JP2006138678A - Apparatus equipped with oil leakage detection means - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent lubrication oil from infiltrating into a chamber for a device provided with a driving part on the chamber in which an activation part supplied with driving force from the driving means is provided. <P>SOLUTION: The oil retention part for retaining the leaked lubrication oil leaked from the oil seal part of the driving means, and a leakage detection means for detecting the leaked lubrication oil, are provided. The oil leakage detection means is provided with a detection part between the oil seal part and oil retention part, or in the oil retention part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus having an oil leak detection means, and in particular, in an apparatus in which a drive means is provided in an upper part of a chamber provided with an operating part to which a drive force is supplied by the drive means. The present invention relates to an apparatus having an oil leakage detection means for preventing the lubricating oil used from mixing into the chamber.

  Solid drying includes heating systems and non-heating systems. Examples of the heating system include heat transfer drying by convection, radiation or conduction, or internal heat generation drying by microwaves. Examples of the non-heating system include vacuum drying (including reduced pressure drying), centrifugal drying, drying using an absorbent material, suction drying, pressure drying, and ultrasonic drying. In order to perform efficient drying, pretreatment such as preheating, dehydration, or granulation may be performed, or a heating system and a non-heating system may be combined. The solid drying method currently in wide use is convection heat transfer drying, but in recent years, the use of vacuum drying (including reduced pressure drying) is increasing.

  Vacuum drying is mainly used for the drying of chemical industrial chemicals such as pharmaceuticals, agricultural chemicals, chemical products, electronic industrial chemicals, foods, electronic components (eg, semiconductors, printed circuit boards, etc.), wood drying, sludge drying, It is used in fields such as clothes drying (including bathroom drying).

  Vacuum drying is convenient for improving labor-saving or energy-saving efficiency, adjusting the drying atmosphere such as holding at a low temperature or uniform drying, or improving the quality of the solid to be dried, and is more convenient when combined with other drying means. is there. In particular, a solid drying technique that stirs under vacuum (reduced pressure) is often used (see, for example, Non-Patent Document 1).

For example, as shown in FIG. 5, the stirring-type vacuum dryer has a drying chamber for drying the solid and a driving unit (for example, a motor) for driving the stirring unit in the drying chamber. And a drive means is arrange | positioned at the upper part of a drying chamber, and this drive means has an oil seal part for preventing the leakage of the lubricating oil used in a drive means.
http: // www. kobelco-eco. co. jp / seihin / process / g00_010_svm. htm (Planetary motion type mixed dryer "SV mixer" (Shinko Environmental Solution Co., Ltd.))

  However, even with a conventional vacuum dryer, even when sealing with an oil seal is attempted, the lubricating oil used in the drive means leaks out due to deterioration of the oil seal or malfunction of the oil seal, and enters the lower drying chamber. There was a problem that it was. In particular, in conventional vacuum dryers, the volume of the drive means and the drying chamber are significantly different, so a difference is easily generated between the pressure inside the drive means and the pressure inside the drying chamber, and when the pressure is restored from the vacuum state to the atmospheric pressure. In addition, the pressure inside the drying chamber becomes lower than the pressure inside the driving means, and the leaked lubricating oil is likely to be mixed into the drying chamber. Such a problem may occur not only in a vacuum dryer but also in a normal pressure dryer in which a driving means is provided in the upper part of the drying chamber.

  Such contamination with lubricating oil must be avoided in the drying chamber, particularly when drying materials such as food, chemical industrial chemicals, and electronic components that cannot be mixed with impurities. This is not limited to dryers, but also in various devices such as a reaction device, a mixing device, a filtration / squeezing device, a classifying device, or a pulverizing device having a structure in which a driving means using lubricating oil is provided in the upper part of the chamber Such contamination must be avoided.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an apparatus provided on an upper portion of a chamber provided with an operating unit in which driving means using lubricating oil is supplied with driving force by the driving means. In the present invention, an apparatus capable of preventing the lubricating oil from entering the chamber is to be realized.

  An apparatus according to the present invention includes a driving unit using lubricating oil, and at least one chamber, the driving unit is provided in an upper portion of the chamber, and the chamber is supplied with a driving force by the driving unit. The apparatus further comprises a storage part for storing the lubricating oil leaked from the oil seal part of the driving means, and an oil leak detection means for detecting the leaked lubricating oil, The oil leak detection means includes a detection unit that detects the leaked lubricating oil, and the detection unit is provided between the oil seal unit and the storage unit or in the storage unit.

  It is preferable that the apparatus further includes discharge means for discharging the lubricating oil from the storage unit.

  The oil leak detection means preferably includes a sight glass for visually detecting the leaked lubricating oil.

  The detection unit is preferably a sensor for sensing the leaked lubricating oil.

  The apparatus preferably further includes warning signal output means for outputting a warning signal based on a comparison between an input value from the oil leak detection means and a predetermined reference value.

  Moreover, it is preferable that the discharge means operates based on the warning signal.

  Moreover, it is preferable that the said apparatus is further provided with the warning output means which outputs a warning based on the said warning signal.

  The sensor is preferably a sensor that senses a change in capacitance value between the oil phase and the gas phase. The sensor may be a sensor that senses a change in the refractive index of light in the oil phase and the gas phase.

  The driving means is preferably a motor including a driving motor and a motor speed reducer.

  Moreover, it is preferable that the said storage part and a detection part are provided in the said motor speed reducer.

  Moreover, it is preferable that the said apparatus performs drying, reaction, mixing, filtration and pressing, classification or pulverization in the said room | chamber interior. The internal pressure of the chamber may be reduced or increased.

  In the apparatus according to the present invention, the lubricating oil leaked from the oil seal portion of the driving means in the apparatus provided with the driving means using the lubricating oil provided in the upper portion of the chamber provided with the operating portion supplied with the driving force by the driving means. Can be detected. Therefore, means for preventing leakage of the lubricating oil can be taken by replacing the oil seal or the like, and the lubricating oil can be prevented from entering the chamber.

  Also, by outputting a warning signal based on a comparison between the input value from the oil leakage detection means and a predetermined reference value, it is possible to automatically detect the leakage of the lubricating oil and notify it by an alarm, display, etc. It has the effect of becoming. Therefore, it becomes possible for the user of the apparatus to reliably perform replacement of the oil seal, proper installation of the oil seal, discharge of the lubricating oil stored in the storage portion, and the like.

  As described above, according to the present invention, in the apparatus provided at the upper part of the chamber provided with the operating unit to which the driving unit is supplied with the driving force by the driving unit, the chamber is dried, reacted, mixed, filtered and filtered. When squeezing, classifying or crushing, the chamber can be prevented from being contaminated by the lubricating oil used for the driving means.

  An embodiment of the present invention will be described with reference to FIGS. 1 and 2 as follows. FIG. 1 is a cross-sectional view of a portion corresponding to the portion where the driving means and the drying chamber are connected in the conventional vacuum dryer shown in FIG. 5, and FIG. 2 is an enlarged view thereof.

  As shown in FIG. 1, the apparatus 100 according to the present invention includes a driving unit 1 in an upper part of a chamber 2, and the driving unit 1 including a driving motor 3 and a motor speed reducer 4 is a lubricating oil reservoir in the driving motor 3. In order to prevent leakage of lubricating oil from 5, an oil seal portion 6 is provided, and the chamber 2 is provided with an operating portion 7 to which a driving force is supplied by the driving means 1. Here, “provided in the upper part” means that the lubricating oil leaked from the driving means 1 is provided at a position where it can flow into the chamber 2 by gravity.

  In addition, the device 100 according to the present invention includes a storage portion 8 for storing the lubricating oil leaked from the oil seal portion 6 at the lower portion of the lubricating oil storage tank 5, and the storage portion 8 has a storage portion 8 as shown in FIG. A detection unit 9 for detecting the lubricating oil leaked from the drive motor 3 is provided. In FIG. 2, the detection unit 9 is a sensor for sensing the lubricating oil, and the detection unit (sensor) 9 is attached to the storage unit 8 with the detection electrode at the tip of the sensor protruding from the storage unit 8. 8 detects the change in the capacitance due to the presence or absence of the lubricating oil present in the oil 8, and the oil leakage detection means (not shown) calculates the information on the lubricating oil in the reservoir 8 obtained from the detecting part (sensor) 9. Then, the signal is output as necessary.

  In the apparatus 100 according to the present invention, when the lubricating oil leaks from the oil seal portion 6 due to deterioration of the oil seal or a mounting failure, the leaked lubricating oil is stored in the storage portion 8. The storage unit 8 has a shape capable of storing lubricating oil (for example, having a recess).

  The apparatus 100 according to the present invention can prevent the lubricating oil leaked from the drive motor 3 from contaminating the lower chamber 2 by including such a reservoir 8. However, such a storage unit 8 can block the leaked lubricating oil for a certain period of time, but if the storage unit 8 is filled with the lubricating oil, then the lubricating oil overflows and flows downward. The inside of the chamber 2 existing in the room will be contaminated. In this case, the time during which the lubricating oil can be damped can be lengthened by increasing the wall surface of the reservoir 8.

  Although FIG. 1 shows the case where the storage unit 8 is provided in the drive motor 3, the storage unit 8 is provided below the lubricating oil storage tank 5 and between the oil seal unit 6 and the chamber 2. As long as it is within the drive motor 3 or the motor speed reducer 4.

  As shown in FIG. 2, the apparatus 100 according to the present invention is provided with a detection unit (sensor) 9 of the oil leakage detection unit for detecting the lubricating oil leaked from the driving unit 1 in the storage unit 8. The lubricating oil can be detected before the lubricating oil overflows from the reservoir 8. Therefore, means for preventing leakage of the lubricating oil (for example, replacement of the oil seal) can be taken at an early stage, and the chamber 2 can be prevented from being contaminated by the lubricating oil.

  Various sensors known in the art can be applied to the sensor used as the detection unit 9. An example of such a sensor is a sensor that senses a change in capacitance value between an oil phase and a gas phase. According to such a configuration, it is possible to accurately detect leakage of the lubricating oil. As another example of the sensor applicable to the apparatus 100 according to the present invention, the sensor has two electrodes facing each other, and is configured to detect a change in capacitance of a substance existing between the facing electrodes. It may be a sensor. With the above configuration, since a significant difference is generated in the detection value depending on the presence or absence of the lubricating oil in the storage unit 8, leakage of the lubricating oil can be detected. Of course, even when such a sensor is used, the detection unit 9 is not limited to the storage unit 8 as described above, and may be between the oil seal unit 6 and the storage unit 8.

  Further, as a further example of a sensor applicable to the apparatus 100 according to the present invention, a sensor that detects a change in the refractive index of light in an oil phase and a gas phase can be mentioned. In such a sensor, when the sensor tip portion is in the air, the difference in refractive index between the material of the tip portion such as Teflon (registered trademark) and the air is large, so that the light is totally reflected and the original direction ( However, when the liquid is in the liquid, the difference between the refractive index of the material of the tip and the liquid becomes small, so that light is almost emitted into the liquid and does not return to the light receiver. It is. That is, when there is lubricating oil in the detection unit 9 and the tip portion of the sensor is in the lubricating oil, light does not return to the light receiving unit, and this can be detected. Such a sensor can also be attached by protruding the tip of the sensor into the storage portion 9 as in the case of the sensor detecting the change in capacitance. Moreover, you may attach a sensor front-end | tip part between the said oil seal part and a storage part.

  In the apparatus 100 according to the present invention, the oil leak detecting means 9 for detecting the lubricating oil leaked from the drive motor 3 of the drive means 1 is provided in the storage part 8, so that the lubrication from the storage part 8 is performed. Lubricating oil can be detected before the oil overflows. Therefore, it is possible to take measures (for example, replacement of the oil seal) to prevent the leakage of the lubricating oil at an early stage, and it is possible to prevent the chamber 2 from being contaminated by the lubricating oil.

  In FIG. 1, the detection unit 9 is provided in the storage unit 8. However, the detection unit 9 may be provided between the oil seal unit 6 and the storage unit 8. Even in the motor speed reducer 4.

  In the apparatus 100 according to the present invention, when the oil leakage detection means performs arithmetic processing on the information on the lubricating oil in the storage section 8 obtained from the detection section (sensor) 9, that is, "the calculation means such as CPU is ROM or RAM. However, it may be realized by hardware that performs the same processing. However, the functional block is realized by executing a program code stored in a recording medium such as Further, it can also be realized by combining hardware that performs a part of the processing and the above-described calculation means that executes the program code for controlling the hardware and the remaining processing. That is, the oil leak detection means is not particularly limited as long as it is a means capable of detecting the lubricating oil leaked from the oil seal portion 6, and is, for example, a sight glass for visually detecting the leaked lubricating oil. May be.

  The sight glass may be installed directly on the apparatus 100 or at a position away from the apparatus 100. When the sight glass is directly installed on the apparatus 100, the sight glass itself can be the detection unit 9. When the sight glass is installed at a position away from the device 100, the liquid level information of the lubricating oil in the storage unit 8 may be detected and the information may be transmitted directly or indirectly to the sight glass. For example, when the lubricating oil in the storage unit 8 is directly pulled out of the apparatus 100 and detected by a sight glass, the extraction unit can be the detection unit 9.

  An embodiment in which the sight glass is installed directly on the apparatus 100 is shown in FIG. FIG. 4 is a perspective view from the side of the sight glass 9 ′ used in this embodiment (FIG. 4A) and a perspective view from above (FIG. 4B).

  As shown in FIG. 3, the sight glass 9 ′ is integrally formed so as to communicate with the storage unit 8 of the apparatus 100. As shown in FIGS. 4A and 4B, the sight glass 9 ′ includes an inflow port 10, a see-through unit 11, and an exhaust port 12 into which the lubricating oil stored in the storage unit 8 flows, and the transparent member 13 is provided. By adopting a configuration in which the inside of the see-through portion 11 is sandwiched and the inside is sealed, a see-through window (not shown) for observing the see-through portion 11 from the outside of the sight glass 9 ′ is formed. Although two transparent members 13 are shown in FIG. 4, only one side may be transparent.

  After the lubricating oil reaches the storage portion 8, it further flows into the sight glass 9 'from the inlet 10, so that the presence of the lubricating oil in the storage portion 8 can be easily observed from the perspective window. The discharge port 12 functions as an air port for releasing the air in the sight glass 9 '. In addition, the discharge port 12 functions as an air port, and by connecting to a discharge means described later, after the see-through portion 11 is filled with the lubricant, the leaked lubricant can be discharged. . In such a case, by arranging the position of the discharge port 12 at a position lower than the wall surface of the storage unit 8, the leaked lubricating oil is prevented from overflowing from the storage unit 8 beyond the wall surface of the storage unit 8 and flowing downward. can do.

  In the case where the sight glass is installed at a position away from the apparatus 100, the sight glass 9 'is connected to the storage portion 8 through the extraction pipe (not shown). Thus, the sight glass 9 ′ is arranged such that when the lubricating oil leaked from the oil seal portion is stored in the storage portion 8, the stored lubricating oil flows into the inlet of the sight glass 9 ′. .

  Note that the sight glass 9 ′ shown in FIG. 4 is an example of a sight glass that can be used in the present invention, and various types of sight glass having such shapes can be used. Further, the sight glass may be connected to the storage unit 8 at any angle as long as the lubricating oil flows from the storage unit 8. Further, the angle of the see-through window is not particularly limited as long as the discharge port 12 is provided at the top. Further, the see-through unit 11 may be provided with a means such as an illuminating means for enabling the inflow of the lubricating oil to be easily seen. Further, in FIG. 3, the sight glass 9 ′ is directly connected to the storage unit 8 and is configured to detect the lubricating oil stored in the storage unit 8, but the sight glass 9 ′ is formed from the wall surface of the storage unit 8. The structure provided below the storage part 8 so that the overflowing lubricating oil may be introduced and detected.

  The apparatus 100 according to the present invention only needs to include the driving unit 1, at least one chamber 2, the storage unit 8, and the oil leak detection unit, and further processes the signal obtained from the oil leak detection unit. Warning signal output means for outputting a warning signal may be provided. According to such a configuration, the operator can be warned of the leakage of the lubricating oil leaked from the oil seal portion 6. Therefore, it becomes possible for the user of the apparatus to easily recognize the necessity of replacement of the oil seal, proper installation of the oil seal, discharge of the lubricating oil from the storage portion, and the like.

  The warning signal output means is a means for outputting a warning signal based on a comparison between an input value from the oil leak detection means and a predetermined reference value (threshold value). The warning signal output means only needs to be able to compare the input value from the oil leak detection means with a predetermined reference value and warn the operator based on the comparison result. In the apparatus 100 according to the present invention, the detection is possible. When the sight glass as described above is used for the section 9, the sight glass itself can be an oil leak detection means and a warning signal output means.

  When the oil leak detection means and the warning signal output means are functional blocks as described above, the warning signal output means includes a processing unit that compares the input value from the oil leak detection means with a predetermined reference value. And an output unit that outputs a warning signal based on the output from the processing unit. In this case, the processing unit includes a threshold value storage unit that stores a threshold value that is a predetermined reference value, a comparison unit that compares the input value from the detection unit with the threshold value, and an oil leak based on the comparison result. And a determination unit that determines whether or not the level is a level that requires a warning, and the output unit may change the input value from the processing unit as, for example, a frequency change, a voltage change, or the like. If it outputs, it will not specifically limit. Here, the predetermined reference value may be, for example, an input value from the detection means in the gas phase, an input value from the detection means in the lubricating oil phase, an alarm mode to be output, or the like It may be appropriately selected depending on

  The device 100 according to the present invention may further include alarm output means for outputting an alarm based on the warning signal. According to such a configuration, the operator can be warned more quickly of leakage of the lubricating oil leaked from the oil seal portion 6. Therefore, it is possible for the user of the apparatus to easily recognize the necessity of replacement of the oil seal in the apparatus 100 according to the present invention, proper installation of the oil seal, discharge of the lubricating oil from the storage portion, and the like. The alarm output means is not particularly limited as long as it is a means for outputting an alarm in response to the warning signal. Such alarm output means may be an analog meter or the like that indicates the leakage of the lubricating oil in the detection unit 9 with a needle, or may indicate the leakage of the lubricating oil by lighting or blinking a lamp. Further, the leakage of the lubricating oil may be indicated by sound and / or a buzzer. In the apparatus 100 according to the present invention, when a sight glass as described above is used for the detection unit 9, the sight glass itself can be an oil leak detection unit, a warning signal output unit, and an alarm output unit.

  The apparatus 100 according to the present invention only needs to include the drive unit 1, at least one chamber 2, the storage unit 8, and the oil leakage detection unit, and further includes a discharge unit that discharges the lubricating oil from the storage unit 9. It may be. As a result, it is possible to discharge the lubricating oil leaked from the oil seal portion 6 and stored in the storage portion 8, so that it is possible to more efficiently prevent the lubricating oil from being mixed into the chamber 2. . Such discharge means may manually discharge the lubricating oil from the reservoir 8 based on the information in the sight glass or the alarm. Alternatively, the lubricating oil may be automatically discharged from the storage unit 8 in response to the warning signal. According to this configuration, since the lubricating oil leaked from the oil seal portion 6 is automatically discharged from the storage portion 8, the monitoring burden on the user of the device 100 according to the present invention is reduced, and the lubricating oil chamber 2 is moved to. Can be reliably prevented. Such discharge means is not particularly limited, and examples thereof include a discharge port provided in the storage unit 9 and a free float trap (available as a free float steam trap from TLV).

  The apparatus 100 according to the present invention has been described with reference to FIGS. 1 and 2 by taking the drive means 1 including the drive motor 3 and the motor speed reducer 4 as an example. However, the drive means 1 uses lubricating oil. The driving unit is not particularly limited as long as it is a driving unit, and may be a driving unit including only a driving motor. Further, the drive means and the motor speed reducer included in the drive means may be one each or plural.

  1 and 2, the apparatus 100 according to the present invention has been described according to the configuration in which the storage unit 8 is provided directly below the oil seal unit 6. The position is not particularly limited as long as the lubricating oil leaked from the oil seal portion 6 can be stored. Further, when the driving unit 1 has a plurality of oil seal portions 6, it is preferable that the storage portions 8 are provided at a plurality of locations corresponding to each oil seal portion 6.

  In the device 100 according to the present invention, the shape of the reservoir 8 is not particularly limited as long as the lubricant can be stored. Further, the volume may be appropriately selected according to the use and type of the apparatus.

  In other words, an object of the present invention is to provide a driving means using lubricating oil and at least one chamber, the driving means being provided in the upper part of the chamber, and the chamber being supplied with driving force by the driving means. The apparatus further includes a storage part for storing the lubricating oil leaked from the oil seal part of the driving means, and an oil leak detection means for detecting the leaked lubricating oil. In particular, it does not lie in the shape, material and / or size of the reservoir and detector specifically described in this specification. Further, the operating unit provided in the chamber may be a component of the apparatus that is supplied with a driving force by the driving means and applies a physical force to a substance present in the chamber. Examples of the working unit include a stirrer such as a screw and a stirring blade for stirring the substance introduced into the room. That is, the apparatus according to the present invention is preferably an apparatus used for an application in which it is desired that the lubricating oil is prevented from entering the chamber. That is, the apparatus according to the present invention is preferably an apparatus that performs, for example, drying, reaction, mixing, filtration / squeezing, classification or grinding in a room. In other words, the apparatus is preferably a drying apparatus, a reaction apparatus, a mixing apparatus, a filtration / squeezing apparatus, a classification apparatus, a pulverizing apparatus, or the like. According to such a configuration, it is possible to perform drying, reaction, mixing, filtration / squeezing, classification or pulverization in the room while detecting the lubricating oil leaked from the driving means. Therefore, it becomes possible to prevent the inside of the chamber from being contaminated by the lubricating oil.

  The apparatus may be used in a state where the internal pressure of the chamber and / or the drive motor is evacuated (or reduced in pressure), may be used in a pressurized state, or may be used at normal pressure. It may be used in.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  According to the present invention, a drying device, a reaction device, a mixing device, a filtration / squeezing device, a classifying device, or a pulverizing device provided in the upper part of a chamber provided with an operating part whose driving means is supplied with driving force by the driving means. In such a device, it is possible to prevent the lubricating oil used in the driving means from entering the chamber. Therefore, not only various manufacturing industries such as pharmaceutical industry, agricultural chemicals, chemical products, chemical industrial chemicals manufacturing industry such as electronic industrial chemicals, food industry, electronic parts (for example, semiconductors, printed circuit boards, etc.) manufacturing industry, wood drying, It is applicable to fields such as sludge drying and clothes drying (including bathroom drying), and is very useful.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of the present invention, and is a partial cross-sectional view schematically illustrating a portion where a driving unit and a drying chamber are connected in an apparatus according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating an embodiment of the present invention and illustrating an embodiment of an oil leak detection device in an apparatus according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating an embodiment of the present invention and illustrating an embodiment of an oil leak detection device in an apparatus according to the present invention. It is a figure which shows sectional drawing of the sight glass used as a detection means in one Embodiment of this invention. It is the schematic which shows the principal part structure of a stirring-type vacuum dryer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive means 2 Chamber 3 Drive motor 4 Motor speed reducer 5 Lubricating oil storage tank 6 Oil seal part 7 Actuation part 8 Storage part 9 Detection part (sensor)
9 'detector (sight glass)
DESCRIPTION OF SYMBOLS 10 Inflow port 11 Perspective part 12 Discharge port 13 Transparent member 100 Apparatus

Claims (13)

A device comprising a driving means using lubricating oil, and at least one chamber, the driving means being provided at an upper portion of the chamber, and the chamber having an operating part to which a driving force is supplied by the driving means,
The apparatus further includes a storage part for storing the lubricating oil leaked from the oil seal part of the driving means, and an oil leak detection means for detecting the leaked lubricating oil,
The oil leak detection means includes a detection unit that detects the leaked lubricating oil,
The said detection part is provided between the said oil seal part and the storage part, or the storage part, The apparatus characterized by the above-mentioned.   The apparatus according to claim 1, further comprising a discharging unit that discharges the lubricating oil from the storage unit.   The apparatus according to claim 1 or 2, wherein the oil leak detection means includes a sight glass for visually detecting the leaked lubricating oil.   The apparatus according to claim 1, wherein the detection unit is a sensor for detecting the leaked lubricating oil.   The warning signal output means for outputting a warning signal based on a comparison between an input value from the oil leak detection means and a predetermined reference value is further provided. apparatus.   6. The apparatus according to claim 5, wherein the discharging means operates based on the warning signal.   7. The apparatus according to claim 5, further comprising alarm output means for outputting an alarm based on the warning signal.   The apparatus according to claim 4, wherein the sensor is a sensor that detects a change in capacitance value between an oil phase and a gas phase.   The apparatus according to claim 4, wherein the sensor is a sensor that senses a change in the refractive index of light in an oil phase and a gas phase.   The apparatus according to claim 1, wherein the driving means is a motor including a driving motor and a motor speed reducer.   The apparatus according to claim 10, wherein the storage unit and the detection unit are provided in the motor speed reducer.   The apparatus according to any one of claims 1 to 11, wherein drying, reaction, mixing, filtration / squeezing, classification or pulverization is performed in the chamber. The apparatus according to claim 1, wherein the internal pressure of the chamber is reduced or increased.

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