JP2008002791A - Drying volume reduction device for object to be processed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact drying volume reduction device for objects to be processed capable of reducing volume by efficiently drying slurry-like objects to be processed. <P>SOLUTION: In the drying volume reduction device for objects to be processed, a circumferentially turning drive shaft 20 is horizontally laid across in a housing 10 provided with an input opening 16 for the objects to be processed and a discharge opening 17 for dried cakes, and a heating agitation means 30 is fixed to the drive shaft 20. In the heating agitation means 30, a plurality of looped pipes 31 formed with a plurality of oval holes 31c jetting out steam S and recovering drain D surround the drive shaft 20, a pair of plates 32, 32 holds each looped pipe 31 from both side faces, and agitation blades 33 radially protrude from the looped pipe 31. In the looped pipe 31, one end 31a is attached to a steam header 24 provided in parallel with the drive shaft 20, and another end 31b is provided in a drain recovery part 22 formed in a middle part of the drive shaft 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is for reducing waste volume by drying discarded food waste, food residue, dehydrated sludge, moisture-containing powder, polyethylene, silica gel, coal, iron oxide, pharmaceutical bulk powder, ABS and other processed materials. More particularly, the present invention relates to an apparatus for drying and reducing the volume of an object to be processed, which is provided with a heating and stirring means for stirring the object to be processed while heating.

  Patent Document 1 discloses a dry distillation volume reduction device for wastes for drying and volume reduction of wastes such as food residues and dehydrated sludge. This waste carbonization volume reduction device includes first and second dryers that preheat and dry the waste with hot air, a crusher that crushes and granulates the waste in advance, and waste with superheated steam. It is equipped with a dry distillation container that overheats and reduces the dry distillation volume.

International Publication No. WO01 / 51587A1 Pamphlet

  The waste carbonization volume reduction device disclosed in Patent Document 1 is a combination of a large number of devices such as the first and second dryers, which increases the size of the device and requires a large installation space. Also rises. Furthermore, this waste carbonization volume reduction device cannot be said to have good productivity because the waste is dried through a plurality of stages.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a dry volume reduction device for a workpiece that is compact and that can efficiently dry and reduce the volume of the workpiece.

  The apparatus for drying and reducing the volume of an object to be processed according to the present invention includes a drive shaft that rotates in a circumferential direction in a housing provided with an input port for an object to be processed and an outlet port for a dried cake, A device for drying and reducing the volume of a workpiece, comprising a heating and stirring means that surrounds the drive shaft with a plurality of loop-shaped pipes, and a set of two plates sandwiching both side surfaces of the pipes. A plurality of small holes or long holes for collecting steam and a slit extending over the entire length are formed on the inner peripheral surface, and a concave portion recessed toward the drive shaft is provided. Yes.

  According to this apparatus for drying and reducing the volume of an object to be processed, the object to be processed put into the housing from the inlet is heated by the heating and stirring means, and the moisture is evaporated to dry and reduce the volume of the powder. It becomes a dry cake and is discharged from the outlet. The heating and stirring means includes a plurality of loop-shaped pipes surrounding the drive shaft, and a set of two plates sandwiching both side surfaces of each pipe, and a closed space is formed inside these. Then, steam is supplied into the loop-shaped pipe, and this steam is injected into the closed space from a small hole or long hole or a part of the slit located on the upper side. Then, each plate is heated to a high temperature, and the drain generated in the closed space is returned to the loop-shaped pipe from a portion of the small hole or long hole or slit located on the lower side. And the to-be-processed object thrown in in a housing contacts a high temperature plate in a wide surface, and penetrates into a recessed part. Since the concave portions of the adjacent heating and stirring means are continuous, the object to be processed in the concave portion is stirred by moving in the lateral direction. Moreover, when the recessed part is discontinuous, the workpiece is stirred while moving up and down. In any case, the object to be treated is efficiently heated, the water is evaporated, and a reduced dry cake is produced.

  In the apparatus for drying and reducing a volume of an object to be processed according to the present invention, the drive shaft has a steam header for supplying steam into the pipe on a side surface, and a steam introduction hole for supplying steam to the steam header. Formed on one end side, forming a drain recovery part for storing the drain generated in the pipe in the intermediate part, and forming a drain discharge hole for discharging the drain in the drain recovery part on the other end side, It is preferable that one end portion of the loop-shaped pipe is attached to the steam header and the other end portion is inserted into the drain recovery portion.

  According to this apparatus for drying and reducing the volume of an object to be processed, one end of a loop-shaped pipe is attached to a steam header attached to the side surface of the drive shaft, and the other end is inserted into the drain recovery part, thereby The pipe is rotated as the drive shaft rotates in the circumferential direction. In addition, the steam is supplied from the steam introduction hole formed on one end side of the drive shaft into the loop-shaped pipe via the steam header, and the small hole or the long hole or the full length located on the upper side of the loop-shaped pipe. Is injected into the enclosed space from a part of the slit. This steam becomes a drain in the enclosed space, and this drain returns to the inside of the looped pipe from a small hole or a long hole located under the looped pipe or a part of the slit extending over the entire length, and the drive shaft. It is discharged into the drain recovery part formed in the intermediate part. The drain in the drain recovery part is discharged from a drain discharge hole formed on the other end side of the drive shaft.

  Moreover, in the drying volume reducing apparatus for an object to be processed according to the present invention, it is preferable that a stirring blade protruding in a radial direction from the recessed portion is attached to the pipe.

  According to this apparatus for drying and reducing the volume of an object to be processed, the object to be processed that has entered the recessed portion is also rotated and stirred by the stirring blades. In other words, the object to be processed collected at the bottom of the housing is scraped upward, and the efficiency of drying can be improved without contacting only the specific object to be processed with the plate.

  Moreover, the drying volume reduction apparatus of the to-be-processed object which concerns on the said invention WHEREIN: The said stirring blade may be provided with the gradient.

  According to this apparatus for drying and reducing volume of an object to be processed, the object to be processed in the housing can be transported from the upstream side to the downstream side by providing a gradient to the stirring blades.

  Further, in the apparatus for drying and reducing the volume of the object to be processed according to the present invention, it is preferable that a scraper for scraping off the object to be processed attached to each plate is provided between the heating and stirring means.

  According to the apparatus for drying and reducing the volume of the object to be processed, the scraper for scraping off the object to be processed is provided, so that the object to be processed does not adhere to each plate. The object to be processed can be prevented from adhering and clogging.

  Moreover, in the drying / reducing apparatus for an object to be processed according to the present invention, it is preferable that a jacket for increasing the temperature in the housing is attached to the housing.

  According to this apparatus for drying and reducing the volume of an object to be processed, steam is supplied into a jacket attached to the housing, and the inside of the jacket is heated to a high temperature, whereby the inside of the housing is brought to a high temperature atmosphere. Therefore, the object to be processed put in the housing is placed in a high temperature atmosphere by the jacket in addition to the heated plate, so that the water is evaporated more quickly and the processing time can be shortened.

  Further, in the dry volume reduction device for an object to be processed according to the present invention, a spiral pipe that fixes the heatable stirring means on the upstream side of the drive shaft, flows in steam, and discharges the drain is connected to the drive shaft. It is good also as what fixed the 2nd heating stirring means in which the surrounding stirring and the several stirring blade protruded from the spiral pipe to the radial direction downstream of the said drive shaft.

  In this apparatus for drying and reducing the volume of an object to be processed, a heating and stirring means (hereinafter also referred to as “first heating and stirring means”) provided with the plate on the upstream side of the drive shaft is fixed, and the drive shaft on the downstream side is fixed. The second heating and stirring means is fixed. The object to be processed put into the housing is conveyed from the first heating and stirring means to the second heating and stirring means. The object to be processed conveyed to the second heating / stirring means is pretreated to evaporate moisture by the first heating / stirring means, and its viscosity is lowered, so that it adheres to the spiral pipe and is shared. There is no turning. Therefore, the second heating and agitation means can further evaporate the moisture of the material to which the moisture has been evaporated in the pretreatment, thereby generating a reduced dry cake. The apparatus for drying and reducing the volume of the object to be processed can be reduced in cost by being provided with the first heating and stirring means and the second heating and stirring means, as compared with the case where all of them are composed of the first heating and stirring means.

  According to the present invention, a drive shaft that rotates in the circumferential direction is installed in a housing into which an object to be processed is placed, and the heating and stirring means fixed to the drive shaft includes a plurality of small holes, long holes, or slits extending over the entire length. And a pair of plates sandwiching each of the pipes, and a closed space is formed by the looped pipe, the pair of plates, and the drive shaft, and formed into a looped pipe. Each plate is heated by spraying steam into a closed space from a small or long hole or a slit extending over the entire length. Then, the object to be processed put in the housing comes into contact with the heated plate on a wide surface, and enters the recessed portion and is stirred while moving in the lateral direction. Can be dried and reduced in volume. As a result, the dry volume reduction device for the object to be processed can efficiently generate the object to be processed into a dry cake.

Embodiment 1
A first embodiment of an apparatus for drying and reducing the volume of an object to be processed according to the present invention will be described with reference to FIGS. As shown in FIG. 1, this apparatus for drying and reducing the volume of an object to be processed is one in which a heating / stirring means 30 is fixed to a drive shaft 20 in a horizontal posture that extends so as to penetrate a housing 10.

  The housing 10 is provided with a top plate 11, two side plates 12, 12, a bottom plate 13, and a processing chamber 15 substantially closed by two end plates 14, 14, and both side plates 12, 12 and the bottom plate 13 are provided. The bottom plate 13 is integrally formed and has a bowl shape. Further, the top plate 11 is provided with a workpiece inlet 16, and the bottom plate 13 is provided with a dry cake outlet 17.

  And the bearings 40 and 40 which support the drive shaft 20 are installed in the outer side of each side plate 12. As shown in FIG. A sprocket 41 is attached to one end of the drive shaft 20, and a chain 43 is hung on the sprocket 41 and the rotation shaft of the motor 42 so that the drive shaft 20 rotates in the circumferential direction, for example, 5 to 10 revolutions per minute. Has been.

  The drive shaft 20 is solid at one end, a steam introduction hole 21 is formed, the intermediate portion is cylindrical and a drain recovery portion 22 is formed, the other end is solid, and a drain discharge hole 23 is formed. . A tubular steam header 24 is provided on the side surface of the drive shaft 20 over substantially the entire length. The inside of the steam header 24 and the steam introduction hole 21 communicate with each other, and the steam S is supplied from the steam introduction hole 21 into the steam header 24.

  The heating and stirring means 30 fixed to the drive shaft 20 includes a plurality of loop-shaped pipes 31, a set of two plates 32 and 32, and a stirring blade 33 protruding from the pipe 31. As shown in FIG. 2, one end 31 a of the pipe 31 is attached to the steam header 24, and the other end 31 b is attached so as to enter the drain recovery part 22.

  Specifically, one end portion 31a of the pipe 31 protrudes in the radial direction from the steam header 24, the drive shaft 20 is wound around the circumference by about 5/5 at a constant interval, and enters the drain collecting portion 22 in the radial direction. A recessed portion 34 that is recessed toward the drive shaft 20 is provided in a portion that is not surrounded. Therefore, when the drive shaft 20 rotates in the circumferential direction, the pipe 31 and the recessed portion 34 also rotate in the circumferential direction. Further, the recessed portion 34 provided in each heating and agitating means 30 is continuous, and one recessed portion 34 is provided over almost the entire length of the drive shaft 20. And the steam S which flowed in in the steam header 24 is supplied in the pipe 31 with the pressure of about 0.5-0.7 MPa.

  A plurality of long holes 31c, 31c,... Are formed on the inner peripheral surface of the pipe 31, as shown in FIG. Instead of the long holes 31c, 31c..., A single row or a plurality of rows of small holes, or slits extending over the entire length may be formed. Since the pipe 31 is rotated by the rotation of the drive shaft 20 in the circumferential direction, the long holes 31c, 31c. Then, the steam S supplied into the pipe 31 is sprayed from the long hole 31c positioned on the upper side, and the drain 31 generated by cooling the steam S is discharged from the long hole 31c positioned below the pipe 31. Collected in.

  A set of two plates 32 and 32 sandwich the pipe 31 from both sides, and the joint is welded. The plate 32 is provided with a substantially V-shaped notch 32 a that penetrates the drive shaft 20 and does not block the recessed portion 34. A closed space 35 is formed by the two plates 32, 32, the pipe 31 and the drive shaft 20.

  And the stirring blade 33 protrudes from the said recessed part 34 to radial direction. The stirring blade 33 is attached to the distal end portion of the arm 33 a, and the proximal end portion of the arm 33 a is fixed to the one end portion 31 a of the pipe 31. The stirring blade 33 also rotates in the circumferential direction when the drive shaft 20 and the pipe 31 rotate in the circumferential direction. Therefore, the outer edge of the stirring blade 33 protrudes from the pipe 31 so as to be close to the both side plates 12 and the bottom plate 13 of the housing 10. Further, since the bottom plate 13 is formed in a bowl shape, the distance between the tip edge of the stirring blade 33 and the side plates 12 and the bottom plate 13 is maintained constant.

  The heating / stirring means 30 is configured as described above, and a plurality (four in the drawing) are fixed to the drive shaft 20 with a certain interval. A scraper 18 is disposed between the plates 32 of each heating and stirring means 30 and in close proximity to the outer plates 32 facing both end plates 14. The scraper 18 is fixed to a suspension rod 18 a suspended from the top plate 11.

  A jacket 19 for heating the inside of the processing chamber 15 is attached to the bottom or side of the housing 10. Steam S having a pressure of about 0.19 MPa is supplied into the jacket 19. The bottom plate 13 of the jacket 19 is provided with a drain discharge hole 19a. Since the steam S supplied into the jacket 19 has a lower pressure than the steam S supplied to the steam header 24, each steam S is supplied through an independent route. However, the steam S may be branched into one route and supplied to the jacket 19 via the pressure reducing valve.

  The apparatus for drying and reducing the volume of an object in the first embodiment is configured as described above. Next, a method of use and operation will be described. Steam S is supplied into the jacket 19 in advance, and the inside of the jacket 19 is heated, so that the inside of the processing chamber 15 is brought into a high-temperature atmosphere. The drain D generated in the jacket 19 is discharged from the drain discharge hole 19a.

  On the other hand, the drive shaft 20 is rotated while supplying the steam S into the steam header 24 from the steam introduction hole 21 provided on one end side of the drive shaft 20. Then, the steam S in the steam header 24 is supplied into the pipe 31, and as shown in FIG. 3A, is injected into the closed space 35 from the inside of the long hole 31c positioned on the upper side. Then, the inside of the closed space 35 of the heating and stirring means 30 is in a high temperature state, and each plate 32 is heated to a high temperature on the entire surface. Combined with the heating by the jacket 19, the inside of the processing chamber 15 becomes, for example, about 70 ° C.

  The steam S injected into the closed space 35 to heat the plate 32 becomes the drain D by heating the plate 32. The drain D is returned into the pipe 31 from the long hole 31 c located on the lower side of the pipe 31. Since the inside of the pipe 31 is at a high pressure of about 0.5 to 0.7 MPa, the drain D is pressed against the inner peripheral wall of the pipe 31 and rotates together with the pipe 31. As shown in FIG. 3B, when the other end 31 b of the pipe 31 faces downward (including an inclined downward direction), the drain D is discharged into the drain recovery part 22 of the drive shaft 20. . As shown in FIG. 1, the drain D is discharged from a drain discharge hole 23 provided on the other end side of the drive shaft 20.

  Under such circumstances, the workpiece A is thrown into the processing chamber 15 from the charging port 16 provided in the housing 10. The workpiece A is deposited on the bottom side of the processing chamber 15 while entering between the plates 32 of each heating and stirring means 30. However, the workpiece A to be loaded is limited to an amount that does not contact the drive shaft 20. And when the drive shaft 20 rotates, the heating and stirring means 30 rotates. Then, the workpiece A accumulated on the bottom side of the processing chamber 15 is scraped up to the upper side of the processing chamber 15 by the stirring blade 33. Further, the workpiece A that has been scraped upward enters the recess 34 of the heating and stirring means 30 without being clogged between the plates 32 of the heating and stirring means 30 by the scraper 18. When the adjacent concave portions 34 are continuous, the workpiece A in the concave portion 34 is stirred while moving in the lateral direction. When the recessed part 24 is discontinuous, the workpiece A is stirred while moving up and down.

In this way, the workpiece A that is heated by the plate 32 and stirred while moving in the recessed portion 34 is heated with good thermal conductivity by contacting the plate 32 with a wide surface, so that the dried cake is efficiently produced. Generated. The dried cake is discharged from the discharge port 17 with a weight of about 30% of the workpiece A. This dry cake can be produced either in a batch process or in a continuous process. This apparatus for drying and reducing the volume of the object to be processed can further evaporate the water content of the object to be processed A. However, if the water is excessively evaporated, fine powder is generated, which makes the handling troublesome.
[Embodiment 2]

  Next, a second embodiment of the dry volume reducing apparatus for processing objects according to the present invention will be described with reference to FIG. However, portions corresponding to the same portions as those described in the first embodiment will be described with the same reference numerals.

  This apparatus for drying and reducing the volume of an object to be processed is for drying the object to be processed A while the housing 10 and the drive shaft 20 are, for example, 5 to 6 times longer than those of the first embodiment. Has been. Therefore, the top port 11 on the upstream side (left side in the drawing) of the housing 10 is provided with the inlet 16 for the workpiece A, and the bottom plate 13 on the downstream side (right side in the drawing) is provided with the dry cake discharge port 17. Yes. Further, a paper discharge port (not shown) for discharging fine powder in the processing chamber 15 is provided at the center of the top plate 11 as necessary.

  As in the first embodiment, the drive shaft 20 is provided with a steam header 24 on the side, a steam introduction hole 21 on one end side, a drain recovery part 22 on the intermediate part, and a drain discharge hole 23 on the other end side. Is formed. The heating and stirring means 30 of the first embodiment (hereinafter referred to as “first heating and stirring means 30”) is fixed to the upstream side of the drive shaft 20 and the second side is downstream of the drive shaft 20. The heating and stirring means 50 is fixed.

  The second heating and stirring means 50 includes a spiral pipe 51 to which steam S is supplied and recovered, and a stirring blade 52 disposed on the outer side of the spiral pipe 51. The second heating / stirring means 50 is not provided with a plate like the first heating / stirring means 30, and therefore no hole is formed in the spiral pipe 51. The spiral pipe 51 surrounds the drive shaft 20 in a spiral shape, one end portion is attached to the steam header 24, and the other end portion 31 b enters the drain collection portion 22 in the drive shaft 20. The spiral pipe 51 is not a single pipe as shown in the figure, but a plurality of pipes are arranged in series, one end of each is attached to the steam header 24, and the other end 31b enters the drain recovery part 22. May be.

  In any case, the stirring blade 52 is fixed to the spiral pipe 51 so as to protrude. Both the stirring blade 52 and the stirring blade 33 provided in the first heating and stirring means 30 are inclined to convey the workpiece A from the upstream side to the downstream side.

  A jacket (not shown) for heating the inside of the processing chamber 15 to a high temperature is attached to the bottom or side of the housing 10. The motor 42 that rotates the drive shaft 20 in the circumferential direction is disposed on one end side (the side on which the steam introduction hole 21 is formed) of the drive shaft 20 in FIG. 1, and the other end side (drain) of the drive shaft 20 in FIG. Although it is arranged on the side where the discharge hole 23 is formed, it may be arranged on either side.

  Here, the usage method and operation | movement of the drying volume reduction apparatus of the to-be-processed object in 2nd Embodiment are demonstrated. In advance, steam S is supplied into the jacket, and the inside of the processing chamber 15 is heated to a high temperature. Then, the drive shaft 20 is rotated while supplying the steam S into the steam header 24 from the steam introduction hole 21 provided on one end side of the drive shaft 20. Then, the steam S in the steam header 24 is supplied into the loop-shaped pipe 31 provided in the first heating and stirring means 30, and is injected into the closed space 35 from the inside of the long hole 31c located on the upper side. The In this manner, the inside of the closed space 35 of the first heating and agitating means 30 is in a high temperature state, and each plate 32 is heated to the entire surface at a high temperature. Then, the drain D generated in the closed space 35 flows into the drain recovery part 22 of the drive shaft 20.

  On the other hand, the steam S is also supplied into the spiral pipe 51 provided in the second heating and stirring means 50, and the spiral pipe 51 is heated to a high temperature. The drain D generated in the spiral pipe 51 also flows into the drain recovery part 22 of the drive shaft 20. The drain D in the drain recovery part 22 is discharged from the drain discharge hole 23.

  Then, the workpiece A is fed into the processing chamber 15 from the workpiece inlet 16. The workpiece A is conveyed downstream by the stirring blade 33 of the first heating and stirring means 30. Since the workpiece A is heated by the plate 32, the water is efficiently evaporated and conveyed to the second heating / stirring means 50 without rotating together.

  This object to be processed A is pretreated by the first heating and stirring means 30, and a certain amount of water is evaporated and its viscosity is lowered, so that it adheres to the spiral pipe 51 of the second heating and stirring means 50. In other words, it is heated without co-rotation. Therefore, the workpiece A is further dried by the second heating and stirring means 50, and a dry cake is generated. The dried cake is discharged from the discharge port 17.

  Note that, if the workpiece A is dried only by the second heating and stirring means 50 without drying the workpiece A by the first heating and stirring means 30, the viscosity of the workpiece A will cause the article to be treated. The processed material A may adhere to the spiral pipe 51 and rotate together. However, the workpiece A is dried in advance by the first heating / stirring means 30 and has a reduced viscosity, so that it is dried without co-rotating with the spiral pipe 51 of the second heating / stirring means 50. A reduced volume dry cake is produced.

  In addition, this invention can be variously changed within the range of the invention specific matter described in the claim, without being limited to the said embodiment. For example, you may make it provide the 1st heating stirring means 30 over the full length of the housing 10 and the drive shaft 20 of the length demonstrated in 2nd Embodiment. In this case, although the cost is higher than that of the apparatus for drying and reducing the volume of the object described in the second embodiment, the drying efficiency can be further increased.

  Further, the first heating and stirring means 30 has been described with respect to the case where each of the loop-shaped pipes 31 surrounds the drive shaft 20 one by one and forms the recessed portion 34 one by one. Two of the pipes 31 may be attached to the side surface of the drive shaft 20, and two loop-shaped pipes 31 may be provided as a set. Or you may provide the recessed part 34 in two places by denting the intermediate part of the one loop-shaped pipe 31 toward the drive shaft 20. FIG. Furthermore, the stirring blade 33 and the jacket 19 are not necessarily provided. Further, the steam header 24 may be formed inside the drive shaft 20 without being attached to the side surface of the drive shaft 20.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional front view showing a first embodiment of an object to be processed drying volume reducing apparatus according to the present invention. It is 1st Embodiment of the drying volume reduction apparatus of the to-be-processed object which concerns on this invention, Comprising: It is the XX schematic sectional drawing of FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is one Embodiment of the 1st heating stirring means with which the drying volume reduction apparatus of the to-be-processed object which concerns on this invention was equipped, Comprising: (a) is a side view which shows the state of an initial stage or the middle, (b) It is a side view which shows the state in the middle different from (a). It is a cross-sectional front view which shows 2nd Embodiment of the drying volume reduction apparatus of the to-be-processed object which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Housing 16 ... Input port 17 ... Discharge hole 18 ... Scraper 19 ... Jacket 20 ... Drive shaft 21 ... Steam introduction hole 22 ... Drain collection part 23 ... Drain discharge hole 24 ... Steam header 30... (First) heating and stirring means 31... (Loop-like) pipe 31 a... One end 31 b. Second heating and stirring means 51... Spiral pipe 52... Stirring blade A.

Claims (7)

A drive shaft that rotates in the circumferential direction is installed in a housing in a housing in which an input port for an object to be processed and a discharge port for a dry cake are provided, and a plurality of loop-shaped pipes surround the drive shaft. An apparatus for drying and reducing the volume of an object to be treated, provided with a heating and stirring means for sandwiching both sides of the pipe between a set of two plates,
The pipe sprays steam and forms a plurality of small holes or long holes for collecting the drain or a slit extending over the entire length on the inner peripheral surface, and is provided with a recessed portion that is recessed toward the drive shaft. An apparatus for drying and reducing the volume of an object to be processed. The drive shaft is provided with a steam header for supplying steam into the pipe on a side surface, a steam introduction hole for supplying steam to the steam header is formed on one end side, and a drain generated in the pipe is stored. A drain recovery part is formed in the middle part, and a drain discharge hole for discharging the drain in the drain recovery part is formed on the other end side,
The apparatus for drying and reducing a volume of an object to be processed according to claim 1, wherein the loop-shaped pipe has one end attached to the steam header and the other end inserted into the drain recovery part. .   The apparatus for drying and reducing volume of an object to be processed according to claim 1, wherein a stirring blade protruding in a radial direction from the recessed portion is attached to the pipe.   The apparatus for drying and reducing volume of an object to be processed according to claim 3, wherein the stirring blade has a gradient.   The apparatus for drying and reducing the volume of an object to be processed according to any one of claims 1 to 4, wherein a scraper for scraping off the object to be processed adhering to each plate is provided between the heating and stirring means.   The apparatus for drying and reducing the volume of an object to be processed according to any one of claims 1 to 5, wherein a jacket for increasing the temperature inside the housing is attached to the housing. Fixing the heatable stirring means according to any one of claims 1 to 6 to the upstream side of the drive shaft;
A spiral pipe that flows in steam and discharges a drain surrounds the drive shaft, and a plurality of stirring blades are fixed on the downstream side of the drive shaft with a second heating and stirring means protruding radially from the spiral pipe. An apparatus for drying and reducing the volume of an object to be processed.

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