Production Line

Mixing section

    The required concentrate and bentonite (glue) are charged into the mixers through the conveyor belt and after the completion of the mixing process, they are directed to the raw pellet section.

    Raw pellet section

 The most important stage of making pellets is making raw pellets with the right size. SMIC pellet factory has 9 completely identical rotating discs for producing raw pellets.

The concentrate mixture is transferred from the mixer section by conveyors to the charging tanks of the disks and is charged into the disks through the feeders under the tank. The concentrate mixture is rolled over each other due to the rotation of the disk and the particles stick to each other like an avalanche phenomenon. After forming and reaching the appropriate size, the raw pellet is practically formed and comes out from the edge of the disks.

After passing through the roller mills, the formed pellets are separated into small, large and suitable pellets. After the crushing process small and large pellets are transferred to the disk charging tanks again through the conveyor belt, and the suitable pellets (size 8 to 16 mm) are directed to the baking machine (baking oven) section.

Cooking pellets

    The appropriate produced raw pellets as output from the raw pellet section, are distributed on a 4-meter-wide belt, then entered into the baking furnace and evenly charged on the surface of the pallets.

The pellet baking belt consists of 248 work pallets (made of a special alloy) is arranged in succession, totaling 168 meters in length, moves in two reciprocating positions around two gear wheels (sprocket drive and levering) and pass through the baking tunnel like a chain conveyor. The product is heated and dried in the drying sections (first, second, and third) by hot air at temperatures ranging from 350 to 700 degrees Celsius, and prepared for the baking stage.

Afterwards, in the pre-heating and baking section, the resulting product is heated by 30 gas burners at temperatures ranging from 900 to 1300 degrees Celsius and hardened, and finally, after cooling in the cooling section, the baked pellets are directed to the product screening section.

 Additionally, with the proper performance of the seven-process fans as well as intelligent design of energy transfer ducts,  it is possible to move the resulting heat and prevent energy loss.

Screening Section

In the first stage, pellets sized between 11 to 16 millimeters are separated for use as protective layer on the baking belt. In the second stage, fine pellets with a size smaller than 5 millimeters are separated and returned to the production cycle through the milling and re-filtration section.

Then, the produced product (pellets sized 9 - 16 millimeters) is transferred to two product depots, each with a capacity of 230 thousand tons by a conveyor belt and stored by a stacker reclaimer device.

 The final product stored in the pellet piles is loaded by the stacker reclaimer and transferred by conveyor belt to the mechanized loading center and exclusive rail loading station with a loading capacity of 5 million tons per year, and from there, it is dispatched to designated destinations.