安全工程专业毕业设计资料

设计总说明

本设计包括两个部分：一般部分和专题部分。

一般部分为吕家坨八矿新井设计，全篇共分为十个部分：矿区概述及地质特征、井田境界及储量、矿井工作制度、设计生产能力及服务年限、井田开拓、准备方式—带区式巷道布置、采煤方法、井下运输、矿井提升、矿井通风与安全和设计矿井主要经济技术指标。

江氏煤业有限公司位于河北省唐山市。矿井平均走向长度约为4.48km，平均倾斜长度约为3.4 km，面积25.86平方公里。本井田内的可采煤层有7层煤、8层煤，厚度分别为3 m、2 m，总厚度为5 m。倾角平均为8度，为缓倾斜中厚煤层。井田内工业储量1.927×108t，可采储量1.4564×108t。

吕家坨八矿年设计生产能力150万t/a，服务年限69年。采用立井单水平上下山的开拓方式：第一水平标高-1230 m。矿井采用走向长壁综合机械化采煤法。

矿井布置一个综采工作面保证全矿井的产量，长度250 m，煤在运输大巷的运输采用皮带运输。矿井的通风方式采用中央并列式通风。

专题部分为煤与瓦斯共采技术研究。

煤与瓦斯共采是为解决我国煤层瓦斯赋存的低压力、低渗透性和低饱和性等特点导致的开采难题而提出的新技术体系, 其目的是实现煤炭与瓦斯双能源的共同开采。文章在介绍煤与瓦斯共采技术体系的基础上, 分析了煤与瓦斯共采技术体系的核心问题, 指出了实现煤与瓦斯共采需要解决的三大关键理论问题, 并简要介绍了国内煤与瓦斯共采研究领域取得的主要成果,最后对煤与瓦斯共采技术体系的前景进行了展望。

关键词：开拓方式；立井；两水平；走向长壁；综采；采区式；煤与瓦斯共采；关键理论问题；研究现状

he Brief Introduction of the Design The design includes two parts : the general part and special subject part.

The general part is a new design for lvjiatuo mine, the text is divided into 10 sections : Overview of mine and geological features, Mine realm and reserves, mine system design and production, mine exploration, mining area roadway layout, mining method, Underground transport, upgrading mine, and mine ventilation and mine safety technology major economic indicators.

The lvjiatuo coalfield locates in the city of tangshan in hebei Province. The average strike length of the coalfield is 4.48 km. The inclination length of the coalfield is 3.4 km with an area of 25.86 square kilometers. There are two coal seams in this coalfield, No.7 coal seam, No.8 down coal seam . Their thickness are 3 m、2 m and the total thickness is 5 m. The average angle is 8 degrees, belongs to gently inclined medium thickness seam. The industrial reserve is 192 Mt, the workable reserve is 145Mt.

The annual design production capacity of lvjiatuo mine is 1.5Mt/a and the service life is 69 years. Using vertical two levels of extending the deep dark mining exploitation: the first level elevation, the upper -850 m on stage; The second level elevation, vertical -1500 m high blast-caused stage. Using to longwall mine coal comprehensive mechanized.

It make a fully mechanized coal face to meet the whole mine production, the coal face is 250m, the transport equipment in the main entry is conveyor of belt.The Mine ventilation mode adopted the mining district type.

The special part is Research of coal and gas co- mining.

Techno logy system of coal and gas co- mining is proposed in order to solve the mining issues caused by the characteristics o f coal seam gas, such as low pressure, low permeability and low saturation, whose purpose is to achieve the common mining o f coal and gas1 Its key issue is analyzed on the based of introduction of coal and gas co- mining techno logy system, and the three major theoretical issues need to be solved is proposed in this paper1M ain achievements o f coal and gas co- mining is introduced in briefly, Application prospects o f coal and gas co- mining techno logy system is forecast.

Keywords：Pioneering way; vertical shaft ; Two levels; The long wall; Mechanized; Mining district type; coal and g as co-mining; key theoretical issue; research status