在基于近自然理念矸石山综合治理模式指导下,西铭矿依据当地的气候、土壤及煤矸石火情特点,系统实施全程测温,灭火防复燃,山体整形与植被恢复工程,有效地抑制了矸石山的自燃,同时矿山表层土壤重金属元素含量也明显降低,矸石石山植被得到恢复,西铭矿煤矸石山综合治理模式,对中国中西部矿区煤矸石山治理有一定借鉴和指导意义.

Analyzes the reasons of stucking gangue and blocking sieve in movable sieve jig,puts forward that a-dopting circular arc wave sieve plate instead of straight square hole sieve plate,and the industrial applications compar-ative tests show that use arc -shaped hole sieve bed not only eliminating the production of big material through the sieve,reducing the material quantity through the sieve sharply,eliminating the phenomenon of stucking gangue and blocking sieve mainly,but also increasing the efficiency of coal preparation and reducing the imperfect degree,impro-ving the process effect of movable sieve jig.

In order to solve a rapid reset and seal key technology problems during a mine shaft disaster period,the standby explosion-proof door and rapid reset technology of the mine ventilation shaft was researched and developed.With deformation simulation and impact resist-ance test of the standby explosion-proof door,the results showed that the standby explosion-proof door could hold the max stress of 189 MPa and the max elastic deformation of 32.2 mm.The designed standby explosion-proof door system and the available explosion-proof door would be completely and mutually independent,could rapidly seal and cover the mine shaft head,could play a same function of the previ-ous explosion-proof door and could have a normal ventilation and a reversed ventilation when a gas explosion occurred in the underground mine.There was a moving air door in the standby explosion door system.When twice or more explosions occurred in the underground mine, the air door could be automatically opened and reset to ensure the normal ventilation during the mine disaster period.

In view of problem that traditional double-threshold spectrum sensing algorithm cannot make full use of information of sensing users between two thresholds,the paper proposed a double-threshold spectrum sensing algorithm based on D-S theory.When signal energy received by the sensing users lies between the two thresholds,the algorithm does not give judging result directly but makes local judgment,namely it uses D-S theory to make data fusion.Simulation result shows that detection probability of double-threshold spectrum sensing algorithm based on D-S theory is higher than one of the traditional double-threshold spectrum sensing algorithm,which improves performance of spectrum sensing.

Aiming at the problems of roadway support parameters insufficient in Guandi coal mine,adopt the method of single span underground test,testing research on the geomechanics of affect the bolt support design.Test content including in-situ stress testing,roch mass strength test and observation of rock mass structure,preliminary mastered the basic laws of In-situ stress testing,the intensity of surrounding rock and the essential features of rock mass structure in Guandi,analyzed the test results,improved the rationality and reliability of the supporting design, ensured the safety of project.

通过对西山煤电(集团)有限责任公司屯兰矿地质开采条件的分析,合理选择大采高综采配套设备,提出一次采全高的采煤方法,真正实现降低工人劳动强度、减人提效、提高煤炭资源回采率的目的。

火力发电厂对电煤的指标要求主要是水分、发热量及粘接性指数,古交配煤厂是专为山西兴能发电有限责任公司设计的配套项目.在该厂,使用列车配合堆料机、取料机进行配煤,在全国还是首例.

西曲矿选煤厂2002年12月准备车间除尘器技改更新,重新设计了除尘管路,使用三年来,除尘效果良好,净化效率达到了95%以上.经太原市环保部门检测,除尘器排风口煤尘含量为48 mg/m3,远低于国家规定标准150 mg/m3,符合了ISO 14001国际环境管理体系的要求,同时潜在的社会效益巨大.

介绍了一种胶带裁剥自制工具,比人工使用普通刀具省力、省时,并且胶带接头牢固,胶结强度高。尤其在抢修工作中,省时的特点更为明显。

从设备的前期管理和后期管理,探讨了选煤厂设备的选择、使用、维护、检修和技术更新改造方法和措施.