3 2采区储量计算…………………………………………………………………………3 2.1采区的工业储量及可采储量………………………………………………………3
2.2采区采出率…………………………………………………………………………2 第二章采区巷道布置……………………………………………………………………5 1采区巷道布置初选及可行性方案确定………………………………………………5 1.1采区布置方案………………………………………………………………………5
2.1采区巷道布置………………………………………………………………………5 2确定采区巷道布置的最优方案………………………………………………………8 2.1上山布置……………………………………………………………………………8 2.2区段划分及区段平巷………………………………………………………………9 2.3采区车场及硐室…………………………………………………………………11 第三章 采煤方法、采区生产能力及服务年限………………………………………12 1开采程序………………………………………………………………………………12 1.1开采顺序……………………………………………………………………………12 2采煤方法与采煤工艺…………………………………………………………………12 2.1采煤方法的确定……………………………………………………………………12 2.2采煤工艺方式的确定………………………………………………………………12 2.3回采工艺方式 ……………………………………………………………………12 3采区工作面配备及生产能力验算……………………………………………………13
第 3 页