JP2000070601A - Evaporation-concentration apparatus and method for evaporation-concentration of photographic waste liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize efficient evaporation-concentration with an apparatus smaller in size and inexpensive in production cost in such constitution that a bath containing a heater is installed on the outside of a storage tank to store a portion of condensate and that the condensate in the storage tank is heated up through the heated condensate in the bath. SOLUTION: A vaporizer 100 is mainly comprised of a storage tank 110 which stores a proper quantity of liquid, an auxiliary device 113 which makes the liquid move into and out of the storage tank 110 by motions such as a circulating motion and a reciprocating motion, and a heater H such as an oil- enclosed heater and a cast heater installed at the bottom or in the lower part outside the storage tank 110. The heater H heats up the liquid in the storage tank 110 through a heat medium consisting, for example, a condensate which is stored in a bath installed on the outside of the storage tank 110. This allows the apparatus to obtain a larger heat transfer area to promote uniform heating and to prevent local heating in the storage tank 110, as compared with such a constitution that the heater H heats up the liquid directly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for evaporating and concentrating a liquid to be treated and a method for evaporating and concentrating photographic waste liquid.

[0002]

2. Description of the Related Art An evaporating section for evaporating a liquid to be treated, a condensing section for liquefying the evaporated vapor to obtain a condensed liquid, and a circulation for circulating a gas provided between the evaporating section and the condensing section. And a blower for promoting gas circulation, and uses a reduced-pressure heat pump circuit to process a waste liquid of a processing solution for a silver halide photographic light-sensitive material (hereinafter sometimes simply referred to as a photographic waste liquid). Evaporating concentrators are known.

[0003] Further, as the heating means, an indirect heat pump, an electric heater, steam heating, and the like are known.

[0004]

The evaporative concentrator using the reduced-pressure heat pump circuit is a useful one that does not generate a high temperature in the liquid to be processed, but has a low processing capacity (for example, 2 (Evaporation concentration of 1 liter / hour or less) is required, the same number of parts as in the case of a high-capacity apparatus is required, and as a result, there is a limit to downsizing of the apparatus and it is difficult to reduce the cost. There is a problem.

Further, if the electric heater is simply used as the heating means, for example, the temperature of the evaporator is partially increased, and as a result, the liquid to be treated in the evaporator is efficiently heated. Not suitable for

Further, in the case of steam heating, a high temperature of 100 ° C. or more is required, and not only is the steam generating equipment expensive, but when photographic waste liquid is used, harmful hydrogen sulfide gas is generated. This is extremely undesirable.

[0007] The present invention has been made in view of the above points,
Evaporative concentrator that can be manufactured in a small size, at low cost, and enables efficient evaporative concentration without leaking odors even when evaporating and concentrating liquids to be processed such as photographic waste liquid. And a method for evaporating and concentrating photographic waste liquid.

[0008]

The object of the present invention can be achieved by the following constitution.

(1) A liquid evaporator including a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensed liquid, the liquid evaporator and the condenser An evaporating and concentrating apparatus configured to generate a gas flow via a blowing means in the circulation path, wherein a heater is built-in, and a part of the condensed liquid is provided. An evaporating and concentrating apparatus, wherein a bath for storing the liquid is provided outside the storage container, and the liquid to be treated in the storage container is heated via the heated condensate.

(2) The condensing section is located at a position higher than the liquid evaporating section, and a part of the condensed liquid is automatically brought into the bath tub by its head. The evaporative concentrator according to (1).

(3) The evaporating and concentrating apparatus according to the above (1), further comprising an auxiliary means for repeating a moving-in / out motion with respect to the liquid to be processed stored in the storage container.

(4) The evaporating and concentrating apparatus according to (3), wherein the auxiliary means comprises a plurality of plate members arranged coaxially in parallel at predetermined intervals.

(5) The auxiliary means is composed of a plurality of disk-shaped plate members arranged substantially perpendicularly to the axis and in parallel at a predetermined interval, and is provided on the bottom surface of the storage container during rotation. The evaporating and concentrating device according to (3), wherein a fin portion that comes into close or light contact with the disk-shaped plate is provided on the outer periphery of the disc-shaped plate.

(6) A liquid evaporator including a storage container for storing the liquid to be treated, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensed liquid, the liquid evaporator and the condenser In the evaporating and concentrating apparatus configured to generate a gas flow via a blowing unit in the circulation path, the liquid to be treated stored in the storage container is provided. Auxiliary means provided to repeat the rotational input / output movement, a fin provided on the auxiliary means so as to come into close or light contact with the bottom surface of the storage container during rotation, and a casting provided on the lower outside of the storage container. An evaporative concentrator comprising a heater and an outlet for a concentrated liquid provided at the bottom of the storage container.

(7) A liquid evaporator including a heating means and a storage container for storing the liquid to be treated, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. In the evaporating and concentrating apparatus configured to have a circulation path formed between the condenser and the condensing unit, and to generate a gas flow through the blowing unit in the circulation path, the temperature of the liquid to be treated in the storage container And a second temperature detecting means for detecting the gas temperature of the circulating gas,
An evaporating and concentrating device, wherein the first and second temperature detecting means are configured to stop operation or display an alarm when detecting that a preset temperature has been reached.

(8) The evaporating and concentrating apparatus according to (7), wherein the condenser has a heat exchanger that performs steam cooling by outside air.

(9) Auxiliary means composed of a plurality of disk-shaped plate members arranged substantially perpendicular to the axis and at predetermined intervals is provided, and the disk-shaped member is disposed inside the storage container. The auxiliary means and the air blower are configured so as to repeat the rotation in / out movement with respect to the liquid to be processed, and so that the circulating gas passes between the disc-shaped plate members exposed from the liquid surface of the liquid to be processed. The evaporating and concentrating apparatus according to the above (7), wherein the evaporating and concentrating apparatus is arranged in association with means.

(10) Liquid level detecting means for detecting the liquid level in the storage container, supply means for automatically supplying the liquid to be processed to the storage container based on the detection result of the liquid level detecting means, When the first and second temperature detecting means detects that a preset temperature is reached, a predetermined time,
The evaporating and concentrating apparatus according to (7), wherein the heating unit and the supply unit are configured to be inoperative.

(11) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. In the evaporative concentrator configured to have a circulation path formed between the condenser and the condensing unit, and to generate a gas flow through the blowing unit in the circulation path, the liquid level in the storage container is detected. Liquid level detecting means, and a supply means for automatically supplying the liquid to be processed from the liquid tank to be processed to the storage container based on the detection result of the liquid level detecting means,
Based on the detection result of the liquid level detection means, if the liquid shortage is detected even after a preset operation time of the supply means, the operation is interrupted and a display alarm is performed, and the evaporation concentration is performed. apparatus.

(12) There is provided a capacity detecting means for detecting a liquid capacity in the liquid tank to be processed, and the liquid is insufficient even after a preset operating time of the supply means based on a detection result of the liquid level detecting means. Is detected, and when the detection result of the capacity detecting means is a detection result indicating that there is no liquid amount that can be supplied, the heating means and the supplying means are configured to be inoperative. The feature (1)
The evaporative concentrator according to 1).

(13) The supply means is automatically operated after a lapse of a set time from the interruption of the operation, and when the detection result of the liquid level detection means indicates that there is a liquid, the operation is returned to the normal operation, and the predetermined time is set. The evaporating and concentrating apparatus according to (11), wherein the operation is interrupted or stopped and a display alarm is performed if the detection result of the liquid level detecting means becomes insufficient even when the apparatus is operated.

(14) A liquid evaporator including a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensed liquid, the liquid evaporator and the condenser Having a circulation path formed between:
In the evaporative concentration device configured to generate a gas flow through the blowing means, a heater is built in, and a bathtub for storing a heat medium is provided outside the storage container, and the heat medium is heated through the heat medium. A first temperature detection unit configured to heat the liquid to be processed in the storage container, a second temperature detection unit configured to detect a temperature of the liquid to be processed in the storage container, and a second temperature detection unit configured to detect a temperature of the heat medium. When the temperature detection result of the first temperature detecting means detects that the temperature of the heat medium approaches a preset temperature, an operation stop or a display alarm is performed, and the set temperature for the heat medium is reduced. An evaporating and concentrating apparatus characterized in that the current supply control for the heater is changed.

(15) The evaporative concentrator according to (14), wherein a temperature bimetal is provided near the heater, and when the temperature bimetal is equal to or higher than a set temperature, power supply to the heater is cut off. apparatus.

(16) A liquid evaporating section including a heating means and a storage container for storing the liquid to be processed, and a condensing section for obtaining a condensed liquid via a heat exchange means for cooling and liquefying the vapor evaporated in the liquid evaporating section. An evaporating and concentrating apparatus configured to have a circulation path formed between the liquid evaporating section and the condensation section, and to generate a gas flow in the circulation path via a blowing means, An auxiliary means for repeatedly carrying out the in / out movement with respect to the liquid to be processed in the liquid container, a liquid level detecting means for detecting the liquid level in the storage container, and Supply means for supplying the liquid to be treated in the storage container, a condensate tank for storing the condensate flowing out of the condensing section, and a liquid level detection means for detecting a liquid level in the condensate tank , That the condensate has reached a predetermined amount When the detection unit detects, the heating unit and the supply unit are deactivated, and after a lapse of a predetermined time from the detection, the operation of the blowing unit, the auxiliary unit, and the heat exchange unit is stopped. Evaporating concentrator.

(17) The display that the condensed liquid has reached the predetermined amount and the display of the stoppage of the operation of the blowing unit, the auxiliary unit, and the heat exchanging unit are displayed by different displays using one display unit. The evaporative concentrator according to the above (16), wherein:

(18) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. An evaporating and concentrating apparatus having a circulation path formed between the condenser and the condensing unit, wherein a gas flow is generated in the circulation path via a blowing unit. And an auxiliary means for repeatedly performing the input / output movement with respect to the liquid to be processed in the storage container by driving, wherein the motor is configured to be intermittently driven or continuously driven in a power-on state. Evaporating concentrator.

(19) The motor is configured to be continuously driven when the operation is on and intermittently driven when the operation is off.
The evaporating and concentrating apparatus according to (18), wherein the apparatus is configured to be able to be in a continuous driving state in the operation OFF state.

(20) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. An evaporating and concentrating apparatus configured to have a circulation path formed between the condenser and the condensing section, and to generate a gas flow in the circulation path through a blowing unit. A concentration outlet detecting means for detecting the completion of concentration of the concentrated liquid in the storage container, and a concentration completion display means for displaying the completion of concentration based on the detection result of the concentration completion detecting means. When,
Reset means, and when the concentration end detection means detects the end of concentration, a display is performed by the concentration end display means, operation is stopped, and the concentration end display means is operated by operating the reset means. An evaporating and concentrating apparatus characterized in that the display is canceled and the operation can be resumed.

(21) The evaporative concentrator according to the above (20), further comprising a processing amount integration display means, wherein the processing amount display is reset to zero by operating the reset means.

(22) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. An evaporating and concentrating apparatus having a circulation path formed between the condenser and the condensing unit, and configured to generate a gas flow through the air blowing means in the circulation path. An auxiliary means for repeatedly performing an inflow / outflow motion with respect to the liquid to be processed; a liquid level detection means for detecting a liquid level in the storage container; Supply means for supplying the liquid to be treated into the container;
An evaporating and concentrating apparatus characterized in that when the liquid level is detected by the liquid level detecting means, the energization of the heating means is performed.

(23) The heating means is provided in a bath tub provided outside the storage container for storing a heat medium, and the energization control for the heating means is performed in the vicinity of the heating means, in the storage tank. (2) detecting the temperature of at least one of the container, the liquid to be treated in the storage container, and the heat medium, and controlling the temperature to be constant;
The evaporative concentrator according to 2).

(24) The evaporating and concentrating apparatus according to the above (22), wherein the set temperature for the power supply control is changed depending on the integrated processing amount or the concentration of the supply liquid and / or the condensate.

(25) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. The evaporating and concentrating apparatus having a circulation path formed between the condenser and the condensing unit, and configured to generate a gas flow via a blowing unit in the circulation path, wherein the heating unit is incorporated, and A bath for storing a heat medium is provided outside the storage container, and the liquid to be treated in the storage container is heated through the heated heat medium,
Display means for displaying the supply amount of the liquid to be processed and / or the integrated processing amount of the condensed liquid is provided, and any one of the vicinity of the heating means, the storage container, the liquid to be processed in the storage container, and the heat medium is provided. Detecting the temperature, integrating the time when the temperature has become equal to or higher than the set temperature, calculating the processing amount by multiplying the processing speed coefficient per unit time, and displaying the result on the display means. An evaporative concentrator characterized by the following.

(26) A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, and a liquid evaporator. An evaporating and concentrating apparatus configured to have a circulation path formed between the condenser and the condensing section, and to generate a gas flow in the circulation path through a blowing unit. A discharge pipe including a take-out port for taking out the liquid and an on-off valve, a first temperature detecting means for detecting a temperature of the liquid to be treated in the storage container, and a second temperature detecting means for detecting a gas temperature of the circulating gas. Wherein when the first and second temperature detecting means detects that a preset temperature has been reached, operation is stopped or a display alarm is issued, and the on-off valve is opened. evaporation Condensation apparatus.

(27) A method for evaporating and concentrating photographic waste liquid using the apparatus described in (1) to (26).

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram showing the overall and basic configuration of the evaporating and concentrating apparatus 1, and FIG. 2 is a schematic diagram showing the relationship between the liquid to be treated and the auxiliary means for increasing the area of the gas-liquid interface. FIG. 3 and FIG. 3 are schematic views showing the main parts inside the heat exchanger.

In the figure, an evaporating and concentrating apparatus 1 mainly includes a liquid evaporating section (hereinafter, simply referred to as an evaporating section) 10 for evaporating a liquid to be processed (hereinafter, sometimes simply referred to as a liquid).
0 and an upper frame 20 having a function of condensing the evaporated vapor.

The upper frame 20 and the lower frame 10 are kept airtight through a suitable sealing member S such as rubber, and can be separated from each other. Can be removed).

First, the structure of the lower frame 10 will be described.

Reference numeral 2 denotes a power switch for energizing the motor 30 and the heating means H and the like, which will be described later, and a power switch for enabling activation of various actuators. Reference numeral 3 denotes an operation for executing a predetermined sequence via a control unit C to be described later. The switches 4 and 4 are reset means (reset switches) and 5 is a display unit for performing the above-mentioned switches and various displays (alarms), which are provided on the front surface of the lower frame.

The power supply to the heating means may be performed by turning on the operation switch.

The evaporator 100 in the lower frame 10
Is a storage container 110 that stores an appropriate amount of liquid, and enters and exits the liquid in the storage container by circulating motion (including rotation) and reciprocating motion (immersed in the liquid, and An auxiliary means 113 that repeats (exposed), and oil filling provided at the outer bottom or lower part of the storage vessel (between the set liquid level position and the bottom position of the storage vessel, for example, in the range of approximately 1/2 below). A heating means H (hereinafter, referred to as a heater H) including a heater, a cast heater, and the like is formed as a main component.

As shown in a second embodiment described later, the heater H is built in a bath tub provided outside the storage container 110 and stores a heat medium made of, for example, a condensed liquid stored in the bath tub. Can be used to heat the liquid in the reservoir via the reservoir.

In this configuration, the electric heating area can be increased as compared with the configuration in which the liquid is directly heated by the heater.
This is preferable because uniform heating is promoted and the temperature of the storage container is not partially increased.

The ON / OFF control of the heater H is performed based on information of a bimetal (not shown) provided near the heater.

The set temperature can be varied according to the type of the liquid to be processed or the processing capacity of the apparatus to be applied. In the embodiment, when the liquid is a photographic waste liquid (described later), the temperature is set to less than 70 ° C. Set. This is to prevent harmful and odorous hydrogen sulfide gas from being generated by thermal decomposition of the photographic waste liquid at 70 ° C. or higher.

The storage container 110 is made of stainless steel (SU).
S316 or SUS317), and the shape of the bottom of the container is similar to a part of the shape of the auxiliary means 113 or a shape similar to the movement locus. As viewed from one side, the shape gradually decreases toward the bottom. It is configured in a shape (see FIG. 4). In addition, a titanium material is also suitable for the storage container.

In the present embodiment, when viewed from the left and right side surfaces in FIG.

The auxiliary means 113 includes the storage container 110
Are supported by bearings (not shown) provided on the side walls 114 and 115 of the motor 30 so that the motor 30 rotates by receiving the rotational power of the motor 30.

The motor 30 is intermittently driven by turning on the power switch 2 and continuously driven by turning on the operation switch 3.

The motor control may be changed to the method described above, in which the power switch is turned on, the drive is intermittently driven for a predetermined time, and then the drive is continuously driven.
In such a state, it may be configured to be able to return to the continuous driving state by operating the reset means 4.

The width occupied by the auxiliary means 113 on the axis J and in the axial direction has a size occupying substantially the same width as one width of the storage container 110 (width in the left-right direction in FIG. 1). .

The auxiliary means 113 has a configuration in which a plurality of plate members 113-1 are arranged in parallel on the axis J and the positions thereof are fixed.

In the present embodiment, a large number of disc-shaped plate members 113 are perpendicular to the axis J and extend in the axial direction.
-1 (reference symbols are attached to only a few sheets) are arranged in parallel and fixed.

The fitting position of the disc-shaped plate member with respect to the shaft J may be at the center or at a position shifted from the center, but in the embodiment, it is at the center.

The disk-shaped plate members 11 adjacent to each other
The distance 3-1 (the distance between the opposing planes) is about 2 mm.

The number, shape, interval, material, etc. of the plate materials are as follows:
It can be appropriately determined according to various conditions.
mm or less, and the shape may be an appropriate shape such as a polygon.

Further, as a material, not only metals such as stainless steel, but also PPE, PPS, glass-containing P
Plastic such as P may be used. In the case of metal, the thickness is about 0.3 mm to 2 mm, and in the case of plastic, the thickness is about 0.5 mm to 3 mm.

However, the material may be thicker or thinner. In short, it is preferable that the material has no problem with the target liquid and that the thickness is smaller as long as the material has strength.

The disk-shaped plate in the embodiment was made of stainless steel having a thickness of about 0.3 mm.

The auxiliary means has a diameter of about 300 m.
m of 30 disk-shaped plate members.

The number of rotations of the disc-shaped plate is 1 to 20 rotations /
Minute is preferable, and in consideration of problems such as liquid splashing and generation of bubbles, it is more preferable to set it to 1 to 3 rotations / minute.

However, if the above-mentioned bubbles and the like can be removed, the number of rotations may be further increased.

The power transmission system from the motor 30 to the auxiliary means can be appropriately determined such as a gear train (gear connection), a combination of a pulley and a belt, a combination of a gear and a belt, a combination of a chain and a sprocket, and the like. Is wide.

FIG. 2 schematically shows the relationship between the auxiliary means 113 and the liquid level in the storage container.

That is, the axis J of the auxiliary means 113 is located slightly above the liquid level. In this embodiment, the lowermost part of the auxiliary means is very close to the bottom surface (bottom wall) of the storage container 110 (for example, 0 mm). .5 mm) or light contact.

The relationship between the lowermost part of the auxiliary means 113 and the bottom surface of the storage container 110 is as described above.
In order to minimize the sticking of the concentrated liquid (concentrate) containing the precipitates and the like which are expected to be deposited on the bottom surface of the storage container 110 with the processing of the liquid including the rotation of the auxiliary means 113 to the bottom surface. It is.

From this, it can be said that the auxiliary means 113 is also a means for rubbing against the bottom surface of the storage container, or has the function of a rubbing means.

Note that, as shown in FIG.
A part of the outer periphery of -1 may be formed with a fin in a direction intersecting with the surface of the disc-shaped plate material, and the fin may be brought into light contact with the storage container.

Also, it is conceivable that the concentrated liquid adheres to the outer diameter side (both sides of the plate material away from the axis center) of the disc-shaped plate material 113-1. For this reason, the concentrated liquid adheres to the bottom (bottom surface) in the storage container. A comb-shaped (shaped) rubbing means can be fixedly provided.

In the storage container 110, an appropriate liquid level detecting means FS (FIG. 2) such as an electrode type liquid level sensor or a float sensor is provided.
The liquid to be processed in the liquid tank 60 to be described later is supplied to the supply unit 7 based on information from the liquid level detection unit (a detection result of the liquid shortage and the presence of the liquid).
It is configured (controlled) so as to send the liquid to the storage container 110 via a zero and stop the feeding (liquid supply).

Further, based on the detection result of the liquid level detecting means FS, if a shortage of liquid is still detected after a preset operation time of the supply means 70, the operation interruption and a display alarm are displayed on the display section. 4 is performed.

The term "operation interruption" as used herein means that the supply of electric power to the heater H is cut off and the operation of the supply means is disabled. The liquid tank 6 to be processed is configured as described above.
This is because it is determined that there is no liquid to be supplied within 0 and an unexpected situation is prevented.

If the liquid level detecting means FS detects the presence of liquid after the operation of the supply means 70, the operation is automatically restarted (returned).

It is to be noted that, although related to the set operating time, the amount of liquid when the liquid is insufficient after this operating time is still a sufficient amount with respect to the processing capacity of the apparatus (for example, If it is safe to operate for 5 minutes after that)
Can be configured to first display and then stop the operation after a predetermined time has elapsed. Further, the display can be omitted. The display may be performed when the liquid level detecting means FS first detects the liquid shortage.

In the storage container, a temperature detecting means 300 (see FIG. 2) for detecting the liquid temperature is provided in the storage container 110.

Reference numeral 40 denotes a concentrated liquid recovery container provided at the lower part of the storage container 110. The concentrated liquid flowing out of an opening 117 (concentrated liquid take-out port) provided at the bottom of the storage container by the suction operation of the electromagnetic solenoid 50. I am ready to accept.

In the opening, a discharge passage (discharge pipe) having an on-off valve such as a ball valve is actually provided.

Next, the structure of the upper frame 20 will be described.

Reference numeral 21 denotes a condensing section (heat exchanging section), which comprises an axial fan F and a heat exchanger 210 as main elements.

The condensing section 21 is a place where the vapor of the liquid to be processed evaporated in the evaporating section 100 is cooled and liquefied, and a gas flow path L1 is provided between the evaporating section 100 and the heat exchanger 210.
In communication.

As means for forcibly sending steam into the flow path L1, a blowing means 230 composed of a sirocco fan (multi-blade fan) is provided.
And on the opposite side.

That is, the blowing means 230 is arranged in association with the auxiliary means so that the gas flow generated by the blowing means passes between the disc-shaped plate members 113-1 exposed from the liquid surface of the liquid. I have.

Reference numeral 303 denotes temperature detecting means for detecting the temperature of the circulating gas flowing through the flow path L1.

The temperature information from the temperature detecting means 300 for detecting the temperature of the liquid in the storage container and the temperature detecting means 303 for detecting the temperature of the circulating gas (the detection results of reaching the respective set temperatures) are as follows. It is used to detect the liquid concentration completion state in the storage container 110.

In other words, both temperature detecting means 300 and 30
Reference numeral 3 functions as a concentration completion detecting means.

The detection of the completion of the concentration of the liquid may be managed by the elapsed time of the treatment. However, in some cases, overconcentration or insufficient concentration occurs. Therefore, sludge removal maintenance becomes difficult.

The present inventor has found that evaporability changes with the progress of concentration and that a temperature change occurs. Based on this finding, the correlation between the temperature change and the progress of concentration is confirmed, and the above method is employed. As a result, it was possible to improve overconcentration and insufficient concentration.

In this embodiment, when the two temperature detecting means 300 and 303 detect that the respective temperatures have reached the set temperature, the display unit 5 displays the automatic stop of the operation and the end of the concentration. It is composed. Further, in connection with the stop of the operation, the opening / closing valve of the outlet is automatically opened.

Also in this case, it is possible to display a message indicating that the concentration has been completed in a time zone in which the concentration does not become excessive, and then stop the operation. The display may be omitted.

[0092] The term "stop operation" herein refers to the operation of supplying electricity to the heater H and supplying the supply means 70 (described later).

The operation may be automatically returned after a predetermined time. Alternatively, the display of the completion of concentration may be canceled by operating the reset means 4.
Operation may be returned.

L2 is a flow path connecting the heat exchanger 210 and the blowing means 230, and L3 is a flow path connecting the blowing means 230 and the evaporating section 100.

Although the air blow means 230 is included on the way, a gas circulation path L is formed between the evaporating section 100 and the condensing section 21 by the three flow paths L1, L2, L3 as described above. You.

The storage container 110 and the evaporator 10
0, the components formed by the heat exchanger 210 and the circulation path L, etc., and the evaporating and concentrating apparatus 1 are substantially in the form of a closed container shielded from the outside, and do not emit odor to the outside.

As shown in FIG. 3, the heat exchanger 210 communicates with an inflow path (outside air introduction means) and a discharge path (outside air discharge means) of outside air blown by the axial fan F. A passage 213, and a second passage 215 connected to the flow path L1 and the flow path L2 forming a gas circulation path,
Further, it has a drain D for discharging a condensate obtained by heat exchange.

The heat exchanger 210 has two passages 213 and 215 as described above, and both passages are constituted by covering a thin plate T bent in a zigzag shape with four walls 217.

Both ends of the thin plate T are integrated with left and right side walls 217 in the figure by bonding or the like so as not to leak gas.

The front and rear (in the direction of the front and back with respect to the paper surface) in the figure, apart from the inflow and outflow paths of the outside air by the axial fan, the second passage 215 is configured so as not to leak gas. I have.

The thin plate T may be a metal or a plastic molded product. In the embodiment, stainless steel having a thickness of about 0.1 mm is used, and the interval between adjacent plates is about 3 mm.

The structure of the heat exchanger 210 is simple,
This can contribute to miniaturization and cost reduction of the device.

Reference numeral 60 denotes a waste liquid (for example, a color negative film processing waste liquid and a color paper processing waste liquid) discharged from a photographic processing apparatus 90 such as an automatic photographic processing apparatus for processing a silver halide photographic light-sensitive material. A liquid tank to be treated (hereinafter, referred to as a waste liquid tank) for storing the mixed waste liquid) is supplied via a supply means (hereinafter, referred to as a bellows pump) 70 comprising a bellows pump to the storage container 110.
And are connected by a pipe.

It is more preferable to provide a capacity detecting means in connection with the waste liquid tank 60 since the following control can be performed.

That is, after the bellows pump 70 has been operated for a preset time, a shortage of liquid in the storage container 110 is detected by the liquid level detecting means FS. When it is detected that there is no supply liquid in the waste liquid tank 60, the occurrence of an unexpected problem can be prevented by disabling the heater H and the bellows pump 70.

The bellows pump 70 is connected to the evaporator 1
The operation is controlled based on the information (liquid shortage information) of the liquid level detection means FS provided in the storage container 110 of No. 00, and the liquid in the waste liquid tank 60 is sent into the storage container 110 for a predetermined amount or a predetermined time.

Reference numeral 80 denotes a condensate tank for storing condensate discharged through the drain D provided in the heat exchanger 210.

Although not shown, a liquid level detecting means is provided in connection with the condensed liquid tank 80. When the liquid level detecting means detects that the condensed liquid has reached a predetermined amount, the heater H and the heater H are connected. The bellows pump 70 and the bellows pump 70 are deactivated, and after a certain time from the detection, the air blowing means 230
And the operation of the condensing section 21 (essentially, an axial fan that sends outside air that functions as heat exchange means into a predetermined flow path of the heat exchanger) is stopped. this is,
Long-term, stable, odor-free operation is possible.
At this time, when the condensed liquid has reached a predetermined amount,
The display unit 5 indicates that the auxiliary unit and the condensing unit are inactive. The display is configured to use one display means and to perform different displays.

The control of the heater H, the motor 30, the bellows pump 70, the axial fan F, the electromagnetic solenoid 50 and the like, and various display means in the display section, (Central processing unit).

Next, the basic operation will be briefly described.

When the power switch 2 is turned on, the heater H and the motor 30 are energized.

Thereafter, when the operation switch 3 is turned on, the auxiliary means 113 switches from intermittent rotation to continuous rotation.

The blower 230, the axial fan F and the like start driving.

The temperature of the liquid in the storage container 110 in the evaporating section 100 gradually rises, and eventually evaporates to generate steam.

The steam receives the blast of the blowing means 230 and enters the heat exchanger 210 of the condensing section 21 via the flow path L1 constituting the circulation path L. Here, the steam moves in the second passage 215, but is blown by the axial fan F and cooled and liquefied by the outside air flowing in the first passage 213.

That is, the gas sent from the evaporator 100 and
The outside air based on the operation of the axial fan F flows into both sides of the thin plate T constituting the heat exchanger (the first passage 213 and the second passage 21).
While 5) proceeds as separate layers, heat exchange between the two occurs.

The condensed liquid obtained by the heat exchange is sequentially stored in the condensed liquid tank 80 via the drain D.

The advance movement of the auxiliary means 113 with respect to the liquid, that is, the repetitive movement (rotation) of the disc-shaped plate material immersed in the liquid and exposed from the liquid increases the area of the gas-liquid interface and increases the evaporation efficiency. And contributes to obtaining a stable evaporation amount.

Also, the concentrate (concentrated liquid) which may stick to the bottom surface of the storage container 110 is scraped off by the outer peripheral portion of the disc-shaped plate 113-1. Can be prevented as much as possible.

The basics of the control during the above processing are as follows. As the processing time elapses, the storage container 1
When the liquid in the tank 10 decreases and the information is obtained from the liquid level detecting means FS, the bellows pump 70
Is driven for a predetermined time to supply the liquid in the waste liquid tank 60 to the storage container 110.

If the liquid level detecting means FS detects the presence of the liquid within the predetermined time or immediately after the predetermined time elapses, the operation is continued. If the liquid shortage is still detected after the predetermined time elapses, The heater H and the bellows pump are deactivated (operation interrupted), and at the same time, an indication to that effect is displayed on the display unit 5.

In the configuration in which the capacity detecting means is provided in connection with the waste liquid tank 60, and the capacity detecting means detects the shortage of the liquid to be treated in the tank, the same measures as described above are taken. Do.

Further, the bellows pump 70 is automatically operated after a lapse of a predetermined time from the interruption of the operation, and when the liquid level detecting means FS indicates that there is a liquid, the reset means 4 is operated. Then, the operation is returned to the normal operation, and if the liquid is insufficient even after the lapse of the set time, the operation is interrupted and a display alarm is displayed on the display unit 5.

When the amount of condensed liquid collected in the condensed liquid tank 80 has reached a predetermined amount, the heater H and the bellows pump 70 are deactivated, and after a certain period of time from the detection, the air blowing means 230 The operations of the auxiliary means 113 and the condenser 21 are stopped.

The display section 5 indicates that the condensed liquid in the condensed liquid tank has reached a predetermined amount and that the operation of the blower means 230 and the like has been stopped. At that time, one display means is used and different displays are performed.

Then, when the amount of the concentrate is considered to be a certain amount, settled or accumulated, that is, when the temperature detecting means 300
When the temperature reaches the set temperature respectively, the control unit C controls the operation of the electromagnetic solenoid 50 and concentrates the concentrated liquid via the outlet 117 and the on-off valve. The liquid is collected in the liquid collecting container 40.

Almost at the same time as the start of the recovery operation, the heater H and the bellows pump 70 are deactivated, and at the same time,
The display unit 5 displays the completion of concentration and the non-operation of the heater H and the like.

Although the above display is useful, it need not be present.

After a lapse of a predetermined time during which the recovery operation is performed, the on-off valve is closed, the heater H is returned to the operating state by operating the reset means 4, and the bellows pump 70 is also enabled. At the same time, the display on the display unit 5 disappears.

[0130] Regarding the collection of the concentrated liquid, for example, a change in the weight of the concentrated liquid collecting container is measured, and when the amount of the concentrated liquid reaches a predetermined amount, an indication to that effect can be displayed.

The supply of the liquid to be treated based on the detection results of the liquid level detecting means FS or the liquid level detecting means FS and the capacity detecting means is performed by operating the bellows pump 70 an appropriate number of times at predetermined time intervals. After that, the operation can be stopped, and the degree of freedom in control design is wide.

FIG. 4 is a schematic view showing another embodiment.
(A) is a front view, (b) is a side view.

In the drawing, the same means (member) or means having the same function as the above-mentioned means (member) are denoted by the same reference numerals.

The configuration of FIG. 4 is basically the same as that of the first embodiment, including various controls. The major differences are that a bath having a built-in heater H is provided, that the heat medium stored in the bath is filled with condensed liquid, and that the capacity of detecting the volume of the liquid to be treated in the waste liquid tank is detected. That is, the detection means FS-1 is provided, and the processing amount integrating means for integrating the processing amount of the liquid to be processed and the processing amount display means are provided.

In the figure, the photographic processing apparatus 90, the waste liquid tank 60, the condensed liquid tank 80 and the capacity detecting means are shown only in the side view.

Further, the power switch 2, the operation switch 3,
The reset unit 4 and the display unit 5 are shown as an aggregate as one frame, and the control unit C is not shown, but they function in the same manner as in the first embodiment.

The lower frame 10 enabling the storage container 110 and the concentrated liquid recovery container 40 to be installed, and the upper frame 20 having the condensing section 21 and most of the circulation path are hermetically sealed via the sealing member S. The upper frame 20 is integrated,
The lower frame 10 is configured to be detachable.

In the storage container 110, the disk-shaped plate 1
The same auxiliary means 113 as in the first embodiment, which is constituted by arranging a number of 13-1 parallel on the axis J, is provided rotatably.

Although the axis J is buried in the liquid level in the storage container 110, the axis J may be positioned above the liquid level.

A U-shaped heater H is provided at the outer bottom (outer lower part) of the storage container 110, and the heater H is housed and held in a bathtub 120. The ON / OFF of the power supply to the heater H is configured to be performed based on information from a temperature bimetal (not shown) provided near the heater H. The set temperature of the heater H is less than 70 ° C.

Reference numeral 305 denotes a heat medium temperature detecting means for detecting the temperature of the heat medium provided in the bathtub 120.

What is provided outside the bathtub 120 is
A heat insulating member 130 having a shape similar to that of the bathtub.

The inner surface (wall) of the bathtub 120 has a shape which is in close contact with the outer surface (wall) of the storage container 110.

The bathtub 120 is provided with a heat exchanger 210 described later.
, A so-called water bath system is used.

The use of the condensate as the heat medium is disadvantageous when tap water is used, that is, the calcium or magnesium scale of the hardness component adheres to the heater H or the electric heating part to cause a decrease in electric heat. This is to avoid it.

Opening 1 provided at the bottom of storage container 110
Numeral 17 communicates with the concentrated liquid recovery container 40 via an appropriate pipe (discharge flow path) and a manual ball valve (open / close valve) B.

The discharge port including the ball valve B is:
It is configured to be detachable from the storage container 110.

The use of the ball valve B makes it possible, for example, to easily discharge the liquid containing high-concentration sludge in the evaporative concentration treatment, and contributes to low cost.

FS denotes a liquid level detecting means such as a float sensor or an electrode liquid level sensor provided in the storage container 110.

As in the first embodiment, the upper frame 10 is provided with a gas circulation path L including flow paths L1, L2, L3 and a blowing means 230 comprising a sirocco fan (multi-blade fan).
Condensing section 2 including axial fan F and heat exchanger 210
1, a motor 30 for driving the auxiliary means 113, a control means 250 for controlling liquid splashing or splashing of bubbles, and a guide member G. Reference numeral 6 denotes a tube which is provided below the flow path L2 so that a part of the condensed liquid obtained in the condensing section 21 can be dropped into the bathtub 120 by utilizing a difference in position height.

The frame having the above structure, substantially the evaporating and concentrating apparatus 1, has the form of a closed container which is shielded from the outside.
Does not emit odor to the outside.

The motor 30 is brought to the upper frame 20 side when the auxiliary member 113 is removed for cleaning or when the auxiliary member is removed for cleaning the storage container 110. The expectation is that the device will be easier to handle, and that the size of the device will be reduced due to arrangements.

Also, it is convenient to combine the means driven by electric control on the same side when repairing or the like.

The motor 30 is provided behind the guide member G by an appropriate method, and is configured to be separable (removable) from the upper frame integrally with the guide member G. Even if the mounting separation (removal) method is a slide type,
A screw type may be used, but a simple type is preferable from the viewpoint of operability.

The guide member G is connected to the auxiliary means 113.
Has a guide surface formed by an arc having a diameter larger than the outer diameter of the disc-shaped plate material 113-1. The guide member G is attached to the fixed portion of the frame with a guide surface having a predetermined gap with respect to a part of the outer periphery of the disc-shaped plate.

The flat area (separation section cross section) formed when the guide member G is removed is determined by the auxiliary means 11.
Preferably, it is larger than the plane area occupied by 3.

In other words, the opening formed when the guide member G is removed is preferably large enough to allow the auxiliary means to be taken out upward.

A flow path L1 formed between the evaporating section 100 and the condenser section 21 is formed substantially vertically upward with one side of the evaporating section as a base point. (Hereinafter, simply referred to as a filter).

This is because the liquid splashes for some reason in the advancing movement of the auxiliary means 113 with respect to the liquid, or bubbles are generated when a liquid having a particularly strong foaming property is used, and these droplets and bubbles are generated. This is to prevent as much as possible from moving on the airflow caused by the blowing means 230 and entering the flow path including the condensing portion 21 as much as possible.

By controlling the filter to prevent the droplets and / or bubbles from passing through, a desired condensate can be obtained as a result.

The filter 250 has a configuration in which many small holes (continuous holes) penetrating the filter layer are provided on the entire surface.

As the heat exchanger 210 in the condensing section 21, the heat exchanger having the configuration in the first embodiment can be applied similarly to the auxiliary means 113.

The flow path L2 and the flow path L3 are communicated via the blowing means 230. The blowing means 23
Numeral 0 is provided so that the suction port thereof is connected to the forming member of the flow path L2 which is bent leftward from the vertical direction, and exhaust gas is exhausted to the evaporating section 100 side.

That is, the air blower is installed so that the axis of rotation from the motor to the blades is in the horizontal direction.

The blowing means 230 in the longitudinal direction of the device
Is located at the evaporating section 100 or the guide member G.
And the heat exchanger 210 or the condenser 21.

It is preferable from the viewpoint of durability and the like that the rotation axis of the air blowing means 230 be set in the horizontal direction or in the downward direction from above.

Further, the wind speed of the gas from the blower fan 230 varies between the evaporator 100 and the controller.
It is preferably in the range of 0.5 m / sec to 10 m / sec,
1 m / sec to 5 m / sec is more preferable, and 1.5 m / sec to 3 m / sec.
m / sec is most preferred.

When the wind speed is less than 0.5 m / sec, the processing capacity is low, and when the wind speed is more than 10 m / sec, the liquid is liable to be scattered and easily undesirably scattered.

That is, in the above range, good control can be performed on the droplets and / or bubbles.

In the present embodiment, the control unit C (not shown) has a processing amount integrating means for integrating the processing amount of the liquid to be processed, and the display unit 5 has a display means for displaying the processing amount. . FS-3 is the condensate tank 8
This is a liquid level detecting means for detecting the liquid level of the condensed liquid recovered to zero.

In the evaporative concentrator having the above configuration,
The difference from the control in the first embodiment is as follows.

When the energization of the heater H is started, the operation switch is turned ON.
In addition, when the liquid level detecting means in the storage container 110 detects the presence of the liquid, the power can be supplied.

This configuration is for preventing the occurrence of an empty firing state such as an abnormal rise in liquid temperature.

Heat medium temperature detecting means 3 in bathtub 120
The time when the temperature of the temperature 05 becomes equal to or higher than the set temperature is integrated, and the accumulated amount is multiplied by a predetermined coefficient of the processing speed per unit time to calculate a processing amount.

With the above configuration, the processed liquid amount can be determined without providing a supply liquid amount detecting means such as a flow meter or a flow meter. In other words, this is a useful configuration that can simplify the mechanism, reduce the risk of failure, and contribute to low cost.

By operating the reset means 4, the processing amount and the processing display can be reset.

Further, in the processing, the liquid in the storage container 110 decreases with the lapse of time, and when the information is obtained from the liquid level detecting means FS, the control section C
The bellows pump 70 is driven for a predetermined time, and the waste liquid tank 6
The liquid in the chamber 0 is supplied to the storage container 110, but after a lapse of a predetermined time, the liquid shortage is still detected, and the capacity detection means FS-1 also detects that there is no liquid sufficient to supply. In this case, the heater H and the bellows pump 70 are deactivated (operation interrupted),
Is displayed to that effect.

With this configuration, it is possible to determine the suspension of the operation only once, as compared with a configuration in which the bellows pump is operated several times periodically after the lapse of the predetermined time to determine whether or not the operation is possible. is there.

Even when the operation is interrupted, the monitoring of the liquid volume in the waste liquid tank is continued, and when the supply becomes possible, the supply operation is automatically restarted and the operation is restarted. It is configured in. Such control can be easily achieved by the CPU.

Further, when the operation is stopped based on the detection of the completion of concentration from the temperature detecting means 300 and 303, the operation does not resume even if the operation switch 3 is turned on, and the operation is performed by operating the reset means 4. To resume.

This configuration is effective for preventing over-concentration due to re-operation due to forgetting to take out the concentrated liquid and clogging due to it.

Further, the temperature detecting means 30 in the storage container may be used.
When the detection result of 0 detects that the temperature approaches the temperature set in advance for the heat medium, the operation is stopped and the set temperature for the heat medium is decreased.

At the same time as the operation is stopped, a display to that effect can be made on the display unit.

This configuration is for preventing troubles such as generation of odor which may occur when the blower means 230 (including the gas-liquid contact portion of the evaporator) is abnormal.

In the calculation of the processing amount, the heat medium temperature information was used. At least one of the temperature near the heater H, the storage container, or the liquid in the storage container was measured (detected). The temperature information can be used in place of the heat medium temperature information.

Further, it is preferable that the set temperature relating to the power supply control to the heater can be changed according to the processing amount or the concentration.

As for the various controls in the first and second embodiments, mutually useful portions can be adopted.

The processing for obtaining the condensed liquid and the concentrated liquid in the evaporating and concentrating apparatus 1 having the above-described configuration is substantially the same as the processing in the first embodiment, and therefore the description thereof is omitted.

The liquid to be processed is supplied to the storage container 110 either directly from the device for discharging the liquid requiring processing or by controlling the liquid supply as in the configuration of the first embodiment. Is also good.

The control means 25 comprising the filter
Even if the configuration is such that the gas circulation path is curved instead of 0, almost the same function can be provided.

For example, as schematically shown in FIG. 5, a control plate (baffle plate) 251 having a width larger than the passage width is connected to the flow path L.
1 (which is also a circulation path), and the free end side of the control plate 251 has a projection 25
3 can be achieved.

Further, as the disk-shaped plate material 113-1 constituting the auxiliary means 113, an example in which a flat plate having an equal thickness is used has been described as an embodiment, but a configuration as shown in FIG. 6 may be employed. .

FIG. 6 is a schematic view including a partial cross section showing the structure of the auxiliary means and a power transmission system including a gear train for rotating the auxiliary means.

The means (members) given the above-mentioned reference numbers indicate the means (members) having the same or similar functions as those described above.

In the figure, a plurality of disc-shaped plate members 113-1
Are made of resin molded products, and bosses 113-3 provided at their respective central portions are fitted to the shaft J and integrated.

The shape of each disk-shaped plate material is the boss portion 113-3 at the center portion and a portion which is thicker by an appropriate width in the radial direction from the maximum outer diameter (hereinafter, this portion is referred to as a fin portion). ) 113-5.

The distance between adjacent disk-shaped plate members is basically maintained by the thickness of the boss portion 113-3. If the thickness of the boss portion cannot be obtained, the predetermined interval can be maintained by disposing a spacer made as a separate member between the disc-shaped plate members.

Apart from the bosses, an appropriate number of projections (projections) are formed at appropriate places on the respective disc-shaped plate members, and the projections are used together with the bosses as a means for regulating the distance. It can also be used for

The fin portion 113-5 is connected to the boss portion 113.
-3, and has a shape protruding in one direction (left direction in the figure) with respect to the thin plate portion.

A hole (not shown) is formed in the fin portion 113-5.
Are provided, and the shafts J1 and J2 are fitted in the holes.

The two ends of the shafts J1 and J2 are opposed to each other by a disk 11 provided so as to face the plurality of disk-shaped plate members.
9 support.

According to the above configuration, the axial gap in the outer peripheral portion of the disk-shaped plate is reduced.

That is, by the rotation of the disc-shaped plate material 113-1, it is possible to minimize the solidification of the concentrated liquid at the bottom of the storage container 110 or the reduction of sticking.

The disc 119 is fixed to the shaft J via a pin or the like. The disk 119 is a disk with a gear having a diameter slightly smaller than that of the disk-shaped plate member 113-1 and having a tooth profile on an outer peripheral portion thereof (hereinafter, referred to as a disk with a gear).

The axis J1 and the like are located at appropriate positions in the circumferential direction of the disk-shaped plate member (for example, positions at which the circumference is divided into three).
However, it can be omitted according to various conditions such as the size and strength of the disc-shaped plate material 113-1.

J5 is another shaft, which is the disk 119 with gears.
Gears G1 and G2 are provided on the shaft thereof, and a gear G3 meshes with a gear provided on the rotation shaft of the motor 30.

[0207] The above structure is used when the structure including the motor 30 together with the guide member G (the integrally assembled structure) is removed, or when the upper frame 20 is removed from the lower frame 10, the motor gear and the gear G3 are removed. Easy separation between gears and good operability.

The fin portion 113-5 of the disc-shaped plate material
Has a shape protruding left and right across the thin plate portion (FIG. 7).
May be partially shown), and it is not necessary to provide a fin on the entire outer periphery. Also, the flapping of the outer peripheral part
The fin portion may be slightly incorporated as long as there is no problem, and the fin portion may be incorporated with different phases between adjacent disc-shaped plate members.

Further, the auxiliary means composed of a plurality of disk-shaped plate members can be performed not only by a simple rotation but also by a combination of an axial movement of about several mm.

For example, the shaft J is urged in one direction by an urging means such as a spring, and is moved in the axial direction by a chevron cam or the like against the urging force of the urging means. Can be achieved.

Further, as described in the description of the first embodiment, the shape of the auxiliary means is not limited to a disk shape as long as a processing ability suitable for the purpose can be obtained.

There is no limitation on the exercise system of the auxiliary means.

The evaporative concentration apparatus represented by the above embodiment is extremely useful as an evaporative concentration apparatus having a throughput of 2.0 liters per unit time, particularly 1.0 liter / hour or less. Yes, it is suitable for evaporating volatile components from a liquid to be processed containing a non-volatile component to obtain a precipitate of the non-volatile component or a solution having a high non-volatile component. Particularly, a processing solution for a silver halide photographic light-sensitive material. It is suitable for evaporating and concentrating waste liquid.

[0214]

The structure is simple, so that the apparatus can be miniaturized. In addition, it can be manufactured at low cost, consumes little energy, and can maintain hermeticity, so that odorous liquids can be treated with confidence. it can.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing the overall configuration of an evaporative concentration device.

FIG. 2 is a schematic diagram showing a relationship between a liquid to be processed and an auxiliary means for increasing an area of a gas-liquid interface.

FIG. 3 is a schematic diagram showing an internal main part of the heat exchanger.

FIG. 4 is a schematic view showing another embodiment.

FIG. 5 is a partial view showing a configuration for bending a gas circulation path.

FIG. 6 is a schematic diagram showing a configuration of an auxiliary unit and a power transmission system including a gear train for rotating the auxiliary unit.

FIG. 7 is a partial view showing the shape of another fin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Evaporation concentrating apparatus 10 Lower frame 20 Upper frame 21 Condenser 30 Motor 40 Concentrated liquid recovery container 50 Electromagnetic solenoid 60 Liquid tank to be processed 70 Supply means 80 Condensed liquid tank 90 Automatic developing apparatus for photography 100 Evaporator 110 Storage container 113 Auxiliary means 113-1 Disc-shaped plate material 114, 115, 217 Left and right side walls 117 Opening 210 Heat exchanger 213, 215 Passage 230 Blowing means B Ball valve C Control unit D Drain F Axial fan G Guide member H Heating means J, J1 , J2, J5 axis L circulation path L1, L2, L3 flow path

Claims (27)

[Claims] A liquid evaporating section including a storage container for storing the liquid to be processed, a condensing section for liquefying the vapor evaporated in the liquid evaporating section to obtain a condensed liquid, and a liquid evaporating section and the condensing section. An evaporating and concentrating apparatus having a circulation path formed therebetween, and configured to generate a gas flow through a blowing unit in the circulation path, wherein a heater is incorporated, and a part of the condensate is removed. An evaporating and concentrating apparatus, wherein a bath for storing is provided outside the storage container, and the liquid to be treated in the storage container is heated via the heated condensate. 2. The condensing part is located at a position higher than the liquid evaporating part, and a part of the condensed liquid is automatically brought into the bath tub by its head. 2. The evaporative concentrator according to 1. 3. The evaporating and concentrating apparatus according to claim 1, further comprising an auxiliary means for repeating an inflow / outflow motion with respect to the liquid to be processed stored in the storage container. 4. The assisting means comprises a plurality of plate members arranged coaxially in parallel at a predetermined interval.
5. The evaporative concentrator according to item 2. 5. The method according to claim 1, wherein the auxiliary unit is substantially perpendicular to an axis.
And, while being constituted by a plurality of disc-shaped plate members arranged in parallel at a predetermined interval, a fin portion that comes into close or light contact with the bottom surface of the storage container when rotating is provided on the outer periphery of the disc-shaped plate member. The evaporative concentrator according to claim 3, wherein: 6. A liquid evaporating unit including a storage container for storing a liquid to be processed, a condensing unit for liquefying vapor evaporated in the liquid evaporating unit to obtain a condensed liquid, and a liquid evaporating unit and a condensing unit. In the evaporating and concentrating apparatus having a circulation path formed therebetween and in the circulation path, configured to generate a gas flow via a blowing means, for the liquid to be treated stored in the storage container, Auxiliary means provided so as to repeat the rotational in / out movement, a fin provided in the auxiliary means so as to come into close or light contact with the bottom surface of the storage container during rotation, and a cast heater provided outside the lower part of the storage container An evaporating and concentrating device, comprising: a concentrated liquid outlet provided at the bottom of the storage container. 7. A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, the liquid evaporator and the liquid evaporator. An evaporating and concentrating apparatus having a circulation path formed between the condenser and the condensing unit, and configured to generate a gas flow via a blowing unit in the circulation path. A first temperature detecting means for detecting a temperature of the circulating gas; and a second temperature detecting means for detecting a gas temperature of the circulating gas. When the first and second temperature detecting means detect that a preset temperature has been reached, an operation is performed. An evaporative concentrator characterized by being configured to stop or display an alarm. 8. The evaporating and concentrating apparatus according to claim 7, wherein the condensing section has a heat exchanger that performs steam cooling with outside air. 9. An auxiliary means comprising a plurality of disk-shaped plate members arranged substantially perpendicular to an axis and at predetermined intervals in parallel with each other, wherein said disk-shaped member is provided inside said storage container. The auxiliary means and the air blowing means are configured so as to repeat a rotating in / out movement with respect to the liquid to be processed, and so that the circulating gas passes between the disc-shaped plate members exposed from the liquid surface of the liquid to be processed. The evaporating and concentrating apparatus according to claim 7, wherein the evaporating and concentrating apparatus is arranged in association with: 10. A liquid level detecting means for detecting a liquid level in the storage container, and a supply means for automatically supplying a liquid to be processed to the storage container based on a detection result of the liquid level detecting means. Wherein the first and second temperature detecting means are configured to deactivate the heating means and the supply means for a predetermined time when detecting that the temperature reaches a preset temperature. The evaporative concentration apparatus according to claim 7, wherein 11. A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensed liquid; An evaporating and concentrating apparatus having a circulation path formed between the condenser and a condensing unit, wherein the evaporating and concentrating apparatus is configured to generate a gas flow through a blowing unit in the circulation path, wherein a liquid level in the storage container is detected. Liquid level detection means, and supply means for automatically supplying the liquid to be processed from the liquid tank to be processed to the storage container based on the detection result of the liquid level detection means, An evaporative concentrator characterized in that if a shortage of liquid is detected even after a preset operating time of the supply means based on the detection result, the operation is interrupted and a display alarm is issued. 12. A liquid supply device according to claim 11, further comprising: a capacity detection unit configured to detect a liquid volume in the liquid tank to be processed, wherein a liquid shortage occurs even after a preset operation time of the supply unit based on a detection result of the liquid level detection unit. In the case where the detection is performed and the detection result of the capacity detection unit is a detection result that there is no liquid amount that can be supplied, the heating unit and the supply unit are configured to be inoperative. The evaporative concentration apparatus according to claim 11, wherein 13. A supply means is automatically operated after a lapse of a set time from the interruption of the operation, and when the detection result of the liquid level detection means indicates that there is a liquid, the operation is returned to a normal operation, and the operation is continued for a preset time. 2. The apparatus according to claim 1, wherein the operation is interrupted or stopped and a display alarm is issued when the result of detection by the liquid level detecting means becomes insufficient.
2. The evaporative concentrator according to 1. 14. A liquid evaporating unit including a storage container for storing a liquid to be processed, a condensing unit for liquefying the vapor evaporated in the liquid evaporating unit to obtain a condensed liquid, and a liquid evaporating unit and the condensing unit. An evaporating and concentrating apparatus having a circulation path formed therebetween, and configured to generate a gas flow through a blowing means in the circulation path, wherein a bathtub containing a heater and storing a heat medium is provided. A first temperature detection unit that is provided outside the storage container and configured to heat the liquid to be processed in the storage container via the heated heat medium, and that detects a temperature of the liquid to be processed in the storage container; Means for detecting the temperature of the heating medium, and stopping the operation when the temperature detection result of the first temperature detecting means detects that the temperature of the heating medium approaches a preset temperature of the heating medium. Or display alarm The evaporating and concentrating apparatus is characterized in that the set temperature for the heat medium is lowered and the energization control for the heater is changed. 15. The evaporating and concentrating apparatus according to claim 14, wherein a temperature bimetal is provided near the heater, and when the temperature bimetal is equal to or higher than a set temperature, power supply to the heater is cut off. 16. A liquid evaporator including a heating means and a storage container for storing a liquid to be processed, a condenser for obtaining a condensate via a heat exchange means for cooling and liquefying the vapor evaporated in the liquid evaporator, An evaporating and concentrating apparatus having a circulation path formed between the liquid evaporating section and the condensing section, and configured to generate a gas flow through a blowing unit in the circulation path. Auxiliary means for repeatedly carrying out the in-out movement to and from the liquid to be processed, a liquid level detecting means for detecting the liquid level in the storage container, and Supply means for supplying the liquid to be treated in a storage container, a condensate tank for storing the condensate flowing out of the condensing section, and a liquid level detection means for detecting a liquid level in the condensate tank,
When the liquid level detection means detects that the condensed liquid has reached a predetermined amount, the heating means and the supply means are disabled, and after a certain time has passed from the detection, the blowing means, the auxiliary means And an evaporating and concentrating apparatus characterized in that the operation of the heat exchange means is stopped. 17. An indication that the condensate has reached a predetermined amount,
17. The evaporative concentrator according to claim 16, wherein the display of the operation stop of the blowing unit, the auxiliary unit, and the heat exchanging unit is performed with different displays by one display unit. 18. A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, the liquid evaporator and the liquid evaporator. An evaporating and concentrating device having a circulation path formed between the condenser and the condensing section, and configured to generate a gas flow in the circulation path via a blowing means, comprising: a power switch, an operation switch, and a motor drive. And an auxiliary means for repeatedly performing an inflow / outflow motion with respect to the liquid to be processed in the storage container, wherein the motor is configured to be intermittently driven or continuously driven in a power-on state. Evaporating concentrator. 19. The apparatus according to claim 19, wherein the motor is configured to be continuously driven when the operation is on, and is configured to be intermittently driven when the operation is off, and is configured to be able to be continuously driven when the operation is off. 19. The evaporative concentrator according to 18. 20. A liquid evaporating section including a heating means and a storage container for storing the liquid to be processed, a condensing section for liquefying the vapor evaporated in the liquid evaporating section to obtain a condensed liquid; An evaporating and concentrating apparatus having a circulation path formed between the condenser and a condensing section, and configured to generate a gas flow through a blowing unit in the circulation path. Providing a takeout port for taking out, concentration completion detection means for detecting the concentration completion of the concentrated liquid in the storage container, concentration completion display means for displaying the concentration completion based on the detection result of the concentration completion detection means, And reset means. When the concentration completion detecting means detects the completion of concentration, a display is performed by the concentration completion display means, the operation is stopped, and the reset means is operated. Evaporative concentration apparatus according to claim together cancels the display of the concentrated end indication means that is configured to a state to resume the operation. 21. The evaporating and concentrating apparatus according to claim 20, further comprising a processing amount integration display means, wherein the processing amount display is reset to zero by operating the reset means. 22. A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, the liquid evaporator and the liquid evaporator. An evaporating and concentrating device having a circulation path formed between the condenser and the condensing section, wherein the evaporating and concentrating apparatus is configured to generate a gas flow in the circulation path via a blowing means; Auxiliary means for repeatedly entering and exiting the processing liquid, liquid level detecting means for detecting a liquid level in the storage container, and a storage tank from the liquid tank to be processed based on the detection result of the liquid level detecting means. Supply means for supplying a liquid to be processed into the heating means, and when the operation switch is turned on, when the liquid level detection means detects the presence of liquid, the power supply to the heating means is performed. An evaporative concentrator characterized by being constructed . 23. The heating means is disposed in a bath tub provided outside the storage container and storing a heat medium, and energization control for the heating means is performed in the vicinity of the heating means.
23. The evaporative concentrator according to claim 22, wherein at least one temperature of the storage container, the liquid to be treated in the storage container, and the heat medium is detected, and the temperature is controlled to be constant. apparatus. 24. The evaporating and concentrating apparatus according to claim 22, wherein the set temperature for the energization control is changed according to an integrated processing amount or a concentration of the supply liquid and / or the condensate. 25. A liquid evaporator including a heating unit and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensed liquid, the liquid evaporator and the liquid evaporator. An evaporating and concentrating apparatus having a circulation path formed between the condenser and a condensing unit, and configured to generate a gas flow via a blowing unit in the circulation path. A bath for storing a medium is provided outside the storage container, the liquid to be processed in the storage container is heated via the heated heat medium, and the supply amount of the liquid to be processed and / or condensate A display means for displaying the integrated processing amount of the storage means, detecting the temperature of any one of the vicinity of the heating means, the storage container, the liquid to be processed in the storage container, and the heat medium, and setting the temperature to a set temperature. Accumulate the time of the above, An evaporating and concentrating apparatus characterized in that a processing amount is calculated by multiplying by a coefficient of a processing speed per unit time, and the result is displayed on the display means. 26. A liquid evaporator including a heating means and a storage container for storing the liquid to be processed, a condenser for liquefying the vapor evaporated in the liquid evaporator to obtain a condensate, the liquid evaporator and the liquid evaporator. An evaporating and concentrating apparatus having a circulation path formed between the condenser and a condensing section, and configured to generate a gas flow through a blowing unit in the circulation path. A discharge pipe including a take-out port and an on-off valve for taking out is provided, and a first temperature detecting means for detecting a temperature of the liquid to be treated in the storage container and a second temperature detecting means for detecting a gas temperature of the circulating gas are provided. Wherein when the first and second temperature detecting means detects that a preset temperature has been reached, operation is stopped or a display alarm is issued, and the on-off valve is opened. concentrated apparatus. 27. A method for evaporating and concentrating photographic waste liquid using the apparatus according to claim 1. Description: