JP2003222471A - Stirring heat transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the abrasion of a bottom part of a casing by preventing treated matter or a dried product from being pressed to the bottom part at the other end (rear end) of the casing after stirring, heating and transferring the treated matter such as granulated matters supplied into the casing. <P>SOLUTION: Four approximately cylindrical hollow shafts 8a, 8b, 8c and 8d are arranged in parallel in the casing 1 rotatably along the longitudinal direction of the casing 1. Both ends of the hollow shafts 8a-8d are respectively projected from one end face 1a and the other end face 1b of the casing 1 in a sealed condition, and rotatably supported by bearing parts 9a, 9b. The desired number of discharge ports 7 are formed on the casing 1, or a part near a lower part and a side part of a jacket 2 or a case body 3 at the other end (rear end) of the hollow shafts 8a-8d, and a plurality of hollow stirring plates 13, 13, 13 are mounted approximately vertically to a longitudinal axis of the hollow shafts without being inclined, on the hollow shafts 8a-8d near the discharge ports 7. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention separates a plurality of hollow shafts in a casing so as to be parallel and rotatably, and arranges a plurality of hollow stirring plates on each hollow shaft in an inclined manner.
By providing a hollow stirring plate arranged in a substantially vertical direction in a hollow shaft portion having a width length substantially the same as or near the discharge port, and a relatively large scraping blade provided in the hollow stirring plate,
The present invention relates to a stirring heat transfer device that performs heat exchange processing and smooth discharge while stirring an object to be processed supplied into the casing.

[0002]

2. Description of the Related Art Conventionally, as this type of stirring heat transfer device,
For example, a plurality of rotating shafts are provided in parallel in a substantially horizontal casing having a jacket structure on the outer periphery and stirring plates are provided on the rotating shafts. As a hollow, a heat exchange medium is passed through the inside of the jacket and the jacket to heat or cool the object to be treated such as powdery particles or highly viscous sludge supplied into the stirring heat transfer device while stirring. The device is known. Further, in the stirring heat transfer device, in order to increase the heat transfer area per unit capacity and to improve the stirring effect, the rotating shaft is made into two shafts or multiple shafts, and each stirring plate on one shaft is used. It has already been adopted a configuration in which the two are partially spaced between adjacent agitating plates on the other shaft.

By the way, as shown in the prior art, the stirring plates are arranged in a line from the front end to the rear end of the rotary shaft inclining with respect to a plane perpendicular to the longitudinal axis of the rotary shaft. there were. This configuration is because it is necessary to heat or cool the object to be processed supplied from the supply port of the stirring heat transfer device while effectively stirring it.

Some conventional stirring plates have a structure in which a small scraping blade is arranged at the trailing edge. This configuration is for promoting the stirring operation of the object to be processed by the stirring plate by scraping up the object to be processed supplied from the supply port of the stirring heat transfer device from between the stirring plates with the small scraping blade. Is.

[0005]

Since the stirring heat transfer device in the prior art has the above structure, the following problems exist. According to the conventional technique, the object to be processed supplied from the supply port of the stirring heat transfer device is transferred in the device while being heated or cooled while being stirred, and taken out as a processed product or a dried product from the discharge port. However, since all of the stirring plates are configured to be inclined with respect to the plane perpendicular to the longitudinal axis of the rotating shaft, the product or dried product is strongly pressed against the bottom of the casing of the stirring heat transfer device, It becomes difficult to discharge the processed dry products from the discharge port, and the pressing operation of the dry products is strongly repeated,
There has been a problem that the bottom of the casing is worn to cause damage such as cracks and perforations, and induces a leakage phenomenon of a heat exchange medium such as steam, hot water or cold water delivered to the jacket.

[0006]

SUMMARY OF THE INVENTION The present invention has been made under the above background, and an object thereof is to provide a casing with an object to be treated such as powder or granules or sludge supplied from a supply port. The purpose is to avoid damage to the bottom of the casing without pressing it against the bottom and to take it out smoothly from the outlet.

The present invention employs the following configurations and means in order to achieve such an object. According to the invention of claim 1, a substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts rotatably and parallelly arranged in the longitudinal direction of the casing, and a plurality of hollow shafts on the hollow shaft. Agitation provided with a plurality of hollow stirring plates that are inclined and spaced from each other on one and the other hollow shaft, and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate. A heat transfer device, wherein the hollow stirring plate in at least one hollow shaft portion near the discharge port is arranged substantially perpendicular to the hollow shaft length. It is a device. Therefore, in the stirring heat transfer device configured as described above, the hollow stirring plate in at least one hollow shaft portion in the vicinity of the discharge port is arranged substantially perpendicular to the hollow shaft length. Therefore, the object to be treated supplied from the supply port is stirred, heated or cooled and transferred from the front to the rear of the casing by the inclined hollow stirring plate, and the vertically arranged hollow stirring plate. It is temporarily stopped on the vertical plane and is taken out from the outlet. For this reason, the object to be treated is not pressed against the bottom of the casing, whereby the bottom of the casing is not damaged by cracks, holes, or the like, and the life of the casing can be extended.

According to the second aspect of the present invention, the hollow agitating plate in the hollow shaft axial length portion substantially the same as the horizontal width of the discharge port is arranged substantially perpendicular to the hollow shaft length. The stirring heat transfer device according to claim 1, wherein In the stirring heat transfer device configured as described above, since the horizontal width of the discharge port, that is, the hollow stirring plate of the hollow shaft axial length portion adapted to the opening is arranged substantially vertically, The object to be treated can be effectively taken out of the stirring heat transfer device without damaging the bottom part of the casing, and only the changed part is left while the basic design of the hollow shaft or hollow stirring plate of the stirring heat transfer device is left. Can be designed and implemented easily, and replacement of parts such as the hollow stirring plate related to the changed part is also facilitated.

According to the third aspect of the present invention, the stirring blade according to the first or second aspect is characterized in that at least one tip of the substantially vertically arranged hollow stirring plate is provided with a scraping blade. It is a thermal device. In the stirring heat transfer device configured as described above, the scraping blade provided at the tip of the hollow stirring plate scrapes out the object to be treated that has accumulated at the bottom of the casing in the vicinity of the discharge port. It has the effect that it can be taken out from the outlet.

According to a fourth aspect of the present invention, in the agitating heat transfer device according to the third aspect, the scraping blades form blades protruding in the rotational direction of the hollow agitating plate. is there. In the stirring heat transfer device configured as described above, the scraping blade has blades protruding in the rotation direction of the hollow stirring plate, and is provided between the inner wall of the casing and the hollow stirring plate and the exhaust This has the effect of being able to completely scrape off the object to be treated that has solidified and solidified in the casing near the outlet.

According to a fifth aspect of the present invention, the agitating heat transfer device according to the third or fourth aspect is characterized in that the scraping blades are formed so as to be wide in a direction between adjacent hollow stirring plates. Is. In the stirrer heat transfer device configured as described above, the scraping blades are relatively large and wide between the hollow stirring plates, and the scraping area of the scraping blades is large, and Completely scrapes off the retained material, eliminating the need to clean the casing when changing the type of material to be treated, and the effect that there is no fear of mixing different types of material. Play.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a stirring heat transfer device according to the present invention will be described in detail with reference to the accompanying drawings.

First Embodiment FIGS. 1 to 4 show a first embodiment of an agitating heat transfer device according to the present invention, which will be described below.

In the first embodiment, A is a stirring heat transfer device, which is provided with an upper cover 1c and a casing 1, and a plurality of jackets 2 such as dimple plate jackets are provided on the outer periphery of the casing 1. Prepared in the longitudinal direction. The outer circumference of the jacket 2 constitutes a case body 3,
The case body 3 is provided with the heat exchange medium inlet 4a on the side surface of the jacket so that the heat exchange medium P shown in FIGS. 1 and 3 can flow. Then, the heat exchange medium P is discharged to the heat exchange medium outlet 4b from the side surface of the jacket. Further, as shown in FIG. 3, the bottom surface side portions of the casing 1, the jacket 2 and the case body 3 are formed in a wave shape so as to surround four stirring plates 13 described later. The casing 1 is formed in a box shape having a substantially rectangular parallelepiped outer shape, and is arranged in a substantially horizontal direction such that one end (front end) side in the longitudinal direction inclines so as to be slightly higher than the other end (rear end) side. There is. A heat insulating material or the like is interposed between the jacket 2 and the case body 3 to have a function of minimizing the heat radiation of the stirring heat transfer device.

As shown in FIG. 1, at one upper part of the casing 1, there is provided a supply port 5 capable of continuously supplying an object to be treated such as powdery particles or sludge substances. One or a plurality of discharge ports 7 capable of continuously discharging the object to be processed are provided on the other lower portion or side portion of the casing 1 through a weir plate, a stand damper (not shown) and the like. . When the casing 1 is arranged so as to be inclined so that one end (front end) side is slightly higher than the other end (rear end) side, the supply port 5
Is disposed at the upper center of one end (front end) side of the casing 1, and the discharge port 7 is disposed at the lower end of the casing 1 on the other end (rear end) side or near the side portion. It is desirable because it is transferred. As shown in FIGS. 1 and 3, the discharge port 7 has a weir 7a which is operated at its opening 6 by an automatic lifting device 7b capable of remote automatic control.
Is provided and the discharge amount of the object to be treated or the product is adjusted by controlling this. The weir 7a can also be manually moved up and down by rotating the handle 7c. 7 in the figure
Reference numeral d denotes an openable / closable opening / closing door for taking out the object to be processed or the product to the outside.

As shown in FIG. 2, in the casing 1, for example, four hollow shafts 8 having the same diameter and the same length and having a substantially cylindrical outer shape are used.
The a, 8b, 8c, and 8d are rotatably spaced apart in parallel along the longitudinal direction of the casing 1, that is, horizontally arranged in parallel in the horizontal direction. The hollow shaft 8
Both end portions of a to 8d are protruded in a sealed state from one end surface 1a and the other end surface 1b of the casing 1, and are rotatably supported by bearing portions 9a and 9b. A gear mechanism 10 and a motor 11 that mesh with each other are attached to one ends (front ends) of the hollow shafts 8a to 8d, and the gear mechanism 10, the motor 11 and the like constitute the rotation driving means 12 of the hollow shafts 8a to 8d. is doing. By the rotation driving means 12, the hollow shaft 8a ...
The hollow shafts 8a and 8b, which rotate at the same rotational speed, are adjacent to each other in the opposite rotational directions T1 and T2 as shown in FIG.
c and 8d rotate in opposite rotation directions T3 and T4, respectively.

On the outer circumference of the hollow shafts 8a to 8d, there is provided a series of hollow stirring plates 13 each having a substantially disk-shaped outer shape as shown in FIGS. As shown in FIG. 2, the hollow stirring plates 13 are inclined and spaced from each other, and the hollow shafts 8a and 8b are adjacent to each other in the longitudinal axis direction of one hollow shaft 8a. Hollow stirring plate 13,
The hollow agitating plates 13 of the other hollow shaft 8b are arranged in a staggered manner in the longitudinal axis direction so that the other stirring shaft 13 is located at the center. Further, the hollow stirring plate 13 has a rectangular cross-sectional shape as shown in the drawing, and also has a triangular or chevron shape or other shapes such as a wedge shape, a rhombus shape, the thickness of which gradually decreases toward the outer peripheral side. It may have various shapes such as an inverted triangle. The stirring plate 13 has a hollow inside, and the hollow shaft 8 is attached to the hollow stirring plate 13.
The heat exchange medium P supplied from the hollow portions 8e of a to 8d is distributed. Also, each stirring plate 1
As shown in FIG. 3, reference numerals 3 and 13 denote a pair of notches 13A and 13B that are open in the circumferential direction at an angle of, for example, 30 °.
Agitating plates 13 and 1 which are symmetrical to each other with respect to the longitudinal axis and are adjacent to each other in the longitudinal direction of the hollow shafts 8a to 8d.
The three blades are formed so that their phases are shifted by 90 °, and a small blade 13C is provided on the outer peripheral portion of the end face of the cutout portion 13A facing the rotation direction T1 to T4 side.

Both ends of the stirring heat transfer device A according to the present invention have the structure shown in FIGS. 4 (a) and 4 (b). FIG. 4 (a) shows the other end (rear end) side of the hollow shaft 8b. It is the side view which expanded the principal part. Further, FIG. 4B is an enlarged side view of a main part of the hollow shaft 8b on one end (front end) side. The other end (rear end) side of the hollow shaft 8b is connected to a heat exchange medium introduction pipe 14 to the hollow shaft and a heat exchange medium discharge pipe 15 from the hollow shaft via a bearing portion 9b. And the stirring plate 1
Since 3 is hollow, as shown in FIG. 4 (b), the heat exchange medium P is provided between the hollow stirring plate 13 and the hollow shaft 8 b by the introduction / extraction pipes 16 and 17 equipped with nozzles. It is connected so that it can flow through. Thus, the heat exchange medium P such as steam, hot water or cold water introduced from the heat exchange medium introduction pipe 14 into the hollow shaft 8b is introduced into the hollow stirring plate 13 and further introduced. It is discharged to the hollow shaft 8b via the outlet pipes 16 and 17, and is discharged via the heat exchange medium outlet pipe 15 from the hollow shaft. By performing the heat exchange action in this manner, the object to be processed supplied from the supply port 5 is agitated and subjected to heat transfer heat treatment.

In FIG. 4, 18 and 19 are gland boxes for sealing the inside of the casing 1, and 9a and 9b are the bearing portions described above. 20 is a rotary joint,
The heat exchange medium is introduced and led out into the rotating hollow shaft 8b without leaking. Reference numeral 21a denotes a drive-side shaft, which is connected to the rotary drive means 12 and is connected to one end (front end) of the hollow shaft 8b, and is rotated by the operation of the rotary drive means 12. 21b is a driven shaft,
It is connected to the other end (rear end) of the hollow shaft 8b. The structure of the hollow shaft 8b and one end (front end) and the other end (rear end) of the hollow shaft 8b is the same for the other three hollow shafts 8a, 8c, 8d, and a description thereof will be omitted.

An appropriate number of outlets 7 are installed at the lower end and side parts of the casing 1, jacket 2 or case body 3 at the other ends (rear ends) of the hollow shafts 8a to 8d. In the hollow shafts 8a to 8d near the discharge port 7, as shown in FIGS. 2 and 4 (a), a plurality of hollow stirring plates 13, 13, 13 are tilted. Without arranging, they are arranged in a direction substantially perpendicular to the longitudinal axis of the hollow shaft. Moreover, the front and back surfaces of the stirring plates 13, 13, 13 are formed in a flat shape.

Next, the positional relationship between the stirring plate 13 and the discharge port 7 will be described in detail with reference to FIG. The discharge port 7 of the agitation heat transfer device A shown in FIG. 2 is a left and right side part of the other end (rear end) of the agitation heat transfer device A, and is an example in which two are arranged in the case body 3 or the like. is there. The discharge port 7 is positioned adjacent to the hollow shafts 8a and 8d, and the hollow shaft 8a
Explaining in the part d, the three hollow stirring plates 13 and 13 in the axial length portion of the hollow shaft 8d having the horizontal width B corresponding to the width of the opening 6 of the discharge port 7 and the axial length C substantially the same. , 13 are arranged substantially perpendicular to the longitudinal axis, that is, the hollow axis length. In addition, in the present embodiment, the hollow shaft 8 is used as described above.
In the hollow stirring plate 13 of b and 8c, an example is shown in which it is arranged substantially perpendicular to the hollow shaft length.

[0021]

Embodiment 2 of the present invention is a stirring heat transfer device according to a second embodiment of the present invention, which has a relatively large tip end of a stirring plate arranged substantially perpendicular to the axis of the hollow shaft shown in the first embodiment. This is a technique for installing a scraping blade. The relatively large scraping blade 22 is the hollow shaft 8a in FIG.
8d, and in FIG. 4 (a), a hollow shaft 8b. The relatively large scraping blade 22 has a width in the horizontal or vertical direction as will be described later, and is characterized in that the scraping area of the object to be processed or the dried product is increased. A hollow stirring plate 13 arranged in the longitudinal axis direction of the bearing portion of the hollow shafts 8a to 8d in the vicinity of the discharge port 7, that is, in a direction substantially perpendicular to the hollow shaft length, and its effect can be exhibited. Is. That is, after the objects to be treated, such as powder particles and sludge, which are supplied from the supply port 5, are agitated and heat-transferred and transferred to the other end (rear end) of the agitation heat transfer device A, they are arranged vertically The flat front surface or the like of the stirring plate 13 makes it possible to scrape and discharge the object to be treated, the cake, the product, or the dried product accumulated in the vicinity of the discharge port 7 all at once.

The scraping blades 22 are not limited to all the hollow stirring plates 13 near the discharge port 7,
It is not necessary to provide it on 13, 13 and may be provided on at least one of the hollow stirring plates 13, 13, 13.
Further, the scraping blades 22 are so wide that they do not come into contact with the hollow stirring plates 13, 13 on the hollow shafts 8c adjacent to each other in the direction between the adjacent stirring plates, that is, the hollow shafts 8a or 8d.
The blade 22 formed to be wide in the longitudinal axis direction of the
Are configured. Further, such that the scraping blades 22 project in the rotation direction of the hollow stirring plate 13, for example,
Scraping out the object to be treated which is solidified firmly on the inner wall of the casing 1 and between the stirring plates or on the front surface of the hollow stirring plate 13 arranged in a substantially vertical direction and provided with a blade-shaped body as shown in FIG. Can be configured.

Next, the operation of Embodiments 1 and 2 of the stirring heat transfer device according to the present invention will be described.

The object to be treated, such as powder or granules or sludge, supplied from the supply port 5 is driven by the drive / rotation means 12 by, for example, switching on the control panel or the like of the stirring heat transfer device A which is separately installed. The hollow shafts 8a to 8d, for example, 4 to 15 (r
pm) rotation speed. Then, the heat exchange medium P such as steam, hot water, or cold water is introduced from the heat exchange medium introduction pipe 14 into the hollow shaft into the hollow shape of the stirring plate 13 through the hollow portions 8e of the hollow shafts 8a to 8d. The object to be processed supplied into the casing 1 is the hollow shaft 8a.
The stirring is performed by the hollow stirring plates 13, 13 ... Which are arranged in series inclining with respect to the longitudinal axis direction of 8d.
On the other hand, the heat exchange medium P is circulated from the heat exchange medium inlet 4a to the side surface of the jacket, which is piped in the case body 3, flows into the through hole or the recess of the jacket 2, and the hollow shaft 8a through the casing 1 described above. Together with the operation of the heat exchange medium P introduced into the hollow portion 8e of 8d and the hollow shape of the stirring plate 13, the object to be treated inside the casing 1 is heated or transferred.

The object to be processed is transferred from one end (front end) to the other end (rear end) of the casing 1 while being heat-exchanged by a series of inclined hollow stirring plates 13, 13. . Moreover, since the plurality of hollow stirring plates 13, 13, 13 near the discharge port 7 are arranged in the longitudinal axis direction of the hollow shafts 8a, 8d, etc., that is, in the direction substantially perpendicular to the hollow shaft length. The horizontal surface of the front surface or the back surface has a function as a stopper when the object to be processed is transferred to the other end (rear end) of the casing 1, and the object to be processed is the hollow stirring plate. It is not pushed further backward by 13, 13, 13 and is discharged from the discharge port 7 as a processed object or product, a dried product, or a cake.

As described above, as long as the switch-on operation of the stirring heat transfer device A is continued by, for example, a separately installed control panel, the object to be treated supplied from the supply port 5 is automatically and appropriately stirred and heated. Or heat transfer and transfer. Then, by opening the opening / closing door 7d provided in the discharge port 7 as a product, a dried product, a cake or the like from the opening 6 installed at the other end (rear end) of the casing 1, it can be taken out freely.
Further, the discharge amount of the object to be processed can be controlled by adjusting the opening degree of the opening 6 of the weir 7a by the operation of the automatic elevating device 7b. Incidentally, the weir 7a can be manually moved up and down.

Next, referring to FIG. 5 and FIG. 6, the hollow stirring placed in the direction of the longitudinal axis of the hollow shaft arranged in the vicinity of the discharge port 7 of the stirring heat transfer device A, that is, substantially perpendicular to the length of the hollow shaft. The structure and operation of the second embodiment according to the present invention in which a relatively large scraping blade 22 is provided at the tip of the plate 13 will be described.

FIG. 5 shows an example of a structure in which the scraping blade 22 is welded and fixed to the tip of the hollow stirring plate 13.
It is characterized in that overhang portions 22a and 22b are formed on the left and right sides, and left and right outer edge portions 22c and 22d that extend in the up-down direction are formed along the flat surface or the back surface of the hollow stirring plate 13. There is. With such a configuration, when the hollow shaft 8d rotates in the direction of arrow E, the scraping blade 22 provided on the hollow stirring plate 13 of the hollow shaft 8d that rotates in the direction of arrow E rotates the scraping blade 22a. The raising blades 22 are scraped and inserted between the hollow stirring plates 13, 13 of the hollow shaft 8c in the directions of the arrow F that are opposite to each other, which are indicated by imaginary lines. Thus, the scraping blade 22 is an object to be treated which is interposed between the hollow stirring plates 13 and 13, especially on the hollow shaft 8c or between the hollow stirring plates 13 and 13, or hollow stirring. It is possible to scrape a solidified object to be treated, a product, a dried product, a cake or the like between the plate 13 and the casing 1 and scrape it out to the discharge port 7. Moreover, the hollow stirring plates 13, 13, 13 with the scraping blades 22 are provided.
Exists in the vicinity of the discharge port 7 or at a position that matches the width of the opening 6 of the discharge port 7, so that it can be discharged to the discharge port 7 appropriately and efficiently with a small amount of rotational energy from the hollow shaft 8d. Becomes

Next, as shown in FIG. 6, the scraping blades 22 are blades 2 projecting in the direction of arrow E of the hollow shaft 8d.
2e may be formed.
According to the shape, the blades 22e bite into the solidified object to be treated or cake that is interposed and stays between the hollow agitating plates 13 of the hollow shaft 8c shown by the phantom line, and immediately The object to be treated, the cake or the like is detached from the hollow stirring plates 13 or 13 or the casing 1 or the like, and the cake or the like that remains is completely removed with very little rotational energy.
It is possible to discharge from inside to the discharge port 7. Furthermore, the wing 22
By forming the tip of e in the shape of a hook having an acute angle as shown in FIG. 6, the effect is further clarified.
The other configuration and the like are substantially the same as those in FIG.

[0030]

Since the stirring heat transfer device according to the present invention has the above-described structure and operation, it has the following effects.

According to the first aspect of the present invention, a substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts rotatably arranged in parallel in the longitudinal direction of the casing, and the hollow shafts. A plurality of hollow stirring plates that are inclined and spaced from each other on one and the other hollow shafts on the shaft, and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate. An agitating heat transfer device provided, wherein the hollow agitating plate in at least one hollow shaft portion in the vicinity of the discharge port is arranged substantially perpendicular to the hollow shaft length. A stirring heat transfer device is provided. In the stirring heat transfer device configured as described above, since the hollow stirring plate in at least one hollow shaft portion near the discharge port is arranged substantially perpendicular to the hollow shaft length, , The object to be treated supplied from the supply port is stirred, heated or cooled to be transferred from the front of the casing to the rear of the inclined hollow stirring plate, and the vertically arranged vertical stirring plate It is temporarily stopped on a flat surface and taken out from the outlet. Therefore, the object to be treated is not pressed against the bottom portion of the casing, and thus the bottom portion of the casing is not damaged by cracks, perforations, etc., and the life of the casing can be extended.

According to the second aspect of the present invention, the hollow agitating plate is disposed substantially perpendicular to the hollow shaft length in the hollow shaft shaft length portion substantially the same as the horizontal width of the discharge port. The stirring heat transfer device according to claim 1 is provided. In the stirring heat transfer device configured as described above, since the horizontal width of the discharge port, that is, the hollow stirring plate of the hollow shaft axial length portion adapted to the opening is arranged substantially vertically, While effectively removing the object to be treated from the stirring heat transfer device without damaging the bottom of the casing,
It is possible to design only the changed part while keeping the basic design of the hollow shaft and the hollow stirring plate of the stirring heat transfer device, and it is easy to implement, and the hollow stirring plate according to the changed part. There is an effect that replacement of parts such as the above becomes easy.

According to a third aspect of the present invention, the stirring blade according to the first or second aspect is characterized in that at least one tip of the substantially vertically arranged hollow stirring plate is provided with a scraping blade. A thermal device is provided. In the stirring heat transfer device configured as described above, the scraping blade provided at the tip of the hollow stirring plate scrapes out the object to be treated that has accumulated at the bottom of the casing in the vicinity of the discharge port. There is an effect that it can be taken out from the outlet.

According to a fourth aspect of the present invention, the agitating heat transfer device according to the third aspect is characterized in that the scraping blades form blades projecting in a rotational direction of a hollow stirring plate. provide. In the stirring heat transfer device configured as described above, the scraping blades have blades protruding in the rotation direction of the hollow stirring plate, and are provided between the inner wall of the casing and the hollow stirring plate and between There is an effect that it is possible to completely scrape off the object to be treated which is solidified and solidified in the casing in the vicinity of the outlet.

According to a fifth aspect of the present invention, the agitating heat transfer device according to the third or fourth aspect is characterized in that the scraping blades are formed wide in a direction between adjacent hollow stirring plates. I will provide a. In the stirring heat transfer device configured as described above, the scraping blades are relatively large and wide between the hollow stirring plates, and the scraping area of the scraping blade is large, and Completely scrape off the accumulated processing objects, eliminating the need to clean the casing when changing the type of processing objects, and the effect that there is no fear of mixing different types of processing objects. is there.

[Brief description of drawings]

FIG. 1 is a side view showing a general outline of a stirring heat transfer device according to the present invention with a main part cut away.

FIG. 2 shows a stirring heat transfer device according to the present invention, and is a plan view showing an internal structure of a casing.

3 shows a stirring heat transfer device according to the present invention, and is a cross-sectional view taken along line DD in FIG.

FIG. 4 is a cross-sectional view of main parts of both ends of the stirring heat transfer device according to the present invention, in which (a) is an enlarged cross-sectional view of main parts of the other end (rear end) of the hollow shaft in FIG. 2; 2B is an enlarged cross-sectional view of the main part of one end (front end) of the hollow shaft in FIG.

FIG. 5 is an enlarged perspective view showing a structure of a scraping blade provided on a stirring plate arranged in a hollow shaft portion near a discharge port in a stirring heat transfer device according to the present invention.

FIG. 6 is an enlarged perspective view showing another modification of the scraping blade provided on the stirring plate arranged in the hollow shaft portion near the discharge port in the stirring heat transfer device according to the present invention.

[Explanation of symbols]

A Stirring heat transfer device B Horizontal width length corresponding to the opening width of the discharge port C Axial length substantially the same as B above E Rotating direction of hollow shaft F Reverse rotation direction of adjacent hollow shaft P Heat exchange medium T1 to T4 Hollow shaft Rotation direction 1 Casing 1a One end surface 1b of casing One end surface 1c of casing Upper cover 2 of casing 2 Jacket 3 Case body 4a Heat exchange medium inlet 4b to jacket side 4 Heat exchange medium outlet 5 from jacket side 5 Supply port 6 Discharge port opening Part 7 Discharge port 7a Weir 7b Automatic lifting device 7c Handle 7d Opening / closing doors 8a-8d Hollow shafts 9a, 9b Bearing part 10 Gear mechanism 11 Motor 12 Rotational drive means 13 Hollow stirring plate 13A, 13B Notch part 13C of stirring plate Stirring Small blades provided on the plate 14 Heat exchange medium introduction pipe 15 to the hollow shaft Heat exchange medium discharge pipes 16 and 17 from the hollow shaft Introduction and discharge pipes 18 and 19 Land box 20 Rotary joint 21a Drive-side shaft 21b Driven-side shaft 22 Relatively large scraping blade 22a Scraping blade left-side protrusion 22b Right-side protruding portion 22c Left-side outer edge 22d of scraping blade Right outer edge 22e of blade of scraping blade

Claims (5)

[Claims] 1. A substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts rotatably arranged in parallel in the longitudinal direction of the casing, and one and the other of the hollow shafts. A stirring heat transfer device comprising: a plurality of hollow stirring plates that are inclined and spaced from each other on a hollow shaft; and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate. The stirring heat transfer device is characterized in that the hollow stirring plate in at least one hollow shaft portion near the discharge port is arranged substantially perpendicular to the length of the hollow shaft. 2. The hollow stirring plate in a hollow shaft axial length portion substantially the same as the horizontal width of the discharge port is arranged substantially perpendicular to the hollow shaft length. 1. The stirring heat transfer device according to 1. 3. The stirring heat transfer device according to claim 1, wherein at least one tip of said hollow stirring plate arranged substantially vertically is provided with a scraping blade. 4. The scraping blades have blades projecting in the rotational direction of a hollow stirring plate.
The stirring heat transfer device as described. 5. The stirring heat transfer device according to claim 3, wherein the scraping blades are formed so as to be wide in a direction between adjacent hollow stirring plates.