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INTERMEDIATE AND FINE CONE CRUSHERS

TYPES OF CRUSHERS

EKG12

OMZ manufactures cone crushers with 1750, 2200 and 3000 mm crushing head diameters. These crushers are available with two types of crushing chambers: KCД for intermediate crushing and KMД for fine crushing. These types of crushing chambers are also available with modifications for coarse crushing (Гp,Гp2) and for fine crushing (T). Additional options include: remote control (Д), feed distributor (П) and vibro isolated base (B). Special designed crushers capable of taking unusually large feed pieces and producing finer or cubed finished product are available on request. The designation of a crusher includes abbreviations denoting its type, crushing head base diameter, modification of crushing chamber and additional modification (if any). Example: a crusher for fine crushing with crushing head base diameter of 2200 mm, crushing chamber modification T, remote control and feed distributor is designated as KMД-2200T-ДП.

Technical data of KCД crushers

Crusher size Type of chamber Feed opening A, mm Discharge opening Capacity (m3 /h) for open circuit with discharge settings B, mm Electric motor Weight
15 20 25 30 35 40 50 60 65 70 80 Power, KW RPM Voltage, v
KCД-1750гp2 Extra coarse 350 35-65         230 260 320 370 400     160 740 380 51
KCД-1750гp Coarse 250 25-60     180 200 220 240 280 320      
KCД-1750T Fine 200 15-30 150 135 160 190              
KCД-2200гp2 Extra coarse 450 35-65         500 550 660 760 820     250 490 6000 87
KCД-2200гp Coarse 350 30-60       420 465            
KCД-2200T Fine 275 15-30 180 240 300 360               400 590 6000 230
KCД-3000гp Coarse 600 50-80             950 1115 1200 1280 1450
KCД-3000T Fine 475 25-50     650 700 750 800 900        

Technical data of KMД crushers

Crusher size Type of chamber Feed opening A, mm Discharge opening Capacity (m3 /h) for open circuit with discharge settings B, mm Electric motor Weight
5 6 7 8 9 10 12 15 20 25 Power, KW RPM Voltage, v
KCД-1750гp Coarse 130 9-20         135 140 150 170 200   200 740 380 51
KCД-1750T Fine 80 5-15 85 100 110 112 115 120 130 140    
KCД-2200гp2 Extra coarse 200 15-25               315 365 410 315 590 6000 90
KCД-2200гp Coarse 140 10-20           220 240 270 325  
KCД-2200T Fine 100 5-15 160 180 188 195 202 235 250      
KCД-3000гp Coarse 220 15-25             500 575 650   400 590 6000 225
KCД-3000T Fine 85 5-15 300 330 360 375 390 410 435 475    
 

◊ Capacities given for crushing dry materials with a compression strength of 100-150 MPa and appropriate prepared feed (limited fines content, clay particles etc).

◊ To ensure an effective operation of the crushers under specific conditions consult the OMZ specialists.

◊ Crusher weights given without electrical, lubrication and hydraulic equipment.

 
1 Feed Unit Feed Plate 16
2 Bowl unclamping hydraulic cylinders Crushing Head 17
3 Bowl clamping systems Bowl clamping springs 18
4 Bowl Mantle 19
5 Adjustment ring Dust seal 20
6 Bowl liner Hydraulic clearing system 21
7 Socket liner Eccentric gear 22
8 Socket Pinion 23
9 Spring release system High flexible coupling 24
10 Arm guard Countershaf 25
11 Main frame Countershaft bushing 26
12 Inner eccentric bushing    
13 Outer eccentric bushing    
14 Eccentric    
15 Eccentric step bearing plates    
 

The front-end equipment is manufactured of high-strength steels, ensuring trouble-free operation under high dynamic loads. A specific geometry of dipper allows to load rocks into the trucks with 75 -120 t capacity, and also into the railway dumpcars.

Rotation gears are planetary. They are more compact and reliable in comparison with cylindric ones. The equally-spaced location of gears excludes a radial loading on bearing of king journal.

The boom is hold in the operative position with four guys, ensuring reliability in operation.

The crawler is with open large rollers, with arranged above the ground tumbler sprockets, equipped with replaceable driven teeth. Driven electric motors, located on

aclinal bracket, provide easiness of erection, centering adjustment and execution of repair works. The forced air-cooling of the propel motors provides unlimited practically drive operating regime at travel along prepared route at the velocity up to 1.1 km/h.

Two-axis hand-worked command-apparatuses, the devices for vibration insulation of operator seat and air-conditioning system create the comfortable conditions for excavator driving.

Electric drive of the shovel main mechanisms is made as the motor-generator system, controlled by thyristor energizers.

Electric driver control system provides optimal mechanical characteristics of drive at high efficiency. Electric drive system is easy to maintain, reliable and provides low operation expenses.

 

Production of uniform, high quality crushed product with high efficient – is the characteristic features of our crushers. The unique methods of calculations in combination with foremost software allow to create crushers which fulfill all requirements of our customers

  • Reliable gripping of large feed pieces.
  • Breaking all pieces with such deformations that will not lead to material compaction and crusher overloads.
  • Compression of each piece in the calibrating zone thus maintaining the required product size.
  • Free flow of material between compressions thus contributing to high outputs.
  • The software developed by the OMZ research center enables us to combine the most suitable crushing chamber shape and head angle, eccentricity and crushing head gyration frequency to minimize the power and liners consumption at the specified product size and capacity.

Hydraulic setting

◊ Ensures a stable crushed product quality, eliminates time and labor consuming manual adjustments.

◊ To adjust the discharge opening the bowl is rotated in the adjustment ring thread using the bowl clamping and rotating devices.

◊ The bowl is clamped for crushing due to axially tightening with a set of precompressed coil springs arranged on the threaded ring flange. To release the clamping force before adjustment hydraulic cylinders are actuated and compress additionally the springs.

◊ The bowl rotating device consists of a hydraulic cylinder with a ram attached on a vertical post.

◊ The device may be operated automatically, when all movements of one adjustment cycle, corresponding to cap rotation angle equivalent to one tooth pitch, are performed sequentially. Otherwise, each movement may be controlled manually.

Typical product gradations

Open circuit product analysis (% passing) for given closed side setting (CSS):

Product size, mm Closed side setting (CSS), mm
5 6 8 10 12 15 20 25 39 40 50 65 80
140                         100
120                       100 94
100                     100 94 84
80                   100 96 83 72
65                 100 97 87 72 58
50               100 98 85 73 54 42
40             100 96 89 72 56 42 33
30           100 94 84 72 52 40 30 24
25         100 97 85 72 60 42 33 25 20
20       100 97 89 73 58 45 33 26 19 15
15     100 93 85 72 52 40 33 24 20 14 12
12   100 93 83 72 57 40 32 26 19 16 12 11
10 100 98 85 72 59 45 33 26 22 17 14 11 10
8 96 89 72 56 45 35 26 20 18 15 13 10 9
5 72 60 42 33 27 21 17 14 13 11 10 9 8
3 40 33 24 20 17 14 12 11 9 8 7 6 5
 
  • Product sizes given for working discharge openings which exceed the set openings by the value associated with clearances in the eccentric bearings.
  • The product size percentages are given for crushing crystalline materials of non-plate texture and may depend on the crushing chamber type selected, feed size, moisture or clay content in the feed, or other factors.
  • The expected product size gradation for individual conditions may be determined in the OMZ research center by laboratory tests of feed samples from the customer.
  • The accurate product size gradation for specific conditions should be determined by actual testing.
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