JP2001314745A - Powder heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder roaster in which the deposition of powder in a kiln or on an agitating plate, or the agglomeration of the powder is prevented. SOLUTION: This heater is provided with a cylindrical kiln 2, a gas burner 3 for heating the kiln 2, the gear mechanism 12 and reduction-gear mechanism 13 for rotating the kiln 2 by an electric motor 4 and the opening 36 and closing plate for supplying the powder being a raw material to the flat plate 33 of the kiln 2. An opening for discharging the heated powder, a movable shutter 34 and a fixed plate 35 are furnished to the flat plate of the kiln, a second rotating shaft 16 extending in the direction of the center of rotation of the kiln is formed in the kiln 2, plural agitating plates 18 for agitating the powder are provided to the second rotating shaft 16, and at least any of the agitating plates 18 is used as a movable agitating plate 22 with the angle changeable with a mounting shaft extended orthogonally to the rotating shaft as the center. A third rotating shaft 19 for changing the direction of the movable agitating plate 22 and gears 20 and 21 are furnished in the second rotating shaft 16, and an electric motor 24 for driving the third rotating shaft 19 and gears 20 and 21 and gears 23 and 25 are provided on the second rotating shaft 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder heating apparatus for heating powder, and more particularly to a powder heating apparatus for heating powdery substances such as cereals and fish meat, other foods, medicines, pharmaceuticals, and cement. The present invention relates to a powder heating apparatus capable of heating uniformly without performing heating. In the following description and the appended claims, the concept of powder is used to include particles.

[0002]

2. Description of the Related Art Hitherto, as a device for roasting foods such as cereal powder, a fluidized dryer has been known.

[0003] In this fluidized dryer, hot air is blown from below the grain raw material to lift the grain and fluidize it. As a result, the raw material is rapidly heated while being stirred, and efficiently dried with energy saving and hygiene. Hot air is circulated while taking in fresh air.

[0004] This apparatus is classified into a batch type in which the raw material is charged, roasted and taken out of the product, and a continuous type in which the raw material is continuously supplied, heated and the product is continuously taken out. Since roasting requires a heating time of at least several minutes, a continuous type is not suitable, and a batch type is suitable.

Considering roasting of cereal raw material, if the cereal raw material is granular, the cereal can flow in the drying cylinder and keep a floating state at all times. Not required.

On the other hand, when the grain raw material is powdery, it is light and has a small interval to prevent the raw material from being scattered. Dried and roasted. If the wind speed of the hot air varies depending on the location during the heating, the powder does not float and accumulates at a location where the wind speed is slow, for example, on the wall surface of the drying cylinder, which makes it difficult to perform uniform heating. After roasting, the flour stirred by hot air is collected using a cyclone. In this case, if the particle size is small, the size of the cyclone equipment is gradually increased, and if the particle size is still insufficient, the size of the cyclone equipment is further increased. For fine powders that cannot be collected yet, there is a problem that the equipment becomes large, such as adding a collection equipment by Loff.

In any case, the thermal efficiency is higher than that of the rotary roaster, but the equipment cost is high due to fluidization, and it is difficult to produce uniform hot air. There is a problem that it is not suitable. <Air-flow dryer>
The flash dryer is called a flash jet dryer, and is a flash dryer that uses a high-temperature jet stream and has extremely high drying efficiency. This equipment is characterized by being able to disperse the dried product to a single particle state due to high-pressure hot air and to keep the product temperature low because drying is performed instantaneously.

[0008] However, this type of dryer has a very short processing time of several seconds and requires high equipment costs. For this reason, it takes a long time for heating, is large in production volume, and is not suitable for manufacturing low-cost roasted products with low production costs.

[0009]

When powders of 500 μm or less produced from plants, animals, minerals, or chemicals are heated for a long time, the internal components of these powders are heated as the particle size becomes smaller. In addition to dissolution, denaturation, and gelatinization of the components, the particles adhere to each other and aggregate due to static electricity or moisture movement inside the particles, and uniform heating is easy because they adhere to the heating container. is not.

An example of roasting of cereal flour by a frying pan system and a rotary roasting apparatus will be described. <Frying pan method> Grain powder was put into a frying pan having a metal surface processed with a fluororesin, and the frying pan was heated by a weak gas fire while being shaken back and forth and right and left.

After 2 minutes, the metal surface of the frying pan is 80
° C, the temperature of the flour increased, and the starch in the flour began to gelatinize under the influence of temperature and internal moisture. Moisture inside the grain flour moves and adheres to the surface,
As the flour adhered to each other, the flour began to adhere to the metal surface.

After 6 minutes, the metal surface of the pan is 12
At 0 ° C., the attachment became even worse, leading to the attachment of cereal flour to 4/5 of the body surface of the frying pan, with the remaining flour curling and agglomerated.

Thereafter, heating was continued until the metal surface reached 190 ° C., but adhesion of the flour to the metal surface and agglomeration continued, and the flour gradually discolored.

Thus, it has been found that the flour cannot be stirred even if the frying pan is shaken only in the horizontal direction during heating. <Rotary roasting machine> Next, cereal flour was roasted using a cylindrical kettle having an elliptical cross section.

In this kettle having an elliptical cross section, the flour put in the kettle is lifted upward by the rotation of the kettle, so that sufficient stirring can be expected. However, when the kettle is heated, the starch inside the grain will have a temperature and internal Gelatinization started under the influence of moisture, and they became weak but adhered to each other. As a result, the grain flour starts to adhere to the inner wall surface of the kettle in the same manner as in the above-mentioned frying pan method, and adheres to the entire inner wall of the rotating kettle with the passage of time. Was. The color of the powder changed from white to light white, light brown, and brown. Further, the powder that did not adhere to the inner wall of the kettle was rounded as in the frying pan method, the size thereof was increased, and the powder was aggregated.

For this reason, the temperature of the powder adhering to the inner wall of the pot is high, so that the roasting proceeds. However, the temperature of the powder far from the wall surface is low and the roasting is delayed.

Further, the aggregated powder turned darker brown than the surrounding powder, and the roasting proceeded more.

As a result, it became clear that the conventional roaster could not sufficiently stir due to the adhesion of the powder, making it difficult to perform uniform and uniform roasting. <Roasting Machine with Stirring Plate> Therefore, in order to sufficiently stir the powder, a roasting machine was manufactured in which the sectional shape of the kettle was cylindrical and a stirring plate was attached on a rotating shaft inside the kettle.

This roasting machine aims to eliminate the adhesion phenomenon in which the powder inside the pot adheres to the inner surface of the pot and the agglomeration of the powder by rotating the stirring plate, and to scrape off and grind the adhering powder. Although the stirring plate was rotated faster than the rotation speed of the kettle during roasting, problems such as partial adhesion of the powder inside the kettle and insufficient stirring were found.

That is, since the stirring plate is slightly away from the inner wall surface and the mirror surface of the pot, powder may adhere to the non-contacting inner wall portion of the pot, or the front and back surfaces of the stirring plate, the mounting portion, or the rotating shaft inside the pot. May adhere to the powder. For this reason, it turned out that there existed a problem that these adhered powders peeled off during heating and were mixed with the raw material powders during roasting, and the quality was deteriorated.

The present invention has been made in view of such a problem, and a powder roasting apparatus capable of preventing the powder from adhering to the inside of the kettle or the stirring plate and preventing the powder from agglomerating. The purpose is to provide.

[0022]

According to a first aspect of the present invention, there is provided a powder heating apparatus according to the first aspect of the present invention, wherein the powder heating apparatus is inserted into the kettle together with the powder. A stirring ball for heating and stirring the powder is stored.

According to the powder roasting apparatus of the first aspect of the present invention, since the stirring ball is introduced into the pot, the stirring ball stirs the powder with the rotation of the pot, and the powder inside the pot is roasted. Since the stirring ball comes into contact with the wall surface, the powder does not adhere to the inside of the pot, so that the agglomeration can be prevented. The powder is prevented from adhering to the inner wall portion inside the kettle, and the carbonized powder is prevented from mixing with the heated product. Here, the concept of powder includes a granular material.

According to a second aspect of the present invention, there is provided a powder roasting apparatus according to the first aspect, wherein the pot has a layer of a far-infrared radiating substance formed on an inner surface thereof, and the stirring is carried out. The ball is characterized in that it is either a metal body or a far-infrared radiating substance or a metal body coated with a far-infrared radiating substance.

According to the powder roasting apparatus of claim 2 of the present invention, when the powder is put into the pot and heated and roasted, far-infrared radiation is emitted from both the heated pot and the stirring ball. Since not only heat conduction heating but also radiation heating by far-infrared rays act, the inside of the powder raw material can be heated in a short time.

According to a third aspect of the present invention, there is provided the powder heating apparatus according to any one of the first and second aspects, wherein the shuttle has a cylindrical shape, and is provided inside the shuttle in a rotating direction of the shuttle. An extended rotating shaft is provided, and a stirring plate for stirring the powder and the stirring ball is provided on the rotating shaft inside the kettle.

According to the powder roasting apparatus of the third aspect of the present invention, the stirring plate is provided on the rotating shaft inside the kettle.
In addition to the effect of 2, the powder is effectively stirred by rotating the kettle and the stir plate in the forward and reverse directions, and stir balls are formed on the inner wall surface of the kettle, the rotating shaft surface, or the front and back surfaces of the stir plate. Due to the contact, the powder does not adhere to these portions, and it is possible to continuously produce uniformly heated good-quality powder while preventing powder agglomeration. Further, the powder is prevented from adhering to the rotating shaft and the front and back surfaces of the stirring plate, and the carbonized powder is prevented from being mixed with the heated product.

The powder heating apparatus according to a fourth aspect of the present invention is the powder heating apparatus according to any one of the first to third aspects, wherein the pot has a cylindrical shape, and the powder as a raw material is provided on one flat plate portion of the pot. A feeding part for feeding the body, a discharge part for discharging the powder after heating is provided on the other flat plate part of the kettle, a rotary shaft extending in the axial direction of the kettle is extended inside the kettle, A plurality of stirring plates for stirring the powder and the stirring ball are provided, and at least one of the stirring plates is a movable stirring plate that can change its angle around a mounting axis extending in a direction orthogonal to the rotation axis. An angle adjusting mechanism for changing the direction of the movable stirring plate is provided inside the rotating shaft, and a driving unit for driving the angle adjusting mechanism is provided on the rotating shaft.

According to the powder heating apparatus of the present invention, the movable stirring plate is attached to the rotating shaft, and when the powder of the heating raw material is charged into the inside of the kettle, the powder is supplied from the charging section for charging the powder. The angle of the movable stirring plate can be adjusted so that the charged powder spreads over the entire pot. When the powder is removed after heating, the heated powder can be moved to the discharge side by changing the direction of the movable stirring plate. It is possible to take out the heated powder that has been heated.

According to a fifth aspect of the present invention, there is provided the powder heating apparatus according to the second to fourth aspects, wherein the stirring ball and the heated powder are sorted into a discharge portion of the kettle. Is provided.

According to the powder heating apparatus of the fifth aspect of the present invention, the heated powder and the stirring ball are discharged when the powder is discharged from the kettle, and the roasted product and the stirring ball are sieved after roasting. Since the roasted product and the stirring ball can be separated by the sorting means, the taken out stirring ball can be re-introduced into the pot together with new powder.

According to a sixth aspect of the present invention, there is provided the powder heating apparatus according to the second aspect, wherein the pot has a non-cylindrical shape, and the powder as the raw material is provided on one flat plate portion of the pot. Forming a discharge section for discharging heated powder on the other flat plate section of the cooking pot, and moving the powder from the charging section to the discharge section inside the cooking pot. And a plurality of means for inhibiting passage of the stirring ball are provided.

According to the powder heating apparatus of claim 6 of the present invention, since means for separating the stirring balls and the powder are provided inside the kettle, the powder is transferred from the input portion to the discharge portion by rotation of the kettle. As it moves, the powder is sieved and moves.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a powder roasting apparatus as a powder heating apparatus according to an embodiment of the present invention will be described with reference to the drawings. <First Embodiment> FIG. 1 shows the configuration of a powder roasting apparatus according to a first embodiment.

The powder roasting apparatus 1 is roughly composed of a roasting pot 2 having a circular cross section and a cylindrical shape, a gas burner 3 as a heating means, and a rotating device 5 having an electric motor 4.

The roasting pot 2, the gas burner 3, and the rotating device 5
The housing 6 is provided on each of the housings 6.
Has a swing fulcrum 7 and can be tilted about the swing fulcrum 7 by the expansion and contraction of the hydraulic cylinder 8. Rollers 10 that support rotating shafts 9 protruding from both ends of the roasting pot 2 are provided on side walls 6A and 6B on both sides of the housing 6.
Are provided respectively. An arm 11 for mounting the electric motor 4 is attached to one side wall 6A, and the electric motor 4 and the gear mechanism 1 are mounted on the arm 11.
2. An arm (not shown) for supporting the reduction gear mechanism 13 is mounted. The power of the electric motor 4 is transmitted to the roasting pot 2 and the second rotating shaft 16 via the gear mechanism 12 and the reduction gear mechanism 13.

That is, the power of the electric motor 4 is
2 is transmitted to the gears 13A and 13B of the reduction gear mechanism 13 via the rotation shaft 2 and fixes the gears 13B and 13C.
Via D, it is transmitted to the gear 13E. Since the gear 13E is fixed to the rotating shaft 9, the rotating shaft 9 rotates on the roller 10. The second rotating shaft 16 is rotatable with a gap in the center of the gear 13E and is supported by a bearing 17 in the rotating shaft 9. Rotate quickly. The stirring plate 1 rotatably held from the second rotating shaft 16 by the rotation of the second rotating shaft 16.
8 rotates integrally with the second rotation shaft 16.

First, a case where both the stirring plates 18 and 22 are of a fixed plate type will be described. When the second rotating shaft 16 is rotated in the forward direction (the rotation direction in which the powder 40 is moved to the input unit side), the force acting in the input unit direction and the inclination The hydraulic cylinder 8 is operated to balance the force acting in the direction of the discharge section, and the powder 40 and the stirring ball 41 are rotated and held at a predetermined location. On the other hand, when rotated in the opposite direction, the powder 40 and the stirring ball 41 move toward the discharge section. As described above, by giving the rotation operation and the tilting operation, the moving direction of the powder 40 can be controlled during roasting.

Next, a case where the stirring plate 22 is movable will be described. In this case, the hydraulic cylinder 8 is unnecessary.

A third rotating shaft 19 is further provided inside the second rotating shaft 16, and the third rotating shaft 19 is
The direction of the movable stirring plate 22 can be changed via 0 and 21. The third rotating shaft 19 is rotatably held at an end of the second rotating shaft 16, and the second rotating shaft 1
The gear 23 is provided at a portion protruding from the sixth gear 6. An electric motor 24 is attached to an end of the second rotating shaft 16, and a gear 25 is fixed to an output shaft of the electric motor 24. The power of the electric motor 24 is obtained from a power supply circuit 27 via a slip ring 26 fixed to the second rotating shaft 19.

The direction of the movable stirring plate 22 is changed by the rotation of the electric motor 24. In other words, the power supply circuit 27 is controlled by a control panel (not shown) so that the stirring plates 18 and 22 are turned from each other so as to form a "C" shape when the raw materials are charged, and are supplied from the charging section 28 of the kettle 2. The raw material powder 40 and the stirring ball 41 are mixed with the stirring plate 18 and the stirring plate 2.
2 so as to surround it. Next, at the time of discharging the raw material, the raw material is turned so as to be inclined in a screw shape, and is moved to a position surrounded by the adjacent stirring plates 18 and 22. By sequentially repeating the operation of the movable stirring plate 22, the discharge is performed from the discharge portion 29 of the shuttle 2 to the transfer duct 30. The power supply circuit 27 controls the direction and amount of rotation of the electric motor 24 by a control panel (not shown).

A temperature sensor 31 such as a thermistor for measuring the temperature inside the pot is attached to the stirring plate 18, and the current measured by the temperature sensor 31 of the stirring plate extends along the inner wall of the second rotating shaft 16. The signal passes through the wiring (broken line) and is output to the measuring device 32 via the slip ring 26 (see FIG. 1).
The measurement current is converted into a data signal by the measuring device 32 and transmitted to the control panel, and the heating power of the gas burner 3, the rotation amount of the kettle 2 and the movable stir plate 22 are adjusted so as to obtain a predetermined roasting degree. Will be

The roasting material input section 28 and the discharge section 2 of the kettle 2
Reference numeral 9 denotes a flat plate portion 33 of the shuttle 2, a movable shutter 34, and a fixed shutter 35.
6, 37 and 38 are formed. Movable shutter 34
Is rotated by the expansion and contraction of the cylinder rod of the hydraulic cylinder 39. The fixed shutter 35 is fixed to the housing 6. The movable shutter 34 is positioned so that the openings 37 and 38 do not coincide with each other when the kettle 2 rotates, and when the roasting raw material powder 40 and the stirring balls 41 are charged or discharged.
The movable shutter 34 so that the openings 37 and 38 coincide.
To rotate. At this time, the hydraulic cylinder 39 of the movable shutter 34 is expanded and contracted when the roasting raw material powder 40 and the stirring ball 41 are charged or discharged by the above-described control panel, so that the openings 36, 37, and 38 are aligned.

The fixed shutter 35 of the charging section 28 is provided with a duct 42 for supplying the roasted raw material powder 40 and the stirring balls 41 to the opening 38, and the fixed shutter 35 of the discharging section 29 is provided with the opening 38. The duct 30 for discharging the roasted raw material powder 40 and the stirring balls 41 is attached to the roaster.

The stirrer ball 41 of this embodiment has a cylindrical shape so that the contact surface becomes as large as possible in order to peel off the powder 40 adhered to the kettle 2 and, further, does not cause an impact when it comes into contact with a wall surface or a door portion. The shape is a rice bale shape or capsule shape combining a shape and a sphere.

Above the duct 30, the roasted raw material powder 4
There is provided a mesh 43 for separating the powder and the stirring balls 41. The raw material powder 40 dropped on the mesh 43 falls into the duct 30, and the stirring balls 41 are conveyed to a conveyor (not shown) arranged outside the duct 30. Is done. This conveyor extends to the duct 42 on the charging section 28 side, and the discharged stirring balls 41 are charged into the duct 42.
A vibrator 44 is provided on the mesh 43 so as to vibrate.

The upper part of the housing 6 has an exhaust port 45.
Is open.

A screw 46 is arranged at the bottom of the duct 30, and the roasted raw material powder dropped into the duct 30 is introduced into the storage from the discharge guide plate 47 by the suction device 48. The discharge port is closed by the discharge guide plate 47 of the duct 30, and since the roasted raw material powder is sucked and sent by the suction device 48, the fine dust and the like are prevented from diffusing into the atmosphere. Has become.

Reference numeral 49A denotes a brush provided on the stirring plates 18 and 22, and 49B denotes a brush ring provided on the second rotating shaft 16, and roasted raw material powder adheres to the second rotating shaft 16 and the flat plate portion 33. To prevent carbonization.

The powder roasting apparatus according to the present embodiment comprises a kettle 2 having a cylindrical shape, and a gas burner 3 for heating the kettle 2.
(Heating device), a gear mechanism 12 and a reduction gear mechanism 13 (rotating device) for rotating the shuttle 2 by the electric motor 4 (drive motor), and a flat portion 33 (flat portion) of the shuttle 2 Opening 36 and fixed shutter 3 for feeding
5, an opening for discharging the powder after heating, a movable shutter 34 and a fixed plate portion are provided in the flat plate portion of the kettle.
A second rotating shaft 16 (rotating shaft) extending in the direction of the rotation center of the kettle is formed inside, and a plurality of stirring plates 18 for stirring the powder are provided on the second rotating shaft 16, and at least one of the stirring plates 18 A movable stirring plate 22 whose angle can be changed about a mounting shaft extending in a direction perpendicular to the rotation shaft, a third rotation shaft 19 for changing the direction of the movable stirring plate 22 inside the second rotation shaft 16, and gears 20 and 21. (Angle adjusting mechanism), and the third rotating shaft 19, the electric motor 24 for driving the gears 20 and 21, and the gears 23 and 25 (driving means) are provided on the second rotating shaft 16. When the powder of the heating raw material is charged, the angle of the movable stirring plate 22 can be adjusted so that the powder charged from the opening 28 for charging the powder spreads over the entire pot 2. When the powder is to be taken out after heating, the heated powder can be moved to the discharge section 29 by changing the direction of the movable stirring plate 22, so that the continuously heated powder can be taken out.

At this time, the stirring ball 41 is introduced and discharged together with the roasting raw material powder 40, and the powder 40, which is to be a roasted product after roasting, and the stirring ball 41 are sieved with a mesh 43 to form the roasted product powder 40. When the stirring balls 41 are separated from the stirring balls 41 and the new roasting raw material powders 40 are again introduced into the inside of the kettle, the inner walls of the inside of the kettle 2, the rotating shaft 16 or the front and back surfaces of the stirring plates 18 and 22 are formed. The powder is prevented from adhering, and the carbonized powder is prevented from being mixed with the roasted product powder 40. <Second Embodiment> FIG. 7 shows a roasting apparatus 50 which is a powder heating apparatus according to a second embodiment. This roasting device 50
Is for roasting the roasting raw material powder 51 by a batch method, and the kettle 52 has an elliptical shape as shown in FIG. Rotating shafts 53 protrude from both sides of the shuttle 52, and are rotated by an electric motor 54, pulleys 55 and 56, and a belt 57. The rotation shaft 53 is supported by a pair of rollers 60 provided above the support frames 58 and 59.

A gas burner 61 is disposed below the roasting pot 52 and at a position directly below the roasting pot 52. Below the roasting pot 52, a mesh type conveyor 63 for sifting the roasting raw material powder 51 and the stirring balls 62 is arranged, and the conveyor 63 is movable in the direction of arrow 64 in the figure. Conveyor 6
3, a duct 65 is provided below the conveyor 6.
The roasting raw material powder 51 sieved in 3 is received. An electric motor 6 is provided at the bottom of the duct 65.
A screw 67A rotated by 6 is provided,
The roasted raw material powder 51 dropped into the duct 65 is stored in the storage tank 67B.
To be sent to

A spline groove 68 is formed at the left end of the rotary shaft 53 in the drawing, and a clutch plate 69 is engaged with the spline groove 68 so as to be slidable in the axial direction. A groove 71 into which the end of the connecting lever 70 is inserted is formed on the peripheral surface of the clutch plate 69. The lever 70 has a rotation fulcrum at the center thereof.
When operated in the direction, the clutch plate 69 slides in the direction of the arrow 73. An opening 74 is formed in a side surface of the clutch plate 69, and a connecting pin 75 is inserted into the opening 74. The connecting pin 75 is provided on the connecting ring 76 and is urged from the connecting ring 76 toward the clutch plate 69.

The connecting ring 76 can receive a rotational force when the connecting pin 75 is connected to the clutch plate 69.
When detached from the clutch plate 9, the clutch plate 69 is detached from the clutch plate 69 and becomes freely rotatable.

The connecting ring 76 rotates together with the clutch plate 69 when the roasting pot 52 rotates, and has an opening 77 for feeding raw materials into the roasting pot 52 (see FIG. 8).
When the roasting pot 52 stops just above or directly below, the connection with the clutch plate 69 is released, and the lid 78 (see FIG. 8) of the opening 77 can be opened and closed.

A brake pad 79 is arranged on the peripheral surface of the connection ring 76, and the brake pad 79 can fix and release the connection ring 76 by a brake lever 80.

That is, when the connecting pin 75 is disengaged from the clutch plate 69 by the lever 70 and the brake lever 80 is rotated in one of the circumferential directions of the connecting ring 76, the brake pad 79 fixes the connecting ring 76, Link 81
Can be operated.

The link 81 is connected to the flange 82 of the connecting ring 76 and the hinge shaft 83 of the lid 78 as shown in FIG.
The lids 78, 78 are closed, and the lids 78, 78 are opened by turning in the rotation direction 85 of FIG.

The hinge shaft 83 is fixed to the covers 78, 78 so as to be able to rotate integrally with the covers 78, 78.

According to the roasting device 52, the clutch plate 69 and the connecting ring 76 are connected by the lever 70 with the lids 78, 78 of the roasting pot 52 positioned directly above and the electric motor 54 stopped. When the brake lever 80 is operated and the lids 78, 78 are opened, the roasted raw material powder 51 and the stirring balls 62 can be charged. After the powder 51 and the stirring ball 62 are charged, the lids 78, 78 are closed by operating the brake lever 80, and the clutch plate 69 and the connecting ring 76 are operated by the lever 70.
And are linked. Thus, the roasting pot 52 can be rotated with the lids 78, 78 closed, and roasting heating is performed by rotation of the electric motor 54 and ignition of the gas burner 61.

At this time, the roasted raw material powder 51 and the stirring ball 6
2 rotate integrally, and the central portions of the flat plate portions 52A and 52B inside the roasting kettle 52 have a shape protruding slightly toward the central portion, and both ends of the roasting kettle 52 have flat central portions. Since the short diameter and the long diameter are slightly larger than the bean portion, the stirring ball 62 is sufficiently spread and stirred at both ends of the kettle, so that the roasted powder adheres to the flat plate portions 52A and 52B and agglomerates. Is prevented.

After a lapse of a predetermined time, the electric motor 54 is stopped at a position where the lids 78 and 78 face directly downward, the clutch plate 69 and the connection ring 76 are separated by the lever 70, and the brake lever 80 is operated. 78 opens,
The roasting material powder 51 and the stirring ball 62 can be taken out.

The roasted raw material powder 51 and the stirring ball 6 taken out
2 is sieved by conveyor 64 and duct 6
The roasting raw material powder 51 falls into 5, and the stirring balls 62 are mounted on the conveyor 64. The stirring balls 62 mounted on the conveyor 64 are mixed with the raw material powder to be roasted again, and
Can be put in

As for the opening / closing mechanism of the lid of the roasting pot 52, an example of a manual type has been described, but an automatic type may of course be used. That is, the connecting ring 7 is provided in the vicinity of the rotatable
6 is rotatably held, and the connecting ring 76 and the lid 7
8 and 78, as shown in FIG. 8, the links 81 and 81 are linked, and the cylinder side of the electric cylinder which expands and contracts by electric control is fixed to the rotating shaft 53, and the cylinder rod side of this electric cylinder is A ring-shaped conductive portion is provided on the peripheral surface of the rotating shaft 53 so as to be linked to the connecting ring 76, and a contact for supplying power to the ring-shaped conductive portion is provided on the floor side. With this configuration, when power is supplied from the contact to the electric cylinder, the connection ring 76 is rotated to turn the lid 78,
78 can be opened and closed. Further, the cylinder rod of the above-described electric cylinder may be directly linked to the links 81. This electric cylinder and link 81, 81
May be configured on the rotating shafts 53 on both sides of the roasting pot 52. <Third Embodiment> FIG. 9 shows a roasting apparatus as a powder heating apparatus according to a third embodiment.

In the roasting apparatus 100, a non-cylindrical pot 101 having an elliptical cylindrical shape is disposed in a housing 102, and is heated by a gas burner 103 attached to a lower portion of the housing 102. In addition, pot 1
The non-cylindrical shape of 01 may be a hexagonal shape or the like. On the inner wall surface of the pot 101, a layer or a cylinder of a far-infrared radiating substance (for example, aluminum oxide, enamel, etc.) may be provided. Pot 1
A plurality of wire nets 104 made of, for example, stainless steel are provided inside 01. This net 1
No. 04 has a stitch that does not pass through the stirring ball 105 but passes only the powder 106 serving as a roasting raw material. Here, as described above, the concept of powder includes granules, and it is needless to say that the granules can be used as the raw material for roasting as the powder 106. Flat plate part 10 on both sides of shuttle 101
As shown in FIG. 10, openings 109A and 109B for inputting and discharging the powder 106 are formed in the openings 7 and 108, and a wire mesh net made of stainless steel is also attached to the openings 109A and 109B. ing. These openings 109A, B
Is opened and closed by movable shutters 110A and 110B.

The movable shutters 110A and 110B are circular, and have openings 111A and 111B of substantially the same shape and size as the openings 109A and 109B. The protrusions 110C and D of the movable shutters 110A and 110B
Are linked to the cylinder rods 113A and 113B of the hydraulic cylinders 112A and 112B having fixed cylinder parts by pins (not shown). The movable shutters 110A and 110B slide and rotate along the flat plates 107 and 108 of the shuttle 101 as the cylinder rods 113A and 113B expand and contract.

Outside the movable shutters 110A and 110B, circular fixed shutters 114A and 114B fixed to the housing 102 are provided in contact with the movable shutters 110A and 110B. In the fixed shutters 114A and B,
Openings 1 of substantially the same shape and size as the openings 111A, B of the movable shutters 110A, B and the openings 109A, B of the shuttle 101.
15A and 15B are formed respectively.

A duct 117 for introducing the raw material powder 106 is provided around the opening 115A of the fixed shutter 114A located on the side of the charging section 116 for the roasted raw material powder 106.

A duct 1 for discharging the roasted product powder 106 is provided around the opening 115B of the fixed shutter 114B located on the discharge portion 118 side of the roasted raw material powder 106.
19 are provided.

Rotating shafts 120 and 121 protrude outside the flat plate portions 107 and 108 of the shuttle 101. Rotary shaft 12
Reference numerals 0 and 121 are rotatable with respect to the fixed shutters 114A and 114B and the movable shutters 110A and 110B.
The rotating shafts 120 and 121 are rotatably held by bearings 122 and 123 fixed to the side surface of the housing 102. A temperature sensor 124 composed of a thermistor or the like is provided in the rotation shaft 121 on the discharge unit 118 side.

The temperature sensor 124 sends a detection signal of the ambient temperature inside the pot 101 to the controller 129, and the controller 129 compares the detection signal with an appropriate temperature set value of the pot 101 to adjust the heating power of the gas burner 103.
Of course, a pipe or the like for detecting an odor due to roasting is further arranged in the rotating shaft 121, an odor sensor or the like is installed at the end of the pipe to measure the degree of roasting, and the detection signal of the odor sensor is set to an appropriate set value. In comparison, control of the thermal power of the gas burner 103 and removal of the roasted product may be performed.

A pulley 125 is fixed to the rotating shaft 120 on the input section 116 side, and the pulley 125 is connected via a belt 126 to the pulley 12 fixed to the output shaft of the electric motor 127.
8 to receive power.

The rotation of the electric motor 127 is controlled by the controller 129 described above. The electric motor 127 is
Support arm 128 formed on the side of housing 102
Mounted on top.

The controller 129 includes the gas burner 103
Control at least the hydraulic cylinders 112A and 112B and the electric motor 127. That is, when starting roasting, the pot 1
The heat quantity per unit time and the remaining heat time of the gas burner 103 and the number of rotations of the electric motor 127 necessary for uniformly preheating the heating chamber 01 and the stirring balls 105 are set. Based on these, the ignition of the gas burner 103 and the rotation of the electric motor 127 are set. Do.

When the preheating is completed and the raw material powder 106 is charged, the pot 101 is rotated to open the opening 109 of the pot 101.
A coincides with the opening 115A of the fixed shutter 114A.
Stop the cylinder rod 11 of the hydraulic cylinder 112A.
2 to control the opening 111A to make the openings 115A, 109
Match A. On the other hand, at this time, the fixed shutter 11
The cylinder rod 113B of the hydraulic cylinder 112B is controlled so as not to coincide with the opening 115B of 4B.

When a predetermined amount of the raw material powder 106 is charged into the pot 101, the cylinder rod 1 of the hydraulic cylinder 112A
By controlling 13A, the opening 111A is positioned so that the opening 111A does not coincide with the opening 115A, and the input unit 116 is closed.

After closing the charging section 116, the gas burner 103
Generates a predetermined amount of heat per hour.
The ignition control is performed with reference to the temperature detection data of No. 4, and the electric motor 127 is rotated a predetermined number of times.

When the roasting is completed after a predetermined time,
The ignition of the gas burner 103 is stopped, and the hydraulic cylinder 112B is turned off.
By controlling the cylinder rod 113B, the opening 111B is made to coincide with the opening 111B.

As a result, the roasted powder 106 inside the pot 101 can be discharged from the discharge section 118 to the product storage tank 130.

A fulcrum 131 for tilting is provided at the lower part of the center of the housing 102.
Since the hydraulic cylinder 132 is provided on the side of the charging section 116 of the second 02, when the roasted product 106 is taken out,
When the cylinder rod 133 of the hydraulic cylinder 132 is extended, the housing 132 is lowered rightward in FIG.

In this state, when the electric motor 127 is rotated while the gas burner 103 is ignited, the product powder 106 moves to the discharge portion 118 side of the cooking pot 101 because the cooking pot 101 is inclined downward and to the right. When the opening 109B on the discharge section 118 side of the
Emitted from 01.

A plurality of nets 104 are formed in the pot 101, and a stirring ball 105 is provided at a portion partitioned by the nets 104.
Is stored, so that the stirring pot 105 and the powder 106 are selected when the product powder 106 is discharged, and only the roasted powder 106 is taken out to the product storage tank 130 when the product powder 106 is discharged. Become.

Reference numeral 134 denotes an exhaust port provided in the housing 102.

Further, the raw material input section 116 and the raw material discharge section 11
8 is formed on one end and the other end of the body of the shuttle 101 without being attached to the plate portions 107 and 108 of the shuttle 101, so that the plate shutters 107 and 108 and the movable shutter 110
Powder can be prevented from entering the gap between A, B and the fixed shutters 114A, B.

That is, an opening and a lid are provided in the body of the pot 101 between the flat plate portions 107 and 108 of the pot 101 and the net 104 for feeding or discharging the raw material. Attach the net to the opening for

The lids at the openings for inputting the raw materials and discharging the products are opened and closed by using the lid opening and closing mechanism in the second embodiment. That is, the cylinder portion of the electric cylinder is fixed to both ends of the rotating shaft 120, the cylinder rod portion of the electric cylinder is linked to the free end side of the lid, and a pair of ring-shaped conductive plates is provided on the peripheral surfaces of both ends of the rotating shaft 120. Mounting, housing 10
A pair of contacts for supplying power to the ring-shaped conductive plate are attached to the two sides, the contacts are connected to a power supply circuit (not shown) of the electric motor 127 by a relay, and the relay is controlled by a controller 129.

According to this configuration, the controller 129 controls the rotation speed, angular velocity, and the stationary angle of the shuttle 101 when stopped.
Thereby, relay control of the electric cylinder can be performed, and automatic continuous roasting can be performed by a series of sequence programs from raw material input, roasting, and product discharge.

Thus, when the powder 106 is put into the pot 101 and when the product inside the pot 101 is discharged, the flat plates 107 and 108 and the movable shutter 11
It is possible to prevent powder from entering the gaps between 0A and B and the fixed shutters 114A and 114B.

The roasting apparatus 100 according to the third embodiment
According to the above, a plurality of nets 104 are formed inside the pot 102 so that the inside of the pot 102 is partitioned, the stirring balls 105 are stored in the spaces partitioned by the net 104, and the housing 102 can be tilted by the hydraulic cylinder 132. , So that the raw material powder 1
06 can be moved from the charging section 116 to the discharging section 118, and can be uniformly distributed inside the shuttle 102. At the time of discharge, the housing 102 is tilted while rotating the kettle 101, and the charging section 118 is opened, whereby the powder 106 of the roasted product is opened.
Only the product can be taken out to the product storage tank 130.

At this time, since the stirring ball 105 moves inside the pot 101, the roasted powder 106 is prevented from sticking to the inside of the pot 101 and carbonized.
Regulates the movement of the stirring ball 105, so that it becomes unnecessary to separate the stirring ball 105 from the powder, and the production efficiency is improved.

Although the batch type production has been described above, the roasted product near the discharge unit 118 side can be continued without interrupting the roasting by opening the input unit and the discharge unit intermittently. Intermittent production is possible by discharging only the raw material powder 106 and charging new raw material powder 106 accordingly.

Further, if the length of the pot 101 is made sufficiently long and the pot 101 is configured such that the charging section 116 and the discharge section 118 are open, the powder 106 of the raw material can be obtained.
Moves from the charging section 116 to the discharging section 118, thereby enabling continuous production.

Further, when the raw material is granules, the granules are difficult to be aggregated even when stirred, so that the body door (not shown) provided on the pot 101 is opened, the stirring ball 105 is taken out, and the particle size smaller than the particles is reduced. The roasting can be performed in the same manner as the roasting of the powder 106. Of course, in this case, it is needless to say that the particle diameter of the particles is a particle diameter that can sufficiently pass through the mesh of the net 104.

In all of the first to third embodiments, the stirring balls 105 are stored in a separate storage case, especially in the case of powder having a large particle diameter in the powder, since it is less likely to aggregate than powder having a small particle diameter. Then, it is removed from the pot 101, and the pot 101 can be heated and roasted while stirring the pot 101 in a state where only the raw material is charged. Thus, the operation and maintenance of the apparatus can be simplified except for the stirring ball 105.

Further, in order to improve the roasting quality of the particles having a large particle diameter, the first to third embodiments are described in the following.
In each case, the granules and the stirring balls 105 are put in the pot 101 and heated and roasted while stirring. As the pot 101 becomes larger and the amount of charged particles increases, the contact area with the pot 101 decreases, and the amount of heat for heating per unit mass decreases.
Therefore, if you want to finish the product in a fixed time,
01 may be increased, but the number of times of contact with the stirring plates 18 and 22 is increased, so that the particles may be broken. In the case of the elliptical kettle 101, the kettle 101 stays in the long diameter portion due to centrifugal force. Has an upper limit on the rotation speed. In order to solve this problem, if the stirring ball 105 is put and stirred,
Since the contact area increases, the roasting temperature can be reduced and operation can be performed accordingly. As a result, high quality products can be produced. If the roasting temperature is not lowered, the roasting time is naturally shortened and the productivity is improved.

Further, regarding the first to third embodiments,
A cylinder or plate made of a far-infrared ray radiating substance may be mounted inside the pot 101, or the far-infrared ray radiating substance may be sprayed inside the pot 101 made of metal. The stirring ball 105 may be formed of a ceramic far-infrared radiator or a metal stirring ball 1.
05 may be sprayed with a far-infrared emitting material.

[0097] Under such a configuration, when the powder (large and small particles) 106 is put into the pot 101 and heated and roasted, both the heated pot 101 and the stirring balls 105 Radiation of far-infrared rays is performed, and not only heat conduction heating but also radiant heating by far-infrared rays will act,
It is possible to heat the inside of the powder raw material in a short time.

That is, conduction heating takes a long time because the powder 106 is heated by contact with the high-temperature pot 101 or the stirring ball 105 or by an increase in the temperature of the air in the pot 101. Since the radiation electromagnetic waves of 101 and the stirring ball 105 easily penetrate into the powder 106, the powder 10
6 can promote the pregelatinization of the starch inside, and can efficiently shorten the heating time.

As described above, if a layer of a far-infrared ray radiating substance is formed on both the pot 101 and the stirring ball 105, the roasting effect is improved by the far infrared rays emitted from each of the pot 101 and the stirring ball 105. <Fourth Embodiment> FIGS. 11 to 13 show a roasting apparatus (powder heating apparatus) according to a fourth embodiment.

In this roasting apparatus, the roasting pot 210 has a non-cylindrical shape with an elliptical cross section, and has a raw material charging cylinder 225 (charging section) for charging powder as a raw material into one end of the roasting vat 210. An opening 235 (discharge part) for discharging the heated powder is formed at the other end of the roasting pot 210, and the raw material charging cylinder 225 for the powder is provided inside the roasting pot 210. A plurality of wire meshes 234 (means for prohibiting the passage of the stirring ball) that allow the movement from the opening to the opening 235 and prohibit the passage of the stirring ball are provided.

Although the roasting pot 210 has an elliptical cross section in this embodiment, it may have a hexagonal cross section, an octagonal cross section, a spindle-shaped cross section close to an elliptical shape, a cocoon-shaped cross section, or the like.
The rotation center may not be the center of the ellipse, hexagonal or octagonal cross section.

The raw material charging cylinder 225 as a charging section is provided with a screw 227 as will be described later, but any other means may be used as long as it is a means for feeding the raw material.

The roasting apparatus 200 comprises a base 202 mounted on a floor 201 and a panel 2 extending vertically.
03 and 204 are mounted as a pair. Panel 20
The sides of 3, 204 are panels 205, 20 shown in FIG.
6 is attached, and a panel 207 extending in the horizontal direction is attached to the upper portions of the panels 203 and 204. A roasting chamber 208 is formed by the panels 204 to 206 and the panel 207 on the ceiling.

[0104] Inside the roasting chamber 208, a pair of left and right line burners 209 as heating means are provided in parallel with the roasting pot 210 (pot). The roasting pot 210 has an elliptical cross-sectional shape, is disposed in an opening 211 formed in the panels 203 and 204, and has an opening 211 of the roasting pot 210.
A circular L-shaped flange 212 is protruded in the vicinity.
Rotating plates 213 to 218 for supporting the roasting pot 210 at three points are rotatably attached to the panels 203 and 204. The rotating plates 213, 216 support the upper part of the roasting pot 210, and the rotating plates 214, 215, 217, 21
8 supports the lower two points of the roasting pot 210 at the same height.

The rotary plates 213 to 215 are provided with split grooves, and hold a circular rotary plate 219 attached to the end peripheral surface of the roasting pot 210 on the material input side. As a result, the roasting pot 210 is rotated by the rotating plates 213-21.
5, so that it does not come off the groove. The rotating plates 216 to 218 have a flat peripheral edge, and support the circular rotating plate 220 attached near the end of the roasting pot 210 on the product take-out side.

A sprocket gear 221 is fixed to the raw material charging end of the roasting pot 210. The sprocket gear 221 is connected to a drive gear 224 of a motor 223 by a chain 222, and the sprocket gear 221 is rotated by rotation of the motor 223.

Further, the raw material input end portion 210 of the roasting pot 210
In A, a raw material charging cylinder 225 is inserted. The raw material charging cylinder 225 is held by a ring 226 provided at the center of the raw material charging side end 210A of the roasting pot 210.

An opening (not shown) for discharging a gelatinized defective product is formed in the raw material input end 210A. A duct 226A for receiving a defective product is formed around the raw material input end 210A. Duct 22
6A is detachably supported by a support plate 229, and an exhaust port 226 for releasing steam is provided above the duct 226A.
B is formed.

Inside the raw material charging cylinder 225, a coil spring-shaped screw 227 that slides and rotates inside the cylinder is stored. The rotation shaft of the screw 227 is rotated by a motor (not shown) attached to the support plate 229 via a chain mechanism.

A roasting raw material (a mixture of brown rice flour and water) is charged from the hopper 230 into the raw material charging cylinder 225. A stirring plate 231 driven by a stirring motor (not shown) is provided inside the hopper 230, and the stirring plate 231 stirs the roasting material supplied by a separate device (not shown) and puts the roasting material into the material charging cylinder 225. Supply. The hopper 230 is provided with a position sensor 233 such as a limit switch for determining the height position of the roasted raw material.
The input amount of the roasting raw material to be supplied is adjusted based on the above.

After the roasted raw material supplied to the raw material charging cylinder 225 is charged into the raw material charging cylinder 225, the roasted raw material is charged into the roasting pot 210 by the rotation of the screw 227.

A plurality of wire nets 234 are formed inside the roasting pot 210. The above-mentioned stirring balls for stirring the roasted raw material are put into the room separated by the wire mesh 234, and the roasted raw material is prevented from adhering to the inside of the roasting pot and carbonized by the stirring ball. The heated roasted material moves through the wire mesh 234 to the end on the product take-out side.

An opening 23 for taking out the roasted product which has been roasted is provided at the end of the roasting pot 210 on the product takeout opening side.
5 and an opening 236 for discharging defective products. The openings 235 and 236 are formed at a plurality of locations around the roasting pot 210. A wire mesh 237 is attached to the opening 235 so that the above-mentioned stirring balls do not drop. From the wire mesh 237, the roasted product is carried out.

[0114] Around the rotation area of the opening 235, a duct 239 for guiding the roasted product to a conveyor (not shown) for taking out the product is attached. The duct 239 is shown in FIG.
The lower part is open as shown in FIG. An exhaust port 239A is formed in an upper portion of the duct 239, and the steam discharged from the roasting pot 210 is exhausted from the exhaust port 239A. Duct 239 is a stay 204A attached to panel 204
Is fixed detachably to the vertical plate 204B.

The duct 239 has a duct 2 at the end.
40 is detachably attached. At the lower part of the duct 240, an opening is formed for discharging defective products which adhere to the center of the end of the roasting pot 210 and are gelatinized or discolored. An exhaust port 2 for exhausting steam near the end is provided at the upper part of the duct 240.
40A are formed.

In FIG. 11, reference numerals 241 and 242 denote combustion exhaust ports 241 and 242 formed in the upper part of the roasting chamber 208.
A blower (not shown) for supplying air to the line burner 209 is installed on the panel 205.

The end of the base 202 on the product take-out side is supported by a pair of bearings 243.
A hydraulic cylinder 250 for swinging up and down is mounted below the center end of the material input side of No. 02, and the base 202 swings up and down by operating the hydraulic cylinder 250.

Further, the hydraulic cylinder 25 on the base 202
On both sides of 0, support rods for preventing left and right swing are installed.
By oscillating the hydraulic cylinder 250, the raw material in the roasting pan 210 is moved to the product take-out port side while the entire roasting device oscillates. In addition, roasting pot 2 near the discharge section
10, a temperature sensor 260 is installed as shown in FIG. 11, a lead wire is passed through the discharge unit shaft, and the temperature inside the shuttle is measured via a slip ring (rotary connector) attached to the shaft end. can do.

According to the roasting apparatus shown in FIGS. 11 to 13, the raw material is charged by the raw material charging cylinder 225 and the screw 227, and is slid along the peripheral surface of the roasting vat 210 into the roasting raw material charging side. Since there is no lid or the like, there is no change in the amount of the roasted raw material input due to a change in the number of rotations of the roasting pot 210, and by rotating the screw 227 at a constant rotation, a constant amount of the raw material can be input. There is no uneven feeding, and a uniform roasted product can be obtained. Further, since there is no sliding portion, there is no wear or damage, maintenance is easy, and the device is inexpensive and highly reliable.

When the raw material is cereal flour, the screw 2
27 is constituted by a spring, and the raw material is fed by rotating the screw 227, so that the cereal flour is thrown into the roasting pot 210 while rotating on the inner wall of the raw material charging cylinder 225. For this reason, it is prevented that cereal flour adheres and stays on the inner wall of the raw material charging cylinder 225. When the particle size of the raw material is large, in the case of the spring type, there is a case in which the particle is caught between the spring and the inside of the raw material charging cylinder 225 and becomes powder. It shall be a conventional fixed type.

Further, the roasting kettle 21
In order to take out the roasted product from 0, the roasting pot 210
Since there is no lid or the like that slides along the peripheral surface, the manufacturing is simple and the cost is low as described above, and there is no wear or damage to the sliding portion, and maintenance is easy.

However, in this case, since the product take-out port is always open, it is difficult for steam to accumulate in the roasting pot 210, and when the product is not properly determined and rough, the steam in the roasting pot 210 is discharged. Hold down and heat. For this purpose, the product outlet is provided with a take-out mechanism that slides and rotates with the kettle described in the third embodiment to suppress exhaust steam and increase the amount of steam generated in the kettle for heating. it can. This apparatus heats and roasts cereal flour and the like, but can basically heat and roast grains such as brown rice. In this case, roasting can be performed by replacing the coil spring-shaped screw 227 in the raw material charging cylinder 225 with a normal screw, and the continuous heating / roasting of both powder and granules can be performed by the present apparatus. Becomes possible.

In addition, the water present inside the roasting material flour takes off the latent heat of evaporation from the roasting pot 210 and evaporates, so that the powder adheres to the inner wall of the roasting pot 210 or curls into aggregates. However, since the roasting pan 210 is rotating, the powder adhered to the inner wall of the roasting pan 210 is scraped off by the rotating stirring ball at the same time, and is uniformly heated without agglomeration. You.

Further, in the vicinity of the center of rotation at both ends of the roasting pot 210, powder is partially adhered because the stirring balls are hard to contact, and the steam generated from the raw material powder accumulates inside the roasting pot 210. So that the flour continues to be heated and eventually gelatinizes,
A thin film is generated on the roasting pot 210, and the gelatinized film turns brown in time, and finally peels off and mixes with the product, resulting in a defective product. On the side, the rejection chamber 226B for the defective product of the gelatinized film and the duct are formed, so that the gelatinized film adhered to the side wall of the rejection chamber is discharged separately from the product take-out port, and the quality of the defective product is high. A roasted product is made.

[0125]

According to the powder heating apparatus of the first aspect of the present invention, since the stirring ball is introduced into the inside of the pot, the stirring ball stirs the powder with the rotation of the pot and the inside of the pot. Since the agitating balls come into contact with the wall surface of the container, the powder does not adhere to the inside of the kettle, and the agglomeration can be prevented. The powder is prevented from adhering to the inner wall portion inside the kettle, and the carbonized powder is prevented from mixing with the heated product.

According to the powder heating apparatus of claim 2 of the present invention, when the powder is charged into the pot and heated and roasted, far infrared rays are emitted from both the heated pot and the stirring ball. Since not only heat conduction heating but also radiation heating by far-infrared rays act, the inside of the powder raw material can be heated in a short time.

According to the powder roasting apparatus of claim 3 of the present invention, the stirring plate is provided on the rotating shaft inside the kettle.
In addition to the effect of 2, the powder is effectively stirred by rotating the kettle and the stir plate in the forward and reverse directions, and stir balls are formed on the inner wall surface of the kettle, the rotating shaft surface, or the front and back surfaces of the stir plate. Due to the contact, the powder does not adhere to these portions, and a high-quality powder that is uniformly heated can be continuously produced while preventing agglomeration of the powder. Further, the powder is prevented from adhering to the rotating shaft and the front and back surfaces of the stirring plate, and the carbonized powder is prevented from being mixed with the heated product.

According to the powder heating apparatus of the fourth aspect of the present invention, the movable stirring plate is attached to the rotating shaft, and when the powder with the reduced heating amount is charged into the inside of the kettle, the powder is charged from the charging section. The angle of the movable stirring plate can be adjusted so that the charged powder spreads over the entire pot. When the powder is removed after heating, the heated powder can be moved to the discharge side by changing the direction of the movable stirring plate. It is possible to take out the heated powder that has been heated.

According to the powder heating apparatus of claim 5 of the present invention, the heated powder and the stirring balls are discharged when the powder is discharged from the kettle, and the roasted product and the stirring balls are sieved after roasting. Since the roasted product and the stirring ball can be separated by the sorting means, the taken out stirring ball can be re-introduced into the kettle together with new powder.

According to the powder heating apparatus of the sixth aspect of the present invention, since means for separating the stirring balls and the powder are provided inside the kettle, the powder is transferred from the input portion to the discharge portion by rotation of the kettle. As it moves, the powder is sieved and moves.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a powder roasting apparatus according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view showing a mechanism for rotating a movable stirring plate inside the roasting pot of FIG.

FIG. 3 is a view showing an opening shape of a flat plate of the roasting pot of FIG. 1;

FIG. 4 is a view showing an opening position of the rotating plate of FIG. 1;

FIG. 5 is a view showing an opening position of the fixing plate of FIG. 1;

FIG. 6 is a diagram showing a front shape of a roasting pot of the powder roasting apparatus of FIG.

FIG. 7 is a diagram showing a schematic configuration of a powder roasting apparatus according to a second embodiment of the present invention.

FIG. 8 is a view showing a link state of the powder roasting apparatus of FIG. 7;

FIG. 9 is a schematic diagram of a powder roasting apparatus according to a third embodiment.

FIG. 10 is a schematic perspective view of a shuttle according to a third embodiment.

FIG. 11 is a schematic diagram of a roasting apparatus according to a fourth embodiment.

FIG. 12 is a left side view of the roasting apparatus according to the fourth embodiment.

FIG. 13 is a right side view of the roasting apparatus according to the fourth embodiment.

[Explanation of symbols]

 2 Cylinder having cylindrical shape 3 Gas burner (heating device) 4 Electric motor (drive motor) 12 Gear mechanism (rotating device) 13 Reduction gear mechanism (rotating device) 16 Second rotating shaft 18 Stirring plate 19 Third rotating shaft (Angle adjustment) 20) 21 gears (angle adjusting mechanism) 22 movable stirring plate 23, 25 gears (drive means) 24 electric motor (drive means) 33 flat part (flat part) of shuttle 34 movable shutter 35 fixed shutter 36-38 opening

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F26B 23/02 F26B 23/02 Z 25/00 25/00 J 25/04 25/04

Claims (6)

[Claims] 1. A kettle having a cylindrical shape and having a feed portion and a discharge portion for powder as a raw material, a heating device for heating the kettle, and a rotating device for rotating the kettle by a drive motor. A powder heating device comprising: a stirring ball for heating and stirring the powder inserted into the kettle together with the powder. 2. A powder heating apparatus according to claim 1, wherein said kettle has a layer of a far-infrared radiating substance formed on an inner surface thereof, and said stirring ball comprises a metal body, a far-infrared radiating substance, or a metal. A powder heating apparatus characterized in that the body is coated with a far-infrared radiating substance. 3. The powder heating apparatus according to claim 1, wherein said kettle has a cylindrical shape, and a rotary shaft extending in a rotation direction of said kettle extends inside said kettle. A stirring plate for stirring the powder and the stirring ball on a rotating shaft of the powder heating device. 4. The powder heating apparatus according to claim 1, wherein the pot has a cylindrical shape, and an input section for inputting powder as a raw material into one flat plate portion of the pot. A discharge unit for discharging the powder after heating is provided on the other flat plate portion of the kettle; a rotating shaft extending in the axial direction of the kettle is provided inside the kettle; A plurality of stirring plates for stirring the balls are provided, and at least one of the stirring plates is a movable stirring plate whose angle can be changed around a mounting shaft extending in a direction orthogonal to the rotation shaft, and the stirring plate is provided inside the rotation shaft. A powder heating apparatus, comprising: an angle adjusting mechanism for changing the direction of a movable stirring plate; and driving means for driving the angle adjusting mechanism on the rotating shaft. 5. A powder heating apparatus according to claim 1, further comprising means for sorting said stirring balls and said heated powder at a discharge portion of said kettle. Powder heating device. 6. The powder heating apparatus according to claim 1, wherein the pot has a non-cylindrical shape, and an input section for inputting the powder as the raw material into one end of the pot. Forming
A discharge section for discharging heated powder is formed at the other end of the pot, and inside the pot, movement of the powder from the input section to the discharge section is allowed to pass the stirring ball. A powder heating device comprising a plurality of prohibiting means.