JP6150280B2 - Cleaning device - Google Patents

Description

  The present invention relates to a cleaning device for cleaning a mixing blade used in a solidifying device for solidifying radioactive waste generated from a nuclear power plant or the like.

  At nuclear power plants, etc., radioactive waste such as liquid waste and solid waste is generated with the operation of nuclear reactor facilities. Solidified and stored.

  The cement solidification method described above includes a method in which waste, cement, and water are directly agitated and mixed by a mixing blade in a radioactive waste solidification container (for example, see Patent Document 1 below). If cement adheres to the mixing blade, there is a possibility that the performance of the mixing blade may be deteriorated. Therefore, the mixing blade is cleaned.

  For example, the mixing blades are rotated in a cleaning tank filled with cleaning water, or the cleaning water is sprayed on the mixing blades in the cleaning tank to wash away the deposits attached to the mixing blades. The cleaning water in the cleaning tank is circulated by a circulation pipe connected to a discharge port provided on the bottom plate of the cleaning tank and a feed port provided on the side plate, and a feed pump provided in the middle of the circulation pipe. Circulating piping. The washing water flows in the washing tank and the circulation pipe, and prevents sedimentation and accumulation of sludge containing cement. That is, while the cement is solidified, the sludge is prevented from aggregating and growing into a large lump.

Japanese Patent Laid-Open No. 5-27091

  However, in the above-described technique, depending on the location of the bottom plate of the cleaning tank, the flow of the cleaning water is weak, and the sludge may settle and accumulate and aggregate to grow into a large lump. It has been investigated to install a deposition prevention plate (baffle plate) near the discharge outlet of the cleaning tank to disturb the flow of cleaning water and prevent sedimentation and accumulation of the sludge more reliably. In places other than the vicinity of the prevention plate, the flow of cleaning water could not be disturbed, and there was a possibility that the sludge settled, accumulated and aggregated to grow into a large lump. When solidified in this state, the solidified product itself becomes large, and there is a possibility that the flow rate of the washing water is reduced or the discharge port or the circulation pipe is blocked.

  For these reasons, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cleaning device that can prevent sedimentation and accumulation of sludge containing cement.

The cleaning apparatus according to the first invention for solving the above-described problem is as follows.
A cleaning device for cleaning mixing blades used in a solidifying device for solidifying waste,
A cleaning tank for storing cleaning water;
A circulation means for discharging the cleaning water from a discharge port provided in a bottom plate of the cleaning tank, and supplying the discharged cleaning water into a cleaning tank from a supply port provided in a side plate of the cleaning tank;
A feeding means that is provided in the circulation means and feeds the wash water discharged from the discharge port to the feed port side of the washing tank;
Provided in the bottom plate of the washing tank, and equipped with stirring means for stirring the washing water,
The stirring means includes a plurality of wing bodies, and a fixing means for fixing the plurality of wing bodies to the bottom plate of the cleaning tank in a rotatable manner .
The circulation means is a circulation pipe through which the cleaning water flows, and the supply port side of the circulation pipe extends in a tangential direction of the side plate of the cleaning tank in a plane. It is characterized by.
The cleaning apparatus according to the second invention for solving the above-described problem is as follows.
A cleaning device for cleaning mixing blades used in a solidifying device for solidifying waste,
A cleaning tank for storing cleaning water;
A circulation means for discharging the cleaning water from a discharge port provided in a bottom plate of the cleaning tank, and supplying the discharged cleaning water into a cleaning tank from a supply port provided in a side plate of the cleaning tank;
A feeding means that is provided in the circulation means and feeds the wash water discharged from the discharge port to the feed port side of the washing tank;
Provided in the bottom plate of the washing tank, and equipped with stirring means for stirring the washing water,
The stirring means includes a plurality of wing bodies, and a fixing means for fixing the plurality of wing bodies to the bottom plate of the cleaning tank in a rotatable manner.
The feeding port is provided at substantially the same height as the tip portions of the plurality of wing bodies.
It is characterized by that.
A cleaning device according to a third invention for solving the above-described problem is the cleaning device according to the first invention described above,
The feeding port is provided at substantially the same height as the tip portions of the plurality of wing bodies.
It is characterized by that.

A cleaning apparatus according to a fourth invention for solving the above-described problem is the cleaning apparatus according to any one of the first to third inventions described above,
The rotation center of the plurality of wing bodies is a radial center of the cleaning tank,
The plurality of wing bodies have a shape along the bottom plate of the cleaning tank.

A cleaning apparatus according to a fifth invention for solving the above-described problem is the cleaning apparatus according to any one of the first to fourth inventions described above,
The plurality of wing bodies have an arc that is convex on the opposite side of the feeding port of the cleaning tank.

A cleaning apparatus according to a sixth invention for solving the above-described problem is the cleaning apparatus according to any one of the first to fifth inventions described above,
The tip portions of the plurality of wing bodies form a flat surface facing the feeding port of the cleaning tank.

A cleaning apparatus according to a seventh invention for solving the above-described problem is the cleaning apparatus according to any one of the first to sixth inventions described above,
A pressure receiving plate is provided at the tip of the plurality of wing bodies.

A cleaning apparatus according to an eighth invention for solving the above-described problem is the cleaning apparatus according to any one of the first to seventh inventions described above,
The base end sides of the plurality of wing bodies are cut out.

A cleaning apparatus according to a ninth invention for solving the above-described problem is the cleaning apparatus according to any one of the first to eighth inventions described above,
The fixing means includes a lid provided at a rotation center of the plurality of wing bodies,
The lid body has a conical shape.

According to the cleaning device of the first invention, since the cleaning water can be stirred and disturbed by a plurality of blades, the adhering matter including cement adhering to the mixing blade is washed away by the cleaning water, and the cement Even if it becomes sludge containing, before it settles and deposits on the bottom plate in the washing tank, it is agitated by the plurality of blades and discharged from the discharge port, and is circulated into the washing tank by the circulation means and the feeding means. As a result, the sludge flows together with the washing water. This prevents the sludge from agglomerating and growing into a large lump while the cement is solidified, and the flow rate of the cleaning water is reduced, or the flow location and discharge port of the cleaning water by the circulation means and the feeding means are reduced. Etc. can be prevented. In addition, the cleaning water can flow along the side plate of the cleaning tank in the cleaning tank, and the force that the cleaning water flows acts on the plurality of wing bodies. Can be rotated well.
According to the cleaning device of the second invention, since the cleaning water can be agitated and disturbed by a plurality of blades, the adhering matter including cement adhering to the mixing blade is washed away by the cleaning water, and the cement Even if it becomes sludge containing, before it settles and deposits on the bottom plate in the washing tank, it is agitated by the plurality of blades and discharged from the discharge port, and is circulated into the washing tank by the circulation means and the feeding means. As a result, the sludge flows together with the washing water. This prevents the sludge from agglomerating and growing into a large lump while the cement is solidified, and the flow rate of the cleaning water is reduced, or the flow location and discharge port of the cleaning water by the circulation means and the feeding means are reduced. Etc. can be prevented. Moreover, the force by which washing water flows can be efficiently applied to the plurality of blade bodies, and the plurality of blade bodies can be efficiently rotated.
According to the cleaning device of the third invention, in addition to the same effects as the cleaning device of the first invention, the force that the cleaning water flows can be efficiently applied to the plurality of blade bodies. The plurality of wing bodies can be rotated efficiently.

According to the cleaning device of the fourth invention, in addition to the same effects as the cleaning device according to the first to third inventions, the cleaning of the vicinity of the bottom plate of the cleaning tank is achieved by the rotation of the plurality of blades. Since water can be agitated and disturbed, even if it becomes the sludge containing the cement, it is more reliably prevented that the sludge aggregates and grows into a large lump. It is possible to more reliably prevent the washing water from being distributed or discharged by the means or the feeding means.

According to the cleaning device of the fifth invention, in addition to the same operational effects as the cleaning device according to the first to fourth inventions, the cleaning water fed from the feeding port into the washing tub is impeller Smoothly flows from the distal end side of the body to the proximal end side, and at this time, the force due to the flow of the washing water acts from the distal end side to the proximal end side of the wing body, thereby smoothly Can be rotated. for that reason,
Even if it becomes the sludge containing the cement, the sludge is more reliably prevented from agglomerating and growing into a large lump, the flow rate of the washing water is reduced, or the washing water is circulated by the circulation means or the feeding means. It can prevent more reliably that a location, a discharge port, etc. are obstruct | occluded.

According to the cleaning device of the sixth invention, in addition to the same effects as the cleaning device according to the first to fifth inventions, the flow of cleaning water fed into the cleaning tank is provided with a plurality of blades. It can be efficiently converted into the rotational force of the body.

According to the cleaning device of the seventh invention, in addition to the same effects as the cleaning device according to the first to sixth inventions, the flow of the cleaning water fed into the cleaning tank by the feeding means Since it can be received by the wing body and the pressure receiving plate and the pressure receiving area for receiving the flow of the washing water is larger than the case without the pressure receiving plate, the plurality of wing bodies can be efficiently rotated.

According to the cleaning device of the eighth invention, in addition to having the same effect as the cleaning device according to the first to seventh inventions, it is possible to reduce the weight while ensuring the strength of the wing body, A plurality of blades can be efficiently rotated using the feeding force of the washing water by the feeding means.

According to the cleaning device of the ninth invention, in addition to the same operational effects as the cleaning device according to the first to eighth inventions, even if the sludge contains the cement, the sludge is a lid. It can suppress that it deposits on. Moreover, generation | occurrence | production of a vortex | eddy_current can be prevented and the inflow of air to a circulation means can be prevented.

It is the figure which showed typically the longitudinal cross-section of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a top view of the washing device concerning one embodiment of the present invention. It is an enlarged view of surrounding line II in Drawing 1A.

  Although one embodiment of a cleaning device concerning the present invention is described based on a drawing, the present invention is not limited only to the following embodiments explained based on a drawing.

  A cleaning apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1A, 1B, and 2. FIG.

  The cleaning apparatus according to the present embodiment is an apparatus that is attached to a solidification apparatus (not shown) that solidifies waste, and that cleans the mixing blades used in the solidification apparatus. The solidification device includes a support (not shown) that supports the mixing blade so as to be movable in the vertical direction and rotatably supports the mixing blade in the horizontal direction. The solidification device moves a drum, which is a container for solidifying radioactive waste, between a position where waste, cement, water, or the like is charged, and a position where the mixing blade supported by the support is stirred and mixed. A container moving device (not shown) is provided. The cleaning device is a cleaning device moving device (not shown) that moves between a cleaning position for cleaning the mixing blade supported by the support and a retreat position that is adjacent to the cleaning position and retracts from the cleaning position. Is provided. In addition, the mixing blade | wing 1 is provided with the some blade | wing 3 provided in the front-end | tip part (lower end part) of the shaft body 2 and the shaft body 2, as shown to FIG. 1A.

  As shown in FIGS. 1A, 1B, and 2, the cleaning apparatus 10 according to the present embodiment includes a cleaning tank 11 that stores cleaning water 101. The cleaning tank 11 is a bottomed cylindrical body having an upper opening, and includes a bottom plate 12 and a side plate (peripheral wall portion) 13 connected to the outer peripheral portion of the bottom plate 12. The bottom plate 12 has a substantially circular shape and is inclined toward the center thereof. A discharge port 12 a for discharging the cleaning water 101 in the cleaning tank 11 is provided at the approximate center of the bottom plate 12. One end of the circulation pipe 15 is connected to the discharge port 12a. The side plate 13 is provided with a supply port 13 a through which the cleaning water 101 that has circulated through the circulation pipe 15 is supplied into the cleaning tank 11. That is, the other end of the circulation pipe 15 is connected to the supply port 13 a of the cleaning tank 11. In the middle of the circulation pipe 15, a feed pump 16 is provided. Thereby, the wash water 101 circulated in the circulation pipe 15 through the discharge port 12a can be supplied to the supply port 13a side.

  The circulation pipe 15 extends in the tangential direction of the side plate 13 of the cleaning tank 11 in a plane in the vicinity of the feeding port 13 a of the cleaning tank 11. Accordingly, the cleaning water 101 can flow in the cleaning tank 11 along the side plate (peripheral wall portion) 13 of the cleaning tank 11, and the force that the cleaning water 101 flows is a plurality of blade bodies 40 described later. Therefore, the plurality of wing bodies 40 can be efficiently rotated.

  The feeding port 13a is provided at substantially the same height as the tip portions of a plurality (eight in the illustrated example) of the wing bodies 40. Thereby, the force by which the washing water 101 flows can be efficiently applied to the plurality of wing bodies 40, and the plurality of wing bodies 40 can be efficiently rotated.

  A stirring device 20 is provided on the bottom plate 12 of the cleaning tank 11. The stirring device 20 includes a plurality of wing bodies 40 and a fixture 30 that fixes the plurality of wing bodies 40 to the bottom plate 12 of the cleaning tank 11 in a rotatable manner. The fixture 30 includes a plurality of support columns 31a fixed to the bottom plate 12 around the discharge port 12a, and a fixing plate 31b fixed to the support columns 31a with bolts 39b. That is, the plurality of support columns 31a are arranged so as to surround the discharge port 12a. As a result, as shown by the arrow A in FIG. 2, the wash water 101 passes through the plurality of support columns 31a and is discharged from the discharge port 12a.

  A rotating shaft 32 is provided on the upper portion of the fixed plate 31b. A blade root 41 of a wing body 40 having a base end side upper portion and a lower portion sandwiched between bushes 35a and 35b is fixed to the rotary shaft 32 by a lock nut 38a through a press plate 36 and a washer 38b. The upper side of the lock nut 38a and the presser plate 36 is covered with a lid 33, and the lid 33 is fixed to the blade root 41 of the wing body 40 with a bolt 39a via a gasket 34. In other words, the lid body 33 is provided so as to cover the upper part of the blade root 41 of the plurality of wing bodies 40. The lid 33 has a conical shape. Thereby, even if it becomes the sludge containing the said cement, the said sludge can prevent depositing on the upper part of the cover body 33. FIG. Moreover, generation | occurrence | production of a vortex | eddy_current can be prevented and the inflow of the air to the circulation piping 15 can be prevented.

  A notch 45 is provided below the base end of the blade root 41. An oil seal portion 37 is provided in the notch portion 45. The oil seal portion 37 is sandwiched and fixed between two plate members 37a and 37b fixed to the cutout portion 45 of the blade root 41, and these plate members 37a and 37b, and is formed between the cutout portion 45 and the fixed plate 31b. And a sealing material 37c for sealing. The oil seal portion 37 is filled with a lubricant such as grease. As a result, the plurality of wing bodies 40 are rotatable about the rotation shaft 32.

  The wing body 40 described above has a plate shape. The wing body 40 includes a blade root 41 that forms the base end side, a wing portion 42 that is connected to the blade root 41, and a flat surface portion 43 that is connected to the distal end side of the wing portion 42. That is, the blade root 41 forms the base end side of the wing body 40, and the flat portion 43 forms the tip end side of the wing body 40.

  The wing portion 42 extends in the radial direction of the cleaning tank 11, and forms a circular arc that protrudes in the circumferential direction of the cleaning tank 11 on the side opposite to the feeding port 13 a of the side plate 13. Accordingly, the cleaning water 101 fed into the cleaning tank 11 from the feeding port 13a smoothly flows from the distal end side to the proximal end side of the wing body 40, and at this time, the force due to the flow of the cleaning water 101 is the wing body. Thus, the plurality of wing bodies 40 can be smoothly rotated. Therefore, even if it becomes the sludge containing the cement, it is more reliably prevented that the sludge aggregates and grows into a large lump, the flow rate of the washing water 101 is reduced, the circulation pipe 15, the feed pump 16, It can prevent more reliably that the discharge port 12a etc. are obstruct | occluded.

  A notch 44 is provided in the upper part of the base end side of the wing part 42. Thereby, weight reduction can be achieved, ensuring the intensity | strength of the wing | blade body 40, and the several wing | blade body 40 can be efficiently rotated using the feed force of the wash water 101 by the feed pump 16. FIG.

  The flat surface portion 43 is provided to be bent with respect to the wing portion 42 so as to face the feeding port 13a when the wing body 40 is positioned in the vicinity of the feeding port 13a. That is, the flat portion 43 is provided on the wing portion 42 so that the flow force of the cleaning liquid 101 fed into the cleaning tank 11 through the feeding port 13a directly acts. Thereby, the flow of the cleaning water 101 fed into the cleaning tank 11 can be efficiently converted into the rotational force of the plurality of blade bodies 40.

  The lower part 42b of the wing part 42 and the lower part 43b of the plane part 43 have a minute gap between the upper surface part 12b of the bottom plate 12 of the cleaning tank 11 and have a shape along the upper surface part 12b. That is, the lower part 42 b of the wing part 42 and the lower part 43 b of the flat part 43 can agitate the vicinity of the upper surface part 12 b of the bottom plate 12 of the cleaning tank 11.

  A pressure receiving plate 50 is provided on the flat portion 43 side of the flat portion 43 and on the flat portion 43 side of the upper portion 42a of the wing portion 42. The flat surface portion 43 is provided with a pressure receiving plate 51 for the distal end portion of the pressure receiving plate 50. The wing portion 42 is provided with a wing portion pressure receiving plate 52 of the pressure receiving plate 50. As a result, the washing water 101 fed into the washing tank 11 by the feed pump 16 hits the blade body 40 and can be received by the pressure receiving plate 50 when flowing upward of the blade body 40. That is, the flow of the cleaning water 101 fed into the cleaning tank 11 by the feed pump 16 can be received by the blade body 40 and the pressure receiving plate 50, and the flow of the cleaning water 101 is compared with the case where there is no pressure receiving plate. Since the receiving pressure area is increased, the plurality of blade bodies 40 can be efficiently rotated.

  An ultrasonic generator 61 is provided near the bottom plate 12 in the side plate (peripheral wall portion) 13 of the cleaning tank 11. Thereby, an ultrasonic wave can be propagated to the cleaning water 101 in the cleaning tank 11 and the adhering matter including cement adhering to the mixing blade 1 can be efficiently washed off. A water level meter 62 is provided on the side plate (peripheral wall portion) 13 of the cleaning tank 11. Thereby, the water level of the cleaning water 101 in the cleaning tank 11 can be measured.

  The cleaning tank 11, the support column 31a, the fixed plate 31b, the rotating shaft 32, the lid 33, the pressing plate 36, the plate members 37a and 37b, the wing body 40, the pressure receiving plate 50, and the like are made of stainless steel.

  In the present embodiment, the circulation pipe 15, the feed pump 16, and the like constitute the circulation means. The feeding pump 16 and the like constitute the feeding means. The support column 31a, the fixed plate 31b, the rotating shaft 32, the lid 33, the gasket 34, the bushes 35a and 35b, the pressing plate 36, the oil seal portion 37, the lock nut 38a, the washer 38b, The bolts 39a and 39b, the wing body 40 and the like constitute a stirring device (stirring means) 20. The support column 31a, the rotary shaft 32, the lid 33, the gasket 34, the bushes 35a and 35b, the press plate 36, the oil seal portion 37, the lock nut 38a, the washer 38b, and the bolts 39a and 39b. And the like constitute the fixture (fixing means) 30. The cleaning tank 11, the circulation pipe 15, the feed pump 16, the stirring device 20, and the like constitute the cleaning device 10.

  Next, a method of cleaning the mixing blade 1 with the cleaning water 101 using the cleaning apparatus 10 according to the present embodiment configured as described above will be described.

  First, a predetermined amount of cleaning water 101 is stored in the cleaning tank 11 of the cleaning apparatus 10, and the mixing blade 1 is immersed in the cleaning water 101 in the cleaning tank 11. The mixing blade 1 is rotated by the support as necessary, and the ultrasonic wave is propagated to the cleaning water 101 by the ultrasonic generator 61 so that the adhering matter including cement attached to the mixing blade 1 is washed away. It is. This operation is performed until the adhering matter adhering to the mixing blade 1 is completely washed away.

  The washing water 101 in the washing tank 11 is circulated into the circulation pipe 15 through the discharge port 12a of the bottom plate 12 of the washing tank 11 by the feed pump 16, and is fed into the washing tank 11 through the feed port 13a. Is done. That is, the cleaning water 101 is circulated through the cleaning tank 11 and the circulation pipe 15 by the feed pump 16. The washing water 101 flowing in this way acts on the plurality of blade bodies 40 of the stirring device 20, and the plurality of blade bodies 40 rotate. As a result, the cleaning water 101 in the vicinity of the bottom plate 12 of the cleaning tank 11 is agitated, and even if it becomes sludge containing the cement, a plurality of blades are set before being settled and deposited on the bottom plate 12 in the cleaning tank 11. It is agitated by the body 40 and discharged from the discharge port 12 a and is circulated into the cleaning tank 11 by the circulation pipe 15 and the feed pump 16, and the sludge flows together with the cleaning water 101. As a result, the sludge is prevented from agglomerating and growing into a large lump while the cement is solidified, the flow rate of the washing water 101 is reduced, and the circulation pipe 15, the feed pump 16, the discharge port 12a, and the like are blocked. Can be prevented.

  For this reason, in this embodiment, sedimentation / deposition of sludge containing cement can be prevented.

  When the amount of sludge flowing together with the cleaning water 101 increases by performing the cleaning of the mixing blade 1 a plurality of times, the cleaning water containing the sludge is discharged from a discharge port (not shown) and appropriately processed. The When the flow rate of the circulating cleaning water 101 decreases, cleaning water is newly supplied from a supply port (not shown).

  Therefore, according to this embodiment, the agitation device 20 is provided on the bottom plate 12 of the cleaning tank 11 and agitates the cleaning water 101, and the agitation device 20 rotates the plurality of wing bodies 40 and the plurality of wing bodies 40. Even if it becomes the sludge containing the cement by providing the fixture 30 that is fixed to the bottom plate 12 of the washing tank 11 as much as possible, the sludge aggregates and grows into a large lump while the cement solidifies. Therefore, it is possible to prevent the flow rate of the cleaning water 101 from being lowered and the circulation pipe 15, the feed pump 16, the discharge port 12a, and the like from being blocked.

[Other Embodiments]
In the above description, the case where the eight wing bodies 40 are provided has been described. However, the number of wing bodies is not limited to eight, and the washing water fed from the feeding port 13a into the washing tank 11 by the feeding pump 16 is used. It is only necessary that the wing body can be rotated when 101 acts.

  In the above, the case where the wing portion 42 of the wing body 40 forms an arc in the circumferential direction of the cleaning tank 11 has been described. However, the wing portion 42 of the wing body 40 is not limited to an arc shape, and may be a straight line. It is only necessary that the wing body can be rotated when the cleaning water 101 fed into the cleaning tank 11 from the supply port 13a by the supply pump 16 acts.

  In the above description, the case where the flat portion 43 is provided at the tip of the wing body 40 has been described. However, a wing body without a flat portion may be used, which is fed from the feed port 13a into the cleaning tank 11 by the feed pump 16. It is only necessary that the wing body can be rotated when the cleaning water 101 acts.

  In the above description, the case where the notched portion 44 is provided with the wing portion 42 of the wing body 40 has been described. However, a wing body without the notched portion may be used, and the feed pump 16 may feed the feed tank 13 into the cleaning tank 11. It is only necessary that the wing body can be rotated when the supplied cleaning water 101 acts.

  In the above description, the case where the eight wing bodies 40 have the same shape has been described. However, the shape of the wing body is not limited to the same shape. It is also possible to do.

  Although the case where the plurality of blade bodies 40 are rotated using the flow of the cleaning water 101 has been described above, the plurality of blade bodies may be rotated using an external force by a driving device such as a motor.

  Since the cleaning apparatus according to the present invention can prevent sedimentation and accumulation of sludge containing cement, it can be used extremely beneficially industrially.

DESCRIPTION OF SYMBOLS 1 Mixing blade 2 Shaft 3 Blade 10 Cleaning device 11 Cleaning tank 12 Bottom plate 12a Discharge port 13 Side plate (circumferential wall)
13a Feed port 15 Circulation pipe 16 Feed pump 20 Stirrer 30 Fixing tool 31a Support column 31b Fixing plate 32 Rotating shaft 33 Cover 34 Gasket 35a, 35b Bush 36 Press plate 37 Oil seal part 37a, 37b Plate material 37c Seal material 38a Lock nut 38b Washer 39a, 39b Bolt 40 Blade body 41 Blade root 42 Blade portion 43 Plane portion 44, 45 Notch portion 50 Pressure receiving plate 51 Pressure receiving plate for tip portion 52 Pressure receiving plate for blade portion 61 Ultrasonic generator 62 Water level meter 101 Wash water A Flow direction of wash water

Claims (9)

A cleaning device for cleaning mixing blades used in a solidifying device for solidifying waste,
A cleaning tank for storing cleaning water;
A circulation means for discharging the cleaning water from a discharge port provided in a bottom plate of the cleaning tank, and supplying the discharged cleaning water into a cleaning tank from a supply port provided in a side plate of the cleaning tank;
A feeding means that is provided in the circulation means and feeds the wash water discharged from the discharge port to the feed port side of the washing tank;
Provided in the bottom plate of the washing tank, and equipped with stirring means for stirring the washing water,
The stirring means includes a plurality of wing bodies, and a fixing means for fixing the plurality of wing bodies to the bottom plate of the cleaning tank in a rotatable manner .
The circulation means is a circulation pipe through which the cleaning water flows, and the supply port side of the circulation pipe extends in a tangential direction of the side plate of the cleaning tank in a plane. A cleaning device characterized by. A cleaning device for cleaning mixing blades used in a solidifying device for solidifying waste,
A cleaning tank for storing cleaning water;
A circulation means for discharging the cleaning water from a discharge port provided in a bottom plate of the cleaning tank, and supplying the discharged cleaning water into a cleaning tank from a supply port provided in a side plate of the cleaning tank;
A feeding means that is provided in the circulation means and feeds the wash water discharged from the discharge port to the feed port side of the washing tank;
Provided in the bottom plate of the washing tank, and equipped with stirring means for stirring the washing water,
  The stirring means includes a plurality of wing bodies, and a fixing means for fixing the plurality of wing bodies to the bottom plate of the cleaning tank in a rotatable manner.
The feeding port is provided at substantially the same height as the tip portions of the plurality of wing bodies.
A cleaning apparatus characterized by that. A cleaning device according to claim 1 ,
The cleaning apparatus according to claim 1, wherein the feeding port is provided at substantially the same height as tip ends of the plurality of blade bodies. A cleaning apparatus according to any one of claims 1 to 3 ,
The rotation center of the plurality of wing bodies is a radial center of the cleaning tank,
The plurality of wing bodies have a shape along the bottom plate of the cleaning tank. A cleaning apparatus according to any one of claims 1 to 4 ,
The cleaning apparatus according to claim 1, wherein the plurality of wing bodies have an arc that is convex on the opposite side of the feeding port of the cleaning tank. A cleaning apparatus according to any one of claims 1 to 5 ,
The tip of the plurality of blades has a flat surface facing the feeding port of the cleaning tank. The cleaning apparatus according to any one of claims 1 to 6 ,
A cleaning device, wherein a pressure receiving plate is provided at a tip of each of the plurality of blades. A cleaning device according to any one of claims 1 to 7 ,
2. A cleaning apparatus according to claim 1, wherein proximal ends of the plurality of wing bodies are cut out. A cleaning apparatus according to any one of claims 1 to 8 ,
The fixing means includes a lid provided at a rotation center of the plurality of wing bodies,
The cleaning device according to claim 1, wherein the lid has a conical shape.

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