|What will be final moisture level of material (in ppm) after drying by Infrared Rotary crystallizer and dryer (IRD)?
1.Final moisture comes down from 5000-6000 ppm to 300-400 ppm within 15-25 minutes of the drying process.
2. Moisture can come down further if the processed material is kept in an insulated buffer hopper for 30- 45 minutes.
3. If final moisture content of less than 50ppm is required a dehumidifier can be placed in conjunction with IRD
|Do we need to crystallize PET grinding before putting it into the IRD?
||1. Not needed; IRD crystallizes and dries PET grinding/flakes simultaneously
|What is life of Infrared lamps used in Infrared Rotary crystallizer and dryer?
|What is the cost of Infrared lamp?
|How much energy does an IRD save in comparison to conventional agitator type crystallizer and dryer?
||1. Saves at least ~ 20 to 30% energy compared to conventional agitator type crystallizer and dehumidifier
|How much energy is consumed to crystallize and dry PET flakes and preform grinding?
||1. PET bottle flake : 0.22kw/kg. ±5%.
2. PET preform grinding : 0.12kw/kg. ±5%.
|How often does one need to stop and clean the entire system from inside (PET Dust etc)?
||1. Frequency of cleaning depends upon the quality of input material and working environment.
2. Inherent design of the setup makes it extremely convenient to clean within a limited time and offers
a quick restart. Drum can be cleaned easily by pulling out the slide mechanism fitted with heater column and cooling system. (video link attached)https://www.youtube.com/watch?v=1bCFBr_EXvA&t=3s
|What steps have been taken to restrict dust build-up on the heaters?
||1. Continuous air supply in the heater bank creates a protective shield and restricts the accumulation ofdust and PET fines on the heaters.
|What is annual maintenance cost of this equipment?
||1. This machine has minimal maintenance cost. The only replaceable and consumable parts are Infrared lamps which are widely available in market.
|What is the minimum and maximum throughput, we can take through this equipment?
1. Present design: 315 litre/hr @ 1 RPM of drum ±5% OR 110kg/hr @1 RPM of drum ±5% (with a material of bulk density: 350 g/litre)
2. We are planning to design and manufacture bigger machine to meet the industry demand.
|Which make of bearings, gear boxes, Invertors and motors are being used in this equipment?
||1. Bearings: SKF, NTN, Nachi and NBC
2. Gearbox: Premium, Bonfiglioli and PBL
3. Invertors: Siemens/Schneider.
4. HMI: Siemens.
5. Switchgears: Siemens/Schneider.
6. Motors: Roto-motive, Siemens and ABB
(assisted power cooling)