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;髽I(yè)高危作業(yè)崗位風(fēng)險分級體系研究

發(fā)布時間:2018-03-30 05:38

  本文選題:危化企業(yè) 切入點:高危作業(yè)崗位 出處:《安徽理工大學(xué)》2017年碩士論文


【摘要】:在經(jīng)濟迅速發(fā)展的大環(huán)境下,隨著化學(xué)工業(yè)的蓬勃發(fā)展,;髽I(yè)災(zāi)害事故頻發(fā),且一旦發(fā)生事故,就會造成人員重大傷亡和財產(chǎn)巨大損失,無數(shù)慘痛的教訓(xùn)促使我們對;髽I(yè)的安全問題不斷探索,總結(jié)事故發(fā)生的經(jīng)驗教訓(xùn),得知事故的發(fā)生往往跟作業(yè)崗位存在的風(fēng)險隱患有著很大的關(guān)系。針對這一現(xiàn)象,本文提出;髽I(yè)高危作業(yè)崗位風(fēng)險分級體系的研究及應(yīng)用,為企業(yè)管理人員更方便、準(zhǔn)確地抓住關(guān)鍵控制點提供技術(shù)支撐,從而提高企業(yè)風(fēng)險管理與防控水平。根據(jù)危化企業(yè)高危作業(yè)崗位存在的五種風(fēng)險類型:中毒、窒息;易燃、易爆;腐蝕、灼傷;環(huán)境危害和其他,以及高危作業(yè)崗位的作業(yè)特點和發(fā)生事故的主要特征,分析其存在的風(fēng)險影響.因素,并采用德爾菲法通過問卷調(diào)查表的形式確定風(fēng)險分級指標(biāo);在LEC法的理論基礎(chǔ)上,結(jié)合風(fēng)險的定義,以事故發(fā)生的可能性、事故造成后果的嚴(yán)重程度及人員暴露的頻繁程度三個維度來建立高危作業(yè)崗位風(fēng)險分級模型,從而構(gòu)建了危化企業(yè)高危作業(yè)崗位風(fēng)險分級體系。通過云模型和專家打分法相結(jié)合,確定了風(fēng)險分級各個指標(biāo)的權(quán)重,并進行權(quán)重歸一化,不僅有效地避開了固定權(quán)重值的缺陷,也弱化了專家主觀因素對結(jié)果的影響。風(fēng)險分級的標(biāo)準(zhǔn)通過參考重大危險源分級標(biāo)準(zhǔn)來確定,分為低風(fēng)險、中等風(fēng)險、較高風(fēng)險和高風(fēng)險,基于工程應(yīng)用項目高危作業(yè)崗位各個風(fēng)險分級指標(biāo)的得分和權(quán)重值,計算風(fēng)險指數(shù)值,并確定風(fēng)險等級,然后分析其存在的風(fēng)險隱患并提出相應(yīng)的整改措施。通過對淮南某60萬噸/年聯(lián)堿項目的工程實際應(yīng)用表明,根據(jù)第一次作業(yè)條件下的結(jié)果,在對風(fēng)險較高的作業(yè)崗位采取有針對性的改進措施后,得到第二次作業(yè)條件下各個崗位的風(fēng)險等級,由兩次結(jié)果對比可知,本文提出的方法不僅具有良好的科學(xué)性和合理性,還具有更好的動態(tài)性和可操作性,能夠準(zhǔn)確方便的辨識出高風(fēng)險作業(yè)崗位及其存在的風(fēng)險隱患,對危化企業(yè)管理高危作業(yè)崗位具有一定的指導(dǎo)意義。
[Abstract]:Under the environment of rapid economic development, with the vigorous development of chemical industry, disasters and accidents of dangerous chemical enterprises occur frequently, and once accidents occur, they will cause heavy casualties and huge losses of property. Numerous painful lessons have prompted us to explore the safety problems of dangerous chemical enterprises, sum up the experience and lessons of accidents, and know that accidents often have a great relationship with the hidden risks existing in operational posts. In view of this phenomenon, This paper puts forward the research and application of risk classification system for high-risk jobs in dangerous chemical enterprises, which provides technical support for managers to grasp the critical control points more conveniently and accurately. In order to improve the level of enterprise risk management and prevention and control. According to the five risk types of high-risk operations in dangerous chemical enterprises: poisoning, asphyxiation, flammability, explosive, corrosion, burns, environmental hazards and others, The operational characteristics of high-risk jobs and the main characteristics of accidents are analyzed, and the risk factors are analyzed, and the risk classification index is determined by using the Delphi method in the form of questionnaire. Combined with the definition of risk, the risk classification model of high risk operations is established from three dimensions: the possibility of accident, the severity of accident consequences and the frequency of personnel exposure. By combining cloud model with expert scoring method, the weight of each index of risk classification is determined, and the weight is normalized. It not only effectively avoids the defect of fixed weight value, but also weakens the influence of subjective factors on the result. The criterion of risk classification is determined by referring to the criterion of major risk source classification, which can be divided into low risk and medium risk. High risk and high risk, based on the scores and weights of each risk classification index of high-risk job post in engineering application project, the value of risk index is calculated, and the risk grade is determined. Then, the hidden risks are analyzed and the corresponding rectification measures are put forward. Through the practical application of a 600000 ton / year combined alkali project in Huainan, it is shown that, according to the results of the first operation, After taking targeted improvement measures to the high risk job, the risk grade of each post under the condition of the second operation is obtained. By comparing the two results, we can see that the method proposed in this paper is not only scientific and reasonable. It also has better dynamic and maneuverability, which can identify the high risk job and its hidden danger accurately and conveniently, and has certain guiding significance for the dangerous enterprise to manage the high risk job post.
【學(xué)位授予單位】:安徽理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TQ086

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