PLC-PSNC PLC Industrial Process Control for PSNC

6.3.10.- ENVIRONMENT
COMPUTER CONTROLLED GAS FLOW CLASSIFICATION UNIT - PSNC

INNOVATIVE SYSTEMS

The Computer Controlled Gas Flow Classification Unit, "PSNC", is intended to separate solid material mixtures depending on the size of the components through a zigzag gravity classifier. When the process is complete, thin and coarse materials are separated in two different tanks.

See general description

General Description

The Computer Controlled Gas Flow Classification Unit, "PSNC", is intended to separate solid material mixtures depending on the size of the components through a zigzag gravity classifier. When the process is complete, thin and coarse materials are separated in two different tanks.

The unit is divided into sections: a feed tank with a vibrating trough, a zigzag gravity classifier, a fan and a cyclone separator.

The initial solid mixture is introduced into the system through a hopper located on top of a vibrating trough. The trough pours the feed material into a gravity classifier. The trough can be controlled from the computer. The mass flow of solids can be regulated by changing the distance between the hopper and the trough or the vibration frequency. The zigzag gravity classifier has some bends where the compound is separated thanks to air turbulences. When passing through the classifier, thin components flow with air upwards while coarse components fall by gravity. Then, thin components are separated from air through a cyclone separator. The air stream is generated by a fan connected to the conduit and the flow can be controlled from the computer.

There are pressure sensors to control the differential pressure at the inlets and outlets of the gravity classifier and the cyclone. There is also a flow sensor at the conduit air inlet.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

Exercises and guided practices

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. Study of the gas flow classification process and the operation of a zigzag classifier.
  2. Separating thin and coarse material according to the air flow and amount of mixture.
  3. Calculation of the mass balance of the solid material.
  4. Analysis of the separation quality.
  5. Study of the pressure drop in the gas flow classifier.
  6. Study of the pressure drop in the cyclone.
  7. Sensors calibration.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

Practical exercises with optional accessories:

  1. Classification depending on the components rate and the separation size (with the optional accessory MSMB).

Other possibilities to be done with this Unit:

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivative parameters, etc, in real time.
  3. The Computer Control System with SCADA allows a real industrial simulation.
  4. This unit is totally safe as uses mechanical, electrical and electronic, and software safety devices.
  5. This unit can be used for doing applied research.
  6. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  7. Control of the PSNC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the PSNC unit process.
  9. By using PLC-PI additional 19 more exercises can be done.
  10. Several other exercises can be done and designed by the user.

Quality

AFTER-SALES SERVICE

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