KSP-22
 
 
 
 
 
Description

KSP-22

This new having no analogues light duty roadheader with the performance exceeding the existing machines of the same class is designed to mechanize breaking and loading the mined rock while driving mine workings of rounded, arched, trapezoidal and rectangular forms of section in coal and mixed faces (50% of coal and 50 % of rock) with single-axis compressive strength of up to 80 MPa and abrasivity not more than 15 mgs with an inclined gradients 12 in mines hazardous on gas (methane) and coal dust. Working rock section driven by the machine from one placing is 8..17m2.

 

Features

  • Robust cutting boom powered by a 55 or 75 kW air cooled electric motor
  • Cutting head with efficient pick face flushing facility
  • Telescopic action to allow cutting head to be sumped in with the machine stationary and therefore independent of floor conditions
  • Center scraper chain conveyer built for abrasive applications
  • Crawler tracks which are independently operated to give maximum machine maneuverability for working on steep gradients and poor floor conditions
  • Real floor sprag jack to increase machine stability in adverse cutting conditions
  • Loading apron performs as a front support
  • Scraper conveyor and stage loader enable to use the machine with various type of excavated material handling



Parameters
Ultimate strength of rocks breaking, smp, MPa, min
70 (f=5)
Permissible ultimate strength of rocks constituting
max 10% in the volume of coal cutting with rock, MPa
80
Rock abrasivity, mg, max
15
Output, m3/min
 
 - in coal and coal-cutting with rock
1,42
 - in coal and coal-cutting with rock, smp. 80 MPa 
0,25
Rough dimension of drivage, m
 
 - height
2.1 4.45
 - width
3.0 5.2
Gradients of driven working, degrees
12
Cutting boom swing, mm:
 
 - height
4450
 - below ground level
180 (420*)

Cutting boom

Type
boom with linear-axial cutting head
Telescoping travel, mm
550
Rated power of the cutting head electric motor, kW
75 (55*)
Cutting head rotation frequency, min -1
52
Cutting rate at the max. diameter of the cutting head, m/s
1.4

Feeder

Type
loading apron with gathering arms
Gathering arms gear
hydro-mechanical, kinematically uncoupler
Swinging of arms, min-1
30
Feeder width, mm, max
3100 (2100*)
Lowering of the feeder lip below ground level, mm. max
200 (420*)

Chassis

 
crawler type
Chassis drives
hydro-mechanical, kinematically uncoupled
Traveling speed, m/min.:
 
 - working speed (with loading)
1.1
 - maneuvering speed (without loading)
4.8 (5.8*)
Track width, mm
530
Clearance, mm
190

Scraper conveyor

Type
scraper twin-chain with a rigid or lift and swivel stand
 
twin-motor electromechanical gear
Trough width, mm
450
Chain speed, m/s
0.9
Conveyor throad height, mm
400

Stage loader

Type
belt conveyor fitter to the rear side of the roadheader and to the monorail carrier
 
electromechanical drive
Electric drive motor, kW
18.5
Belt width, mm
650
Belt speed, m/s
1.50
Length, mm
11400

Flushing System

Flushing points
cutting head/material transfer from the scraper conveyor/from the stage loader
Water pressure in the flushing system, MPa, min
1.5
Water discharge for the cutting head flushing, l/min, max
60

Overall machine dimensions in a transportation position, mm

 - length (without stage loader)
11200
 - width over crawler
1970
 - width over feeder
3100 (2100*)
 - height over body
1600
Voltage, V
660 (500*)
Rated current frequency, Hz
50
Total rated power of electric motors including, kW
173.2
Weight, t
30
Ground pressure, MPa
0.1
Clearance, mm
190

* "SB version"