云冈选煤厂排污池自动排水控制系统应用实践

为了提高排污泵的自动化程度,防止电机因污泥收集坑溢水而出现连电烧机事故,降低作业人员劳动强度,改善作业环境,提高洗煤厂的生产效率。通过对云冈矿洗煤厂浓缩车间污泥收集坑排污泵进行自动化控制系统改造,在污泥收集坑设备高低2个液面传感器和接地线,采用继电器控制原理控制排污泵启停,并实现排污泵运行异常报警。通过1 a的现场应用,排污泵自动控制系统运行良好,未出现故障,保障了设备的安全运行,提高了生产效率,取得了良好的经济效益,创效621万元。

陆上油气田废钻井液排污池替代方案

针对国内陆上油气田采用排污池处理废弃钻井液存在的资源、环境等多方面问题,借鉴国外先进废钻井液处理方案,通过采取优化钻井工艺设计、钻屑干燥、闭路系统、中心废物处理、钻井液全面管理及回收再利用等综合措施,减少了废钻井液的排放量,环境效益和经济效益显著,能够有效促进钻井工业环境友好可持续发展。

设计一种防止回火的水封装置

为更加深入落实新安全生产法,确保站内安全生产,对西气东输集气站排污池存在的回火安全隐患进行了分析。依据国家相关标准设计计算,通过实验验证介质在不同工况下的安全性,并在采集了凝液回收区各类生产数据后,最终设计了水封装置。

Incinerability Index of Municipal Solid Waste and Its Correlation with Carbon Monoxide and Nitrogen Oxides Emissions

The main objective of this study was to establish optimal incineration conditions through the analysis of pollutant formation mechanisms involved in the combustion process of a retort incinerator. Calorific values of several types of municipal solid wastes were determined and related to specific incinerability indexes. The incinerability testing concerning this study was conducted on residues with an incinerability index （II） of 123. The samples were tested under different conditions： with and without chamber preheating, varying the percentage of inlet air （25, 50 and 75% of the system capacity）, measuring the temperatures of the primary and secondary chambers, and gauging the CO and NO stack emissions with an electrochemical cell. With comparative purposes in mind, samples with indexes ofI = 112, I = 123, I = 130 and I = 132 were also tested to assess the influence of the II on pollutant emissions.