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Speed Steel

Critical ball mill speed is key but hard to do

Ball mills are widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materials.

Henan Hongxing is a professional mining machinery manufacturer which is specialized in jaw crusher, sand maker, grinding mill, ball mill, flotation machine etc. In order to give some useful suggestions on ball mill usage, here we analyze the factors affecting the production efficiency, hoping to provide some help and support for our customers.

In respect of rotating speed control, the high-efficiency production is very limited. In the meantime, only if you control the rotating speed well can you control the consumption of steel ball.

When the rotating speed of ball mill is high, the height that the ball has to be raised is high. The ball will get away from the barrel when the ball rises to certain height, and falls along the parabolic path. There is comparatively large impact force on drop point. When the ore is crushed by the impact force, the grinding effect is highest.

When the rotating speed of ball mill exceeds a certain speed (with much higher speed), the steel ball will rotate with the barrel and wont fall down, in a condition of centrifugal movement. There is no impact force, so the grinding function is much less, and the ball mill stop grinding. The ball mill rotating speed is called critical speed when the outmost layer balls just rotate with the barrel and dont fall.

The critical speed of various ball mills is in direct proportion with its diameter, the absolute figure of critical speed is hard to calculated, and now only the calculation formula on critical speed in theory is widely used. When the non-smooth lining plate is used, the filing ratio of ball load is among 40%~50%. When the ore-grinding concentration is larger, the grinding effect is close to the practical production.

So in the production of ball mill, to control the critical rotating speed reasonably can realize the effective control on the steel ball consumption. Meanwhile the lower on ball consumption will decrease the ore grinding production cost. Comprehensively considering, control the ball mill rotating speed perfectly will greatly improve the ball mill production efficiency and decrease the energy consumption of ball mill specific yield.

With its high quality products such as Flotation machine、Rock cone crusher、Cement mill price、Henan Hongxing mining machinery Co.Ltd has ascended in the front rank of the world in the exporting of mining equipments.

Ore vibrating feeder : http://www.hxjqcrusher.com/Electromagnetic.html

Aggregate jaw crusher : http://www.hxjqcrusher.com/crusher/Stone-jaw-crusher.html

Ore flotation equipment : http://www.china-crusher.com/floatation-machine5.html

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kfdrsd series killer force high speed steel reduced shank drill bit black gold
kfdrsd series killer force high speed steel reduced shank drill bit black gold
$22.23
dwddl series high speed steel reduced shank extra long drill bit black oxide
dwddl series high speed steel reduced shank extra long drill bit black oxide
$169.27
ROYAL ENFIELD STEEL CLUTCH PLATE PRESSURE PLATE 4 SPEED GENUINE ORIGINAL 597326
ROYAL ENFIELD STEEL CLUTCH PLATE PRESSURE PLATE 4 SPEED GENUINE ORIGINAL 597326
$16.98
dwdrsd series qualtech high speed steel economy reduced shank drill bit black
dwdrsd series qualtech high speed steel economy reduced shank drill bit black
$31.82
dwdrsd series qualtech high speed steel economy reduced shank drill bit black
dwdrsd series qualtech high speed steel economy reduced shank drill bit black
$23.09
Micro Stop Countersink w High Speed Steel Cutters Kit w 213040 NEW
Micro Stop Countersink w High Speed Steel Cutters Kit w 213040 NEW
$37.99
Century Drill and Tool 06903 Three Piece High Speed Steel Jig Saw Set Case of 3
Century Drill and Tool 06903 Three Piece High Speed Steel Jig Saw Set Case of 3
$13.29
Century Drill and Tool 06905 Five Piece Alloy High Speed Steel Jig Saw Set 3 pk
Century Drill and Tool 06905 Five Piece Alloy High Speed Steel Jig Saw Set 3 pk
$17.38
Century Drill and Tool 06908 Eight Piece Alloy High Speed Steel Jig Saw Set 3 pk
Century Drill and Tool 06908 Eight Piece Alloy High Speed Steel Jig Saw Set 3 pk
$26.59
Vermont American 13270 5 16 High Speed Steel Extension Length Drill Bit
Vermont American 13270 5 16 High Speed Steel Extension Length Drill Bit
$18.00
10 248 716 Staggered Side Tooth High Speed Steel Metal Slitting Saws Tool Mate
10 248 716 Staggered Side Tooth High Speed Steel Metal Slitting Saws Tool Mate
$395.45
17 048 203 Special Thread High Speed Steel Round Adjustable Die CUTTING DIRECT
17 048 203 Special Thread High Speed Steel Round Adjustable Die CUTTING DIRECT
$25.64
61090 Type 27 UB 5 16 24 Right Hand High Speed Steel Hexagon Threading Die
61090 Type 27 UB 5 16 24 Right Hand High Speed Steel Hexagon Threading Die
$9.17
REGAL BELOIT HIGH SPEED STEEL CUTTING BLADE
REGAL BELOIT HIGH SPEED STEEL CUTTING BLADE
$22.85
2Pk Cobalt Drill Bits 48mm Hand Tools Power Drilling High Speed Steel
2Pk Cobalt Drill Bits 48mm Hand Tools Power Drilling High Speed Steel
$8.95
Hss Blacksmiths Drill Bit 16mm Steel Plastic Wood Aluminium High Speed
Hss Blacksmiths Drill Bit 16mm Steel Plastic Wood Aluminium High Speed
$12.57
17Pce Hss Titanium Coated Drill Bits High Speed Steel Heavy Duty Work Tool
17Pce Hss Titanium Coated Drill Bits High Speed Steel Heavy Duty Work Tool
$14.71
Stanley Tools Hacksaw Blades High Speed Steel Molybdenum 2 0 15 906
Stanley Tools Hacksaw Blades High Speed Steel Molybdenum 2 0 15 906
$42.88
31 32 Drill Bit Reduced Shank High Speed Steel Metal Cutting Black Oxide NEW
31 32 Drill Bit Reduced Shank High Speed Steel Metal Cutting Black Oxide NEW
$19.88
Power Tools 15 Black Gold Oxide Reduced Shank Drill Bit High Speed Steel Body
Power Tools 15 Black Gold Oxide Reduced Shank Drill Bit High Speed Steel Body
$47.22
Drill America DWDRSD Series Qualtech High Speed Steel Economy Reduced Shank
Drill America DWDRSD Series Qualtech High Speed Steel Economy Reduced Shank
$14.39
Irwin 81126 8pk No 26 High Speed Steel Drill Bit New
Irwin 81126 8pk No 26 High Speed Steel Drill Bit New
$19.50
Irwin 81126 4pk No 26 High Speed Steel Drill Bit New
Irwin 81126 4pk No 26 High Speed Steel Drill Bit New
$12.50
Irwin 81126 2pk No 26 High Speed Steel Drill Bit New
Irwin 81126 2pk No 26 High Speed Steel Drill Bit New
$7.99
Precision Twist 500 6 High Speed Steel Extra Long Drill Bit Black Oxide Finish
Precision Twist 500 6 High Speed Steel Extra Long Drill Bit Black Oxide Finish
$39.99
Klein Tools 12 in Replacement Bi Metal Hacksaw Blade High Speed Steel 100 pack
Klein Tools 12 in Replacement Bi Metal Hacksaw Blade High Speed Steel 100 pack
$263.88
Milwaukee Shockwave Impact Duty Thin Wall Hole Saw 1 1 8 Inch High Speed Steel
Milwaukee Shockwave Impact Duty Thin Wall Hole Saw 1 1 8 Inch High Speed Steel
$18.96
AIR DIE GRINDER REAR EXHAUST MSI PRO Heavy Duty Lightweight Steel Body Speed
AIR DIE GRINDER REAR EXHAUST MSI PRO Heavy Duty Lightweight Steel Body Speed
$40.64
2 NEW AUTHENTIC DREMEL 654 ROUTER BIT HIGH GRADE STEEL HIGH SPEED CUTTER
2 NEW AUTHENTIC DREMEL 654 ROUTER BIT HIGH GRADE STEEL HIGH SPEED CUTTER
$8.99
9440 Plain High Speed Steel Metal Slitting Saw Tool Material HSS Arbor H
9440 Plain High Speed Steel Metal Slitting Saw Tool Material HSS Arbor H
$106.50
Drill America KFDRSD Series Killer Force High Speed Steel Reduced Shank Drill
Drill America KFDRSD Series Killer Force High Speed Steel Reduced Shank Drill
$4.76
Drill America DWDRSD Series Qualtech High Speed Steel Economy Reduced Shank D
Drill America DWDRSD Series Qualtech High Speed Steel Economy Reduced Shank D
$14.78
Blue Bird 02H 5013 High Speed Steel Long Tape Measure
Blue Bird 02H 5013 High Speed Steel Long Tape Measure
$35.69
Drill America DEWCBR Series Qualtech High Speed Steel Pilot for Counterbore 3 1
Drill America DEWCBR Series Qualtech High Speed Steel Pilot for Counterbore 3 1
$12.70
14 120 121 High Speed Steel Special Thread Taps Taper Straight flute 1 7 8 Righ
14 120 121 High Speed Steel Special Thread Taps Taper Straight flute 1 7 8 Righ
$160.89
Hss Blacksmiths Drill Bit 20mm Steel Plastic Wood Aluminium High Speed
Hss Blacksmiths Drill Bit 20mm Steel Plastic Wood Aluminium High Speed
$13.95
15 116 028 Right Hand High Speed Steel Adjustable Round Split Die CUTTING DIRE
15 116 028 Right Hand High Speed Steel Adjustable Round Split Die CUTTING DIRE
$10.21
AUCTION HIGH SPEED STEEL 1 4 28 PLUG NEW TAP
AUCTION HIGH SPEED STEEL 1 4 28 PLUG NEW TAP
$3.50
Bosch Tools 3 3 8 High Speed Steel Pilot Bit HB85PB NEW
Bosch Tools 3 3 8 High Speed Steel Pilot Bit HB85PB NEW
$9.99
Bosch Tools 2pk High Speed Steel Pilot Bit HB85PB NEW
Bosch Tools 2pk High Speed Steel Pilot Bit HB85PB NEW
$11.00


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