JP3909078B2 - Heat treatment apparatus and heating method using heat treatment apparatus - Google Patents

Description

  The present invention relates to a heat treatment apparatus and a heating method using the heat treatment apparatus, which can easily exhaust the superheated steam when heating the object to be heated using the superheated steam and reduce the cost. is there.

  A conventional sterilization apparatus sterilizes an object to be sterilized with superheated steam in a dispersing device, and then separates and exhausts the object to be sterilized and gas with a cyclone (for example, see Patent Document 1).

JP 2002-320663 A

  The conventional heat treatment apparatus has a problem that a sterilization process, which is one of the heat treatment processes, and a process of exhausting gas are performed in separate processes, each of which requires an apparatus and is expensive. there were. Moreover, since the process of performing the sterilization process and the process of exhausting must be performed in a continuous process, there is a problem that it is difficult to freely determine the time for performing the sterilization process, that is, the heating.

  The present invention has been made to solve the above-described problems, and provides a heat treatment apparatus capable of performing heat treatment of an object to be heated while exhausting, and a heating method using the heat treatment apparatus. With the goal.

  The present invention relates to a heat treatment apparatus for heat-treating an object to be heated, a main body capable of generating a rising vortex airflow inside by a rotation of the blade part having a blade part at the bottom, and superheated steam for supplying superheated steam into the main body Air other than the object to be heated in the main body by the action of the rising vortex airflow formed by the supply means and a hollow cylinder in which one end is inserted in the center upper part of the main body to a predetermined height position and the other end is exposed outside the main body And an exhaust unit that exhausts superheated steam, a supply unit that supplies a heated object into the main body, and a discharge unit that discharges the heated object from the main body.

  The heat treatment apparatus of the present invention is a heat treatment apparatus for heat-treating an object to be heated. A main body capable of generating an upward vortex airflow by rotation of the blade part having a blade part at the bottom, and superheated steam in the main body Superheated steam supply means to supply and heated inside the main body by the action of the rising vortex airflow formed by a hollow cylinder with one end inserted in the center upper part of the main body to a predetermined height position and the other end exposed outside the main body Since it has an exhaust part for exhausting air other than the object and superheated steam, a supply part for supplying the object to be heated into the main body, and a discharge part for discharging the object to be heated from within the main body, the exhaust of superheated steam is It becomes easy and heating of the article to be heated by superheated steam can be performed at low cost.

Embodiment 1 FIG.
Embodiments of the present invention will be described below. 1 is a diagram showing a configuration of a heat treatment apparatus according to Embodiment 1 of the present invention, FIG. 2 is a partial sectional perspective view for explaining an internal configuration of a main body of the heat treatment apparatus shown in FIG. 1, and FIG. FIG. 4 is a diagram illustrating the result of sterilization performed by the heating method using the heat treatment apparatus shown in FIG. 1. FIG. 4 is a diagram for explaining the state of the rising vortex air current in the main body of the heat treatment apparatus shown in FIG. is there. The superheated steam referred to in the present application means a steam that is dry at a temperature higher than 100 ° C. at normal pressure, has a large amount of heat, and contains almost no oxygen. In particular, when the temperature is 170 ° C. or higher, the characteristics can be sufficiently exhibited. In the figure, there is a main body 2 having a blade portion 1 at the bottom and capable of generating rising vortex air currents A and B by rotation of the blade portion 1.

  As shown in FIG. 3, the rising vortex airflows A and B rotate in the center direction with respect to the rising airflow (B) while the rotating airflow around the center ascends (A) due to the horizontal rotation of the blade portion 1. It is an airflow to do. As shown in FIG. 2, the blade portion 1 has one end so that, for example, three blades 10, 11, 12 are arranged at intervals of about 120 degrees around the center of the bottom portion in the main body 2 and rotate in the horizontal direction. Is fixed to the rotating shaft 14 and has a vertical portion along the wall surface of the main body 2 at the other end. Furthermore, the blades 10, 11, and 12 are configured to be inclined 30 degrees upward from the horizontal direction. When the blades 10, 11, and 12 are formed so as to be inclined in this manner, the rising vortex air currents A and B are easily formed, and the object to be heated is easily stirred. The inclination angle of the blades 10, 11, and 12 is not limited to 30 degrees, but is effective within a range of 20 to 45 degrees. When the inclination angle is less than 20 degrees, the rising vortex air currents A and B are difficult to be formed, and when the inclination angle is greater than 45 degrees, the heated object may be destroyed more than necessary. The blade 1 is rotated by rotating a rotating shaft 14 at the center of the bottom of the main body 2 by a motor 13. Moreover, the rotational speed of the blade | wing part 1 for generating ascending vortex | eddy_current A and B is about 3 m / sec-20 m / sec with the peripheral speed of the blade | wings 10, 11, and 12. FIG. Ascending vortex air currents A and B hardly occur when the speed is 3 m / sec or less, and when the speed is 20 m / sec or more, the blades 10, 11, and 12 are in an idle state with respect to the object to be heated.

  The inner wall of the main body 2 has a vertical portion 20 formed to have substantially the same diameter from the lower portion to a predetermined height position, and a portion higher than the predetermined height position is inclined toward the center portion so as to be narrower than the vertical portion 20. It consists of the inclined part 21. This generates a rotating airflow in the vertical portion 20 and raises it along the inclined portion 21 to facilitate the generation of ascending vortex airflows A and B, and the object to be heated comes into contact with the inclined portion 21 and gravity. Therefore, separation between the object to be heated and the exhaust (air and superheated steam) is ensured. Further, the main body 2 has a main body temperature measuring means 22 for measuring the temperature in the main body 2, a boiler 30 for supplying superheated steam into the main body 2 via the pipe 110 and the flow path switching means 100, and superheated steam generating means. And superheated steam supply means 3. Saturated steam (100 ° C .: normal pressure) created by the boiler 30 is heated by the superheated steam generation means 31 by, for example, a high-frequency induction heating method (for example, frequency 20 KHz). Until the vapor pressure is 0.05 to 0.18 MPa).

  Further, in the vicinity of the main body 2 of the pipe 100, a supply temperature measuring means 8 for measuring the supply temperature of superheated steam supplied into the main body 2 and one end at a predetermined height of the main body 2 at the center upper portion of the main body 2. The exhaust part 4 is formed by a hollow cylinder that is inserted to a position and the other end is exposed to the outside of the main body 2 and exhausts air other than the heated object in the main body 2 and superheated steam by the action of the rising vortex air currents A and B. And have. When the exhaust unit 4 performs exhaust, the valve 103 is opened and exhausted out of the heat treatment apparatus. The diameter d of the hollow cylindrical shape of the exhaust part 4 is approximately half the size of the inner diameter D of the main body 2 (the inner diameter D of the main body 2 indicates the size of the vertical portion 20). 1. The diameter d of the hollow cylinder is effective if it is in the range of about one half to about one third of the size of the inner diameter D. If the diameter d of the hollow cylinder of the exhaust part 4 is larger than half of the inner diameter D of the main body 2, there is a high possibility that the object to be heated will be exhausted together. This is because it becomes difficult to perform exhaust by the action of the airflows A and B.

  Further, one end of the exhaust part 4 is inserted into the center upper portion of the main body 2 up to a predetermined height position of the main body 2, which is a predetermined height position. This depends on the capacity of the main body 2 and the capacity of the object to be heated. It is set appropriately. For example, when heating an object to be heated whose capacity is half of the capacity of the main body 2, the predetermined height position h of the main body 2 is one third of the height H of the main body 2 at the center upper portion of the main body 2. Inserted by a length of ± 20%. This is because if the length is too long, the objects to be heated may be exhausted together, and if the length is too short, the exhaust cannot be performed efficiently. Therefore, it is necessary to appropriately set the capacity of the main body 2 and the capacity of the object to be heated. In addition, a simple filter such as a bag filter 40 is installed in the cylindrical cylinder of the exhaust unit 4 to prevent foreign matter from being inserted into the exhaust unit 4. Further, an exhaust temperature measuring means 9 for measuring an exhaust temperature exhausted from the inside of the main body 2 (air, superheated steam, etc.) is disposed in the vicinity of the main body 2 in the exhaust portion 4.

  Further, the supply unit 5 for supplying an object to be heated into the main body 2 is a lid body of the main body 2 formed on the upper portion of the main body 2. Therefore, the flexible part 41 is formed in a part of the outside of the main body 2 of the exhaust part 4 to cope with opening and closing of the supply part 5. In addition, the supply unit 5 is provided with a preliminary supply unit 50 that can open a part of the lid, and even if the supply unit 5 is not opened and closed, for example, if there is a small amount of additional object to be heated, the preliminary supply unit 50 to the main body 2 Can be supplied within. Furthermore, it has the discharge part 6 which discharges a to-be-heated material from the inside of the main body 2. The discharge unit 6 includes an openable / closable discharge port 60 formed in the lower portion of the main body 2, a drive unit 61 formed of, for example, a cylinder that opens and closes the discharge port 60, and a communication pipe 62 connected to the discharge port 60. The sealed space portion 63 that does not communicate with the outside and is not exposed to the outside.

  Furthermore, it has a dry air supply means 7 for supplying dry air into the main body 2, and superheated steam is supplied as a heat source from the superheated steam generation means 31 through the pipe 110 and the flow path switching means 100 to heat the air, Dry air having a temperature not higher than ° C., for example, a temperature of about 50 ° C. to 80 ° C. is created, and the dry air is supplied into the main body 2 via the pipe 111 and the valve 101. Further, when dry air is generated, the valve 102 is opened, and the superheated steam is exhausted from the exhaust unit 4 outside the heat treatment apparatus. In addition, in each location shown above, the location which a to-be-heated material contacts is formed, for example with the stainless steel material excellent in corrosion resistance.

  Next, a heating method using the heat treatment apparatus of Embodiment 1 configured as described above will be described. Here, various heat treatments such as drying treatment, sterilization treatment, and granulation treatment exist and can be appropriately handled as the heat treatment of the object to be heated in the present invention. First, superheated steam is generated using the boiler 30 and the superheated steam supply means 3 of the superheated steam supply means 3, and the superheated steam is supplied into the main body 2 via the pipe 110 and the flow path switching means 100. At the same time, the rotating shaft 14 is rotated by the motor 13 to rotate the blade 1 in the horizontal direction in the main body 2 to generate ascending vortex air currents A and B to preheat the main body 2. Then, the superheated steam is efficiently exhausted out of the heat treatment apparatus by the rising vortex air currents A and B obtained by the rotation of the blade part 1 from the exhaust part 4. And this heating is confirmed by measuring by the body internal temperature measuring means 22. If the ascending vortex airflows A and B are not generated in the main body 2 during the preheating, the superheated steam in the main body 2 is not exhausted well, and the superheated steam remains in the main body 2 and causes condensation. It is possible. Next, the flow path switching means 100 switches the superheated steam flow path to stop the supply of superheated steam from the superheated steam supply means 3, supplies the superheated steam to the dry air supply means 7, and the dry air supply means 7 Dry air is supplied, for example, for several minutes through the pipe 111 and the valve 101. This is a process for completely preventing condensation in the main body 2 and may not be necessary depending on the specifications and environment. Moreover, since the main body 2 is once warmed, even if dry air is supplied for several minutes, it is not cooled more than necessary.

  Next, after the preliminary heating is completed, the supply of dry air from the dry air supply means 7 and the rotation of the blade part 1 are stopped, the supply part 5 is opened, and the object to be heated is supplied into the main body 2. In addition, although it is the capacity | capacitance of the to-be-heated material to heat-process, if it is a capacity | capacitance about a half of the capacity | capacitance of the main body 2, ascending vortex | eddy_current A and B can be generated efficiently. Next, after supplying the object to be heated, the supply part 5 is closed, and the blade part 1 in the main body 2 is rotated to generate the rising vortex air currents A and B in the object to be heated. For example, ascending vortex air currents A and B can be generated by rotating for about 30 seconds. This is because if the superheated steam is supplied from a state where the ascending vortex airflows A and B are not generated, the superheated steam may contact only a part of the object to be heated, which may cause a problem. Next, after the rising vortex airflows A and B are generated, the superheated steam is supplied from the superheated steam supply means 3 for a predetermined time to heat the object to be heated. Since the heat treatment is performed in the state where the rising vortex airflows A and B are generated in this way, as shown in FIG. 3, the heated object is rotated (B) and gravity while the exhaust gas is rising (A). It falls and the exhaust and the object to be heated are separated, and only the exhaust is exhausted from the exhaust part 4. The predetermined time determined at this time is, for example, the supply temperature supplied into the superheated steam main body 2 measured by the supply temperature measuring means 8 and the exhaust section 4 measured by the exhaust temperature measuring means 9. It is conceivable to measure the temperature of the exhaust gas discharged from the exhaust gas and set the supply time of superheated steam into the main body based on the difference between the supply temperature and the exhaust temperature.

  For example, a method of terminating the supply when the difference between the supply temperature and the exhaust temperature is almost eliminated, and a method of terminating after supplying for a predetermined time after the difference between the supply temperature and the exhaust temperature is almost eliminated. Next, after the supply of the superheated steam is completed for a predetermined time, the supply of the superheated steam is stopped, and the heated object is cooled and dried by supplying dry air of 100 ° C. or less from the dry air supply means 7 while rotating the blade portion 1. . The supply time of the dry air at this time can be about several minutes. And this cooling is confirmed by measuring with the temperature measuring means 22 in a main body. The term “cooling” as used herein is intended to reduce the temperature of the object to be heated to 100 ° C. or less. It is possible to cool. Next, the supply of dry air is stopped, the object to be heated is opened by the driving unit 61 while the blade unit 1 is rotated at a low speed, and the heating unit 61 is opened by the centrifugal force generated by the rotation of the blade unit 1. The portion is discharged from the discharge port portion 60 and discharged to the sealed space portion 63 through the communication pipe 62. Therefore, in this process, the blade portion 1 is rotated to such an extent that the rising vortex air currents A and B are not generated.

  A specific example performed by the heat treatment method using the heat treatment apparatus as described above is shown in FIG. (However, in the specific example in FIG. 4, the cooling and drying process by dry air is not performed.) This is an example in which the heat treatment is performed for the purpose of sterilization. As is apparent from the figure, it can be confirmed that the sterilization treatment is sufficiently possible in the supply time of the superheated steam within several tens of seconds.

  According to the heat treatment apparatus of the first embodiment configured as described above, the heating process and the exhaust process can be performed in the same apparatus, so that the heating time can be freely adjusted. Therefore, it is possible not only to efficiently heat the object to be heated, but also to easily exhaust the superheated steam. Therefore, the heat treatment of the object to be heated can be performed at low cost.

  Note that preheating in the first embodiment or cooling and drying by dry air may not be necessary depending on the specifications of the heat treatment. The preheating step is not necessary when the main body is already heated by performing the heat treatment continuously, and the cooling and drying step with dry air is sufficiently possible even with drying only with superheated steam. There may be some specifications. Moreover, although the example which measures and measures temperature by each temperature measurement means was shown, it is not restricted to this, It is also possible to control suitably from an experience value, an experimental value, etc.

Embodiment 2. FIG.
5 is a diagram showing the configuration of a heat treatment apparatus according to Embodiment 2 of the present invention, FIG. 6 is a partial sectional perspective view for explaining the internal configuration of the main body of the heat treatment apparatus shown in FIG. 5, and FIG. FIG. 6 is a diagram showing the result of granulation performed by a heating method using the heat treatment apparatus shown in FIG. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Stirring means 200 for stirring the vicinity of the side wall is provided on the lower side wall of the main body 2. As shown in FIG. 6, the stirring means 200 is rotated by the motor 201 about the vertical direction in the main body 2.

  Next, a heating method using the heat treatment apparatus of the second embodiment configured as described above will be described. Here, among the heat treatments of the object to be heated in the present invention, a case by the granulation treatment will be described. First, as in the first embodiment, superheated steam is generated using the boiler 30 and the superheated steam supply means 3 of the superheated steam supply means 3, and superheated in the main body 2 via the pipe 110 and the flow path switching means 100. Supply steam. At the same time, the rotating shaft 14 is rotated by the motor 13 to rotate the blade 1 in the horizontal direction in the main body 2 to generate ascending vortex air currents A and B to preheat the main body 2. Then, the superheated steam is efficiently exhausted out of the heat treatment apparatus by the rising vortex air currents A and B obtained by the rotation of the blade part 1 from the exhaust part 4. And this heating is confirmed by measuring by the body internal temperature measuring means 22. Next, the flow path switching means 100 switches the superheated steam flow path to stop the supply of superheated steam from the superheated steam supply means 3, supplies the superheated steam to the dry air supply means 7, and the dry air supply means 7 Dry air is supplied, for example, for several minutes through the pipe 111 and the valve 101.

  Next, after the preliminary heating is completed, the supply of dry air from the dry air supply means 7 and the rotation of the blade part 1 are stopped, the supply part 5 is opened, and the substance (melted by the heat of superheated steam in the main body 2) A heated object containing a binder is supplied. Next, after supplying the object to be heated, the supply unit 5 is closed and the blade part 1 in the main body 2 is rotated to generate the rising vortex air currents A and B in the object to be heated. And stir. The rotation speed in the stirring means 200 at this time is, for example, about 500 rpm to 2500 rpm. It is desirable that the stirring by the stirring means 200 is performed by rotating around the vertical direction different from the horizontal direction of the blade portion 1 at the bottom of the outer periphery of the main body 2 and stirring. This is for the purpose of loosening an object to be heated which has become harder than necessary with the binder by stirring by the stirring means 200, and is performed in order to obtain a desired granulated shape. Next, after the rising vortex airflows A and B are generated, the superheated steam is supplied from the superheated steam supply means 3 for a predetermined time, and the substance melted by the heat of the superheated steam of the heated object is melted to produce the heated object. Perform grain processing. Since the heat treatment is performed in the state where the rising vortex airflows A and B are generated in this way, as shown in FIG. 3, the heated object is rotated (B) and gravity while the exhaust gas is rising (A). It falls and the exhaust and the object to be heated are separated, and only the exhaust is exhausted from the exhaust part 4. The predetermined time determined at this time is, for example, the supply temperature supplied into the superheated steam main body 2 measured by the supply temperature measuring means 8 and the exhaust section 4 measured by the exhaust temperature measuring means 9. It is conceivable to measure the temperature of the exhaust gas discharged from the exhaust gas and set the supply time of superheated steam into the main body based on the difference between the supply temperature and the exhaust temperature.

  For example, a method of terminating the supply when the difference between the supply temperature and the exhaust temperature is almost eliminated, and a method of terminating after supplying for a predetermined time after the difference between the supply temperature and the exhaust temperature is almost eliminated. Next, after the supply of the superheated steam is completed for a predetermined time, the supply of the superheated steam is stopped, and the heated object is cooled and dried by supplying dry air of 100 ° C. or less from the dry air supply means 7 while rotating the blade portion 1. . Next, the supply of dry air is stopped, and the discharge port portion 60 of the discharge portion 6 is opened by the drive portion 61 while rotating the blade portion 1 at a low speed that does not generate the rising vortex air currents A and B. The heated portion is discharged from the discharge port portion 60 by the centrifugal force generated by the rotation of the blade portion 1 and is discharged to the sealed space portion 63 through the communication pipe 62.

  A specific example of the granulation treatment performed by the heat treatment method using the heat treatment apparatus as described above is shown in FIG. This is an example performed for the purpose of granulation treatment. As can be seen from the figure, it can be confirmed that the granulation treatment is sufficiently possible with the superheated steam supply time of 1 minute.

  According to the heat treatment apparatus of the second embodiment configured as described above, the same effect as that of the first embodiment can be obtained. In the case of an object to be heated containing a substance (binder) that melts, granulation can be performed easily. Therefore, the heat treatment of the object to be heated can be performed at low cost.

It is a figure which shows the structure of the heat processing apparatus of Embodiment 1 of this invention. It is a fragmentary sectional perspective view for demonstrating the internal structure of the main body of the heat processing apparatus shown in FIG. It is a figure for demonstrating the state of the rising vortex air current in the main body of the heat processing apparatus shown in FIG. It is a figure which shows the result of the sterilization process performed with the heating method using the heat processing apparatus shown in FIG. It is a figure which shows the structure of the heat processing apparatus of Embodiment 1 of this invention. FIG. 6 is a partial cross-sectional perspective view for explaining the internal configuration of the main body of the heat treatment apparatus shown in FIG. 5. It is a figure which shows the result of the granulation process performed with the heating method using the heat processing apparatus shown in FIG.

Explanation of symbols

1, 10, 11, 12 blade part, 2 body, 3 superheated steam supply means, 4 exhaust part,
5 supply section, 6 discharge section, 7 dry air supply means, 8 supply temperature measurement means,
9 Exhaust temperature measuring means, 20 vertical part, 21 inclined part, 200 stirring means.

Claims (12)

In a heat treatment apparatus for heat-treating an object to be heated, a main body having a blade part at the bottom and capable of generating an upward vortex air current by rotation of the blade part, and superheated steam supply means for supplying superheated steam into the main body And at the center upper part of the main body, one end is inserted up to a predetermined height position of the main body and the other end is formed by a hollow cylinder exposed outside the main body, and the heated body in the main body is operated by the rising vortex airflow. An exhaust unit that exhausts air other than the object and superheated steam, a supply unit that supplies the object to be heated into the main body, and a discharge unit that discharges the object to be heated from within the main body A heat treatment apparatus. 2. The diameter of the hollow cylindrical shape of the exhaust part is configured in a range of about one half to about one third of the inner diameter of the main body. The heat treatment apparatus as described. The inner wall of the main body has a narrower taper shape that is narrower than the vertical portion, with a vertical portion formed with substantially the same diameter from the lower portion to a predetermined height position, and a portion higher than the predetermined height position inclined toward the center portion. The heat treatment apparatus according to claim 1, wherein the heat treatment apparatus includes an inclined portion. The blades are arranged in such a manner that three blades are arranged at intervals of about 120 degrees around the center of the bottom in the main body and rotate in the horizontal direction, and each blade is 20 degrees to 45 degrees upward from the horizontal direction. The heat treatment apparatus according to any one of claims 1 to 3, wherein the heat treatment apparatus is inclined. The heat treatment apparatus according to any one of claims 1 to 4, wherein the discharge portion is formed in a sealed space that is formed at a lower portion of the main body and is not exposed to the outside. 6. The heat treatment apparatus according to claim 1, further comprising dry air supply means for supplying dry air into the main body. The heat treatment apparatus according to any one of claims 1 to 6, wherein the lower side wall of the main body is provided with stirring means for stirring the vicinity of the side wall. A heating method using the heat treatment apparatus according to any one of claims 1 to 5, wherein superheated steam in the main body is supplied and the blade portion is rotated to generate the rising vortex air current. A step of preheating; a step of supplying the superheated steam after the completion of the preheating and stopping the rotation of the blades and supplying the heated object into the main body; and after supplying the heated object, Rotating the blade portion to generate the rising vortex air current in the heated object, and supplying the superheated steam for a predetermined time after the rising vortex air current is generated to heat the heated object. The heating method using the heat processing apparatus characterized by the above-mentioned. In the heating method using the heat treatment apparatus according to claim 6, the step of preheating the main body while supplying the superheated steam in the main body and rotating the blade portion to generate the rising vortex air current, A step of stopping the supply of the superheated steam and the rotation of the blade part after the preheating is completed and supplying the object to be heated in the main body; and the blade part in the main body is rotated after the object to be heated is supplied A step of generating the ascending vortex air current in the object to be heated; a step of supplying the superheated steam for a predetermined time after the ascending vortex air current is generated; and heating the object to be heated; and supplying the superheated steam for a predetermined time. After the completion, the supply of the superheated steam is stopped and the blades are rotated to supply the dry eddy current at 100 ° C. or less while generating the rising vortex air flow to dry and cool the heated object. Heating method using the heat treatment apparatus characterized by comprising the step of. The heating method using the heat treatment apparatus according to claim 6, wherein the lower side wall of the main body includes stirring means for stirring the vicinity of the side wall, and the blade is rotated while supplying the superheated steam in the main body. A step of preheating the main body while generating an ascending vortex air current, and a substance that melts in the main body by the heat of the superheated steam after the preheating is finished and the supply of the superheated steam and the rotation of the blades are stopped. Supplying the object to be heated containing, and after supplying the object to be heated, rotating the blade portion in the main body to generate a rising vortex air current in the object to be heated and stirring with the stirring means And after the generation of the rising vortex air current, the superheated steam is supplied for a predetermined time to heat the object to be granulated, and the superheated steam is supplied for a predetermined time. The method further comprises the step of stopping the supply of superheated steam and rotating the blade portion to supply the dry air at 100 ° C. or lower while generating the rising vortex air flow to dry and cool the object to be heated. A heating method using a heat treatment apparatus. The supply temperature of the superheated steam supplied into the main body and the exhaust temperature exhausted from the exhaust section are measured, and the supply time of the superheated steam into the main body is determined by the difference between the supply temperature and the exhaust temperature. The heating method using the heat treatment apparatus according to claim 8, wherein the heating method is set. The heating according to any one of claims 8 to 11, further comprising a step of discharging the heated object from the discharge port while rotating the blade portion after the treatment of the heated object. A heating method using a processing apparatus.

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