金属化工容器检验中不安全因素的分析与应对

在化工生产过程中,金属容器是必不可少的设备之一,因金属容器本身就有一定的使用寿命,所以在生产过程中,要对金属化工容器进行定期检验,便可有效的排除化工企业安全生产中的不安全因素,保障生产顺利进行和员工的人身安全。本文通过对金属化工容器检验中存在的不安全因素进行分析,并对检验方案进行探讨,进一步阐述了金属化工容器在定期检验中的安全策略。

某金属化工企业华南地区的仓库选址策略

文章提出基于客户满意度并应用层次分析法选址决策算法,运用定性和定量分析的方法求得模型的解,以求符合企业战略发展的物流解决方案,从而为企业在激烈竞争的市场环境中更多的提高企业市场竞争力。

金属化工容器检验中不安全因素及管理策略

众所周知,在化工生产过程当中必须使用金属容器,而随着使用年限的增加,金属容器的寿命会慢慢降低。所以,无论何时实施生产,都必须对金属化工容器实施相应的检验,合理的排除一些生产的不安全因素,继而很好的保护生产人员的健康和生产的可持续进行。因此,本文以兰州新区化工企业为例,根据校企合作课证融合核心课程体系,了解化工容器安全作业的知识和技能,针对近些年来关于金属化工容器检验的研究进行分析以及总结,确定其不确定因素并给出合理的管理策略,希望能为后续国内化工生产工作的开展提供些许参考。

金属化工容器检验中安全风险及应对策略

随着化工产业的快速发展,金属化工容器在存储、运输和处理化学物质中扮演着关键的角色。为确保工作环境的安全和避免潜在的风险,对这些容器进行定期检验变得至关重要。然而,在检验过程中会遇到各种风险,包括设备老化、腐蚀、压力与温度的异常变化等。此外,不当的检验方法或操作失误也会导致安全隐患。因此,对金属化工容器的检验风险进行全面的研究,并提出有效的应对策略,是确保化工行业可持续安全发展的关键。

金属化工容器检测中不安全因素的研究与对策

化工容器因为其也具有一定的化学性质,在使用过程中难免会受到化学药品的影响,且其寿命有限,在生产过程中出现损毁的话,就会带来严重的后果,因此必须对其进行周期性检测,及时掌握化工容器的情况,采取有效措施对容器中不安全因素进行清除,消除安全隐患,确保容器的安全使用。本文将从化工容器分类、特性入手,从不同角度分析化工容器检测过程中存在的不安全因素,并提出相应的解决对策。

金属化工容器检验中不安全因素及管理策略

金属化工容器在工业生产中扮演着重要的角色,旨在用于储存和运输危险化学品和液体。然而,这些容器的检验过程存在一系列潜在的不安全因素,可能导致事故、质量问题和环境污染。这些不安全因素包括人为因素,如操作人员技能不足、设备维护不当以及环境因素,如恶劣气候条件。此外,法规和合规性问题也在金属化工容器检验中引发了关注,因为不合规可能会导致法律后果和经济损失。因此,本研究的主要目的是深入探讨金属化工容器检验中存在的不安全因素,并提出有效的管理策略,以减少安全风险、提高质量和生产效率。

石油化工金属管道安装工程施工技术要点及质量控制研究

作为全球经济重要支柱产业之一的石油化工产业,在社会发展过程中一直以来都扮演着至关重要的角色。随着我国社会现代化发展速度不断加快,石油化工领域的发展规模也在不断扩大,多种先进技术被应用到石油化工生产中。石油化工管道作为石油化工生产不可或缺的一部,主要用于石油化工生产装置及辅助设施中输送毒性、可燃与无毒非可燃性气体、液体介质。由于石油化工管道输送介质的特殊性,石油化工管道安装工程施工及质量控制尤为重要,在具体施工过程中,要明确施工重点及要点,编制有针对性的、可行的施工方案并形成相应的质量控制方案,这样才能使石油化工管道系统在后续生产使用过程中出现质量问题的可能性得到有效控制。当前来看,石油化工管道安装工程施工质量明显提高,管道材料种类也呈现出多样化,例如涂塑钢管、保温钢管、无缝钢管、螺旋钢管等都在当前石油化工管道安装工程施工中有所应用,本文仅针对石油化工金属管道安装工程施工技术要点及质量控制措施进行了分析。

化工金属管道安装过程及质量控制系统

就石油化工管道的安设而言,管道的装配程序与质量控制无一不是重要的工程,所以对此开展进一步研究十分需要。目前,化工管道的安设过程还存在很多问题,比如环境问题、材料问题、工程动工问题等,在工事中要想真正确保石油管道的质量,就必需知晓安设过程及质量控制中呈现的各类问题,且对此要针对地采用管控措施,以免出现非专业化的操作,进而确保石油管道可以连续且正常地运转。所以,主要分析了石油化工管道安设中的普遍问题及质量管控,希望能对化工金属管道安装程序及质量控制起到一定的指导作用。

化工金属管道的腐蚀及防腐对策

化工金属管道作为一种重要的运输方式,极易受到外部因素影响,发生腐蚀现象,影响正常运输。因此为保证化工产品的运输,首先对发生腐蚀的机理进行了研究,然后针对各种腐蚀提出了相应的解决措施,以期保护化工金属管道。

化工金属管道安装过程及质量控制系统分析

在安装化工管道的过程中,最重要的工程就是管道程序的装配以及对于管道质量的把控,因此,应该加强对化工金属管道过程和质量控制的研究力度。到目前为止,我国在安设化工金属管道的过程中依然存在着许多问题,所以文章对化工金属管道安装过程中存在的问题进行了分析,并且提出了相关解决措施,希望能够提高化工金属管道的安装质量。

化工金属管道安装过程及质量控制系统分析

伴随在深度冷藏、易燃易爆、有毒物质以及强腐蚀性等特殊物体或者气体类运输过程中压力管道的应用范围越加广泛,同时由于社会对压力管道安装要求的不断提高,导致对压力管道安装质量的控制工作进行必要研究具备非常大的实际意义。基于此,提出化工金属管道安装过程及质量控制系统分析。化工金属管道安装过程包括焊接工艺卡制定、阀门安装、管道试压及气密性试验。同时对化工金属管道安装的质量控制系统的硬件和软件构造进行分析。从实验结果中可以看出,本文设计的质量控制系统与传统系统合集相比,其控制力把控的精确度很高,且控制范围很广。实验证明,本文系统设计具有极高的有效性。

金属管道的腐蚀及防腐对策

随着我国的经济水平飞速增长,城市化进程也不断加快,而为了提升人们的居住环境整洁程度,保证人们的生活质量,我国在城市规划中将人们生活中所需要用到的天然气、电线电缆、光纤等都集中在金属管道中并埋设在地表下的土壤中。但由于城市地下环境较为复杂,除了阴暗潮湿外,还有大小供水管道,排污管道、排水管道等,再加之管道自身的磨损老化,使得管道所面临的被腐蚀威胁较大,并且一旦管道因被腐蚀发生破裂损坏,所造成的后果将不堪设想。因此,如何对化工金属管道最好防腐对策成为当下所要重点研究的对象。

关于土壤重金属污染及防治措施

土壤重金属污染可影响农作物产量和质量的下降，并可通过食物链危害人类的健康，也可以导致大气和水环境质量的进一步恶化。因此引起世界各国的广泛重视。因而如何有效地控制及治理土壤重金属的污染，改良土壤质量，将成为生态环境保护工作中十分重要的一项内容。

Effect of Elastic Strains on Adsorption Energies of C,H and O on Transition Metal Oxides

Platinum(Pt)-based noble metal catalysts(PGMs)are the most widely used commercial catalysts,but they have the problems of high cost,low reserves,and susceptibility to small-molecule toxicity.Transition metal oxides(TMOs)are regarded as potential substitutes for PGMs because of their stability in oxidizing environments and excellent catalytic performance.In this study,comprehensive investigation into the influence of elastic strains on the adsorption energies of carbon(C),hydrogen(H)and oxygen(O)on TMOs was conducted.Based on density functional theory(DFT)calculations,these effects in both tetragonal structures(PtO_(2),PdO_(2))and hexagonal structures(ZnO,CdO),along with their respective transition metals were systematically explored.It was identified that the optimal adsorption sites on metal oxides pinpointed the top of oxygen or the top of metal atom,while face-centered cubic(FCC)and hexagonal close-packed(HCP)holes were preferred for the transition metals.Furthermore,under the influence of elastic strains,the results demonstrated significant disparities in the adsorption energies of H and O between oxides and transition metals.Despite these differences,the effect of elastic strains on the adsorption energies of C,H and O on TMOs mirrored those on transition metals:adsorption energies increased under compressive strains,indicating weaker adsorption,and decreased under tension strains,indicating stronger adsorption.This behavior was rationalized based on the d-band model for adsorption atop a metallic atom or the p-band model for adsorption atop an oxygen atom.Consequently,elastic strains present a promising avenue for tailoring the catalytic properties of TMOs.

Vapor pressure measurement of lead and lead chlorides in FeO_T-CaO-SiO_2-Al_2O_3 system

Vapor pressure of lead and lead chlorides from FeOT？CaO？SiO2？Al2O3 slag system was measured by using Knudsen effusion method. The results suggest that the vapor pressures of lead and lead chlorides increase with increasing temperature. For the slag systems without chlorine, the logarithm of vapor pressure （lnp） shows highly linear dependency on the reciprocal of temperature （1/T）, and higher vapor pressure is observed in the condition where more metallic lead vapor is formed. In this case, the vapor pressure of lead increases with increasing slag basicity （w（CaO）/w（SiO2））, increasing FeO content andw（Fe2＋）/w（Fe3＋） ratio. For the case of slag system with chlorine addition, the total pressures of PbCl2 and PbCl increase with decreasing basicity and FeO content of slag.

Toluene Oxyfunctionalization with Air over Metalloporphyrins and Reaction Condition Optimization

Catalytic activities of a series of metalloporphyrin complexes in selective aerobic oxidation of toluene were investigated.The effects of different central metal ions in metalloporphyrins[T(p-Cl)PPMCl(M=Fe,Co,Mn,Cu)] on the reaction course had been examined and it was found that T(p-Cl)PPCu presented the highest catalytic activ- ity in the reaction.The reaction conditions of toluene oxidation were optimized by using orthogonal experiment de- sign.Five relevant factors were investigated:temperature,air pressure,catalyst loading,air flow rate and reaction time.The effects of the five factors on both toluene conversion and total yield of benzaldehyde and benzyl alcohol were discussed.The research results showed that the reaction temperature was the most significant factor influenc- ing toluene oxidation.On the basis of the margin analysis,the optimum conditions for the toluene conversion and the total yield of benzaldehyde and benzyl alcohol respectively were achieved,under which the toluene conversion was up to 14.67%and the total yield of benzaldehyde and benzyl alcohol reached 5.89%.

Study on an Integrated Sintered Metal Screen Moving Granular Bed Filter

A new gas clean-up process called 'integrated sintered metal screen moving granular bed' (ISMSMGB) for the integrated gasification combined cycle (IGCC) and pressured fluidized bed combustion (PFBC) was developed on the basis of a sintered metal candle filter and a cross-flow moving granular bed filter. This is a combination of the surface and deep bed filtering processes. A set of facilities was established and a series of cold model tests were carried out. The dust removal efficiency and the pressure drop of the filter were measured and analyzed. The results show that this process features the advantages of the moving bed for high capacity as well as high inlet dust load and the surface filter for high efficiency. Meanwhile, the granules moving downward cleans the cake on the screen surface, so that the system is operated at steady state.

Parameter optimization model in electrical discharge machining process

Electrical discharge machining (EDM) process, at present is still an experience process, wherein selected parameters are often far from the optimum, and at the same time selecting optimization parameters is costly and time consuming. In this paper, artificial neural network (ANN) and genetic algorithm (GA) are used together to establish the parameter optimization model. An ANN model which adapts Levenberg-Marquardt algorithm has been set up to represent the relationship between material removal rate (MRR) and input parameters, and GA is used to optimize parameters, so that optimization results are obtained. The model is shown to be effective, and MRR is improved using optimized machining parameters.

Separation of sulfide lead-zinc-silver ore under low alkalinity condition

A complex lead-zinc-silver sulfide ore containing 2.98% Pb, 6.49% Zn and 116.32×10^-4 % Ag （mass fraction） from Yunnan Province, China, was subjected to this work. Research on mineral processing was conducted according to the properties of the lead-zinc-silver ore. Under low alkalinity condition, the lead minerals are successfully separated from the zinc minerals with new reagent YZN as zinc depressant, new reagent BPB as lead collector, CuSO4 as zinc activator and ethyl xanthate as zinc collector. The associated silver is mostly concentrated to the lead concentrate. With the process utilized in this work, a lead concentrate of 51.90% Pb with a recovery of 82.34% and a zinc concentrate of 56.96% Zn with a recovery of 81.98% are produced. The silver recovery in the lead concentrate is 80.61%. Interactions of flotation reagents with minerals were investigated, of which the results indicate that the presence of proper amount of Na2S can precipitate Pb^2＋ and has a sulfidation on oxidized lead minerals. The results also show that NazCO3 and YZN used together as combined depressants for sphalerite can signally improve the depressing effect of new reagent YZN on sphalerite.

Effect of Metal Contamination on the Performance of Catalyst for Deep Catalytic Cracking Process

The effect of different metal contamination levels of catalysts for Deep Catalytic Cracking(DCC) on the distribution and selectivity of DCC products was investigated in a FCC pilot unit. The pilot test results showed that the effects of the metal contamination level of catalyst on the propylene yield,the coke yield,the LPG yield,the gasoline yield,the selectivity of low carbon olefins,and coke selectivity was significant,and that the influence of metal contamination level on the conversion and dry gas yield was minor.