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Engineering, Oil and Gas

Transport of Solids: Hydraulic & Pneumatic Conveying




Introduction:

Transport of solids in the form of hydraulic and pneumatic conveying has progressed enormously since its beginning over a century ago. Industries concerned with the processing of particulate solids, have employed hydraulic or pneumatic transport of solids in almost all plants: the examples of catalyst, polymer particles, china, clay, pigments, paints, foodstuffs, etc. In these process industries, the greatest bulk is in the solid-state and almost always in particulate form. In the chemical industry alone, the value of the product formed as particles is greater than 30% of the whole. The handling of particles is very important and often done wastefully from an engineering point of view. Improvements could lead to considerable savings over a wide range of industries.

Because of the complex nature of the interaction between solid particles and intervening, the subject of transport solids in the form of hydraulic transport and pneumatic conveying is difficult and multi-faceted. The entire system is difficult to design and it is even more important to be operated and maintained properly. To decide whether hydraulic or pneumatic transport is a viable solution, it is necessary to know the costs of the entire process including solids preparation, pumping or compressing, pipeline, and solids post-processing. The course is very practical and provides information on materials, equipment, design, operation, maintenance, and troubleshooting

Targeted Groups:

  • Maintenance Engineers
  • Process and Mechanical Technicians
  • Design Engineers
  • Supervisors and Operators
  • Mechanical Engineers

Course Objectives:

At the end of this course the participants will be able to:

  • Learn how to be familiar with different systems for hydraulic transport and pneumatic conveying and their advantages and disadvantages
  • Understand the methods of hydraulic and mechanical design of systems for the transport of solids according to existing world standards and codes
  • Learn how to make optimal selection and sizing of elements of a system for a given industrial application
  • Use the methods of estimating the efficiency of transport systems and the ways to improve the reliability of operation
  • Know the guidelines for accepted maintenance and protection techniques regarding problems in operation, such as corrosion, erosion, abrasion, wear, etc

Targeted Competencies:

  • Principles of selecting the most appropriate means of transport of solids for the given application
  • Guidance for optimum performance and in trouble-free operation
  • Practical real-life examples of how to calculate slurry pipeline or pneumatic piping system
  • Interplay of various influencing design parameters
  • Economical issues: cost and benefit analysis

Course Content:

Unit 1: Main Characteristics of Systems for Transport of Solids:

  • System for hydraulic transport of solids: main features, elements, and components
  • Basics of flow of liquids in pipes: velocity and pressure drop of the flow of mixtures
  • Classification of flow characteristics of common slurries
  • Review of main elements of slurry preparation equipment
  • Other vital components of the hydraulic transport

Unit 2: Pipeline Design Considerations:

  • Selection of pipes, material and diameter based on maximum fluid velocity
  • Detailed calculation of pressure losses in the pipeline
  • Selection and sizing of pumps for hydraulic transport system
  • Handling of difficult slurries
  • After-treatment of transported material

Unit 3: Practical Aspects of System Safe Operation:

  • System design environmental considerations
  • Guidelines for adequate pipeline installation and maintenance
  • Hydraulic system inspection, control, and performance testing
  • Problems with system starting and stopping
  • Methods of pipeline vibration reduction
  • Economic analysis: capital costs and operating costs

Unit 4: Characteristics of Different Types of Pneumatic Conveying Systems:

  • Systems for pneumatic conveying of solids
  • Basics of flow of gases in pipes
  • Sizing of blowers and piping connections
  • Review of main elements of material preparation equipment
  • Selection of pipe material and diameter and design of piping systems

Unit 5: Survey of Equipment and Methods for After Treatment of Transported Material:

  • Material - gas separation
  • After-installation inspection and check-up
  • Receiving and unloading of material, start-up of operation
  • Operational problems and troubleshooting
  • Control and monitoring the system
  • Optimizing and upgrading the existing systems: issue of changing the material