JP7364865B2 - Heat treatment equipment - Google Patents

Description

The present invention relates to a heat treatment apparatus, and more specifically, a casing in which a heating chamber is formed, an article conveying means for carrying an article into the heating chamber from an entrance of the casing and carrying it out from an exit, and an interior of the heating chamber. The present invention relates to a heat treatment apparatus equipped with a heating nozzle installed in a heating nozzle for injecting superheated steam.

Conventionally, a heat treatment device is known that performs heat treatment by injecting superheated steam onto an article, and such a heat treatment device includes a housing in which a heating chamber is formed inside, and a heat treatment device that heats an article by injecting superheated steam into the heating chamber. There are known devices that include an article conveying means for carrying in articles and carrying them out from an outlet, and a heating nozzle that is provided inside the heating chamber and injects superheated steam (Patent Documents 1 and 2).
Here, when this heat treatment apparatus is used for cooking food, it is necessary to clean the heat treatment apparatus after the heat treatment because fat and food residue are scattered during the heat treatment of the food.

Japanese Patent Application Publication No. 2017-213166 JP2019-72221A

However, as food fats and other substances generated when food is heat-treated scatter and adhere to the inner surface of the heating chamber, the heating chamber must be cleaned. The work had become complicated.
In view of these problems, the present invention provides a heat treatment apparatus that can efficiently clean a heating chamber.

That is, the heat treatment apparatus according to the invention of claim 1 includes: a housing in which a heating chamber is formed; an article conveying means for carrying an article into the heating chamber from an entrance of the housing and carrying it out from an exit; A heat treatment apparatus comprising a heating means provided inside a chamber and heating an article conveyed by the article conveyance means,
comprising a cleaning nozzle that sprays cleaning liquid, and a support member that installs the cleaning nozzle on the article conveying means,
When the article conveying means moves the cleaning nozzle together with the support member into the heating chamber from the entrance or exit of the housing, the cleaning nozzle sprays the cleaning liquid inside the heating chamber.

According to the invention of claim 1, by installing the cleaning nozzle for cleaning the inside of the heating chamber in the article conveying means, the cleaning nozzle can be moved into the heating chamber, so that the cleaning nozzle is sprayed from the cleaning nozzle. The heating chamber can be efficiently cleaned using the cleaning liquid.

Front view of the heat treatment apparatus according to this example Enlarged view of the cleaning unit Front view showing the cleaning device of the heat treatment device Side view of cleaning unit Diagram explaining the elevating means for elevating the cleaning unit A diagram explaining a cleaning unit according to a second embodiment A diagram explaining a cleaning unit according to a third embodiment Side view of the heat treatment apparatus according to the fourth embodiment

The illustrated embodiment will be described below. FIG. 1 shows a heat treatment apparatus 1 that heat-treats food F as an article by spraying superheated steam on it. 2, an article conveying means 3 for carrying the food F into the heating chamber Ra from the entrance 2a of the housing 2 and carrying it out from the exit 2b, and a heating device provided inside the heating chamber Ra for injecting superheated steam. It is equipped with a nozzle 4.
The interior of the casing 2 is divided by a plurality of partition walls 2c, and the interior of the casing 2 includes two heating chambers Ra, an inlet chamber Rb in which the inlet 2a is formed, and an inlet chamber Rb in which the outlet 2b is formed. An exit chamber Rc is formed.

The article conveyance means 3 is provided so as to pass through the housing 2 from the entrance 2a to the exit 2b, and when the food F is placed at a position protruding upstream from the entrance 2a, the food F is transported. The food F is carried into the heating chamber Ra formed in the housing 2, and heat treatment is performed while the food F is moved.
As shown in FIG. 2, the article conveyance means 3 of this embodiment includes a plurality of conveyance chains 11 provided in parallel, rod-shaped members 12 attached at predetermined intervals across these conveyance chains 11, and a plurality of conveyance chains 11. The sprocket 13 (see FIG. 1) is provided at both ends of the sprocket 13, and a drive motor (not shown) that drives the sprocket 13 is provided.
The conveyance chain 11 has a structure in which a support piece 11a provided with a bar-shaped member 12 and a connecting piece 11b provided with no bar-shaped member 12 provided between the support pieces 11a and the support pieces 11a are connected. are doing.
The support piece 11a and the connection piece 11b each include two plates each having a plurality of substantially elliptical shapes and pins provided at both ends of the plates.

With the above configuration, the rod-shaped member 12 moves in circulation as the conveyance chain 11 is driven, and when the rod-shaped member 12 is moving upward, the conveyance part on which the food F is placed is moved. and then folded back downward at the sprocket 13 to form a return portion.
The drive motor is controlled by a control means, and when heating the food F, the food F is moved from the left side to the right downstream side in FIG. 1, and when cleaning the heating chamber Ra. In this case, the cleaning unit 22 installed in the conveying section is reciprocated in both downstream and upstream directions.
Here, when moving the cleaning unit 22 to clean the heating chamber Ra, the control means moves while recognizing the position of the cleaning unit 22 based on a signal from an encoder (not shown) provided in the article conveying means 3. It is designed to let you do so.

In the heating chamber Ra formed inside the casing 2, heating nozzles 4 are provided at positions above and below the conveying section of the conveying means 4, respectively, and these heating nozzles 4 supply superheated steam to It is connected to water vapor supply means 14.
Each of the heating nozzles 4 is equipped with a large number of pipes arranged in parallel in a horizontal plane, and injects superheated steam from above and below the food F placed on the conveyance section of the article conveyance means 3 to cool the food F. It is designed to be heat treated.
Further, the heating nozzle 4 has a structure that can be easily removed, and by removing it when cleaning the heat treatment device 1, it is possible to easily perform cleaning and maintenance of the heating nozzle 4. .
A duct 15 is provided on the top surface of each of the inlet chamber Rb and outlet chamber Rc formed in the housing 2, and the superheated steam leaking from the heating chamber Ra is discharged to the outside. ing.

Furthermore, a drain pan 2d is formed at the bottom of the housing 2, and by storing water in the drain pan 2d when heat-treating the food F, oils and fats generated by the heat-treating of the food F can be stored. etc. will fall and be collected.
Further, a drain pipe 16 is provided at the bottom of the drain pan 2d, so that after the heat treatment of the food F is completed, it is possible to drain the fats and oils that have fallen into the water.

Briefly explaining the operation of the heat treatment apparatus 1 having the above configuration, when the food F is first placed on the article conveying means 3 at a position exposed to the outside than the housing 2, the article conveying means 3 moves the food F passes through the entrance 2a formed in the casing 2, and further passes through the entrance chamber Rb.
Thereafter, in the heating chamber Ra, the heating nozzle 4 injects superheated steam from above and below onto the food F transported by the article transport means 3, and the food F is heat-treated by the superheated steam.
The food F heated in this way passes through the exit chamber Rc by the article conveyance means 3, is carried out to the outside from the exit 2b of the housing 2, and is then discharged to a subsequent process (not shown).
Note that heat treating the food F using the heat treatment apparatus 1 in this manner is well known, and further explanation of the operation of the heat treatment of the food F by the heat treatment apparatus 1 will be omitted.

When the food F is heat-treated by the heat treatment device 1, if the food F is a food containing fat, such as a hamburger steak or fish fillet, the heating may scatter the oil or food residue. There is.
These oils and fats adhere to the inner surface of the heating chamber Ra and the upper and lower heating nozzles 4, but also after the scattered oils and fats fall into the drain pan 2d, when water is drained from the drain pan 2d, Some fats and oils may remain attached to the bottom of the drain pan 2d.
It is desirable to remove such fats and oils adhering to the heating chamber Ra and the heating nozzle 4 each time the heating treatment of the food F is completed, but the heating chamber Ra is formed inside the housing 2. Therefore, there is a problem that cleaning work is complicated.

Therefore, in this embodiment, as shown in FIG. 3, a cleaning device 21 is provided in the heat treatment apparatus 1 to clean the heating chamber Ra after the heat treatment is completed.
The cleaning device 21 includes a cleaning unit 22 that sprays a cleaning liquid and is movable by the article conveying means 3, and a cleaning liquid supply means 23 that is provided outside the housing 2 and supplies the cleaning liquid to the cleaning unit 22. , a supply hose 24 disposed between the cleaning unit 22 and the cleaning liquid supply means 23, and a hose reel 25 as a hose storage means for storing the supply hose 24. Further, the entrance chamber Rb of the casing 2 is provided with a cylinder 26 as a lifting means used when the cleaning unit 22 cleans the article conveying means 3.
The cleaning device 21 is movably provided by a trolley 27, and after the heat treatment device 1 is used, it is placed near the end of the article conveying means 3 protruding from the inlet 2a or outlet 2b of the casing 2. It has become.

FIG. 2 shows a front view of the cleaning unit 22, and FIG. 4 shows a side view of the cleaning unit 22. Here, the cleaning unit 22 can be placed on the truck 27 and moved together with the truck 27 when the cleaning device 21 is not in use.
The cleaning unit 22 includes a cleaning nozzle 31 provided toward the inner surface of the heating chamber Ra, and a support member 32 provided with the cleaning nozzle 31 and installed on the article conveying means 3.
The support member 32 is provided in a direction perpendicular to the transport direction of the article transport means 3, and leg portions 32a installed on the transport chain 11 are provided at both ends of the support member 32.
The leg portion 32a is provided with an engagement pin 32b facing downward, and when installing the leg portion 32a on the conveyance chain 11, the engagement pin 32b is connected between the plates constituting the connecting piece 11b. By inserting it between them, the engagement pin 32b engages with the connecting piece 11b, and the cleaning unit 22 is prevented from shifting when the article conveying means 3 is operated.

The cleaning nozzles 31 are provided in a row at the upper and lower portions of the support member 32 over substantially the entire widthwise area of the article conveying means 3, and are connected through piping formed inside the support member 32 (not shown). , is in communication with the supply hose 24.
When the cleaning liquid is supplied from the cleaning liquid supplying means 23 through the supply hose 24, the cleaning liquid is injected from the cleaning nozzle 31, thereby removing fats and oils adhering to the inner surface of the heating chamber Ra and the heating nozzle 4. It looks like this.
Here, by installing the leg portion 32a of the supporting member 32 on the connecting piece 11b of the conveying chain 11, the cleaning nozzle 31 provided downward is located between the bar-shaped members 12. It looks like this.
As a result, when the cleaning liquid is injected from the cleaning nozzle 31 facing downward, the cleaning liquid passes between the rod-shaped members 12 and is injected downward, and the cleaning liquid passes through the space between the rod-shaped members 12 and the heating nozzle 4 located below the conveying section and the drain pan. It is designed to reach up to 2d.

The cleaning liquid supply means 23 is composed of a cleaning liquid tank 23a provided at a required position and a pump 23b connected via piping. The cleaning liquid is sprayed from the nozzle 31. Note that the cleaning liquid tank 23a may be provided on the truck 27.
The supply hose 24 is arranged between the pump 23b and the cleaning unit 22, and passes through the inlet 2a of the housing 2 to connect them. In other words, from the outside of the housing 2 The cleaning liquid is supplied to the cleaning unit 22.

The hose reel 25 is driven by a motor M controlled by the control means, and the control means recognizes the position of the cleaning unit 22 based on a signal from the encoder of the article conveyance means 3 and moves the hose reel 25 in forward and reverse directions. By rotating the supply hose 24, the supply hose 24 is sent out and pulled in.
By doing this, the supply hose 24 does not slacken between the cleaning unit 22 and the hose reel 25, and the supply hose 24 is prevented from becoming tangled in the heating chamber Ra or being caught in the article conveying means 3. be able to.
Note that the hose reel 25 may be biased by a spring, and the supply hose 24 may be sent out and pulled in while maintaining a constant tension between the hose reel 25 and the cleaning means.

The cylinders 26 are provided in the entrance chamber Rb of the housing 2 as shown in FIG. 3, and two cylinders 26 are provided on both sides of the article conveying means 3 as shown in FIG.
The support member 32 of the cleaning unit 22 is provided with an abutting member 32c that the cylinder 26 abuts from below, and by pushing up the abutting member 32c from below with the cylinder 26, the cleaning unit 22 is moved upward. It is now possible to do so.
When the cylinder 26 raises the cleaning unit 22, the engagement pin 32b provided on the leg 32a of the support member 32 is disengaged from the connecting piece 11b of the conveyance chain 11, and the cleaning unit 22 is moved to the position of the lifting means 26. The conveyance chain 11 and the rod-shaped member 12 can be relatively moved while being stopped at the article conveyance means 3, and the article conveyance means 3 can be cleaned.

To explain the operation of the cleaning device 21 of the heat treatment device 1 having such a configuration, first, when the heat treatment of the food F is completed in the heat treatment device 1, the water in the drain pan 2d is drained using the drain port 16.
Next, the operator moves the cleaning device 21 using the trolley 27, positions it near the upstream end or the downstream end (in this embodiment, the upstream end) of the article conveying means 3, and moves the cleaning unit 22 to the article conveying means 3. installed in the transport section.
At this time, the leg portion 32a of the support member 32 constituting the cleaning unit 22 is placed on the top of the connecting piece 11b constituting the conveyance chain 11, and the engaging pin 32b is engaged with the connecting piece 11b.
Thereby, when the article transport means 3 moves the cleaning unit 22 into the housing 2, it is possible to prevent the cleaning unit 22 from shifting.

When the article conveyance means 3 is activated and the cleaning unit 22 moves toward the inside of the casing 2, the control means recognizes the position of the cleaning unit 22 based on a signal from an encoder provided in the article conveyance means 3. At the same time, the rotation of the hose reel 25 is controlled so that the supply hose 24 is fed out between the cleaning unit 22 and the hose reel 25 so that it does not slacken.
When the control means recognizes that the cleaning unit 22 has entered the heating chamber Ra inside the housing 2, the control means operates the cleaning liquid supply means 23 to supply the cleaning liquid to the cleaning unit 22 from the cleaning nozzle 31. Spray cleaning liquid.
Since the cleaning unit 22 is provided with cleaning nozzles 31 facing in the vertical direction, the cleaning liquid is sprayed onto the heating nozzles 4 provided above and below the conveying section of the article conveying means 3 and the inner surface of the heating chamber Ra. , oils and fats adhering to these are removed.
At this time, the position of the cleaning unit 22 is set so that the cleaning liquid sprayed from the cleaning nozzle 31 facing downward passes between the rod-shaped members 12 and is sprayed downward. The heating nozzle 4 and drain pan 2d provided below are also cleaned.
Then, the control means controls the article conveying means 3 to reciprocate the cleaning unit 22 several times in the range where the heating chamber Ra is provided, and at this time, the cleaning liquid sprayed from the cleaning nozzle 31 is removed from the drain pan 2d together with the removed oil and fat. is discharged from the drain pipe 16.

When the cleaning of the heating chamber Ra and the heating nozzle 4 is completed in this manner, the control means causes the article conveying means 3 to move the cleaning unit 22 to the elevating means 26 provided in the entrance chamber Rb.
Then, the cylinder 26 raises the cleaning unit 22, and in this state, the article conveying means 3 is operated, so that the conveying chain 11 and the rod-like member 12 of the article conveying means 3 move below the cleaning unit 22.
By spraying a cleaning liquid from the cleaning nozzle 31 facing downward, the conveyance chain 11 and the rod-shaped member 12 can be cleaned. Further, the cleaning liquid falls into the drain pan 2d.
Note that cleaning of the article conveying means 3 can be performed before cleaning the heating chamber Ra, and the elevating means 26 may be provided in the exit chamber Rc or in the heating chamber Ra. .

In this manner, by using the cleaning device 21 of the heat treatment device 1, the heating chamber Ra and the cleaning nozzle 31 inside the housing 2 can be automatically cleaned.
In other words, even if the heating chamber Ra is closed, the cleaning unit 22 can be moved into the heating chamber Ra by the article transport means 3, so that the inside of the heating chamber Ra can be cleaned more efficiently than manually. It is now possible.
In addition, by positioning the support member 32 on the conveyor chain 11 so that the cleaning liquid sprayed from the cleaning nozzle 31 facing downward passes between the rod-shaped members 12, the heating nozzle positioned below can be 4 and the bottom surface of the drain pan 2d can also be cleaned.
Furthermore, when the cleaning unit 22 is moved by the article conveyance means 3, the supply hose 24 is sent out by the hose reel 25, thereby preventing the supply hose 24 from becoming slack or being caught in the article conveyance means 3. .
By raising the cleaning unit 22 using the cylinder 26, the conveyance chain 11 and rod-shaped member 12 of the article conveyance means 3 can also be cleaned.

In the above embodiment, the cleaning liquid supply means 23 is installed outside the housing 2, and the supply hose 24 is arranged between it and the cleaning unit 22. However, the cleaning liquid supply means 23 can be integrated with the cleaning unit 22. Alternatively, the cleaning liquid supply means 23 may be moved within the heating chamber Ra.
Furthermore, the heating nozzle 4 of the heating chamber Ra may be removed from the heating chamber Ra before being cleaned by the cleaning device 21 and cleaning may be performed at another location. It may be pre-cleaned and then removed and cleaned by the operator.

Here, the cleaning unit 22 of this embodiment has a configuration in which cleaning nozzles 31 are arranged in a line above and below a support member 32, and the cleaning liquid is sprayed from these cleaning nozzles 31 all at once.
However, if the supply pressure of the cleaning liquid from the cleaning liquid supply means 23 is insufficient, the cleaning liquid cannot be injected from each cleaning nozzle 31 with sufficient pressure. A valve may be provided to control the jetting of the cleaning liquid from the cleaning nozzle 31.
For example, if the opening/closing valve of the cleaning nozzle 31 facing downward is closed and the opening/closing valve of the cleaning nozzle 31 facing upward is opened, the cleaning liquid can be sprayed only upward. When the cleaning unit 22 is raised by the provided elevating means 26, by stopping the spraying of the cleaning liquid from the upwardly facing cleaning nozzle 31, the cleaning liquid can be sprayed onto the article conveying means 3 moving downward. .
Alternatively, a plurality of groups may be created using a plurality of cleaning nozzles 31, and the cleaning liquid may be sprayed for each group.

FIG. 6 is a diagram illustrating the heat treatment apparatus 2 according to the second embodiment, and in particular is a diagram illustrating the cleaning unit 22.
The cleaning unit 22 of the first embodiment is provided with the cleaning nozzles 31 above and below the support member 32, but as described above, when the cleaning liquid is jetted from all the cleaning nozzles 31 at once, the jetting pressure may be insufficient. .
Therefore, in this embodiment, only one row of cleaning nozzles 31 is provided on the support member 32 of the cleaning unit 22, and both ends of the support member 32 are rotatable to the legs 32a installed on the conveyance chain 11 of the article conveyance means 3. It is pivoted on.
The support member 32 is rotated by a motor 41 controlled by a control means, thereby making it possible to direct the cleaning nozzle 31 upward or downward.
By configuring the cleaning unit 22 in this way, the cleaning nozzle 31 can be directed upward or downward by the motor 41, and as in the cleaning unit 22 of the first embodiment, the inner surface of the heating chamber Ra and the heating nozzle can be 4, cleaning liquid can be sprayed.
Also, in the cleaning unit 22 of this embodiment, if the cleaning nozzle 31 is directed downward while being raised by the elevating means 26 shown in FIG. 5, the article conveying means 3 can be cleaned.

FIG. 7 is a diagram illustrating the heat treatment apparatus 2 according to the third embodiment, and in particular is a diagram illustrating the cleaning unit 22.
The cleaning unit 22 of the first and second embodiments has a configuration in which the cleaning nozzles 31 are arranged over substantially the entire widthwise area of the article conveying means 3, whereas in this embodiment, the cleaning nozzles 31 are arranged in a part in the widthwise direction. is provided, and the cleaning nozzle 31 is moved in the width direction of the article conveying means 3.
Therefore, the support member 32 of the cleaning unit 22 of this embodiment includes a holding member 42 provided with a total of six cleaning nozzles 31, three each in the upper and lower directions, and a holding member 42 that extends in the width direction of the article conveying means 3. It is provided with forward movement means 43 for moving.
The reciprocating means 43 is connected to a ball screw 43a provided on the upper part of the support member 32 in the width direction of the article conveying means 3, a motor 43b for rotating the ball screw 43a, and the holding member 42. The nut 43c moves with the rotation of the ball screw 43a.
The motor 43b is controlled by a control means, and by rotating the ball screw 43a, it is possible to reciprocate the holding member 42 together with the nut 43c in the width direction of the article conveyance means 3.
Further, the cleaning nozzle 31 supported by the holding member 42 is located between the rod-shaped members 12 of the article conveying means 3 and sprays cleaning liquid downward from between the rod-shaped members 12. It is now possible.
With such a configuration, while the cleaning unit 22 is moved by the article conveying means 3, the reciprocating means 43 moves the holding member 42 in the width direction, thereby cleaning the heating chamber with the cleaning liquid sprayed from the cleaning nozzle 31. Ra and the heating nozzle 4 can be cleaned.
Furthermore, in the case of the configuration of this embodiment, by positioning the holding member 42 at a position where oils and fats are likely to adhere and moving the cleaning unit 31 back and forth, it is possible to intensively remove these oils and fats. Become.

FIG. 8 shows a side view of the heat treatment apparatus 1 according to the fourth embodiment. In the first to third embodiments, the cleaning unit 22 is moved by the article conveying means 3, whereas in the fourth embodiment, the cleaning unit 22 is provided in parallel with the article conveying means 3. 51 to move it.
As the cleaning unit 22 in this embodiment, one having the same configuration as the cleaning unit 22 according to the first to third embodiments can be used, and by spraying the cleaning liquid upward and downward, the heating It has a configuration that allows cleaning liquid to be injected into the interior of the chamber Ra.
The cleaning unit moving means 51 is provided between the article conveying means 3 and the heating nozzle 4 provided above, and is provided in parallel with the article conveying means 3, and at least its upstream end is located above the It is provided so as to protrude to the outside of the entrance 2a of the housing 2.

The cleaning unit moving means 51 includes a conveyance chain 52 provided in parallel, and a mounting means 53 that holds the cleaning unit 22 and is moved by the conveyance chain 52.
The mounting means 53 is composed of a pair of cylinders 53a connected to each conveyor chain 52 via a bracket, and the support member 32 of the cleaning unit 22 has an engaging portion 32d with which the cylinder 53a engages. It is provided.
With this configuration, when the mounting means 53 is operated to engage the cylinder 53a with the engaging portion 32d of the cleaning unit 22, the cleaning unit 22 can be movably held by the cleaning unit moving means 51. It becomes possible.

Further, the cleaning liquid supply means for supplying the cleaning liquid to the cleaning nozzle 31 of the cleaning unit 22 can be configured to be movable by a cart, as in the first to third embodiments, and can be connected to the cleaning unit 22. The supply hose 24 can also be sent out or retracted by the hose reel 25 driven by the motor M.
On the other hand, a cleaning liquid supply means 23 may be provided in the housing 2, and a supply hose 24 may be arranged between the cleaning liquid supply means 23 and the cleaning unit 22 inside the heating chamber Ra. may be provided integrally with the cleaning unit 22.

According to the heat treatment apparatus 2 having such a configuration, the heating chamber Ra and the upper and lower heating nozzles 4 can be cleaned by moving the cleaning unit 22 by the cleaning unit moving means 51 in contrast to the first embodiment described above. In addition, the article conveying means 3 can also be cleaned.
At this time, for example, by moving the cleaning unit 22 from the upstream side to the downstream side by the cleaning unit moving means 51 and operating the article conveying means 3 from the downstream side to the upstream side, the conveying chain 11 of the article conveying means 3 Since the rod-shaped member 12 moves relative to the cleaning unit 22, these can be efficiently cleaned.
Note that the configuration of the cleaning unit 22 in the fourth embodiment may be similar to the configuration of the cleaning unit 22 described in the second and third embodiments.

In the first to third embodiments described above, the structure for installing the support member 32 of the cleaning unit 22 on the article conveying means 3 may be a structure other than that described in these embodiments, for example. The engaging pin 32b may be omitted and the leg portion 32a may be placed directly on the conveyance chain 11.
Further, in each of the above embodiments, the cleaning nozzle 31 of the cleaning unit 22 is fixed to the support member 32, but it can be attached swingably so that the jetting direction of the cleaning nozzle 31 can be changed. , it becomes possible to widen the cleaning range with the cleaning liquid.
Further, in each embodiment, the heating chamber Ra may be first cleaned using a cleaning liquid containing a chemical, and then the heating chamber Ra may be rinsed with water as rinsing water.
In this case, separate cleaning units 22 may be used for chemicals and rinsing water, or one cleaning unit 22 may be connected to a medicine supplying means and a rinsing water supplying means as the cleaning liquid supplying means 23. Alternatively, the supply of rinsing water may be switched.
In each of the above embodiments, the heat treatment apparatus 1 heat-treats the article using superheated steam, but other heat treatment apparatuses include a heat treatment apparatus equipped with a heating nozzle that injects steam, and a heat treatment apparatus equipped with a heater. , a heat treatment device equipped with a burner may be used.

1 Heat treatment device 2 Housing 2d Drain pan 3 Article conveyance means 4 Heating nozzle 11 Conveyance chain 12 Rod-shaped member 21 Cleaning device 22 Cleaning unit 23 Cleaning liquid supply means 24 Supply hose 25 Hose reel (hose supply means)
26 Lifting means 31 Cleaning nozzle 32 Support member 51 Cleaning unit moving means

Claims (4)

a housing having a heating chamber formed therein; an article conveying means for carrying an article into the heating chamber from an entrance of the housing and carrying it out from an exit; and an article conveying means provided inside the heating chamber and conveyed by the article conveying means. In a heat treatment apparatus equipped with a heating means for heating an article to be treated,
comprising a cleaning nozzle that sprays cleaning liquid, and a support member that installs the cleaning nozzle on the article conveying means,
Heat treatment characterized in that when the article conveying means moves the cleaning nozzle together with the support member into the heating chamber from the entrance or exit of the housing, the cleaning nozzle sprays a cleaning liquid inside the heating chamber. Device. The article conveyance means includes conveyance chains provided in parallel, and a plurality of rod-shaped members attached at predetermined intervals across these conveyance chains,
The cleaning nozzle is configured to be able to spray cleaning liquid downward, and the supporting member supports the cleaning nozzle so that the cleaning liquid sprayed from the cleaning nozzle passes between the rod-shaped members. The heat treatment apparatus according to claim 1, characterized in that: Claim 1 or Claim 2, characterized in that a cleaning liquid supply means for supplying cleaning liquid to the cleaning nozzle is provided outside the housing, and the cleaning liquid supply means and the cleaning nozzle are connected via a supply hose. heat treatment equipment. A hose storage means for storing the supply hose is provided outside the housing,
4. The heat treatment apparatus according to claim 3, wherein the hose storage means sends out and draws in the supply hose depending on the position of the cleaning nozzle.

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