JP2003033280A - Grill and cooking stove therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grill used for a cooker which is enabled to correctly detect temperature of the grill chamber to control heating movement to keep heating without abnormal heating, firing, etc. SOLUTION: This grill is equipped with a grill chamber with the front grill door 11 and a plurality of thermistors A27, B28 to detect temperature at mutually different places in the grill chamber. Information of temperature detected at different places by a plurality of thermistors is processed by a heat control means 32. Accordingly, the temperature in the grill chamber can be more precisely controlled than a case temperature is detected by one temperature detecting means to control heating. Thus, heating without abnormal heating, firing, etc., can be carried out to prevent failures of burning cooked food, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calciner using a burner that uses gas or the like as a fuel as a heating source, and a stove equipped with the same.

[0002]

2. Description of the Related Art A conventional calciner of this type is disclosed in Japanese Patent Laid-Open No. 11-2.
There was a thing as described in 85446 gazette. As shown in the apparatus for preventing abnormal temperature rise of the grill 60 in FIG. 6, this is the inside of the grill cabinet 62 in which the water tray 64 is freely provided on the bottom portion 63 in the grill cabinet 62 surrounded by the grill case 61. A temperature sensor 66 for detecting the temperature inside the refrigerator above the water tray 64 is provided on the wall surface 65, and the combustion of gas is shut off based on the detection result of the abnormal temperature by the temperature sensor 66.

In this structure, the temperature inside the grill cabinet 62 is detected by the temperature sensor 66 which detects the temperature inside the grill cabinet 62 above the water tray 64 on the inner wall surface 65 of the grill cabinet 62, and the temperature is predetermined. If the temperature is higher than the temperature of, the combustion is stopped as an abnormal temperature.

Further, the temperature sensor 66 for detecting the temperature may be covered with a cover 67, or the mounting surface of the temperature sensor 66 may be recessed to mount the temperature sensor 66.
By providing a structure in which the outside air is supplied to and cooled in the vicinity of the above, and provided on the wall surface 68 behind the inner wall of the grill cabinet 62, the temperature sensor 66 is contaminated with oil or erroneous temperature is detected by radiant heat of combustion heat and malfunctions. To prevent it.

By virtue of such construction and operation, the water tray 64
The temperature inside the grill 62 is detected regardless of the amount of water and the state of the food, the gas is shut off, and the abnormal temperature rise of the grill 60 is prevented to ensure safety.

[0006]

Generally, in a conventional grill abnormal temperature preventing device, a temperature sensor is provided at one location on the rear wall surface in the grill cabinet to detect the temperature inside the grill cabinet to check whether there is any abnormality. Judgment was made, and combustion was continued or cut off. For this reason, when there is a change in the temperature distribution where there are high temperature parts, low temperature parts, etc. in the grill cabinet, the temperature is normal even if viewed from the inside of the grill cabinet.
There was a problem that cooking could not be performed due to the malfunction that the sensor detects the temperature abnormality and cuts off the combustion.

On the contrary, even though the temperature inside the grill is in an abnormal temperature state, the temperature around the temperature sensor is low and the abnormality cannot be detected. However, there is a problem in that the food in the grill is abnormally heated and the food is ignited, so that safety cannot be ensured.

Therefore, in the above conventional technique, in order to alleviate such a problem, the temperature sensor 6 for detecting the temperature is used.
6 is covered with a cover 67, the sensor mounting surface is recessed and mounted, or a structure is provided in which the outside air is supplied to the vicinity of the sensor to cool it, and the temperature sensor is provided on the wall surface behind the inner wall of the grill. Although it was prevented from getting dirty with oil and malfunctioning due to detection of erroneous temperature due to radiant heat of combustion heat, it was difficult to obtain a reliable effect for uneven temperature distribution in the grill cabinet. there were.

The present invention solves the above-mentioned conventional problems, and processes the temperature information of each of the temperature detecting means for detecting the temperature of different places in the heating chamber to control the heating, whereby the abnormality of the heating chamber is detected. (EN) Provided is a calciner which does not detect a temperature and does not malfunction even if it is not abnormal and stops heating.

[0010]

To achieve the above object, the present invention provides a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and The firing device is provided with a heating control unit that processes temperature information of each of the temperature detection units and controls heating.

According to the above means, even if there is a change in the temperature distribution where there are high temperature parts, low temperature parts, etc. in the heating chamber, the plurality of temperature detecting devices detect the temperatures in the heating chamber at different points. Since each temperature information is processed by the heating control means to control the heating, the temperatures at a plurality of locations are detected even if there is a temperature distribution when viewed from the entire heating chamber. By continuing or stopping the combustion as the temperature of the heating chamber, the malfunction that is stopped when the combustion is continued, on the contrary, even if the temperature inside the heating chamber is abnormal, It is possible to realize an easy-to-use calciner with safe heating control that does not prevent abnormal temperature detection due to low temperature.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and the temperature detecting means. The firing device is provided with a heating control unit that processes temperature information and controls heating.

In the above embodiment, the heating control means fetches temperature information of a plurality of locations in the heating chamber from the plurality of temperature detection means, processes the information, and controls heating. Therefore, even if there is a temperature distribution in the heating chamber such as high temperature part and low temperature part from the whole of the heating chamber, the detected temperatures at multiple locations are, for example, the sum average or the temperature other than the maximum temperature and the minimum temperature. By treating the temperature as the heating chamber temperature, it is possible to continue or stop the combustion, and when the combustion is needed, the malfunction occurs that the cooking cannot be performed or the temperature of the heating chamber is abnormal. It is possible to realize a safe and easy-to-use calciner that does not fail to detect this even though it is in a state.

According to a second aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. And a heating control means for controlling heating, wherein the one temperature detecting means is a firing device provided above the grill in the heating chamber and the other temperature detecting means is provided below the grill in the heating chamber. .

The above-described embodiment has the same operation as that of the embodiment described in claim 1, and in particular,
Each temperature detecting means detects the temperature of two places in the heating chamber,
Since this temperature information is processed to control the heating as the temperature of the heating chamber, it is possible to reliably control the operation of continuing and stopping the heating by the more temperature information as compared with the configuration of detecting the temperature at one location. Even if there is a temperature distribution in the heating chamber, the abnormal temperature can be reliably detected, and a safe and convenient firing device can be realized.

According to a third aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. And a heating control means for controlling heating, wherein the plurality of temperature detection means are firing devices provided in the exhaust passage of the heating chamber.

In the above-described embodiment, the heating chamber has the same function as that of the above-described first embodiment, and particularly when the heating air flows through the exhaust passage which is smaller than the heating chamber, The atmosphere in different places where the temperature distribution was generated is mixed by being contracted, and the temperature distribution of the exhaust gas in the exhaust passage does not become completely free of temperature unevenness, but becomes almost uniform. Since the temperature detection means senses, the temperature information can be detected more reliably,
It is possible to reliably continue and stop the heating, so that there is no malfunction that heating is stopped when heating is required, and conversely, even if the heating chamber temperature is in an abnormal temperature state. Therefore, it is possible to detect this and to realize a safe and easy-to-use calciner.

According to a fourth aspect of the present invention, a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means are provided. And a heating control means for controlling heating, wherein the plurality of temperature detection means are two calciners provided in the exhaust passage of the heating chamber.

The above-mentioned embodiment has the same operation as the embodiment described in claim 2 and the embodiment described in claim 3.

According to a fifth aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. And a heating control means for controlling heating, wherein the one temperature detecting means is provided in the heating chamber, and the other temperature detecting means is provided in the exhaust passage of the heating chamber.

In the above embodiment, when the food in the heating chamber is very small and the load is small, the temperature information in the exhaust passage and the temperature information in the heating chamber are processed to control heating as the temperature in the heating chamber. Therefore, it is possible to ensure continuous heating and stopping operations with a large amount of temperature information, and it is possible to reliably detect abnormal temperatures even if there is a temperature distribution in the heating chamber, making it safe and easy to use. realizable. Further, when the load is small as described above, for example, it is possible to select and process the temperature information in the exhaust passage and the temperature information in the heating chamber and use them for heating control.

According to a sixth aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. Is a firing device provided with heating control means for processing and controlling heating, and the plurality of temperature detection means are provided at the center or both sides of the exhaust passage of the heating chamber.

In the above-described embodiment, the main exhaust flow having the same function as that of the above-described embodiment and flowing through the center of the exhaust passage is provided especially when the temperature detecting means is provided at the center of the exhaust passage. The temperature of the heating chamber can be reliably detected, and when the temperature detecting means is provided on both sides of the exhaust passage, the temperature detecting means is attached at a position closer to the center of the exhaust passage. Easy to do.

According to a seventh aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. Is a firing device for controlling the temperature of the heating chamber.

In the above embodiment, since the heating control means controls the temperature of the heating chamber, it is possible to realize a safe and easy-to-use calciner that does not ignite the food.

According to an eighth aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. Is a firing device for controlling the operating time of the heating chamber.

In the above embodiment, since the heating control means controls the operating time of the heating chamber by using the temperature information of the plurality of temperature detecting means, the heating information is heated by the temperature change information of the heating chamber and the change time thereof. It becomes possible to control the continuation and stop of cooking, and the cooking status of the cooked food can be reliably controlled by temperature and time. For example, since the cooking device can control the optimum temperature and time for cooking, it is possible to realize a safe and easy-to-use baking device in which cooking does not fail and the food is not ignited.

According to a ninth aspect of the present invention, there is provided a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means. And a heating control means for controlling heating, wherein the heating control means is a calciner which controls the temperature and operating time of the heating chamber.

In the above embodiment, the heating control means controls the temperature and operating time of the heating chamber by using the temperature information of the plurality of temperature detecting means. Alternatively, either one of them can be preferentially used as the temperature of the heating chamber, and the heating can be continued or stopped, so that the cooking status of the food can be reliably controlled by the temperature and the time. For example, since the cooking device can control the optimum temperature and time for cooking, it is possible to realize a safe and easy-to-use baking device in which cooking does not fail and the food is not ignited.

According to a tenth aspect of the present invention, a heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means are provided. Is a firing device that controls the temperature and operating time of the heating chamber by selecting a plurality of pieces of temperature information.

In the above embodiment, the heating control means selects a plurality of pieces of temperature information to control the temperature and operating time of the heating chamber, so that the heating is continued or stopped by changing the temperature and the time of the heating chamber. Since it is possible to control the cooking condition, it is possible to reliably control the cooking condition of the cooked food by temperature and time. For example, since the cooking device can control the optimum temperature and time for cooking, it is possible to realize a safe and easy-to-use baking device in which cooking does not fail and the food is not ignited.

The invention according to claim 11 is a stove in which the firing device according to any one of claims 1 to 10 is incorporated, and the cooked material is safe and easy to use and does not ignite. A stove equipped with a firing device can be realized.

[0033]

Embodiments of the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG. 1 is a sectional view of a gas calciner according to an embodiment of the present invention seen from a side surface, FIG. 2 is a longitudinal sectional view from the front of the calciner, and FIG. FIG. 4 is a perspective view of a gas stove incorporating the firing device, FIG. 4 is a control block diagram of the firing device, and FIG. 5 is an operation diagram of the firing device.

In the figure, a baking unit 1 (hereinafter referred to as a grill) is provided with a water tray 5 at a bottom portion 4 of a grill case 3 in a grill case 2 which is a heating chamber so that the water tray 5 can be freely pulled out in the front-back direction. A grill door 1 for mounting a grill lower burner 7 and a grill upper burner 8 as burners on both sides of a side surface portion 6 inside and opening and closing an opening 10 in a front surface 9 of a grill case 2.
The main part is configured by attaching 1 to the water tray 5. In the case of this example, this grill 1 is incorporated in a casing 13 of a gas stove 12 as shown in FIG. 3, and a stove burner 14 and a Gotoku 15 are provided on the upper surface of the gas stove 12.

The grill case 2 is formed in a rectangular box shape with a front surface 9 having an opening 10 by a bottom portion 4 formed by bending a top plate 16 and side plates 17 on both sides into a U shape and a rear plate 19 of a rear portion 18. The exhaust passage 2 from above the rear portion 18 in the grill case 2.
0 is led out and communicated with the exhaust port 21 on the upper surface of the gas stove 12. Inside the grill case 3, a grill 22 is arranged above the water receiving tray 5, and the side plate 1 of the grill case 2 is arranged.
A lower grill burner 7 is provided below the grill 22 of FIG.

The grill case cover 23 and the grill case 2 constitute a combustion chamber 24 on the outside of the side plate 17 of the grill case 2, and the upper burner 8 of the grill is located in the combustion chamber 24 which is separated from the place of the lower grill burner 7. Is provided. Combustion chamber 24
The upper part of the table is communicated with the inside of the grill chamber 3 so that the water receiving tray 5 is filled with water and the cooked food 25 is placed on the grill 22 for cooking. In the case of this example, the combustion chamber 24 is provided on the side surface inside the grill case 3 separately from the inside of the grill case 3, and the lower grill burner 7 and the upper grill burner 8 are provided.
Although it is a double-sided grill that heats the food 25 on the grill 22 from above and below, it may be a single-sided grill in which a grill burner is provided only on the upper side of the grill 1.

The two temperature detecting thermistors A27 and B28 are a plurality of temperature detecting means whose electric resistance changes depending on the temperature, and detect the temperature of different places in the grill case 2, so that the temperature of the grill case 2 is different. The heat-sensitive portion 26 is mounted so as to protrude into the grill case 3 at a substantially central position of the rear plate 19 and above and below the grill 22 as a boundary, and the respective lead wires are led out to the rear of the rear plate 19.

As shown in FIG. 4, the gas supply control unit 29 changes the amount of gas as fuel to the lower grill burner 7 and the upper grill burner 8 to stop and supply the gas. The heating control means 32 takes in temperature information of different locations of the temperature detection thermistor A27 and the temperature detection thermistor B28 which detect the temperature in the grill case 3, and stores the temperature information by the time measurement signal from the time timer 30. The gas supply control unit 29 is controlled by a control signal based on a preset threshold value 31 and a sequence, and the amount of gas supplied to the upper grill burner 7 and the lower grill burner 8 is changed to control the heating power of both gas burners. The temperature control in the case 2 and the operation time for continuing and stopping the combustion are controlled.

The operation and action will now be described. When the food is grilled on the grill 1, gas is supplied to the lower grill burner 7 and the upper grill burner 8 by the operation of the gas supply control unit 29 and burned. Therefore, the temperature inside the grill cabinet 3 is
As shown in (4), the temperature rises according to the amount of cooked food 25 and the amount of water in the water pan 5. At this time, the rate of temperature rise is 25
If the user forgets to turn off the equipment, which changes depending on the amount of water and the amount of water, and is heated to a temperature higher than that of normal cooking, and rises in temperature, the temperature rises to the point of ignition of the cooked food 25 such as fish or oil.

Therefore, in the present invention, the temperature detecting thermistor A is used.
When the temperature sensor 27 and the temperature detection thermistor 28 detect a predetermined temperature between cooking and ignition as the ambient temperature in the grill case 3, the heating control means 32, which takes in the detected temperature signal and compares it with the threshold value 31, supplies the gas. It is possible to operate the control unit 29 to cut off the gas supply and prevent ignition in the grill case 3 due to abnormal heating. At this time, if the detected temperatures of the temperature detection thermistor A27 and the temperature detection thermistor B28 are equal, good results can be obtained regardless of which temperature detection signal the heating control means 32 controls the gas supply control unit 29.

Further, when the temperature detection thermistor A27 and the temperature detection thermistor B28 are different from each other depending on the amount of the cooked food 25, the amount of water, etc., which temperature thermistor to use is the temperature to be detected. A history or an ascending slope is determined and determined by a sequence incorporated in the heating control means 32 (selection), and either detected temperature is prioritized and adopted as the temperature in the grill case 3 to control gas supply. It is also possible to control the part 29 to cut off the supply of gas and prevent ignition in the grill case 3 due to abnormal heating. In this way, by detecting the temperature in the grill cabinet 3 and shutting off the gas supply, the temperature in the grill cabinet 3 can be directly grasped as compared with the method of shutting off the gas by the forget-to-remove timer. Will definitely be possible.

In this embodiment, one temperature detecting thermistor B28 is above the grill 22 in the grill case 2, and the other temperature detecting thermistor A27 is the grill case 2.
The heating control means 3 is provided below the grill inside to detect the temperature at two locations inside the grill case 2 and to use this temperature information.
2 processes and controls heating as the temperature in the grill case 2.

Generally, when the temperature inside the grill case 3 is detected by one temperature sensor, the temperature of the cooked food 25 is checked when the grill door 11 is closed (usually used for cooking). When the grill door 11 is temporarily opened / closed, cold air flows into the grill cabinet 3 from the grill door 11 section, so that there is too much temperature difference in the grill cabinet 3 during both use, and thus the inside of the grill cabinet 3 is cooled. The temperature distribution becomes uneven.

Therefore, since accurate temperature detection cannot be performed,
If you open and close the grill door 11 during cooking, the temperature will become abnormal and the gas will be cut off, and you will have to ignite the gas again, or if the temperature sensor overheats to an abnormal temperature, the temperature sensor will malfunction. If it is not cooled until it is cooled to below the temperature, there is a problem that even if the ignition operation is performed again, the gas is immediately cut off and the gas cannot be used.

However, in the present invention, two temperature detecting thermistors A27 and B28 are provided in the grill case 3.
By detecting the temperature inside the grill cabinet 3 by providing the temperature control means 32, when one temperature thermistor A27 detects a sudden temperature change, the heating control means 32 processes the temperature detected by another temperature detection thermistor B28. A gas stove equipped with a gas grill equipped with a gas grill that is safe and easy to use, by sending a signal to the gas supply control unit 29 to supply and cut off the gas so that inconvenience can be eliminated and abnormal temperature can be reliably detected to prevent ignition due to abnormal overheating. 12 can be realized.

Further, the temperature information detected by the temperature detecting thermistor A27 and the temperature detecting thermistor B28 is used as the heating control means 3.
By controlling the gas supply by the gas supply control unit 29 after being compared with the threshold value 31 and the like sequenced in 2, the grill 1 capable of cooking while keeping the temperature inside the grill chamber 3 constant can be realized.

Further, the temperature information detected by the temperature detecting thermistor A27 and the temperature detecting thermistor B28 is compared with the threshold value 31 or the like sequenced by the heating control means 31 to control the supply and amount of gas in time. It is possible to realize a grill that can perform cooking without erroneous control of the heating time of the food 25 after the temperatures detected by the temperature detection thermistor A27 and the temperature detection thermistor B28 exceed the threshold value 31.

Further, in this embodiment, when the cooked food 25 is placed on the grill 22, the combustion gas for heating the upper side of the cooked food 25 and the combustion gas for heating the lower side of the cooked food 25 demarcate the cooked food 25. Since they are not mixed with each other, a temperature difference occurs between the temperature detection thermistor A27 and the temperature detection thermistor B28.

Since this temperature difference causes a load on the grill 1 depending on the amount of the cooked food 25, one temperature detecting thermistor A27 and the other temperature detecting thermistor B28 arranged above and below the grill 22 as a boundary show the temperature difference. By detecting this temperature difference and comparing it with the sequence information incorporated in the heating control means 32 to control the gas supply control unit 29, information on the cooked food 25 (amount, size, etc. of the cooked food). It is possible to realize the grill 1 that can be optimally cooked according to the food 25.
Of course, by detecting the temperatures of the two temperature detecting thermistors, it is possible to realize the gas stove 12 equipped with the grill 1 which is easy to operate and is free from malfunctions such as safety against an abnormal temperature and gas supply and interruption during cooking.

In the present embodiment, the two temperature detecting thermistors are arranged at different positions in the grill case, but they may be arranged at different positions in the central portion or both sides of the exhaust passage from the grill case. Further, one temperature detecting thermistor may be provided in the grill case and the other temperature detecting thermistor may be provided in the exhaust passage from the grill case, and any configuration can achieve the initial object of the present invention. Further, in the present embodiment, the heating control means controls the temperature inside the grill case and the operation time by taking in the temperature information of the temperature detecting thermistors of the two compartments, but one of the temperature information is selected. It is also good.

[0052]

As described above, according to the present invention, the heating control means processes the temperature information at a plurality of points in the heating chamber to control the heating, as compared with the case where the heating information is controlled only at one point. It is possible to realize a calciner capable of appropriately grasping the temperature in the heating chamber, being safe without malfunction, and capable of accurately controlling heating, and a stove incorporating the calciner.

[Brief description of drawings]

FIG. 1 is a side sectional view of a gas calciner according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the front surface of the calciner according to the first embodiment.

FIG. 3 is a perspective view of a gas stove equipped with the gas firing device of the first embodiment.

FIG. 4 is a control block diagram of the gas calciner according to the first embodiment.

FIG. 5 is an operation diagram of the gas firing device in the first embodiment.

FIG. 6 is a cross-sectional view of a conventional gas firing device.

[Explanation of symbols]

1 firing device (grill) 2 grill case (heating room) 20 exhaust passage 22 grill 27 Temperature detection thermistor A (temperature detection means) 28 Temperature detection thermistor B (temperature detection means) 32 Heating control means

Claims (11)

[Claims] 1. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner equipped with heating control means. 2. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature control by processing temperature information of each of the temperature detecting means. And a heating control means for controlling the temperature, wherein the one temperature detecting means is provided above the grill in the heating chamber and the other temperature detecting means is provided below the grill in the heating chamber. 3. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner comprising a heating control means, and the plurality of temperature detection means are provided in an exhaust passage of a heating chamber. 4. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different locations in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner provided with heating control means, and the plurality of temperature detection means are provided in the exhaust passage of the heating chamber. 5. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner comprising heating control means, wherein the one temperature detecting means is provided in the heating chamber and the other temperature detecting means is provided in the exhaust passage of the heating chamber. 6. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner comprising heating control means, and the plurality of temperature detection means are provided at the center or both sides of the exhaust passage of the heating chamber. 7. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner comprising heating control means, wherein the heating control means controls the temperature of the heating chamber. 8. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature control of each temperature information of the temperature detecting means. A calciner comprising heating control means, wherein the heating control means controls the operating time of the heating chamber. 9. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature control by processing temperature information of each of the temperature detecting means. A calciner comprising heating control means, wherein the heating control means controls the temperature and operating time of the heating chamber. 10. A heating chamber for firing an object to be heated, a plurality of temperature detecting means for detecting temperatures at different places in the heating chamber, and temperature information of each of the temperature detecting means is processed to control heating. A calciner comprising heating control means, wherein the heating control means selects a plurality of pieces of temperature information to control the temperature and operating time of the heating chamber. 11. A stove incorporating the firing device according to any one of claims 1 to 10.