JP3220002U - Far-infrared dryer - Google Patents

Abstract

Disclosed is a far-infrared drying apparatus that produces a high-quality dried product in a short time by controlling the temperature and humidity in a drying chamber using a far-infrared heater, an air supply unit including a unit heater, and an exhaust unit. A far-infrared drying apparatus (1) includes a drying chamber (2) for storing a dried product to be dried, a far-infrared heater (10) for heating the dried product, a circulation unit (12) for circulating air in the drying chamber (2), and a drying chamber. 2, an air supply unit 8 for supplying outside air, an exhaust unit 9 for exhausting the air in the drying chamber 2 together with water vapor to the outside of the drying chamber 2, a temperature / humidity sensor 16, and a control device 14. The air supply unit 8 includes a unit heater for heating the outside air introduced into the drying chamber 2, and the control device 14 controls the far infrared heater 10, the air supply unit 8, and the exhaust unit 9. [Selection] Figure 1

Description

  The present invention relates to a far-infrared drying apparatus that dries steamed sweet potatoes, vegetables, and the like, which are raw materials for dried koji, by controlling the temperature and humidity with a far-infrared heater and an air supply unit equipped with a unit heater.

  2. Description of the Related Art Conventionally, an apparatus for heating and drying dried materials (vegetables, etc.) using a far infrared heater while ventilating a drying chamber has been developed. The far-infrared heater does not directly touch the heat source and the dried product, and can provide heat (electromagnetic waves) necessary for raising the temperature inside the dried product from the surface, so that the dried product can be heated quickly and uniformly by heat conduction. be able to. Due to heating by heat conduction, the difference in moisture content between the inside and the surface of the dried product is small during drying, and there is an advantage that it can be dried uniformly from the inside to the surface without drying only the surface of the dried product. .

  For example, Patent Document 1 discloses a drying apparatus including a far-infrared heater, a circulation fan, an air supply fan, an exhaust unit, and a spray watering nozzle in a drying chamber. This drying device heats the dry matter carried into the drying chamber with a far-infrared heater, circulates the internal air with a circulation fan, and forcibly ventilates the internal air with an air supply fan and exhaust unit to dry it. . Although the drying speed of the dried product greatly depends on the temperature and humidity in the drying chamber, this drying device is further equipped with a spray watering nozzle in the drying chamber, thereby adjusting the humidification conditions in the drying chamber and shortening the drying rate of the dried product. It is possible.

  Patent Document 2 discloses a drying apparatus including a far-infrared heater, a circulation fan, an air supply fan provided with a unit heater, and an exhaust unit in a drying chamber. Although the dried product is heated by a far-infrared heater, the humidity in the drying chamber is suppressed by replacing the air in the drying chamber with outside air. For this reason, the temperature and humidity in the drying chamber are greatly affected by the temperature and humidity of the outside air. This drying device is provided with a unit heater that heats the temperature of the outside air in the air supply fan, so that the drying and drying of the drying chamber can be suppressed even when the temperature of the outside air is low or the humidity is high. Things can be dried.

JP 2002-67007 A Japanese Utility Model Publication No. 2007-225216

  The drying apparatus of Patent Literature 1 can dry a dried product by irradiating far infrared rays with a far infrared heater, and can adjust humidification conditions in the drying chamber with a spray water nozzle provided in the drying chamber. However, when drying dry matter with high moisture content, such as dried persimmons, when the outside air temperature is low or the outside air humidity is high, the temperature in the drying chamber does not rise easily, Humidity may not drop easily and may take longer to dry.

  Moreover, the drying apparatus of patent document 2 can heat and dry the temperature of outside air by providing the unit heater which heats the temperature of outside air in the air supply fan, but the moisture content of the dry matter is predetermined. There is no control to make the value. Dried products, especially dried fruits and vegetables, tend to be preferred when they contain moisture to some extent, rather than being completely dried. Therefore, it is desirable that high quality dried products such as fruits and vegetables are produced so as to have a predetermined moisture content.

  In view of the above problems, the present invention controls the temperature and humidity in a drying chamber by a far infrared heater, an air supply unit equipped with a unit heater, and an exhaust unit to produce a high-quality dry product in a short time. An object is to provide an infrared drying apparatus.

In the present invention, in order to achieve the above object, a drying chamber 2 for storing dried products to be dried, a far infrared heater 10 for heating the dried products, a circulation unit 12 for circulating the air in the drying chamber 2, and a drying unit. An air supply unit 8 that supplies outside air into the chamber 2, an exhaust unit 9 that exhausts air in the drying chamber 2 together with water vapor to the outside of the drying chamber 2, a temperature / humidity sensor 16, and a control device 14. The air supply unit 8 includes a unit heater 22 that heats the outside air introduced into the drying chamber 2, and the control device 14 controls the far-infrared heater 10, the air supply unit 8, and the exhaust unit 9. A far-infrared drying apparatus is provided.
Further, the far-infrared drying apparatus further includes a machine room 3 adjacent to the drying room 2, and a control device 14 and an intake unit 15 for supplying outside air can be installed in the machine room 3. The device 14 may be configured to control the far infrared heater 10, the air supply unit 8, the exhaust unit 9, and the intake unit 15.
Furthermore, the far-infrared drying apparatus may be configured such that a mass sensor is provided on the cart 11 or the cocoon cake loaded with the dried material to be carried into the drying chamber 2.
The far-infrared drying apparatus includes two or more drying chambers 2, and one control device 14 is configured to control the far-infrared heater 10, the air supply unit 8, and the exhaust unit 9 of each drying chamber 2. be able to.

  The far-infrared drying apparatus of the present invention can control the temperature and humidity in the drying chamber by a far-infrared heater, an air supply unit, and an exhaust unit, so that dry matter can be dried efficiently and stably in a short time. Can do. In addition, since the temperature and humidity can be controlled so as to have a predetermined moisture content, a high-quality dried product can be produced.

It is a cross-sectional top view which shows one Example of a far-infrared drying apparatus. It is a vertical side view which shows one Example of a far-infrared dryer. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is the perspective view (A) and partial front view (B) which show one Example of the trolley | bogie which mounts a dried material. It is the front view (A) and side view (B) which show one Example of the air supply unit provided with the unit heater. It is a cross-sectional top view which shows the other Example of a far-infrared dryer. It is the graph which showed the relationship between the drying time when the raw material of a dried persimmon was dried using the far-infrared dryer by one Example of this invention, and the weight of a dried material. It is the graph which showed the relationship between the drying time when the raw material of a dried persimmon was dried using the conventional far-infrared drying apparatus, and the weight of a dried material.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention (hereinafter referred to as examples) will be described below with reference to the drawings. In the following drawings, common parts are denoted by the same reference numerals, and duplicate descriptions for the same reference numerals are omitted.

[Configuration of far-infrared drying apparatus 1]
First, the configuration of a far-infrared drying apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1-4 is an example of a far-infrared drying apparatus. The far-infrared drying apparatus 1 includes a drying chamber 2 that stores a dried product to be dried, a far-infrared heater 10 that heats the dried product, a circulation unit 12 that circulates air in the drying chamber 2, and outside air in the drying chamber 2. The air supply unit 8 supplies air, the exhaust unit 9 exhausts the air in the drying chamber 2 together with water vapor to the outside of the drying chamber 2, the temperature / humidity sensor 16, and the control device 14.

  The air supply unit 8 of the present invention includes a unit heater 23 for heating the outside air introduced into the drying chamber 2. Further, the control device 14 controls the far infrared heater 10, the air supply unit 8, and the exhaust unit 9. Thereby, the temperature value and humidity value in the drying chamber 2 can be set to suitable values. In addition, the dried product to be dried by the far-infrared drying apparatus of the present invention is not particularly limited, but has a high moisture content such as a raw material of dried fruits (banana, mango, etc.) and dried vegetables (dried persimmon, etc.). Target dry matter.

  The basic configuration and dimensions of the far-infrared drying apparatus of this embodiment are the same as those of the conventional far-infrared drying apparatus (Patent Documents 1 and 2), and the same portions are denoted by the same reference numerals. The far-infrared drying apparatus is provided with a drying room 2 and a machine room 3 in a one-story building 1 having a width of 3,600 mm, a depth of 7,200 mm, and a height of about 3,000 mm. In this embodiment, the drying chamber 2 and the machine room 3 are provided adjacent to each other, and the control device 14 is installed in the machine room 3, but the present invention is not limited to this configuration. For example, the far infrared drying apparatus 1 may be configured such that the machine room 3 is not provided and the control device 14 is provided on the side surface or in the vicinity of the drying room 2.

  An entrance 4 having a frontage width of 1,800 mm and a height of about 2/3 of the building 1 is provided in the center of the front of the building 1, and a room having a depth of 5,400 mm entering from the entrance 4 is the drying chamber 2. The inlet 4 is opened and closed by a shutter 5. In this embodiment, one inlet 4 is provided, but two inlets may be provided on the left and right so that the carts 11 arranged in two rows can be easily carried in or out.

  As shown in FIGS. 1 and 2, the two near the ceiling at the center of the drying chamber 2, specifically at a height of about 2/3 of the drying chamber 2, from the entrance 4 side toward the back, A beam is erected, and three circulation fans 12 are provided side by side on the beam. The circulation fan 12 blows air from the ceiling side of the drying chamber 2 toward the floor to circulate the air in the drying chamber 2. Further, exhaust units 9 are provided at the upper portions on both sides of the wall on the inlet side of the drying chamber 2. The exhaust unit 9 forcibly exhausts the air in the drying chamber 2.

  FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1, which is a cross-sectional view of the drying chamber 2 and the inlet 4 of the drying chamber 2 viewed from the cross section. As shown in FIG. 1 and FIG. 3, the carts 11 on which the dried material is placed are carried in from the entrance 4 in two rows, three each, for a total of six. The number of carriages 11 is not limited to six, and may be changed depending on the dimensions of the carriages 11. FIG. 5 (A) is a perspective view showing an example of the carriage 11 on which the dried product is placed, and FIG. 5 (B) is a partial front view. The dimensions of the carriage 11 are about 610 mm in width, 1,226 mm in depth, and about 1,905 mm in height, and are designed so as not to contact the circulation fan 12. For example, four casters are provided on the bottom surface of the carriage 11.

  Further, the carriage 11 is configured such that a plurality of kites (or salos) can be stacked at intervals in the vertical direction. There is no particular limitation on the number of kites that can be loaded on the cart, but the cart 11 shown in FIG. 5 has a configuration in which sixteen kites are stacked. For example, when the dried product is steamed and sliced salmon, which is a raw material for dried salmon, they are placed on the salmon and placed on the cart 11. Since six carts are used in the present embodiment, dried products can be arranged and dried on 96 kites. In addition, although mentioned later for details, you may attach the mass sensor (not shown) which measures the mass of a dried material to the trolley | bogie 11 or the basket of a present Example.

  The carts 11 may be carried in one by one, but two or three carts may be connected and carried in. For example, it is possible to connect three cars arranged in two rows to form a trolley train, and to install two rails on the floor by installing tires instead of casters on the bottom ( Not shown). By setting it as such a structure, the effort which carries in each each trolley can be saved, and three trolley | bogies can be carried in collectively.

  As shown in FIGS. 1 and 3, a plurality of far infrared heaters 10 are installed on the side surface of the wall in the drying chamber 2. Although only a part of the far infrared heater 10 is shown in FIGS. 1 and 3, for example, 25 far infrared heaters are installed on the side surface of the wall. The dry matter in the drying chamber 2 is warmed and dried by the radiation heat of the far infrared heater 10. As described above, since the far-infrared heater 10 can give heat necessary for raising the temperature inside the dried product from the surface, the dried product can be heated quickly and uniformly by heat conduction.

  As shown in FIGS. 1 and 2, the drying chamber 2 is provided with a temperature / humidity sensor 16 for measuring temperature and humidity. The temperature / humidity sensor 16 is connected to the control device 14 in a wired or wireless manner, and transmits measurement results at intervals of, for example, 10 minutes. Since the temperature / humidity sensor 16 is installed to adjust the temperature and humidity of the dried product, it is necessary to install the temperature / humidity sensor as close to the dried product as possible, but it is preferable to install the temperature / humidity sensor 16 so as not to be too close to the far infrared heater 10. . Therefore, in this embodiment, as shown in FIGS. 1 and 2, the temperature / humidity sensor 16 is installed in the vicinity of the carriage 11 and at a certain distance from the far-infrared heater 10. Any temperature / humidity sensor 16 may be used, but it is preferable that the temperature / humidity sensor 16 has a measurement temperature range of about −10 to 60 ° C. and a measurement humidity range of about 10 to 95%.

The innermost part of the drying chamber 2 is a partition wall 13, which is partitioned by the partition wall 13, and a machine chamber 3 having a depth of about 900 to 1800 mm is provided further behind the partition wall 13. The partition wall 13 completely partitions the drying chamber 2 and the machine chamber 3, and an air supply unit 8 for sending air from the machine chamber 3 side to the drying chamber 2 side is attached thereto. 4 is a cross-sectional view taken along line B-B in FIG. 1, and shows the partition wall 13 viewed from the machine room 3 side. In the example shown in FIG. 4, the air supply unit 8 is attached to the partition wall 13 at two places, but it may be attached at one place or three or more places. By the operation of the air supply unit 8, it is possible to set the air pressure in the drying chamber 2 to be slightly higher than the machine chamber 3 so that air and water vapor do not flow into the machine chamber 3 from the drying chamber 2. When the machine room 3 is not provided, the air supply unit 8 is provided on the outer wall of the drying room 2 and directly takes in the outside air.

  FIG. 6 is a front view (A) and a side view (B) showing an example of an air supply unit 8 provided with a unit heater. The air supply unit 8 includes a blower unit 21 and a heating unit (unit heater) 22. Any heat source such as electricity, steam, or hot water may be used as the heat source of the hot air heating unit 22, but electricity is used in this embodiment. Use of electricity makes it easy to adjust the temperature of the hot air. A heating prevention sensor is incorporated in the heating unit 22 so that the hot air temperature at the discharge port is 100 ° C. or lower. A terminal box 23 configured so as not to conduct heat is installed above the heating unit 22, and terminals (heater terminals, blower terminals), heating prevention sensors, and the like that are connected to the control device 4 of the drying chamber 2 are accommodated. ing. Note that a wind direction guide (not shown) may be installed in the heating unit 22 so that the direction of the discharged hot air can be adjusted.

  An intake unit 15 for taking in outside air is provided on the outer wall of the machine room 3 that is partitioned from outside air. The air taken into the machine room 3 from the intake unit 15 can be controlled and sent to the drying room 2 in consideration of the weather and temperature. An entrance 6 is provided on the side wall of the machine room 3, and a person can enter and leave the machine room 3 by opening and closing a door 7 attached thereto. In the machine room 3, a control device (control panel) 14 such as a switchboard for operating and operating the far infrared heater 10, the air supply unit 8, and the exhaust unit 9 in the drying room 2 is installed. A person enters 3 and operates the control device 14.

  FIG. 7 is a cross-sectional plan view showing another embodiment of the far-infrared drying apparatus. The basic configuration is the same as that of the far-infrared drying apparatus 1 shown in FIG. 1 except that the drying chamber 2 is adjacent to both sides of the machine room 3 in which the control device 14 is installed. Other configurations (such as the far infrared heater 10, the air supply unit 8, the exhaust unit 9 in the drying chamber 2) are the same as those of the far infrared drying apparatus 1 shown in FIG. The far-infrared drying apparatus 1 shown in FIG. 7 includes two drying rooms 2 (3,600 mm depth) in a one-story building 1 having a width of 1,800 mm, a depth of 9,000 mm, and a height of about 2,260 mm. Chamber 3 (depth 1,800 mm) is provided.

  For example, two trolleys 11 that are carried into the drying chambers are carried into each drying chamber 2 using one that matches the dimensions of the drying chamber 2. An air supply unit 8 is provided on each wall between the machine room 3 and the drying room 2, and an intake unit 15 for taking in the outside air is provided on the outer wall of the machine room 3 that is partitioned from the outside air. It has been. In the machine room 3, a control device 14 for operating and operating the far infrared heater 10, the air supply unit 8, and the exhaust unit 9 in each drying room 2 is installed. One or both can be operated simultaneously. Since the temperature and humidity of the outside air in each drying chamber 2 are the same, there is an advantage that the dry matter in the two drying chambers 2 can be simultaneously dried by the same operation.

[How to use the far-infrared drying apparatus 1]
Next, a procedure for drying a dried product using the far-infrared drying apparatus 1 of the present embodiment will be described. First, the shutter 11 of the machine room 3 is opened, and the carriage 11 loaded with the dried material is carried into the drying room 2 from the inlet 4. When the atmosphere in the drying chamber 2 is in a heated state, the shutter 5 at the inlet 4 is kept from opening and closing as much as possible so as not to release heat. After the dried product is carried into the drying chamber 2, the inlet 4 is closed with the shutter 5, and the drying operation is started. The control device 14 is provided in the machine room 3. The entrance 6 is opened and closed in the machine room 3 with a door 7, and a person enters and exits the room as needed to check the operation and the drying operation state.

  Based on the temperature and humidity measured by the temperature / humidity sensor 16 in the drying chamber 2, the hot air temperature and the air flow rate of the air supply unit 8 are adjusted so as to obtain a predetermined temperature and humidity. At this time, it is preferable to adjust the amount of outside air sent from the intake unit 15 of the machine room 3. Further, since the air in the drying chamber 2 is exhausted by the exhaust unit 9, not only the air supply unit 8 and the intake unit 15 but also the exhaust unit 9 is controlled in conjunction. By controlling in this way, the air amount (ventilation amount) in the drying chamber 2 can be adjusted.

  In addition, the temperature in the drying chamber 2 is heated not only by the air supply unit 8 but also by the far infrared heater 10 described above. As a result, moisture contained in the dry matter placed on the carriage 11 is evaporated, and this vapor is continuously exhausted by the circulation fan 12 and the exhaust unit 9, so that the inside of the drying chamber 2 can be ventilated. By the on / off control of the far infrared heater 10 and the air supply unit 8, the temperature in the drying chamber 2 can be maintained at 55 ° C., for example. Moreover, the humidity in the drying chamber 2 can be maintained at, for example, 10% by controlling the air supply unit 8 and the intake unit 15 and the exhaust unit 9 in conjunction with each other as necessary.

  As described above, the inside of the drying chamber 2 can be maintained at an appropriate temperature value by the far-infrared heater 10 and the air supply unit 8, and the inside of the drying chamber 2 is ventilated by the operation of the air supply unit 8, the exhaust unit 9, and the intake unit 15. Thus, the inside of the drying chamber 2 can be maintained at an appropriate humidity value. Therefore, even when the outside air temperature is low or the outside air humidity is high, the temperature and humidity in the drying chamber can be maintained at predetermined values, and the drying time of the dried product can be shortened.

  FIG. 8 shows the drying time and dry matter when drying the raw material of dried persimmons (sliced steamed Tamayutaka sweet potato with a moisture content of 61.9%) using the far-infrared drying apparatus 1 of the present invention. It is the graph which showed the relationship with a weight. The temperature in the drying chamber 2 is maintained at about 45 ° C. by ON / OFF control of the air supply unit 8 including the unit heater and the far infrared heater 10, and the air supply unit 8, the intake unit 15, and the exhaust unit 9 are interlocked. In this way, the humidity in the drying chamber 2 was maintained at about 12% for drying.

  FIG. 9 is a graph showing the relationship between the drying time and the weight of the dried product when drying the raw material of dried straw using a conventional far-infrared drying apparatus. In the conventional far-infrared drying apparatus, the air supply unit 8 is not provided with a unit heater, and the outside air is supplied as it is into the drying chamber 2 to be dried.

  From the graph of FIG. 8, in the embodiment of the present invention in which the outside air is heated through the air supply unit 8 and supplied to the drying chamber 2, the weight of the dried product becomes 317 g after 8 hours of drying, which is about 628 g of the drying start weight. It became half. That means that moisture was evaporated from the dried product. On the other hand, in the comparative example using the air supply unit 8 not provided with the unit heater shown in FIG. 9, the weight did not become half of that at the start of drying even in the drying time of 24 hours. Thus, by using the far-infrared drying apparatus 1 of the present invention, the moisture of the dried product can be evaporated in a short time, and the drying time can be greatly reduced.

[Control of moisture content of dried product]
Furthermore, in this embodiment, control is performed so that the moisture content of the dried product is set to a predetermined value. As mentioned above, dried foods, especially dried fruits and vegetables, tend to be preferred when they contain a certain amount of water, rather than being completely dried. is there. For example, it is desirable to dry the raw material of dried persimmon (sliced steamed Tamayutaka sweet potato with a moisture content of 61.9%) so that the moisture content is 26.9%, and keep the moisture content The sweetness and texture are moderately maintained, resulting in a high quality dried persimmon.

  In the example shown in the graph of FIG. 8, steamed sweet potato (weight 628 g) having a moisture content of 61.9% is used as a raw material. However, it is necessary to dry the sweet potato so that the moisture content is 26.9%. consider. The moisture content of the sweet potato having a weight of 628 g is 388.7 g (= 628 × 61.9 / 100), and the weight excluding the moisture content from the sweet potato is 239.3 g (= 628−388.7). Assuming that the moisture content at which the moisture content of the sweet potato is 26.9% is x (g), the following equation is established.

  Solving the equation, the water content x is 88.1 g, and the weight of the dried sweet potato (dried rice cake) containing this water content is 327.4 g. Therefore, it is dried until the sweet potato reaches this weight. From FIG. 8, it takes 7 to 8 hours for the dried straw to reach 327.4 g. Such weight calculation is preferably performed automatically by the controller 14.

  The weight of the sweet potato may be measured by using a mass sensor (not shown) provided on the cart 11 or the cocoon cake on which the dried product is loaded, or may be taken out and measured periodically. When a mass sensor is used, the far-infrared heater 10, the air supply unit 8, the intake unit 15, and the exhaust unit 9 are controlled in conjunction until a predetermined mass is reached. Or can be controlled to automatically stop operation. When the sweet potato is periodically taken out and the weight is measured, the operation is stopped by manually operating the control device 14 after reaching a predetermined mass. In addition, although the measurement of the weight of a sweet potato may be performed one by one, it may be performed in a cocoon child unit or may be performed in a cart unit.

  In the present embodiment, the dried potato material is described as an example of the dried product, but any dried product may be used, for example, a mango or banana material may be dried. By maintaining a predetermined moisture content for mango and banana, the sweetness and texture can be maintained moderately, and high-quality dried fruit can be produced.

  As described above, the far-infrared drying apparatus of the present invention controls the air supply unit, the far-infrared heater, the exhaust unit, and the intake unit with a unit heater in conjunction with each other regardless of the temperature and humidity of the outside air. Thus, the temperature value and humidity value in the drying chamber can be set to suitable values. Thereby, since drying can be performed efficiently and stably in a short time, the productivity of the product can be greatly improved.

  In addition, since the operation is stopped after measuring the mass of the dried product and evaporating the water to a mass that achieves a predetermined moisture content, it is possible to produce a high-quality dried product having a predetermined moisture content in a short time. it can.

  In addition, the far-infrared drying apparatus of the Example mentioned above is an example, The structure can be suitably changed in the range which does not deviate from the meaning of an invention.

DESCRIPTION OF SYMBOLS 1 Far-infrared dryer 2 Drying room 3 Machine room 4 Drying room entrance 5 Shutter 6 Machine room entrance 7 Door 8 Air supply unit 9 Exhaust unit 10 Far-infrared heater 11 Carriage 12 Circulation unit 13 Partition wall 14 Control device 15 Intake unit 16 Temperature / Humidity Sensor 21 Blower 22 Heater 23 Terminal Unit

Claims (4)

A drying chamber (2) for storing dried products to be dried, a far infrared heater (10) for heating the dried products, a circulation unit (12) for circulating air in the drying chamber (2), and the drying chamber (2) An air supply unit (8) for supplying outside air into the interior, an exhaust unit (9) for exhausting air in the drying chamber (2) together with water vapor outside the drying chamber (2), and a temperature / humidity sensor (16) and a control device (14),
The air supply unit (8) includes a unit heater (22) for heating the outside air introduced into the drying chamber (2),
The far-infrared drying apparatus, wherein the control device (14) controls the far-infrared heater (10), the air supply unit (8), and the exhaust unit (9).   The far-infrared drying apparatus according to claim 1, further comprising a machine room (3) adjacent to the drying room (2), wherein the control room (14) and outside air are supplied to the machine room (3). A supply intake unit (15) is installed, and the control device (14) controls the far infrared heater (10), the supply unit (8), the exhaust unit (9), and the intake unit (15). A far-infrared drying apparatus characterized by:   The far-infrared drying apparatus according to claim 1 or 2, characterized in that a mass sensor is provided in a cart (11) or a basket that carries dry matter to be carried into the drying chamber (2). Drying equipment.   The far-infrared drying apparatus according to any one of claims 1 to 3, further comprising two or more drying chambers (2), wherein one control device (14) is the far-infrared heater of each drying chamber (2). (10) A far-infrared drying apparatus for controlling the air supply unit (8) and the exhaust unit (9).