Contact Us: +98 21 2642 1003-9      

INVITATION TO TENDER

INVITATION TO TENDER

Maad Chemie Company (Private Joint Stock) intends to implement an Iron Ore Beneficiation Plant Project with nominal capacity of 2.5 million metric tons of Iron Ore Concentrate per annum in Persian gulf, special economic industrial and mining zone, Bandar Abbas, Iran, on EPC basis.

 1) Financial Resources:

Owner’s resources & facilities to be provided by National Development Fund.

2) Project Execution Period:

30 Months (27 months mechanical completion & 3 months commissioning)

3) Bid Bond:

Five Hundred Thousand Euro (500,000€), issued by a reputable bank

4) Eligibility For Participation:

All local and international contractors with considerable records in execution of Iron Ore beneficiation plants may participate individually or together with their qualified partners. ( with acceptance of Joint &several responsibility)

5) Sales Of Tender Documents:

The Tender documents will be sold from 11/01/2014  Up to 11/16/2014 against submission of a formal application and payment of a non-refundable sum of One Thousand Euro (1000€).

6) Address Of Maad Chemie Company:

Address: No.247,Mirdamad Blvd, Tehran, Iran

Tel: (+98) 21 2642 1003-9

Fax: (+98) 21 2641 3606

Web: www.arzeshholding.com

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

7) Biding Closing Time:

The closing time for submission of the Bids shall be 10 am 01/14/2015

 8) Clarifications:

In case of any questions or ambiguities you can contact Eng. Mirhosseini for clarifications.

9) Reservation Of Rights:

Maad Chemie Company reserves the right to accept or reject any or all proposals at its sole discretion.

 10) adverts

 

Process

A brief description of pelletizing

Originally the pelletizing process was developed in the United States of America to treat the ultra-fine mineral dressing products obtained from the upgrading of Mesabi ore. The pelletizing process has been developed to provide a blast furnace feed product with iron contents of about 65 percent (Ball et al., 1973).

Iron ore concentrates with very fine particle size can be converted agglomerates by applying sintering or pelletizing techniques. However, sintering cannot be applied efficiently because of too fine particle size of iron ore concentrates. Such materials can lead to problems such as high fuel consumption and low specific output when sintering is applied. Therefore, the most commonly employed agglomeration technique is pelletizing for such a fine sized concentrates. The agglomerates produced by the pelletizing process are called pellets.

Pellets are balls produced from iron ore concentrates and natural high grade iron ores of different mineralogical and chemical composition with some remarkable properties such as;

- Uniform size distribution within a main range of 9-16 mm diameter,

- High and even porosity,

- High iron content more than 63% Fe,

- Practically no loss on ignition or volatiles,

- Uniform mineralogical composition in the form of an easily reducible hematite or hematite-bearing compounds,

- High and uniform mechanical strength,

- Low tendency to abrasion and good behavior during transportation,

- Sufficient mechanical strength even at thermal stress under reducing atmosphere 

The pelletizing of iron ore process is essentially based on the formation of wet pellets by rolling a finely ground iron ore or concentrate to which a binder (usually bentonite) is added together with a critical amount of liquid (usually water). The newly formed pellets should have strengths high enough to survive transportation. In iron ore pelletizing, three binders are generally accepted:

- Bentonite, naturally occurring clay found in deposits of varying qualities around the world.

- Hydrated lime produced by the calcination of limestone or inorganic materials.

- Organic binders, either natural or synthetic, such as the cellulose based materials.

Pellets can be produced from magnetite concentrates, hematite concentrates, natural ore fines, artificial magnetite and pyrite cinders. Many pelletizing plants worldwide use magnetite and hematite as iron oxide sources. Use of a binder is necessary to bind the iron ore grains in wet and dry condition. Binders play an important role in the success of pelletizing process.

Bentonite is the most common binder in iron ore pelletization. Bentonite has proven to be the most effective binder owing to its high water adsorption capacity and dry film strength. It is commonly used as a addition level of 0.5-1.5% by weight of iron ore.

Inorganic materials not containing silica, like hydrated lime; have a slight advantage over bentonite when silica levels are the primary concern of steel makers. However, most of them are incapable of controlling water during pelletization, and do little contribution to the cohesive/adhesive forces required to form and maintain green pellet integrity. This results in poor quality green balls that are fragile and easily broken, lowering production rates in iron making facilities. Furthermore, due to the massive amounts required for basicity control and pelletization, some inorganic materials can contribute to spalling of pellets decreasing the quality of the finished pellet product.

Products

Due to the various kinds of products, we have taken an action in two parts for selling as bellows:

 1- Fine and processed magnetite: Due to improve of the quality of this part, it has been exported to China.

2- Lump and fine Hematite: it has been sold to cement factories such as Farsnov , Fars, Yasooj , Estahban , Kangan cement companies.

 Nowadays, Maadkansar Mine is producing fine Magnetite iron ore with size of 0-10mm and 10-25mm with min grade of 53% and above

 (Fetotal =53%) and also lump and fine Hematite in acceptable grade of cement factories.

 

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Extraction process

Extraction process included stope development of working face concerning all separating tails from minerals,  creating safety and appropriate level steps in each workshop to construct drilling grid which this affair performs by excavators and loaders. After stope developing, design of drilling grids and then drilling by drilling machines will be done which included drill holes with define rows and depth.

After drilling and based on the estimation of explosive materials, holes will fill by base charge and catalysts which contains ANFO, booster, blasting cap, detonating fuse.

In next step the product of explosion will be carried by trucks to scale unit to be weighted for making depots.

Supervisory mine team have program for management of Transportation to transfer the minerals and also arranging the time for loading , transposition of several work faces for the mentioned activities.

Processing Unit

In the process section , due to laboratories tests and pilot which we did in sites with inner and foreigner reputed laboratories our company began to design crushing line according to physical and chemical specifications which is set up and established delicately (for input , output , stock of tailing).

After magnetic screening by 9 sets of magnetic separator including drum, belt drum in series and paralleled, it is established the deterministic for increasing the grade.

The next step is arranging to send the iron ore which are exploited purely by testing from the working face and depot of inputted iron ore to crusher unit which owns he stable and average quality in order to receive the output product with a stable random quality.

It is necessary to be mentioned that the grade of input iron ore to the crushing line is

42 %< Fe <45% with Feo<5% and Output product will be 52 %< Fe <59%   with Feo > 10%.

The whole crushing and processing contains one output tailing which is optimistically situated.

Also, about dry processing for hematite, it is near to be executed, In result some affairs such as testing in pilot are done.

Address

Address:
Tel:
+(98) 21 2642 1003-9
Fax:
+(98) 21 2641 3606
E-Mail:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Website:
www.arzeshholding.com

 

 

About Us

Arzesh International Investment Developing Holding, with the aim of investment in thefield of industry is currently consists of 3 subsets in various sectors of industry:

- Maad Kansar: The company operating in the field of exploration, exploitation and processing of iron ore located in Fars Province

- Maad Chemie: Iron ore concentration plan located in Persian Gulf Mining and Metal Industrial Special Economic Zone Bandar Abbas, iran

- Maad Koush: Iron ore pelletizing plant which is under construction Persian Gulf Mining and Metal Industrial Special Economic Zone Bandar Abbas, iran