Laboratory Atomization

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Laboratory-Atomization

Product Code: ABT006

Laboratory Atomization Manufacturer

Laboratory Atomization

Pilot unit specificities

  • Industrial instrumentation
  • Made of AISI 316L stainless steel and borosilicate glass
  • Rigid process tubing

Principle

  • Drying by atomization consists feeding the liquid to dehydrate in a form of a thin spray to obtain a powdery solid.
  • The solution is injected through an atomisation nozzle, which produce a spray made of very little drops.
  • A very hot air flow evaporates the solvent and carries away the solid powder into a cyclone.
  • The cyclone separates the solid particles from the drying airflow, which goes back outside the pilot unit.
  • The solid is collected at the base of the cyclone in a glass receiver.

Teaching objectives

Experimental possibilities :

  • Atomization of a solution.
  • Influence of the drying air temperature.
  • Influence of the drying air flow rate.
  • Influence of the atomisation air flow rate.
  • Influence of the solution feeding flow rate.

Calculations :

  • Thermal balance.
  • Mass balance.

Technical specifications

Equipment:

  • Feed solution glass flask.
  • Feed solution variable flow rate peristaltic pump.
  • Drying air variable flow rate centrifugal fan, made of steel.
  • Drying hot air tunnel made of AISI 304L stainless steel equipped with a variable power heating resistance.
  • Atomization tower made of borosilicate glass with glass flask receiver.
  • Atomization nozzle with air feeding and jet pump cleaning system using cyclic air.
  • Air – solid separation using a borosilicate glass cyclone with glass flask receiver.
  • Outside pilot unit air duct.

Instrumentation :

  • Feeding air flow rate (located at the cold part) using the differential pressure measurement of an orifice plate and an electronic transducer.
    Atomization air flow rate measurement using a float type flow meter and its adjustment needle valve (nozzle air feeding).
  • Jet pump cleaning solenoid valve of the atomization nozzle.
  • Temperature safety switch of the air heating resistance.

Electric cabinet including :

  • Drying air flow rate indicator.
  • Atomization tower temperature indicator using Pt100 Ω type sensor.
  • Drying air temperature controller.
  • Drying air fan variable speed driver.
  • Solution feeding pump variable speed driver.
  • Jet pump cleaning electronic timer of the atomization nozzle.

Option :

  • Two relative humidity measurement probes of the drying air inlet and outlet with two channel indicator.

Dimensions and weight

  • 1.95 m x 0.7 m x 2.6 m ~ 150 kg.

Essential requirements

  • 400 V / 50 Hz / Three-phase:8 kW.
  • Compressed air, 6 bar:5 Nm3/h
  • Vent system.
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