JP2008271883A - Method and device of cooking foodstuff by superheated steam - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roasting method and a roasting device of food ingredients such as a hamburger or a steak capable of scorching without the food ingredients such as the hamburger or the steak heatedly sticking to a metal plate. <P>SOLUTION: The food ingredients to be heated are mounted on a plurality of strips of metal plates heated to 170°C or higher by superheated steam of 170°C or higher in which the long sides are adjacent each others with an interval, the food ingredients to be heated are roasted to 170°C or higher by the metal plate heated to 170°C or higher, the superheated steam of 170°C or higher blown to the food ingredients to be heated from the upside, and the superheated steam of 170°C or higher blown out of gaps between the metal plates. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a method and apparatus for firing fish and meat, and more particularly to a conveyor-type continuous automatic firing method excellent in the quality and yield of an object to be heated during firing and a continuous automatic firing apparatus using the firing method. The present invention also relates to a baking cooking apparatus for fish and meat such as hamburger or steak, and more particularly to a method and apparatus for heating an object to be heated in baking cooking such as hamburger or steak.
Furthermore, the present invention relates to a method and apparatus for heating food with superheated steam such as baking, heat cooking, sterilization and steaming of fish, meat or processed products thereof.

In the case of cooking such as hamburger or steak, place the object to be baked on an iron plate dish and place it on a conveyor whose heating temperature is adjusted for each section. It has already been known to suck and remove meat juice such as lard and cook hamburger or steak (see Patent Document 1). In addition, it is already known that a fish paste product or the like is fired on a metal plate of a caterpillar conveyor formed of a plurality of metal plates (see Patent Document 2).
The heating cooking device is provided with an upper runway of a conveyor-like net-like or grid-like conveyor, and a superheated steam spray nozzle that opens toward the upper and lower surfaces of the upper runway of the conveyor, respectively, and is heated. It is already known to cook fish and livestock meat with steam (see Patent Documents 3 and 4).
JP-A-6-245865 Japanese Patent Laid-Open No. 11-4668 Japanese Patent Laid-Open No. 2004-41098 Japanese Patent Laid-Open No. 2004-121431

For example, fish and meat are placed on an iron plate, and the iron plate is directly heated by gas burner heating or electromagnetic induction heating, whereby fish and meat are baked and cooked. However, in baking cooking of fish and meat using this iron plate, part of the fish and meat sticks to and adheres to the iron plate and peels off, reducing the finish and yield of the product, and cleaning the iron plate after cooking. It becomes complicated and problematic. Further, if the washing is insufficient, the finish of the next fish or meat is poorly cooked, and further, the finish and texture are unavoidable due to the oxidized oil, which is a problem.
The present invention solves problems related to adhesion of raw materials such as hamburgers and steaks to the conveyor when continuously baking and cooking unheated products such as hamburgers and steaks on the conveyor. The purpose is that.

  When the temperature of the metal plate such as a steel plate or an iron plate heated by the superheated steam is lower than 170 ° C. when baking is performed by applying superheated steam to a material such as hamburger or steak that is moving on the conveyor, When a material such as hamburger or steak is easily baked on the metal plate, and the temperature of the metal plate heated by superheated steam is 170 ° C. or higher, preferably 200 ° C. or higher, the material such as hamburger or steak is burnt. I found it difficult to stick to the iron plate. In particular, when superheated steam is ejected from the gaps between the metal plates, the finished baked hamburgers and steaks are beautiful, and the baked hamburgers and steaks that are easily baked by inverting the metal plates are automatically separated. It has been found that it can be easily taken out. The present invention is based on such a discovery.

  The present invention forms a gap where superheated steam is ejected between metal plates, and a material such as hamburger or steak is placed on the gap, and the superheated steam sprayed from above is ejected from the gap between the metal plates. By heating a material such as hamburger or steak with a superheated steam and a metal plate heated to a temperature of 170 ° C or higher, preferably 200 ° C or higher with superheated steam, the material such as hamburger or steak becomes a metal plate. It aims at providing the baking method and apparatus of raw materials, such as a hamburger and steak, which can be burnt without burning.

That is, the present invention is heated to a temperature of 170 ° C. or higher by superheated steam of 170 ° C. or higher, and the object to be heated is placed on a plurality of adjacent strip-shaped metal plates with long sides spaced from each other. The metal plate being heated to the above temperature, superheated steam having a temperature of 170 ° C. or higher sprayed on the object to be heated from above, and superheated steam having a temperature of 170 ° C. or higher ejected from the gap between the metal plates, There is a method for heating an object to be heated by superheated steam, which is characterized by firing the object to be heated to a temperature of 170 ° C. or higher. The object to be heated is placed on a plurality of rectangular metal plates adjacent to each other at intervals on the long side of each other, and the object to be heated is heated to 170 ° C. or more from above while moving the plurality of metal plates. Temperature The hot water vapor was sprayed and superheated water vapor at a temperature of 170 ° C. or higher was ejected from the gap between the metal plates, and the heated object was fired to a temperature of 170 ° C. or higher. After firing, the metal plate was inverted and fired. In the method of heating an object to be heated by superheated steam, the object to be heated is taken out. Further, according to the present invention, a plurality of rectangular metal plates that are adjacent to each other on the long side are provided in the heating chamber, and a nozzle opening is provided above the metal plate on the upper surface of the metal plate. A metal plate upper surface heating region in which a plurality of superheated steam spray nozzles are provided facing the part, and a metal plate lower surface portion in which a plurality of superheated steam spray nozzles are provided with the nozzle opening facing the lower surface of the metal plate The food heating apparatus is characterized by being formed by a heating region, and the present invention further includes an upper end path of a conveyor of an endless type conveyor apparatus in the heating chamber, and the conveyors are respectively A plurality of rectangular metal plates are arranged side by side on the long side, and the heating chamber is provided above the upper runway of the conveyor, and the nozzle opening is directed to the upper surface of the upper runway. Multiple superheated steam Upper runway upper surface heating region provided with injection nozzles, and upper runway lower surface provided with a plurality of superheated steam injection nozzles provided below the upper runway, with the nozzle openings facing the lower surface of the upper runway In addition, the present invention provides a heating device, wherein a plurality of rectangular metal plates are arranged side by side at long sides from each other. An endless conveyor device, an upper runway of the endless conveyor device, an upper runway heating chamber of the endless conveyor device provided with a superheated steam spray nozzle for the upper runway of the conveyor, and an upper runway An endless conveyor provided below the heating chamber, and comprising a lower runway of the endless conveyor device and a superheated steam spray nozzle for the lower runway of the conveyor The upper runway heating device of the conveyor device is provided above the upper runway of the conveyor device, and has a plurality of superheated steam with a nozzle opening facing the upper surface of the upper runway An upper runway upper surface heating region provided with an injection nozzle and an upper runway lower surface heating region provided below the upper runway and having a plurality of superheated steam spray nozzles with the nozzle opening facing the lower surface of the upper runway The lower runway heating chamber of the conveyor device is provided below the lower runway of the conveyor, and includes a plurality of superheated steam spray nozzles with the nozzle openings facing the lower surface of the lower runway, and the lower runway heating region It is in the food heating apparatus characterized by being formed.
In the baking method of superheated steam for food according to the present invention, superheated steam having a temperature of 170 ° C. or more is ejected from a gap between adjacent metal plates such as an iron plate, so that the heated metal plate is sandwiched between the foods. It is possible to prevent the food from sticking to a metal plate such as an iron plate while heating the food.
Further, in the food heating apparatus of the present invention, the plurality of superheated steam spray nozzles provided in the upper heating section of the metal plate and the lower heating section of the metal plate are respectively arranged above and above the metal plate with respect to the metal plate. It can be provided to be movable. In the food heating device of the present invention, the upper runway upper surface heating chamber or upper runway lower surface heating chamber or the upper runway upper surface heating chamber and the upper runway lower surface heating chamber are each provided with a plurality of superheated steam spray nozzles, It can be provided above the upper runway so as to be movable up and down with respect to the upper runway. Furthermore, in the food heating apparatus of the present invention, the upper runway upper surface portion heating chamber and / or the upper runway lower surface portion heating chamber is formed with a plurality of regions, and each region has a plurality of superheated steam spray nozzles. The object to be heated can be provided so as to be movable up and down. In the food heating apparatus of the present invention, the plurality of superheated steam spray nozzles are supported by a rack that engages with a gear, and can be provided so as to be movable up and down with respect to the upper runway. Furthermore, in the food heating apparatus of the present invention, the plurality of superheated steam spray nozzles provided in the lower runway heating chamber can be provided below the lower runway so as to be vertically movable with respect to the lower runway. Furthermore, in the food heating apparatus of the present invention, a plurality of regions are formed in the lower track heating chamber, and a plurality of superheated steam spray nozzles can be moved up and down relative to the object to be heated in each region. The plurality of superheated steam spray nozzles can be supported by a rack that engages with a gear, and can be provided so as to be movable up and down with respect to the lower running path. In addition, in the food heating apparatus of the present invention, the superheated steam spray nozzle can be formed in a tubular or box-shaped superheated steam chamber provided with a plurality of openings. Therefore, in the food heating device of the present invention, the interval between the upper runway or the lower runway and the nozzle opening of the superheated steam spray nozzle can be reduced, and the temperature of the heating surface of the upper runway or the lower runway can be increased, Moreover, the said space | interval can be enlarged, the temperature of the heating surface of an upper runway or a lower runway can be lowered | hung, and the temperature of the heating surface for each area | region of an upper runway and a lower runway can be adjusted easily.

The present invention is heated to a temperature of 170 ° C. or higher, preferably a temperature of 200 ° C. or higher by superheated steam of 170 ° C. or higher, and heated to a plurality of adjacent strip-shaped metal plates with their long sides spaced apart from each other. A metal plate that is heated to a temperature of 170 ° C. or higher, superheated steam at a temperature of 170 ° C. or higher sprayed from above, and superheated steam at a temperature of 170 ° C. or higher that exits from a gap between the metal plates; Thus, the heated object is baked and moved at a temperature of 170 ° C. or higher while heating the heated object, so that the heated object is not baked on the metal plate, and the fired heated object is taken out by inverting the metal plate. be able to.
Further, the present invention provides an endless type conveyor apparatus having an upper runway in a heating chamber for an object to be heated having a superheated steam injection hole, and an endless type conveyor in a lower runway heating chamber having a superheated steam injection hole. A conveyor runway of the apparatus is provided, and each of the conveyors has a plurality of rectangular metal plates arranged in parallel at intervals on the long side, and the heating chamber for the object to be heated is An upper runway upper surface heating chamber provided with a plurality of superheated steam spray nozzles with a nozzle opening facing the upper runway of the conveyor, and provided above the upper runway, the upper runway The upper runway lower surface portion heating chamber having a plurality of superheated steam spray nozzles with the nozzle opening facing the lower surface of the lower runway, the lower runway heating chamber is provided below the lower runway, Bottom Since it is formed with nozzle openings of a plurality of superheated steam spray nozzles, an object to be heated is placed on a plurality of strip-shaped metal plates heated to a temperature of 170 ° C. or higher, and the superheated steam is 170 ° C. 170 ° C. or higher coming out from the gap between the metal plate heated to the above temperature, superheated steam sprayed from above at a temperature of 170 ° C. or higher, and the metal plate heated to a temperature of 170 ° C. or higher by the superheated steam. Since the heated object can be moved while being heated by superheated steam at a temperature of 5 ° C, the heated object is not baked on the metal plate, and the fired heated object is reversed by inverting the metal plate. It can be automatically taken out from the metal plate, and it becomes easy to take out the object to be heated.

  In the present invention, the term “object to be heated” means an article to be fired and the object to be heated, and the term “heating” means heating and firing. In the present invention, the object to be heated is placed on the upper runway of the endless conveyor apparatus heated to a temperature of 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher. It is passed through a heating chamber, heated and baked. In the present invention, for example, when firing at a temperature of 300 ° C. or higher, the firing can be performed in a short time. However, for example, when firing at a temperature of 200 ° C., the firing is performed for a relatively long time. It has also been found that the burned product is more easily burned as the baking time is longer.

  The endless conveyor device used in the present invention can be, for example, a top plate chain conveyor such as a slat conveyor or a caterpillar type conveyor, and a plurality of metal plates such as rectangular steel plates or iron plates are arranged between long sides. An endless track is formed by arranging them at intervals. In the present invention, a rectangular metal plate such as a steel plate or an iron plate can be formed to have a width of, for example, 50 mm, for example, and a gap between the metal plates can be, for example, 1 to 1.5 mm. The size of the object to be heated is, for example, 70 to 130 mm. In this case, the number of gaps for heating the object to be heated by jetting superheated steam is 1 to 3. However, in order to heat the metal plate so that seizure of the object to be heated does not occur due to the superheated steam ejected from the gap between the metal plates, 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher. It is preferable that superheated steam heated to 170 ° C. or higher, preferably 200 ° C. or higher, and more preferably 300 ° C. or higher is distributed over the entire bottom of the object to be heated that is heated by the metal plate.

  In the present invention, the object to be heated is placed on a top plate that has been heated to a temperature of 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher in advance. Passed. The object to be heated is fired by superheated steam sprayed on the object to be heated, a top plate of a metal plate heated by the superheated steam, and superheated steam flowing between the object to be heated and the top plate. In order to heat the object to be heated, an upper heating region is formed on the upper side of the top plate. In the upper heating region, a superheated steam spray nozzle is provided above the top plate with the nozzle opening facing the top surface of the top plate, and 170 ° C or more, preferably 200 ° C or more from the superheated steam spray nozzle, More preferably, superheated steam having a temperature of 300 ° C. or higher is sprayed from the spray nozzle toward the top plate and the upper surface of the object to be heated to heat the object to be heated. On the other hand, a lower heating region is formed below the top plate. In the lower heating region, a superheated steam spray nozzle is provided with the nozzle opening facing the lower surface of the top plate, and the superheated steam spray nozzle is 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 Superheated steam having a temperature of ℃ or higher is sprayed toward the lower surface of the top plate to heat the top plate made of metal plate. In the present invention, the superheated steam in the lower heating region is ejected upward from the gap between the adjacent top plates made of metal plates to directly heat the object to be heated from below, and the top plate of the metal plate It flows between the upper surface and the lower surface of the object to be heated to heat the object to be heated.

  In the method of the present invention, when the object to be heated is a hamburger or steak, a burnt eye is formed on the surface in contact with a metal top plate such as a steel plate or an iron plate. Therefore, it is preferable that the burned surface of the hamburger steak or steak of the object to be heated is not baked on the metal top plate for heating during baking. Therefore, in the present invention, in order to avoid seizure of the hamburger or steak of the object to be heated to the metal top plate, the baking temperature of the hamburger or steak of the object to be heated is 170 ° C. or higher, preferably 200 ° C. or higher. More preferably, the temperature is set to 300 ° C. or higher. If the temperature of the superheated steam is 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher, the reason why the hamburger steak or the steak to be heated does not burn on the metal plate of the top plate is still unclear. However, once the hamburger or steak of the object to be heated is heated to a high temperature of 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher, It is thought to be due to melting and forming an oil film on the surface of the top plate made of a metal plate.

  Therefore, in the present invention, the superheated steam sprayed from below toward the back surface of the metal plate of the top plate is such that the metal plate of the top plate has a firing temperature of 170 ° C. or higher, preferably 200 ° C. or higher, more preferably. , Heated to 300 ° C. or higher, sprayed upward from the gap between the metal plates of the top plate, touched the lower surface of the object to be heated and steak, and then along the lower surface, the hamburger of the object to be heated It flows between the bottom surface of the steak and the oil film surface on the top plate, and the hamburger or steak of the object to be heated is baked to a baking temperature of 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 300 ° C. or higher. Then, the hamburger or steak of the heated object is prevented from being burnt on the metal plate of the top plate.

  In this invention, when forming a burnt on both surfaces of the hamburger and steak of a to-be-heated material, a burnt is formed by two baking processes. In this case, one surface is fired by the first firing step, and the other surface is fired by the subsequent second firing step. When heating the metal top plate of the endless type conveyor device, the first endless type conveyor device having the metal top plate for heating is used to heat one side of the hamburger or steak to be heated. Next, a second endless type conveyor device having a metal top plate for heating is used to burn and burn the other surface of the hamburger steak or steak. When scoring on both sides in this way, for example, when a joint conveyor device is arranged between two firing conveyor devices, and the spun conveyor device is rotated from the upper runway to the lower runway by the sprocket. In addition, the hamburger or steak of the object to be heated can be reversed and automatically turned over. In this case, an auxiliary tool such as a guide plate can be provided in order to safely and reliably turn over the hamburger or steak of the heated object whose one surface is baked.

  In the apparatus of the present invention, the upper runway upper surface heating chamber, upper runway upper surface heating chamber, or lower runway heating chamber is divided into a plurality of regions in the traveling direction of the conveyor, and the heating temperature of the heated surface is changed for each region. Can do. In the apparatus of the present invention, the superheated steam spray nozzle can support the space between the heated surface and the opening of the superheated steam spray nozzle so that the heating temperature of the heated surface can be changed. In this case, by reducing the distance between the heated surface and the opening of the superheated steam spray nozzle, the temperature of the heated surface can be increased, and the distance between the heated surface and the opening of the superheated steam spray nozzle is increased. As a result, the temperature of the heated surface can be lowered.

The temperature change of the heating surface when the distance between the heated surface and the opening of the superheated steam spray nozzle is changed. For example, the temperature of the superheated steam is 250 ° C. and 300 ° C. from the spray nozzle opening having a diameter of 2 mm. The result of measuring the temperature of the superheated steam by injecting superheated steam at 0 ° C. at an injection speed of 10 m / second and 20 m / second, respectively, and placing a thermometer at a predetermined distance from the injection nozzle opening is as follows. Table 1 shows.
Table 1
The distance from the injection nozzle and the change distance of the temperature and temperature drop (ΔT) of the superheated steam [mm] Injection speed 10 m / sec
0 250 ° C (ΔT = 0 ° C) 300 ° C (ΔT = 0 ° C)
10 240 ° C. (ΔT = 10 ° C.) 288 ° C. (ΔT = 12 ° C.)
20 236 ° C. (ΔT = 14 ° C.) 284 ° C. (ΔT = 16 ° C.)
30 235 ° C. (ΔT = 15 ° C.) 280 ° C. (ΔT = 20 ° C.)
40 234 ° C. (ΔT = 16 ° C.) 279 ° C. (ΔT = 21 ° C.)
50 233 ° C. (ΔT = 17 ° C.) 276 ° C. (ΔT = 24 ° C.)
100 231 ° C. (ΔT = 19 ° C.) 273 ° C. (ΔT = 27 ° C.)
150 230 ° C. (ΔT = 20 ° C.) 269 ° C. (ΔT = 31 ° C.)
Table 1 Continued distance [mm] Injection speed 20m / sec
0 250 ° C (ΔT = 0 ° C) 300 ° C (ΔT = 0 ° C)
10 241 ° C. (ΔT = 9 ° C.) 290 ° C. (ΔT = 10 ° C.)
20 238 ° C. (ΔT = 12 ° C.) 286 ° C. (ΔT = 14 ° C.)
30 236 ° C. (ΔT = 14 ° C.) 285 ° C. (ΔT = 15 ° C.)
40 235 ° C. (ΔT = 15 ° C.) 282 ° C. (ΔT = 18 ° C.)
50 234 ° C. (ΔT = 16 ° C.) 281 ° C. (ΔT = 19 ° C.)
100 229 ° C. (ΔT = 21 ° C.) 280 ° C. (ΔT = 20 ° C.)
150 229 ° C. (ΔT = 21 ° C.) 276 ° C. (ΔT = 24 ° C.)

  From the above measurement results, the temperature change of the injected superheated steam is approximately 20 to 30 ° C., and the temperature change is particularly large in the range of 10 to 30 mm from the injection nozzle opening. It turns out that the temperature change of the injected superheated steam becomes small as it leaves | separates 30 mm or more from a part. Further, by making the diameter of the injection hole adjustable and increasing the injection speed of superheated steam from the superheated steam injection port, the heating temperature of the surface of the object to be heated can be slightly increased, In the case where the interval of the heated object surface is made constant, it can be seen that it is preferably within 10 mm from the injection nozzle in order to effectively use the heating energy of the superheated steam. However, if the shape of the object to be heated such as food is not constant, it is difficult to finely position the object. Therefore, the interval between the opening of the injection nozzle and the heating surface of the object to be heated should be within 100 mm, preferably within 30 mm. It is understood that it is preferable to adjust the injection speed.

  In the present invention, the heating temperature of the superheated steam can be lowered by about 10 ° C. to 30 ° C. by changing the position from the opening of the injection nozzle from 10 mm to 100 mm. In order to further reduce the heating temperature of the superheated steam, the object to be heated is further separated from the jet nozzle opening. In contrast, in order to increase the heating temperature, the opening of the injection nozzle is brought closer to the object to be heated. When the heating temperature difference is set within 10 degrees, the distance between the portion near the opening of the injection nozzle and the portion far from the opening varies depending on the temperature and flow rate of the superheated steam. Is within. Thus, the heating temperature of the object to be heated by superheated steam can be increased by appropriately reducing the interval between the nozzle of the superheated steam spray nozzle and the object to be heated, and the opening of the superheated steam spray nozzle It is possible to lower the distance by appropriately increasing the distance between the object and the object to be heated.

  In the present invention, the superheated steam has a temperature of 170 to 400 ° C. and is obtained by heating saturated steam. In the present invention, in order to adjust the temperature of the heated surface of the object to be heated by moving the superheated steam injection nozzle close to or away from the opening of the superheated steam injection nozzle with respect to the object to be heated, The superheated steam spray nozzle is attached to a vertical reciprocating support member such as a screw type, a rack and pinion type, a hydraulic type or a pneumatic type so that the superheated steam jet nozzle can be moved closer to or away from the object to be heated.

  In the present invention, an object to be heated heated by superheated steam is a plurality of rectangular metal plates of a conveyor in which a plurality of rectangular metal plates of an endless conveyor device are arranged side by side at long sides. It can be placed on and heated. In the present invention, the rectangular metal plates arranged side by side in the endless type conveyor apparatus are heating plates made of metal such as a heating steel plate or an iron plate, and such a metal heating plate is a flat top chain conveyor. A top plate, for example, a caterpillar (trade name) of a caterpillar conveyor device or a slat of a slat conveyor can be used. When the object to be heated is placed on the endless conveyor device for heat treatment, the row of superheated steam spray nozzles is a direction that intersects the direction of movement of the object to be heated, and preferably in a direction orthogonal to it. is there. In the present invention, the object to be heated with superheated steam can be heated from both the upper surface and the lower surface of the object to be heated. When the object to be heated is a hamburger or steak, an oil film is formed on the upper surface of the metal heating plate, so that the heating plate of the flat top chain conveyor from which the object to be heated is removed again In order to be used for firing, air baking is performed at a temperature equal to or higher than the temperature at which the article to be heated is heated during firing in the lower path heating chamber, for example, at a temperature of 300 ° C. or higher, for example, 400 ° C.

  In the present invention, the pressure in the heating chamber is preferably set to a normal pressure (0.1 MPa) so that superheated steam does not jet out of the heating chamber during heating. In the present invention, when regions having different heating temperatures are provided in the heating chamber, it is preferable to form regions having different heating temperatures by changing the interval between the superheated steam spray nozzle opening and the object to be heated for each region. . In this case, the high heating temperature region can be formed by bringing the superheated steam spray nozzle opening closer to the object to be heated, and the low heating temperature region is formed by keeping the superheated steam spray nozzle opening away from the object to be heated. can do. When performing such temperature setting, under a superheated steam generator injection speed (superheater) at a predetermined temperature and a superheated steam injection speed with a predetermined amount of steam, for each distance from the superheated steam injection nozzle opening, Preferably, the temperature distribution of the superheated steam is measured in advance, and the position of the superheated steam spray nozzle opening in the heating chamber with respect to the object to be heated is determined based on the measured value.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the following descriptions and examples.
FIG. 1 is a schematic front cross-sectional view for explaining the outline of a heating apparatus using superheated steam according to an embodiment of the present invention. FIG. 2 is a schematic partial side sectional view of the inlet side of the heating apparatus using superheated steam of the embodiment shown in FIG. FIG. 3 is a schematic partial side sectional view of the outlet side of the heating apparatus using superheated steam of the embodiment shown in FIG. FIG. 4 is a schematic explanatory diagram for explaining an outline of an embodiment of the joint conveyor for connecting the heating apparatus using superheated steam according to the embodiment shown in FIGS. 1 to 3. 1 to 4, the same portions or corresponding portions are denoted by the same reference numerals.
Example 1

  The following description is based on one embodiment of the present invention shown in FIGS. In the heating device 1, there is provided an endless conveyor path 4 (shown by a one-dot chain line) formed of a top plate of an endless chain conveyor device, for example, a caterpillar steel plate 3 of the caterpillar type conveyor device 2. The circulation path of the endless conveyor path 4 circulates with the forward path forming the upper runway 5 and the return path forming the lower runway 6. The heating device 1 is formed with an upper runway heating chamber 7 for heating the upper runway 5 passing through the upper portion thereof, and a lower runway heating chamber 8 for heating the lower runway 6 passing therethrough is formed thereunder. ing. In this example, the caterpillar steel plate 3 of the caterpillar conveyor device 2 is held by an attachment 10 supported by a link plate 9 of the caterpillar conveyor device 2. The chain roller 11 of the caterpillar conveyor device 2 rotates on a guide plate 15 attached to a beam member 14 whose end is fixed to a column 13 standing on the bottom wall portion 12 of the upper runway heating chamber 7. It is provided as possible.

  In this example, the superheated steam of the heating heat source of the heating device 1 is produced by heating saturated steam with a super heater (not shown). In this example, the superheated steam heated by the super heater is branched off from a superheated steam pipe (not shown), and the superheated steam supply pipe 16 provided in the upper runway heating chamber 7 of the heating device 1. , 17 and 18. The superheated steam supply pipe 16 is for heating the upper surface portion of the upper runway 3 and is connected to the superheated steam introduction pipe portion 20 of the superheated steam injection pipe 19 provided on the upper runway 5 in the upper runway heating chamber 7. ing. The superheated steam supply pipe 17 is for heating the lower surface portion of the upper runway 5 and is connected to the superheated steam introduction pipe portion 22 of the superheated steam injection pipe 21 provided on the back side of the upper runway 5 in the upper runway heating chamber 7. Yes. In this example, the superheated steam supply pipe 18 is for heating the lower surface portion of the lower runway 6, and the superheated steam introduction pipe portion 24 of the superheated steam injection pipe 23 provided on the back side of the lower runway 6 in the lower runway heating chamber 8. Connected to.

  In this example, in order to prevent the surface portion of the hamburger or steak to be heated from burning onto the caterpillar steel plate 3 of the caterpillar conveyor device 2 during firing, the caterpillar steel plate 3 reaching the inlet side is provided. It is necessary to maintain the temperature at 200 ° C. or higher. Therefore, the superheated steam injection pipe 23 is formed so that the lower runway 6 of the caterpillar endless conveyor path 4 formed of the caterpillar steel plate 3 of the caterpillar conveyor apparatus 2 is heated by the superheated steam before reaching the inlet side. Is passed through the lower runway heating chamber 8. In the upper runway heating chamber 7, an upper runway upper surface heating region 25 is formed by superheated steam sprayed from the superheated steam jet pipe 19 provided on the upper runway 5 of the caterpillar endless conveyor path 4. The upper runway lower surface portion heating region 26 is formed by the superheated steam sprayed from the superheated steam spray pipe 21 provided on the back side of 5. In the upper runway upper surface heating region 25 of this example, the upper portion of the hamburger or steak to be heated conveyed by the upper runway 5 of the caterpillar endless conveyor path 4 of the caterpillar conveyor device 2 is the upper runway upper surface. Directly heated by the superheated steam sprayed from the superheated steam jet pipe 19 for partial heating, and the lower surface thereof is heated by the caterpillar steel plate 3 of the caterpillar conveyor device 2 heated to 200 ° C. or more, It is heated by superheated steam that flows between the caterpillar steel plates 3 before and after the caterpillar conveyor device 2 and flows between the caterpillar steel plates 3 and the underside of the hamburger steak or steak. In this way, the hamburger or steak of the object to be heated is fired on the caterpillar steel plate 3 of the caterpillar conveyor path 5, and the surface in contact with the caterpillar steel plate 3 is burnt. Further, in the upper runway lower surface heating region 26, the superheated steam sprayed from the superheated steam jet pipe 21 for heating the upper runway lower surface part heats the lower surface of the caterpillar steel plate 3 of the caterpillar conveyor path 4, and It spouts upward from the gap between the front and rear caterpillar steel plates 3 and flows between the caterpillar steel plate and the lower surface of the object to be heated to heat the hamburger steak or steak of the object to be heated.

  In this example, the superheated steam jet tube 19 for heating the upper surface of the upper runway is attached to the support column 28 of the superheated steam jet support device 27 so as to be able to reciprocate in the vertical direction. The distance of the superheated steam jet pipe 19 from the upper surface is provided so as to be adjustable, and the hamburger or steak of the heated article is adjusted by adjusting the interval between the hamburger or steak of the heated article and the superheated steam jet pipe 19. The heating temperature can be changed. In this example, the upper runway heating chamber 7 is formed with a plurality of regions from the entrance portion 29 to the exit portion 30 of the heating device 1, and a firing temperature is set in each region. The distance of the superheated steam spray pipe 19 from the caterpillar steel plate 3 of the caterpillar conveyor device 2 is set in accordance with the firing temperature of the region.

In this example, the superheated steam jet pipe 21 for heating the upper runway lower surface heating region 26 is provided at a certain distance from the upper runway lower surface, and heating the inlet side 31 of the lower runway heating chamber 8 is performed. The superheated steam spray pipe 23 for use is provided at a location away from the lower surface of the lower running path by a certain distance. However, in this example, the superheated steam jet pipe 23 for heating the lower runway is not provided in the lower runway heating chamber 8 of the entrance side 31 of the lower runway heating chamber 8.
In this example, the caterpillar endless conveyor path 4 of the caterpillar conveyor device 2 is formed by being supported by horizontally arranged guide rails 15 so that the firing temperature in each region can be accurately adjusted. The guide rails 15 are supported by the column 13 and the beam member 14, respectively.

  In this example, the upper runway heating chamber 7 is partitioned from the lower runway heating chamber 8 through the bottom wall portion 12. The bottom wall portion 32 of the upper runway lower surface portion heating area 26 is formed to be inclined toward the central portion 34 where the drain pipe 33 for draining that opens into the lower runway heating chamber 8 is provided. In this example, a drain discharge pipe 36 is provided in the bottom wall portion 35 of the lower runway heating chamber 8, and the drain in the upper runway heating chamber 7 is drained from the bottom wall portion 35 of the lower runway heating chamber 8. It is discharged from the pipe 36. In this example, the upper traveling path 5 of the caterpillar conveyor path 4 exiting from the outlet side 30 of the upper traveling path heating chamber 7 rotates around the drive sprocket 37 and moves to the lower traveling path 6 on the return path. When rotating around the drive sprocket 37 of the upper runway 5, the hamburger steak or steak to be heated automatically leaves the caterpillar conveyor path 4 and falls, so that it can be easily taken out.

  In this example, the caterpillar steel plate 3 of the caterpillar type conveyor device 2 that has rotated around the drive sprocket 37 and moved to the lower runway 6 is free from deposits such as oil and fat that have come out of the heated object during firing of the heated object. In order to remove, when the periphery of the drive sprocket 37 of the caterpillar type conveyor device 2 is rotated to the lower runway 6, it is passed through the cleaning region 38. In the cleaning region 38 of the caterpillar steel plate 3 of the lower runway 6, the cleaning water injection pipe 40 connected to the cleaning water supply pipe 39 injects the cleaning water toward the upper surface of the caterpillar steel plate 3 of the lower runway 6. The cleaning water jet pipe 41 for cleaning the lower surface portion of the caterpillar steel plate 3 of the lower runway 6 is directed toward the back surface of the steel plate 3 of the caterpillar 6 of the lower runway 6. The lower running path 4 is provided so that washing water can be jetted. A cleaning drainage discharge pipe 43 is provided on the bottom wall portion 42 of the cleaning region 38 so that the cleaning drainage is discharged.

  In this example, in order to prevent the surface portion of the hamburger or steak of the object to be heated from sticking to the caterpillar steel plate 3 of the top plate of the caterpillar type conveyor device, the upper surface and the lower surface are cleaned in the cleaning region 38. The cleaned caterpillar steel plate 3 of the lower runway 4 is introduced into the lower runway heating chamber 8 from the entrance 31 of the lower runway heating chamber 8 of the heating device 1. In this example, the caterpillar steel plate 3 of the lower runway 4 is introduced into the lower runway heating chamber 8 and is heated to a temperature of 200 ° C. or higher by superheated steam injected from the superheated steam jet pipe 23 for heating the lower runway. Heated. It is heated to a temperature of 200 ° C. or higher and sent from the lower track exit 44 of the lower track heating chamber 8. The caterpillar steel plate 3 delivered from the lower runway exit 44 of the lower runway heating chamber 8 rotates around the sprocket 45, moves to the upper runway 5 side, and is sent to the place 46 to be heated. The object to be heated is placed on the caterpillar steel plate 3 at the place 46 where the object to be heated is placed, introduced into the upper track heating chamber 7 of the heating device 1 from the entrance 29, and heated and fired in the heating device 1. The

  In this example, the superheated steam jet pipe 19 of the upper runway heating chamber 7 is attached to the column 28 of the superheated steam jet pipe support device 27 so as to reciprocate in the vertical direction. The injection pipe 21 is fixed by an arm member 48 attached to a superheated steam injection pipe support member 47 provided in the bottom wall portion 32 of the upper runway heating chamber 7 in the horizontal direction. Further, the superheated steam jet pipe 23 of the lower runway heating chamber 8 is fixed by an arm member 50 attached in a horizontal direction to the superheated steam jet pipe support member 49 provided on the bottom wall portion 35 of the lower runway heating chamber 8. Has been. In this example, the superheated steam spray pipe 21 and the superheated steam spray pipe 23 are provided at a certain distance from the back surface of the superheated steam spray pipe 23. In this example, A is a leg of the heating device 1, B is a cover provided on the outlet 30 side of the upper track heating chamber 7 of the heating device 1, and C is a prime mover such as a motor for driving the drive sprocket. It is. On the inlet side and the outlet side of the heating device 1, an overheated steam discharger and a mist collector having an outside air intake are provided.

  Since this example is configured as described above, the hamburger or steak of the object to be heated is placed on a clean caterpillar steel plate heated to a temperature of 200 ° C. or more at the place 46 to be heated. Is done. The caterpillar steel plate on which the hamburger or steak to be heated is placed is introduced into the upper runway heating chamber 7 of the caterpillar conveyor device 1 of the heating device 1 from the entrance 29 of the upper runway 5. In the upper runway heating chamber 7 of the heating device 1, the top surface portion of the hamburger or steak to be heated is supplied from the superheated steam supply pipe 16 for heating the upper runway upper surface portion and jetted from the superheated steam jet nozzle 19. Of the caterpillar type conveyor device heated by the superheated steam supplied from the superheated steam supply pipe 17 for heating the lower surface portion of the upper runway and heated from the superheated steam injection nozzle 21. While heated by the caterpillar steel plate 3 and burnt, the superheated steam jetted from the superheated steam jet nozzle 21 is ejected from the gap between the caterpillar steel plates 3 of the caterpillar conveyor device, and the lower surface of the object to be heated and the caterpillar The hamburger or steak of the object to be heated is fired without being baked on the caterpillar steel plate. .

  The hamburger or steak of the object to be heated thus heated is formed in the upper runway heating chamber 7 of the heating device 1 in the traveling direction of the upper runway of the caterpillar conveyor device, and the hamburger or steak is heated above the plural firing temperatures. While passing through the runway heating region, the surface of the caterpillar in contact with the steel plate is burnt and fired. The drain generated by condensation of superheated steam in the upper runway heating chamber 7 of the heating device 1 is discharged from the drain discharge pipe 33 of the upper runway heating chamber 7 into the lower runway heating chamber 8. The drain discharge pipe 36 is discharged outside the heating apparatus 1. The to-be-heated hamburger or steak baked in the upper runway heating chamber 7 is placed on the caterpillar steel plate from the outlet 30 of the upper runway heating chamber 7 and sent out. When applying the charred on both sides, the hamburger or steak of the object to be heated, which is charred on one side, is placed on the caterpillar steel plate 3 with the side to be charred facing down, and the upper runway heating chamber 7 again. And repeat the firing step.

  The caterpillar steel plate of the caterpillar conveyor device from which the hamburger or steak of the object to be heated that has been baked in the upper runway heating chamber 7 is removed, excluding deposits such as fat and oil coming out of the hamburger or steak of the object to be heated Then, for repeated use, it is rotated around the drive sprocket 37 and transferred to the lower runway 4 and passed through the cleaning region 38. The upper surface of the caterpillar steel plate 3 of the caterpillar type conveyor device that has entered the cleaning region 38 is cleaned by a cleaning water jet pipe 40 for cleaning the upper surface of the lower runway 6, and for cleaning the lower surface of the lower runway 6. The lower surface portion is cleaned by the cleaning water jet pipe 41. The caterpillar steel plate 3 cleaned by the washing water is introduced into the lower runway heating chamber 8 from the inlet 31 of the lower runway heating chamber 8, and is heated to 200 ° C. by superheated steam injected from the superheated steam jet pipe 23 for heating the lower runway. It is heated to the above temperature and sent out from the lower runway exit 44. The steel plate of the caterpillar sent from the lower runway exit 44 of the lower runway heating chamber 8 rotates around the sprocket 45 and moves to the upper runway 5 and is sent to the place 46 where the heated object is placed. A hamburger or steak is placed and introduced into the heating device 1 from the inlet 29, and the hamburger or steak of the object to be heated is baked in the heating device 1. In this example, the caterpillar steel plate of the caterpillar-type conveyor device is repeatedly used to bak hamburgers or steaks to be heated.

  The above example is an example which burns only the surface of one side of a to-be-heated hamburger or steak. However, when baking and baking the hamburger or steak on both sides of the object to be heated, the surface of the object to be heated is turned over and the unburned surface of the hamburger or steak is heated. It can be baked with scorching on both sides of the hamburger steak or steak. However, two hamburger or steak firing devices for the heated object shown above are arranged in series and connected between them by a joint conveyor, so that the hamburger or steak of the heated object is burnt on both sides. Can be fired.

  The example shown in FIG. 4 is an example in which the two caterpillar conveyor devices for baking the hamburger or steak of the object to be heated described in Example 1 are connected by a joint conveyor. The upper runway 53 of the first caterpillar conveyor path 52 of the first caterpillar conveyor device 51 rotates around the drive sprocket 54 and moves to the lower runway 55. The lower runway 58 of the second caterpillar conveyor path 57 of the second caterpillar conveyor device 56 rotates around the sprocket 59 and moves to the upper runway 60. In this example, a net-type joint conveyor device 61 is provided between the first and second caterpillar conveyor devices 51 and 56. The end 63 on the first caterpillar conveyor path 52 side of the joint conveyor device 61 is for transfer so that the hamburger of the material to be fired can easily transfer from the upper runway 53 of the first caterpillar conveyor path 52. The roller member 64 is provided. An end portion 65 on the second caterpillar conveyor path 57 side of the net-type joint conveyor device 61 is formed to be movable up and down, and the hamburger to be fired from the joint conveyor device 61 is the second caterpillar conveyor. The position is set to the height at which it falls on the road 57 and falls.

  Since the present example is configured as described above, the hamburger of the fired product of the upper runway 53 that has come out of the firing furnace of the first caterpillar type conveyor path 52 is guided by the transfer roller 64 to be a net-type joint. It moves to the conveyor device 61 and reverses in the process of falling from the end 65 of the joint conveyor path 62 on the second caterpillar conveyor device 56 side, and the second caterpillar conveyor channel 57 of the second caterpillar conveyor device 56 is reversed. The burner (not shown) of the second conveyor path is placed with the charred surface facing upward, and the calcined lower surface is burnt and is not charred. The baked hamburger that has been burnt and burnt on both sides is taken out from the second caterpillar conveyor path 60.

  In this example, as a means for transferring the hamburger of the fired product from the first caterpillar type conveyor path 52 to the joint conveyor path 62, a transfer roller 64 formed so as to be able to rise and descend is used as the first caterpillar. Between the conveyor conveyor path 52 and the joint conveyor path 62 adjacent to the end of each conveyor, but instead of a single roller configured to be vertically movable, i.e. ascending and descending. A sliding plate member or a plurality of roller members formed so as to be movable in the vertical direction may be provided. Further, the joint conveyor device 61 can be provided without providing a roller movable in the vertical direction.

In this case, the splicing conveyor device 61 has one end adjacent to the end of the first caterpillar conveyor path 52 and is movable in the vertical direction, and the other end is set to the second end. In the upper part of the caterpillar type conveyor path 57, the hamburger of the object to be fired is positioned so as to be reversible and movable in the vertical direction. From one caterpillar-type conveyor path 52 to the joint conveyor device 61 automatically, and from the joint conveyor device 61 to the second caterpillar-type conveyor path 57, the hamburger of the object to be fired is inverted and automatically loaded. Can be moved.

Example 2
Using the heating device 1 shown in FIGS. 1 to 3, hamburgers of unfired hamburgers were heated and fired. In this example, three hamburgers to be fired are placed side by side on the upper runway 5 at the hamburger place 46 of the fired object on the entrance 29 side of the upper runway 5 of the caterpillar conveyor device 2 and heated. It was sent into the upper track heating chamber 7 of the apparatus 1. In the upper runway heating chamber 7, in order to efficiently heat the hamburger to be fired, a first heating region is formed on the entrance side in the traveling direction, and a second heating region is formed on the exit side. The hamburger to-be-fired was heat-treated by the two heating regions. In the first heating region, the distance between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set to 45 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The distance between each jet port and the back surface of the caterpillar steel plate is set equal to 45 mm, and in the second heating region, the distance between each jet port of the upper runway upper surface superheated steam jet pipe 19 and the surface of the hamburger to be fired Were equally set to 45 mm, and the distance between each injection port of the lower surface superheated steam injection pipe 21 and the back surface of the caterpillar steel plate was set to 45 mm equally. In any heating region in the upper runway heating chamber 7, superheated steam at a temperature of 400 ° C. was jetted from the superheated steam jet pipes 19 and 21 at a jet speed of 10 m / sec, and the hamburger was fired. . In this example, the firing time of the hamburger to be fired through the first and second heating regions of the upper runway heating chamber 7 was 1 minute 15 seconds. The surface temperature of the hamburger of the object to be fired in the firing process of the hamburger of the object to be fired is 375 ° C. in the first heating region and 375 ° C. in the second heating region. Was 375 ° C. in the first heating zone and 375 ° C. in the second heating zone. The surface temperature at the entrance 18 of the upper runway heating chamber 7 of the caterpillar steel plate of the caterpillar conveyor device is 220 to 230 ° C, and the surface temperature and the back surface temperature of the caterpillar steel plate at the exit 19 are both 250 to 260 ° C. there were. In this example, the baked hamburger to be fired hardly baked on the steel plate of the caterpillar, and the product yield was 88%.

Example 3
The heating apparatus 1 shown in FIGS. 1 to 3 was used to perform heating and baking by turning over the hamburger of the object to be fired and burnt on one side. In this example, two hamburgers to be fired are placed side by side on the upper runway 5 at the hamburger place place 46 of the fired material on the entrance 29 side of the upper runway 5 of the conveyor device 2. It was sent into the upper runway heating chamber 7. In the upper runway heating chamber 7, in order to efficiently heat the hamburger to be fired, a first heating region is formed on the entrance side in the traveling direction, and a second heating region is formed on the exit side. The hamburger to-be-fired was heat-treated by the two heating regions. In the first heating region, the distance between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set equal to 60 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The distance between each jet port and the back surface of the caterpillar steel plate is set equal to 60 mm, and in the second heating region, the distance between each jet port of the superheated steam jet pipe 19 on the upper surface of the upper runway and the surface of the hamburger to be fired Were equally set to 50 mm, and the distance between each injection port of the upper runway lower surface superheated steam injection pipe 21 and the back surface of the steel plate of the caterpillar was equally set to 50 mm. In any heating region in the upper runway heating chamber 7, superheated steam at a temperature of 350 ° C. was jetted from the superheated steam jet pipes 19 and 21 at a jetting speed of 10 m / sec, and the hamburger was fired. . In this example, the firing time of the hamburger to be fired through the first and second heating zones of the upper running path heating chamber 7 of the caterpillar conveyor path 4 was 2 minutes 30 seconds. The heating of the lower surface portion of the upper runway 5 can be set slightly longer in order to scorch the hamburger of the object to be fired by the high temperature finishing of the steel plate 3 of the caterpillar. The surface temperature of the hamburger of the fired product during the firing process of the hamburger of the fired product was 325 ° C. in the first heating region and 340 ° C. in the second heating region. The surface temperature at the entrance 29 of the upper runway heating chamber 7 of the caterpillar steel plate of the caterpillar conveyor device was 167 ° C., and the surface temperature and the back surface temperature of the caterpillar steel plate at the exit 30 were both 209 ° C. In this example, the baked hamburger to be fired hardly baked on the steel plate of the caterpillar, and the product yield was 75%.

Example 4
Using the heating apparatus 1 shown in FIGS. 1 to 4, hamburgers of unfired hamburgers were heated and fired. In this example, (a) 323 grams and (b) at the hamburger place 46 of the object to be fired on the entrance 29 side of the upper runway heating chamber 7 of the caterpillar conveyor path 52 of the first caterpillar conveyor apparatus 51. Two 327-gram hamburgers to be fired were placed side by side on the first caterpillar conveyor path 52 and sent into the upper track heating chamber 7 of the heating device 1 of the first caterpillar conveyor path 52. In the upper runway heating chamber 7, in order to efficiently perform the heat treatment of the hamburger to be fired, a first heating area is formed on the entrance side, and a second heating area is formed on the exit side. The hamburger to be fired was heated by the heating region. In the first heating region, the interval between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set to 120 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The distance between each injection port and the back surface of the steel plate 3 of the caterpillar is set to be equal to 120 mm, and in the second heating area, each injection port of the superheated steam injection pipe 19 on the upper surface of the upper runway and the surface of the hamburger to be fired The distance between the nozzles of the upper runway lower surface superheated steam spray pipe 21 and the back surface of the steel plate 3 of the caterpillar was equally set to 120 mm. In any heating region in the upper runway heating chamber 7, superheated steam at a temperature of 400 ° C. was jetted from the superheated steam jet tube at a jetting speed of 10 m / sec to perform baked hamburger on the baked article. The surface heating temperature of the hamburger to be fired in the first caterpillar type conveyor path 53 of the first conveyor device 52 is 360 ° C. in the first heating region, and the surface of the caterpillar steel plate 3 on the supply side of the fired material. The temperature was 220-240 ° C. In the second heating region, the surface heating temperature of the hamburger to be fired was 356 ° C., and the surface temperature of the caterpillar steel plate 3 on the outlet side was 250 to 260 ° C. In this example, the firing time of the hamburger to be fired through the first and second heating regions of the upper runway heating chamber 7 of the first caterpillar conveyor path 52 of the first caterpillar conveyor device 51 is 2 minutes. there were.
The baked object to be fired was turned over and the second firing process was performed. In the second baking process, the upper runway heating chamber of the first caterpillar conveyor path 52 is on the entrance 29 side of the upper runway heating chamber 7 of the second caterpillar conveyor path 57 of the second caterpillar conveyor device 56. 7, the burned hamburger burned on one side is inverted and placed, and is fed from the entrance 29 of the upper runway heating chamber 7 into the upper runway heating chamber 7 of the heating device 1 of the second conveyor device 56. It was. In the upper runway heating chamber 7, in order to efficiently perform the heat treatment of the hamburger to be fired, a first heating area is formed on the entrance side, and a second heating area is formed on the exit side. The hamburger to be fired was heated by the heating region. In the first heating region, the interval between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set to 120 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The interval between the respective injection ports and the back surface of the steel plate of the caterpillar is set to be equal to 120 mm, and in the second heating region, the distance between the respective injection ports of the upper runway upper surface superheated steam injection tube 19 and the surface of the hamburger to be fired Was equally set to 120 mm, and the distance between each injection port of the upper runway lower surface superheated steam injection pipe 21 and the back surface of the steel plate of the caterpillar was set to 120 mm equally. In any heating region in the upper runway heating chamber 7, superheated steam having a temperature of 400 ° C. was jetted from the superheated steam jet tube 10 at a jetting speed of 10 m / sec, and the hamburger firing process was performed. In this example, in the first heating region of the second conveyor path 57, the surface heating temperature of the hamburger to be fired was 360 ° C, and the temperature of the steel plate surface of the conveyor on the supply side was 220 to 240 ° C. . In the second heating region, the surface heating temperature of the hamburger to be fired was 356 ° C., and the temperature of the steel plate surface of the conveyor on the outlet side was 250 to 260 ° C. In this example, the firing time of the hamburger to be fired through the first and second heating zones of the upper runway heating chamber 7 of the second caterpillar conveyor path 57 of the second caterpillar conveyor device 56 is 2 minutes. there were. Moreover, in this example, the weight of the hamburger of the fired product after firing is (a) 245 grams and (b) 253 grams, respectively, and the fired hamburger of the fired product is baked onto the steel plate of the caterpillar. The product yield was 75.8-77.3 percent.

Example 5
Using the heating apparatus 1 shown in FIGS. 1 to 4, hamburgers of unfired hamburgers were heated and fired. In this example, (c) 156 grams and (d) at the hamburger loading place 46 of the object to be fired on the inlet 29 side of the heating device 1 of the first caterpillar conveyor path 52 of the first caterpillar conveyor device 51. ) Two 163 grams of baked hamburgers were placed side by side on the upper runway 53 of the first conveyor path 52 and sent into the upper runway heating chamber 7 of the heating device 1. In the upper runway heating chamber 7, in order to efficiently perform the heat treatment of the hamburger to be fired, a first heating area is formed on the entrance side, and a second heating area is formed on the exit side. The hamburger to be fired was heated by the heating region. In the first heating region, the distance between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set to 100 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The intervals between the respective injection ports and the back surface of the caterpillar steel plate 3 are set equal to 100 mm, and in the second heating region, the respective injection ports of the upper runway upper surface superheated steam injection tube 19 and the surface of the hamburger to be fired The interval between the nozzles of the upper runway lower surface superheated steam injection pipe 21 and the back surface of the steel plate 3 of the caterpillar was equally set to 100 mm. In any heating region in the upper runway heating chamber 7, superheated steam having a temperature of 400 ° C. was jetted from the superheated steam jet tube 10 at a jetting speed of 10 m / sec, and the hamburger firing process was performed. In this example, the firing time of the hamburger of the material to be fired in the first heating area and the second heating area of the upper runway heating chamber 7 of the first conveyor path 52 of the first conveyor device 51 is 2 minutes. there were. The surface heating temperature of the hamburger of the object to be fired in the first conveyor path 52 of the first conveyor device 51 is 360 ° C., and the surface heating temperature of the hamburger of the object to be fired is 360 ° C. The surface temperature of the steel plate 3 of the conveyor on the supply side was 220 to 240 ° C. In the second heating region, the surface heating temperature of the hamburger to be fired was 356 ° C., and the surface temperature of the steel plate 3 of the outlet side conveyor was 250 to 260 ° C.
The baked object to be fired was turned over and the second firing process was performed. In the second baking process, a scorch is formed on one side of the heating device 1 of the first caterpillar conveyor path 52 at the entrance 29 side of the upper runway heating chamber 7 of the second conveyor path 57 of the second conveyor apparatus 56. The attached baked hamburger was put upside down and sent into the upper runway heating chamber 7 of the second caterpillar conveyor device 56. In the upper runway heating chamber 7, in order to efficiently perform the heat treatment of the hamburger to be fired, a first heating area is formed on the entrance side, and a second heating area is formed on the exit side. The hamburger to be fired was heated by the heating region. In the first heating region, the distance between each jet port of the upper runway upper surface portion superheated steam jet pipe 19 and the surface of the hamburger of the object to be fired is set to 100 mm, and the upper runway lower surface portion superheated steam jet pipe 21 The intervals between the respective injection ports and the back surface of the caterpillar steel plate 3 are set equal to 100 mm, and in the second heating region, the respective injection ports of the upper runway upper surface superheated steam injection tube 19 and the surface of the hamburger to be fired The distance between the nozzles of the upper running path lower surface superheated steam spray pipe 21 and the back surface of the caterpillar steel plate was equally set to 100 mm. In any heating region in the upper runway heating chamber 7, superheated steam having a temperature of 400 ° C. was jetted from the superheated steam jet pipe 10 at a jetting speed of 10 m / sec, and a hamburger firing process was performed. In this example, the firing time of the hamburger of the object to be fired in the upper surface heating region 16 and the upper surface heating region 17 of the upper runway heating chamber 7 of the second conveyor path 57 of the second conveyor device 56 is 2 minutes. 45 seconds. The surface heating temperature of the hamburger of the object to be fired in the second conveyor path 57 of the second conveyor device 56 is 360 ° C. in the first heating region, and the surface heating temperature of the hamburger of the object to be fired is the conveyor on the supply side. The steel plate surface temperature was 220-240 ° C. In the second heating region, the surface heating temperature of the hamburger to be fired was 356 ° C., and the temperature of the steel plate surface of the conveyor on the outlet side was 250 to 260 ° C. In this example, the weight of the hamburger of the fired article after firing is (c) 119 grams and (d) 120 grams, and the fired hamburger of the fired article is less likely to seize on the steel plate of the caterpillar, The product yield was 73.6-76.3 percent.

  In the present invention, a heated object is placed on a plurality of strip-shaped metal plates that are heated to a temperature of 170 ° C. or higher, preferably 200 ° C. or higher with superheated steam of 170 ° C. or higher, and whose long sides are arranged at intervals. 170 ° C. or higher, preferably 200 ° C. or higher, the superheated steam at a temperature of 170 ° C. or higher sprayed on the object to be heated from above, and a gap 170 between the metal plates. Since the object to be heated is baked to a temperature of 170 ° C. or more with superheated steam having a temperature of ℃ or higher, the material to be baked on the metal plate as compared with the conventional method and apparatus for heating the baked material The firing object can be fired without burning the firing object to the metal plate while maintaining the cleanness of the firing object safely and in a short time. Fired product It is possible to improve the uniformity and yield quality.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general | schematic front sectional drawing for demonstrating the outline | summary about the heating apparatus by the superheated steam of one Example of this invention. FIG. 2 is a partial side cross-sectional view of the schematic inlet side of the heating apparatus using superheated steam of the embodiment shown in FIG. FIG. 2 is a partial side sectional view of the schematic outlet side of the heating apparatus using superheated steam according to the embodiment shown in FIG. FIG. 4 is a schematic explanatory diagram for explaining an outline of an embodiment of a splicing conveyor connecting the heating device using superheated steam according to the embodiment shown in FIGS. 1 to 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating apparatus 2 Caterpillar type conveyor apparatus 3 Caterpillar steel plate 4 Endless conveyor path 5 Upper runway 6 Lower runway 7 Upper runway heating chamber 8 Lower runway heating chamber 9 Link plate 10 Attachment 11 Chain roller 12 Bottom wall part of upper runway heating chamber 7 13 Column 14 Beam member 15 Guide plates 16, 17 and 18 Superheated steam supply pipes 19, 21 and 23 Superheated steam injection pipes 20, 22 and 24 Superheated steam introduction pipe section 25 Upper runway upper surface heating area 26 Upper runway lower face heating area 27 Superheated steam jet tube support device 28 Strut 29 of superheated steam jet tube support device 27 Entrance portion 30 of heating device 1 Exit portion 31 of heating device 1 Entrance side of lower runway heating chamber 8 Bottom of upper runway lower surface portion heating region 26 Wall portion 33 Drain discharge discharge tube 34 Central portion 35 Bottom wall portion of lower runway heating chamber 8 Drain discharge tube 37 54 Drive sprocket 38 Washing area 39 Washing water supply pipes 40, 41 Washing water injection pipe 42 Bottom wall 43 of washing area 38 Washing water discharge pipe 44 Lower runway exit 45 of lower runway heating chamber 8 Sprocket 46 Placement of object to be heated Place 47, 49 Superheated steam spray pipe support member 48, 50 Arm member 51 First caterpillar conveyor device 52 First caterpillar conveyor path 53 of first caterpillar conveyor device 51 Above first caterpillar conveyor path 52 Runway 55 Lower runway 56 of the first caterpillar conveyor path 52 Second caterpillar conveyor device 57 Second caterpillar conveyor path 58 of the second caterpillar conveyor device 56 Lower runway 59 of the second caterpillar conveyor path 57 Sprocket 60 Upper runway 61 Joint conveyor device 62 Conveyor route 63 of joint conveyor device 61 Joint conveyor Second caterpillar conveyor path 52 side of the end portion of the conveyor path of the roller member 65 splicing conveyor 61 for Noriutsuri end 64 of the first caterpillar conveyor path 52 side of the conveyor path of the Ya 61

Claims (18)

It is heated to a temperature of 170 ° C. or higher by superheated steam of 170 ° C. or higher, and an object to be heated is placed on a plurality of strip-shaped metal plates arranged with a gap between the long sides, and heated to a temperature of 170 ° C. or higher. The heated object is heated to 170 ° C. by the above metal plate, superheated steam having a temperature of 170 ° C. or higher sprayed on the heated object from above, and superheated steam having a temperature of 170 ° C. or higher ejected from the gap between the metal plates. A method of heating an object to be heated with superheated steam, characterized by firing at the above temperature. Heated to a temperature of 170 ° C. or higher by superheated steam having a temperature of 170 ° C. or higher, and places the object to be heated on a plurality of rectangular metal plates arranged at intervals on their long sides, and moves the plurality of metal plates The superheated steam having a temperature of 170 ° C. or higher is sprayed on the heated object from above, and the superheated steam having a temperature of 170 ° C. or higher is ejected from the gap between the metal plates to bring the heated object to a temperature of 170 ° C. or higher. A method for heating an object to be heated with superheated steam, wherein the object to be heated is released from the metal plate after being fired and after being fired. Heated to a temperature of 170 ° C. or higher by superheated steam at a temperature of 170 ° C. or higher, and placed on a plurality of rectangular metal plates adjacent to each other at intervals on their long sides, the plurality of metal plates While being moved, the superheated steam having a temperature of 170 ° C. or higher is sprayed on the heated object from above, and the superheated steam having a temperature of 170 ° C. or higher is jetted from the gap between the metal plates to bring the heated article to a temperature of 170 ° C. or higher. After firing, the metal object is inverted, and the object to be heated is turned upside down, positioned below it, and arranged in parallel at intervals on the long side of each other. The superheated steam having a temperature of 170 ° C. or higher is sprayed on the object to be heated from above while the plurality of metal plates are moved, and the superheated steam having a temperature of 170 ° C. or higher is ejected from the gap between the metal plates. 1 heated item Heating method with superheated steam of the heated product and firing the 0 ℃ or higher. The superheated steam having a temperature of 170 ° C. or more coming out from the gap between the metal plates flows between the heated metal plate and the object to be heated to heat the object to be heated. The heating method of the to-be-heated material as described in any one of the above by superheated steam. The method for heating an object to be heated by superheated steam according to any one of claims 1 to 4, wherein the temperature of the superheated steam is 200 ° C or higher. 5. The method of heating an object to be heated by superheated steam according to any one of claims 1 to 4, wherein the width of the rectangular metal plate is ½ or less of the size of the object to be heated. . In the heating chamber, a plurality of rectangular metal plates adjacent to each other on the long side thereof are provided, and a plurality of rectangular metal plates are provided above the metal plate with a nozzle opening facing the upper surface of the metal plate. The metal plate upper surface portion heating region provided with the superheated steam spray nozzle and the metal plate lower surface portion heating region provided with a plurality of superheated steam spray nozzles facing the nozzle opening toward the lower surface of the metal plate. The food heating apparatus characterized by the above-mentioned. A plurality of superheated steam spray nozzles provided in the metal plate upper surface heating region, the metal plate lower surface heating region, or the metal plate upper surface heating region and the metal plate lower surface heating region can move up and down with respect to the metal plate, respectively. The food heating device according to claim 7, wherein the food heating device is provided on the food heating device. The plurality of superheated steam spray nozzles provided in the metal plate upper surface heating region, the metal plate lower surface heating region, the metal plate upper surface heating region, and the metal plate lower surface heating region are supported by a rack that engages with a gear. The food heating apparatus according to claim 7, wherein the food heating apparatus can move up and down with respect to the metal plate. An upper runway of an endless conveyor apparatus is provided in the heating chamber, and each of the conveyors includes a plurality of rectangular metal plates arranged in parallel at intervals on the long side, and the heating chamber Is provided above the upper runway of the conveyor, and an upper runway upper surface heating area in which a plurality of superheated steam spray nozzles are provided with the nozzle opening facing the upper surface of the upper runway, and below the upper runway A food heating apparatus, comprising: an upper runway lower surface heating region provided with a plurality of superheated steam spray nozzles with a nozzle opening facing the lower surface of the upper runway. The heating device includes: an endless conveyor device in which a plurality of rectangular metal plates are arranged side by side on the long side, an upper runway of the endless conveyor device, and an upper runway of the conveyor An upper runway heating chamber of an endless conveyor device provided with a superheated steam spray nozzle, a lower runway of the endless conveyor device provided below the upper runway heating chamber, and an overheat to the lower runway of the conveyor A lower runway heating chamber of an endless conveyor device having a water vapor spray nozzle, and the upper runway heating device of the conveyor device is provided above the upper runway of the conveyor device, and is an upper surface of the upper runway An upper runway upper surface heating region provided with a plurality of superheated steam spray nozzles facing the nozzle opening, and a lower surface of the upper runway provided on the lower surface of the upper runway The upper runway lower surface heating region having a plurality of superheated steam spray nozzles facing the opening, and the lower runway heating chamber of the conveyor device is provided below the lower runway of the conveyor, and the lower runway A food heating apparatus comprising: a plurality of superheated steam spray nozzles facing a nozzle opening toward a lower surface of the tub, and a lower runway heating region is formed. A plurality of superheated steam spray nozzles provided in the upper runway upper surface heating area, the upper runway lower surface heating area, or the upper runway upper surface heating area and the upper runway lower surface heating area are respectively disposed above the upper runway. The food heating apparatus according to claim 10 or 11, wherein the food heating apparatus is provided so as to be movable up and down with respect to the runway. In the upper runway upper surface heating chamber and / or the upper runway lower surface heating chamber, a plurality of regions are formed in the traveling direction of the conveyor, and in each region, a plurality of superheated steam spray nozzles are provided on the object to be heated. The food heating device according to any one of claims 10 to 12, wherein the food heating device is supported so as to be movable up and down. 12. The food according to claim 11, wherein the plurality of superheated steam spray nozzles provided in the lower runway heating chamber are provided below the lower runway so as to be vertically movable with respect to the lower runway. Heating device. A plurality of regions are formed in the lower track heating chamber, and a plurality of superheated steam spray nozzles are supported so as to be vertically movable with respect to an object to be heated in each region. The food heating apparatus according to 11 or 14. A plurality of superheated steam spray nozzles provided in the upper runway upper surface heating chamber, upper runway lower surface heating chamber, upper runway upper surface heating chamber, and upper runway lower surface heating chamber are supported by a rack that engages with a gear. The food heating device according to any one of claims 10 to 13, wherein the food heating device can move up and down with respect to the upper runway. The plurality of superheated steam spray nozzles provided in the lower runway heating chamber are supported by a rack that engages with a gear and are movable up and down with respect to the lower runway. The food heating apparatus as described. The food heating apparatus according to any one of claims 10 to 17, wherein the superheated steam spray nozzle is a tubular or box-shaped superheated steam chamber provided with a plurality of openings.

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