MPL-22
 
 
 
 
 

Description

MPL-22 hole drilling and loading machine is designed for drilling blastholes and loading of muck at the drill and blast method of driving horizontal and inclined up to 12º mine galleries in rocks with UCS up to 100 MPa in mines hazardous on gas (methane) and coal dust.

Versions

  • MPL-22 with drilling rig and articulated scraper conveyor less belt stage loader;
  • MPL-22 -01 with drilling rig and fixed short scraper conveyor and belt stage loader;
  • MPL-22 -02 without a drill rig and with articulated scraper conveyor less belt stage loader;
  • MPL-22 -03 without a drill rig and with fixed short scraper conveyor and belt stage loader.
Parameters

Technical performance of loading at the following degrees of gallery inclina-tion, m3/min.:
 
 - up to  -8º
3
 - from -8º to -12º
2
Drilling performance, m/min.
32
Drilling height, max, m
4
Range of galleries inclination, degrees
12
Maximum size of loaded rock lumps, m
0,65
Dimensions an a transportation state, m:
 
 - length
9,1
 - width over crawlers
2,02
 - width over feeder
2,3
 - height over body
1,64
 - height over drilling rig
2,3
Weight (less stage loader), t:
 
 -  with a drilling rig 17
 -  less drilling rig 15
Ground pressure, MPa 0,09
Clearance, m 0,23
Voltage, V 660
Frequency, Hz 50
Total rated power of electric motors (less stage loader), kW
126

DRILLING EQUIPMENT

Blastholes diameter, mm
42
Travel advance, m
2,5
Rotation frequency of the drill rod, rpm.
330; 725

FEEDER

Loading arms drives
electromechanical, kinematically uncoupled
Electric drive power of each drive, kW
22
Loading apron width, m
2,3

CARRIAGE

Carriage drives
hydromechanical, kinematically uncoupled
Travel speed, m/min.
 
 - maneuvering 9
 - operating (with setup capability)
09
Truck width, m
0,51

CONVEYOR

Type Scraper
Electric motor drive power, kW
218,5
Trough width, m
0,67
Scraper chain speed, m/s
1,1

BELT STAGE LOADER

Electric motor drive power, kW
18,5
Belt width, m
0,8
Stage loader width in standard delivery, m
13,4

CONTROL

"Loading" mode
from the wireless remote controller
"Drilling" mode
from the stationary control board

ELECTRIC EQUIPMENT

Electric motor drives power, kW:
 - left loading arm
22
 - right loading arm
22
 - scraper chain conveyor
218,5
 - oil station
30
 - control circuits and drilling rig manipulator pump unit 4
 - drilling rig 11
 - stage loader 18,5

HYDRAULIC SYSTEM

Pumps types and quantity, pcs:
 - dual gear pump (250cm3)
1
 - 10 (control circuits and drilling rig manipulator)
1
Hydraulic motors:
218,5
 - rotary plunger type
2
Safety valves adjustment pressure in hydraulic lines, MPa:
 - of travel 14
 - of drilling rig manipulator 10
 - of control circuits 2

Drafts
 Roadheader MPL-22 (top view)  


 Roadheader MPL-22 (side view)