JP2019184081A - Hot air dryer, and its method - Google Patents

Abstract

To provide a device capable of repeating opening/closing an opening/closing door of a dryer without stopping a hot air dryer, and a method of sending air.SOLUTION: The hot air dryer is structured as follows: a housing 1 is constituted of one chamber 100 and the other chamber 101, the one chamber 100 is provided with a hot air generation unit and a bypass, the other chamber 101 is provided with a plurality of shelves 23 for trays, a first communication passage 300 and a second communication passage are formed on the upper part and the lower part of an inner wall 3 respectively that separates the one chamber 100 from the other chamber 101, a first door and a second door controlled by an opening/closing door of the housing 1 are provided therein, and the first door opens/closes the second communication passage while the second door opens/closes the bypass to control hot air A and/or sucked/cooled air. Thereby, control of air temperature and drying can efficiently be performed.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a hot air dryer. The details are mainly dried foods such as shiitake mushrooms, other agricultural products, etc., or seafood, and other processed foods (processed products). It is.

  In a normal hot air dryer, during operation, that is, during so-called drying, the opening / closing door (opening / closing door for controlling opening / closing of the other room described in this embodiment) is not frequently opened and closed repeatedly. However, in dry matter, shrimp (tray) must be taken out during drying, and the dry matter in this shrimp may have to be stirred, especially with dry matter after seasoning. The sticking causes deterioration of shape / taste, quality reduction, and the like, resulting in, for example, a price reduction. Therefore, this kind of work is a necessity.

  In such a situation, when the open / close door of the hot air dryer is opened, the temperature of the hot air is decreased, and ignition and combustion are repeated with the intention of recovering the temperature decrease. Heat exchange tubes (heat generation furnace) / burners are heated to a high temperature or fuel loss occurs. In the worst case, heat exchange tubes / fan burners, etc. are rapidly cooled and / or switched frequently, hot air, etc. There is a possibility of breaking at.

  Moreover, in order to avoid the above-described various occurrences, for example, the opening of the open / close door is originally required to be performed after the burner is cut and / or the temperature of the heat exchange cylinder or the like (hot air generating unit) is lowered. . However, when such an operation is performed, the dry matter (processed object) is cooled, and the quality of the dry matter or the efficiency is deteriorated due to the cooling of the dry matter.

  Based on the above situation, prior art will be examined. In the hot air dryer, there has been no invention that controls the opening / closing of the door and the flow of hot air, air, or the like. Regarding general intake and exhaust of hot air, there is a document described in Japanese Patent Application Laid-Open No. 2006-337003 (referred to as Document (1)). This document (1) is a “dryer and drying control method”, which has a structure in which a large number of drying chamber units can be installed, and intake / exhaust control is performed by upper and lower passages and dampers provided in the passages. Control structures and methods are disclosed. The flow of the hot air and the temperature-decreasing hot air is explained as follows based on paragraph 0041 and FIGS. That is, in the initial stage of drying shown in FIG. 7, all the exhaust chambers (12) are exhausted from the exhaust port (34 to the outside of the machine, and in the middle stage of drying shown in FIG. 8, the hot air return port (36), Through the circulation port (35), ½ of the total amount is circulated to and from the hot air generator (11), but is circulated in the latter stage of drying shown in Fig. 9. However, the flow and control of such hot air It is general, and is not a structure to be described later and a hot air control mechanism intended by the present invention.

  In addition, there is a document described in Japanese Patent Application Laid-Open No. 2012-211711 (referred to as document (2)) as prior art in general fields without limiting the field. According to Paragraph 0024, “the exhaust device provided in the draft chamber (1) is an open / close interlock mechanism (40) provided between the open / close damper (23) and the front door (16). By this opening / closing interlock mechanism (40), the opening / closing operation of the opening / closing damper (23) is interlocked with the opening / closing operation of the front door (16), and the opening / closing damper (23). The opening of the exhaust duct (20) is set to change at a rate equal to the opening of the opening (15) due to opening and closing of the front door (16), thereby opening the front door (16). Regardless, there is a description that the wind speed by the exhaust in the processing chamber (5) can be kept constant. " However, the open / close interlock mechanism (40) is not limited to the operation of the open / close damper (23) and the exhaust duct (20), and the structure (described later) intended by the present invention is the same as the document (1). It is not a hot air control mechanism.

JP 2006-337003 A JP 2012-211711 A

In view of the above, the present invention proposes a device and an air blowing method that can repeatedly open and close the door without stopping the hot air dryer. That is, (a) During drying, hot air is sent to the other room (drying room), and at the moment when the open / close door is opened, only in one room (machine room = heat generating furnace, ie, burner, heat exchange cylinder, etc.) Bypass passage) A mechanism for circulation. (B) Advantages are: No mechanical damage due to rapid cooling, ON / OFF switching, etc. 2. Since cold air does not enter the object to be processed, the temperature of the object to be processed can be maintained. 3. The necessary hot air can be obtained from the moment the door is closed. 4). Drying time can be shortened. 5. Drying can be done without worrying about opening and closing the door. (C) The point of structure (mechanism) is 6. By providing a bypass passage, for example, it is a ventilation (control) method that can form a bypass passage by closing the second door at the moment when the opening and closing door is opened. When the opening and closing door is closed, ON / OFF in the other room The control is a structure that enables ON / OFF control in one room when the door is opened.

  The present invention discloses the inventions of claims 1 to 8 in order to achieve the above-mentioned (a) to (c) and exhibit unprecedented features.

In the first aspect of the present invention, the housing includes one room having a suction port with a damper and the other room having an exhaust port with a damper, and the upper and lower sides of an inner wall that partitions the one room and the other room. The first and second connecting passages are formed, and the first connecting door is provided in the second connecting passage. The first door is linked to the opening / closing door of the other room by a link mechanism. The second connecting passage can be closed with the first door,
On the other hand, a bypass passage is formed in the room, the bypass passage is opened and closed by the second door, and the second door can close the bypass passage when the first door is opened,
On the other hand, a hot air generating unit is formed in the room, and the hot air generating unit includes a burner with a fan, a heat exchange cylinder, and a fan that controls air and hot air flow.
In the other room, set the shrimp containing the object to be processed,
It is a hot air dryer.

  Accordingly, in claim 1, (a) during drying, hot air is sent to the other room, and at the moment when the door is opened, the mechanism is circulated only in the one room. By providing a bypass passage, for example, it is a blower mechanism that can form a bypass passage by closing the second door at the moment when the door is opened. When the door is closed, ON / OFF control in the other room is opened and closed. When the door is opened, ON / OFF control in one room is possible. The effect is as follows. No mechanical damage due to rapid cooling, ON / OFF switching, etc. 2. Since cold air does not enter the object to be processed, the temperature of the object to be processed can be maintained. 3. The necessary hot air can be obtained from the moment the door is closed. 4). Drying time can be shortened. 5. Drying can be done without worrying about opening and closing the door. That is.

  In the second aspect of the invention, the suction air introduced from the suction port into the hot air generating unit is converted into hot air by the hot air generating unit, and then reaches the other room through the second connecting passage and finishes working in the other room. The air thus cooled down is a hot air dryer that can be exhausted from the exhaust port of the other room to the outside of the housing.

  As a result, in claim 2, it is possible to ensure the same mechanism and structure features as in claim 1 described above, or to expect the effects thereof.

  According to a third aspect of the present invention, the bypass passage is provided on one side of the one room so as to be attached to the heat exchanging cylinder, the upper and lower sides are open, and the lower opening can be opened and closed by the second door. It is a dryer.

  Thus, in claim 3, a bypass passage structure capable of achieving the mechanism and effect of claims 1 and 2 can be proposed.

  The invention according to claim 4 is the hot air dryer in which the second door is configured to close the bypass passage when the first door is opened via the link mechanism.

  Thereby, in Claim 4, the structure of the link mechanism which connects the 1st and 2nd door which can achieve the mechanism and effect of Claim 1 * 2, and both can be proposed.

  In the invention of claim 5, the link mechanism is fixed to one end of the first hook provided in the bracket provided in the column of the casing, the first link provided in the first hook, the first link, and the like. The end was provided via the second link secured to the second door, the second link pivotally supported on the second link, the third link provided on the second link, and the third link on the third link. A hot air drier that includes a fourth bowl and secures the fourth bowl to the side surface of the first door.

  Thereby, in claim 5, the structure of the link mechanism which can achieve the mechanism and effect of claims 1 and 2 can be proposed.

  In the invention of claim 6, the casing is a hot air dryer made of a total stainless steel material.

  Thereby, in Claim 6, the specified raw material which can achieve the mechanism and effect of Claim 1 * 2 can be proposed.

In the invention of claim 7, the casing is partitioned in one room having a suction port with a damper and the other room having an exhaust port with a damper, and an inner wall that divides the one room and the other room is formed. By forming the first and second connecting passages on the top and bottom, the air introduced into one room is converted into hot air in one room, introduced into the other room through the second connecting passage, applied with hot air, A process of drying the object to be dried in the room and exhausting the temperature-decreasing hot air that has been lowered by the drying process to the outside from the exhaust port,
When the other room is opened with the open / close door, the second connecting passage is closed with the second door, and at the same time, a bypass passage is formed in the one room, and the bypass passage is used to remove the hot air from the one room in the bypass passage. The hot air dryer is provided with a hot air and / or a burner in one room and / or a step of avoiding a temperature drop of the heat exchanger.

  Accordingly, in claim 7, (a) during drying, hot air is sent to the other room, and when the door is opened, the mechanism is circulated only in the one room. By providing a bypass passage, for example, when the opening and closing door is opened, it is a blowing method that can form a bypass passage by closing the second door. When the opening and closing door is closed, ON / OFF control in the other room is opened and closed When the door is opened, ON / OFF control in one room is possible. The effect is as follows. No mechanical damage due to rapid cooling, ON / OFF switching, etc. 2. Since cold air does not enter the object to be processed, the temperature of the object to be processed can be maintained. 3. The necessary hot air can be obtained from the moment the door is closed. 4). Drying time can be shortened. 5. Drying can be done without worrying about opening and closing the door. That is.

  In the invention of claim 8, the hot air is an air blowing method for a hot air dryer that can secure a certain heat by circulating and transferring through the bypass passage except for the temperature drop in the drying process in the other room. .

  Thereby, in Claim 8, the ventilation method which carries out the circulation transfer of the bypass channel which can achieve the mechanism and effect of Claim 7 can be proposed.

An overhead front perspective view showing the whole of the present invention In FIG. 1, an overhead front perspective view showing the other room opened by opening the door and seeing through the interior. In FIG. 1, an overhead front perspective view in which the door is opened and the inside is seen through. In FIG. 1, the overhead perspective view showing the inside of the room and showing one room An overhead front perspective view of the one room shown in FIG. 4 extracted and seen through. 4 is an overhead front perspective view of the one room shown in FIG. 4 with a partially cutaway view showing the housed state of the fan with the outer wall and the front door of the present invention opened. An overhead front perspective view illustrating the process of cutting along the vertical direction to explain the flow of the intake air, hot air, and the cooled air from one room to the other room, and showing the essential parts inside. On the other hand, a vertical perspective view of the hot air flowing through the room and the bypass passage is cut in the vertical direction to explain the process of partially missing, showing the main part inside In FIG. 8, an enlarged front perspective view of the bottom part of the housing, showing the components provided at the bottom part, the first and second doors, and the link mechanism. FIG. 9 is a partial perspective view of the first and second doors shown in FIG. 9 and the link mechanism. An overhead front perspective view of the state in which the first and second doors and the link mechanism shown in FIG. 9 are operated to release the second connecting passage and close the bypass passage. An overhead front perspective view of the state in which the second connecting passage is closed and the bypass passage is released by the first and second doors shown in FIG.

  Reference numeral 1 denotes a casing made of stainless steel, and includes an opening / closing door 2 that opens the other room described later. The housing 1 is divided into a first room 100 and a second room 101 by the first inner wall 3, and upper and lower sides of the inner wall 3 are opened to form a first connection passage 300 and a second connection passage 301. Both the first connection passage 300 and the second connection passage 301 are connected to the one room 100 and the other room 101. That is, the second connection passage 301 is a hot air A (high-temperature air), and the first connection passage 300 is a passage of the cooling air B. C in the figure indicates the intake air.

  In addition, although the bypass passage 5 is formed in the one room 100, in this example, on one side of the one room 100, a box shape provided so as to be provided side by side with a heat exchange cylinder provided in the one room 100 will be described. In the case 500, the bypass passage 5 is preferably arranged side by side in the same direction 1 a as the open / close door 2 provided in the housing 1, and is provided in the interior 100 a of the room 100. The upper and lower sides of the bypass passage 5 are openings 5 a and 5 b, the upper opening 5 a is always an opening, and the lower opening 5 b is opened and closed by the second door 6.

  The one room 100 is provided with a device for converting the sucked air C (taken air) into the hot air B, or sucking / conveying the inner air 100a. A suction cylinder 7, a heat exchange cylinder 8, a burner 9 with a fan, and a fan 10 provided in the suction cylinder 7. Accordingly, the suction air C from the suction opening (suction port) 100 b is guided to the suction cylinder 7 → the heat exchange cylinder 8 → the second connection passage 301 and is converted into hot air A by contact with the heat exchange cylinder 8. The heat exchanging cylinder 8 is heated by the burner 9 and converts the intake air C into hot air A. Further, the space (peripheral gap) below the heat exchange cylinder 8 and the second connection passage 301 are connected. The suction cylinder 7 is indirectly connected to the suction cylinder 11 provided in the suction port 100b opened in the ceiling of the one-side room 100, and has a structure for guiding the suction air C to the suction cylinder 7 as described above. In the figure, 12 is a damper provided on the suction cylinder 11.

  Next, the other room 101 is provided with an opening 101a through which an object to be processed such as shrimp or a loading platform can be taken in and out, and an opening / closing door 2 is provided in the opening 101a. 101b is opened and closed. A large number of shrimp support shelves 22 and 23 are provided on the wall surface 3a of the inner wall 3 facing the wall surface 101c on the side surface of the interior 101. Shrimp are inserted and supported between the shelves 22 and 23. The shelves 22 and 23 are detachably arranged on the wall surfaces 101c and 3a in units of a plurality. Therefore, it is useful for cleaning or damage. An opening 101d is provided in the ceiling of the other room 101, and an exhaust pipe 101e and a damper 101f are provided in the opening 101d. Therefore, the cooled air B is exhausted to the outside with the damper 101f opened.

  The second connecting passage 301 and the bypass passage 5 on the inner wall 3 are opened and closed by the first door 30 and the second door 6. This opening and closing is, for example, the following link mechanism structure. A bracket 33 fixed to the inner wall 3 or the pillar 32, a first rod 34 provided with a branch rod 34a penetrating the bracket 33 and facing the interior 101b of the other chamber 101, and the first rod 34 A first link 35 that supports (pivots), a second rod 36 that supports one end of the first link 35 and supports the second door 6, and a second link 37 that supports the second rod 36. And a third rod 39 that relays the second link 37 and the third link 38, and a fourth rod 40 that connects the third link 38 to the second door 6.

  In the figure, D is a chimney that exhausts the combustion gas.

  The movement of the link mechanism will be described. From the state shown in FIG. 12, the bypass passage 5 is opened, and the second connection passage 301 is closed by the first door 30 (the opening and closing door 2 is opened). When the door 2 is closed, the first rod 34 is pressed in the direction B by the door 2, and the branch rod 34a, the first link 35, and the second link 37 are all rotated in the direction indicated by the arrow B. Due to the rotation of the first link 35 and the second link 37 in the direction B, the second door 6 rotates in the direction indicated by the arrow, and the bypass passage 5 is closed from the opened state in FIG. It becomes. Then, the rotation of the second link 37 pushes down the third rod 39 in the direction C. By this depression, the third link 38 rotates counterclockwise in the two directions. As the third link 38 rotates counterclockwise, the fourth rod 40 supported by the third link 38 also rotates counterclockwise in the two directions. By this rotation, the first door 30 supported by the fourth rod 40 also rotates in the counterclockwise direction of the two directions. Then, the rotation of the first door 30 opens the second connection passage 301 as shown in FIG.

  Next, the flow of air will be described with reference to FIGS. FIG. 7 illustrates the step A, and describes the flow of the intake air C, hot air A, and cooled air B. At least the damper 12 of the one-sided room 100 is opened, and the intake air C (outside air) sucked from the suction cylinder 11 reaches the heat exchange cylinder 8 (combustion cylinder) using the suction force of the fan 10 to exchange heat. Is converted into hot air A. The hot air A passes through the second connection passage 301 from the lower space of the one room 100, rises from the lower side of the other room 101, becomes the cooled air B, and the first connection passage 300 on the upper side of the other room 101. Thus, the heat exchange tube 8 is reached again. It is a drying process of an object to be processed. In this drying process, the second connection passage 301 is opened, and the bypass passage 5 is closed by the second door 6 (the state shown in FIG. 11). The damper 101f of the other room 101 is open but not limited.

  FIG. 8 illustrates the flow (circulation) of the hot air A. B, the dampers 12 and 101g are at least closed, the suction port 100b of the one room 100 and the opening 101e of the other room 101 are closed, and the housing 1 is sealed. Further, the second door 6 of the bypass passage 5 is opened, and the second connection passage 301 of the inner wall 3 is closed by the first door 30 (the state shown in FIG. 12). At the same time, the upper and lower openings 5a and 5b are opened so that the hot air A can circulate through the bypass passage 5. Therefore, the hot air A is a circulating flow of the lower opening 5b → the upper opening 5a through the suction cylinder 7 → the heat exchange cylinder 8 of the one-sided room 100, and the temperature of the hot air A can be reduced (decrease in the amount of heat). That is, generation of heat energy loss can be avoided. The suction force of the fan 10 is maintained.

  The bypass (circulation) flow of the hot air A in the one room 100 (machine room) between the bypass passage 5 and the heat exchange cylinder 8 shown in FIG. For example, when the workpiece is being dried, hot air A is sent to the other room 101 and the open / close door 2 is opened (preferably instantaneously). It is a mechanism to circulate.

  There are the following advantages.

  1. There is no damage to the machine in the machine room due to rapid cooling and / or switching of ON / OFF (for example, ON / OFF of the burner 9 or the like). 2. It is possible to prevent the temperature drop of the hot air A and achieve energy saving. 3. From the moment the door 2 is closed, the necessary hot air A can be obtained and can be quickly dried. 4). Time can be shortened and quality can be ensured. 5. Drying can be performed without worrying about opening / closing of the door 2. 6). Switching to the bypass passage 5 (drying and drying stop) is automatically switched by the opening / closing operation of the door 2. 7). In addition, the sealing degree of the one room 100 and the other room 101 by the dampers 12 and 101f can be secured.

  Each of the embodiments described above is a description of a preferred example of the present invention, and is not limited to each embodiment or drawing. Therefore, a structure in which a part of the configuration is changed within the scope of the invention, a structure capable of achieving the same characteristics and effects, and the like are within the scope of the present invention.

1 Housing 1a Direction 100 One room 100a Inside 100b Opening (suction port)
DESCRIPTION OF SYMBOLS 101 Other room 101a Opening 101b Inside 101c Wall surface 101d Opening 101e Exhaust pipe 101f Damper 2 Opening door 3 Inner wall 3a Wall surface 300 First connection passage 301 Second connection passage 5 Bypass passage 5a Upper opening 5b Lower opening 500 Case 6 Second door 7 Suction cylinder 8 Heat exchange cylinder 9 Burner 10 Fan 11 Suction cylinder 12 Damper 22 Shelf 23 Shelf 30 First door 32 Pillar 33 Bracket 34 First rod 34a Branch rod 35 First link 36 Second rod 37 Second link 38 Third Link 39 Third base 40 Fourth base A Hot air B Cooled air C Suction air D Chimney

Claims (8)

The housing has one room having a suction port with a damper and the other room having an exhaust port with a damper, and the first and second sides above and below the inner wall that divides the one room and the other room. A connecting passage is formed, and a first door is provided in the second connecting passage, and the first door is structured to be interlocked with an opening / closing door of the other room by a link mechanism, and when the opening / closing door is opened, the first door The two connecting passages can be closed with the first door,
A bypass passage is formed in the one room, the bypass passage is opened and closed by a second door, and the second door can close the bypass passage when the first door is opened,
A hot air generating unit is formed in the one room, and the hot air generating unit includes a burner with a fan, a heat exchange cylinder, and a fan that controls air and hot air flow.
In the other room, set a shrimp containing the object to be processed,
A hot-air dryer with a configuration to perform.   The suction air introduced into the hot air generation unit from the suction port is converted into hot air by the hot air generation unit, and then reaches the other room from the second connection passage and finishes working in the other room. The hot air dryer according to claim 1, wherein the cooled air can be exhausted from the exhaust port of the other room to the outside of the housing.   The bypass passage is provided on one side of the one room so as to be provided alongside the heat exchange cylinder, and is configured such that the top and bottom are open, and the lower opening can be opened and closed by the second door. The hot air dryer described in 1.   The hot air dryer according to claim 1, wherein the second door is configured to close the bypass passage when the first door is opened via the link mechanism.   The link mechanism includes a first hook penetrating a bracket provided on the column of the housing, a first link provided on the first hook, one end fixed to the first link, and the other end A second cage secured to the second door, a second link pivotally supported on the second cage, a third cage provided on the second link, and a third link provided on the third cage via a third link The hot air dryer according to claim 1, further comprising: a fourth ridge, wherein the fourth ridge is secured to a side surface of the first door.   The hot air dryer according to claim 1, wherein the casing is made of a total stainless steel material. The housing is partitioned into one room having a suction port with a damper and the other room having an exhaust port with a damper, and the first and the second are formed above and below the inner wall that divides the one room and the other room. By forming the two connection passages, the air introduced into the one room is converted into hot air in the one room, introduced into the other room through the second connection passage, and this hot air is applied to the other room. A step of drying the object to be dried in the room and exhausting the temperature-decreasing hot air cooled by the drying process to the outside from the exhaust port;
When the other room is opened with the opening / closing door, the second connecting passage is closed with the second door, and a bypass passage is formed in one room, and the bypass passage is used to remove the hot air in the one room. In this configuration, the hot air and / or the burner in the one room and / or the step of avoiding the temperature drop of the heat exchanger are circulated in the bypass passage. How to blow hot air dryer.   The blowing method of a hot air dryer according to claim 7, wherein the hot air can be secured at a constant temperature by circulating through the bypass passage except for a temperature drop in a drying process in the other room.