试述钢铁企业烧结余热发电应用

钢铁企业烧结余热发电是一项将烧结废气余热资源转变为电力的节能技术。该技术不产生额外的废气、废渣、粉尘和其它有害气等。文章在阐述其发电原理、特点基础上,重点论述了烧结废气余热发电中双压系统案例,最后得出结论。     

化工企业生产环境中废水、废气处理控制研究——评《化工安全与环保》

正化工行业是我国经济结构中的重要组成部分,高强度的化工业生产带来了大量的工业废水、废气排放。近年来,我国在废水、废气治理方面已经取得了很好的效果,但是在精细化工、石油化工、煤化工等领域,高浓度且难降解的典型化工业废水、废气在实现提效、降耗及安全处理的目标方面仍然面临诸多挑战。在这种条件下,如何保护我们的水资源和大气环境是环境工作者必须认真思考的一个重要问题。《化工安全与环保》一书由温路新、李大成、刘敏和刘军海编著,于2014年9月在科学出版社出版。该书为读者展示了化工废水、废气处理与资源化技术研发与应用的技术进展,帮助读者提升解决工业废水、废气处理等实际问题的能力。该书主要有以下3个特点:1内容全面具体,逻辑框架清晰该书主要介绍了废水、废气处理与资源化的基本单元,即石油化工废水、废气处理工艺及工程应用,精细化工废水、废气处理工艺及工程应用,工业园区废水、废气处理工艺及工程应用,以及其他典型化工行业废水、废气处理     

PH3工业废气治理的研究进展

工业生产中产生的磷化氢(PH3)气体是对人体和环境产生危害的污染物质,同时也是重要的工业原料,在次磷酸钠工业、半导体工业等领域中应用广泛。需对PH3废气进行处置以达到无害化处理和磷资源综合利用的目的。主要综述了工业生产过程中PH3废气的分析方法、处理技术及综合利用,简要介绍了在实验室和现场检测PH3气体的分析方法,综合评述了吸附法、化学氧化法、燃烧法、阻燃剂法等PH3废气的处理方法,最后提出了今后我国PH3废气治理的研究方向。     

粘胶纤维工业废气处理分析

粘胶纤维生产中会产生工业废气,对环境造成一定的污染。本文分析了废气的主要来源和成份构成,并以冷凝法技术为例阐述了两种不同的废气治理技术,供同行参考。     

低温等离子体技术处理废气的研究进展

低温等离子体技术是一个集物理、生物、化学和环境科学于一体的交叉综合性技术,它在处理废气方面具有能耗低、效率高和无二次污染等明显优点。简要介绍了氮氧化物(NO_x)、H_2S和挥发性有机化合物(VOCs)这3种污染气体的来源和危害,及介质阻挡放电法、低温等离子体协同技术和电晕放电法处理废气的原理及其对NO_x、H_2S和VOCs去除效率的影响条件,并展望了低温等离子体技术在废气处理领域的应用。     

PH3工业废气治理的研究进展

工业生产中产生的磷化氢（PH3）气体是对人体和环境产生危害的污染物质，同时也是重要的工业原料，在次磷酸钠工业、半导体工业等领域中应用广泛。需对PH3废气进行处置以达到无害化处理和磷资源综合利用的目的。主要综述了工业生产过程中PH3废气的分析方法、处理技术及综合利用，简要介绍了在实验室和现场检测PH3气体的分析方法，综合...     

VOC废气治理工程技术方案分析

挥发性有机废气(VOC)对人们的生活环境带来十分恶劣的影响,严重威胁到人们的身体健康,因此对VOC废气采取有效的治理技术方案显得尤为重要。该文首先分析了VOC废气的危害,然后探讨了VOC废气治理的技术方案,最后结合实际案例探讨VOC废气治理技术方案的应用,希望以此能够有效促进VOC废气的治理。     

关于印刷行业中有机废气治理技术分析

本文结合我国印刷行业有机物废气污染现状,对我国印刷行业中有机废气治理技术进行分析,并着重介绍活性炭纤维吸附废气处理技术和高效干燥固化工艺以及对有机溶解剂挥发浓度的控制。详细探讨热力氧化法、探讨吸附法、等离子体氧化分解法和膜分离法等有机废气末端治理实用技术,为印刷行业中有机废气的治理提供参考。     

冷轧生产酸再生工艺探讨

介绍了酸洗废液再生处理的几种方法及国内大型钢铁企业目前使用的酸再生系统,分析了酸再生技术的优点,该技术具有很强的使用价值,值得在国内钢铁企业中推广。     

环境除尘在现代化钢厂中的应用

随着经济的发展,我国钢铁工业迅猛发展。钢铁企业的规模不断扩大,固体废物,废气,粉尘颗粒的排量不断增加,环境污染进一步恶化给我们的生存环境带来很大影响。本文介绍了环境除尘系统在京唐球团分厂中的应用,其中对除尘系统的组成,工艺以及重要性做了简要概述,着重介绍除尘输灰系统的自动控制。     

浅析烧结烟气脱硫技术

概述了烧结机烟气脱硫技术现状,简要说明了烧结机烟气的主要特点,并从有效性、经济性、安全性三个角度分析烧结机烟气脱硫技术的选择。表明钢铁企业需结合自身特点,选择最适合的烟气脱硫技术。     

Waste-to-energy technologies in continuous process industries

A range of new waste-to-energy (WtE) technologies in continuous process industries have been analyzed in terms of conversion, energy saving, heat recovery, electricity generation, transportation fuel, storing energy and fuel, environmental emissions, and recycling management. This new group of WtE technologies is an emerging technology group for energy-intensive industries apart from the wide concept of “clean energy technologies”. The current state of WtE technologies has been examined for five representative sectors in continuous industrial processes: iron and steel, cement, primary aluminum production, metal casting, and glass industry. The purpose of the study was to seek synergetic interactions between continuous process industries, with special emphasis on the case of the iron and steel industry. For the purpose of a comparative analysis, waste heat recovery (WHR) technology has been included. A case study in the steel sector is illustrated as a real-world example for solid recovery using WHR in sintering process.     

Utilization of low-grade waste heat-to-energy technologies and policy in Indian industrial sector: a review

This article emphasizes on waste heat recovery for the implementation of organic Rankine cycle technology in the Indian industrial sector. A large proportion of energy is consumed by various industries, which leads to environmental pollution in multiple ways. Since the past few years, research is going on for re-using this low-grade waste energy utilizing organic Rankine cycle technology. In this report, a thorough review has been carried out to find the significant scope for recovering low-grade waste energy, primarily in cement, iron and steel and glass industries. Case studies based on the data collected from the associated plants have also been reported. A summary of different waste heat recovery cycles mechanism and working fluid selection procedure is also included. In the succeeding stage, various technological and legal aspects of using the recovered energy through power grid lines have been discussed. The review sketches a potential scope of using the low-grade waste energy in fulfilling the high energy demand of Indian commercial sector as well as domestic energy industry.     

Materials engineering for a better global environment

The role of materials engineering including ceramics technology for a better global environment is discussed. Present global environmental issues will be solved by resourceful energy technology and waste management under a minimum pollution of environment. The materials technology will play an important role to mitigate the global environmental issues. Research program on future energy technology and waste management should be considered according to a condition of domestic and/or international regulation. Energy saving and domestic waste management including pollution prevention of atmosphere, water and soil are near term research areas. Medium and long term research areas are non-fossil energy technology and global waste management including removal and/or reuse of greenhouse gas CO₂ and nuclear waste management. To mitigate future global environmental issues, traditional materials technology should be reconstructed to build environment benign materials technology which could provide minimum environmental load.     

钢铁企业技术创新研究

为探讨我国钢铁企业应如何进行技术创新,介绍了我国钢铁企业当前相对落后的发展状况,并结合技术创新原理方法,制定了我国钢铁企业的技术创新战略,在此基础上以韩国浦项钢铁公司技术创新的成果为案例,指出技术创新是我国钢铁企业发展的必经之路.     

钢铁企业生产制造执行系统浅谈

随着国家宏观经济调控,基础设施建设投资明显降温,为了在竞争日渐激烈的钢铁市场中站稳脚步,各个钢铁企业纷纷转变生产组织模式,提高产品质量。信息化建设作为钢铁企业建设中新兴的一个环节,在钢铁企业生产中所占的比重也日益提高,本文主要介绍钢铁企业生产制造执行系统,以下简称MEs系统。     

Synthesis and Characterization of Iron-Rich Glass Ceramic Materials:A Model for Steel Industry Waste Reuse

Wastes deriving from steel industry, containing large amounts of iron oxides and heavy metals, when collected in landfills are subjected to atmospheric agents, with consequent release of toxic substances in the soil and groundwater. The reuse of these wastes as raw materials for the production of advanced materials is a viable way both to overcome the environmental impact and to reduce the disposal costs,proposing new technologically advanced materials. This work aims to simulate these interesting glassceramics by using glass cullet coming from recycled municipal waste and high amount of iron(III) oxide(from 25 wt% to 50 wt%), the prevalent component of steel waste. The oxide was mixed with glass cullet and vitrified. The samples composition and the microstructure were investigated by scanning electron microscopy(SEM), and X-ray diffraction(XRD) was used to evaluate the nature of the crystalline phases.The chemical stability of the materials, in terms of ionic release into saline solution, was assessed. The electrical behavior of the samples was also investigated by varying the iron ions content and controlling the crystallization process. It is possible to obtain chemically stable materials with a nearly semiconducting behavior.     

热扩散法镀黄铜丝

广泛应用的氰化物镀黄铜丝,由于产生较多的废水、废气,因而应用受到限制并逐步被淘汰.热扩散法镀黄铜是在硫酸盐等单盐溶液中进行沉积,将两种不同单金属镀层经热扩散而成合金黄铜,实现环保(绿色)电镀.这一工艺可取代传统镀黄铜工艺,用于钢丝、条状钢板等金属材料镀黄铜,质量良好,值得推广.     

Thermal plasma technology for the treatment of wastes: a critical review

This review describes the current status of waste treatment using thermal plasma technology. A comprehensive analysis of the available scientific and technical literature on waste plasma treatment is presented, including the treatment of a variety of hazardous wastes, such as residues from municipal solid waste incineration, slag and dust from steel production, asbestos-containing wastes, health care wastes and organic liquid wastes. The principles of thermal plasma generation and the technologies available are outlined, together with potential applications for plasma vitrified products. There have been continued advances in the application of plasma technology for waste treatment, and this is now a viable alternative to other potential treatment/disposal options. Regulatory, economic and socio-political drivers are promoting adoption of advanced thermal conversion techniques such as thermal plasma technology and these are expected to become increasingly commercially viable in the future.     

电站锅炉烟气余热利用技术方案研究

超临界电站锅炉排烟热损失量很大,对锅炉尾部烟气余热进行回收利用可以有效提高电厂的热经济性,减少煤耗,降低环境污染。目前火电厂最广泛提高烟气余热利用效率的方式是加装低温省煤器装置。对某超临界机组锅炉余热利用技术进行研究,分析不同低温省煤器布置方案,提出采用双级低温省煤器回收电站锅炉余热利用技术方案,即采用低温烟气与低加凝结水换热技术、前置式空气预热器与低温省煤器组合的能源梯级利用方式,实现最优节能及最佳投资收益。