Dissolving apparatus

Abstract

To effectively utilize powder that scatters during loading of a dialysis agent.SOLUTION: A melting device 10 includes: a melting tank 20; a loading port 30 which is provided above the melting tank and into which powder dialysis agent 14 is loaded; an outlet port 32 provided above the melting tank 20; capturing means for capturing the powder of dialysis agent 14 floating from the loading port 30 toward the outlet port 32; and collection means for making the powder captured by the capturing means melt into dialysis water 16.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a dissolving apparatus.

Background Art

[0002] The dialysate used for dialysis treatment is produced by dissolving a powdery dialysis agent in dialysis water inside a dissolution tank. Since powder scatters when the dialysis agent is introduced into the dissolution tank, a configuration is known in which an exhaust passage is provided above the dissolution tank so that the scattered powder can be exhausted and removed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The dialysate needs to be produced at a predetermined concentration according to the prescription. When the powder scattered during the introduction of the dialysis agent is exhausted and removed, the amount of the dialysis agent contained in the dialysate decreases and deviates from the predetermined concentration. Since the amount of scattered powder is not uniform and varies depending on the operation of introducing the dialysis agent, it is difficult to adjust the amount of dialysis water in consideration of the amount of scattered powder.

[0005] The present invention has been made in view of such problems, and one of its exemplary purposes is to provide a technique for effectively using the powder scattered during the introduction of the dialysis agent.

Means for Solving the Problems

[0006] A dissolution apparatus according to one aspect of the present invention comprises a dissolution tank, an inlet provided at the top of the dissolution tank into which powdered dialysis agent is introduced, an exhaust port provided at the top of the dissolution tank, a capturing means for capturing dust of the dialysis agent floating from the inlet towards the exhaust port, and a recovery means for dissolving the dust captured by the capturing means in dialysis water. [Effects of the Invention]

[0007] According to the present invention, a dissolution apparatus can be provided that effectively utilizes the powder scattered when dialysis agents are added. [Brief explanation of the drawing]

[0008] [Figure 1] This figure schematically shows the configuration of the dissolution apparatus according to the first embodiment. [Figure 2] This figure schematically shows the configuration of the dissolution apparatus according to the second embodiment. [Figure 3] This is a front view illustrating the configuration of the movable partition. [Figure 4] This diagram schematically illustrates the operation of the movable partition. [Figure 5] This figure schematically shows the configuration of the dissolution apparatus according to the third embodiment. [Figure 6] This figure schematically shows the configuration of the dissolution apparatus according to the fourth embodiment. [Figure 7] This diagram schematically illustrates the operation of the movable mechanism. [Figure 8] This figure schematically shows the configuration of the dissolution apparatus according to the fifth embodiment. [Figure 9] This diagram schematically illustrates the operation of the liquid level adjustment mechanism. [Modes for carrying out the invention]

[0009] Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the description, the same elements will be denoted by the same reference numerals, and redundant explanations will be omitted as appropriate. To aid in understanding the description, the dimensional ratios of each component in each drawing do not necessarily correspond to the actual dimensional ratios.

[0010] (First Embodiment) Figure 1 is a schematic diagram showing the configuration of a dissolution apparatus 10 according to the first embodiment. The dissolution apparatus 10 is a device for dissolving powdered dialysis agent 14 contained in a bag 12 in dialysis water 16 to produce dialysis fluid (for example, dialysis stock).

[0011] The dissolution apparatus 10 comprises a dissolution tank 20, a supply line 22, a discharge line 24, a supply valve 26, and a discharge valve 28.

[0012] The dissolution tank 20 is a tank that contains dialysis water 16. The dissolution tank 20 may be provided with stirring means (not shown) for dissolving the dialysis agent 14 in the dialysis water 16. The supply line 22 supplies dialysis water 16 to the dissolution tank 20. The supply line 22 is connected to a dialysis water supply device (not shown) via a supply valve 26. The dialysis water supplied from the supply line 22 to the dissolution tank 20 is, for example, reverse osmosis water (RO water). The discharge line 24 discharges the dialysis fluid produced in the dissolution tank 20. The discharge line 24 is connected to a dialysis fluid supply device (not shown) via a discharge valve 28. The dialysis fluid supply device supplies, for example, the dialysis fluid discharged from the dissolution device 10 to the dialysis machine.

[0013] The dissolution apparatus 10 further comprises an input port 30, an exhaust port 32, a capture means, and a recovery means.

[0014] The inlet 30 is located at the top of the dissolution tank 20. The inlet 30 is an opening for introducing the dialysis agent 14 into the dissolution tank 20. A removable cover 40 can be attached to the inlet 30. The cover 40 can be opened manually, for example, before introducing the dialysis agent 14, and closed manually after introducing the dialysis agent 14.

[0015] The exhaust port 32 is provided at the upper part of the dissolution tank 20. The exhaust port 32 is provided at a position different from the charging port 30 and is provided away from the charging port 30. The exhaust port 32 includes an exhaust fan 42 for discharging the air inside the dissolution tank 20 to the outside. The exhaust port 32 is preferably located above the charging port 30. The exhaust port 32 can be provided, for example, at the upper end of an exhaust tower 44 extending upward from the dissolution tank 20. The exhaust port 32 can be provided to face sideways as shown in FIG. 1. The exhaust port 32 may be directed upward or provided downward. When the exhaust port 32 is directed downward, the exhaust tower 44 can be configured to extend upward from the dissolution tank 20 and then fold back and extend downward.

[0016] The capturing means includes a partition member 34. The partition member 34 is provided between the charging port 30 and the exhaust port 32. The partition member 34 is provided to extend downward from the upper part of the dissolution tank 20. The partition member 34 faces the liquid surface 18 of the dialysis water 16 to be put into the dissolution tank 20 and forms a gap 46 therebetween. The gap 46 serves as an exhaust path from the charging port 30 to the exhaust port 32. The partition member 34 shields a part of the exhaust path from the charging port 30 to the exhaust port 32 and functions to receive and capture the dust scattered by the input of the dialysis agent 14.

[0017] The recovery means includes a jetting part 36. The jetting part 36 is provided between the charging port 30 and the exhaust port 32. The jetting part 36 is configured to jet the dialysis water 16 in a shower shape. The jetting part 36 can jet the dialysis water 16 accommodated in the dissolution tank 20, for example, by driving a pump 48 connected to the discharge line 24. The jetting part 36 may be configured to jet the dialysis water supplied from the supply line 22. The jetting part 36 jets the dialysis water toward the surface of the partition member 34 and washes away the dust of the dialysis agent 14 adhering to the surface of the partition member 34. The jetting part 36 dissolves and recovers the dust captured by the partition member 34 which is the capturing means in the dialysis water 16.

[0018] The ejection part 36 may be provided inside the exhaust tower 44. The dialysis water ejected from the ejection part 36 may wash away the dust of the dialysis agent 14 adhering to the inner surface of the exhaust tower 44.

[0019] Next, the operation of the dissolving device 10 will be described. First, a specified amount of dialysis water 16 is supplied into the dissolving tank 20. By opening the supply valve 26, the dialysis water 16 can be supplied from the supply line 22 to the dissolving tank 20. Next, the exhaust fan 42 is operated to generate an air flow from the inlet 30 toward the exhaust port 32. Next, the cover 40 is opened and the dialysis agent 14 is introduced through the inlet 30. At this time, due to the introduction of the dialysis agent 14, the fine dust contained in the dialysis agent 14 floats or scatters inside the dissolving tank 20. The floating or scattered dust is guided by the air flow from the inlet 30 toward the exhaust port 32 to the partition member 34 and the gap 46, and adheres to the surface of the partition member 34 or collides with the liquid surface 18 near the gap 46. The dust adhering to the surface of the partition member 34 is washed away by the shower-like dialysis water ejected from the ejection part 36. As a result, most of the dust floating or scattering inside the dissolving tank 20 will be dissolved in the dialysis water 16. After the introduced dialysis agent 14 is completely dissolved in the dialysis water 16, the produced dialysis stock solution can be supplied to the outside through the discharge line 24.

[0020] According to the present embodiment, by forming an air flow from the inlet 30 toward the exhaust port 32 inside the dissolving tank 20, it is possible to suppress the dust scattering inside the dissolving tank 20 from leaking out from the inlet 30 to the outside. As a result, the possibility that the operator introducing the dialysis agent 14 inhales the dust can be reduced, and the safety of the operation can be improved.

[0021] According to this embodiment, by providing dust capture and recovery means between the input port 30 and the exhaust port 32, it is possible to suppress dust leakage to the outside from the exhaust port 32. Furthermore, by providing dust capture and recovery means, dust scattered inside the dissolution tank 20 can be dissolved in the dialysis water, and the dialysis agent 14 that has been introduced can be used without waste. Since substantially the entire amount of the introduced dialysis agent 14 can be used, it is possible to produce a dialysis stock solution with an accurate concentration that matches the prescription.

[0022] (Second Embodiment) Figure 2 is a schematic diagram showing a dissolution apparatus 10A according to the second embodiment. In the second embodiment, the dissolution apparatus 10A further includes a movable partition 50 that moves up and down according to the height of the liquid level 18, and an opening 52 that serves as an exhaust path is provided at the lower part of the movable partition 50. The second embodiment will be described below, focusing on the differences from the above-described embodiment, and the explanation of common points will be omitted as appropriate.

[0023] The dissolution apparatus 10A comprises a dissolution tank 20, a supply line 22, a discharge line 24, a supply valve 26, a discharge valve 28, an inlet 30, an exhaust port 32, a capture means, and a recovery means. The capture means comprises a partition member 34 and a movable partition 50. The recovery means comprises a jetting section 36.

[0024] The movable partition 50 is installed between the inlet 30 and the exhaust port 32. The movable partition 50 is configured to move up and down along the partition member 34. The movable partition 50 has an opening 52 that is part of the exhaust path from the inlet 30 to the exhaust port 32. The opening 52 is located at the bottom of the movable partition 50 and is situated near the lower end of the movable partition 50. The movable partition 50 has a float 54 and is configured to float on the liquid surface 18 of the dialysis water 16. The buoyancy of the float 54 is adjusted so that the opening 52 of the movable partition 50 is positioned just above the liquid surface 18.

[0025] Figure 3 is a schematic front view showing the configuration of the movable partition 50. The partition member 34 is provided with a guide rail 56 that extends in the vertical direction. The movable partition 50 is configured to slide vertically along the guide rail 56. A stopper 58 is provided at the top of the partition member 34, which limits the upward range of motion of the movable partition 50. The stopper 58 is positioned, for example, to prevent the opening 52 of the movable partition 50 from moving above the lower end of the partition member 34.

[0026] Figure 4 is a schematic diagram showing the operation of the movable partition 50. Figure 4 shows the case where the height of the liquid level 18 of the dialysis water 16 is lower than in Figure 2. For example, when supplying dialysis water 16 to the dissolution tank 20 while adding the dialysis agent 14, the liquid level 18 inside the dissolution tank 20 will be lower until the dialysis water 16 reaches a specified amount, causing a large gap 46 to open between the partition member 34 and the liquid level 18. In this embodiment, since the movable partition 50 moves downward in accordance with the height of the liquid level 18, the gap 46 can be closed by the movable partition 50, and the opening 52 can be positioned in a limited area near the liquid level 18. Dust moving from the inlet 30 to the exhaust port 32 will try to pass through the opening 52 near the liquid level 18, so the partition member 34 and the movable partition 50 can efficiently capture the dust. The dust captured by the partition member 34 and the movable partition 50 can be washed away by the shower-like dialysis water sprayed from the spraying part 36. Furthermore, since dust can be made to collide with the liquid surface 18 near the opening 52, the dust capture efficiency can be improved.

[0027] According to this embodiment, by providing a movable partition 50 that can move vertically according to the height of the liquid level 18 of the dialysis water 16, the position and size of the opening 52, which serves as the exhaust path, can be kept constant with respect to the liquid level 18, even if the height of the liquid level 18 changes. As a result, even if the height of the liquid level 18 changes, dust moving from the inlet 30 to the exhaust port 32 can be efficiently captured, and the dialysis agent 14 that has been introduced can be used without waste.

[0028] Alternatively, the movable partition 50 may be configured to move up and down by a drive mechanism such as a motor, instead of being moved up and down by the buoyancy of the floating body 54. For example, the drive mechanism may be configured to move the movable partition 50 up and down according to the measurement result of a level sensor that measures the height of the liquid surface 18 of the dialysis water 16.

[0029] (Third embodiment) Figure 5 is a schematic diagram showing the configuration of the dissolution apparatus 10B according to the third embodiment. In the third embodiment, the dissolution apparatus 10B further includes a filter 60 provided inside the exhaust tower 44. The filter 60 functions as a capture means for capturing dust directed toward the exhaust port 32. The third embodiment will be described below, focusing on the differences from the above-described embodiment, and the common points will be omitted as appropriate.

[0030] The dissolution apparatus 10B comprises a dissolution tank 20, a supply line 22, a discharge line 24, a supply valve 26, a discharge valve 28, an inlet 30, an exhaust port 32, a capture means, and a recovery means. The capture means comprises a partition member 34 and a filter 60. The recovery means comprises a first ejection section 36a and a second ejection section 36b.

[0031] The filter 60 is installed inside the exhaust tower 44. The filter 60 is configured to capture dust passing through the inside of the exhaust tower 44. The filter 60 is, for example, a nonwoven fabric filter. The filter 60 is preferably water-repellent, and may be composed of a filter whose surface is coated with a water-repellent resin material such as fluororesin.

[0032] The first nozzle 36a and the second nozzle 36b are located between the inlet 30 and the exhaust port 32. The first nozzle 36a is located on the outside of the exhaust tower 44 and sprays a shower-like stream of dialysis water toward the partition member 34. The first nozzle 36a washes away dust from the dialysis agent 14 adhering to the surface of the partition member 34. The second nozzle 36b is located on the inside of the exhaust tower 44 and sprays a shower-like stream of dialysis water toward the filter 60. The second nozzle 36b washes away dust from the dialysis agent 14 adhering to the filter 60. The first nozzle 36a and the second nozzle 36b dissolve the dust captured by the partition member 34 or the filter 60, which are the capture means, in the dialysis water 16 and recover it.

[0033] According to this embodiment, by further providing a filter 60 as a capture means, dust moving from the inlet 30 to the exhaust port 32 can be efficiently captured. This prevents dust from leaking out of the exhaust port 32. In addition, by providing a second ejection part 36b, the dust captured by the filter 60 can also be recovered, and the dialysis agent 14 that has been introduced can be used without waste.

[0034] (Fourth embodiment) Figure 6 is a schematic diagram showing the configuration of the dissolution apparatus 10C according to the fourth embodiment. In the fourth embodiment, the dissolution apparatus 10C further includes a movable mechanism 62 that moves a filter 60, which is provided inside the exhaust tower 44, in the vertical direction. The filter 60 functions as a capture means for capturing dust directed toward the exhaust port 32. The fourth embodiment will be described below, focusing on the differences from the above-described embodiments, and the common points will be omitted as appropriate.

[0035] The dissolution apparatus 10C comprises a dissolution tank 20, a supply line 22, a discharge line 24, a supply valve 26, a discharge valve 28, an inlet 30, an exhaust port 32, a capture means, and a recovery means. The capture means includes a filter 60. The recovery means includes a movable mechanism 62.

[0036] The filter 60 is installed inside the exhaust tower 44. The filter 60 is attached to a movable cylinder 64 that is slidable vertically relative to the exhaust tower 44. The movable cylinder 64 is slidable vertically along the inner surface of the exhaust tower 44. The movable mechanism 62 is configured to move the movable cylinder 64 vertically. The movable mechanism 62 includes, for example, a motor for moving the movable cylinder 64. The movable mechanism 62 may be configured to be moved up and down manually.

[0037] Figure 7 is a schematic diagram showing the operation of the movable mechanism 62. By operating the movable mechanism 62 and moving the filter 60 downward, the filter 60 is positioned below the liquid surface 18 of the dialysis water 16 and becomes submerged in the dialysis water 16. Submerging the filter 60 in the dialysis water 16 allows the dialysis agent 14 adhering to the filter 60 to dissolve in the dialysis water 16. The movable mechanism 62 can promote the dissolution of the dialysis agent 14 adhering to the filter 60 by moving the filter 60 up and down while it is submerged in the dialysis water 16.

[0038] Next, the operation of the dissolution apparatus 10C will be described. First, as shown in Figure 6, the filter 60 is positioned upward. Next, a specified amount of dialysis water 16 is supplied into the dissolution tank 20. At this time, the filter 60 is positioned above the liquid surface 18 of the dialysis water 16, and a gap 46 is formed between the liquid surface 18 and the filter 60. Next, the exhaust fan 42 is operated to generate an airflow from the inlet 30 to the exhaust port 32. Next, the cover 40 is opened and the dialysis agent 14 is added from the inlet 30. Fine dust contained in the dialysis agent 14 floats or scatters inside the dissolution tank 20 and is captured by the filter 60 by the airflow from the inlet 30 to the exhaust port 32. After a predetermined time has elapsed since the addition of the dialysis agent 14, the operation of the exhaust fan 42 is stopped. After that, as shown in Figure 7, the filter 60 is moved downward, submerging the filter 60 in the dialysis water 16, and the dust captured by the filter 60 is dissolved in the dialysis water 16. As a result, most of the dust suspended or scattered inside the dissolution tank 20 is dissolved in the dialysis water 16. After the added dialysis agent 14 is completely dissolved in the dialysis water 16, the prepared dialysis stock can be supplied to the outside through the discharge line 24.

[0039] According to this embodiment, by further providing a filter 60 as a capture means, dust moving from the inlet 30 to the exhaust port 32 can be efficiently captured. In addition, by providing a movable mechanism 62 that moves the filter 60 up and down, the filter 60 can be submerged in the dialysis water 16, and the dust captured by the filter 60 can be recovered. As a result, the dialysis agent 14 that is introduced can be used without waste.

[0040] (Fifth embodiment) Figure 8 is a schematic diagram showing the configuration of the dissolution apparatus 10D according to the fifth embodiment. In the fifth embodiment, the dissolution apparatus 10D further includes a liquid level adjustment mechanism 70 that raises or lowers the height of the liquid level 18 of the dialysis water 16 in the dissolution tank 20. The liquid level adjustment mechanism 70 functions as a collection means for collecting dust captured by the filter 60. The fifth embodiment will be described below, focusing on the differences from the embodiments described above, and the common points will be omitted as appropriate.

[0041] The dissolution apparatus 10D comprises a dissolution tank 20, a supply line 22, a discharge line 24, a supply valve 26, a discharge valve 28, an inlet 30, an exhaust port 32, a capture means, and a recovery means. The capture means includes a filter 60. The recovery means includes a liquid level adjustment mechanism 70.

[0042] The liquid level adjustment mechanism 70 acquires the measurement result of a level sensor 72 that measures the height of the liquid level 18 of the dialysis water 16. The liquid level adjustment mechanism 70 controls the supply valve 26 according to the measurement result of the level sensor 72 and adjusts the liquid level 18 of the dialysis water 16 to the desired height. When the dialysis agent 14 is added and the exhaust fan 42 is operating, the liquid level adjustment mechanism 70 adjusts the height of the liquid level 18 of the dialysis water 16 so that the liquid level 18 is below the filter 60. For example, a smaller amount of dialysis water 16 than the specified amount required for the amount of dialysis agent 14 added may be supplied into the dissolution tank 20. When a predetermined time has elapsed since the addition of the dialysis agent 14 and the exhaust fan 42 is not operating, the liquid level adjustment mechanism 70 adjusts the height of the liquid level 18 of the dialysis water 16 so that the liquid level 18 is above the filter 60.

[0043] Figure 9 is a schematic diagram showing the operation of the liquid level adjustment mechanism 70. When the exhaust fan 42 is stopped, the liquid level adjustment mechanism 70 opens the supply valve 26 and raises the liquid level 18 of the dialysis water 16. By raising the liquid level 18 of the dialysis water 16, the dialysis water 16 is brought into contact with the filter 60, and the dust of the dialysis agent 14 captured by the filter 60 is dissolved in the dialysis water 16. For example, the liquid level 18 of the dialysis water 16 can be raised by supplying additional dialysis water 16 so that the amount of dialysis water 16 inside the dissolution tank 20 becomes a specified amount. The height of the filter 60 can be adjusted so that the filter 60 is submerged when the amount of dialysis water 16 inside the dissolution tank 20 is a specified amount, and a gap 46 is formed when the amount is less than the specified amount (for example, half the specified amount).

[0044] The present invention has been described above based on examples. Those skilled in the art will understand that the present invention is not limited to the above embodiments, that various design changes are possible, and that various modifications are possible, and that such modifications also fall within the scope of the present invention.

[0045] Several embodiments of the present invention will be described below.

[0046] A first aspect of the present invention is a dissolution apparatus comprising: a dissolution tank; an inlet provided at the top of the dissolution tank into which powdered dialysis agent is introduced; an exhaust port provided at the top of the dissolution tank; a capturing means for capturing dust of the dialysis agent floating from the inlet toward the exhaust port; and a recovery means for dissolving the dust captured by the capturing means in dialysis water. According to the first aspect, dust scattered when powdered dialysis agent is introduced can be captured and recovered and dissolved in dialysis water, thus enabling efficient and waste-free use of the introduced dialysis agent.

[0047] A second aspect of the present invention is a dissolution apparatus according to the first aspect, wherein the capture means comprises a partition member provided between the inlet and the exhaust port, forming a gap that serves as an exhaust path between the partition member and the liquid surface of the dialysis water in the dissolution tank. According to the second aspect, the exhaust path from the inlet to the exhaust port can be narrowed by the partition member, thereby increasing the dust capture efficiency of the partition member.

[0048] A third aspect of the present invention is a dissolution apparatus according to the first or second aspect, wherein the capture means is configured to be movable vertically according to the height of the liquid level of the dialysis water in the dissolution tank. According to the third aspect, by making the capture means movable vertically according to the height of the liquid level, the capture means can be positioned near the liquid level, and the dust capture efficiency by the capture means can be increased.

[0049] A fourth aspect of the present invention is a dissolving apparatus according to any one of the first to third aspects, wherein the capture means comprises a filter provided in the exhaust path toward the exhaust port. According to the fourth aspect, the dust capture efficiency can be increased by providing a filter in the middle of the exhaust path.

[0050] A fifth aspect of the present invention is a dissolution apparatus according to any one of the first to fourth aspects, wherein the recovery means comprises a spraying unit that sprays dialysis water in a shower-like manner toward the capture means. According to the fifth aspect, by spraying dialysis water in a shower-like manner toward the capture means, dust of the dialysis agent captured by the capture means can be efficiently dissolved in the dialysis water and recovered.

[0051] A sixth aspect of the present invention is a dissolution apparatus according to any one of the first to fifth aspects, wherein the recovery means includes a movable mechanism that moves the capture means vertically to bring it into contact with the dialysis water in the dissolution tank. According to the sixth aspect, by moving the capture means vertically, the capture means can be separated from the dialysis water when dust is scattered to increase the dust capture efficiency, and the capture means can be brought into contact with the dialysis water when dust is collected to increase the dust collection efficiency.

[0052] A seventh aspect of the present invention is a dissolution apparatus according to any one of the first to sixth aspects, wherein the recovery means is equipped with a liquid level adjustment mechanism that raises and lowers the liquid level of the dialysis water in the dissolution tank to bring the capture means into contact with the dialysis water. According to the seventh aspect, by raising and lowering the liquid level, the capture means can be separated from the dialysis water when dust is scattered to increase the dust capture efficiency, and the capture means can be brought into contact with the dialysis water when dust is collected to increase the dust collection efficiency. [Explanation of Symbols]

[0053] 10...Dissolving device, 14...Dialysis agent, 16...Dialysis water, 18...Liquid level, 20...Dissolving tank, 30...Inlet, 32...Exhaust port, 34...Partition member, 36...Spray part, 46...Gap, 50...Movable partition, 52...Opening, 62...Movable mechanism, 60...Filter, 64...Movable cylinder, 70...Liquid level adjustment mechanism.

Claims

1. Dissolution tank and An inlet is provided at the top of the dissolution tank into which powdered dialysis agent is introduced, An exhaust port is provided at the top of the dissolution tank, A capturing means for capturing the dialysis agent dust floating from the inlet toward the exhaust port, The collection means includes a recovery means for dissolving the dust captured by the collection means into dialysis water. Melting equipment.

2. The capture means is provided between the input port and the exhaust port and includes a partition member that forms a gap between it and the liquid surface of the dialysis water in the dissolution tank, which serves as an exhaust path. The dissolution apparatus according to claim 1.

3. The capturing means is configured to be movable vertically according to the height of the liquid level of the dialysis water in the dissolution tank. The dissolution apparatus according to claim 1.

4. The capturing means includes a filter provided in the exhaust path leading to the exhaust port. The dissolution apparatus according to claim 1.

5. The recovery means includes a nozzle that sprays dialysis water in a shower-like manner toward the capture means. The dissolution apparatus according to any one of claims 1 to 4.

6. The recovery means includes a movable mechanism that moves the capture means vertically to bring it into contact with the dialysis water in the dissolution tank. The dissolution apparatus according to any one of claims 1 to 4.

7. The recovery means includes a liquid level adjustment mechanism that raises and lowers the liquid level of the dialysis water in the dissolution tank to bring the capture means into contact with the dialysis water. The dissolution apparatus according to any one of claims 1 to 4.

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