JP2003024759A - Stirring heat transfer apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a function for discharging an object to be treated stagnated in a stirring heat transfer apparatus while putting a beneficial point such that a heat transfer area per unit volume is large and stirring effect is high to practical use. SOLUTION: A plurality of hollow shafts 7 are horizontally arranged in a casing 1 having a jacket 6 provided to the outer periphery thereof so that the axial lines O thereof are made parallel to each other in a state rotatable around the axial lines O. A plurality of stirring plates 11 having notch parts 11A opened in a peripheral direction are provided to the hollow shafts 7 so that an interval is provided in the direction of the axial lines O at each hollow shaft 7 and the stirring plates 11 of one hollow shaft 7 are positioned between the mutual stirring plates 11 of the other hollow shaft 7 in the direction of the axial lines O between the mutually adjacent hollow shafts 7. Blades 12 capable of being inserted in and detached from the notch parts 11A of the stirring plates 11 of the other adjacent hollow shaft 7 accompanying the rotation of the hollow shafts 7 are provided to the outer peripheries of the hollow shafts 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention arranges a plurality of hollow shafts in a casing so as to be parallel and rotatable, and disposes a plurality of stirring plates on each hollow shaft.
The present invention relates to a stirring heat transfer device that heats or cools a processed material supplied to the casing while stirring.

[0002]

2. Description of the Related Art As a stirring heat transfer device of this type, conventionally,
In a substantially horizontal casing having an outer periphery of a jacket structure, there are rotating shafts arranged in parallel and stirring plates arranged on these rotating shafts, and such rotating shafts and stirring plates are hollow, and There is known a device that heats or cools a processed material such as powder or granules supplied into the apparatus while stirring them by allowing them to communicate with each other and passing a heat exchange medium through the inside of the jacket and the inside of the jacket. Then, in such a stirring heat transfer device, in order to increase the heat transfer area per unit capacity and improve the stirring effect, the rotating shaft is
An apparatus in which each stirring plate on one shaft as a shaft is partially inserted between adjacent stirring plates on the other shaft is also disclosed in, for example, Japanese Patent Publication No. 63-16974 and Japanese Utility Model Publication No. 63.
No. 25518, for example.

[0003]

By the way, in the case where there is a change in the kind of the processed product heated or cooled by such a stirring heat transfer device, after the processed product before switching is sufficiently discharged from the device, The following types of products are often required to be fed to the equipment. As an example, in the manufacturing process in which various resins are treated as above,
Many types of products are manufactured in the same process, and as many types as possible before switching are discharged in order to facilitate cleaning when switching types or to reduce the amount of processed material that is a mixture of types before and after switching. Will be required.

However, as described above, in order to increase the heat transfer area per unit volume and to improve the stirring effect, each stirring plate on one shaft is divided between adjacent stirring plates on the other shaft. In the case where the products are separated from each other, it is difficult for the processed product to move in the part sandwiched between the adjoining stirring plates and the casing. , The processed material remains. In this regard, in the conventional apparatus described in each of the above publications, each stirring plate is provided with a blade, but in this case, in order to avoid contact or interference of this blade with a multi-axis stirring plate. It is necessary to increase the distance between the two shafts and the distance between the stirring plates, resulting in a problem that the heat transfer area per unit capacity becomes small, the stirring effect also deteriorates, and the heat transfer ability deteriorates. Further, in the devices described in these publications, the stirring plate is provided with a cutout portion that opens in the circumferential direction to serve as a passage portion when the processed product is transferred in the axial direction of the hollow shaft, but the processed product has an adhesive property. When the property is strong, the cutout portion is filled with the processed material, which results in further obstructing the discharge of the processed material during the normal operation, especially during the above-described product type switching.

The present invention has been made under such a background and has a large heat transfer area per unit capacity as described above.
The purpose of the invention is to improve the function of discharging the processed material staying in the apparatus while keeping the advantage that the stirring effect is high.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems and achieve such an object, the present invention provides a plurality of hollow shafts which can rotate around their axes in a casing having a jacket on the outer circumference. And a plurality of stirring plates having a notch portion that opens in the circumferential direction in these hollow shafts are placed laterally with their axes parallel to each other, with a spacing in the axial direction for each hollow shaft, and Between adjacent hollow shafts are provided so that the stirring plate of the other hollow shaft is located between the stirring plates of one of the hollow shafts in the axial direction thereof, and the treated material supplied into the casing is A stirring heat transfer device for heating or cooling by transferring heat through the stirring plate by a heat exchange medium supplied into the hollow shaft while stirring by the stirring plate of the rotating hollow shaft, which comprises: On the outer periphery, the hollow shaft In accordance with the rotation, characterized in that a blade that can be inserted into and removed from the above cutout portion of the stirring plate of another hollow shaft adjacent. Therefore, in the stirring heat transfer device configured as described above, the blades provided on the outer periphery of the hollow shaft are inserted into and removed from the notches of the stirring plates of the other adjacent hollow shafts as the hollow shaft rotates. At the same time, since the processed material adhering to the inside of the notch and the processed material staying between the stirring plate and the casing are scraped out, it may interfere with other hollow shafts or stirring plates provided on other hollow shafts. Therefore, the intervals between the hollow shafts and the intervals between the agitation plates do not need to be increased more than necessary, and a large heat transfer area per unit capacity is ensured, and a high agitation effect is maintained while changing the product type. It becomes possible to promote the reliable and prompt discharge of the processed material such as time.

Here, in order to dispose the above-mentioned blades on the outer circumference of the hollow shaft so that they can be inserted into and removed from the cutout portions of the stirring plates of the other adjacent hollow shafts as the hollow shaft rotates, The blade may be installed between a pair of stirring plates that are adjacent to each other in the axial direction of the hollow shaft. In this case, since both ends of the blade are supported by the pair of stirring plates, It is possible to secure sufficient mounting rigidity. However, if it is difficult to install a blade between adjacent stirring plates on the same axis, the blade is directly projected to the outer circumference of the hollow shaft and inserted into or removed from the notch of the stirring plate of another shaft. It can also be possible. Further, if the structure is such that the position of the blade in the radial direction of the hollow shaft can be adjusted and the clearance between the blade and the casing can be adjusted, the processed material remaining between the blade and the casing can be discharged more reliably. The residual amount can be minimized, the movement of the processed material near the jacket of the casing is improved, and the heat transfer capacity is improved. In addition, the blade is inclined with respect to the axis of the hollow shaft, and the blade is installed at an angle with respect to the hollow shaft so that the product to be processed can be transferred in the axial direction of the hollow shaft. If the tilt angle of the blade can be adjusted at this time, the transfer speed of this processed material can be increased according to the property of the processed material or heating or cooling time. It is also possible to adjust.

[0008]

1 to 4 show a first embodiment of the present invention.
In the first embodiment, the present invention is applied to an agitating heat transfer device that continuously processes a processed material. That is, in the present embodiment, the casing 1 has a box shape having a substantially rectangular parallelepiped outer shape, and one end side in the longitudinal direction (left side in FIGS. 1 and 2) is more than the other end side (right side in FIGS. 1 and 2). The casing 1 is arranged so as to be slightly inclined, and a supply port 2 capable of continuously supplying a processed material is provided in the upper part of the one end side of the casing 1 and one side part of the other end side. Is provided with a discharge port 5 through which the processed material can be continuously discharged through the barrier plate 3 and the slide damper 4. Further, a plurality of jackets 6 ... Are arranged on the side of the casing 1 in the longitudinal direction thereof, and a heat exchange medium P such as cooling water or steam can be circulated.

In the casing 1, a pair of hollow shafts 7, 7 having the same diameter and the same length and having an outer cylindrical shape, each having its central axis O slightly inclined as described above, are provided.
Are arranged side by side so as to be along the above-mentioned longitudinal direction, and have their central axes O, O parallel to each other so as to be parallel in the horizontal direction. Both ends of these hollow shafts 7, 7 are projected in a sealed state from both end faces of the casing 1 and are rotatably supported by bearings 8 ... Gears 9, 9 having the same diameter and the same pitch that mesh with each other are attached. Further, one end of one of the hollow shafts 7 is connected with a rotation driving means 10 such as a motor and a speed reducer. The hollow shafts 7 and 7 are rotatable by the same number 10 in the opposite rotational directions T and T around the axes O and O at the same rotational speed. The hollow shafts 7, 7 have a double pipe structure as shown in FIG.
The heat exchange medium P such as cooling water or steam, which is the same as that circulated in the jacket 6, can be supplied from the other end side of the hollow shaft 7 so as not to interfere with its rotation. One end of the tube 7A is opened at one end inside the outer tube 7B, and the heat exchange medium P that has flowed to the one end side inside the inner tube 7A has a space between the inner tube 7A and the outer tube 7B at the other end side. Then, the hollow shaft 7 is discharged from the other end so as not to interfere with its rotation.

Further, in the inner pipe 7A, a large number of branch pipes 7C ...
Further, they are provided at equal intervals in the direction of the axis O, and their outer peripheral ends penetrate the outer pipe 7B and are opened to the outer periphery of the hollow shaft 7. 7C
The stirring plates 11 having a substantially disk-like outer shape centering on the axis O are provided at the positions where .. Therefore, these stirring plates 11 ... Are also arranged at equal intervals in the direction of the axis O of the hollow shaft 7.
In between, the stirring plates 11 of the other hollow shaft 7 are located at the centers of the stirring plates 11 and 11 adjacent to each other in the direction of the axis O of the one hollow shaft 7.
Are arranged in a staggered manner in the direction of the axis O so as to be positioned. Further, the stirring plate 11 has a disk shape of a substantially abacus piece shape whose thickness gradually decreases toward the outer peripheral side, and the inside thereof is hollow, and the branch pipe 7C has this hollow. The heat exchange medium P supplied into the inner pipe 7A is also opened in the agitating plate 11 that has been opened, and spreads into the agitating plate 11 through the branch pipe 7C.

The outer diameters of these stirring plates 11 are made equal, and the axis O of one hollow shaft 7 is set.
To the outer peripheral surface of the other hollow shaft 7 is made slightly smaller, so that the agitating plates 11 of both hollow shafts 7 and 7 are as shown in FIG. 4 when viewed parallel to the axes O, O. Is a straight line C connecting the axes O and O between the hollow shafts 7 and 7.
Are arranged so as to overlap each other in the peripheral portion of the. Further, the bottom surface of the casing 1 is close to the outer circumference of the stirring plate 11 centering on the axis lines O and O as shown in FIG. 3 in accordance with the shape of the stirring plates 11 of the hollow shafts 7 and 7 as described above. It has a generally W-shaped cross section that is concavely curved so that the circular arcs of the diameter are superposed. Here, the jacket 6 may be provided even on the bottom surface.

Furthermore, each stirring plate 11 is provided with
As shown in FIG. 3, a notch portion 11A is formed that opens in a fan shape in the circumferential direction around the axis O, and thus the stirring plate 1 is formed.
1 does not have a strict abacus piece disk shape, but has a C shape when viewed in the direction of the axis O. Here, this notch 11A
The end face of the stirring plate 11 that is cut out by the circumferential direction is closed so that the inside of the stirring plate 11 is kept closed except for the opening of the branch pipe 7C. The end faces 11B of the stirring plates 11 provided on the hollow shafts 7 and 7 facing the rotation direction T side are several stirring plates 11 located at the discharge port 5 portion on the other end side of the hollow shaft 7.
Except for ..., As it goes toward the other end side of the hollow shaft 7, the hollow shaft 7 is inclined toward the rear side in the rotation direction T of the hollow shaft 7 provided with the stirring plate 11. Further, in the stirring plates 11 provided on the respective hollow shafts 7, the positions of the cutout portions 11A in the circumferential direction are made to coincide with each other, and the cutout portions 11A are arranged in a line parallel to the axis O as shown in FIG. Are arranged side by side, and between the pair of hollow shafts 7, 7, the phase with respect to each rotation direction T is based on the straight line C where the stirring plates 11 of the hollow shafts 7, 7 overlap each other. When the notched portion 11A of the stirring plate 11 of one hollow shaft 7 is positioned on the straight line C, as shown in FIG. 4, the stirring plate 1 of the other hollow shaft 7 is displaced by 180 °.
The notch 11A of 1 ... Is set to be located on the side opposite to the straight line C by 180 °.

The outer circumferences of these hollow shafts 7, 7 are
180 ° with the notch 11A of each stirring plate 11 ...
A blade 12 is provided at the opposite position.
2 can be inserted into and removed from the notch 11A of the stirring plate 11 of the other hollow shaft 7 opposite to each other as the hollow shafts 7 rotate. Here, in the present embodiment, the blades 12 are in the form of a flat plate that extends in the axis O direction while facing the rotation direction T, and all the stirring plates 11 that are adjacent to each hollow shaft 7 in the axis O direction ... It is installed so as to be bridged between the two. More specifically, a pair of adjacent stirring plates 1
Both ends are bolted to brackets 13, 13 provided on the outer peripheral sides of the side surfaces of the hollow shafts 1, 11 facing each other. Blades 12 installed between the stirring plates 11 are arranged so as to cross the stirring plates 11 of the other hollow shaft 7 in the axis O, O direction. Then, the blade 12 moves as the hollow shafts 7 and 7 rotate.
The hollow shaft 7 opposite to the hollow shaft 7 provided with the blades 12 is inserted into the cutout portion 11A of the stirring plate 11 along the end face 11B facing the rotation direction T side. When the blade 12 is located on the straight line C, the notch 1
At the deepest portion of 1A, the hollow shaft 7 is closest to the other hollow shaft 7, and by further rotating the hollow shafts 7 and 7, the notch 11A is arranged along the end face facing the rear side in the rotation direction T. It is detached from the portion 11A, that is, it is relatively insertable into and removable from the cutout portion 11A.

Also, as described above, one of the insertion holes formed in the blade 12 or the bracket 13 for bolting the blade 12 to the bracket 13 and through which the bolt is inserted,
In the present embodiment, it is an elongated hole extending in the radial direction with respect to the axis O, so that the position of the blade 12 in the radial direction with respect to the axis O can be adjusted within the range in which the elongated hole extends. Further, this blade 12 is also composed of several blades 1 located at the above-mentioned discharge port 5 portion on the other end side of the hollow shaft 7.
Except for 2, ..., The positions of the pair of brackets 13, 13 in the circumferential direction are displaced so as to be inclined with respect to the axis O of the hollow shaft 7 as shown in FIG. In particular, in this embodiment, the adjacent stirring plates 11,
The bracket 13 located on the other end side between the blades 11 is displaced rearward in the rotation direction T with respect to the bracket 13 located on the one end side, whereby the blades 12 inclined.
Is inclined toward the rear side in the rotation direction T toward the other end side in the axis O direction.

In this embodiment, both ends of the hollow shafts 7, 7 inside the casing 1 are also close to the inside of the end faces of the casing 1 in the radial direction with respect to the axis O of the hollow shaft 7. A plurality of radially extending blades (four blades in this embodiment) in the shape of a rectangular flat plate are connected to the hollow shaft 7,
The same number is provided for each of the seven. These feathers 14 ...
The outer diameter from the axis O is made substantially equal to the outer diameter of the stirring plate 11, and the hollow shafts 7 are arranged at equal intervals in the circumferential direction. The phase with respect to each rotation direction T is shifted by 1/2 (45 ° in this embodiment) of the angle of the adjacent blades 14, 14 with C as a reference, and the rotation of these hollow shafts 7, 7 causes the blades 14 ... It is designed not to interfere with each other. Furthermore, these blades 14 ...
Like the end face 11B of the blade 12 and the stirring plate 11 on the one end side of the hollow shafts 7, 7, the hollow shafts 7 and 7 of the hollow shafts 7 and 7 are directed toward the rear side in the rotation direction T toward the other end side. At the other end side, they are attached so as to be inclined so as to be directed toward the rear side in the rotation direction T toward the other end side.

In the stirrer / heat-transfer device having the above-mentioned structure, the processed material continuously supplied from the supply port 4 to the one end side of the casing 1 is rotated by the rotary drive means 10, and the hollow shafts 7, 7 are rotated. The stirring plate 1 provided on the outer periphery of the
While being stirred by 1, the jacket 6 on the outer periphery of the casing 1, the hollow shafts 7, 7 and the stirring plate 11 ...
It is heated or cooled by the heat transfer by the heat exchange medium P supplied to the inside, and further, the pressure due to the continuous supply of the processed material from the supply port 4, the inclination of the casing 1, and the end surface 11B of the stirring plates 11 ... And the blades 12 are inclined to be sent out to the other end side, pass over the weir plate 3 provided at one end side of the casing 1 and continuously discharged from the discharge port 5. The processed material supplied into the casing 1 is extruded to the other end side by the blades 14 ... Inclined in the same direction as the end faces 11B and the blades 12 ... On the other hand, on the other hand, on the other end side of the casing 1, the blades 14, which are inclined in the opposite direction, and the end faces of the above-mentioned several stirring plates 11, which are parallel to the axes O, O without inclination, are formed. The pressing to the other end side is suppressed by 11B and the blades 12 ...
It is designed to be smoothly discharged from the discharge port 5.

In the stirring heat transfer device having the above structure, the blades 12 are provided on the outer circumference of the hollow shafts 7 so as to be bridged between the stirring plates 11.
2 ... with the rotation of the hollow shafts 7, 7, the other hollow shafts 7
Of the stirring plate 11 ... Can be inserted into and removed from the cutout portion 11A, and the cutout portion 11A can be inserted into and removed from the cutout portion 11A.
Even if the processed material adheres to the inner surface of the hollow shaft 7, the adhered processed material can be scraped out and discharged, and the blades 12 are adjacent to the stirring plates 11 and 11 without interfering with the stirring plate 11 of the other hollow shaft 7. Can be placed between
It is also possible to sweep out and discharge the treated material that remains between the stirring plates 11 and 11 and the inner surface of the casing 1. Therefore, in order to avoid such interference between the blades 12 and the other hollow shafts 7 and the stirring plates 11, the hollow shafts 7 and 7 and the stirring plates 11 ... It is possible to prevent stagnation and residue of the processed material supplied into the inside of the stirring plate. As a result, it is possible to secure a heat transfer area per unit volume and to have a high heat transfer capacity and a stirring plate 1.
While the high stirring effect due to the provision of 1 ... is closely maintained, the processed material can be discharged reliably and promptly at the time of product type switching, and the time required for this product type switching is shortened. In addition, it is possible to minimize mixing of products before and after switching, and it is efficient even when heating and cooling by stirring heat transfer of processed products of various products in the manufacturing process of resins and the like. It is possible to process.

Further, in this embodiment, the blades 12 have a pair of agitating plates 11, 11 adjacent to each other in the direction of the axis O as described above.
The blades 1 and 2 are installed so as to be bridged via the brackets 13 and 13 between them.
2 is attached with both ends thereof being supported by the pair of stirring plates 11, 11. Therefore, according to the present embodiment, it is possible to sufficiently secure the mounting rigidity of the blade 12, even if the processed material adheres strongly to the notch 11A of the stirring plate 11 of the other hollow shaft 7. However, it is possible to reliably scrape and discharge this. Moreover, the blade 12 is bolted to the bracket 13, and the insertion hole of the blade 12 or the bracket 13 through which the bolt is inserted has an axis O of the hollow shaft 7.
In the present embodiment, the blades 12 in the radial direction of the hollow shaft 7 are tightened again by loosening the bolts to make the blades 12 project and retract in the radial direction and then tightening the bolts again. The position of is adjustable. Therefore, the radial position of the blade 12 is brought closer to the inner surface of the casing 1 within a range where it does not interfere with the other hollow shafts 7, and the clearance between the blade 12 and the inner surface of the casing 1 is adjusted to adjust the clearance between the inner surface of the casing 1 and the inner surface of the casing 1. It is possible to minimize the amount of the processed product remaining in the casing, which also promotes more efficient and reliable discharge of the processed product, and by thus reliably discharging the processed product on the inner surface of the casing 1, Since the heat transfer capacity can be improved by the jacket 6 provided on the outer periphery of the casing 1, according to the present embodiment, it is possible to achieve more efficient heating or cooling of the object to be processed.

Further, in the present embodiment, the blades 12 are formed by the hollow shaft 7 except for a part of the casing 1 on the other end side.
Of the hollow shaft 7 is inclined with respect to the axis O of the hollow shaft 7, and the direction of the inclination is toward the rear side of the rotation direction T of the hollow shafts 7 and 7 toward the other end side. With the rotation, the processed product is transferred by receiving a force so that it is pushed toward the other end side by the blades 12 as described above, and this also promotes prompt discharge of the processed product to switch the product type. The time required can be shortened. Moreover, in the present embodiment, among the end faces formed in the stirring plate 11 by the cutout portion 11A that face the circumferential direction, the end face 11B that faces the rotation direction T side also rotates in the rotation direction toward the other end side like the blade 12. Since the blade 14 provided on one end side of the hollow shaft 7 is also inclined to the rear side of T, the processed material can be sent to the other end side more quickly and efficiently. it can. On the other hand, at the other end of the casing 1 where the discharge port 5 for the processed material is provided, the blade 12 and the end surface 11 are provided.
Since B is not inclined and the blade 14 on the other end side is inclined opposite to the one end side, the processed material is strongly pressed against the other end side of the casing 1 and condensed. Therefore, it is possible to smoothly discharge the processed material from the discharge port 5 provided on the side portion thereof.

When the blades 12 are inclined with respect to the axis of the hollow shaft 7 in this way, for example, a spacer for adjusting the angle is interposed between the bracket 13 and the blade 12. Then, the inclination angle of the blade 12 with respect to the axis O may be made adjustable according to the property of the processed material, the processing time in the stirring heat transfer device, and the like. In this case, for example, when the fluidity of the treated material is low and easily accumulated in the casing 1 or when the treatment time is short, the axis O
The inclination of the blade 12 may be increased by increasing the inclination of the blade 12 to the other end side, and conversely, when the fluidity of the processing object is high or the processing time is lengthened, the inclination of the blade 12 is decreased. Or in some cases, it may be tilted in the opposite direction. Further, the inclination of the blades 12 may be gradually or gradually increased or decreased from the one end side to the other end side of the casing 1.

By the way, in the first embodiment, as described above, the blade 12 is laid between the pair of stirring plates 11, 11 adjacent to each other in the direction of the axis O through the bracket 13, so that the outer circumference of the hollow shaft 7 is reduced. However, if it is difficult to provide the blades between the stirring plates that are coaxially adjacent to each other in this way due to the distance between the stirring plates and the position of the notch, etc., refer to FIGS. As shown in the second embodiment of the present invention, blades are directly provided on the outer circumference of the hollow shaft between the stirring plates adjacent to each other in the axial direction, and the hollow shafts are provided in the notches of the stirring plates of other hollow shafts. It may be configured such that it can be inserted and removed with the rotation of.

Here, the second embodiment shows a case where the present invention is applied to a batch type (batch type) stirring heat transfer device, and a casing 22 thereof is provided with a jacket 22 on the outer periphery thereof. It is in the shape of a vertically long rectangular parallelepiped box, on the top of which a supply port 23 for the processed material is provided, while a discharge port 2
4 is provided in the lower part, and after the discharge port 24 is closed, the processed material is housed in the casing 21 and heated or cooled by stirring heat transfer for a predetermined time, and then the discharge port 24
Is released to discharge the processed material. In the casing 21, a pair of hollow shafts 2 is also provided.
5 and 25 have their axes O and O parallel to each other and parallel to each other in the horizontal direction, and are rotatable in the opposite rotational directions T and T at the same number of rotations around the axes O and O by a rotation driving means (not shown). Supported, these hollow shafts 25, 25
A plurality of substantially disk-shaped stirring plates 26 each having a notch 26A formed therein, and hollow shafts 25, 2 in the direction of the axis O, O.
It is arranged so as to be staggered between 5 and
Between each pair of agitating plates 26, 26 adjacent to each other in the axis O direction in each hollow shaft 25, blades 27 are directly provided on the outer periphery of the hollow shaft 25, respectively. The cutout portion 26A of the stirring plate 26 of the hollow shaft 25
It is supposed to be removable.

However, in the present embodiment, the hollow shaft 25
Does not have a double pipe structure as in the first embodiment, but has a configuration in which the heat exchange medium P is supplied from one end side and discharged from the other end side. Also, the stirring plate 2
6, a pair of the above-mentioned notch portions 26A, 26A are symmetrical to each other with respect to the axis O and the axis O of each hollow shaft 25.
The stirring plates 26 that are adjacent to each other in the direction are formed such that their phases are shifted by 90 ° in the circumferential direction, and the axis O is formed on the outer peripheral portion of the end face of the notch 26A facing the rear side in the rotation direction T. Another blade 26B that is inclined with respect to is provided. However, the inclinations of the blades 26B are opposite to each other between the stirring plates 26, 26 at both ends of one hollow shaft. Therefore, in the present embodiment, as the pair of notches 26A and 26A are formed in the one stirring plate 26 in this manner, the stirring plate 2 is formed in the axis O, O direction.
6 also on the outer circumference of the hollow shaft 25 corresponding to
7 and 27 are provided, and these blades 27 and 27 can be inserted into and removed from the notches 26A and 26A as the hollow shafts 25 and 25 rotate. Also in this embodiment, the blade 27 is bolted to the bracket 28 provided on the outer periphery of the hollow shaft 25 so that the position in the radial direction can be adjusted.

In this embodiment, the rotary shaft 29 is rotatably above the hollow shafts 25, 25 in the casing 21 and further about the horizontal axis X parallel to the axes O, O.
Is provided, and a plurality of blades 29A are also provided on the outer periphery of the rotating shaft 29. As described above, the casing 2
It is possible to agitate the upper part of the processed material housed in the inside of the container 1. In addition, the casing 21 of the hollow shafts 25, 25 described above
The blades 30 extending in the radial direction with respect to the axis O along the end faces of the casing 21 at both ends are provided at both ends in the inside of the blade as in the blade 14 of the first embodiment. The blades 30 ... Are not inclined like the blades 14 but have a triangular cross section whose width becomes narrower toward the inside of the casing 21. Further, in the present embodiment, the heating or cooling process is completed with respect to the rotation direction T of the hollow shafts 25, 25 when the processed product is housed in the casing 21 and heated or cooled by stirring heat transfer. The hollow shafts 25, 25 are rotated in opposite directions when the processed product is discharged from the discharge port 24.

Therefore, also in the stirring heat transfer device of the second embodiment having such a structure, the above-mentioned blades 27 ... Since it can be inserted into and removed from the notch 26A of the stirring plate 26 of No. 25, the notch 26 can be secured while maintaining a large heat transfer area per unit capacity and maintaining a high stirring effect.
The processed material adhering to A or the processed material between the stirring plate 26 and the inner surface of the casing 21 is scraped off to prevent its retention, and after the processing is completed, the processed material is promptly discharged to process the processed material of the next type. Can be moved to. Further, in the present embodiment, the blade 27 is attached to the outer periphery of the hollow shaft 25 by the bracket 28.
Since it is provided so as to directly project through the blades, it is relatively free regardless of the distance between the adjacent stirring plates 26, 26 and the position of the notch 26A at which the blade 27 is inserted and removed. It is possible to provide the blades 27. For example, in the stirring plate 11 of the first embodiment shown in FIG. 4, when the pair of cutouts 11A and 11A are provided symmetrically with respect to the axis O as in the present embodiment, the blades are provided. However, in this embodiment, even if the phases of the notches 26A, 26A of the stirring plate 26 are not shifted between the hollow shafts 25, 25, the blades 27 are provided regardless of this. You can

Further, also in this embodiment, these blades 2
The radial position of 7 ... with respect to the axis O can be adjusted. Therefore, the clearance with the inner surface of the casing 21 can be adjusted to effectively prevent retention of the processed material.
In addition, although the blades 27 may be inclined with respect to the axis O also in the present embodiment, the stirring heat transfer device of the present embodiment is a device for processing the processed material in a batch manner as described above, Since it is not necessary to transfer the object in the direction of the axis O of the hollow shaft 25, the hollow shaft 25 is mounted so as to be parallel to the axis O in this embodiment. Further, in the second embodiment and the first embodiment described above, the pair of hollow shafts 7, 7, 25, 25 is arranged in the casings 1, 21, but
More than three hollow shafts may be arranged. In that case, the blades of the hollow shaft sandwiched by a plurality of hollow shafts are provided in the notch portions of the stirring plates of the hollow shafts on both sides. It suffices if it can be inserted and removed.

[0027]

As described above, according to the present invention,
By providing a blade on the outer circumference of the hollow shaft and allowing it to be inserted into and removed from the cutout portion of the stirring plate of another adjacent hollow shaft along with the rotation of the hollow shaft, the object to be treated or the stirring plate and the casing attached to the cutout portion. It is possible to scrape out the treated material that stays between the two, and to reduce the distance between the hollow shafts and the stirring plates to secure the heat transfer area per unit volume and the stirring effect, It is possible to promote reliable and prompt discharge, and to improve the efficiency of heating / cooling of the processed material. Further, by installing this blade between a pair of adjoining stirring plates, it is possible to improve the mounting rigidity of the stirring plate. On the other hand, if the blade is directly projected to the outer periphery of the hollow shaft, The vanes can be provided regardless of the intervals or the positions of the cutouts. Furthermore, if the position of the blade in the radial direction of the hollow shaft can be adjusted, it is possible to more reliably discharge the processed material remaining between the blade and the casing, and to improve the heat transfer capacity. By inclining this blade with respect to the axis of the hollow shaft, the processed product can be transferred in the axial direction of the hollow shaft, and particularly when the processed product is continuously processed, its prompt discharge can be promoted. In this case, if the inclination angle of the blade can be adjusted, the transfer speed of the processed material can be adjusted according to the property and the processing time.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of the present invention.

FIG. 2 is a plan sectional view of the embodiment shown in FIG.

FIG. 3 is a ZZ sectional view in FIG.

In the embodiment shown in FIG. 1, the blades 12 of one hollow shaft 7 are provided with the notches 1 of the stirring plate 11 of the other hollow shaft 7.
It is a figure which shows the state inserted in 1A.

FIG. 5 is a side sectional view showing a second embodiment of the present invention.

6 is a cross-sectional plan view of the embodiment shown in FIG.

7 is a ZZ cross-sectional view in FIG.

8 is a view showing a state in which the blades 27 of one hollow shaft 25 are inserted into the notches 26A of the stirring plate 26 of the other hollow shaft 25 in the embodiment shown in FIG.

[Explanation of symbols]

1,21 casing 6,22 jacket 7,25 hollow shaft 11,26 Stirrer 11A, 26A Notch 12,27 feathers 13,28 bracket O axis of hollow shaft 7,25 T Direction of rotation of hollow shafts 7 and 25 P heat exchange medium

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F26B 25/04 F26B 25/04 F term (reference) 3L113 AA06 AA07 AB05 AC05 AC16 AC45 AC46 AC58 AC62 AC63 AC66 BA39 CB29 CB33 CB34 DA04 DA07 DA10 4G037 CA05 EA03 4G078 AA07 AB20 BA01 BA07 DA01 DA28 DC08 EA03

Claims (6)

[Claims] 1. A plurality of hollow shafts are rotatably arranged around their axes and laid horizontally with their axes parallel to each other in a casing having a jacket on the outer periphery, and these hollow shafts are opened in the circumferential direction. A plurality of agitating plates having cutouts are spaced in the axial direction for each hollow shaft, and between adjacent hollow shafts, the other is between the agitating plates of one hollow shaft in the axial direction. The stirring shaft of the hollow shaft is provided so that the treated material supplied into the casing is stirred by the stirring plate of the rotating hollow shaft while the heat exchange medium is supplied into the hollow shaft. A stirring heat transfer device for heating or cooling by transferring heat via the stirring plate, wherein the outer periphery of the hollow shaft is inside the notch of the stirring plate of another hollow shaft adjacent to the hollow shaft as the hollow shaft rotates. A blade that can be inserted into and removed from An agitating heat transfer device is provided. 2. The stirring heat transfer device according to claim 1, wherein the blade is provided between a pair of stirring plates adjacent to each other in the axial direction of the hollow shaft. 3. The stirring heat transfer device according to claim 1, wherein the blade is provided so as to protrude from an outer periphery of the hollow shaft. 4. The position of the blade in the radial direction of the hollow shaft is adjustable.
The stirring heat transfer device according to claim 3. 5. The stirring heat transfer device according to claim 1, wherein the blades are provided so as to be inclined with respect to the axis of the hollow shaft. 6. The stirring heat transfer device according to claim 5, wherein the inclination angle of the blades is adjustable.