tailieunhanh - Hazards in paper and pulp industries – from an engineering insurance perspective

This paper describes basic characteristics of major production units from a pulp and paper manufacturing plant, focusing on major aspects of risk exposure experienced during construction and operation. Different types of pulp and paper manufacturing processes are presented with particular consideration of risks pertaining to the production stage and pertaining to new technology. Turbines and gas turbines are not handled in this paper due to the fact that these have been presented in earlier IMIA papers. The last chapter is dedicated to some interesting cases of loss. | Hazards in paper and pulp industries - from an engineering insurance perspective. IMIA WGP 49 06 By . Aki Ahonen Ingvar Bodin Milan Dinets Mats Gảdin Felix Staub Thomas Ảstrõm Pohjola Zurich Ingosstrakh If P C Swiss Re Pohjola Chairman Presented at the IMIA Conference in Boston 12 September 2006. 1 Table of Contents WWWWWWWWWWWWWWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMM a aaaaaaaaaaaaaaaaaaaaaaaaaaaa õửõửõửõửõửõửõửõửõửõửõửõửro- -aaaaaaaaaaa aa aaaaaaa aaaaaa aaaaaaaa - - iooo iCTJUi coho- ro k j cororororo- - to -I -r -r -r -r j cororo- -- -- -- - 1 Introduction 4 General trends in the pulp and paper industry in the world. 4 Content of this paper 5 References 6 Technical descriptions and development 6 Pulp 6 Sulphate pulping Kraft pulping 6 .1 Risks related to Kraft pulping 6 . New chemicals for bleaching processes 6 . Size increase of key machinery 7 Sulphite pulping 8 .1 Special risk of sulphite pulping 8 Recycled pulping and deinked pulps 9 Mechanical pulp 9 Energy and chemical recovery 9 Kraft recovery boiler 10 .1 General 10 .2 Description 10 .3 Special considerations 12 .4 Trends in designing new recovery boilers 13 Black liquor gasification combined cycle 14 Paper Machine 14 Paper and board production in general 14 Contemporary technology and trends of paper and board machines 15 .1 Dilution controlled head-box 15 .2 Shoe press 16 .3 Impingement drying 17 Tissue paper production 18 Technical trends and risks in general 19 Environmental aspects 20 Water treatment 20 Air purification 21 References 22 Loss prevention 23 General considerations 23 The most frequently used machine diagnostic methods 23 Critical components 24 Conveyors 24 Chippers 24 Digesters 25 Diffusers 25 Black liquor recovery boiler 26 Boiler fans 28 Lime kiln 29 Steam turbo sets 29 Main transformers 30 0 Paper machine 31 1 Yankee Dryers 31 2 References 32 4 EML PML estimation. 33 Loss scenarios 33 MPL scenario 33 PML scenario 33 Additional helpful information 34 5

• Hoá dầu
• Paper and pulp industries
• Engineering insurance perspective
• Pulp industries
• Paper manufacturing plant
• MIA papers
• Mechanical pulp
• Steam System Opportunity Assessment
• The Pulp and Paper
• Chemical Manufacturing
• Petroleum Refining Industries
• Changing Business
• Finding the Green
• Based Immune
• Cell Homeostasis
• Oxidative Stress
• Health and Disease
• Bael fruit
• Drying characteristics of Bael fruit
• Drying characteristics
• Pulp in mechanical tray dryer
• Mechanical tray dryer
• Determination
• Key Odorants
• Automated Headspace
• Solid Phase
• Micro Extraction
• GC MS Detection