Unit operation

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How we can characterized the solid particle with refrence to the crushers

1. Fluid flow processes, including fluids transportation, filtration
   Filtration
   
   Filtration is a mechanical or physical operation which is used for the separation of solids from fluids by interposing a medium to fluid flow through which the fluid can pass, but the solids in the fluid are retained....
   , solids fluidization
2. Heat transfer
   Heat transfer
   
   Heat transfer is the transition of thermal energy or simply heat from a hotter object to a cooler object . When an object or fluid is at a different temperature than its thermodynamic system or another object, transfer of thermal energy, also known as heat transfer, or heat exchange, occurs in such a way that the body and the surround...
    processes, including evaporation
   Evaporation
   
   Evaporation is the slow vaporization of a liquid and the reverse of condensation. A type of phase transition, it is the process by which molecules in a liquid State of matter spontaneously become gaseous ....
   , condensation
   Condensation
   
   Condensation is the change of the physical state of aggregation of matter from gaseous phase into liquid phase. When the transition happens from the gaseous phase into the solid phase directly, bypassing the liquid phase the change is called Deposition , which is the opposite of sublimation....
   
3. Mass transfer
   Mass transfer
   
   Mass transfer is the transfer of mass from high concentration to low concentration. The phrase is commonly used in engineering for physical processes that involve molecule and convection transport of atoms and molecules within systems....
    processes, including gas absorption, distillation
   Distillation
   
   Distillation is a method of separation process mixtures based on differences in their Volatility in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction....
   , extraction
   Resource extraction
   
   The related terms resource extraction and resource extraction industry both refer to the practice of locating, acquiring and selling any resource, but typically a natural resource....
   , adsorption
   Adsorption
   
   Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid , forming a film of molecules or atoms ....
   , drying
   Drying
   
   Drying is a mass transfer process resulting in the removal of water moisture or moisture from another solvent, by evaporation from a solid, semi-solid or liquid to end in a solid state....
   
4. Thermodynamic processes, including gas liquefaction, refrigeration
   Refrigeration
   
   Refrigeration is the process of removing heat from an enclosed space, or from a substance, and moving it to a place where it is unobjectionable....
   
5. Mechanical processes, including solids transportation, crushing and pulverization
   Crusher
   
   A crusher is a machine designed to reduce large solid material objects into a smaller volume, or smaller pieces. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials , so that pieces of different composition can...
   , screening and sieving

• Combination (mixing
  Mixing (process engineering)
  
  In industrial process engineering, mixing is a unit operation that involves manipulating a heterogeneous physical system, with the intent to make it more wiktionary:Homogeneous....
  )
• Separation (distillation
  Distillation
  
  Distillation is a method of separation process mixtures based on differences in their Volatility in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction....
  )
• Reaction (chemical reaction
  Chemical reaction
  
  A chemical reaction is a process that always results in the interconversion of chemical substances. The substance or substances initially involved in a chemical reaction are called reactants....
  )

See also

• Distillation Design
  Distillation Design
  
  Distillation Design is a book which provides complete coverage of the design of industrial distillation Distillation columns for the Oil refinery, Chemical plant and petrochemical plants, natural gas processing, pharmaceutical, food and Distilled beverage industries....
  
• Separation process
  Separation process
  
  In chemistry and chemical engineering, a separation process is used to transform a mixture of substances into two or more distinct products. The separated products could differ in chemical properties or some physical property, such as size, or crystal modification or other separation into different components....
  
• Transport Phenomena
  Transport phenomena
  
  In physics, chemistry, biology and engineering, a transport phenomenon is any of various mechanisms by which particles or physical quantity move from one place to another....
  
• Unit Operations of Chemical Engineering
  Unit Operations of Chemical Engineering
  
  Unit Operations of Chemical engineering, first published in 1956, is one of the oldest chemical engineering textbooks still in widespread use....