DRILL PANGOLIN®| DTH CRAWLER ROCK DRILL RIG | TOP HAMMER CRAWLER ROCK DRILL | DTH HAMMER | DRILL BIT | DRILL ROD
  • DRILLING RIG
    • DTH CRAWLER ROCK DRILL RIG (89-406mm) >
      • DTH HYDRAULIC >
        • KHITAN-910-PRO-DTH (89-178mm) >
          • KHITAN-910-DTH (89-178mm)
        • KHITAN-920-DTH (89-140mm)
        • KHITAN-930-MAX-DTH (89-152mm) >
          • KHITAN-930-DTH (115-152mm)
        • KHITAN-950-DTH (89-178mm)
        • KHITAN-960-DTH (89-127mm)
        • KHITAN-970-DTH (102-152mm)
        • KHITAN-990-DTH (178-255mm)
        • APOLLO SOLAR DRILL RIG (203-406mm)
      • DTH PNEUMATIC >
        • Furukawa PCR200-DTH(89-140mm)
        • QIN-PCR200-DTH(89-165mm)
        • HAN-D50-DTH (CM351)(89-165mm)
        • HAN-D50-DTH-PRO (CM351 UPGRADE)
    • TOP HAMMER CRAWLER ROCK DRILL (64-76mm) >
      • YUAN-PCR200-PRO(64-76mm)
    • RC DRILLING RIG >
      • DEPTH 350M
    • WATER WELL DRILL RIG >
      • GG-200 (260m)
  • DRIFTER
    • PD200 Drifter
    • VL140 Drifter
    • 1838+ | 1838HD+ Drifter & Parts
    • H200 | H300 Drifter & Parts
    • MONTABERT HC95 Drifter Parts
  • CONSUMABLES
    • Top Hammer Drilling Tools >
      • Top hammer drilling bits
      • Shank Adapter
      • Coupler (Sleeve)
    • DTH Drilling Tools >
      • DTH bits
      • DTH hammer
      • Drill Rod
    • Shock absorbing sub
    • Air hose
  • PARTS
    • FURUKAWA PCR200 & PCR200-DTH >
      • Rotary head assembly
      • feed motor assembly
      • Hydraulic power pump assy
      • Track
    • Ingersoll Rand CM351 >
      • Air Pressure Regulators >
        • Air Pressure Regulator
        • Air Pressure Regulator (Feed)
        • Air Pressure Regulator (Rotation)
      • Air motors >
        • Air motor (Rotary vane motor)
        • Air motor (Rotary gear motor)
        • Air motor (Feed)
        • Air motor (Traveling)
        • Hydraulic pump air motor
      • Air control valves >
        • Hydraulic control vavle
        • Valve bank
      • Hydraulic pump
      • Feed gearbox
      • Rotary head assembly
      • Clamp Plate
    • EPIROC AIRROC D45 & D50 >
      • Rotary head assembly
      • Hydraulic pump
    • Dust Collector >
      • F11 Hydraulic Motor
      • Dust Collector (Filters)
      • Dust Collector (Water mist flushing system)
  • NEWS
  • CONTACT

NEWS

5 common blasting methods in open pit mining

4/2/2019

 
YUAN-PCR200-PRO top hammer pneumatic crawler rock drilling rig drills in quarry open-pit mining in pakistanYUAN-PCR200-PRO
As we know, open-pit mining operations mainly include perforation, blasting, loading, transport, and discharge of soil. Blasting is an essential part of it, and it accounts for 15-20% of the total cost of open pit mining. And the quality of blasting directly affects the efficiency of equipment such as mining, transportation, and coarse crushing and the total cost of the mine. Today we would like to share some common blasting methods in open-pit mining and their application.

YUAN-PCR200-PRO top hammer pneumatic crawler rock drilling rig drills in quarry open-pit mining in Indonesia
​In open-pit mining, the commonly used blasting methods are as follows:

Classification by blasting method: shallow hole blasting, medium and deep hole blasting, chamber blasting, multi-row hole differential blasting, multi-row hole differential extrusion blasting, pot blasting, external application blasting, hole by hole blasting technology.

5 common blasting methods in open pit mining
  1. Shallow hole blasting
Shallow hole blasting hole diameter is small, generally, about 30~75 mm, hole depth is typically 5 meters below, sometimes up to 8 meters or so, such as YUAN-PCR200-PRO top hammer pneumatic crawler rock drilling rig , hole depth can be increased.

Advantages and disadvantages of shallow hole blasting

Advantage

1, with flexibility and the full range of use;

2. For ore deposits with complex burial conditions and high ore grade requirements, separate blasting and separate mining can be carried out to reduce dilution rate;

3, drilling tool is relatively simple, easy to master;

4. Less preparation work;

5. The blasting ore has small lumpiness, which is easy to meet the requirements of loading and crushing;

6. Compared with chamber blasting and deep hole blasting, the use of explosives consumes fewer stars.

Disadvantage

cannot adapt to the needs of large-scale production, and in charge, wiring, overshoot this disadvantage several links are prone to loopholes.

Application:

Shallow hole blasting is mainly used for the production of small scale open pit mines or quarries, adit rock, tunnel excavation, secondary blasting, new open pit mountain bag processing, the formation of slope accessible single trench transport path and some other unique blasting.

2.Deep hole blasting
Deep hole blasting is the blasting method of drilling deeper holes with drilling equipment as the charging space of mine explosives.
​...

View my profile on LinkedIn

    Get the full article 

Get it

Comments are closed.

    RSS Feed

COMPANY
​


About us
News
Mall
PRODUCT LIST
​

SURFACE QUARRY & MINING

DTH FULL HYDRAULIC RIG
KHITAN-920-DTH full hydraulic crawler rock drill rig (89-140mm) without cabin
KHITAN-930-DTH full hydraulic crawler rock drilling rig (115-152mm) without cabin
KHITAN-930-MAX-DTH full hydraulic crawler drilling rig (115-152mm) without cabin
KHITAN-960-DTH hydraulic crawler rock drilling rig (89-127mm) with cabin
KHITAN-970-DTH hydraulic crawler rock drilling rig (102-152mm) ​ with cabin
KHITAN-990-DTH blasthole drilling rig (178-255mm) ​ with cabin

DTH HYDRAULIC RIG
​KHITAN-910-PRO DTH hydraulic crawler rock drilling rig  (89-178mm) rod carousel
KHITAN-910-DTH hydraulic crawler rock drilling rig  (89-178mm)
 without cabin

KHITAN-950-DTH hydraulic crawler rock drilling rig (89-178mm)  with cabin
APOLO solar drilli rig (203-406mm)  
​
DTH PNEUMATI
C RIG

QIN-PCR200-DTH pneumatic crawler rock drilling rig (89-165mm)
​
CM351 DTH pneumatic crawler rock drilling rig (89-165mm)
CM351 Upgrade air track rock drill (89-165mm)
​
​TOP HAMMER RIG

YUAN-PCR200-PRO top hammer pneumatic crawler rock  drill (64 & 76mm)

​RC DRILLING RIG
ADVENTURER-RC350 RC drill rig (350m)

​WATER WELL DRILLING RIG
GG-200 water well  drill rig (260m)

AIR COMPRESSOR

CONSUMABLES
Top hammer bits
Shank adapter 
Coupler (Sleeve)
DTH Hammer
​DTH bits
Drill rod
Air hose
​

DRIFTER & PARTS
PD200 drifter & parts 
1838+ & 1838HD+ hydraulic rock drill & parts
H200 hydraulic rock drill & parts
H300 hydraulic rock drill & parts
​MONTABERT HC95 drifter parts
VL140 drifter

JACK LEGS
322D Jack Leg (Japan standard)
280LD Jack Leg (Japan standard)
24LD ​Jack Leg (Japan standard)
Apsaras-28 Jack Leg (China standard)
CERTIFICATION
​


Picture
FIND US
​

Copyright ® 2009-2022   |    DRILL PANGOLIN®​
  • DRILLING RIG
    • DTH CRAWLER ROCK DRILL RIG (89-406mm) >
      • DTH HYDRAULIC >
        • KHITAN-910-PRO-DTH (89-178mm) >
          • KHITAN-910-DTH (89-178mm)
        • KHITAN-920-DTH (89-140mm)
        • KHITAN-930-MAX-DTH (89-152mm) >
          • KHITAN-930-DTH (115-152mm)
        • KHITAN-950-DTH (89-178mm)
        • KHITAN-960-DTH (89-127mm)
        • KHITAN-970-DTH (102-152mm)
        • KHITAN-990-DTH (178-255mm)
        • APOLLO SOLAR DRILL RIG (203-406mm)
      • DTH PNEUMATIC >
        • Furukawa PCR200-DTH(89-140mm)
        • QIN-PCR200-DTH(89-165mm)
        • HAN-D50-DTH (CM351)(89-165mm)
        • HAN-D50-DTH-PRO (CM351 UPGRADE)
    • TOP HAMMER CRAWLER ROCK DRILL (64-76mm) >
      • YUAN-PCR200-PRO(64-76mm)
    • RC DRILLING RIG >
      • DEPTH 350M
    • WATER WELL DRILL RIG >
      • GG-200 (260m)
  • DRIFTER
    • PD200 Drifter
    • VL140 Drifter
    • 1838+ | 1838HD+ Drifter & Parts
    • H200 | H300 Drifter & Parts
    • MONTABERT HC95 Drifter Parts
  • CONSUMABLES
    • Top Hammer Drilling Tools >
      • Top hammer drilling bits
      • Shank Adapter
      • Coupler (Sleeve)
    • DTH Drilling Tools >
      • DTH bits
      • DTH hammer
      • Drill Rod
    • Shock absorbing sub
    • Air hose
  • PARTS
    • FURUKAWA PCR200 & PCR200-DTH >
      • Rotary head assembly
      • feed motor assembly
      • Hydraulic power pump assy
      • Track
    • Ingersoll Rand CM351 >
      • Air Pressure Regulators >
        • Air Pressure Regulator
        • Air Pressure Regulator (Feed)
        • Air Pressure Regulator (Rotation)
      • Air motors >
        • Air motor (Rotary vane motor)
        • Air motor (Rotary gear motor)
        • Air motor (Feed)
        • Air motor (Traveling)
        • Hydraulic pump air motor
      • Air control valves >
        • Hydraulic control vavle
        • Valve bank
      • Hydraulic pump
      • Feed gearbox
      • Rotary head assembly
      • Clamp Plate
    • EPIROC AIRROC D45 & D50 >
      • Rotary head assembly
      • Hydraulic pump
    • Dust Collector >
      • F11 Hydraulic Motor
      • Dust Collector (Filters)
      • Dust Collector (Water mist flushing system)
  • NEWS
  • CONTACT