KR20030017288A - Apparatus for dry treatment - Google Patents

Abstract

PURPOSE: A drying device is provided to reduce drying hours, and to heat dried materials in a decompression container quickly by eliminating moisture from the dried material promptly with decompressing the decompression container. CONSTITUTION: A drying device is composed of a decompression container communicated with a vacuum pump(7A) by a decompression unit; heat transfer members(23) installed perpendicularly to the decompression container and rotated; a boiler(66) heating the heat transfer member; and an agitator(40) placed between the heat transfer members to agitate dried materials in the decompression container. The decompression container is divided into an outer container(3) and an inner container(4), and a heat medium path(12) is formed between inner and outer containers to supply steam from the boiler. The agitator is attached to the decompression container, and composed of outer and side scrapers(41,42,43) sliding. An agitating rod(45) is fixed to the outer scraper of the agitator, and rotated between heat transfer members.

Description

Drying Equipment {APPARATUS FOR DRY TREATMENT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying treatment apparatus for drying a waste such as chemicals and foods, food waste and mud by heating under reduced pressure.

Decompression heating is used as a method of reducing waste, and for example, when untreated raw materials are introduced into the vacuum processing apparatus of Japanese Utility Model Laid-open No. Hei 5-32486 while a rotating comb stirrer is rotated in a stirring tank, Due to the interaction between the comb teeth of the comb stirrer and the comb teeth of the fixed comb stirrer, the raw materials are agitated while being crushed, so that a high efficiency stirring effect can be obtained and there is no fear of forming a large number of large spheres. At the same time, by the operation of the hot water boiler and the hot water pump, the hot water circulates through the pipe to the bottom heat medium tank and the circumferential heat medium tank and through the pipe to the ceiling heat medium tank. In this way, on the other hand, the untreated raw material put into the stirring tank has a high stirring effect due to the stirring effect as described above, and in addition to the heating of the heating medium by the bottom heating medium tank and the ceiling heating medium tank, The effects of the heating of the heat medium by the side heat medium tank are combined with each other, and evaporation and drying are rapidly performed under reduced pressure in the stirring tank by the operation of the vacuum pump, and discharged from the discharge port. On the other hand, it is described that steam gas from the raw material in the stirring tank is sucked into the heat exchanger by the operation of the vacuum pump and condensed by heat exchange with the cooling water.

In the vacuum processing apparatus, since the hot water circulates through the bottom heat medium tank, the peripheral heat medium tank, and the ceiling heat medium tank through the pipe, internal raw materials can be heated from the surroundings of the stirring tank. However, even in the case of applying heat in the vicinity of the agitation tank and decompressing at the same time, in order to make waste having high moisture content such as food waste at a predetermined level or less, for example, water content of 10% or less, a conventional time is 5 hours or more. did. When the food waste is dried, the water on the outer circumferential side evaporates first, and the portion in which the water on the outer circumferential side is drained becomes a heat insulating layer, and the internal moisture hardly evaporates. Even if heat was supplied and stirred, the amount of heat for evaporating the water inside the food waste could not be efficiently supplied. For this reason, for example, in order to treat food waste of about 1 ton at a time, a large amount of heat is required, and there is a problem that the apparatus is also enlarged.

In addition, in the vacuum processing apparatus as described above, food waste is easily attached to the inner surfaces of the heated bottom heat medium tank and the circumferential side heat medium tank, and thus, Teflon coating is attempted on the inner surface, but it is not obtained a sufficient effect. It is a present situation, and when the dried food waste is attached, there is a problem of impairing thermal efficiency. On the other hand, if the food waste is attached to the inner surface in this way is not preferable, simply by stirring, it can not efficiently receive heat from the heated inner surface.

Therefore, an object of the present invention is to provide a drying treatment apparatus which is excellent in heating efficiency and which can be dried in a relatively short time.

A drying treatment apparatus according to claim 1 of the present invention includes a pressure reducing container connected to a pressure reducing means, a rotatable heat transfer member arranged in a direction perpendicular to an axial direction of the pressure reduction container, heating means for heating the heat transfer member, Located between the heat transfer member is provided with a stirring means for stirring the dry matter in the reduced pressure vessel.

Thereby, after supplying the to-be-dried product to a pressure reduction container, a pressure reduction container is sealed, a pressure reduction means is operated, and the air in a pressure reduction container is suctioned and pressure-reduced. For example, when the pressure is reduced to about 650 mmHg, the boiling point of a large amount of moisture contained in the dried object is about 40 to 50 ° C. Then, the heat medium heated from the heating means is supplied to the heat transfer member to heat the heat transfer member. As a result, a large amount of moisture contained in the waste is actively volatilized. Then, by rotating the drive stirring means, the stirring means is efficiently heated by pushing the heat transfer member while releasing the dry matter by the stirring means, and the moisture is evaporated to effectively heat the dry matter.

The drying apparatus of Claim 2 of this invention WHEREIN: The drying processing apparatus of Claim 1 WHEREIN: The double-sided structure which consists of an outer container and a container with at least the body circumferential surface of the said pressure reduction container, and between this outer container and an inner container In addition to forming a heating medium in the heating medium, a heating means for supplying the heating medium in the heating medium is provided.

Thereby, the to-be-dried thing which heated the pressure reduction container and put into the pressure reduction container can be heated efficiently.

The drying treatment apparatus according to claim 3 of the present invention is the drying treatment apparatus according to claim 1 or 2, wherein the agitating means rotates along an inner wall of the body circumferential surface of the pressure reducing vessel, and the first scraper A second scraper is connected to an end and rotates along the side wall of the pressure reducing vessel, and a comb-shaped stirring rod inserted between the heat transfer members is fixed to the first scraper.

As a result, the first scraper rotates while sliding the inner circumferential surface of the pressure reducing container, and the second scraper rotates while sliding the side surface of the pressure reducing container. In addition, the stirring rod located is rotated while sliding the side of the heat transfer member, to prevent the adhered to the pressure-sensitive container and the heat transfer member.

The dry processing apparatus according to claim 4 of the present invention is the dry processing apparatus according to any one of claims 1 to 3, wherein a rotation shaft for axially supporting the heat transfer member in the pressure-sensitive vessel is provided at the center of the heat transfer member. In addition, the heat transfer member includes a pair of left and right discs and a spacer member for forming a heat medium path by maintaining a gap between the discs, and supplying a heat medium to a heat medium path formed between the discs to the rotating shaft. It formed the supply path and the discharge path of the heat medium.

As a result, the heat transfer member is supplied to the heat transfer member from the supply path of the rotating shaft to heat the heat transfer member as a whole. Then, the heat medium passing through the heat transfer member is discharged through the discharge path of the rotary shaft.

The drying apparatus of Claim 5 of this invention WHEREIN: In the drying processing apparatus of Claim 4, the heat medium path formed between the said disks is formed in the serpentine shape.

As a result, the heat transfer member is uniformly heated by the heat medium supplied into the heat transfer member, and the heating irregularity of the heat transfer member is suppressed.

The drying treatment apparatus according to claim 6 of the present invention is the drying treatment apparatus according to any one of claims 1 to 5, wherein the heat transfer member and the stirring means are driven by a common driving device, and the heat transfer member and the stirring means. Differential mechanism is installed to change the rotation speed.

Thereby, the heat transfer member and the stirring means are driven by the common driving device, the heat transfer member and the stirring means rotate at the same time, and the dry matter in the pressure reduction container is stirred by the heat transfer member and the stirring means. At this time, since the rotational speeds of the heat transfer member and the stirring means are different by the differential mechanism, the to-be-dried material is pressed by the stirring means and heated efficiently.

1 is a longitudinal sectional view showing a drying treatment apparatus according to an embodiment of the present invention.

2 is a cross-sectional view of the drying treatment apparatus.

Figure 3 is an enlarged longitudinal sectional view showing a stirring rod of the stirring means.

4 is an enlarged longitudinal sectional view showing a side scraper of the stirring means.

5 is a longitudinal sectional view of the heat transfer member.

6 is a longitudinal cross-sectional view of a central portion of the heat transfer member.

7 is an enlarged cross-sectional view of one end side of a rotating shaft.

8 is an enlarged cross-sectional view of the other end side of the rotating shaft.

9 is a longitudinal sectional view showing a modification of the drying treatment apparatus of the present invention.

** Explanation of symbols for important parts of drawing **

(1) Drying treatment equipment (2), (2B) Pressure Reducing Containers

(2A) Body circumference (3) External container

(4) Contents (5) Cover (side wall surface)

(12) With heating medium (22) Rotating shaft

(23) Heat transfer member (24) Disc

(25) Spacer member (25A) Ring-shaped spacer member

(26) Heating medium (27), (28) Communication path (supply path)

(29) Outlet hole (Exhaust path) (37) Supply path

(38) outlet (40) stirring means

(41) Outer Scraper (First Scraper)

(42), (43) side scraper (second scraper)

(45) Stirring Rod (50) Scraping Section

(55) Drive (56) Chain

(65) Actuator (66) Boiler (heating means)

Hereinafter, a drying treatment apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 8, the drying treatment apparatus 1 includes a pressure reducing container 2 arranged horizontally. The pressure reduction container 2 is formed in a double structure in which the body circumferential surface 2A is made up of the outer container 3 and the inner container 4, and both sides of the outer container 3 and the inner container 4. The part is closed with the cover 5 and sealed. In addition, an inlet pipe 6 for supplying a dry object is formed on the right end side of the pressure reducing container 2 and communicates with a conveying device (not shown) provided with a stopper valve. In addition, a suction pipe 7 connected to the vacuum pump 7A is connected to the upper portion of the pressure reduction container 2, and a screw 8 is connected to the drive mechanism 9 in the suction pipe 7. Rotatably attached. The screw 8 is formed with a blade 8A in a direction in which the screw 8 is pushed toward the decompression vessel 2 when rotated in the forward direction. In addition, the suction pipe 7 has a double structure consisting of the outer cylinder 10 and the inner cylinder 11 similarly to the said pressure reduction container 2, and the space part between the outer cylinder 10 and the inner cylinder 11, and pressure reduction. The space portion between the outer container 3 of the container 2 and the inner container 4 communicates with each other. The space portion between the outer container 3 and the inner container 4 of the outer cylinder 10, the inner cylinder 11, and the pressure reduction container 2 becomes the heat medium path 12. Then, the high temperature steam is supplied as a heat medium through the steam supply port 13 installed in the outer cylinder 10, and after heating the whole of the reduced pressure vessel 2 by this high temperature steam, the steam in the heat medium furnace 12 It is discharged through the steam outlet 14 installed in the outer container (3). In addition, 15 is an outlet provided with a sealing mechanism (not shown).

At the center of the decompression vessel 2, a rotating shaft 22 mounted to the bearing mechanisms 20 and 21 fixed to the centers of the lids 5 and 5 is provided, and the rotating shaft 22 is provided. A plurality of heat transfer members 23 are mounted. The heat transfer member 23 includes a pair of left and right discs 24 and 24 made of a material having high thermal conductivity, such as stainless steel, and a plurality of spacer members 25 which maintain a gap between the discs 24 and 24. ) And a ring-shaped spacer member 25A for sealing a space formed between the discs 24 and 24 by the spacer member 25, and the spacer member 25 and the ring-shaped spacer. The heat medium path 26 is formed between the disks 24 and 24 by the member 25A. In addition, the space portion between the discs 24 and 24, which become the heat medium path 26, is divided into a serpentine shape by the spacer member 25, thereby forming a serpentine heat medium 26. do. In addition, a circumferential pedestal 31 is fixed to the central portion of the discs 24 and 24, and the pedestal 31 communicates with the heat medium between the adjacent discs 24 and 24, respectively. Discharge holes, which are communication paths 27 and 28, which are supply paths for supplying the heat medium to the heat medium path 26 of the heat transfer member 23, and discharge paths through which the heat medium passing through the heat medium path 26 is discharged. 29 is provided, and the base 31 of each heat transfer member 23 continues in the axial direction by engaging the base 31 of each heat transfer member 23 with a bolt 31A. At this time, the communication paths 27 and 27 and the communication paths 28 and 28 of the adjacent disks 24 and 24 alternately communicate with each other so that the heat medium passages also communicate with each other. In addition, one communication path 27 and a discharge passage 32 are formed in the base 31 of the pedestal 31 which is continuously installed, and the discharge passage 32 penetrates toward the center of the pedestal 31. It is in communication with the discharge hole 29. Shaft portions 33 and 34 are connected to both ends of the pedestal 31, respectively, and flange portions 35 and 36 formed on the inner end side of the shaft portions 33 and 34, respectively. The rotary shaft 22 is constituted by the pedestal 31 and the shaft portions 33 and 34 of each heat transfer member 23 by coupling to the pedestal 31 and 31 positioned at both ends. Then, the shaft portions 33 and 34 of the rotating shaft 22 are axially supported by the bearing mechanisms 20 and 21, so that the outer peripheral edge of each heat transfer member 23 and the inner wall surface of the pressure reduction container 2 It has a little gap between and each said heat-transfer member 23 is provided along the axial direction of the pressure reduction container 2. In addition, as shown in FIG. 7, the shaft portion 33 is provided with a supply passage 37 in communication with the one communication passage 27 and a discharge passage 38 in communication with the discharge hole 29. It is.

Next, the stirring means 40 which stirs the dry matter in the said pressure reduction container 2 is demonstrated.

The stirring means 40 includes a pair of upper and lower outer scrapers 41 and 41 which are first scrapers which rotate substantially along the inner container 4 of the pressure reducing container 2, and the pressure reducing container 2. From the left and right pair of side scrapers 42 and 43, which are the second scrapers rotating along the lid 5, from the outer peripheral scrapers 41 and 41 toward the center direction of the pressure-sensitive container 2; A plurality of stirring rods 45 connected in the shape of a comb teeth are provided. Both sides of the side scrapers 42 and 43 are connected to the outer scrapers 41 and 41, so that the upper and lower outer scrapers 41 and 41 and the left and right side scrapers 42, 43 forms a frame shape.

In addition, the stirring rod 45 connected to the upper and lower outer scrapers 41 and 41 is inserted between the heat transfer members 23 and the heat transfer members 23 attached to the upper outer scrapers 41. The heat transfer member 23 attached to the upper outer circumferential scraper 41 is arranged in a zigzag shape. Moreover, the said outer periphery scraper 41 is comprised by the plate-like board | plate material 46, and the side scrapers 42 and 43 and the stirring rod 45 are the attachment plates fixed to the said board | plate material 46. It consists of 47 and 48, and the scraping parts 49 and 50 fixed to the edge part of this attachment plate 47 and 48 at one edge part. The scraping portions 49 and 50 slide on the inner circumferential surface of the pressure reduction container 2 and the inner surface of the lid 5. Moreover, in the center part of the attachment plates 47 and 48 of the side scrapers 42 and 43, 22 A of cylinders which penetrate to the shaft parts 33 and 34 of the said rotating shaft 22 are provided. The bearing mechanisms 51 and 52 are fixed, and the outer peripheral scrapers 41 and 41 and the side scrapers 42 and 43 connected by the bearing mechanisms 51 and 52 in a frame shape. ) Is rotatably supported by the rotation shaft 22.

Next, the driving mechanism of the stirring means 40 and the heat transfer member 23 will be described.

The rotary shaft 22 and the bearing mechanisms 51 and 52 are driven by a drive device 55 such as a common motor. That is, the drive shaft 57 which rotates through the chain 56 which is the power transmission member which spans the drive device 55 is axially supported in parallel with the said rotation shaft 22, and has the small diameter of the left side of this drive shaft 57. The drive gear portion 59A is meshed with the large-diameter rotating gear 59 attached to the rotation shaft 22. Moreover, 60 A of large diameter drive gear parts of the right side of this drive shaft 57 engage with the small diameter rotating gear 60 attached to 22 A of cylinders of the bearing mechanism 51 axially supported by the rotating shaft 22, and Thus, the rotary shaft 22 and the heat transfer member 23 are configured to rotate at different rotational speeds while being driven by a common driving device 55. That is, the drive mechanisms 59A, 60A, and rotational gears 59, 60 having different tooth numbers constitute an operating mechanism 65 for varying the rotational speeds of the rotating shaft 22 and the heat transfer member 23. .

In addition, in the figure, 66 is a boiler as a heating means. In addition, in this embodiment, seven heat transfer members 23 are arranged inside the pressure reduction container 2.

Next, with respect to the above configuration, the operation is described, after supplying the waste to the pressure reduction container 2 through the inlet pipe 6 via a conveying device (not shown), and closing the stopper valve (not shown) to reduce the pressure. The container 2 is sealed, and the vacuum pump 7A is then operated to suck the air in the pressure reduction container 2 through the suction pipe 7 to reduce the pressure. For example, when the pressure is reduced to about 650 mmHg, the boiling point of a large amount of water contained in the waste becomes about 40 to 50 ° C. At this time, the boiler 66 supplies the high-temperature, high-pressure steam through the steam supply port 13 to heat the entire pressure-reduced container 2 and to form the supply path 37 formed on the shaft portion 33 of the rotating shaft 22. Heat the heat transfer member 23 by supplying steam through the). This actively volatilizes a large amount of moisture contained in the waste. Then, when the drive shaft 55 is driven to rotate the drive shaft 57, the drive shafts 59A, 60A of the drive shaft 57 and the rotating gears 59, 60 meshed with the drive shafts 57 are rotated. 22 and 22 A of cylinders of the bearing mechanism 51 axially supported by the rotating shaft 22 drive. As the cylinder 22A rotates, the outer scrapers 41 and 41 and the side scrapers 42 and 43 of the stirring means 40 rotate, and the outer scrapers 41 and 41 rotate. Is rotated between the inner container 4 of the pressure reduction container 2 and the outer periphery of the heat transfer member 23, and the side scrapers 42 and 43 of the stirring means 40 are the heat transfer member 23. Rotate between the sides and the. In addition, the stirring rod 45 attached to the outer circumferential scrapers 41 and 41 rotates between the heat transfer members 23, and the stirring rod 45 stirs between the heat transfer members 23, thereby removing waste. While being pressed against the heat transfer member 23 and heated efficiently, the moisture is evaporated and discharged through the suction pipe 7 to dry the waste. At this time, the centrifugal force due to the stirring of the stirring rod 45 and the interactions such as suction from the suction pipe 7 with the outer scrapers 41 and 41 and the side scrapers 42 and 43. As a result, the waste passes through the gap between the heat transfer member 23 and the pressure reduction container 2 and moves from the input tube 6 side to the suction tube 7 side and is dispersed throughout the pressure reduction container 2. At this time, the waste is swung up and down inside the pressure-reducing container 2, and at this time, the waste material comes close to the suction pipe 7, so that the waste that is too light or the waste too close to the suction pipe 7 is sucked up. ) Can be aspirated. For this reason, in this embodiment, by installing the screw 8 in the suction pipe 7, the waste is pushed back to the pressure reduction container 2 side by rotating the screw 8 in the direction to push the pressure reduction container 2 side. Inflow to the vacuum pump side is prevented.

In this embodiment, since the heat transfer member 23 also rotates together with the stirring means 40, the waste is also agitated mainly by the heat transfer member 23 for heating the waste. In addition, although the heat-transfer member 23 has the clearance which the outer scrapers 41 and 41 rotate between the heat-transfer member 23 and the inner peripheral surface of the pressure reduction container 2, It is arranged to roughly divide the inside, so it contacts the waste in a large area. In addition, the inside of the heat transfer member 23 is partitioned into a serpentine shape by the spacer member 25, and is transferred from one of the communication passages 27 of the supply passage 37 and the pedestal 31 of the shaft portion 33. Since the steam supplied into the member 23 is guided in a serpentine shape by the spacer member 25, the heat transfer member 23 is heated as a whole, and thus the entire heat transfer member 23 can be uniformly heated. Uneven heating of the member 23 is also suppressed. As a result, the heat transfer efficiency of the heat transfer member 23 is improved, the waste can be efficiently heated, and the heat efficiency is excellent. In addition, the communication path 27 and the communication path 28 formed in the pedestal 31 of the adjacent heat transfer member 23 communicate with each other alternately. Thereby, the steam supplied from the communication path 27 of the heat transfer member 23 exits through the other communication path 28, which communicates with the communication path 28 of the adjacent heat transfer member 23. ) Is in communication with. Thus, the steam supplied from the supply path 37 of the shaft portion 33 sequentially passes through the inside of the heat transfer member 23, and the discharge passage formed in the pedestal 31 in the heat transfer member 23 located on the terminal side. It is discharged through the discharge path 38 of the shaft portion 33 via the discharge hole 29 penetrating from the 32 to the center of the pedestal 31. In addition, the heat transfer member 23 rotates together with the stirring means 40, but the rotary shaft 22 and the heat transfer member (59A, 60A) and the rotation gears 59, 60 differ in the number of teeth. Since the rotational speed of 23 is different, the heat transfer member 23 is slower than the stirring means 40, so that the scraping unit 50 fixed to the stirring rod 45 rotating between the heat transfer members 23 is transferred. By sliding to the side of the member 23, it is possible to prevent adhesion of waste to the heat transfer member 23. Similarly, the scraping portions 49 of the side scrapers 42 and 43 slide on the inner surface of the lid 5. In addition, the outer circumferential scrapers 41 and 41 rotate along the inner circumferential surface of the pressure reducing container 2 to prevent adhesion of waste to the inner surface of the pressure reducing container 2.

If the waste has been dried for a predetermined time by such a drying process by depressurizing and heating, the waste may be discharged through the discharge port 15 and disposed of.

As described above, the drying treatment apparatus of this embodiment is rotatable in parallel with the pressure reducing container 2 connected to the vacuum pump 7A as the pressure reducing means and the axial direction of the pressure reducing container 2. Stirring means for stirring the dry matter in the decompression vessel 2 between the heat transfer member 23, the boiler 66 as a heating means for heating the heat transfer member 23, and the heat transfer member 23. 40 is provided. For this reason, the to-be-dried material is thrown in the pressure reduction container 2, and the heat transfer member 23 is heated by the boiler 66 as a heating means, and waste is removed while heating a to-be-dried material. At this time, by operating the vacuum pump 7A as a decompression means to depressurize the inside of the decompression vessel 2 to about 600 mmHg, the boiling point of water contained in the waste is lowered to 40 to 50 ° C., so it is efficiently volatilized and contained in the waste. Most of the water present can be removed quickly. Thereby, the processing time for drying the to-be-dried material can be shortened significantly.

In this embodiment, at least the body circumferential surface of the pressure reduction container 2 has a double structure consisting of the outer container 3 and the inner container 4, and between the outer container 3 and the inner container 4. The heating medium 12 is formed at the same time, and the heating medium 12 is provided with a boiler 66 as a heating means for supplying steam as the heating medium. For this reason, the to-be-dryed object put into the pressure reduction container 2 is heated in the pressure reduction container 2 as a whole, and the processing time for drying the to-be-dried object can be shortened more.

In addition, in this embodiment, the outer peripheral scrapers 41 and 41 which are the first scrapers which rotate the stirring means 40 along the inner wall of the body circumferential surface of the pressure reduction container 2 and this outer peripheral scraper 41 Side scrapers 42 and 43 which are second scrapers which are connected to end portions of the pressure reducing container 2 and rotate along the side wall surface of the pressure reducing container 2, and the outer scrapers 41, A plurality of stirring rods 45 connected in a comb-tooth shape toward the center direction of the pressure-sensitive vessel 2 are fixed from 41. As a result, the outer circumferential scrapers 41 and 41 and the side scrapers 42 and 43 rotate while sliding the inner circumferential surface of the pressure reduction container 2, and the stirring rod 45 is transferred to the heat transfer member 23. Since it rotates while sliding the side surface, attachment of the to-be-dried material to these heat-transfer member 23 and the pressure reduction container 2 can be prevented.

In addition, in the present embodiment, the rotary shaft 22 for supporting the decompression vessel 2 is provided at the center of the heat transfer member 23, and the heat transfer member 23 has a pair of left and right discs 24. ) And a spacer member 25 for forming a heat medium path 26 while maintaining a gap between the discs 24, and a heat medium path 26 formed between the discs 24 on the rotating shaft 22. The communication paths 27 and 28 for supplying the heating medium to the heating medium and the discharge holes 29 of the heating medium are formed. As a result, leakage of the heat medium into the pressure reduction container 2 can be suppressed, and since the piping work of the heat medium is not necessary, the assembly workability is also excellent.

In this embodiment, the heat medium path 26 formed between the discs 24 is formed in a serpentine shape. As a result, since the heat transfer member 23 can be heated as a whole by the heat medium supplied into the heat transfer member 23, the heating unevenness of the heat transfer member 23 can be effectively suppressed and the entire heat transfer member 23 is uniformly heated. You can do it. As a result, the heat transfer efficiency of the heat transfer member 23 is improved, and the waste can be efficiently heated, which is also excellent in heat efficiency.

In addition, in the present embodiment, the heat transfer member 23 and the stirring means 40 are driven by a common driving device 55, and the rotation speed of the heat transfer member 23 and the stirring means 40 is varied. The differential mechanism 65 is provided. For this reason, the heat transfer member 23 and the stirring means 40 rotate by the drive device 55, and the to-be-dried material which was put into the pressure reduction container 2 is loosened by the stirring means 40 and the heat transfer member 23, and is. It is heated efficiently by pressing on the heat transfer member 23, moisture is evaporated, and the dry matter is dried early. In addition, since the stirring means 40 and the heat transfer member 23 have speed differences, the scraping portion 50 fixed to the stirring rod 45 rotating between the heat transfer members 23 is provided on the side surface of the heat transfer member 23. Sliding and similarly, the side scrapers 42 and 43 and the outer scrapers 41 and 41 rotate along the inner surface of the lid 5 and the inner circumferential surface of the pressure-reducing container 2 to heat transfer members 23. ) And the adhesion of waste to the inner surface of the pressure reduction container 2 can be prevented.

As mentioned above, although the drying treatment apparatus of this invention was demonstrated based on the said Example, this invention is not limited to this Example, A various deformation | transformation is possible within the scope of the idea of this invention. For example, in the above embodiment, a case of a waste drying apparatus has been described as an example, but the present invention is not limited thereto, and the present invention can be applied to various kinds of dry items such as medicines and foods. In addition, as shown in FIG. 9, a pressure reducing container 2B having a longer body than that of the above embodiment is provided, and more heat-transfer members 23 and stirring rods 45 are disposed in the axial direction of the pressure reducing container 2B. What is necessary is just to select suitably the number of the heat-transfer members 23 and the stirring rod 45 in the pressure reduction container 2B. Moreover, as a heating method or a heat medium, various methods and a heat medium can be used. In addition, a decompression condition and a heating temperature are not limited to an Example. The heat transfer member 23 and the stirring rod 45 may be configured to rotate in opposite directions to each other. Moreover, the path | route of a heat medium can also be selected suitably. In addition, the size, shape and number of stirring means can be selected as appropriate.

A drying treatment apparatus according to claim 1 of the present invention includes a pressure reducing container connected to a pressure reducing means, a rotatable heat transfer member arranged in a direction perpendicular to an axial direction of the pressure reduction container, heating means for heating the heat transfer member, It is provided between the heat transfer member and the stirring means for stirring the dry matter in the reduced pressure vessel, the pressure of the moisture contained in the dried by lowering the pressure in the reduced pressure vessel by the pressure reduction means volatilized efficiently As a result, most of the moisture contained in the dry matter can be removed quickly. Thereby, the processing time for drying a to-be-dried material can be shortened significantly.

The drying apparatus of Claim 2 of this invention WHEREIN: The drying processing apparatus of Claim 1 WHEREIN: The double structure which consists of an outer container and a container with at least the body perimeter surface of the said pressure reduction container, and between this outer container and an inner container Since the heating medium is formed in the heating medium and the heating means for supplying the heating medium in the heating medium furnace is provided, the dried product put into the pressure-reducing container can be efficiently heated.

The drying treatment apparatus according to claim 3 of the present invention is the drying treatment apparatus according to claim 1 or 2, wherein the agitating means rotates along an inner wall of the body circumferential surface of the pressure reducing vessel, and the first scraper And a second scraper connected to an end and rotating along the side wall surface of the pressure reducing container, and fixing a comb-shaped stirring rod inserted between the pressure reducing means to the first scraper, thereby providing first and second scrapers. While rotating while sliding the inner circumferential surface of the pressure reduction vessel, the stirring rod is rotated while sliding the side of the heat transfer member to prevent the attachment of the dry member to the heat transfer member and the pressure-reduction vessel. Thereby, a to-be-dried object can be heated more efficiently.

The drying treatment apparatus according to claim 4 of the present invention is the drying treatment apparatus according to any one of claims 1 to 3, wherein a rotation shaft for axially supporting the heat transfer member in the pressure reduction container is provided at the center of the heat transfer member. In addition, the heat transfer member is provided with a pair of left and right discs and a spacer member for forming a heat medium path by maintaining a gap between the discs, and supplying the heat medium to the heat medium path formed between the respective discs to the rotating shaft Since the supply path and the discharge path of the heat medium are formed, the heat medium is supplied to the heat transfer member from the supply path of the rotary shaft to heat the heat transfer member, and the heat medium passing through the heat transfer member is discharged through the discharge path of the rotary shaft. As a result, leakage of the heat medium to the pressure-sensitive vessel can be suppressed, and since the piping work of the heat medium is not necessary, the assembly workability is also excellent.

The drying treatment apparatus according to claim 5 of the present invention is the drying treatment apparatus according to claim 4, wherein the heat treatment medium formed between the discs is formed in a serpentine shape, and therefore, the heat treatment member is supplied to the inside of the heat transfer member. The heat transfer member is uniformly heated to suppress heating irregularities of the heat transfer member.

The drying treatment apparatus according to claim 6 of the present invention is the drying treatment apparatus according to any one of claims 1 to 5, wherein the heat transfer member and the stirring means are driven by a common driving device, and the heat transfer member and the stirring means. Since the differential mechanism for varying the rotational speed of the motor is provided, the heat transfer member and the stirring means are driven by a common driving device, and the heat transfer member and the stirring means rotate at the same time. Thereby, the to-be-dried material in a pressure reduction container can be stirred efficiently by a heat transfer member and a stirring means. In addition, by changing the rotational speeds of the heat transfer member and the stirring means by the differential mechanism, the dry matter is pressed against the heat transfer member by the stirring means, and the dry object can be heated efficiently.

Claims (6)

A pressure reducing container in communication with the pressure reducing means, a rotatable heat transfer member disposed in a direction perpendicular to the axial direction of the pressure reduction container, a heating means for heating the heat transfer member, and positioned between the heat transfer member in the pressure reduction container. And a stirring means for stirring the dry item. The method of claim 1, The double structure of the outer circumferential surface of the decompression vessel is made up of the outer container and the inner container, and a heating means is formed between the outer container and the inner container, and heating means for supplying the thermal medium to the heating medium furnace is provided. Drying treatment apparatus. The method according to claim 1 or 2, The agitating means having a first scraper rotating along an inner wall of the body peripheral surface of the pressure reducing vessel, a second scraper connected to an end of the first scraper and rotating along a side wall surface of the pressure reducing vessel and the first Drying apparatus characterized in that fixed to the scraper comb-type stirring bar inserted between the heat transfer member. The method according to claim 1 or 2, At the center of the heat transfer member, a rotating shaft for axially supporting the heat transfer member to the pressure-sensitive vessel is provided, and the heat transfer member includes a pair of left and right discs and a spacer member for forming a heat medium path by keeping a gap between the discs. And a supply path for supplying the heat medium to the heat medium paths formed between the discs, and a discharge path of the heat medium on the rotary shaft. The method of claim 4, wherein Drying apparatus characterized in that the heating medium formed between the disk to form a winding shape. The method according to any one of claims 1, 2, and 5, And a differential mechanism in which the heat transfer member and the stirring means are driven by a common driving device, and a differential mechanism for varying the rotational speeds of the heat transfer member and the stirring means.