CN101733179A - Stuffing component for ball-milling COREX slag powder by ball mill - Google Patents
Stuffing component for ball-milling COREX slag powder by ball mill Download PDFInfo
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- CN101733179A CN101733179A CN200810203113A CN200810203113A CN101733179A CN 101733179 A CN101733179 A CN 101733179A CN 200810203113 A CN200810203113 A CN 200810203113A CN 200810203113 A CN200810203113 A CN 200810203113A CN 101733179 A CN101733179 A CN 101733179A
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- ball
- steel
- mill
- weight
- forging
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- 239000002893 slag Substances 0.000 title claims abstract description 36
- 238000000498 ball milling Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 238000000227 grinding Methods 0.000 claims abstract description 34
- 238000005242 forging Methods 0.000 claims description 25
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000004566 building material Substances 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 4
- 239000004035 construction material Substances 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a stuffing component of ball-milling productive technology for processing COREX slag. The invention discloses a stuffing component for grinding COREX slag powder by a ball mill, the weight computational formula of stuffing for grinding in a front compartment and a rear compartment of the ball mill is as follows: G=0.785*D02*L0*Phi*r, wherein, D0 is the effective inner diameter of the mill, L0 is the effective length of the mill; the steel ball fill rate is 31% in the front compartment, the grinding body steel ball volume weight r is 4.6; the Phi steel ball fill rate is 30% in the rear compartment, the grinding body steel volume weight r is 4.7, steel mill stuffing is placed in the front compartment and the rear compartment of the mill, the shape, size and the weight percent of the steel mill stuffing are as follows: the steel diameter of the front compartment (mm)/wt% is 40/15-19; 30/30-37; 25/45-55; the steel diameter*height (mm)/wt% of the rear compartment is as follows: 20*20/6-8; 18*18/18-25; 16*16/39-47; 14*14/18-25; 12*12/6-8. One set of production equipment adopts two different processes, selects two different stuffing components of the mill, respectively completes processing production of different objects, thus the investment is saved and the economy is strong.
Description
(1) technical field
The present invention is a kind of processing technology of building materials powder, particularly relates to the ball milling production technology stuffing component that is used for processing the COREX slag.
(2) background technology
COREX fused reduction iron-smelting technology belongs to world's advanced technology, only there is a few countries that this production technology is arranged at present in the world, i.e. South Africa Yi Sike company, Korea S Pohang Iron and Steel Corporation, India Jin Daer (Jindal) company and the South Africa Yi Sike Sa Danna of company (Saldanha) factory totally 4 C-2000 type devices.Steel company in Baoshan Iron and Steel Group Pu is a first hand of introducing COREX stove ironmaking technology at home, the COREX slag is the grain slag that produces in the COREX converter technology ironmaking processes, how to utilize the COREX slag that precedent is not also arranged at home, in October, 2007, Pu steel COREX stove is gone into operation, domestic first batch of COREX slag arises at the historic moment, and the utilizability research and the Research on Process of this slag are launched in high gear.
For carrying out the recycling economy of iron and steel enterprise, economize on resources, all kinds of slags that ironmaking processes is produced are effectively used, for enterprise increases new growth engines, on the basis that the blast furnace grain slag that continues is extensively utilized, extend, inspired the requirement that the COREX slag is utilized, process should be a kind of fine, economic construction material after the deep processing of COREX slag to the analysis of the chemical composition and the physical property of COREX slag.
How the COREX slag is carried out deep processing, making it become the material that satisfies the building needs becomes the key subjects that everybody inquires into research and development, and investigation is not by retrieval all finished both at home and abroad at present and disclosed and both process effectively, economical and practical again equipment and related process.
Prior art ball milling production technology is equipment and the technology that is used for producing cement, and its main process is: 1. drying course: slag, rubble are dried in dryer; 2. grinding process: send into behind the ball mill grinding and carry out sorting in the powder concentrator, qualified fine powder enters dust-precipitator and collects, defective work by the meal feeding back device through ball mill grinding once more.
Whole ball mill is a steel elongated cylindrical cylindrical shell, the head of ball mill is installed a feed pipe, material enters in the ball mill through this pipeline, the afterbody of ball mill is installed a pair of big pinion, by of the big or small gear driven cylindrical shell rotation of main motor through reductor, the bottom portion of ball milling tail is a drawing mechanism, and top is extractor fan.Cylinder inboard wall is installed with lifting, classifying lining board, afterbody is installed the individual layer shifting board, and the double-deck shifting board of middle installation is divided into former and later two cabins to inner barrel, the inserts that is loading as grinding in these two cabins is the different steel ball of diameter, at the inwall of rear deck one row's activating apparatus is installed.
The computing formula that ball mill is thrown in the grinding inserts is:
G＝0.785*D
0 2*L
0*￠*r
Wherein: D
0The effective internal diameter L of grinding machine
0Grinding machine effective length ￠ grinding machine filling rate r abrasive body unit weight
Front deck: D for example
0The effective internal diameter of grinding machine is 3.26m L
0Grinding machine effective length 2.6m
￠ grinding machine filling rate 31% r abrasive body unit weight 4.6
G1=0.785*D
0 2* L
0* ￠ * r=30 ton
Rear deck: D for example
0The effective internal diameter of grinding machine is 3.26m L
0Grinding machine effective length 6m
￠ grinding machine filling rate 31% r abrasive body unit weight 4.6
G2=0.785*D
0 2* L
0* ￠ * r=70 ton
Above example is as the prior art Commonly Used Size, and the inserts of placing in ball mill is all to place steel ball in the front deck of cylindrical shell and the rear deck, and the diameter of steel ball and the weight of corresponding placement are as follows:
Placing the spheroidal diameter at front deck is 30 tons of steel balls between 60 to 100 millimeters, and placing the spheroidal diameter at rear deck is 70 tons of steel balls between 25 to 50 millimeters.
Specifically:
Front deck steel ball size (millimeter) weight (ton)
100 4
90 7
80 9
70 7
60 3
Rear deck steel ball size (millimeter) weight (ton) 90
50 10
40 18
30 20
25 22
Wherein the dimensional tolerance of steel ball is+2.0～-1.0.
The equipment of prior art and technology, though comprise that the specification of placing inserts, weight can the standard compliant cement flours of standard processing, but deep processing COREX slag can not reach follow-up requirement as raw material of building materials, mainly be that powder diameter is bigger than normal, seriously irregular, can't use as construction material.
How the COREX slag is carried out deep processing, obtaining the physical characteristic that meets the requirement of building materials specialty has become the urgent problem of utilizing the performance COREX slag surplus value.
(3) summary of the invention
Problem to be solved by this invention provides a kind of processing technology, method of flour mill, provide ball mill to be suitable for the stuffing component of ball milling COREX pulverized slag, make it carry out grinding and handle, reach certain performance requirement, become the material that satisfies the building needs the COREX slag.
The objective of the invention is to realize by following processing technology:
A kind of stuffing component of ball mill ball milling COREX pulverized slag is characterized in that:
Grinding inserts Weight Calculation formula is thrown in the forward and backward cabin of ball mill: G=0.785*D
0 2* L
0* ￠ * r
Wherein: D
0The effective internal diameter L of grinding machine
0The grinding machine effective length
Front deck: ￠ grinding machine steel ball filling rate 31% r abrasive body steel ball unit weight 4.6
Rear deck: ￠ grinding machine forging filling rate 30% r abrasive body forging unit weight 4.7
The steel of putting into following geomery and percentage by weight respectively at the front deck and the rear deck of ball mill grinds inserts:
Front deck steel ball size millimeter weight %
40 15-19
30 30-37
25 45-55
Rear deck forging diameter * height millimeter weight %
20×20 6-8
18×18 18-25
16×16 39-47
14×14 18-25
12×12 6-8
Wherein the dimensional tolerance of steel ball, forging is+2.0～-1.0.
Preferably, the steel mill inserts of putting into following geomery and percentage by weight respectively at the front deck and the rear deck of ball mill:
The front deck of ball mill and rear deck are put into the steel mill inserts of following geomery and percentage by weight respectively:
Front deck steel ball size millimeter weight %
40 17
30 33
25 50
Rear deck forging diameter * height millimeter weight %
20×20 7
18×18 21.5
16×16 43
14×14 21.5
12×12 7
Wherein the dimensional tolerance of steel ball, forging is+2.0～-1.0.
The COREX slag has grindability is poor, iron-holder is high characteristics to make and can not intactly utilize the equipment of prior art and technology to process, must be in conjunction with suitable, reasonable, the economic processing method of the intrinsic peculiar property of COREX slag proposition one cover.
Through demonstration, investigation, contrast test, the grinding device that it is considered herein that prior art can be used for deep processing COREX slag, both saved equipment investment, make one type of prior art syringe to become cement flour by the common grain slag of processing again, reach a cover apparatus for production line and can satisfy two kinds of production needs.But, in powder-grinding process, must shape, the distribution of weight of front deck in the cylindrical shell and rear deck steel ball be changed, pass through a large amount of evidences and obtained the processing technology requirement of flour mill processing COREX slag as mentioned above, select corresponding ball mill stuffing component for use, make that the COREX slag after the processing has the good characteristic that is used for construction material.
Beneficial effect of the present invention: a cover production equipment adopts two kinds of different processing technologys, selects two kinds of different ball mill stuffing components for use, can finish the processing of different objects respectively, has saved investment, and economy is strong.Adopt the COREX pulverized slag of process conditions processing of the present invention to reach the specification requirement of building trade fully, become a kind of good New Building Materials this granulated slag.
(4) description of drawings
Fig. 1 is the ball mill structural representation.
Among the figure, the 1st, cylindrical shell 2 is that liner plate 3 is that double-deck shifting board 4 is that individual layer shifting board 5 is that steel ball 5a is that forging 6 is that activating apparatus 7 is that feed pipe 8 is that gear pair 9 is that drawing mechanism 10 is extractor fans
(5) specific implementation method
Further describe structure of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, whole ball mill is a steel elongated cylindrical cylindrical shell 1, cylindrical shell 1 inwall is installed with lifting, classifying lining board 2, afterbody is installed individual layer shifting board 4, the double-deck shifting board 3 of middle installation is divided into the steel ball cabin of nearly inlet and the forging cabin at rear portion to inner barrel, loading steel ball 5, forging 5a respectively in these two cabins, one row's activating apparatus 6 is being installed at the cylinder inboard wall in forging zone.The head of ball mill is installed a feed pipe 7, and material enters in the ball mill through this pipeline, and the afterbody of ball mill is installed a pair of big pinion 8, and the bottom portion of ball milling tail is a drawing mechanism 9, and top is extractor fan 10.
Under the ball mill operating condition, the motor drives reductor drives ball mill barrel 1 by big pinion 8 and axially rotates.Under such state, the COREX slag falls in the steel ball cabin of cylindrical shell 1 by drawing-in device 7, mixed in together with steel ball 5, ball mill barrel 1 rotation makes that thick material and the steel ball 5 in the cylindrical shell 1 together takes up upset, by the impact of steel ball 5 by promoting the lifting force that liner plate 2 produces, make the material fragmentation, material particular diameter is tapered, and arriving certain fineness can be taken away by the extractor fan 10 of ball mill afterbody, enters in the forging cabin, back by double-deck shifting board 3.Forging 5a mixes in thin material and the forging cabin, the lifting force that ball mill barrel 1 rotation produces by classifying lining board 2, make thin material and forging 5a in the cylindrical shell together take up upset, grinding, shear action by forging 5a, make that material is broken once more, grinding, material particular diameter attenuates more, and the arrival certain fineness can be taken away by individual layer shifting board 4 by the extractor fan 10 of ball mill afterbody and enter ball mill afterbody drawing mechanism 9, enters in the subsequent delivery equipment again.Row's activating apparatus 6 that forging cabin inwall is installed is effects of playing the activation material.Material after grinding and the material that reaches finish fineness are delivered to finished product by powder concentrator by air-flow and collect unit and collect, and below standard material then carries out attrition process again in the meal material return system enters ball mill barrel 1, until reaching the finished product standard.
Front deck at ball mill is placed 30 tons of spheroidal steel balls, place 70 tons of cylindrical forgings at rear deck, be placed in the steel mill inserts of following geomery and percentage by weight respectively at front deck and rear deck, the COREX pulverized slag that obtains through use has the good characteristic that is used for construction material:
Front deck steel ball size millimeter weight %
40 17.5
30 33
25 49.5
Rear deck forging diameter * height millimeter weight %
20×20 7
18×18 21
16×16 42.5
14×14 22
12×12 7.5
Wherein the dimensional tolerance of steel ball, forging is+2.0～-1.0.
One cover production equipment adopts two kinds of different processing technologys, selects two kinds of different ball mill stuffing components for use, finishes the processing of different objects respectively, has saved investment, and economy is strong.Adopt the COREX pulverized slag of process conditions processing of the present invention to reach the specification requirement of building trade fully, become a kind of good New Building Materials this granulated slag.
Claims (2)
1. the stuffing component of a ball mill ball milling COREX pulverized slag is characterized in that:
Grinding inserts Weight Calculation formula is thrown in the forward and backward cabin of ball mill: G=0.785*D
0 2* L
0* ￠ * r
Wherein: D
0The effective internal diameter L of grinding machine
0The grinding machine effective length
Front deck: ￠ grinding machine steel ball filling rate 31% r abrasive body steel ball unit weight 4.6
Rear deck: ￠ grinding machine forging filling rate 30% r abrasive body forging unit weight 4.7
The steel of putting into following geomery and percentage by weight respectively at the front deck and the rear deck of ball mill grinds inserts:
Front deck steel ball size millimeter weight %
40 15-19
30 30-37
25 45-55
Rear deck forging diameter * height millimeter weight %
20×20 6-8
18×18 18-25
16×16 39-47
14×14 18-25
12×12 6-8
Wherein the dimensional tolerance of steel ball, forging is+2.0～-1.0.
2. according to the described stuffing component of claim 1, it is characterized in that the steel mill inserts of putting into following geomery and percentage by weight respectively at the front deck and the rear deck of ball mill:
Front deck steel ball size millimeter weight %
40 17
30 33
25 50
Rear deck forging diameter * height millimeter weight %
20×20 7
18×182 1.5
16×16 43
14×14 21.5
12×12 7
Wherein the dimensional tolerance of steel ball, forging is+2.0～-1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102031136A CN101733179B (en) | 2008-11-21 | 2008-11-21 | Stuffing component for ball-milling COREX slag powder by ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102031136A CN101733179B (en) | 2008-11-21 | 2008-11-21 | Stuffing component for ball-milling COREX slag powder by ball mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733179A true CN101733179A (en) | 2010-06-16 |
| CN101733179B CN101733179B (en) | 2011-10-05 |
Family
ID=42457508
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102031136A Expired - Fee Related CN101733179B (en) | 2008-11-21 | 2008-11-21 | Stuffing component for ball-milling COREX slag powder by ball mill |
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| Country | Link |
|---|---|
| CN (1) | CN101733179B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936102A (en) * | 2012-09-20 | 2013-02-20 | 亓俊华 | Cementation curing material and production method thereof, and filling material containing cementation curing material |
| CN103495487A (en) * | 2013-10-17 | 2014-01-08 | 中冶长天国际工程有限责任公司 | Method and device for adjusting ball filling rate in ore mill control |
| CN107837901A (en) * | 2017-10-14 | 2018-03-27 | 中国路桥工程有限责任公司 | A kind of natural scoria grinding processing is special to match somebody with somebody ball |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403742A (en) * | 1980-11-13 | 1983-09-13 | The Dow Chemical Company | Use of rod mill for initial stage of solder glass grinding |
| DE10016388C2 (en) * | 2000-04-01 | 2003-04-10 | Fauner Gerhard | Grinding device and method for the production of fine flour particles in the nanometer range |
-
2008
- 2008-11-21 CN CN2008102031136A patent/CN101733179B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936102A (en) * | 2012-09-20 | 2013-02-20 | 亓俊华 | Cementation curing material and production method thereof, and filling material containing cementation curing material |
| CN103495487A (en) * | 2013-10-17 | 2014-01-08 | 中冶长天国际工程有限责任公司 | Method and device for adjusting ball filling rate in ore mill control |
| CN103495487B (en) * | 2013-10-17 | 2016-01-06 | 中冶长天国际工程有限责任公司 | A kind of ore mill regulates the method and apparatus of steel ball filling rate in controlling |
| CN107837901A (en) * | 2017-10-14 | 2018-03-27 | 中国路桥工程有限责任公司 | A kind of natural scoria grinding processing is special to match somebody with somebody ball |
| CN107837901B (en) * | 2017-10-14 | 2019-09-24 | 中国路桥工程有限责任公司 | A kind of natural scoria grinding processing is dedicated to match ball |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733179B (en) | 2011-10-05 |
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Granted publication date: 20111005 |