CN109570511A - Crushing device - Google Patents
Crushing device Download PDFInfo
- Publication number
- CN109570511A CN109570511A CN201810876272.6A CN201810876272A CN109570511A CN 109570511 A CN109570511 A CN 109570511A CN 201810876272 A CN201810876272 A CN 201810876272A CN 109570511 A CN109570511 A CN 109570511A
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- China
- Prior art keywords
- container
- broken
- central axis
- whole grain
- bottom wall
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/108—Mixtures obtained by warm mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/045—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling
Abstract
The one aspect of crushing device of the invention includes: netted broken container, and above-mentioned broken container is in the tubular with the end extended along central axis, and enters for prilling powder and crushing medium；And whole grain container, above-mentioned whole grain container are in the tubular with the end extended along central axis, contain broken container, and around center axis rotation together with broken container.
Description
Technical field
The present invention relates to a kind of crushing devices.
Background technique
In Japanese Laid-Open Patent Publication 2011-179077 bulletin, broken be crushed is carried out as to prilling powder
Machine describes hammer crusher, needle mill, roller mill etc..
Summary of the invention
Prilling powder is crushed and is crushed it by existing crusher, thus be easy to produce than desired particle size more
Small micropowder.
In view of the foregoing, one of its goals is to provide a kind of broken dress of generation that can inhibit micropowder by the present invention
It sets.
The one aspect of crushing device of the invention includes: netted broken container, and above-mentioned broken container is in along central axis
The tubular with the end extended, and enter for prilling powder and crushing medium；And whole grain container, above-mentioned whole grain container are in along above-mentioned
The tubular with the end that central axis extends, contains above-mentioned broken container, and revolves together with above-mentioned broken container around above-mentioned central axis
Turn.
According to an aspect of the present invention, it is possible to provide a kind of crushing device for the generation that can inhibit micropowder.
Detailed description of the invention
Fig. 1 is the longitudinal section view for indicating prilling granulator.
Fig. 2 is the configuration for indicating the paddle in stirring container and the sectional elevation of direction of rotation.
Fig. 3 A is the perspective view for indicating the first paddle.
Fig. 3 B is the perspective view for indicating the second paddle.
Fig. 4 is the perspective view for indicating crushing device.
Fig. 5 is the longitudinal section view for indicating crushing device.
Fig. 6 A is the cross-sectional view for indicating the granulated particle (prilling powder) in prilling granulator.
Fig. 6 B is the prilling powder for indicating to handle in crushing device and the figure of crushing medium.
Fig. 6 C is the figure for indicating broken container, prilling powder and crushing medium.
Fig. 6 D is the figure for indicating broken container, prilling powder and crushing medium.
Fig. 6 E is the figure for indicating broken container and prilling powder.
Specific embodiment
The granulating system 10 of present embodiment includes prilling granulator 20 and crushing device 30.Granulation dress in granulating system 10
20 are set in the process before crushing device 30.Crushing device 30 is used in 20 subsequent process of prilling granulator.
Firstly, being illustrated to prilling granulator 20.As shown in Figure 1, prilling granulator 20 will in raw material powder P hybrid bonding
Slurry made of agent B is granulated into graininess.Prilling granulator 20 is used in and slurry is granulated into granular granulating working procedure.Raw material powder
Last P is the metal powder such as tungsten, stainless steel, iron.Adhesive B is such as resin solution.
Prilling granulator 20 includes stirring container 11, axle portion 13, paddle 12 and heating device 14.Stirring container 11 is in along the
The tubular with the end that one central axis J1 extends.First central axis J1 extends along relative to the inclined direction of vertical direction.Stirring is held
Device 11 has peripheral wall portion 11a and bottom wall part 11c.In the following description, the direction parallel with the first central axis J1 is simply claimed
Make " axial direction ".Axial side is along axial direction from the opening portion 11b of peripheral wall portion 11a to the direction of bottom wall part 11c, is axial bottom
The side wall portion 11c.Axial side is the right side obliquely downward of Fig. 1.The axial other side is along axial direction from bottom wall part 11c to opening portion 11b
Direction is the axial opening portion side 11b.The axial other side is the oblique upside in a left side of Fig. 1.It will be centered on the first central axis J1
Radial direction is referred to simply as " radial direction ".In radial direction, the direction that will be close to the first central axis J1 is referred to as radially inner side, will be far from the first center
The direction of axis J1 is referred to as radial outside.It will be circumferential referred to simply as " circumferential direction " centered on the first central axis J1.
By the upside of vertical direction referred to simply as " upside ", by the downside of vertical direction referred to simply as " downside "." upside "
It is the upside of Fig. 1, " downside " is the downside of Fig. 1.To simply it claim from bottom wall part 11c to the direction of opening portion 11b in the horizontal direction
Make " front side ", it will be in the horizontal direction from opening portion 11b to the direction of bottom wall part 11c referred to simply as " rear side "." front side " is Fig. 1
Left side, " rear side " are the right sides of Fig. 1.
Stirring container 11 accommodates slurry made of the mixed adhesive B in raw material powder P.Slurry enters stirring and holds
Device 11.Raw material powder P and adhesive B is mixed into slurry in the outside of stirring container 11, and enters in stirring container 11.Separately
Outside, raw material powder P and adhesive B can also be put into stirring container 11 respectively, and mixes and is slurried in stirring container 11
Material.
Stirring container 11 is in the tubular centered on the first central axis J1.Stirring container 11 is in cylindrical shape with the end.Peripheral wall
Portion 11a is in the cylindrical shape axially extended.Peripheral wall portion 11a is towards axial another side opening.End of the peripheral wall portion 11a in the axial other side
Portion has opening portion 11b.Opening portion 11b is annular in shape.Bottom wall part 11c blocks the axial side of peripheral wall portion 11a.Bottom wall part
11c is connect with the end of the axial side of peripheral wall portion 11a.Bottom wall part 11c is in disk-shaped.The plate face of bottom wall part 11c towards axial direction,
And extend on the direction orthogonal with the first central axis J1.
The part positioned at lower side in the opening portion 11b inner circumferential of peripheral wall portion 11a is configured at the centre bit than bottom wall part 11c
Rest against the position of upside.That is, the lowest part of the inner circumferential of opening portion 11b is located at intersecting than bottom wall part 11c and the first central axis J1
The upper position in part.According to the present embodiment, the position mistake in the lowest part of 11 split shed portion 11b of stirring container can be inhibited
It is low, so that it is guaranteed that the treating capacity of stirring container 11.
It is equipped with shaft 11d in bottom wall part 11c, side extends above-mentioned shaft 11d in the axial direction from bottom wall part 11c.Shaft 11d with
It is axially extended centered on first central axis J1.Stirring container 11 is driven by stirring container driving portion (not shown) and in first
Mandrel J1 rotation.Stirring container driving portion keeps stirring container 11 circumferentially rotatable via shaft 11d.Stirring container 11 is stirred appearance
Device driving portion drives and T1 rotates along the first direction of rotation.
Axle portion 13 is inserted into stirring container 11.Axle portion 13 is inserted into stirring container 11 from opening portion 11b, and with
Towards rear side and to downside extend.Axle portion 13 passes through opening portion 11b from the outside of stirring container 11, and exists from opening portion 11b
The inside of peripheral wall portion 11a extends to bottom wall part 11c.Axle portion 13 extends along the second central axis J2.Axle portion 13 is in the second central axis
Shaft-like centered on J2.In the example of present embodiment, the second central axis J2 is parallel with the first central axis J1.Axle portion as a result,
13 axially extend.Second central axis J2 is configured at the position between the first central axis J1 and peripheral wall portion 11a radially.Axle portion
13 radial position is configured at the position of radial position in the inner part than peripheral wall portion 11a.It is remote that axle portion 13 is configured to radially inside
From peripheral wall portion 11a.Axial one end (lower end) of axle portion 13 is opposite with the axial plate face of the other side of the direction of bottom wall part 11c.Axle portion
13 are driven and rotated around the second central axis J2 by paddle driving portions (not shown).
Paddle 12 is configured in stirring container 11, and is rotated around the second central axis J2.Paddle driving portion is via axle portion
13 rotate paddle 12 around the second central axis J2.Paddle 12 is stirred the driving of leaf driving portion and revolves along the second direction of rotation T2
Turn.Paddle 12 is configured at the end of in the inner space (teeter chamber) of stirring container 11, axial side.Paddle 12 is matched
It is placed in the inner space of stirring container 11, radial outside end.Under paddle 12 is configured in stirring container 11
Portion.Paddle 12 is located at the radially inner side of peripheral wall portion 11a in a manner of with the spaced apart at gaps of peripheral wall portion 11a.Paddle 12 with
It is located at the axial other side of bottom wall part 11c with the mode of the spaced apart at gaps of bottom wall part 11c.The lower end of paddle 12 and axle portion 13
Portion's connection.Paddle 12 is installed on the end of the axial side of axle portion 13.Paddle 12 is fixed on axle portion 13.
Heating device 14 heats stirring container 11.Heating device 14 has pressure fan 14a and shell 14b.Air-supply
The outer surface supplying temperature of machine 14a to stirring container 11 air higher than the temperature of slurry.Pressure fan 14a is to stirring container 11
The outer surface supplying temperature air lower than the temperature that the adhesive ingredients of slurry vaporizes.Pressure fan 14a is supplied to stirring container 11
Air after heating.Pressure fan 14a and the inside of shell 14b communicate with each other.After pressure fan 14a supplies heating into shell 14b
Air.Stirring container 11 is contained in shell 14b.Shell 14b is in box-like.The air of pressure fan 14a is in shell 14b
Portion's circulation.
Shell 14b has bottom wall 14c, peripheral wall 14d and roof 14e.Bottom wall 14c covers stirring container 11 from downside.Bottom
Wall 14c is connect with pressure fan 14a.Peripheral wall 14d covers stirring container 11 from around vertical axis.Roof 14e will from upside
Stirring container 11 covers.Roof 14e is configured to be inclined relative to horizontal.Roof 14e extends with towards rear side to downside.
In the example shown in the series of figures, roof 14e and the peripheral wall portion 11a of stirring container 11 are parallel to each other.Exhaust portion 14f is equipped in roof 14e.
Exhaust portion 14f presents the tubular of lower extension.The inside of exhaust portion 14f and the inside of shell 14b communicate with each other.
The prilling granulator 20 of present embodiment makes to stir by heating stirring container 11 using heating device 14
It mixes container 11 and paddle 12 rotates, so that the slurry in stirring container 11 is granulated into graininess.At this point, slurry holds in stirring
It is gradually dried in device 11, and overturns and curl in stirring container 11, to make glomerate particle (prilling powder).Overturning
Therefore the prilling powder curled drying from surface due to from the heat of stirring container 11 can inhibit to form cavity in inside.By
This, can improve the apparent density of prilling powder.Since the apparent density of prilling powder can be improved, after granulating system 10
It can be shortened mold stroke when the compression forming of continuous process, and production efficiency can be improved.In addition, the particle of prilling powder is in spherical,
Therefore, the mobility of the powder in mold when compression forming is stablized.Therefore, the production obtained after compression forming can steadily be improved
The performance of product.
In addition, prilling granulator 20 according to the present embodiment, makes slurry in spray without what existing prilling granulator had
The structure etc. that mist is dispersed.Prilling granulator 20 can simplify structure as a result, cut down operating cost.In addition, the processing time shortens, energy
Improve production efficiency.It is indicated in fig. 6 by prilling granulator 20 granulated particle (prilling powder) G of present embodiment.Pelletizing
The size of the particle of last G is such as 500 μm or less.The surface Ga of prilling powder G becomes dry state, and prilling powder G's is interior
Portion Gb becomes wet state.Prilling powder G is easily broken in the aftermentioned crushing device 30 of the subsequent handling of prilling granulator 20
And whole grain.
As shown in Figure 1, in the present embodiment, the lower part (angle that slurry and prilling powder in stirring container 11 are concentrated
Portion) it is configured with paddle 12, therefore granulation efficiency is high.In addition, paddle 12 is connect with the lower end of axle portion 13, therefore, it is easy
Paddle 12 is configured at the lower part in stirring container 11.
In addition, in the present embodiment, the first central axis J1 extends along relative to the inclined direction of vertical direction, therefore,
Stirring container 11 becomes relative to the inclined posture of vertical direction.Therefore, it is easy to concentrate on slurry and prilling powder into stirring appearance
Lower part in device 11, so as to which slurry to be efficiently granulated into the prilling powder of anticipant character.First central axis J1 is relative to water
The inclined angle, θ 1 of plane is 30~60 °.Angle, θ 1 is 30 ° or more, therefore, can ensure that the treating capacity of stirring container 11.Angle, θ
1 is 60 ° hereinafter, therefore, can improve granulation efficiency, and be easy prilling powder being granulated into anticipant character.
The revolving speed of stirring container 11 is 10~50rpm.The revolving speed of stirring container 11 is 10rpm or more, therefore, is easy to make to starch
Material moves in stirring container 11.In addition, prilling powder is easy to overturn in stirring container 11, to be easy to curl into particle
It is spherical.Additionally, proper the drying of particle surface is carried out, therefore, in the crushing device 30 of subsequent handling, is easy pelletizing
End is crushed and whole grain.That is, prilling powder is not easy to be attached to the netted broken container 21 of aftermentioned crushing device 30, processing is stablized.
The case where revolving speed of stirring container 11 is 50rpm hereinafter, therefore, and slurry is attached to the inner wall of stirring container 11 because of centrifugal force etc. quilt
Inhibit, so that processing be made to stablize.In addition, the case where prilling powder excessively overturns crushing, particle excessively becomes smaller is suppressed, so as to
Obtain the prilling powder of anticipant character.
As shown in Fig. 2, stirring container 11 is rotated around the first central axis J1 when from the end on observation of the first central axis J1
First direction of rotation T1 is mutually the same rotation side around the second direction of rotation T2 that the second central axis J2 rotates with paddle 12
To.As shown in Fig. 2, in the example of present embodiment, when in the axial unilateral observation stirring container 11 of direction, the first rotation side
It is clockwise to T1 and the second direction of rotation T2.In addition, the first direction of rotation T1 and the second direction of rotation T2 are also possible to the inverse time
Needle.According to the present embodiment, the prilling powder that T1 is overturn in stirring container 11 along the first direction of rotation is by along the second rotation side
The paddle 12 rotated to T2 pushes and the impetus increases, it is easier to overturn, so as to improve granulation efficiency.
As shown in Fig. 2, the rotation center (the second central axis J2) of paddle 12 is located at the rotation center than bottom wall part 11c
The position of (the first central axis J1) more on the lower, and be located at and be closer to the first rotation than the vertical plane VP including the first central axis J1
Turn the position of direction T1.According to the present embodiment, paddle 12 obliquely provoke and overturn on the inner peripheral surface of stirring container 11 by side
Prilling powder, the prilling powder provoked drops back into due to gravity towards side obliquely downward, therefore, is easier prilling powder in inner peripheral surface
Upper overturning.Therefore, granulation efficiency is further increased.
As shown in Fig. 1, Fig. 3 A and Fig. 3 B, paddle 12 has the first paddle 12a and the second paddle 12b.First stirs
Mix the axial other side that leaf 12a is configured at the second paddle 12b.Second paddle 12b is configured at the axial direction of the first paddle 12a
Side.Second paddle 12b is located between bottom wall part 11c and the first paddle 12a.First paddle 12a and the second paddle
12b is configured at the lower end of axle portion 13 in a manner of axially spaced interval.Second paddle 12b is configured to itself and bottom wall part
The spaced apart at gaps of 11c, and it is opposite with bottom wall part 11c from the axial other side.According to the present embodiment, it is equipped with the first paddle
12a and the second paddle 12b, therefore the mixing power being stirred to slurry and prilling powder can be improved.In addition, being stirred to first
Leaf 12a and the second paddle 12b assign different functions, so as to easily be granulated out the prilling powder of anticipant character.
As shown in Figure 3A, the first paddle 12a is paddle-like (paddle type).First paddle 12a has mounting portion
16a and blade part 17a.Mounting portion 16a is in the tubular centered on the second central axis J2.Mounting portion 16a is cylindrical.Mounting portion
16a is installed on axle portion 13 by screw (not shown) etc. and is fixed.
Blade part 17a is connect with the outer peripheral surface of mounting portion 16a.Blade part 17a is from the periphery of mounting portion 16a towards with second
Central axis J2 orthogonal radial outside extends.Mounting portion 16a outer peripheral surface around the second central axis J2 to be separated from each other identical
Every mode be equipped with multiple blade part 17a.In the example shown in the series of figures, in the outer peripheral surface of mounting portion 16a to be separated from each other identical
Every mode set there are two blade part 17a.In the whole region radially orthogonal with the second central axis J2, blade part 17a
Width it is approximately fixed.In the whole region radially orthogonal with the second central axis J2, the blade pitch angle of blade part 17a
It is approximately fixed.Along in the circumferential entire width of the second central axis J2, the blade pitch angle of blade part 17a is approximately fixed.
Blade pitch angle be equivalent to every edge around the circumferential unit length of the second central axis J2 the second central axis J2 of direction it is axial
Displacement.According to the present embodiment, big paddle-like is acted on by the way that the first paddle 12a is set as cutting, so as to easily
Blocking big prilling powder in stirring container 11 is pulverized.
As shown in Figure 3B, the second paddle 12b is propeller-like (propeller type).Second paddle 12b has
Mounting portion 16b and blade part 17b.Mounting portion 16b is in the tubular centered on the second central axis J2.Mounting portion 16b is cylindrical.
Mounting portion 16b is installed on axle portion 13 by screw (not shown) etc. and is fixed.
Blade part 17b is connect with the outer peripheral surface of mounting portion 16b.Blade part 17b is from the periphery of mounting portion 16b towards with second
Central axis J2 orthogonal radial outside extends.Mounting portion 16b outer peripheral surface around the second central axis J2 to be separated from each other identical
Every mode be equipped with multiple blade part 17b.In the example shown in the series of figures, in the outer peripheral surface of mounting portion 16b to be separated from each other identical
Every mode set there are three blade part 17b.The width of blade part 17b is as the outer peripheral surface from mounting portion 16b is towards in second
The orthogonal radial outside of mandrel J2 and change.The width of blade part 17b is as the outer peripheral surface from mounting portion 16b is towards in second
The orthogonal radial outside of mandrel J2 and become larger.The width of blade part 17b is outer the radial direction orthogonal with the second central axis J2
Side portion is maximum.The width of blade part 17b with from orthogonal with the second central axis J2 radial outer end towards inside and by
Gradual change is big.The blade pitch angle of blade part 17b is along the radial variations orthogonal with the second central axis J2.The blade of blade part 17b inclines
Oblique angle is along the circumferential direction variation around the second central axis J2.According to the present embodiment, by the way that the second paddle 12b is set as stirring action
Big propeller-like can easily provoke slurry and prilling powder near bottom wall part 11c, can efficiently stir.
As shown in Figure 1, heating device 14 according to the present embodiment, it can be by pressure fan 14a efficiently to stirring container
11 are heated.In addition, heating efficiency can be improved by shell 14b.The drying of slurry is suitably promoted, to can be shortened
Handle the time.In addition, the surface of prilling powder is in suitably dry state, and internal as wet state, so as to obtain
It must be easy the broken prilling powder with the anticipant character of whole grain of crushing device 30 by subsequent handling.In addition, the top of shell 14b
Wall 14e is configured to be inclined relative to horizontal.Roof 14e extends with towards rear side to downside.In showing for present embodiment
In example, roof 14e and the peripheral wall portion 11a of stirring container 11 are parallel to each other.Therefore, it is present near roof 14e in shell 14b
High temperature air efficiently peripheral wall portion 11a is heated, to can be further improved treatment effeciency.
Then, crushing device 30 is illustrated.Crushing device 30 is used for prilling powder is broken broken with whole grain
In process.Crushing device 30 will be crushed by the prilling powder after the granulation of prilling granulator 20 and whole grain, and forms desired particle
The prilling powder (broken powder) of size.
As shown in Figure 4 and Figure 5, crushing device 30 includes broken container 21 and whole grain container 22.Broken container 21 is in along the
The tubular with the end that three central axises (central axis) J3 extends.Third central axis J3 prolongs on edge relative to the inclined direction of vertical direction
It stretches.Broken container 21 has peripheral wall portion 21a and bottom wall part 21c.In the following description, by the side parallel with third central axis J3
To referred to simply as " axial direction ".Axial side is to be from the opening portion 21b of peripheral wall portion 21a to the direction of bottom wall part 21c along axial direction
The axial side bottom wall part 21c.Axial side is the right side obliquely downward of Fig. 5.The axial other side is along axial direction from bottom wall part 21c to opening
The direction of portion 21b is the axial opening portion side 21b.The axial other side is the oblique upside in a left side of Fig. 5.It will be with third central axis J3
Centered on it is radial referred to simply as " radial direction ".In radial direction, the direction that will be close to third central axis J3 is referred to as radially inner side, will be remote
Direction from third central axis J3 is referred to as radial outside.It will be circumferential referred to simply as " circumferential direction " centered on third central axis J3.
By the upside of vertical direction referred to simply as " upside ", by the downside of vertical direction referred to simply as " downside "." upside "
It is the upside of Fig. 5, " downside " is the downside of Fig. 5.To simply it claim from bottom wall part 21c to the direction of opening portion 21b in the horizontal direction
Make " front side ", it will be in the horizontal direction from opening portion 21b to the direction of bottom wall part 21c referred to simply as " rear side "." front side " is Fig. 5
Left side, " rear side " are the right sides of Fig. 5.
As shown in figure 4, prilling powder G and crushing medium M enter broken container 21.Broken container 21 is in netted.Peripheral wall portion
21a and bottom wall part 21c is in netted.The prilling powder G for being put to broken container 21 is granulated by prilling granulator 20
Powder.As shown in Figure 6A, prilling powder G is in the state after surface Ga drying, and surface Ga is harder than internal Gb.In addition, internal
Gb is in wet state, and internal Gb specific surface Ga is softer.The liquid parts of slurry remain on internal Gb.The net of broken container 21
The size and shape etc. of eye is the feelings of desired granular size of prilling powder (broken powder) G after considering break process etc.
It is suitably determined under condition.
As shown in figure 4, crushing medium M is in spherical.Crushing medium M is for example stainless steel.Crushing medium M can not pass through
The mesh of broken container 21.The size of crushing medium M is bigger than the size of the mesh of broken container 21.The shape ruler of crushing medium M
The opening size of the per unit opening of the very little mesh than broken container 21 is big.Multiple crushing mediums are contained in broken container 21
M。
As shown in Figure 4 and Figure 5, broken container 21 is in the tubular centered on third central axis J3.Broken container 21 is in have
The cylindrical shape at bottom.Peripheral wall portion 21a is in the cylindrical shape axially extended.Peripheral wall portion 21a is towards axial another side opening.Peripheral wall portion 21a
There is opening portion 21b in the end of the axial other side.Opening portion 21b is annular in shape.Bottom wall part 21c is by the axial direction of peripheral wall portion 21a
Side blocking.Bottom wall part 21c is connect with the end of the axial side of peripheral wall portion 21a.Bottom wall part 21c is in disk-shaped.Bottom wall part 21c
Plate face extend towards axial direction, and on the direction orthogonal with third central axis J3.
The part positioned at lower side in the opening portion 21b inner circumferential of peripheral wall portion 21a is configured at the centre bit than bottom wall part 21c
Rest against the position of upside.That is, the lowest part of the inner circumferential of opening portion 21b is located at intersecting than bottom wall part 21c and third central axis J3
The upper position in part.According to the present embodiment, the position mistake in the lowest part of 21 split shed portion 21b of broken container can be inhibited
Low situation, so that it is guaranteed that the treating capacity of broken container 21.
Whole grain container 22 is in the tubular with the end extended along third central axis J3.Whole grain container 22 is in third central axis J3
Centered on tubular.Whole grain container 22 is in cylindrical shape with the end.Whole grain container 22 is simultaneously non-mesh.It is contained in whole grain container 22
Broken container 21.Broken container 21 is configured in whole grain container 22.Broken container 21 is fixed on whole by frame (not shown) etc.
Grain container 22.Whole grain container driving portion (not shown) is connected on whole grain container 22.Whole grain container 22 is driven by whole grain container
Portion drives and rotates around third central axis J3.Whole grain container 22 is rotated around third central axis J3 together with broken container 21.
Whole grain container 22 has peripheral wall portion 22a and bottom wall part 22c.Peripheral wall portion 22a is in the cylindrical shape axially extended.Peripheral wall
Portion 22a is towards axial another side opening.Peripheral wall portion 22a has opening portion 22b in the end of the axial other side.Opening portion 22b is in circle
It is cyclic annular.Bottom wall part 22c blocks the axial side of peripheral wall portion 22a.The end of the axial side of bottom wall part 22c and peripheral wall portion 22a
Connection.Bottom wall part 22c is in disk-shaped.The plate face of bottom wall part 22c is towards axial direction, and on the direction orthogonal with third central axis J3
Extend.
The peripheral wall portion 22a of whole grain container 22 and the peripheral wall portion 21a of broken container 21 are in a manner of separating gap radially
Relatively.The bottom wall part 22c of whole grain container 22 and the bottom wall part 21c of broken container 21 phase in a manner of separating gap in the axial direction
It is right.The bottom wall part 21c of broken container 21 is configured to separate with the bottom wall part 22c of whole grain container 22.
The part positioned at lower side in the opening portion 22b inner circumferential of peripheral wall portion 22a is configured at the centre bit than bottom wall part 22c
Rest against the position of upside.That is, the lowest part of the inner circumferential of opening portion 22b is located at than bottom wall part 22c and third central axis J3
The upper position of cross section.According to the present embodiment, the lowest part in whole grain container 22 split shed portion 22b can be inhibited
The too low situation in position, so that it is guaranteed that the treating capacity of whole grain container 22.
The part positioned at lower side of the opening portion 22b of the peripheral wall portion 22a of whole grain container 22 is from downside by broken container 21
Peripheral wall portion 21a opening portion 21b positioned at lower side part cover.The lowest part position of the opening portion 22b of whole grain container 22
The position of front side is leaned in the lowest part of the opening portion 21b than broken container 21.According to the present embodiment, can inhibit across broken appearance
The prilling powder G of the mesh of device 21 falls to the outside of whole grain container 22.The yield of powder can be improved as a result,.
As shown in Fig. 6 B and Fig. 6 C, in the crushing device 30 of present embodiment, the granulation in broken container 21 is entered
The mesh that broken container 21 is passed through without broken little particle G in powder G, falls on the inner surface of whole grain container 22.That is, small
Particle G is moved to the part between broken container 21 and whole grain container 22 in the case where not being broken.It needs broken
Bulky grain G does not pass through the mesh of broken container 21 but remains in broken container 21, and with the rotation quilt of broken container 21
Net and crushing medium M pulverize.As shown in Figure 6 D, when bulky grain G is grinded up smaller, the particle G being grinded up passes through broken hold
The mesh of device 21, and fall on the inner surface of whole grain container 22.As illustrated in fig. 6e, on the inner surface of whole grain container 22 is fallen on
Grain G is rotated with the rotation of whole grain container 22, and curls glomeration.That is, the inside Gb due to exposing is wet, it is grinded up
Particle G be easy by turning in the inner surface of whole grain container 22 then curling glomeration.
The crushing device 30 of present embodiment can obtain following effect (fragmentation) by broken container 21: not make small
Grain G is broken, and keeps bulky grain G broken, to keep the size of particle unified.In addition, can be obtained by whole grain container 22 by particle G
Curl glomerate effect (whole grain effect).According to the present embodiment, due to that can inhibit for little particle G to be crushed, can inhibit
The generation of micropowder.In addition, the broken powder G of desired granular size can be obtained.Since bulky grain G is stuck in broken container 21
Mesh is simultaneously fallen after being provoked, therefore convenient for pulverizing, to improve crushing efficiency.The surface Ga of the prilling powder G of processing is in
Drying regime, therefore, powder are not easy to be attached to the net of broken container 21, to handle stabilization.Due to using crushing medium M, because
This processing time is shortened, so as to improve production efficiency.Since crushing medium M is in spherical, can inhibit and prilling powder G
Contact area, even if also powder can be inhibited to be attached to crushing medium M in the state that the inside Gb of prilling powder G is wet, from
And fragmentation is stablized.
In addition, the little particle G for not being grinded up and passing through the mesh of broken container 21 is pre- when being granulated by prilling granulator 20
It is first curled, and is overturn on the inner surface of whole grain container 22, to become spherical.In addition, being grinded up and passing through broken container
The particle G of 21 mesh is turned in the inner surface of whole grain container 22 then is curled glomeration.Overturning is curled in the above described manner
Particle G can inhibit to form cavity in inside.The apparent density of broken powder G can be improved as a result,.Since broken powder G can be improved
Apparent density, therefore can be shortened mold stroke when the compression forming of the subsequent handling in granulating system 10, so as to improve life
Produce efficiency.In addition, the particle of broken powder G is in spherical, therefore the mobility of the powder in mold when compression forming is stablized.Cause
This, can steadily improve the performance of the product obtained after compression forming.
In addition, in the present embodiment, third central axis J3 extends along relative to the inclined direction of vertical direction, therefore broken
Broken container 21 and whole grain container 22 become relative to the inclined posture of vertical direction.Lower part of the particle aggregation in broken container 21
(corner), so as to be efficiently crushed.Make lower part of the particle aggregation in whole grain container 22, so as to efficiently curl into
It is spherical.As shown in figure 5, the angle, θ 2 that third central axis J3 is inclined relative to horizontal is 30~60 °.Angle, θ 2 is 30 ° or more,
Therefore, it can ensure that the treating capacity of crushing device 30.Angle, θ 2 is 60 ° hereinafter, the crushing efficiency of broken container 21 therefore can be improved,
And the whole grain of whole grain container 22 acts on and stablizing.
In addition, in the present embodiment, the bottom wall part 21c of broken container 21 is configured to the bottom wall part with whole grain container 22
22c separation.Therefore, fragmentation not only can be obtained in the peripheral wall portion 21a of broken container 21, can be also obtained brokenly in bottom wall part 21c
Broken effect.Whole grain effect not only can be obtained in the peripheral wall portion 22a of whole grain container 22, can also obtain whole grain effect in bottom wall part 22c.
The character of the particle of broken powder G is stablized, so as to improve production efficiency.
In addition, the invention is not limited to embodiments above-mentioned, such as described below, this hair can not departed from
The change etc. of structure is carried out in the range of bright objective.
In embodiment above-mentioned, in prilling granulator 20, the first central axis J1 is along inclined relative to vertical direction
Direction extends, but the first central axis J1 can also extend along vertical direction.However, by making the first central axis J1 relative to vertical
Axis inclination, slurry and prilling powder are easily collected on the lower part of stirring container 11 and are improved treatment effeciency, therefore more
It is ideal.In addition, the second central axis J2 is set as parallel with the first central axis J1, but the second central axis J2 can not also be with the first center
Axis J1 is parallel.
In addition, the rotation center of paddle 12 is located at the position of rotation center on the lower than bottom wall part 11c, and be located at than
Vertical plane VP is closer to the position of the first direction of rotation T1, but is not limited to above structure.The rotation center of paddle 12
The position that the direction of rotation opposite with the first direction of rotation T1 is closer to than vertical plane VP can also be located at.The rotation of paddle 12
Turning center can also be located on vertical plane VP.In addition, the first direction of rotation T1 and the second direction of rotation T2 may be each other
Opposite direction of rotation.
In addition, paddle 12 has the first paddle 12a and the second paddle 12b, but it is not limited to above structure.It stirs
Mixing leaf 12 both can be one, or three or more.In addition, the first paddle 12a is paddle-like, but also not for paddle-like
It can.Second paddle 12b is propeller-like, but also may not be used for propeller-like.
In addition, heating device 14 heats stirring container 11 by the air of pressure fan 14a, but it is not limited to
State structure.Heating device 14 is also possible to such as set on the heater of peripheral wall portion 11a and bottom wall part 11c.In this case,
Shell 14b is not provided with also may be used.
In embodiment above-mentioned, in crushing device 30, third central axis J3 is along inclined relative to vertical direction
Direction extends, but third central axis J3 can also extend along vertical direction.However, by making third central axis J3 relative to vertical
Axis inclination, prilling powder G and crushing medium M broken container 21 it is online provoked after drop back into, prilling powder G and crushing medium
The frequency of exposure of M increases, so that fragmentation be made to be promoted.In addition, prilling powder is made to be easy to be gathered in whole grain container 22
Lower part, so that whole grain effect be made to be promoted.
Although not shown, but any in flank, protrusion and fixed blade can also be equipped in the inner surface of whole grain container 22
It is a.In this case, by overturning particle G on the inner surface of whole grain container 22 along multiple directions, to be easier to curl up
Bent glomeration.
In embodiment above-mentioned, granulating system 10 includes prilling granulator 20 and crushing device 30, but is not limited to
Above structure.Granulating system 10 also may include prilling granulator 20, grading plant (not shown) and crushing device 30.Grading plant
For in the process before 20 subsequent process of prilling granulator and crushing device 30.What grading plant was used to for prilling powder being classified
It is classified in process.That is, can also be arranged and prilling powder is sieved to and is shaved short grained classification process after granulating working procedure,
And the bulky grain that have passed through classification process is handled by broken process.
It in addition to this, can also be without departing from the scope of spirit of the present invention by aforementioned embodiments, variation and note
Each structure (structural element) combination illustrated in releasing etc., or also can be carried out structure it is additional, omit, replacement and other changes
More.In addition, the present invention is not limited by aforementioned embodiments, it is only protected by the following claims range restriction.
Claims (10)
1. a kind of crushing device characterized by comprising
Netted broken container, the broken container are in the tubular with the end extended along central axis, and for prilling powder and crushing
Medium enters；And
Whole grain container, the whole grain container are in the tubular with the end extended along the central axis, contain the broken container, and
Around the center axis rotation together with the broken container.
2. crushing device as described in claim 1, which is characterized in that
The central axis extends along relative to the inclined direction of vertical direction.
3. crushing device as claimed in claim 2, which is characterized in that
The bottom wall part of the broken container is configured to the bottom wall part interval with the whole grain container.
4. crushing device as claimed in claim 2, which is characterized in that
The opening portion inner circumferential of the peripheral wall portion of the broken container, be configured in than the broken container positioned at the part of lower side
Bottom wall part the upper position in center at.
5. crushing device as claimed in claim 3, which is characterized in that
The opening portion inner circumferential of the peripheral wall portion of the broken container, be configured in than the broken container positioned at the part of lower side
Bottom wall part the upper position in center at.
6. the crushing device as described in any one of claim 2~5, which is characterized in that
The opening portion inner circumferential of the peripheral wall portion of the whole grain container, be configured in than the whole grain container positioned at the part of lower side
Bottom wall part the upper position in center at.
7. crushing device as claimed in claim 2, which is characterized in that
The opening portion of the peripheral wall portion of the whole grain container, positioned at lower side part from downside by the peripheral wall of the broken container
The opening portion in portion, positioned at lower side part cover.
8. crushing device as claimed in claim 2, which is characterized in that
The angle that the central axis is inclined relative to horizontal is 30~60 °.
9. crushing device as described in claim 1, which is characterized in that
Any of flank, protrusion and fixed blade are equipped in the inner surface of the whole grain container.
10. crushing device as described in claim 1, which is characterized in that
The crushing medium is in spherical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-188039 | 2017-09-28 | ||
| JP2017188039A JP2019058898A (en) | 2017-09-28 | 2017-09-28 | Crushing device |
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|---|---|
| CN109570511A true CN109570511A (en) | 2019-04-05 |
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ID=65919621
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|---|---|---|---|
| CN201810876272.6A Withdrawn CN109570511A (en) | 2017-09-28 | 2018-08-03 | Crushing device |
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| CN (1) | CN109570511A (en) |
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| Publication number | Publication date |
|---|---|
| JP2019058898A (en) | 2019-04-18 |
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Application publication date: 20190405 |