JP2018187607A - Neutralization treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a neutralization treatment device which can reduce an amount of a neutralizer that is not consumed while taking advantage of an immobilization neutralizer that can suppress outflow of a small granular neutralizer to the outside and suppress occurrence of clogging even when using the small granular neutralizer, and can further improve neutralization capacity as the whole neutralization device.SOLUTION: A neutralization treatment device includes an introduction port of an untreated liquid, a treatment tank which subjects the untreated liquid to neutralization treatment and converts the neutralized untreated liquid into a treated liquid, and a discharge port of the treated liquid, where an immobilization neutralizer integrated with the granular neutralizer via a binder and a non-immobilization neutralizer made from the granular neutralizer are stored in the treatment tank.SELECTED DRAWING: None

Description

  The present invention relates to a neutralizer.

Generally, a latent heat recovery type heat exchanger such as a latent heat recovery type hot water supply device neutralizes an acidic liquid (drain water) generated by combustion of fuel gas containing nitrogen oxide (NO _x ) or sulfur oxide (SO _x ). A neutralizer for processing is provided.

  The neutralizer generally has an inlet for an untreated liquid (for example, an acidic liquid), a treatment tank containing a neutralizing agent for neutralizing the untreated liquid flowing from the inlet, and this treatment. It is comprised from the container provided with the discharge port which discharges | emits the processed liquid which flows out from a tank outside. In such a neutralizer, it is required to increase the consumption efficiency of the neutralizer by using up the neutralizer accommodated in the treatment tank without waste, and to reduce the size of the entire processor. .

  For example, Patent Document 1 discloses a treatment tank in which a neutralizing agent is contained, an untreated liquid flows from the upper part, and a treated liquid neutralized by the neutralizing agent flows from the lower part, and the treated liquid It has been proposed to reduce the size of the entire neutralization processor by combining the treated tank flowing in from the lower part and flowing out from the upper part and making the volume of the treated tank equal to or greater than the volume of the treated tank. .

Japanese Patent Laying-Open No. 2005-066965

  As described in Patent Document 1, in the design of the conventional neutralization processor, from the viewpoint of suppressing the outflow of the neutralizing agent from the treatment tank and preventing clogging of the treated liquid discharge channel. The treatment tank is separated from the treated tank by a partition having a large number of small holes. And from a viewpoint of making such a partition function effectively, it is necessary to make the magnitude | size of the neutralizing agent to be used more than fixed. However, the larger the neutralizing agent, the larger the gap between the neutralizing agents. As a result, the amount of the neutralizing agent per unit volume that can be accommodated in the treatment tank is limited. The limit of the amount of neutralizing agent that can be accommodated in the treatment tank is directly related to the limit of the neutralization capacity per volume of the treatment tank. For this reason, it is difficult to further reduce the size of the neutralization treatment apparatus designed by the conventional method while achieving a neutralization ability of a certain level or more.

  On the other hand, the present inventors integrally bonded the granular neutralizing agent through a binder to form an immobilized neutralizing agent, so that even when a smaller granular neutralizing agent is used, the granular neutralizing agent is used. Outflow of neutralizing agent to the outside can be suppressed, clogging can be suppressed, and the amount of neutralizing agent that can be accommodated in the treatment tank can be increased. It was found that it can be realized. Moreover, in this method, since the specific surface area is improved as the particle size of the granular neutralizing agent is reduced, it is possible to further improve the neutralization efficiency.

  By the way, in the case where a conventional non-immobilized neutralizing agent (hereinafter also referred to as “non-immobilized neutralizing agent”) is used, the untreated liquid comes into contact with only the neutralizing agent at a specific location and When the neutralizing agent is consumed intensively, the consumed portion is compensated by rolling down toward the portion where the surrounding neutralizing agent that has lost the scaffold is consumed. As a result, almost all of the neutralizing agent can be consumed.

  However, since the neutralizing agent is immobilized so that the granular neutralizing agent does not flow out, the untreated liquid comes into contact with only a part of the immobilized neutralizing agent and the neutralizing agent in that part is consumed. The present inventors have newly found that there is a problem that even if it is done, the surrounding neutralizing agent does not roll down toward the consumed part and remains without being consumed. Thus, the problem that a part of the neutralizing agent is not consumed leads to a result that the neutralization ability of the entire neutralization processor is not fully exhibited. Therefore, the above problem is a problem specific to the case where an immobilized neutralizing agent is used, and can be said to be an important problem from the viewpoint of the neutralization ability of the neutralizer.

  The present invention has been made in view of the above problems, and even when a small granular neutralizing agent is used, the outflow of the granular neutralizing agent to the outside can be suppressed, and the occurrence of clogging can be suppressed. It is possible to reduce the amount of neutralizing agent that is not consumed while taking advantage of the use of an immobilized neutralizing agent that can be used, and to further improve the neutralizing ability of the entire neutralization processor An object of the present invention is to provide a neutralizer that can handle the above-mentioned problem.

  As a result of intensive studies to solve the above problems, the present inventors have found that a neutralized neutralizer in which the granular neutralizer is immobilized, and a non-immobilized neutralizer in which the granular neutralizer is not immobilized. By using together, it discovered that the said subject was solvable and came to complete this invention.

  That is, the neutralization treatment apparatus of the present invention has an untreated liquid inlet, a treatment tank that neutralizes the untreated liquid to form a treated liquid, and a treated liquid discharge port. A fixed neutralizing agent in which a granular neutralizing agent is integrated via a binder and a non-immobilizing neutralizing agent made of a granular neutralizing agent are accommodated in the tank.

  By using a fixed neutralizing agent in which a granular neutralizing agent is integrated through a binder as in this configuration and a non-immobilizing neutralizing agent consisting of a granular neutralizing agent, the fixed neutralizing agent is used. When the untreated liquid comes into contact with only a part of the neutralizer and the part of the neutralizing agent is consumed, the treatment tank can flow so that the part of the non-immobilized neutralizing agent consumed can be compensated. It is possible to consume the neutralizing agent contained in the container without leaving it. As a result, it becomes possible to efficiently use the filled neutralizing agent for neutralization of the untreated liquid, and the total amount of the neutralizing agent to be filled can be set to the minimum necessary amount. Further miniaturization can be realized. In addition, by using a non-immobilized neutralizing agent, it is possible to reduce the amount of binder used compared to the case where all neutralizing agents are used as an immobilized neutralizing agent, thereby reducing material costs. Is also possible.

  Further, in the present invention, in the vertical direction, the installation position of the discharge port is preferably higher than the bottom surface of the treatment tank, and the bottom surface in the treatment tank and a horizontal plane lower than the height corresponding to the installation position of the discharge port; It is preferable that the immobilized neutralizing agent is accommodated in the space surrounded by.

  By installing the discharge port higher than the bottom surface of the treatment tank, the space surrounded by the bottom surface in the treatment tank and the horizontal plane corresponding to the height corresponding to the installation position of the discharge port (hereinafter referred to as “retention section”). In other words, the untreated liquid stays in contact with the neutralizing agent. The immobilized neutralizing agent is accommodated in the space surrounded by the lower part of this staying part, that is, the bottom face in the treatment tank and the horizontal plane lower than the height corresponding to the installation position of the discharge port, so that the non-removal from the bottom of the treatment tank. The outflow of the immobilized neutralizing agent is suppressed, and the occurrence of clogging is suppressed.

  Moreover, in this invention, it is preferable that the non-immobilization neutralizing agent is accommodated in the space enclosed by the upper surface in a processing tank, and the horizontal surface lower than the height corresponding to the installation position of a discharge port.

  The non-immobilized neutralizing agent is accommodated in the space surrounded by the upper part of the stay part and the position higher in the vertical direction than the stay part, that is, the upper surface in the treatment tank and the horizontal surface lower than the height corresponding to the installation position of the discharge port. By this, when the neutralizing agent which exists in the bottom part of a processing tank is consumed, it becomes possible for the non-immobilization neutralizing agent which lost the scaffold to collapse according to gravity. Therefore, even when the neutralizer is left standing, the non-immobilized neutralizing agent can move so as to compensate for the consumed portion.

  Furthermore, in the present invention, in an aspect further including a first flow path that communicates the introduction port and the treatment tank and / or a second flow path that communicates the treatment tank and the discharge port, It is preferable that the immobilized neutralizing agent is further accommodated in the flow path and / or the second flow path.

  Since the immobilized neutralizing agent is fixed so that the granular neutralizing agent does not flow out, the first flow path that connects the introduction port and the processing tank, and the first channel that connects the processing tank and the discharge port. Even if it installs in 2 flow paths, the outflow of a granular neutralizer to the exterior can be suppressed and generation | occurrence | production of clogging can be suppressed. In addition, by installing an immobilized neutralizing agent in the flow path that communicates the treatment tank with the introduction port and the discharge port, the storage state and the distribution state before the neutralization processor is installed in the latent heat recovery type hot water supply device, In addition, when installing the neutralization processor in the latent heat recovery type hot water supply apparatus, the non-immobilized neutralizer flows out through the first flow path or the second flow path due to the neutralization treatment apparatus tilting or the like. This can be suppressed. Thereby, the handleability of the neutralizer is further improved. Furthermore, since it becomes possible to accommodate a neutralizing agent also in places other than a processing tank, the neutralization capability can be improved more.

  Moreover, in this invention, it is preferable that the non-immobilization neutralizing agent is accommodated in at least a part of the space in the vertical direction above the immobilized neutralizing agent in the treatment tank.

  The non-immobilization that lost the scaffold when the non-immobilized neutralizing agent is consumed by containing the non-immobilized neutralizing agent in at least a part of the space above the fixed neutralizing agent in the vertical direction. It becomes possible for the neutralizing agent to collapse according to gravity. Therefore, even when the neutralizer is left standing, the non-immobilized neutralizing agent can move so as to compensate for the consumed portion.

  In the present invention, the treatment tank has an immobilization layer made of an immobilized neutralizing agent and an unimmobilized layer made of an unimmobilized neutralizing agent, and the non-immobilized layer has two immobilization layers. It is preferable to be sandwiched between layers.

  By configuring the non-immobilization layer to be sandwiched between two immobilization layers, the neutralization processor is stored and distributed before it is installed in the latent heat recovery type hot water supply device, and the neutralization processor is subjected to latent heat. At the time of installation in the recovery type hot water supply apparatus, it is possible to prevent the non-immobilized neutralizing agent from flowing out through the introduction port and the discharge port due to the inclination of the neutralization processor. Thereby, the handleability of the neutralizer is further improved.

  In the present invention, the immobilized neutralizing agent preferably contains an antibacterial agent and / or an antifungal agent.

  By containing an antibacterial agent and / or an antifungal agent, for example, it is possible to suppress the growth of fungi and mold that can be propagated in an untreated liquid or a treated liquid that stays in the staying portion. Therefore, the production | generation of the biofilm and / or gel-like viscous substance in a neutralization processing device can be suppressed, and generation | occurrence | production of clogging can be suppressed. In addition, a neutralization treatment device having an antibacterial / antifungal function can be realized in a smaller size and at a lower cost than when an antibacterial / antifungal ion generator or the like is provided.

  According to the present invention, even when a small granular neutralizing agent is used, an immobilized neutralizing agent that can suppress the outflow of the granular neutralizing agent to the outside and suppress the occurrence of clogging. Provided is a neutralization processor that can reduce the amount of neutralizing agent that is not consumed while taking advantage of the advantages used, and can further improve the neutralization ability of the entire neutralization processor. be able to.

It is a schematic diagram which shows schematic structure of the neutralization processing apparatus by 1st Embodiment. It is a schematic diagram which shows schematic structure of the neutralization processing apparatus by 2nd Embodiment. It is a schematic diagram which shows schematic structure of the neutralization processing apparatus by 3rd Embodiment. It is a schematic diagram which shows schematic structure of the neutralization processing apparatus by 4th Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as necessary. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention. is there. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, positional relationships such as up, down, left and right are based on the positional relationships shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

[Neutralizer]
The neutralization processor of the present embodiment has an untreated liquid inlet, a treatment tank that neutralizes the untreated liquid to form a treated liquid, and a treated liquid discharge port. Inside, a neutralizing agent in which a granular neutralizing agent is integrated through a binder and a non-immobilizing neutralizing agent made of a granular neutralizing agent are accommodated. Hereinafter, a specific apparatus configuration will be further described with reference to FIGS. 1 to 4.

(First embodiment)
FIG. 1 is a schematic diagram showing a schematic configuration of a neutralization processor according to a first embodiment of the present invention. The neutralizer 10 has an inlet 1 for the untreated liquid A, a treatment tank 2 that neutralizes the untreated liquid A to form a treated liquid B, and an outlet 3 for the treated liquid B. In the vertical direction, the installation position of the discharge port 3 is higher than the bottom surface of the treatment tank 2, and the neutralized neutralizer 4 in which the granular neutralizer is integrated through the binder in the treatment tank 2, And a non-immobilized neutralizing agent 5 made of a granular neutralizing agent. Further, the neutralization processor 10 is provided with a second flow path 6b that allows the processing tank 2 and the discharge port 3 to communicate with each other.

  The immobilized neutralizing agent 4 is accommodated in a space surrounded by the bottom surface in the treatment tank 2 and a horizontal plane lower than the height corresponding to the installation position of the discharge port 3, and the non-immobilized neutralizing agent 5 is treated. It is accommodated in a space surrounded by the upper surface in the tank 2 and a horizontal plane lower than the height corresponding to the installation position of the discharge port 3. Further, the non-immobilized neutralizing agent 5 is accommodated in the space above the immobilized neutralizing agent 4 in the vertical direction in the treatment tank 2, and when the immobilized neutralizing agent 4 is consumed by the neutralization treatment, It is possible to collapse toward the consumed part. The “installation position of the discharge port 3” refers to the highest position in the vertical direction of the discharge pipe when the discharge pipe is provided as shown in FIG.

  In the neutralization treatment device 10 configured in this way, for example, first, the untreated liquid A flows into the treatment tank 2 from the introduction port 1 provided in the lid portion 7 of the neutralization treatment device 10, and the treatment tank 2 is brought into contact with the immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 accommodated in the inside. The untreated liquid A that has come into contact with the immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 flows in the vertical direction downward in the treatment tank 2 according to gravity, and stays in the neutralization processor 10 until the staying portion 8 is filled. To do. When the untreated liquid A staying exceeds a certain amount that can stay in the staying portion 8, the treated liquid B flows out from the discharge port 3 beyond the partition wall 9. The untreated liquid A is neutralized in the process of contacting the immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 and the process of staying in the staying portion 8 to become the treated liquid B.

  The immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 gradually decrease in the process of neutralizing the untreated liquid A. When the non-immobilized neutralizing agent 5 immediately below the introduction port 1 is consumed by the neutralization treatment of the untreated liquid A, the non-immobilized neutralizing agent 5 around which the scaffold has been lost is consumed. It collapses so that the part of the chemical neutralizer 5 may be supplemented. Further, when the immobilized neutralizing agent 4 immediately below the inlet 1 is consumed by the neutralization treatment of the untreated liquid A, the non-immobilized neutralizing agent positioned vertically above the immobilized neutralizing agent 4 5 collapses so as to make up for the consumed part of the immobilized neutralizing agent 4 by losing the scaffold.

  In particular, when the untreated liquid A stays in the neutralizer 10 until the staying portion 8 is filled, the immobilized neutralizing agent that is immersed in the untreated liquid A staying in the staying portion 8. 4 is preferentially consumed by the neutralization treatment, and the non-immobilized neutralizing agent 5 functions to supplement the consumed immobilized neutralizing agent 4.

  The immobilized neutralizing agent 4 is not particularly limited as long as the granular neutralizing agent is integrated via a binder. Although it does not restrict | limit especially as a granular neutralizer, For example, calcium carbonate, slaked lime, caustic soda, soda ash, quick lime, limestone, moss lime, and magnesium oxide are mentioned. These granular neutralizing agents can be used alone or in combination of two or more. Among these, calcium carbonate is usually used, and calcium carbonate may be used in the form of crushed stone of, for example, white limestone (for example, cold water stone).

  As these granular neutralizers, commercially available products classified for each predetermined particle size can be used. The granular neutralizing agent may be composed of only the granular neutralizing agent classified into one class, but is preferably two or more types of granular neutralizing agents classified into different classes. By comprising two or more types of granular neutralizing agents, it becomes possible to fill the gaps between the large granular neutralizing agents with small granular neutralizing agents, and the bulk density and total surface area of the entire granular neutralizing agent can be increased, This is preferable because the neutralization speed of the untreated liquid A and the neutralization efficiency of the whole granular neutralizer can be improved. The “class” in the present specification refers to, for example, an on-mesh class (classification class) when classified by a sieve.

  When two or more types of granular neutralizers classified into different classes are used, the average particle diameter and the blending ratio of each granular neutralizer are selected in consideration of the bulk density and total surface area of the immobilized neutralizer 4. can do. The larger the bulk density of the immobilized neutralizing agent 4, the higher the density of the neutralizing agent that can be accommodated, and thus the size of the neutralizing device 10 can be reduced. In addition, as the total surface area of the immobilized neutralizing agent 4 is larger, the neutralization speed of the untreated liquid is improved and the neutralization efficiency is further improved.

  The binder is not particularly limited as long as the particulate neutralizing agent can be bound to each other. For example, inorganic binders such as gypsum, cement, weak alkali cement, sodium silicate (water glass), starch paste, and paste And natural organic binders such as glue, and synthetic organic binders. Although it does not restrict | limit especially as a synthetic organic type binder, For example, vinyl ester resin (for example, polyvinyl acetate etc.), vinyl alcohol type resin (for example, polyvinyl acetal resin, polyvinyl butyral resin, etc.), halogenated vinyl resin (for example) For example, thermoplastics such as polyvinyl chloride), polyolefin resins (for example, polyethylene, polypropylene), cellulose resins, modified silicone resins, and copolymers of monomers constituting the above resins (for example, polyethylene vinyl acetate). Examples thereof include thermosetting resins such as resins, epoxy resins, and urethane resins. These binders can be used individually by 1 type or in combination of 2 or more types. The binder can be selected from the viewpoints of water resistance and acid resistance.

  The synthetic organic binder may be used in liquid form or in powder form. By using it in a liquid state, it becomes possible to cover a wider range of the surface of the granular neutralizing agent with the resin, so that the sticking between the granular neutralizing agents tends to become stronger. On the other hand, when used in powder form, the granular neutralizing agents can be fixed to each other without relatively covering the surface of the granular neutralizing agent, so the neutralization processing speed of the untreated liquid A tends to be further improved.

  The addition amount of the binder is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.3% by mass or more and 7% by mass or less, and further preferably 100% by mass with respect to the granular neutralizer. Is 0.5 mass% or more and 5 mass% or less. When the added amount of the binder is 0.1% by mass or more, the bond between the granular neutralizers tends to be further strengthened. Moreover, it exists in the tendency which can reduce (suppress) the functional fall of the granular neutralizer by a binder coat | covering the surface of a granular neutralizer because the addition amount of a binder is 10 mass% or less.

  Moreover, it is preferable that the fixed neutralizing agent 4 contains an antibacterial agent and / or an antifungal agent. By containing an antibacterial agent and / or an antifungal agent, it is possible to effectively suppress the growth of fungi and mold in the container, and to suppress the discharge of the treated liquid contaminated with the fungus and mold. Moreover, the production | generation of the biofilm and / or gel-like viscous substance in a neutralization processing device can be suppressed, and generation | occurrence | production of clogging can be suppressed. Furthermore, compared with the case of providing an antibacterial / antifungal ion generator or the like, a neutralization treatment device having an antibacterial / antifungal function can be realized in a small size and at low cost.

  Antibacterial and antifungal agents are not particularly limited, but include, for example, metals such as silver, copper, and zinc, metal-supported zeolites, metals having photocatalytic activity, inorganic compounds such as metal oxides and metal compounds, and hinokitiol compounds. Natural organic compounds such as chitosan compounds, mustard extract compounds, eucalyptus compounds, synthetic organic compounds, organic composite agents, and the like. These compounds can be used alone or in combination of two or more. Among these, a synthetic organic compound is preferable from the viewpoint of effectively acting on both bacteria and fungi.

  Although it does not restrict | limit especially as a synthetic organic compound, For example, a nitrogen-containing heterocyclic compound, an aldehyde compound, a phenol compound, a biguanide compound, a nitrile compound, a halogen compound, an anilide compound, a disulfide compound, thio Carbamate compounds, organosilicon quaternary ammonium salt compounds, quaternary ammonium salt compounds, amino acid compounds, organometallic compounds, alcohol compounds, carboxylic acid compounds, ester compounds, thiazoline compounds, cationic polymers Can be mentioned. These synthetic organic compounds can be used singly or in combination of two or more.

  Since it is preferable that an antibacterial agent and an antifungal agent have an effect over the whole use period of a neutralization processing apparatus, what has a sustained release property is preferable.

  The addition amount of the antibacterial agent and the antifungal agent is preferably 0.1% by mass or more and 30% by mass or less with respect to 100% by mass of the binder, for example. When the addition amount of the antibacterial agent and the antifungal agent is 0.1% by mass or more, the antibacterial / antifungal effect can be effectively maintained during the use period of the neutralizer.

(Second Embodiment)
FIG. 2 is a schematic diagram showing a schematic configuration of a neutralization processor according to the second embodiment of the present invention. The neutralization processor 20 has, in the treatment tank 2, an immobilization layer 4 ′ composed of an immobilization neutralizer 4 and an unimmobilization layer 5 ′ composed of a non-immobilization neutralizer 5. Except that the immobilization layer 5 ′ is sandwiched between two immobilization layers 4 ′, the immobilization layer 5 ′ is configured in the same manner as the neutralization processor 10 shown in FIG.

  The neutralization processor 20 having such a configuration is configured so that the non-immobilized layer 5 ′ is not easily discharged out of the processing tank 2 by being sandwiched between the two immobilized layers 4 ′. Thereby, in the storage state and the distribution state before the neutralization treatment device 20 is installed in the latent heat recovery type hot water supply device, and at the time of installation where the neutralization treatment device 20 is installed in the latent heat recovery type hot water supply device, the neutralization treatment device 20. It is possible to prevent the non-immobilized neutralizing agent 5 from flowing out through the inlet 1 due to the inclination of the valve. Thereby, the handleability of the neutralizer 20 is further improved.

  The thickness of the immobilization layer 4 ′ positioned above the non-immobilization layer 5 ′ is not particularly limited as long as it does not easily flow out of the treatment tank 2 and serves as a lid. It is sufficient and can be configured to be thinner than the thickness of the immobilization layer 4 ′ located below the non-immobilization layer 5 ′ in the vertical direction.

(Third embodiment)
FIG. 3 is a schematic diagram showing a schematic configuration of a neutralization processor according to the third embodiment of the present invention. The neutralization treatment device 30 is the neutralization treatment shown in FIG. 1 except that the immobilized neutralizing agent 4 is further accommodated in the second flow path 6b communicating with the treatment tank 2 and the discharge port 3. It is comprised similarly to the container 10. FIG. Since the immobilized neutralizing agent 4 is one in which the outflow of the granular neutralizing agent to the outside is suppressed, the immobilized neutralizing agent 4 can also be accommodated in places other than the treatment tank 2 such as the second flow path 6b. In the neutralization processor 30 having such a configuration, the neutralization ability is further improved by the amount of the immobilized neutralizing agent 4 accommodated in the second flow path 6b.

(Fourth embodiment)
FIG. 4 is a schematic diagram showing a schematic configuration of a neutralization processor according to the fourth embodiment of the present invention. The neutralization processor 40 has a first flow path 6a that communicates the introduction port 1 and the treatment tank 2 in place of the second flow path 6b that communicates the treatment tank 2 and the discharge port 3. Except that the immobilized neutralizing agent 4 is further accommodated in the flow path 6a, it is configured in the same manner as the neutralizing device 10 shown in FIG. Further, the treatment tank 2 and the discharge port 3 of the neutralizer 40 are partitioned by the slit 11.

In the neutralization processor 40 configured in this way, for example, the untreated liquid A first flows into the treatment tank 2 from the inlet 1 and falls to the first flow path 6a. The untreated liquid A that has fallen to the first flow path 6 a gradually stays at the bottom of the treatment tank 2 and comes into contact with the immobilized neutralizing agent 4. When the untreated liquid A staying exceeds a certain amount that can stay in the staying portion 8, the treated liquid B flows out from the discharge port 3 beyond the partition wall 9. The untreated liquid A is neutralized in the process of contacting the immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 and the process of staying in the staying portion 8 to become the treated liquid B.

  The immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 gradually decrease in the process of neutralizing the untreated liquid A. When the immobilized neutralizing agent 4 is consumed by the neutralization treatment of the untreated liquid A, the portion of the immobilized neutralizing agent 4 that has consumed the non-immobilized neutralizing agent 5 that has lost the scaffold is compensated. Collapses. In particular, when the untreated liquid A stays in the neutralizer 40 until the staying portion 8 is filled, the immobilized neutralizing agent that is immersed in the untreated liquid A staying in the staying portion 8. 4 is preferentially consumed by the neutralization treatment, and the non-immobilized neutralizing agent 5 functions to supplement the consumed immobilized neutralizing agent 4.

  In addition, as above-mentioned, this invention is not limited to said embodiment and the modification already described, In the range which does not deviate from the summary, various deformation | transformation are possible. In other words, the above embodiment is merely an example in all respects, and is not construed in a limited manner. For example, the interface between the immobilized neutralizing agent 4 and the non-immobilized neutralizing agent 5 need not be flat. Moreover, the non-immobilizing neutralizing agent 5 may be disposed in a space surrounded by the upper surface in the treatment tank and a horizontal plane higher than the height corresponding to the installation position of the discharge port. Further, the lid portion 7 may be configured to be opened and closed freely, or may be provided with a sensor for detecting an overflow. Moreover, the emergency discharge pipe which detects and detects the abnormal signal by an overflow sensor may be provided in the bottom part of the neutralizer.

[Production method of neutralizer]
The manufacturing method of the neutralization treatment device of the present embodiment is not particularly limited, and the immobilized neutralizing agent that is immobilized in advance in the treatment tank may be accommodated, and then the non-immobilized neutralizing agent may be accommodated. A granular neutralizing agent and a binder may be accommodated in the treatment tank, the immobilized neutralizing agent may be formed by heating or the like, and then the non-immobilized neutralizing agent may be accommodated.

  In addition, when accommodating a granular neutralizing agent and a binder in a processing tank and forming a fixed neutralizing agent by heating or the like, the heating temperature is preferably 60 to 200 ° C, more preferably 60 to 150 ° C. .

  INDUSTRIAL APPLICABILITY The present invention is applied to a latent heat recovery type heat exchanger such as a latent heat recovery type hot water supply apparatus, and is industrially used as a neutralization processor that neutralizes untreated liquid generated in the latent heat recovery type heat exchanger and discharges it to the outside. Has availability.

DESCRIPTION OF SYMBOLS 1 ... Introduction port, 2 ... Treatment tank, 3 ... Discharge port, 4 ... Immobilization neutralizer, 4 '... Immobilization layer, 5 ... Non-immobilization neutralization agent, 5' ... Non-immobilization layer, 6a ... No. 1 channel, 6b ... 2nd channel, 7 ... lid part, 8 ... staying part, 9 ... partition, 10, 20, 30, 40 ... neutralization processor, 11 ... slit, A ... untreated liquid, B ... treated liquid

Claims (8)

An inlet for untreated liquid;
A treatment tank that neutralizes the untreated liquid to form a treated liquid;
An outlet for the treated liquid,
In the treatment tank, a neutralized neutralizer in which a granular neutralizer is integrated via a binder and a non-immobilized neutralizer composed of a granular neutralizer are contained. Features
Neutralizer. In the vertical direction, the installation position of the discharge port is higher than the bottom surface of the treatment tank,
The neutralization processor according to claim 1. The immobilized neutralizing agent is accommodated in a space surrounded by the bottom surface in the treatment tank and a horizontal plane lower than the height corresponding to the installation position of the discharge port.
The neutralization processor according to claim 2. The non-immobilized neutralizing agent is accommodated in a space surrounded by an upper surface in the treatment tank and a horizontal plane lower than a height corresponding to the installation position of the discharge port.
The neutralization processor according to claim 2 or 3. A first flow path that communicates the introduction port and the treatment tank, and / or a second flow path that communicates the treatment tank and the discharge port;
The immobilized neutralizing agent is further accommodated in the first flow path and / or the second flow path,
The neutralization processor according to any one of claims 1 to 4. The non-immobilized neutralizing agent is accommodated in at least a part of the space above the immobilized neutralizing agent in the vertical direction in the treatment tank,
The neutralization processor according to any one of claims 1 to 5. In the treatment tank, having an immobilized layer composed of the immobilized neutralizing agent, and a non-immobilized layer composed of the non-immobilized neutralizing agent,
The non-immobilization layer is sandwiched between two of the immobilization layers,
The neutralization processor according to any one of claims 1 to 6. The immobilized neutralizing agent contains an antibacterial agent and / or an antifungal agent,
The neutralization processor according to any one of claims 1 to 7.