JP2014050845A - Briquette machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformize the thickness shape and weight of a briquette.SOLUTION: A briquette machine 10 comprises: a hydraulic cylinder 106 having a cylinder rod 110 which is arranged on the side of a movable side bearing unit 46 opposite to a fixation side bearing unit 56 by using a direction along radial directions of a first roll 12 and a second roll 14 as an axial direction, and is provided with a position adjustment part 120 for adjusting a position of the axial direction on its one end side; a pressure detector 124 which is provided between the other end of the cylinder rod 110 and the movable side bearing unit 46, and detects pressure acting between the other end of the cylinder rod 110 and the movable side bearing unit 46; and a control part 126 which controls a variable speed control motor 26 so that rotational frequencies of a feeder screw 24 are increased and decreased according to increase and decrease in pressure detection value by the pressure detector 124.

Description

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

  Conventionally, a briquette machine including a pair of rolls that form a briquette by pressurizing and solidifying a raw material supplied from a hopper is known (for example, see Patent Documents 1 and 2).

JP-A-9-192896 JP-A-6-55299

  In this type of briquette machine, it is a problem to make the thickness shape and weight of the briquette uniform.

  This invention is made | formed in view of the said subject, Comprising: It aims at providing the briquette machine which can equalize the thickness shape and weight of a briquette.

  In order to solve the above-mentioned problem, the briquette machine according to claim 1 is formed in a ring shape so that the rotation axes of the briquette machines are parallel to each other, and the raw materials supplied between them are rotated. Accordingly, a pair of rolls that are compressed and solidified to compress and form briquettes, a fixed-side bearing unit that pivotally supports a shaft portion that is integrally rotatable on one of the pair of rolls, and the other of the pair of rolls. A movable-side bearing unit that pivotally supports a shaft portion that is provided so as to be integrally rotatable, and that is movable toward and away from the fixed-side bearing unit in the radial direction of the pair of rolls; the fixed-side bearing unit; A clearance adjusting spacer that is provided between the movable side bearing unit and forms a clearance between the pair of rolls; and a direction along a radial direction of the pair of rolls as the axial direction. A hydraulic cylinder having a cylinder rod disposed on the opposite side of the fixed bearing unit with respect to the side bearing unit and provided with a position adjusting portion for adjusting the axial position on one end side; A pressure detector that is provided between an end and the movable bearing unit and detects a pressure acting between the other end of the cylinder rod and the movable bearing unit; and is disposed above the pair of rolls. A hopper, a feeder screw that is provided in the hopper and pushes the raw material in the hopper between the pair of rolls as it rotates, a variable speed control motor that rotates the feeder screw, and the pressure detector A control unit that controls the variable speed control motor so that the number of rotations of the feeder screw is decreased or increased in accordance with increase or decrease of the pressure detection value. , And a.

  According to this briquette machine, for example, due to fluctuations in the density and fluidity of the raw material supplied from the hopper, the compressive force acting on the raw material acting between the first roll and the second roll fluctuates. When the pressure acting between the other end of the rod and the movable bearing unit is increased or decreased, the rotation speed of the feeder screw is increased or decreased according to the increase or decrease. Thereby, since it can suppress that the compressive force to the raw material which acts between a 1st roll and a 2nd roll fluctuates, the thickness shape and weight of a briquette can be equalize | homogenized.

  Moreover, in order to solve the said subject, the briquette machine of Claim 2 is formed so that each may be formed in a ring | wheel shape and a mutual rotation axis may become parallel, and the raw material supplied between each other is used. A pair of rolls that pressurize and solidify with rotation to compress the briquette, a fixed-side bearing unit that pivotally supports a shaft portion that is integrally rotatable on one of the pair of rolls, and the pair of rolls. The other side of the pair of rolls is supported by a movable side bearing unit that pivotally supports a shaft portion provided on the other side so as to be integrally rotatable, and is capable of contacting and separating in the radial direction of the pair of rolls with respect to the fixed side bearing unit. A hydraulic cylinder that applies pressure to the other of the pair of rolls when a force acts in a direction away from one of the pair of rolls; A feeder screw that is provided in the hopper and that pushes the raw material in the hopper between the pair of rolls with rotation, a variable speed control motor that rotates the feeder screw, and the feeder screw is the raw material. The number of rotations of the feeder screw in accordance with the pressure for pushing between the pair of rolls, or the detector for detecting the drive current in the drive motor for rotating the pair of rolls, and the increase or decrease in the detection value by the detector And a control unit that controls the variable speed control motor.

  According to this briquette machine, for example, due to fluctuations in the density and fluidity of the raw material supplied from the hopper, the compressive force acting on the raw material acting between the first roll and the second roll fluctuates. When the pressure by which the screw pushes the raw material between the first roll and the second roll, or when the drive current in the drive motor provided in the drive unit is increased or decreased, the rotation speed of the feeder screw according to this increase or decrease Will be reduced. Thereby, since it can suppress that the compressive force to the raw material which acts between a 1st roll and a 2nd roll can be suppressed, it becomes possible to equalize the thickness shape and weight of a briquette.

  The briquette machine according to claim 3 is the briquette machine according to claim 1 or claim 2, wherein the fixed-side bearing unit and the movable-side bearing unit support the shaft portion, and the bearing. A compressed air supply nozzle having an injection port which is opened between the rolls and which injects compressed air supplied from a compressed air supply source.

  According to this briquette machine, the fixed-side bearing unit and the movable-side bearing unit have the compressed air supply nozzle for injecting the compressed air supplied from the compressed air supply source. The compressed air supply nozzle The nozzle is opened between the bearing and the roll. Therefore, it can suppress that the foreign material adhering to the outer peripheral surface of a roll approaches the bearing side by injecting compressed air from the injection port of this nozzle for compressed air supply. Thereby, the damage by the foreign material etc. of a bearing can be suppressed.

  The briquette machine according to claim 4 is the briquette machine according to claim 3, wherein the fixed-side bearing unit and the movable-side bearing unit have a compressed air supply path through which compressed air is supplied from the compressed air supply source. The compressed air supply nozzle is connected to the compressed air supply path by a connecting pipe.

  According to this briquette machine, since the connecting pipe is used for the connection between the compressed air supply nozzle and the compressed air supply path, the production of the nozzle pipe is easy and inexpensive.

  The briquette machine according to claim 5 is the briquette machine according to claim 3 or claim 4, wherein the fixed-side bearing unit and the movable-side bearing unit are provided on the roll side of the bearing; A seal member provided on the inner side of the cover, a wall portion is formed between the seal member and the roll in the cover, and an injection port of the compressed air supply nozzle is provided on the wall. It is opened between the part and the sealing member.

  According to this briquette machine, since the injection port of the nozzle for supplying compressed air is opened between the wall portion and the seal member, it is possible to prevent foreign matter and the like from approaching the seal member.

  The briquette machine according to claim 6 is the briquette machine according to claim 5, wherein the fixed-side bearing unit and the movable-side bearing unit fix the rotating shaft member on which the shaft portion is formed and the roll. The fixing member has a cylindrical portion that is close to and opposed to the tip of the wall portion, and a part of the compressed air injected from the injection port of the compressed air supply nozzle is It is discharged to the roll side through between the tip of the wall and the tubular part.

  According to this briquette machine, the amount of compressed air used can be reduced because the space between the tip of the wall portion and the cylindrical portion is narrow. Moreover, it can suppress more effectively that a foreign material etc. approach a wall part.

  The briquette machine according to claim 7 is the briquette machine according to any one of claims 1 to 6, wherein the roll has a plurality of segments divided in a circumferential direction. It is.

  According to this briquette machine, the roll has a plurality of segments divided in the circumferential direction. Therefore, even if a part of the roll breaks, it is not necessary to replace all of the rolls, and only the segment corresponding to the damaged part needs to be replaced. Can be reduced.

  The briquette machine according to claim 8 is the briquette machine according to claim 7, wherein the segments are made of powder high speed steel.

  According to this briquette machine, since the segment is made of powder high speed, the life of the segment can be extended.

  A briquette machine according to a ninth aspect is the briquette machine according to the seventh aspect, wherein the segments are made of alloy tool steel.

  According to this briquette machine, since the segments are made of alloy tool steel, the segments can be made cheaper and more wearable than powder high speed steel.

  The briquette machine according to claim 10 is the briquette machine according to claim 7, wherein the segment is made of ceramic or alloy steel of HRC65-80.

  According to this briquette machine, the segment is made of ceramic or alloy steel of HRC 65-80, so that the wear resistance can be improved and long-term use is possible.

  As described in detail above, according to the present invention, the thickness shape and weight of the briquette can be made uniform.

It is a front view of the briquette machine concerning one embodiment of the present invention. It is a right view of the briquette machine shown by FIG. It is a top view of the briquette machine shown by FIG. It is a perspective view of the 1st roll and 2nd roll with which the briquette machine shown by FIG. 1 was equipped. It is sectional drawing of the hopper and feeder screw with which the briquette machine shown by FIG. 1 was equipped. It is a sectional side view of the 1st roll with which the briquette machine shown by FIG. 1 was equipped, and its peripheral part. It is a principal part enlarged view of FIG. It is a top view of the fixed roll and movable roll with which the briquette machine different from the briquette machine shown in FIG. 1 was equipped, and its peripheral part. FIG. 9 is a front view including a partial cross section of a fixed roll and a movable roll shown in FIG. It is a figure which shows the flow of operation | movement of the control part shown by FIG. It is a figure which shows the 1st modification of the briquette machine shown by FIG. It is a principal part enlarged view of FIG. It is a figure which shows the 2nd modification of the briquette machine shown by FIG. It is a figure which shows the modification of the 2nd roll shown by FIG. It is a principal part expansion perspective view of the 2nd roll shown by FIG. It is a principal part expansion perspective view of the 2nd roll shown by FIG. It is a perspective view of the segment shown by FIG.

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

  1-3, the briquette machine 10 which concerns on one Embodiment of this invention is the 1st roll 12 and the 2nd roll 14 as a pair of roll, the drive part 16, and a 1st coupling part. 18, a second coupling unit 20, a hopper 22, a feeder screw 24, and a variable speed control motor 26.

  The first roll 12 and the second roll 14 are accommodated in a frame 27. The first roll 12 and the second roll 14 are each formed in a ring shape, and are arranged so that their rotation axes L1 and L2 are parallel to each other. As shown in FIG. 4, a plurality of pockets 28 and 30 are formed on the outer peripheral surfaces 12A and 14A of the first roll 12 and the second roll 14, respectively. The plurality of pockets 28 formed in the first roll 12 and the plurality of pockets 30 formed in the second roll 14 are formed at positions that are aligned with each other in the circumferential direction on the outer peripheral surfaces 12A and 14A.

  As shown in FIGS. 2 and 3, the drive unit 16 includes a drive motor 32 and a speed reducer 34. The speed reducer 34 is provided with a pair of output shafts 36 and 38 in parallel. The first coupling portion 18 connects between one output shaft 36 and the first roll 12, and the second coupling portion 20 connects between the other output shaft 38 and the second roll 14. doing.

  As shown in FIG. 5, the hopper 22 is disposed above the first roll 12 and the second roll 14, and the feeder screw 24 is provided in the hopper 22. A driven mechanism 39 is provided on the upper portion of the feeder screw 24.

  In the briquette machine 10, when the drive unit 16 is driven, the rotational driving force of the drive unit 16 is supplied to the first roll 12 and the second roll via the first coupling unit 18 and the second coupling unit 20. 14, the first roll 12 and the second roll 14 are rotated in opposite directions. In this state, when the variable speed control motor 26 is rotated, this rotational force is transmitted to the feeder screw 24 through the driven mechanism 39 to rotate the feeder screw 24, and the raw material in the hopper 22 is fed to the feeder screw 24. From between the first roll 12 and the second roll 14. Then, the pocket 28 and the pocket 30 cooperate to press and solidify the raw material, whereby the briquette is compression-formed.

  More specifically, as shown in FIG. 6, the first roll 12 is assembled to the outer peripheral surface 40 </ b> A of the rotating shaft member 40 by a fixing member 42. A pair of shaft portions 44 are formed coaxially with the first roll 12 on both axial sides of the first roll 12 in the rotary shaft member 40. The pair of shaft portions 44 are each supported by a movable bearing unit 46. A roll side connecting portion 48 is coaxially formed on one shaft portion 44 located closer to the first coupling portion 18 than the first roll 12.

  6, the second roll 14 described above is also assembled to the outer peripheral surface 50A of the rotating shaft member 50 by the fixing member 52, like the first roll 12. A pair of shaft portions 54 are formed coaxially with the second roll 14 on both axial sides of the second roll 14 in the rotary shaft member 50. The pair of shaft portions 54 are each supported by a fixed-side bearing unit 56. A roll side connecting portion 58 is coaxially formed on one shaft portion 54 located closer to the second coupling portion 20 than the second roll 12.

  The movable-side bearing unit 46 is provided on the inner side of the bearing 60 attached to the shaft portion 54, a case 62 for housing the bearing 60, a cover 64 provided on the first roll 12 side of the bearing 60, and the cover 64. And a sealing member 66.

  A lubricating oil supply path 68 is formed in the case 62, and a lubricating oil supply nozzle 70 is provided in the cover 64. The lubricating oil supply path 68 and the lubricating oil supply nozzle 70 are connected by a connecting pipe 72. The injection port of the lubricating oil supply nozzle 70 is opened between the bearing 60 and the seal member 66. In the movable bearing unit 46, when lubricating oil from a lubricating oil supply source (not shown) is supplied from the inlet of the lubricating oil supply path 68, the lubricating oil passes through the connection pipe 72 and the lubricating oil supply nozzle 70. It is supplied to the bearing 60.

  Further, as shown in FIG. 7, a wall portion 74 is formed on the cover 64 between the seal member 66 and the first roll 12. The wall portion 74 extends inward in the radial direction of the cover 64, and the tip portion thereof is close to and opposed to the cylindrical portion 76 formed on the fixing member 42.

  The case 62 is formed with a compressed air supply path 78, and the cover 64 is provided with a compressed air supply nozzle 80. The compressed air supply path 78 and the compressed air supply nozzle 80 are connected by a connecting pipe 82. Further, the injection port of the compressed air supply nozzle 80 is opened between the wall portion 74 and the seal member 66.

  In the movable-side bearing unit 46, when compressed air from a compressed air supply source (not shown) is supplied from the inlet of the compressed air supply path 78, the compressed air passes through the connection pipe 82 and the compressed air supply nozzle 80. Injected between the wall 74 and the seal member 66. A part of the compressed air injected between the wall 74 and the seal member 66 is dispersed in the circumferential direction between the wall 74 and the seal member 66, and the other part is the wall 74. Is discharged to the first roll 12 side through the space between the front end portion and the cylindrical portion 76. The dust removal by the jet of compressed air may be always performed or may be performed as necessary.

  6 and 7, as indicated by reference numerals in parentheses, the rotary shaft member 50 to which the second roll 14 is assembled, and the fixed-side bearing unit 56 that supports the shaft portion 54 of the rotary shaft member 50. These are the same configurations as the rotary shaft member 40 and the movable bearing unit 46 described above.

  As shown in FIG. 8, the movable-side bearing unit 46 can be brought into and out of contact with the fixed-side bearing unit 56 in the radial direction (X direction) of the first roll 12 and the second roll 14. A clearance adjusting spacer 104 is provided between the fixed-side bearing unit 56 and the movable-side bearing unit 46, whereby a clearance is formed between the first roll 12 and the second roll 14. . This clearance is adjusted by the width of the clearance adjusting spacer 104. Specifically, a plurality of types of clearance adjustment spacers 104 having different widths are prepared, and an optimal clearance state can be obtained by arranging them in combination. This clearance adjustment can be performed while measuring with a clearance gauge or the like, and is performed, for example, at the time of equipment installation or replacement.

  A hydraulic cylinder 106 is disposed on the side opposite to the fixed side bearing unit 56 with respect to the movable side bearing unit 46. The hydraulic cylinder 106 is disposed with the direction along the radial direction of the first roll 12 and the second roll 14 as the axial direction. The hydraulic cylinder 106 has a cylinder body 108 and a cylinder rod 110. The cylinder body 108 is fixed to the side surface of the housing 112 that houses the fixed-side bearing unit 56, the movable-side bearing unit 46, the first roll 12, the second roll 14, and the like. The cylinder rod 110 has a piston portion 114 at the center in the longitudinal direction, and the piston portion 114 is accommodated in the cylinder body 108.

  A threaded portion 116 is formed at one end of the cylinder rod 110, and the threaded portion 116 is screwed into the adjustment nut 118. The adjustment nut 118 is in contact with the wall surface of the cylinder body 108 opposite to the housing 112. The screw part 116 and the adjustment nut 118 constitute a position adjustment part 120, and the axial position of the cylinder rod 110 is adjusted by adjusting the screwing amount of the screw part 116 and the adjustment nut 118. Is done.

  A pressure detector 124 is fixed to the side wall portion of the movable bearing unit 46 opposite to the fixed bearing unit 56 via a liner 122. The pressure detector 124 is provided between the other end of the cylinder rod 110 and the movable bearing unit 46, and the other end of the cylinder rod 110 is in contact with the pressure detector 124. The pressure acting between the other end of the cylinder rod 110 and the movable bearing unit 46 is detected by the pressure detector 124. The output signal from the pressure detector 124 is input to the control unit 126 via an adder and an amplifier (not shown).

  And in the briquette machine 10 comprised in this way, the clearance between the 1st roll 12 and the 2nd roll 14 is set by the clearance adjusting spacer 104 in the state where the 1st roll 12 and the 2nd roll 14 are unloaded. . At this time, the adjustment nut 118 is adjusted to a position where the other end of the cylinder rod 110 contacts the pressure detector 124. At this time, there is no output signal of the pressure detector 124. Next, one side of the piston portion 114 in the cylinder body 108 is filled with drive oil, and the cylinder rod 110 is fixed by hydraulic pressure.

  When a raw material is supplied between the first roll 12 and the second roll 14 and a pressing force is applied between the first roll 12 and the second roll 14, the other end of the cylinder rod 110 and the movable bearing unit 46. The pressure detector 124 detects the pressure acting between the two. A signal corresponding to the pressure is input to the control unit 126 via an adder and an amplifier (not shown) (step S1 in FIG. 10).

  In the control unit 126, it is determined whether or not the pressure detection value by the pressure detector 124 is within a predetermined range (step S2 in FIG. 10), and if the pressure detection value is within the predetermined range, The rotation speed of the feeder screw 24 is maintained as it is.

  On the other hand, when the detected pressure value is outside the predetermined range, the control unit 126 determines whether the detected pressure value is larger than the predetermined range (step in FIG. 10). S3). When the detected pressure value is larger than the predetermined range, the variable speed control motor 26 is controlled so that the rotation speed of the feeder screw 24 is reduced (step S4 in FIG. 10). On the other hand, in the control unit 126, when the pressure detection value is smaller than a predetermined range, the variable speed control motor 26 is controlled so that the rotation speed of the feeder screw 24 is increased (step of FIG. 10). S5).

  If foreign matter is mixed between the first roll 12 and the second roll 14 and a large pressure is applied between the first roll 12 and the second roll 14, this impact is transferred to the movable bearing unit 46. , And transmitted to the cylinder rod 110 through the liner 122 and the pressure detector 124. The impact is absorbed by the cylinder rod 110 being moved against the resistance force of the hydraulic pressure.

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

  According to this briquette machine 10, for example, due to fluctuations in the density and fluidity of the raw material supplied from the hopper 22, the compressive force applied to the raw material acting between the first roll 12 and the second roll 14 varies. Accordingly, when the pressure acting between the other end of the cylinder rod 110 and the movable bearing unit 46 is increased or decreased, the rotational speed of the feeder screw 24 is increased or decreased according to the increase or decrease. Thereby, since it can suppress that the compressive force to the raw material which acts between the 1st roll 12 and the 2nd roll 14 is fluctuate | varied, the thickness shape and weight of a briquette can be equalize | homogenized.

  The movable-side bearing unit 46 has a compressed air supply nozzle 80 for injecting compressed air supplied from a compressed air supply source. The injection port of the compressed air supply nozzle 80 is a bearing 60. And the first roll 12, more specifically, between the wall 74 and the seal member 66. Accordingly, the compressed air is injected from the injection port of the compressed air supply nozzle 80, so that foreign matter or the like attached to the outer peripheral surface of the first roll 12 can be prevented from approaching the bearing 60 side. Thereby, the damage by the foreign material etc. of the bearing 60 can be suppressed.

  In particular, a part of the compressed air ejected from the ejection port of the compressed air supply nozzle 80 is discharged to the first roll 12 side through the space between the distal end portion of the wall portion 74 and the cylindrical portion 76, thereby Moreover, it can suppress more effectively that the foreign material etc. which adhered to the outer peripheral surface of the 1st roll 12 approach the bearing 60 side (wall part 74).

  In addition, since the space between the tip of the wall 74 and the cylindrical portion 76 is narrow, the amount of compressed air used can be reduced.

  Further, since the fixed-side bearing unit 56 has the same configuration as that of the movable-side bearing unit 46, the outer circumference of the second roll 14 can be obtained by injecting compressed air in the same manner as the movable-side bearing unit 46. It can suppress that the foreign material etc. which adhered to the surface approach the bearing 60 side.

  In addition, since the connecting pipe 82 is used to connect the compressed air supply nozzle 80 and the compressed air supply path 78, the nozzle pipe can be easily manufactured and inexpensive.

  Next, a modification of one embodiment of the present invention will be described.

  In the embodiment described above, the rotational speed of the feeder screw 24 is reduced in accordance with the increase or decrease of the pressure acting between the other end of the cylinder rod 110 and the movable side bearing unit 46. However, the configuration is as follows. May be.

  That is, in the modification shown in FIGS. 11 and 12, the first roll 12 can be brought into contact with and separated from the second roll 14 in the radial direction. The first roll 12 is pressurized by the hydraulic cylinder 128 when a force acts in a direction away from the first roll 12. A pressure detector 130 as a detector is provided at the lower end of the hopper 22, and the pressure at which the feeder screw 24 pushes the raw material between the first roll 12 and the second roll 14 is detected by the pressure detector 130. Is done. In this modified example, the variable speed control motor 26 is controlled by the control unit 126 so that the rotational speed of the feeder screw 24 is increased or decreased in accordance with the increase or decrease of the detection value by the pressure detector 130.

  Even if configured in this way, for example, due to fluctuations in the density and fluidity of the raw material supplied from the hopper 22, the compressive force on the raw material acting between the first roll 12 and the second roll 14 varies, Accordingly, when the pressure at which the feeder screw 24 pushes the raw material between the first roll 12 and the second roll 14 is increased or decreased, the rotational speed of the feeder screw 24 is decreased or increased according to the increase or decrease. . Thereby, since it can suppress that the compression force to the raw material which acts between the 1st roll 12 and the 2nd roll 14 is fluctuate | varied, it becomes possible to equalize the thickness shape and weight of a briquette.

  As shown in FIG. 13, instead of the pressure detector 130 described above, a current detector 132 that detects a drive current in the drive motor 32 provided in the drive unit 16 may be used as a detector. Then, the variable speed control motor 26 may be controlled by the control unit 126 so that the number of rotations of the feeder screw 24 is increased or decreased according to the increase or decrease of the detection value by the current detector 132.

  Moreover, in the said embodiment, the 1st roll 12 may be comprised including the some segment 144 divided | segmented into the circumferential direction, as FIGS. 14-17 shows. In this case, the segment 144 may be made of powder high speed.

  The segment 144 is fixed to the shaft by a fixing member (clamp ring) 42 (52). By tightening the mounting bolts of the fixing member 42 (52), the oblique shoulder portion of the segment 144 is pushed in the axial direction, so that the oblique shoulder is pressed in the direction perpendicular to the shaft, so that it is fixed to the shaft. Yes. The gap between the shaft and the segment 144 is processed so as to be in close contact with each other in order to prevent the segment 144 from being damaged. Since the fixing member 42 (52) is divided into a plurality of parts in the circumferential direction, the fixing member 42 (52) can be removed when the segment 144 is replaced. Of course, there is no functional problem even if integrated.

  As described above, when the first roll 12 has a plurality of segments 144 divided in the circumferential direction, even if a part of the first roll 12 is damaged, the entire first roll 12 is replaced. Since it is not necessary to replace only the segment 144 corresponding to the damaged portion, the cost can be reduced as compared with the case where all the first rolls 12 are replaced.

  In addition, when the segment 144 is made of powder high speed, the life of the segment 144 can be extended.

  Note that, similarly to the first roll 12, the second roll 14 may also be configured to include a plurality of segments 144 that are divided in the circumferential direction.

  The segment 144 may be made of alloy tool steel. If it does in this way, it can be set as the segment which was cheap and was excellent in abrasion property compared with powder high speed.

  Further, the segment 144 may be made of a ceramic or alloy steel whose material is HRC65-80. If it does in this way, abrasion resistance can be improved and long-term use will be attained.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

10 Briquette machine 12 First roll (roll)
14 Second roll (roll)
16 Drive unit 18 First coupling unit 20 Second coupling unit 22 Hopper 24 Feeder screw 26 Variable speed control motor 28, 30 Pocket 32 Drive motor 44, 54 Shaft unit 46 Movable side bearing unit 56 Fixed side bearing unit 60 Bearing 80 Compressed air supply nozzle 104 Clearance adjustment spacer 106 Hydraulic cylinder 110 Cylinder rod 120 Position adjustment unit 124 Pressure detector 126 Control unit 128 Hydraulic cylinder 130 Pressure detector (detector)
132 Current detector (detector)
144 segments

Claims (10)

A pair of rolls that are each formed in a ring shape and are arranged so that their rotational axes are parallel to each other, and compress and form briquettes by pressurizing and solidifying the raw materials supplied between them,
A fixed-side bearing unit that pivotally supports a shaft portion that is rotatably provided integrally with one of the pair of rolls;
A movable-side bearing unit that pivotally supports a shaft portion that is integrally rotatable with the other of the pair of rolls, and that is movable toward and away from the fixed-side bearing unit in the radial direction of the pair of rolls;
A clearance adjusting spacer provided between the fixed side bearing unit and the movable side bearing unit, and forming a clearance between the pair of rolls;
A position adjusting unit for adjusting the position in the axial direction on one end side is disposed on the opposite side to the fixed bearing unit with respect to the movable bearing unit with the direction along the radial direction of the pair of rolls as the axial direction. A hydraulic cylinder having a provided cylinder rod;
A pressure detector that is provided between the other end of the cylinder rod and the movable bearing unit and detects a pressure acting between the other end of the cylinder rod and the movable bearing unit;
A hopper disposed above the pair of rolls;
A feeder screw which is provided in the hopper and pushes the raw material in the hopper between the pair of rolls as it rotates;
A variable speed control motor for rotating the feeder screw;
A control unit for controlling the variable speed control motor so that the number of rotations of the feeder screw is increased or decreased according to an increase or decrease of a pressure detection value by the pressure detector;
Briquette machine equipped with. A pair of rolls that are each formed in a ring shape and are arranged so that their rotational axes are parallel to each other, and compress and form briquettes by pressurizing and solidifying the raw materials supplied between them,
A fixed-side bearing unit that pivotally supports a shaft portion that is rotatably provided integrally with one of the pair of rolls;
A movable-side bearing unit that pivotally supports a shaft portion that is integrally rotatable with the other of the pair of rolls, and that is movable toward and away from the fixed-side bearing unit in the radial direction of the pair of rolls;
A hydraulic cylinder that applies pressure to the other of the pair of rolls when a force is applied to the other of the pair of rolls in a direction away from one of the pair of rolls;
A hopper disposed above the pair of rolls;
A feeder screw which is provided in the hopper and pushes the raw material in the hopper between the pair of rolls as it rotates;
A variable speed control motor for rotating the feeder screw;
A detector that detects a pressure at which the feeder screw pushes the raw material between the pair of rolls, or a drive current in a drive motor that rotates the pair of rolls;
A control unit for controlling the variable speed control motor so that the number of rotations of the feeder screw is decreased or increased in accordance with increase or decrease of the detection value by the detector;
Briquette machine equipped with. The fixed side bearing unit and the movable side bearing unit are:
A bearing that pivotally supports the shaft portion;
A compressed air supply nozzle having an injection port that is opened between the bearing and the roll and injects compressed air supplied from a compressed air supply source;
have,
The briquette machine according to claim 1 or 2. The fixed-side bearing unit and the movable-side bearing unit have a case in which a compressed air supply path to which compressed air is supplied from the compressed air supply source is formed and the bearing is accommodated.
The compressed air supply nozzle is connected to the compressed air supply path by a connection pipe.
The briquette machine according to claim 3. The fixed side bearing unit and the movable side bearing unit are:
A cover provided on the roll side of the bearing;
A seal member provided inside the cover;
Have
A wall portion is formed between the seal member and the roll in the cover,
The injection port of the compressed air supply nozzle is opened between the wall portion and the seal member.
The briquette machine according to claim 3 or 4. The fixed side bearing unit and the movable side bearing unit are:
A fixing member for fixing the rotating shaft member and the roll formed with the shaft portion;
The fixing member is formed with a cylindrical portion that is close to and opposed to the tip portion of the wall portion,
A part of the compressed air injected from the injection port of the compressed air supply nozzle is discharged to the roll side through between the tip of the wall and the cylindrical part.
The briquette machine according to claim 5. The roll has a plurality of segments divided in the circumferential direction.
The briquette machine as described in any one of Claims 1-6. The segment is made of powder high speed,
The briquette machine according to claim 7. The segment is made of alloy tool steel,
The briquette machine according to claim 7. The segment is made of HRC65-80 ceramic or alloy steel,
The briquette machine according to claim 7.