JP2012254038A - Hot air type roasting device - Google Patents

Abstract

A hot air roasting apparatus having a simple structure capable of uniformly roasting coffee beans and the like is provided.
A roasting container 2 into which a processed product to be roasted is charged, hot air generating means for generating hot air to be supplied into the roasting container 2, and hot air generated by the hot air generating means. The roasting device includes a plurality of nozzles 6 for spraying into the roasting container 2. The roasting container 2 is composed of a container main body 21 that is open at both upper and lower ends, and a lid member 22 that opens and closes the lower end opening. The nozzle 6 includes an upstream pipe 61 arranged in parallel with the axis of the container main body 21 at equal intervals around the axis, and an axis of the container main body 21 from the axis of the upstream pipe 61 continuous to the upstream pipe 61. The downstream pipe portion 62 has a downstream pipe portion 62 that is bent obliquely downward toward the peripheral edge of the lower end opening, and the downstream pipe portion 62 is in relation to the plane f including the axis of the container body 21 and the upstream pipe portion 61. Directed in the direction of intersection.
[Selection] Figure 1

Description

  The present invention relates to a hot-air roasting apparatus used to roast coffee beans (raw beans) and other foods using hot air.

  Conventionally, as a hot air roasting apparatus, a hot air chamber is formed in the lower part of a roasting container (casing) having a bottom plate with a plurality of holes, and the hot air supplied to the hot air chamber is roasted through a porous bottom plate. The thing of the structure which made it flow the processed material in a roasting container with the wind pressure while making it flow in into a roasting container is known (for example, patent document 1).

JP-A-6-7132

  However, in the roasting apparatus described in Patent Document 1, only the processed material positioned above the hole formed in the bottom plate of the roasting container is blown up, and the entire processed material does not flow greatly, and therefore it is uniform. There is a problem that it cannot be roasted.

  In addition, it is customary that the roasting container is made of metal, but there is a problem that the state of the processed product cannot be visually recognized from outside during the roasting process of the processed product in the roasting container. . In addition, metal roasting containers have high heat transfer and heat storage properties, so even if the temperature of hot air is lowered when the temperature in the roasting container reaches a high temperature, the temperature in the container does not drop immediately. As a result, the processed material that contacts the wall surface or bottom surface of the roasting container may be overheated. In addition, in the closed portion of the bottom plate, a gap due to thermal deformation is generated, and there is a possibility that smoke containing a fat component generated from the processed material leaks out to the surroundings. In this regard, in Patent Document 1, since a sealing material is provided on the outer periphery of the lower portion of the roasting container, it is possible to prevent smoke from leaking out. By providing the material, the apparatus cost is increased.

  The present invention has been made in view of the various circumstances as described above, and its main purpose is to use a hot-air heating type roasting device to uniformly roast coffee beans and the like. is there.

In order to achieve the above object, the present invention provides a hot air roasting apparatus described in the following (1) to (5).
(1) A roasting container into which a processed material to be roasted is charged, hot air generating means for generating hot air to be supplied into the roasting container, and hot air generated by the hot air generating means A roasting device comprising a plurality of nozzles for spraying into a container,
The roasting container is composed of a container body whose upper and lower ends are open, and a lid member that opens and closes its lower end opening.
The nozzle includes an upstream pipe portion arranged at equal intervals around the axis parallel to the axis of the container body, and a lower end of the container body from the axis of the upstream pipe portion continuously to the upstream pipe portion. A bent pipe having a downstream pipe bent obliquely downward toward the peripheral edge of the opening,
The upper end of the upstream pipe portion is a hot air inlet into which hot air from the hot air generating means flows,
The downstream pipe portion is directed in a direction intersecting a plane including the axis of the container main body and the upstream pipe portion, and a lower end thereof is a hot air injection port facing a peripheral edge portion of a lower end opening of the container main body. A hot-air roasting apparatus, characterized by
(2) The container body is an integrally molded product made of transparent heat-resistant glass, and the lower part thereof is a tapered part whose inner diameter gradually decreases toward the lower end opening part, and a flange part is provided on the outer periphery of the upper end of the container body. The hot-air roasting apparatus according to (1), wherein the hot-air roasting apparatus is formed.
(3) The lid member is a plate-like structure with a ceramic coating on the surface of a metal substrate, and a closed position for sealing the lower end opening of the container body and an open position for fully opening the lower end opening. The hot-air roasting apparatus according to (2), wherein the hot-air roasting apparatus is movable between the two.
(4) An air supply chamber in which the upper end portion of the nozzle is connected in communication and a container connection portion that houses the air supply chamber and holds the roasting container at the lower end portion are provided from the nozzle into the roasting vessel. An exhaust chamber for guiding the injected hot air to the exhaust duct,
The container connecting portion includes a fixed frame to which an upper end surface of the container main body is addressed, and a movable frame that is opposed to the fixed frame via a flange portion of the container main body and is spring-biased toward the fixed frame. The hot-air roasting apparatus according to any one of (1) to (3) above,
(5) The hot air generating means comprises a blower and an air heater,
A shelf board is provided below the container body, and an outside air intake port communicating with the suction port of the blower is formed on the shelf board at a position directly below the container body.
A process that is roasted when the bottom part is provided with a portable processed material receiver that has air permeability and is arranged in a fitted state on the outside air inlet, and the lower end opening of the container body is opened. The hot-air roasting treatment apparatus according to any one of (1) to (4), wherein an object falls and is accommodated in the treated product receiver from within the container body.
(6) The air inlet and the outside air inlet of the blower are communicated by an air intake duct,
The intake duct includes a main flow portion that directly communicates with the blower from the outside air intake port, and a secondary flow portion that communicates with the blower from the outside air intake port through an air filter,
In the intake duct, when the roasted processed product is air-cooled by the outside air drawn into the outside air intake port in the processed product receiver, the outside air flow path is switched from the main flow portion to the sub flow portion. The hot air roasting apparatus according to (5), wherein a flow path switching means is provided.

  According to the hot air roasting apparatus according to the present invention, the processed material in the roasting vessel can be swirled up and down by the hot air jetted from the nozzle. For this reason, a processed material can be well stirred and roasted uniformly without excess or deficiency.

  In addition, the nozzle includes an upstream pipe portion arranged at equal intervals around the axis parallel to the axis of the container body, and a lower end opening of the container body from the axis of the upstream pipe portion continuously to the upstream pipe portion. Therefore, when assembling a plurality of nozzles, the direction of the downstream pipe portion is easily and appropriately rotated while rotating the upstream pipe portion. Can be set.

  In addition, since the roasting container body is made of transparent heat-resistant glass, the state of the processed product can be visually recognized from the outside, and the attractive effect of enjoying the viewer's eyes by the behavior of the processed product is obtained. It is done. In addition, since the lower portion of the container body is a tapered portion, the swell of the processed product due to hot air can be increased.

  Furthermore, since the lid member is a plate-like structure with a ceramic coating on the surface of the metal substrate, it is possible to prevent a gap due to thermal deformation from occurring between the container body and the seal member without using a sealing material. In addition to being able to ensure sealing, the roasting container receives hot air and does not accumulate heat, so the inside of the roasting container is controlled to the target temperature by the temperature of the hot air sprayed from the nozzle and the air volume, The entire treated product can be heated uniformly without excess or deficiency.

  In addition, in the configuration in which a container connection part is interposed between the exhaust chamber and the roasting container and the upper end of the container body is pressed against the fixed frame by a spring force, a sealing material is also used in the upper mounting part of the container body Without being able to ensure sealing performance.

  In addition, an external air intake port communicating with the air intake port of the blower is formed at a position directly below the container main body, and a portable processed material receiver whose bottom portion has air permeability is fitted on the external air intake port. In the configuration arranged in a state, the roasted processed material in a high temperature state can be immediately air-cooled.

  In particular, a suction port and an outside air intake port of the blower are communicated by an intake duct, a main flow portion where the intake duct directly communicates with the blower from the outside air intake port, and a sub-stream connected to the blower from the outside air intake port via an air filter. And the air intake duct has a flow path for the outside air from the main flow portion as a secondary flow when the roasted processed product is air-cooled with the outside air drawn into the outside air intake port in the processed product receiver. Since the flow path switching means for switching to the part is provided, the smoke containing the fat component generated from the processed product immediately after roasting is removed by the air filter, and the blowing performance is deteriorated by the fat adhering to the blades of the blower Can be prevented.

Schematic front view showing a hot-air roasting apparatus according to the present invention Schematic plan view of the device shown in FIG. Sectional view showing the hopper Sectional view showing roasting container and its superstructure Partial enlarged sectional view showing the roasting container partially broken. Nozzle side view XX expanded sectional view of FIG. Side view showing mechanism for moving lid member Partial enlarged view of FIG. Partial sectional view showing the lower structure of the lid member Explanatory drawing which shows the state which has a cover member in a closed position Explanatory drawing which shows the state which the cover member descended from the closing position Perspective view showing the periphery of the outside air intake Flow diagram of hot air roasting apparatus according to the present invention

  Hereinafter, the present invention will be described in detail with reference to the drawings. First, the configuration of the hot-air roasting apparatus according to FIGS. 1 and 2 will be outlined. Reference numeral 1 denotes a frame of the apparatus. The roasting container 2 performs a roasting process on a processed product put in the roasting container 2, and an upper end thereof is connected to a lower end part of the exhaust chamber 4 through a container connection part 3.

  Reference numeral 5 denotes a hopper for supplying a processed material into the roasting container 2, and the lower end thereof communicates with the exhaust chamber 4 through an inclined transfer pipe 5a, whereby the processed material in the hopper 5 is transferred to the transfer pipe 5a. Through the exhaust chamber 4 and into the roasting container 2.

  In the roasting container 2, a plurality of nozzles 6 for injecting hot air as a heating medium for roasting are provided. Each upper end portion of the nozzle 6 is connected to a bottom portion of an air supply chamber 7 provided in the exhaust chamber 4, and the air supply chamber 7 supplies air to an air outlet of a blower 8 installed at a lower portion of the frame 1. It communicates via the duct DF.

  An air heater 9 (electric heater) is provided in the air supply chamber 7, and hot air generating means for generating hot air is configured by the air heater 9 and the blower 8. The blower 8 is, for example, a centrifugal blower, and the suction port thereof communicates with the outside air intake port 10 via the intake duct DS.

  In FIG. 1, 11 is a control unit that controls the blower 8 and the air heater 9, 12 is an air filter interposed between the suction port of the blower 8 and the outside air intake port 10, and 13 is in the middle stage of the frame 1. An outside air intake 10 is formed in the shelf board 13 at a position directly below the roasting container 2. Reference numeral 14 denotes a portable processed material receiver disposed in a fitted state on the outside air inlet 10, and the processed material roasted in the processed material receiver 14 is supplied from the roasting container 2. It falls and is housed.

  On the other hand, the upper end of the exhaust chamber 4 communicates with the solid-gas separator 15 via the exhaust duct DE1. In this example, the solid-gas separator 15 is a cyclone that has a conical separator body 15a and centrifuges solid components from the exhaust, and a dust collecting portion 15b is provided at the lower end of the separator body 15a. In addition, an exhaust duct DE2 for discharging the purified gas is connected to the upper end of the separator body 15a.

  Next, the structure of each part of the hot-air roasting apparatus will be described in detail. In FIG. 3, 16 is an electric cylinder provided on the center of the hopper 5, and this electric cylinder 16 is arranged on the head side. The cylinder body 16a is fixed to the frame 1 so as to face downward. A plug 16c (plug member) is attached to the telescopic rod 16b, and the plug 16c moves up and down by the expansion and contraction of the telescopic rod 16b, thereby opening and closing the lower end opening of the hopper 5. When the plug 16c moves from the descending end indicated by the one-dot chain line to the ascending end indicated by the solid line in FIG. 3, the processed material in the hopper 5 is supplied into the roasting container 2 through the transfer pipe 5a, and then the plug When 16c is moved to the descending end, the lower end opening of the hopper 5 is sealed, and hot air blowing from the roasting container 2 into the hopper 5 is prevented.

  Next, in FIG. 4, the air supply duct DF communicating with the air supply chamber 7 passes through the side surface portion of the exhaust chamber 4, and the through portion is sealed with the gasket 17. 4 and 5, the roasting container 2 includes a cylindrical container body 21 having both upper and lower ends opened and a lid member 22 that opens and closes the lower end opening. Among these, the container main body 21 is an integrally formed product made of transparent heat-resistant glass, and the lower part thereof is a tapered part 21a whose inner diameter is gradually reduced toward the lower end opening part, and a flange part 21b is formed on the outer periphery of the upper end. Yes. And as for the roasting container 2, the upper end of the container main body 21 is connected to the lower end part of the exhaust chamber 4 via the container connection part 3 as mentioned above.

  The container connecting portion 3 has a ring-shaped fixed frame 31 fixed to the outer periphery of the lower end of the exhaust chamber 4 and a movable frame 32 facing the fixed frame 31 via the flange portion 21b of the container main body 21. 32 is biased toward the fixed frame 31 by a spring 33. The fixed frame 31 is provided with a plurality of spring receiving pins 34 penetrating the movable frame 32 on the outer peripheral side from the flange portion 21b, and a receiving seat 34a formed at the lower end of the spring receiving pin 34 and the movable frame. The spring 33 is provided on the outer periphery of the spring receiving pin 34. According to this, since the upper end surface of the container main body 21 is brought into close contact with the fixed frame 31, the connection portion of the container main body 21 can be sealed without using a sealing material.

  On the other hand, as described above, a plurality of nozzles 6 are provided in the roasting container 2. As shown in FIG. 5, these nozzles 6 are bent pipes having a circular cross section in which an upstream pipe section 61 whose upper end is a hot air inlet 6 a and a downstream pipe section 62 bent with respect to the upstream pipe section 61 are integrally connected. The upper end of the hot air inlet 6 a is fixed to an end plate 71 that forms the bottom of the air supply chamber 7 with the hot air inlet 6 a communicating with the air supply chamber 7. In FIG. 6, the upstream pipe 61 and the downstream pipe 62 are bent so that their axes intersect each other at an obtuse angle, and the bending angle θ of the downstream pipe 62 with respect to the upstream pipe 61 is 30 degrees in the illustrated example. It is said that.

  As is apparent from FIG. 7, three nozzles 6 are used in this example, and the nozzles 6 are arranged at equal intervals (120 ° intervals) around the axis of the container body 21. As shown in FIG. 4, the upstream pipe 61 extends in the vertical direction in parallel with the axis of the container body 21, and the downstream pipe 62 extends from the axis of the upstream pipe 61 to the peripheral edge of the lower end opening of the container body 21. It is bent obliquely downward. In particular, as is apparent from FIG. 7, the downstream pipe portion 62 is oriented in a direction that intersects the virtual plane f including the axis of the container body 21 and the upstream pipe portion 61. That is, the downstream pipe portions 62 are deviated by a predetermined angle ψ in the circumferential direction from the radial direction of the container body 21 with reference to the axial positions of the corresponding upstream pipe portions 61.

  Therefore, the hot air jetted from the lower end openings (hot air jet ports 6b) of these nozzles 6 swirls along the lower inner peripheral surface of the container body 21, and the processing in the roasting container 2 is performed near the hot air jet ports 6b. An object is blown up along the tapered portion 21a of the container body 21. For this reason, the processed material in the roasting vessel 2 circulates while undulating up and down as shown by the dotted line in FIG. According to this, since the processed material is well agitated, uniform roasting processing can be performed, and the behavior (swell / circulation) of the processed material during roasting processing can be visually recognized from the outside. It can be used for roasting green coffee beans, and the effect of giving visitors the pleasure of seeing the behavior of green coffee beans can be obtained.

  In addition, the lid member 22 constituting the roasting container 2 is a plate-like structure in which the surface of the metal substrate is ceramic-coated, and the container body 21 is formed of an integrally molded product made of heat-resistant glass as described above. In order to suppress thermal deformation of both of them, the lower end opening of the container main body 21 is kept sealed with only the lid member 22 without using a sealing material during the roasting process. In addition, since the roasting container 2 receives hot air and does not store and overheat, the inside of the roasting container 2 is controlled to a target temperature according to the temperature and the amount of hot air sprayed from the nozzle 6 so that the entire processed material can be kept from being excessive or insufficient. It can be heated uniformly.

  In the roasting container 2, the processed product is accommodated up to about half of the downstream pipe portion 62 of the nozzle 6, and the processed product also contacts the nozzle 6 during the roasting process. From the viewpoint of prevention, the nozzle 6 is also in the same manner as the lid member 22 in that a ceramic coating is applied to the surface of the metal substrate.

  Here, the lid member 22 pivots between the closed position indicated by the solid line and the open position indicated by the alternate long and short dash line in FIG. 4, and the lower end opening of the container body 21 is sealed at the closed position. Then, it is set as the structure by which the lower end opening part of the container main body 21 becomes a full open.

  The lid member moving mechanism will be described with reference to FIGS. 8 to 12. As apparent from FIG. 8, the outer cylinder 41, the rotating ring 42, A fixing ring 43 is provided, of which the outer cylinder 41 and the rotating ring 42 are rotatable with respect to the air supply duct DF. The rod part of the electric cylinder 44 is connected to the outer periphery of the lower part of the outer cylinder 41, and the outer cylinder 41 is rotated within a predetermined angle range by expansion and contraction thereof.

  As is clear from FIG. 9, a transmission pin 45 is fixed to the upper portion of the outer cylinder 41, and a swivel arm 46 extending in the radial direction is provided on the outer periphery of the rotating ring 42. The swivel arm 46 includes a core shaft 46a, one end of which is fixed to the rotary ring 42, and a sleeve 46b that is rotatably provided on the outer periphery thereof. An operation lever 47 that engages with the transmission pin 45 is fixed to the base of the sleeve 46b. A cam 48 is fixed to the outer periphery of the tip.

  On the other hand, a bracket 49 is fixed to the tip of the core shaft 46a, and a lid receiving base 50 positioned above the cam 48 is bolted to the bracket 49. As shown in FIG. 10, the lid receiving pedestal 50 has a configuration in which an elevating slider 52 is provided in a cylindrical pedestal main body 51, and an upper end of the elevating slider 52 with respect to a boss portion 22 a provided at the center of the bottom surface of the lid member 22. The parts are connected by a spherical pair.

  Accordingly, when the outer cylinder 41 is rotated in the forward and reverse directions by the expansion and contraction operation of the electric cylinder 44 shown in FIG. 8, the swivel arm 46 is swung in the horizontal plane in synchronism with this, so that the lid member 22 is moved. It moves between the closing position and the opening position.

  FIG. 11 shows a state in which the lid member 22 is in the closed position and the lower end opening of the container body 21 is sealed. In this state, when the outer cylinder 41 is rotated in the direction of the arrow in FIG. 11 is rotated counterclockwise in FIG. 11 around the turning arm 46, and in conjunction with this, the sleeve 46b and the cam 48 are rotated in the same direction. Thus, the lift slider 52 shown in FIG. 10 is lowered by its own weight to the position supported by the cam 48 together with the lid member 22 (down about several millimeters so that the processed product in the roasting container 2 does not flow out) and is in the state shown in FIG. It becomes. Further, when the outer cylinder 41 is continuously rotated in the same direction, the lid member 22 is swung to the opening position that is out of the lower region of the lower end opening of the container body 21 in synchronization with the swivel arm 46, and thereby the container body The processed material in 21 will be discharged | emitted outside.

  When the lid member 22 is moved from the open position to the closed position, the outer cylinder 41 is rotated in the opposite direction to the above, but the fixed ring 43 defines the swivel movement range of the swivel arm 46. A stopper (not shown) is provided, and when the lid member 22 moves from the opening position to a position facing the lower end opening of the container body 21 (position shown in FIG. 12), the turning operation of the turning arm 46 remains stopped. The sleeve 46b and the cam 48 are rotated through the operating lever 47, and the lift slider 52 is pushed up by the cam 48, whereby the lid member 22 is moved up to the closing position.

  Here, immediately below the container main body 21, the processed material receiver 14 that stores the roasted processed material dropped from the lower end opening of the container main body 21 as described above is disposed. As is apparent from FIG. 13, the processed material receiver 14 is a cup shape having a handle 14a, and the bottom surface thereof is a mesh plate 14b having a gas permeability made of a wire mesh or the like. The mesh of the mesh plate 14b is set to a size that allows the passage of air and does not allow the processed material to pass through.

  As apparent from FIG. 13, the outside air inlet 10 has an edge frame 10 a into which the workpiece receiver 14 can be fitted, whereby the workpiece receptacle 14 is positioned. .

  Then, according to the processed material receiver 14 as described above, the processed material in the high temperature state is immediately cooled by the outside air sucked into the outside air intake port 10 while accommodating the processed material after the roasting process, and air cooling is performed. A later processed product can be carried to a predetermined position.

  Incidentally, since the processed product immediately after roasting generates smoke containing a fat component, if the smoke is directly sucked by the blower 8, the fat adheres to the blades of the blower 8 and the blowing performance deteriorates early. Therefore, the intake duct DS connecting the outside air intake port 10 and the intake port of the blower 8 is branched into a main flow portion DS1 and a subflow portion DS2 with an air filter 12 interposed as shown in FIG. By the valves Va and Vb (flow path switching means) provided in the main flow part DS1 and the sub flow part DS2, the outside air is sucked into the blower 8 from the main flow part DS1 during the roasting process, and the outside air is sub-charged during the air cooling of the processing object. The flow path is switched so as to be sucked into the blower 8 through the air filter 12 of the flow part DS2.

  The valves Va and Vb provided as flow path switching means in the intake duct DS are butterfly valves, gate valves, diaphragm valves, etc., but these are not limited to being provided in the main flow portion DS1 and the subflow portion DS2. Such a flow path switching means may be provided as a direction switching valve at a branch portion between the main flow portion DS1 and the subflow portion DS2.

  Next, the operation of the device of the present application configured as described above will be briefly described with reference to FIG. 14. In the hopper 5, for example, a certain amount of green coffee beans is put as a processed product. The green coffee beans are put into the roasting container 2 through the transfer pipe 5a and are accumulated on the lid member 22 in the closed position. On the other hand, outside air is supplied from the blower 8 into the air supply chamber 7, which is heated by the air heater 9 to become hot air (150 to 270 ° C.), and the hot air is injected into the roasting container 2 through the nozzle 6. . Then, the green coffee beans in the roasting container 2 are uniformly heated while being swirled up and down by hot air. Further, the hot air is sent to the solid-gas separator 15 through the exhaust chamber 4, the chaff peeled from the green coffee beans falls to the dust collecting part 15b, and the hot air from which the chaff has been removed is discharged from the exhaust duct DE2. The

  In addition, when about 10 minutes have passed since the injection of hot air into the roasting container 2, the green coffee beans become brown coffee beans, which are dropped into the processed product receiver 14 by opening the lid member 22, Air is cooled by the outside air sucked into the outside air inlet 10 in the processed product receiver 14.

  Although the present invention has been described above, the hot-air roasting apparatus can be suitably used not only for green coffee beans but also for roasting almonds and peanuts.

  The air heater 9 is not limited to being provided in the air supply chamber 7 but may be incorporated in the blower 8.

DESCRIPTION OF SYMBOLS 2 Roasting container 21 Container main body 21a Tapered part 21b Gutter part 22 Lid member 3 Container connection part 31 Fixed frame 32 Movable frame 33 Spring 4 Exhaust chamber 6 Nozzle 6a Hot-air inlet 6b Hot-air injection port 61 Upstream pipe part 62 Downstream pipe part 7 Air supply chamber 8 Blower (Means for generating hot air)
9 Air heater (hot air generating means)
DESCRIPTION OF SYMBOLS 10 Outside air intake 12 Air filter 13 Shelf board 14 Processed material receiver 14b Mesh plate DS Intake duct DS1 Main flow part DS2 Subflow part DF Air supply duct DE1 Exhaust duct DE2 Exhaust duct Va, Vb Valve (flow-path switching means)

In order to achieve the above object, the present invention provides a hot air roasting apparatus described in the following (1) to (4) .
(1) A roasting container into which a processed material to be roasted is charged, hot air generating means for generating hot air to be supplied into the roasting container, and hot air generated by the hot air generating means A roasting device comprising a plurality of nozzles for spraying into a container,
The roasting container is composed of a container body whose upper and lower ends are open, and a lid member that opens and closes its lower end opening.
The nozzle includes an upstream pipe portion arranged at equal intervals around the axis parallel to the axis of the container body, and a lower end of the container body from the axis of the upstream pipe portion continuously to the upstream pipe portion. A bent pipe having a downstream pipe bent obliquely downward toward the peripheral edge of the opening,
The upper end of the upstream pipe portion is a hot air inlet into which hot air from the hot air generating means flows,
The downstream pipe portion is directed in a direction intersecting a plane including the axis of the container main body and the upstream pipe portion, and a lower end thereof is a hot air injection port facing a peripheral edge portion of a lower end opening of the container main body. And
The hot air generating means comprises a blower and an air heater,
A shelf board is provided below the container body, and an outside air intake port communicating with the suction port of the blower is formed on the shelf board at a position directly below the container body.
A process that is roasted when the bottom part is provided with a portable processed material receiver that has air permeability and is arranged in a fitted state on the outside air inlet, and the lower end opening of the container body is opened. An object falls and is received from the container body into the processed product receiver,
The inlet of the blower and the outside air intake are communicated by an intake duct,
The intake duct includes a main flow portion that directly communicates with the blower from the outside air intake port, and a secondary flow portion that communicates with the blower from the outside air intake port through an air filter,
In the intake duct, when the roasted processed product is air-cooled by the outside air drawn into the outside air intake port in the processed product receiver, the outside air flow path is switched from the main flow portion to the sub flow portion. A hot-air roasting processing apparatus, characterized in that a flow path switching means is provided .
(2) The container body is an integrally molded product made of transparent heat-resistant glass, and the lower part thereof is a tapered part whose inner diameter gradually decreases toward the lower end opening part, and a flange part is provided on the outer periphery of the upper end of the container body. The hot-air roasting apparatus according to (1), wherein the hot-air roasting apparatus is formed.
(3) The lid member is a plate-like structure with a ceramic coating on the surface of a metal substrate, and a closed position for sealing the lower end opening of the container body and an open position for fully opening the lower end opening. The hot-air roasting apparatus according to (2), wherein the hot-air roasting apparatus is movable between the two.
(4) An air supply chamber in which the upper end portion of the nozzle is connected in communication and a container connection portion that houses the air supply chamber and holds the roasting container at the lower end portion are provided from the nozzle into the roasting vessel. An exhaust chamber for guiding the injected hot air to the exhaust duct,
The container connecting portion includes a fixed frame to which an upper end surface of the container main body is addressed, and a movable frame that is opposed to the fixed frame via a flange portion of the container main body and is spring-biased toward the fixed frame. The hot-air roasting apparatus according to any one of (1) to (3) above,

Claims (6)

A roasting container into which a processed product to be roasted is charged, hot air generating means for generating hot air to be supplied into the roasting container, and hot air generated by the hot air generating means in the roasting container A roasting device comprising a plurality of nozzles for spraying,
The roasting container is composed of a container body whose upper and lower ends are open, and a lid member that opens and closes its lower end opening.
The nozzle includes an upstream pipe portion arranged at equal intervals around the axis parallel to the axis of the container body, and a lower end of the container body from the axis of the upstream pipe portion continuously to the upstream pipe portion. A bent pipe having a downstream pipe bent obliquely downward toward the peripheral edge of the opening,
The upper end of the upstream pipe portion is a hot air inlet into which hot air from the hot air generating means flows,
The downstream pipe portion is directed in a direction intersecting a plane including the axis of the container main body and the upstream pipe portion, and a lower end thereof is a hot air injection port facing a peripheral edge portion of a lower end opening of the container main body. A hot-air roasting apparatus, characterized by The container body is an integrally molded product made of transparent heat-resistant glass, and the lower part thereof is a tapered part whose inner diameter is gradually reduced toward the lower end opening part, and a flange part is formed on the outer periphery of the upper end of the container body. The hot-air roasting apparatus according to claim 1, wherein: The lid member is a plate-like structure having a ceramic coating on the surface of a metal substrate, and is between a closed position for sealing the lower end opening of the container body and an open position for fully opening the lower end opening. The hot air roasting apparatus according to claim 2, wherein the apparatus is movable. An air supply chamber in which the upper end portion of the nozzle is connected in communication, and a container connection portion that houses the air supply chamber and holds the roasting container at the lower end portion are injected from the nozzle into the roasting vessel. An exhaust chamber for guiding hot air to the exhaust duct,
The container connecting portion includes a fixed frame to which an upper end surface of the container main body is addressed, and a movable frame that is opposed to the fixed frame via a flange portion of the container main body and is spring-biased toward the fixed frame. The hot-air roasting apparatus according to any one of claims 1 to 3, wherein the hot-air roasting apparatus is provided. The hot air generating means comprises a blower and an air heater,
A shelf board is provided below the container body, and an outside air intake port communicating with the suction port of the blower is formed on the shelf board at a position directly below the container body.
A process that is roasted when the bottom part is provided with a portable processed material receiver that has air permeability and is arranged in a fitted state on the outside air inlet, and the lower end opening of the container body is opened. The hot-air roasting treatment apparatus according to any one of claims 1 to 4, wherein an object falls and is accommodated in the processed material receptacle from the container main body. The air inlet and the outside air inlet of the blower are communicated by an air intake duct,
The intake duct includes a main flow portion that directly communicates with the blower from the outside air intake port, and a secondary flow portion that communicates with the blower from the outside air intake port through an air filter,
In the intake duct, when the roasted processed product is air-cooled by the outside air drawn into the outside air intake port in the processed product receiver, the outside air flow path is switched from the main flow portion to the sub flow portion. The hot air roasting apparatus according to claim 5, further comprising a flow path switching means.

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