CN104907138A - Low energy consumption ball milling method of construction ceramic raw material - Google Patents
Low energy consumption ball milling method of construction ceramic raw material Download PDFInfo
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- CN104907138A CN104907138A CN201510331958.3A CN201510331958A CN104907138A CN 104907138 A CN104907138 A CN 104907138A CN 201510331958 A CN201510331958 A CN 201510331958A CN 104907138 A CN104907138 A CN 104907138A
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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
- 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
- B02C17/18—Details
- B02C17/20—Disintegrating members
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- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a low energy consumption ball milling method of a construction ceramic raw material. The method comprises the following steps: (A) feeding the construction ceramic raw material into a ball mill for coarse milling and screening the slurry through a 250 mesh screen, so that the fineness of the coarsely milled slurry is 6-10% in percentage by the weight of the slurry, wherein the ball mill is provided with ball stones with specifications of 40, 50, 60 and 80; (B) placing the coarsely milled slurry in a slurry pool for homogenizing; (C) pumping the homogenized and coarsely milled slurry into another ball mill for fine milling, so that the fineness of the finely milled slurry is 0.8-1.0%, wherein the ball mill is provided with ball stones of specifications of 10, 20, 30 and 40. According to the low energy consumption ball milling method, through stage by stage ball milling, the raw material milling effect and efficiency are improved; meanwhile, the energy consumption of ball milling is greatly lowered and the corresponding production cost is lowered; as an original ball milling device can be upgraded to use the ball milling method, scale production can be realized without large amount of money investment and the device investment cost of an enterprise is lowered.
Description
Technical field
The present invention relates to building trade ball-milling technology technology, in particular a kind of architectural pottery raw material low energy consumption ball grinding method.
Background technology
Ball milling is an important procedure during architectural pottery is produced, and what substantially adopt at architectural pottery production process Raw ball milling is the disposable wet ball grinding technique of discontinuous.Ball milling is added in ball mill by raw material and water, impacts, extrudes and under abrasive action, oarse-grained raw material are become the process of the moderate slurry of granularity at ballstone.Ball milling operation is the operation of a highly energy-consuming, and the power consumption of ball milling operation is one of main energy consumption of ceramic producer, and the power consumption of ball milling operation accounts for whole Production of Ceramics business electrical amount 15%-20% according to statistics, is a high energy consumption operation.Last year, domestic ceramic industry output was more than 10,000,000,000 squares, according to main product on market (600 specifications and 800 specifications) one square of product weight at about 25 kilograms, the ceramic raw material of ball milling is needed to be 2.5 hundred million tons (2,500 hundred million kilograms) every year, and ball milling one ton of powder energy consumption is generally 35 degree of electricity, we can estimate ceramic industry and are about 8,000,000,000 degree at the power consumption of ball milling operation in 1 year thus.From analysis above, we can find out that annual architectural pottery ball milling consumption of raw materials falls a large amount of electric energy.
In the evolution of architectural pottery, ball grinding technique is also at development, and grinding efficiency is also in continuous improvement.The time of nearly 20 years, the tonnage of ball mill improved constantly and is becoming main flow for mainstream development to 60 tons from 8 tons; Ball-milling medium develops into middle high alumina ballstone from initial cobblestone; Ballstone grating develops into more rational ballstone grating from initial stepless joining; Through a series of development, the ball milling power consumption of ceramic raw material per ton is also reduced to about 35 degree from initial close to 50 degree.The method that current architectural ceramic industry generally adopts is step disposable ball milling, and this method Problems existing is that ballstone grating specific aim is strong, can not at the highest grinding efficiency of the realization in different ball milling stage.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of architectural pottery raw material low energy consumption ball grinding method, be intended to solve current architectural pottery raw material ball milling energy consumption high, grind inefficient problem.
Technical scheme of the present invention is as follows:
A kind of architectural pottery raw material low energy consumption ball grinding method, wherein, comprises the following steps:
A, architectural pottery raw material sent into be equipped with specification 40,50,60 and 80 ballstone ball mill in roughly grind, make corase grind disposed slurry fineness be 6-10%, this fineness is crossed 250 mesh sieve remaining slurry percentage by weights with slurry and is characterized;
B, suction after corase grind disposed slurry homogenizing to be equipped with in the ball mill of 10,20,30 and 40 ballstones and to carry out fine grinding, make fine grinding disposed slurry fineness be 0.8 ~ 1.0%, this fineness is crossed 250 mesh sieve remaining slurry percentage by weights with slurry and is characterized.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, adds the water accounting for slurry 33% percentage by weight in rough grinding pass in ball mill in described steps A.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, the frequency setting controlling the frequency converter of ball mill during corase grind is 38-50Hz.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, during corase grind, in ball mill, 40,50,60 and 80 ballstone ratios are 20 ~ 30%:20% ~ 30%:25 ~ 35%:15 ~ 25%.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, the frequency setting controlling the frequency converter of ball mill during fine grinding is 36-44Hz.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, during fine grinding, in ball mill, 10,20,30 and 40 ballstone proportionings are 5 ~ 15%:50 ~ 60%:15 ~ 25%:10 ~ 20%.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, adopts proportion to be 2.8g/cm during corase grind
3middle aluminium ballstone, during fine grinding adopt proportion be greater than 3.6g/cm
3aluminium oxide ballstone.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, described architectural pottery raw material needs through primary comminution process before roughly grinding, and enables feed particles by 3 mesh sieves.
Described architectural pottery raw material low energy consumption ball grinding method, wherein, corase grind and the ball mill used by fine grinding are 60 tons of ball mills.
Beneficial effect: the invention provides a kind of architectural pottery raw material low energy consumption ball grinding method; the method improves raw material milling efficiency by ball milling stage by stage; grind efficiency to get a promotion; ball milling energy consumption significantly reduces simultaneously; corresponding production cost is also minimized; ball grinding method of the present invention can utilize the upgrading of original ball-grinding machine to carry out simultaneously, drops into and can accomplish scale production, reduce the equipment investment expense of manufacturing enterprise without the need to substantial contribution.
Detailed description of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of architectural pottery raw material low energy consumption ball grinding method, be intended to existing building ceramic raw material ball milling energy consumption high, grind inefficient problem.
Architectural pottery raw material low energy consumption ball grinding method of the present invention, comprises the following steps:
A, architectural pottery raw material sent into be equipped with specification 40,50,60 and 80 ballstone ball mill in, then add 33%(percentage by weight) water roughly grind, corase grind disposed slurry fineness is made to be that 250 mesh sieve residuals weight percentage signs crossed by 6-10%(slurry, as follows).Wherein, the frequency setting controlling the frequency converter of ball mill during corase grind is 38-50Hz.The frequency converter of this frequency can control ball mill and be in suitable rotational speed and carry out ball milling to raw material, takes into account energy consumption and grinds efficiency.
In preferred embodiment, during corase grind, in ball mill, 40,50,60 and 80 ballstone ratios are 20 ~ 30%:20% ~ 30%:25 ~ 35%:15 ~ 25%.Have under the ballstone of the said ratio drum's speed of rotation under the FREQUENCY CONTROL that frequency changer is suitable coordinates and efficiency is ground the most efficiently to raw material, can architectural pottery raw material be ground fineness (use does not characterize fineness by the percentage by weight of 250 mesh sieves) by low energy consumption is relatively 6%-12%.In addition, during corase grind, ballstone adopts proportion to be 2.8g/cm
3middle aluminium ballstone.
B, corase grind disposed slurry is put into stock tank carry out homogenizing;
C, the slurry suction of homogenizing after corase grind being crossed are equipped with in the ball mill of 10,20,30 and 40 ballstones and carry out fine grinding, make fine grinding disposed slurry fineness be 0.8 ~ 1.0%.
Wherein, the frequency setting controlling the frequency converter of ball mill during fine grinding is 36-44Hz.In preferred embodiment, during fine grinding, in ball mill, 10,20,30 and 40 ballstone proportionings are 5 ~ 15%:50 ~ 60%:15 ~ 25%:10 ~ 20%.The ballstone of said ratio has and grinds efficiency the most efficiently to corase grind disposed slurry under the rotating speed of appropriate frequency frequency changer coordinates, can architectural pottery raw material is ground fineness by low energy consumption is relatively that 0.8 ~ 1.0%(use does not characterize fineness by the percentage by weight of 250 mesh sieves).In addition, proportion is adopted to be greater than 3.6g/cm during fine grinding
3aluminium oxide ballstone.
Further, described architectural pottery raw material needs through primary comminution process before roughly grinding, and enables feed particles by 3 mesh sieves.Corase grind and the ball mill used by fine grinding process are 60 tons of ball mills.
The present invention is directed to the problem that the grating specific aim of disposable ball milling is not strong, by raw material ball milling being divided into corase grind and fine grinding two processes.In rough grinding pass, the phenomenon that ceramic raw material particle is large, main dependence ballstone impacts and carries out fragmentation to raw material, the crushing effect of the larger generation of impulsive force of ballstone is better, therefore the ballstone of large gauge is adopted during corase grind, the raw material giving full play to impulsive force that large gauge ballstone produces in mechanical milling process large to granularity carries out fragmentation, and raw material ball being ground to fineness (with not characterizing fineness by the percentage of 250 mesh sieves) is 6%-12%; In the fine grinding stage, feed particles is smaller, and it is more effective that milling between ballstone reduces material fineness, and we adopt the ballstone of small dimension, give full play to the effect of milling between little ballstone, the fineness of ceramic raw material is rapidly reduced to less than 1.0%.By ball milling stage by stage, the monthly average ball milling power consumption of raw material per ton is reduced to 28. 45-30.22 degree left and right by 34.22-37.91, and the ball milling power consumption of a ball milling observable index ball milling raw material per ton of secondary ball milling raw material per ton reduces by 19.7%.On the basis of grading ball milling, we passed through to adopt hyperbaric aluminium oxide ballstone (3.6g/cm in the fine grinding stage
3), aluminium ballstone (2.8g/cm in the grinding efficiency ratio of generation
3) larger, monthly average ball milling power consumption is reduced to 26.82-29.14 degree, reduction by 22.4% compared with disposable ball milling monthly average power consumption.By adopting ball milling and hyperbaric little ballstone stage by stage, monthly average ball milling power consumption is reduced by 22.4% by us.Therefore the present invention is when ball milling stage by stage, by adjustment ballstone grating, drum's speed of rotation and ballstone proportion, achieves the ball grinding method significantly reducing ball milling energy consumption.
Make a concrete analysis of by experiment, the present invention has the following advantages and effect: first the present invention improves on the basis of an existing use ball milling, therefore drops into without substantial contribution and both can accomplish scale production; Next is the present invention according to raw material at the different crushing mechanism of the different phase of ball milling, the ballstone of large gauge is adopted to improve the crushing effect of ballstone impact to raw material in the corase grind stage, adopt the ballstone of small dimension in the fine grinding stage, improve and mill to the crushing effect of raw material between ballstone; The present invention adopts frequency converter to adjust drum's speed of rotation in addition, adopts higher rotating speed to play the crushing effect of ballstone impact to raw material, adopt lower rotating speed to play mill to the crushing effect of raw material between ballstone in the fine grinding stage in the corase grind stage; Last the present invention adopts large proportion aluminium oxide ballstone in the fine grinding stage, by improving ballstone proportion, improving the active force produced when ballstone is milled, reducing ball milling energy consumption.
In order to better understand the present invention, in conjunction with example, the present invention will be described, but the scope of protection of present invention is not limited to example ranges.
Example one:
The first step: raw material is dropped into feeding machine according to proportioning, then sent to by conveyer belt, the middle aluminium ballstone ratio of 40:50:60:80 specification is in the ball mill of 25%:25%:35%:15%, adds water according to 33% ratio, frequency converter is adjusted to 46HZ, slurry grinding rate to 8.3%.
Second step: slurry is put into stock tank, carries out the process of stirring homogenizing with mixer.
3rd step: again the slurry through corase grind being extracted into aluminium ballstone grating in 10,20,30 and 40 is in the ball mill of 10%:55%:20%:15%, frequency converter is transferred to 42HZ, slurry is ground to 0.86%.
4th step: accepted stock is put into stock tank for subsequent use.
In this experiment, roughly grinding the time used is that the 8 little fineness of slurry constantly reach 8.3%, the fine grinding time used is 4 hours, slurry fineness is 0.86%, share time 12 hours, slurry agitation and take out slurry power consumption per ton be 2 degree, material per ton is 28.76 degree from being dosed into the qualified power consumption of slurry, and the average used time of disposable ball milling is 16 hours, average current drain is 35.5 degree, can show that secondary ball milling observable index ball milling energy consumption reduces by 19.0% data.
Example two:
Repeat the first step in embodiment one and second step operation.
3rd step: the slurry through corase grind is extracted into 10,20,30 and 40 alumina balls stone steps and joins in the ball mill for 10%:55%:20%:15%, frequency converter is transferred to 42HZ, slurry is ground to 0.88%.
4th: slurry is put into stock tank adapted.
In this experiment, roughly grinding the time used is that the 8 little fineness of slurry constantly reach 8.3%, the fine grinding time used is 3 hours, slurry fineness is 0.88%, share time 11 hours, slurry agitation and take out slurry power consumption per ton be 2 degree, material per ton is 26.86 degree from being dosed into the qualified power consumption of slurry, and the average used time of disposable ball milling is 16 hours, average current drain is 35.5 degree, can show that secondary ball milling observable index ball milling energy consumption reduces by 24.34% data.
Example three:
The first step: raw material is dropped into feeding machine according to proportioning, then sent to by conveyer belt, the middle aluminium ballstone ratio of 40:50:60:80 specification is in the ball mill of 30%:20%:35%:15%, adds water according to 33% ratio, frequency converter is adjusted to 40HZ, slurry grinding rate to 8.4%.
Second step: slurry is put into stock tank, carries out the process of stirring homogenizing with mixer.
3rd step: again the slurry through corase grind being extracted into aluminium ballstone grating in 10,20,30 and 40 is in the ball mill of 5%:50%:25%:20%, frequency converter is transferred to 42HZ, slurry is ground to 0.86%.
4th step: accepted stock is put into stock tank for subsequent use.
In this experiment, roughly grinding the time used is that the 9 little fineness of slurry constantly reach 8.4%, the fine grinding time used is 4.5 hours, slurry fineness is 0.91%, share time 13.5 hours, slurry agitation and take out slurry power consumption per ton be 2 degree, material per ton is 31.36 degree from being dosed into the qualified power consumption of slurry, and the average used time of disposable ball milling is 16 hours, average current drain is 35.5 degree, can show that secondary ball milling observable index ball milling energy consumption reduces by 11.7% data.
Example four:
The first step: raw material is dropped into feeding machine according to proportioning, then sent to by conveyer belt, the middle aluminium ballstone ratio of 40:50:60:80 specification is in the ball mill of 30%:20%:30%:20%, adds water according to 33% ratio, frequency converter is adjusted to 46HZ, slurry grinding rate to 8.5%.
Repeat the second step operation in embodiment three.
3rd step: again the slurry through corase grind is extracted into 10,20,30 and 40 alumina balls stone steps and joins in the ball mill for 5%:50%:25%:20%, frequency converter is transferred to 42HZ, slurry is ground to 0.90%.
4th step: accepted stock is put into stock tank for subsequent use.
In this experiment, roughly grinding the time used is that the 8.5 little fineness of slurry constantly reach 8.5%, the fine grinding time used is 3.5 hours, slurry fineness is 0.91%, share time 12.0 hours, slurry agitation and take out slurry power consumption per ton be 2 degree, material per ton is 28.46 degree from being dosed into the qualified power consumption of slurry, and the average used time of disposable ball milling is 16 hours, average current drain is 35.5 degree, can show that secondary ball milling observable index ball milling energy consumption reduces by 19.8% data.
As can be seen from above embodiment, what architectural pottery raw material low energy consumption ball grinding method of the present invention not only increased architectural pottery raw material grinds efficiency, and its energy consumption also significantly reduces.
The invention provides a kind of architectural pottery raw material low energy consumption ball grinding method; the method improves raw material milling efficiency by ball milling stage by stage; grind efficiency to get a promotion; ball milling energy consumption significantly reduces simultaneously; corresponding production cost is also minimized; ball grinding method of the present invention can utilize the upgrading of original ball-grinding machine to carry out simultaneously, drops into and can accomplish scale production, reduce the equipment investment expense of manufacturing enterprise without the need to substantial contribution.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (9)
1. an architectural pottery raw material low energy consumption ball grinding method, is characterized in that, comprise the following steps:
A, architectural pottery raw material sent into be equipped with specification 40,50,60 and 80 ballstone ball mill in roughly grind, make corase grind disposed slurry fineness be 6-10%, this fineness is crossed 250 mesh sieve remaining slurry percentage by weights with slurry and is characterized;
B, suction after corase grind disposed slurry homogenizing to be equipped with in the ball mill of 10,20,30 and 40 ballstones and to carry out fine grinding, make fine grinding disposed slurry fineness be 0.8 ~ 1.0%, this fineness is crossed 250 mesh sieve remaining slurry percentage by weights with slurry and is characterized.
2. architectural pottery raw material low energy consumption ball grinding method according to claim 1, is characterized in that, add the water accounting for slurry 33% percentage by weight in described steps A in rough grinding pass in ball mill.
3. architectural pottery raw material low energy consumption ball grinding method according to claim 1, is characterized in that, the frequency setting controlling the frequency converter of ball mill during corase grind is 38-50Hz.
4. architectural pottery raw material low energy consumption ball grinding method according to claim 1, it is characterized in that, during corase grind, in ball mill, 40,50,40 and 60 ballstone ratios are 20 ~ 30%:20% ~ 30%:25 ~ 35%:10 ~ 20%.
5. architectural pottery raw material low energy consumption ball grinding method according to claim 1, is characterized in that, the frequency setting controlling the frequency converter of ball mill during fine grinding is 36-44Hz.
6. architectural pottery raw material low energy consumption ball grinding method according to claim 1, it is characterized in that, during fine grinding, in ball mill, 10,20,30 and 40 ballstone proportionings are 5 ~ 15%:50 ~ 60%:15 ~ 25%:10 ~ 20%.
7. architectural pottery raw material low energy consumption ball grinding method according to claim 1, is characterized in that, adopts proportion to be 2.8g/cm during corase grind
3middle aluminium ballstone, during fine grinding adopt proportion be greater than 3.6g/cm
3aluminium oxide ballstone.
8. architectural pottery raw material low energy consumption ball grinding method according to claim 1, it is characterized in that, described architectural pottery raw material needs through primary comminution process before roughly grinding, and enables feed particles by 3 mesh sieves.
9. architectural pottery raw material low energy consumption ball grinding method according to claim 1, is characterized in that, corase grind and the ball mill used by fine grinding are 60 tons of ball mills.
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| CN106391221A (en) * | 2016-11-18 | 2017-02-15 | 福州恒裕陶瓷有限公司 | Ball mill for grinding ceramic glaze |
| CN106955767A (en) * | 2017-04-26 | 2017-07-18 | 揭阳恒成陶瓷科技有限公司 | One kind improves grinding efficiency technique |
| CN107812590A (en) * | 2016-09-14 | 2018-03-20 | 中国地质科学院矿产综合利用研究所 | Selective dissociation strengthening separation method for fine particles difficult to separate |
| CN110152804A (en) * | 2019-06-28 | 2019-08-23 | 胡劲东 | A kind of grinding technics and grinding cylinder structure of horizontal ball mill |
| CN110237904A (en) * | 2019-06-18 | 2019-09-17 | 湖南天欣科技股份有限公司 | A kind of power-economizing method of wet ball mill |
| CN110721776A (en) * | 2019-12-17 | 2020-01-24 | 广东欧文莱陶瓷有限公司 | Secondary ball milling method |
| CN111450944A (en) * | 2020-03-31 | 2020-07-28 | 佛山市恒益环保建材有限公司 | Grinding process of autoclaved aerated concrete slurry |
| CN114870958A (en) * | 2022-06-10 | 2022-08-09 | 广东家美陶瓷有限公司 | Electric control system and control method of ceramic continuous ball mill and ball milling and pulping method |
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| CN110721776A (en) * | 2019-12-17 | 2020-01-24 | 广东欧文莱陶瓷有限公司 | Secondary ball milling method |
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| CN111450944A (en) * | 2020-03-31 | 2020-07-28 | 佛山市恒益环保建材有限公司 | Grinding process of autoclaved aerated concrete slurry |
| CN114870958A (en) * | 2022-06-10 | 2022-08-09 | 广东家美陶瓷有限公司 | Electric control system and control method of ceramic continuous ball mill and ball milling and pulping method |
| CN114870958B (en) * | 2022-06-10 | 2024-05-07 | 广东家美陶瓷有限公司 | Electronic control system, control method and ball milling pulping method of ceramic continuous ball mill |
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