WO2014208669A1 - Squeezing device, fuel pellet manufacturing facility, and squeezing method - Google Patents

Abstract

The present invention is provided with: an inscribed roll (3) which is rotatably disposed; a rotatable ring roll (2) which is disposed such that the inscribed roll (3) is disposed in a space portion formed therein, and the roll-center-to-roll-center distance from the inscribed roll (3) is variable; an inscribe roll rotation means which rotates the inscribed roll (3); a pressing roll (4) which is disposed outside the ring roll (2) and presses the outer peripheral surface of the ring roll (2); an adjustment means (33A) which relatively moves the inscribed roll (3) and the pressing roll (4) in a direction in which the rolls move toward or away from each other to thereby adjust the center-to-center distance between the rotation center of the inscribed roll (3) and the rotation center of the pressing roll (4); and a ring roll rotation means which rotates the ring roll (2). An object to be squeezed that has been put in the space portion of the ring roll (2) is directly squeezed by the inner peripheral surface of the ring roll (2) and the outer peripheral surface of the inscribed roll (3) between the inner peripheral surface of the ring roll (2) and the outer peripheral surface of the inscribed roll (3).

Description

Squeezing device, fuel pellet manufacturing equipment and squeezing method

The present invention relates to a pressing device, a fuel pellet manufacturing facility, and a pressing method for squeezing liquid from a liquid-containing plant such as oil palm and sugar cane.
This application claims priority based on Japanese Patent Application No. 2013-136855 filed in Japan on June 28, 2013 and Japanese Patent Application No. 2014-039789 filed in Japan on February 28, 2014. The contents are incorporated herein.

Conventionally, the structure shown in the following patent document 1 is proposed as a pressing device. The squeezing device described in Patent Document 1 is an outer roller (ring roll) that is rotatably arranged and has a space portion formed therein, a first driving unit that rotates the outer roller, and a space of the outer roller. An inner roller (inscribed roll) arranged in the section and a second driving means for rotating the inner roller.
And according to this squeezing device, the outer roller and the inner roller are respectively rotated in the same direction by the first and second driving means, and the squeezed object is squeezed between the rollers, thereby squeezing the object. Squeeze.

Japanese Unexamined Patent Publication No. 2007-253187

In the conventional squeezing apparatus described above, the squeezed object is bitten and compressed in a predetermined gap formed in advance between the outer roller and the inner roller, There is a problem that the compression ratio varies depending on the size and shape, and it is difficult to obtain a constant compression ratio.
Moreover, the clearance gap formed between the outer side roller and the inner side roller is constant, Comprising: It is the structure which a pressing target object is bitten in this fixed gap, and is squeezed while moving ahead. Therefore, if the gap between the outer roller and the inner roller is reduced, the compression ratio can be increased, but the object to be compressed cannot be bitten, resulting in a problem that the compression ratio cannot be set high. .
Explaining the above in more detail, if the thickness and density of the entry object to be squeezed are not strictly controlled with respect to the gap formed between the outer roller and the inner roller, the compression ratio varies greatly. There was a problem that the moisture content (moisture content) of the predetermined residue could not be obtained. That is, in the conventional pressing device, the pressing rate is determined by the thickness and density of the entry-side pressing object and the gap formed between the outer roller and the inner roller. However, since the object to be squeezed is generally a mixture containing fibers and crushed pieces, the thickness naturally has a large variation in density. Therefore, in practice, it is difficult or impossible to control the density of the object to be compressed, and as a result, there is a problem that the moisture content (moisture content) of a predetermined residue cannot be obtained.
For example, in order to obtain the moisture content (moisture content) of a predetermined residue, if, for example, an object to be compressed is put in too much (too much), a new bite defect occurs in the outer roller and the inner roller. Will lead to serious problems.

Furthermore, the residue after pressing of a pressing target object may be utilized as a fuel after that. Here, in the squeezing using the above-described conventional squeezing device, the moisture content (moisture content) of the residue is high and cannot be used as fuel as it is. For this reason, after the pressing process, a drying process for forcibly drying the residue is required, and in order to use the residue as a fuel, there are problems that it takes a lot of processing time and costs.
Moreover, in the conventional pressing apparatus, since the crushing force is weak and a large residue remains, a re-crushing step is necessary to produce, for example, fuel pellets as fuel from the residue.

The present invention has been made in view of the above-described circumstances, and even when the size and shape of a pressing object to be input are changed, a constant and high pressing rate can be obtained, and the moisture content ( It is an object of the present invention to provide a squeezing device, a fuel pellet manufacturing facility, and a squeezing method that can reduce the water content) and can make the residue finer.

The squeezing device according to one aspect of the invention is configured such that the inscribed roll arranged rotatably and the inscribed roll are arranged in a space formed inside, and a distance between roll centers with the inscribed roll is A rotatable ring roll that is variably arranged, an inscribed roll rotating means that rotates the inscribed roll, a pressing roll that is arranged outside the ring roll and presses the outer peripheral surface of the ring roll, and the inner Adjusting means for adjusting the distance between the center of rotation of the inscribed roll and the center of rotation of the pressing roll by relatively moving the contact roll and the pressing roll in a direction in which they approach or separate from each other; A ring roll rotating means for rotating the ring roll, and the object to be squeezed into the space of the ring roll is between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll, It is squeezed directly by the inner and outer peripheral surfaces of the inscribed roll of serial ring rolling.
In addition, the said adjustment means may be provided with the press roll press means which presses the said press roll to the said inscribed roll side via the ring wall part of the said ring roll.

According to the squeezing device, the inscribed roll is rotated by the inscribed roll rotating means. The ring roll is rotated by the ring roll rotating means. The ring roll is simultaneously pressed toward the inscribed roll side by the pressing roll pressed by the pressing roll pressing means.

The object to be squeezed into the space inside the ring roll is bitten between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll, and the inner peripheral surfaces of these ring rolls. And it is squeezed directly by the outer peripheral surface of the inscribed roll. Here, since the ring roll is pressed to the inscribed roll side via the pressing roll by the pressing roll pressing means, the center-to-center distance between the center of rotation of the inscribed roll and the center of rotation of the pressing roll can be adjusted. It is possible, and it is possible to set arbitrarily the pressing surface pressure with respect to the pressing object between the inner peripheral surface of a ring roll and the outer peripheral surface of an inscribed roll. By setting this pressing surface pressure high, it is possible to achieve a constant and high pressing rate for the pressing object. As a result, the moisture content (moisture content) of the residue can be reduced, and the residue can be miniaturized.

Here, the ring roll rotating means may be a pressing roll rotating means for rotating the pressing roll, and a rotation transmitting means for transmitting the rotation of the pressing roll to the ring roll by friction to rotate the ring roll.
Thereby, the structure of a ring roll rotation means can be simplified. That is, when the ring roll is directly rotated, the distance between the roll centers of the ring roll is variably arranged with respect to the inscribed roll or the press roll, so interference with the inscribed roll or the press roll must be taken into consideration. It must be complicated in structure. On the other hand, when the pressing roll is rotated by the pressing roll rotating means, it is not necessary to consider interference with the inscribed roll, and the configuration can be simplified correspondingly.

Moreover, you may arrange | position each rotation center of the said ring roll, the said inscribed roll, and the said press roll on the same line.
Thereby, the pressing force of the pressing roll pressed by the pressing roll pressing means is efficiently transmitted to the ring roll and the inscribed roll. As a result, the pressing surface pressure between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll can be set higher.

Moreover, you may arrange | position so that the line which connects each rotation center of the said ring roll, the said inscribed roll, and the said press roll may incline a predetermined angle with respect to a perpendicular direction.
Thereby, the biting position of the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll into the object to be compressed is slightly shifted to the left or right from the lowest end position of the inner peripheral surface of the ring roll, As a result, this biting position is located above the lowest end position of the inner peripheral surface of the ring roll.
Here, the space part inside the ring roll has, for example, a clogging position as a boundary, and one side is an object to be pressed and the other side is a residue storage part. In this case, considering that the juice oozes out from the squeeze object input part to the residue storage part side through the biting position where a slight gap is formed, the biting position is the most on the inner peripheral surface of the ring roll. Being on the upper side of the lower end position means that the squeezed produced at the squeezed object input part is less likely to move to the residue storage part side.
As a result, it becomes possible to keep the moisture content (moisture content) of the residue after pressing remaining in the residue reservoir lower.

Further, the space part is connected to a pressing object supply unit that supplies the pressing object to the space part, and the pressing object supply part conveys the pressing object by vibration, and the A rotating roll disposed above the vibration feeder and provided with a protrusion on an outer peripheral surface, the rotating roll being transported to the front side of the conveying direction on the vibration feeder, the protrusion Thus, it may be rotated so as to flip toward the rear side in the transport direction.
In this case, the protrusion of the rotary roll flips the object to be squeezed that is being conveyed on the vibration feeder to the front side in the conveying direction toward the rear side in the conveying direction. Therefore, when the compressed object on the vibration feeder passes below the rotary roll, the portion of the compressed object that is stacked up to an excessive height is directed toward the rear side in the conveying direction. You can play it off. Thereby, it becomes possible to make the compression target object which passed the lower side of a rotating roll into a fixed height, suppressing the compression to a perpendicular direction, and the volume (capacity | capacitance) of the compression target object supplied to a space part. Can be stabilized.

Moreover, the separation part which collect | recovers the squeezed juice extracted from the said pressing object, The said recovery part isolate | separates the residue of the said pressing object mixed in the said juice from the said juice, and the said And a resupply unit that supplies the residue separated by the separation unit to the space.
In this case, since the collection unit includes the separation unit, the purity of the juice to be collected can be increased. Furthermore, since the collection | recovery part is equipped with the resupply part, the residue of the pressing target object isolate | separated from the squeezed by the separation part can be squeezed again.

In addition, the repair unit repairs the outer peripheral surface of the inscribed roll and the inner peripheral surface of the ring roll, the repair unit repairs the outer peripheral surface of the inscribed roll while rotating the inscribed roll, The inner peripheral surface of the ring roll may be repaired while rotating the ring roll.
In this case, since the repairing part repairs the outer peripheral surface of the inscribed roll while rotating the inscribed roll, the entire outer peripheral surface of the inscribed roll is moved without moving the repaired part over the entire circumference outside the inscribed roll. It can be repaired over the circumference. Further, when rotating the inscribed roll, an inscribed roll rotating means can be used.
Furthermore, since the repairing part repairs the inner peripheral surface of the ring roll while rotating the ring roll, the inner peripheral surface of the ring roll is repaired over the entire circumference without moving the repairing part over the entire circumference in the ring roll. Can do. Moreover, when rotating a ring roll, a ring roll rotation means can be utilized.

Moreover, the said repair part is provided with the some holding roll which supports the outer peripheral surface of the said ring roll, The said holding roll is the circumferential direction of the said ring roll with respect to the said press roll in the outer peripheral surface of the said ring roll. It may be arranged so as to be shifted.
In this case, the plurality of holding rolls are arranged in the circumferential direction of the ring roll with respect to the pressing roll on the outer circumferential surface of the ring roll. Therefore, when rotating the ring roll to repair the pressing roll, the outer peripheral surface of the ring roll can be supported by at least three places separated in the circumferential direction by the pressing roll and the plurality of holding rolls. it can. Thereby, rotation of a ring roll can be stabilized.

In addition, the repair portion includes an inscribed roll cutting portion that repairs by cutting the outer peripheral surface of the inscribed roll, and the hardness of the inscribed roll is higher than the hardness of the ring roll. The part rotates the inscribed roll and the ring roll while pressing the outer peripheral surface of the inscribed roll, which has been cut by the inscribed roll cutting portion, against the inner peripheral surface of the ring roll. The inner peripheral surface of the ring roll may be repaired.
In this case, the restoration part includes an inscribed roll cutting part, and the hardness of the inscribed roll is higher than the hardness of the ring roll. Therefore, after the outer peripheral surface of the inscribed roll is repaired and repaired by the inscribed roll cutting unit, the inscribed roll and the ring roll are pressed while pressing the outer peripheral surface of the inscribed roll against the inner peripheral surface of the ring roll. The outer peripheral surface of the repaired inscribed roll can be pressed and transferred to the inner peripheral surface of the ring roll. Thereby, the inner peripheral surface of the ring roll can be repaired.

Moreover, the airflow conveyance means which discharges | emits the residue after pressing to the said space part from this space part may be connected.
As described above, it is possible to set a high pressing surface pressure on the object to be compressed between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll, and thereby the water content (water content) of the residue. Can be reduced. Therefore, when discharging the residue after pressing from the space inside the ring roll, it is possible to use the air flow conveyance using the air flow conveyance means, and thereby the residue can be continuously discharged.

The fuel pellet manufacturing facility according to one aspect of the present invention includes: the pressing device; and a molding device that compresses a residue after the pressing object is compressed and forms a fuel pellet at a subsequent stage of the pressing device. Prepare.
According to the said fuel pellet manufacturing equipment, when pressing a pressing target object with a pressing device, by setting the pressing surface pressure high, for example, the water content (water content) of the residue is 35% or less and the residue The average length of the remaining fibers can be 6 mm or less. Accordingly, the fuel pellets can be formed by directly compressing the residue without going through a drying step or re-crushing step.

The squeezing method according to one aspect of the present invention is a squeezing method using the squeezing device, the step of putting a squeezed object into the space of the ring roll, the inner peripheral surface of the ring roll, and the inner Moisture content of the residue of the compressed object after pressing by directly compressing the compressed object with the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll between the outer peripheral surface of the contacting roll And 35% or less, and the step of transporting the residue to the outside of the space portion by the air flow transport means.
By setting the moisture content (moisture content) of the residue of the compressed object to 35% or less, the residue can be brought into a so-called “caracara” state with less moisture. Thus, since the residue itself is very light, efficient residue conveyance using air current conveyance can be performed.

Moreover, you may squeeze the said pressing target object so that the average length of the fiber which remains in the said residue may be 6 mm or less.
In this case, since the average length of the fibers remaining in the residue is 6 mm or less, a process of re-crushing the residue is not required when producing fuel pellets from the residue. Therefore, the residue after squeezing can be used as it is as a material for fuel pellets, the processing time for producing fuel pellets can be shortened, and the running cost can be reduced.

Moreover, you may provide the process of compressing the said residue and shape | molding a fuel pellet.
In this case, as in the fuel pellet manufacturing facility, the residue can be directly compressed to form a fuel pellet without passing through a drying step or a re-crushing step for the residue of the compressed object.

According to the present invention, it is possible to arbitrarily set the pressing surface pressure for the pressing object between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll. Therefore, it can be set as a constant and high pressing rate (squeeze efficiency) with respect to a pressing target object by setting a pressing surface pressure high. Moreover, the water content (water content) of the residue can be reduced, and the fuel efficiency can be greatly improved when the residue is diverted to fuel. In addition, the residue can be miniaturized.

According to the present invention, the configuration of the ring roll rotating means can be simplified.

According to the present invention, the pressing force of the pressing roll pressed by the pressing roll pressing means is efficiently transmitted to the ring roll and the inscribed roll. As a result, the pressing surface pressure between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll can be set higher.

According to the present invention, the biting position of the object to be squeezed is higher than the lowest end position of the inner peripheral surface of the ring roll, and the juice produced in the object to be squeezed is difficult to move to the residue storage part side. Become. As a result, the water content (water content) of the residue after pressing can be kept lower.

According to the present invention, by stabilizing the bulk (capacity) of the compressed object supplied to the space part, for example, the excessively supplied compressed object is suppressed to the space part, thereby smoothing the compressed object. Can be squeezed.

According to the present invention, the yield of the residue can be increased, for example, by pressing again the residue of the object to be pressed separated from the juice by the separation unit.

According to the present invention, the outer peripheral surface of the inscribed roll and the inner peripheral surface of the ring roll can be repaired without moving the repairing part over the entire circumference of each roll inside the inscribed roll or inside the ring roll. As a result, it is possible to reduce the size of the repairing part, and to arrange the repairing part adjacent to the inscribed roll and the ring roll without any trouble, so that the repairing can be reliably performed online.

According to the present invention, by stabilizing the rotation of the ring roll, the inner peripheral surface of the ring roll can be repaired smoothly and accurately.

According to the present invention, the outer peripheral surface of the inscribed roll is pressed and transferred to the inner peripheral surface of the ring roll, and the inner peripheral surface of the ring roll is repaired to repair the ring roll using the inscribed roll. Can do. Therefore, compared with the case where the repair unit includes a dedicated mechanism for repairing the ring roll, the repair unit can be reduced in size.

According to the present invention, when the residue after pressing is discharged from the space portion of the ring roll, it is possible to use air flow conveyance using air flow conveyance means. This allows for continuous discharge of the residue.

According to the present invention, the fuel pellets can be formed by directly compressing the residue without going through a drying step or re-crushing step. Thereby, the processing time at the time of manufacturing a fuel pellet can be shortened, and also a running cost can be reduced.

According to the present invention, since the moisture content (moisture content) of the residue of the compressed object is 35% or less, the residue can be in a so-called “caracara” state with less moisture. Thus, since the residue itself is very light, efficient residue conveyance using air current conveyance can be performed.

According to the present invention, since the average length of fibers remaining in the residue is 6 mm or less, a step of re-crushing the residue is not required when the residue is processed into fuel pellets. In producing fuel pellets from the residue, a step of re-crushing the residue is not necessary. Therefore, the residue after squeezing can be used as it is as a material for fuel pellets, the processing time for producing fuel pellets can be shortened, and the running cost can be reduced.

According to the present invention, the processing time for producing fuel pellets can be shortened, and the running cost can be reduced.

It is a schematic front view of 1st Embodiment of the expression equipment which concerns on this invention. It is a schematic sectional side view of 1st Embodiment of the expression equipment which concerns on this invention. It is a front view which shows the support state of the ring roll of 1st Embodiment of the expression equipment which concerns on this invention. It is a front view which shows the support state of the ring roll of 1st Embodiment of the expression equipment which concerns on this invention, and the surrounding member of a ring roll. It is sectional drawing which shows the detail of 1st Embodiment of the expression equipment which concerns on this invention. It is a front view which shows the other example of the support form of the ring roll of 1st Embodiment of the expression equipment which concerns on this invention. It is sectional drawing which shows the other example of the support form of the ring roll of 1st Embodiment of the expression equipment which concerns on this invention. It is a side view of the pressing target object supply part of 1st Embodiment of the pressing apparatus which concerns on this invention. It is sectional drawing of the pressing target object supply part of 1st Embodiment of the expression equipment which concerns on this invention. It is a schematic block diagram which shows an example of the residue discharge | emission means of 1st Embodiment of the expression equipment which concerns on this invention. It is a schematic block diagram which shows the other example of the residue discharge | emission means of 1st Embodiment of the expression equipment which concerns on this invention. It is a partial enlarged front view which shows the other example of the residue discharge | emission means of 1st Embodiment of the expression equipment which concerns on this invention. It is sectional drawing seen from the one part upper part which shows the other example of the residue discharge | emission means of 1st Embodiment of the expression equipment which concerns on this invention. It is a figure which shows the relationship between residual moisture content and Hertz surface pressure. It is a schematic front view of 2nd Embodiment of the expression equipment which concerns on this invention. It is a schematic sectional side view of 2nd Embodiment of the expression equipment which concerns on this invention. It is a schematic perspective view of 3rd Embodiment of the expression equipment which concerns on this invention. It is a schematic front view of 3rd Embodiment of the expression equipment which concerns on this invention. It is a schematic sectional drawing of the principal part of 3rd Embodiment of the expression equipment which concerns on this invention. It is a partial schematic longitudinal cross-sectional view of the principal part of the pressing target object supply part of 3rd Embodiment of the expression equipment which concerns on this invention. It is a schematic plan view which shows the principal part of the other example of the pressing target object supply part of 3rd Embodiment of the pressing apparatus which concerns on this invention. It is a schematic block diagram which shows an example of the collection | recovery part of 4th Embodiment of the expression equipment which concerns on this invention. It is a schematic perspective view of 4th Embodiment of the expression equipment which concerns on this invention. It is a schematic perspective view which shows the restoration part of 5th Embodiment of the expression equipment which concerns on this invention. It is a schematic perspective view which shows the restoration part of 6th Embodiment of the expression equipment which concerns on this invention. It is a schematic perspective view which shows the restoration part of 6th Embodiment of the expression equipment which concerns on this invention.

(First embodiment)
Hereinafter, 1st Embodiment of the expression equipment which concerns on this invention is described with reference to drawings.
1 to 13 show a first embodiment of a pressing device according to the present invention. FIG. 1 is a schematic front view of the first embodiment. FIG. 2 is a schematic sectional side view of the first embodiment. FIG. 3 is a front view showing a support state of the ring roll of the first embodiment. FIG. 4 is a front view showing a support state of the ring roll and members around the ring roll according to the first embodiment. FIG. 5 is a cross-sectional view showing details of the first embodiment.

As shown in FIGS. 1 to 5, the pressing device 10 of this embodiment includes a frame 1, a ring roll 2 that can be moved up and down by the frame 1, and can be rotated about a first rotation axis, and a ring roll. 2, an inscribed roll 3 that is arranged in a cylindrical space portion 2 </ b> A formed inside 2 and rotates around a second rotation axis that is arranged in parallel to the first rotation axis, and a lower part of the ring roll 2. And a pressing roll 4 that rotates around a third rotation axis that is arranged in parallel to the first rotation axis and that presses the outer peripheral surface of the ring roll 2.
Moreover, the squeezing device 10 moves the inscribed roll 3 and the pressing roll 4 relative to each other in a direction in which they approach or separate from each other, and the center between the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4. An adjustment means 33A for adjusting the distance is further provided.
The ring roll 2, the inscribed roll 3, and the pressing roll 4 are arranged so that their rotational axes are parallel to each other. Moreover, the ring roll 2, the inscribed roll 3, and the pressing roll 4 have a rotation center of the ring roll 2, a rotation center of the inscribed roll 3, and a pressing force when viewed from the respective rotation axis directions as shown in FIG. 1. The rotation center of the roll 4 is disposed on the same line L. Note that the line L extends in a direction orthogonal to each rotation axis of the ring roll 2, the inscribed roll 3, and the pressing roll 4.
In the present embodiment, front, rear, left and right of the pressing device 10 are defined with reference to FIGS. 1 and 2. The Xa direction in FIGS. 1 and 2 is defined as the left side, the Xb direction is defined as the right side, the Ya direction is defined as the front side, and the Yb direction is defined as the rear side.

The frame 1 includes a bottom plate portion 11 and a column portion 12 erected on the bottom plate portion 11. A pillow member 13 is interposed under one of the bottom plate portions in the left-right direction in FIG. As a result, the center line in the left-right direction extending in the up-down direction of the frame 1 (corresponding to the line L connecting the rotation centers of the rolls) moves upward in the vertical direction (vertical axis) in FIG. It is arranged obliquely so as to increase the amount of deviation to the left.

As shown in FIG. 3, the side surface of the ring roll 2 is pressed and supported by support rolls 16 extending left and right from a roll support portion 15 disposed at the top of the frame 1. Thereby, the ring roll 2 is arrange | positioned so that rotation is possible, the movement of the front-back direction is controlled.
In FIG. 3, only the front roll support portion 15 and the support roll 16 are illustrated, but the roll support portion 15 and the support roll 16 having the same configuration are also disposed on the rear side of the ring roll 2. In other words, the ring roll 2 is sandwiched from the front and rear by the support rolls 16 arranged at the front and rear, whereby movement in the front and rear direction is restricted.
Further, the support roll 16 has a tapered shape in which the inner peripheral side is narrower and the outer peripheral side is wider in accordance with the peripheral speed of the ring roll 2 (taper gradually increasing in diameter from the inner peripheral side of the ring roll 2 toward the outer peripheral side). Shape).

Further, as shown in FIGS. 3 and 4, the ring roll 2 is supported by a fixed roll 18 on the lower left side and supported by a movable roll 19 that is movable in the vertical direction on the lower right side. Thereby, the ring roll 2 is supported so that the movement in the up-down direction is possible while the movement in the left-right direction is restricted.
That is, the inscribed roll 3 and the ring roll 2 are arranged so that the distance between the roll centers can be changed because the inscribed roll 3 is attached to the fixed position.
The fixed roll 18 is attached to a fixed position with respect to the frame 1 via a roll support portion 18A. The movable roll 19 is supported by a roll support portion 21 attached to the frame 1 with an elastic member 20 interposed between the movable roll 19 and the frame 1. The roll support portion 21 is attached to the frame 1 by a gap formed between a bolt 22 that fixes the roll support portion 21 to the column portion 12 of the frame 1 and a bolt insertion hole 21 a formed in the roll support portion 21. It can be moved.
As shown in FIG. 4, a sleeve 23 is interposed between the bolt 22 and the inner peripheral surface of the bolt insertion hole 21a.

Instead of the movable roll 19, as shown by a two-dot chain line in FIG. 4, the right side portion of the ring roll 2 may be supported by a fixed roll 24 that contacts the right end of the ring roll 2. In this case, the ring roll 2 is supported so that the movement in the vertical direction is possible while the movement in the left-right direction is restricted by the left lower part and the right part being supported by the both fixed rolls 18, 24.
Further, as a method for supporting the movement of the ring roll 2 in the vertical direction while restricting the movement of the ring roll 2 in the left-right direction, the fixed roll 24 is arranged on the right side of the ring roll 2 in FIG. A fixed roll may be arranged on the left side of the same at the same height as the fixed roll 24 on the right side, and the ring roll 2 may be supported by both the fixed rolls.

As shown in FIGS. 2 and 5, in the inscribed roll 3, each small-diameter shaft portion 3 a extending in the front-rear direction is supported by a bearing block 26 via a bearing 25. The bearing block 26 is attached to the column portion 12 of the frame 1. That is, the inscribed roll 3 is rotatably disposed at a predetermined position.
As shown in FIG. 5, a rotating shaft 28 is coupled to the rear of the inscribed roll 3 via a coupling 27, and a driving unit 30 such as a motor is coupled to the rotating shaft 28 via a coupling 29. Yes. That is, the drive unit 30, the rotating shaft 28, and the like constitute inscribed roll rotating means 30 </ b> A that rotates the inscribed roll 3.

In addition, in order to raise a pressing surface pressure, it is preferable to make the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 which are in a mutually opposing position through a pressing target object into a smooth surface. Moreover, in order to improve the biting property to a pressing target object, it is preferable that there are fine unevenness | corrugations in the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3, for example like a plain. Thus, the shape of the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 is determined in consideration of the pressing surface pressure and the biting property.
In particular, since the squeezed object is directly squeezed between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3, the shapes of the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 are as described above. It is preferable to devise.

In the pressing roll 4, each small-diameter shaft portion 4 a extending in the front-rear direction is supported by a bearing block 32 via a bearing 31. The bearing block 32 is supported by the column part 12 which comprises the flame | frame 1 so that a vertical motion is possible.
The bearing block 32 is pressed upward by a pressing cylinder 33 interposed between the bottom block 11 of the frame 1. That is, the pressing cylinder 33 constitutes a pressing roll pressing unit that presses the pressing roll 4 upward through the bearing block 32, that is, toward the inscribed roll 3 through the ring wall portion of the ring roll 2.
When the pressing cylinder 33 presses the pressing roll 4 toward the inscribed roll 3, the inscribed roll 3 and the pressing roll 4 approach each other, and the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4 are The center-to-center distance is reduced. Therefore, the pressing surface pressure generated between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 can be increased. Thus, by using the pressing cylinder 33, the center-to-center distance between the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4 can be arbitrarily adjusted, and the pressing surface pressure can be set to a desired value. Is possible.
Therefore, the pressing cylinder 33 constitutes an adjusting means 33 </ b> A that adjusts the center-to-center distance between the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4.

A rotating shaft 35 is connected to the rear of the pressing roll 4 via a coupling 34, and a driving unit 36 such as a motor is connected to the rotating shaft 35. Then, the rotation of the drive unit 36 is transmitted to the pressing roll 4 through the rotating shaft 35, and the rotation of the pressing roll is further transmitted to the ring roll 2. That is, the drive unit 36 or the like that is a pressing roll rotating unit that rotates the pressing roll constitutes a ring roll rotating unit 36A that rotates the ring roll 2.
The pressing cylinder 33 further constitutes rotation transmitting means for transmitting the rotation of the pressing roll 4 to the ring roll 2 by friction to rotate the ring roll 2.

In the examples shown in FIGS. 4 and 5, the ring roll 2 is supported by the fixed roll 18 and the movable roll 19 so as to be movable in the vertical direction while restricting the movement in the horizontal direction. Thus, as a method of supporting the ring roll 2 so as to be movable in the vertical direction while restricting the movement in the left-right direction, the one shown in FIGS. 6 and 7 using a bearing block can be considered.
FIG. 6: is a front view which shows the other example of the support form of the ring roll 2 in 1st Embodiment of the expression equipment which concerns on this invention. FIG. 7: is sectional drawing which shows the other example of the support form of the ring roll 2 in 1st Embodiment of the expression equipment which concerns on this invention.

In the bearing block 37, left and right arms 38A and 38B are arranged so as to protrude outwardly from the left and right sides of the column part 12 and to extend to the center in the front-rear direction and to be lifted upward. Rolls 39 are respectively attached to the ends of the left and right arms 38A and 38B, and the ring roll 2 is supported by the left and right rolls 39.
These rolls 39 that support the ring roll 2 move up and down integrally with the bearing block 37 and the pressing roll 4 that is rotatably supported by the bearing block 37. Thereby, the ring roll 2 pressed upward by the pressing roll 4 can be supported so as to be movable in the vertical direction while restricting the movement in the horizontal direction.

As shown in FIG. 4, the lower portion of the space 2 </ b> A formed inside the ring roll 2 is divided into two by the inscribed roll 3. And the left side of the inscribed roll 3 becomes the pressing object input part 40, and the right side of the inscribed roll 3 becomes the residue storage part 41 in which the residue after pressing is stored. Above the inscribed roll 3, a first scraper 42 supported by a bracket 15a extending above the roll support portion 15 is provided. The first scraper 42 is provided such that its tip abuts against the inscribed roll 3. The first scraper 42 removes residues adhering to the outer peripheral surface of the inscribed roll 3.
Further, a second scraper 43 supported by the roll support unit 15 is provided in the residue storage unit 41 so as to contact the ring roll 2. By the second scraper 43, residues adhering to the inner peripheral surface of the ring roll 2 are removed.

Side plate portions 45 and 46 are provided on the left and right sides of the inner side of the ring roll 2 and are tapered so that the lower end is curved along the outer peripheral surface of the inscribed roll. These side plate portions 45, 46, the outer peripheral surface of the inscribed roll 3, and the inner peripheral surface of the ring roll 2 divide the above-described pressing object input portion 40 and the residue storage portion 41.

A pressing target supply unit 48 is connected to the pressing target input unit 40, and the pressing target supply unit 48 supplies the pressing target to the pressing target input unit 40.
FIG. 8A shows a side view of the compressed object supply unit 48 in the first embodiment of the pressing device according to the present invention. FIG. 8B shows a cross-sectional view of the pressing object supply unit 48 in the first embodiment of the pressing device according to the present invention.
As shown in FIGS. 8A and 8B, the compressed object supply unit 48 includes a cylindrical body 49, a rotatable screw 50 disposed in the cylindrical body 49, and a hopper 51 provided on the proximal end side of the screw 50. And a rotation drive unit 52 such as a motor for rotating the screw 50. These members constituting the compressed object supply unit 48 are supported by a bracket 53 extending from the frame 1.
In the pressing object supply unit 48, the pressing object input into the hopper 51 is conveyed to the tip side by the screw 50 rotated by the rotation driving unit 52 and continuously supplied to the pressing object input unit 40. The

As shown in FIG. 4, a residue discharge unit 55 is connected to the residue storage unit 41, and the residue stored in the residue storage unit 41 is discharged to the outside by the residue discharge unit 55.
FIG. 9 is a schematic configuration diagram illustrating an example of a residue discharging unit in the first embodiment of the pressing device according to the present invention. The residue discharging means 55 shown in FIG. 9 is an airflow conveying means 55A using an airflow.

The air flow conveying means 55A includes a residue transfer pipe 57 extending from the residue storage section 41, an air driving source 58 such as a compressor or a blower connected to the residue transfer pipe 57 via a branch pipe 57a, and a middle portion of the residue transfer pipe 57. And a bag filter 60 attached to the tip of the residue transfer pipe 57.
According to this air flow conveying means 55A, the negative pressure generated in the residue transfer pipe 57 by the air drive source 58 is used to suck in the residue stored in the residue storage section 41, and most of the sucked residue is recovered by the cyclone 59. . Dust such as small dust flowing through the residue transfer pipe 57 is collected by the bag filter 60. A molding device 61 that compresses the residue of the object to be compressed and forms fuel pellets is connected to the subsequent stage of the cyclone 59.
The pressing device 10 and the molding device 61 constitute a fuel pellet manufacturing facility 69.

FIG. 10 is a schematic configuration diagram showing another example of the residue discharging means 55 in the first embodiment of the pressing device according to the present invention. The residue discharging means shown in FIG. 10 is a mechanical discharging means.

The mechanical discharge means 55B is provided in the vicinity of the discharge mechanism 62 for forcibly pressing and discharging the residue from the residue storage unit 41, the feeder 63 connected to the discharge side of the discharge mechanism 62, and the carrying-out portion of the feeder 63. Hopper 64 provided.
The hopper 64 is connected to air transport means 55A having the same configuration as described above, including a residue transfer pipe 57, an air drive source 58 such as a compressor or a blower, a cyclone 59 and a bag filter 60.

FIG. 11 is an enlarged front view of the discharge mechanism 62 of the mechanical discharge means 55B. FIG. 12 is a cross-sectional view of the discharge mechanism 62 of the mechanical discharge means 55B as viewed from above.
As shown in FIGS. 11 and 12, the discharge mechanism 62 is fixed to the slider rod 66, a slider rod 66 extending in the front-rear direction, a driving means 67 for moving the slider rod 66 in the length direction (front-rear direction), and the slider rod 66. And a discharge plate 68 that moves integrally with the slider rod 66. The discharge plate 68 is disposed at the rear end of the residue storage unit 41.
As shown in FIG. 11, the scraper 43 </ b> A is supported by a bracket 15 b that extends upward from the roll support portion 15. Residue adhering to the inner peripheral surface of the ring roll 2 is removed at the upper position of the ring roll 2 by the scraper 43A.

According to this mechanical discharge means 55B, the drive means 67 is driven at predetermined intervals to move the slider rod 66 in the front-rear direction. At this time, the discharge plate 68 moves integrally with the slider rod 66, and when moving forward, discharges the residue stored in the residue storage unit 41 to the outside. After discharging the residue, the discharge plate 68 returns to the rear end position of the initial position as the slider rod 66 moves.

The delivered residue is transferred to the hopper 64 via the feeder 63. Thereafter, the residue discharged from the hopper 64 is conveyed by the air current conveying means 55A, and most of the residue is collected by the cyclone 59. Dust such as small dust flowing through the residue transfer pipe 57 is collected by the bag filter 60.

Next, the effect | action of the pressing apparatus 10 of the said structure is demonstrated.
The inscribed roll 3 is rotated in a predetermined direction by the inscribed roll rotating means 30A. On the other hand, the pressing roll 4 is pressed toward the upper ring roll 2 by the pressing cylinder 33. In this state, when the pressing roll 4 is rotationally driven by the driving unit 36, the rotation of the pressing roll 4 is transmitted to the ring roll 2, and the ring roll 2 is rotated in the same direction as the inscribed roll 3.
And when the pressing target object, such as sugar cane or oil palm, is supplied from the pressing target supply unit 48 to the pressing target input unit 40, as described above, the inner peripheral surface of the ring roll 2 that rotates in the same direction. It is bitten between the outer peripheral surfaces of the inscribed rolls 3 and squeezed.

Here, the ring roll 2 is pressed to the inscribed roll 3 side by the pressing cylinder 33 via the pressing roll 4. Therefore, when the object to be squeezed is bitten between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3, the compressed object is separated by the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3. It is squeezed directly. At the same time, the ring roll 2 and the pressing roll 4 are rotated together by the amount of the object to be squeezed between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3, for example, 4 moves backward with respect to the inscribed roll 3 by the movement amount S shown in FIG. Thereby, the surface pressure (squeezing surface pressure) of the ring roll 2 and the inscribed roll 3 with respect to the object to be compressed can be maintained at a predetermined value.

Even when the material and shape of the object to be compressed change, the pressing force applied to the pressing roll 4 of the pressing cylinder 33, that is, the pressing surface pressure by the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 is appropriately set to a value. Can be set.
As a result, compared with the squeezing method using the squeezing device in which the gap between the conventional ring roll 2 and the inscribed roll 3 is kept constant, the squeezed object has a constant and relatively high squeezing rate. At the same time, the water content (water content) of the residue can be reduced. In addition, since the pressing force can be set high, the residue can be made finer.

Moreover, in the pressing apparatus 10 of this embodiment, each center of the ring roll 2, the inscribed roll 3 and the pressing roll 4 is arranged on the same line L.
Thereby, the pressing force of the pressing roll 4 pressed by the pressing cylinder 33 is efficiently transmitted to the ring roll 2 and the inscribed roll 3. As a result, the object to be compressed can be efficiently squeezed between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3.

Further, in the squeezing device 10 of this embodiment, the line L connecting the centers of the ring roll 2, the inscribed roll 3 and the pressing roll 4 is at a predetermined angle (for example, 5 ° to 20 °) with respect to the vertical direction (vertical axis). ) It is arranged to be inclined. Moreover, the rotation direction exit side of the ring roll 2 and the inscribed roll 3 (after both the rolls are in contact with each other, the side spreading along the rotation direction, that is, after the ring roll 2 and the inscribed roll 3 are in contact with each other, with the rotation The line L inclines to the left with respect to the vertical axis so that the rolls 2 and 3 are located in a direction higher than the lowermost end of the inner peripheral surface of the ring roll 2. Are arranged.

Thereby, as shown in FIG. 4, the biting position K of the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 into the object to be compressed is the lowest end position Z of the inner peripheral surface of the ring roll 2. 1, the biting position K is located above the lowest end position Z of the inner peripheral surface of the ring roll 2 as a result.

Here, the space part 2A inside the ring roll 2 has the biting position K as a boundary, one (left side in FIG. 1) is the pressing object input part 40, and the other (right side) is the residue storage part 41. It has become. Since a slight gap is formed in the biting portion, the biting position K is a ring roll in view of the fact that the juice oozes out from the squeezed object input unit 40 toward the residue storage unit 41 via the biting position K. Being above the lowest end position Z of the inner peripheral surface of 2 means that the squeezed produced by the squeeze object input unit 40 is less likely to move to the residue storage unit 41 side.
As a result, the water content (water content) of the residue after pressing can be kept lower.

Moreover, in embodiment shown in FIG. 9, the air current conveyance means 55A using airflow was used as the residue discharge means 55 which discharges the residue of the pressing target object after being squeezed by the residue storage part 41 from the residue storage part 41. An example is shown. In this way, when the air transport means 55A uses an air stream, when the residue is light, continuous and efficient transport can be performed.
Here, in the pressing method of this embodiment, the pressing roll 4 is pressed to the ring roll 2 side by the pressing cylinder 33. Thereby, the pressing surface pressure (Hertz surface pressure) between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 can be arbitrarily set, and by increasing the pressing surface pressure, It is possible to reduce the water content (water content) of the residue to a predetermined value or less.

Here, FIG. 13 shows the relationship between the residual moisture content and the Hertz surface pressure when oil palm is squeezed. FIG. 13 is a diagram showing the relationship between the residual water content (water content) and the Hertz surface pressure, where the vertical axis represents the residual water content and the horizontal axis represents the Hertz surface pressure. Depending on the size and shape of the object to be squeezed, it is classified into three types: a crushed piece, a crushed piece blanket obtained by compacting the crushed piece by compression, and a plate material (Katsura stripping material).

In FIG. 13, kg / mm ² (kilogram per square millimeter) is adopted as the unit of the horizontal axis, but when this unit is converted to MPa (megapascal), 60 kg / mm ² , 70 kg / mm ² , 80 kg / mm ² , 90 kg / mm ² , 100 kg / mm ² , 110 kg / mm ² , and 120 kg / mm ² are about 588 MPa, about 686 MPa, about 784 MPa, about 882 MPa, about 980 MPa, about 980 MPa, and about 1078 MPa, respectively. About 1176 MPa.

As apparent from FIG. 13, by setting the Hertz surface pressure to 70 kg / mm ² or more (approximately 686 MPa or more), the water content (water content) of the residue after pressing can be made 35% or less. Thus, by raising the pressing force of the pressing cylinder 33 to a predetermined value, the pressing (Hertz) surface pressure between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 is increased, and the pressure after the pressing is increased. The residue can be in a so-called “caracara” state with low moisture. Thereby, continuous and efficient conveyance using the said air current conveyance means 55A can be performed.

In addition, as shown in FIG. 13, by further increasing the Hertz surface pressure to 90 kg / mm ² (approximately 882 MPa or more) or more, for example, the average length of fibers remaining in the residue of the compressed object is 6 mm or less. Can be.
In this case, when the fuel pellet production facility 69 provided with the molding device 61 is used to produce the fuel pellet from the residue, a step of re-crushing the residue is not necessary. It can be used as a material. Therefore, the running cost when manufacturing fuel pellets can be reduced.

The present invention is not limited to the above-described first embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.

(Second Embodiment)
For example, in the said 1st Embodiment, the line L which connects each centerline of the ring roll 2, the inscribed roll 3, and the press roll 4 inclines to the left so that it may become diagonal with respect to a perpendicular direction, and is arrange | positioned. However, it is not limited to this.
As shown in FIGS. 14 and 15, the pressing device 10 is configured such that the axes of the ring roll 2, the inscribed roll 3, and the pressing roll 4 are parallel to each other and are inclined with respect to the horizontal plane. The whole may be inclined in the front-rear direction. That is, the first embodiment shown in FIGS. 1 and 2 and the like may be tilted in a state where the tilt direction is different by 90 °.
FIG. 14 is a schematic front view of the second embodiment of the pressing device according to the present invention. FIG. 15: is a schematic sectional side view of 2nd Embodiment of the expression equipment which concerns on this invention. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In this case, as shown in FIG. 15, squeezed juice can be collected on one side (right side in FIG. 15) of the squeezed object throwing section 40 along the axis of the inscribed roll 3, and in terms of collection efficiency of squeezed Excellent.

(Third embodiment)
Next, a third embodiment of the expression device according to the present invention will be described with reference to FIGS.
FIG. 16 is a schematic perspective view of the third embodiment. FIG. 17 is a schematic front view of the third embodiment. FIG. 18 is a schematic cross-sectional view of the main part of the third embodiment. FIG. 19 is a partial schematic longitudinal sectional view of a main part of the compressed object supply unit of the third embodiment.
In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

In the squeezing device 10 of the first embodiment, the squeezing object supply unit 48 includes the cylindrical body 49, the screw 50, the hopper 51, and the rotation driving unit 52. However, in the squeezing device 70 of the present embodiment, FIG. As shown in FIG. 18, the compressed object supply unit 48 includes a vibration feeder 71 and a rotating roll 72.

The vibration feeder 71 conveys the object to be compressed by vibration. The vibration feeder 71 is supported by the frame 1 so as to be able to vibrate in the vertical direction, and is vibrated by a vibration unit (not shown). The vibration feeder 71 is formed in a bowl shape that opens upward, and extends in the conveyance direction D <b> 1 for conveying the object to be squeezed. In the illustrated example, the vibration feeder 71 is formed in a straight line shape in a plan view of the squeezing device 70 viewed from the vertical direction, and in the front-rear direction (the rotational axis direction of the ring roll 2, the rotational axis direction of the inscribed roll 3). , Along the rotation axis direction of the pressing roll 4.

The vibration feeder 71 is inclined so as to be directed downward from the rear end portion located on the rear side in the transport direction D1 in the vibration feeder 71 toward the front end portion located on the front side in the transport direction D1.
The rear end portion of the vibration feeder 71 is located outside the ring roll 2 and is a supplied portion to which a pressing object is supplied.

The front end portion of the vibration feeder 71 is formed in a tapered shape or a triangular shape that gradually decreases in width as it goes from the rear side to the front side in the plan view, and is located above the compressed object input portion 40 in the space portion 2A. Is located.
In addition, as shown in FIG. 18, the pressing target object injection | throwing-in part 40 is divided by a pair of said side-plate part 45 arrange | positioned at intervals in the front-back direction.

As shown in FIG. 16, the rotary roll 72 is disposed above the vibration feeder 71. The rotary roll 72 is supported by the frame 1 or the like so that the position in the vertical direction can be adjusted. The rotation axis of the rotary roll 72 extends in a direction orthogonal to the transport direction D1 in the plan view (θ shown in FIG. 16 is about 90 degrees). The rotating roll 72 is rotated by a rotating roll rotating unit 73 configured by, for example, a motor.

A large number of protrusions 74 are provided on the outer peripheral surface of the rotary roll 72. The protrusions 74 are intermittently provided on the outer peripheral surface of the rotating roll 72 over the entire length of the rotating roll 72 in the rotation axis direction, thereby forming a protrusion row 74 a. A plurality of protrusion rows 74 a are provided on the outer peripheral surface of the rotating roll 72 intermittently over the entire circumference in the circumferential direction of the rotating roll 72. The protrusion 74 extends linearly from the outer peripheral surface of the rotating roll 72 along the radial direction of the rotating roll 72. The protrusion 74 can be a rigid body or an elastic body.
As shown in FIG. 19, the upper surface of the vibration feeder 71 and the tip end portion of the protrusion 74 when positioned on the lower side of the outer peripheral surface of the rotary roll 72 are spaced apart by a certain distance t in the vertical direction. Yes.

In order to squeeze the squeezing object using the squeezing device 70, when the squeezing object part is supplied from the squeezing object supply part 48, the squeezing object is supplied to the supply part of the vibration feeder 71. In addition, the vibration feeder 71 is vibrated by the vibration unit, and the object to be squeezed is conveyed toward the front side along the conveyance direction D <b> 1 of the vibration feeder 71. Further, the rotating roll 72 is rotated on the vibration feeder 71 by the rotating roll rotating unit 73. At this time, the rotary roll 72 is rotated around the rotation axis so that a portion of the outer peripheral surface of the rotary roll 72 facing downward moves toward the rear side in the conveyance direction D1 of the vibration feeder 71.

Then, when the pressing object conveyed on the vibration feeder 71 to the front side in the conveying direction D1 tries to pass the lower side of the rotating roll 72, the protrusion 74 of the rotating roll 72 is A thing at the position of the distance t or more from the upper surface of the vibration feeder 71 is flipped away toward the rear side in the transport direction D1. At this time, since the protrusion 74 of the rotating roll 72 flips the compressed object backward, the rotating roll 72 is restricted from pressing the compressed object downward and compressing the compressed object.

As described above, according to the squeezing device 70 according to the present embodiment, the protrusion 74 of the rotary roll 72 is a squeezed object that is being transported on the vibration feeder 71 to the front side of the transport direction D1 in the transport direction D1. Play toward the back. Therefore, when the squeezing object on the vibration feeder 71 passes below the rotary roll 72, the portion of the squeezing object that has been stacked up to an excessive height is rear side in the transport direction D1. You can play it towards. Thereby, it becomes possible to make the compression target object which passed the lower side of the rotating roll 72 into a fixed height, suppressing the compression to a perpendicular direction, and the bulk of the compression target object supplied to the space part 2A ( Capacity) can be stabilized.
As a result, for example, it is possible to smoothly squeeze the compressed object by suppressing the excessively supplied compressed object in the space 2A.

In addition, the pressing object supply part 48 of this embodiment can be suitably changed into another form, for example, can be changed into a form as shown in FIG. FIG. 20: is a schematic plan view which shows the principal part of the other example of a pressing target object supply part in 3rd Embodiment of the expression equipment which concerns on this invention.

The pressing object supply unit 48 illustrated in FIG. 20 further includes a return unit 75 that collects the pressing object blown off by the protrusions 74 along with the rotation of the rotary roll 72 and returns it to the vibration feeder 71.
The return unit 75 is disposed below the vibration feeder 71 and is configured by, for example, a belt conveyor. The return unit 75 returns the squeezed object that has been blown off from the vibration feeder 71 and dropped onto the upper surface to the vibration feeder 71. In the illustrated example, the return unit 75 conveys the compressed object along a first inclined direction D2 that is inclined in the conveying direction D1 of the vibration feeder 71 in the plan view.

Here, in the pressing object supply unit 48 shown in FIG. 20, the rotation axis of the rotary roll 72 is further inclined in the transport direction D1 rather than in the direction orthogonal to the transport direction D1 in the plan view. It extends in the second inclined direction D3, which is a direction orthogonal to the direction D2.
Even in this case, when the object to be compressed on the vibration feeder 71 passes below the rotary roll 72, a portion of the object to be compressed stacked up to an excessive height is conveyed. Play it toward the back of the direction D1. However, the squeezed object to be flipped is blown off toward the rear side in the transport direction D1 rather than being flipped off straight along the transport direction D1, but along the first inclined direction D2. In other words, the number of objects that are flipped along the direction inclined in the transport direction D1 in the plan view increases.

(Fourth embodiment)
Next, 4th Embodiment of the expression equipment which concerns on this invention is described with reference to FIG. 21 and FIG. FIG. 21 is a schematic configuration diagram illustrating an example of a collection unit according to the fourth embodiment. FIG. 22 is a schematic perspective view showing the fourth embodiment.
In the fourth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

The squeezing apparatus 80 of this embodiment is further provided with the collection | recovery part 81 which collect | recovers the squeezed juice squeezed from the pressing target object, as shown in FIG. The recovery unit 81 can be employed in a form in which an airflow conveying means 55A as shown in FIG. 9 is adopted as the residue discharging means 55, or a mechanical discharging means 55B as shown in FIG. It is also possible to adopt a form in which is adopted.

As shown in FIG. 22, the collection unit 81 includes a separation unit 82, resupply units 83 a and 83 b, and a collection pan 84.
The separation unit 82 separates the residue of the compressed object mixed in the juice from the juice. The separation unit 82 includes a mesh conveyor 85 and a separation roll 87.

The mesh conveyor 85 is formed in an endless belt shape, and is disposed below the pressing roll 4 and spaced from the pressing roll 4. The mesh conveyor 85 is wound between a pair of conveyor rolls 86 whose rotation axis extends in the front-rear direction, and travels in the left-right direction, which is a direction orthogonal to the front-rear direction, in the plan view. In the mesh conveyor 85, the upper part of the mesh conveyor 85 that is located above the pair of conveyor rolls 86 and whose surface faces upward is the side where the pressing object input unit 40 is located relative to the inscribed roll 3 in the left-right direction. Travel toward (left side in FIG. 22, hereinafter referred to as the input side).

The separating roll 87 is disposed adjacent to the left and right direction at a portion of the pair of conveyor rolls 86 located on the input side. Separation roll 87 presses the residue adhering to mesh conveyor 85 between conveyor roll 86 and mesh conveyor 85 on the input side to squeeze out moisture from the residue. The residue whose moisture has been squeezed out by the separation roll 87 falls from between the separation roll 87 and the conveyor roll 86.

The resupply units 83a and 83b supply the residue separated by the separation unit 82 to the space 2A. In this embodiment, as the resupply parts 83a and 83b, the first resupply part 83a that supplies the residue directly to the pressing object input part 40 and the pressing object supply part 48 to the pressing object input part 40 are provided. And a second re-supply unit 83b that is supplied through the second re-supply unit 83b. Each of the first resupply unit 83a and the second resupply unit 83b can be configured by a known mechanism such as a belt conveyor.

The collection pan 84 collects the juice from which the residue has been separated by the separation unit 82. The collection pan 84 is disposed below the mesh conveyor 85. In the present embodiment, the juice that has been filtered through the mesh conveyor 85 and dropped from the mesh conveyor 85 can also be collected.

As described above, according to the squeezing device 80 according to the present embodiment, since the collection unit 81 includes the separation unit 82, the purity of the juice to be collected can be increased. Furthermore, since the collection | recovery part 81 is equipped with the 1st resupply part 83a and the 2nd resupply part 83b, the residue of the pressing target object isolate | separated from the squeezed by the separation part 82 can be squeezed again. Thereby, for example, the yield of the residue can be increased to improve the yield of the residue.

(Fifth embodiment)
Next, 5th Embodiment of the expression equipment which concerns on this invention is described with reference to FIG. FIG. 23 is a schematic perspective view showing a repair portion of the fifth embodiment.
In the fifth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

23, the squeezing device 90 of this embodiment further includes a repair unit 91 that repairs the outer peripheral surface of the inscribed roll 3 and the inner peripheral surface of the ring roll 2. The restoration unit 91 includes an inscribed roll cutting unit 92, a ring roll cutting unit 93, and a plurality of holding rolls 94.

The inscribed roll cutting unit 92 repairs by cutting the outer peripheral surface of the inscribed roll 3, and the ring roll cutting unit 93 repairs by cutting the inner peripheral surface of the ring roll 2. Each of the inscribed roll cutting part 92 and the ring roll cutting part 93 is constituted by a cutting tool such as a cutting tool, for example.
The inscribed roll cutting part 92 and the ring roll cutting part 93 are arranged so as to be relatively movable in the front-rear direction with respect to the ring roll 2, and enter the space part 2 </ b> A of the ring roll 2. Evacuation is possible.

The holding roll 94 supports the outer peripheral surface of the ring roll 2. The rotation axis of the holding roll 94 extends in parallel with the rotation axis of the ring roll 2. The plurality of holding rolls 94 are arranged on the outer peripheral surface of the ring roll 2 so as to be shifted in the circumferential direction of the ring roll 2 (hereinafter simply referred to as the circumferential direction) with respect to the pressing roll 4. Two holding rolls 94 are provided outside the ring roll 2, and are arranged on the upper side of the ring roll 2.

Each holding roll 94 is provided so as to be able to advance and retreat in the radial direction of the ring roll 2 (hereinafter simply referred to as the radial direction) with respect to the ring roll 2, and advances forward inward in the radial direction with respect to the ring roll 2. By doing so, the outer peripheral surface of the ring roll 2 is supported from the outside in the radial direction, and the support of the ring roll 2 is released by moving backward toward the outside in the radial direction.
The two holding rolls 94 support a portion of the outer peripheral surface of the ring roll 2 facing upward in a state of being separated in the left-right direction. The outer peripheral surface of the ring roll 2 is supported by these two holding rolls 94 and the pressing roll 4 at three locations equally spaced in the circumferential direction, and is so-called three-point supported.

When squeezing the object to be squeezed using the squeezing device 90, the inner peripheral surface of the ring roll 2 and the squeezing object squeezed between the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 The outer peripheral surface of the inscribed roll 3 may be damaged. In this case, there is a possibility that the pressing surface pressure is difficult to stabilize.
Therefore, for example, the outer peripheral surface of the inscribed roll 3 and the inner peripheral surface of the ring roll 2 are periodically repaired by the repair unit 91. In addition, the repair work shown below can be implemented by controlling each structure by the control part which is not illustrated comprised with a computer etc., for example.

When repairing the outer peripheral surface of the inscribed roll 3, the inscribed roll cutting portion 92 is advanced to enter the space portion 2 </ b> A of the ring roll 2. Further, the relative positions of the ring roll 2 and the inscribed roll 3 are adjusted, and the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 are separated.
Then, while rotating the inscribed roll 3 by the inscribed roll rotating means 30A, the inscribed roll cutting portion 92 is brought into contact with the outer peripheral surface of the inscribed roll 3, and the outer peripheral surface of the inscribed roll 3 is reshaped. Repair (for example by scraping). Thereafter, the inscribed roll cutting portion 92 is retracted from the space portion 2A.

When repairing the inner peripheral surface of the ring roll 2, the ring roll cutting portion 93 is advanced to enter the space portion 2 </ b> A of the ring roll 2. Further, the relative positions of the ring roll 2 and the inscribed roll 3 are adjusted, and the inner peripheral surface of the ring roll 2 and the outer peripheral surface of the inscribed roll 3 are separated. Further, the outer peripheral surface of the ring roll 2 is pressed by the pressing roll 4, and the outer peripheral surface of the ring roll 2 is supported by the holding roll 94.
Then, while the ring roll 2 is rotated by the ring roll rotating means 36A, that is, the pressing roll 4 is rotated by the drive unit 36, the rotation of the pressing roll 4 is transmitted to the ring roll 2 by friction to rotate the ring roll 2. However, the ring roll cutting portion 93 is brought into contact with the inner peripheral surface of the ring roll 2 to repair the inner peripheral surface of the ring roll 2 by repairing. Thereafter, the ring roll cutting portion 93 is retracted and retracted from the space portion 2A.
The outer peripheral surface of the inscribed roll 3 and the inner peripheral surface of the ring roll 2 can be repaired in parallel.

As described above, according to the squeezing device 90 according to the present embodiment, the repairing unit 91 repairs the outer peripheral surface of the inscribed roll 3 while rotating the inscribed roll 3. The outer peripheral surface of the inscribed roll 3 can be repaired over the entire circumference without being moved around the entire circumference outside the inscribed roll 3. When rotating the inscribed roll 3, the inscribed roll rotating means 30A can be used.

Furthermore, since the repairing part 91 repairs the inner peripheral surface of the ring roll 2 while rotating the ring roll 2, the inner peripheral surface of the ring roll 2 is moved without moving the repairing part 91 over the entire periphery of the ring roll 2. It can be repaired over the entire circumference. Further, when the ring roll 2 is rotated, the ring roll rotating means 36A can be used.

That is, the outer peripheral surface of the inscribed roll 3 and the inner peripheral surface of the ring roll 2 can be repaired without moving the repairing part 91 outside the inscribed roll 3 or in the ring roll 2 over the entire circumference of each roll. . As a result, the size of the restoration unit 91 can be reduced, and the restoration unit 91 can be disposed adjacent to the inscribed roll 3 and the ring roll 2 without hindrance, and can be reliably restored online.

Further, a plurality of holding rolls 94 are arranged in the circumferential direction of the ring roll 2 with respect to the pressing roll 4 on the outer circumferential surface of the ring roll 2. Therefore, when the ring roll 2 is rotated in order to repair the press roll 4, the outer peripheral surface of the ring roll 2 is separated by at least three in the circumferential direction by the press roll 4 and the plurality of holding rolls 94. Can be supported in place. Thereby, rotation of the ring roll 2 can be stabilized and the inner peripheral surface of the ring roll 2 can be restored smoothly and accurately.

(Sixth embodiment)
Next, 6th Embodiment of the expression equipment which concerns on this invention is described with reference to FIG. 24 and FIG. 24 and 25 are schematic perspective views showing the repairing part of the sixth embodiment.
In the sixth embodiment, the same components as those in the fifth embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

In the squeezing device 90 of the fifth embodiment, the restoration unit 91 includes the ring roll cutting unit 93. However, in the squeezing device 100 of the present embodiment, instead of the ring roll cutting unit 93, the inscribed roll 3 is provided. The hardness is higher than the hardness of the ring roll 2. In the illustrated example, the hardness on the outer peripheral surface of the inscribed roll 3 is higher than the hardness on the inner peripheral surface of the ring roll 2.

In this pressing device 100, when the outer peripheral surface of the inscribed roll 3 and the inner peripheral surface of the ring roll 2 are repaired, first, as shown in FIG. to repair.
Thereafter, the inner peripheral surface of the ring roll 2 is repaired. At this time, as shown in FIG. 25, first, the ring roll 2 is pressed by the pressing roll 4, and the ring roll 2 is sandwiched between the pressing roll 4 and the inscribed roll 3. Then, the inscribed roll 3 and the ring roll 2 are respectively rotated while pressing the outer peripheral surface of the inscribed roll 3 cut by the inscribed roll cutting portion 92 against the inner peripheral surface of the ring roll 2.
Here, since the hardness of the inscribed roll 3 is higher than the hardness of the ring roll 2 as described above, the outer peripheral surface of the repaired inscribed roll 3 is pressed and transferred to the inner peripheral surface of the ring roll 2. For example, the roughness of the inner peripheral surface of the ring roll 2 can be smoothed by the inscribed roll 3. Thereby, the inner peripheral surface of the ring roll 2 is restored.

As described above, according to the pressing device 100 according to the present embodiment, the inner peripheral surface of the ring roll 2 is restored by pressing and transferring the outer peripheral surface of the inscribed roll 3 to the inner peripheral surface of the ring roll 2. Thus, the ring roll 2 can be repaired using the inscribed roll 3. Therefore, the size of the restoration unit 91 can be reduced as compared with a case where the restoration unit 91 includes a dedicated mechanism for restoring the ring roll 2.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in each said embodiment, although the expression apparatus is made to incline, it is not restricted to this. For example, the squeezing device may be erected vertically without being inclined.
Moreover, in each said embodiment, the ring roll 2, the inscribed roll 3, and the press roll 4 are arrange | positioned so that a mutual rotation axis may become parallel, and when it sees from a rotation axis direction, the rotation center of the ring roll 2 is provided. And the center of rotation of the inscribed roll 3 and the center of rotation of the pressing roll 4 need only be arranged on the same line. For example, the ring roll 2, the inscribed roll 3 and the pressing roll 4 are arranged horizontally. It does not matter. Even in this case, the same effect can be achieved.
Further, in each of the embodiments described above, the adjusting means 33A includes the pressing cylinder 33 and presses the pressing roll 4 upward from below, so that the center between the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4 is between. Although the distance is adjusted, the present invention is not limited to this case. For example, by pressing the inscribed roll 3 downward from above, the center-to-center distance between the rotation center of the inscribed roll 3 and the rotation center of the press roll 4 may be adjusted. The center distance between the center of rotation of the inscribed roll 3 and the center of rotation of the press roll 4 may be adjusted by pressing the inscribed roll 3 downward from above.
In any case, by moving the inscribed roll 3 and the pressing roll 4 relatively in the direction in which they approach or separate from each other, the center between the rotation center of the inscribed roll 3 and the rotation center of the pressing roll 4 As long as the distance can be adjusted, the adjusting means may be configured in any way.

Further, in each of the above embodiments, the ring roll 2 is rotated by rotating the pressing roll 4 and transmitting the rotation of the pressing roll 4 to the ring roll 2 when rotating the ring roll 2. It is not something that can be done. For example, the ring roll 2 may be directly rotated by a rotation driving unit.

Moreover, in each said embodiment, although only one squeezing apparatus is provided, a several squeezing apparatus is arrange | positioned in series, for example, a squeezing target object is squeezed by a front | former stage squeezing apparatus, and it is a squeezing apparatus of the back | latter stage side after that. You may squeeze continuously the residue after pressing. In this case, for example, by connecting the former-stage pressing device and the latter-stage pressing device with the air flow conveying means 55A shown in FIG. 9, the residue of the object to be compressed in the preceding-stage is continuously supplied to the latter-stage pressing device. It is possible to perform continuous squeezing using a plurality of squeezing devices.

In addition, it is possible to appropriately replace the constituent elements in the embodiment with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

According to the present invention, it is possible to arbitrarily set the pressing surface pressure against the pressing object between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll, and by setting the pressing surface pressure high. It is possible to achieve a constant and high pressing rate (squeezing efficiency) for the object to be compressed. Moreover, the water content (water content) of the residue can be reduced, and the fuel efficiency can be greatly improved when the residue is diverted to fuel. In addition, the residue can be miniaturized. Therefore, it has industrial applicability.

1 frame, 2 ring roll, 2A space formed inside the 2A ring roll, 3 inscribed roll, 4 press roll, 10, 70, 80, 90, 100 pressing device, 15 roll support, 15a bracket, 18 fixed Roll, 19 movable roll, 20 elastic member, 21 roll support part, 30A inscribed roll rotating means, 33 pressing cylinder (pressing roll pressing means, rotation transmitting means), 33A adjusting means, 36 driving part (pressing roll rotating means, ring) Roll rotating means), 36A ring roll rotating means, 40 pressing object throwing part, 41 residue storing part, 48 pressing object supplying part, 55 residue discharging means, 55A air current conveying means, 55B mechanical discharging means, 69 fuel pellet manufacturing Equipment, 71 Vibrating feeder, 72 Rotating roll, 81 Collection unit, 2 separation unit, 83a, 83 b resupply unit, 91 recovery unit, 92 inscribed roll reformer cutting portion, 94 holding a roll

Claims (15)

1. An inscribed roll arranged rotatably,
   A rotatable ring roll in which the inscribed roll is arranged in a space formed inside, and a distance between roll centers with the inscribed roll is variably arranged;
   An inscribed roll rotating means for rotating the inscribed roll;
   A pressing roll that is arranged outside the ring roll and presses the outer peripheral surface of the ring roll;
   Adjusting means for adjusting the distance between the center of rotation of the inscribed roll and the center of rotation of the pressing roll by relatively moving the inscribed roll and the pressing roll in a direction in which they approach or separate from each other; ,
   A ring roll rotating means for rotating the ring roll,
   The object to be compressed put into the space of the ring roll is between the inner peripheral surface of the ring roll and the outer peripheral surface of the inscribed roll, and the outer peripheral surface of the ring roll and the outer periphery of the inscribed roll. Squeezing device directly squeezed by the face.
2. The squeezing device according to claim 1, wherein the adjusting unit includes a pressing roll pressing unit that presses the pressing roll to the inscribed roll side through a ring wall portion of the ring roll.
3. The ring roll rotating means is
   A pressing roll rotating means for rotating the pressing roll;
   The squeezing device according to claim 1, further comprising: a rotation transmission unit configured to transmit the rotation of the pressing roll to the ring roll by friction to rotate the ring roll.
4. The pressing device according to any one of claims 1 to 3, wherein the rotation centers of the ring roll, the inscribed roll and the pressing roll are arranged on the same line.
5. The squeezing device according to claim 4, wherein a line connecting the rotation centers of the ring roll, the inscribed roll and the pressing roll is arranged so as to be inclined at a predetermined angle with respect to a vertical direction.
6. The space part is connected to a pressing object supply part that supplies the pressing object to the space part,
   The compressed object supply unit is
   A vibration feeder for conveying the object to be compressed by vibration;
   A rotating roll disposed above the vibration feeder and provided with protrusions on the outer peripheral surface;
   The rotating roll rotates so that the object to be squeezed being conveyed to the front side in the conveying direction on the vibration feeder is flipped by the protrusion toward the rear side in the conveying direction. The pressing device according to any one of the above.
7. A recovery unit for recovering the juice extracted from the object to be compressed;
   The collection unit is
   A separation unit for separating the residue of the compressed object mixed in the juice from the juice;
   The squeezing device according to any one of claims 1 to 6, further comprising a refeeding unit that supplies the residue separated by the separating unit to the space.
8. A repair portion for repairing the outer peripheral surface of the inscribed roll and the inner peripheral surface of the ring roll;
   The repair unit repairs the outer peripheral surface of the inscribed roll while rotating the inscribed roll, and repairs the inner peripheral surface of the ring roll while rotating the ring roll. The pressing device according to one item.
9. The restoration unit includes a plurality of holding rolls that support the outer peripheral surface of the ring roll,
   The squeezing device according to claim 8, wherein the plurality of holding rolls are arranged in a circumferential direction of the ring roll with respect to the pressing roll on an outer peripheral surface of the ring roll.
10. The repair unit includes an inscribed roll cutting part that repairs by repairing an outer peripheral surface of the inscribed roll,
    The hardness of the inscribed roll is higher than the hardness of the ring roll,
    The restoration unit rotates the inscribed roll and the ring roll while pressing the outer peripheral surface of the inscribed roll, which has been cut by the inscribed roll cutting unit, against the inner peripheral surface of the ring roll. The pressing device according to claim 8 or 9, wherein the inner peripheral surface of the ring roll is repaired.
11. The squeezing device according to any one of claims 1 to 10, wherein an airflow conveying means for discharging a residue after the squeezed object is squeezed from the space part is connected to the space part.
12. The pressing device according to any one of claims 1 to 11,
    A fuel pellet manufacturing facility, comprising: a molding device that compresses a residue after the pressing object is compressed and forms fuel pellets after the pressing device.
13. A pressing method using the pressing device according to claim 11,
    A step of introducing an object to be compressed into the space of the ring roll;
    Between the inner circumferential surface of the ring roll and the outer circumferential surface of the inscribed roll, the compressed object is directly squeezed by the inner circumferential surface of the ring roll and the outer circumferential surface of the inscribed roll. A step of setting the moisture content of the residue of the compressed object to 35% or less;
    A step of conveying the residue to the outside of the space portion by the air flow conveying means.
14. The pressing method according to claim 13, wherein the pressing object is pressed so that an average length of fibers remaining in the residue is 6 mm or less.
15. The pressing method according to claim 14, comprising a step of compressing the residue to form a fuel pellet.

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