CN208695162U - A kind of ball mill steel ball - Google Patents
A kind of ball mill steel ball Download PDFInfo
- Publication number
- CN208695162U CN208695162U CN201821083584.3U CN201821083584U CN208695162U CN 208695162 U CN208695162 U CN 208695162U CN 201821083584 U CN201821083584 U CN 201821083584U CN 208695162 U CN208695162 U CN 208695162U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- spherical
- diameter
- dumbbell
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model belongs to field of metallurgy more particularly to a kind of ball mill steel ball, and the steel ball shape is that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.That the utility model has the advantages that is good to material crushing effect, grinding efficiency is high, abrasive product partial size is small.
Description
Technical field
The utility model belongs to field of metallurgy more particularly to a kind of ball mill steel ball.
Background technique
The ore dressing process of mine metallurgy, ball mill are crucial and important equipment, and steel ball is ground as important in ball mill
Component is ground, the superiority and inferiority of performance will directly determine the quality and grinding efficiency of powder.Ball mill includes the cylindrical tube of accumbency,
A certain amount of steel ball, steel forging are added in cylinder, cylinder inner surface is inlaid with waveform liner plate, and the material being ground continuously falls into cylinder
Internal portion, cylinder is dragged by external force to be rotated, and after steel ball and material are taken up by waveform liner plate, is left and is rushed down along barrel and fall, block
Shape material is hit by the throwing of steel ball and mills into after granular material, flows continually out or carries cylinder outside by medium, completes grinding
Process.
The ratio of inventory and steel ball amount determines the yield and quality of process of lapping in steel ball grinding cylinder, and material is with respect to steel
The ratio of ball is excessive or very few, can all cause to grind yield reduction, grinding quality decline and power consumption raising.Inventory compares steel
Ball amount is excessive, and steel ball is flooded wherein by material, and material effectively cannot be struck and be ground by steel ball, grinding efficiency and quality decline,
Material is very few with respect to steel ball ratio, and for a large amount of energy consumptions in the impact and process of lapping between steel ball, grinding efficiency is extremely low.
Traditional grinding steel ball is the spherical shape of standard, and big ball is mainly used for being crushed, and bead is mainly used for grinding, big ball, small
Gradation uses ball according to a certain percentage.But the steel ball of prior art spherical shape, surface area is smaller, steel ball to the broken of material and
The efficiency of grinding is all smaller, and there are also the spaces promoted.
In the ore dressing process of mine field of metallurgy Tin concentrate, Tin concentrate crushing grinding is sorted using ball mill, is made
With ball mill to sulphide ore crushing grinding carry out sorting recycling Tin concentrate, require good to material crushing effect, grinding efficiency is high,
Abrasive product partial size is small.
Application No. is the Chinese patents of 201320694044.X, disclose a kind of ball mill grinding steel ball, and steel ball is cylinder
Body is the top and bottom of arc surface plus outer surface, the shock surface of steel ball itself is increased, to increase grinding-material
Stress surface keeps grinding-material fast at powder, dispatches, and saves the energy；The service life of steel ball can be extended by opening up groove in steel ball side.
But the cylindrical portion of the steel ball is bad to the crushing grinding effect of material, and the cylindrical portion of steel ball and steel ball connects
Contacting surface product is small, and grinding efficiency is low, abrasive product partial size is big.
Utility model content
The utility model provides a kind of follow-on steel ball, with good to material crushing effect, grinding efficiency is high, grinding produces
The small advantage of product partial size.
A kind of ball mill steel ball, which is characterized in that the steel ball shape is that dumbbell is spherical, and both ends are spherical structure, intermediate
For the arc structure that is recessed.
The spherical structure at steel ball both ends and the arc-shaped structure of centre, curved surface smooth transition are conducive to increasing contact
While area, abrasion is reduced.Sunk structure among steel ball, adapts to the spherical structure at other steel ball both ends, or adapts to
The spherical structure of plain ball is conducive to increase contact area, improves grinding efficiency.Sunk structure among steel ball, adapts to
Sunk structure among another steel ball can generate the shear action of a strength to material, be conducive to the broken of material.
As a kind of scheme, it is preferable that the diameter of steel ball both ends spherical shape is identical, diameter D, then the extreme length L of steel ball
For 1.3 to 2.8 times of D.
Steel ball length L is bigger, and steel ball linearly contacts between rod iron, abrasive media and material, milling area
Greatly, stick gap caused by the stick is regular compared with being, in strip one by one, this allows for producing again in grinding process
One effect --- sieving actoion.When accompanying particle between rod iron, coarse granule is first subjected to broken, and fine grained is then by certain journey
The protection of degree；When rod iron is lifted up along cylinder inboard wall, the fine grained being clipped between rod iron is flowed out from gap, and coarse granule is mentioned
It is raised to every layer of high-rise position, so that coarse granule be made to concentrate impact grinding when being fallen by rod iron.Just because of this choosing
The sieving actoion of selecting property, so that pulverizing and jevigating process is more efficiently, material grinds rear epigranular.
Preferably, most narrow width W is 0.61 to 0.88 times of D at the intermediate recess of steel ball.
Width W is smaller, and the surface area of steel ball is bigger, and contact area is bigger, and grinding efficiency is higher, but the intensity meeting of steel ball
It is deteriorated, is easy from intermediate broken.Width W is bigger, and the resistanee to rupture of steel ball can be better, but can reduce grinding efficiency.
Preferably, the radius of curvature R of steel ball intermediate recess circular arc is 0.55 to 1.25 times of D.
The radius of curvature R of steel ball intermediate recess circular arc is smaller, and the surface area of steel ball is bigger, and grinding efficiency is higher, but steel
The surface blending of ball surface is more lofty, is easy to increase the abrasion of steel ball itself.Radius of curvature R becomes larger, at steel ball intermediate recess
Close to flat, surface area becomes smaller, and the abrasion of steel ball itself is reduced.
Preferably, the spherical at steel ball both ends and intermediate recess arc surface seamlessly transit, when necessary, two curved surface junctions
Increase and is equipped with bridge joint curved surface.
The centre of steel ball and the connecting portion at both ends are easy to be worn if curved surface is unsmooth, are also easy to cause steel ball
It is reduced with the cooperation grinding effect of steel ball.
Preferably, lug boss is additionally provided on the spherical structure of steel ball both ends, the lug boss is hemispherical or arc-shaped.
Lug boss can further increase the surface area of steel ball, improve grinding efficiency.Lug boss can also extend the use of steel ball
In the service life, in use, what is be worn first is lug boss, after lug boss has been worn, steel ball be restored to normal shape after
It is continuous to use, to extend the service life of steel ball on the whole.
Preferably, steel ball is high-carbon high-manganese alloy cast ball, and surface hardness is greater than 63HRC, and volume hardness is greater than 61HRC, firmly
Degree is evenly distributed, and impact flexibility is greater than 12J/cm2, percentage of damage is lower than 0.3%.
High-carbon high-manganese alloy cast ball, hardness is high, good toughness, long service life, and percentage of damage is low.
Preferably, the lug boss on the spherical structure of steel ball both ends is identical as steel ball ontology material, integrally same with steel ball ontology
When casting and forming.
Lug boss integrally forms simultaneously with steel ball ontology, and compared to the connection type inlayed, structure is stronger, makes work
Skill is simpler.
Preferably, the diameter D of steel ball both ends spherical shape be 120mm, 110mm, 100mm, 90mm, 80mm, 70mm, 60mm,
50mm, 45mm, 40mm, 35mm or 30mm.
Alternatively, it is preferable that the diameter of steel ball both ends spherical shape is different, and diameter is respectively D1, D2, D1:D2=
0.618~1.618.
Preferably, the extreme length L of steel ball is 1.3 to 2.8 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. L:
(D1+D2)=0.65~1.4.
Preferably, most narrow width W is the 0.61 of steel ball both ends spherical diameter D1 and D2 average value at the intermediate recess of steel ball
To 0.88 times, i.e. W:(D1+D2)=0.305~0.44.
Preferably, the radius of curvature R of steel ball intermediate recess circular arc is steel ball both ends spherical diameter D1 and D2 average value
0.55 to 1.25 times, i.e. R:(D1+D2)=0.275~0.625.
The diameter of steel ball both ends spherical shape is different, will necessarily bring the difference of steel ball barycenter distribution, steel when causing steel ball drop
Downward, upward, more ordered arrangement relatively between steel ball and steel ball is right for the small side of spherical diameter for the big side of the spherical diameter of ball
The fragmentation of material is stronger, improves grinding efficiency.
A kind of grading method of ball mill steel ball, which is characterized in that use dumbbell spherical balls combination general spherical shape steel ball
Gradation is carried out, wherein dumbbell spherical balls accounting (mass fraction) is 12% to 55%.
Spherical balls gradation is used alone, grinding efficiency is low, and abrasive product granularity is big；Dumbbell spherical balls grade is used alone
Match, mutually collision loss is big between dumbbell spherical balls, and grinding efficiency is not also high instead.It is combined using the dumbbell spherical balls general
The advantages of logical spherical balls carry out gradation, combine the two, realizes the effect that simple combination cannot play, substantially increases
The fine grinding degree of grinding efficiency and product.
As a preferred embodiment, using the dumbbell spherical balls of the same diameter (diameter of steel ball both ends spherical shape
It is identical) with the general spherical shape steel ball of same diameter carry out gradation, the diameter of dumbbell spherical balls and general spherical shape steel ball
Size is identical.
Dumbbell spherical balls are identical as the diameter of general spherical shape steel ball, and contact area can sufficiently extend increasing when grinding
Greatly, when especially plain ball matches grinding with the intermediate recess arc structure of dumbbell spherical balls, contact is close, grinding effect
Rate is high, and the partial size being ground is smaller.
Specific preferred embodiment can be, the diameter of dumbbell spherical balls and general spherical shape steel ball be 120mm, 110mm,
100mm, 90mm, 80mm, 70mm, 60mm, 50mm, 45mm, 40mm, 35mm or 30mm, dumbbell spherical balls accounting (quality point
Number) it is 28% to 55%.
As a preferred embodiment, using the dumbbell spherical balls of the same diameter (diameter of steel ball both ends spherical shape
It is identical) with the plain balls of two kinds of different diameter specifications gradation, the diameter of the plain ball are carried out, one kind being greater than dumbbell spherical shape steel
The diameter of ball, a kind of diameter less than dumbbell spherical balls.
Greater than the plain ball of dumbbell spherical shape steel ball size, biggish crushing force can be provided, is conducive to improve bulk materials
Crushing effect；Less than the plain ball of dumbbell spherical shape steel ball size, between plain ball and plain ball, plain ball and dumbbell
It, can be to object between the both ends spherical structure of spherical balls, between plain ball and the intermediate recess arc structure of dumbbell spherical balls
Material generates thinner grinding effect, provides and generates thinner grinding partial size.
Specific preferred embodiment can be, the diameter of dumbbell spherical balls is 110mm, 100mm, 90mm, 80mm,
70mm, 60mm, 50mm or 40mm, the diameter of general spherical shape steel ball is 120mm, 110mm, 100mm, 90mm, 80mm,
70mm, 60mm, 50mm, 45mm, 40mm, 35mm or 30mm, dumbbell spherical balls accounting (mass fraction) is 12% to 40%, general
The big ball (greater than the plain ball of dumbbell spherical shape steel ball size) and bead of logical steel ball are (common less than dumbbell spherical shape steel ball size
Steel ball) ratio be 1:10 to 1:0.1.
As a preferred embodiment, using the dumbbell spherical balls of the same diameter (diameter of steel ball both ends spherical shape
It is identical) with the plain balls of two kinds of different diameter specifications gradation is carried out, the diameter of two kinds of different size plain balls is respectively less than
The diameter of dumbbell spherical balls.
Dumbbell is spherical to be cooperated between dumbbell spherical shape, good to the crushing effect of bulk materials；Use the minor diameter of different size
Steel ball is combined, and is conducive to generate thinner grinding partial size.
Specific preferred embodiment can be, the diameter of dumbbell spherical balls is 120mm, 110mm, 100mm, 90mm,
80mm, 70mm, 60mm, 50mm or 40mm, the diameter of general spherical shape steel ball is 110mm, 100mm, 90mm, 80mm, 70mm,
60mm, 50mm, 45mm, 40mm, 35mm or 30mm, dumbbell spherical balls accounting (mass fraction) are 25% to 35%.
As a preferred embodiment, using the dumbbell spherical balls of the same diameter (diameter of steel ball both ends spherical shape
It is identical) with the plain balls of three kinds or more different diameter specifications gradation is carried out, dumbbell spherical shape steel ball size size is in
In the range of plain ball diameter specifications size.
Using the assembled scheme of more stages diameter specifications, it can more optimize the effect of grinding.
As a preferred embodiment, using the dumbbell spherical balls of the same format diameter (diameter of steel ball both ends spherical shape
It is different) with the general spherical shape steel ball of same diameter carry out gradation.
As a preferred embodiment, using the dumbbell spherical balls of the same format diameter (diameter of steel ball both ends spherical shape
It is different) with the plain balls of two kinds of different diameter specifications carry out gradation.
As a preferred embodiment, using the dumbbell spherical balls of the same format diameter (diameter of steel ball both ends spherical shape
It is different) with the plain balls of three kinds or more different diameter specifications carry out gradation.
The utility model has the advantages that
1, the dumbbell spherical balls of the utility model, structure optimization, the advantages of having gathered ball milling and rod milling, grinding effect
It is good, high-efficient.
2, the dumbbell spherical balls of the utility model, applicability is good, and in ball mill, dumbbell spherical balls and dumbbell are spherical
Between steel ball, between the both ends and plain ball of dumbbell spherical balls, equal energy between the intermediate position and plain ball of dumbbell spherical balls
Adaptation, grinding broken to material.
3, the dumbbell spherical balls of the utility model are high-carbon high-manganese alloy cast ball, and hardness is high, good toughness, and percentage of damage is low.
4, lug boss, long service life are additionally provided on the dumbbell spherical balls of the utility model.
5, the steel ball grading method of the utility model is combined grade using dumbbell spherical balls and general spherical shape steel ball
Match, it is good to material crushing effect, grinding efficiency is high, abrasive product partial size is small.
6, the steel ball grading method of the utility model can use the steel ball of a variety of different diameter specifications, and grinding effect is more
Good optimization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of dumbbell spherical balls；
Fig. 2 is the scale diagrams of dumbbell spherical balls；
Fig. 3 is the scale diagrams of dumbbell spherical balls；
Fig. 4 is the convex structure schematic diagram of dumbbell spherical balls；
Fig. 5 is that dumbbell spherical balls and general spherical shape steel ball cooperate schematic diagram；
Fig. 6 is that dumbbell spherical balls and multiple general spherical shape steel balls cooperate schematic diagram；
Fig. 7 is that dumbbell spherical balls and dumbbell spherical balls cooperate schematic diagram；
Fig. 8 is that dumbbell spherical balls and dumbbell spherical balls cooperate schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiments of the present invention, to the technical solution in the embodiments of the present invention
It is clearly and completely described, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
Embodiment 1
As shown in attached drawing 1,2, a kind of ball mill steel ball, steel ball shape is that dumbbell is spherical, and both ends are spherical structure, and centre is
Be recessed arc structure.The diameter of dumbbell spherical balls both ends spherical shape is identical, diameter D, and dumbbell spherical balls length L is 1.3 times
D, most narrow width W is 0.61 times of D, the curvature half of dumbbell spherical balls intermediate recess circular arc at the intermediate recess of dumbbell spherical balls
Diameter R is 0.55 times of D, and the spherical at dumbbell spherical balls both ends and intermediate recess arc surface seamlessly transit, two curved surface junctions
Increase bridge joint curved surface.Dumbbell spherical balls are high-carbon high-manganese alloy cast ball, and the diameter D of dumbbell spherical balls is 100mm.
Gradation, dumbbell spherical balls and general spherical shape steel ball are carried out using dumbbell spherical balls combination general spherical shape steel ball
Diameter is identical, and wherein dumbbell spherical balls accounting (mass fraction) is 55%.
As shown in Fig. 5, the intermediate position of dumbbell spherical balls is matched with plain ball, to material crushing grinding；Such as
Shown in attached drawing 6, the two-end part of dumbbell spherical balls is matched with plain ball, to material crushing grinding；As shown in Fig. 7,
Dumbbell spherical balls are matched with dumbbell spherical balls parallel misalignment, to material crushing grinding；As shown in Fig. 8, dumbbell is spherical
Steel ball and the interlaced cooperation of dumbbell spherical balls, to material crushing grinding.The crushing grinding mode illustrated above, it is comprehensive in ball
It works in grinding machine, it is good to material crushing effect, grinding efficiency is high, abrasive product partial size is small.
The present embodiment dumbbell spherical balls and grading method use on the ore-benificiating ball grinder of Tin concentrate, and unit power consumption is by original
The 24kWh/t come is reduced to 22.5kWh/t, reduces 6.3%；The following product of qualified grain size 0.074mm contains in ore grinding product
Amount has been increased to 28% by original 10% or so.
Embodiment 2
As shown in Fig. 4, a kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recessed
Fall into arc structure.The diameter of dumbbell spherical balls both ends spherical shape is identical, diameter D, and dumbbell spherical balls length L is 2.8 times of D,
Most narrow width W is 0.88 times of D, the radius of curvature of dumbbell spherical balls intermediate recess circular arc at the intermediate recess of dumbbell spherical balls
R is 1.25 times of D.The spherical at dumbbell spherical balls both ends and intermediate recess arc surface seamlessly transit.Dumbbell spherical balls are
High-carbon high-manganese alloy cast ball, is additionally provided with lug boss on the spherical structure of dumbbell spherical balls both ends, the lug boss be hemispherical or
Arc-shaped, lug boss is identical as dumbbell spherical balls ontology material, with the integrated casting and forming simultaneously of dumbbell spherical balls ontology.It is mute
The diameter D of bell spherical balls is 80mm.
The general spherical shape steel ball of two kinds of different diameter specifications is combined to carry out gradation, general spherical shape steel using dumbbell spherical balls
The diameter of ball is respectively 100mm, 60mm.Gradation ratio is plain ball (diameter 100mm): dumbbell spherical balls (diameter
80mm): plain ball (diameter 60mm)=24:12:64.
The present embodiment dumbbell spherical balls and grading method use on the ore-benificiating ball grinder of Tin concentrate, and unit power consumption is by original
The 24kWh/t come is reduced to 21.8kWh/t, reduces 9.2%；The following product of qualified grain size 0.074mm contains in ore grinding product
Amount has been increased to 33% by original 10% or so；Steel ball average life was increased to 208 days by 175 days.
Embodiment 3
A kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.
The diameter of dumbbell spherical balls both ends spherical shape is identical, diameter D, and dumbbell spherical balls length L is 2 times of D, dumbbell spherical balls
Most narrow width W is 0.75 times of D at intermediate recess, and the radius of curvature R of dumbbell spherical balls intermediate recess circular arc is 1 times of D, dumbbell ball
The spherical at shape steel ball both ends and intermediate recess arc surface seamlessly transit, and two curved surface junctions increase bridge joint curved surface.Dumbbell ball
Shape steel ball is high-carbon high-manganese alloy cast ball, and the diameter D of dumbbell spherical balls is 70mm.
The plain ball of two kinds of different diameter specifications is combined to carry out gradation using dumbbell spherical balls, general spherical shape steel ball
Diameter is respectively 50mm, 30mm.Gradation ratio is dumbbell spherical balls (diameter 70mm): plain ball (diameter 50mm): common
Steel ball (diameter 30mm)=35:45:20.
The present embodiment dumbbell spherical balls and grading method use on the ore-benificiating ball grinder of Tin concentrate, and unit power consumption is by original
The 24kWh/t come is reduced to 22.8kWh/t, reduces 5%；The following product assay of qualified grain size 0.074mm in ore grinding product
42% has been increased to by original 10% or so.
Embodiment 4
A kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.
The diameter of dumbbell spherical balls both ends spherical shape is identical, diameter D, and dumbbell spherical balls length L is 1.8 times of D, dumbbell spherical balls
Intermediate recess at most narrow width W be 0.8 times of D, the radius of curvature R of dumbbell spherical balls intermediate recess circular arc is 1.2 times of D, mute
The spherical at bell spherical balls both ends and intermediate recess arc surface seamlessly transit, and two curved surface junctions increase bridge joint curved surface.It is mute
Bell spherical balls are high-carbon high-manganese alloy cast ball, and the diameter D of dumbbell spherical balls is 80mm.
The plain ball of three kinds of different diameter specifications is combined to carry out gradation using dumbbell spherical balls, general spherical shape steel ball
Diameter is respectively 100mm, 80mm, 60mm.Gradation ratio is plain ball (diameter 100mm): dumbbell spherical balls (diameter
80mm): plain ball (diameter 80mm): plain ball (diameter 60mm)=20:20:40:20.
The present embodiment dumbbell spherical balls and grading method use on the ore-benificiating ball grinder of Tin concentrate, and unit power consumption is by original
The 24kWh/t come is reduced to 21.6kWh/t, reduces 10%；The following product assay of qualified grain size 0.074mm in ore grinding product
31% has been increased to by original 10% or so.
Embodiment 5
A kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.
The diameter of dumbbell spherical balls both ends spherical shape is identical, diameter D, and dumbbell spherical balls length L is 2.3 times of D, dumbbell spherical balls
Intermediate recess at most narrow width W be 0.7 times of D, the radius of curvature R of dumbbell spherical balls intermediate recess circular arc is 0.8 times of D, mute
The spherical at bell spherical balls both ends and intermediate recess arc surface seamlessly transit, and two curved surface junctions increase bridge joint curved surface.It is mute
Bell spherical balls are high-carbon high-manganese alloy cast ball, and the diameter D of dumbbell spherical balls is 60mm.
The plain ball of five kinds of different diameter specifications is combined to carry out gradation using dumbbell spherical balls, general spherical shape steel ball
Diameter is respectively 100mm, 80mm, 60mm, 45mm, 30mm.Gradation ratio is plain ball (diameter 100mm): plain ball
(diameter 80mm): dumbbell spherical balls (diameter 60mm): plain ball (diameter 60mm): plain ball (diameter 45mm): common
Steel ball (diameter 30mm)=10:20:20:15:20:15.
The present embodiment dumbbell spherical balls and grading method use on the ore-benificiating ball grinder of Tin concentrate, and unit power consumption is by original
The 24kWh/t come is reduced to 22kWh/t, reduces 8.4%；The following product assay of qualified grain size 0.074mm in ore grinding product
34% has been increased to by original 10% or so.
Embodiment 6
As shown in attached drawing 1,3, a kind of ball mill steel ball, steel ball shape is that dumbbell is spherical, and both ends are spherical structure, and centre is
Be recessed arc structure.The diameter of dumbbell spherical balls both ends spherical shape is different, and diameter is respectively D1, D2, D1:D2=0.618；Steel ball
Extreme length L be 1.3 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. L:(D1+D2)=0.65；The centre of steel ball
The most narrow width W of recess is 0.61 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. W:(D1+D2)=0.305；Steel ball
The radius of curvature R of intermediate recess circular arc is 0.55 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. R:(D1+D2)=
0.275。
Use the dumbbell spherical balls (diameter of steel ball both ends spherical shape is different) and same diameter of same format diameter
The general spherical shape steel ball of size carries out gradation, and the diameter of dumbbell spherical balls is respectively 100mm and 61.8mm, general spherical shape steel ball
Diameter be 80mm, gradation ratio be wherein dumbbell spherical balls accounting (mass fraction) be 40%.
Embodiment 7
A kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.
The diameter of dumbbell spherical balls both ends spherical shape is different, and diameter is respectively D1, D2, D1:D2=1.618；The extreme length L of steel ball is
2.8 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. L:(D1+D2)=1.4；Most narrow width at the intermediate recess of steel ball
W is 0.88 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. W:(D1+D2) 0.44；The song of steel ball intermediate recess circular arc
Rate radius R is 1.25 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. R:(D1+D2)=0.625.
It is straight with two kinds of differences using the dumbbell spherical balls (diameter of steel ball both ends spherical shape is different) of same format diameter
The plain ball of diameter specification carries out gradation, and the diameter of dumbbell spherical balls is respectively 50mm and 80.9mm, general spherical shape steel ball
Diameter is respectively 60mm, 90mm.Gradation ratio is dumbbell spherical balls: plain ball (diameter 60mm): plain ball (diameter
90mm)=35:45:20.
Embodiment 8
A kind of ball mill steel ball, steel ball shape are that dumbbell is spherical, and both ends are spherical structure, and centre is recess arc structure.
The diameter of dumbbell spherical balls both ends spherical shape is different, and diameter is respectively D1, D2, D1:D2=1.2；The extreme length L of steel ball is steel
2 times of ball both ends spherical diameter D1 and D2 average value, i.e. L:(D1+D2)=1；Most narrow width W is steel at the intermediate recess of steel ball
0.7 times of ball both ends spherical diameter D1 and D2 average value, i.e. W:(D1+D2)=0.35；The curvature of steel ball intermediate recess circular arc half
Diameter R is 1 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. R:(D1+D2)=0.5.
It is straight with three kinds of differences using the dumbbell spherical balls (diameter of steel ball both ends spherical shape is different) of same format diameter
The plain ball of diameter specification carries out gradation, and the diameter of dumbbell spherical balls is respectively 100mm and 120mm, general spherical shape steel ball
Diameter is respectively 110mm, 90mm, 70mm.Gradation ratio is dumbbell spherical balls: plain ball (diameter 110mm): ordinary steel
Ball (diameter 90mm): plain ball (diameter 70mm)=10:20:30:20:20.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of ball mill steel ball, which is characterized in that the steel ball shape is that dumbbell is spherical, and both ends are spherical structure, and centre is
Be recessed arc structure.
2. ball mill steel ball according to claim 1, which is characterized in that including following technical characteristic at least one:
The diameter of the steel ball both ends spherical shape is D, and the extreme length L of steel ball is 1.3 to 2.8 times of D；
The diameter of the steel ball both ends spherical shape is D, and most narrow width W is 0.61 to 0.88 times of D at the intermediate recess of steel ball；
The diameter of the steel ball both ends spherical shape is D, and the radius of curvature R of steel ball intermediate recess circular arc is 0.55 to 1.25 times of D.
3. ball mill steel ball according to claim 1, which is characterized in that the diameter of the steel ball both ends spherical shape is different, directly
Diameter is respectively D1, D2, D1:D2=0.618~1.618；Including following technical characteristic at least one:
The extreme length L of the steel ball is 1.3 to 2.8 times of steel ball both ends spherical diameter D1 and D2 average value, i.e. L:(D1+D2)
=0.65~1.4；
Most narrow width W is 0.61 to the 0.88 of steel ball both ends spherical diameter D1 and D2 average value at the intermediate recess of the steel ball
Times, i.e. W:(D1+D2)=0.305~0.44；
The radius of curvature R of the steel ball intermediate recess circular arc is 0.55 to the 1.25 of steel ball both ends spherical diameter D1 and D2 average value
Times, i.e. R:(D1+D2)=0.275~0.625.
4. ball mill steel ball according to claim 1, which is characterized in that the spherical at the steel ball both ends is recessed with centre
Arc surface smooth transition is fallen into, two curved surface junction is equipped with bridge joint curved surface.
5. ball mill steel ball according to claim 1, which is characterized in that be additionally provided on the spherical structure of the steel ball both ends convex
The portion of rising, the lug boss are hemispherical or arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821083584.3U CN208695162U (en) | 2018-07-10 | 2018-07-10 | A kind of ball mill steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821083584.3U CN208695162U (en) | 2018-07-10 | 2018-07-10 | A kind of ball mill steel ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208695162U true CN208695162U (en) | 2019-04-05 |
Family
ID=65937631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821083584.3U Active CN208695162U (en) | 2018-07-10 | 2018-07-10 | A kind of ball mill steel ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208695162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837892A (en) * | 2018-07-10 | 2018-11-20 | 方圆(德安)矿业投资有限公司 | A kind of ball mill steel ball and grading method |
-
2018
- 2018-07-10 CN CN201821083584.3U patent/CN208695162U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837892A (en) * | 2018-07-10 | 2018-11-20 | 方圆(德安)矿业投资有限公司 | A kind of ball mill steel ball and grading method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103433098B (en) | A kind of method improving ball mill grinding efficiency | |
| CN108837892A (en) | A kind of ball mill steel ball and grading method | |
| WO2013007076A1 (en) | Ore grinding medium | |
| CN106269068A (en) | Hammer for fragmentation machine | |
| CN208695162U (en) | A kind of ball mill steel ball | |
| CN202555352U (en) | Grading lining board of ball mill | |
| CN206661338U (en) | One kind is used for Production of Ceramics pulping device | |
| CN111744607B (en) | Method for improving intermediate grade content of primary grinding product and application | |
| CN205966060U (en) | Modular milling machine barrel body welt | |
| CN204735292U (en) | Ball sharpening machine sleeve -board | |
| CN102259058A (en) | New process of closing in three sections and preselecting and crushing in two sections | |
| CN203935879U (en) | Multi-functional many ribs abrading-ball | |
| CN210496649U (en) | Lining plate of semi-autogenous grinding ball mill for metal ores | |
| CN202942923U (en) | Throwing head | |
| CN202860629U (en) | High-abrasion-resistance composite board hammer for counterattacking crusher rotor | |
| CN202778930U (en) | Preliminary-classification self-returning type drum screen | |
| CN208679342U (en) | A kind of tower grinding mill barrel device with double material inlets | |
| CN202942924U (en) | Throwing head for sand making machine | |
| CN105268518A (en) | Multifunctional multi-edge grinding ball | |
| CN2330416Y (en) | Improved autogenous grinding mill lining plate | |
| CN2673557Y (en) | High self sharping metal bonding agent diamond product | |
| CN212855993U (en) | Rotor of sand making machine | |
| CN202527367U (en) | Roller of roller screen | |
| CN215234983U (en) | Screw shaft for mining screw grader | |
| CN213222637U (en) | Crusher lining plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |