Iron Ore Processing

Complete processing plant with a rate of 9,000 t/h

Largest Scandinavian Iron Ore supplier counts on JOEST screening technology. The million Euro project comprises of a new, turnkey screening house to process iron ore pellets for worldwide shipping.

PROCESSING PLANT
FOR THE SCREENING
OF IRON ORE PELLETS

STORAGE BUNKER
SYSTEM

BUNKER DISCHARGE
FEEDER

6 DOUBLE-DECK
VIBRATING SCREENS

BELT CONVEYER

OVERSIZE MATERIAL
HANDLING

STEEL
CONSTRUCTION

CONVEYING SYSTEM
FOR THE LOADING
ONTO SHIPS

The mid-sized company JÖST GmbH + Co. KG from Duelmen in Germany is installing a high-tech system for processing iron ore pellets in Narvik, Norway. Kiruna, the northernmost city of Sweden, is home to an iron ore mine of the same name, which processes and stores pellets. These iron ore pellets are transported from Sweden to Norway for shipping. In 1902, a train line was built all the way to Narvik for this purpose. At the time this was the most northern train line in the world. The trains using this route pull up to 68 rail carts and transport around 33 million tons of iron ore per year.

Narvik is situated at the Ofotfjord, north of the Arctic Circle, and has an average annual temperature of around 4° C. Thanks to these temperatures, which are influenced by the Gulf Stream, the fjord remains free of ice almost all year round. This is where the processing plant of Scandinavia’s biggest iron ore producer is located, with a facility for direct loading of iron ore pellets onto ships. The existing plant has a processing rate of 6,000 t/h, and a new plant with a processing rate of an additional 9,000 t/h had to be added.

The new screening plant system consists of a storage bunker system, six large double-decker vibrating screens with chutes, various connecting belt conveyors as well as a crusher. The scope of delivery also included the entire steel structure, detailed planning, project management as well as installation and start-up.

';

The route from Dülmen to Narvik in Google Maps

Um die Google Karte zu aktivieren, klicken Sie bitte auf Link. Dabei weisen wir darauf hin, dass nach der Aktivierung Daten an Google übermittelt werden. Mehr Informationen können Sie unter folgenden Link abrufen.

In close cooperation with the customer, JOEST developed a new processing plant for the screening of iron ore pellets and a conveying system for the loading onto ships.

2012

Customer inquiry and specification of the general scope & Development of a first concept of a customer-specific process solution
Several presentations of JOEST solutions for the customer

2013

Further development of the process solution details

2014

Decision / order placed with JOEST & Preparation of design drawings
Drawings approved by the customer & Final drawings prepared
Start of manufacturing at JOEST & Regular quality checks
Start of transport of first equipment to Norway & Assembly and installation of first equipment

2015

Manufacturing completed at JOEST
Assembly and installation completed & Completion of construction and installation by other suppliers

2016

January 2016: Cold start-up
April 2016: Warm start-up with product
April 2016: Training of operators and maintenance personnel
May 2016: Service test

May 2016: Final customer approval & Production launch

JOEST MINING, MINERALS AND QUARRYING

PDF DOWNLOAD

The special challenges of this project consisted of the customer’s high requirements, especially in terms of the quality of the equipment, screening efficiency, high durability, ease of maintenance, and a high level of automation.

The outer shell of the screening plant was closed just in time for the cold weather and short days of the Scandinavian winter at the end of last year, in spite of the tight schedule.

Unique customized concept for a turnkey system

STORAGE BUNKER SYSTEM

VIBRATING SCREEN

OVERSIZE MATERIAL HANDLING

BYPASS

The screens classify the input materials into pellets, finer and larger material particles.

Bunker discharge feeder FRF 2.500 x 2.400

Underneath each of the six bunker segments a large exciter driven JOEST feeder is discharging the material onto the vibrating screens. The special design avoids any material blockages and ensure very high discharge volumes of up to 9,000 tons of iron ore pellets per hour.

Double-deck vibrating screens with 2 exciters

The heart of the screening plant are the six double-deck vibrating screens, each with a width of 3,000 mm and a length of 9,200 mm. The screening plant has an impressive size of 41 x 26 x 42 m using more than 1,700 tons of steel for the construction. The screens are arranged in a back-to-back position for the best material distribution. Each screen can handle a maximum capacity of 1,500 t/h and has an effective screening area of 27.6 m² per deck.

Combined Rough and Medium Chute

The larger material ranging from 20 – 50 mm is conveyed to the Oversize Material Handling. The larger material ranging from 20 – 50 mm is conveyed to the Oversize Material Handling.

Feins Hopper

The pellets are moved directly onto the belt for loading onto ships. The finer material, with a size range of 0 – 6 mm, is transported separately into a fines hopper and converted back into pellets in a separate process.

t/h

Material
Throughput

m³

Intermediate Pellet
Storage

m²

Belt
Conveyor

m

Total Screeninng
Area

WHICH SCREEN FOR WHICH APPLICATION?

PDF DOWNLOAD