CN100361749C - Crushing method and apparatus - Google Patents
Crushing method and apparatus Download PDFInfo
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- CN100361749C CN100361749C CNB2004100455554A CN200410045555A CN100361749C CN 100361749 C CN100361749 C CN 100361749C CN B2004100455554 A CNB2004100455554 A CN B2004100455554A CN 200410045555 A CN200410045555 A CN 200410045555A CN 100361749 C CN100361749 C CN 100361749C
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- 238000000034 method Methods 0.000 title claims description 18
- 239000002994 raw material Substances 0.000 claims abstract description 166
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 11
- 238000010298 pulverizing process Methods 0.000 claims description 54
- 230000007246 mechanism Effects 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 22
- 235000012054 meals Nutrition 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 8
- 238000000227 grinding Methods 0.000 abstract description 15
- 238000003801 milling Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 48
- 239000002245 particle Substances 0.000 description 18
- 238000010408 sweeping Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241000879952 Campostoma Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
To efficiently mill raw materials such as cement clinkers using a two-stage milling machine provided with a vertical crusher and a ball mill.In a milling method for raw materials in which the raw materials discharged from the upper outlet 39 of the vertical crusher 1 is fed to the ball mill 150 for grinding them, in which the raw materials discharged from the lower outlet 34 of the vertical crusher 1 are separated into coarse powders and fine powders by a classifier 80 to return the coarse powders to the vertical crusher for grinding them again, and in which the fine powders are fed to the ball mill 150 to grind them, using the vertical crusher 1 provided with the upper outlet 39 and the lower outlet 34, new feed raw materials, which are charged into the vertical crusher 1, of 20-40% are discharged from the upper outlet 39 to the outside, thereby efficient milling is performed while suppressing mill vibration.(C)2005,JPO&NCIPI.
Description
Technical field
The present invention relates to a kind of breaking method and reducing mechanism, have vertical crusher (verticalcrusher) (being also referred to as vertical grinding mill (mill) sometimes), grader and ball mill (ballmill), main efficient crushing cement molten slag (cement clinker), cement raw material or inorganic matter etc.
Background technology
As the reducing mechanism of trickle crushing cement molten slag etc., used two sections reducing mechanisms with vertical crusher and ball mill in the past, or the air-blowing of built-in rotary grader (air swept) formula vertical crushing plant.
Described two sections reducing mechanisms are in fact all to take out by the raw material after the vertical crusher pulverizing from the bottom conveying end that is configured in the vertical crusher bottom, pulverize by ball mill then, raw material are carried out the reducing mechanism of trickle pulverizing.
For example, patent documentation 1 disclosed technology is a reducing mechanism as described below, utilizes the raw material after allocation units will be pulverized by vertical crusher to distribute, and pulverizes once more by vertical crusher and ball mill, thereby raw material is carried out trickle pulverizing.An example of this reducing mechanism in the past as shown in Figure 5.
In addition, as the air-sweeping type vertical crusher of built-in described grader, patent documentation 2 disclosed reducing mechanisms are for example arranged.
But described two sections reducing mechanisms in the past structurally must have vertical crusher and ball mill simultaneously, the complexity so the structure of reducing mechanism becomes.Therefore, in order to make each device efficient operation, it is complicated that the method for controlling of operation of reducing mechanism also becomes.
The reducing mechanism that particularly uses vertical crusher shown in Figure 5 and ball mill to constitute owing to the raw material before the importing ball mill is not carried out classification, produces the dissimilar problem of granularity of the raw material that drops into ball mill.If use the dissimilar raw material of ball mill grinding particle size of crush efficiency difference, then power consumption increases deterioration of efficiency.
In addition, took out a most breaking method of the product of pulverizing from the vertical crusher below, the also pulverized situation of the raw material that the particle diameter that need not pulverize is little is in the majority in the past, and the result makes unnecessary raw material form circulation.If the raw material that the particle diameter that need not pulverize is little grinds between the pulverization roller and turntable of vertical crusher in large quantities, produce then that vibration takes place vertical crusher and problem that can not steady running.
On the other hand, the vertical crusher of built-in grader shown in Figure 6 (being also referred to as the air-sweeping type vertical crusher sometimes) need to utilize the gas that imports from the turntable below to blow afloat raw material after pulverizing between pulverization roller in pulverizer and the turntable upward.But, in order to utilize the raw material after gas blows afloat this pulverizing upward, need a large amount of gases, therefore have the problem that needs to carry the bigger air blast power (fan power) that gas uses.
Summary of the invention
The present invention proposes in view of the above problems, a kind of breaking method and reducing mechanism are provided, in vertical crusher as a pulverizer use, the little raw material of particle diameter that need not vertical crusher, pulverize from an amount of removal of top conveying end, thereby pulverize raw material efficiently, and do not need to resemble and increase air blast power in the past the air-sweeping type vertical crusher.
In order to solve above-mentioned problem, breaking method of the present invention,
(1) vertical crusher will be pulverized between described turntable and pulverization roller from the raw material of turntable top input, utilize the gas that imports from described turntable below to blow afloat part of raw materials upward simultaneously and take out from the top conveying end, make to drop on from the raw material that described top conveying end takes out below the described turntable and and take out from the bottom conveying end, using this vertical crusher to flow to ball mill from the raw material that described top conveying end takes out pulverizes, utilize grader that the raw material that takes out from described bottom conveying end is separated into meal and fine powder simultaneously, making described meal return described vertical crusher pulverizes once more, described fine powder is flowed to described ball mill to be pulverized, according to this raw material pulverizing method, drop into the material quantity of the new supply of described vertical crusher relatively, ratio with 20～40% takes out raw material from described top conveying end, flows to described ball mill.
(2) in aforementioned (1) described breaking method, described raw material is a cement clinker.
In order to solve above-mentioned problem, reducing mechanism of the present invention,
In the reducing mechanism that possesses vertical crusher and ball mill and grader, have the material quantity of the new supply of the described vertical crusher of relative input, the ratio with 20～40% takes out described raw material from described top conveying end, flows to the unit of described ball mill.Wherein, described vertical crusher is a pulverizer, comprising: turntable; Pulverization roller, the raw material pulverizing that between itself and described turntable, will drop into above the described turntable; The top conveying end, it becomes the conveying end of the described raw material that is blown afloat by the gas that imports from described turntable below in the pulverized described raw material; The bottom conveying end, it becomes the conveying end that can not drop on the described raw material of described turntable below in the pulverized described raw material from the taking-up of described top conveying end.Described ball mill is a secondary pulverizer, and it will be from the described raw material pulverizing of described top conveying end taking-up.Described grader will be separated into described meal and described fine powder from the described raw material that described bottom conveying end takes out, and comprise: make meal return described vertical crusher, and at this oversize outlet of pulverizing once more; Fine powder is flowed to described ball mill, and at this fine powder outlet of pulverizing.
Description of drawings
Fig. 1 is the overall structure figure of reducing mechanism with vertical crusher of embodiments of the present invention.
Fig. 2 is the profilograph of the vertical crusher of embodiments of the present invention.
Fig. 3 be the expression embodiments of the present invention reducing mechanism gas transferring raw material amount than and the figure of the relation vibrated of grinding machine.
Fig. 4 be the fan electric power that uses of the vertical crusher of expression embodiments of the present invention than and the figure of the relation of gas transferring raw material amount ratio.
Fig. 5 is to use the overall structure figure of the reducing mechanism in the past of ball mill.
Fig. 6 is to use the overall structure figure of the reducing mechanism in the past of air-sweeping type vertical crusher.
Symbol description
1 vertical crusher; 2 turntables; Above the 2A turntable; 3 pulverization rollers; 15 block circle; 33 gas introduction ports; 34 bottom conveying ends; 35 raw material input ports; 39 top conveying ends; 41 bucket elevators; 60 gathering machines; 70 air blasts; 75 ribbon conveyers; 80 graders; 100 reducing mechanisms; 142 bucket elevators; 150 ball mills; 160 graders; 161 gathering machines; 171 air blasts; 175 air blasts; The P product.
The specific embodiment
Below, the breaking method of the embodiment that present invention will be described in detail with reference to the accompanying.
Fig. 1 and Fig. 2 represent a preferred exemplary of the reducing mechanism that present embodiment is used, and Fig. 1 is the overall structure figure with reducing mechanism of vertical crusher, and Fig. 2 is the profilograph of the major part of vertical crusher.Fig. 3 and Fig. 4 are the figure of effect of the breaking method of explanation present embodiment.
Below, the preferred structure of the vertical crusher 1 that present embodiment is used is described.As shown in Figure 2, vertical crusher 1 has: the housing (casing) that forms the gabarit of vertical crusher 1; The turntable 2 that horizontal circle is tabular; A plurality of pyramid types (conical) pulverization roller 3.Turntable 2 rotation by the reductor 2B that is located at pulverizer 1 bottom by not shown Motor Drive.Pulverization roller 3 is arranged on the position of outer circumference portion of the top 2A of branch turntables 2 such as circumferencial direction.
The central upper of 2A is provided with raw material input port 35 and raw material input groove (chute) 13 on the turntable of described housing.Drop into groove 13 2A above turntable from raw material input port 35 by raw material and drop into raw material (being also referred to as supply sometimes).The raw material 2A on turntable that drops into 2A above the turntable moves while drawing swirl shape track outer circumference portion of 2A on turntable, is rotated that 2A and pulverization roller 3 grind and pulverizing above the platform.
In addition, be rotated that 2A and pulverization roller 3 above the platform grinds and the part of raw materials pulverized is crossed the obstruction circle (dam ring) 15 that is provided with along the outer edge of this 2A above turntable, the gap of the outer circumference portion of 2A and housing is annular channel 30 (being also referred to as annulus portion 30 sometimes) above turntable, drop on turntable below by annular channel 30, as the product of pulverizing outside bottom conveying end 34 is fetched to the machine of vertical crusher 1.
In addition, be provided for below turntable 2, importing the gas introduction port 33 of gas at described housing.And, be provided for above turntable 2 discharging the top conveying end 39 of this gas at described housing.When vertical crusher 1 running, by importing gases (be air in the present embodiment) from this gas introduction port 33, in described housing generation below the turntable 2 towards above gas flow.
Raw material in dropping into vertical crusher 1 and be rotated platform 2 and pulverization roller 3 and pulverize and cross to block and enclose in 15 the raw material, the less raw material of diameter is blown afloat by described gas and rises in housing, and is removed from top conveying end 39.Its reason will be narrated in the back, but preferably adjust the amount of this importing gas, so that the material quantity that takes out from top conveying end 39 reaches 20～40% (weight %) the raw material that drops in the vertical crusher 1.In the present embodiment, the blowability of control air blast 70 is adjusted the amount of this importings gas, so that the material quantity that takes out from top conveying end 39 reaches 30 weight % the interior raw material of new input vertical crusher 1.
In addition, the number of the pulverization roller of the vertical crusher 1 that present embodiment is used is 3, and the turntable revolution is 73RPM, and pulverization roller central diameter D is 0.4m, and turntable diameter T is 0.64m, and the height that blocks circle 15 is the about 20mm of 2A above turntable.
In addition, the model of the operable vertical crusher 1 of present embodiment is not limited to aforementioned specification certainly, and for example, the shape of pulverization roller 3 can be the wheel fetalism vertical crusher 1 of sphere (spherical) shape.
Below, use Fig. 1 that a preferred exemplary of the reducing mechanism 100 of present embodiment is described.Reducing mechanism 100 is two-part reducing mechanisms, basically by constituting as the vertical crusher 1 of a pulverizer with as the ball mill 150 of secondary pulverizer.At reducing mechanism 100, pulverize once more by ball mill 150 by the raw material that vertical crusher 1 is pulverized in advance.
Herein, a preferred exemplary of embodiment shown in Figure 1 has not shown pipe arrangement.Utilize this pipe arrangement can be, 35 drop into vertical crushers 1 from the raw material input port by not shown air-lock feeding machine (air lock feeder) with the raw material of supplying with by ribbon conveyer 75 from the outside of reducing mechanism 100 (being also referred to as the raw material of new supply sometimes).
And the raw material that takes out from the bottom conveying end 34 of vertical crusher 1 is carried by bucket elevator 41 and is put into grader 80.Ball mill 150 is collected and dropped into to the raw material that takes out from top conveying end 39 by gathering machine 60 on the other hand.Therefore, gathering machine 60 and above-mentioned air blast 70 material quantity that becomes the new supply of relative input vertical crusher 1 takes out raw materials and flows to the inscape of the unit of ball mill 150 from top conveying end 39 with 20～40% ratio.
Herein, the fine powder outlet 80a that is located at the grader 80 of present embodiment is connected with a pipe arrangement that is used for can flow to ball mill 150 at the little raw materials of particle diameter that ball mill 150 is effectively pulverized as fine powder.And the oversize outlet 80b that is located at grader 80 is connected with the pipe arrangement that is used for the raw material that takes out from grader 80 as meal is flowed to raw material input port 35.Thus, the raw material that takes out as meal is dropped in the vertical crusher 1 once more.
In addition, the grader 80 of present embodiment constitutes particle diameter is approximately taken out as meal more than or equal to the pulverizing product of 5mm.
And the raw material after ball mill 150 is pulverized is transferred by bucket elevator 142, drops into grader 160 by quilts such as pipe arrangements, carries out classification herein.Grader 160 is connected with pipe arrangement of the processing that is used to carry out the back etc.The raw material that is reached product granularity in the raw material after the classification is removed as product, and the raw material more than or equal to product granularity is dropped into ball mill 150 once more simultaneously, pulverizes repeatedly.
Below, a preferred exemplary of the breaking method of the present embodiment of using reducing mechanism 100 is described.
The raw material of supplying with reducing mechanism 100 from the outside (being former funnel (hopper) 65 in the present embodiment) of reducing mechanism 100 is transported to vertical crusher 1 by ribbon conveyer 75.Raw material (being also referred to as the raw material of new supply sometimes) is (being cement clinker in the present embodiment) such as mineral.Drop in the vertical crushers 1 the raw material input port 35 of central upper that is transported to raw material 2A above the turntable that is located at vertical crusher 1 of vertical crusher 1.Input raw material drops into the central portion that groove 13 top of 2A above turntable is carried on 2A above the turntable by raw material.
The raw material that is carried is the 2A rotation on turntable, and produces the centrifugal force that forms because of rotation, moves while make raw material 2A on turntable draw swirl shape track 2A outer circumference portion above turntable thus.Thereby raw material is ground 2A above the turntable and pushes between the pulverization roller 3 of this 2A above turntable and pulverized.
Be rotated that 2A and pulverization roller 3 above the platform grinds and the raw material pulverized in cross the raw material that blocks circle 15, be discharged to the outer circumference surface of 2A above the turntable and the annular channel 30 between the housing inner peripheral surface.Raw material falls at annular channel 30, is fetched to the outside of vertical crusher 1 from the bottom conveying end 34 that is configured in turntable 2 belows as the product of pulverizing.And, adjust the blowability of air blast 70 this moment, the part of raw materials that drops into vertical crusher 1 is fetched into outside the machine from top conveying end 39.
In addition, the pulverizing product that are fetched into vertical crusher 1 outside from bottom conveying end 34 are transported to grader 80 by bucket elevator 41.The raw material that takes out from top conveying end 39 is transported to after gathering machine 60 collects on the other hand, is transported to ball mill 150 and pulverizes.Be transported in the raw material of grader 80, the raw material that diameter is little is removed as fine powder, and drops into ball mill 150 and pulverize, and the meal that diameter is big returns vertical crusher 1 once more and pulverizes.
And, be transferred and drop into grader 160 by the raw material after pulverizing by bucket elevator 142 at ball mill 150, carry out classification herein.The raw material that is reached product granularity in the raw material after the classification is removed as product, is simultaneously dropped into ball mill 150 once more more than or equal to the raw material of product granularity and pulverizes.
Below carry out the explanation of Fig. 3 and Fig. 4, the preferable range of the material quantity that takes out from the top conveying end 39 of vertical crusher 1 is described simultaneously.
In the present invention, numerical value such as gas transferring raw material amount ratio are defined as follows.
Once pulverize the product particle mean size than being to pulverize the value of product particle mean size, represent with following formula 1 divided by the particle mean size gained of raw material.
In addition, in the present invention, a pulverizer is a vertical crusher 1.
[formula 1]
In addition, particle mean size is defined as when the product of will pulverizing sieve, and its surplus ratio (not staying the ratio of the raw material on the sieve in the raw material in dropping into sieve by sieve) reaches the size of 36.8% o'clock mesh.
And, fan electric power than expression gas transferring raw material amount described later than be 1 o'clock the electric power amount (kWh) of air blast 70 of vertical crusher 1 as a reference value 1, change gas transferring raw material amount than the time the electric power amount of air blast 70.
Gas transferring raw material amount is represented with following formula 2 than being the value of the gas transferring raw material amount (ton/min) of a pulverizer divided by new base feed amount (ton/min) gained of supplying with from ribbon conveyer 75.
In addition, in the present embodiment, the gas transferring raw material amount of a pulverizer is the material quantity of top conveying end 39 outside gas is removed machine from vertical crusher 1, and the new raw material of supplying with is a material quantity of supplying with vertical crusher 1 by ribbon conveyer 75.
[formula 2]
Herein, Fig. 3 represents the relation of gas transferring raw material amount ratio and grinding machine vibration.
Gas transferring raw material amount is than more little, and the material quantity that takes out from the top conveying end of vertical crusher is few more, and the vibration (grinding machine vibration) that vertical crusher produces is just big more.
For example, 1/4 of the grinding machine vibration of the grinding machine vibration that according to Fig. 3, gas transferring raw material amount ratio is made as 0.2 when (taking out raw material 20%) when gas transferring raw material amount ratio is made as 0 (not taking out raw material from the top conveying end) from the top conveying end.
And,, be that 0 (not taking out raw material from the top conveying end) is that the grinding machine vibration sharply reduces 0.2 (the taking out raw material 20% from the top conveying end) to gas transferring raw material amount ratio from gas transferring raw material amount ratio according to Fig. 3.This reduction rate is suppressed, no longer reduces than surpassing 0.4 (taking out raw material 40% from the top conveying end) time in gas transferring raw material amount.
Therefore, distinguish that the preferred material quantity that drops into the new supply of vertical crusher 1 relatively takes out raw material with the ratio more than or equal to 0.2 from top conveying end 39, more preferably greater than the scope that equals 0.3 from the viewpoint of grinding machine vibration.
In addition, Fig. 4 represents the relation of fan electric power ratio and gas transferring raw material amount ratio.
Can distinguish to have increases gas transferring raw material amount ratio more, the trend that the fan electric power of vertical crusher 1 also increases more.As previously mentioned, because the grinding machine vibration when surpassing 0.4 (taking out raw material 40% from the top conveying end) of described gas transferring raw material amount is suppressed, so the preferred material quantity of discharging from top conveying end 39 of adjusting is no more than 40 weight % of the raw material of new supply.
In addition, as with reference to explanation, if the shape of raw material and raw material granularity are made as necessarily, the pulverizing product particle mean size of a pulverizer is than more little, and then the material quantity smaller or equal to designated size increases, so the non-productive work amount of ball mill 150 reduces.
And,,, can reduce the pulverizing product particle mean size of a pulverizer by improving crush force or the discharge part of raw materials of a pulverizer being circulated according to the record of prior art.
But if cross the pressing force that increases pulverization roller 3 greatly for improving crush force, then correspondingly consumption of power increases.Below vertical crusher, taking out the most breaking method of the product of pulverizing in the past, discharge part of raw materials circulation by making a pulverizer etc., the also pulverized situation of raw material that the feasible particle diameter that need not pulverize is little is in the majority, and the result causes and carries out unnecessary raw material circulation.
If carry out unnecessary raw material circulation, the power that can increase consumption certainly because the little raw material of the particle diameter that need not pulverize is gone between the pulverization roller 3 and turntable 2 of vertical crusher by a large amount of stone rollers, makes that the vertical crusher vibration can not steady running.
Particularly under the situation of the cement clinker that contains the little raw material of particle diameter from the raw material of raw material input port 35 supplies, this trend is remarkable.
Import the breaking method of the present invention of volume gas to pulverizer, according to gas transferring raw material amount shown in Figure 4 than and fan electric power than the relation of (air blast power), be considered to make system capability to compare variation.
But according to the result who conscientiously studies, the present application person find to have and can not have the zone (gas transferring raw material amount ratio is 0.2～0.4) that suppresses the grinding machine vibration lavishly for the foregoing reasons.
According to these situations, invented by the method for gas transferring raw material amount than the running that is adjusted into 0.2～0.4 system that effectively pulverizes.
If described scope is changed saying, the material quantity (weight of the raw material of discharging in 1 minute) that utilizes gas to take out from top conveying end 39 is adjusted into 20～40% of the material quantity (weight of the raw material of supplying with in 1 minute) that reaches new supply.
Particularly under the situation of the cement clinker that illustrates in the present embodiment, the situation that contains the little raw material of particle diameter from the new base feed that ribbon conveyer 75 is supplied with is in the majority.The raw material that the diameter that contains in the new raw material of supplying with is little is not pulverized after dropping into vertical crusher 1 at once, but blown afloat by gas and take out from top conveying end 39, just can effectively not finish pulverizing so vertical crusher 1 need not carry out unnecessary work, and be difficult for producing the grinding machine vibration.
In addition, than being in 0.3～0.4 the scope, the effect that suppresses the grinding machine vibration further improves in gas transferring raw material amount, so more preferably the material quantity that utilizes gas to discharge from top conveying end 39 is adjusted into 30～40 weight % of the raw material that reaches new supply.
And, change if supply with the shape and the particle diameter of the new raw material of vertical crusher 1, how many gas transferring raw material amounts can change than waiting sometimes.
When this situation, measure the material quantity that takes out from vertical crusher 1, adjust from the outside material quantity that drops into this vertical crusher of described reducing mechanism, so that the material quantity of this taking-up reaches certain value, can carry out the stable continuous running thus.According to the breaking method of the present invention and the reducing mechanism of above explanation, the material quantity that the top conveying end from vertical crusher is taken out is adjusted into 20～40% (gas transferring raw material amount is interior than the scope that is 0.2～0.4) of the material quantity of new supply.Thus, can carry out effective running of crushing system, and can prevent owing to the vibration of between pulverization roller and turntable, grind the vertical crusher that fine powder produces.
In addition, when raw material was cement clinker, the situation that contains the little raw material of particle diameter from the new base feed that ribbon conveyer is supplied with was in the majority.If adopt breaking method of the present invention, the little raw material of diameter that contains in the new raw material of supplying with is blown afloat by gas and is removed from the top conveying end.So vertical crusher need not carry out unnecessary work, crush efficiency height.
Claims (3)
1. raw material pulverizing method, pulverize between described turntable and pulverization roller with the raw material that vertical crusher will drop into from the turntable top, utilize the gas that imports from described turntable below to blow afloat part of raw materials upward simultaneously and take out from the top conveying end, make to drop on from the raw material that described top conveying end takes out below the described turntable and and take out from the bottom conveying end, using this vertical crusher to flow to ball mill from the raw material that described top conveying end takes out pulverizes, utilize grader that the raw material that takes out from described bottom conveying end is separated into meal and fine powder simultaneously, making described meal return described vertical crusher pulverizes once more, described fine powder is flowed to described ball mill to be pulverized, it is characterized in that
Drop into the material quantity of the new supply of described vertical crusher relatively, the ratio with 20～40% takes out raw material from described top conveying end, flows to described ball mill.
2. breaking method according to claim 1, described raw material are cement clinker.
3. reducing mechanism has:
Vertical crusher, it is a pulverizer, comprising: turntable; Pulverization roller, the raw material pulverizing that between itself and described turntable, will drop into above the described turntable; The top conveying end, it becomes the conveying end of the described raw material that is blown afloat by the gas that imports from described turntable below in the pulverized described raw material; The bottom conveying end, it becomes the conveying end that can not drop on the described raw material of described turntable below in the pulverized described raw material from the taking-up of described top conveying end;
Ball mill, it is a secondary pulverizer, will be from the described raw material pulverizing of described top conveying end taking-up;
Grader, it will be separated into described meal and described fine powder from the described raw material that described bottom conveying end takes out, and comprise: make meal return described vertical crusher and at this oversize outlet of pulverizing once more; Fine powder flowed to described ball mill and at this fine powder outlet of pulverizing,
It is characterized in that having such unit: it drops into the material quantity of the new supply of described vertical crusher relatively, and the ratio with 20～40% takes out raw material from described top conveying end, flows to described ball mill.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003150337A JP4269257B2 (en) | 2003-05-28 | 2003-05-28 | Grinding method |
| JP150337/2003 | 2003-05-28 |
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| Publication Number | Publication Date |
|---|---|
| CN1572371A CN1572371A (en) | 2005-02-02 |
| CN100361749C true CN100361749C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100455554A Expired - Lifetime CN100361749C (en) | 2003-05-28 | 2004-05-28 | Crushing method and apparatus |
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| JP (1) | JP4269257B2 (en) |
| CN (1) | CN100361749C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4865285B2 (en) * | 2005-09-14 | 2012-02-01 | バブコック日立株式会社 | Crusher installation method |
| CN100389882C (en) * | 2005-11-23 | 2008-05-28 | 沈阳铝镁设计研究院 | Electrolyte disintegration system and method |
| CN101134175B (en) * | 2007-09-24 | 2010-09-29 | 天津水泥工业设计研究院有限公司 | Roller press combination grinding device |
| CN101987311B (en) * | 2009-08-01 | 2012-06-20 | 王华业 | Joint grinding process of FPP mill |
| CN102784702A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达机械制造有限公司 | Parallelly-connected grinding technology and equipment thereof |
| CN104003635B (en) * | 2013-02-21 | 2016-11-16 | 高县天顺建材有限责任公司 | Waste heat grinding process and equipment |
| CN103567046B (en) * | 2013-10-31 | 2015-07-29 | 河南技兴机械有限公司 | Carbon fiber disintegrating apparatus |
| CN103949327A (en) * | 2014-05-19 | 2014-07-30 | 江苏新业重工股份有限公司 | Novel cement grinding system |
| DK3812046T3 (en) * | 2018-06-22 | 2022-11-21 | Kawasaki Heavy Ind Ltd | Grinding system |
| JP7330786B2 (en) * | 2019-07-05 | 2023-08-22 | 川崎重工業株式会社 | Method for operating pulverization system and method for producing powder |
| CN114289131A (en) * | 2021-12-27 | 2022-04-08 | 霍山县天下泽雨生物科技发展有限公司 | Energy-saving type smashing device for processing Huoshan ganoderma lucidum and smashing method thereof |
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- 2003-05-28 JP JP2003150337A patent/JP4269257B2/en not_active Expired - Fee Related
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2004
- 2004-05-28 CN CNB2004100455554A patent/CN100361749C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515805A (en) * | 1991-07-09 | 1993-01-26 | Ube Ind Ltd | Grinding device |
| CN1114242A (en) * | 1993-10-15 | 1996-01-03 | 川崎重工业株式会社 | Method and apparatus for grinding material particles |
| JPH08309225A (en) * | 1995-05-16 | 1996-11-26 | Ishikawajima Harima Heavy Ind Co Ltd | Pulverizer equipped with fluidized bed type classifier |
| JP2000210587A (en) * | 1999-01-26 | 2000-08-02 | Ube Ind Ltd | Crusher |
| JP2001334167A (en) * | 2000-05-29 | 2001-12-04 | Ube Ind Ltd | Pulverizing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004351286A (en) | 2004-12-16 |
| CN1572371A (en) | 2005-02-02 |
| JP4269257B2 (en) | 2009-05-27 |
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