JP2013123651A - Waste solution treatment apparatus, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste solution treatment apparatus capable of easily discarding a condensed waste solution, and a method for manufacturing the same.SOLUTION: The waste solution treatment apparatus 1 is constituted so as to heat the waste solution and evaporate the liquid component of the waste solution to perform condensation and includes a heating outer pot 30 formed of a magnetic material, a lid for hermetically closing the heating outer pot 30, an induction heating means 32 for generating AC magnetic flux in the heating outer pot 30 and subjecting the heating outer pot 30 to induction heating from the outside by hysteresis loss generated in the heating outer pot 30, a control part 38 for controlling the induction heating means 32, and the condensation accelerating inner pot 39 arranged in the heating outer pot 30 so that the outside surface thereof almost coincides with the inside surface of the heating outer pot 30 and internally receiving the waste solution to be condensed. The condensation accelerating inner pot 39 is formed of metal foil and an eddy current flows through the inner pot 39 by the induction heating of the induction heating means 32 and the inner pot is heated to temperature higher than the heating outer pot 30 by the Joule heat thereof.

Description

The present invention relates to a waste liquid treatment apparatus, and more particularly, to a waste liquid treatment apparatus that heats a waste liquid to evaporate a liquid component of the waste liquid to condense, and a manufacturing method thereof.
In this specification, “waste liquid” means, for example, water-based cutting oil waste liquid, alkali cleaning waste liquid, carbon polishing powder waste liquid, coating waste liquid, plating waste liquid, glasses polishing waste liquid, pharmaceutical company process waste liquid, food-related food-related It means various waste liquids such as waste liquid, ramen soup waste liquid, boiled udon soup, and is not limited to these waste liquids. Further, in this specification, “dehydration” generally means removing liquid components contained in the waste liquid, and the liquid removed from the waste liquid is not limited to water.

It is known that the waste liquid is expensive in proportion to the volume or weight of the waste liquid when the waste liquid is processed as industrial waste. Thus, in industries that discharge a large amount of waste liquid, restaurants, and the like, it is possible to reduce waste liquid processing costs by reducing the volume of the waste liquid. As a method of reducing the volume of such waste liquid, for example, there is a method of heating the waste liquid to evaporate water in the waste liquid to reduce the volume and weight of the waste liquid.
The waste liquid concentrating device for heating the waste liquid conventionally used in such a method is an apparatus in which a heater is directly put into the waste liquid in a waste liquid tank having an upper opening. The heater is configured to directly heat the waste liquid around the heater to evaporate water in the waste liquid.

As described above, when the heater directly heats the waste liquid around the heater, there is a problem that only the waste liquid around the heater is easily solidified, and deposits adhere to the heater and become overheated, causing the heater to burn out.
In addition, when the surrounding waste liquid is concentrated by the heater, depending on the type and viscosity of the waste liquid, the waste liquid does not reach condensation and a large amount of water remains in the waste liquid, and deposits remain on the bottom of the waste liquid tank or the heater with high viscosity. There was a problem that it was difficult to peel off because it was firmly fixed (strong adhesion), and a great work to remove this deposit was necessary.
Therefore, a waste liquid treatment apparatus having a configuration that solves these problems is desirable, but when a new waste liquid treatment apparatus that can solve all of the problems is manufactured, there is a problem that a very large manufacturing cost is required. .

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and an object thereof is to provide a waste liquid treatment apparatus that can easily dispose of condensed waste liquid and a method for manufacturing the same. Yes.

In order to achieve the above-described object, the present invention provides a heated outer pot formed of a magnetic material, and a heated outer pot in a waste liquid treatment apparatus that condenses by evaporating liquid components of the waste liquid by heating the waste liquid. An induction heating means for generating an alternating magnetic flux in the heating outer pot, induction heating means for induction heating the heating outer pot from the outside due to hysteresis loss generated in the heating outer pot, and a control unit for controlling the induction heating means, A condensation promoting inner pan that is disposed in the heating outer pan so that the outer side substantially matches the inner side of the heating outer pan, and that accepts the waste liquid to be condensed inside, and the condensation promoting inner pan is formed of metal foil. An eddy current flows inside by induction heating of the induction heating means, and it is heated to a temperature higher than the temperature of the heating pan by the Joule heat.
In this invention comprised in this way, the magnetic flux which alternates with an induction heating means is formed in a heating outer pan, and is induction-heated by the hysteresis loss of a magnetic body. On the other hand, in the condensation promoting inner pot, an eddy current flows in the foil by the induction heating means and is heated by the Joule heat, and becomes higher temperature than the heating outer pot. For this reason, the liquid component of the waste liquid accommodated in the condensation promotion inner pot is rapidly evaporated, and the condensation of the waste liquid is promoted. Further, according to the waste liquid treatment apparatus of the present invention, the waste liquid can be condensed until it is dried. In such a case, it is possible to prevent the waste liquid from adhering to the heating pan while having a high viscosity and becoming difficult to peel off, and to improve the workability of the waste liquid treatment.

In the present invention, preferably, the condensation promoting inner pot is a disposable inner pot configured to be melted at a high temperature by induction heating by induction heating means.
In the present invention configured as described above, the condensation promoting inner pot becomes so hot that it is melted by induction heating by the induction heating means, so that the liquid component of the waste liquid contained therein can be evaporated more rapidly. And can promote condensation.

In the present invention, preferably, the condensation-promoting inner pot is further formed of a foil having a thickness of 0.005 mm to 0.05 mm.
In the present invention configured as described above, the condensation promoting inner pot is formed of a foil having a thickness of 0.005 mm to 0.05 mm. Therefore, since the cross-sectional area of the conductor is small and the electric resistance is large, Joule It is heated strongly by heat and heated to a temperature higher than the temperature of the heating pan, and the condensation of the waste liquid contained therein can be promoted.

In this invention, Preferably, the condensation promotion inner pot is further characterized by being formed with the aluminum foil.
In the present invention configured as described above, since the condensation promotion inner pot is formed of aluminum foil, the condensation promotion inner pot that can be strongly induction-heated by induction heating means is easily formed at low cost. be able to.

In the present invention, preferably, a temperature sensor that detects the temperature of the heating pan is further provided, and the control unit heats the waste liquid until the temperature sensor detects a predetermined temperature, and concentrates the waste liquid. After the concentration step, the induction heating means is controlled so that a condensation step in which the temperature of the waste liquid is lowered and reheating to a predetermined temperature is repeated.
In the present invention configured as described above, the controller of the waste liquid treatment apparatus heats the waste liquid until the temperature sensor detects a predetermined temperature to concentrate the waste liquid, and after this concentration process, The induction heating means is controlled so that a condensation process in which the temperature reduction and reheating to a predetermined temperature are repeated is executed. Thereby, the liquid component in a waste liquid can fully be evaporated, suppressing the excessive temperature rise of a heating outer pan.

In the present invention, preferably, it further comprises a waste liquid tank for storing the waste liquid, and a waste liquid supply pump installed in a waste liquid communication means for communicating the waste liquid tank and the condensation promotion inner pot, and the control unit includes the waste liquid supply pump. It is characterized by controlling and introducing waste liquid into a condensation promotion inner pot before the start of the concentration process, and additionally supplying waste liquid to the condensation promotion inner pot during the concentration process.
In the present invention configured as described above, the control unit controls the waste liquid supply pump to introduce the waste liquid into the condensation promotion inner pot before the start of the concentration process, and to dispose the waste liquid into the condensation promotion inner pot during the concentration process. Additional supply. Therefore, it becomes possible to additionally process a larger amount of waste liquid than can be supplied to the condensation promotion inner pot at a time.

In the present invention, preferably, the antifoam agent tank for storing the antifoam agent, the additive tank for storing the additive, and the antifoam agent communication means for connecting the antifoam agent tank and the condensation promoting inner pot. An antifoam supply pump installed, and an additive supply pump installed in an additive communication means for communicating the additive tank and the condensation promotion inner pan, the control unit includes an antifoam supply pump and an addition It is characterized in that the defoaming agent and the additive are introduced into the condensation promoting inner pot by controlling the agent supply pump.
In the present invention configured as described above, the control unit can drive the antifoaming agent supply pump to supply the antifoaming agent to the condensation promoting inner pot, and can drive the additive supply pump to promote condensation of the additive. Can be supplied to the inner pot. Accordingly, when the large volume waste liquid is condensed while supplying the waste liquid from the large volume waste liquid tank to the condensation promoting inner pot, the control unit can control the supply of the antifoaming agent and / or the additive. Therefore, it is possible to condense a large volume of waste liquid while supplying the antifoaming agent and / or additive.

In the present invention, it is preferable that the apparatus further comprises a vapor condensing device connected to the condensation promoting inner pan for condensing vapor evaporated from the heated waste liquid.
In the present invention configured as described above, the waste liquid vapor is condensed by the vapor condensing device communicated with the condensation promoting inner pot. Therefore, harmful substances contained in the waste liquid vapor can be prevented from being directly released to the outside air.

The method for producing a waste liquid treatment apparatus according to the present invention is a method for producing a waste liquid treatment apparatus, which comprises a rice cooker for containing waste liquid, a lid for sealing the rice cooker, and induction heating means provided outside the rice cooker. And a step of preparing an induction heating rice cooker comprising a temperature sensor for detecting the temperature of the rice cooker, and a control unit for controlling the heating means based on the detection of the temperature of the temperature sensor, Condensation process to condense the waste liquid by heating the waste liquid until the sensor detects the predetermined temperature and concentrating the waste liquid, and after this concentration process, repeatedly reducing the temperature of the waste liquid and reheating to the predetermined temperature. The step of modifying the program of the control unit to execute, and almost coincide with the inner surface of the rice cooker, is formed of metal foil so as to contain the waste liquid, eddy current flows inside by the induction heating means, Due to its Joule heat Is characterized by comprising the steps of: preparing a configured condensed promoted in the pot as it is heated a temperature higher than the temperature of the cooking pot.
In the present invention configured as described above, by using an induction heating rice cooker for rice cooking, by preparing a condensation promoting inner pot formed of metal foil, a waste liquid treatment device can be manufactured. The waste liquid treatment apparatus can be easily manufactured, and the production cost of the waste liquid treatment apparatus can be greatly reduced.

  According to the waste liquid treatment apparatus of the present invention, the condensed waste liquid can be easily discarded.

It is a figure explaining the structure of the waste-liquid processing apparatus of this invention. It is a schematic perspective view of the heating outer pan and the condensation promotion inner pan of the waste liquid treatment apparatus of the present invention. It is a figure explaining the effect | action of the waste-liquid processing apparatus of this invention.

Hereinafter, a waste liquid treatment apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram for explaining the configuration of the waste liquid treatment apparatus of the present invention, FIG. 2 is a schematic perspective view of a heating outer pot and a condensation promoting inner pot of the waste liquid treatment apparatus of the present invention, and FIG. It is a figure explaining the effect | action of the waste-liquid processing apparatus of invention.
As shown in FIG. 1, the waste liquid treatment apparatus 1 includes a waste liquid tank 2, an antifoaming agent tank 4, an additive tank 6, a vapor condensing tank 8, and a waste liquid treatment apparatus main body 10.

The waste liquid tank 2 is a large capacity tank that can store the waste liquid to be dehydrated.
The antifoaming agent tank 4 is a tank that stores the antifoaming agent. The antifoaming agent is a waste liquid antifoaming agent, and for example, a silicon-based antifoaming agent or the like can be used as the antifoaming agent.
The additive tank 6 is a tank that stores the additive. The additive is a waste liquid odor prevention agent, and as the additive, for example, an aqueous citric acid solution for adjusting pH, acetic acid, caustic soda, or the like can be used.
The vapor condensing tank 8 is a vapor condensing tank that liquefies and condenses the steam generated in the waste liquid processing apparatus main body 10 and collects it. The vapor condensing tank 8 contains, for example, water up to a predetermined water level. The vapor is led into the liquid in the vapor condensing tank 8 and liquefied and condensed. The vapor condensing tank 8 is configured such that the liquid distillate in the vapor condensing tank 8 is allowed to flow into the sewage or reused. The waste liquid treatment apparatus main body 10 and the steam condensing tank 8 are communicated with each other through a steam pipe 12. One end of the steam pipe 12 is opened in the liquid of the steam condensing tank 8. The vapor condensing tank 8 can also prevent harmful substances contained in the waste liquid vapor from being directly released to the outside air. In order to prevent a back flow from the steam condensing tank 8 to the waste liquid processing apparatus main body 10 when the pressure on the waste liquid processing apparatus main body 10 side decreases, a backflow prevention valve, a vacuum breaker, or the like may be provided on the steam pipe 12. good.

The waste liquid tank 2 and the waste liquid processing apparatus main body 10 are communicated with each other through a waste liquid pipe 16 (waste liquid communication means) via a waste liquid supply pump 14. The waste liquid supply pump 14 can be driven by a control unit to be described later, and the waste liquid supply pump 14 can drive the waste liquid from the waste liquid tank 2 to the waste liquid processing apparatus main body 10. The communication means may be any means capable of fluid communication such as a pipe and a hose.
The antifoaming agent tank 4 and the waste liquid treatment apparatus main body 10 are communicated with each other by an antifoaming agent pipe 20 (antifoaming agent communicating means) via an antifoaming agent supply pump 18. The antifoaming agent supply pump 18 can be driven by a control unit described later, and the antifoaming agent can be supplied from the antifoaming agent tank 4 to the waste liquid treatment apparatus main body 10 by driving the antifoaming agent supply pump 18. The communication means may be any means capable of fluid communication such as a pipe and a hose.
The additive tank 6 and the waste liquid treatment apparatus main body 10 are communicated by an additive pipe 24 (additive communication means) via an additive supply pump 22. The additive supply pump 22 can be driven by a control unit described later, and the additive supply pump 22 can drive the additive from the additive tank 6 to the waste liquid processing apparatus main body 10. The communication means may be any means capable of fluid communication such as a pipe and a hose.

Next, details of the waste liquid processing apparatus main body 10 will be described. The waste liquid treatment apparatus main body 10 heats the waste liquid to be dehydrated to evaporate the liquid components in the waste liquid, and concentrates and condenses (including a condensed state with moisture remaining and a condensed state in which it is completely dried and solidified). Configured.
The waste liquid processing apparatus main body 10 includes a lid 26, a waste liquid processing apparatus main body case 28, a heating outer pot 30, an induction heating means 32, a temperature sensor 34, a liquid level sensor 36, a control unit 38, and a condensation promoting inner pot 39. With.

  The lid 26 is formed in a disc shape and can form a sealed space in the heating outer pot 30 in alignment with the upper cylindrical edge of the heating outer pot 30. The lid 26 is formed of a heat-resistant and pressure-resistant material that can withstand even when the inside of the heating pan 30 becomes high temperature and pressure when the waste liquid is heated. The lid 26 can be removed from the waste liquid processing apparatus main body 10 to perform work such as cleaning or replacement. The steam pipe 12, the waste liquid pipe 16, the antifoaming pipe 20, and the additive pipe 24 are arranged so as to penetrate the inner space of the condensation promoting inner pot 39 from the outside of the lid 26 through the lid 26.

  The waste liquid processing apparatus main body case 28 is a case in which the heating outer pan 30, the induction heating means 32, the temperature sensor 34, the control unit 38, the condensation promotion inner pan 39, and the like are installed inside. A control panel, which will be described later, is installed outside the waste liquid processing apparatus main body case 28.

The outer heating pan 30 has a cylindrical pan shape with an open top, and is formed of a heat-resistant and pressure-resistant magnetic material. Therefore, the heating pan 30 can withstand high temperatures and high pressures when the waste liquid is heated. Furthermore, an alternating magnetic field is generated inside the heating outer pan 30 made of a magnetic material by the induction heating means 32, and hysteresis loss due to magnetization occurs. This hysteresis loss is converted into heat energy, and the heating pan 30 is heated by electromagnetic induction.
The heating outer pan 30 is formed with a Teflon (registered trademark) coating processing (fluorine resin Teflon coating processing) layer on almost the entire inner surface of the heating outer pan 30. It is electrically insulated. Furthermore, since the surface of the heating pan 30 is subjected to an anti-adhesion process such as a Teflon coating process, it is possible to more reliably prevent the condensed waste liquid from adhering.

In the present embodiment, the heating pan 30 is set to have a diameter of about 390 mm and has a capacity capable of accommodating about 6 liters of liquid. In addition, a condensation promoting inner pot 39 is disposed inside the heating outer pot 30.
The heating pan 30 is configured to be removable from the waste liquid processing apparatus main body case 28. Accordingly, the user removes the heating pan 30 from the waste liquid processing apparatus main body 10 after the waste liquid is concentrated and condensed (including the condensed state with moisture remaining and the condensed state in which it is completely dried and solidified). For example, it is easy to clean and replace.

  The induction heating means 32 is provided in the lower part outside the heating pan 30 and inside the waste liquid processing apparatus main body case 28. The induction heating means 32 is an IH (Induction Heating) in which an alternating current having a specific frequency obtained from an external AC power source (not shown) via an inverter (not shown) is arranged on the bottom and side surfaces in the induction heating means. ) Generate a magnetic flux that flows through a coil (not shown) and alternates with the same frequency as the alternating current, and induces the heating outer pan 30 and the condensation promoting inner pan 39 using the principle of electromagnetic induction by the time change of the magnetic flux. Means for heating. Therefore, the induction heating means 32 can adjust the on / off of the induction heating means and the heating intensity in detail according to the energization state of electricity. The induction heating means 32 has a 100% rated output of 5 kW, and the output can be adjusted every 50 w within a range of 2 kW to 5 kW. Furthermore, it is possible to adjust the energization rate% of the induction heating means 32. Here, since the induction heating means 32 is provided outside the heating pan 30, there is a merit that the waste liquid does not come into contact with the waste liquid.

  The temperature sensor 34 is a detector that detects temperature. The temperature sensor 34 is sandwiched and placed between the lower portion of the heating pan 30 and the induction heating means 32, and detects the temperature of the heating pan 30.

  The liquid level sensor 36 is inserted into the heating outer pot 30 from the outside of the lid 26 and is configured to detect the height of the liquid level of the waste liquid in the condensation promoting inner pot 39. The liquid level sensor 36 can be constituted by, for example, a float type sensor or an electrode rod.

The control unit 38 is a microcomputer installed in the waste liquid processing apparatus main body 10 and controls connected components by electrical signals in accordance with instructions of a program written in a memory or ROM of the microcomputer.
The control unit 38 is electrically connected to the lid 26, the induction heating means 32, the temperature sensor 34, the liquid level sensor 36, the control panel 40, the waste liquid supply pump 14, the antifoaming agent supply pump 18, the additive supply pump 22, and the like. ing.
The control unit 38 controls the induction heating unit 32 from information such as the temperature sensor 34, the liquid level sensor 36, and the control panel 40 input, for example. It is also possible to arbitrarily connect the control unit 38 to other components such as a safety device.

  The program 41 of the control unit 38 is a command program that controls the control unit 38 of the waste liquid treatment apparatus 1. Controlling the waste liquid treatment apparatus 1 means controlling each component of the waste liquid treatment apparatus 1 so that the waste liquid can be dehydrated and condensed as described below. As will be described later, the program 41 controls the heating means so that the concentration step and the condensation step are executed.

In order to enhance safety during operation, the lid 26 includes a pressure adjustment mechanism 42 and a lock mechanism 44.
The pressure adjusting mechanism 42 is configured to prevent the pressure inside the heating outer pan 30 from rising abnormally.
The lock mechanism 44 is a mechanism that locks the lid 26 so as not to open while the outer heating pan 30 is sealed. The lid 26 is operated with the lid 26 opened to prevent hot steam from blowing out and harmful steam from flowing out of the steam condensing tank 8. The lock mechanism 44 is connected to the control unit 38. Therefore, the control unit 38 issues a warning sound when the user tries to start driving in a state where the lock mechanism 44 is not locked, and warns the user not to start driving.

Next, the control panel 40 that can be operated by the user will be described.
The control panel 40 is disposed in front of the outer side surface of the waste liquid processing apparatus main body case 28 so as to be easily seen by the user. The control panel 40 includes a display unit 46 that displays an operation state of the waste liquid treatment apparatus 1 and an operation unit 48 that can be operated by the user.

The display unit 46 of the control panel 40 can display parameter setting numerical values (control setting numerical values) that are settings for controlling the waste liquid treatment apparatus, and can display the operation state of the waste liquid treatment apparatus 1 with numerical values, characters, and the like. Further, as the display unit 46, Patlite (registered trademark) may be connected, and the operation state of the waste liquid treatment apparatus 1 may be notified by the Patlite.
The operation unit 48 includes operation buttons of the waste liquid processing apparatus main body 10. The operation buttons are, for example, an operation start button, a numerical value adjustment button, and the like, and the function of each operation button can be changed by the program 41. When the user presses the driving start button, the control unit 38 is notified of the start of the driving operation. According to the input of the operation button, the parameter setting numerical value of the waste liquid treatment apparatus 1 (that is, the control setting of the dehydrating apparatus) can be displayed and / or changed. Furthermore, a user performs a so-called manual operation operation in which heating is started, repeated heating operation is started, operation is forcibly terminated by operating an operation button during the operation of the waste liquid treatment apparatus 1. Is also possible.
Therefore, the user can easily change the numerical value of the parameter of the waste liquid treatment apparatus 1 by operating the operation unit 48 described later while visually recognizing the display unit 46.
The “numerical values of parameters” referred to in the present invention are, for example, induction heating means output, induction heating means energization rate, number of repetitions of heating by induction heating means, temperature at which heating by induction heating means is stopped, heating pause of induction heating means It shows the set numerical values such as the time and temperature at which the operation of the waste liquid treatment apparatus is completed.
In this way, the user can adjust the waste liquid treatment apparatus 1 so that the waste liquid treatment apparatus 1 can be operated more efficiently in accordance with the operation status of the waste liquid treatment apparatus 1. For example, the size of the heating outer pan 30 and the condensation promotion inner pan 39, the amount of waste liquid to be treated, the type of substance contained in the waste liquid, the viscosity of the waste liquid, and easy to peel from the condensation promotion inner pot after processing the waste liquid Depending on the surrounding environment where the waste liquid treatment equipment is installed, the final state of condensation of the waste liquid intended by the user, the number of repetitions of heating and the time until the condensation promotion inner pan is melted, etc. The settings of the waste liquid treatment device can be adjusted.

The condensation promotion inner pot 39 has a cylindrical pot shape with an open top, and is provided in the heating outer pot 30 so that the outer surface substantially matches the inner surface of the heating outer pot 30. It is provided so that a side surface may be covered from the inner side from the bottom. Since the outer side surface of the condensation promotion inner pan 39 and the inner side surface of the heating outer pan 30 are in contact with each other with almost no gap, the outer side surface of the condensation promotion inner pan 39 and the inner side surface of the heating outer pan 30 are The liquid component of the waste liquid does not enter during this period.
The diameter of the condensation promotion inner pot 39 is set to be slightly smaller than the diameter of the heating outer pot 30 about 390 mm so that the outer diameter of the condensation promotion inner pot 39 substantially matches the inner diameter of the heating outer pot 30. The depth of the pan 39 is set to about 100 mm from the upper end to the depth of the bottom surface of the condensation promoting inner pan 39, and can be covered to a depth of about 70% from the bottom of the inner side surface of the heating outer pan 30. Is set. The diameter of the condensation promotion inner pot 39 can be changed according to the size of the heating outer pot 30, and the depth of the condensation promotion inner pot 39 accommodates the amount of waste liquid to be condensed by the condensation promotion inner pot 39. For example, it may be set to a depth from the substantially upper end to the bottom surface of the inner surface of the heating pan 30. As an example, the condensation promotion inner pot 39 has a capacity capable of storing about 3 liters of waste liquid.

In this embodiment, the condensation promotion inner pot 39 is made of an aluminum foil that is a metal foil. The condensation promoting inner pot 39 can be formed of a conductive material foil in which eddy current flows due to electromagnetic induction and Joule heat is generated, and a metal foil of magnetic material can also be used. Moreover, when the metal foil of a magnetic material is used, a condensation promotion inner pot is heated also by the hysteresis loss by the alternating magnetic flux.
Preferably, the thickness of the foil of the condensation promotion inner pot 39 is set to 0.005 mm to 0.05 mm. By setting the thickness of the foil in this way, the foil has a relatively large electric resistance, and therefore a sufficiently large Joule heat can be generated by the flow of eddy current. The condensation promotion inner pot 39 may be made by, for example, one aluminum foil, by joining a plurality of aluminum foils, or by superposing a plurality of aluminum foils. The condensation promoting inner pan 39 is manufactured by forming aluminum into a pan shape by pressing or the like, or by pressing and placing an aluminum foil along the inner surface of the heating outer pan 30 by manual work. It can also be formed. The aluminum foil may be subjected to a surface treatment for preventing oxidation or the like on the surface. The condensation promoting inner pot 39 and the heating outer pot 30 can be electrically insulated by the surface layer formed by the surface treatment of the aluminum foil.

  The condensation promotion inner pot 39 is configured to be separately removable from the heating outer pot 30. Therefore, the user removes the condensation promotion inner pot 39 from the waste liquid processing apparatus main body 10 after condensing the waste liquid, or heats the condensation promotion inner pot 39 after removing the heating outer pot 30 from the waste liquid processing apparatus main body 10. It is possible to remove the outer pot 30 and perform operations such as cleaning and replacement. Moreover, in this embodiment, the condensation promotion inner pot is disposable and can be easily replaced with an unused condensation promotion inner pot.

  Next, the operation of the waste liquid treatment apparatus 1 of the present invention will be described in detail with reference to FIG. FIG. 3 is a diagram for explaining the operation of the waste liquid treatment apparatus of the present invention. In FIG. 3, the horizontal axis indicates the time axis T, and the vertical axis indicates the pan bottom temperature ° C. and ON / OFF of the induction heating means corresponding to the time axis T.

First, the case where the waste liquid, the antifoaming agent and the additive are manually added will be described.
The user provides the condensation-promoting inner pot 39 formed of foil in the heating outer pot 30 so that the outer surface thereof substantially matches the inner surface of the heating outer pot.
Next, the user operates the waste liquid supply pump 14 to supply the waste liquid to be dehydrated into the condensation-promoting inner pot 39, usually for 3 liters.
Next, the user operates the antifoaming agent supply pump 18 to supply a predetermined amount of the antifoaming agent into the condensation promoting inner pot 39. Similarly, the user drives the additive supply pump 22 to supply a predetermined amount of additive into the condensation promotion inner pot 39.
The user locks the lock mechanism 44 of the lid 26 by matching the lid 26 with the cylindrical upper edge of the heating pan 30. The inside of the heating outer pot 30 is in a sealed state because the heating outer pot 30 and the lid 26 are in close contact with each other.
Thereafter, the user operates the control panel 40 to adjust the parameter setting value of the waste liquid treatment apparatus 1.
The user operates the operation start button at time T <b> 1 in FIG. 3 to send an operation start signal to the control unit 38 to operate the waste liquid treatment apparatus 1.

  At time T <b> 1, the waste liquid treatment apparatus 1 starts heating by the induction heating unit 32 under the control of the control unit 38. The control unit 38 sets the output of the induction heating means 32 to 5 kw, which is 100% of the rated output, from the start until the temperature sensor 34 detects the predetermined temperature 115 ° C. The predetermined temperature 115 ° C. can be set to another temperature such as 125 ° C., for example. In the present embodiment, the period from the start of heating by the induction heating means 32 (time T1) to the stop of heating by detecting the predetermined temperature 115 ° C. of the temperature sensor 34 (time T2) is referred to as a concentration step. In this concentration step, the heating outer pan 30 is magnetized by an alternating magnetic field generated by the induction heating means 32 to generate a hysteresis loss, and this hysteresis loss is converted into heat energy. Therefore, the heating outer pan 30 is heated by electromagnetic induction. Further, the condensation promotion inner pot 39 generates an eddy current by an alternating magnetic field generated by the induction heating means 32, and Joule heat is generated by the flow of the eddy current. Therefore, the condensation promotion inner pot 39 is heated. In addition, although an eddy current flows also in the inside of the heating outer pot 30, since the heating outer pot 30 is formed thickly, electrical resistance is small and Joule heat by an eddy current hardly generate | occur | produces. Moreover, since the condensation promotion inner pot 39 is made of a nonmagnetic material, it is not heated by hysteresis loss. The liquid component of the waste liquid thrown into the condensation promotion inner pan 39 by electromagnetic induction heating is evaporated, and the vapor of the liquid component is introduced into the vapor condensing tank 8 through the vapor pipe 12 and condensed.

When the liquid component of the input waste liquid is evaporated and the liquid component in the waste liquid is reduced, the condensation promoting inner pot 39 provided inside the heating outer pot 30 and the heating outer pot 30 in contact with the outer surface thereof The temperature gradually increases. When the temperature sensor 34 detects the predetermined temperature 115 ° C. at the time T2, the control unit 38 starts the control so that the induction heating unit 32 repeats heating and heating pause alternately. A process in which the induction heating unit 32 repeats heating is referred to as a condensation process. When the induction heating means 32 stops heating at time T2, the temperature at the bottom of the condensation promoting inner pot 39 and the heating outer pot 30 begins to gradually decrease.
After the temperature sensor 34 detects the predetermined temperature 115 ° C. at the time T2, the induction heating unit 32 stops energization to the induction heating unit 32 for a predetermined time (heating stop time) of 60 seconds until the time T3. To pause. This prevents the temperature of the heating pan 30 from rising excessively. Note that the induction heating means 32 may not be completely de-energized but may continue heating with a low output.
In the present embodiment, the heating is stopped for a predetermined time after the temperature reaches 115 ° C. As a modification, after the temperature sensor 34 detects the predetermined temperature 115 ° C., for example, the temperature is 100 ° C. It is also possible to control the heating to be stopped until the temperature decreases.
During the period from time T2 to time T3, the pan bottom temperature of the heating pan 30 gradually decreases, but the evaporation of the liquid component of the waste liquid continues and the waste liquid is concentrated and condensed. Until the time T3, the predetermined time until the time T3 can be determined so that the evaporation of the waste liquid continues actively even if the heating is stopped.

  At time T3, the induction heating means 32 starts reheating again. At time T3, the temperature of the waste liquid is lower than the temperature of the waste liquid at time T2. The temperature of the waste liquid is reheated and starts to rise again. As the temperature of the waste liquid rises, many liquid components in the waste liquid again evaporate. Since such repeated heating is performed, the temperature of the waste liquid can be further increased from 115 ° C. by heating the condensation promotion inner pot 39. Thereby, the liquid component which remains in a waste liquid can be reduced significantly.

The reheating by the induction heating unit 32 is performed until the control unit 38 sets the output of the induction heating unit 32 to 3 kW and, for example, the temperature sensor 34 detects a predetermined temperature 115 ° C. When the temperature sensor 34 detects a predetermined temperature 115 ° C. at time T4, the induction heating means 32 stops heating again. Thus, the induction heating means 32 repeats heating and heating pause alternately. Similarly, the control unit 38 repeats the reheating and resuspension of the induction heating means 32 for a set number of times from time T5 to time T42.
When the liquid component remaining in the waste liquid is greatly reduced, the heat of induction heating in the condensation promoting inner pot 39 is not easily taken away by the vaporization of the liquid component of the waste liquid. While the control unit 38 repeats the reheating and resuspension of the induction heating means 32 for the set number of times from time T5 to time T42, the liquid component in the waste liquid in the condensation promotion inner pan 39 decreases, and the condensation promotion inner pan The temperature of 39 rapidly rises to reach approximately 660 ° C., which is the melting temperature of aluminum, and the condensation promoting inner pot 39 begins to melt. Since the condensation promotion inner pot 39 becomes so hot that aluminum is melted, the waste liquid in the condensation promotion inner pot 39 is strongly condensed. As a result, the waste liquid loses most of the liquid components and becomes a plate-like dry solid form that is easy to peel off. In addition, although the condensation promotion inner pot 39 and waste liquid in the heating outer pot 30 are heated to a very high temperature, such a temperature rise occurs only in the vicinity of the condensation promotion inner pot 39. The temperature detected by the temperature sensor 34 provided in is 115 ° C. or lower. In this way, by repeatedly reheating the waste liquid, it is possible to evaporate the liquid components of the waste liquid, increase the concentration of the waste liquid, and finally condense it to near dryness. As a result, the stickiness of the waste liquid is almost completely lost.

  The heating pause time of the induction heating means 32 is set to 60 seconds, but the setting is changed depending on the type and amount of waste liquid to be dehydrated. In this embodiment, the heating pause time can be changed every 10 seconds from 30 seconds to 360 seconds. The repeated heating can be performed a predetermined number of times from 1 to 31. In this embodiment, the repeated heating is repeated 20 times from time T2 to time T42. For example, when the number of times of repeated heating is the 20th time, the heating pause time can be changed in accordance with the number of times of repeated heating, such as making the heating pause time longer than 60 seconds. As the waste liquid is concentrated and condensed, the heating pause time is changed to adjust the timing and time when the temperature of the condensation-promoting inner pot 39 reaches the melting point, and the condensation is efficiently performed. Can be recommended. Similarly, the setting of the predetermined temperature may be changed in the middle according to the number of repeated heating. While repeatedly heated, the condensation-promoting inner pot 39 is heated to a temperature close to about 660 ° C., while the temperature at the bottom of the heating outer pot 30 is kept at 115 ° C. or lower. The durability of the waste liquid treatment apparatus 1 can be increased by preventing the heat from affecting the equipment.

  At time T42, the control unit 38 stops the heating by the induction heating unit 32 when the repeated heating is completed 20 times. Therefore, the temperature of the condensed waste liquid, the temperature of the condensation promoting inner pot 39, and the temperature of the heating outer pot 30 begin to gradually decrease. Thereafter, when the temperature sensor 34 detects the predetermined temperature 60 ° C. at time T43, the control unit 38 displays the end of condensation on the control panel 40 or notifies the user by sound or the like. The process from time T42 to time T43 is referred to as a cooling process. By performing the cooling process, it becomes possible for the user to take out the condensation-promoting inner pot 39 and the condensate (residue such as solidified and dried solid waste) at a safe temperature that does not burn.

  After time T43, the user can open the lid 26 and take out the condensate of the waste liquid together with the melted condensation promoting inner pot 39. Since the condensate of the waste liquid is in a solid state almost dried and solidified, the stickiness of the waste liquid is small, and the user can easily separate the waste liquid condensate from the heating pan 30 and collect it. Furthermore, since the condensate of the waste liquid is easily peeled off from the heating pan 30, the cleaning maintenance work after use in the heating pan 30 can be easily performed. In this embodiment, the condensation promotion inner pot 39 is a disposable pot, and is discarded as industrial waste together with the condensate of the waste liquid.

Next, the case where the supply of the waste liquid, the antifoaming agent, and the additive is automatically performed under the control of the control unit 38 will be described. Since the operation of the waste liquid treatment apparatus 1 in the present embodiment is different in the concentration step, description of operations common to the case where the user supplies the waste liquid, the antifoaming agent, and the additive is omitted.
The relationship between the pan bottom temperature and time of the waste liquid treatment apparatus 1 in this embodiment is substantially the same except that the interval between the times T1 and T2 in FIG. 3 is different, and will be described below using the same reference numerals at the time T.
The user has previously provided the condensation promotion inner pot 39 formed of foil in the heating outer pot 30 so that the outer surface thereof substantially matches the inner surface of the heating outer pot 30.
First, the user operates the control panel 40 to adjust the parameter setting value of the waste liquid treatment apparatus 1.
At time T <b> 1, the user operates the operation start button to send an operation start signal to the control unit 38 and activate the waste liquid treatment apparatus 1. The controller 38 drives the waste liquid supply pump 14 for a predetermined time, and supplies the waste liquid to be dehydrated from the external waste liquid tank 2 into the condensation promoting inner pot 39 until the liquid level sensor 36 detects the liquid level.
Next, the control unit 38 drives the antifoaming agent supply pump 18 for a predetermined time to supply a predetermined amount of antifoaming agent into the condensation promotion inner pot 39. Similarly, the control unit 38 drives the additive supply pump 22 for a predetermined time to supply a predetermined amount of the additive into the condensation promotion inner pot 39.

The control part 38 will start the heating by the induction heating means 32, after supply of an antifoamer and an additive is complete | finished (concentration process start). As described above, the heating outer pan 30 is heated by induction heating utilizing hysteresis loss due to an alternating magnetic field, and the condensation promoting inner pan 39 is heated by induction heating utilizing eddy current due to the alternating magnetic field. When the waste liquid evaporates by heating and decreases in the concentration process and the liquid level drops to a predetermined height, the control unit 38 drives the waste liquid supply pump 14 so that the liquid level sensor 36 has a predetermined liquid level height. The waste liquid is resupplied from the waste liquid tank 2 to the condensation promoting inner pot 39 until the position is detected again. That is, an amount of waste liquid substantially the same as the amount of the liquid component of the waste liquid evaporated by heating is supplied to the condensation promotion inner pot 39 by resupply. The control unit 38 supplies a predetermined amount of the antifoaming agent from the antifoaming agent tank 4 and supplies a predetermined amount of the additive from the additive tank 6 together with the resupply of the waste liquid to be dehydrated. The controller 38 continues the heating by the induction heating means 32 during or after the resupply of the waste liquid or the like. In the step of concentrating the waste liquid of the present invention while heating, the concentration of the waste liquid concentrated by re-supplying the waste liquid once decreases. When the waste liquid is supplied again, the temperature of the waste liquid also decreases. In this way, heating is continued while the volume of the waste liquid is kept within a certain range to evaporate the liquid component in the waste liquid.
During the concentration process, the control unit 38 re-supplies the waste liquid from the waste liquid tank 2 and the like a predetermined number of times. Accordingly, it is possible to treat more industrial waste liquid or the like than can be put into the condensation promoting inner pot 39 at a time.

  When the temperature sensor 34 detects the predetermined temperature 115 ° C. at the time T2 after the control unit 38 performs the re-supply of the waste liquid a predetermined number of times, the control unit 38 causes the induction heating unit 32 to alternately turn on and off the heating. The condensation process is repeated. After the control unit 38 starts to repeatedly heat the induction heating unit 32, new supply of the waste liquid, the defoaming agent, and the additive to be condensed is not performed.

At time T42, the control unit 38 stops the heating by the induction heating unit 32 when the repeated heating is completed 20 times.
When the temperature sensor 34 detects the predetermined temperature 60 ° C. at time T43, the control unit 38 displays the end of dehydration on the control panel 40 or notifies the user by sound or the like.
After the time T43, the user can open the lid 26 and take out the condensate after the dehydration of the waste liquid to be dehydrated (residue such as a solidified dry solid of the waste liquid).

Next, the effect of the waste liquid treatment apparatus of the above-described embodiment of the present invention will be described.
According to the waste liquid treatment apparatus of this embodiment, the waste liquid is accommodated in the condensation promoting inner pot 39 in the heating outer pot 30 provided in the waste liquid processing apparatus main body 10 and is induction heating provided outside the heating outer pot 30. Heated using means 32.
In the waste liquid treatment apparatus of the present embodiment, the temperature of the condensation promotion inner pot 39 that is induction-heated by eddy current is higher than the temperature of the heating outer pot 30 that is induction-heated due to hysteresis loss. Condensation of the stored waste liquid is promoted. For this reason, the waste liquid processed by the waste liquid processing apparatus of the present invention is reduced to about a half of the waste liquid processed in the conventional waste liquid processing apparatus, and the waste liquid disposal cost can be suppressed. . For example, a waste liquid having a viscosity of about 0.9 mPas before treatment is fixed to a heating pan with a high viscosity of 1.5 mPas or more without being sufficiently condensed when treated with a conventional waste liquid treatment apparatus (strong adhesion). Therefore, such a waste liquid has an adhesive value of about 0.1 N / 25 mm to 0.2 N / 25 mm, and is easily peeled off. According to the waste liquid treatment apparatus of the present embodiment, the waste liquid having such properties can be condensed until the waste liquid is solidified from the liquid until it becomes almost solid. It can be easily peeled from the outer pot 30. Thereby, the effort of peeling and discarding the waste liquid (condensed solid substance or powder form) after a process from the heating outer pan 30 can be reduced.

  According to the waste liquid treatment apparatus of the present embodiment, the condensation promoting inner pot 39 is melted at a high temperature by induction heating by the induction heating means 32, so that the liquid component of the waste liquid can be evaporated at a higher temperature. Furthermore, by making the condensation promotion inner pot 39 disposable, it is possible to omit the work of separating the waste from the condensation promotion inner pot 39 and discarding it, and shortening the preparation time for the next waste liquid condensation treatment. Can do.

  According to the waste liquid treatment apparatus of the present embodiment, the condensation promoting inner pot 39 is formed of a foil having a thickness of 0.005 mm to 0.05 mm. Therefore, the conductor has a small cross-sectional area and has a large electric resistance. It is heated strongly by heat and heated to a temperature higher than the temperature of the heating pan 30 to promote the condensation of the waste liquid accommodated therein.

  According to the waste liquid treatment apparatus of the present embodiment, the condensation promoting inner pot 39 formed of aluminum foil is induction heated by the induction heating means 32 because the aluminum foil has a large electric resistance, and the temperature of the aluminum foil becomes high. Therefore, it is possible to promote the condensation of the waste liquid contained therein. Furthermore, since the condensation promotion inner pot 39 is formed of aluminum foil, the condensation promotion inner pot 39 that can be strongly induction-heated by the induction heating means 32 can be easily formed at low cost.

  According to the waste liquid treatment apparatus of this embodiment, the control unit 38 of the waste liquid treatment apparatus main body 10 heats the waste liquid until the temperature sensor 34 detects a predetermined temperature to concentrate the waste liquid, and after this concentration process Then, the induction heating means 32 is controlled so that a condensation process is repeated in which the temperature of the waste liquid is lowered and reheating to a predetermined temperature is repeated. Therefore, it is possible to sufficiently evaporate the liquid component in the waste liquid while suppressing an excessive temperature rise of the heating pan 30.

  According to the waste liquid treatment apparatus of the present embodiment, the control unit 38 of the waste liquid treatment apparatus main body 10 controls the waste liquid supply pump 14 to introduce the waste liquid into the condensation promoting inner pan 39 before starting the concentration process, and during the concentration process. The waste liquid is additionally supplied to the condensation promoting inner pot 39. Therefore, it becomes possible to additionally process a larger amount of waste liquid than can be supplied to the condensation promoting inner pot 39 at a time.

  According to the waste liquid treatment apparatus of the present embodiment, the control unit 38 of the waste liquid treatment apparatus main body 10 can drive the antifoaming agent supply pump 18 to supply the antifoaming agent to the condensation promoting inner pot 39 and the additive supply pump 22. And the additive can be supplied to the condensation promoting inner pot 39. Accordingly, when the large volume waste liquid is condensed while supplying the waste liquid from the large volume waste liquid tank 2 to the condensation promoting inner pot 39, the control unit 38 can control the supply of the defoaming agent and / or additive. Therefore, it is possible to condense a large volume of waste liquid while supplying the antifoaming agent and / or additive.

  According to the waste liquid treatment apparatus of the present embodiment, the waste liquid vapor is condensed in the vapor condensing tank 8 communicated with the condensation promoting inner pot 39. Therefore, harmful substances contained in the waste liquid vapor can be prevented from being directly released to the outside air.

Next, a method for manufacturing a waste liquid treatment apparatus according to an embodiment of the present invention will be described.
As described above, the waste liquid treatment apparatus according to the embodiment of the present invention includes a heating pan, a lid, induction heating means, a temperature sensor, a control unit for controlling these, a condensation promoting inner pan, and the like. If an apparatus having these configurations is designed and manufactured exclusively, the cost increases.
Accordingly, the inventors of the present invention have conducted many experiments and trials and errors to reduce the manufacturing cost of the waste liquid treatment apparatus, and as a result, in the field of food and beverage equipment, which is a field that is completely different from the waste liquid treatment. The idea was to apply an induction heating (IH) rice cooker to cook rice. That is, a waste liquid processing apparatus according to an embodiment of the present invention, using each component such as a rice cooker, a lid, an induction heating means, a temperature sensor, and a control unit that controls the rice cooker, provided in a commercially available induction heating rice cooker. Inspired to manufacture. The induction heating rice cooker is an electromagnetic cooking device that is generally manufactured and sold in large quantities, and thus can be obtained at a relatively low cost, and can be applied to the waste liquid treatment apparatus according to the embodiment of the present invention. It was found to have However, rice cooking and industrial waste liquid treatment are completely different, especially since the waste liquid may contain oil, simply by storing the waste liquid in the induction heating rice cooker and heating it, In addition to being unable to concentrate and condense the waste liquid sufficiently, it may be dangerous depending on the waste liquid to be treated. Therefore, the inventors of the present invention have developed a specific method for manufacturing a waste liquid treatment apparatus for waste liquid such as a factory using an induction heating rice cooker for rice cooking. The waste liquid treatment apparatus according to the embodiment of the present invention is generally manufactured by designing each component of the waste liquid treatment apparatus from the ground up for the present invention without using an induction heating rice cooker for rice cooking. May be.

In the manufacturing method of the waste liquid treatment apparatus of the present embodiment, first, the rice cooking pot for containing the waste liquid inside, the lid for sealing the rice cooking pot, the IH heating means provided on the outside of the rice cooking pot, An induction heating type (IH) rice cooker including a temperature detector for detecting temperature and a controller (control unit) capable of controlling the IH heating means based on detection of the temperature of the temperature detector is prepared. Next, the control unit 38 heats the waste liquid until the temperature sensor 34 detects the predetermined temperature, and concentrates the waste liquid. After this concentration process, the temperature of the waste liquid is reduced and the reheating to the predetermined temperature is performed. The program 41 of the control unit 38 is modified so that the condensation process for condensing the waste liquid is executed repeatedly. Finally, the condensation promoting inner pot 39 formed of foil is induced to be heated by induction heating means 32 due to an eddy current and becomes higher than the temperature of the heating outer pot 30 so as to promote the condensation of the stored waste liquid. The outer side surface is provided in the heating outer pan 30 so as to substantially match the inner side surface of the heating outer pan 30. Using the principle of induction heating, heating the heating pan 30 and the condensation promotion inner pot 39 simultaneously using different phenomena, and making the condensation promotion inner pot 39 very hot while using the structure of the rice cooker. Can do.
That is, the cooking pot, lid, IH heating means, temperature detector, and controller provided in the induction heating rice cooker are the heating outer pot 30, lid 26, induction heating means 32, temperature sensor 34 in the waste liquid treatment apparatus 1, And it uses as the control part 38, respectively.

  Furthermore, depending on the configuration of the waste liquid treatment apparatus, the steam condensing tank 8 is connected to the induction heating rice cooker (waste liquid treatment apparatus main body 10) via the steam pipe 12, and the waste liquid tank is connected to the electric rice cooker via the waste liquid pipe 16. 2, the antifoam tank 4 is connected via the antifoam pipe 20, and the additive tank 6 is connected via the additive pipe 24. Further, the liquid level sensor 36 is inserted into the condensation promotion inner pan 39 from the outside of the lid 26, and the controller (control unit 38) is added to the liquid level sensor 36, the waste liquid supply pump 14, the antifoaming agent supply pump 18 and the addition. It is electrically connected to the agent supply pump 22 and the like.

  In the process of modifying the program built in the controller, for example, a ROM, memory or the like storing a program created for waste liquid processing is mounted on the controller board, or a program created for waste liquid processing is installed. Write to the rewritable ROM, memory, etc. of the controller. By modifying the program of the controller, the controller can execute the concentration process and the condensation process based on the instructions of the program.

In this embodiment, the advantageous effect by using an induction heating type (IH) rice cooker is shown below.
In the present embodiment, the rice cooking pan of the induction heating rice cooker is used as the heating outer pan 30. The rice cooking pan is made of a heat-resistant and pressure-resistant material for cooking rice, and can withstand high temperatures when the heating outer pan 30 heats the waste liquid and the condensation promoting inner pan 39 is heated. It is configured to be detachable from the rice cooker body case in order to remove the rice cooking pot during rice cooking and perform water supply and washing. Therefore, it is easy for the user to remove the heating pan 30 from the waste liquid processing apparatus main body 10 after concentrating / condensing the waste liquid and to perform work such as cleaning and replacement. Furthermore, the rice cooker has been treated with Teflon or marble to prevent the rice from sticking firmly to its surface, so the solidified and dried solid matter (residue) of the waste liquid after dehydration can be removed. It can be easily peeled off and removed, and the Teflon coating layer or the like can function as an insulating layer that insulates the heating outer pot 30 from the condensation promoting inner pot 39.

  The lid of the rice cooker is formed of a heat-resistant and pressure-resistant material that can withstand even when the temperature of the rice cooking pan becomes high temperature and high pressure during rice cooking. Accordingly, it is possible to withstand the high temperature when the waste liquid is heated by the condensation promoting inner pot 39 or the heating outer pot 30. Furthermore, the rice cooker lid includes a pressure adjustment mechanism 42 and a lock mechanism 44 in order to increase the safety of operation during rice cooking. Therefore, when the waste liquid is heated and evaporated to increase the pressure in the heating pan 30, it is possible to prevent an accident in which steam is suddenly released. Further, the operation is performed with the lid 26 open, and the high temperature steam of the waste liquid is blown out and harmful steam is prevented from flowing out of the steam condensing tank 8.

Moreover, the commercially available induction heating rice cooker also includes an IH heating means, a temperature detector, a controller, and the like.
The controller of the IH heating rice cooker is initially provided with a rice cooking program for rice cooker operation. In the rice cooker with the additional cooking function, the program can be modified so that the additional cooking function is applied to the condensation process of repeatedly heating the waste liquid and the additional cooking function is repeatedly executed. The modified program may be a program developed from the original rice cooking program or a newly created program.
Furthermore, since the IH heating type rice cooker includes a display unit that displays the rice cooking state and the operation unit that is operated by the user, the display unit 46 displays the operation state and the like of the waste liquid treatment apparatus 1. And it can be applied as the operation unit 48. Thereby, the waste liquid processing apparatus 1 with good operability can be configured at low cost.

  According to the manufacturing method of the waste liquid treatment apparatus of the embodiment of the present invention, by using the induction heating type rice cooker for rice cooking, by preparing the condensation promotion inner pot 39 formed of metal foil, the waste liquid The processing apparatus 1 can be easily manufactured, and the manufacturing cost of the waste liquid processing apparatus 1 can be greatly reduced.

  In the above-described embodiment of the present invention, the waste liquid treatment apparatus 1 includes the waste liquid tank 2, the antifoaming agent tank 4, and the additive tank 6. However, the user uses the waste liquid, the antifoaming agent, and the additive. If the agent is directly put into the condensation promoting inner pot 39, these can be omitted. Further, in the above-described embodiment of the present invention, the waste liquid treatment apparatus 1 includes the vapor condensing tank 8, but in an apparatus premised on the treatment of the waste liquid that can release evaporated vapor directly to the atmosphere, the vapor condensing tank The generated steam can be directly discharged from the steam pipe 12 or the waste liquid treatment apparatus main body 10 to the outside atmosphere. By omitting the vapor condensing tank 8, the waste liquid treatment apparatus 1 can be manufactured easily and inexpensively.

DESCRIPTION OF SYMBOLS 1 Waste liquid processing apparatus 2 Waste liquid tank 4 Antifoam tank 6 Additive tank 8 Steam condensation tank 10 Waste liquid processing apparatus main body 12 Steam pipe 14 Waste liquid supply pump 16 Waste liquid pipe 18 Antifoam supply pump 20 Antifoam pipe 22 Additive supply Pump 24 Additive pipe 26 Lid 28 Waste liquid treatment device body case 30 Heating pan 32 Induction heating means 34 Temperature sensor 38 Control unit 39 Condensation promoting inner pan 40 Control panel

Claims (9)

In a waste liquid treatment apparatus that evaporates liquid components of the waste liquid and condenses by heating the waste liquid,
An outer heating pan formed of a magnetic material;
A lid for sealing the heating outer pan;
Induction heating means for generating magnetic flux alternating in the heating outer pan, and induction heating the heating outer pan from the outside by hysteresis loss generated in the heating outer pan,
A control unit for controlling the induction heating means;
A condensation-promoting inner pot that is disposed in the heating outer pan so that the outer side substantially matches the inner side of the heating outer pan, and that receives waste liquid to be condensed inside,
The condensation-promoting inner pan is formed of a metal foil, eddy current flows through induction heating by the induction heating means, and the Joule heat causes the eddy current to be heated to a temperature higher than the temperature of the outer heating pan. , Waste liquid treatment equipment.   The waste liquid treatment apparatus according to claim 1, wherein the condensation-promoting inner pot is a disposable inner pot configured to be melted at a high temperature by induction heating by the induction heating unit.   The waste liquid treatment apparatus according to claim 1 or 2, wherein the condensation promoting inner pot is formed of a foil having a thickness of 0.005 mm to 0.05 mm.   The waste liquid treatment apparatus according to any one of claims 1 to 3, wherein the condensation promotion inner pan is formed of an aluminum foil. Furthermore, a temperature sensor for detecting the temperature of the heating pan is provided,
The control unit heats the waste liquid until the temperature sensor detects a predetermined temperature to concentrate the waste liquid, and after this concentration process, a condensation process that repeats the temperature reduction of the waste liquid and reheating to the predetermined temperature. The waste liquid treatment apparatus according to any one of claims 1 to 4, wherein the induction heating unit is controlled so as to be executed.   Furthermore, a waste liquid tank for storing waste liquid, and a waste liquid supply pump installed in a waste liquid communication means for communicating the waste liquid tank and the condensation promotion inner pot, the control unit controls the waste liquid supply pump The waste liquid is dried and solidified according to any one of claims 1 to 5, wherein the waste liquid is introduced into the condensation promotion inner pan before the start of the concentration process, and the waste liquid is additionally supplied to the condensation promotion inner pot during the concentration step. apparatus.   Further, an antifoaming agent installed in an antifoaming agent tank that stores the antifoaming agent, an additive tank that stores the additive, and an antifoaming agent communicating means that communicates the antifoaming agent tank and the condensation promoting inner pot. An additive supply pump, and an additive supply pump installed in an additive communication means for communicating the additive tank and the condensation-promoting inner pot, and the control unit includes the antifoam supply pump and the addition The waste liquid treatment apparatus according to any one of claims 1 to 6, wherein an antifoaming agent and an additive are introduced into the condensation promotion inner pan by controlling the agent supply pump.   Furthermore, the waste liquid processing apparatus of any one of Claim 1 thru | or 7 provided with the vapor | steam condensation apparatus connected with the said condensation promotion inner pot which condenses the vapor | steam evaporated from the heated waste liquid. A method for manufacturing a waste liquid treatment apparatus, comprising:
A rice cooker for containing waste liquid, a lid for sealing the rice cooker, induction heating means provided outside the rice cooker, a temperature sensor for detecting the temperature of the rice cooker, and the temperature of the temperature sensor Preparing an induction heating rice cooker comprising a control unit for controlling the heating means based on the detection of
The controller heats the waste liquid until the temperature sensor detects a predetermined temperature, concentrates the waste liquid, and after this concentration process, repeats the temperature reduction of the waste liquid and reheating to the predetermined temperature, Modifying the control unit program to perform a condensation step of condensing waste liquid;
It almost matches the inner surface of the rice cooker and is formed of a metal foil so as to contain waste liquid. An eddy current flows through the induction heating means, and is heated by the Joule heat. And a step of preparing a condensation-promoting inner pan configured to have a high temperature. A method for manufacturing a waste liquid treatment apparatus, comprising:

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