JP2016202289A - Continuous rice cooking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuous rice cooking device capable of cooking rice in an optimum state.SOLUTION: A continuous rice cooking device includes conveyance means 25 for transferring a rice cooking pot 2 in a conveyance direction. A plurality of burner means 41 located aligned in the conveyance direction of the conveyance means 25 are arranged below a transfer region 30 of the rice cooking pot 2. Fire power adjusting means 42 for adjusting fire power of the corresponding burner means 41 is provided in correspondence with each burner means 41. Control means 60 controls each of the fire power adjusting means 42 individually so that a temporal change in the temperature in the pot indicates an optimum temperature curve suitable for a type of rice.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a continuous rice cooking apparatus that performs continuous rice cooking.

  Conventionally, for example, a continuous rice cooker (automatic rice cooker) described in Patent Document 1 below is known.

  This continuous rice cooker includes a conveying means for moving the rice cooker in the conveying direction, and a plurality of, for example, 13 burner means (gas burners) disposed below the moving area of the rice cooker and arranged side by side in the conveying direction. It has.

  Further, in this continuous rice cooker, the three burner means on the inlet side of the kettle are in the temperature rising zone, the next three burner means are in the boiling zone, the four burner means in succession are in the watering zone, and the outlet side 3 Each burner means constitutes a baking area.

  One mixed gas supply main pipe is arranged in each of the four sections, and a combustion amount adjusting device for adjusting the supply / combustion amount of the mixed gas is interposed in each mixed gas supply main pipe. ing.

JP-A-9-168480

  However, in the conventional continuous rice cooking apparatus, fine heating power adjustment cannot be performed, so that it may not be possible to cook the optimum rice as desired.

  That is, for example, when the thermal power of the burner means for each of the four areas is as shown in FIG. 10 (a), the time change of the temperature in the rice cooker (hereinafter referred to as “temperature in the pot”) is: The standard temperature curve α shown in FIG. 10B is obtained, and the cooked rice (gomoku rice) is burnt in the temperature curve α.

  Therefore, for example, as shown by a dotted line in FIG. 10 (a), when the heating power of the three burner means in the temperature rising zone is weakened, the time variation of the temperature in the kettle becomes a temperature curve β shown in FIG. 10 (b). .

  However, in this temperature curve β, the temperature in the pot is too low and the heating is insufficient, and the core may remain in the cooked rice.

  In this way, the conventional continuous rice cooker can only adjust the heating power collectively for each area, so fine heating power adjustment according to the type of rice (item) is not possible. As a result, depending on the type of rice, it is optimal There are times when it is not possible to cook the rice.

  This invention is made | formed in view of such a point, and it aims at providing the continuous rice cooking apparatus which can be cooked to the optimal rice.

  The continuous rice cooker according to claim 1 includes a conveying means for moving the rice cooker in the conveying direction, a plurality of burner means arranged below the moving area of the rice cooker and arranged side by side in the conveying direction, Thermal power adjusting means that is provided corresponding to each burner means and adjusts the thermal power of the corresponding burner means, and the optimal temperature curve suitable for the type of rice in which the time change of the temperature in the rice cooker is cooked in the rice cooker As such, it comprises control means for individually controlling each of the heating power adjusting means.

  The continuous rice cooker according to claim 2 is the continuous rice cooker according to claim 1, wherein each heating power adjusting means is configured to provide a blower for pumping air and a flow rate of fuel gas mixed with the air pumped by the blower. And a control means for controlling the blower based on the detection of the flow sensor.

  The continuous rice cooker according to claim 3 is the continuous rice cooker according to claim 1 or 2, wherein the control means is a case where the conveying means is tact conveying and the rice cooking pots are tact conveyed by a plurality of times. Each heating power adjusting means is individually controlled so that the time change of the temperature in the rice cooker that is carrying the tact is an optimum temperature curve.

  The continuous rice cooker according to claim 4 is the continuous rice cooker according to any one of claims 1 to 3, wherein each burner means burns a mixed gas of fuel gas and air to heat the rice cooker. It has a surface combustion member.

  According to the present invention, since the heating power can be finely adjusted by the control of the heating power adjusting means by the control means, it is possible to cook the optimum rice.

It is side view sectional drawing of the heating chamber of the continuous rice cooking apparatus which concerns on one embodiment of this invention. It is side view sectional drawing of the principal part of a continuous rice cooker same as the above. It is front view sectional drawing of the principal part of a continuous rice cooker same as the above. It is a top view schematic diagram of the heating means of a continuous rice cooker same as the above. It is the whole continuous rice cooker side view same as the above. It is the whole top view of a continuous rice cooker same as the above. It is a schematic block diagram of a continuous rice cooker same as the above. (A) is a graph which shows the thermal power of the burner means of a continuous rice cooker same as the above, (b) is a graph which shows the temperature in a pot. It is side surface sectional drawing of the heating chamber of the continuous rice cooker which concerns on other embodiment of this invention. (A) is a graph which shows the thermal power of the burner means of the conventional continuous rice cooker, (b) is a graph which shows the temperature in a pot.

  An embodiment of the present invention will be described with reference to FIGS.

  1 in the figure is a continuous rice cooker, and this continuous rice cooker 1 is a commercial rice cooker (automatic rice cooker) that automatically heats a plurality of rice cookers 2 while moving them and automatically cooks them.

  That is, this continuous rice cooking apparatus 1 performs continuous rice cooking by heating a plurality of rice cooking pots 2 in the state of being in contact with each other while being moved in the conveying direction. 1 will be described as the front-rear direction and the arrow direction shown in FIG. 3 as the left-right direction.

  The rice cooking pot 2 includes a rectangular parallelepiped box-shaped hook body 5 having an upper surface opening 4 and a lid body 6 that covers the upper surface opening 4 of the pot body 5 so as to be opened and closed.

  The hook body 5 includes a rectangular plate-shaped bottom plate portion 7, a side plate portion 8 erected on the peripheral end portion of the bottom plate portion 7, and an eaves protruding outward from the upper end portion of the side plate portion 8. Part 9.

  The lid body 6 has a plate-like lid body portion 11 that covers the upper surface opening 4 of the hook body 5 so as to be openable and closable, and a handle portion 12 erected at the center of the lid body portion 11. In FIGS. 1 and 2, the lid 6 is not shown.

  The continuous rice cooker 1 is an apparatus in which a longitudinal heating chamber 16 (longitudinal in the conveying direction) through which the rice cooker 2 passes is formed in the inner lower portion and a steaming chamber 17 through which the rice cooker 2 passes is formed in the upper upper portion. A main body 15 is provided.

  The front surface of the heating chamber 16 is a heating chamber inlet portion (pot inlet portion) 18 of the rice cooker 2, and the rear surface of the heating chamber 16 is a heating chamber outlet portion (pot outlet portion) 19 of the rice cooker 2. Yes. The rice cooker 2 that has come out of the heating chamber outlet 19 passes through the steaming chamber 17 and is then discharged out of the apparatus main body 15 from the steaming chamber outlet (pot final outlet) 20 (see FIG. 5).

  The upper surface of the heating chamber 16 is covered with a plurality of pairs of left and right cover lids 21 so as to be opened and closed. The left and right side surfaces of the heating chamber 16 are covered with heat insulating side plates 23 which are vertical plate-like side walls. An exhaust fan 24 is provided on the ceiling of the apparatus body 15.

  Moreover, the continuous rice cooker 1 moves intermittently (it may be continuous) in the conveyance direction (front) along the tunnel-shaped heating chamber 16 in the state where the rice cookers 2 adjacent to each other in front and back contact each other. Conveying means (chain conveyor) 25 is provided.

  The conveyance means 25 has a chain 26 that is a pair of left and right endless conveyance bodies that support the bowl 9 of the rice cooker 2 from below. The chain 26 is looped around a plurality of sprockets 27 and rotates in a predetermined direction with the power from the motor 28 that is a driving means. As shown in FIG. 5, the continuous rice cooker 1 includes a transport conveyor 29 that transports the rice cooker 2 along the steaming chamber 17.

  Further, the continuous rice cooker 1 is a surface combustion burner type heating that heats the rice cooker 2 disposed below the moving region 30 (a part of the heating chamber 16) 30 of the rice cooker 2 so as to cover the lower surface of the heating chamber 16. A plurality of means 31 and a plurality of heating means 31 which are fixedly provided so as to protrude upward and are arranged in the transport direction at equal intervals (for example, an interval H shown in FIG. 2). The upper protrusion 32 is provided.

  Each of the upper protrusions 32 is formed only by a plate-like (for example, a single plate-like) heat insulating member (projection plate) 33 having a rectangular shape along a horizontal plane having a longitudinal direction in a direction orthogonal to the conveying direction in plan view, for example. It is configured. The heat insulating member 33 is placed and provided on the upper surface of the heating means 31, and is fixed between the left and right heat insulating side plates 23.

  The continuous rice cooker 1 has a U-shaped cross section (including a substantially U-shape) that faces and separates from one rice cooker 2 before being heated (starting rice cooking) by the heating means 31 via a gap 34. A groove-shaped inlet side member 36 is provided.

  The inlet side member 36 is disposed in the heating chamber 16 at a position in the vicinity of the heating chamber inlet portion 18 (pre-heating standby position). The inlet-side member 36 has a horizontal bottom surface portion 36a and vertical surface-side surface portions 36b erected at both left and right ends of the bottom surface portion 36a.

  The bottom surface portion 36a of the inlet side member 36 is below the upper surface of the upper protrusion portion (the upper protrusion portion 32a located at the inlet side end portion of the heating means 31) 32 adjacent to the bottom surface portion 36a of the inlet side member 36. Is located. Note that the upper protrusions at both ends of the heating means 31 (the upper protrusion 32a located at the inlet side end of the heating means 31 and the upper protrusion 32b located at the outlet side end of the heating means 31) are in the conveying direction. Is approximately half the size of the remaining upper projection 32c at the other intermediate position.

  Here, the heating means 31 is disposed below the moving region 30 of the rice cooker 2 and is arranged side by side in the state of being close to each other in the transport direction of the transport means 25, and a plurality of the same configuration for heating the rice cooker 2, That is, for example, it is composed of 12 burner means 41 which are gas burner means of the surface combustion burner type.

  A thermal power adjusting means 42 for adjusting the thermal power of the corresponding burner means 41 is provided for each burner means 41. That is, the continuous rice cooker 1 has a plurality of, for example, 12 (the same number as the burner means 41) having the same configuration for supplying a desired amount of mixed gas (mixed gas of fuel gas and air) to the corresponding burner means 41. Thermal power adjusting means 42 is provided.

  Each burner means (heating unit) 41 is of a surface combustion burner type such as a metal knit (registered trademark) gas burner made of heat-resistant metal fiber that heats the rice cooker 2 using hot air generated by the combustion of the mixed gas. And secondary air is not required.

  Each burner means 41 includes a main body 45 that is a hollow combustion member support that faces the bottom plate portion 7 of the rice cooker 2 and is spaced from and opposed to the upper surface portion of the main body 45 at substantially the entire upper surface portion. It has a plurality of substantially cylindrical surface combustion members (burners) 46 which are provided so as to be distributed and burn the mixed gas at the upper surface portion to heat the rice cooker 2.

  The upper surface portion of the main body 45 is constituted by a rectangular heat insulating bottom plate 48 having a plurality of holes 47, and the surface combustion member 46 is fitted in each hole 47 of the heat insulating bottom plate 48. The upper surface of the heat insulating bottom plate 48 and the upper surface of the surface combustion member 46 are substantially the same. A thermal power adjusting means 42 is connected to the lower part of the main body 45.

  The surface combustion member 46 has a circular combustion surface portion 46a on its upper surface portion, and this combustion surface portion 46a is made of refractory metal fibers knitted, and becomes a heating surface portion by combustion of the mixed gas.

  Further, there is a gap 55 between both burner means 41 adjacent to each other in the conveying direction of the conveying means 25, and the upper surface of the gap 55 is covered with a heat insulating member 33 that constitutes the upward projecting portion 32. In other words, the upper projecting portion 32c is provided between the end portions of the upper surface of the heat insulating bottom plate 48 of both the front and rear burner means 41 adjacent to each other.

  Note that the upper projecting portion 32a at one end is provided at the end portion on the heating chamber inlet portion 18 side (inlet side member 36 side) on the upper surface of the heat insulating bottom plate 48 of the burner means 41 closest to the heating chamber inlet portion 18. . The upper protruding portion 32b at the other end is provided at an end portion on the heating chamber outlet portion 19 side on the upper surface of the heat insulating bottom plate 48 of the burner means 41 closest to the heating chamber outlet portion 19.

  Further, an ignition means (ignition plug) 57 and a flame detection means (frame rod) 58 are disposed in the space 56 between the upper projecting portions 32 adjacent to each other in the conveyance direction of the conveyance means 25. That is, for each burner means 41, a heating power adjusting means 42, an ignition means 57, and a flame detecting means 58 are provided.

  As shown in FIG. 4, the space 56 having a rectangular shape in plan view for each burner means 41 includes a lower heat insulating bottom plate 48, left and right heat insulating side plates 23, and front and rear heat insulating members (upward protruding portions 32) 33. For example, the size of the space portion 56 is substantially the same as that of the bottom plate portion 7 of one rice cooker 2. The heat insulating bottom plate 48, the heat insulating side plate 23, and the heat insulating member 33 are all made of the same ceramic fiber heat insulating material.

  When the rice cooker 2 is positioned above the space 56 in the heating chamber 16, the front end portion of the bottom plate portion 7 of the rice cooker 2 and the upper protruding portion 32 located on the front side of the burner means 41 are close to each other and cooked. With the rear end portion of the bottom plate portion 7 of the pot 2 and the upper projecting portion 32 located on the rear side of the burner means 41 being close to each other, the upper portion of the space portion 56 is the bottom plate portion of the rice cooker 2 (one rice cooker As a result, the space 56 is substantially sealed.

  In addition, as shown in FIG. 7, the continuous rice cooker 1 is configured such that the time change of the temperature in each rice cooker 2 (hereinafter referred to as “the temperature in the kettle”) changes the rice cooked in each rice cooker 2. Control means 60 for automatically and individually controlling each heating power adjusting means 42 on which the rice cooker 2 is positioned so as to have an optimum temperature curve suitable for the type is provided.

  The type of rice (item) means, for example, the types of rice, vinegared rice, salted rice, baked rice, and the like, as well as varieties of rice itself, and finishing methods such as soft finishing or hard finishing. There is an optimum temperature curve suitable for each type (ideal temperature curve according to the type of rice), and the control means 60 determines the temperature in the kettle according to the type of rice for each cooker 2. Each thermal power adjusting means 42 is individually controlled so that the change with time becomes the optimum temperature curve.

  Here, each thermal power adjusting means 42 has a mixed gas supply pipe 61 having a downstream end connected to the lower part of the main body 45 of the burner means 41, and a fuel gas is provided at the upstream end of the mixed gas supply pipe 61. The discharge side of a mixer 62 that generates a mixed gas of water and air is connected.

  An air supply pipe 63 is connected to the air supply port of the mixer 62, and a blower 64 that blows air is connected to the air supply pipe 63. A fuel gas supply pipe 65 is connected to the fuel gas supply port of the mixer 62, and a flow rate for detecting the flow rate of the fuel gas mixed with the air pumped by the blower 64 is provided in the middle of the fuel gas supply pipe 65. A flow sensor 66 serving as detection means is provided. The mixed gas supply pipe 61, the mixer 62, the air supply pipe 63, the blower 64, the fuel gas supply pipe 65, and the flow rate sensor 66 constitute the thermal power adjusting means 42.

  The control means 60 is electrically connected to a motor (drive unit) 64a of the blower 64 of each heating power adjustment means 42, a flow rate sensor 66, and a motor 28 of the transport means 25.

  Then, the control means 60 applies the flow rate sensor 66 to the heating power adjusting means 42 in which each rice cooker 2 is positioned above so that the time change of the temperature in each cooker 2 becomes an optimum temperature curve. Based on the detection, the motor 64a of the blower 64 is controlled. That is, the control means 60 detects the detection signal from each flow sensor 66 in accordance with a preset heating program (a program for setting the time change of the temperature in the kettle to an optimum temperature curve suitable for the type of rice to be cooked). Based on the above, while constantly monitoring the flow rate of the fuel gas flowing through the fuel gas supply pipe 65, the rotational speed of the motor 64a of each blower 64 is variably controlled so as to adjust the air supply amount with respect to the fuel gas supply amount.

  The flow rate sensor 66 has a display unit that displays the flow rate of the fuel gas flowing through the fuel gas supply pipe 65 as a numerical value. Further, each burner means 41 can independently perform a heating process (rice cooking work) from the start of rice cooking to the completion of rice cooking based on the control of the heating power adjusting means 42 by the control means 60.

  For this reason, for example, even when the rice cooker 2 is stopped in the middle of cooking, the control means 60 is configured so that the time change of the temperature in each stopped rice cooker 2 becomes the optimum temperature curve. Each heating power adjusting means 42 located above is individually controlled, and as a result, the heating process up to the completion of rice cooking is executed in the stopped rice cooking pot 2. In addition, the control means 60 sets the transport means 25 as tact transport (intermittent movement), and even when the rice cooker 2 is transported tact by a plurality of times, Each heating power adjusting means 42 in which the rice cooker 2 is positioned above is individually controlled so that the time change of the temperature becomes the optimum temperature curve. Regarding the control of the heating power adjusting means 42 by the control means 60, it is possible to extinguish the fire if gas combustion is unnecessary even after the completion of rice cooking or during the heat treatment.

  Next, the operation of the continuous rice cooker 1 will be described.

  As shown in FIG. 2, when outside air passes through the inlet side member 36 and enters the heating chamber 16, particularly cold air tries to flow along the bottom surface portion 36 a of the inlet side member 36. The flow is blocked by the upper protruding portion 32 protruding upward from the bottom surface portion 36a between the inlet side member 36 and the heating chamber 16.

  And when the rice cooker 2 is conveyed in the heating chamber 16, since the bottom plate part 7 of the rice cooker 2 approaches the upper protrusion 32, the intrusion of cold air is prevented. Further, in the heating chamber 16, the upper protrusion 32 positioned across the burner means (heating unit) 41 adjacent in the transport direction prevents air from flowing over the entire heating means 31, and heating. The air in the space 56 on the heating unit 41 is drifted by the bottom plate portion 7 of the rice cooker 2 that is transported into the chamber 16 and positioned above the burner means 41 and the upper protruding portion 32 that is positioned before and after the bottom plate portion 7. It will be.

  In such a state, first, at the time of ignition before the start of rice cooking, the mixed gas released from the surface combustion member 46 of the burner means 41 stagnates in the substantially sealed space 56. For this reason, all of the remaining surface combustion members 46 are ignited based on ignition of one surface combustion member 46 by the ignition means 57.

  Further, during combustion, which is during rice cooking, hot air generated by the combustion of the mixed gas stagnates in the substantially sealed space 56. For this reason, the bottom plate part 7 of the rice cooker 2 is efficiently heated by the stagnant hot air.

  Furthermore, the hot air that has finished heating the bottom plate portion 7 of the rice cooker 2 heats the side plate portion 8 while rising along the side plate portion 8 of the rice cooker 2. At this time, the upper protruding portion 32 on the upper surface of the heating means 31 not only intrudes cold air from the outside of the continuous rice cooker 1 but also blocks the air flow between the burner means 41. As for the hot air rising along the side plate portion 8, the upward flow becomes gentle, and as a result, the side plate portion 8 of the rice cooker 2 is also efficiently heated.

  Thus, for example, a plurality of rice cookers 2 containing rice, water, etc. are tact-conveyed by one conveyer in the conveying direction by the conveying means 25 (one tact conveyance), and the type of rice cooked in each rice cooker 2 The control means 60 controls each heating power adjusting means 42 positioned above the corresponding burner means 41 according to a preset heating program so as to obtain an optimum temperature curve suitable for each of the burners. Heated by the means 41, continuous cooking is performed.

  Here, in order to cook white rice into rice, for example, when the heating power of each burner means 41 is as shown in FIG. 8 (a), the time change of the temperature in the kettle is shown in FIG. 8 (b). Although it becomes a standard temperature curve α, in this case, if the type of rice to be cooked is light rice, it will be overheated and burnt.

  Therefore, for example, as shown by a dotted line in FIG. 8A, when the heating power of the third one burner means 41 counted from the inlet side of the pot is gradually reduced, the time change of the pot internal temperature is shown in FIG. The temperature curve γ shown in b) is obtained.

  That is, for example, during the time allotted for the third one burner means 41 (for example, 90 seconds), not only the firepower is changed in all the allotted times, but also from the middle of the allotted times. However, by changing the heating power of the burner means 41, the time change of the temperature in the kettle becomes a temperature curve γ, which is an optimum temperature curve suitable for hot rice.

  And when the control means 60 cooks baked rice with the rice cooking pot 2, the time change of the temperature in each cooking pot 2 heated in the heating chamber 16 becomes a temperature curve (optimum temperature curve) γ. Each heating power adjusting means 42 is individually controlled according to a predetermined heating program.

  According to such a continuous rice cooker 1, the control means 60 controls all of the thermal power adjusting means 42, and according to the type of rice to be cooked, the finer with the passage of time from the start of cooking to the completion of cooking. Therefore, regardless of the type (item) of rice, it can be cooked to the desired optimal rice.

  Also, the rice cooker 2 is not limited to one tact conveyance, but for example, the predetermined time allocated to each burner means 41 is changed from 90 seconds to 180 seconds, and two tact conveyance (tact conveyance for every two kettles) is performed. ) And, if discharging the rice cooker 2 from the continuous rice cooker 1 two by two improves the balance with the pre-process and the post-process of the continuous rice cooker 1, it is necessary to carry on multiple tacts and be necessary on the rice cooking line. Continuous rice can be supplied from time to time, and can be cooked to the optimal rice. In addition, at the maximum, it is possible to perform continuous rice cooking by tact-conveying (multi-tact conveying) twelve rice cookers 2 so as to be totally replaced.

  Further, for example, even when the conveying means 25 stops driving and the rice cooking pot 2 stays in the heating chamber 16 during cooking, the rice cooking stopped by the control change of the heating power adjusting means 42 by the control means 60. The heat treatment can be continued from the middle of cooking rice to completion of cooking in the pot 2, and can be cooked to the desired optimal rice.

  On the other hand, a plurality of upper projecting portions 32 are provided on the upper surface of the heating means 31 and are arranged side by side in the transport direction at intervals, so that the flow of air over the entire upper surface of the heating means 31 is prevented. Hot air is likely to stagnate between the bottom plate portion 7 and the upper surface of the heating means 31, and the bottom plate portion 7 of the rice cooker 2 can be efficiently heated by the heating means 31, so that continuous rice cooking can be performed efficiently.

  Also, in the vicinity of the heating chamber inlet 18 of the heating chamber 16, the bottom surface 36a of the inlet side member 36 is positioned below the upper surface of the upper protruding portion 32a, and therefore flows along the bottom surface 36a of the inlet side member 36. Inflow of the low-temperature outside air into the space 56 can be suppressed by the upper protrusion 32a (that is, by a step between the bottom surface 36a and the upper protrusion 32a), and the bottom plate portion 7 of the rice cooker 2 can be efficiently heated.

  Further, when the heating means 31 is ignited, the mixed gas is likely to stagnate in the substantially sealed space 56, so that a plurality (a large number) of the surface combustion members 46 of each heating unit 41 are adjacent to each other for the purpose of burning. Even if they are arranged at intervals, the surface combustion members 46 can be easily ignited.

  In the above embodiment, the steaming chamber 17 is formed above the heating chamber 16. However, for example, as shown in FIG. 9, the steaming chamber 17 is not provided, and the rice cooker after cooking is completed. 2 may be discharged out of the apparatus main body 15 from the heating chamber outlet 19.

  The continuous rice cooking apparatus 1 shown in FIG. 9 has a U-shaped cross section (substantially U-shaped) that is spaced apart from one rice cooker 2 after being heated (cooked rice) by the heating means 31 with a gap 35 therebetween. And a groove-shaped outlet side member 37.

  The outlet side member 37 is disposed in the heating chamber 16 in the vicinity of the heating chamber outlet 19 (standby position after heating). Like the inlet side member 36, the outlet side member 37 has a horizontal bottom surface portion 37a, and vertical surface side surfaces 37b that are erected at both left and right ends of the bottom surface portion 37a. . Therefore, in the vicinity of the heating chamber outlet portion 19 of the heating chamber 16, the bottom surface portion 37a of the outlet side member 37 is positioned below the upper surface of the upper protruding portion 32b, and therefore flows along the bottom surface portion 37a of the outlet side member 37. The inflow of the low temperature outside air into the space portion 56 can be suppressed by the upper protruding portion 32b (that is, by the step between the bottom surface portion 37a and the upper protruding portion 32b), and the bottom plate portion 7 of the rice cooker 2 can be efficiently heated.

  Further, the upward projecting portion 32 on the heating means 31 is not limited to the one provided on the upper surface of the heat insulating bottom plate 48, and may be one integrally provided on the upper surface of the heat insulating bottom plate 48, for example.

  Further, for example, a configuration in which the upper protruding portion 32 is provided on the upper surface of the heating unit so as to be movable and adjustable along the conveyance direction, a configuration in which the upper protruding portion 32 is provided on the upper surface of the heating unit, and the like may be employed.

  Further, as the heating means 31, twelve burner means 41 are arranged along the conveying direction of the conveying means 25, but the heating power adjusting means 42 having the same configuration is provided for each of the plurality of burner means 41 having the same configuration. In addition, each heating power adjusting means 42 is automatically and individually controlled, and control means 60 that enables fine heating power adjustment with the passage of time from the start of rice cooking to the completion of rice cooking according to the type of rice. If it is provided, the number of burner means 41 arranged as the heating means 31 is not related, and the desired optimal rice can be cooked.

1 Continuous rice cooker 2 Rice cooker
25 Transport means
30 Moving area
41 Burner means
42 Thermal power adjustment means
46 Surface combustion component
60 Control means
64 blower
66 Flow sensor

Claims (4)

Conveying means for moving the rice cooker in the conveying direction;
A plurality of burner means disposed below the moving region of the rice cooker and positioned side by side in the conveying direction;
Thermal power adjusting means that is provided corresponding to each burner means and adjusts the thermal power of the corresponding burner means,
Control means for individually controlling each of the heating power adjusting means so that the time change of the temperature in the rice cooker becomes an optimum temperature curve suitable for the type of rice cooked in the rice cooker. Continuous rice cooker. Each thermal power adjustment means
A blower that pumps air;
A flow rate sensor for detecting the flow rate of the fuel gas mixed with the air pressure-fed by the blower,
The continuous rice cooking apparatus according to claim 1, wherein the control unit controls the blower based on detection of the flow sensor. Even if the control means uses tact conveyance as the conveying means and tact conveys rice cookers for a plurality of times, the time change of the temperature in the rice cooker carrying the tact conveyance becomes an optimum temperature curve. Further, each of the heating power adjusting means is individually controlled. The continuous rice cooking apparatus according to claim 1 or 2, wherein 4. The continuous rice cooker according to claim 1, wherein each burner means has a plurality of surface combustion members that heat a rice cooker by burning a mixed gas of fuel gas and air.

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