CN1705517A - Dry grinding system and dry grinding method - Google Patents
Dry grinding system and dry grinding method Download PDFInfo
- Publication number
- CN1705517A CN1705517A CN 200380101362 CN200380101362A CN1705517A CN 1705517 A CN1705517 A CN 1705517A CN 200380101362 CN200380101362 CN 200380101362 CN 200380101362 A CN200380101362 A CN 200380101362A CN 1705517 A CN1705517 A CN 1705517A
- Authority
- CN
- China
- Prior art keywords
- fine powder
- average grain
- grain diameter
- grading plant
- obtains
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 51
- 238000009837 dry grinding Methods 0.000 title abstract 4
- 239000000843 powder Substances 0.000 claims abstract description 211
- 239000000463 material Substances 0.000 claims abstract description 37
- 235000012054 meals Nutrition 0.000 claims description 102
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 40
- 239000002245 particle Substances 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000000227 grinding Methods 0.000 abstract description 10
- 239000000047 product Substances 0.000 description 19
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 239000000945 filler Substances 0.000 description 8
- 238000010298 pulverizing process Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 230000004087 circulation Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average particle size and coarse powder having a relatively large average particle size; second classification means for further classifying the coarse powder obtained through the first classification means, into find powder having a relatively small average particle size and coarse powder having a relatively large average particle size; and returning means for returning to the grinding means the coarse powder obtained through the second classification means. The invention enables production of a powder product having a desired average particle size at high efficiency.
Description
Technical field
The present invention relates to a kind of dry type crushing system of producing as grinding agent or filler that is applicable to; And a kind of dry type breaking method that adopts this system.
Background technology
Usually, as potter's clay powder such as the alumina powder or the diamond dust of grinding agent or filler, be to produce by the raw meal that pulverizing has a big average grain diameter (granularity).Breaking method roughly is divided into breaking method and breaking method in batches continuously.Breaking method roughly is divided into open circuit breaking method and closed circuit breaking method again continuously.In these breaking methods, the continuous especially closed circuit breaking method of breaking method is owing to the high efficiency of its pulverizing is widely used.Breaking method comprises a dry type breaking method and a case of wet attrition method.In the time will obtaining a dried product, in most cases use a dry type breaking method that does not need drying steps by breaking method.
Exemplary closed circuit dry type crushing system had description 1265 pages of on October 25th, 1978 " Chemical Engineering handbook " that Maruzen publishes.Next with reference to Fig. 4 crushing system is schematically described.
As shown in Figure 4, traditional closed circuit crushing system comprises: be used for dry type and pulverize the reducing mechanism 120 of wanting material crushed 110; Be used for to be classified as fine powder 131 with less average grain diameter and grading plant 130 from the crushed material 121 that reducing mechanism 120 obtains with meal 132 of big average grain diameter; And be used to make the meal 132 that obtains from grading plant 130 to turn back to the return mechanism 140 of reducing mechanism 120.
In this system, the fine powder 131 that obtains from grading plant 130 is collected, and meal 132 is repeated to pulverize, till obtaining predetermined average grain diameter.The fine powder applied range of above-mentioned collection does not need further processing, perhaps further classification as required.
Yet aforesaid conventional dry crushing system can not obtain to have the pulverulent product of target average grain diameter sometimes effectively.
The average grain diameter that is suitable for use as the alumina powder of grinding agent etc. is 45-90 μ m.Has the further classification of alumina powder goods quilt of this average grain diameter, simultaneous oxidation aluminium fine powder is under the situation about obtaining of the grading plant by the aforementioned conventional system, when the medium size crushing machine was used as reducing mechanism, fine powder contained the particle of a large amount of particle diameters greater than target grain size; That is to say that particle diameter falls into the granule number minimizing of target grain size scope, so productivity ratio is lower.
Is a kind of possible solution for the particle that the raising particle diameter falls into the target grain size scope in the quantity of fine powder as reducing mechanism with pulverizer.Yet in this case, fine powder contains a large amount of meticulous particles, and the classification efficiency of fine powder reduces like this, causes productivity ratio to reduce.
Summary of the invention
Consider aforesaid problem, the invention provides a kind of dry type crushing system and a kind of dry type breaking method, they can have the pulverulent product of target average grain diameter with high efficiency production.
For solving foregoing problems, the inventor has carried out broad research, and finishes the present invention based on the conclusion that obtains.
The invention provides a kind of dry type crushing system and a kind of dry type breaking method, as described below.
(1) a kind of dry type crushing system comprises:
Be used for dry type and pulverize the reducing mechanism of wanting material crushed;
Be used for to be classified as fine powder from the crushed material that described reducing mechanism obtains and to have first grading plant of the meal of average grain diameter greatly with less average grain diameter;
Be used for further to be classified as fine powder from the meal that described first grading plant obtains and to have second grading plant of the meal of average grain diameter greatly with less average grain diameter; And
Be used for to turn back to the return mechanism of described reducing mechanism from the meal that described second grading plant obtains.
(2) as (1) described dry type crushing system, also comprise:
Be used for further to be classified as fine powder from the fine powder that described second grading plant obtains and to have the 3rd grading plant of the meal of average grain diameter greatly with less average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the meal that described the 3rd grading plant obtains.
(3) as (1) described dry type crushing system, wherein said reducing mechanism is a ball mill.
(4) as (1) described dry type crushing system, wherein said first grading plant is an air classifier.
(5) as (1) described dry type crushing system, wherein said second grading plant is a sieve.
(6) as (2) described dry type crushing system, wherein said the 3rd grading plant is a sieve.
(7) as (5) described dry type crushing system, wherein said second grading plant comprises:
The fine powder that is used for obtaining further is classified as the superfine powder with less average grain diameter and has the grading plant of the fine powder of big average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the superfine powder that described grading plant obtains.
(8) as (6) described dry type crushing system, wherein said the 3rd grading plant comprises:
The fine powder that is used for obtaining further is classified as the superfine powder with less average grain diameter and has the grading plant of the fine powder of big average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the superfine powder that described grading plant obtains.
(9) as (1) described dry type crushing system, also comprise the gathering-device that is used to collect from the fine powder of described first grading plant acquisition, with the gathering-device that is used to collect from the fine powder of described second grading plant acquisition, wherein, the described gathering-device that is used to collect the fine powder that obtains from described second grading plant comprises deironing apparatus.
(10) as (2) described dry type crushing system, also comprise the gathering-device that is used to collect from the fine powder of described first grading plant acquisition, with the gathering-device that is used to collect the fine powder that obtains from described the 3rd grading plant, the wherein said gathering-device that is used to collect the fine powder that obtains from described the 3rd grading plant comprises deironing apparatus.
(11) as (9) or (10) described dry type crushing system, wherein the average grain diameter of the fine powder that obtains from described first grading plant is 5-25 μ m.
(12) as (9) described dry type crushing system, wherein the average grain diameter of the fine powder that obtains from described second grading plant is 45-90 μ m, and volume density is 1.7-2.3.
(13) as (10) described dry type crushing system, wherein the average grain diameter of the fine powder that obtains from described the 3rd grading plant is 45-90 μ m, and volume density is 1.7-2.3.
(14) as (1) described dry type crushing system, the wherein said material crushed of wanting is an aluminium oxide.
(15) a kind of dry type breaking method comprises:
Dry type is pulverized the pulverising step of wanting material crushed;
To be classified as fine powder from the crushed material that described pulverising step obtains and have first classification step of the meal of big average grain diameter with less average grain diameter;
To further be classified as fine powder from the meal that described first classification step obtains and have second classification step of the meal of big average grain diameter with less average grain diameter; With
To turn back to the step of returning of described pulverising step from the meal that described second classification step obtains.
(16) as (15) described dry type breaking method, wherein said second classification step comprises:
The fine powder that obtains further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; With
To turn back to the step of returning of described pulverising step from the superfine powder that described classification step obtains.
(17) as (15) or (16) described dry type breaking method, also comprise the collection step of collection from the fine powder of described first classification step acquisition, with the collection step of collection from the fine powder of described second classification step acquisition, wherein said collection comprises the deironing step from the collection step of the fine powder that described second classification step obtains.
(18) as (15) described dry type breaking method, also comprise:
To be classified as fine powder from the fine powder that described second classification step obtains and have the 3rd classification step of the meal of big average grain diameter with less average grain diameter; With
To turn back to the step of returning of described pulverising step from the meal that described the 3rd classification step obtains.
(19) as (18) described dry type breaking method, wherein said the 3rd classification step comprises:
The fine powder that obtains further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; With
To turn back to the step of returning of described pulverising step from the superfine powder that described classification step obtains.
(20) as (18) or (19) described dry type breaking method, also comprise the collection step of collection from the fine powder of described first classification step acquisition, with the collection step of collection from the fine powder of described the 3rd classification step acquisition, wherein said collection comprises the deironing step from the collection step of the fine powder that described the 3rd classification step obtains.
In sum, dry type crushing system of the present invention is characterised in that this system comprises: be used for dry type and pulverize the reducing mechanism of wanting material crushed; Be used for to be classified as from the crushed material that reducing mechanism obtains fine powder and have first grading plant of the meal of average grain diameter greatly with less average grain diameter; Be used for further to be classified as fine powder from the meal that first grading plant obtains and to have second grading plant of the meal of average grain diameter greatly with less average grain diameter, if desired, second grading plant comprises the grading plant that is used for further being classified as from the fine powder that second grading plant obtains superfine powder with less average grain diameter and the fine powder with big average grain diameter; And be used for the return mechanism that the superfine powder that will obtain from second grading plant and meal turn back to reducing mechanism.
Dry type crushing system of the present invention preferably also comprises: be used to collect the gathering-device from the fine powder of first classification step acquisition, with the gathering-device that is used to collect the fine powder that obtains from second grading plant, the gathering-device that wherein is used to collect the fine powder that obtains from second grading plant comprises deironing apparatus.
Dry type crushing system of the present invention also comprises: the fine powder that is used for obtaining from second grading plant further is classified as the fine powder with less average grain diameter and has the 3rd grading plant of the meal of big average grain diameter, if desired, the 3rd grading plant comprises the grading plant that is used for further being classified as from the fine powder that the 3rd grading plant obtains fine powder with less average grain diameter and the fine powder with big average grain diameter; And be used for the return mechanism that the superfine powder that will obtain from the 3rd grading plant and meal turn back to reducing mechanism.
Have at the dry type crushing system under the situation of aforementioned structure, this system preferably also comprises: be used to collect the gathering-device from the fine powder of first grading plant acquisition, with the gathering-device that is used to collect the fine powder that obtains from the 3rd grading plant, the gathering-device that wherein is used to collect the fine powder that obtains from the 3rd grading plant comprises deironing apparatus.
In dry type crushing system of the present invention, preferably, reducing mechanism is a ball mill, and first grading plant is an air classifier, and the second and the 3rd grading plant is respectively a sieve.
The preferred average grain diameter of fine powder that obtains from first grading plant is 5-25 μ m.The preferred average grain diameter of fine powder that obtains from the second or the 3rd grading plant is 45-90 μ m, and volume density is 1.7-2.3.Want material crushed preferably ceramic material such as aluminium oxide or diamond dust, especially preferred aluminium oxide.
Dry type breaking method of the present invention is characterised in that this method comprises: dry type is pulverized the pulverising step of wanting material crushed; To be classified as fine powder from the crushed material that pulverising step obtains and have first classification step of the meal of big average grain diameter with less average grain diameter; To be classified as fine powder from the meal that first classification step obtains and have second classification step of the meal of big average grain diameter with less average grain diameter, if desired, second classification step comprises that the fine powder that will obtain from second classification step further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; And the step of returning that will turn back to pulverising step from the superfine powder and the meal of second classification step acquisition.
Dry type breaking method of the present invention preferably also comprises: collect from the collection step of the fine powder of first classification step acquisition; With the collection step of collecting the fine powder that obtains from second classification step, the collection step of wherein collecting the fine powder that obtains from second classification step comprises the deironing step.
Replace and collect the collection step of collecting the fine powder of step acquisition from second, described dry type breaking method comprises that also the fine powder that will obtain from second classification step further is classified as the fine powder with less average grain diameter and has the 3rd classification step of the meal of big average grain diameter, if desired, the 3rd classification step comprises that the fine powder that will obtain from the 3rd classification step further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; And the step of returning that will turn back to pulverising step from the superfine powder and the meal of the 3rd classification step acquisition.
In this case, described dry type breaking method preferably includes: collect from the collection step of the fine powder of first classification step acquisition; With the collection step of collecting the fine powder that obtains from the 3rd classification step, the collection step of wherein collecting the fine powder that obtains from the 3rd classification step comprises the deironing step.
Description of drawings
Fig. 1 illustrates according to the dry type crushing system of the first embodiment of the present invention and dry type breaking method;
Fig. 2 is the schematic diagram of a system of volume density measurement use, and this system is described herein;
Fig. 3 illustrates according to the dry type crushing system of second embodiment of the invention and dry type breaking method; And
Fig. 4 is traditional dry type crushing system and dry type breaking method.
The specific embodiment
First embodiment
Next will describe according to the dry type crushing system of first embodiment of the invention and the dry type breaking method of this dry type crushing system of employing with reference to Fig. 1.
As described in Figure 1, the dry type crushing system of present embodiment comprises: be used for dry type and pulverize the reducing mechanism 20 of wanting material crushed 10; Be used for to be classified as fine powder 31 with less average grain diameter and first grading plant 30 from the crushed material 21 that reducing mechanism 20 obtains with meal 32 of big average grain diameter; Be used for further to be classified as fine powder 51 with less average grain diameter and second grading plant 50 from the meal 32 that first grading plant 30 obtains with meal 52 of big average grain diameter, if desired, second grading plant 50 comprises and is used for the grading plant (not shown) that will further be classified as the superfine powder with less average grain diameter from the fine powder 51 that second grading plant 50 obtains and have the fine powder of big average grain diameter; And be used for the return mechanism 70 that the superfine powder (not shown) that will obtain from second grading plant 50 and meal 52 turn back to reducing mechanism 20.
The dry type crushing system of present embodiment also comprises and is used for the fine powder 31 that will obtain from the first grading plant 30 fine powder goods gathering-device 40 as " fine powder goods " collection; With the meal goods gathering-device 60 that is used for the fine powder 51 that obtains from second grading plant 50 is collected as " meal goods ".Preferably, meal goods gathering-device 60 comprises and is used for deironing apparatus (not shown) that ferrous components is removed from fine powder 51.
The term of Shi Yonging " fine powder goods " and " meal goods " refer to a kind of pulverulent product and a kind of pulverulent product with big average grain diameter with less average grain diameter respectively herein, and this pulverulent product is by using system's production of present embodiment.
The dry type breaking method of present embodiment uses aforesaid system, and this method comprises that dry type pulverizes the pulverising step want material crushed 10; To be classified as fine powder 31 with less average grain diameter and first classification step from the crushed material 21 that pulverising step obtains with meal 32 of big average grain diameter; To further be classified as fine powder 51 with less average grain diameter and second classification step from the meal 32 that first classification step obtains with meal 52 of big average grain diameter, if desired, second classification step comprises that the fine powder 51 that will obtain from second classification step further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; And the step of returning that will turn back to pulverising step from the superfine powder and the meal 52 of second classification step acquisition.This dry type breaking method preferably also comprises the collection step of collection from the fine powder 31 of first classification step acquisition, with the collection step of collecting the fine powder 51 that obtains from second classification step, the collection step of wherein collecting the fine powder 51 that obtains from second classification step comprises the deironing step.
In the present embodiment, to wanting material crushed 10 to be not particularly limited.The example of material comprises ceramic material such as aluminium oxide and diamond dust.Preferred pulverous material.
Alumina powder uses in multiple product.For example, when alumina powder was incorporated in the resin combination as filler, powder can be composed son this constituent high-wearing feature and high transparent.The special case that is suitable for making the raw material of alumina powder comprises fused alumina.
The physical characteristic of the meal goods that obtain for the fine powder goods that obtain from first grading plant 30 with from second grading plant 50 is not particularly limited.The physical characteristic of these goods is according to for example it makes and is used for suitably decision.
The average grain diameter of the fine powder goods that obtain from first grading plant 30 preferably drops in the scope of 5-25 μ m preferred 10-20 μ m.
When the average grain diameter of fine powder goods was lower than 5 μ m, the ultra-fine grain quantity in the meal 32 increased, and the meal 32 quilts classification efficiency of second classification step of classification once more reduce irrelevantly.On the contrary, when the average grain diameter of fine powder goods surpassed 25 μ m, particle diameter fell into the quantity minimizing of the particle of target grain size scope in the fine powder goods, and the meal goods that collect reduce irrelevantly.
At this moment, the average grain diameter of the meal that obtains from second grading plant 50 preferably drops in the scope of 45-90 μ m, more preferably at 55-75 μ m.The volume density of meal goods preferably drops in the scope of 1.7-2.3, more preferably drops on 1.8-2.1.
Average grain diameter at the meal goods is lower than under the situation of 45 μ m, and when goods are used as filler when being incorporated in the resin combination, the dispersiveness of these goods in constituent destroyed, and causes the characteristic degradation (as the inhomogeneities of constituent) of resin combination.On the contrary, surpass under the situation of 90 μ m in the average grain diameter of meal goods, be incorporated in the resin combination when goods are used as filler, this constituent may comprise the particle of size greater than the thickness of gained resin bed, and the characteristic of resin bed may worsen like this; For example, the surface smoothing of resin bed may worsen.Be lower than in the volume density of meal goods under 1.7 the situation, when goods are used as filler when being incorporated in the resin combination, the filling capacity of pulverulent product is poor.Volume density at the meal goods surpasses under 2.3 the situation, the time of staying of material crushed in reducing mechanism 20 to prolong, and causes excessive pulverizing and production efficiency low.
" average grain diameter " of Shi Yonging measured by the laser diffraction measurement method herein, and this method has detailed description in " JIS R6002:1998-3, the test method type is the screening test method a) ", and " volume density " passes through the method mensuration that " JIS R 6126-1970 " describes in detail.Specifically, " average grain diameter " and " volume density " adopts following method to measure.
1. the mensuration of average grain diameter (JIS R 6002, screening test method)
1.1 device and standard specimen
1.1.1 experimental rig: the Ro-Tap experimental rig (knock rate: 156 electric shocks/minute, rotating speed: 290rpm)
1.1.2 sieve: the service test sieve, the internal diameter of each testing sieve is 200mm, interior is 45mm deeply.
1.1.3 standard specimen: the standard specimen of proofreading and correct The selection result is a brown aluminium grinding agent, and the standard particle diameter that this grinding agent is classified to the different-grain diameter grade distributes, and provides a reference value.
1.2 step
Screening test is undertaken by following step.
A) claim a sample (100g).
B) specification is that JIS Z 8801 is (as " JIS Z 8801 testing sieves ", each sieve diameter 200mm, height 45mm, be that Iida Seisakusho company produces) the testing sieve of different mesh sizes, be placed in the experimental rig, make sequence stack that testing sieve increases gradually according to mesh from top to bottom on an admittance dish.
C) sample places the testing sieve of topmost, shakes this testing sieve 5 minutes by experimental rig.
D) measure the quality of still staying a part of sample on each sieve or the admittance dish, be accurate to 0.1g.In the gross mass of sample is under 99.0g or the lower situation, tests again.
1.3 calculate
Calculate the mass percent of the screened part of said sample.
1.4 using standard specimen proofreaies and correct
According to standard specimen the numerical value that so calculates is proofreaied and correct, and the value that will so proofread and correct is as measured value.
2. the mensuration of volume density (JIS R 6126):
2.1 collect sample (about 120mL) and dry.
2.2 test method
2.2.1 device: adopt experimental rig shown in Figure 2, comprise that leaks 142, one cylinders 143 of 141, one retainers, and a supporting member 144, the size of each parts is (unit: mm) as shown in Figure 2.The material of each parts is as described below.
Leak 141: stainless steel
Retainer 142: brass
Cylinder 143: brass (forming) by a seamless brass tube and a brass bottom
(size and dimension of above-mentioned parts is not subjected to the qualification of Fig. 2, can be any suitable dimensions.)
2.2.2 step
(1) volume of cylinder 143 uses distilled water to measure, and is accurate to 0.1mL.
(2) outlet of funnel 141 uses retainer 142 to seal, and sample (about 120mL) places in the funnel, and then cylinder 143 directly places funnel 141 belows.
(3) retainer 142 is removed from funnel, caused whole samples to fall into cylinder 143 like this.Any sample part that is positioned at top, cylinder 143 edges is collected by a metallic plate, and metallic plate contacts with the upper end of cylinder 143 simultaneously, makes that the angle between metallic plate and cylinder 143 upper ends is 30-45 °.Subsequently, the sample in the cylinder is accurate to 0.1g by accurately weighing.
(4) sample repeats to comprise the circulation 3 times of above-mentioned steps (2) and (3).When the difference of the minimum and maximum weight of the sample of measuring in 3 circulations is 1.0g or when higher, sample carries out this circulation once more, the difference between three minimum and maximum weight of sample is lower than 1.0g, and this moment, three weight were used when volume density is calculated.
2.2.3 calculate
Volume density is calculated by following formula.
Volume density=(W1+W2+W3)/3} ÷ V (g/mL)
W1, W2, W3: that measures in each circulation is included in sample weight (g) in the cylinder
V: cylinder volume (mL)
Reducing mechanism 20 is not particularly limited, and chi will this device can be pulverized and wants material crushed 10 to get final product.Reducing mechanism 20 can suitably be selected according to the physical characteristic of the pulverulent product of for example needs.
For example, when the production average grain diameter is that the fine powder goods of 5-25 μ m and average grain diameter are 45-90 μ m and volume density when being the meal goods of 1.7-2.3, preferably, adopt the disintegrating apparatus that is commonly referred to " pulverizer " as reducing mechanism.More particularly, preferred spheres grinding machine.When ball mill is used as reducing mechanism, but High-efficient Production has the fine powder goods and the meal goods of aforementioned physical characteristic.From the angle of equipment cost, ball mill is comparatively favourable, because it is the pulverizer that the charge is small.
This device first grading plant 30 is not particularly limited, as long as can carry out classification to the crushed material 21 that obtains from reducing mechanism 20.The example of grading plant comprises an air classifier and a sieve.Preferred air classifier is because it can carry out high-effective classifying to fine powder 31; That is to say the fine powder goods are had high collection efficiency.
This device is not particularly limited for second grading plant 50, as long as can carry out classification to the meal 32 that obtains from first grading plant 30.The example of grading plant comprises an air classifier and a sieve.Preferred sieve is because it can carry out high-effective classifying to fine powder 51; That is to say the meal goods are had high collection efficiency.
The example of removing the deironing apparatus of ferrous components from fine powder 51 (meal goods) comprises a magnetic separator.When being provided with this deironing apparatus, can from this powder, be removed at the ferrous components that enters powder as pulverising step or classification step in the phase, can produce like this and contain the high-quality meal goods of seldom measuring impurity.
If desired, can in the fines collection device 40 of collecting fine powder 31 (fine powder goods), be provided with above similar deironing apparatus.
In the dry type breaking method of the dry type crushing system of present embodiment and this system of employing, the fine powder 31 that obtains from first grading plant 30 is collected as " fine powder goods ", meal 32 further is classified as fine powder 51 and meal 52 by second grading plant 50, and the fine powder 51 that obtains is collected as " meal goods ".
In sum, in the present embodiment, two kinds of pulverulent products with different average grain diameters are collected with two kinds of different steps.So collect " the fine powder goods " that obtain and can be used for different purposes with " meal goods ".Each pulverulent product of so collecting contains the particle that a large amount of particle diameters fall into the target grain size scope; That is to say, but the pulverulent product High-efficient Production.Because after meal 32 separates from the fine powder 31 that contains ultra-fine grain by classification, meal 32 further passes through second grading plant 50 by classification, and ultra-fine grain reduces the negative effect of the classification of meal 32.Therefore, the situation of the classification efficiency reduction in second classification step can not take place to cause owing to the appearance of ultra-fine grain.
Like this, but system's High-efficient Production of present embodiment have the target average grain diameter pulverulent product (as, average grain diameter is the fine powder of 5-25 μ m, average grain diameter is that 45-90 μ m and volume density are the meal of 1.7-2.3).
System's use disintegrating apparatus of present embodiment (as, ball mill) as reducing mechanism 20.Therefore, this system's production volume density expeditiously accounts for the meal goods of its true specific gravity 42-58%; That is to say that (as volume density is the meal goods of the aluminium oxide meal goods (true specific gravity of these goods: 3.98)) of 1.7-2.3 to have high volume density.
Has the alumina powder that is suitable for use as the physical characteristic of grinding agent or filler when using the system of present embodiment to carry out dry type when pulverizing as the aluminium oxide (as fused alumina) of raw material, can producing efficiently.Especially, use compatible good in resin of alumina powder goods that the system of present embodiment produces.Therefore, when the meal goods add in the resin combination as filler, have high fill-ratio, and the resin combination that obtains has high transparent.
Second embodiment
Next illustrate according to the dry type crushing system of second embodiment of the invention and the dry type breaking method of this system of employing with reference to Fig. 3.Each parts corresponding to first embodiment use same reference numerals, and the place of repetition repeats no more.
The dry type crushing system of present embodiment and the difference of first embodiment are, this system comprises the 3rd grading plant 80 that is used for the fine powder 51 further classifications that will obtain from second grading plant 50, fine powder 51 is not collected in this embodiment, meal 82, the three grading plants 80 of average grain diameter comprise the grading plant (not shown) that will further be classified as the superfine powder with less average grain diameter from the fine powder 81 that the 3rd grading plant 80 obtains and have the fine powder of big average grain diameter if desired but be classified to the fine powder 81 with less average grain diameter and have greatly; And be used for the return mechanism 100 that the superfine powder (not shown) that will obtain from the 3rd grading plant 80 and meal turn back to reducing mechanism 20.
Replace and to be used for the meal goods gathering-device that will collect as the meal goods from the fine powder 51 that second grading plant 50 obtains, the system of present embodiment comprises and is used for the meal goods gathering-device 90 that will collect as the meal goods from the fine powder 81 that the 3rd grading plant 80 obtains.In first embodiment, meal goods gathering-device 90 preferably includes and is used for from the deironing apparatus (not shown) of fine powder 81 with the ferrous components removing.
This device the 3rd grading plant 80 is not particularly limited, as long as can carry out classification to the fine powder 51 that obtains from second grading plant 50.The example of the 3rd grading plant comprises an air classifier and a sieve.Preferred sieve is because it is to the classification efficiency height of fine powder 81; That is to say, to the collection efficiency height of meal goods.
The dry type breaking method of present embodiment and the difference part of first embodiment are, this method comprises: one will further be classified as fine powder 81 with less average grain diameter and the 3rd classification step with meal 82 of big average grain diameter from the fine powder 51 that second classification step obtains, and the 3rd classification step comprises that if desired one will further be classified as the superfine powder with less average grain diameter and have the classification step of the fine powder of big average grain diameter from the fine powder 81 that the 3rd classification step obtains; With a step of returning that will turn back to pulverising step from the superfine powder and the meal 82 of the 3rd classification step acquisition.
In the present embodiment, the fine powder 51 that obtains from second grading plant 50 further is classified as fine powder 81 and meal 82, and fine powder 81 is collected as the meal goods.Therefore, present embodiment also has following effect except the effect that can obtain first embodiment: can produce and have the meal goods that more stable particle diameter distributes, and the quantity that falls into the particle of target grain size scope in the meal goods further increases.
Embodiment
Further describe the present invention by way of example.
(example 1)
It is the dry type crushing system enforcement that is similar to first embodiment by use that closed circuit dry type is pulverized.
Coarse crushing fused alumina (particle diameter: 2mm or littler) is as wanting material crushed.An internal volume is 0.5m
3Vibrator (crushing medium: alumina balls, filling rate: 70%) as reducing mechanism.A forced vortex air classifier (model: MS-4, Hosokawa Micron company produces) and a circular impact screen are used separately as first grading plant and second grading plant.The part that contacts with powder of dry type crushing system (as, a unit or an air conduit) scribble a lining (forming) by aluminium oxide and rubber, this part will be born considerable wear.This lining can reduce the metal impurities amount in the pulverulent product.
At first, material crushed to pass vibrator with the speed of 800kg/h.The goods of pulverizing out like this are by first grading plant (rotating speed: 450rpm, volume of air: 120m
3) carry out classification, the output average grain diameter is the meal goods of 16 μ m like this.Subsequently, coarse granule is by having second grading plant removal that mesh size is the sieve of 125 μ m, and obtaining average grain diameter is that 61 μ m, volume density are 1.87 meal goods.The productivity ratio of meal goods is 72%.Like this, in this example, the pulverulent product that can high efficiency production has the target average grain diameter.
(example 2)
It is that dry type crushing system by use is similar to second embodiment is implemented that closed circuit dry type is pulverized.
Coarse crushing fused alumina (particle diameter: 2mm or lower) is as wanting material crushed.Internal volume is 1.0m
3Pneumatic rotary type ball mill (crushing medium: alumina balls, filling rate: 45%) as reducing mechanism.A forced vortex air classifier (model: MS-1, Hosokawa Micron company produces) is as first grading plant.(in-plane) sieve is as the second and the 3rd grading plant in the face.
At first, material crushed to pass the rotary type ball mill with the speed of 250kg/h.The goods of pulverizing out like this by first grading plant (rotating speed: 1,100rpm, volume of air: 15m
3) carry out classification, the output average grain diameter is the fine powder goods of 11 μ m like this.Subsequently, coarse granule is by having second grading plant removal that mesh size is the sieve of 250 μ m.In addition, coarse granule is by having the 3rd grading plant removal that mesh size is the sieve of 106 μ m, fine grained is by having the 3rd grading plant removal that mesh size is the sieve of 45 μ m, realized size adjusting thus, and the output average grain diameter is that 58 μ m, volume density are 1.93 meal goods.The productivity ratio of the meal goods by the 3rd grading plant production is 69%.Like this, in this example, the pulverulent product that can high efficiency production has the target average grain diameter.
Meal goods by the 3rd grading plant production are handled by using the cydariform magnetic separator to carry out deironing, make the iron content in the goods be reduced to 10ppm or still less from 240ppm thus.
(example 3)
It is that dry type crushing system by use is similar to first embodiment is implemented that closed circuit dry type is pulverized.
Coarse crushing electric smelting mullite (particle diameter: 1mm or lower) is as wanting material crushed.Internal volume 1.0m
3Pneumatic rotary type ball mill as reducing mechanism.A forced vortex air classifier (model: MS-1, Hosokawa Micron company produces) and a circular impact screen are used separately as first grading plant and second grading plant.
At first, material crushed to pass the rotary type ball mill with the speed of 250kg/h.The goods of pulverizing out like this are by first grading plant (rotating speed: 750rpm, volume of air: 15m
3) carry out classification, the output average grain diameter is the fine powder goods of 20 μ m thus.Subsequently, coarse granule is by having second grading plant removal that mesh size is the sieve of 150 μ m, fine grained is by having second grading plant removal that mesh size is the sieve of 53 μ m, therefore realized size adjusting, and the output average grain diameter is that 74 μ μ m, volume density are 1.83 meal goods.The productivity ratio of the meal goods by the second grading plant production is 74%.Like this, in this example, the pulverulent product that can high efficiency production has the target average grain diameter.
(comparative example)
It is by using dry type crushing system shown in Figure 3 to implement that closed circuit dry type is pulverized.
Coarse crushing fused alumina (particle diameter: 2mm or lower) is as wanting material crushed.Internal volume is 0.5m
3Vibrator (crushing medium: alumina balls, filling rate: 70%) as reducing mechanism.A circular impact screen is as grading plant.For making the fine powder that obtains form goods, adopt a forced vortex air classifier (model: MS-1, Hosokawa Micron company produces) as the line bonus stage arrangement.
At first, material crushed to pass vibrator with the speed of 800kg/h.Subsequently, coarse granule is by having the grading plant removal that mesh size is the sieve of 125 μ m, and the output average grain diameter is the fine powder of 45 μ m thus.In addition, fine grained is by forced vortex air classifier (rotating speed: 900rpm, volume of air: 15m
3) remove, the output average grain diameter is that 63 μ m, volume density are 1.95 pulverulent product thus.The productivity ratio of goods is 48%.
Industrial usability
The invention provides a kind ofly in formula crushing system and a kind of dry type breaking method, they can be with height Efficient is produced the pulverulent product with target average grain diameter.
Claims (20)
1. dry type crushing system comprises:
Be used for dry type and pulverize the reducing mechanism of wanting material crushed;
Be used for to be classified as fine powder from the crushed material that described reducing mechanism obtains and to have first grading plant of the meal of average grain diameter greatly with less average grain diameter;
Be used for further to be classified as fine powder from the meal that described first grading plant obtains and to have second grading plant of the meal of average grain diameter greatly with less average grain diameter; And
Be used for to turn back to the return mechanism of described reducing mechanism from the meal that described second grading plant obtains.
2. dry type crushing system according to claim 1 is characterized in that, also comprises:
Be used for further to be classified as fine powder from the fine powder that described second grading plant obtains and to have the 3rd grading plant of the meal of average grain diameter greatly with less average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the meal that described the 3rd grading plant obtains.
3. according to the dry type crushing system shown in the claim 1, it is characterized in that described reducing mechanism is a ball mill.
4. dry type crushing system according to claim 1 is characterized in that, described first grading plant is an air classifier.
5. dry type crushing system according to claim 1 is characterized in that, described second grading plant is a sieve.
6. dry type crushing system according to claim 2 is characterized in that, described the 3rd grading plant is a sieve.
7. dry type crushing system according to claim 5 is characterized in that, described second grading plant comprises:
The fine powder that is used for obtaining further is classified as the superfine powder with less average grain diameter and has the grading plant of the fine powder of big average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the superfine powder that described grading plant obtains.
8. dry type crushing system according to claim 6 is characterized in that, described the 3rd grading plant comprises:
The fine powder that is used for obtaining further is classified as the superfine powder with less average grain diameter and has the grading plant of the fine powder of big average grain diameter; With
Be used for to turn back to the return mechanism of described reducing mechanism from the superfine powder that described grading plant obtains.
9. dry type crushing system according to claim 1, it is characterized in that, also comprise the gathering-device that is used to collect from the fine powder of described first grading plant acquisition, with the gathering-device that is used to collect from the fine powder of described second grading plant acquisition, wherein, the described gathering-device that is used to collect the fine powder that obtains from described second grading plant comprises deironing apparatus.
10. dry type crushing system according to claim 2, it is characterized in that, also comprise the gathering-device that is used to collect from the fine powder of described first grading plant acquisition, with the gathering-device that is used to collect the fine powder that obtains from described the 3rd grading plant, the wherein said gathering-device that is used to collect the fine powder that obtains from described the 3rd grading plant comprises deironing apparatus.
11., it is characterized in that the average grain diameter of the fine powder that obtains from described first grading plant is 5-25 μ m according to claim 9 or 10 described dry type crushing systems.
12. dry type crushing system according to claim 9 is characterized in that, the average grain diameter of the fine powder that obtains from described second grading plant is 45-90 μ m, and volume density is 1.7-2.3.
13. dry type crushing system according to claim 10 is characterized in that, the average grain diameter of the fine powder that obtains from described the 3rd grading plant is 45-90 μ m, and volume density is 1.7-2.3.
14 dry type crushing systems according to claim 1 is characterized in that, the described material crushed of wanting is an aluminium oxide.
15 1 kinds of dry type breaking methods comprise:
Dry type is pulverized the pulverising step of wanting material crushed;
To be classified as fine powder from the crushed material that described pulverising step obtains and have first classification step of the meal of big average grain diameter with less average grain diameter;
To further be classified as fine powder from the meal that described first classification step obtains and have second classification step of the meal of big average grain diameter with less average grain diameter; With
To turn back to the step of returning of described pulverising step from the meal that described second classification step obtains.
16. dry type breaking method according to claim 15 is characterized in that, described second classification step comprises:
The fine powder that obtains further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; With
To turn back to the step of returning of described pulverising step from the superfine powder that described classification step obtains.
17. according to claim 15 or 16 described dry type breaking methods, it is characterized in that, also comprise the collection step of collection from the fine powder of described first classification step acquisition, with the collection step of collection from the fine powder of described second classification step acquisition, wherein said collection comprises the deironing step from the collection step of the fine powder that described second classification step obtains.
18. dry type breaking method according to claim 15 is characterized in that, also comprises:
To be classified as fine powder from the fine powder that described second classification step obtains and have the 3rd classification step of the meal of big average grain diameter with less average grain diameter; With
To turn back to the step of returning of described pulverising step from the meal that described the 3rd classification step obtains.
19. dry type breaking method according to claim 18 is characterized in that, described the 3rd classification step comprises:
The fine powder that obtains further is classified as the superfine powder with less average grain diameter and has the classification step of the fine powder of big average grain diameter; With
To turn back to the step of returning of described pulverising step from the superfine powder that described classification step obtains.
20. according to claim 18 or 19 described dry type breaking methods, it is characterized in that, also comprise the collection step of collection from the fine powder of described first classification step acquisition, with the collection step of collection from the fine powder of described the 3rd classification step acquisition, wherein said collection comprises the deironing step from the collection step of the fine powder that described the 3rd classification step obtains.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP304390/2002 | 2002-10-18 | ||
| JP2002304390 | 2002-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1705517A true CN1705517A (en) | 2005-12-07 |
| CN1320963C CN1320963C (en) | 2007-06-13 |
Family
ID=32105107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200380101362XA Expired - Fee Related CN1320963C (en) | 2002-10-18 | 2003-10-16 | Dry grinding system and dry grinding method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4485950B2 (en) |
| CN (1) | CN1320963C (en) |
| AU (1) | AU2003301396A1 (en) |
| WO (1) | WO2004035216A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266853A (en) * | 2011-08-05 | 2011-12-07 | 葛洲坝集团第五工程有限公司 | Waste rock flour recycling method for dry sandstone producing system |
| CN103120984A (en) * | 2011-11-19 | 2013-05-29 | 赵中林 | Method of iron concentrate powder magnetic separation in dry mode |
| CN103331194A (en) * | 2007-02-07 | 2013-10-02 | 尤尼明公司 | Method of processing nepheline syenite powder to produce an ultra-fine grain size product |
| CN104084288A (en) * | 2014-06-09 | 2014-10-08 | 灌阳县陈工选矿机械制造有限公司 | An ore sorting device |
| CN104226454A (en) * | 2013-06-07 | 2014-12-24 | 韩国地质资源研究院 | Layered clay mineral high-grade screening method based on wet grinding and classification |
| CN105126983A (en) * | 2015-08-28 | 2015-12-09 | 长沙深湘通用机器有限公司 | Process for crushing and sorting fine particles |
| CN105170465A (en) * | 2015-08-28 | 2015-12-23 | 长沙深湘通用机器有限公司 | Gravity concentration method |
| CN106269086A (en) * | 2016-09-20 | 2017-01-04 | 派勒（天津）纳米技术有限公司 | A kind of dry type milling system on-line grinding technique |
| CN106391260A (en) * | 2016-08-31 | 2017-02-15 | 安徽纽亚达科技有限责任公司 | Micaceous iron oxide dry-method processing method |
| CN106391211A (en) * | 2016-09-20 | 2017-02-15 | 派勒（天津）纳米技术有限公司 | Intelligent dry type ball milling system |
| CN107233967A (en) * | 2017-07-11 | 2017-10-10 | 桂林矿山机械有限公司 | Multistage powder flour mill |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4932148B2 (en) * | 2004-10-18 | 2012-05-16 | 株式会社フジミインコーポレーテッド | Method for producing aluminum oxide powder |
| JP2006231125A (en) * | 2005-02-22 | 2006-09-07 | Chubu Electric Power Co Inc | Manufacturing system of shell powder |
| WO2009008965A1 (en) * | 2007-07-09 | 2009-01-15 | Unimin Corporation | Nepheline syenite powder with controlled particle size and novel method of making same |
| CN103846132A (en) * | 2013-05-17 | 2014-06-11 | 洛阳宇航重工机械有限公司 | Ball-milling classification production equipment for high-purity quartz powder |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2666097B2 (en) * | 1991-08-02 | 1997-10-22 | 宇部興産株式会社 | Slag crushing equipment |
| JP3316872B2 (en) * | 1992-05-29 | 2002-08-19 | 住友化学工業株式会社 | Dry grinding of alumina |
| JP3176757B2 (en) * | 1993-04-28 | 2001-06-18 | キヤノン株式会社 | Method for producing toner for developing electrostatic images |
| JP3210774B2 (en) * | 1993-04-28 | 2001-09-17 | キヤノン株式会社 | Manufacturing method of toner |
| JPH0792735A (en) * | 1993-09-24 | 1995-04-07 | Canon Inc | Manufacture of toner and device for manufacturing the same |
| JP3486524B2 (en) * | 1997-06-24 | 2004-01-13 | キヤノン株式会社 | Method and system for manufacturing toner |
| JP3579343B2 (en) * | 2000-10-24 | 2004-10-20 | 株式会社中山鉄工所 | Dry sand making equipment |
| JP4024566B2 (en) * | 2002-03-20 | 2007-12-19 | 株式会社リコー | Airflow pulverizer / classifier |
-
2003
- 2003-10-16 JP JP2004544974A patent/JP4485950B2/en not_active Expired - Fee Related
- 2003-10-16 CN CNB200380101362XA patent/CN1320963C/en not_active Expired - Fee Related
- 2003-10-16 WO PCT/JP2003/013272 patent/WO2004035216A1/en active Application Filing
- 2003-10-16 AU AU2003301396A patent/AU2003301396A1/en not_active Abandoned
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331194A (en) * | 2007-02-07 | 2013-10-02 | 尤尼明公司 | Method of processing nepheline syenite powder to produce an ultra-fine grain size product |
| CN103331194B (en) * | 2007-02-07 | 2015-05-20 | 尤尼明公司 | Method of processing nepheline syenite powder to produce an ultra-fine grain size product |
| CN102266853A (en) * | 2011-08-05 | 2011-12-07 | 葛洲坝集团第五工程有限公司 | Waste rock flour recycling method for dry sandstone producing system |
| CN103120984A (en) * | 2011-11-19 | 2013-05-29 | 赵中林 | Method of iron concentrate powder magnetic separation in dry mode |
| CN104226454B (en) * | 2013-06-07 | 2016-10-05 | 韩国地质资源研究院 | The high-grade screening technique of book clay mineral based on case of wet attrition and classification |
| CN104226454A (en) * | 2013-06-07 | 2014-12-24 | 韩国地质资源研究院 | Layered clay mineral high-grade screening method based on wet grinding and classification |
| CN104084288A (en) * | 2014-06-09 | 2014-10-08 | 灌阳县陈工选矿机械制造有限公司 | An ore sorting device |
| CN105126983A (en) * | 2015-08-28 | 2015-12-09 | 长沙深湘通用机器有限公司 | Process for crushing and sorting fine particles |
| CN105170465A (en) * | 2015-08-28 | 2015-12-23 | 长沙深湘通用机器有限公司 | Gravity concentration method |
| CN106391260A (en) * | 2016-08-31 | 2017-02-15 | 安徽纽亚达科技有限责任公司 | Micaceous iron oxide dry-method processing method |
| CN106269086A (en) * | 2016-09-20 | 2017-01-04 | 派勒（天津）纳米技术有限公司 | A kind of dry type milling system on-line grinding technique |
| CN106391211A (en) * | 2016-09-20 | 2017-02-15 | 派勒（天津）纳米技术有限公司 | Intelligent dry type ball milling system |
| CN106391211B (en) * | 2016-09-20 | 2019-06-18 | 派勒（天津）纳米技术有限公司 | A kind of intelligent dry type milling system |
| CN107233967A (en) * | 2017-07-11 | 2017-10-10 | 桂林矿山机械有限公司 | Multistage powder flour mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4485950B2 (en) | 2010-06-23 |
| CN1320963C (en) | 2007-06-13 |
| WO2004035216A1 (en) | 2004-04-29 |
| AU2003301396A1 (en) | 2004-05-04 |
| JPWO2004035216A1 (en) | 2006-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1705517A (en) | Dry grinding system and dry grinding method | |
| CN1164368C (en) | Bauxite dressing method | |
| EP3498387A1 (en) | Incinerated-ash treatment device and treatment method | |
| CN1436250A (en) | Method and apparatus for producing desulfurizing agent for hot-metal | |
| CN101559404A (en) | Middlings crushing and sorting technique | |
| CN113019648A (en) | High-efficient preparation system of abandonment concrete regeneration sand powder | |
| CN106099238A (en) | A kind of recovery method of waste secondary battery ferrum | |
| CN1826187A (en) | Recovery process for high aspect ratio materials | |
| CN108940555B (en) | Physical dry separation method for natural flake graphite and flake mica | |
| CN1718747A (en) | Method of high efficiency recovering iron from slag | |
| CN1112357A (en) | Beneficiation of flake graphite | |
| CN1025292C (en) | Grinding process and continuous high-capacity micronizing mill for its implementation | |
| CN105290410A (en) | Method for preparing and reducing iron powder through steelmaking sludge | |
| JP2018164872A (en) | Method for processing metal-containing waste | |
| CN1791497A (en) | Method for cleaning sic particles | |
| CN110600737A (en) | Preparation method of graphite negative electrode material | |
| CN1287147A (en) | Technological process of producing calcined petroleum coke in coke oven | |
| JP2008133384A (en) | Method for producing high strength coke | |
| CN211436512U (en) | Steel slag treatment production line | |
| CN1269970C (en) | System and method for recycling slag from stainless steel refiner | |
| CN1119967A (en) | Gas current classifier and process for producing toner | |
| CN113477374A (en) | Machine-made sand production process | |
| JP3803928B2 (en) | Method for producing sponge titanium particles | |
| CN1623669A (en) | Dry mineral separation technology process for producing iron refine ore from iron ore containing magnetic | |
| CN1772453A (en) | Mixed waste plastic separating method and apparatus thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |