JP2012213750A - Grinding/rubbing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grinding/rubbing apparatus which is made compact and in which the quality of an aggregate to be withdrawn from the waste of concrete is improved while reducing power consumption.SOLUTION: The grinding/rubbing apparatus 1, in which the aggregate is withdrawn from the waste of concrete by grinding/rubbing treatment, includes: a housing 13; a chute 28 for throwing the waste of concrete in the housing; a grinding/rubbing part 29 which is arranged fixedly on the bottom end of the chute and has a grinding/rubbing pin 33 projected downward; a drive shaft 16 arranged concentrically under the chute; a grinding/rubbing table 17 arranged on the upper end of the drive shaft to be opposed to the grinding/rubbing part; and driving devices 14, 15 for rotary driving the grinding/rubbing table via the drive shaft. First grinding/rubbing treatment is performed on the waste of concrete thrown from the chute by using the grinding/rubbing pin and the grinding/rubbing table to be rotated relatively to the grinding/rubbing pin.

Description

  The present invention relates to a grime apparatus that performs grime processing on concrete waste and takes out only the aggregate from the concrete waste, thereby reusing the aggregate.

  In recent years, mortar and cement hydrate (filler) adhering to aggregated concrete aggregate has been removed by depletion of natural fine aggregates and the implementation of the Construction Recycling Law, and aggregated concrete waste can be reused. Is required.

  In order to remove the filler from the concrete waste material and take out the aggregate, it is necessary to grind the concrete waste materials to remove the filler from the concrete waste material. As an apparatus having a grime mechanism, for example, Patent Literature There is what is shown in 1.

  In Patent Document 1, a cylindrical main body is erected vertically, concrete waste material is supplied from a supply pipe connected to the upper side of the main body, and the concrete waste material is a rotating body that is rotatably supported coaxially with the main body. There is disclosed a vertical grinder that peels off mortar and the like adhering to the outer surface of a concrete waste material by gradually falling while being stirred by a steel rod.

  However, in the case of Patent Document 1, in order to rotate the suspended heavy rotating body, the driving power of the rotating body is increased, and a large height difference is required to obtain sufficient surging efficiency. The device itself becomes larger.

Japanese Patent Laid-Open No. 10-137689

  In view of such a situation, the present invention provides a grime device that reduces the size of the device and improves the quality of the aggregate taken from the concrete waste while suppressing power consumption.

  The present invention relates to a grime device for removing aggregate from concrete waste by grime processing, wherein the grime device is fixed to a housing, a chute for putting the waste concrete into the housing, and a lower end of the chute. A grind portion having a grind pin protruding downward, a drive shaft provided concentrically below the chute, and a slide provided at the upper end of the drive shaft so as to face the grind portion. A grind table, and a drive device that rotationally drives the grind table via the drive shaft, and the grind pin and the grind table that rotates relative to the grind pin are inserted from the chute. The present invention relates to a grinding machine that performs a first grinding process on concrete waste.

  The present invention further includes a cylindrical inner peripheral material guide provided on the outer peripheral side of the surimi pin, and a cylindrical outer peripheral material guide provided on the outer peripheral side of the inner peripheral material guide. A plurality of rectangular inner circumferential openings at equal intervals in the inner material guide, and a plurality of rectangular outer openings at equal intervals in the outer material guide, The opening ratio of the inner peripheral side opening and the opening ratio of the outer peripheral side opening with respect to the outer peripheral material guide are related to the surging apparatus set corresponding to the processing time of the first surfacing process.

  The present invention also relates to a grime device in which the outer peripheral opening is not overlapped with the inner peripheral opening.

  The present invention further includes a grind cone provided in the middle of the drive shaft and rotating integrally with the grind table via the drive shaft, and the concrete waste material dropped from the grind table The present invention relates to a grime device that performs a second grime treatment with a grind cone and an inner wall of the housing.

  Further, the present invention provides a first air inlet for supplying air for conveyance to a space formed between the grinding table and the grinding cone, and between the grinding cone and the lower surface of the inner wall of the housing. The present invention relates to a surimi device further comprising a second air inlet for supplying air for conveyance to the formed space.

  Furthermore, the present invention relates to a surging device that supplies air for conveyance heated from the first air inlet and the second air inlet.

  According to the present invention, there is a grime device for removing aggregate from concrete waste by grime processing, wherein the grime device is a housing, a chute for charging concrete waste into the housing, and a lower end of the chute. A ground portion having a ground pin that is fixedly provided and protrudes downward, a drive shaft provided concentrically below the chute, and an upper end portion of the drive shaft are provided to face the ground portion. A surplus table and a drive device that rotationally drives the surplus table via the drive shaft. The surplus pin and the surplus table that rotates relative to the surplus pin are inserted from the chute. Since the first grinding process is performed on the used concrete waste material, there is no need to provide a separate concrete waste material discharge mechanism, and the cost can be reduced. Both the sliding is also possible continuously worn also viewed processing without stopping the viewing device, worn also exhibited an excellent effect that it is possible to improve the viewing efficiency.

It is a schematic block diagram which shows the aggregate reproduction | regeneration system with which the grime apparatus which concerns on the Example of this invention is used. 1 is a schematic sectional elevation view of a grime device according to an embodiment of the present invention. It is a top view of the grinding part which concerns on the Example of this invention. (A) is an AA arrow view of FIG. 3, (B) is an arrow B view of FIG. 3, (C) is an arrow C view of FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, referring to FIG. 1, an aggregate regeneration system in which a grime device according to an embodiment of the present invention is used will be described.

  In FIG. 1, reference numeral 1 denotes a grinding machine, 2 denotes a concrete waste material to be put into the grinding machine 1, and 3 denotes a filler 4 such as mortar or concrete hydrate which is peeled from the concrete waste material 2. The exhaust port 7 provided in the upper part of the grinder apparatus 1 is connected to the exhaust fan 6 through the dust collector 8 by the duct 5a. The aggregate 3 is not only a coarse aggregate having a large particle size from which the filler 4 has been peeled off, but also a fine aggregate having a small particle size to which the filler 4 has been slightly attached and cannot be completely peeled off by the grinding device 1. A mortar mass is also included.

  The exhaust fan 6 is connected to an intake port 11 provided at a lower portion of the surging device 1 through an adjustment damper 10 by a duct 5b, and between the adjustment damper 10 and the intake port 11 of the duct 5b. Is provided with an outside air introduction damper 30 connected to an outside air supply pipe (not shown).

  For example, a concrete waste 2 having a size of about 40 mm square is introduced into the grinder 1, and the filler 4 is peeled off from the aggregate 3 by carrying out the grime treatment in the grinder 1. The filler 4 is exhausted from the exhaust port 7 together with air by the exhaust fan 6, and is sent to the dust collector 8.

  In the dust collector 8, the filler 4 is separated from the air by a bag filter or the like, and the separated filler 4 is discharged out of the dust collector 8 by a rotary valve 9 provided below the dust collector 8. A part of the air from which the filler 4 has been separated by the dust collector 8 flows into the surging device 1 from the intake port 11 through the duct 5b as the conveying air by the exhaust fan 6. Note that the total amount of conveying air that flows into the surging device 1 by the exhaust fan 6 is adjusted by the adjustment damper 10 and the outside air introduction damper 30.

  The aggregate 3 from which the filler 4 has been peeled off in the grinding device 1 is discharged out of the grinding device 1 through a discharge port 12 provided at the lower end of the grinding device 1.

  Next, referring to FIG. 2, the grime device 1 will be described.

  An airtight cylindrical housing 13 is erected on a base (not shown) or the like, and a transfer air chamber 23 that is a space sealed by the housing 13 is formed. A speed reduction device 15 is provided below the housing 13, and the speed reduction device 15 is connected to the drive motor 14 by a V belt or a coupling. A drive shaft 16 concentric with the housing 13 is connected to the speed reducer 15, and the drive shaft 16 extends through the bottom of the housing 13 and extends to the middle of the carrier air chamber 23. The drive shaft 16 is rotatably supported by a support member 39 via a bearing 38 between a grind table 17 (described later) and a grind cone 18 (described later), and the housing 13 via a bearing 41. Is supported at the bottom of the rotator. The support member 39 is a rod-shaped member arranged radially around the bearing 38 and is supported on the inner side wall of the housing 13. The drive motor 14 and the speed reduction device 15 constitute a drive device.

  The disk-shaped grinding table 17 is provided concentrically with the driving shaft 16 at the upper end portion of the driving shaft 16, and the truncated cone-shaped cone cone 18 whose upper end is closed at the middle of the driving shaft 16. Is provided concentrically with the drive shaft 16, and a scraper 19 capable of sweeping the inner peripheral lower surface of the housing 13 is provided below the grind cone 18 of the drive shaft 16, and the grind table 17, the slide The paddle cone 18 and the scraper 19 are integrally rotated at a constant speed or a variable speed by the drive motor 14 via the drive shaft 16.

  A table segment 22 having a concave groove 20 having an arcuate cross section is provided on the upper surface of the grind table 17, and the table segment 22 can be exchanged for the grind table 17. An annular nozzle ring 21 is provided on the inner wall of the housing 13 facing the peripheral surface of the grind table 17, and a ring-shaped nozzle ring 21 is provided between the nozzle ring 21 and the peripheral surface of the surimi table 17. A gap 24a is formed.

  Further, the portion of the housing 13 facing the grinding cone 18 is cylindrical, and a gap 24b is formed between the inner wall of the housing 13 and the grinding cone 18, and the gap 24b is formed as described above. As the diameter of the grind cone 18 increases, the width gradually decreases downward.

  The space between the grind table 17 and the grind cone 18 forms a first transport air chamber 23a, and the space below the grind cone 18 forms a second transport air chamber 23b. A third carrier air chamber 23c is formed above the table 17. The housing 13 is provided with a first air inlet 11a that communicates with the first carrier air chamber 23a and a second air inlet 11b that communicates with the second carrier air chamber 23b.

  A first flow rate adjustment damper 25 and a second flow rate adjustment damper 26 are provided in the first intake port 11a and the second intake port 11b, respectively, and the first flow rate adjustment damper 25 and the second flow rate adjustment damper are provided. The ratio of the inflow amount of the conveyance air that conveys the filler 4 that flows in from the first intake port 11a and the second intake port 11b is adjusted by the opening degree of 26.

  The exhaust port 7 communicating with the third carrier air chamber 23c is attached to the upper portion of the housing 13, and the exhaust port 12 communicating with the second carrier air chamber 23b is provided at the lower end of the housing 13. Is provided. The discharge port 12 is provided with a rotary valve 27 that can rotate at a variable speed, and the aggregate 3 that has been swept by the scraper 19 and dropped to the discharge port 12 is sealed by the rotary valve 27. It is continuously discharged while being held.

  A waste material supply unit (not shown) is provided above the housing 13, and the waste material supply unit has a pipe-like chute 28. The chute 28 is provided on an extension of the rotational axis of the grinder table 17, extends into the housing 13, and has a lower end positioned above the center of the grinder table 17. The waste concrete 2 is supplied to the chute 28, and the supplied concrete waste 2 falls to the central portion of the surimi table 17.

  At the lower end of the chute 28, there is provided a disk grind portion 29 which is concentric with the grind table 17 and slightly larger than the grind table 17.

  3 and 4A to 4C, details of the grind portion 29 will be described.

  As shown in FIG. 3, the grind portion 29 has a predetermined number (12 in the figure) grime plates 31 arranged radially on the chute 28 at an equal angular pitch.

  A pin support plate 32 is fixed to the lower end of each grind plate 31 facing the table segment 22 by welding or the like so as to be parallel to the upper surface of the grind table 17.

  As shown in FIG. 4A, the pin support plate 32 includes a plurality of concentric pins 33 such as bolts in a concentric multiple circle shape, for example, an internal peripheral pin 33a and an outer peripheral side. The two grinding pins 33 a and 33 b of the grinding pin 33 b are screwed in a direction perpendicular to the upper surface of the grinding table 17. The ground pin 33a and the ground pin 33b have different lengths, and an equivalent gap is formed between the lower end of the ground pin 33a, 33b and the surface of the table segment 22, respectively. ing.

  The grind pins 33a and 33b can be exchanged as they are worn, and the amount of downward protrusion can be adjusted by the amount of screwing into the pin support plate 32.

  A cylindrical inner peripheral material guide 34 is fixed to the lower surface of the pin support plate 32 by welding or the like over the entire pin support plate 32 on the outer peripheral side of the ground pin 33b. On the same straight line of the grind pins 33a and 33b of the guide 34, rectangular inner peripheral side openings 35 cut out from the lower end as shown in FIG. 4C are formed at equal intervals. .

  A cylindrical outer periphery material guide 36 is attached to the outer end of the surfacing plate 31 by welding or the like over the entire surfacing plate 31, and the outer peripheral material guide 36 is lower than the lower end of the surfacing plate 31. The outer peripheral material guide 36 has an inner diameter slightly larger than the outer diameter of the surimi table 17.

  Further, the outer peripheral material guide 36 is formed with a rectangular outer peripheral opening 37 with a lower end cut off as shown in FIG. 4B at a predetermined number, for example, three places, at equal intervals. The opening ratio of the outer peripheral side opening 37 in the outer peripheral material guide 36 is smaller than the opening ratio of the inner peripheral side opening 35 in the inner peripheral material guide 34.

  The position where the outer peripheral side opening 37 of the outer peripheral material guide 36 is formed is preferably a position displaced in the circumferential direction so as not to overlap the inner peripheral side opening 35 of the inner peripheral material guide 34. The heights of the inner peripheral opening 35 and the outer peripheral opening 37 are desirably high enough to allow the largest aggregate 3 among the concrete waste 2 to be put into the grinding device 1.

  Next, the grinding process of the concrete waste material 2 in the grinding machine 1 will be described.

  First, the grind table 17, the grind cone 18, and the scraper 19 are moved at a predetermined speed, for example, centrifugal acceleration of 0.6 G to 0.00 by the drive motor 14 via the speed reducer 15 and the drive shaft 16. It is rotated at a speed of 7G.

  Also, the concrete waste material from the chute 28 in a state where the transfer air is introduced into the first transfer air chamber 23a and the second transfer air chamber 23b through the first intake port 11a and the second intake port 11b. 2 is inserted. The concrete waste material 2 flows down from the lower end of the chute 28 to the central portion of the grinding table 17 and is supplied onto the grinding table 17.

  The concrete waste material 2 on the grinding table 17 is moved in the outer peripheral direction by the centrifugal force generated by the rotation of the grinding table 17, and the first grinding process is performed. In the first grinding process, the grinding pin 33 and the concrete waste material 2 collide with each other in the process of moving in the outer circumferential direction, and the filler from the concrete waste material 2 due to the impact caused by the collision between the grinding pin 33 and the concrete waste material 2. 4 is peeled off.

  The concrete waste material 2 that has collided with the grinding pin 33 further moves in the outer circumferential direction by the rotational centrifugal force of the grinding table 17 and reaches the inner circumferential material guide 34. A part of the concrete waste 2 that has reached the inner peripheral material guide 34 passes through the inner peripheral side opening 35 and moves to the outside of the inner peripheral material guide 34, and the rest is transferred to the inner peripheral material guide 34. It is dammed up and stays on the grind table 17.

  The concrete waste material 2 staying on the grind table 17 is further filled with the filler 4 due to the collision with the newly introduced concrete waste material 2 and the grind between the concrete waste materials 2 by being stirred by the grind pin 33. Are peeled off and sequentially moved out of the inner peripheral material guide 34 from the inner peripheral opening 35.

  The outer peripheral side opening 37 of the outer peripheral material guide 36 is formed at a position that does not overlap the inner peripheral side opening 35, and passes through the inner peripheral side opening 35 to the outside of the inner peripheral material guide 34. The concrete waste material 2 that has moved and collides with the outer peripheral material guide 36.

  The concrete waste material 2 collides with the outer peripheral material guide 36 and is rebounded on the grind table 17, and the reclaimed concrete waste material 2 collides with the concrete waste material 2 that has passed through the inner peripheral side opening 35. Thus, the surging process is further performed, and the concrete waste material 2 that has reached the peripheral edge of the surimi table 17 is sequentially moved out of the surplus table 17 from the outer peripheral side opening 37.

  Note that the amount of movement of the concrete waste material 2 to the outside of the inner peripheral material guide 34 varies depending on the area of the inner peripheral side opening 35 in the inner peripheral material guide 34, and the outer peripheral material guide of the concrete waste material 2. The amount of movement outside 36 varies depending on the area of the outer peripheral side opening 37 in the outer peripheral material guide 36. Accordingly, the residence time of the concrete waste material 2 on the grind table 17, that is, the time during which the first grind processing is performed on the concrete waste material 2, the area of the inner peripheral side opening 35 and the outer peripheral side opening. Since it varies depending on the area of the portion 37, the opening ratio of the inner peripheral opening 35 and the outer peripheral opening 37 is set according to the desired degree of surging (processing time) of the first surging process. .

  Further, the transfer air introduced into the first transfer air chamber 23a from the first intake port 11a rises in the first transfer air chamber 23a, and between the surging table 17 and the nozzle ring 21. From the gap 24a.

  Of the concrete waste 2 after the first grinding process moved to the outside of the grinding table 17, the lighter specific gravity, that is, the filler 4 rides on the conveying air and rises along the inner wall surface of the housing 13. The exhaust port 7 is discharged to the outside of the grinder 1 and sent to the dust collector 8 (see FIG. 1) through the duct 5a (see FIG. 1), and the filler 4 collects dust from the conveying air. Is done.

  Of the concrete waste 2 after the first surimi treatment that has moved to the outside of the surimi table 17, the one having a high specific gravity, that is, the concrete waste 2 from which most of the filler 4 has been peeled, is transferred to the conveying air. The air drops from the gap 24a to the first transfer air chamber 23a without being blown up.

  The concrete scrap 2 after the first grinding process falls into the gap 24 b between the grinding cone 18 that rotates integrally with the drive shaft 16 and the inner wall of the housing 13.

  The fallen concrete waste 2 moves downward while the concrete waste 2 is compressed by the rotation of the grinding cone 18 and by the reduction of the width of the gap 24b as the diameter of the grinding cone 18 increases. Thus, the second grinding process is performed. By the second grinding process, the filler 4 slightly left in the concrete waste material 2 is peeled off. In addition, since the upper end of the grind cone 18 is closed, even if the concrete waste 2 does not fall between the grind cone 18 and the inner wall of the housing 13, the surplus cone 18 Can be dropped into the gap 24b by the rotational centrifugal force.

  Further, the transfer air introduced into the second transfer air chamber 23b from the second intake port 11b rises in the second transfer air chamber 23b and is blown up from the gap 24b.

  Among the concrete scrap 2 to be subjected to the second grinding process, the filler 4 having a light specific gravity, that is, the filler 4 slightly remaining in the concrete scrap 2 rises along the inner wall surface of the housing 13 by the transfer air, and the gap It passes through 24a and is discharged from the exhaust port 7 to the outside of the grinding device 1.

  Of the concrete waste 2 subjected to the second grinding process, the one having a heavy specific gravity, that is, the aggregate 3 from which the filler 4 has been peeled off, is not blown up by the conveying air and is blown through the gap 24b. It falls to the carrier air chamber 23b.

  The aggregate 3 dropped to the second transfer air chamber 23b is scraped by the scraper 19 that rotates integrally with the drive shaft 16, and the scraped aggregate 3 falls to the discharge port 12, The aggregate 3 dropped to the discharge port 12 is discharged to the outside by the rotary valve 27.

  The rotary valve 27 can be rotated at a variable speed, and the discharge amount of the aggregate 3 to the outside of the grinding device 1 varies depending on the rotational speed of the rotary valve 27. Accordingly, the residence time of the concrete waste material 2 in the second conveying air chamber 23b and the gap 24b, that is, the degree of grinding (processing time) of the second grinding process for the concrete waste material 2 is the rotational speed of the rotary valve 27. Therefore, the rotational speed of the rotary valve 27 is controlled in accordance with the desired degree of grinding of the second grinding process.

  As described above, in this embodiment, the grime portion 29 is fixedly provided on the chute 28, the grime table 17 is rotated, and the grime table 17 and the grime portion 29 are the first. Since the concrete waste material 2 that has been subjected to the grinding process is moved to the outside of the grinding table 17 by the rotational centrifugal force of the grinding table 17, concrete is separately added to the grinding machine 1. It is not necessary to provide a discharge mechanism for the waste material 2, and the cost can be reduced. Further, since it is possible to continuously perform the grinding process without stopping the grinding machine 1 for discharging the concrete waste material 2, the increase in the processing amount of the concrete waste material 2 per unit time, the processing amount It is possible to improve the grinding efficiency such as improvement of the peeling efficiency of the filler 4 due to the increase in the amount of increase and reduction of power consumption due to the necessity of restarting the grinding machine 1.

  Further, the inner periphery material guide 34 and the outer periphery material guide 36 are provided in the grind portion 29, and the opening ratio of the inner periphery side opening 35 in the inner periphery material guide 34 and the outer periphery material guide 36 are It is possible to set the residence time of the concrete waste material 2 on the grinding table 17, that is, the degree of grinding (processing time) of the first grinding process, depending on the opening ratio of the outer circumferential side opening 37. There is no need to increase the size of the grinding device 1 when changing the degree of grinding in the grinding process, and cost reduction and space saving can be achieved.

  In addition, since the outer peripheral opening 37 does not overlap the inner peripheral opening 35, the concrete waste material 2 collides with the outer material guide 36 after passing through the inner peripheral opening 35, and the speed is increased. It is possible to prevent the concrete waste material 2 from directly colliding with the inner wall of the housing 13 and wear the inner wall of the housing 13.

  Further, the housing 13 is an airtight housing, and is rubbed in the housing 13, and the peeled filler 4 is discharged from the exhaust port 7 and collected by the dust collector 8 through the duct 5a. Therefore, it is possible to prevent the filler 4 generated during the grinding process from being discharged into the atmosphere.

  Further, since the grinding cone 18 is provided on the drive shaft 16 and the second grinding process is performed between the grinding cone 18 and the inner wall of the housing 13, Two different types of grinding processes can be performed, and the grinding efficiency such as the peeling efficiency of the filler 4 with respect to the concrete waste 2 can be improved, and a high-quality aggregate 3 can be obtained.

  A rotary valve 27 for discharging the aggregate 3 to the outside of the grinding device 1 can be rotated at a variable speed, and the rotational speed of the rotary valve 27 causes the second conveying air chamber 23b and the gap 24b to rotate. Since it is possible to set the residence time of the concrete waste material 2 to be processed, that is, the degree of grinding (processing time) of the second grinding process, the grinding process is performed when changing the degree of grinding in the second grinding process. There is no need to increase the size of the device 1, and cost reduction and space saving can be achieved.

  Further, the separation efficiency of the filler 4 in the first grinding process and the second grinding process varies depending on the quality of the concrete waste material 2 put into the grinding machine 1, so that the first flow rate adjusting damper is changed. 25 and the opening of the second flow rate adjusting damper 26 are adjusted, and the flow rate of the carrier air flowing into the first carrier air chamber 23a and the second carrier air chamber 23b is adjusted, so that it is separated from the concrete waste material 2. The filler 4 can be efficiently fed to the dust collector 8 (see FIG. 1).

  Further, since the grind table 17, the grind cone 18, and the scraper 19 are integrally rotated through the drive shaft 16, the first grime process and the second grind process are performed. The number of motors may be one, and the cost can be reduced and the apparatus can be downsized.

  In addition, separation of the aggregate 3 and the filler 4 becomes easy by heating the concrete waste material 2. Accordingly, a heating device is provided in the duct 5b to heat the air for conveyance, or the duct 5b is discharged from a factory of another industry such as a boiler or a cement factory through the outside air introduction damper 30 (see FIG. 1). It can be said that the waste concrete 2 is heated by supplying high-temperature conveying air into the housing 13 by introducing combustion exhaust gas or the like to improve the efficiency of the grinding process. Not long.

  Further, the exhaust fan 6 and the dust collector 8 may be omitted, the aggregate 3 and the filler 4 may be exhausted after grinding the concrete waste material 2 and the aggregate 3 and the filler 4 may be separately selected later. .

DESCRIPTION OF SYMBOLS 1 Grinding device 7 Exhaust port 12 Discharge port 13 Housing 16 Drive shaft 17 Grinding table 18 Grinding cone 28 Chute 29 Grinding portion 33 Grinding pin 34 Inner peripheral material guide 35 Inner peripheral side opening 36 Outer peripheral material guide 37 Outer periphery Side opening

Claims (6)

  A grime device for removing aggregate from concrete waste by grime processing, wherein the grime device is fixedly provided at a housing, a chute for throwing the concrete waste material into the housing, and a lower end of the chute, A grind portion having a grind pin projecting downward, a drive shaft provided concentrically below the chute, and a grind table provided at the upper end of the drive shaft so as to face the grind portion, A drive device that rotationally drives the grind table via the drive shaft, and the grind pin and the grind table that rotates relative to the grind pin are used to dispose of the concrete waste material introduced from the chute. A surimi device characterized by performing a surimi process.   The grind portion further includes a cylindrical inner peripheral material guide provided on the outer peripheral side of the surimi pin, and a cylindrical outer peripheral material guide provided on the outer peripheral side of the inner peripheral material guide. A plurality of rectangular inner circumferential openings are formed at equal intervals in the circumferential material guide, and a plurality of rectangular outer circumferential openings are formed at equal intervals in the outer material guide, and the inner circumferential opening relative to the inner material guide The surging device according to claim 1, wherein an opening ratio of the outer peripheral side with respect to the outer peripheral material guide is set corresponding to a processing time of the first surimi processing.   The surging device according to claim 2, wherein the outer peripheral side opening is not overlapped with the inner peripheral side opening.   A grind cone provided in the middle of the drive shaft and rotating integrally with the grind table via the drive shaft, and the grind cone and the concrete cone with respect to the waste concrete dropped from the grind table The surging apparatus according to any one of claims 1 to 3, wherein the second surfacing process is performed with an inner wall of the housing.   In a space formed between the first intake port for supplying the conveying air to a space formed between the surimi table and the surimi cone, and the lower surface of the inner wall of the housing. The surging apparatus according to claim 4, further comprising a second air inlet for supplying the air for conveyance.   The surimi device according to claim 5, wherein the conveying air heated from the first air inlet and the second air inlet is supplied.

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