CN106216030B - Steel ball for coal crushing grinds - Google Patents
Steel ball for coal crushing grinds Download PDFInfo
- Publication number
- CN106216030B CN106216030B CN201610597853.7A CN201610597853A CN106216030B CN 106216030 B CN106216030 B CN 106216030B CN 201610597853 A CN201610597853 A CN 201610597853A CN 106216030 B CN106216030 B CN 106216030B
- Authority
- CN
- China
- Prior art keywords
- steel ball
- grinds
- coal
- connection member
- arc part
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 title claims abstract description 32
- 241001504664 Crossocheilus latius Species 0.000 claims abstract description 18
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000003801 milling Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims abstract description 3
- 238000001727 in vivo Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 7
- 239000003818 cinder Substances 0.000 abstract description 6
- 239000012141 concentrate Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of steel ball stone roller for coal crushing, including：Milling rod, grind body, it is characterised in that：Also include：Connection member, steel ball, the milling rod bottom are fixed with connection member, and the connection member is connected by four screws with grinding body top surface；The stone roller body is arranged to hollow-core construction, grind be placed with vivo it is multiple can free activity steel ball；Grinding body includes：Cylinder part, arc part, the cylinder part bottom are provided with arc part, and the arc part is arranged to the segment that bottom is circular flat.Ground provided by the present invention for the steel ball of coal crushing, the shear force of curved bottom is much larger than the active force that people applies to holding milling rod, can so reduce the labor intensity of sample preparation personnel；Curved bottom, which concentrates on maximum shear force, when broken grinds bottom and coal cinder contact portion, accelerates the scrap rates of coal cinder, raises labour productivity；When steel ball grinds broken coal cinder, belong to contact and roll and non-impact broken, be not likely to produce sample splashing.
Description
Technical field
The present invention relates to a kind of steel ball stone roller for coal crushing, belong to coal and mill technical field of tools.
Background technology
Milled instrument for coal, standard GB474-2008《The preparation method of coal sample》And GB/T19494.2-2004《Coal
Charcoal mechanical sampling part 2：The preparation of coal sample》Description to be given in the 8th and the 7th clause " broken to be set with machinery respectively
It is standby, but allow the maximum feed granularity that bulk sample is crushed to the 1st crushing stage by artificial means ".At present, coal inspection laboratory
The roller pattern used in coal preparation process is generally vertical and horizontal, and two sides are mainly reflected in using the purpose of roller
Face：1st, when coal sample moisture is very big or coal sample is very glutinous, mechanical crushing appliance can not meet service requirement by property；2nd, it is big in coal sample
It is less efficient using mechanical crushing appliance when block distribution of particles is less.Now, mechanical crushing appliance is replaced using artificial stone roller, shown
Obtain extremely convenient quick.
During routine use, it is found that traditional vertical stone roller and horizontal stone roller have the following disadvantages：1st, it is inconvenient for use, it is vertical
Stone roller bottom surface is plane, and frictional force is larger during use, can not realize and complete larger output with small acting.2nd, body forces are not met
Learn：Horizontal stone roller demand user is in semi-crouch state and goes to operate, mill for a long time human body can be caused larger work load and
Waist injury.3rd, accommodation is narrower：The weight of roller in itself is confined to, in face of big granularity coal cinder or hardness compared with gathering coal, two
Kind roller all can not effectively be completed to crush it.When the 4th, using vertical stone roller, easily cause coal sample to be splashed, influence to represent
Property.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of steel ball for coal crushing and ground.
Technical scheme：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of steel ball for coal crushing grinds, including：Milling rod, grind body, connection member, steel ball, the milling rod bottom
Portion is fixed with connection member, and the connection member is connected by four screws with grinding body top surface；The stone roller body is arranged to hollow
Structure, grind be placed with vivo it is multiple can freely activity steel ball；Grinding body includes：Cylinder part, arc part, the cylinder
Feature bottom is provided with arc part, and the arc part is arranged to the segment that bottom is circular flat.
Preferably, milling rod top is arranged to 1.2 meters to body bottom lengths are ground；The diameter of the cylinder part
It is arranged to 0.32 meter；The height of the arc part is arranged to 0.03 meter, and the diameter of arc part bottom circular flat is arranged to
0.07 meter.
Preferably, the weight that the steel ball grinds is arranged to 73kg.
Preferably, the steel ball size is arranged to 40mm.
Beneficial effect：Grind provided by the present invention for the steel ball of coal crushing, ground and horizontal stone roller to solve traditional vertical
Existing four shortcomings in use, and design is optimized in terms of Mechanics of Machinery and body mechanics two, it have developed
Steel ball for coal crushing grinds.The mechanism that the steel ball grinds is 1, roller height 1.2m, facilitates the system that height is 1.65m-1.85m
Sample librarian use, it is not only laborsaving but also safe；2nd, stone roller deadweight 73kg, cylinder grind is equipped with rolling steel balls in vivo, and curved bottom will when crushing
Maximum shear force, which concentrates on, grinds bottom and coal cinder contact portion；3rd, when roller rotates, arcuate bottom substitution plane bottom, operation is more flexible more to be saved
Power；4th, cylinder upper surface is fixed with four screws, convenient to increase and decrease steel ball number, adjusts roller weight；5th, when coal cinder hardness is larger
When, sample preparation personnel can step down in cylinder upper surface with pin, and using both hands and feet, it is broken to rotate roller completion；6th, development cost is low, develops
The main required steel ball of roller and cylinder grind body, discarded steel pipe and failure steel ball both from power plant.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the scale diagrams of the present invention；
Fig. 3 is that steel ball grinds motion and frictional force schematic diagram.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of steel ball for coal crushing grinds, including：Milling rod 1, grind body 2, connection member 3,
Steel ball 4, the bottom of milling rod 1 are fixed with connection member 3, and the connection member 3 is by four screws 5 with grinding the top surface phase of body 2
Connection；The stone roller body 2 is arranged to hollow-core construction, grind be placed with body 2 it is multiple can free activity steel ball 4；Grinding body 2 includes：Circle
Cylinder component 21, arc part 22, the bottom of cylinder part 21 are provided with arc part 22, and the arc part 22 is set
For the segment that bottom is circular flat.
Preferably, milling rod top is arranged to 1.2 meters to body bottom lengths are ground；The diameter of the cylinder part
It is arranged to 0.32 meter；The height of the arc part is arranged to 0.03 meter, and the diameter of arc part bottom circular flat is arranged to
0.07 meter.
Concrete operating principle is as follows：
F1·I1=F2·I2
In formula：
F1：People is applied to the power that steel ball grinds its rotation minimum of driving.
I1：Power arm.
F2:Resistance.
I2:Resistance arm.
Rotate one week resistance acting W=2 π rf, its resistance arm I2For 1/2 π；
F2=μ N, N take gravitional force, i.e. N=mg；G is that gravity coefficient takes 9.8N/kg
μ takes 0.3-0.5；
It can calculate, it is in 6.26N-10.43N to promote roller calculated value.
As shown in figure 3, it is cylinder to grind body, quality m, radius R, length L, inboard end face is away from vertical pivot η.Do not consider
Initial start-up period, people are rotated with even speed, promote roller to be rotated around vertical pivot with angular velocity vector Ω, are ground body and are rotated around trunnion axis
Angular speed is ω, then grinds body with being away from the speed at inboard end face ρ in mill disc contact line
V=Ω (η+ρ)-ω R (1)
ρ0=ω R/ Ω-η (2)
It is being zero away from internal side end face initial velocity is ground.Obviously, grinding body only has a section to make pure rolling, and its inner side is made backward
Sliding, outside slides forward.Effect of the roller to material is not only the gravity extruding of vertical direction, horizontal direction rubbing also be present
That is shearing force, it is advantageously implemented the broken of material.Grind the body rotation moment of momentum values constant and direction constantly change, it is necessary to by
The torque outside perpendicular to paper, or produce perpendicular to the inside gyroscopic couple of paper.Vertical pivot can not act on vertical force to grinding frame,
Thus gyroscopic couple will make increase on the outside of supporting force of the mill disc to grinding body and inboard reduces；But because rotating speed is relatively low, force action
Point deviates 1% that midpoint distance is less than stone roller body length.The effect of gyroscopic couple need not can consider.Grind between body and sample preparation iron plate
Horizontal applied force is similar to sliding friction, and friction factor μ is related to ground material and its degree of crushing.It is permanent to grind body rotational velocity
Fixed, then all active forces are zero on the torque of its trunnion axis, there is ρ 0=L/2.Torque of the frictional force on mill disc center vertical pivot
For
M=-umgL/4 (3)
Here it is the torque that the person that pushes away stone roller needs to provide, and through grinding frame, trunnion axis bolt provides couple and acts on stone roller body.Grind body around
, it is necessary to centripetal force when vertical axes rotate
F=m Ω2(η+L/2) (4)
Grinding material deformation between body and sample preparation iron plate makes stone roller body progressively outwards wriggle, be not finally mill disc radial friction,
But frame and center vertical pivot are ground to carry centrifugal force.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of steel ball for coal crushing grinds, including：Milling rod, grind body, it is characterised in that：Also include connection member, steel
Ball, the milling rod bottom are fixed with connection member, and the connection member is connected by four screws with grinding body top surface；It is described
Grind body and be arranged to hollow-core construction, grind the steel ball for being placed with multiple freely activities in vivo；Grinding body includes cylinder part, curved portions
Part, the cylinder part bottom are provided with arc part, and the arc part is arranged to the segment that bottom is circular flat.
2. the steel ball according to claim 1 for coal crushing grinds, it is characterised in that：Milling rod top to stone roller body bottom
Length is arranged to 1.2 meters；The diameter of the cylinder part is arranged to 0.32 meter；The height of the arc part is arranged to 0.03
Rice, the diameter of arc part bottom circular flat are arranged to 0.07 meter.
3. the steel ball according to claim 2 for coal crushing grinds, it is characterised in that：The weight that the steel ball grinds is set
For 73kg.
4. the steel ball according to claim 3 for coal crushing grinds, it is characterised in that：The steel ball size is arranged to
40mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597853.7A CN106216030B (en) | 2016-07-27 | 2016-07-27 | Steel ball for coal crushing grinds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597853.7A CN106216030B (en) | 2016-07-27 | 2016-07-27 | Steel ball for coal crushing grinds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106216030A CN106216030A (en) | 2016-12-14 |
| CN106216030B true CN106216030B (en) | 2018-03-02 |
Family
ID=57533971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610597853.7A Active CN106216030B (en) | 2016-07-27 | 2016-07-27 | Steel ball for coal crushing grinds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106216030B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072520A1 (en) * | 1981-08-14 | 1983-02-23 | Dainippon Ink And Chemicals, Inc. | Process for producing ground crude pigment |
| CN1485139A (en) * | 2003-08-19 | 2004-03-31 | 李家春 | Magnetic suspension pattern steel ball coal mill |
| CN101722087A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Vacuum sealing milling tank and using method thereof |
| CN201592122U (en) * | 2010-01-19 | 2010-09-29 | 刘水海 | Vertical stirring ball mill |
| CN205925858U (en) * | 2016-07-27 | 2017-02-08 | 江苏常熟发电有限公司 | A steel ball grinds for coal is broken |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100120112A (en) * | 2010-10-25 | 2010-11-12 | 홍성민 | Ball mill with guide plate |
-
2016
- 2016-07-27 CN CN201610597853.7A patent/CN106216030B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072520A1 (en) * | 1981-08-14 | 1983-02-23 | Dainippon Ink And Chemicals, Inc. | Process for producing ground crude pigment |
| CN1485139A (en) * | 2003-08-19 | 2004-03-31 | 李家春 | Magnetic suspension pattern steel ball coal mill |
| CN101722087A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Vacuum sealing milling tank and using method thereof |
| CN201592122U (en) * | 2010-01-19 | 2010-09-29 | 刘水海 | Vertical stirring ball mill |
| CN205925858U (en) * | 2016-07-27 | 2017-02-08 | 江苏常熟发电有限公司 | A steel ball grinds for coal is broken |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106216030A (en) | 2016-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107597247B (en) | A kind of ore efficient pulverizing screening plant | |
| CN108970759A (en) | A kind of Chinese medicine processing efficient pulverizing grinding device and its Chinese medicine system of processing | |
| CN204208612U (en) | A kind of double-geared roller crusher | |
| CN109261251A (en) | A kind of tablet grinder | |
| CN205925858U (en) | A steel ball grinds for coal is broken | |
| CN106216030B (en) | Steel ball for coal crushing grinds | |
| CN108479958A (en) | A kind of refractory brick raw material crushing edge runner-wet mill | |
| CN206778635U (en) | A kind of double vertical channel two-shipper self-synchronous vibration inertia crusher | |
| CN206980837U (en) | It is a kind of to Kun formula disintegrating machines | |
| CN109351453A (en) | A kind of novel sand making machine crushing device | |
| CN203737299U (en) | Cone crusher adopting composite structure of rolling bearing and fixed and movable shafts | |
| CN207769920U (en) | A kind of energy saving wet ball-milling equipment of non-metallic mineral resource comprehensive utilization | |
| CN206868342U (en) | A kind of horizontal small ball mill for laboratory | |
| CN212596089U (en) | Mine ore processing ball-milling equipment | |
| CN204429394U (en) | A kind of vertical grain pulverizer | |
| CN107837946A (en) | A kind of pulverizer easy to remove | |
| CN207981355U (en) | A kind of micronizer | |
| CN209205516U (en) | A kind of processing of crude drugs grinding device | |
| CN110624651A (en) | Lime runner mill | |
| CN207823175U (en) | A kind of cleaning pharmacy pulverizer | |
| CN202070372U (en) | Large-scale wheel-rotating wheel mill | |
| CN204638291U (en) | A kind of ball mill unloads ball device | |
| CN206827564U (en) | A kind of cylindrical shape dries abrasion resistant type coal spout | |
| CN206253219U (en) | A kind of plum blossom frame of activated carbon roller mill | |
| CN201183120Y (en) | Extrusion crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |