JP7138992B1 - Trolley-type dryer and trolley with wind direction plate used for it - Google Patents

Abstract

[Problem] To provide a structure for passing dry air as a horizontal airflow through a plurality of carriages arranged in a row from a location near a heating chamber, wherein the carriage is arranged downstream of the horizontal airflow. To provide a trolley type dryer and a trolley with a wind direction plate used therein capable of uniformly drying objects to be dried housed in all the trolleys by preventing floating of dry air in the lower part and suppressing the manufacturing cost. A truck-type dryer (1a) of the present invention comprises a heating chamber (52) and a drying chamber (53) which are box-shaped and connected to each other through a circulation duct (51a) and a discharge duct (51b), and a heating chamber inside the drying chamber (53). The wind direction plates 4 are arranged so as to form a line in order from the position near the top 52, and are hinged to the front and rear ends of the top plate 55a so as to be rotatable up to 180 degrees from the state in which they are folded so as to overlap on the top plate 55a. It is equipped with three carriages with wind direction plates 2a to 2c each connected via 3, a blower 58 and a combustion furnace 59 installed inside the heating chamber 52. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cart used for drying an object to be dried with a horizontal stream of heated dry air, and in particular, it is equipped with a wind direction plate capable of uniformly drying the object to be dried without causing uneven drying. Regarding carts.

When drying foods such as vegetables and fruits, a truck-type dryer as shown in FIG. 6 is sometimes used. FIG. 6(a) is a schematic diagram showing the internal structure of a common truck-type dryer, showing a state in which a part of the side plate of the drying chamber is removed. Moreover, FIG.6(b) and FIG.6(c) are the side views and front views of the truck shown to Fig.6 (a).
In order to avoid complicating the drawing in FIG. 6(a), illustration of the support for holding the drying tray is omitted, and in FIGS. 6(b) and 6(c), some supports Only the symbols are attached.
As shown in FIG. 6(a), the trolley-type dryer 50 has a box-shaped heating chamber 52 and a drying chamber 53 whose upper and lower portions are connected to each other via a circulation duct 51a and a discharge duct 51b. Carts 54a to 54c carried into the drying chamber 53, and a perforated plate 60 installed between the car 54a and the discharge duct 51b and functioning as a straightening means for dividing the air discharged from the discharge duct 51b into a plurality of horizontal air currents. I have. Inside the heating chamber 52 , a blower 58 for blowing air downward is installed at substantially the center in the height direction, and a combustion furnace 59 is installed below the blower 58 .

The drying chamber 53 has a size that allows three carriages 54a to 54c to be arranged in a row from a position closer to the heating chamber 52, and the top plate 53a has an exhaust port near the circulation duct 51a. (not shown) are provided, and a side plate 53c parallel to the side plate 53b to which the circulation duct 51a and the discharge duct 51b are connected has a door (not shown) for carrying the carts 54a to 54c into the drying chamber 53. ) are provided.
As shown in FIGS. 6(b) and 6(c), the carriages 54a to 54c have a top plate 55a and a bottom plate 55b each having a rectangular shape, and four corners of the top plate 55a and the bottom plate 55b. Four metal rods 55c that connect each other, casters 56 attached to the lower surface of the bottom plate 55b, supports 57b made of angle members installed on the rods 55c, top plate 55a and bottom plate 55b. There is provided a drying tray 57a which is held horizontally by a support 57b between the drying trays 57a for containing the material to be dried.

7(a) and 7(b) are diagrams schematically showing the flow of air inside the truck-type dryer shown in FIG. 6(a).
In the truck-type dryer 50, as shown in FIG. 7(a), the air sent from the blower 58 to the combustion furnace 59 in the heating chamber 52 is heated in the combustion furnace 59 to become dry air, which is discharged as indicated by the arrow A. It is supplied to the drying chamber 53 through the duct 51b. The dry air sent to the drying chamber 53 is divided by the perforated plate 60 into a plurality of horizontal air currents as indicated by arrows B, and then passes between a plurality of drying trays 57a mounted on the carts 54a to 54c. . Then, the dry air absorbs the moisture of the material to be dried stored in the drying tray 57a (see FIG. 6(c)) and becomes moist air. As indicated by arrow D, it moves toward heating room 52 along top plate 53a.
A part of this moist air is discharged from the exhaust port, but the remaining moist air is sucked into the inside of the heating chamber 52 through the circulation duct 51a by the action of the blower 58 as indicated by the arrow E, and then the combustion furnace 59 It becomes dry air again by being heated at .
As described above, the truck-type dryer 50 circulates air (dry air and moist air) between the heating chamber 52 and the drying chamber 53 as shown by arrows A to E, and the drying trays 57a of the trucks 54a to 54c are dried. It has a structure in which the material to be dried contained in the drying chamber is dried by a horizontal stream of dry air.
However, since the dry air sent from the discharge duct 51b to the drying chamber 53 has a high temperature and has a lower specific gravity than the surrounding air, places such as the trucks 54b and 54c that are far from the heating chamber 52 and where the flow velocity of the dry air weakens Then, as indicated by arrow F in FIG. 7(b), the dry air moves to the rear of the drying chamber 53 while floating. That is, in the conventional trolley-type dryer 50, it is difficult for the dry air to reach the portions surrounded by the broken lines in the trolleys 54b and 54c far from the heating chamber 52, so that there is a tendency for uneven drying to occur in those portions. increased as the flow velocity of the dry air was stronger and the temperature was higher.
FIG. 6(a) shows a state in which the carriages 54a to 54c are arranged in a row inside the drying chamber 53. Even in a state in which the carriages are arranged in three rows in the same direction (that is, a state in which a total of nine carriages are arranged), the phenomenon of uneven drying described above with reference to FIG. 7(b) similarly occurs.

Therefore, the applicant of the present application first installed a roof on the carriages 54a to 54c, and applied pressure from the top surface to the dry air flowing through the carriages 54a to 54c, thereby preventing the dry air from floating. tried to suppress. However, in this case, in addition to the effect of suppressing the floating of the dry air being small, there is a hygiene problem in that it is difficult to wash the upper part of the roof.
Next, the applicant installed a wind direction plate between the carriage 54c and the side plate 53c of the drying chamber 53 so as to face obliquely upward from the vicinity of the bottom plate 55b of the carriage 54c. However, in this method, while the extra work of installing and cleaning the wind deflector increases, there is a problem that the effect of suppressing the floating of the dry air is not exhibited as expected.
Furthermore, the applicant lowered the position of the top plate 53a of the drying chamber 53 to narrow the space above the trucks 54a to 54c, and installed a punching plate behind the truck 54c to create an air pool between the truck 54c and the punching plate. I tried to suppress the floating of dry air by generating it. However, in this case, the punching plate must be opened and closed each time the carriages 54a to 54c are carried into the drying chamber 53, and furthermore, the steps caused by the rails for opening and closing the punching plates can interfere with the movement of the carriages 54a to 54c. In addition to being an obstacle, there is also the problem that dust tends to accumulate in the grooves of the opening and closing rails of the punching plate.
As described above, the conventional trolley-type dryer 50 has a problem that it is difficult to prevent uneven drying that occurs in the lower portions of the trolleys 54b and 54c.

As a technology related to a dryer equipped with a drying tray 57a corresponding to the drying tray 57a described above, for example, Patent Document 1 describes a technique called "drying cart", in which dried fish raw materials placed on a bamboo steamer are boiled and then dried. An invention is disclosed that relates to a carriage for
In the invention disclosed in Patent Document 1, an underframe in which a plurality of stages of steamers are accommodated is placed on a movable cart in a detachable state, and the plurality of stages of steamers are brought into close contact with each other and separated from each other. A connecting means for releasable connection and a locking device for holding each steamer in a spaced apart condition, the connecting means ensuring that each steamer is spaced apart when the upper steamer is lifted and supported by the locking device. It is characterized in that it is lifted in an open state, and when the support is removed, the steamers are stacked in close contact with each other.
According to such a structure, it is not necessary to change the steamer on multiple stages during boiling or drying. Also, if each bamboo steamer is brought into close contact with the steamers during boiling, the raw fish for the dried sardines will not come out of the steamer. By separating the steamers, it is possible to put in and take out raw fish and dried sardines for ventilation drying and dried sardines.

In addition, Patent Document 2 discloses a device related to a dryer having a rectifying function at the bottom of a carriage under the title of "truck-type dryer having a rectifying function."
The device disclosed in Patent Document 2 includes a heating chamber that heats air to dry air, a drying chamber that dries an object to be dried, a discharge duct that communicates the lower part of the heating chamber and the drying chamber, and a drying chamber. and the upper part of the heating chamber are equipped with a circulation duct that enables air circulation. A plate having a plurality of ventilation holes is arranged at the lowest stage of the discharge duct, and this plate is arranged above the upper surface of the discharge duct.
According to this structure, the material to be dried is uniformly dried by the rectified dry air, and there is no need to transfer the shrimps placed on the trolley to the shelf dryer. Less labor required for drying.

Furthermore, Patent Document 3 discloses a device for drying by blowing air to the material to be dried placed on the drying racks arranged in the drying chamber under the name of "circulating air blower for drying chamber". there is
The device disclosed in Patent Document 3 is a dryer that sends dry air, and a blower that circulates the dry air sent from the dryer through the ceiling and the inside of the drying warehouse in which the drying trolley is installed. , a rectifying grid that is installed on the ceiling and rectifies the dry air flowing into the drying chamber, a blowout grill that uniformly rectifies the air volume of the dry air rectified by the rectifying grid, and a dry air that has passed through this blowout grill. and a suction grill that guides the air whose humidity has increased after passing through the drying chamber so that it can be evenly sent to the dryer.
According to such a structure, the object can be uniformly dried in a short period of time by circulating the evenly sent air.

Patent Literature 4 discloses an invention related to equipment used for drying plums and the like under the title of "Blower with Air Blower Direction Control Function and Drying Equipment Equipped with this Blower".
The air blower disclosed in Patent Document 4 includes a drying chamber having an internal space of a predetermined size and in which a pallet truck is installed, an air circulation flow path provided inside the drying chamber, and this air circulation flow path. The drying chamber is provided with a blowing direction control means for circulating or exhausting the air in the drying chamber.
According to such a structure, exhaust and circulation of sucked air can be performed separately or simultaneously.

Patent Document 5 discloses an invention related to an apparatus used in a food drying process under the name of "food drying apparatus".
The invention disclosed in Patent Document 5 includes a water tank configured to be able to control the water temperature to a predetermined temperature, a cylinder installed so as to communicate with the water tank, and an air duct connected to the bottom of the cylinder. an air delivery unit for introducing air into the cylinder; and an air delivery unit installed in the cylinder and controlled at a predetermined temperature in the water tank. A dew point saturated air generation mechanism consisting of a high-pressure water sprinkling unit that can form mist-like dew point saturated air containing fine water droplets with air, and a dew point saturated air generating mechanism that reheats the mist-like dew point saturated air containing fine water droplets to create a predetermined atmosphere inside the refrigerator. It is characterized by comprising a drying chamber that dries the target food stored in the chamber to a predetermined moisture content by setting the temperature and humidity to .
According to such a structure, the food can be safely dried without lowering the commercial value of the food or causing deterioration.

JP-A-3-148588 Utility Model Registration No. 3223052 Japanese Utility Model Laid-Open No. 60-155891 JP-A-2002-349496 JP 2018-162891 A

The invention disclosed in Patent Document 1 does not require the transfer work of the bamboo steamer, so that the boiled raw fish placed on the bamboo steamer can be dried efficiently, but there is no idea of using a plurality of drying carts. Therefore, when a plurality of drying trucks are placed in the dryer, it is considered that it is not possible to deal with the uneven drying of the dried sardine raw fish that may occur in the trucks arranged downstream of the horizontal air flow of the drying air.
In addition, in the device disclosed in Patent Document 2, when the dry air discharged from the discharge duct rises, it passes vertically through a plurality of drying trays mounted on each carriage, so that it is arranged on each drying tray. Although an effect of uniformly drying the material to be dried is exhibited, this effect is not exhibited in a truck-type dryer having a structure in which discharge ducts are not installed below a plurality of trucks. That is, in the present invention, when dry air is supplied as a horizontal air flow from the side to a plurality of carriages arranged in a row inside the drying chamber in order from a location near the heating chamber, this horizontal air flow is applied. There is a problem that uneven drying of the material to be dried that occurs in the lower part of the carriage on the downstream side of the airflow cannot be dealt with.

In the device disclosed in Patent Document 3, although it is possible to send dry air from the side to a plurality of carriages arranged in a row between the intake grille and the blowout grille, the intake grille alone can blow dry air from the blower. Since it is difficult to suppress the floating of the dry air generated in the lower part of the distant truck, it is highly possible that uneven drying of the material to be dried due to it cannot be suppressed.
In addition, in the invention disclosed in Patent Document 4, the air sent out from the blower installed in the upper part of the drying chamber passes through the inside of the pallet truck placed far from the blower and is placed near the blower. After passing through the inside of the pallet truck, it circulates in the drying chamber so that it returns to the blower again, and is structured to dry the plums installed inside the pallet truck. Since there is no mechanism to prevent the air from floating at the bottom of the pallet truck, there is a high possibility that uneven drying of the plums will occur inside the pallet truck.
Furthermore, in the invention disclosed in Patent Document 5, the mist-like dew point saturated air sent to the accommodation area by the circulation fan has a structure in which it passes through the inside of the three trucks substantially horizontally. Since no mechanism is provided to prevent the dew point saturated air from floating in the lower part of the carriage, it is considered that uneven drying of the food to be dried caused by this cannot be suppressed.

The present invention has been made in response to such a problem, and has a structure in which dry air is passed as a horizontal airflow through a plurality of trucks arranged in a row from a point near the heating chamber. It is possible to prevent floating of the dry air at the lower part of the carriage arranged on the downstream side of the horizontal air flow, uniformly dry the materials to be dried accommodated in all the carriages, and keep the manufacturing cost low. It is an object of the present invention to provide a trolley type dryer and a trolley with a wind direction plate used therefor.

In order to achieve the above object, a first invention is a carriage with a wind direction plate used for drying an object to be dried with a horizontal stream of heated dry air, comprising a rectangular top plate and a bottom plate, Casters installed on the underside of the bottom plate, connecting members installed parallel to the vertical direction to connect the top and bottom plates, and supports installed on the connecting members between the top and bottom plates to hold the cover horizontally. and a drying tray for storing the dried material, and the top plate is provided with a horizontally protruding wind direction plate.
In the carriage with wind direction plate of such a structure, when heated dry air is horizontally supplied in the drying chamber of the trolley type dryer, part of the dry air that has passed through the inside of the carriage is below the wind direction plate. By being held down, it has the effect of suppressing the floating of the dry air in the lower part.

In a second invention based on the first invention, the wind direction plate is provided so as to be rotatable from a state in which it is folded so as to overlap with the top plate or under the top plate until an angle formed with the top plate reaches 180 degrees. It is characterized by
In addition to the function of the first invention, in the truck with wind deflector of such a structure, when the wind deflector is not used, the wind deflector can be folded over or under the top plate so that the wind deflector is horizontal from the truck. It has the effect of canceling the protruding state.

A third invention is characterized in that in the first invention, the wind direction plate is provided on the top, inside or bottom of the top plate so as to slide and horizontally protrude.
In the bogie with wind deflector of such a structure, in addition to the function of the first invention, when the wind deflector is not used, the wind deflector can be slid along the top plate so that the wind deflector can be horizontally positioned from the bogie. It has the effect of canceling the protruding state.

A fourth invention is characterized in that in the second invention, there is provided means for limiting the rotatable range of the wind direction plate.
In addition to the effects of the second invention, the wind deflector-equipped carriage having such a structure projects the wind deflector to the downstream side of the horizontal airflow of the dry air in a state of being arranged at the most downstream side of the horizontal airflow of the dry air. It has an effect that the wind direction plate and the top plate always form a constant angle when the wind direction plate and the top plate are rotated.

A truck-type dryer according to a fifth aspect of the invention includes a heating chamber and a drying chamber which are connected to each other via a circulation duct and a discharge duct, a rectangular top plate and a bottom plate, and casters installed on the bottom surface of the bottom plate. a connecting member installed in parallel with the vertical direction to connect the top plate and the bottom plate; and a drying tray that is horizontally held by a support installed on the connecting member between the top plate and the bottom plate and stores the material to be dried. and, installed between a plurality of trucks arranged in a row in order from the point closest to the discharge duct inside the drying chamber, and the truck arranged closest to the heating room and the discharge duct rectifying means for dividing the dry air discharged from the discharge duct into a plurality of horizontal air currents, and at least one of the plurality of trucks positioned at the most downstream side of the horizontal air currents is one of the first invention to the first invention. 4. It is characterized by being a carriage with a wind direction plate according to any one of the inventions of 4.
In the trolley-type dryer having such a structure, in addition to the same function as the trolley with wind direction plate according to any one of the first to fourth inventions, the horizontal airflow of the dry air passing through the inside of the trolley It has the effect that the flow rate of the air is less likely to fluctuate in the vertical direction of the truck.

A sixth invention is characterized in that in the fifth invention, the straightening means comprises a perforated plate.
In the trolley-type dryer having such a structure, the effect of the fifth aspect of the invention is exhibited due to the inexpensive structure.

According to the first invention, it is possible to uniformly dry all the objects to be dried accommodated in the drying tray without causing uneven drying even in the lower part. Further, since the structure of the wind direction plate is simple, according to the first invention, it is possible to keep the manufacturing cost low.

According to the second invention, it is possible to eliminate the projections that hinder the storage and transportation of the truck, so in addition to the effects of the first invention, the storage space is saved and the workability during transportation is improved. It has the effect of

According to the third invention, it is possible to eliminate the projections that hinder the storage and transportation of the truck, so that the second invention has the effect of saving the storage space and improving the workability during transportation. It is similarly exhibited by a structure different from that of the second invention.

According to the fourth invention, when the wind direction plate in the carriage with the wind direction plate disposed at the most downstream side of the horizontal airflow of the dry air is rotated so as to protrude downstream of the horizontal airflow of the dry air, the wind direction plate and the Since the top plate always forms a constant angle, in addition to the effect of the second invention, the effect that the materials to be dried stored in all the carriages can be uniformly dried can be obtained for each product (carriage with wind direction plate). It works stably and reliably without fluctuations.

According to the fifth invention, it is possible to uniformly, stably and reliably dry the objects to be dried accommodated in all the carriages without causing variations among products (carriage type dryers). Moreover, since the production cost of the carriage with wind direction plate is low, the production cost of the entire dryer can be kept low.

According to the sixth invention, the effect of the fifth invention that the manufacturing cost of the truck-type dryer can be kept low is exhibited even more.

(a) is a schematic diagram showing the internal structure of the trolley-type dryer according to the first embodiment of the present invention, (b) and (c) are trolleys with wind direction plates shown in FIG. 1 is a side view and a front view of FIG. 1(a) is a top view of the carriage with wind deflector shown in FIG. 1(a), and FIG. 1(b) is an enlarged view of a portion surrounded by a broken line in FIG. 1(b). (a) is a diagram showing a state in which the wind direction plate of the carriage with wind direction plate at the most downstream side of the horizontal airflow of dry air in FIG. 1(a) is projected downstream of the horizontal airflow of dry air; It is the figure which expanded the part enclosed with the broken line in the same figure (a). (a) and (b) are diagrams showing a first modification and a second modification of the trolley dryer shown in FIG. 1 (a), respectively, and (c) and (d) are diagrams It is the figure which showed the modification of the wind direction plate and the truck with a wind direction plate shown to 2 (a). (a) is a schematic diagram showing the internal structure of a trolley-type dryer according to a second embodiment of the present invention, and (b) and (c) are side views of the trolley shown in FIG. It is a figure and a front view. (a) is a schematic diagram showing the internal structure of a general trolley-type dryer, and (b) and (c) are a side view and a front view of the trolley shown in (a), respectively. (a) and (b) are the figures which showed typically the flow of the air in the inside of the truck-type dryer shown to Fig.6 (a).

The structure of the trolley type dryer of the present invention, the trolley with air deflector used therein, and the actions and effects exhibited based thereon will be specifically described with reference to FIGS. 1 to 5. FIG.
In addition, since the trolley-type dryer of the present invention has a structure in which a plurality of trolleys are arranged in a row in order from a location near the heating chamber in the drying chamber, in this specification, a location near the heating chamber in the drying chamber and the location farthest from the heating chamber are referred to as "upstream" and "downstream", respectively, and the location furthest from the heating chamber is referred to as "most downstream". In addition, the side of the truck that is open for inserting the drying tray is called the "front" or "back", and the side that is connected to the "front" and "back" and parallel to the vertical direction is called the "side". shall be Further, in Examples 1 and 2, the case where three carriages or carriages with wind direction plates are arranged in a row in the drying chamber is taken as an example, but the action and effect of the present invention described below are as follows. The same effect can be obtained when three or more carriages or carriages with wind direction plates are arranged in a plurality of rows in the direction perpendicular to the plane of FIG. 1 or 5 in the drying chamber.

FIG. 1(a) is a schematic diagram showing the internal structure of a truck-type dryer 1a according to the first embodiment of the present invention, and FIGS. ) is a side view and a front view of carriages 2a to 2c with wind direction plates shown in FIG. FIG. 2(a) is a top view of the carriages 2a to 2c with wind direction plates shown in FIG. 1(a), and FIG. It is an enlarged view.
In addition, in order to avoid complication of the drawing in FIG. Only the symbols are attached. Further, the components already described with reference to FIG. 6 are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 1(a), the truck-type dryer 1a has a structure in which the trucks 54a-54c in the truck-type dryer 50 already described with reference to FIG. there is The carriages 2a to 2c with wind direction plates all have the same structure, but for the sake of convenience, they are numbered "2a", "2b", and "2c" in order from the side closest to the heating chamber 52. As shown in FIG.
As shown in FIGS. 1(b) and 1(c), the carriages 2a to 2c with wind direction plates are the carriages 54a to 54c already described with reference to FIG. and rear ends (ends on the rear side) are respectively attached via hinges 3, and square members 5 are installed on the wind direction plates 4. As shown in FIG.

As shown in FIG. 2(a), two hinges 3 are attached to the front and rear ends of the top plate 55a so that the rotation shafts are parallel to the edges of the top plate 55a. Via these two hinges 3, 3, the wind direction plate 4 is connected to both ends of the top plate 55a. In addition, the square member 5 rotates around the rotation axis of the hinge 3 as shown by the arrow in FIG. protrudes forward or rearward from the carriages 2a to 2c with wind direction plates and is parallel to the top plate 55a. It is
In other words, the wind direction plate 4 is configured to be rotatable from the state in which it is folded so as to overlap the top plate 55a until the angle formed with the top plate 55a reaches 180 degrees. At this time, the square member 5 functions as means for limiting the rotatable range of the wind direction plate 4 so that the angle of rotation of the direction plate 4 does not exceed 180 degrees.

In this embodiment, the rectangular timber 5 is installed on the air deflector 4, but it can be installed on the end side of the top plate 55a instead of the air deflector 4. FIG. However, if the square timber 5 is installed on the end side surface of the top plate 55a, the square timber 5 always protrudes forward or rearward from the carriages 2a to 2c with the wind direction plate. If installed, by folding the wind direction plate 4 so that it overlaps the top plate 55a when the wind direction plate 4 is not used, the square timber 5 can move in either direction forward or behind the trucks 2a to 2c with the wind direction plate. It has the advantage of being in a non-protruding state.
Also, in this embodiment, the square timber 5 is used as means for limiting the rotatable range of the wind direction plate 4, but the above means is not limited to the square timber 5. FIG. That is, when the angle formed by the wind direction plate 4 and the top plate 55a reaches 180 degrees, a part of the top plate 55a abuts on the end side surface of the top plate 55a to suppress further rotation of the wind direction plate 4. Therefore, instead of the rectangular timber 5, a plate or a block can be used as the above means.
Further, instead of installing the square member 5, a hinge having an opening angle limiting function that does not rotate more than 180 degrees can be used as the hinge 3.
In addition, the carriages 2a to 2c with the wind direction plate are installed so as to be rotatable from the state where the wind direction plate 4 is folded under the top plate 55a until the angle formed with the top plate 55a reaches 180 degrees. It can be.
Furthermore, in the present embodiment, the bar 55c is used as a connecting member for connecting the top plate 55a and the bottom plate 55b, but the bar is not limited to the bar 55c. , other shapes, such as a plate-like connecting member.

Fig. 3(a) is a diagram showing a state in which the wind direction plate 4 of the carriage 2c with wind direction plate at the most downstream side of the horizontal airflow of dry air in Fig. 1(a) is protruded to the downstream side of the horizontal airflow of dry air. FIG. 3(b) is an enlarged view of the portion surrounded by the dashed line in FIG. 3(a). The arrows indicating the flow of air (dry air and moist air) inside the drying chamber 53 already described with reference to FIGS. Description is omitted.
In the truck-type dryer 1a shown in FIG. 1(a), the dry air sent to the drying chamber 53 through the discharge duct 51b as indicated by arrows A and B in FIG. After being divided into horizontal air currents, the air is supplied from the front side into the carriages 2a to 2c with wind direction plates. As shown in FIG. 3(a), among the carriages 2a to 2c with airflow direction plates carried into the drying chamber 53, the wind direction installed on the top plate 55a of the carriage 2c with airflow direction plates disposed on the most downstream side of the horizontal airflow of the dry air. When the plate 4 protrudes toward the downstream side of the horizontal airflow of the dry air, part of the dry air that has passed through the inside of the carriage 2c with wind direction plate is suppressed below the wind direction plate 4. 3(a) and 3(b), the carriages 2b and 2c do not float, and go straight as indicated by arrows G in FIGS. 3(a) and 3(b).
That is, in the trolley-type dryer 1a, the wind direction plate 4 installed on the wind direction plate-equipped trolley 2c arranged at the most downstream side of the horizontal airflow of the dry air is protruded downstream of the horizontal airflow of the dry air. As a result of suppressing floating of the dry air in the lower part of the carriages 2b and 2c with wind direction plates arranged on the downstream side of the horizontal airflow, sufficient dry air is supplied to the place.
Therefore, according to the trolley-type dryer 1a, all the trolleys with wind direction plates 2a to 2c can be dried without causing uneven drying even in the lower portions of the trolleys with wind direction plates 2b and 2c arranged on the downstream side of the horizontal airflow of the dry air. The accommodated material to be dried can be uniformly dried. Such an effect is obtained by the airflow direction plate 4 provided so as to protrude downstream of the horizontal airflow of the dry air with respect to the top plate 55a of the carriage 2c with the airflow direction plate disposed on the most downstream side of the horizontal airflow of the dry air. Since it is based on the trolley type dryer 1a, it is possible to keep the manufacturing cost low.

In addition, in the trolley-type dryer 1a, when the wind direction plate 4 is not used in the carts 2a to 2c with wind direction plates, the wind direction plate 4 is folded over the top plate 55a so that the wind direction plate 4 is positioned downstream of the horizontal airflow of the dry air. Since the protruding state is eliminated, workability is good when the carriages 2a to 2c with wind direction plates are carried into the drying chamber 53. As shown in FIG. Furthermore, in the trolley-type dryer 1a, the trolleys 2a to 2c with airflow direction plates are provided with the airflow direction plates 4 at the front and rear ends of the top plate 55a. Direction is not limited. Therefore, according to the trolley-type dryer 1a, the trolleys 2a to 2c with wind direction plates can be carried into the drying chamber 53 efficiently. In the trolley-type dryer 1a, the rotatable range of the wind direction plate 4 is restricted by the square member 5, and the wind direction plate 4 of the wind direction plate-equipped trolleys 2a to 2c is projected downstream of the horizontal airflow of the dry air. Since the wind direction plate 4 and the top plate 55a always form a constant angle when the drying machine is rotated to , the effect that all the materials to be dried can be uniformly dried can be achieved without variations for each product (trolley type dryer). is stably and reliably demonstrated.

Furthermore, since the trolley-type dryer 1a is provided with a perforated plate 60 that functions as a rectifying means that divides the dry air discharged from the discharge duct 1b into a plurality of horizontal air currents, the dry air passes through the interior of the trolleys 2a to 2c with wind direction plates. The flow rate of the horizontal airflow of the dryer is less likely to fluctuate in the vertical direction. Therefore, according to the trolley-type dryer 1a, it is possible to uniformly, stably and reliably dry the objects to be dried accommodated in all the trolleys without causing variations for each product (truck-type dryer). The effect is exhibited more. In addition, since such an effect is exhibited by a member having a simple structure such as the perforated plate 60, the effect of reducing the manufacturing cost can be further exhibited in the trolley-type dryer 1a.

In addition, since the operation and effect of the above-mentioned trolley type dryer 1a are exhibited based on the structure of the wind direction plate equipped trolleys 2a to 2c, the wind direction plate equipped trolleys 2a to 2c of the present invention are the same as the trolley type dryer 1a. has the action and effect of

FIGS. 4(a) and 4(b) are diagrams showing a first modification and a second modification, respectively, of the truck-type dryer 1a shown in FIG. 1(a), and FIG. 4(c). and FIG. 4(d) are diagrams showing modifications of the wind deflector and the truck with the wind deflector shown in FIG. 2(a), respectively.
In the first modification shown in FIG. 4(a), in trucks 2a to 2c with airflow direction plates of a truck type dryer 1a (see FIG. 1(a)), the airflow direction plate 4 is attached to the rear end of the top plate 55a of the frame 55. It is a structure in which only According to such a structure, there is an advantage that the manufacturing cost of the carriages 2a to 2c with wind direction plates is reduced as compared with the case of the carriage type dryer 1a. However, when the carriages 2a to 2c with airflow direction plates are arranged inside the drying chamber 53, the carriages 2a to 2c with airflow direction plates are carried into the drying chamber 53 compared to the trolley type dryer 1a because they are restricted in the front and rear directions. workability at the time of
The second modification shown in FIG. 4(b) is characterized in that trucks 54a and 54b are used instead of the wind direction plate equipped trucks 2a and 2b in the truck type dryer 1a (see FIG. 1(a)). do. According to such a structure, the manufacturing cost is reduced by replacing the carriages 2a and 2b with wind direction plates with the carriages 54a and 54b. However, since it is necessary to always arrange the carriage 2c with the airflow direction plate at the most downstream side of the horizontal airflow of the dry air, compared with the carriage type dryer 1a, when the carriages 54a and 54b and the carriage 2c with the airflow direction plate are carried into the drying chamber 53, workability is reduced.
Furthermore, in the trolley-type dryer 1a, all the trolleys arranged in the drying chamber 53 are trolleys 2a to 2c with wind direction plates, but the trolley-type dryer 1a is not limited to such a structure. For example, at least one unit on the most downstream side of the horizontal airflow of dry air may be a carriage with a wind direction plate.

As shown in FIGS. 4(c) and 4(d), each of the carriages 2a to 2c with wind direction plates includes a wind direction plate 8 having protrusions 8a, 8a on both sides instead of the wind direction plate 4, and A guide member consisting of a rod-shaped body having parallel guide grooves 7a, a stopper 7b that can be engaged with the projection 8a, and a stopper 7b that can be engaged with the protrusion 8a. 7, and when the wind direction plate 8 is slid along the guide member 7, the structure may be such that the wind direction plate 8 projects horizontally forward or rearward of the trucks 2a to 2c with wind direction plates. In this case, the wind direction plate 8 exerts the same action and effect as the wind direction plate 4, and when the wind direction plate 8 is slid along the top plate 55a, the state where the wind direction plate 8 protrudes from the trucks 2a to 2c with the wind direction plate. It is possible to eliminate the protrusions that hinder the storage and transportation of the carriages 2a to 2c with wind direction plates, so that the storage space is saved and the workability during transportation is improved.
In FIG. 4(d), the airflow direction plate 8 is installed above the top plate 55a, but the above-described actions and effects are the same when the airflow direction plate 8 is installed inside or below the top plate 55a. is demonstrated in

FIG. 5(a) is a schematic diagram showing the internal structure of a truck-type dryer 1b according to the second embodiment of the present invention, and FIGS. ) is a side view and a front view of the wind direction plate equipped truck 2d shown in FIG.
As shown in FIG. 5(a), the trolley-type dryer 1b includes trolleys 54a and 54b and a trolley with wind direction plates 2d instead of the trolleys 2a to 2c with wind direction plates in the trolley type dryer 1a (see FIG. 1(a)). structure.
As shown in FIGS. 5(b) and 5(c), the wind direction plate carriage 2d is the wind direction plate carriage 2c already described with reference to FIGS. 1(b) and 1(c). and the wind direction plate 4 is attached to the rear end via the hinge 3, and the wind direction plate 4 is attached to the rear end side surface of the top plate 55a so that the wind direction plate 4 protrudes downstream of the horizontal airflow of the dry air. The end surface of the base end 4b is fixed, and the reinforcing member 6 is installed so as to connect the base end 4b of the wind direction plate 4 and the rear end side surface of the top plate 55a. Since the reinforcing member 6 is used for the purpose of increasing the connection strength of the wind direction plate 4 to the rear end side surface of the top plate 55a, the wind direction plate 4 is thick and the connection strength to the rear end side surface of the top plate 55a is low. Installation of the reinforcing member 6 may be omitted if sufficient space is secured.

In the truck-type dryer 1b having such a structure, part of the dry air that has passed through the insides of the trucks 54a and 54b and the wind direction plate-equipped truck 2d is suppressed below the wind direction plate 4. Even in the lower part of the carriage 54b and the carriage with wind direction plate 2d arranged on the downstream side of the horizontal airflow, the operation of going straight without floating up The effect of being able to uniformly dry the material to be dried accommodated in the carriages 54a and 54b and the carriage 2d with wind direction plates is exhibited with a structure that is less expensive than the carriage type dryer 1a. Therefore, according to the truck-type dryer 1b, it is possible to reduce the manufacturing cost more than the truck-type dryer 1a.

Since the operation and effect of the trolley type dryer 1b are exhibited based on the structure of the trolley with air deflector 2d, the trolley with air deflector 2d of the present invention has the same effect and effect as the trolley type dryer 1b. .

In the present invention, a large amount of food is dried at one time using a dryer having a structure in which a plurality of drying trays on which food such as vegetables and fruits are arranged are carried into a drying chamber while being mounted on a trolley. can be applied to

DESCRIPTION OF SYMBOLS 1a, 1b... Carriage type dryer 2a-2d... Carriage with a wind direction plate 3... Hinge 4... Wind direction plate 4a... Tip 4b... Base end 5... Rectangular material 5a... Side surface 6... Reinforcement member 7... Guide member 7a... Guide groove 7b... Stopper 8 wind direction plate 8a projection 50 trolley dryer 51a circulation duct 51b discharge duct 52 heating chamber 53 drying chamber 53a top plate 53b, 53c side plate 54a to 54c trolley 55a top plate 55b Bottom plate 55c Bar 56 Caster 57a Drying tray 57b Support 58 Blower 59 Combustion furnace 60 Perforated plate

Claims (6)

A carriage used for drying material to be dried with a horizontal stream of heated drying air,
a rectangular top plate and bottom plate;
casters installed on the lower surface of the bottom plate;
a connecting member installed parallel to the vertical direction and connecting the top plate and the bottom plate;
a drying tray that is horizontally held by a support installed on the connecting member between the top plate and the bottom plate and stores the material to be dried;
The top plate includes a wind direction plate that can horizontally protrude from the end ,
The wind direction plate-equipped truck , wherein the top plate is variable in length by protruding the wind direction plate from the end of the top plate in the horizontal direction . The wind direction plate is provided so as to be rotatable from a state in which it is folded so as to overlap above or below the top plate until an angle formed with the top plate reaches 180 degrees. A trolley with a wind direction plate described in . 2. The truck with wind deflector according to claim 1, wherein the wind deflector is provided above, inside or below the top plate so as to slide and horizontally protrude. 3. The truck with wind deflector according to claim 2, further comprising means for limiting a rotatable range of said wind deflector. a heating chamber and a drying chamber respectively connected to each other via a circulation duct and a discharge duct;
a rectangular top plate and bottom plate;
casters installed on the lower surface of the bottom plate;
a connecting member installed parallel to the vertical direction and connecting the top plate and the bottom plate;
a drying tray that is horizontally held between the top plate and the bottom plate by a support installed on the connecting member and stores the material to be dried, and is located near the discharge duct inside the drying chamber A plurality of trucks arranged in a row in order from
straightening means installed between the trolley placed closest to the heating chamber and the discharge duct, and dividing the dry air discharged from the discharge duct into a plurality of horizontal air currents;
5. A truck-type dryer, wherein at least one of the plurality of trucks positioned at the most downstream side of the horizontal airflow is the truck with a wind direction plate according to any one of claims 1 to 4. 6. The trolley dryer according to claim 5, wherein said straightening means comprises a perforated plate.

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