WO2019053937A1

WO2019053937A1 - Solid chemical-dissolving apparatus

Info

Publication number: WO2019053937A1
Application number: PCT/JP2018/016731
Authority: WO
Inventors: 廣田　達哉; 真二郎野間; ゆうこ丸尾; 藤田　浩史; 太輔五百崎
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-09-14
Filing date: 2018-04-25
Publication date: 2019-03-21
Also published as: CN111093815A; JPWO2019053937A1

Abstract

A solid chemical-dissolving apparatus (100) is provided with: a solid chemical tank (21) which has at least one connecting hole (21A) in the bottom surface (21Y) and/or a peripheral wall (21X); and a dispersing material (F) which has dispersed gaps therebetween, is loaded onto the bottom surface (21Y) inside the peripheral wall (21X) so as to cover at least one connecting hole (21A), and is for dispersing the water (W) being treated inside the solid chemical tank (21). The solid chemical tank (21) has an internal space (IS), the upper end of which is open inside the peripheral wall (21X) so that a solid chemical (CA) can be charged on top of the dispersing material (F). The dispersing material (F) supports the solid chemical (CA) when charged in the internal space (IS), but allows the water (W) being treated to contact the solid chemical (CA) and allows the water (W) being treated, in which the solid chemical (CA) has dissolved, to flow to at least one connection hole (21A).

Description

Solid drug dissolving device

The present invention relates to a solid drug dissolving apparatus for dissolving a solid drug in water to be treated.

BACKGROUND ART Conventionally, development of a solid drug dissolving apparatus for dissolving a solid drug in water to be treated has been carried out. Some conventional solid drug dissolution apparatuses support a solid drug by a solid drug support. In this case, the solid drug support portion is provided with a large number of communication holes. Therefore, the water to be treated which has passed through the communication holes from the bottom to the top contacts the solid drug. Thus, the solid drug dissolves in the water to be treated (see Patent Document 1).

Japanese Patent Publication No. 9-508579

According to the conventional solid drug dissolution apparatus, the solid drug is merely placed on the solid drug support. Therefore, for example, if the solid drug is in the form of a tablet, the displacement of the solid drug occurs due to the flow of the water to be treated during use. Also, for example, if the solid drug is in the form of granules, the solid drug may flow out of the solid drug dissolving apparatus. As a result, the concentration of the drug with respect to the water to be treated may vary due to the variation in the method of dissolving the solid drug.

The present invention has been made in view of the problems of the prior art. And the object of the present invention is to provide a solid medicine dissolution apparatus which can control that the concentration to the treated water of a medicine changes.

In order to solve the above problems, a solid drug dissolving apparatus according to an aspect of the present invention is provided with a container part whose upper end can be opened, and the inside of the container part, and extends upward from the bottom surface and the bottom surface A solid medicine tank including a peripheral wall portion surrounding an upper space of the bottom surface portion and having at least one communication hole in at least one of the bottom surface portion and the peripheral wall portion; and from below the bottom surface portion to the bottom surface portion An inlet channel which is connected and guides the water to be treated from the outside of the container portion to the inside of the solid medicine tank, and the water to be treated which has fallen from the inside of the solid medicine tank via the at least one communication hole It is placed on the bottom surface portion inside the peripheral wall portion so as to cover the outlet flow channel leading to the outside of the container portion and the at least one communication hole, and has a dispersed gap, In the solid medicine tank A dispersion material for dispersing the water to be treated, and the solid drug tank has an internal space whose upper side is opened inside the peripheral wall so that a solid medicine can be introduced onto the dispersion material. And the dispersion material supports the solid drug when it is introduced into the internal space, but the water to be treated contacts the solid drug, and the water to be treated in which the solid drug is dissolved Are allowed to flow to the at least one communication hole.

ADVANTAGE OF THE INVENTION According to this invention, it can suppress that dispersion | variation arises in the density | concentration with respect to the to-be-processed water of a chemical | medical agent.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view of the solid medicine melt | dissolution apparatus of Embodiment 1 of this invention. It is a disassembled perspective view of the solid medicine tank of the solid medicine dissolving apparatus of Embodiment 1 of this invention, a solid medicine, and a dispersing agent. It is a longitudinal cross-sectional view of the solid medicine dissolution apparatus and its periphery structure of Embodiment 2 of the present invention. It is a longitudinal cross-sectional view of the solid medicine dissolving apparatus and its periphery structure of Embodiment 3 of the present invention.

Hereinafter, the solid medicine dissolving apparatus of the embodiment will be described with reference to the drawings. In the following embodiments, the parts denoted by the same reference numerals perform the same function as each other unless otherwise specified, even if there are some differences in the shapes in the drawings. I assume.

Embodiment 1
Hereinafter, the solid medicine dissolving apparatus 100 according to Embodiment 1 will be described with reference to FIGS. 1 and 2.

As can be seen from FIG. 1, the solid medicine dissolving device 100 of the present embodiment is provided with a container portion 12. The container 12 includes a container body 2 whose upper end is opened, and a lid 1 removably attached to the container body 2 so as to close the opening at the upper end of the container body 2. . The container body 2 has a cylindrical peripheral wall and a disk-like bottom. The lid 1 has a disk-like upper surface and a cylindrical peripheral wall which hangs down from the circumferential surface of the upper surface and is slightly larger than the cylindrical peripheral wall of the container body 2. However, the container part 12 may have any shape as long as it can form a space inside.

According to the present embodiment, the solid drug CA can be introduced into the solid drug tank 21 without holding the solid drug CA by hand only by removing the lid 1 from the container body 2. Therefore, when the solid medicine CA is introduced into the solid medicine dissolving apparatus 100, it is possible to prevent the hand of the worker from being adversely affected.

In the space inside the container portion 12, a solid medicine tank 21, an introduction channel 11A, and a lead channel 11C are provided.

The solid medicine tank 21 includes a disc-like bottom surface 21Y and a cylindrical peripheral wall 21X extending upward from the outer peripheral end of the bottom 21Y and surrounding a space above the bottom 21Y. However, the bottom portion 21Y of the solid medicine tank 21 may have any shape such as a square plate or the like as long as the shape is such that the dispersant F described later can be placed. In addition, the peripheral wall portion 21X may have any shape such as a rectangular cylindrical shape. In addition, the solid medicine tank 21 can not distinguish between the peripheral wall 21X and the bottom surface 21Y, such as a shape of a partially cut spherical shell, a shape of a wine glass, or a shape of a bathtub. It may be an integral structure. For example, the solid medicine tank 21 may include a bottom 21Y having a concave lens shape and a peripheral wall 21X having a cylindrical curved surface continuous with an end of the concave lens.

The solid medicine tank 21 has at least one communication hole 21A in the bottom surface 21Y, which penetrates the bottom surface 21Y in the thickness direction. In the present embodiment, at least one communication hole 21A is provided in the bottom portion 21Y. However, at least one communication hole 21A may be provided on the lower side of the peripheral wall 21X as long as it is covered by the dispersion material F described later. The number of at least one communication hole is eight in the present embodiment, but may be any number.

Inside the solid medicine tank 21, a dispersion material F having a thickness t is provided. The dispersion material F has a dispersed gap. Dispersing material F supports granular solid drug CA. The dispersion material F disperses the to-be-treated water W introduced in a concentrated manner in one place in the solid medicine tank 21 by letting the dispersion material F pass through each of the gaps dispersed in the to-be-treated water W. The dispersion material F also has an effect of rectifying the water to be treated W in the solid medicine tank 21. The dispersion material F is placed on the bottom surface 21Y inside the peripheral wall 21X so as to cover each of the at least one communication hole 21A. The solid medicine tank 21 has an internal space IS opened on the upper side inside the peripheral wall 21X so that the solid medicine CA can be introduced onto the dispersion material F. Therefore, the solid medicine CA can be easily introduced from the outside of the container body 2 into the internal space IS on the dispersion material F only by removing the lid 1 from the container body 2. The dispersion material F supports the solid drug CA when being charged into the internal space IS, but the treated water W contacts the solid drug CA, and the treated water W in which the solid drug CA is dissolved is at least It is allowed to flow to one communication hole 21A.

A communication space 11B is formed at a position above and to the side of the solid medicine tank 21 in the container portion 12. The communication space 11B communicates the internal space IS with the outlet flow passage 11C. Therefore, air can freely move between the internal space IS and the outlet flow passage 11C via the communication space 11B. Therefore, the air inside the container 12 is prevented from flowing out of the container 12 together with the water W to be treated.

Dispersing material F in the present embodiment is a gravel made of a group of particles, so dispersing material F can be easily obtained using existing materials. In the present embodiment, since the solid drug CA is a solid chlorine drug that exhibits acidity when dissolved in the water to be treated W, the dispersing agent F exhibits alkalinity when dissolved in the water to be treated W for the purpose of neutralization. A member may be used. In this case, the member that exhibits alkalinity when dissolved in the water to be treated W may include, for example, at least one of a group of readily available cement pieces, a group of coral stones, and a group of limestones. According to this, by adjusting the amount of the dispersing material F, the to-be-treated water W that has become acidic can be brought closer to neutrality.

The dispersant F has a dispersed gap, and it is possible to disperse the water to be treated W so that the water to be treated W can be uniformly brought into contact with almost the entire lower surface of the solid medicine CA. It may be The dispersion material F may be, for example, a laminated structure of a plurality of non-woven fabrics or a laminated structure of a plurality of woven fabrics. The dispersion material F may be, for example, a group of deposited granular members, a three-dimensional fibrous structure in which fibers are intertwined, or a porous member having a structure similar to a sponge. Dispersing agent F is a natural material such as a group of filter media or a group of sand grit including a group of sand grains or a group of stone grains, as long as the treated water W can be dispersed by having dispersed gaps. It may be In addition, the individual members constituting the dispersion material F may be man-made materials such as metal, plastic, resin, or fiber. That is, the dispersant F has dispersed gaps, can support the granular solid drug CA, and by dispersing the water to be treated W, almost all over the lower part of the granular solid drug CA. Any material may be used as long as it can be brought into contact with the water W to be treated.

According to the dispersant F described above, the solid medicine CA can be uniformly dissolved in the water to be treated W by uniformly contacting the dispersed water to be treated W with the entire lower surface of the solid medicine CA. Moreover, by using the above-mentioned dispersing agent F, it can suppress that granular solid medicine CA flows out of solid medicine dissolution device 100 at a stretch. As a result, it becomes easy to maintain the dissolution concentration of the drug in the water to be treated W almost constant.

As can be seen from FIG. 2, the dispersant F and the solid drug CA are introduced from the opening at the upper end of the solid drug tank 21 onto the bottom portion 21Y. Although both the dispersant F and the solid drug CA are drawn as one block in FIG. 2 for the sake of convenience, in actuality, they are composed of a large number of particles in which individual particles can be dispersed.

As can be seen from FIG. 2, in the present embodiment, the peripheral wall portion 21X of the solid medicine tank 21 is a cylinder as described above. Further, the bottom surface portion 21Y of the solid medicine tank 21 is a disk through which a virtual central axis of a cylinder formed by the peripheral wall portion 21X passes a virtual central point. Therefore, in the present embodiment, eight communication holes 21A are provided on the bottom surface 21Y along the circumference of the disk-shaped bottom surface 21Y at circumferential angles of 45 degrees. The eight communication holes 21A are an example of the plurality of communication holes 21A. That is, the plurality of communication holes 21A are provided along the circumference of the disc at equal angular intervals at the same circumferential angle. Therefore, the water to be treated W can be brought into contact with the entire lower surface of the solid medicine CA as uniformly as possible. The number of the communication holes 21A is the same as that of the bottom surface portion at the same circumferential angle, such as two, three, four, five, six, nine, ten, or twelve. Any number may be provided as long as it is provided along the circumference of the disc constituting 21Y. Moreover, it is preferable that each of the plurality of communication holes 21A have the same shape. Each of the plurality of communication holes 21A has the same circular cross section in the present embodiment. However, each of the plurality of communication holes 21A may be a long hole extending along the radial direction, an arc-like hole extending along the circumferential direction, or the like.

In the internal space IS inside the solid medicine tank 21, the solid medicine CA is introduced onto the dispersion material F. The solid drug CA is a solid chlorine drug in the present embodiment. Chlorinated isocyanuric acid is used as a solid chlorine agent. The solid drug CA is a chlorine-based solid drug that exhibits acidity when dissolved in the water to be treated W, as described above. The solid drug CA is, in the present embodiment, a granular drug.

In the present embodiment, the lid portion 1 independent of the container body portion 2 is provided, and the inner side of the solid medicine tank 21 in the solid medicine dissolving device 100 in a state where the lid portion 1 is removed from the container body 2 The solid drug CA is introduced from above into the internal space IS of However, if the container 12 can be charged with the solid medicine CA from the upper side into the internal space IS inside the solid medicine tank 21, the lid 1 and the container body 2 are integrated, the lid 1 May have an openable door. In this case, in a state where the door of the lid 1 is opened, the solid medicine CA passes through the door from above the lid 1 and is introduced into the internal space IS inside the solid medicine tank 21. That is, as long as the container part 12 has a structure which can open an upper end, ie, a structure by which the opening of an upper end is opened and closed, it may be anything.

A mesh member 30 is provided between the dispersion material F and the bottom surface portion 21Y. The mesh member 30 has a group of openings whose size is smaller than at least one communication hole 21A. The mesh member 30 is provided to cover all of the at least one communication hole 21A. The mesh member 30 suppresses the passage of each particle constituting the dispersant F, but has a size that allows the water to be treated W to pass.

In the present embodiment, the dispersion material F is a group of granular members such as gravel. Therefore, the mesh member 30 can suppress the flow of the particulate material of a part of the dispersion material F from the at least one communication hole 21A. However, if the size of the communication hole 21A is smaller than the size of one particle constituting the dispersion material F, that is, if one particle constituting the dispersion material F can not pass through the communication hole 21A, the mesh member 30 is It does not have to be provided.

In the present embodiment, at least the peripheral wall portion of the container portion 12 and the peripheral wall portion 21X of the solid medicine tank 21 are formed of a transparent material. Therefore, the remaining amount of the solid drug CA can be easily grasped from the outside of the container portion 12.

As can be seen from FIG. 1, the introduction channel 11A is connected to the bottom surface 21Y from below the bottom surface 21Y. The introduction channel 11A is a cylindrical space inside the cylindrical channel 11 connected to the lower surface of the bottom surface 21Y. When the solid medicine dissolving apparatus 100 is used, the introduction channel 11A guides the water to be treated W from the outside of the container unit 12 to the inside of the solid medicine tank 21. The introduction flow passage 11A is connected to the circular opening of the bottom surface portion 11Y so that the virtual central axis of the cylindrical introduction flow passage 11A passes the position of the virtual center point of the disk constituting the bottom surface portion 21Y. The water to be treated W flowing through the introduction channel 11A flows into the solid medicine tank 21. In the solid medicine tank 21, the water to be treated W enters the dispersed gap between the particles constituting the dispersion material F and is dispersed. Thereby, the to-be-processed water W contacts the whole lower surface of solid medicine CA substantially uniformly.

On the water surface of the water to be treated W when using the solid medicine dissolving apparatus 100, a part of the lower side of the solid medicine CA is immersed in the water to be treated W, but a part of the upper side of the solid medicine CA is the water to be treated W It is positioned at a certain height that is not immersed in water. Therefore, at the time of use of solid drug dissolution apparatus 100, solid drug CA dissolves uniformly in treated water W.

On the other hand, the water surface of the water to be treated W when the solid medicine dissolving apparatus 100 is not used is positioned lower than the lower surface of the bottom portion 21Y. Therefore, when the solid drug dissolving apparatus 100 is not used, the solid drug CA does not dissolve in the water to be treated W. Therefore, due to dissolution of solid drug CA in treated water W when solid drug dissolution apparatus 100 is not used, the dissolution concentration of the drug in solid drug CA is temporary at the beginning of the start of use of solid drug dissolution apparatus 100. It is prevented that it becomes uneven.

The to-be-treated water W in contact with the solid drug CA passes through the at least one communication hole 21A, and falls into the lower outlet flow passage 11C of the at least one communication hole 21A. The lead-out flow passage 11C is a space inside the container body 2 and a space outside the pipe 11. The outlet channel 11C guides the water to be treated W, which has fallen from the inside of the solid medicine tank 21 via the at least one communication hole 21A, to the outside of the container portion 12.

According to the solid medicine dissolving apparatus 100 of the present embodiment, the treatment water W can be brought into contact with the entire solid medicine CA when the clearance in which the dispersion material F is dispersed disperses the water to be treated W. As a result, it is possible to suppress the occurrence of variations in the concentration of the drug relative to the water W to be treated. In addition, by changing the total thickness t of the dispersing material F, that is, by increasing the amount of a group of particles constituting the dispersing material F, to adjust the dissolution concentration of the drug in the water W to be treated Can.

In the present embodiment, granular or granular drugs are used as the solid drug CA. However, instead of granular solid drug, at least one solid drug that can be stacked may be used. In this case, the solid drug is, for example, a solid drug solidified in a disk shape or the like. The solid drug CA may be made of a deformable viscous material. The solid drug CA may have any hardness and material as long as it can be supported by the dispersant F.

Second Embodiment
The solid medicine dissolving apparatus 100 according to the second embodiment will be described with reference to FIG.

As shown in FIG. 3, the solid medicine dissolving apparatus 100 of the present embodiment has substantially the same structure as the solid medicine dissolving apparatus 100 of the first embodiment. However, in the solid medicine dissolving apparatus 100 according to the present embodiment, the introduction channel 11A constitutes a bypass channel branched from the main channel 50 through which the water to be treated W flows. Further, the solid medicine dissolving apparatus 100 of the present embodiment is configured such that the lead-out flow passage 11C communicates with the main flow passage 50 inside the conduit 51. The main flow path 50 is provided with a check valve CH and an orifice O.

The solid medicine dissolving apparatus 100 according to the present embodiment is provided with a flow rate adjusting valve V for adjusting the flow rate of the water to be treated W flowing through the introduction flow passage 11A in the bypass flow passage. Therefore, the flow control valve V can be used to adjust the amount of water to be treated W flowing through the introduction channel 11A. Thereby, the concentration of the medicine of the water to be treated W flowing through the outlet channel 11C can be adjusted.

In addition, even if the flow rate adjustment valve V is not used, the concentration of the chemical of the water to be treated W flowing through the lead channel 11C is adjusted by changing the thickness t of the group of gravels or the like as the dispersion material F. It is also conceivable that you can Therefore, the flow control valve V may be unnecessary. However, when the flow rate adjustment valve V is closed, it is possible to prevent the washing water containing the medicine from flowing out when the filter (not shown) is washed by backwashing or rinsing. Can. Therefore, it is preferable that the flow rate adjustment valve V be provided in the introduction flow passage 11A. Further, instead of the flow rate adjustment valve V, an orifice O may be provided in the introduction flow passage 11A to adjust the flow rate of the water to be treated W flowing through the introduction flow passage 11A.

In the solid medicine dissolving apparatus 100 shown in FIG. 3, a flow rate adjustment valve V is provided to adjust the flow rate of the water to be treated W flowing through the introduction passage 11A in the introduction passage 11A. However, as shown in FIG. 4, the flow rate adjustment valve V is at a position downstream of the branch portion between the main flow passage 50 and the introduction flow passage 11A in the main flow passage 50 and is derived from the main flow passage 50. You may be provided in the position more upstream than the confluence | merging part with 11 C of flow paths. Also in the structure shown in any of FIG. 3 and FIG. 4, the flow rate adjusting valve V is operated to adjust the flow rate of the water to be treated W flowing through the introduction flow passage 11A, thereby dissolving the water to be treated W It is possible to adjust the concentration of the chemical solution being used.

If the flow rate adjustment valve V is not operated, if the flow rate of the treated water W flowing through the main flow path 50 is increased, the flow rate of the treated water W flowing through the introduction flow path 11A is also increased. The amount of drug also increases. If the flow rate adjustment valve V is not operated, the flow rate of the water to be treated W flowing through the main flow passage 50 decreases, and the flow rate of the water to be treated W flowing through the introduction flow passage 11A also decreases. The amount of drug dissolved is also reduced. Therefore, if the flow rate adjusting valve V is not operated, the concentration of the drug in the water to be treated W flowing in the main flow path 50 downstream of the solid drug dissolving device 100 is maintained approximately constant.

(Experimental result)
An experiment was conducted under the following conditions using the solid drug dissolving apparatus 100 shown in FIGS. 1 and 2.

The inner diameter and height of the cylindrical container body 2 are 125 mm and 280 mm, respectively. The diameter of the introduction channel 11A and the length of the rising portion of the introduction channel are 20 mm and 100 mm. The distance from the upper surface of the dispersion material F to the upper end of the peripheral wall 21X of the solid medicine tank 21 is 90 mm. The deposition thickness of the gravel as the dispersing agent F is t.

The flow rate of water flowing through the main flow path 50 is about 15 L / min. The flow rate of the water to be treated W is about 1.5 to 3.0 L / min. That is, the ratio of the flow rate of the water to be treated W flowing through the introduction flow passage 11A to the flow rate of water flowing through the main flow passage 50 is approximately 10% to 20%. This is because it becomes difficult to adjust the flow rate of the treated water W flowing through the introduction channel 11A if the above ratio is smaller than 10%, while if the above ratio is larger than 20%, the air in the container 12 is It is because it will flow out out of container part 12 with treated water W.

Each diameter of at least one communication hole 21A is 5 mm. By changing the thickness t of the portion where the group of gravels as the dispersion material F is deposited, the concentration of the chemical solution to the water to be treated W can be adjusted to a desired value. In this experiment, the thickness t of the portion where the group of gravels as the dispersing agent F is deposited is about 15 mm.

Moreover, the amount of a group of gravels as the dispersion material F is about 100 ml. The size of each group of gravels as the dispersion material F is about 2 mm to 4 mm. The mesh member 30 is a net made of polypropylene. The mesh member 30 has about 20 mesh, and the gap of the mesh is about 1 mm. In this experiment, granular chlorinated isocyanuric acid is used as the solid drug CA.

According to the above experiment, it can be confirmed that the free residual chlorine concentration of the water flowing through the main flow passage 50 can be adjusted to about 10 ppm. It can be confirmed that the adjustment of the chlorine concentration in the water to be treated W is realized by changing the amount of a group of gravels as the dispersing agent F described above.

For example, when the water to be treated W contains a large amount of ammonia, it is preferable to set the free residual chlorine concentration in the water to be treated W to 30 ppm to 40 ppm. The free residual chlorine concentration of 30 ppm to 40 ppm is realized by setting the amount of the group of gravels as the dispersing agent F to 50 ml.

Moreover, according to the above-mentioned experiment, while solid medicine CA contacts only treated part W with treated water W, confirming that the upper part of solid medicine CA does not contact treated water W. it can.

Concrete fragments are mixed in a group of gravels as the dispersive material F. Therefore, when the solid drug dissolving apparatus 100 is used, the alkaline component is eluted from the dispersing material F to the water to be treated W, and the ph of the water to be treated W is increased. Therefore, even if the chlorine contained in the solid chlorine agent is dissolved in the water to be treated W, it is suppressed that the ph of the water to be treated W becomes too low.

In the above experiments, granular chlorinated solid drugs are used. However, even if a chlorine-based solid drug having a particle size of about 1 cm to 3 cm is used, similar results can be obtained from the viewpoint of suppressing the variation of the chlorine concentration in the water to be treated W.

Hereinafter, the characteristic configuration of the solid medicine dissolving device 100 according to the embodiment and the effect obtained thereby will be described.

(1) The solid medicine dissolving apparatus 100 according to the embodiment includes the container unit 12, the solid medicine tank 21, the introduction channel 11A, the outlet channel 11C, and the dispersing agent F. The container 12 is openable at its upper end. The solid medicine tank 21 is provided inside the container 12, and includes a bottom 21Y and a peripheral wall 21X extending upward from the bottom 21Y and surrounding a space above the bottom 21Y. The solid medicine tank 21 has at least one communication hole 21A in at least one of the bottom surface 21Y and the peripheral wall 21X. The introduction channel 11A is connected to the bottom surface 21Y from below the bottom surface 21Y. The introduction flow path 11A guides the water to be treated W from the outside of the container portion 12 to the inside of the solid medicine tank 21. The outlet channel 11C guides the water to be treated W that has fallen from the inside of the solid medicine tank 21 via the at least one communication hole 21A to the outside of the container portion 12. The dispersion material F is placed on the bottom surface 21Y on the inner side of the peripheral wall 21X so as to cover at least one communication hole 21A, has a dispersed gap, and the water to be treated W in the solid medicine tank 21 Distribute The solid medicine tank 21 has an inner space IS opened on the upper side inside the peripheral wall 21X so that the solid medicine CA can be introduced onto the dispersion material F. The dispersion material F supports the solid drug CA when being charged into the internal space IS, but the treated water W contacts the solid drug CA, and the treated water W in which the solid drug CA is dissolved is at least It is allowed to flow to one communication hole 21A. According to this, it is possible to suppress the occurrence of variations in the concentration of the drug relative to the water to be treated W.

(2) Dispersing material F is at least one of a group of gravels, a group of gravels, a laminated woven fabric, a laminated non-woven fabric, a filter medium, a group of granular members, a three-dimensional fiber structure, and a porous member You may include one. According to this, the dispersive material F can be easily formed using the existing material.

(3) The dispersion material F may contain a member that exhibits alkalinity when dissolved in the water to be treated W. According to this, when the solid drug CA is dissolved in the water to be treated W and is made of a material that exhibits acidity, the water to be treated W that has become acidic can be neutralized by adjusting the amount of the dispersing material F Can be closer to

(4) The member that exhibits alkalinity when dissolved in the water to be treated W may include at least one of a group of cement pieces, a group of coral stones, and a group of limestones. According to this, when it melt | dissolves in the to-be-processed water W using the existing material, the dispersing agent F which shows alkalinity can be formed easily.

(5) The solid medicine dissolving apparatus 100 may further include a mesh member 30 provided to cover at least one communication hole 21A. The mesh member 30 has a group of openings whose size is smaller than at least one communication hole 21A. The mesh member 30 suppresses the passage of the dispersion material F but allows the water to be treated W to pass. According to this, in the case where the dispersion material F is a group of particulate materials, the mesh member 30 can suppress that the particulate material of a part of the dispersion material F flows out from each of at least one communication hole 21A. .

(6) The peripheral wall portion 21X is a cylinder, and the bottom surface portion 21Y is a disk through which the virtual central axis of the cylinder passes the virtual central point, and the introduction channel 11A is the position of the virtual central point of the disk described above It may be connected to In this case, it is preferable that the at least one communication hole 21A be a plurality of communication holes 21A provided along the circumference of the disc at intervals of the same circumferential angle. According to this, the to-be-processed water W can be made to contact substantially uniformly on the whole lower surface of solid medicine CA.

(7) The introduction channel 11A may constitute a bypass channel branched from the main channel 50 through which the water to be treated W flows. 11 C of lead-out flow paths may be comprised so that the main flow path 50 may be connected. It is preferable that the solid medicine dissolving apparatus 100 includes a flow rate adjustment valve V that adjusts the flow rate of the water to be treated W flowing through the introduction flow passage 11A. The flow rate adjustment valve V is located at any position of the introduction flow passage 11A or at a position downstream of the branch portion between the main flow passage 50 and the introduction flow passage 11A in the main flow passage 50 and the main flow passage 50. It is provided in the position more upstream than the confluence | merging part of 11 and the lead-out flow path 11C. According to this, by operating the flow rate adjustment valve V, it becomes possible to adjust the concentration of the drug dissolved in the water to be treated W.

This application claims the priority of Japanese Patent Application No. 2017-176624 filed on Sep. 14, 2017, the entire contents of which are incorporated by reference. .

Reference Signs List 1 lid 2 container body

11A introduction channel

11C outlet channel 12 container 21 solid medicine tank 21A communicating hole 21Y bottom 21X peripheral wall 30 mesh member 100 solid medicine dissolving device CA solid medicine F dispersion material IS internal space V flow rate Adjustment valve W treated water

Claims

A container portion whose upper end can be opened,
And at least one of the bottom surface portion and the peripheral wall portion includes a bottom surface portion and a peripheral wall portion extending upward from the bottom surface portion and surrounding a space above the bottom surface portion. Solid drug tank with three communicating holes,
An introduction channel which is connected to the bottom portion from below the bottom portion and guides the water to be treated from the outside of the container portion to the inside of the solid medicine tank;
An outlet flow path for guiding the water to be treated which has fallen from the inside of the solid medicine tank via the at least one communication hole to the outside of the container portion;
A dispersion material placed on the bottom surface portion inside the peripheral wall portion so as to cover the at least one communication hole, having a dispersed gap, and dispersing the water to be treated in the solid drug tank And
The solid drug tank has an internal space open on the upper side inside the peripheral wall so that solid drug can be introduced onto the dispersion material,
The dispersion material supports the solid drug when introduced into the internal space, but the water to be treated contacts the solid drug, and the water to be treated in which the solid drug is dissolved is the water. A solid drug dissolving device which allows flow to at least one communication hole.
The dispersion material includes at least one of a group of gravels, a group of gravels, a laminated woven fabric, a laminated non-woven fabric, a filter medium, a group of granular members, a three-dimensional fibrous structure, and a porous member. The solid medicine dissolving apparatus according to claim 1, comprising:
The solid medicine dissolving apparatus according to claim 1, wherein the dispersion material includes a member that exhibits alkalinity when dissolved in the water to be treated.
The solid medicine dissolving apparatus according to claim 3, wherein the member that exhibits alkalinity when dissolved in the water to be treated includes at least one of a group of cement pieces, a group of coral stones, and a group of limestone.
It has a group of openings whose size is smaller than the at least one communication hole, and is provided to cover the at least one communication hole to suppress passage of the dispersion material, but passes the treated water. The solid medicine dissolving apparatus according to any one of claims 1 to 4, further comprising:
The peripheral wall portion is a cylinder,
The bottom portion is a disk through which a virtual central axis of the cylinder passes a virtual central point,
The introduction channel is connected to the position of the virtual center point of the disc,
The solid material according to any one of claims 1 to 5, wherein the at least one communication hole is a plurality of communication holes provided along the circumference of the disc at intervals of the same circumferential angle. Drug Dissolution Equipment.
The introduction channel constitutes a bypass channel branched from the main channel through which the water to be treated flows;
The outlet channel is configured to communicate with the main channel,
Any position of the introduction channel, or a position downstream of the main flow channel and the branch portion of the introduction channel in the main flow channel, and the main channel and the discharge channel The solid medicine dissolving apparatus according to any one of claims 1 to 6, further comprising a flow rate adjusting valve for adjusting the flow rate of the water to be treated flowing through the introduction flow path at a position upstream of the merging portion.