TROMMEL APPARATUS

Product Description

Trommel or revolving screensconsists of a cylindrical screen rotated about its axis. Simple Trommel may bearranged in series with oversize of the first passing to the second Trommel andthe oversize of the second passing to the third, etc.

They are quite efficient forcoarse sizes. The inclination of Trommel varies depending on the nature ofmaterial to be processed. The present Trommel is built with screens ofdifferent sizes throughout their length, the feed entering at the end of thefinest screen. In this way it is possible to collect materials of differentsize range from a single Trommel.

Drive to the central shaft isgiven through a variable speed motor coupled to reduction gearbox.

Drive is provided for conductingthe experiment at varying speed. Set-up is complete in all respect with guards,bins and control panel. A special arrangement to change the angle ofinclination of the Trommel is made.

Experimentation/learningobjectives:

To calculate the separationefficiency.

To study the effect of speed onseparation efficiency.

To study the effect of changingthe angle of inclination and RPM

Utilities required:

Electric Supply: Single phase,220 V AC, 50 Hz, 5-15 amp combined socket with earth connection. Earthconnection should be less than 5 volts.

Raw Material for Feed.

Floor Area: 2 m x 1 m.

Electronic Weighing Balance:capacity 2 Kg (least count 1 gm)

Technical details:

Trommel: Dia. 200-mm, Length1000-mm (approx.)

Sieves: 3 Nos. of different meshsize.

Drive: Variable Speed Motor andDrive speed coupled with reduction gear box.

Feed Hopper: Compatible Capacity.

Collecting bins: 4 Nos. ofsuitable capacity.

Control panel Comprises of : RPMMeasurement : Non-Contact type Proximity sensor with Digital RPM IndicatorStandard make On/Off switch, Mains Indicator etc.

Special arrangement for changingthe angle of inclination