JP6037482B1 - Granulator - Google Patents

Abstract

The present invention provides a granulating apparatus capable of granulating a granulated material to obtain a granulated material having a stable shape. The belt is moved so that a recess 6a extending in a direction perpendicular to the moving direction of the belt is formed in the belt 6 that conveys the granulated material. A scraper 11 is provided on the upper surface of the inclined surface 6c following the recess, and scrapes the granulated material on the belt from the belt and drops it along the inclined surface. The granulated material is granulated by giving rise to the granulated material along the inclined surface and dropping along the inclined surface by the scraper. [Selection] Figure 1

Description

  The present invention relates to a granulating apparatus for granulating a granulated material such as kneaded wet ash discharged from a fly ash kneader.

  Conventionally, fly ash is granulated and solidified by adding cement and water (humidified water) to fine fly ash generated when incineration of garbage at a garbage incineration plant and kneading. .

  For this granulation, the granulated material is kneaded by the protruding members standing on the rotating shaft, and the granular material generated by this kneading is conveyed so as to rise in the direction of the discharge port, and the size is more than a certain size The structure which discharges | emits the granular material which grew rapidly from the discharge port is known (patent document 1).

  In addition, the granulated material is subjected to a granulating motion that repeats the rising along the inclined surface between the convex portion and the concave portion formed on the corrugated belt and the falling along the inclined surface due to the weight of the granulated material after rising. The structure which produces | generates a granulated material is known (patent document 2).

JP 2011-189296 A JP 2010-22913 A

  However, in the configuration of Patent Document 1, the entire granulation apparatus is tilted so that the discharge port is upward, and the granulation particle size is adjusted by adjusting the tilt angle. There is a problem that it is difficult to generate.

  In addition, the configuration of Patent Document 2 has a problem that the corrugated belt moving mechanism becomes complicated because a large number of inclined surfaces are formed on the corrugated belt and granulation is performed in multiple stages. It was.

  The present invention has been made to solve such problems, and provides a granulation apparatus capable of granulating a granulated material with a simple configuration to obtain a granulated material having a stable shape. The task is to do.

The present invention (Claim 1)
A granulating device for granulating a granulated material put on a belt while conveying it with a belt,
A belt moving mechanism for moving the belt such that a recess extending in a direction perpendicular to the moving direction of the belt is formed on the belt;
A scraping member that is provided at the upper part of the inclined surface following the concave portion, scrapes the granulated material on the belt from the belt, and drops it along the inclined surface ;
A granulated material moving mechanism for moving the granulated material staying in the recess in the direction in which the recess extends, and
The granulated material moving mechanism includes a first screw having a screw blade provided at one end of the recess and moving the granulated material to the other end of the recess, and a target provided at the other end of the recess. A second screw provided with a screw blade for moving the granulated material from the other end to the outside of the belt,
The belt is moved to give the granulated material a rise along the inclined surface and a fall along the inclined surface by the scraping member to granulate the granulated material , The retained granulated material is moved in the direction in which the recess extends, and is moved from the other end of the recess to the outside of the belt .

In the present invention (Claim 2), a swinging mechanism is provided for swinging and tilting the moving path in the concave portion of the granulated material.

In this invention, the granulated material conveyed with a belt raises along the inclined surface following the recessed part provided in the belt, and falls along this inclined surface by the scraping member provided in the inclined surface upper part. During this fall, the granulated material rotates in the direction opposite to the belt moving direction and rolls down the inclined surface, so that an effective granulating motion is given and it is possible to obtain a granulated material having a stable shape. Become.
Further, since the movement path in the concave portion of the granulated material is inclined so as to rise as the granulated material moves, the granulation motion is given here and the granulated material having a large particle size is almost uniform. Can be formed.

It is a perspective view which decomposes | disassembles and shows partially the whole structure of the granulation apparatus by this invention. It is a front view which shows the vicinity of the belt inclined surface of a granulation apparatus, and the front of a rocking device. It is a front view corresponding to FIG. 2 when rocking | pulverizing a granulation apparatus. It is the side view of the granulation apparatus which showed the state which a to-be-granulated material conveys to a belt and moves. It is a top view of a granulation apparatus. It is a perspective view which shows the moving mechanism of the belt of a granulation apparatus. It is the perspective view which showed the crank mechanism which rocks a granulation apparatus. It is explanatory drawing which showed the state which scrapes off a to-be-granulated material from a belt surface. (A) is explanatory drawing which shows the granulation process when the moving path of a granulated material is horizontal, (b) is explanatory drawing explaining the granulating process when this moving path inclines. (A) is a front view of the crank mechanism when the motor of the swing mechanism rotates 90 °, and (b) is a front view of the crank mechanism when the motor rotates 270 °.

  Hereinafter, the granulation apparatus of the present invention will be described in detail based on the embodiments shown in the drawings.

  An embodiment of the present invention will be described below with reference to FIGS. 1 is a perspective view showing the overall configuration of a granulating apparatus according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a front view when the granulating apparatus is swung, and FIG. 4 is a side view of the granulating apparatus. FIG. 5 is a top view thereof.

  The granulating apparatus includes a front frame 10 fixed to both ends of a base 9 and a metal or resin head pulley 1, an intermediate pulley 2, a tail pulley 3, and a front idle pulley 4 that are rotatably supported by a tail frame 10 ′. As well as a tail idle pulley 5. As shown in FIG. 6, a rubber or cloth belt 6 having a predetermined frictional resistance is stretched over each of the pulleys 1 to 5. A motor 23 is attached to the tail frame 10 ′ via a metal fitting 23 a, and the head pulley 1 is rotated by the motor 23 via a coupling 24. The rotation of the head pulley 1 causes the belt 6 to move endlessly in the direction indicated by the arrow in FIG. 1, and the other pulleys 2 to 5 that are in frictional contact with the belt 6 are passively rotated.

  The front frame 10 has a metal or resin discharge screw 17 having a collar 19 and a rotation shaft 18, and the tail frame 10 ′ has a metal or resin approach screw 20 having a collar 22 and a rotation shaft 21. Are rotatably mounted between the head pulley 1 and the intermediate pulley 2 (see FIGS. 1 and 2). Since the belt 6 is stretched so as to be in contact with the lower surface of the blade outer diameter of each screw 17, 20, the discharge screw 17 and the leading screw 20 are in frictional contact with the belt 6 and passively rotate in accordance with the movement of the belt 6. Since both the discharge screw 17 and the lead screw 20 have left-handed spiral blades, the granulated material is moved in the right direction in FIGS. 1 and 2 by these screws 17 and 20, and the lead screw 20 and the discharge screw 17. Constitutes a granulated material moving mechanism.

  The front frame 10 is formed with a long hole 10a extending in the horizontal direction (see FIG. 4) so that the shaft of the tail pulley 3 can be moved along the long hole 10a with the adjusting bolt 35. It has become. Further, a similar slot is formed in the tail frame 10 'so that the other axial position of the tail pulley 3 can be adjusted by the adjusting bolt 35', so that the belt can be adjusted by the adjusting bolts 35 and 35 '. The tension of 6 can be adjusted.

  Further, since the discharge screw 17 and the leading screw 20 are mounted at substantially the same height as the pulleys 1 and 2, the belt 6 is bent in a U shape by the screws 17 and 20 and moved. A concave portion 6a extending in a direction perpendicular to the moving direction of the belt and curved inclined surfaces 6b and 6c are formed on both sides thereof. The pulleys 1 to 5, the discharge screw 17, the shift screw 20, and the belt 6 stretched are shown in perspective in FIG.

  A hopper hanger 16 is attached to the upper part of the front frame 10 and the tail frame 10 ′, and a storage hopper 14 is attached to a substantially central part of the hopper hanger 16. The storage hopper 14 is filled with wet ash 25 (granulated material) such as fly ash containing water kneaded by a kneading device (not shown) provided in the preceding stage (see FIGS. 1 and 4). ). The wet ash 25 stored in the storage hopper 14 is adjusted in processing amount by the adjustment gate 15 and is discharged onto the belt 6 from the opening 14a and is conveyed in the direction of the recess 6a.

  When the belt 6 moves between the head pulley 1 and the intermediate pulley 2, the wet ash 25 on the belt 6 falls along the inclined surface 6b of the belt 6 into the recess 6a, and the wet ash adhering to the belt 6 is opposed to the inclined surface. Ascend along 6c.

  Further, a hanger 13 is fixed between the front frame 10 and the tail frame 10 ', and a holder for holding a metal or resin scraper (scraping member) 11 having a sharp end portion 11a on the hanger 13. 12 is mounted (see FIG. 8). The scraper 11 extends along the recess 6a over a width that is substantially the same as the width of the belt 6 or wider than the belt 6, and the sharp tip portion 11a is in close contact with the belt surface. When the belt 6 moves, the tip end portion 11a enters below the rising wet ash, and the wet ash is scraped off the belt 6 as the belt moves.

  Further, the granule chute 7 is attached to the front frame 10 using the brackets 34 and 34 'so that the opening 10b is formed in the front frame 10 and a part thereof enters the opening 10b. The wet ash discharged and granulated by the discharge screw 17 falls on the granule chute 7 as a granulated product and is stored in a granulation box 8 provided below the granule chute 7.

  In the present embodiment, a swing mechanism 50 is provided that swings and tilts the moving path of the granulated wet ash in the recess 6a of the belt 6. The swing mechanism 50 has a base 52 fixed to both legs 51 and 51 ′, and bearing bases 53 and 53 ′ are attached to both sides of the base 52 with a spacing plate 54 interposed therebetween. Bearings 55 and 55 ′ that support the swing shaft 58 are fixed to the bearing bases 53 and 53 ′. The swing shaft 58 is also supported by bearings 56 and 56 ′ connected to the right side of the base 9.

  A link mechanism including an arm 60, a link 64, a motor link 70, and a crank arm 72 is attached to the base 52. The arm pin 60 a of the arm 60 is supported by a bearing 61 fixed to the base 52. The arm 60 has an arm length of 2: 1 and is connected to a link 64 via a lower link pin 62. The link 64 is supported by bearings 65 and 65 'by an upper link pin 63. The bearings 65 and 65 ′ are fixed to the left central portion of the base 9.

  The arm 60 is coupled to a motor link 70 via a motor link pin 68, and the motor link 70 is coupled to a crank arm 72 via a crank pin 71. As shown in FIG. 7, the crank arm 72 is connected to a rotation shaft 69 a of a motor 69 attached to the base 52 via an attachment fitting 73.

  The distance between the rotation axis 69a of the motor 69 and the axis of the crankpin 71 is a radius r. When the motor 69 is driven, the crank arm 72 rotates around the rotation axis 69a, and the crankpin 71 rotates. A circular motion with a radius r is performed about the axis 69a. When the motor 69 is rotated 90 ° from the position shown in FIG. 2, the motor link 70 and the crank arm 72 are moved to the positions shown in FIG. 10A, and when the motor 69 is further rotated 90 ° (rotated 180 ° from the position shown in FIG. 2). As shown in FIG. 3, the crank pin 71 moves to the opposite side in the radial direction rotated by 180 °, and the motor link 70 moves diagonally upward by d = 2r.

  As the motor link 70 moves by d = 2r, the arm 60 swings around the arm pin 60a and moves the link 64 downward by d / 2 according to the arm length ratio 2: 1. As the link 64 moves downward, the advancing screw 20 rotates about the swing shaft 58 at a radius R downward by θ as shown in FIG. By the rotation of the shift screw 20, the shift screw 20 moves below the discharge screw 17, and the moving path of the wet ash in the concave portion 6a of the belt 6 is as shown in FIG. 3 from the horizontal position in FIG. The moving path is inclined downward.

  When the motor 69 rotates 90 ° further than the position shown in FIG. 3 (rotates 270 ° from the position shown in FIG. 2), the arms 60 and 72, the links 64 and 70, etc. take the positions shown in FIG. Further, when rotated 90 ° (360 ° from the position in FIG. 2), the position returns to the position shown in FIG. The position between the lower positions is periodically swung (for example, a period of 4 seconds), and the moving path of the wet ash in the recess 6a periodically inclines downward.

  Next, operation | movement of the granulation apparatus comprised in this way is demonstrated.

  When the motor 23 is driven, the head pulley 1 rotates and the belt 6 that comes into frictional contact with the pulley 1 moves. When the belt 6 moves, the pulleys 2 to 5 that are in frictional contact with the belt 6 are passively rotated. Thereby, the belt 6 circulates around the pulleys 1 to 5 endlessly. When the tension of the belt 6 is weak and the rotation of the pulleys 1 to 5 is poor, the tension of the belt 6 is adjusted by the adjusting bolts 35 and 35 '.

  The storage hopper 14 is charged with kneaded wet ash 25 such as fly ash containing moisture. The wet ash 25 charged and stored in the storage hopper 14 is discharged to the belt 6 from the opening 14a after the processing amount is adjusted by the adjustment gate 15. When the wet ash passes over the intermediate pulley 2, it falls and accumulates in the recess 6 a along the inclined surface 6 b of the belt 6. The wet ash having a small particle diameter attached to the belt 6 moves up on the inclined surface 6c facing each other and rises.

  In the present embodiment, since the scraper 11 is provided above the inclined surface 6c, as shown in FIG. 8, the wet ash 25 is scraped off from the belt 6 by the sharp tip portion 11a that is in close contact with the belt surface. The roller 6 rolls down toward the recess 6a while rotating on the inclined surface 6c in reverse to the rotation of the belt 6. In this process, granulation motion is given to the wet ash, so that the wet ash increases in granulation and is returned to the recess 6a.

  Since the wet ash having a large particle size does not adhere to the belt 6, the wet ash that is conveyed toward the discharge screw 17 by the shifting screw 20 and reaches the discharge screw 17 becomes a granulated product and becomes the discharge screw 17. Is discharged to the discharge chute 7, falls into the granulation box 8, and is stored there.

  On the other hand, the wet ash adhering to the belt 6 rises along the inclined surface 6c many times and is scraped off by the scraper 11, and is given a granulating motion each time to increase the particle size and return to the recess 6a. . Thus, the granulation motion is given several times by scraping off by the scraper 11 and dropping along the inclined surface 6c, so that the wet ash gradually increases in particle size and no longer adheres to the belt 6, and the discharge chute 7 is dropped into the granulation box 8 through 7 and stored there.

  When the movement path of the granulated wet ash in the recess 6a is horizontal as shown in FIG. 2, the wet ash having a large particle size is discharged earlier than the small wet ash as shown in FIG. 9 (a). It is discharged by the screw 17. In this embodiment, the moving path in the recess 6a of the wet ash is periodically oscillated and inclined so that the moving screw 20 is located below the discharge screw 17 and the granulated wet ash moves upward.

  When the moving path of the granulated wet ash in the recess 6a is inclined as shown in FIG. 9 (b), the wet ash 25 falls in the direction of the closing screw 20 while rotating counterclockwise. On the other hand, the wet ash that has reached the shift screw 20 is pushed back to the right by the function of the shift screw 20 and stays in the vicinity of the shift screw 20. During this stay, the wet ash having a small particle size is entangled with and bonded to the wet ash having a large particle size by the moisture of the wet ash. The bonded wet ash is gradually increased in particle size, and the wet ash granulated by the bonding force and the crushing rotational force is gradually hardened to become a uniform granulated product with a solidified particle size. Falls and is stored there. Thus, since the strong granulation motion is given also by inclining the moving path of wet ash, effective granulation can be performed.

  In the embodiment described above, the granulated material was kneaded wet ash such as fly ash containing moisture. However, for example, foods such as granulated clothes seasoned with peanuts are also included in the present invention. It can be granulated with a granulator. Further, for example, the granulation apparatus of the present invention can be used for the purpose of granulating to prevent scattering during transportation of feces such as horses, cows, pigs, chickens, etc. or as fertilizer. In addition, the granulating apparatus of the present invention can also be used to prevent powder scattering.

DESCRIPTION OF SYMBOLS 1 Head pulley 2 Intermediate pulley 3 Tail pulley 4 Front idle pulley 5 Tail idle pulley 6 Belt 6a Recess 6b, 6c Inclined surface 7 Granule chute 8 Granulation box 9 Base 10 Front frame 10 'Tail frame 11 Scraper 12 Holder 13 Hanger DESCRIPTION OF SYMBOLS 14 Storage hopper 15 Adjustment gate 16 Hopper hanger 17 Discharge screw 20 Lead screw 23 Motor 24 Coupling 25 Granulated wet ash 34, 34 'Bracket 35, 35' Adjustment bolt 50 Oscillation mechanism 52 Base 53, 53 'Bearing Base 55, 55 'Bearing 56, 56' Bearing 58 Oscillating shaft 60 Arm 61 Bearing 64 Link 65, 65 'Bearing 68 Motor link pin 69 Motor 70 Motor link 7 Crank pin 72 the crank arm 73 mounting bracket

Claims (8)

A granulating device for granulating a granulated material put on a belt while conveying it with a belt,
A belt moving mechanism for moving the belt such that a recess extending in a direction perpendicular to the moving direction of the belt is formed on the belt;
A scraping member that is provided at the upper part of the inclined surface following the concave portion, scrapes the granulated material on the belt from the belt, and drops it along the inclined surface ;
A granulated material moving mechanism for moving the granulated material staying in the recess in the direction in which the recess extends, and
The granulated material moving mechanism includes a first screw having a screw blade provided at one end of the recess and moving the granulated material to the other end of the recess, and a target provided at the other end of the recess. A second screw provided with a screw blade for moving the granulated material from the other end to the outside of the belt,
The belt is moved to give the granulated material a rise along the inclined surface and a fall along the inclined surface by the scraping member to granulate the granulated material , A granulating apparatus for moving a staying granulated material in a direction in which the concave portion extends and moving the granulated material from the other end of the concave portion to the outside of the belt . 2. The granulating apparatus according to claim 1 , further comprising a swinging mechanism that swings and tilts a moving path in the concave portion of the granulated material. The swing mechanism moves the first screw downward from the second screw, and inclines the moving path in the concave portion of the granulated material so that the granulated material moves upward. The granulation apparatus according to claim 2 . The swing mechanism, wherein the first screw, to claim 3, characterized in that for periodically swinging between a position flush with the position and the second screw made lower than the second screw Granulating equipment. Said first and screw blade of the second screw in frictional contact with the belt in the recess, whereby the first and any one of claims 1 to 4, the second screw, characterized in that the passive rotation The granulator described. The granulator according to any one of claims 1 to 5 , wherein the belt is an endless belt. The belt is wound around a plurality of pulleys in frictional contact, one of the plurality of pulleys is rotated by a motor, and the other pulley is passively rotated by frictional contact with the belt to move endlessly. The granulating apparatus according to claim 6 . The scraping member has a sharp tip portion that is in close contact with the belt, and the tip portion enters below the granulated material as the belt moves, and scrapes the granulated material from the belt. Item 8. The granulator according to any one of Items 1 to 7 .

Images