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Written by Super User

Category: About Goharravesh

Published: 18 December 2019

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Purpose: To use microcyclones and prevent dust loss due to the electrostatic separator outputs of the condensing plant that could have been trapped in the production cycle if the hematite recovery and desulfurization plant had been collected; The use of this tailing was key in the condensing plant.

The benefits of implementing this plan in addition to using concentrate dust were the prevention of the layoff of more than one hundred experienced and experienced hematite recovery plant personnel after collection.

In this one-year and completely indigenous contract, Ronak Company has been designing and engineering, and purchasing, supplying and executing Sirahroush Company. Operation of the plant started in March 2016 on a land of 1000 square meters in three floors with a steel frame weighing 800 tons and was put into operation after eleven months.

Condensed plant dust project offsets the reduction in production caused by hematite recovery plant collection and the ability to deliver pelletizing plant feed to 800,000 tons of concentrate with grade, blain, moisture and optimum quality.

The plant was able to achieve a reputation in the first month after being put into operation by the proper construction, implementation, and installation of qualified production and repair personnel.

One of the prominent features of this project is the lack of foreign exchange and the construction of 100% equipments and parts made by capable children of Iran, which is a powerful symbol of attention to the resistive economy and localization capabilities of our country.

Thanks to God and with the careful and detailed vision of Goharroosh Health & Safety Unit Experts and Supervising Employer Health & Safety Unit, during the construction of this project, Gahroosh Company achieved the highest possible score in occupational safety and health index And the health of the Gohar Mining and Industrial Company so that no cost or injury was sustained during the execution of the personnel working, which is one of the highest achievements.

Goharroosh Sirjan Company, while thanking the gods of Manan, is confident that Gohar Gohar Mineral & Industrial Complex will be responsible for the construction and operation of other projects such as in the past as well as in the future. Strong arm title for Gol Gohar Company.

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Written by Super User

Category: About Goharravesh

Published: 18 December 2019

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Due to the increasing need of the company for sports facilities and the lack of these spaces in the city, the board of directors and the CEO decided to build one of the best indoor and multifunctional sports complexes for the well-being of the personnel. Purchased from the best urban areas around which Sirjan sports complexes are located and taking into consideration the highest standards of the day technically and qualitatively build a stadium with a capacity of 3130 people with indoor dimensions of 24 * 44 meters with the highest quality Construction materials began in January 1977.

The auditorium is over 2000 square meters and will be used for the construction of side halls such as gym, billiards, ping pong and so on. All amenities of the two rival teams are similar and separate. It maintains a temperature of 25 degrees Celsius a year. The most durable skeleton and standard welding for earthquake resistance is another feature of the complex. A stadium in the near future can host provincial, national and even international competitions.

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Written by Super User

Category: About Goharravesh

Published: 18 December 2019

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1- Crusher machine with capacity of 2000 tons per hour (1 machine) Giratory Crusher 2000 tons / h
2. Stacker 2000 ton / h (1 unit) Stacker 2000 ton / h
3. Harvesting machine with capacity of 2000 tons per hour (1 machine) Reclaimer 2000 tons / h
4- Crushing or dry condensing lines consist of three separate lines and include the following equipment:

1- Semi-self-propelled mills with a capacity of 800 tons per hour (3 machines in two separate lines) Semi-Auto Genius Mill 800 tons / h
2- Hot air burner manufactured by Pillard Company to heat the material (3 units) Hotgas Generator
3- Material conveyors (7000 m long conveyor belt) (20 sets) Belt Conveyor
4- Magnetic Separator (24 sets) Dry Magnet Separator
5- Material Storage and Intermediate Silos (8 pcs) Ore Bin
6- Suction / Blower and Combustion Fans (9 units) Air Fresh & Suction Fan
7- Clasifire & Cyclon Separators (15 sets)
8. Electrostatic Precipitator (ESP) 3
9. Wet Scrubber (3 units)
5. The crushing lines of the mud or wet material section consist of three separate lines and include the following equipment:

1. Wet mills with a capacity of 200 tons per hour Hot Gas Generator 200 tons / h
2-Wet Magnetic Separator with Capacity of 120 Ton / h (18 units) Wet Magnet Separator 120 Ton / h
3- Concentrator dryers (GearDisk Filter Humidity) (4 sets) Disc Filter
Vacuum Pump Devices (4 Vaccume Pumps)
(5) Mid Bin Material Silos (3 sets) Ore Bin
6- Intermediate Silo Feeders (3 sets) Ore Bin Feederes
7- Belt Conveyor conveyor (9 sets)
8- Concentrate storage silo (1 ton concrete 4000 ton) Concentrate Bin (Concentrate)
9. Tail Bin (Concentrate)
10- Loading concentrate (1 ton concrete 4000 ton) Loading Bin (Concentrate)
11- Transfer Tower Station (1 unit)
12. Stacker / Reclamer Machine (for stacking and removing concentrate from bottom) (1 machine) Stacker / Reclimer
13. Other auxiliary equipment such as compressor, power stations, control and power rooms, and air conditioners ...
14- Fuel station: including six 1,000,000 liter tanks for storing fuel oil and diesel fuel with associated home pump for fuel transportation and storage.
15. Spare parts equipment warehouses, repairs, maintenance and office building.
Therefore, in order to maintain and optimize the production bottlenecks in this large production complex, the company has made the following optimizations, which are briefly:
1. Eliminate bucket-mounted elevator units that were designed as a large bottleneck and replace them by designing, fabricating and executing three sets of conveyor belts and transferring materials to the intermediate silos through this conveyor.
2. Remove, design and build two new intermediate silos and connect all of these silos to each other for greater capacity utilization.
3. Design and use of salt water instead of raw water due to scarcity and optimum use of fresh water in the area of ​​mine salt substitution design which is an intruder in the mine for drilling and saving of raw water consumption by operating a machine. Pumping the house and transmission lines to the plant and utilizing the sites at about 2000 m3 / day saved the raw water consumption.
4. Replacement of polyethylene pipes instead of carbon steel which has caused severe crushing is another project implemented in the factory.
5. Design and construction and installation of a conveyor belt (CV 104 / B) with a length of 1400 meters to transfer inputs to feeding silos in parallel to the belt conveyor (CV104) which has increased the capacity of the plant to double its load.
6. Design, optimization and removal of circulating load on dry mills that increase the efficiency and feed input to the mills by 40% and increase the production of concentrate up to 20% and decompose 50% iron ore deposit Plans have been successful.
7. New non-structural construction of all inlet and outlet conveyor belts that crushes and consumes excessive wear and tear and replaces with abrasion.
8. Replacement of industrial anti-abrasion ceramics in most abrasive clones and classifiers that have been worn and abundant.
9 - Launching the third line of development plan at a very fast pace, based on the previous experience of its personnel to achieve 100% efficiency in the first month of production.
10- Replacement of most exterior parts with interior parts and achieve the desired and competitive and even more with exterior type
11- Manufacture of two types of external pumps with internal facilities and use in production lines
12-Design and construction and installation of a 40 m conveyor (13 CV 103) for direct feed when stopping the recycler machine for loading the mills and preventing non-stop lines
13. Design, construction and installation of a conveyor unit with a length of 40 m (13 CV 106) and circular shot and change in design of a conveyor unit (13 CV 131) for the transfer of middel material to the tailings conveyor and concentrate while stopping the middel lines and mills which prevent Drying out of production lines
14- Designing and modifying existing conveyor designs to increase the load capacity and utilize more capacity to increase production.
15. and other minor changes and changes to the process and software of the control and electrical software that are fully visible and reviewed in Gol-e Gohar when needed.

Details

Written by Super User

Category: About Goharravesh

Published: 18 December 2019

Hits: 2284

The EPC contract is under construction and executed by Goharroosh Sirjan Company. The plant started operations in June 1977 and has two dry feed recovery lines with a production capacity of 600,000 tons per year, two more feed recovery lines with a capacity of 400,000 tons per year. It has doubled the number and capacity of its lines twice a year compared to the current hematite plant. It also has a feed capacity of 4 million tonnes per year. Other capabilities of the plant are the ability to increase production to 1.6 million tonnes of concentrate per year.

The concentrate produced in this company has 65% iron grade and less than 100 micron grading. The feedstock of this plant has been estimated with available materials for 8 years and the design of the plant has been designed to continue the feed flexibility with grain. Hematite and magnetite classification is possible.