Dissertation > Excellent graduate degree dissertation topics show

Pre-oxidized polyacrylonitrile - based carbon fibers fluidization equipment and technology research

Author: GaoXuePing
Tutor: ZhuBo
School: Shandong University
Course: Materials Science
Keywords: fluidization technology preoxidation furnace preoxidation time PAN based carbon fiber
CLC: TQ342.3
Type: Master's thesis
Year: 2006
Downloads: 277
Quote: 0
Read: Download Dissertation

Abstract


The preoxidation actuality of PAN based carbon fiber was firstly analyzed in this paper. In order to resolve the present shortcomings of preoxidation during carbon fiber production process such as preoxidation technology taking too much time, lower production volume and higher energy consumption etc, we designed a new type of fluidized preoxidation furnace by adopting fluidization technology and studied the fluidized preoxidation feasibility of PAN based carbon fiber. Fluidized preoxidation belongs to fluidized heat treatment technology, also has the excellence of high efficiency of mass transfer, heat transfer and energy saving. The new furnace and technology succeed in shortening preoxidation time, improving production efficiency of carbon fiber, and reducing energy consumption.According to the preoxidation character of PAN based carbon fiber and considering the features of structure design of fluidized bed, design method and demand for key parts was introduced and analyzed in this paper. The key parts such as structure of furnace, gas distributing system, gas offering and airproof system, the ratio of height to diameter of hearth, power of furnace and energy saving set etc, were designed and computed in detail. Several fluidized preoxidation furnaces have been also manufactured. According to the demand of actual pipeline distribution and pressure of gas offering, roots blower was adopted. In order to avoid polluting the surface of fiber, an equipment for removing hot particles was designed in particular. To ensure gas temperature and temperature uniformity, hot wind furnace was designed. And hot gas circulation system was designed to save energy. Practical operations showed that the furnace possesses characteristics of high efficiency of mass transfer and heat transfer, rapidly rising temperature rate, good temperature uniformity, high temperature controlling precision which error is less ±2℃, and good efficiency of saving energyconsumption.The fluidized preoxidation system of PAN based carbon fiber was controlled by computer that adopted distributed controlling system. The system has the function

Related Dissertations

  1. Mechanism of Weak-link Inducement and Restraint for PAN-Base Carbon Fibres in Formation and Surface Treatment,TQ340.6
  2. Properties and Application Research of Multi-Antibacterial Polyamide Fibers,TQ342.1
  3. Preparationandapplication of Pan-Based Amphoteric Ion Exchange Fiber,TQ342.31
  4. The Study on the Creep Resistance Property of Ultra-High Molecular Weight Polyethylene Fiber,TQ342.61
  5. Study on Preparing the High Performance Fiber and Nonaporous Fiber by High Viscosity Nylon-6,TQ342
  6. Preparationandapplication of the Strong Alkali Anion Exchange Fiber Based the Polyethylene,TQ342.84
  7. Study on UV Accelerated Aging and Lifetime Prediction of Pet Fibres,TQ342.2
  8. Study on Catalytic Graphitization of Carbon Fibers with Alloy Coating,TQ342.742
  9. The Structural Design and Experimental Research on Kilometer Pitch Carbon Fiber Roll-up System,TQ342.742
  10. Antibacterial deodorant polyester fiber,TQ342.2
  11. The Research of the Chemical Structure and the Temperature Dependence During the PAN Fiber Stabilization Process,TQ342.31
  12. Electrospinning of Poly (Phthalazinone Ether Sulfone Ketone) and Its Reinforcement Modification,TQ342.7
  13. Engineering Simulation of Melt Direct Spinning Fine Denier Polyester Filament,TQ342.2
  14. The Influence of Precursor Modification on the Structure and Properties of Carbon Fiber,TQ342.742
  15. Catalytic Graphitization of PAN-based Carbon Fibers Treated by Alternate Electrolysis,TQ342.742
  16. Preparing and Structure and Properties of Silk/Synthetic Fibre Heteromorphosis Fibre,TQ342.95
  17. Preparation and Properties Research of Lignin-phenol-formaldehyde Based Macroporous Activated Carbon Fiber,TQ342.742
  18. Study on Ultrafine-CaCO3/PP Composite Fiber,TQ342.62
  19. Study on the Inter Relationship of Polyacrylonitrile Precursor to Improvement of Technology on the Steam Drafting,TQ342.31
  20. The Prepatation of Bio-Philic Carbon Fiber and Its Effects Evaluation,TQ342.742
  21. The Research of Polyphenylene Sulfide FDY Preparation Technology and Performance,TQ342
  22. The Research of Bag with PPS-ATY Processing Technology and Its Structural Performance,TQ342.73

CLC: > Industrial Technology > Chemical Industry > The chemical fiber industry > Synthetic fiber > Polyacrylonitrile Department of fibers
© 2012 www.DissertationTopic.Net  Mobile