JPH0453476A - Heating machine for loose material - Google Patents

Abstract

PURPOSE:To uniformly heat and discharge to outside in a short time loose materials by rotating a vessel having an inverse cone shape inner all face around its central axis, adding a guiding plate in an annular part material on its top end part and lowering the vessel in discharging time. CONSTITUTION:A vessel 3 having an inverse cone shape inner wall face is rotated around a rotation shaft 5 and made to circular motion by a guiding plate 24 of an annular part material 23, then heated with a heater 22. In discharging time, the vessel 3 is lowered and loose materials are dropped into a through 31 by centrifugal force.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a heating device for bulk materials.

[Prior art and its problems] For example, there is a device that roasts and dries granular material (coffee beans) by applying heat from above with a heat source while rolling the material through horizontal rocking motion. Fig. 15 shows a schematic diagram of this conventional roasting machine.

In Fig. 15, material (coffee beans) m is put into a cylindrical container (lo) with a low height, and the container (1°
) A heat source (2°) is placed above the opening of 6
In addition, there is a crankshaft (3°) in the center of the low wall of the container (lo).
is hanging down, and the lower end of the crankshaft (3°) is connected to the electric motor (
4°). When the electric motor (4°) is driven, the container (l") rotates eccentrically because the center of the container (lo) and the center of the rotation axis of the electric motor (4°) do not coincide. This causes the container (lo) to rotate eccentrically. The material m in the container (lo) performs a horizontal rocking motion, and the material m in the container (lo) is rolled.Furthermore, the material m is heated by a heat source (2°) while being rolled, and is roasted and dried. .

In the roasting machine configured as described above, transfer occurs, but there is almost no mixing action between the lower layer and the upper layer (because of only horizontal rocking motion), the layer of material is thickened (then only the top of the layer is charred). This results in uneven baking, and in order to increase the capacity, it is necessary to make the layer of material thinner, and in some cases, to make it a single layer, the area of the container must be widened, which also increases the installation area. Maintenance also becomes difficult.

In view of the above-mentioned problems, the present applicant has previously proposed a heating dryer for bulk materials that can uniformly heat (roast) and dry even when the layer of material is thick. A container having an annular space is vibrably supported, and a torsional vibration force is applied to the container to cause the bulk material in the annular space to move around in the annular space along with rotational movement in the cross section, and to dispose the bulk material in close proximity to each other. We have proposed a heating dryer for bulk materials, which is characterized by heating and drying using a heating means provided (Japanese Patent Application No. 159639/1983).

Fig. 16 shows a heating dryer for bulk materials according to this embodiment, where the entire device is shown at (9°) and a container (lQ') forms a center tube (10a') in the center. The container has a ring-shaped space with an arc-shaped cross section between the container and the peripheral wall. A vibration drive unit (11') is fixed to the bottom wall of the container (10°), and this is, for example, a vibration motor. Further, the container (10°) is vibably fixed to the base (13°) via a plurality of springs (12°) attached to the bottom wall of the container. Further, a discharge port (14') is provided at the bottom of the container TIO'), and a lid fls') is fixed to the open end thereof with bolts. A far-infrared radiator (heat source) is fixed to the opening of the container (10°) by a method not shown, and this heat source (19°) has an exhaust pipe D6°) and a material supply pipe (17 °) is inserted and fixed. Also, the exhaust pipe (
16°) is connected to a cyclone or blower (20°) via a flexible tube.

From the input port (18') of the material supply pipe f17'), the container (1
0'), the material (coffee beans) m is supplied.

When the vibration drive unit (11') is driven, a torsional vibration force is applied to the container (10°). Since the container (10°) has an annular space with a nearly arc-shaped cross section, in other words, it has an arc-shaped side wall, so the material m inside the container (10°) is affected by gravity along this side wall. By receiving the rolling action and torsional vibration force, it moves around the annular space while rotating in the direction shown by arrow A. That is, the material m performs a circular or elliptical compound three-dimensional movement (sliding movement) and moves in a spiral shape around the center tube (10a').

Therefore, the material m is well mixed, and the far infrared ray emitter (19°) is evenly spaced in time, and the heat is evenly absorbed directly into the inside of the material m (moisture).
Roasted and dried evenly. Dust and water vapor generated by mixing, roasting, and drying material m are removed from the exhaust pipe (16”
) through a blower (20°) or a cyclone. The device is operated for a certain period of time, and the roasted and dried material m is discharged from the discharge port (14') by removing the lid (Is').

The apparatus for heating and drying bulk material previously proposed by the present applicant is constructed and operates as described above, and it is true that the uniformity of heating of the bulk material is improved compared to conventional apparatuses. However, although it is sufficient that the above-mentioned circumferential movement and rotational movement in the annular space are performed uniformly within the container (10°), errors in the position of the center of gravity of the container (10°) or vibration generators ( Depending on the relative position of the container (io') with respect to the center of gravity, the container (io') may not necessarily move in the ideal manner as described above, that is, it may be difficult to make the material m perform an ideal complex three-dimensional movement. In many cases, the material m cannot be heated evenly in such cases.

Moreover, the material m roasted and dried to a predetermined state is discharged to the outside from the discharge port (14') by removing the lid (Is') as described above, but the material m is not in the container (IQ'). Since this stores a large amount of bulk material m, it takes a considerable amount of time to discharge all the material m from this one discharge port (14°), which is inefficient.

Furthermore, when heating and drying the material m, the container (10°) is vibrated as described above by the vibration drive unit (11') to circulate and circulate the material m, and a discharge port ( 14°) and a lid f15').
This causes a tendency for the bulk material m to stagnate, and the bulk material m in this part is subjected to less or no circulation and circumferential movement as described above, and the entire material m is heated and dried uniformly. become unable to do so. For example, if the bulk material is coffee beans, raw
Some things are discharged outside.

[Problem that the invention seeks to solve]

The present invention was made in view of the above-mentioned problems, and it is possible to further uniformly heat the bulk material, and after heating it to a predetermined state, the bulk material in the container can be discharged outside in a short time. It is an object of the present invention to provide a heating device for bulk material that does not impede the stirring movement or circulation movement of the entire bulk material in a container.

[Means for Solving the Problems] The above object is to provide a container having an inner circumferential wall surface in the shape of an inverted cone, a rotational drive means for rotating the container around its central axis, and a rotary drive means for rotating the container around its central axis. and a plurality of guide plates, which are normally located close to the open end of the container and are inclined radially inward of the container with respect to the rotation direction, are fixed to the inner circumferential wall. a heating means disposed close to the front end or inner wall of the container; and a circular member disposed concentrically with the container and substantially directly below the upper edge of the container. A loose material receiving means is provided, and the loose material is accommodated in the container, and the container is rotated by the rotational drive means, whereby the bulk material is rotated and the container is moved by centrifugal force. The bulk material is heated by the heating means while performing a circulation movement in which the bulk material is raised along the inner circumferential wall surface, guided by the guide plates, and circulated into the container again, for a predetermined time or a predetermined time. When the container is heated to a certain temperature, the lifting drive means is driven while rotating the container to move it downward a predetermined distance, and the loose material in the container is discharged outward from the upper peripheral edge by centrifugal force. This is achieved by a heating device for bulk material, characterized in that the bulk material is received by the bulk material receiving means.

[Operation] Since the container having an inner circumferential wall surface in the shape of an inverted cone is rotated around its central axis by a rotation drive means, the bulk material inside the container is subjected to centrifugal force while performing circular motion.
As a result, a rising force is applied radially outward along the inner circumferential wall surface of the inverted conical shape. When reaching the annular member to which a plurality of guide plates are attached close to the upper end, the plurality of guide plates remain stationary due to the inertia of the bulk material m due to centrifugal force. The bulk material is guided along this and falls into the center of the container below. It is again subjected to an upward force along the wall surface due to centrifugal force, guided along a plurality of guide plates, and falls again to the center of the container. Since this circular motion is added to the circular motion of the container, the bulk material in the container is uniformly agitated, and all of the bulk material is heated by the heating means disposed close to the front end or inner wall of the container. Heats evenly.

To discharge the bulk material heated to a predetermined temperature or for a predetermined time, the lifting drive means is driven to move the container downward a predetermined distance along its central axis. As a result, the upper edge of the container is separated from the annular member by a predetermined distance, and the loose material moving upward under the influence of centrifugal force along the inner circumferential wall surface moves outward from the upper edge of the container. and falls. Since a circular bulk material receiving means is provided substantially directly below this, all the bulk materials are received at once. Therefore, the time required to discharge the bulk material heated for a predetermined time or to a predetermined temperature is much shorter than in the past. Moreover, such a discharging method makes it possible to uniformly heat all the bulk materials without interfering in any way with the above-mentioned circulation and circumferential movement of the bulk materials under normal heating conditions. In this case, no part will fall into the raw loose material receiving means.

[Example 1] Hereinafter, a coffee bean roasting machine according to an example of the present invention will be described with reference to the drawings.

Figure 1 shows the entire coffee bean roasting machine, which is indicated by (1) in the figure, and the cylindrical housing (2).
) contains each device and each member described in detail below. An inverted conical roasting container (3) is disposed in the upper part of this interior, and a circular fiber-shaped central protrusion (4) is integrally disposed on the horizontal bottom wall (3a) at the center. Fixed.

The roasting container (3) is connected to a rotating shaft (5) in the center, which extends vertically and is rotatably supported by a bearing housing (6) in the upper part. The bearing housing (6) has a pair of upper and lower bearings (7a) (7b) fitted therein, and the rotating shaft (5) has a flange (8) in the center.
In this portion, the weight is rotatably supported by a thrust bearing (9).

A plurality of ribs (80) are fixed to the peripheral wall at the lower end of the bearing housing (6), and a pair of hydraulic cylinders (lo) (11) are connected to the bottom wall of the ribs (80). That is, this driving rod (10a) (ll
The upper end of al is fixed to the bottom wall integrally with the rib (80) with a nut. Hydraulic cylinder (10) (11
) is attached to the housing (2) by the mounting member (811 (81)).
It is fixed to the side wall of a pedestal (12) which is disposed at the lower part of the interior and has a rectangular cylindrical cross section and a circular planar shape. Circular pedestal (
12) is fixed on a disc-shaped substrate (13), and the above-mentioned cylindrical housing (2) is attached to the outer peripheral edge of the board (13).
The bottom edge of is fixed.

A spline shaft (15) is fixed to the lower part of the rotating shaft (5) in the negative direction, and a large number of vertical grooves are formed in this spline shaft (15). A gear (16) is fixed to the lower end of the spline housing (14), which has a groove that engages with the spline shaft (15). It is engaged with a worm gear (17) fixed to the rotating shaft of the worm gear.

The lower end of the rotating shaft (5) is rotatably supported by a pair of bearings [20a] and (20b) fitted in a lower bearing housing (19) supported on the base plate (13). As described above, the rotary shaft (5) fixes the roasting container (3) on the upper part thereof and accommodates a large amount of coffee beans as described below. A bearing mechanism allows stable rotation.

The upper opening of the cylindrical housing (2) is covered with a disc-shaped lid (83), to which a cylindrical far-infrared radiator mounting member (21) is fixed, and on the internal upper wall surface, for example, A far-infrared radiator (22) made of ceramic is fixed. As is well known, this device has a heating wire embedded in it and generates heat by passing an electric current through it and emits far infrared rays.

Further, an annular mounting member (23), the shape of which is clearly shown in FIG. 6, faces the far-infrared radiator (22), and has guide blades (24) fixed to its inner peripheral wall at equal angular intervals. Usually, the lower end flange part f is attached to the flange part (3b) at the upper end of the container (3) with a slight gap as shown in the figure.
23a) are fixed to the housing (2) via a cylindrical mounting member (90) and a member (91) so as to face each other.

A through hole is formed in the center of the far infrared ray radiator mounting member (21) and the far infrared ray radiator (22) attached to the inner wall surface thereof, and a hopper for supplying coffee beans ( The outlet portion (25a) of 25) is visible. A damper (26) is installed in this discharge port f25al, and it can be moved to the position shown in the figure by an opening/closing mechanism (not shown), or by rotating 90 degrees counterclockwise in the figure using this hinge as a pivot point. Discharge port (
25a) is arranged so as to come into contact with the inner wall surface of 25a).

Further, the discharge port (25a) of the hopper (25) is supported by a discharge duct (27) fixed to the upper wall surface of the far-infrared radiator mounting member (21). Although not shown, this duct (27) is connected to a cyclone or an exhaust blower.

That is, it is configured to exhaust water vapor and fine dust components generated within the roasting container (3).

Inside the housing (2), a circular cooling vibration conveyor (30) is disposed below the roasting container (3) and around the rotating shaft (5). Next, details of this circular cooling vibration conveyor (30) will be explained with particular reference to FIGS. 3 and 4.

The circular cooling vibration conveyor (30) is provided with a trough (31) having a circular planar shape, and a punched metal (32) is stretched over the inner side wall of the trough (31), and the cooling water is discharged from the bottom of this trough (31). (35), and bunch metal (
32) is used as a coffee bean circulation path (93).

The trough (31) is vertically parallel to the trough (31) and connected to a circular counterweight (53) by a pair of left and right lens elements (47) (4g) arranged at equal angular intervals. Referring to FIG. 4, these intermediate parts are supported by bushes (49) (49), which consist of an outer ring and an inner ring with a rubber ring interposed therebetween, as is known in the art. Ga Ren power (47)
The outer ring is fixed to the central part of the pillar (51).
(Fixed to szl. This support (51Hsz,
The weights l are arranged at equal angular intervals like the weights (471 (48)), and are fixed on a circular pedestal (38) arranged below and aligned with the counter weight (53). ing.

The trough (3L) is connected to the lower counterweight (53) by means of a lens force (47) [8) constructed as described above and as shown; these forces (471 (48)) are They are connected by a connecting rod (46).

Next, the drive section (36) of the cooling vibration conveyor (30) will be explained. A driving electric motor (3) is mounted on the pedestal (38).
7) is arranged and a pulley (55
) is wound around a driven pulley (39) via a belt (40), and this rotation is converted into a straight line by a crank mechanism, but this linear reciprocating motion is performed from left to right with respect to the trough (31). A pair of connecting levers (41) (
41) to the trough (31).

That is, the other end of this lever (41) is transmitted to the trough (31) by a rubber bushing made of rubber plates (42) and (43) mounted between metal plates in a sun-dried manner.

Connecting plates (44) are fixed to both side walls of the trough (31), and the upper and lower metal plates of the rubber bush constructed as described above are fixed to these. In other words, the connecting plate (4
4), the reciprocating movement of the lever (41) (41) is controlled by the rubber plate (
42) f43) is transmitted to the trough (31). This absorbs the shock when starting the motor (37).

As described above, the trough (31) and the counter weight (53) are connected, and these are further connected by coil springs (45) arranged at equal angular intervals. As described above, a circular cooling vibration conveyor (3
0) is composed of a trough (31), a counter weight (53), a spring (45), and a rubber bush (
49) etc. constitute a two-mass vibration system, and the crank mechanism is driven by the rotational force of the motor (37) at a drive frequency close to this resonance vibration frequency.

Next, the arrangement of the above-mentioned lenses (47) and (48) will be explained in detail.

The trough (31) is connected to the counter weight (53) by a pair of left and right lenses (47) and (48) in the direction of material transfer.
) or in the radial direction of the counter weight (53),
The outer Len force (47) is longer than the inner Len force (48) as clearly shown in Figure 12, and its angle of inclination α with respect to the horizontal line is greater than the inclination angle β of the inner Len force (48). . These inclination angles α and β are the width of the trough (31) and the trough (
31) is determined by the set vibration angle. In this embodiment, the set vibration angle is 30 degrees, and the inclination angle α is approximately 68 degrees.
The inclination angle β is approximately 43 degrees. In order to set the vibration angle to 30 degrees, a coil spring (45) is connected to the trough (31) and counterweight (53) via mounting members (57) and (58) at the position shown by the dotted line in FIG. Ru. The angle of inclination of the coil spring (45) with respect to the horizontal line is 30 degrees.

The outer force (47) has rubber bushings (67) on both ends.
(68), and each of these inner rings has a trough (3
1) and the counter weight (53). On the other hand, the inner ring force (48) is also equipped with rubber bushes (781 (791) at both ends, and these inner ring sides are respectively connected to the trough (31) via the mounting members (851 [861]).
and the counter weight (53). In addition, as mentioned above, the lens force (47) (48) is also provided with rubber bushes (49) (49) in the center, and the inner ring side thereof is fixed to the center portion of the force sensor (47) (48) at both ends. The outer ring side is fixed to a pair of left and right supports f51) (52).

The circular cooling vibration conveyor (30) is constructed as described above, and the space below the punch metal (32) stretched within the trough (31) becomes the cooling water discharge path (long). However, as shown in FIG. 3, a cooling water discharge pipe (33) is connected to this discharge passage (35) via a bellows (34).
) are connected.

Further, cooling water sprinkling pipes (100) (101) (102) (103) are arranged above the circular trough (31), and each of these vibes has a plurality of nozzle ports (Iota) to (103al). is formed, and cooling water is sprayed from this toward the punched metal (32) below.

Furthermore, an opening (31a) is formed in the outer peripheral wall surface of the trough (31), and a gate (1) is formed so as to normally close this, that is, to form a part of the side wall of the trough (31).
201 is rotatably attached with a hinge (121). As shown in FIG. 3, the position indicated by the dashed line is the open position, and in this position, the discharge chute (110) is fixed to the side wall of the trough (31), and the coffee bean container is located below the discharge end. (111) is arranged.

Next, details of the annular mounting member (23) that attaches the guide blade (24) to the inner peripheral wall will be explained with particular reference to FIG. 2.The guide blade (24) is arc-shaped. However, one end is fixed to the inner peripheral wall of the annular member (23) at equal angular intervals, and this one end (24a)
is inserted through a slit-shaped opening formed in the annular member (23), and one end (24a) serving as the outer end thereof is inserted into the member (23).
3) It is attached by welding to. As a result, the inner peripheral wall surface T23b) of the annular member (23) and the material introduction side end (24b) of the guide blade (24) are flush with each other. Moreover, as shown in FIG. 2, it is bent in the same direction as the rotational direction R of the roasting container (3).

The configuration of the coffee bean roasting machine according to the embodiment of the present invention has been described above, and its operation will now be described.

Above the hopper (25) shown in Figure 1, an even larger capacity hopper (not shown) is fixed to a part of the building, and its discharge opening is usually closed with a per, but it is not used for roasting coffee beans. The damper is opened in response to a command from the control device that controls the brewing machine. A large capacity hopper stores a large amount of green coffee beans, which are then discharged to the hopper (25) below. Although not shown in FIG. 1, the hopper (25) may be filled in advance to a level such that coffee beans are immediately supplied to the space above the damper (26). In any case, the lower discharge port (
25a) and is discharged falling towards the central protrusion (4) in the center of the roasting vessel (3) which is arranged above within the housing (2). On the other hand, the motor (18) drives the worm gear (17), the gear (16), the spline shaft (15), and the spline housing (1
4) rotates the rotating shaft (5). Therefore, the roasting container (3) is rotating at a predetermined speed in the direction of arrow R shown in FIG. In this state, the coffee beans m fall and are discharged from the hopper (25), but are immediately dispersed around the central protrusion (4) and rotate together with the conical inner wall surface of the roasting container (3).

At this time, as clearly shown in FIG. 5, the coffee beans m receive the centrifugal force caused by the rotation of the roasting container (3) and rise along the inner peripheral wall surface of the roasting container (3) as shown by the arrow. 3) A flange portion (3b) formed at the upper end and an annular member or blade mounting plate (23) disposed close to the flange portion (3b)
The coffee beans m are discharged to the outside. At this time,
The roasting container (3) collides with the guide blade (24) as shown in FIGS.
) is rotating) as shown in Fig. 6, and because the guide blade mounting plate (23) is fixed to a stationary part, the coffee beans M is guided by the inertial force caused by centrifugal force, and falls from the lower end of the guide blade (24) into the roasting container (3) below. A large number of guide blades (24) are arranged in parallel as shown in FIG. Fall towards it. Since the roasting container (3) is still rotating at a predetermined speed, the coffee beans m again receive the upward force along the inner circumferential wall surface, are guided by the guide blade (24) as described above, and are roasted again. It falls onto the peripheral wall of the central protrusion (4) of the container (3). As described above, the coffee beans m move around in the annular space around the central protrusion (4) in FIG. 1, and
undergoes circular motion in this cross section. Due to these two circulation effects, the coffee beans m are uniformly radiated with far infrared rays from the far infrared ray emitter (22) above, and therefore, due to their dielectric properties, the moisture within the coffee beans m absorbs radiation energy and is heated.

The coffee beans m are thus uniformly heated to a predetermined temperature and then discharged to the outside in the following manner.

Since the motor (18) continues to rotate, the roasting container (3)
The hydraulic cylinders (10) (11) are still rotating.
is driven, and the drive rod (10a) moves downward from the position shown in Figure 1, thereby opening the roasting container (
3) takes the position indicated by the - dotted chain line. Note that the spline shaft (
15), the rotational force of the motor (18) is not hindered in any way (and processing can be performed smoothly).The coffee beans m in the roasting container (3) are heated as described above. As shown in Fig. 7, the flange (3b) at the upper end of the roasting container (3) and the guide blade mounting plate (23) have moved upward due to centrifugal force, and there is now a large gap between them (as shown by the arrow). The coffee beans m are discharged outward from the entire peripheral edge of the roasting container (3) and fall onto the punched metal (32) of the trough (31) of the circular cooling vibration conveyor (30) located directly below. Note that the cylindrical member (9
0) works to prevent coffee beans m from flying out of the trough (31).

A motor (3) is installed in a circular cooling vibration conveyor (30).
7) is driven, which causes the pulleys (55) (39)
, further rubber plate (421f43) via the connecting plate (41)
The trough (31) vibrates in the direction a shown in FIG. 4 via the connecting plate (44). As a result, the coffee beans m circulate on the punch metal in the trough (30) like a merry-go-round, and during this time, the cooling water sprinkler pipe (100)
~ (103) nozzle (100a) flora) (
102a) Cooling water is poured from (103a). As a result, the heated coffee beans m are rapidly cooled. When cooled to a predetermined temperature, the damper (120) forming part of the side wall of the trough assumes an open position as shown by the dashed line in FIG. As a result, the coffee beans m are discharged from the trough (31) through the discharge chute (110) into the coffee bean container (Ill).

On the other hand, the cooling water sprinkled from the cooling water sprinkling pipes (100) to f103) is led to the cooling water discharge passage (35) below through the punch metal (32), and is transferred through this 1 by being subjected to vibration. and is discharged to the outside through a discharge pipe (33) as shown in FIG.

As described above, when power is applied to the motor (37), the pulley (39) rotates and the connecting lever (41) reciprocates at a frequency of, for example, 580 times/minute. The trough (31) vibrates at a vibration angle of 30 degrees as indicated by arrow a.

In response to the above vibration force, the outer force (47) is the 13th
As schematically shown at (47) in the figure, it reciprocates around a rubber bush at the center, and its both ends vibrate as indicated by arrow d. The inner ring (48) also reciprocates around the rubber bushing at the center, as shown schematically, and its both ends vibrate as indicated by arrow e. As shown in FIG. 14, these vibrations d and e differ in angle with respect to the horizontal direction X, that is, the vibration angle, and also differ in amplitude, but the magnitude in the vertical direction y is equal. At the center line C of the trough (31), the vibration angle is 30 degrees and the vibration is at an intermediate amplitude between vibrations d and e, but in the radial direction, the inner wall has a vibration e, and the outer wall has a vibration d. Vibrate.

The magnitude of vibration in the vertical direction y is also the same at the center line C. The vibration angles of vibrations d and e are given by the Len force (471 (4
8) is the inclination angle with respect to the vertical line. That is, they are 22 degrees and 47 degrees, respectively. In this way, we made the vibration angles different between the outside and inside, so Lenka (47) (48)
No more twisting. If the inner and outer forces had the same angle of inclination, twisting would occur and failure would occur.

In addition, since the inner force is made shorter than the outer force, the width of the inner side is reduced and a semicircular arc-shaped trough (31
) can obtain f-like vibrations along the center line C. Thus the punched metal (32) in the trough (31)
The upper coffee beans m are transported along the trough (31) as shown by arrow F in FIG.

The counter weight (53) also vibrates in the same way as the trough (31), but the phase is 180 degrees different. This allows the rubber bushing (47) and (48) in the center of
49) The reaction force applied to the pedestal (38) via (49) is almost zero.

As described above, the roasting container (3) is heated from the inside by far infrared rays from the far infrared ray emitter (22) while being stirred in a negative manner. Immediately thereafter, the coffee beans m are rapidly cooled with cooling water in a circular cooling vibration conveyor (30), so that coffee beans m with a very good aroma can be obtained.

Punched metal (
32) When there are no more coffee beans m on top of the damper (
120) is brought into a closed position to the position shown in solid lines in FIG. Thereafter, the hydraulic cylinders (10) [11] are driven to raise the drive rod (10a) (Ila) to the position shown by the solid line in FIG. The roasting vessel (3) thus assumes the position indicated by the solid line. The drive of the motor (18) is stopped and the roasting container (3) does not rotate, and in this state the hopper (
The damper (26) in the roasting container (25) is placed in the open position, and as described above, green coffee beans m are supplied into the roasting container (3) from the upper storage hopper (not shown). Thereafter, when the roasting container (3) is rotated and heated to a predetermined temperature by the same action as described above, the hydraulic cylinder (10) (ll) is driven again to move the drive rod (10a) (lla) to the position shown in FIG. The roasting container (3) is moved downward from the position shown by the solid line, and the roasting container (3) is moved to the position shown by the - dotted chain line. A circular vibrating conveyor (30) that uniformly cools the heated coffee beans m from their outer periphery.
As mentioned above, the cooling water is rapidly cooled by the cooling water from the cooling water sprinkler pipes (1001 to (103)).

Hereafter, the coffee bean storage container (
111), coffee beans as a product are obtained.

Note that instead of the coffee bean container (ill), a belt conveyor may be provided at this position to convey the rapidly cooled coffee beans from the discharge chute (110) to a predetermined position.

Additionally, a slit is formed in the peripheral wall of the annular member (23) to which the guide blade (24) is attached, which is disposed above the roasting container (3) of this embodiment, and the blade (24)
) is bent and inserted, and fixed to the outer wall of this by welding. Therefore, the inner circumferential wall surface +23b) of the annular member (23) and the introduction side end (24b) are flush with each other, so that the guide blade (24) is transferred by inertia during the circulation of coffee beans m as shown in FIG. This guide blade (24
), the coffee beans m are smoothly guided to the guide blade (24) without damaging the coffee beans m, and are heated and cooled as described above to produce extremely aromatic and unblemished coffee beans. can be obtained.

8 and 9 show a circular cooling vibration conveyor in a coffee bean roasting machine according to a second embodiment of the present invention, but the other configurations are the same as in the first embodiment.

That is, the circular cooling vibration conveyor according to this embodiment is an electromagnetic drive unit, and circular troughs (60) are arranged below the troughs, and a pair of left and right circular counterweights (61) are arranged. They are connected by stacked leaf springs (62) and (63). Electromagnets (65) (65) are fixed at 180 degree intervals on the counter weight (61), and a movable core (661 (66)) is placed at the bottom of the trough (60) so as to face them with a gap. Fixed to the wall.

Even in the above-mentioned circular cooling vibration conveyor, when AC current is applied to the coil in the electromagnet (65) (651), an AC magnetic attraction force is generated between this and the movable core (661f661), and the normal linear cooling vibration is generated. Similar to the conveyor, linear vibration is applied to each part, so that the coffee beans m on the punch metal (32) in the trough (60) can perform a circular motion in the same manner as in the first embodiment.Other functions,
The effect is the same as that of the first embodiment, so a description thereof will be omitted.

1O and 11 show a coffee bean roasting machine according to a third embodiment of the present invention, and parts corresponding to the above embodiments are given the same reference numerals and detailed explanation thereof will be omitted. That is, in this embodiment, the configuration of the circular cooling vibration conveyor (70) is different. Similar to the embodiment described above, a punched metal (72) is stretched within the annular trough (31), and a cooling water discharge passage (73) is formed below this. Further, this trough (71) has inclined leaf springs (7) disposed at 90 degree intervals on a disc-shaped base (74).
7). Further, electromagnets f76) (76) are fixed on the base (74) at 180 degree intervals, and a movable core (76) is mounted opposite to this with a gap in between.
51 (75) is fixed to the bottom of the trough (71).

Also in this example, when alternating current is applied to the coil of the electromagnet (761 (76)), this and the movable core f75 (75)
A magnetic alternating force acts between them, and this generates a torsional vibration force, causing the trough (71) to torsionally vibrate, thereby causing the coffee beans m on the punch metal (72) to perform a circular motion. Other effects are the same as those in the above embodiment.

Although each embodiment of the present invention has been described above, the present invention is not limited to these (various modifications can be made based on the technical idea of the present invention).

For example, in the above embodiment, coffee beans m are supplied to the roasting container (3), heated, and rapidly cooled to obtain coffee beans as a product, but other bulk materials may be used instead of coffee beans. For example, grains such as rice and corn may be supplied as bulk materials. In this case, a circular container may be simply provided instead of the circular cooling vibration conveyor disposed below the roasting container (3). Alternatively, it may be used not as a cooling vibration conveyor for cooling but as a conveyor for conveying to a predetermined position.

Alternatively, instead of cooling water, cooling air is introduced below the punched metal, and this is blown onto the punched metal-like bulk material, which is conveyed by vibration while being in a fluid state, and cooled by heat exchange with the air. You can do it like this. In other words, it will undergo dry cooling.

In addition, in the above embodiment, in order to rotate the roasting container, a motor, a worm gear, a gear, a spline shaft, and a bearing f7 are used.
a) (7b) Although a thrust bearing and the like are provided, the present invention is of course not limited to these, and other rotational drive mechanisms may be used.

Furthermore, in the above embodiment, a pair of hydraulic cylinders (1 (1) (il) are used to move the roasting container (3) up and down, and the cylinders are disposed below the bearing housing (6). is a hydraulic cylinder (
The drive rod (LOA) (LLA) of 101 (11) was raised, but instead of this, it is arranged above the bearing housing (6) and the drive rod (LOA)
(lla) may extend downwards, so that in normal roasting conditions the drive rod fl(la) (lla) assumes a retracted position within the cylinder.

Or instead of using a hydraulic cylinder, a motor and gear,
Roasting containers (
3) may be moved up and down.

Furthermore, in the above embodiment, a far-infrared radiator (22) is disposed above the roasting container (3), and the water in the coffee beans is heated by absorbing energy by far-infrared rays. A far-infrared lamp may be provided for heating.

Further, although the guide blade (24) is shaped like an arc so that the coffee beans guided by it fall onto the peripheral wall of the central protrusion (4), they may be simply shaped like a flat plate.

Furthermore, in the above embodiments, the far-infrared radiator (22) was provided above the grove-shaped roasting container (3), but the container (
3) may be configured as the inner wall, and the far infrared rays may be emitted from the inner wall to the coffee beans in the container. Alternatively, the central protrusion (4) may be a far-infrared radiator.

〔Effect of the invention〕

As described above, according to the heating device for bulk materials of the present invention, bulk materials heated to a predetermined state in a container having an inner circumferential wall surface having an inverted conical shape can be discharged to the outside. The time required can be further shortened compared to the conventional method, and the means for discharging the bulk material can be circulated and heated within the container without interfering with this circulation movement (thus, compared to the conventional method). It is possible to heat bulk materials more evenly.a

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a coffee bean roasting machine or a roasting machine according to a first embodiment of the present invention, and FIG.
■A sectional view in the line direction, Figure 3 is a sectional view in the ■-■ line direction in Figure 1, Figure 4 is the inward side in the IV-1'V line in Figure 3, and Figure 5 is the effect of the same embodiment. FIG. 6 is a sectional view of the main part for explaining the action of the same embodiment, FIG. 6 is a plan view of the main part seen from the same direction as FIG. 2 for explaining the action of the same embodiment, and FIG. 8 is a partially cutaway side view of a circular cooling vibration conveyor in a coffee bean roasting machine according to a second embodiment of the present invention;
FIG. 9 is a sectional view similar to FIG. 3 in the second embodiment,
FIG. 10 is a partially cutaway side view of a coffee bean roaster according to a third embodiment of the present invention, FIG. 11 is a sectional view similar to FIG. 3 in the same embodiment, and FIG. 12 is a circular shape in the first embodiment. FIGS. 13 and 14 are principle diagrams for explaining the action of the main parts shown in FIG. 12, and FIG. 15 is a conventional coffee bean roaster. A perspective view of the roasting machine and FIG. 16 are a partially cutaway side view of another conventional coffee bean roasting machine. In the figure, (1)・・・・・・・・・・ (3)・・・・・・・・・・ (5)・・・・・・・・・・ (6)・・...... (7a) (7b)... (101(11)... (10a) (lla) - (14)...... ( 15)－・・・・・・・・・ (16)・・・・・・・・・・ (17)・・・・・・・・・・ (18)・・・・・・・・・・ (19)・・・・・・・・・ (20a)(20b)・・・・ (22)・・・・・・・・・(23)・・・・・・・・・Roasting Machine Roasting Container Rotating Shaft Bearing Housing Bearing Hydraulic Cylinder Drive Rod Spline Housing Spline Shaft Gear Worm Gear Motor Lower Bearing Housing Bearing Far Infrared Emitter Annular Member (24)・・・・・・・・・ (30)・・・・・・・・・(31)(60)(71)・・・(70)・・・・・・・・・ For cooling guide blade Cooling vibration conveyor trough Circular cooling vibration conveyor Agent Mei Han Yasuo Figure 5 Figure 7 = 419- Figure 6 Figure 12 Figure 16

Claims (10)

[Claims] (1) A container having an inner circumferential wall surface having a substantially inverted conical shape, and a rotational drive means for rotating the container around its central axis;
an elevating drive means for elevating and lowering the container along the central axis; and a plurality of guide plates that are normally located close to the open end of the container and are inclined radially inward of the container with respect to the rotation direction. an annular member fixed to an inner circumferential wall; a heating means disposed close to the front end or inner wall of the container; and a heating means disposed concentrically with the container, substantially directly below the upper peripheral edge of the container. and a circular bulk material receiving means disposed in the container, the container is rotated by the rotary drive means to cause the bulk material to undergo circular motion. The bulk material is heated by the heating means while performing a circular movement in which the bulk material is raised along the inner circumferential wall surface of the container by centrifugal force, guided by the guide plates, and circulated back into the container. and when heated for a predetermined time or to a predetermined temperature, the lifting drive means is driven while rotating the container to move it a predetermined distance.
Heating of bulk material, characterized in that the bulk material in the container is moved downward, and the bulk material in the container is discharged outward from the upper peripheral edge by centrifugal force, and is received by the bulk material receiving means. Device. (2) Heating the bulk material according to claim 1, wherein the bulk material receiving means is a trough, and the bulk material is circulated within the trough by applying linear vibration to the trough. Device. (3) The apparatus for heating bulk materials according to claim 2, wherein a punched metal is stretched over the trough, and a cooling water sprinkler is provided above the trough. (4) A gate means is provided in a part of the trough at a level above the punch metal, and a cooling water discharge means is provided at a level below the punch metal, so that the bulk material reaches a predetermined temperature. 4. A heating device for bulk material according to claim 3, wherein the gate means is opened to discharge the bulk material outwardly from the trough when cooled. (5) The heating device for bulk material according to any one of claims (1) to (4), wherein the bulk material is coffee beans, and the heating means is a far-infrared radiator. (6) The heating device for bulk material according to claim (5), wherein the far-infrared radiator is disposed close to the annular member. (7) The bulk material receiving means includes a circular trough and a circular counterweight arranged above and below; the trough is arranged as a pair on the left and right along the material transfer direction, and the trough and the counterweight The vibration conveyor is comprised of a coupling member that supports vibration in opposite directions; a vibration exciter that vibrates the trough or the counter weight; and the center of the coupling member is supported on a base. The heating device for bulk material according to claim (1). (8) The apparatus for heating bulk material according to claim 7, wherein the inclination angle of the outer coupling member with respect to the horizontal line is larger than the inclination angle of the inner coupling member with respect to the horizontal line in the radial direction. (9) The apparatus for heating bulk materials according to claim (8), wherein the length of the outer coupling member is greater than the length of the inner coupling member. (10) A slit approximately equal to the thickness of the guide plate is formed in the peripheral wall of the annular member, one end of the guide plate is inserted through the slit, bent, and fixed to the outer peripheral wall of the guide plate. Claims (1) to (1), wherein an end of the guide plate on the introduction side of the bulk material and an inner circumferential wall surface of the annular member are flush with each other.
9) The heating device for bulk material according to any one of 9).