JP2018012073A - Raw material crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a raw material crusher which is capable of pulverizing a raw material by crushing reliably in a short time.SOLUTION: A raw material crusher 1 is constituted by a device body 2 equipped with a traverse-mounted crushing chamber 3 formed of a cylindrical body and a driving device 9 that drives a rotary shaft 6 rotatably arranged at the center of the crushing chamber 3 in the axial direction. The rotary shaft 6 in the crushing center 3 is equipped with a plurality of wing members 7 provided to be vertical to the axial direction, the crushing chamber 3 being filled with many spherical crushed mediums. The wing member 7 is formed of a plurality of blades, and a plane of the blade in a rotation direction has a smooth plane 7g, or a plane in a rotation direction is configured to be have a striking plate 7f that has been smoothed, so that the raw material can be crushed reliably in a short time.SELECTED DRAWING: Figure 1

Description

The present invention relates to a raw material pulverizer.
More specifically, the present invention relates to a raw material raw material pulverization apparatus that can perform refinement by pulverization of raw material materials, surface modification of raw material materials, or reaction between raw material materials in a short time and with certainty.

  Conventionally, in the manufacturing industry that requires pulverization and grinding of various raw materials, known rolling mills such as rod mills and ball mills have been widely used as raw material pulverizers.

In such a pulverizing apparatus, a cylindrical body constituting the pulverizing chamber is filled with a large number of pulverizing media composed of rods or balls.
Therefore, after the raw material (the material to be crushed) is put into the cylindrical body, it is pulverized by an impact caused by the upward and downward movement of the raw material as the cylinder rotates, a frictional action with the pulverizing medium, or the like.

  An example of such a raw material pulverizer is disclosed in Japanese Patent Application Laid-Open No. 11-319606 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2015-020127 (Patent Document 2).

  Patent Document 1 proposes a ball mill that can effectively prevent powder from sticking without relying on a liquid medium or a lubricant.

This ball mill has a pulverization chamber composed of a substantially cylindrical inner peripheral surface into which an object to be crushed and a medium ball can be put, and a cylindrical body rotatable around a first axis, A ball mill having rotating blades rotatable around a biaxial core,
The first axis and the second axis extend in a lateral direction;
The inner peripheral surface of the pulverization chamber is provided with a protrusion composed of a first surface and a second surface, and a portion where the first surface and the inner peripheral surface intersect is a first boundary portion,
A portion where the second surface and the inner peripheral surface intersect is defined as a second boundary portion,
A portion where the first surface and the second surface intersect is a third boundary portion,
When viewed in a direction along the first axis, the first straight line connecting the first axis and the first boundary part, and the second straight line connecting the first axis and the second boundary part. The third boundary portion is positioned in the sandwiched region, and the third boundary portion is deviated to either one of the first straight line and the second straight line.

  On the other hand, Patent Document 2 proposes a dry media agitation type pulverizer that agitates and refines powder particles together with the pulverization media.

This dry media agitation type pulverizer is equipped with an agitator attached to a drive shaft located along an axis in a horizontal cylindrical pulverization container, and performs batch processing.
A supply valve is provided at a supply port that opens at the top of the pulverization vessel,
A screen and a discharge valve are provided at a discharge port opened at a lower portion of the pulverization container,
The supply valve includes a valve seat fixed to the supply port, and a valve body that is close to and separated from the valve seat,
The discharge valve includes a valve seat fixed to the discharge port, and a valve body that approaches and separates from the valve seat.

Japanese Patent Application Laid-Open No. 11-319606 (Claims 1, 1 and 2) Japanese Patent Laying-Open No. 2015-020127 (Claim 1, FIG. 1)

In the conventional raw material pulverizer, the structure itself is complicated, and in order to sufficiently pulverize the raw material, it is necessary to lengthen the processing time and bring the material into sufficient contact with the pulverizing medium. There was a problem that there was.
On the other hand, when the treatment time is lengthened, there is a problem that over-pulverization occurs and the yield of the product decreases.

The ball mill disclosed in Patent Document 1 is improved in that powder can be effectively prevented from sticking without relying on a liquid medium or a lubricant.
However, further improvement is required in that the raw material is processed in a short time and reliably.

In the dry media agitation type pulverizer disclosed in Patent Document 2, since the agitator attached to the drive shaft is a rod-like one, it is difficult to give sufficient motion to the pulverization media.
Therefore, further improvement is required in that the entire inside of the pulverization container receives a large kinetic energy from the pulverization medium.

In view of the present situation, an object of the present invention is to provide a raw material raw material pulverization apparatus that enables efficient refinement by pulverization of a raw material material in a short time.

In order to achieve the above object, the invention according to claim 1 according to the present invention provides
It is composed of an apparatus main body comprising a horizontal pulverization chamber made of a cylindrical body, and a drive device that drives a drive shaft that is rotatably arranged along the axial direction at the center of the pulverization chamber,
In the drive shaft located in the grinding chamber,
A blade member composed of a plurality of blades is provided to be perpendicular to the axial direction,
The surface in the rotational direction of the blade is
A striking plate having a smooth surface or a smooth surface in the rotational direction at least at its tip portion;
In the grinding chamber,
A raw material raw material pulverizing apparatus characterized by being filled with a large number of pulverizing media.

The invention according to claim 2 of the present invention is
In the raw material pulverizing apparatus according to claim 1,
The blade member is
A blade member made up of a plurality of blades is a unit, and a plurality of blade members are detachably provided so as to be perpendicular to the drive shaft.

The invention according to claim 3 of the present invention is
In the raw material pulverization apparatus according to claim 1 or 2,
The device body is
A jacket for cooling or heating is attached to the outside thereof.

The invention according to claim 4 of the present invention is
In the raw material grinding apparatus according to any one of claims 1 to 3,
The grinding chamber is
A large number of protrusions are formed on the outer peripheral surface.

The invention according to claim 5 of the present invention is
In the raw material pulverizing apparatus according to claim 3,
The jacket is
A number of protrusions are formed inside it,
The protrusion is
The tip portion is spherical and is formed in a ring shape on the inner peripheral surface of the jacket.

The invention according to claim 6 of the present invention is
In the raw material pulverizing apparatus according to claim 4 or 5,
The protrusion is
A plurality of the apparatus main bodies are provided along the longitudinal direction of the apparatus main body.

The invention according to claim 7 of the present invention is
In the raw material pulverizing apparatus according to any one of claims 1 to 6,
The rotational speed of the blade member is
It is a raw material pulverizer characterized by a peripheral speed of 6 to 20 m / s.

The invention according to claim 8 of the present invention provides
In the raw material pulverizing apparatus according to any one of claims 1 to 7,
The thickness of the blade is
It is characterized by being 6 to 50 mm.

The invention according to claim 9 of the present invention provides
In the raw material pulverizing apparatus according to claim 1,
The grinding medium is
The pulverization chamber is filled in an amount of 20 to 40% of the capacity of the pulverization chamber.

The invention according to claim 10 of the present invention provides
In the raw material pulverizing apparatus according to claim 1,
The drive shaft is
It is hollow and is configured such that cold water or hot water flows through the inside as a flow path.

A material raw material pulverization apparatus according to the present invention drives an apparatus main body having a horizontal pulverization chamber formed of a cylindrical body, and a drive shaft that is rotatably disposed along the axial direction at the center of the pulverization chamber. It consists of a drive device.
The drive shaft in the grinding chamber includes a plurality of blade members provided so as to be perpendicular to the axial direction, and the spherical grinding chamber is filled with a number of spherical grinding media.

The blade member is composed of a plurality of blades, and a surface in the rotational direction of the blade has a smooth surface at least at a tip portion thereof, or includes a striking plate whose surface in the rotational direction is smoothed. It is configured.
In this raw material pulverizer, when the raw material and the pulverization medium are rotated and stirred by the blade member in the pulverization chamber, the pulverization medium easily collides with the smooth surface. Thus, the grinding media are easily blown off and diffused, and collision between the grinding media is likely to occur.
Accordingly, kinetic energy (gravitational acceleration) due to pinching and collision between the pulverizing media is likely to occur, and higher kinetic energy can be obtained. Therefore, using this kinetic energy, the raw material can be used in a shorter time. And it can grind | pulverize reliably.

In particular, according to this raw material raw material pulverization apparatus, not only miniaturization by raw material raw material pulverization but also surface modification of raw material raw materials and reaction between raw material raw materials can be performed in a short time and reliably. .
Therefore, the efficiency of these processes can be greatly improved.

  Further, the blade member attached to the drive shaft is constituted by a predetermined number of blades, and the blade member is used as one unit, and a plurality of blade members are detachably provided so as to be perpendicular to the drive shaft. When a part of the blade member is damaged, it is possible to easily repair by replacing only the unit including the damaged blade member.

  Furthermore, in this raw material pulverization apparatus, the pulverization chamber area is increased by providing a large number of protrusions on the outer peripheral surface of the pulverization chamber, so that the pulverization chamber can be cooled more quickly. Thus, the efficiency during pulverization, surface modification, and reaction can be achieved.

  For the blade member, the rotational speed is set to 6 to 20 m / s at the peripheral speed, and / or the thickness of each blade constituting the blade member is set to 6 to 50 mm, whereby the raw material is stirred and mixed, pulverized, etc. In this case, it is possible to generate a sufficient impact force, and it is possible to further increase the efficiency of the stirring and mixing and pulverization.

In this raw material pulverization apparatus, the temperature inside the pulverization chamber can be kept constant by configuring the drive shaft to be hollow and flowing cold water or hot water through the interior of the drive shaft. As a result, the efficiency during pulverization, surface modification, and reaction can be further increased.

It is a schematic explanatory drawing which shows an example of the raw material raw material grinding | pulverization apparatus concerning this invention. It is sectional drawing which shows an example of the grinding | pulverization chamber of the raw material raw material grinding | pulverization apparatus concerning this invention. It is a cross-sectional enlarged view of the crushing apparatus shown in FIG. It is a schematic explanatory drawing which shows an example of the blade member which comprises the raw material raw material grinding | pulverization apparatus concerning this invention. It is a schematic explanatory drawing which shows an example of the principal part of the blade member shown in FIG. It is a schematic explanatory drawing which shows the other example of a blade member.

Hereinafter, an example of an embodiment of a raw material pulverizing apparatus according to the present invention will be specifically described with reference to the accompanying drawings.
In addition, this invention is not limited only to a following example, A various change can be added in the range which does not change the summary of this invention.

  As shown in FIG. 1, a raw material crushing apparatus 1 according to the present invention is rotated along an axial direction at the center of the crushing chamber 3 with an apparatus body 2 having a horizontal crushing chamber 3 made of a cylindrical body. It is comprised from the drive device 9 for driving the drive shaft 6 arrange | positioned freely.

The crushing chamber 3 is made of a wear-resistant metal material such as stainless steel or a ceramic lining material.
As shown in FIGS. 1 and 2, the pulverization chamber 3 has an inlet having a detachable cap, specifically, a material material or pulverization medium that is an object to be pulverized. A plurality of 3a are arranged at a required interval.
On the other hand, a discharge port 3b that opens downward is provided on the outer periphery of the lower portion in order to discharge the pulverized raw material and pulverization medium.
In this embodiment, the input port 3a and the discharge port 3b are provided separately above and below the crushing chamber 3, respectively, but only one side is opened so as to serve as the input port 3a and the discharge port 3b. A part may be provided.
Further, in this embodiment, a mesh net of a required size is attached to the discharge port 3b, through which the pulverized raw material passes but the pulverization medium does not pass.

  In this embodiment, the pulverizer 1 continuously feeds the raw material from the inlet 3a provided in the upper part of the pulverizing chamber 3, and continuously supplies the processed material from the outlet 3b provided in the lower part. Since it is configured to discharge, processing such as pulverization can be performed continuously.

In this embodiment, the crushing chamber 3 is configured such that the ratio of the inner diameter to the length is 1: 1 to 1: 5.
The ratio between the inner diameter and the length is preferably 1: 1 to 1: 1.3 when performing a so-called batch-type pulverization process in which a predetermined amount of raw material is pulverized in a predetermined processing time. .
In addition, when the raw material is continuously charged and pulverization is performed, the ratio is preferably 1: 1.5 to 1: 3.

In the raw material crushing apparatus 1 according to the present invention, the crushing chamber 3 can be configured to be rotatable or rotatable in the circumferential direction.
With this configuration, the crushing chamber 3 can be rotated or rotated when attaching and detaching the cap and the mesh net, so that the attachment and detachment is easy.
Further, when the processed material is discharged, the processed material is clogged in the mesh network, and wear of the mesh network and its surroundings due to rotation / contact of the blade during operation is prevented. it can.
The crushing chamber 3 may be rotated or rotated using a known driving device such as an electric motor or while the driving shaft 6 is driven.
The rotation direction may be the same as the rotation direction of the drive shaft 6 or may be opposite.

As shown in FIG. 3, the apparatus main body 2 includes a jacket 8 for cooling or heating via a reinforcing member 3 g outside the grinding chamber 3.
In this embodiment, a plurality of ribs 3f, 3f,... In the circumferential direction are formed on the outer peripheral surface of the grinding chamber 3 along the axial direction, thereby increasing the surface area and enabling faster cooling inside thereof. It is configured to increase the efficiency during pulverization, surface modification, and reaction.
In addition, by forming a large number of arc-shaped protruding portions protruding inside on the inner peripheral surface of the jacket 8, or a plurality of protruding portions protruding upward on the outer peripheral surface of the crushing chamber 3 are formed. Thus, the same effect as described above can be obtained.
For example, a plurality of protrusions having a spherical tip can be formed on the inner peripheral surface of the jacket 8 in a ring shape along the longitudinal direction of the apparatus main body 2.

That is, in FIG. 3, an inlet 3d and an outlet 3e of a cooling medium such as cooling water or a heating medium such as heating water are formed on the outer peripheral surface of the jacket 8 for cooling or heating. In addition, a flow path through which the cooling medium or heat medium flows is formed between the outer peripheral surface of the pulverization chamber 3 and the inner peripheral surface of the cooling or heating jacket 8. The medium is configured to flow.
Accordingly, it is possible to cool or heat faster in the interior, and to increase the efficiency during pulverization, surface modification, and reaction.
At that time, when a plurality of the ribs 3f are formed along the axial direction on the outer peripheral surface of the crushing chamber 3, though not shown, the ribs 3f penetrate the side surfaces of the ribs 3f as flow paths for the cooling medium or the heat medium. By forming the mouth, the cooling medium or the heat medium may be configured to flow throughout the flow path.

Furthermore, as shown in FIG. 2, the crushing chamber 3 is provided with a vent 3c having a cap communicating with the inside thereof.
Therefore, it is possible to further increase the efficiency during pulverization, surface modification, and reaction by introducing an inert gas from the vent 3c or sucking it into a vacuum state.

At the center of the crushing chamber 3, as shown in FIG. 1, a drive shaft 6 of a drive device 9 operated by the motor 10 is rotatably arranged along the axial direction.
In this embodiment, bearings 4 and 5 are disposed on the front and rear side surfaces of the crushing chamber 3, respectively, and the drive shaft 6 is rotatably supported between the bearings 4 and 5.
The drive shaft 6 rotates when the rotational power from the drive shaft 9 a of the drive device 9 is transmitted via the speed reducer 11 and the joint gear 12.

In this embodiment, the drive shaft 6 is hollow, and is configured such that cold water or hot water flows through the inside as a flow path 6a.
By adopting such a configuration, the temperature in the pulverization chamber 3 can be kept constant, so that the efficiency during pulverization, surface modification, and reaction can be further increased.

  As shown in FIGS. 2 and 4, a blade member 7 composed of a plurality of blades is detachably attached to the drive shaft 6 in the apparatus main body 2 with a key or the like so as to be perpendicular to the axial direction. It has been.

In the present invention, the surface in the rotational direction of the blade is configured such that at least a tip portion thereof, for example, a range of 10 to 100 mm is smoothed to form a smooth surface.
Therefore, when the raw material and the grinding medium are rotated and stirred by the blade member 7 in the grinding chamber 3, the grinding medium easily collides with the smooth surface. It is easily flipped and diffused, and collision between the grinding media is likely to occur.

In this embodiment, as shown in FIG. 5, the surface of the blades 7a, 7b, 7c is smoothed by smoothing the surface of the rotational direction R as shown in FIG. A striking plate 7f having a surface 7g is provided by, for example, build-up welding.
Even in such a configuration, as described above, the pulverization medium is easily blown off and diffused by collision with the smooth surface 7g, and collision between the pulverization media is likely to occur.
Similarly to the above, the striking plate 7f can also be provided in at least the tip portion of the blade 7a, 7b, 7c in the rotational direction R, for example, in the range of 10 to 100 mm.
The striking plate 7f is preferably made of an anti-wear material made of wear-resistant steel such as stellite or colmonoy to prevent wear.
At that time, the thickness of the striking plate 7f is preferably about 5 to 20 mm.

  The size of the smooth surface can be appropriately selected according to the size of the pulverization chamber and the like, but is preferably 200 mm long × 50 mm wide to 10 mm long × 5 mm wide.

The blade member 7 and the blades 7a, 7b, and 7c constituting the blade member 7 are appropriately selected depending on the selected raw material since there are no particular restrictions on the material.
Therefore, for example, a metal material such as stainless steel, or a ceramic material such as alumina, zirconia, or other silicon nitride can be selected.
In addition, generation | occurrence | production of the metal powder by abrasion can be suppressed by comprising the said blade member 7 and the braid | blade 7a, 7b, 7c which comprises this with ceramic materials, such as an alumina, a zirconia, and silicon nitride.

In this embodiment, as shown in FIG. 4, the blade member 7 has three blades 7a, 7b and 7c having the same length as one unit, and five units are connected as shown in FIG. Thus, each unit can be replaced.
By adopting such a configuration, when a part of the blade member 7 is damaged during use, the unit can be easily repaired by replacing only the unit including the damaged blade member. .
In this embodiment, the lengths and thicknesses of the three blades are all the same. However, the lengths are not particularly limited, and all of them may not be the same.

The blade member 7 rotates as the drive shaft 6 including the blade member 7 rotates.
At that time, although the rotational speed of the blade member 7 depends on the raw material to be processed, for example, the peripheral speed is 6 to 20 m / s, preferably the peripheral speed is 6 to 14 m / s.
When the peripheral speed is slower than the above-mentioned peripheral speed of 6 m / s, there is a tendency that high kinetic energy due to the impact force does not occur. When the peripheral speed is higher than 20 m / s, the grinding media described later rotate together. Therefore, there is no tendency for the crushing media to collide with each other and a sufficient impact force does not tend to occur.
In addition, when the said blade member 7 is comprised with a metal raw material, the rotational speed is more preferably 8-13 m / s at a circumferential speed.

The thickness of the blades (7a, 7b, 7c) constituting the blade member 7 is preferably 6 to 50 mm, more preferably 6 to 25 mm.
When the thickness is less than 6 mm, each blade tends to be damaged. When the thickness exceeds 50 mm, a larger driving force is required to rotate the drive shaft 6, and the motor and the drive shaft Since a large load is applied, the efficiency of pulverization or the like tends to deteriorate.

The interval (gap) between the edge of the blade (7a, 7b, 7c) constituting the blade member 7 and the inner periphery of the crushing chamber 3 is preferably about 10 to 100 mm, more preferably about 10 to 30 mm. More preferably, it is about 10-15 mm.
By adopting such a configuration, the raw material can be effectively and / or efficiently pulverized, surface-modified, and reaction between the raw materials can be performed.

  The blade member 7 is mounted on the drive shaft 6 and is a unit obtained by combining a predetermined number of blades with different directions (angles).

As shown in FIG. 4, each of the blades 7a, 7b, 7c constituting the blade member 7 is formed with a through hole 7d through which the drive shaft 6 penetrates. At the position of, a notch 7e formed by notching outward is provided.
Further, since a protrusion is formed on the outer periphery of the drive shaft 6 along the axial direction, the blade member 7 is fixed to the drive shaft 6 by fitting the protrusion with the notch 7e. be able to.
At that time, the direction of each blade can be changed by changing the position of the notch 7e for each blade.

In this embodiment, as shown in FIG. 4, the blade member 7 is composed of three blades 7a, 7b, 7c. The number of blades or the angle between the blades is the size of the crushing chamber. It can be appropriately selected depending on the size.
Therefore, as shown in FIG. 6, it can be configured by two blades 7a and 7b.
The number of blades or the angle between the blades is preferably 2 to 24 (that is, the angle between each blade is 180 ° to 15 °), more preferably 2 to 12 (that is, the angle between each blade is 180 ° to 30 °). °).

The grinding chamber 3 is filled with a large number of balls (not shown) as a grinding medium.
This ball is composed of a sphere of a required size, and is composed of a ceramic material such as alumina, zirconia, or silicon nitride, or a metal material having wear resistance.
In addition, when the said ball | bowl is comprised with a ceramic raw material, generation | occurrence | production of the metal powder by abrasion is suppressed.
In this embodiment, the ball has a diameter of 5 mm, but may have a diameter of about 3 to 15 mm.

  The filling amount of the balls may be appropriately selected according to the raw material, but is preferably 20 to 40%, more preferably 30 to 40% with respect to the capacity of the grinding chamber 3.

  A mechanism for pulverizing the raw material using the raw material pulverizing apparatus 1 will be described.

When the raw material is pulverized, the jacket 8 is used to introduce heating water or cooling water into the apparatus main body 2 from the inflow hole 3d, and the apparatus main body 2 is heated or cooled.
Next, after supplying a predetermined amount of balls and raw materials as pulverization media into the pulverization chamber 3 from the input port 3a provided in the apparatus main body 2, the motor 10 is started to drive the drive device 9. The blade 7a, 7b, 7c is rotated by operating and rotating the drive shaft 6.

  When the drive shaft 6 starts to rotate, the raw material is rotated and stirred by the blades 7a, 7b, and 7c in the pulverizing chamber 3, but the balls filled in the pulverizing chamber 3 are also Rotating and stirring.

At that time, the ball surely collides with the smooth surface 7g of the tip portion of each blade 7a, 7b, 7c constituting the blade member 7 rotating at high speed, so that it is blown off and diffused, and high It collides with each other at a frequency to generate an impact force and generate a large gravitational acceleration (200 to 300 G).
As a result, the raw material is crushed by receiving the impact force in addition to being pinched between the balls.

  Therefore, according to the raw material pulverization apparatus 1 according to the present invention, high kinetic energy is easily generated due to the impact force, and pulverization can be performed using the kinetic energy. It is possible to reliably perform the pulverization process in 1/5 to 1/20 of the raw material pulverizer.

  Furthermore, the raw material pulverizing apparatus 1 mainly has an impact force caused by collision between pulverizing media, and does not rub the pulverizing media by stirring as in a bead mill, but as in a ball mill or a vibration mill. Since the grinding medium is not rubbed by rotation of the grinding chamber (container) or the ball, there is little friction between the grinding medium and the inner peripheral surface of the grinding chamber 3, and the occurrence of wear on this inner peripheral surface is small. .

In addition, about the collection | recovery of the pulverized raw material, it can carry out by a well-known method.
For example, the pulverized raw material can be sucked with a blower and collected with a device for collecting and separating (for example, a cyclone).

  In this embodiment, an example of performing pulverization processing such as mechanical milling using the raw material pulverization apparatus has been shown, but mechanical surface modification and reaction processing such as mechanical alloying and mechanochemical are also performed. Can be applied.

  In this embodiment, the raw material pulverization apparatus is used as a dry raw material pulverization apparatus. However, the raw material pulverization apparatus can be applied to a wet raw material pulverization apparatus.

In the present invention, the raw material is not particularly limited.
For example, Mg, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Gb, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pb, Ag, Cd, In, Sn, Ba, La, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Tl, and Gd, and a composite of two or more thereof, and oxides thereof, It can be selected from nitride, carbide and the like.

The raw material pulverization apparatus according to the present invention makes it possible to perform refinement by pulverization of the raw material, surface modification of the raw material, or reaction between the raw materials in a short time.
Therefore, it is highly likely to be used in industries that manufacture or handle powder products.

DESCRIPTION OF SYMBOLS 1 Raw material crusher 2 Apparatus main body 3 Crushing chamber 3a Input port 3b Discharge port 3c Vent 3d Cooling water or warm water inflow port 3e Cooling water or warm water discharge port 3f Rib 3g Reinforcement member 4,5 Bearing 6 Drive shaft 6a Flow path 7 Blade member 7a to 7c Blade 7d Through hole 7e Notch 7f Strike plate 7g Smooth surface 8 Jacket 9 Drive unit 10 Motor 11 Reducer 12 Joint gear R Rotation direction

Claims (10)

It is composed of an apparatus main body comprising a horizontal pulverization chamber made of a cylindrical body, and a drive device that drives a drive shaft that is rotatably arranged along the axial direction at the center of the pulverization chamber,
In the drive shaft located in the grinding chamber,
A blade member composed of a plurality of blades is provided to be perpendicular to the axial direction,
The surface in the rotational direction of the blade is
A striking plate having a smooth surface or a smooth surface in the rotational direction at least at its tip portion;
In the grinding chamber,
A raw material pulverizing apparatus, which is filled with a large number of pulverizing media. The blade member is
2. The raw material raw material pulverizing apparatus according to claim 1, wherein a blade member comprising a plurality of blades is a unit, and the plurality of blade members are detachably provided so as to be perpendicular to the drive shaft. The device body is
The raw material pulverizing apparatus according to claim 1, wherein a jacket for cooling or heating is attached to the outside thereof. The grinding chamber is
The raw material raw material crushing apparatus according to any one of claims 1 to 3, wherein a large number of protrusions are formed on the outer peripheral surface. The jacket is
A number of protrusions are formed inside it,
The protrusion is
4. The raw material pulverizing apparatus according to claim 3, wherein the tip is spherical and is formed in a ring shape on the inner peripheral surface of the jacket. The protrusion is
6. The raw material pulverizing apparatus according to claim 4, wherein a plurality of the raw material pulverizing apparatuses are provided along a longitudinal direction of the apparatus main body. The rotational speed of the blade member is
The raw material pulverization apparatus according to claim 1, wherein the pulverization apparatus has a peripheral speed of 6 to 20 m / s. The thickness of the blade is
It is 6-50 mm, The raw material raw material grinding | pulverization apparatus in any one of Claims 1-7 characterized by the above-mentioned. The grinding medium is
The raw material raw material pulverization apparatus according to claim 1, wherein the raw material raw material pulverization apparatus is filled in an amount of 20 to 40% of a capacity of the pulverization chamber. The rotation axis is
2. The raw material raw material pulverizing apparatus according to claim 1, wherein the raw material raw material pulverizing apparatus is hollow and configured so that cold water or hot water flows through the inside as a flow path.

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