Rotary disc crusher and its examples
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Heavy introduction of design and manufacturing technology from Nordberg, USA, produced an ultra-fine crusher -rotary disc crusher. At present, foreign superfine crushers are almost all derived from cone crushers . Only such rotary disc crushers are designed for the production of fine-grained materials. It is capable of breaking a wide range of materials into a wide range of products with fine particle size and good shape, and is more efficient and economical than other crushers.
The crushing action of the rotary disc crusher is the laminating crushing between the particles, which is broken by the combined action of the mutual impact and grinding of the multi-layer material particles, is the particle-to-particle crushing, and the material is broken in the longitudinal direction. This machine is mainly used for the production of artificial sand, mixed sand, fine aggregate for asphalt concrete, dense material, cubic sand, sand for roofing materials, and can provide uniform feeding for rod mill and ball mill , thus improving the production of mill. ability.
The rotary disc crusher includes transmission, support sleeve, adjustment sleeve, eccentric sleeve, bowl bearing, crushing cone, distributor, liner, spring insurance and lubrication (Fig. 1). The rotational motion of the motor is transmitted to the eccentric sleeve through the pulley, the drive shaft and the bevel gear, causing it to rotate around the center line of the crusher. When the eccentric sleeve rotates, the crushing cone supported on the spherical bearing rotates around the fixed point, so that the lower liner sometimes approaches and then leaves the upper liner. Whenever the lower liner leaves the upper liner, the material from the distributor enters the grinding chamber from above, and the material is broken by the swinging movement of the body, and the pressure generated by the height of the material in the grinding chamber gradually makes the material gradually outward. Advance, and finally discharged through the grinding chamber from the discharge opening in the lower part of the crushing cone.
Model specification meaning example PP1213: P crusher, P - rotary disc type, 12 - broken cone bottom diameter (dm), 13 - throat size (mm).
The technical performance parameters of the PP-type rotary disc crusher are listed in Table 1. The equipment outline and installation dimensions are shown in Figure 2 and Table 2, respectively.
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Table 2 PP type rotary disc crusher shape and installation size (mm)
Broken cone bottom diameter
600
914
1219
1676
2134
Rack flange size
Rack flange size
Rack flange size
Rack bottom cover diameter
To the bottom of the bottom cover of the rack
To the top of the support sleeve
Maximum outer diameter of the bearing sleeve
To the drive shaft end
Space required to remove the drive pedestal
To the maximum height of the top of the hopper
Adjust the screw top to the feed bracket
Space required to remove the adjustment sleeve
Adjust the height of the sleeve
Adjust the maximum outer diameter of the cap
Space required to remove the spindle
Maximum diameter of the body or underlay
Spindle height
Maximum diameter of the spindle
Spring maximum outer diameter
To the top of the rotary feeder motor
Limb bolt hole spacing
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
U
V
W
Y
520
600
520
330
276
690
1330
1130
1570
1324
1395
1460
762
1000
1768
600
1078
160
1210
880
820
870
820
540
530
1057
2000
1413
2067
1753
2121
1448
987
1505
3204
1022
1946
229
1746
2140
1321
1069
1111
1069
686
889
1308
2585
1664
2483
2172
2537
3061
1254
2057
4248
1381
2337
330
2254
2635
1765
1448
1381
1448
800
794
1530
3277
2461
3493
2710
2975
3632
1524
2432
3791
1803
2261
406
2870
3251
2260
1651
1765
1651
902
1029
2191
4242
2962
4315
3251
3664
4261
1711
3099
5328
2210
2832
495
3772
3778
2489