Crusher CCB 1500/180 at around 59.85m
The case of large crushing СP-3 is located in mine site No. 3 at a horizon of -60 meters, represents:
- Mine well 32.1 m deep.
- Diameter of a well to light 23 m
- The mouth of the well is located on the site with an absolute mark of -59, 850 m
In the inner part of the well, at the levels of -5.35 m, -12.22 m, -15.62 m, -20 m there are:
- Foundation for crusher
- Feeder hopper, floor slab
- Metal staircases
- Lift shaft
- Staff service platform
The foundation of the CP-3 coarse crushing case is located above the hopper of the feeders, on a common monolithic reinforced concrete slab, at around - 32.00 m. The room of the oil station is located at around -20 m.
The operating mode of the crusher is round-the-clock, 365 days a year. No more than 60 calendar days were allocated for the stop period. Work on replacing the case crusher was completed in 32 days, ahead of the planned period by 28 days, which avoided the financial loss of the enterprise.
Commentary by the Deputy Director for Technical Issues:
The implementation of this project was postponed from year to year for 6 years due to the technological importance of equipment for the entire “chain” of production at the enterprise, as well as due to the lack of qualified contractors to carry out the full range of work in the shortest possible time. For our company, it was a challenge from PJSC “ArcelorMittal Kryvyi Rih”.
Before choosing our company, the minimum possible time for stopping this equipment from many companies was 90 days of round-the-clock operation, which entailed big losses for the enterprise. According to long negotiations and technical meetings, an agreement was reached on a period of a stop period of 60 days.
A powerful engineering team was mobilized for these deadlines since exactly 25 days were allocated for the preparation before the start of the stop period. The big difficulty was that the work was carried out underground with 3 levels, the supply of materials and equipment could be done only in one bottleneck, and the mass of the CCC 1500/180 case crusher assembly was 450 tons.
This project included all types of construction and special works concentrated in one place. The descent of people was possible only through one narrow staircase. During the implementation, the object turned into an “ant house”, in which everyone knew their task and the time of their work in the directions.
The result of this engineering work and well-coordinated round-the-clock work of people is the implementation of the project in 32 days, which became an absolute record for all “ArcelorMittal” enterprises.
The technical skill and professional behavior of the employees of LLC “Construction company “Olvia” allowed us to additionally provide the Customer with services to identify defects and damages that affect the reliable operation of the crusher equipment complex, not provided for by the contract.