JP5971141B2 - Briquette machine - Google Patents

Description

  The present invention relates to a briquette machine for manufacturing briquettes.

  The briquette machine described in the following Patent Document 1 has a fixed roll (first roll) and a movable roll (second roll). The fixed roll and the movable roll are arranged in a space (granulation space) between the support member and the ceiling plate, and are configured to be rotatable via a bearing (bearing unit). Furthermore, the bearing that pivotally supports the movable roll is fixed to the arm, and the movable roll comes into contact with and separates from the fixed roll as the arm rotates. And a raw material is thrown in between a fixed roll and a movable roll, a fixed roll and a movable roll are rotated in the mutually opposite direction, a raw material is pressure-solidified and a briquette is manufactured.

  By the way, when an ignitable raw material (powder such as lime powder) is pressurized and solidified at a high temperature using the briquette machine as described above, it is necessary to prevent the raw material from being ignited. For this reason, the above-mentioned space (granulation space) is sealed, and the space (granulation space) is filled with an inert gas such as nitrogen.

Japanese Patent Laid-Open No. 9-192897

  However, in the above briquette machine, as described above, since the movable roll contacts and separates from the fixed roll, it is necessary to keep the airtightness of the space (granulation space) while allowing the movement of the movable roll. In this case, for example, it is necessary to suppress uneven wear of the bearing due to the raw material entering the sliding portion of the bearing that rotates together with the arm. That is, it is necessary to maintain the airtightness of the space (granulation space) while ensuring the reliability of the briquette machine.

  In view of the above facts, an object of the present invention is to provide a briquette machine that can maintain airtightness of a granulation space while ensuring reliability.

  The briquette machine of Claim 1 is provided in the 1st axial part so that rotation integrally is possible, and is provided in the 2nd axial part so that integral rotation is possible, and it is arrange | positioned in parallel with the said 1st roll. The second roll that compresses and solidifies the raw material in cooperation with the first roll and compresses the briquette, the fixed-side bearing unit that pivotally supports the first shaft portion, and the second shaft portion. And a movable side bearing unit that is movable toward and away from the fixed side bearing unit in the radial direction of the first roll, the first roll and the second roll, and the first shaft portion and the A cover having an opening through which the second shaft portion is inserted, the inside of which is a granulation space, a cylindrical shape, the first shaft portion being disposed inside, and one end portion of which is the cover The other end is fixed to the fixed-side bearing unit. A side air-tight member, and the second shaft portion is formed in a cylindrical shape, and one end portion is fixed to the cover and the other end portion is fixed to the movable-side bearing unit; A movable-side airtight member configured to be able to follow the moving movement of the movable-side bearing unit with respect to the unit.

  In the briquette machine according to the first aspect, the first roll and the second roll are arranged in parallel. The first roll is provided on the first shaft portion so as to be integrally rotatable, and the first shaft portion is pivotally supported by the fixed-side bearing unit. Moreover, the 2nd roll is provided in the 2nd axial part so that integral rotation is possible, and the 2nd axial part is pivotally supported by the movable side bearing unit. And a 2nd roll is contacted / separated with respect to a 1st roll because a movable side bearing unit is contacted / separated to the radial direction of a 1st roll with respect to a fixed side bearing unit.

  Moreover, the 1st roll and the 2nd roll are covered with the cover, and the inside of the cover is made into the granulation space. The cover has an opening, and the first shaft portion and the second shaft portion are inserted through the opening. Thereby, the 1st axis part and the 2nd axis part are projected from the cover, respectively, and are connected to the fixed side bearing unit and the movable side bearing unit.

  Furthermore, a cylindrical fixed-side airtight member is provided between the cover and the fixed-side bearing unit. One end of the fixed-side airtight member is fixed to the cover, the other end of the fixed-side airtight member is fixed to the fixed-side bearing unit, and the first shaft portion is disposed inside the fixed-side airtight member. . For this reason, while the inside of a stationary-side airtight member and the inside of a granulation space are connected by an opening part, the opening in the other end part of a stationary-side airtight member is obstruct | occluded by a stationary-side bearing unit. Thereby, the airtightness of the granulation space is ensured.

  Here, a cylindrical movable side airtight member is provided between the cover and the movable side bearing unit. One end of the movable airtight member is fixed to the cover, and the other end of the movable airtight member is fixed to the movable bearing unit. For this reason, the inside of the movable side airtight member and the inside of the granulation space are communicated by the opening, and the opening at the other end of the movable side airtight member is closed by the movable side bearing unit. Thereby, the airtightness of the granulation space is ensured.

  In addition, the movable side airtight member can follow the moving movement of the movable side bearing unit relative to the fixed side bearing unit. For this reason, when the movable bearing unit comes in contact with or separates from the fixed bearing unit, that is, when the movable bearing unit moves relative to the cover, the cover formed by the movable airtight member and the movable bearing unit The movable side airtight member follows the movement of the movable side bearing unit while maintaining the connection state therebetween. Therefore, the airtightness of the granulation space can be ensured while allowing the movement of the second roll.

  Furthermore, the other end of the fixed side airtight member is fixed to the fixed side bearing unit, and the other end of the movable side airtight member is fixed to the movable side bearing unit. For this reason, the fixed-side bearing unit and the movable-side bearing unit can be arranged outside the granulation space. Thereby, for example, since the raw material (powder) is prevented from entering the sliding portion of the movable bearing unit, the reliability of the briquette machine can be ensured. As described above, the airtightness of the granulation space can be maintained while ensuring the reliability.

  The briquette machine according to claim 2 is the briquette machine according to claim 1, wherein one end portion and the other end portion of the movable side airtight member are bent outward in the radial direction of the second shaft portion. It is characterized by being fixed by a flange member.

  In the briquette machine according to the second aspect, one end and the other end of the movable side airtight member are bent outward in the radial direction of the second shaft portion and fixed by a plate-like flange member. That is, the movable side airtight member is fixed to the cover (or movable side bearing unit) in a state where one end (or the other end) of the movable side airtight member is sandwiched between the flange member and the cover (or movable side bearing unit). ing. For this reason, the adhesiveness between the one end part (or other end part) of a movable side airtight member and a cover (or movable side bearing unit) can be made high. Further, for example, by forming the flange member in an annular shape and fastening the flange member to the cover (or the movable bearing unit), the number of fastening points in the flange member can be increased. Thereby, the adhesiveness between a movable side airtight member, a cover, and a movable side bearing unit can be made still higher. As described above, the airtightness of the granulation space can be increased.

  A briquette machine according to a third aspect is the briquette machine according to the second aspect, wherein the movable side airtight member has flexibility.

  In the briquette machine according to the third aspect, since the movable side hermetic member has flexibility, for example, the movable side hermetic member can be formed of a cloth material or the like. Thereby, the assembly | attachment property of a movable side airtight member can be improved.

  A briquette machine according to a fourth aspect is the briquette machine according to the third aspect, wherein the movable side airtight member is bent and deformed in a state of being recessed toward the second shaft portion.

  In the briquette machine according to claim 4, since the movable side airtight member is bent and deformed in a state of being depressed toward the second shaft portion side, an extra length portion of the movable side airtight member is disposed on the second shaft portion side. The movable side airtight member can be fixed to the cover and the movable side bearing unit.

  In other words, the length of the movable side airtight member is set longer than the distance between the cover and the movable side bearing unit in order to make the movable side airtight member follow the contact and separation of the movable side bearing unit with respect to the fixed side bearing unit. It is preferable to do. In this case, an extra length portion is generated in the movable side airtight member, but one end portion and the other end portion of the movable side airtight member having flexibility are bent outward in the radial direction of the second shaft portion. The movable side airtight member is bent and deformed so as to be recessed toward the second shaft portion side. Therefore, the movable side airtight member can be fixed to the cover and the movable side bearing unit in a state where the extra length portion of the movable side airtight member is disposed on the second shaft portion side. And since a movable side airtight member deform | transforms into the 2nd axial part side, it is suppressed that a movable side airtight member protrudes on the opposite side (diameter direction outer side of a 2nd axial part) to a 2nd axial part. Thereby, even if a surplus part occurs in the movable side airtight member, it is possible to suppress the influence on the members around the movable side airtight member.

  The briquette machine according to claim 5 is the briquette machine according to any one of claims 1 to 4, wherein the movable side airtight member is configured to be openable in a radial direction of the movable side airtight member. ing.

  In the briquette machine according to claim 5, the movable side airtight member is configured to be openable in a radial direction of the movable side airtight member. For this reason, for example, replacement work of the movable side airtight member can be facilitated.

  A briquette machine according to a sixth aspect is the briquette machine according to any one of the first to fifth aspects, wherein the fixed-side airtight member has flexibility.

  In the briquette machine according to claim 6, since the fixed-side airtight member has flexibility, even if the fixed-side bearing unit moves relative to the cover, the fixed-side airtight against the relative movement. The member can follow. That is, when the first roll and the second roll produce briquettes, the first roll is pressed by the second roll. For this reason, even if the first roll (fixed side bearing unit) moves relative to the cover by this pressing, the fixed side airtight member can follow the relative movement.

  According to the briquette machine of Claim 1, the airtightness of granulation space can be maintained, ensuring reliability.

  According to the briquette machine of Claim 2, the airtightness of granulation space can be made high.

  According to the briquette machine of Claim 3, the assembly | attachment property of a movable side airtight member can be improved.

  According to the briquette machine of the fourth aspect, the movable side airtight member can be fixed to the cover and the movable side bearing unit by disposing the surplus portion of the movable side airtight member on the second shaft portion side.

  According to the briquette machine of the fifth aspect, for example, replacement work of the movable side airtight member can be facilitated.

  According to the briquette machine of the sixth aspect, even if the fixed-side bearing unit moves relative to the cover, the fixed-side airtight member can follow the relative movement.

It is a typical plane sectional view (1-1 line sectional view of Drawing 2) showing the briquette machine concerning this embodiment. It is a front view which shows the briquette machine shown by FIG. FIG. 2 is an enlarged view (an enlarged view of a portion A in FIG. 1) showing a fixed state of the movable side sealing member shown in FIG. 1 to a cover and a movable side bearing block.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 2, a briquette machine 10 according to an embodiment of the present invention includes a frame 12 that constitutes an outer frame of the briquette machine 10. The frame 12 includes a pair of upper frames 12 </ b> A that constitute an upper portion of the frame 12 and a pair of lower frames 12 </ b> B that constitute a lower portion of the frame 12. The upper frame 12A and the lower frame 12B are connected by a connecting frame 12C and a center frame 12D that extend in the up-down direction (the directions of arrows D and E in FIG. 2).

  As shown in FIG. 1, a fixed-side bearing block 14 as a pair of fixed-side bearing units is provided between the upper frame 12A and the lower frame 12B. The fixed-side bearing block 14 includes a bearing (not shown) that supports a first shaft portion 22 described later. The fixed-side bearing block 14 is provided with a fixed-side mounting plate 16 for fastening and fixing a fixed-side seal member 54, which will be described later, and the fixed-side mounting plate 16 is formed in a substantially annular plate shape when viewed from the front. Has been.

  A first roll 20 is provided between the pair of fixed bearing blocks 14. The 1st roll 20 is formed in the substantially cylindrical shape, and is provided in the 1st axial part 22 so that integral rotation is possible. Both end portions of the first shaft portion 22 are rotatably supported by the bearings of the fixed-side bearing block 14.

  A movable bearing block 24 as a pair of movable bearing units is provided between the upper frame 12A and the lower frame 12B, and the movable bearing block 24 is fixed to the fixed bearing via the central frame 12D. It is arranged to face the block 14. Further, a liner (not shown) having a grease groove is provided between the movable bearing block 24 and the lower frame 12B. The movable-side bearing block 24 is configured to slide on the liner and come into contact with and separate from the fixed-side bearing block 14. Furthermore, the movable-side bearing block 24 includes a bearing (not shown) that supports a second shaft portion 32 described later. Further, the movable side bearing block 24 is provided with a movable side mounting plate 26 (see FIG. 3) for fastening and fixing a movable side seal member 50 described later. The movable side mounting plate 26 is substantially circular in a front view. It is formed in an annular plate shape.

  A second roll 30 is provided between the pair of movable bearing blocks 24. The 2nd roll 30 is formed in the substantially cylindrical shape, and is provided in the 2nd axial part 32 so that integral rotation is possible. The rotation axis of the second shaft portion 32 is arranged in parallel with the rotation axis of the first shaft portion 22, and both end portions of the second shaft portion 32 are rotatably supported by the bearings of the movable-side bearing block 24. Yes.

  The first shaft portion 22 and the second shaft portion 32 are respectively connected to a drive portion (not shown), and the driving force of the drive portion is transmitted to the first shaft portion 22 and the second shaft portion 32. Thus, the first roll 20 and the second roll 30 are rotated in opposite directions.

  A plurality of concave pockets (not shown) are formed on the outer peripheral surfaces of the first roll 20 and the second roll 30, respectively. And the pocket formed in the 1st roll 20 and the pocket formed in the 2nd roll 30 are formed in the position aligned in the circumferential direction in each outer peripheral surface.

  Further, the first roll 20 and the second roll 30 are covered with a substantially box-shaped cover 36, and the inside of the cover 36 is a granulation space 38. The cover 36 includes an upper cover 36A that forms the upper part of the cover 36 and a lower cover 36B that forms the lower part of the cover 36, and is divided in the vertical direction (see FIG. 2). ). The cover 36 is provided with a supply hole (not shown) so that an inert gas such as nitrogen can be supplied into the granulation space 38 through the supply hole.

  The cover 36 is formed with a circular opening 40 at a position corresponding to the first shaft portion 22 and the second shaft portion 32. The first shaft portion 22 or the second shaft portion 32 is disposed in the opening 40, respectively, and the first shaft portion 22 and the second shaft portion 32 protrude from the cover 36. Further, a cover side mounting plate 42 (see FIG. 3) for fastening and fixing a movable side seal member 50 and a fixed side seal member 54, which will be described later, is provided at the edge of the opening 40. The cover-side mounting plate 42 is formed in a substantially annular plate shape when viewed from the front, and is configured to be divided in the vertical direction corresponding to the cover 36.

  As shown in FIG. 2, a hopper 44 is provided above the first roll 20 and the second roll 30, and the hopper 44 is connected to the upper cover 36A. A feeder screw (not shown) is provided in the hopper 44, and the feeder screw is connected to a motor (not shown). Then, when the rotational force of the motor is transmitted to the feeder screw, the raw material (powder) in the hopper 44 flows into the granulation space 38 and is dropped between the first roll 20 and the second roll 30. It is like that. The first roll 20 and the second roll 30 cooperate to pressurize and solidify the raw material so that the briquette is compressed.

  A hydraulic cylinder 46 is disposed on the opposite side of the movable bearing block 24 from the fixed bearing block 14. The hydraulic cylinder 46 is disposed with the direction along the radial direction of the first roll 20 and the second roll 30 as an axial direction, and has a cylinder rod (not shown). Further, a load cell 48 is disposed on the opposite side of the fixed side bearing block 14 from the movable side bearing block 24. When the cylinder rod is actuated, the movable bearing block 24 is pressed toward the fixed bearing block 14 and pressure is applied between the first roll 20 and the second roll 30. . At this time, the pressure between the first roll 20 and the second roll 30 is detected by the load cell 48, and the pressure between the first roll 20 and the second roll 30 can be adjusted.

  On the other hand, as shown in FIGS. 1 and 3, a movable side seal member 50 as a movable side airtight member is provided between the movable side bearing block 24 and the cover 36. The movable-side seal member 50 has a substantially cylindrical shape and is made of a flexible member (in this embodiment, a cloth material coated with silicon rubber). The movable-side seal member 50 is disposed coaxially with the second shaft portion 32 with the second shaft portion 32 disposed therein. One end of the movable side seal member 50 is fastened and fixed to the cover 36, and the other end of the movable side seal member 50 is fastened and fixed to the movable side bearing block 24.

  Specifically, as shown in FIG. 3, one end portion of the movable side seal member 50 is bent outward in the radial direction of the second shaft portion 32. A seal flange member 52 as an annular plate-shaped flange member is provided on the side opposite to the cover 36 with respect to one end of the movable side seal member 50, and a cover side mounting plate for the seal flange member 52 and the cover 36 is provided. 42, one end of the movable side seal member 50 is sandwiched. The seal flange member 52 is fastened and fixed to the cover side mounting plate 42 by a plurality of bolts 60, so that one end of the movable side seal member 50 is fixed to the cover 36.

  Similarly to the one end portion of the movable side seal member 50, the other end portion of the movable side seal member 50 is bent outward in the radial direction of the second shaft portion 32. A seal flange member 52 is provided on the side opposite to the movable bearing block 24 with respect to the other end of the movable seal member 50, and the seal flange member 52 and the movable mounting plate 26 of the movable bearing block 24 Therefore, the other end portion of the movable side seal member 50 is sandwiched. The seal flange member 52 is fastened and fixed to the movable bearing block 24 by a plurality of bolts 60, so that the other end of the movable seal member 50 is fixed to the movable bearing block 24.

  Thereby, the inside of the movable side seal member 50 and the inside of the granulation space 38 are communicated with each other by the opening 40, and the opening at the other end of the movable side seal member 50 is closed by the movable side bearing block 24. .

  Further, the length of the movable side seal member 50 in the longitudinal direction (arrow B direction and arrow C direction in FIG. 1) is set to be longer than the distance between the cover 36 and the movable bearing block 24. The movable side seal member 50 is fastened and fixed to the cover 36 and the movable side bearing block 24 with the intermediate portion in the longitudinal direction of the movable side seal member 50 recessed toward the second shaft portion 32 side. As a result, even if the movable bearing block 24 is in contact with or separated from the fixed bearing block 14 (even if the movable bearing block 24 is moved relative to the cover 36), the movable seal member 50 is moved to the movable bearing block. The movement of 24 can be followed.

  Further, as shown in FIG. 1, a fixed-side seal member 54 is provided between the fixed-side bearing block 14 and the cover 36. The fixed side seal member 54 is configured in the same manner as the movable side seal member 50. That is, the fixed-side seal member 54 has a substantially cylindrical shape and is configured by a flexible member. The fixed-side seal member 54 has the first shaft portion 22 disposed therein and is disposed coaxially with the first shaft portion 22. In addition, one end of the fixed-side seal member 54 is sandwiched between the seal flange member 52 and the cover-side mounting plate 42. The seal flange member 52 is fastened and fixed to the cover side mounting plate 42 by a plurality of bolts 60, so that one end of the fixed side seal member 54 is fixed to the cover 36. On the other hand, the other end of the fixed-side seal member 54 is sandwiched between the seal flange member 52 and the fixed-side mounting plate 16. The seal flange member 52 is fastened and fixed to the fixed side mounting plate 16 by a plurality of bolts 60, so that the other end portion of the fixed side seal member 54 is fixed to the fixed side bearing block 14. Thereby, the inside of the fixed side seal member 54 and the inside of the granulation space 38 are communicated by the opening 40, and the opening at the other end of the fixed side seal member 54 is closed by the fixed side bearing block 14. .

  Further, the length in the longitudinal direction of the fixed-side seal member 54 is set to be longer than the distance between the cover 36 and the fixed-side bearing block 14. The fixed-side seal member 54 is covered with the cover 36 and the fixed-side bearing block 14 in a state where an intermediate portion in the longitudinal direction of the fixed-side seal member 54 (the axial direction of the first shaft portion 22) is recessed toward the first shaft portion 22 side. It is fastened to the fastening.

  Next, the operation and effect of the present embodiment will be described.

  When manufacturing briquettes in the briquette machine 10 configured as described above, nitrogen is first filled into the granulation space 38 from the supply holes of the cover 36. Then, the cylinder rod of the hydraulic cylinder 46 is operated to press the second roll 30 toward the first roll 20, and the raw material (powder) is introduced from the hopper 44 between the first roll 20 and the second roll 30. To do.

  And by the drive of a drive part, the 1st roll 20 and the 2nd roll 30 are rotated in the mutually opposite direction, a raw material is pressure-solidified and a briquette is granulated. Further, when a briquette is manufactured by the first roll 20 and the second roll 30, the pressure between the first roll 20 and the second roll 30 is detected by the load cell 48 so that the pressure becomes constant. The hydraulic cylinder 46 can be adjusted.

  Here, a cylindrical movable-side seal member 50 is provided between the cover 36 and the movable-side bearing block 24. One end of the movable side seal member 50 is fixed to the cover side mounting plate 42 of the cover 36, and the other end of the movable side seal member 50 is fixed to the movable side mounting plate 26 of the movable side bearing block 24. For this reason, the inside of the movable side seal member 50 and the inside of the granulation space 38 are communicated by the opening 40, and the opening at the other end of the movable side seal member 50 is closed by the movable side bearing block 24. Thereby, the airtightness of the granulation space 38 is ensured.

  In addition, the movable side seal member 50 can follow the contact and separation of the movable side bearing block 24 with respect to the fixed side bearing block 14. For this reason, when the movable bearing block 24 comes into contact with or separates from the fixed bearing block 14, that is, when the movable bearing block 24 moves relative to the cover 36, The movable side seal member 50 follows the movement of the movable side bearing block 24 while maintaining the connection state with the movable side bearing block 24. Thereby, the airtightness of the granulation space 38 is ensured.

  Furthermore, the movable bearing block 24 and the fixed bearing block 14 are disposed outside the granulation space 38. For this reason, entry of the raw material (powder) into the sliding portion between the movable bearing block 24 and the frame 12 is suppressed. Thereby, generation | occurrence | production of the partial wear in the sliding part between the movable side bearing block 24 and the flame | frame 12 is suppressed, and the reliability of the briquette machine 10 is securable.

  Further, one end portion of the movable side seal member 50 is bent outward in the radial direction of the second shaft portion 32, and is fastened and fixed to the cover 36 by the seal flange member 52. That is, the movable side seal member 50 is fixed to the cover 36 with one end of the movable side seal member 50 sandwiched between the seal flange member 52 and the cover side mounting plate 42. Thereby, the adhesiveness between the one end part of the movable side sealing member 50 and the cover 36 can be made high.

  Further, the other end portion of the movable side seal member 50 is bent outward in the radial direction of the second shaft portion 32, and is fastened and fixed to the movable side bearing block 24 by the seal flange member 52. That is, the movable side seal member 50 is fixed to the movable side bearing block 24 with the other end of the movable side seal member 50 sandwiched between the seal flange member 52 and the movable side mounting plate 26. Thereby, the adhesiveness between the other end part of the movable side seal member 50 and the movable side bearing block 24 can be made high.

  Moreover, the seal flange member 52 is fastened and fixed to the cover 36 and the movable bearing block 24 by a plurality of bolts 60. Thereby, the adhesiveness between the one end part of the movable side seal member 50 and the cover 36 and between the other end part of the movable side seal member 50 and the movable side bearing block 24 can be further enhanced. As described above, the airtightness of the granulation space 38 can be increased.

  Moreover, the movable side sealing member 50 is comprised with the cloth material, and has flexibility. For this reason, the assembly | attachment property of the movable side sealing member 50 can be improved.

  Further, the movable side seal member 50 is bent and deformed in a state of being recessed toward the second shaft portion 32 side. For this reason, it is possible to fix the movable side seal member 50 to the cover 36 and the movable side bearing block 24 by arranging the surplus portion of the movable side seal member 50 on the second shaft portion 32 side. That is, in order to make the movable side seal member 50 follow the moving movement of the movable side bearing block 24 with respect to the fixed side bearing block 14, the movable side seal member is larger than the distance between the cover 36 and the movable side bearing block 24. The length of 50 in the longitudinal direction is set long. Thereby, an extra length portion is generated in the movable side seal member 50. However, since one end and the other end of the flexible movable side seal member 50 are bent outward in the radial direction of the second shaft portion 32, the movable side seal member 50 is recessed toward the second shaft portion 32. It bends and deforms. Therefore, the movable side seal member 50 can be fixed to the cover 36 and the movable side bearing block 24 in a state where the extra length portion of the movable side seal member 50 is disposed on the second shaft portion 32 side. Moreover, since the movable side seal member 50 is deformed to the second shaft portion 32 side, the movable side seal member 50 is suppressed from projecting to the opposite side (radially outer side) from the second shaft portion 32. Thereby, even if the surplus length part occurs in the movable side seal member 50, the influence on the members around the movable side seal member 50 can be suppressed.

  Further, the fixed-side seal member 54 is also made of a cloth material and has flexibility. For this reason, even if the fixed-side bearing block 14 moves relative to the cover 36, the fixed-side seal member 54 can follow the relative movement. That is, when the first roll 20 and the second roll 30 produce briquettes, the first roll 20 is pressed by the second roll 30. For this reason, even if the first roll 20 (fixed side bearing block 14) moves relative to the cover 36 by the pressing of the second roll 30 to the first roll 20, the relative movement of the first roll 20 is prevented. acceptable.

  In the present embodiment, the movable side seal member 50 and the fixed side seal member 54 are made of a flexible cloth material. Instead of this, the movable side sealing member 50 and the fixed side sealing member 54 may be made of, for example, a stretchable rubber material. Even in this case, when the movable bearing block 24 contacts and separates from the fixed bearing block 14, the movable seal member 50 expands and contracts following the movement of the movable bearing block 24. Airtightness can be secured.

  In the present embodiment, the fixed-side seal member 54 is also made of a flexible member like the movable-side seal member 50, but the fixed-side seal member 54 is made of a member that does not have flexibility. It may be configured. For example, the fixed-side seal member 54 may be made of metal or the like and fixed to the cover 36 and the fixed-side bearing block 14.

Furthermore, although the movable side seal member 50 is formed in a substantially cylindrical shape, the movable side seal member 50 may be configured to be openable in the radial direction of the movable side seal member 50. For example, a slit extending in the longitudinal direction of the movable side seal member may be formed in the cylindrical portion of the movable side seal member 50, and the movable side seal member 50 may be configured to open in the radial direction at the slit portion. Thereby, for example, the replacement work of the movable side seal member 50 can be facilitated. In this case, the slit portions may be joined by sewing or the like, or the slit portions may be configured to be openable and closable.

  Furthermore, in the present embodiment, the cover side mounting plate 42 is provided on the cover 36, but the cover side mounting plate 42 may be omitted. Similarly, the fixed side mounting plate 16 and the movable side mounting plate 26 may be omitted. That is, the movable side seal member 50 may be directly fixed to the cover 36 and the movable side bearing block 24 by the seal flange member 52. Alternatively, the fixed-side seal member 54 may be directly fixed to the cover 36 and the fixed-side bearing block 14 by the seal flange member 52.

  In the present embodiment, between the movable side seal member 50 and the second shaft portion 32 and between the fixed side seal member 54 and the first shaft portion 22, for example, heat-resistant glass wool is used. A substantially cylindrical protective member may be provided. Thereby, since the contact between the raw material (powder) in the granulation space 38 and the movable side seal member 50 and the fixed side seal member 54 is suppressed, the movable side seal member 50 and the fixed side seal member 54 are damaged. Can be suppressed.

  Furthermore, in this Embodiment, although the 1st roll 20 and the 2nd roll 30 which have a concave pocket are used for the briquette machine 10, the form of the 1st roll 20 and the 2nd roll 30 is not restricted to this. For example, the pockets may be omitted on the outer peripheral surfaces of the first roll 20 and the second roll 30. That is, you may form the outer peripheral surface of the 1st roll 20 and the 2nd roll 30 in planar shape. Further, for example, a plurality of grooves (slits) extending in the axial direction of the first roll 20 and the second roll 30 are provided on the outer peripheral surfaces of the first roll 20 and the second roll 30, and the grooves (slits) are formed. You may arrange | position in the position which matches with the circumferential direction in each outer peripheral surface. That is, the outer peripheral surfaces of the first roll 20 and the second roll 30 may be formed in an uneven shape when viewed from the axial direction of the first roll 20 and the second roll 30.

10 Briquette machine 14 Fixed bearing block (fixed bearing unit)
20 1st roll 22 1st axial part 24 Movable side bearing block (movable side bearing unit)
30 Second roll 32 Second shaft portion 36 Cover 38 Granulation space 40 Opening portion 50 Movable side sealing member (movable side airtight member)
52 Seal flange member (flange member)
54 Fixed-side seal member (fixed-side airtight member)

Claims (6)

A first roll provided on the first shaft portion so as to be integrally rotatable;
A second roll that is provided on the second shaft portion so as to be integrally rotatable, is arranged in parallel with the first roll, and pressurizes and solidifies the raw material in cooperation with the first roll to compress the briquette;
A fixed-side bearing unit that pivotally supports the first shaft portion;
A movable side bearing unit that pivotally supports the second shaft portion and is capable of contacting and separating in the radial direction of the first roll with respect to the fixed side bearing unit;
A cover that covers the first roll and the second roll, has an opening through which the first shaft portion and the second shaft portion are inserted, and has a granulation space inside.
A fixed-side airtight member formed in a cylindrical shape and having the first shaft portion disposed therein, one end portion fixed to the cover and the other end portion fixed to the fixed-side bearing unit;
The second shaft portion is formed in a cylindrical shape, and one end portion is fixed to the cover and the other end portion is fixed to the movable bearing unit, and the movable side with respect to the fixed bearing unit A movable side airtight member configured to be able to follow the contact / separation movement of the bearing unit;
Briquette machine equipped with.   The briquette according to claim 1, wherein one end and the other end of the movable side airtight member are bent radially outward of the second shaft portion and fixed by a plate-like flange member. Machine.   The briquette machine according to claim 2, wherein the movable side airtight member has flexibility.   The briquette machine according to claim 3, wherein the movable side airtight member is bent and deformed in a state of being depressed toward the second shaft portion.   The briquette machine according to any one of claims 1 to 4, wherein the movable airtight member is configured to be openable in a radial direction of the movable airtight member.   The briquette machine according to any one of claims 1 to 5, wherein the fixed-side airtight member has flexibility.

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