JP3673931B2 - Solution manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a solution manufacturing apparatus suitably used for manufacturing a solution such as a photographic developer or a fixing solution, and in particular, a solid fed into a dissolution tank by circulating a liquid in a dissolution tank through a solid separation filter. The present invention relates to a solution manufacturing apparatus for dissolving an object.
[0002]
[Prior art]
The conventional solution manufacturing apparatus as described above starts up the circulation pipe from the bottom of the dissolution tank, bends the outlet at the tip horizontally, and agitates the liquid in the dissolution tank by horizontally ejecting the circulating liquid from the outlet. Compared with the solution manufacturing equipment that promotes the dissolution of solid matter and has a stirring blade in the dissolution tank to promote the dissolution of solid matter, the device is configured more compactly and the solution is oxidized and altered. There are advantages such as being difficult to do.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned circulating solution manufacturing apparatus is mainly used for dissolving relatively large solids such as tablets one by one, so that a plurality of smaller solids can be dissolved together. In particular, in comparison with a stirring blade type solution manufacturing apparatus, liquid stagnation easily occurs from the rise of the circulation pipe in the dissolution tank to the jet outlet, so that it takes extra time to dissolve the solid matter. There was a problem.
[0004]
The present invention has been made in order to solve the above-mentioned problems. In addition to dissolving solids one by one, simultaneous dissolution of a plurality of solids is also performed in a short time, and the apparatus is compact. It is an object of the present invention to provide a circulating solution manufacturing apparatus that is difficult to oxidize and alter a solution.
[0005]
The present invention provides a tank containing a liquid for dissolving one tablet or a plurality of solids, a solid separation filter that partitions the tank into at least two tanks, a dissolution tank and a solution tank, and the solution A solution production apparatus having a liquid absorption pipe joined to a tank and a circulation means provided with a jet nozzle joined to the dissolution tank to circulate the liquid, and the dissolution tank according to claim 1 of the claims An inclined bottom surface is provided, and at least one of the ejection ports is provided at a position where solids gather along the inclination of the bottom surface of the dissolution tank,
The solid material is dissolved by ejecting the liquid sucked from the liquid suction pipe by the circulation means to the solid material charged into the dissolution tank and acting on the solid material. The liquid sucked from the liquid suction pipe by the circulation means is ejected from the ejection port to the solid matter charged into the dissolution tank according to the configuration characterized in that In the solution manufacturing apparatus configured to dissolve the solid matter by acting, an inclined solid matter separation filter is provided to be inclined in the liquid of the dissolution tank, and on the side surface below the liquid level in the dissolution tank. The object is achieved by a configuration characterized in that a jet outlet for jetting the circulating liquid is provided.
[0006]
That is, the solution manufacturing apparatus according to claim 1 uses the circulation means including a pump, a flow rate regulating valve, a circulation pipe, and the like for the solid matter put into the dissolution tank to discharge the liquid sucked from the suction pipe from the jet outlet. Since the solid matter can be dissolved in a short time because it is ejected and brought into direct contact with the solid matter, the circulation pipe is not protruded into the dissolution vessel, so that it is difficult for the liquid in the dissolution vessel to stagnate and the liquid is solid. It is possible to dissolve the solid matter in a short time by effectively acting on the matter, and at least one of the jet nozzles is provided at a position where the solid matter gathers along the inclination of the bottom surface of the dissolution tank. According to the configuration, the liquid effectively acts on the solid matter to dissolve the solid matter in a short time, and the solution manufacturing apparatus according to claim 4 is provided with the above-described jet nozzle to further remove the undissolved solid matter. Drop along the surface of the tilt filter Because they collected thereby, it is possible to dissolve the undissolved solids more effectively the action of circulating liquid with solids more quickly. Further, in the solution manufacturing apparatus according to claim 2, the temperature adjustment means can adjust the temperature of the circulating liquid to a temperature at which the solid matter dissolves in a short time, and the temperature adjustment means can be used for the circulating liquid in the solution tank downstream of the solid matter separation filter. Since the temperature of the circulating liquid can be made uniform, the temperature control means has a large number of parallel heat transfer fins and circulating liquid passages with a large heat transfer area with the circulating liquid. Even so, there is no risk of solid heating due to clogging or collision of the solid matter or shortening of the life of the temperature control means, and the solid matter can be dissolved stably and efficiently.
[0007]
The soluble solution preparation apparatus according to claim 3, because they also provided temperature control means also spout described above, it can be dissolved in a short time more effectively solid.
[0009]
The gradient filter is provided in the dissolution tank, the above solution producing apparatus spout is opened circulating the liquid to the side surface of the dissolution vessel, solid further claims 5 and spout falls along the surface of the inclined filter provided dissolution tank side surface of the lower gathering the goods, construction, characterized in that ejected parallel to the surface of the inclined filter circulation liquid in a substantially horizontal, yet is of claim 5, the above-described ejection port is provided, further With the configuration in which the undissolved solid is dropped and collected along the surface of the inclined filter, the circulating liquid can act more effectively on the undissolved solid and the solid can be dissolved in a shorter time.
[0010]
Furthermore, the jet outlet of Claim 6 is provided so that the said circulating liquid which spouts to the both sides | surfaces which the said dissolution tank opposes may collide, or the bottom face of the dissolution tank further of Claim 7 By adding a configuration characterized in that there is a gap with the inclined filter, and a jet outlet is provided on the side surface of the dissolution tank with respect to the gap to circulate the circulating liquid horizontally and parallel to the surface of the inclined filter. Further, the liquid acts more effectively on the solid matter, and the solid matter is dissolved in a short time. 9. The structure according to claim 8 , wherein the jetting speed of the circulating liquid from the jetting port is controlled to be high when the solid is dissolved, and the other is controlled to be low, and further, the solute concentration of the circulating liquid according to claim 9 By detecting the completion of dissolution of the solid matter from the control and controlling the ejection speed based on the detection information, the action of the circulating liquid on the solid matter is performed more effectively. Thus, the solid can be dissolved in a shorter time.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described by way of embodiments with reference to the drawings.
[0012]
1 is a schematic cross-sectional view showing an example of the solution manufacturing apparatus of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a schematic cross-sectional view of another example of the solution manufacturing apparatus of the present invention, and FIG. 5 is a schematic cross-sectional view showing another example of the solution manufacturing apparatus of the present invention, FIG. 6 is a plan view thereof, and FIG. 7 is a schematic cross-sectional view showing another example of the solution manufacturing apparatus of the present invention. 8 is a plan view thereof, FIG. 9 is a schematic sectional view showing another example of the solution producing apparatus of the present invention, and FIG. 10 is a plan view thereof.
[0013]
In the figure, 1 is a dissolution tank for storing a solvent such as water or an organic solvent supplied from an upper opening, and then dissolving a solid substance such as a developer or fixing agent such as a tablet or granule to be charged, 2 is a solid separation filter for separating the solid matter in the dissolution tank 1 and taking out a liquid such as a solvent or a solution, and 3 shown in FIGS. 3 to 10 is adjacent to the dissolution tank 1 via the solid matter separation filter 2. It is a solution tank that is provided together and stores the liquid separated from the dissolution tank 1 by separating the solids by the solids separation filter 2. Here, as the solid matter separation filter 2, a sheet-like material having finer filtration holes than the net having a mesh size of # 30 is preferably used. Needless to say, the supply of the solvent to the dissolution tank 1 or the addition of the solid material is not limited to the above example, and a separate supply path may be provided.
[0014]
Since the solution production apparatus of FIGS. 3 to 10 is provided with the solution tank 3, it can increase the filtration area of the solid separation filter 2 and reduce the filtration speed. Therefore, the solid production separation filter than the solution production apparatus of FIGS. Thus, the service life can be reduced, the operating cost can be reduced, and the liquid from which the undissolved solids are sufficiently separated by the solid separation filter 2 can be taken out from the dissolution tank 1 to the solution tank 3. Further, the height of the solid separation filter 2 between the dissolution tank 1 and the solution tank 3 is made lower than the height of the side walls of both tanks, so that when the solid separation filter 2 is clogged, the liquid in the dissolution tank 1 is changed. Since the liquid flows into the solution tank 3 beyond the solids separation filter 2, it is possible to prevent the liquid from overflowing beyond the side walls of both tanks.
[0015]
In the figure, 4 is a liquid suction pipe for taking out liquid by contacting the bottom of the dissolution tank 1 or the solution tank 3, P is a liquid feed pump for sending liquid from the liquid suction pipe 4 to the liquid feed pipe 5, and M is a pump. Motors 6, 6 R, 6 L, 7, 8, and 9 for driving P are provided on the circulating liquid return pipes 10, 10 R, 10 L, 11, and 12 and the solution-dissolved solution delivery pipe 13 connected to the liquid feeding pipe 5, respectively. The flow regulating valves 10a, 10Ra, 10La, 11a, and 12a are arranged so that the circulating liquid that opens to the inner surface of the dissolution tank 1 at the tip of the return pipe 10, 10R, 10L, 11, and 12 is substantially horizontal in the liquid in the dissolution tank 1. It is a spout that spouts out. When producing a solution by dissolving solids in the dissolution tank 1, the flow rate regulating valve 9 is closed, and the flow rate regulating valves 6, 6R, 6L, 7, and 8 are adjusted to be open so as to achieve an appropriate flow rate balance. P is driven to circulate the liquid in the dissolution tank 1. When the dissolution is completed, the obtained solution of a fixed concentration such as a developing solution or a fixing solution is sent out to a developing tank, a fixing tank, or the like of the automatic developing machine through the delivery pipe 13. The delivery pipe 13 is not limited to the illustrated example, and may be provided separately in contact with the bottom of the dissolution tank 1 or the solution tank 3.
[0016]
As can be seen from the above, since the liquid circulated in the dissolution tank 1 is separated and circulated by the solid separation filter 2, the pump P and the flow rate regulating valves 6, 6R, 6L, 7 to 9 are caused by the solid matter. It is prevented from being damaged or causing malfunction. Further, the jets 10a, 10Ra, 10La, 11a, and 12a are opened on the inner surface of the dissolution tank 1, so that the conventional circulating liquid jet pipe protrudes into the dissolution tank. The problem that liquid stagnation occurs around the root of the tube and it takes time to completely dissolve the solid matter is improved. This effect is not limited to the case where there are a plurality of outlets as in the illustrated example, and can be obtained even if there is only one. However, it is preferable that there are a plurality of jet outlets as described below.
[0017]
The spout 10a-12a provided in the side wall of the dissolution tank 1 in the example of FIG. 1 thru | or FIG. 8 has the spout 10a, 12a left laterally apart on the same inner surface, and the inner surface facing it The jet outlet 11a is opened so as to hit the middle of the lateral positions of the jet outlets 10a and 12a, and the height of the jet outlets 10a to 12a is different. As a result, the liquid in the dissolution tank 1 acts efficiently on the solid matter without causing further stagnation, and the solid matter is rapidly dissolved.
[0018]
In the example of FIG. 3, FIG. 4 or FIG. 7 and FIG. 8, the bottom surface of the dissolution tank 1 is inclined, and on the inner surface of the dissolution tank at a position where solids fall and gather along the inclination of the bottom surface. A spout 10a is provided. The solids are dissolved more rapidly by efficiently acting on the solids in which the circulating liquid ejected from the jet port 10a is collected. This is particularly preferable when there is only one jet outlet. In such an example, the slope of the bottom surface of the dissolution tank 1 is not limited to only one, but may be inclined in two directions in a mountain shape and provided with jet holes on the side surfaces located at two valleys. In that case, the liquid absorption pipes 4 as shown in FIG. 1 and FIG. 2 are provided at two locations in the bottom valley, or the side surface opposite to the side surface provided with the ejection port is shown in FIGS. Such a solution tank 3 may be provided.
[0019]
In the example of FIGS. 5 and 6, an inclined filter 14 of a solid matter separation filter that drops undissolved solid matter put into the liquid of the dissolving tank 1 along the inclined surface is provided, and the inside of the dissolving tank is provided. The side jet outlets 10 a to 12 a are assumed to circulate the circulating liquid substantially horizontally and parallel to the surface of the inclined filter 14. The circulating liquid is jetted to the lower part of the dissolution tank 1, the outlet 11 a jets the circulating liquid near the middle surface of the inclined filter 14, and the outlet 12 a is dissolved in the same direction as the inclined filter 14. The circulating liquid is ejected into the gap with the bottom surface of the tank 1. The inclined filter 14 is preferably a sheet-like material having finer filtration holes than the # 5 net.
[0020]
As a result, a part of the circulating liquid ejected from the ejection port 12a acts to separate the solid matter from the surface of the sloped filter 14 through the sloped filter 14, and the other part is a fine solid matter that has passed through the sloped filter 14. Acts along the slope of the bottom surface of the dissolution tank 1 to pass through the gap with the sloped filter 14 and to associate with the solid matter dropped along the surface side of the sloped filter 14. In addition, the circulating liquid ejected from the ejection port 11 a acts uniformly on the entire surface of the solid matter away from the surface of the inclined filter 14, and the circulating liquid ejected from the ejection port 10 a is inclined to the bottom surface of the inclined filter 14 and the dissolution tank 1. It works effectively on the fine solid matter of dissolution residue that gathers along. Therefore, the dissolution tank 1 of FIGS. 5 and 6 completely dissolves the solid matter more rapidly than the dissolution tank 1 of FIGS. 3 and 4 as well as the dissolution tank 1 of FIGS.
[0021]
In the example of FIGS. 7 and 8, the temperature of the circulating liquid separated from the solution tank 3 through the solid substance separation filter 2 from the dissolution tank 1 is adjusted to a temperature at which the solid substance is easily dissolved. The temperature control means 15 provided with the heat carrier tube 15b with the heat fin 15a and the heat medium control part 15c is provided. As a result, the temperature of the circulating liquid in the solution tank 1 can be made uniform to a temperature at which the solid matter is easily dissolved, so that the solid matter can be dissolved more rapidly. In addition, since the temperature control means 15 is provided on the downstream side of the solid matter separation filter 2 such as the solution tank 3, the solid matter may collide with or adhere to the temperature control means 15 to cause damage or overheating. There is no fear of doing. The temperature adjusting means 15 is not limited to the above-described example in which the heat medium is circulated, and may be one that uses an electric heater whose temperature is controlled by a thermistor or the like, or that heats or cools the circulating liquid through a heat transfer thin tube. Further, the temperature adjusting means 15 in the illustrated example is not limited to the example provided in the solution manufacturing apparatus in FIGS. 3 and 4, but the solution manufacturing apparatus in FIGS. 5, 6, 9 and 10, or the solution in FIGS. 1 and 2. What was provided in the manufacturing apparatus may be used.
[0022]
In the examples of FIGS. 9 and 10, instead of the jet outlet 10 a in the examples of FIGS. 5 and 6, the circulating liquids jetting the jet outlets 10 Ra and 10 La collide with each other on the opposite side surfaces of the dissolution tank 1. They are provided facing each other. As a result, the circulating liquid acts more effectively on the solid matter of the dissolution residue collected along the slope of the bottom surface of the inclined filter 14 and dissolution tank 1 so that the solid matter dissolves more quickly than in the examples of FIGS. become. The provision of the ejection ports 10Ra and 10La is not limited to the examples of FIGS. 9 and 10, but may be provided in the solution manufacturing apparatus of FIGS. 3, 4, 7, and 8.
[0023]
In any of the illustrated solution manufacturing apparatuses, when the dissolution of the solid in the dissolution tank 1 is completed, the flow restriction valves 6, 6R, 6L, 7, and 8 are closed, the flow restriction valve 9 is opened, and as necessary. The pump P is driven so that the solution adjusted to a constant concentration in the dissolution tank 1 is fed by a delivery pipe 13 to a developing tank, a fixing tank and the like of the developing device by a necessary amount. If the solution remains in the circulation system such as the dissolution tank 1 after the completion of the feeding, the flow rate regulating valve 9 is closed and the flow rate regulating valves 6, 6R, 6L, 7, 8 are appropriately opened as necessary. Then, the pump P is driven at a lower speed than when the solid substance is dissolved, and the solution is preferably circulated and stored in the circulation system. The same applies when there is a time from the completion of dissolution until the start of feeding to the developing device. However, the present invention is not limited to this and may be stored without being circulated. Completion of the dissolution of the solid matter may be determined empirically from the time of the introduction of the solid matter and the start of the circulation of the liquid in the dissolution tank 1, but when the concentration change stops by measuring the solute concentration of the circulating liquid, It is preferable to do this.
[0024]
When a specific example is shown together with a comparative example, the example uses the solution manufacturing apparatus shown in FIG. 1 and FIG. 2, and the comparative example raises a circulation pipe from the bottom of the dissolution tank into the tank and discharges the nozzle at the tip. 1 and 2 using a solution manufacturing apparatus having the same structure as that shown in FIGS. 1 and 2 except that the circulating liquid is jetted horizontally, and a developer tablet having a thickness of 10 mm and a diameter of 30 mm is used. The solution was poured into 30 ° C water in the dissolution tank 1 and dissolved under the condition that the circulating flow rate of the circulating liquid was made substantially the same by a pump and a flow rate regulating valve. As a result, the example was completely dissolved in 8.5 minutes. However, the comparative example took 10.5 minutes to completely dissolve.
[0025]
Further, as specific examples, the developer tablets 20 each having a thickness of 10 mm and a diameter of 30 mm using the solution manufacturing apparatuses shown in FIGS. 1, 2, 3, 4, 5, and 6, respectively. As shown in FIG. 1 and FIG. 1, the tablet is completely dissolved as a result of the individual being poured into 20 ° C. water in the dissolution tank 1 and dissolved under the condition that the circulating flow rate of the circulating liquid is made substantially the same by the pump and the flow regulating valve. It took 95 minutes for the apparatus 2, 78 minutes for the apparatus of FIGS. 3 and 4, and 40 minutes for the apparatuses of FIGS. 5 and 6.
[0026]
Further, as a specific embodiment, the same conditions as those in the embodiment of FIGS. 3 and 4 are used except that the solution manufacturing apparatus shown in FIGS. 7 and 8 is used and the temperature of the circulating liquid is set to 30 ° C. As a result of dissolution, it took 50 minutes for the tablet to completely dissolve.
[0027]
As a specific embodiment, the solution production apparatus shown in FIGS. 9 and 10 is used to determine the amount of each of the circulating liquid discharged from the outlets 10Ra and 10La. As a result of dissolution under the same conditions as in the examples of the apparatus shown in FIGS. 3 and 4 except that the outlet 10a was slightly more than 1/2, it took 30 minutes for the tablet to completely dissolve.
[0028]
【The invention's effect】
As described above in detail, the solution manufacturing apparatus of the present invention has a remarkable effect that the apparatus is compactly configured and the solution is hardly oxidatively deteriorated, and the solid matter is dissolved in a short time. Play.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing an example of a solution production apparatus of the present invention.
2 is a plan view of the solution manufacturing apparatus of FIG. 1. FIG.
FIG. 3 is a schematic sectional view showing another example of the solution production apparatus of the present invention.
4 is a plan view of the solution manufacturing apparatus of FIG. 3. FIG.
FIG. 5 is a schematic sectional view showing another example of the solution production apparatus of the present invention.
6 is a plan view of the solution manufacturing apparatus of FIG. 5. FIG.
FIG. 7 is a schematic cross-sectional view showing another example of the solution production apparatus of the present invention.
8 is a plan view of the solution manufacturing apparatus in FIG. 7. FIG.
FIG. 9 is a schematic cross-sectional view showing another example of the solution production apparatus of the present invention.
10 is a plan view of the solution manufacturing apparatus of FIG. 9. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dissolution tank 2 Solid matter separation filter 3 Solution tank 4 Absorption pipe 5 Liquid supply pipe 6,6R, 6L, 7-9 Flow control valve 10,10R, 10L, 11,12 Return pipe 13 Delivery pipe 14 Inclination filter 15 Temperature Adjustment means

Claims (9)

A tank containing a liquid for dissolving one tablet or a plurality of solid substances, a solid separation filter that partitions the tank into at least two tanks, a dissolution tank and a solution tank, and the solution tank are joined. A solution production apparatus comprising a liquid suction pipe and a circulation means provided with a jet port joined to the dissolution tank and circulating the liquid,
Providing a bottom surface inclined to the dissolution tank, and providing at least one of the ejection ports at a position where solids gather along the inclination of the bottom surface of the dissolution tank;
The solid matter is dissolved by ejecting the liquid sucked from the liquid suction pipe by the circulation means to the solid matter charged into the dissolution tank and acting on the solid matter. The solution manufacturing apparatus characterized by the above-mentioned.   The solution manufacturing apparatus according to claim 1, wherein temperature adjusting means for adjusting the temperature of the liquid in the tank is provided in the solution tank.   The solution production apparatus according to claim 1, wherein the ejection port is provided on a side surface below the liquid level of the dissolution tank. A tank containing a liquid for dissolving one tablet or a plurality of solid substances, a solid separation filter that partitions the tank into at least two tanks, a dissolution tank and a solution tank, and the solution tank are joined. A solution production apparatus comprising a liquid suction pipe and a circulation means provided with a jet port joined to the dissolution tank and circulating the liquid,
  The solid material is dissolved by ejecting the liquid sucked from the liquid suction pipe by the circulation means to the solid material charged into the dissolution tank and acting on the solid material. In the prepared solution manufacturing apparatus,
  An apparatus for producing a solution, characterized in that an inclined solid matter separation filter is provided by inclining in the liquid in the dissolution tank, and an ejection port for ejecting a circulating liquid is provided on a side surface below the liquid level in the dissolution tank. The spout is provided on the side surface of the lower part of the dissolution tank where solids falling along the surface of the inclined solid separation filter are collected, and the circulating liquid is ejected substantially horizontally and parallel to the surface of the inclined solid separation filter. The solution manufacturing apparatus according to claim 4, wherein: The solution production apparatus according to claim 5, wherein the ejection port is provided so as to collide with the circulating liquid ejected on opposite side surfaces of the dissolution tank. A bottom surface of the dissolution tank has a gap between it and the inclined solids separation filter, and the outlet is provided on a side surface of the dissolution tank with respect to the gap, so that the circulating liquid is substantially horizontally inclined to the inclined solids separation filter. The solution producing apparatus according to claim 6, wherein the solution producing apparatus is jetted in parallel to the surface. The solution production according to any one of claims 1 to 7, wherein the jetting speed of the circulating liquid from the jetting port is controlled to be high when the solid is dissolved and to low speed otherwise. apparatus. 9. The solution manufacturing apparatus according to claim 8, wherein completion of dissolution of the solid matter is detected from a solute concentration of the circulating liquid, and the ejection speed is controlled based on the detection information.

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