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Tel: +7(473) 244-70-12

News

 
05.12.2017
   The representatives of “Klesovski quarry “TECHNOBUD” company came to see the commissioning and testing works of the throw screen GIT52M.   The testings went well and the customers were remained satisfied with the new equipment. A maintenance engineer Cherota R.
 
23.11.2017
  The 12-th International Exhibition “Mining equipment, extraction and concentration of ores and minerals” MWUz-2017 took place on November 15. This is the major international exhibition of mining and metallurgical complex in Uzbekistan, that unites the leading manufacturers and sp
 
22.11.2017
  LLC HC “Rudgormash” manufactured the new throw screens GST-62B and sent them to the client.  The throw screens were produced for the needs of PJSC “Severstal” (Cherepovets metallurgical complex) according to the customer’s documentation.  The throw s


 

The drilling equipment

Drilling rig SBSH-250D with the diesel drive.

Drilling rig SBSH-250D with the diesel drive.
 
Rotary drilling rig SBSH-250D serves to drill blast holes of 200-270mm in diameter in hard highly abrasive ores. Diesel drilling rig is an autonomous machine which economizes the time and expenses on moving the drill to a new place and it can be done totally independent from electric network rewiring. The diesel engine Cummins QSK19 with 650h.p. capacity is notable for its low fuel consumption and efficiency. In-line arrangement of the compressor, the engine and the pumping unit make the servicing of these parts easier. The fuel tank of 2,5 m³ provides a 24-hour non-stop operation of the drill. The traveling of the rig, its leveling, lifting and lowering of the mast, the drill tool feed and its rotation as well as screwing of the rods is performed by the hydraulic drive.

Hydraulic drive based on the mobile Bosch Rexroth hydraulics provides highly reliable work of the drill, smoothness of operations, eliminated hydroshocks, reduction of noise and vibration and precision in operations regulation. Capacity of the regulated pumps is set automatically by the feedback system and depends on the speed of the performed operations which is set by the distributor with proportional control. The hydraulic drive has an idle mode which allows to keep the hydraulic system in stable temperatures of instant readiness. This mode has proved to be valuable in freezing winter conditions. When all hydraulic operations are switched off, the pumps are set at a minimal working capacity to pump 10-15 l/min of the power oil through the block of hydraulic system.

Upon customer’s request the drilling rig can be equipped with the compressor of 28m³/min or 40m³/min capacity depending on the diameter of drilling.

Rational arrangement of the main units of the drill provides stability of the machine during drilling or traveling.

The mast frame is of closed type with spacer blocks. The strengthened design of the anchor bar that holds the mast swing cylinders provides durability and reliability of the mast at the thrust force of 35 tons and the torque of 1300 kgm.

The cable-polyspast feed drive system (with two hydraulic cylinders) of the drill tool damps down bumps and vibrations when drilling fractured rocks.

The supporting unit and the rotating units are separated. This is done to protect the rotating unit from bumps and vibrations.

The cabin has been enlarged. It has a window heater, insulation of walls, floor and ceiling. The cabin has a wooden floor with rubber covering, an air heater and an air conditioner.

There is also an anti-vibration chair, two control panels with an indicators block showing the main drilling parameters like the depth of drilling, the speed of sinking, spindle rotation frequency and etc. This simplifies the drill operation and increases comfort of the operator.

Upon customer’s request we can offer a set of equipment to refit the machine for drilling blast holes of 170-311 mm in diameter.



 TECHNICAL CHARACTERISTICS OF SBSH-250D DRILL WITH DIESEL DRIVE.

 

Тype of drill

 

SBSH of rotary type

 

Temperature conditions

 

 

from -400С up to +500С

 

 

Rock hardness according to prof. Protodyakonov scale

 

 

6…….20

 

 

Hole diameter, nominal, mm

 

 

200……270

 

 

Rod length, m

 

 

9,85

 

 

Number of rods, items.

 

 

4(3 in a separator)

 

 

Max. depth of drilling, m

 

 

37

 

 

Incline of the hole to the vertical, degree.

 

 

0-30 (or every 5 degrees).

 

 

Feed drive system

 

 

Two hydraulic cylinders, 4-fold cable-polyspast system

 

 

Max. feed thrust, tf.

 

 

Up to 35

 

 

Speed of drill tool thrust when drilling, m/min

 

 

Continuously variable from 0 to 6

 

 

Max. speed of drill tool thrust, m/min:



- lifting

- lowering

 

 

 

 32

25

 

 

Max. drill tool rotation frequency, rpmin 

 

Continuously variable from 0 to 150

 

 

Max. torque on the bit, kgs*m

 

 

1300

 

 

Rotation unit drive

 

 

Two hydraulic motors by Bosch Rexroth

 

 

Dust suppression

 

 

wet, dry (at your choice)

 

 

Type of engine

 

 

Diesel engine QSK19 Cummins

 

 

Engine capacity, kW (h.p.)

 

 

485 (650)

 

 

Nominal rotation frequency, rpmin 

 

1800

 

 

Type of fuel

 

 

Diesel fuel according to GOST 305-82 (Russian State Standard)

 

 

Specific fuel consumption, l/kW*h

 

 

0,24

 

 

Hourly average fuel consumption at optimal loading of the engine, l

 

 

65

 

 

Operating capacity of fuel tank, l

 

 

2500

 

 

Тype of the coolant in the engine cooling system

 

 

Tosol-А40М (Tosol-А65М)

 

 

Volume of the coolant in the cooling system , l.

 

 

390

 

 

Prestart warm up of the engine and compressor

 

 

heaters «Eberspecher»

 

 

Electronic control and monitoring of the engine

 

 

Electronic module ECM of the engine

 

 

Compressor capacity, m3/min

 

 

28; 40 (at your choice)

 

 

Compressed air pressure (excess), MPa (kgs/sm2)

 

 

0,7 (7)

 

 

Compressor air end

 

 

By leading manufacturers

 

 

Compressor drive

 

 

From the engine to the clutch “Stromag”

 

 

Electronic control and monitoring of the compressor

 

 

Compressor controller

 

 

Type of the pumps

 

 

Pumping unit by Bosch Rexroth includes :

- 2 regulated axial-piston pumps with a tilted block;

- 2 regulated axial-piston pumps with a wabble plate

 

 

Pump drive

 

 

From the engine through the clutch “Stromag”

 

 

Drive of the engine cooling fans, the compressor, thehydraulics and of the dust suppressing system

 

 

Axial-piston hydraulic motors by Bosch Rexroth

 

 

Drive of the crawler-mounting system

 

 

Two regulated axial-piston hydraulic motors by Bosch Rexroth with the charge-and-safety brake valves

 

 

Control switch gear

 

 

Section blocks by Bosch Rexroth с LS-control of М4 type

 

 

Max. operating pressure, kgf/sm2

 

 

250

 

 

Type of power fluid

 

 

Mineral oil of multigrade low-temperature hydraulic type

 

 

Filtration of power fluid

 

 

Filters «МР FILTRI»

- pressure filter (filtering degree- 10 micron);

-discharge filter (filtering degree- 10 micron);

-intake filter (filtering degree — 25 micron).

 

 

Mounting of the drill

 

Crawler mounting 

 

Traveling speed

 

Up to 2,5 -regulated

 

Max. grade-ability of the traveling drill, degrees.

 

12

 

Number of leveling jacks, items

 

3

 

Length of jack stroke, mm

 

 

1000

 

 

Heating of the water tank (for wet dust suppression)

 

 

Torch heater 

 

Heating of the cabin

 

 

Air heater by Eberspecher

 

 

Air conditioner

 

 

On-roof air conditioner by Webasto

 

 

Overall dimensions of the drilling rig, m

with the mast up:

-length

-width

-height

with the mast down:

-length

-height

 

 

 

 

10,5

5,7

18,4

 

17,8

6,6

 

 

Mass, kg

 

90 000

 

Additional equipment by request

 

Centralized lubrication by Linkoln
Automatic fire extinguishing system
Automated data collecting system
«Кобус»
welding generator

 

Optional by request:

  1. Nominal hole diameter, mm.

  2. Length of jack stroke, mm.

  3. Length of drilling rod, m

 

311 (3 rods, drilling depth 27 meters)

1200

11,4 (drilling depth 43 meters)

 

  «MMC RUDGORMASH»
tel/fax +7 (473) 244-70-12
E-mail: export@rudgormash.ru