GRC — air classifier with guide ring and pre-dispersion, top size 2–200 µm, 50–50 000 kg/h
Country: · Model: GRC
GRC (Guide Ring Classifier) is an air classifier with a guide ring that divides ground material into fine and coarse fractions. Top size d97 is from 2 to 200 µm, capacity 50–50 000 kg/h, classifier power 10–300 kW. It works as a stand-alone system or together with a mill.
- Principle
- classifier wheel, annular gap with guide vanes, distribution cone and pre-dispersion unit; feed from above through an airlock
- Top size limit (d97)
- 2–200 µm
- Capacity
- 50–50 000 kg/h (0.05–50 t/h)
- Classifier power
- 10–300 kW
Technical specifications
| Principle | classifier wheel, annular gap with guide vanes, distribution cone and pre-dispersion unit; feed from above through an airlock |
|---|---|
| Top size limit (d97) | 2–200 µm |
| Capacity | 50–50 000 kg/h (0.05–50 t/h) |
| Classifier power | 10–300 kW |
| Air flow | 1000–40 000 m³/h |
| Feed particle size | max. 3–5 mm |
| Diameter | up to 2000 mm |
| Modes | stand-alone classification system or paired with a mill (ball, roller, impact, pendulum) |
| Options | wear protection |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The material is fed from above through an airlock onto the distribution cone and the plate above the wheel, passes the redesigned dispersion unit and enters the annular gap between the wheel inside and the guide vanes outside. Air is supplied from outside and carries the particles into the separation zone; fine particles pass through the wheel and settle in the filter after the classifier, while coarse ones are thrown off by the wheel and leave through the airlock. Pre-dispersion keeps the material in the classification zone as separate particles, which gives a sharp separation limit. Air flow is 1000–40 000 m³/h, feed particle size no more than 3–5 mm, diameter up to 2000 mm. After the upgrade, the range was extended to 2–200 µm instead of the former 20–200 µm. Wear protection is offered as an option.
How to choose
The classifier is installed on its own or paired with a ball, roller, pendulum or impact mill. It can also be placed before grinding if the starting material already contains a lot of finished product; then the fine fraction is removed in advance to relieve the mill and prevent overgrinding. The test GRC 820 in the technical center gives several tonnes per hour at medium fineness, while in the high-fineness range the capacity falls to several hundred kilograms per hour. For a top size of 8–200 µm on the full air flow, see DC and DCX.
Request a price and lead time
GRC — air classifier with guide ring and pre-dispersion, top size 2–200 µm, 50–50 000 kg/h. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which materials is GRC used for?
For fertilizers, minerals for oil fields, pigments and paints, clays and ceramics, gypsum, lime cycle products, fillers for plastics, and chemical and food products.
Is GRC suitable for battery materials?
Yes, it is used to remove the ultrafine fraction in the production of battery materials, as well as for protein enrichment and for reducing chloride content in waste dust of the cement and steel industries.
What feed particle size is allowed for GRC?
No more than 3–5 mm. The product is fed from above through an airlock.
What is the fineness range after the upgrade?
Top size d97 is from 2 to 200 µm instead of the former 20–200 µm.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.