JP5612331B2 - Solid matter crusher - Google Patents

Description

  The present invention relates to a solid material pulverizer, and more particularly to a solid material pulverizer that pulverizes a solid mass after being dehydrated by solid-liquid separation or the like and discharges it.

  There is a demand for a solid material crusher in which a lump of solid material having a diameter of, for example, several centimeters to several tens of centimeters is sequentially added, and pulverized into particles having a diameter of a certain value or less, for example, about 5 mm. As the configuration of the pulverization mechanism of the solid material pulverizer, it is conceivable to use the configuration of the kneading mechanism of the kneading device previously proposed by the present applicant (see Patent Documents 1 and 2). The kneading apparatus stirs and kneads a mixture of a powdery substance and a liquid. The kneading mechanism has two rotating shafts installed in parallel with each other, and a plurality of kneading members (projecting members) such as rods and paddles are provided on the outer peripheral surface of each rotating shaft. . Then, by rotating the two rotating shafts at non-uniform speeds in opposite directions, each kneading member stirs the mixture of the powdery substance and the liquid and kneads them while conveying them in the axial direction of the rotating shaft. At that time, the kneading members of the two rotating shafts can also be configured to perform so-called self-cleaning in which the outer peripheral surface of the mating rotating shaft and the kneaded material adhering to the kneading member are scraped off.

  If such a kneading mechanism configuration is used in the crushing mechanism of a solid material crusher, a plurality of kneading members of two rotating shafts continuously apply a force repeatedly to the solid mass to form the mass. It can be pulverized into granules. Further, even when the solid matter contains moisture and has strong adhesion, it is considered that the above self-cleaning can be performed without any trouble.

JP-A-10-277376 JP 2006-239554 A

  If the configuration of the kneading apparatus as described above is utilized, it is possible to pulverize the lump of solid matter into particles. However, if the structure is used as it is, it is impossible to take out and discharge only the granular material having a diameter of a certain value or less from the pulverized material while pulverizing the lump of solid material. That is, it is difficult to uniformly form all of the discharged matter with a diameter of a certain value or less. And a part of the discharged product becomes a particle or a lump whose diameter is larger than the certain diameter, and the other part becomes a powder form because the diameter becomes too small, and when it contains moisture, it becomes a kneaded product, Problems arise.

  Therefore, for example, in order to take out only a granular material having a diameter equal to or less than a certain size while pulverizing the charged solid mass, in the configuration of the kneading apparatus as described above, a plurality of protruding members are provided on the outer peripheral surface. A structure in which screens (screens) made up of a plurality of bars are provided below a plurality of horizontally extending rotating shafts in the extending direction of the rotating shafts is conceivable. The plurality of bars of the screen are arranged, for example, at a predetermined interval so that a gap is formed between the bars, and the lump of solid matter is pulverized and pulverized by the plurality of projecting members of the rotating shaft. The crushed material is screened through the gaps between the bars of the screen.

  With such a configuration, it is considered that only the discharge product that has been uniformly pulverized into particles having a constant diameter or less can be taken out via the screen, but the pulverized product contains moisture, etc. It is anticipated that the screen may become clogged, for example, by staying narrowly between the bars of the screen. If the screen is once clogged with such a configuration, it is considered that troublesome maintenance work such as stopping the operation of the plant and cleaning the screen becomes necessary.

  Therefore, in view of the above problems, the object of the present invention is to pulverize a solid lump into a granular form, and to discharge only the discharged substance uniformly pulverized into particles having a constant diameter or less through a screen. An object of the present invention is to provide a solid material crusher that can be taken out without clogging and can reduce troublesome maintenance work.

In order to solve the above-mentioned problems, in the present invention, a solid material crusher that pulverizes and discharges a lump of solid material that has been charged into a granule, each of which is provided with a plurality of projecting members standing on the outer peripheral surface thereof in a horizontal manner. The first and second rotating shafts that are driven to rotate at different speeds in the opposite directions by obtaining rotational driving force from the same motor , and the rotating shafts extend below the first and second rotating shafts. a screen comprising a plurality of screen rods arranged in the direction, among the plurality of screen bar, every other screen rod the first screen bar, the screen bar positioned between the first screen bar first As the second screen bar, the first screen bar is driven to rotate by the power transmitted from the first rotary shaft that is driven to rotate by the motor, and the second screen bar is driven to rotate by the motor. A pulley mechanism that rotates in the reverse direction at different rotational speed than the first screen bar by power transmitted from the second rotating shaft, the provided mass the first and second of the thrown-in solid A configuration is adopted in which the pulverized material is pulverized by the plurality of projecting members that are rotated by rotation of the rotation shaft, and the pulverized pulverized material is discharged through the gaps between the plurality of screen bars.

  According to the above configuration, the screen rods adjacent to each other in the screen can be driven to rotate in different directions, and the rotational speeds of the screen rods can be different from each other. Solid lump can be crushed into particles by the projecting members of multiple rotating shafts, and only the effluent pulverized uniformly into particles with a constant diameter or less can be taken out through the screen, reducing troublesome maintenance work. There is an excellent effect of being able to.

It is a partially broken side view of the solid substance grinder which employ | adopted this invention. It is the side view which showed the inside of the crushing part housing | casing of FIG. 1 transparently. It is a top view of the crushing part housing | casing of FIG. It is the top view which looked at the rotating shaft from the upper part. It is explanatory drawing which showed the structure of the drive system of a grinding | pulverization part housing | casing from the right side of FIG. 2 and FIG. It is explanatory drawing which showed the structure of the drive system of a grinding | pulverization part housing | casing from the left of FIG. 2 and FIG. It is the top view which showed the structure of the rotating shaft which stirs and grind | pulverizes using a paddle instead of a rod. It is a top view of a rotating shaft when the arrangement of rods of the rotating shaft is changed to make the solid material transport direction one direction.

  Hereinafter, embodiments of the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  1 to 5 illustrate the configuration of a solid material grinder (hereinafter also simply referred to as a grinder) employing the present invention. Here, FIG. 1 is a partially broken side view of a solid material crusher adopting the present invention, and FIG. 2 is a side view transparently showing the inside of the crushing part housing 22 of FIG. 3 to 5 show a detailed structure of a portion of the crushing section casing 22, FIG. 3a is a top view showing the crushing section casing of FIG. 1 with the rotary shafts 8 and 9 removed, and FIG. 4 is a top view of the rotary shafts 8 and 9 when viewed from above, FIG. 4 is an explanatory view showing the structure of the drive system of the crushing unit housing from the right side of FIG. 2 (FIG. 3), and FIG. It is explanatory drawing which showed the structure of the drive system of a grinding | pulverization part housing | casing. Hereinafter, the structure of the crusher of the present embodiment will be described with reference to FIGS.

  In FIG. 1, 1a is a lower frame, 1b is an upper frame, 1c, 1d, and 1e are frame stands. These are assembled to form a frame as a support member. On the frame, constituent members other than the frame such as a pulverizing mechanism of the pulverizer are assembled and supported. An external belt conveyor (not shown) is disposed between the lower frame 1a and the upper frame 1b or below the lower frame 1a.

  Bearing stands 2 and 3 are fixed on the upper frame 1 b, a bearing 4 is fixed to the bearing stand 2, and a bearing 5 is fixed to the bearing stand 3. The bearings 4 and 5 are only shown for the rotating shaft 8 described later, but actually the bearing stands 2 and 3 have bearings for the rotating shaft 9 (FIGS. 3b, 4 and 5). (Not shown) is also provided. These bearings rotatably support both end portions of the rotary shaft 8 (9).

  As shown in FIGS. 4 and 5, the rotary shafts 8 and 9 are horizontally supported in parallel along the other party's axial direction at the same height (see also FIG. 3 b). It should be noted that they may not be exactly the same height but may be substantially the same height, and may be not horizontal but substantially horizontal. Gears 12 and 13 are fixed to the right ends of the rotary shafts 8 and 9 (FIG. 3a) and mesh with each other.

  A unit of the motor 17 and the speed reducer 16 is provided on the upper frame 1b. The output shaft 16 a of the speed reducer 16 is connected to the right end portion of the rotary shaft 8 through shaft couplings 15 and 14. The rotational driving force of the motor 17 is transmitted to the rotary shaft 8 through the speed reducer 16 and the shaft couplings 15 and 14. Thereby, the rotary shaft 8 is rotationally driven as a drive shaft. Further, the rotational driving force is transmitted to the rotary shaft 9 through the gears 12 and 13. As a result, the rotary shaft 9 follows the rotary shaft 8 as a driven shaft and rotates in the direction opposite to the rotary shaft 8.

  On the other hand, the intermediate part of the rotating shafts 8 and 9 is formed as a large-diameter part having a larger diameter than both end parts. The large diameter portions of the rotary shafts 8 and 9 have the same diameter. A plurality of rods 10 are erected on the outer peripheral surface of the large-diameter portion of the rotary shaft 8, and a plurality of rods 11 are also erected on the outer peripheral surface of the large-diameter portion of the rotary shaft 9 (FIG. 3b, FIG. 4, FIG. 5). The rods 10 and 11 are of the same round bar shape, and are used to pulverize the lump by applying repeated force continuously to the lump of solid matter put into the crushing unit casing 22 described later of the crusher. It is a protruding member. Instead of the rods 10 and 11, for example, a protruding member having another shape such as a rectangular plate shape may be provided.

  In this embodiment, the self-cleaning is performed as the rotary shafts 8 and 9 rotate during the pulverization operation. That is, the plurality of rods 10 and 11 are configured to scrape off the solid matter attached to the outer peripheral surface of the large-diameter portion of the rotating shafts 9 and 8 and the rods 11 and 10. For this reason, in this embodiment, the arrangement of the rods 10 and 11 is configured as follows.

  The rods 10 are arranged along a single spiral line. That is, the rods 10 are arranged so as to be spirally arranged at a predetermined angular distance in the axial direction of the rotary shaft 8 and at an angular pitch of 45 ° that divides 360 ° of the entire circumference into eight equally in the circumferential direction. (See FIGS. 4 and 5). The rod 11 is also arranged so as to be lined up along one spiral line at the predetermined equal distance in the axial direction of the rotating shaft 9, basically like the rod 10. However, in the circumferential direction, they are arranged so as to be spirally arranged at an angular pitch of 36 ° that divides 360 ° into 10 equal parts. Further, the spiral in which the rods 11 are arranged is a reverse spiral from the spiral formed by the arrangement of the rods 10.

  In addition, as will be described later, in order to convey the solid matter to the center, the spiral arrangement of the rods mounted on the same rotation shaft is also reverse spiral in the right half and the left half as viewed in the axial direction. For example, as shown in FIG. 2, the arrangement of the rod 10 in the section A corresponding to the left half of the rotating shaft 8 is a reverse spiral arrangement with respect to the rod 10 in the section B corresponding to the right half. ing. The same applies to the rod 11 of the rotating shaft 9, and as shown in FIG. 3b, the arrangement of the rod 11 in the section corresponding to the left half of the rotating shaft 9 is the same as that of the rod 11 in the section corresponding to the right half. Is in a reverse spiral arrangement. Accordingly, the opposing rods 10 and 11 of the rotary shafts 8 and 9 are arranged in a reverse spiral shape, and the arrangement of the rods 10 (11) is reversed in the left half and the right half of the same rotary shaft 8 (9). It is spiral. The rods 10 and 11 are arranged at positions facing each other in a direction perpendicular to the axial direction of the rotary shafts 8 and 9.

  Moreover, the rotating shafts 8 and 9 are arrange | positioned in the position where the front-end | tip of the rods 10 and 11 approaches the outer peripheral surface of the rotating shaft which opposes as the rotating shafts 8 and 9 rotate.

  The rotating shafts 8 and 9 are driven to rotate at unequal speeds. The rotation speed ratio of the rotary shafts 8 and 9 per unit time (ratio of the reciprocal of the gear ratios of the gears 12 and 13) is the same as the ratio of the angular pitches, here 45 °: 36 °, ie 5: 4. To do. With such a configuration, the rods 10 and 11 do not collide with each other. Further, the ratio of the helical pitch formed by the arrangement of the rods 10 and the helical pitch formed by the arrangement of the rods 11 is opposite to the rotation ratio (5: 4) of the rotation shafts 8 and 9, as shown in FIG. 3b. That is, 1: 1.25, and the transport speeds in the axial direction of the rotary shafts 8 and 9 are the same.

  Needless to say, the arrangement of the rods 10 and 11 is not limited to the above. There may be a plurality of spiral lines along which the rods 10 and 11 are arranged. Further, the ratio of the angular pitch and the rotation speed ratio are not limited to 5: 4. Generally speaking, N may be set to an integer of 2 or more and N: N-1.

  Moreover, the support stand as a support member shown with the code | symbol 20 in FIGS. 1-3 is provided in two places on the upper flame | frame 1b. The support base 20 is attached to the upper frame 1b via a vibration isolating rubber 21.

  A pulverization section casing (hereinafter simply referred to as a casing) indicated by reference numeral 22 in FIGS. 1 and 2 is supported on the two support bases 20. The housing 22 accommodates a portion where the rods 10 and 11 of the rotary shafts 8 and 9 are provided. That is, the rotation space where the rods 10 and 11 rotate with the rotation of the rotation shafts 8 and 9 is surrounded. The casing 22 is provided with a screen 27 facing the lower side of the rotation space of the rods 10 and 11 (FIGS. 2 to 5. In FIG. 1, the arrangement range of the screen 27 is indicated by a one-dot chain line. )

  The casing 22 is configured in a frame shape made of metal or the like with an upper portion and a lower portion having openings, and includes side plates 25 and 26 that support the screen 27. The upper part of the housing 22 is an opening, from which a lump of solid matter to be crushed is put into the housing 22.

  As shown in FIGS. 2 and 3, the screen 27 at the bottom of the housing 22 includes a plurality of (for example, several tens) linear screen bars (271, 272, 275, and 276 described later). In FIG. 1, the screen bars are not shown individually, and only the outline of the entire area where the screen bars are arranged is indicated by a one-dot chain line. 4 and 5, the left and right side plates 25 and 26 allow the screen rods (271, 272, 275, and 276 described later) to slightly cover the rotation range of the rods 10 and 11 in an arc shape. It is supported rotatably.

  In this embodiment, the cross-sectional shape of the screen bar is circular (see FIGS. 4 and 5), but other shapes such as a regular triangle, a square, and a regular hexagon may be used.

  The screen rods (271, 272, 275, and 276 described later) extend straight in the direction in which the rotary shafts 8 and 9 extend, that is, horizontally, and the lengths of the rods 10 and 11 of the rotary shafts 8 and 9 stand upright. A little longer than the large diameter part.

  The lower portions of the left and right side plates 25 and 26 are formed in a shape combining two arcs so that shaft support portions (bearings and the like: details not shown) of these screen rods (271, 272, 275, and 276 described later) can be disposed. Has been.

  As shown in FIG. 1, the side plates 25, 26 are fixed at their lower ends to the two support bases 20 by bolting or the like, so that the entire housing 22 is mounted on the support base 20. It is supported by. The side plates 25 and 26 cover the left and right sides (both sides in the axial direction of the rotation shafts 8 and 9) of the rotation space of the rods 10 and 11 in FIGS.

  Although not shown in detail, the side plates 25 and 26 have holes through which both end portions of the rotary shafts 8 and 9 are inserted. Since the casing 22 is rubber-mounted, the diameter of the hole is set so that the edges of the holes do not hit or rub against the outer peripheral surfaces of both ends of the rotary shafts 8 and 9. Make it appropriately larger than the diameter.

  In this embodiment, the screen rods (271, 272, 275, and 276 described later) that rotate the screen 27 are rotated by using the power extracted from the rotary shafts 8 and 9 by using the pulley mechanisms 50 and 60 (FIG. 1). To drive. Details of the pulley mechanisms 50 and 60 (FIG. 1) are shown in FIGS. In this embodiment, adjacent screen bars (271, 272, 275, and 276 described later) are rotationally driven in different directions, and adjacent screen bars are controlled to have different rotation speed ratios (the above-described rotation shaft 8). , 9 is used in which the rotation speed ratio is different). In this way, the lump of solid matter that has been charged is crushed into particles without clogging the screen 27, and only the discharge that has been uniformly crushed into particles having a diameter equal to or less than a certain diameter is passed through the screen 27. It can be taken out.

  Here, the pulley mechanism (50 and 60 in FIG. 1) for driving the screen rod (271, 272, 275, and 276 described later) will be described in detail with reference to FIGS.

  FIG. 4 is a perspective view of the structure of the drive system of the crushing unit housing from the right side of FIGS. 2 and 3a, and FIG. 5 is the left side of FIGS. 2 and 3a.

  4, small pulleys 271a, 271a,..., 272a, 272a... Are attached to the ends of the screen rods 271, 271..., 272, 272. .., 272a, 272a,... Are wound with a belt 273 (left side of the rotary shaft 8) and 274 (right side of the rotary shaft 9) so as to form a bow shape. The black circles between the screen bars 271, 271 ... and the black circles between the screen bars 272, 272 ... correspond to the screen bars 275, 275 ... and 276, 276 ... shown in FIG.

  Further, pulleys 55 and 56 are attached to the respective shaft ends of the screen bars 271 and 272, and a belt 57 is wound around the pulleys 55 and 56. The belt 57 is further wound around the pulley 54.

  A large pulley 52 is coaxially coupled to the pulley 54, and the pulley 54 and the large pulley 52 are rotatably supported in the pulley mechanism 50 by support means (not shown), and the large pulley 52 is interposed via a belt 53. Power is transmitted from a pulley 51 that is coaxially mounted on the rotary shaft 9.

  In the pulley mechanism 50 described above, power is transmitted from the rotary shaft 9 to the pulleys 55 and 56 via the pulley 51 to the belt 53 to the pulley 52 to the pulley 54 to the belt 57, whereby one of the screen bars 271 and 272 rotates. Further, all of the remaining screen bars 271 and 272 are rotationally driven via belts 273 and 274 to small pulleys 271a, 271a, and 272a, 272a. If the rotation shaft 9 is driven to rotate counterclockwise as indicated by the arrow in the figure, the screen bars 271, 271... 272, 272. .

  On the other hand, the structure of the pulley mechanism 60 on the opposite side of the housing 22 shown in FIG. 5 is the same as described above.

  .., 275, 275 (each indicated by a black circle) are fitted with small pulleys 276a, 276a, and 275a, 275a, respectively, outside the side plate 25. .., And 275a, 275a... Are wound with a belt 278 (left side of the rotary shaft 9) and 277 (right side of the rotary shaft 8) so as to form a bow shape. The white circles between the screen bars 276, 276... And the white circles between the screen bars 275, 275... Correspond to the screen bars 272, 272.

  Further, pulleys 65 and 66 are attached to the respective shaft ends of the screen bars 276 and 275, and a belt 67 is wound around the pulleys 65 and 66. The belt 67 is further wound around a pulley 64.

  A large pulley 62 is coaxially coupled to the pulley 64, and the pulley 64 and the large pulley 62 are rotatably supported in the pulley mechanism 60 by support means (not shown), and the large pulley 62 is interposed via a belt 63. Power is transmitted from a pulley 61 that is coaxially mounted on the rotary shaft 8.

  In the pulley mechanism 60 described above, power is transmitted from the rotary shaft 8 to the pulleys 65 and 66 via the pulley 61 to the belt 63 to the pulley 62 to the pulley 64 to the belt 67, whereby one of the screen bars 276 and 275 rotates. Further, all of the remaining screen bars 276 and 275 are rotationally driven through belts 278 and 277 to small pulleys 276a, 276a, and 275a, 275a. If the rotary shaft 8 is driven to rotate counterclockwise as indicated by the arrow in the figure, the screen bars 276, 276,... 275, 275, etc. are also driven counterclockwise. .

  As shown by using white circles and black circles in FIGS. 4 and 5, the screen bars 271, 271, and 275 275 of the screen 27 are alternately arranged. .. And 275, 275... Are rotationally driven in opposite directions by the pulley mechanisms 50 and 60 described above, as is apparent from the rotational drive directions indicated by the arrows in FIGS. If the reduction ratios of the pulleys of the pulley mechanisms 50 and 60 are the same, the rotation speed ratio of the screen rods 275, 275, and 271 271 driven by the rotary shafts 8 and 9 is 5: 4. It becomes.

  Further, as shown by using white circles and black circles in FIGS. 4 and 5, the screen bars 272, 272, and 276 276 of the screen 27 are alternately arranged every other line. The screen bars 272, 272, and 276, 276 are rotationally driven in opposite directions by the pulley mechanisms 50 and 60, respectively, as is apparent from the rotational driving directions indicated by arrows in FIGS. Further, if the reduction ratios of the pulleys of the pulley mechanisms 50 and 60 are the same, the rotation speed ratio of the screen rods 278, 278..., 272, 272. : 4.

  Next, the pulverizing operation of the solid lump by the pulverizer of this embodiment will be described. During the pulverization operation, a solid lump having a diameter of, for example, several centimeters to several tens of centimeters is sequentially put into the housing 22 from above and the motor 17 is driven. Thereby, the rotating shafts 8 and 9 rotate in opposite directions, and the rods 10 and 11 rotate in opposite directions. Further, each of the plurality of screen bars 271, 272, 275, 276 of the screen 27 rotates via the pulley mechanisms 50, 60.

  At this time, the screen rods 271, 272, 275, 276 adjacent to the screen 27 are rotationally driven in different directions, and the rotational speeds thereof are different from each other. The screen rods 271, 272... Have a rotational speed ratio of 5: 4, and the screen rods 276, 276. 275 and 276 are rotationally driven.

  The lump of solid matter that has been thrown in is repeatedly struck or pressed by a plurality of rotating rods 10 and 11 to apply force, and is sequentially pulverized into granules. The pulverized product that has been pulverized into particles is applied with force while being stirred, and pulverized into smaller particles. Here, the plurality of rods 10 and 11 arranged so as to line up on the spiral line act similarly to the screw. As a result, the solid mass is pulverized and stirred in the order of particles along the rotary shafts 8 and 9 in the right half section (section B in FIG. 2) in FIGS. 1, 2, 3a and 3b. In the left half section (section A in FIG. 2), it is transported in the right direction and moved to the center. In the meantime, when a pulverized product whose particle diameter is smaller than the size of the gap between the screen bars 27 moves to the screen bar 27 by stirring, it passes through the gap between the screen bars 27 and goes out of the housing 22. It is screened off and discharged onto an external belt conveyor (not shown) disposed below the housing 22, for example. That is, only the granular material having a diameter smaller than a certain value is taken out from the pulverized material through the screen 27 and discharged out of the housing 22. The discharged granular material is conveyed to another place by a belt conveyor.

  As described above, according to the present embodiment, the screen rods adjacent to each other on the screen 27 can be driven to rotate in different directions, and the rotational speeds thereof can be different from each other. Without causing clogging, the charged solid mass is pulverized into particles by the rods 10 and 11 of the rotary shafts 8 and 9, and only the discharged material that is uniformly pulverized into particles having a constant diameter or less passes through the screen 27. Can be taken out, and troublesome maintenance work can be reduced.

  Further, in the above configuration, during the crushing operation, the rotary shafts 8 and 9 rotate at an unequal speed with a rotation ratio of 5: 4. For this reason, the rods 10 and 11 that face each other at the same position in the axial direction of the rotary shafts 8 and 9 repeat the operation of approaching and separating from each other with the rotation. Thereby, when the solid substance has adhered to each other, the solid substance adhering to each other can be scraped off. Since the rotation speed ratio and the above-described angular pitch ratio of the rods 10 and 11 are the same, the rods 10 and 11 do not collide with each other. Further, as the rotary shafts 8 and 9 rotate, the tip portions of the rods 10 and 11 pass through the vicinity of the outer peripheral surface of the large diameter portion of the counterpart rotary shafts 9 and 8. For this reason, if solid matter adheres to the outer peripheral surface of the large-diameter portion of the rotary shafts 8 and 9, it can be scraped off by the rods 11 and 10. In this way, self-cleaning can be performed. Therefore, even if the solid matter contains moisture and has strong adhesion, the pulverization operation can be performed efficiently without any problem.

  As described above, according to the solid material pulverizer of this embodiment, the diameter of the solid material that has been charged is pulverized into particles while passing through the screen 27 and without clogging the screen 27. It is possible to efficiently perform the operation of taking out and discharging only the granular material having a certain value or less from the pulverized material. Moreover, the configuration of the solid material crusher of this embodiment is simple and can be realized at low cost.

  In the embodiments described above, the screen rod 27 of the screen 27 is exemplified as a round bar, but screen rods having different cross-sectional shapes such as a polygonal cross-section can also be used. In the embodiment, the two rotating shafts 8 and 9 are provided, but a plurality of three or more rotating shafts may be provided.

  In the embodiment, the pulverized solids are conveyed along the rotation shafts 8 and 9 to the central portion. However, they are conveyed along the rotation shafts 8 and 9 in the opposite directions to be circulated. It can also be. In order to do so, the rods of the rotary shafts 8 and 9 are arranged as shown in FIG. Further, as shown in FIG. 7, the rods 10 of the rotating shaft 8 are all along the same spiral line, and the rods 11 of the rotating shaft 9 are also along the line of the rotating shaft 8 and the reverse spiral shape. The rotary shafts 8 and 9 can be conveyed in one direction (left direction) by being reversely rotated at a ratio of 5: 4 which is the same ratio as the ratio of the angular pitches of the rods 10 and 11 (45 °: 36 °). . Thus, the method of conveying the pulverized material while pulverizing it is not limited to that of the embodiment, and an appropriate one can be selected according to the characteristics of the solid mass to be pulverized.

  In the above-described embodiment, the rods 10 and 11 are exemplified as the protruding members provided on the outer peripheral surfaces of the rotary shafts 8 and 9. However, the present invention is not limited to this, and as shown in FIG. Instead of the rod, paddles 40 and 41 may be provided on the rotary shafts 8 and 9.

  In the example shown in FIG. 6, the paddle 40 is erected on the rotating shaft 8 in a spiral shape with an angular pitch of 90 degrees each time a predetermined distance is provided in the axial direction. Each time the distance is equal to the predetermined distance in the direction, the angle is shifted by 72 degrees, and the spiral of the rotary shaft 8 is erected in a reverse spiral shape. In this case, the ratio of the angular pitch of the paddles 40 and 41 is the same as the rotational speed ratio of the rotary shafts 8 and 9, and the ratio of the helical pitch formed by the paddles 40 and the helical pitch formed by the paddles 41 is the rotational shaft 8. , 9, the self-cleaning effect is obtained as in the case of the rods 10 and 11 in the above-described embodiment, and the paddle has a larger stirring and crushing effect than the rod, and the efficiency In particular, it becomes possible to pulverize and discharge the solid matter into a granular form.

DESCRIPTION OF SYMBOLS 1a Lower frame 1b Upper frame 1c-1e Frame stand 2, 3 Bearing stand 4, 5 Bearing 8, 9 Rotating shaft 10, 11 Rod 12, 13 Gear 14, 15 Shaft coupling 16 Reduction gear 17 Motor 20 Support base 21 Anti-vibration rubber 22 Crushing section housing 25, 26 Side plate 27 Screen 271, 272, 275, 276 Screen rod 271a, 272a, 275a, 276a Small pulley 40, 41 Paddle 50, 60 Pulley mechanism 51, 52, 54, 55, 56 Pulley 61, 62, 64, 65, 66 Pulley 53, 57, 63, 67 Belt 273, 274, 277, 278 Belt

Claims (4)

A solid material crusher that pulverizes a lump of solid material that has been charged into particles and discharges it,
A plurality of projecting members standing on the outer peripheral surface, extending horizontally, obtaining a rotational driving force from the same motor, and being driven to rotate at opposite speeds in opposite directions ; and
A screen consisting of said first and second plurality of screen bar disposed in the extending direction of the rotary shaft below the rotary shaft,
Among the plurality of screen bars, every other screen bar is a first screen bar, a screen bar positioned between the first screen bars is a second screen bar, and the first screen bar is the motor. The second screen rod is driven to rotate by the power transmitted from the first rotating shaft rotated by the first screen, and the second screen bar is driven to the first screen by the power transmitted from the second rotating shaft rotated by the motor. A pulley mechanism that rotates in a reverse direction at a rotational speed different from that of the rod, and
The charged solid mass is pulverized by the plurality of projecting members rotated by the rotational drive of the first and second rotating shafts, and the pulverized pulverized material passes through the gaps between the plurality of screen bars. Solid matter crusher characterized by being discharged. Before SL first erected projections member to the rotating shaft is arranged helically shifted first angular pitch, the second rotary shaft erected projections member first shifted second angular pitch And the ratio of the first and second angular pitches is the same as the rotational speed ratio of the first and second rotary shafts, and the first and second angular pitches are arranged in a reverse spiral form. The ratio of the spiral pitch formed by the protrusion member of the second rotation shaft and the spiral pitch formed by the protrusion member of the second rotation shaft is an inverse ratio of the rotation speed ratio of the first and second rotation shafts. The solid material pulverizer according to claim 1 . The first and second rotating shafts are arranged such that as the rotating shafts rotate, the tips of projecting members erected on the rotating shafts are positioned close to the outer peripheral surfaces of the opposing rotating shafts. The solid material pulverizer according to claim 1 or 2 . The solid material crusher according to any one of claims 1 to 3, wherein the projecting members erected on the first and second rotating shafts are rods or paddles.

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