Onion Dehydration

Onion Dehydration

Onion Dehydration

Continuous Screen Graders

Conveyor feeds onions on to low end of first grader with a screen mesh opening of 40 mm to remove – 40 mm onions. More 40 mm onions are fed to second grader with a screen mesh opening of 75 mm to remove – 75mm onions. The remaining +75mm onions are discharged at the end of second grader.

Transfer Conveyor

It is a S.S. conveyor which is used to transfer onion from grader to peeling machine.

Onion Peeling Machine

The Onion Peeling Machine is used to peel the onions conveyed from the grader.

Transfer Conveyor

The conveyor is used to transfer the peeled onion to the Slicing machine

Slicing Machine

The Slicing machine is used to cut the onions into slices

Transfer Conveyor

The onion slices are then transferred to Dryer with the help of a Transfer Conveyor

Imperial Automatic Dryer – 5 Belt

The onion slices are dried using hot air drying method. The hot air is generated using the boiler, which blows a powerful air on the product spread on 5 continuous conveyor belts.

Bin Dryer

The basic principle behind the operation of a batch-in-bin dryer is to force relatively large quantities of air through a shallow grain depth so as to obtain a rapid drying speed, thus allowing the producer to accommodate larger harvest rates with other types of in-bin drying.

Hot Air Conveyor

Hot air conveyor is used to put the onion slices to further dry so as to obtain and maintain the desired moisture level.

Thermic Fluid Boiler – Cap. ‐ 15 Lakh Kcals/HR

A typical thermal fluid system is comprised of four main components:

  • Thermal fluid heater
  • Thermal fluid circulating pump
  • Expansion tank
  • User

The boiler system comprises of: a feed water system, steam system and fuel system. The feed water system provides water to the boiler and regulates it automatically to meet the steam demand. Various valves provide access for maintenance and repair. The steam system collects and controls the steam produced in the boiler. Steam is directed through a piping system to the point of use. Throughout the system, steam pressure is regulated using valves and checked with steam pressure gauges. The fuel system includes all equipment used to provide fuel to generate the necessary heat. The equipment required in the fuel system depends on the type of fuel used in the system.

The imperial dryer gets supply of hot air with the help of Thermic fluid boiler for drying the product.

 

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