2015 Foundations for larger and deeper Offshore Wind
EN MDL201
1. MINI DRILL LUCKY
THE FIRST OF ITS KIND
BULGARIAN MINING MACHINE
PREPARED BY ENG. GEORGI ATANASOV
European Mining Business Forum 2016
13 September 2016 / Hilton Hotel – Sofia, Bulgaria
2. BULGARIA
Lucky Invest JSC is a concessionaire of two deposits of lead and zinc ores.
The main part of the ore bodies are steeply dipping quartz-sulphide lodes,
which are characterized by small thickness and variable and often low
content of useful components.
The Company uses the smallest class mining mobile machines existing on
the market as a result of which the following has been achieved:
• High labor productivity
• Significantly improved working conditions
• Simplifying the organization of production
• Possibility of operational management as to the quality of ore loaded
Despite the use of the smallest class mining machinery in the specific
mining conditions, a significantly higher dilution rate has been reported for
the ore extracted.
For this reason Lucky Invest decided to finance the development of a mini
mobile drilling machine to suit the specific conditions of the deposits.
3. TECHNOLOGICAL REQUIREMENTS
AND CHALLENGES
Overall dimensions providing minimum cross sections of ore development
headings in compliance with the PBT B-01-02-04 (Regulations on labor
safety in the development of ore and non-metalliferous deposits by
underground way).
Good ergonomic features.
Simple controls.
Work in complex mining and geological conditions.
Safe working conditions, according to the European standards.
Use of components and materials for OEM mainly from Bulgarian
manufacturers and suppliers.
A higher level of technology than existing machines in this class.
4. REALIZATION OF THE PROJECT
• March 2015 - June 2016
• 5000 design man-hours
• 3200 man-hours for the assembly of prototype
• 300 man-hours for setup and commissioning
• Engineering team of five
• The place where the job was completed is a mechanical workshop
of Lucky Invest JSC
Research
Conceptual
design
Design and
engineering
Production Commissioning
5. REALIZATION OF THE PROJECT
Research
Conceptual
design
Design and
engineering
Production Commissioning
6. SAFE WORKING CONDITIONS
EN 16228-1:2014 - Drilling and foundation equipment. Safety. Common
requirements
EN 16228-2:2014 - Drilling and foundation equipment. Safety. Mobile drill rigs for
civil and geotechnical engineering, quarrying and mining
Research
Conceptual
design
8. CONCEPTUAL DESIGN
Work in profile from 2.5 to 2.5 meters to 3.5 to 3.5 meters.
Dimensions of drilling:
• Development drilling up to 45 mm
• Production drilling up to 57 mm
Electro-hydraulic drilling system
ICE to move the machine to the workplace
Hydrostatic drive system Water pump
Compressor
Cable reel
Central greasing system
Fire system
Automated control system
Research
Conceptual
design
9. HYDRAULIC ROCK DRILL
Optimal maximum hole diameter 57 mm
Percussion power 13 kW
Shank size R32 / R38 / T38
Water flushing
Dimensions 765/243/160
Weight 83 kg
Research
Conceptual
design
Design and
engineering
10. HYDROSTATIC DRIVE SYSTEM
Axial piston pump
Four hydraulic motors
Integrated multidisc brakes
Charging valve
Cooler
Research
Conceptual
design
Design and
engineering
11. AUTOMATED CONTROL SYSTEM
Research
Conceptual
design
Design and
engineering
Rear panel
Front panel
WAGO
I/O
SoftStarter
Schneider
HMI
Touch panel
Schneider
UPS
Charger
BATTERY
24V
Ethernet
Profibus
Safety Safety
EMSTPs
Ethernet
Switch
HMI
Touch panel
Schneider
WI-FI
LAN
COMS
Main motor
Lights
Sensors
Valves
Control
Lights
Sensors
Valves
Diesel Engine
El. Motors
Safety
EMSTPs
Front frameRear frame
PROGRAMING
DIAGNOSTIC
DATA ARCHIVE
PLC
Siemens
S7-300
WAGO
I/O
14. MINI DRILL LUCKY (MDL201)
Hydraulic hammer drill with 13 kW power
• Development drilling 38-45 mm
• Production drilling 45-57 mm
Total installed power of 50 kW
Engine 36.4 kW Tier 3 / Stage IIIA
Hydrostatic drive system
Water pump 30 l / min.
Compressor 0.24 m3 / min
Cable reel 60 m
Central greasing system
Fire system
Automated control system
Research
Conceptual
design
Design and
engineering
Production
15. RESULT
Significant reduction of ore dilution because of the opportunity to work
in a small profile which is similar to that made manually using a jack
leg rock drill.
Drilling in profile up to 3.5 by 3.5 meters.
Drilling penetration rate varying from 0.8 to 1.6 meters per minute
depend of rocks condition.
Suitable for use in ore development headings and production drilling.
Optimization of drilling tools cost.
Research
Conceptual
design
Design and
engineering
Production Commissioning
