JP6410481B2 - Deep-fried deep-frying apparatus and deep-fried deep-fried manufacturing method - Google Patents

Description

  The present invention relates to a deep-fried frying device and a frying frying method.

  In general, deep-fried fried food is manufactured by sequentially moving a fried dough made from soybeans in an oil tank divided into two stages, a low-temperature tank and a high-temperature tank, and heating it. First, in the heating in the low temperature oil tank, the dough is expanded by evaporation of the moisture contained in the fried dough and the volume is expanded, and then the surface is hardened by heating in the high temperature oil tank, so that the expanded state is maintained. ing.

  As a heating method for performing such heating, heating is performed by a direct-fire heating method in which the lower surface side of the oil tank is directly heated by a burner, or by a heat exchanger installed separately from the oil tank as disclosed in Patent Document 1. There is a circulation heating system that circulates the oil.

  As shown in FIG. 3, in the frying production apparatus that employs the direct heating method, in the oil tank 101 in which the low temperature tank 111 and the high temperature tank 112 are continuous, the burners 161 to 161 that heat the low temperature tank 111 and the high temperature tank 112 are heated. A temperature gradient is generated in the oil tank 101 by changing the number of burners 162 to 162 to be operated. Such a direct-fired heating method is characterized in that the oil can be maintained at a high temperature, and that the oil runs out after frying.

  On the other hand, as shown in FIG. 4, a frying frying manufacturing apparatus employing a circulating heating system is provided with a heat exchanger 245 and a pump 246 in a low temperature tank 211 in an oil tank 201 in which a low temperature tank 211 and a high temperature tank 212 are continuous. The tank 212 is provided with a heat exchanger 255 and a pump 256, and the oil heated by the heat exchangers 245 and 255 is circulated in each of the low temperature tank 211 and the high temperature tank 212 by the action of the pumps 246 and 256. Yes. Such a circulating heating system has the characteristics that there is little variation in temperature and the oil does not easily deteriorate.

No. 7-22689

  However, in the frying manufacturing apparatus that employs the direct-fired heating method as shown in FIG. 3, variation in thermal power is likely to occur, and stable temperature management in the oil tank 101 is difficult, and the conveying direction of the fried dough A in the oil tank 101 is difficult. There was a problem that the temperature in the width direction with respect to X was difficult to be uniform.

  On the other hand, although the frying production apparatus employing the circulating heating method as shown in FIG. 4 has less temperature variation compared to the direct fire heating method, the heat exchangers 245 and 255 heat by the indirect steam, so the heat to the oil There is a problem that the exchange capacity is low and the temperature is difficult to rise, and the frying production equipment adopting the circulating heating method as shown in Fig. 4 is inferior to direct flame heating in terms of the elasticity and texture of frying after frying. It was.

  In addition, when producing frying fried chicken, it is necessary to increase the strength of the fried food so that it does not break, but in the conventional direct-fired heating method or circulating heating method, it is specially designed to increase the fried food strength. Has not been devised.

  The present invention has been made in view of the above-mentioned problems, and its purpose is that there is little variation in temperature, temperature maintenance can be managed, oil shortage after frying is good, elasticity is provided for frying, and any frying It is an object of the present invention to provide a deep-fried deep-frying production apparatus that is not easily torn even when producing potato and has a good texture.

  In order to achieve the object, the present invention takes the following means.

That is, the deep-fried frying manufacturing apparatus of the present invention has an oil tank, conveying means for conveying deep-fried dough from the oil tank input side to the carry-out side, an oil suction port and an oil supply port, and the oil suction port from the oil suction port to the inside of the oil tank. Circulating heating means for sucking oil, heating the sucked oil and supplying the oil into the oil tank from the oil supply port, and direct-fire heating means for directly heating the oil tank provided on the carry-out side of the oil tank , The oil supply port is provided on the oil tank carry-out side of the oil suction port, and the circulation heating means includes an oil suction pipe connected to the oil suction port, an oil supply pipe connected to the oil supply port, A heat exchanger that is connected to the oil supply pipe and heats the oil to be supplied to the oil supply pipe, and the oil in the oil suction pipe is sucked and supplied to the oil supply pipe through the heat exchanger. And a circulation pump for circulating the oil in the oil tank, Supply pipe is characterized in that near the outlet is connected by inclined toward the closing side to the oil supply port.

If comprised in this way, since a circulation type heating means will circulate, heating the oil in an oil tank, the dispersion | variation in oil temperature will be decreased and it will become possible to perform temperature maintenance management easily. In addition, since the direct fire heating means performs direct fire heating on the carry-out side of the oil tank, high-temperature heating is facilitated compared to heating oil only by the circulation type heating means, so that oil shortage after frying is good. It is possible to produce deep-fried fried foods that are elastic, are not easily torn when making an indulgent, and have a good texture. Furthermore, since the direct fire heating means performs direct fire heating, a stable high temperature state can be maintained, so that variations in production lots can be suppressed and stable fried chicken can be produced. In addition, since the direct-fire heating means is provided on the carry-out side of the oil tank, it is possible to suppress the deterioration of the oil as compared to performing the direct-fire heating over the entire oil tank.
In addition, since the oil supply port is provided on the oil tank carry-out side of the oil suction port, the fried dough can be heated gradually from a low temperature to a high temperature so that the fried dough can be fried appropriately. It is possible to efficiently perform heat exchange between the oil and the fried dough.
Further, the circulation type heating means includes an oil suction pipe connected to the oil suction port, an oil supply pipe connected to the oil supply port, and an oil supply pipe connected to the oil supply pipe and heating the oil. A heat exchanger that supplies the oil, and a circulation pump that circulates the oil in the oil tank by sucking the oil in the oil suction pipe and supplying the oil to the oil supply pipe through the heat exchanger, Since the oil supply pipe is connected to the oil supply port so that the vicinity of the outlet of the oil supply pipe is inclined toward the input side, the oil flow from the carry-out side to the input side in the oil tank is more effectively formed. Can do.

The frying device of the present invention has an oil tank, a conveying means for conveying the fried dough from the oil tank input side to the carry-out side, an oil suction port and an oil supply port, and from the oil suction port to the inside of the oil tank. Circulating heating means for sucking oil, heating the sucked oil and supplying the oil into the oil tank from the oil supply port, and direct-fire heating means for directly heating the oil tank provided on the carry-out side of the oil tank, The circulation type heating means is provided on each of the oil tank input side and the carry out side, and in any of the circulation type heating means, the oil supply port is provided on the oil tank discharge side from the oil suction port, And the whole oil tank is comprised so that it may become a temperature gradient which becomes high as it goes to the carrying-out side from the injection | throwing-in side.

Also, it is possible to fry multiple fried dough at a time,
In order to suppress variations, the conveying means is a width direction orthogonal to the conveying direction of the fried dough.
It is configured so that it can be held in a state where a plurality of sheets are aligned in the direction and can be transported toward the transport direction.
Preferably it is.

  Further, in order to further reduce the variation in the oil temperature and to form a temperature gradient that becomes higher as the oil temperature moves from the input side to the carry-out side, the circulating heating means is provided with the input side and the carry-out side of the oil tank. Preferably, the temperature of the oil heated by the circulation-type heating means on the carry-out side is higher than the temperature of the oil heated by the circulation-type heating means on the input side.

  Further, in order to keep the temperature of the oil on the carry-out side at a high temperature and eliminate the temperature unevenness, the oil in the circulation-type heating means on the carry-out side has an installation position in the carrying direction of the direct fire heating means. A section between the suction port and the oil supply port is preferable.

  Then, by manufacturing the deep-fried food using the above-described deep-fried food manufacturing apparatus, it is possible to manufacture a deep-fried food that has elasticity, is resistant to tearing even when making spoils, and has a good texture. In addition, it is possible to suppress fluctuation for each production lot and to manufacture fried chicken with stable quality.

  According to the present invention described above, temperature maintenance can be maintained with little variation in temperature, oil draining after frying is good, elasticity is obtained in frying, and it is difficult to break even when producing any frying, and the texture is also good It is possible to provide a deep-fried frying manufacturing apparatus and a deep-fried manufacturing method.

Explanatory drawing which shows the fried chicken manufacturing apparatus which concerns on embodiment of this invention. The figure which shows an example of the temperature distribution in the oil tank of the frying apparatus. Explanatory drawing which shows the oil tank of the conventional direct fire heating system. Explanatory drawing which shows the oil tank of the conventional circulation heating system.

  Hereinafter, a deep frying manufacturing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, in the deep-fried manufacturing apparatus of the present embodiment, the conveyor 2, which is an endless track-shaped conveying means, carries out the deep-fried dough A from the charging end 1 a (the right end in FIG. 1) of the oil tank 1 in which oil is stored. It is conveyed to the end 1b (the left end in FIG. 1), and the two circulating heating means 4 and 5 and the direct fire heating means 6 heat the oil in the oil tank 1 to produce fried food. In addition, FIG. 1 shows typically the deep-fried fry production apparatus of this embodiment, and the shape and size of the deep-fried dough A and each component in the figure are different from actual ones. In the present embodiment, the direction in which the fried dough A is conveyed is defined as the conveyance direction X, and the direction in the horizontal plane perpendicular to the direction in which the fried dough A is conveyed is defined as the width direction. In addition, the deep-fried dough A used in the present invention can be obtained by a known manufacturing method, that is, the raw material can be a raw material mainly composed of soy protein in addition to ordinary whole soybeans, For example, a rectangular shape of 8 cm × 12 cm is used.

  The oil tank 1 is a tank having a total length (length in the conveying direction) of 17 m, a width of about 1.5 m, and a height of about 50 cm and having a substantially rectangular shape in plan view, and can store oil therein. The input end 1a side (input side) into which the deep-fried dough A is input is a low-temperature tank 11, and the discharge end 1b side (unload side) from which the fried deep-fried dough A (fried) is carried out is a high-temperature tank 12. However, the low-temperature tank 11 and the high-temperature tank 12 are not partitioned by a special member, but simply have an intermediate position in the transport direction X of the oil tank 1 as a boundary, and the input side is the low-temperature tank 11 and the unloading side with respect to this boundary. Is called a high-temperature bath 12.

  The low temperature tank 11 is a part that heats the input deep-fried dough A at a relatively low temperature, and oil is supplied to the bottom surface 11 c of the oil inlet 41 for sucking oil in the low temperature tank 11 and the low temperature tank 11. An oil supply port 42 is provided. The low temperature tank 11 is connected to the circulation heating means 4 via the oil suction port 41 and the oil supply port 42.

  The high-temperature tank 12 is a part that heats the deep-fried dough A heated in the low-temperature tank 11 at a relatively high temperature. The bottom surface 12c has a third oil inlet 51 for sucking oil in the high-temperature tank 12 and a high temperature. An oil supply port 52 for supplying oil into the tank 12 is provided. The high temperature bath 12 is connected to the circulation heating means 5 through the oil suction port 51 and the oil supply port 52. In addition, a direct fire heating means 6 is also installed in the high temperature bath 12.

  The conveyor 2 is disposed along the bottom surface 11c, 12c over almost the entire length and width of the oil tank 1, and conveys the deep-fried dough A input at the input end 1a of the oil tank 1 to the carry-out end 1b of the oil tank 1 at a constant speed. To do. The conveyor 2 is provided with a gondola (not shown) for receiving and positioning the fried dough A, and a plurality of fried dough A are held in a state of being aligned in the width direction.

  The circulation type heating means 4 is provided on the input side of the oil tank 1, that is, the low temperature tank 11, and includes an oil suction pipe 43 connected to the oil suction port 41, and an oil supply pipe 44 connected to the oil supply port 42. The heat exchanger 45 that heats the sucked oil and the circulation pump 46 that circulates the oil are provided. Then, the circulation type heating means 4 heats the low temperature oil sucked from the oil suction port 41 and supplies the high temperature oil to the oil tank 1 from the oil supply port 42.

  Here, the oil suction ports 41 are provided at a plurality of locations on the bottom surface 11 c of the low-temperature tank 41, and each is connected to the circulation pump 46 by the oil suction pipe 43.

  The oil supply port 42 is provided closer to the carry-out side than the oil suction port 41 and is connected to the oil supply pipe 44 to supply oil heated by the heat exchanger 45 to the oil tank 1. is there. As described above, since the oil supply port 42 is provided on the carry-out side with respect to the oil suction port 41, the oil traveling from the carry-out side to the input side between the oil supply port 42 and the oil suction port 41 of the low-temperature tank 11. Therefore, the deep-fried dough A moves against the flow of oil, and heat exchange between the oil and the deep-fried dough A can be performed efficiently.

  The oil suction pipe 43 connects the plurality of oil suction ports 41 to 41 and the circulation pump 46, and as shown in FIG. 1, the side connected to the oil suction ports 41 to 41 branches into a plurality. Yes.

  The oil supply pipe 44 connects the heat exchanger 45 and the oil supply port 42, and the oil supply pipe 44 is connected to the oil supply port 42 so that the vicinity of the outlet is inclined toward the charging side. Therefore, the oil supplied into the low temperature tank 11 flows toward the charging side.

  The heat exchanger 45 introduces heated steam through a valve from a steam boiler (not shown), and the heated steam indirectly heats the oil by heating the heat transfer tube through which the oil flows.

  The circulation pump 46 circulates oil between the oil suction port 41 and the oil supply port 42, and makes the oil suction port 41 have a negative pressure through the oil suction pipe 43, thereby allowing the oil in the low temperature tank 11 to be circulated. And is supplied to the oil supply pipe 44 via the heat exchanger 45 to feed oil into the low temperature tank 11.

  And since this circulation type heating means 4 circulates while heating the oil in the low temperature tank 11, the dispersion | variation in the oil temperature in the low temperature tank 11 can be decreased, and the maintenance of temperature can be performed.

  On the other hand, the circulation heating means 5 is provided on the carry-out side of the oil tank 1, that is, the high-temperature tank 12, and an oil suction pipe 53 connected to the oil suction port 51 and an oil supply pipe connected to the oil supply port 52. 54, a heat exchanger 55 for heating the sucked oil, and a circulation pump 56 for circulating the oil. Then, the low-temperature oil sucked from the oil suction port 51 is heated, and the oil having a high temperature is supplied from the oil supply port 52 to the high-temperature tank 12.

  The oil suction ports 51 are provided at a plurality of locations on the bottom surface 12 c of the high-temperature tank 12, and each is connected to the circulation pump 56 by the oil suction pipe 53.

  The oil supply port 52 is provided on the carry-out side with respect to the oil suction port 42 and is connected to the oil supply pipe 54, and supplies oil heated by the heat exchanger 55 to the oil tank 1. As described above, since the oil supply port 52 is provided on the carry-out side with respect to the oil suction port 51, the oil traveling from the carry-out side to the input side between the oil supply port 52 and the oil suction port 51 of the high-temperature tank 12. Therefore, the deep-fried dough A moves against the flow of oil, and heat exchange between the oil and the deep-fried dough A can be performed efficiently.

  The oil suction pipe 53 connects the plurality of oil suction ports 51 to 51 and the circulation pump 56, and as shown in FIG. 1, the oil suction ports 51 to 51 are branched into a plurality.

  The oil supply pipe 54 connects the heat exchanger 55 and the oil supply port 52.

  The heat exchanger 55 introduces heated steam from a steam boiler (not shown) through a valve, and the heated steam indirectly heats the oil by heating the heat transfer tube through which the oil flows.

  The circulation pump 56 circulates oil between the oil suction port 51 and the oil supply port 52, and makes the oil suction port 51 have a negative pressure through the oil suction pipe 53, thereby allowing the oil in the high-temperature tank 12 to be circulated. And is supplied to the oil supply pipe 54 via the heat exchanger 55 to feed oil into the high-temperature tank 12.

  And since this circulation type heating means 5 heats and circulates the oil in the high-temperature tank 12, the variation in the oil temperature in the high-temperature tank 12 can be reduced and the temperature can be maintained and managed.

  The temperature of the oil heated by the circulating heating means 5 provided in the high temperature tank 12 and supplied from the oil supply port 52 is heated by the circulating heating means 4 provided in the low temperature tank 11 and from the oil supply port 42. It is set to be higher than the temperature of the supplied oil.

  As described above, the flow from the oil supply port 42 in the low temperature tank 11 toward the oil intake port 41 on the input side, and the flow from the oil supply port 52 in the high temperature tank 12 toward the oil intake port 51 on the input side therefrom, Since an oil flow from the carry-out side to the input side is formed as a whole in the oil tank 1, the deep-fried dough A always moves against the oil flow while being conveyed in the oil tank 1. Heat exchange with the fabric A can be performed efficiently.

  In addition, the shape, installation location, and number of installation of the oil suction ports 41 and 51 and the oil supply ports 42 and 52 provided in the circulation heating means 4 and 5 described above are appropriately changed depending on the size of the oil tank 1 and the set temperature of the oil. It is possible.

  The direct fire heating means 6 has burners 61 to 61 provided on the carry-out side of the oil tank 1, that is, the high temperature tank 12, and the internal oil is heated by directly heating the high temperature tank 12 from below the high temperature tank 12. It is possible to heat.

  As shown in FIG. 1, the burner 61 is disposed between the plurality of oil suction ports 51 to 51 provided in the high-temperature tank 12, and the oil suction port 51 and the oil supply port on the most carry-out side of these oil suction ports 51 to 51. 52 are provided respectively.

  These burners 61 to 61 are for mixing a fuel such as LPG gas with air and burning it, and can heat the high-temperature tank 12 directly. As described above, since the burners 61 to 61 are provided in the section between the oil suction ports 51 to 51 and the oil supply port 52 of the circulation heating means 5, the oil heated to a high temperature by the burner 61 is sucked into the oil. The section between the ports 51 to 51 and the oil supply port 52 circulates and stays in this section, and the oil temperature in this section can be kept high.

  In addition, it is preferable to provide a ventilation fan etc. which discharge | emit the burned gas in the vicinity where the burner 61 is installed.

  As described above, since the direct heating means 6 is provided in the high-temperature tank 12, high-temperature heating is facilitated as compared with the case where oil is heated only by the circulation heating means 4 and 5. It is possible to produce deep-fried fried chicken with good oiliness, elasticity, resistance to tearing when making an ingredient, and good texture.

  Moreover, in the high-temperature tank 12, since the hybrid heating of the oil is performed by the two heating means of the circulation type heating means 5 and the direct fire heating means 6, the heat exchange ability to the oil is stabilized and the high temperature is maintained. The variation in temperature in the width direction is reduced. Therefore, it is possible to suppress variations in the quality of the deep-fried fried (fried dough A) conveyed in a state in which a plurality of sheets are aligned in the width direction, and it is possible to manufacture a deep-fried fried chicken of stable quality. Furthermore, since the ability to exchange heat with oil is stable, it is possible to suppress the influence of manufacturing conditions such as air temperature, and it is also possible to suppress variations among manufacturing lots. In addition, since the direct fire heating means 6 is provided only in the high-temperature tank 12, it is possible to suppress the deterioration of the oil as compared with the direct fire heating over the entire oil tank 1.

  Thus, the circulation type heating means 4 provided in the low temperature tank 11 and the circulation type heating means 5 and the direct fire heating means 6 provided in the high temperature tank 12 cause the oil in the oil tank 1 to be carried out from the input side. It is heated so as to have a temperature gradient in which the temperature increases toward the side.

  FIG. 2 is a graph schematically showing an example of a temperature gradient in the oil tank according to the present embodiment. As shown in FIG. 2, in the vicinity of the charging end 1 a of the low temperature tank 11, the oil temperature is a relatively low temperature of about 90 ° C., and in the low temperature tank 11, the temperature gradually increases toward the carry-out side. It is a slope. On the other hand, in the vicinity of the boundary between the low temperature tank 11 and the high temperature tank 12, the oil temperature suddenly changes from 120 ° C. to about 150 ° C., and the temperature gradient becomes large. And in the high temperature tank 12, the high temperature state of 160-170 degreeC is maintained by performing the hybrid heating by the circulation type heating means 5 and the direct fire heating means 6, and temperature rises gently. It has a temperature gradient.

  Next, the process of frying the deep-fried dough A by the deep-fried manufacturing apparatus of the structure mentioned above is demonstrated using FIG.1 and FIG.2.

  First, when the deep-fried dough A is introduced into the gondola provided on the conveyor 2 in the vicinity of the charging end 1a of the low-temperature tank 11, the deep-fried dough A starts to move to the carry-out side in an aligned state. The fried dough A that has started moving moves in the low-temperature tank 11 while exchanging heat with oil against the flow of oil to the input side generated by the circulating heating means 4. During this time, the oil temperature in the low-temperature tank 11 gradually rises from 90 ° C., which is a relatively low temperature as shown in FIG. 2, so that the fried dough A is gradually expanded.

  Next, the deep-fried fried dough A that has passed through the low-temperature tank 11 is rapidly heated to a high temperature by passing through a large temperature gradient near the boundary between the low-temperature tank 11 and the high-temperature tank 12. And when this deep-fried dough A passes the high-temperature tank 12 with which the high temperature state of 160 to 170 degreeC was maintained, the surface of the deep-fried dough A will be hardened and the expansion state will be hold | maintained.

  By going through such a process, it is possible to produce a deep-fried fried food that has elasticity and is not easily torn even in the case of producing a fried deep-fried food.

  The fried dough (fried fish) A that has reached the vicinity of the carry-out end 1b and has been lifted up is naturally lifted by buoyancy, and can be easily pulled up.

  As mentioned above, the deep-fried frying manufacturing apparatus of this embodiment is the oil tank 1, the conveyor 2 which is a conveyance means which conveys the deep-fried dough A from the input side of the oil tank 1, and the oil suction ports 41-41 (51-51). 51) and an oil supply port 42 (52), the oil in the oil tank 1 is sucked from the oil suction ports 41 to 41 (51 to 51), and the sucked oil is heated to heat the oil from the oil supply port 42 (52). A circulation type heating means 4 (5) for supplying the oil tank 1 and a direct fire heating means 6 for directly heating the oil tank 1 provided on the carry-out side of the oil tank 1 are provided.

  Constituting in this way, the circulating heating means 4 (5) circulates while heating the oil in the oil tank, so that variations in oil temperature can be reduced and temperature maintenance can be easily performed. It has become. Moreover, since the direct fire heating means 6 performs direct fire heating on the carry-out side of the oil tank 1, high-temperature heating is facilitated compared to heating oil only by the circulation heating means 4 (5). It is possible to produce a deep-fried fried food that has good oiliness after frying, has elasticity, is not easily torn when making an indulgent, and has a good texture. Furthermore, since the direct-fire heating means 6 performs direct-fire heating, a stable high temperature state can be maintained, so that variations in production lots can be suppressed and stable fried chicken can be manufactured. In addition, since the direct fire heating means 6 is provided on the carry-out side of the oil tank 1, it is possible to suppress the deterioration of the oil as compared with the direct fire heating over the entire oil tank 1.

  Further, the conveyor 2 is configured to hold a plurality of fried dough A in a state aligned in the width direction orthogonal to the conveying direction and to convey the fried dough A toward the conveying direction. It is possible to fry, and since the inside of the oil tank 1 is kept in a stable high temperature state by the circulation type heating means 4 (5), it is possible to suppress variations in the quality of the frying oil lined up in the width direction. It has become.

  Furthermore, since the oil supply port 42 (52) is provided on the carry-out side of the oil tank 1 with respect to the oil suction ports 41 to 41 (51 to 51), the fried dough A is gradually heated from a low temperature to a high temperature. The dough A can be fried appropriately, and heat exchange between the oil and the fried dough A can be efficiently performed.

  In addition, the circulation heating means 6 includes an oil suction pipe 43 (53) connected to the oil suction ports 41 to 41 (51 to 51), an oil supply pipe 44 connected to the oil supply port 42 (52), an oil The heat exchanger 45 (55) connected to the supply pipe 44 and heated to supply oil to the oil supply pipe 44 (54) and the oil in the oil suction pipe 43 (53) are sucked into the heat exchanger 45 ( 55) and a circulation pump 46 (56) for circulating the oil in the oil tank 1 by supplying the oil supply pipe 44 (54) to the oil supply pipe 44 (54). Since it is inclined toward the input side and connected to the oil supply port 42 (52), it is possible to more effectively form the oil flow from the carry-out side in the oil tank 1 toward the input side. .

  Further, a circulation type heating means 4 is provided on the input side of the oil tank 1, and a circulation type heating means 5 is provided on the carry-out side of the oil tank 1, and the temperature of the oil heated by the circulation-type heating means 5 on the carry-out side is Since it is configured to be higher than the temperature of the oil heated by the circulation-type heating means 4 on the input side, the temperature gradient becomes smaller as the oil temperature becomes smaller from the input side toward the carry-out side. Can be formed with higher accuracy.

  Furthermore, since the installation position of the direct fire heating means 6 in the conveying direction is a section between the oil suction ports 51 to 51 and the oil supply port 52 provided in the circulation-type heating means 5 on the carry-out side, It is possible to maintain the temperature at a high temperature and eliminate temperature unevenness, thereby further stabilizing the temperature.

  And since the deep-fried fried food is manufactured using the fried food manufacturing apparatus as described above, it is possible to produce a deep-fried deep-fried food that has elasticity, is not easily broken even when making an indwelling, and has a good texture. In addition, it is possible to manufacture fried chicken with stable quality by suppressing variations among production lots.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, in the above-described embodiment, the two circulation heating means 4 and 5 are provided. However, the circulation heating means can be provided only at one place or at three or more places. .

  In the above-described embodiment, the oil suction ports 41 to 41 and 51 to 51 and the oil supply ports 42 and 52 for connecting the circulation heating units 4 and 5 are provided on the bottom surfaces 11c and 12c of the oil tank 1, You may comprise so that these openings may be provided in the side surface of an oil tank.

  Further, a temperature sensor is provided at an appropriate location in the oil tank 1 of the above-described embodiment, and at least one heating degree of the circulation heating means 4 and 5 and the direct fire heating means 6 is changed according to the value of the temperature sensor. It is also possible to configure so as to. This makes it possible to set a finer temperature gradient.

  Other configurations can be variously modified without departing from the spirit of the present invention.

A ... Deep-fried dough 1 ... Oil tank 2 ... Conveyor (conveying means)
4, 5 ... Circulation type heating means 41, 51 ... Oil suction port 42, 52 ... Oil supply port 43, 53 ... Oil suction tube 44, 54 ... Oil supply tube 45, 55 ... Heat exchanger 46, 56 ... Circulation pump 61 (6) ... Burner (direct fire heating means)

Claims (6)

An oil tank,
Conveying means for conveying the fried dough from the input side of the oil tank to the carry-out side;
A circulation type heating means that has an oil suction port and an oil supply port, sucks oil in the oil tank from the oil suction port, heats the sucked oil, and supplies the oil to the oil tank from the oil supply port;
Direct fire heating means provided on the carry-out side of the oil tank for directly heating the oil tank;
Equipped with a,
The oil supply port is provided on the oil tank outlet side than the oil suction port;
The circulation type heating means is connected to the oil intake pipe, connected to the oil supply pipe, connected to the oil supply pipe, and heated to supply oil to the oil supply pipe. A heat exchanger that circulates the oil in the oil tank by sucking the oil in the oil suction pipe and supplying the oil to the oil supply pipe through the heat exchanger. An oil frying manufacturing apparatus, wherein the supply pipe is connected to the oil supply port so that the vicinity of the outlet is inclined toward the charging side . An oil tank,
Conveying means for conveying the fried dough from the input side of the oil tank to the carry-out side;
A circulation type heating means that has an oil suction port and an oil supply port, sucks oil in the oil tank from the oil suction port, heats the sucked oil, and supplies the oil to the oil tank from the oil supply port;
Direct fire heating means provided on the carry-out side of the oil tank for directly heating the oil tank;
With
The circulating heating means are provided on the input side and the unload side of the oil tank,
  In any of the circulation type heating means, the oil supply port is provided on the oil tank carry-out side with respect to the oil suction port, and the entire oil tank has a temperature gradient that becomes higher from the input side toward the carry-out side. A deep-fried fried food manufacturing apparatus. The said conveying means is comprised so that the said fried dough can be hold | maintained in the state aligned in the width direction orthogonal to a conveyance direction, and can be conveyed toward the said conveyance direction, It is characterized by the above-mentioned. fried manufacturing apparatus according to.   The circulation type heating means is provided on the input side and the carry-out side of the oil tank, respectively, and the temperature of the oil heated by the circulation-type heating means on the carry-out side is the temperature of the oil heated by the circulation-type heating means on the input side. It is comprised so that it may become higher than this, The deep frying manufacturing apparatus of Claim 1 characterized by the above-mentioned. In the region of up to the oil supply opening from said oil inlet constituting the circulating heating means of the carry-out side, according to claim 2 or 4, wherein the disposing the burner constituting a direct flame heating means Fried chicken making equipment . Fried food is produced using the fried food manufacturing apparatus in any one of Claims 1-5, The manufacturing method of fried food characterized by the above-mentioned.

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