CN105964346B - A kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level - Google Patents
A kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level Download PDFInfo
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- CN105964346B CN105964346B CN201610161104.XA CN201610161104A CN105964346B CN 105964346 B CN105964346 B CN 105964346B CN 201610161104 A CN201610161104 A CN 201610161104A CN 105964346 B CN105964346 B CN 105964346B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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Abstract
The invention discloses a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level, it specifically includes selection ball-grinding machine and armoured material, gradation performance assessment criteria is determined with method for visualizing, determine the horizontal experimental point of symmetric form of the most effective reflection experimental result of energy, the abrading-ball of different sphere diameters is tested according to a certain percentage and in conjunction with the horizontal experimental point of symmetric form, the best different diameter abrading-ball grading distribution schemes of different sphere diameter abrading-balls are obtained by visual analyzing.The invention proposes the complete grinding machines of system to fill tip-in technical solution, the best useful load of abrading-ball, most economical Material quality of grinding balls and best abrading-ball grading distribution scheme have been obtained with method for visualizing, breakthrough is not significantly unstable to the energy-saving and reduction production cost effect for using abrading-ball to generate, and causes " bottleneck " that can not be promoted and applied.
Description
Technical field
The present invention relates to abrading-ball fields, and in particular to is a kind of visualization for matching technology for ball-grinding machine abrading-ball quantized level
Method.
Background technique
Chinese wear-resistant material industrial market scale rapid growth, whole manufacture level are continuously improved.As national economy is steady
Step development, the fields such as China's thermal power generation, metallurgical mine, building material cement also keep steady growth to the demand of wear-resistant ball section
Situation, only domestic wear-resistant ball section reaches 208.74 ten thousand tons in demand 2015, and following table lists 2010-2015, such is produced
The growth pattern of product domestic demand amount:
The country 2010-2015 abrasion-resistant cast abrading-ball section market demand (ten thousand tons)
According to incompletely statistics, in recent years, the export volume of all kinds of wear-resistant ball sections in China year is 1,000,000 ton -150 ten thousand tons.It can
See, though the market demand total amount is larger, for a long time just because of domestic abrading-ball manufacturing technology, process equipment fall behind, production
Technique many decades are constant, think little of refining, and cause steel liquid degree of purity poor, and modification effect is unstable, and process of setting exists a large amount of
Segregation, variation and unstable tissue cause interior tissue not fine and close poor with surface quality；And abrading-ball center portion is to the mechanical property on surface
Energy, service performance are inconsistent, directly affect the service life of abrading-ball.
Ball mills quantized level can be divided into four-stage by its development level with the scientific research methods of technology:
1. the trial and error stage；
2. orthogonal experiment method (experimental period, higher cost, and large sample can not be handled)；
3. the exact test method of visual information processing；
4. using Intelligentized Control Model.
Grope the section of third step and the 4th step at abroad, having begun in recent years in abrading-ball manufacture and use field
It grinds method and is formulated with related art method and tool, replenishment of process, manufacture, use and monitor and embody technique " marrow " content
Exquisite device, however it is very different, make slow progress.At home, it remains in and is ground using orthogonal experiment method progress science now
Study carefully in the second stage with production application, causes a large amount of dynamic change factors effectively cannot control and predict, product manufacturing
Using long-standing waste, big, low efficiency, problem at high cost cannot be solved always with product；High speed cannot be efficiently used
Information technology, the intellectually and automatically technology of development accelerate the technological progress in the field, play the pressure of scientific and technological effect of taking the lead in race
It is increasing.
Abrading-ball ball mill mainly the industrial circles such as electric power, mining industry, cement for be crushed, various abrasive materials of milling, equipment,
Though abrasive material and medium are different, working principle is identical, and research method is consistent, and action is close.Traditional coal pulverizer installs abrading-ball additional
It is mainly to take referring to foundation and periodically install major diameter abrading-ball mode (φ 60mm) additional, easily lead to coal-grinding machine barrel with coal pulverizer electric current
Internal portion different-diameter abrading-ball ratio is unreasonable, and the crushing force to coal cinder, coal grain is caused to have a surplus, and grinding forces are insufficient；Due to this
Under working condition, the DYNAMIC DISTRIBUTION of different diameter abrading-balls is unfavorable for high efficiency grinding；In addition often to deviate design coal larger for coal quality, make to make
Powder unit consumption increases.
For this purpose, inventor, the product design and manufacturing experience to abrading-ball for many years propose a kind of for ball-grinding machine abrading-ball
Method for visualizing of the quantized level with technology is to solve the above problems.
Summary of the invention
The object of the present invention is to provide a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level, with can
Depending on change method by few experiment, best abrading-ball useful load, most economical Material quality of grinding balls and best abrading-ball grading distribution scheme have been obtained,
It breaks through due to being made so far by the multifactor restriction such as grinding ball material, ball milling equipment, material characteristic, working environment and interactive effects
The modern abrading-ball gradation problem of research both at home and abroad is all stuck in the qualitative research stage, breaks through to the energy-saving and drop for using abrading-ball to generate
The effect of low production cost is not significant, unstable, in addition excessively relying on experience, causes " bottleneck " that can not be promoted and applied.
In order to achieve the above objectives, the technical scheme is that
A kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level of the present invention, including walk as follows
It is rapid:
(1) ball-grinding machine is reasonably selected according to the demand of known abrasives characteristic and production capacity；
(2) it needs to select armoured material by operating condition and service life；
(3) using method for visualizing after determining 4 gradation performance assessment criteria, the shadow for influencing 4 gradation performance assessment criteria is listed
The factor of sound simultaneously lists its horizontal extent according to working experience, and 4 gradation performance assessment criteria are specially energy consumption of mill, abrading-ball abrasion, go out
Powder rate and production cost reduced rate；The influence factor is specially six, and six influence factors are respectively armoured material, mill
Expect material, abrading-ball useful load, sphere diameter proportion, abrading-ball alloying component and heat treating regime；
(4) it is determined described in the most effective reflection of energy in the horizontal extent drafted in the step (3) by method for visualizing
The horizontal experimental point of the symmetric form of performance assessment criteria variation range；
It (5) is abrading-ball according to a certain percentage with non-integral multiple design by certain of N kind sphere diameter, and in conjunction with the step (4)
The horizontal experimental point of symmetric form out is tested, and is obtained by the visual analyzing to experimental result and is being used certain material N kind
The grading distribution scheme of best different sphere diameter abrading-balls of sphere diameter abrading-ball under the conditions of best abrading-ball useful load and most economical Material quality of grinding balls, institute
Stating N is integer.
Preferably, ball-grinding machine selects coal pulverizer under the conditions of requiring dry grinding or wet-milling in the step (1), when abrasive material is
Metal ore mill is selected when ferrous metal ore or nonferrous metals ore, is selected when abrasive material is nonmetallic soft mine or nonmetallic hard mine
Select ore mill；The sphere diameter of abrading-ball is specially four kinds in the step (5).
Preferably, method for visualizing described in step (3)-(5) is to be in the design of experiment condition, the analysis of experimental result
During optimizing influence factor horizontal extent from experimental result, experimental factors are drawn by science and gradation is examined
2.5D relational graph between index, from the comprehensive analysis to several relational graphs, to obtain " design of experiment condition ", " experiment
As a result the purpose of analysis " and " in experimental result optimize influence factor horizontal extent ", and on six in experimental data influence because
Plain and described four gradation performance assessment criteria carry out the visual analysis method of " influence factor → gradation performance assessment criteria mapping ".
Preferably, experiment condition described in step (4) be designed as multiple influence factor experimental designs being decomposed into it is multiple
Two factor level arrangements, constantly regulate experimental level by drawing method, so that in each two factor Spaces experimental point in approximation
Uniform distribution.
Preferably, the analysis of experimental result described in step (4) is to be sat using two influence factors to be analyzed as transverse and longitudinal
Mark, using test gradation performance assessment criteria as etc. characteristic evidences, production 2.5 dimension scheme, influence factor pair is learnt by the analysis to figure
The case where affecting laws of gradation performance assessment criteria, multiple influence factors, is decomposed into several 2.5 dimension graphic operations；Optimize in experimental result
Influence factor horizontal extent is to draw several described 2.5 dimensions by superposition to scheme, and finds the influence of specific gradation performance assessment criteria range
Factor numberical range, to achieve the purpose that seek excellent experimental result optimization experiment.
Preferably, best abrading-ball useful load described in step (5) be under the premise of realizing normal flour extraction, it is obtained
Lowest production cost is best abrading-ball useful load.
Preferably, when ball-grinding machine is coal pulverizer, most economical Material quality of grinding balls is Cr grinding balls, and the chromium content is
10.86%, determine that best four kinds different sphere diameter abrading-ball grading distribution schemes are 60: Φ 50: Φ 40: Φ 30=11.65:50.11 of Φ:
28.17:10.07, it is determined that best abrading-ball useful load is 36.23t.
The beneficial effects of the present invention are,
(1) in ball mill operational process, ball mill whether can set in single hop or multistage workspace the present invention
Determine abrasive material and medium is formed under conditions of preferable pack completeness, can be made by the determination of the grading distribution scheme to best different sphere diameter abrading-balls
High-quality abrading-ball adapts to different operating environment, gives full play to its excellent service performance, embodies apparent energy-saving and drop
The effect of low product production cost；
(2) present invention designs various ball mills gradation technical solutions, and comprehensively considers and analyze single hop or multistage work
Industry area abrading-ball stream kinetic characteristic, to by performance assessment criteria and influence factors such as energy consumption of mill, abrading-ball abrasion, flour extraction, production costs
It counted, calculated with method for visualizing with the skill element experimental system of the compositions such as level, being arranged and optimization obtains abrading-ball
Optimum gradation technique；And method for visualizing and map are applied, in conjunction with live practical, the grade of the most preferably different sphere diameter abrading-balls of formulation abrading-ball
With scheme, guarantee that it is horizontal to be reliably in engineering state optimum gradation for abrading-ball gradation in ball mill；
(3) present invention on 4 gradation performance assessment criteria (energy consumption, abrasion, flour extraction, production cost), 6 gradations influence because
It plain (armoured material, abrasives, abrading-ball useful load, abrading-ball sphere diameter proportion, abrading-ball alloying component and heat treating regime) and respectively takes
In the experimental system of 13 level points composition, not only ground with method for visualizing with few experiment number (13 groups times)
Ball optimum gradation scheme, and obtain ball milling coal dust least cost best abrading-ball useful load and most economical Material quality of grinding balls；
(4) present invention has obtained best abrading-ball useful load, most economical abrading-ball with method for visualizing by few experiment
Material and best abrading-ball grading distribution scheme are broken through due to multifactor by grinding ball material, ball milling equipment, material characteristic, working environment etc.
It restricts and interactive effects and making studies abrading-ball gradation problem both at home and abroad so far and are all stuck in the qualitative research stage, break through to making
The effect that is energy-saving and reducing production cost generated with abrading-ball is not significant, unstable, in addition excessively relying on experience, causes nothing
" bottleneck " that method promotes and applies.
Detailed description of the invention
As Fig. 1 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount is in the 60mm abrading-ball dosage not influence floor map to power consumption simultaneously；
As Fig. 2 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount does not tie up schematic diagram to the influence of power consumption 2.5 simultaneously in 60mm abrading-ball dosage；
As Fig. 3 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount is in 60mm abrading-ball dosage not simultaneously to the total ball load schematic cross-section of the influence of power consumption；
As Fig. 4 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount is when 60mm abrading-ball dosage is 15% to the influence curve schematic diagram of power consumption；
As Fig. 5 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount Cr content not influence floor map to power consumption simultaneously in abrading-ball；
As Fig. 6 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount Cr content in abrading-ball does not tie up schematic diagram to the influence of power consumption 2.5 simultaneously；
As Fig. 7 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount in abrading-ball Cr content not simultaneously to the total ball load schematic cross-section of the influence of power consumption；
As Fig. 8 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with technology method for visualizing in general assembly
Ball amount is when Cr content is 4% in abrading-ball to the influence curve schematic diagram of power consumption；
Such as the abrading-ball that Fig. 9 is a kind of method for visualizing for ball-grinding machine abrading-ball quantized level with technology of the present invention
Total installed capacity weight and influence schematic diagram of the 60mm diameter abrading-ball installation rate to abrasion；
As Figure 10 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with total in the method for visualizing of technology
Ball load power consumption in four kinds of different-diameter abrading-balls and Cr content difference is that 20kWh/t optimizes interval diagram；
As Figure 11 be it is of the present invention it is a kind of for ball-grinding machine abrading-ball quantized level with total in the method for visualizing of technology
Ball load, which does not reduce percentage to cost simultaneously in four kinds of different-diameter abrading-balls and Cr content, influences schematic diagram.
Specific embodiment
The present invention is described in further details with specific implementation example with reference to the accompanying drawing.
It is to take referring to foundation and periodically install major diameter abrading-ball side additional with coal pulverizer electric current that traditional coal pulverizer, which installs abrading-ball additional mainly,
Formula (φ 60mm), it is unreasonable to easily lead to coal pulverizer inner barrel different-diameter abrading-ball ratio, causes the crushing force to coal cinder, coal grain
It has a surplus, and grinding forces are insufficient；Since under this working condition, the DYNAMIC DISTRIBUTION of different diameter abrading-balls is unfavorable for high efficiency grinding；In addition coal
It is larger that matter often deviates design coal, increases unit power consumption of coal pulverizing.
The present invention designs various ball mills gradation technical solutions, and comprehensively considers and analyze single hop or multistage operation area
Abrading-ball stream kinetic characteristic, forms to by the performance assessment criteria such as energy consumption, abrasion, flour extraction, production cost and influence factor and level etc.
Skill element experimental system counted, calculated with method for visualizing, being arranged and optimization obtains optimum accumulation of mill-balls technique；
And method for visualizing and map are applied, in conjunction with live reality, the grading distribution scheme of the most preferably different sphere diameter abrading-balls of abrading-ball is formulated, guarantees ball
Abrading-ball gradation can be stablized, is reliably horizontal in engineering state optimum gradation in grinding machine.
Now by the abrading-ball gradation technology of application Mr. Yu power plant 300MW unit abrading-ball coal pulverizer and selected most economical abrading-ball
Organization design and control technology as case content and introduce its operation and using effect.
Method for visualizing refers to: in contrived experiment condition, analysis experimental result or even the optimizing factors from experimental result
In horizontal process, 2 dimensions or 3 dimensions relational graph (also referred to as phasor) between empirical factor and experimental index are drawn by science, from right
The comprehensive analysis of several relational graphs, to obtain " design of experiment condition ", " analysis of experimental result " and " water of empirical factor
Flat optimization " purpose.(single hop or multistage operation area abrading-ball are considered and analyzed by designing various ball mills gradation technical solutions
Flow kinetic characteristic；To the skill being made of the performance assessment criteria such as energy consumption, abrasion, flour extraction, production cost and influence factor and level etc.
Art element experimental system is counted with method for visualizing, is calculated, being arranged and optimization obtains optimum accumulation of mill-balls technique.
Experimental design (multifactor&multilevel visualized Design, m2VD): by experiment of many factor
Design is decomposed into multiple 2 factor level arrangements, experimental level is constantly regulate by drawing method, so that in each 2 factor Spaces
Experimental point is in the distribution of approaches uniformity.
Analysis of experimental results (multifactor&multilevel&multitarget visualized Analysis,
m3VA): using two factors to be analyzed as transverse and longitudinal coordinate, using experimental index as etc. characteristic evidences, production 2.5 dimension figure.It is logical
Cross to figure analyze master factor to the affecting laws of index.The case where Multiple factors, is decomposed into several 2.5 dimension graphic operations.Experiment
Result optimizing (multifactor&multilevel&multitarget visualized Optimize, m3VO): by folded
Add and draw several above-mentioned 2.5 dimension figures, find the factor numberical range of the indication ranges such as specific, seeks excellent experiment knot to reach
The purpose of fruit optimization experiment.
A kind of method for visualizing for matching technology for ball mills quantized level, includes the following steps:
(1) ball mill is reasonably selected according to the demand of known abrasives characteristic and production capacity；First mainly from tripartite
Face further apparent ball mill actual motion characteristic and production capacity:
1) ball mill operation system；
2) ball mill production capacity and economic performance assessment criteria；
3) workpiece material, structure, form such as abrasive nature and the various liner plates of ball mill, end plate, partition etc. is to abrading-ball gradation
The influence (invalid abrading-ball, small metal block) of performance assessment criteria.
4) ball mill gradation cast grinding ball type is determined:
Coal pulverizer (dry grinding, wet-milling)；
Metal ore mill (ferrous metal ore, nonferrous metals ore)；
Nonmetallic ore mill (nonmetallic soft mine, nonmetallic hard mine).
(2) it needs to select armoured material by operating condition and service life；
(3) it is studied in the case where determining the known conditions such as armoured material, abrasives, is guaranteeing production capacity, quality (main granularity ratio
System) under the premise of, using lowest production cost as the criterion of optimum process scheme；Abrading-ball useful load determines power consumption；Abrading-ball
It can (mainly being determined by ingredient and heat treatment process) and the decision abrasion of abrading-ball gradation effect；Ball milling minerals production cost mainly by
Power consumption, abrasion and different materials abrading-ball purchasing price collectively form analysis, calculating, checking system.
Three classes are generally divided by the use characteristic of abrading-ball application field: the industry such as thermal power generation, mine, cement, general character
Research and development element:
1) gradation performance assessment criteria: energy consumption of mill, abrading-ball abrasion, flour extraction and production cost reduced rate；
2) grading work condition: mineral abrasive hardness, the initial lumpiness of mineral abrasive material (particle), working environment parameter (soda acid
Degree, humidity, mass flow-rate, flow velocity etc.), grinding machine equipment parameter (mill diameter, revolving speed, length etc.)；
3) influence factor (taking preferable grinding machine pack completeness): armoured material, abrasives, abrading-ball useful load, abrading-ball sphere diameter are matched
Than, abrading-ball alloying component and heat treating regime；
4) (under the premise of realizing normal flour extraction, obtained lowest production cost is best mill to abrading-ball useful load (t)
Ball useful load, which mainly determines power consumption, in the range of 30-55t)；
5) using method for visualizing after determining 4 gradation performance assessment criteria, the influence for influencing 4 gradation performance assessment criteria is listed
Factor simultaneously lists its horizontal extent according to working experience.
(4) it is determined described in the most effective reflection of energy in the horizontal extent drafted in the step (3) by method for visualizing
The horizontal experimental point of the symmetric form of performance assessment criteria variation range；
It (5) is abrading-ball according to a certain percentage with non-integral multiple design by certain of 4 kinds of sphere diameters, and in conjunction with the step (4)
The horizontal experimental point of symmetric form out is tested, and is obtained by the visual analyzing to experimental result and is being used 4 bulb of chromium material
The grading distribution scheme of best different sphere diameter abrading-balls of diameter abrading-ball under the conditions of best abrading-ball useful load and most economical Material quality of grinding balls, it is described
Best abrading-ball useful load is under the premise of realizing normal flour extraction, and obtained lowest production cost is best abrading-ball loading
Amount.
The method for visualizing be specially the design of experiment condition, the analysis of experimental result so that from experimental result it is excellent
During changing influence factor horizontal extent, the 2.5D between experimental factors and gradation performance assessment criteria is drawn by science and is closed
System's figure, from the comprehensive analysis to several relational graphs, to obtain " design of experiment condition ", " analysis of experimental result " and " reality
Test optimization influence factor horizontal extent in result " purpose, and six influence factors in experimental data and four gradations are examined
Core index carries out the visual analysis method of " influence factor → gradation performance assessment criteria mapping ".Being designed as the experiment condition will
Multiple influence factor experimental designs are decomposed into multiple two factor levels arrangements, constantly regulate experimental level by drawing method, make
Obtaining in each two factor Spaces experimental point is in the distribution of approaches uniformity.The analysis of the experimental result is with to be analyzed two
A influence factor as transverse and longitudinal coordinate, using test gradation performance assessment criteria as etc. characteristic evidences, 2.5 dimension figure of production, by figure
Analysis learn influence factor to the affecting laws of gradation performance assessment criteria, the case where multiple influence factors, is decomposed into several 2.5 dimensions
Graphic operation；Optimizing influence factor horizontal extent in experimental result is to draw several described 2.5 dimensions by superposition to scheme, and finds specific grade
Influence factor numberical range with performance assessment criteria range, to achieve the purpose that seek excellent experimental result optimization experiment.
" design of experiment condition "
Now by the abrading-ball of 4 kinds of sphere diameters according to a certain percentage with non-integral multiple design, and the symmetric form level experiment of combination clicks through
Row experiment can be obtained by the visual analyzing to experimental result and filled using 4 kinds of sphere diameter abrading-balls of certain material in best abrading-ball
The grading distribution scheme of best different diameter abrading-balls under the conditions of carrying capacity and most economical chromium system Material quality of grinding balls；
1) sphere diameter proportion (mm) is as follows:
60: Φ 50: Φ 40: Φ 30=9.96:37.90:37.53:14.61 of M1-Φ
60: Φ 50: Φ 40: Φ 30=11.65:50.11:28.17:10.07 of M2-Φ
60: Φ 50: Φ 40: Φ 30=13.65:37.37:41.14:7.84 of M3-Φ
60: Φ 50: Φ 40: Φ 30=14.90:47.44:32.88:4.78 of M4-Φ
60: Φ 50: Φ 40: Φ 30=16.65:35.60:24.78:22.97 of M5-Φ
60: Φ 50: Φ 40: Φ 30=18.79:45.91:28.00:7.30 of M6-Φ
60: Φ 50: Φ 40: Φ 30=19.93:34.26:29.73:16.08 of M7-Φ
60: Φ 50: Φ 40: Φ 30=21.46:44.27:33.00:1.27 of M8-Φ
60: Φ 50: Φ 40: Φ 30=30.00:32.29:35.53:2.18 of M9-Φ
60: Φ 50: Φ 40: Φ 30=25.72:42.85:27.23:4.20 of M10-Φ
60: Φ 50: Φ 40: Φ 30=27.24:29.62:39.72:3.42 of M11-Φ
60: Φ 50: Φ 40: Φ 30=28.00:39.45:31.45:1.10 of M12-Φ
60: Φ 50: Φ 40: Φ 30=27.33:48.50:18.00:6.17 of M13-Φ
2) chromium system abrading-ball chromium variation (low chromium → middle chromium → Gao Ge → superelevation chromium, i.e. 2%Cr-20%Cr), thus group
At 4 targets (1. power consumption (kWh/t)；2. wearing away (g/t)；3. flour extraction (t/h)；4. the rate of cost reduction (%)), 6 factors (shield
First material, abrasives, abrading-ball useful load, sphere diameter proportion, abrading-ball alloying component and heat treating regime), 13 horizontal experimental points
The visual design, analysis and optimization system.
It is taking to 4 gradation performance assessment criteria (energy consumption, abrasion, flour extraction, production cost), 6 gradation influence factors and respectively
In the experimental system of 13 level points composition, not only ground with method for visualizing with few experiment number (13 groups times)
Ball optimum gradation scheme, and obtain ball milling coal dust least cost best abrading-ball useful load and most economical Material quality of grinding balls；Sphere diameter
The chromium system abrading-ball of proportion and different chromium contents mainly determines to wear away.
" analysis of experimental result " and " optimizing influence factor horizontal extent in experimental result "
The total useful load of abrading-ball mainly determines the power consumption of production ton coal dust；Fig. 1-Fig. 4 is to investigate the total useful load of abrading-ball in Φ
For 60mm abrading-ball difference additional proportion influences power consumption, shows and investigate it in 3 kinds of abrading-balls such as Φ 50mm, Φ 40mm, Φ 30mm
The method that different additional proportions influence power consumption.Observe total ball load in 60mm abrading-ball from Fig. 2 on 2.5D figure and in conjunction with Fig. 1
Dosage is not all in simultaneously mild nonlinear variation to the influence of power consumption.With the increase of total ball load from the figure of the middle section Fig. 3
Power consumption is increased, but since 60mm sphere diameter abrading-ball occupation ratio difference is so a section not instead of curve, a face.
Figure 5-8 with investigate the total useful load of abrading-ball in abrading-ball Cr content not simultaneously to the influence of power consumption and total ball load
When Cr content is 4% in abrading-ball to the influence of power consumption for, it is different that the total useful load of abrading-ball Cr content in abrading-ball can be observed
When influence to power consumption be all in nonlinear change.It observes when from ball load total in Fig. 8, Cr content is 4% in abrading-ball with total
The increase power consumption of ball load is the curve of about one fluctuation.
Fig. 9, can in figure to investigate abrading-ball total installed capacity weight and influence schematic diagram of the 60mm diameter abrading-ball installation rate to abrasion
The installation rate and waiting for the total useful load of abrading-ball for seeing 60mm diameter abrading-ball wear away line, advanced optimize the installation rate of 60mm diameter abrading-ball
With the corresponding section of the total useful load of abrading-ball.
Figure 10 is to investigate optimization of total ball load in four kinds of different-diameter abrading-balls with power consumption when Cr content difference for 20kWh/t
For section, show when investigating total ball load power consumption being other different values in four kinds of different-diameter abrading-balls and Cr content difference
Optimize section.In conjunction with Fig. 9 as it can be seen that power consumption to be maintained 20kWh/t energy consumption level hereinafter, total ball load should control 35t with
Under, the control of 60mm diameter ball laod ratio example controls 30~50% 50mm diameter ball laod ratio example between 10~30% at this time
Between, between 40mm diameter ball laod ratio example control 20~40%, 30mm diameter ball laod ratio example is controlled between 1~20%, Cr
Content control between 2~20%.This only considers the optimum results of power consumption index, comprehensively analysis it is also contemplated that abrasion,
Flour extraction and cost reduce index.
Figure 11 is to investigate total ball load in four kinds of different-diameter abrading-balls and when the rate of cost reduction is 75% when Cr content difference
For optimizing section, show that it is other for investigating total ball load rate of cost reduction when four kinds of different-diameter abrading-balls are with Cr content difference
Optimization section when different value.It should be controlled in 30t or less in total ball load in conjunction with Figure 10 is visible, it is possible to reach least cost.
All sphere diameter abrading-ball amount ranges and the further severization of amount containing Cr, to 60mm diameter ball laod ratio example control 11%-24% it
Between, to the control of 50mm diameter ball laod ratio example between 31%-44%, 40mm diameter ball laod ratio example is controlled between 19%-34%,
But between 30mm diameter ball laod ratio example control 4%-15%, the content of Cr is controlled between 3%-14%.Always with Analysis of Electricity knot
Fruit trend is identical.The rate of cost reduction improves again, without publicly-owned section.
Similarly, also using each factor of method for visualizing development to abrasion, to the object effects such as flour extraction trend and degree
Research.
Table 1 is visualization optimum results system, as shown in table 1, passes through the influence factor to four kinds of different sphere diameter abrading-balls
Visual analyzing, optimization to the mapping of gradation performance assessment criteria, consider further that certain technological factors, it is determined that M2 group (Φ 60: Φ
50: Φ 40: Φ 30=11.65:50.11:28.17:10.07) it can be used as optimum gradation scheme.So that it is determined that best abrading-ball dress
Carrying capacity are as follows: 36.23t；Most economical preferred Material quality of grinding balls are as follows: the high-Cr grinding balls containing Cr10.86% or so.To realize to certain
It is Material quality of grinding balls using gradation performance assessment criteria as test stone, using the influence factor of performance assessment criteria as experimental variable, finally realizes
Best different sphere diameters under the conditions of using 4 kinds of sphere diameter abrading-balls of chromium material in best abrading-ball useful load and most economical Material quality of grinding balls
The visualized operation of the grading distribution scheme of abrading-ball.
Table 1 visualizes optimum results system
In ball mill operational process, ball mill whether can be ground the present invention in single hop or multistage workspace in setting
Material and medium are formed under conditions of preferable pack completeness, can be made by the determination of the grading distribution scheme to best different sphere diameter abrading-balls high-quality
Abrading-ball adapts to different operating environment, gives full play to its excellent service performance, embodies apparent energy-saving and reduction and produces
The effect of product production cost；The present invention designs various ball mills gradation technical solutions, and comprehensively consider and analyze single hop or
Multistage operation area abrading-ball stream kinetic characteristic, to by the performance assessment criteria such as energy consumption, abrasion, flour extraction, production cost and influence factor with
The skill element experimental system of the compositions such as level is counted with method for visualizing, is calculated, being arranged and optimization obtains abrading-ball most
Good gradation technique；And method for visualizing and map are applied, in conjunction with live practical, the gradation of the most preferably different sphere diameter abrading-balls of formulation abrading-ball
Scheme guarantees that abrading-ball gradation can be stablized in ball mill, reliably horizontal in engineering state optimum gradation；It breaks through due to by abrading-ball material
Material, ball milling equipment, material characteristic, working environment etc. it is multifactor restriction and interactive effects and to study abrading-ball both at home and abroad so far
Gradation problem is all stuck in the qualitative research stage, breaks through the effect that is energy-saving and reducing production cost to using abrading-ball to generate
It is not significant, unstable, in addition excessively relying on experience, cause " bottleneck " that can not be promoted and applied.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or in the change being equal in the scope of the present invention and includes by the present invention.
Claims (7)
1. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level, which comprises the steps of:
(1) ball-grinding machine is reasonably selected according to the demand of known abrasives characteristic and production capacity；
(2) it needs to select armoured material by operating condition and service life；
(3) using method for visualizing after determining four gradation performance assessment criteria, the influence for influencing four gradation performance assessment criteria is listed
Factor simultaneously lists its horizontal extent according to working experience, and four gradation performance assessment criteria are specially energy consumption of mill, abrading-ball abrasion, go out powder
Rate and production cost reduced rate；The influence factor is specially six, and six influence factors are respectively armoured material, abrasive material
Material, abrading-ball useful load, sphere diameter proportion, abrading-ball alloying component and heat treating regime；
(4) determining in the horizontal extent drafted in the step (3) by method for visualizing can the most effective reflection examination
The horizontal experimental point of the symmetric form of index variation range；
It (5) is abrading-ball according to a certain percentage with non-integral multiple design by certain of N kind sphere diameter, and obtained in conjunction with the step (4)
The horizontal experimental point of symmetric form is tested, and is obtained by the visual analyzing to experimental result and is being used certain material N kind sphere diameter
The grading distribution scheme of best different sphere diameter abrading-balls of abrading-ball under the conditions of best abrading-ball useful load and most economical Material quality of grinding balls, the N
For integer.
2. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 1, feature
It is, ball-grinding machine selects coal pulverizer under the conditions of requiring dry grinding or wet-milling in the step (1), when abrasive material is ferrous metal ore
Or metal ore mill is selected when nonferrous metals ore, the differential grinding machine when abrasive material is nonmetallic soft mine or nonmetallic hard mine；
The sphere diameter of abrading-ball is specially four kinds in the step (5).
3. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 1, feature
It is, method for visualizing described in step (3)-(5) is to tie in the design of experiment condition, the analysis of experimental result or even from experiment
During optimizing influence factor horizontal extent in fruit, drawn between experimental factors and gradation performance assessment criteria by science
2.5D relational graph, from the comprehensive analysis to several relational graphs, to reach " design of experiment condition ", " analysis of experimental result "
The purpose of " optimizing influence factor horizontal extent from experimental result ", and to six influence factors and described four in experimental data
A gradation performance assessment criteria carries out the visual analysis method of " influence factor → gradation performance assessment criteria mapping ".
4. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 3, feature
It is, multiple influence factor experimental designs are decomposed into multiple two factor levels by being designed as of experiment condition described in step (4)
It arranges, experimental level is constantly regulate by drawing method, so that being in the distribution of approaches uniformity in each two factor Spaces experimental point
State.
5. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 3, feature
It is, the analysis of experimental result described in step (4) is using two influence factors to be analyzed as transverse and longitudinal coordinate, to test grade
With characteristic evidences such as performance assessment criteria conducts, 2.5 dimension figure of production learns influence factor to gradation performance assessment criteria by the analysis to figure
Affecting laws, the case where multiple influence factors is decomposed into several 2.5 dimension graphic operations；It is horizontal to optimize influence factor in experimental result
Range is to draw several described 2.5 dimensions by superposition to scheme, and finds the influence factor numberical range of specific gradation performance assessment criteria range,
To achieve the purpose that seek excellent experimental result optimization experiment.
6. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 1, feature
Be, best abrading-ball useful load described in step (5) be under the premise of realizing normal flour extraction, obtained lowest manufactured at
This is best abrading-ball useful load.
7. a kind of method for visualizing for matching technology for ball-grinding machine abrading-ball quantized level according to claim 1, feature
It is, when ball-grinding machine is coal pulverizer, most economical Material quality of grinding balls is chromium system abrading-ball, and the chromium content is 10.86%, is determined
Best four kinds different sphere diameter abrading-ball grading distribution schemes are 60: Φ 50: Φ 40: Φ 30=11.65:50.11:28.17:10.07 of Φ,
It has been determined that best abrading-ball useful load is 36.23t.
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| CN107451731B (en) * | 2017-07-31 | 2020-09-22 | 成安金隅太行水泥有限公司 | Method for quickly determining optimal gradation of ceramic grinding body of cement ball mill |
| CN110931717B (en) * | 2019-12-06 | 2021-11-02 | 浙江埃登达新能源材料有限公司 | Ball-milling negative electrode bag and preparation method thereof |
| CN112718134A (en) * | 2020-12-17 | 2021-04-30 | 襄阳龙蟒钛业有限公司 | Improved method for improving wet grinding efficiency and reducing abrasion |
| CN114471849A (en) * | 2022-01-28 | 2022-05-13 | 南京银茂铅锌矿业有限公司 | Ore grinding medium proportioning method in primary grinding machine using magnetic lining plate |
| CN115845991A (en) * | 2022-12-06 | 2023-03-28 | 昆明理工大学 | Method for determining steel ball grading by predicting semi-autogenous grinding hard stone crushing effect based on Tavares crushing model |
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