JP5075584B2 - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crushing apparatus with structure capable of crushing particulate crushing objects into powder with preferable efficiency, and capable of preferably suppressing intrusion of foreign matter into crushed matter. <P>SOLUTION: Air in an inner space 141 of a crushing space member 140 is swirled by rotation of a rotor unit 120 and by air introduced from a side face air suction part 150, and the particulate crushing objects P are discharged thereto from the rotating rotor unit 120 by centrifugal force. The particulate crushing objects P are made to collide with one another by the fluidizing layer of swirling air to be crushed into powder. The rotor unit 120 discharges the crushing objects P and forms the swirling fluidizing layer. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a pulverization apparatus for pulverizing a granular material to be pulverized into powder.

  Currently, there are various methods and apparatuses for obtaining a powder by pulverization as one of methods for producing a pulverized product. Conventionally known crushing techniques include an airflow crusher. This airflow type pulverizer is accelerated by a jet airflow and collides and pulverizes particles, and has a built-in classifier that separates coarse powder and fine powder.

  In this pulverization method, if the collision pulverization of the particles by the jet stream is insufficient, the particles stay in the pulverization chamber and are pulverized again by the jet stream (see, for example, Patent Document 1) to be pulverized again by a classifier.

  In addition, there is a pulverization apparatus that minimizes the flow loss of the jet stream by a method of accelerating the jet stream and the pulverized material together. As such a pulverizing apparatus, there is an apparatus that supplies a gas jet and pulverized material into a pulverizing chamber at the same time (see, for example, Patent Document 2).

Furthermore, various devices for increasing the flow rate of the pulverized product have been proposed (see, for example, Patent Documents 3 and 4).
JP 11-290711 A Japanese Patent Laid-Open No. 11-070340 JP 2004-255323 A JP 2000-140675 A Japanese Patent Laid-Open No. 2004-237251

  However, in the pulverization processing apparatus of Patent Document 1, coarse powder can be extracted in view of excessive increase of staying particles to be pulverized. In other words, it may be difficult to reliably pulverize the object to be pulverized without any problem.

  Further, in the method described in Patent Document 2, since the gas jet and the pulverized product are supplied into the pulverization chamber at the same time, the gas flow path, the flow rate, etc. It is necessary to consider. For this reason, stable control is difficult considering the state change of the pulverized product.

  In the pulverization apparatuses described in Patent Documents 3 and 4, it is expected that the flow rate of the pulverized product fluctuates due to the influence of the size and specific gravity of the raw material, which hinders the pulverization efficiency. Furthermore, in the pulverization apparatus described in Patent Documents 1 and 5 and the like, the pulverized material adheres to the wall surface and hinders pulverization.

  The present invention has been made in view of the problems as described above, and can pulverize a granular material to be pulverized with good efficiency, and it is favorable that foreign matters are mixed into the pulverized material to be pulverized. The present invention provides a pulverization apparatus having a structure that can be suppressed to a low level.

  The pulverization processing apparatus of the present invention is a pulverization processing apparatus for pulverizing a granular material to be pulverized, wherein an inner side surface is formed in a conical shape in which the axial direction is substantially parallel to the vertical direction and the lower part is sharp. The separator cone that discharges the material to be crushed from the upper opening through the lower opening, and the discharge port that discharges the material to be crushed while the introduction port to which the material to be crushed is supplied from the separator cone is formed in the center of the upper surface Is a hollow structure rotor unit formed on the outer surface, a rotor drive mechanism that rotates the rotor unit by a rotation shaft whose axial direction is substantially parallel to the vertical direction, and rotation whose axial direction is substantially parallel to the vertical direction. A hollow pulverized space member in which the rotor unit is disposed in the body-like internal space, and gas is introduced into the internal space from the inner surface of the pulverized space member in a direction synchronized with the moving direction of the outer surface of the rotor unit. The surface suction part, the flow path forming member that forms the transfer flow path from the upper part of the grinding space member to the upper opening of the separator cone, and the object to be crushed from the vicinity of the upper part of the separator cone by suction with a negative pressure. And a classification mechanism for classifying the derived material to be crushed at the upper part of the separator cone.

  Therefore, in the pulverizing apparatus of the present invention, the granular material to be supplied to the inlet at the center of the upper surface of the rotor unit rotating from the separator cone is separated from the discharge port on the outer surface of the rotor unit by the centrifugal force. Released inside. The gas in the internal space of the pulverization space member swirls due to the rotation of the rotor unit and the gas introduced from the side air intake portion. Therefore, the object to be pulverized released from the rotating rotor unit by centrifugal force flows in the swirling gas fluidized bed in the internal space of the pulverizing space member. At this time, the granular objects to be crushed collide with each other and are pulverized. Since the gas is sucked from the vicinity of the upper part of the separator cone by the product derivation mechanism, the pulverized object to be crushed is transferred from the transfer flow path to the vicinity of the upper part of the separator cone by the air flow rising while turning. At this time, since the object to be pulverized is classified from the sucked gas by the classification mechanism, the object to be pulverized which is pulverized into powder is derived as a product, and the granular object to be pulverized is separated from the separator cone to the rotor. Re-supplied to the unit.

  The various components of the present invention do not necessarily have to be independent of each other. A plurality of components are formed as a single member, and a single component is formed of a plurality of members. It may be that a certain component is a part of another component, a part of a certain component overlaps with a part of another component, or the like.

  In addition, the term granular in the present invention means, for example, a size that falls in a gas by its own weight, but is transferred by a flowing gas and pulverized by mutual collision, and more specifically. , Meaning that the particle size is on the mm level.

  The powdery state means, for example, a size in which granular materials to be crushed by mutual collision due to gas flow, and more specifically, means that the particle size is on the μm level. doing. The granular and powdery sizes are sizes classified by each other by a classification mechanism.

  In the pulverization apparatus of the present invention, the gas in the internal space of the pulverization space member is swirled by the rotation of the rotor unit and the gas introduced from the side air intake portion, and the granular object to be crushed by centrifugal force from the rotating rotor unit. discharge. For this reason, the granular objects to be crushed can collide with each other by the swirling gas fluidized bed so as to be pulverized. Since the to-be-ground material is discharged by the rotor unit and the swirling fluidized bed is formed, the to-be-ground material can be pulverized with good efficiency. Furthermore, since the gas is introduced from the side air intake portion in a direction synchronized with the rotation of the rotor unit, a fluidized bed that swirls with better efficiency can be formed. Moreover, since the objects to be pulverized are pulverized by mutual collision, wear of the pulverization processing apparatus can be suppressed. For this reason, it can suppress favorably that a foreign material mixes in the grind | pulverized to-be-ground material, and the maintainability of a grinding | pulverization processing apparatus can also be reduced.

  An embodiment of the present invention will be described below with reference to the drawings. The pulverization processing apparatus 100 of the present embodiment is used to pulverize the granular material P to be pulverized.

  For this reason, as shown in FIG. 1, the pulverizing apparatus 100 has an inner surface formed in a conical shape in which the axial direction is substantially parallel to the vertical direction and the lower part is sharp, and the pulverized object P is fed from the upper opening. Is formed at the center of the upper surface and a discharge port for discharging the material P is formed on the outer surface. The rotor unit 120 having a hollow structure, the rotor driving mechanism 130 for rotating the rotor unit 120 by a rotating shaft 131 whose axial direction is substantially parallel to the vertical direction, and a rotating body whose axial direction is substantially parallel to the vertical direction The hollow crushing space member 140 in which the rotor unit 120 is disposed in the cylindrical internal space 141 and the direction synchronized with the moving direction of the outer surface of the rotor unit 120 The side air intake portion 150 for introducing air, which is a gas, from the inner side surface of the pulverization space member 140 to the internal space 141, and the flow that forms the transfer channel 161 from the upper part of the pulverization space member 140 to the upper opening of the separator cone 110. A path forming member 160, a product derivation mechanism 170 that draws out the pulverized material P from the vicinity of the upper portion of the separator cone 110 together with air under a negative pressure, and classifies the derived pulverized material P at the upper portion of the separator cone 110. And a classification mechanism 180.

  The pulverization apparatus 100 also includes a bottom surface intake part 190 that introduces air into the internal space 141 from the bottom surface of the pulverization space member 140. Further, a preliminary forming member 200 that forms a preliminary flow path 201 outside the outer surface from the periphery of the upper opening of the separator cone 110 to the periphery of the lower opening, and a flow path opening / closing mechanism 210 that closes the preliminary flow path 201 so as to be freely opened and closed. And also have. Of course, it also has the raw material introduction part 220 which introduces the to-be-ground material P supplied from the outside into the upper opening of the separator cone 110.

  More specifically, as shown in FIGS. 2 and 3, the rotor unit 120 includes a centrifugal blade 124 in which the object P is accumulated and forms a self zone 123. In the rotor unit 120, the centrifugal blades 124 are formed in a three-pronged shape.

  For this reason, three discharge ports 122 are opened in the rotation direction on the outer side of the rotor unit 120. And since the inner surface of the centrifugal blade 124 is formed in a concave shape in which the material P to be stagnate, a self zone 123 is formed here.

  The side suction part 150 is composed of a pair of cylindrical pipes connected to the cylindrical internal space 141 of the grinding space member 140 from the outside in the tangential direction. The air in the internal space 141 of the pulverization space member 140 is sucked by the product derivation mechanism 170 with a negative pressure.

  For this reason, the side air intake unit 150 introduces outside air into the internal space 141 of the pulverization space member 140 at a predetermined speed by the negative pressure described above. Note that an air filter (not shown) that removes dust from the outside air is attached to the side surface intake portion 150.

  As shown in FIG. 4, the bottom suction unit 190 has an opening hole 191 formed in an annular shape on the bottom surface of the pulverization space member 140, and is disposed in the opening hole 191 to allow air to pass therethrough with a predetermined flow resistance. And a filter member 192 that does not allow the material P to be pulverized having a predetermined particle diameter to pass therethrough.

  The filter member 192 includes a nonwoven fabric made of at least one short fiber of a porous material, vinylon, and polyester, and a screen that is laminated on the nonwoven fabric and has an aperture ratio of 5 to 20% (not shown).

  As shown in FIG. 5, the classification mechanism 180 includes a classification blade 181 and a classification drive mechanism (not shown) that rotationally drives the classification blade 181 with a rotation shaft 182 whose axial direction is substantially parallel to the vertical direction. . This classifying drive mechanism rotationally drives the classifying blade 181 in the same direction as the rotor unit 120.

  As shown in FIG. 6, the classifying blade 181 has a large number of blades arranged radially. The outer peripheral part is formed in the shape of a truncated cone having a bottom opening. For this reason, the classifying blade 181 transfers the granular material P to the outside by centrifugal force by rotation and also transfers it downward at the frustoconical outer periphery, but the powdered material P is removed from the gap between the blades. Pass upward.

  As shown in FIG. 1, the separator cone 110 is formed with a constant plate thickness. For this reason, the outer surface is also formed in a conical shape in which the axial center direction is substantially parallel to the vertical direction and the lower part is sharp. A preliminary flow path 201 is formed on the outer surface of the separator cone 110.

  The channel opening / closing mechanism 210 is formed in a cylindrical shape that is supported so as to be slidable in the vertical direction, and is disposed at a position where the preliminary channel 201 and the transfer channel 161 meet around the upper opening of the separator cone 110. Has been.

  At the position where the transfer channel 161 communicates with the upper opening of the separator cone 110, a large number of airflows flowing from the transfer channel 161 to the upper portion of the separator cone 110 are deflected in the same direction as the rotation direction of the rotor unit 120. A rectifying plate 111 is disposed.

  In the pulverization apparatus 100 of the present embodiment, for example, the rotor unit 120 is formed with an outermost diameter of 300 mm. The rotor unit 120 is rotationally driven at 3000 to 6000 rpm, for example.

  The raw material which is the granular material to be pulverized P has, for example, an average particle diameter of 5 mm, and is almost entirely included in a particle diameter of 1 mm to 10 mm. Moreover, the product which is the powdery material P to be pulverized has, for example, a maximum particle diameter of 48 μm and an average particle diameter of 10 to 15 μm.

  In the above-described configuration, in the pulverizing apparatus 100 of the present embodiment, the granular material P is supplied from the raw material introduction unit 220 to the upper opening of the separator cone 110. Then, the material P to be crushed is supplied from the separator cone 110 to the inlet 121 at the center of the upper surface of the rotating rotor unit 120.

  The pulverized material P is discharged into the pulverized space member 140 from the discharge port 122 on the outer surface by the centrifugal force of the rotating rotor unit 120. The air in the internal space 141 of the pulverization space member 140 is swirled due to the rotation of the rotor unit 120 and the air introduced from the side intake portion 150.

  Therefore, the material P to be pulverized released from the rotating rotor unit 120 by centrifugal force flows in the rotating fluidized layer of air in the internal space 141 of the pulverization space member 140. At this time, the granular materials P collide with each other and are pulverized into powder.

  Since air is sucked from the vicinity of the upper portion of the separator cone 110 by the product derivation mechanism 170, the pulverized object P is transferred from the transfer channel 161 to the vicinity of the upper portion of the separator cone 110 by the air flow rising while rotating. .

  At this time, since the material to be pulverized P is classified by the classification mechanism 180 from the sucked air, the material to be pulverized P pulverized into a powder is derived as a product, and the granular material to be pulverized P not pulverized is The separator cone 110 supplies the rotor unit 120 again.

  In the pulverization processing apparatus 100 of the present embodiment, as described above, the air in the internal space 141 of the pulverization space member 140 is swirled by the rotation of the rotor unit 120 and the air introduced from the side air intake unit 150, and the rotor that rotates there The granular material P is discharged from the unit 120 by centrifugal force.

  For this reason, the granular to-be-ground material P can mutually collide with the fluidized bed of the swirling air, and it can grind | pulverize in a powder form. In addition, the rotor unit 120 forms a fluidized bed that discharges the object to be pulverized P and turns. For this reason, the to-be-ground material P can be pulverized with good efficiency.

  Furthermore, since air is introduced from the side air intake unit 150 in a direction synchronized with the rotation of the rotor unit 120, a fluidized bed that swirls with better efficiency can be formed. In particular, outside air is introduced into the side air intake unit 150 by a negative pressure for deriving the pulverized object P.

  For this reason, the side air intake portion 150 for introducing air in a certain direction can be formed by a simple pipe having no power. Similarly, the bottom surface intake portion 190 can also be formed as a simple opening hole 191 having no power.

  And since the to-be-ground | pulverized object P is grind | pulverized by mutual collision, the abrasion of the grinding | pulverization processing apparatus 100 can be suppressed. For this reason, it can suppress satisfactorily that a foreign material mixes into the pulverized object P, and the maintainability of the pulverization apparatus 100 can also be reduced.

  However, the pulverized object P collides with the inner surface of the rotor unit 120 that rotates at a high speed. However, the rotor unit 120 forms the self-zone 123 on the inner surface by causing the centrifuge object 124 to accumulate the material P to be crushed.

  For this reason, the material P to be crushed does not directly rub the inner surface of the rotor unit 120. Accordingly, it is possible to satisfactorily prevent foreign matters from being mixed into the pulverized object P even though the object P is projected by the centrifugal force of the rotor unit 120 that rotates at high speed.

  Furthermore, since the air in the internal space 141 of the pulverizing space member 140 is swirled as described above, it is possible to prevent the material P from being accumulated at the bottom of the internal space 141 of the pulverizing space member 140. In particular, air is introduced into the internal space 141 from the bottom surface of the pulverization space member 140 by the bottom surface intake portion 190.

  Further, the side intake portion 150 also introduces air into the vicinity of the bottom of the grinding space member 140. For this reason, by introducing these air, it is possible to more effectively prevent the pulverized object P from accumulating at the bottom of the internal space 141 of the pulverization space member 140.

  In addition, the bottom surface intake portion 190 has an opening hole 191 formed in the bottom surface of the pulverization space member 140. The opening hole 191 allows air to permeate with a predetermined flow resistance and has a predetermined particle diameter. A filter member 192 that does not pass P is attached.

  For this reason, the to-be-ground object P is prevented from falling downward from the opening hole 191 of the bottom surface intake portion 190. Nevertheless, since the filter member 192 transmits air with a predetermined flow resistance, the suction force by the product derivation mechanism 170 can be ensured sufficiently.

  In particular, the filter member 192 includes a nonwoven fabric made of at least one short fiber of a porous material, vinylon, and polyester, and a screen that is laminated on the nonwoven fabric and has an opening ratio of 5 to 20%. For this reason, the characteristic which permeate | transmits air by predetermined | prescribed flow resistance, and does not allow the to-be-ground | pulverized material P of a predetermined particle diameter to pass through is realizable with a simple structure.

  Further, the rotation directions of the classification blade 181 and the rotor unit 120 are the same. For this reason, the swirl | vortex airflow for grind | pulverizing the to-be-ground material P can be utilized also for classification. Therefore, the power consumption for rotationally driving the classifying blade 181 can also be reduced. Further, the swirling of the air current is not hindered by the rotation of the classifying blade 181.

  Moreover, the separator cone 110 functions as a cyclone mechanism due to the swirling airflow formed by the rotor unit 120 and the classifying blade 181. For this reason, the pulverized product P pulverized into a powder can be satisfactorily supplied to the classification mechanism 180, and the granular pulverized product P that has not been pulverized can be satisfactorily supplied to the rotor unit 120.

  Further, a preliminary flow path 201 is formed outside the separator cone 110, and the preliminary flow path 201 is closed by a flow path opening / closing mechanism 210 so as to be freely opened and closed. For this reason, in the state where the preliminary flow path 201 is closed by the flow path opening / closing mechanism 210, the material P to be crushed is classified by the cyclone function of the separator cone 110 as described above.

  However, there may be a case where a large amount of the material P to be crushed stays inside the separator cone 110. Therefore, in such a case, for example, the operator manually opens the flow path opening / closing mechanism 210.

  Then, the object P to be crushed, which has moved from the pulverization space member 140 to the upper part of the separator cone 110 by the transfer flow path 161, is lowered to the rotor unit 120 by the outside preliminary flow path 201 as well as the inside of the separator cone 110. For this reason, the situation where the to-be-ground material P stagnates in the separator cone 110 can be solved satisfactorily.

  The present invention is not limited to the present embodiment, and various modifications are allowed without departing from the scope of the present invention. For example, in the above embodiment, the side intake unit 150 and the bottom intake unit 190 introduce the outside air by the negative pressure of the product derivation mechanism 170 that extracts the pulverized object P to the outside.

  However, the side suction unit 150 and the bottom suction unit 190 may have a pneumatic feeding mechanism (not shown) such as a blower unit that pumps air into the internal space 141 of the pulverization space member 140. In this case, the air in the internal space 141 of the pulverization space member 140 can be swirled more favorably, and the object P can be prevented from stagnating.

  Further, in the above embodiment, the side air intake unit 150 exemplifies that the air is introduced into the internal space 141 of the pulverization space member 140 substantially horizontally. However, the side intake section may introduce air obliquely upward (not shown).

  In this case, the efficiency of swirling the air is reduced, but the accumulation of the pulverized material P can be prevented more favorably. For this reason, it is not impossible to make the side surface intake portion 150 also serve as the bottom surface intake portion 190.

  Moreover, in the said form, it illustrated that the bottom face intake part 190 introduce | transduced air directly into the internal space 141 of the crushing space member 140. FIG. However, the bottom intake portion may introduce air obliquely upward in synchronization with the rotation direction of the rotor unit 120.

  In this case, the efficiency of preventing the accumulation of the material P to be crushed may decrease, but the introduction by the bottom surface intake portion can also contribute to the swirling of the air. For this reason, it is not impossible to make the bottom surface intake portion 190 also serve as the side surface intake portion 150.

  Furthermore, in the said form, it illustrated that the internal space 141 of the crushing space member 140 was cylindrical. However, since it only needs to be formed in a rotating body that does not hinder the formation of the swirling fluidized bed, it may be formed in a shape that has a dodecagonal planar shape (not shown).

  In the above embodiment, the classifying blade 181 of the classifying mechanism 180 has specifically exemplified the form having a large number of blades as point targets. However, as shown in FIGS. 7 and 8, a classification blade 183 having another shape may be used.

  Further, in the above embodiment, it is assumed that the operator manually operates the flow path opening / closing mechanism 210 to open / close the preliminary flow path 201 depending on the stagnation state of the object P to be classified inside the separator cone 110. However, the internal state of the separator cone 110 may be detected by a sensor mechanism (not shown), and the channel opening / closing mechanism 210 may automatically open / close the auxiliary channel 201.

  Moreover, in the said form, it illustrated that the flow-path opening-and-closing mechanism 210 switches the preliminary | backup channel 201 to a fully open state and a fully closed state. However, the flow rate of the preliminary flow path 201 may be adjusted by adjusting the open / close state of the flow path opening / closing mechanism 210 in a plurality of steps or in a stepless manner.

  Further, in the above embodiment, the side intake unit 150 and the bottom intake unit 190 exemplarily introduces air from the outside of the apparatus as a gas. However, a specific gas such as carbon dioxide or nitrogen may be introduced as a gas by piping a gas cylinder (not shown) to the side suction part 150 or the bottom suction part 190. By using such a gas, for example, the oxygen concentration can be reduced to suppress oxidation of the object to be crushed, and dust explosion can be prevented.

  Furthermore, in the above-described embodiment, the side intake portion 150 is exemplified by a pair of cylindrical pipes connected to the cylindrical internal space 141 of the grinding space member 140 from the outside in the tangential direction. However, as in the pulverization apparatus 300 illustrated in FIGS. 9 and 10, the side air intake portion 310 may have a slit-like intake port 311.

  More specifically, in the pulverization processing apparatus 300, the pulverization space member 320 has an inner peripheral surface formed by a plurality of arc-shaped movable side wall members 322 that can be displaced in a direction substantially perpendicular to the vertical direction.

  For this reason, in the side surface intake portion 310, a slit-like intake port 311 is formed in the gap between the plurality of movable side wall members 322. The side air intake portion 310 varies the lateral width of the slit-like air inlet 311 that is opened from the upper part to the lower part on the inner peripheral surface of the pulverization space member 320.

  In the drawing, in order to clarify that the lateral width of the slit-like intake port 311 is variable, the lateral widths of the plurality of intake ports 311 are made different. However, in the actual use state, the horizontal widths of the plurality of air inlets 311 are unified.

  Naturally, the side air intake portion 310 is formed with a slit-like air inlet 311 in a direction in which gas is introduced by the swirling airflow generated in the internal space 321 of the grinding space member 320 by the rotation of the rotor unit 120.

  The movable side wall member 322 is supported by a distal end that forms a suction port 311 so that the distal end of the movable side wall member 322 can be displaced by, for example, being pivotally supported by a support shaft parallel to the vertical direction (not shown). ing. Further, the movable movable side wall member 322 is fixed by, for example, a bolt and a nut.

  Also in such a pulverization processing apparatus 300, the gas in the internal space 321 of the pulverization space member 320 can be swirled by the rotation of the rotor unit 120 and the gas introduced from the side air intake portion 310.

  In this case, gas can be uniformly introduced into the internal space 321 of the pulverization space member 320 from the slit-like inlet 311 in the vertical direction. For this reason, gas can be swirled favorably in the cylindrical internal space 321 of the pulverization space member 320.

  In addition, as described above, the lateral width of the slit-like air inlet 311 of the side air intake unit 310 is varied by displacing the plurality of arc-shaped movable side wall members 322 in a direction substantially perpendicular to the vertical direction.

  For this reason, the capacity | capacitance and speed of the intake of the side surface intake part 310 can be adjusted as desired. Accordingly, the turning speed of the object to be crushed in the internal space 321 of the pulverization space member 320 can be changed to adjust the efficiency and particle size of the pulverization.

  In particular, the air inlet 311 of the side air inlet 310 is formed in a slit shape that is open from the upper part to the lower part on the inner peripheral surface of the grinding space member 320. Accordingly, the swirling airflow can be generated satisfactorily in the entire internal space 321 of the pulverization space member 320.

  Further, the side air intake portion 310 varies the lateral width of the slit-like intake port 311 by displacing the plurality of arc-shaped movable side wall members 322 in a direction substantially perpendicular to the vertical direction. For this reason, the horizontal width of the intake port 311 can be reliably varied with a simple structure using the structural parts of the pulverization space member 320.

  In addition, by connecting an actuator or the like to the movable side wall member 322 (not shown), the movable side wall member 322 may be electrically displaced to vary the lateral width of the intake port 311 of the side surface intake section 310. In addition, when the side suction portion 310 is formed in a slit shape as described above, the bottom suction portion 190 may be omitted (not shown).

It is a vertical front view which shows the internal structure of the grinding | pulverization processing apparatus of embodiment of this invention. It is a cross-sectional top view which shows the structure of principal parts, such as a rotor unit and a side surface intake part. It is a perspective view which shows the external appearance of a rotor unit. It is a vertical front view which shows the structure of principal parts, such as a bottom face intake part. It is a vertical front view which shows the structure of the principal parts, such as a classification mechanism. It is a bottom view which shows the external appearance of a classification blade. It is a vertical front view which shows the structure of the principal parts, such as a classification mechanism of one modification. It is a bottom view which shows the external appearance of a classification blade. It is a vertical front view which shows the internal structure of the grinding | pulverization processing apparatus of another modification. It is a cross-sectional top view which shows the structure of principal parts, such as a rotor unit and a side surface intake part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Grinding processing apparatus 110 Separator cone 111 Current plate 120 Rotor unit 121 Inlet port 122 Outlet port 123 Self zone 124 Centrifugal blade 130 Rotor drive mechanism 131 Rotating shaft 140 Grinding space member 141 Internal space 150 Side surface intake portion 160 Flow path forming member 161 Transfer Flow path 170 Product derivation mechanism 180 Classification mechanism 181 Classification blade 182 Rotating shaft 183 Classification blade 190 Bottom suction part 191 Open hole 192 Filter member 200 Preliminary forming member 201 Preliminary flow path 210 Flow path opening / closing mechanism 220 Raw material introduction part 300 Crushing treatment device 310 Side suction portion 311 Intake port 320 Crushing space member 321 Internal space 322 Movable side wall member P Object to be crushed

Claims (13)

A pulverization apparatus for pulverizing a granular object to be pulverized,
A separator cone that has an inner surface formed in a conical shape in which the axial direction is substantially parallel to the vertical direction and the lower part is sharp, and discharges the object to be crushed from the upper opening through the lower opening;
A rotor unit having a hollow structure in which an introduction port through which the material to be crushed is supplied from the separator cone is formed in the center of the upper surface and a discharge port for discharging the material to be crushed is formed on the outer surface.
A rotor drive mechanism for rotating the rotor unit by a rotation shaft whose axial direction is substantially parallel to the vertical direction;
A hollow pulverized space member in which the rotor unit is disposed in a rotating body-like internal space whose axial direction is substantially parallel to the vertical direction;
A side air intake unit that introduces gas from the inner side surface of the crushing space member into the inner space in a direction synchronized with the moving direction of the outer side surface of the rotor unit;
A flow path forming member forming a transfer flow path from the upper part of the pulverization space member to the upper opening of the separator cone;
A product derivation mechanism that draws out the object to be crushed from the vicinity of the upper part of the separator cone with the gas under a negative pressure;
A classification mechanism for classifying the pulverized material to be derived at the top of the separator cone;
A pulverizing apparatus.   2. The fluidized bed in which the gas in the internal space of the pulverization space member is swung by rotation of the rotor unit and introduction by the side surface intake portion to generate a fluidized bed in which the objects to be crushed collide with each other and are pulverized. The pulverization processing apparatus described.   The pulverization apparatus according to claim 1, further comprising a bottom surface intake portion that introduces the gas into the internal space from the bottom surface of the pulverization space member. The bottom suction part is
An opening formed in the bottom surface of the pulverization space member;
The pulverization apparatus according to claim 3, further comprising: a filter member that is disposed in the opening hole and transmits the gas with a predetermined flow resistance and does not allow the object to be pulverized having a predetermined particle diameter to pass therethrough. The filter member is
A nonwoven fabric comprising at least one short fiber of a porous material, vinylon and polyester;
A screen laminated with the nonwoven fabric and having an aperture ratio of 5 to 20%;
The pulverization processing apparatus according to claim 4, comprising:   The pulverization processing apparatus according to any one of claims 3 to 5, wherein the bottom surface intake portion includes a gas pressure feeding mechanism that pressure-feeds the gas into an internal space of the pulverization space member.   The pulverization processing apparatus according to any one of claims 1 to 6, wherein the side surface intake portion includes a gas pressure feeding mechanism that pressure-feeds the gas into an internal space of the pulverization space member. A preliminary forming member forming a preliminary flow path from the periphery of the upper opening to the periphery of the lower opening on the outside of the separator cone;
A channel opening and closing mechanism for closing the preliminary channel so as to be freely opened and closed;
The pulverization apparatus according to any one of claims 1 to 7, further comprising: The classification mechanism includes a classification blade, and a classification drive mechanism that rotationally drives the classification blade by a rotation shaft whose axial direction is substantially parallel to the vertical direction.
The pulverization apparatus according to any one of claims 1 to 8, wherein the classification blade and the rotor unit have the same rotation direction.   The pulverization apparatus according to any one of claims 1 to 9, wherein the rotor unit includes a centrifugal blade in which the object to be pulverized accumulates to form a self-zone.   11. The pulverization apparatus according to claim 1, wherein the side surface intake portion includes a slit-like intake port that is open from an upper part to a lower part on an inner peripheral surface of the pulverization space member.   The pulverization processing apparatus according to claim 11, wherein the side air intake portion varies a lateral width of the slit-shaped intake port. The pulverization space member has an inner peripheral surface formed of a plurality of arc-shaped movable side wall members that are displaceable in a direction substantially orthogonal to the vertical direction,
The pulverization processing apparatus according to claim 12, wherein the side surface intake portion has the slit-shaped intake port formed by a gap between the plurality of movable side wall members.

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