KR20040043543A - A Dryer for Manufacturing Red Ginseng - Google Patents

Abstract

PURPOSE: A red ginseng dryer for permitting the drying rate of red ginseng to be maintained at suitable levels by automatically controlling the temperature and humidity, circulating a wicker tray for containing red ginseng within a drying room and keeping watch on all the processes within a working room with an image-process apparatus is provided. It inhibits the generation of burst and overbrowning of the product. CONSTITUTION: A red ginseng dryer comprises: a blow pipe(45) connecting an air inlet hole(30) and an air outlet hole(40) at the exterior of a dying room(11); a water supply tank(17) placed on the way to the blow pipe through the intermediation of an electric boiler(16); a temperature sensor(18) and a humidity sensor(47) installed within the drying room; a computer(19) for receiving a signal from the temperature sensor and humidity sensor; and a controller(20) for opening and closing the discharge hole of the boiler and performing the on-off operation of a heater after receiving a control signal from the computer.

Description

Dryer for red ginseng manufacturing {A Dryer for Manufacturing Red Ginseng}

The present invention relates to a red ginseng manufacturing dryer, and more particularly, to a red ginseng manufacturing dryer which can automatically adjust temperature and humidity while rotating ginseng to be dried.

Red ginseng and white ginseng are usually produced by steaming ginseng, steaming, and drying. In other words, ginseng is collected from mainpo and washed, then shipped in the state of fresh ginseng, or only dried and distributed for long-term storage, but is usually steamed and processed into red ginseng or cuticle. After peeling off, it is processed and distributed in the state of dry white ginseng.

In general, ginseng is late and uneven because the meat part is thick and large. In addition, since the difference in quality is large depending on the dry state, the drying of ginseng requires skill and careful attention.

The dryer for manufacturing red ginseng to date has mainly used the method of drying by placing a tray on the ginseng truck fixed to the inside of a drying chamber, and blowing hot air in a drying chamber.

Such a conventional negative pressure red ginseng manufacturing dryer is disclosed in Korean Patent Application No. 1999-34034. Hereinafter, with reference to the accompanying drawings to briefly introduce the configuration.

8 and 9 show a conventional negative pressure red ginseng manufacturing dryer.

This apparatus is constituted in the form of a general drying chamber 101, and a suction fan 102 of a suitable capacity is provided, so that the pressure inside the drying chamber 101 can be adjusted (adjusted to negative pressure) lower than atmospheric pressure. .

Drying chamber 101 may be determined to a capacity suitable for drying ginseng, red pepper, herbal medicines and pharmaceutical preparations. And the wall which forms the outer side of the drying chamber 101 is comprised by the normal heat insulation wall body.

Moreover, the ventilation opening 103 for temperature control is provided in the side part of the drying chamber 101, and it is comprised so that it may open and close automatically according to the temperature state inside the said drying chamber 101. As shown in FIG.

On the other hand, the suction fan 102 is installed in the upper portion of the drying chamber 101 to suck out the air in the sealed drying chamber 101, to discharge moisture generated during the drying process and to lower the pressure of the drying chamber more appropriately than the outside. It is.

Such a negative pressure dryer is installed by adjusting the size and capacity of the draft fan 102, the ventilation port 103, etc. according to the use of agricultural products, such as ginseng, red pepper, wild vegetables, and the like to be dried, such as herbal medicines or pharmaceuticals such as pills. .

In addition, heat dissipation pipes 104 are provided at both side portions of the drying chamber 101. The heat dissipation tube 104 is made of a special tube having a large heat transfer area. Inside the drying chamber 101, an internal circulation fan 105 and a barrier wall 108 provided between the heat dissipation tube 104 and the ginseng truck 106 are installed so that air is discharged from the heat dissipation tube 104. It is comprised so that it may descend below via the heat dissipation tube 104 from the upper part, and apply heat to the collection board 107 from the bottom of the ginseng truck 106. In this way, heat can be prevented from being transferred directly to ginseng.

However, such a conventional red ginseng manufacturing dryer does not have a humidity control function and thus cannot control the drying speed. Accordingly, there was a problem that bursting or over browning reaction of the manufactured red ginseng occurs.

In addition, since hot air is distributed in the upper part of the drying chamber and low temperature air is distributed in the lower part of the drying chamber, not only is it not uniform throughout the drying chamber, but also there is a part where the air flow is stagnant, so that the drying state itself is uneven. Could not.

In addition, since the work process cannot be directly identified with the naked eye, a burst phenomenon that may occur during the work process, that is, an occurrence time and a cause, could not be clearly determined.

The present invention has been made to solve the above problems,

The first object of the present invention is to automatically adjust the temperature and humidity in the drying chamber to moderate the drying rate of red ginseng, thereby suppressing the bursting of manufactured red ginseng and generating a suitable browning reaction.

The second purpose is to equalize the temperature, humidity and wind speed according to the zone inside the drying chamber.

The third purpose is to clearly identify the time and cause of the bursting phenomenon occurring during the manufacturing process by monitoring the process in the working room using an image processing apparatus.

1 is a front view showing the overall configuration of a red ginseng manufacturing dryer according to the present invention.

Figure 2 is a side view showing the overall configuration of the red ginseng manufacturing dryer according to the present invention.

3 is a detailed view of the interior of the drying chamber in FIG. 1.

FIG. 4 is an operation configuration of the tray rotating apparatus inside the drying chamber in FIG. 1, wherein (a) is a front view and (b) is a plan view.

5 is a block diagram showing a procedure for adjusting the humidity in the drying chamber.

6 is a block diagram showing a procedure for adjusting the temperature in the drying chamber.

7 is a diagram illustrating an operating state displayed on a computer monitor.

8 is a front sectional view showing the overall configuration of a conventional red ginseng manufacturing dryer.

9 is a perspective view schematically showing the overall configuration of a conventional red ginseng manufacturing dryer.

※ Explanation of Major Drawings

11 ... Drying Room

16. Electric boiler

17 ... water supply tank

18.Temperature sensor

19 ... Control Computer

20 ... controller

21 ... drive motor

22 ... chain

23 ... Sprocket

24 ... sprocket transmission

25 ... heater

27.

30.Air inlet

31 ... Guide

32. Perforated Plate

33 ... blower fan

40. Air outlet

46. Dehumidifying fan

47 ... Humidity Sensor

101 ... Drying Room

102 ... Suction Fan

103 ... Vent

104 ... heat sink

105 ... Circulation Fan

106 ... Balance

107.

108 ... Barrier

In order to achieve the first object described above, the red ginseng manufacturing dryer according to the present invention,

And a drying chamber, a tray for loading ginseng in the drying chamber, an air inlet and an air outlet for entering and exiting air into the drying chamber, a heater for heating the supplied air, and a blower fan for circulating air. In the dryer for manufacturing red ginseng,

A blowing pipe connecting the air inlet and the air outlet from the outside of the drying chamber;

A water supply tank connected to the middle of the blower pipe through an electric boiler;

A temperature sensor and a humidity sensor installed in the drying chamber;

A computer for receiving signals from said temperature sensor and humidity sensor;

A controller for receiving a control signal from the computer to open or close the outlet of the boiler or to turn on or off a heater;

It is configured to include.

In addition, in order to achieve the second object, the red ginseng manufacturing dryer according to the present invention is characterized in that the upper and lower circulation is freely installed with respect to the drying chamber.

To this end, it is preferable that the tray is circulated by a drive motor installed in the drying chamber, two sprockets which are rotated by the drive motor and are spaced apart from each other, and a transmission means for driving both sprockets.

Here, the two sprockets may be provided so as to freely rotate the upper and lower support rods provided in the drying chamber.

In addition, if the vertical support rod is configured to slide freely in the front and rear direction of the drying chamber, the front and rear movement of the tray is free and the red ginseng loading operation becomes easy. To this end, it is preferable that a pair of rails and wheels are formed on an inner surface of the drying chamber and an end of the upper and lower support rods.

Moreover, if a dehumidifying fan is additionally installed in the middle of the blower tube, the above object can be more effectively achieved.

Further, in order to achieve the third object, the red ginseng manufacturing dryer according to the present invention is characterized in that a camera is installed outside the drying chamber.

In addition, the temperature sensor and the humidity sensor is preferably provided at both the air inlet and the air outlet.

It is preferable that the said tray is comprised so that sliding movement to the front-back direction of a drying chamber is free.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show the overall configuration of the red ginseng manufacturing dryer according to the present invention, Figures 3 and 4 shows the internal configuration of the drying chamber in the red ginseng manufacturing dryer according to the present invention.

As shown, the red ginseng manufacturing dryer according to the present invention includes a drying chamber 11, a tray (27) for loading ginseng in the drying chamber (11), an air inlet (30) installed in the drying chamber (11), and It comprises an air outlet 40, a heater 25 for heating the supplied air, and a blowing fan 33 for circulating the air, which is a common part of a conventional dryer.

On the other hand, as shown in Figure 3, in the dryer according to the present invention, the tray 27 installed in the drying chamber 11 is to circulate in the vertical direction. To this end, the two sprockets 23 are freely installed in the drying chamber 11 in the vertical direction. The chains 22 are connected to the two sprockets 23 so that power can be continuously transmitted to each other. Here, a plurality of trays 27 are provided around the chain 22 at intervals, and as the chain 22 circulates, the tray 27 on which ginseng is loaded is also circulated together. To this end, the one sprocket 23 is connected to the drive motor 21 via a suitable transmission means 22 such as a belt or a chain. At this time, as shown in Fig. 4 (b), the rotating shaft 44 for connecting the sprocket 23, the transmission means 22 and the channel 27 together to the drive motor 21 to a concentric double axis It is preferable to form a pair of rails and wheels 60 and the like on the upper and / or lower ends of the upper and lower support rods 55 and the inner surface of the drying type 11 while allowing the expansion and contraction. In such a configuration, when the stacking is completed, the tray 27 is removed from the drying chamber 11, and when the stacking is completed, it can be pushed back into the drying chamber 11 to facilitate use. At this time, it is preferable that a stopper (not shown) for stopping the movement of the guide 60 at a predetermined distance is provided on the inner surface of the drying chamber 11.

It is preferable that the driving motor 21 is capable of shifting, and the tray 27 is rotated in the range of 0 to 10 rpm.

The dry tray 27 is to be loaded by five paper six years old ginseng per one tray, the size is about 300mm × 500mm. In addition, the material of the chaeban 27 is preferably composed of bamboo somewhat similar in properties to fresh ginseng.

In addition, the size of the drying chamber 11 is 700mm x 700mm x 1500mm in consideration of the size of six years old first grade ginseng. The entire outer shell is insulated to a thickness of 50 mm.

The drying chamber 11 is provided with an air inlet 30 and an air outlet 40, both of which are connected by a blower pipe 45 outside the drying chamber 11. Accordingly, the air passing through the drying chamber 11 exits through the air outlet 40, but is not discharged out of the air as it is, but enters the air inlet 30 again. Configure a closed system (see FIG. 4 (b)).

Air is supplied to the drying chamber 11 by the blowing fan 33 installed at the inlet of the air inlet 30. In this embodiment, an axial fan having a diameter of 500 mm, an air volume of 120 m ³ / min, and a constant pressure of 25 mmAq was used as the blowing fan, and the wind speed in the drying chamber 11 was maintained at 2 m / s.

In addition, for uniform air inflow, it is preferable to provide the guide 31 and the porous plate 32 from the air inlet 30 to the drying chamber 11. The porous plate 32 also has a function of reducing the speed of the inlet air.

In addition, as illustrated in FIG. 4B, an electrothermal heater 25 is provided in the middle of the blower pipe 45 to heat the air supplied to the air inlet 30. In this embodiment, although the capacity of 10 kWh was used as the electric heater 25, it is good to install 4 kWh, 6 kWh together for precise temperature control.

In addition, a dehumidifying fan 46 is additionally provided in the middle of the blower pipe 45, and is driven and dehumidified when the humidity of the drying chamber 11 is excessively high.

On the other hand, in order to control the humidity in the drying chamber 11, a water supply means is connected to the blower pipe 45 between the air outlet 40 and the air inlet (30). The water supply means is composed of a water supply tank 17 and an electric boiler 16. When the humidity of the drying chamber 11 is low, the water in the water supply tank 17 is heated by the electric boiler 16. The steam generated at this time is supplied to the blower pipe 45. At this time, the electric boiler 16 is provided with a normal solenoid valve (not shown), and the steam outlet (not shown) provided in the boiler 16 is automatically provided by the computer 19 and the control device 20 which will be described later. It can be opened and closed. The water supply to the electric boiler 16 and the pressure control in the boiler is equipped with a conventional water meter (not shown) and a pressure valve (not shown) is installed.

In order to control the temperature and humidity of the drying chamber 11, it is necessary to install a temperature sensor 18 and the humidity sensor 47. In the present embodiment, both the air inlet 30 and the air outlet 40 are provided, but may be provided at a suitable point inside the drying chamber 11. Two thermocouples were used as the temperature sensor 18, and humidity may be measured by a separate sensor. However, in the present embodiment, the thermocouple is used as a dry bulb thermometer and a wet bulb thermometer is installed next to the dry bulb. And by measuring the wet bulb temperature, relative humidity was measured in relation to the dry and wet bulb temperature.

5 and 6 show the process of measuring the humidity and temperature to maintain a predetermined value.

The humidity control process, as shown in Figure 5, first, when the humidity is measured from the humidity sensor 47, this value is converted into an electrical signal through the signal converter, and then to the digital signal through the D / A board The conversion is input to the computer 19, and the value calculated by the computer 19 enters the controller 20 through the A / D board. The controller 20 receives the signal and supplies moisture by driving the solenoid valve of the electric boiler 16 when the humidity is lower than the predetermined value, while the dehumidifying fan 46 in the middle of the blower pipe 45 when the humidity is high. By driving the humidity is reduced.

On the other hand, the temperature control process, as shown in Figure 6, first measures the temperature by a thermocouple, and then converts this value into an electrical signal through a signal converter, and then converted to a digital signal through the D / A board Input to the computer 19, the computer 19 is compared with a predetermined value and sends a signal to the controller 20 through the A / D board according to the comparison result. As a result, the comparison result is converted into an electrical signal through the signal conditioner, and the signal is amplified to turn on the heater 25 until it reaches a predetermined temperature. As a result, the temperature in the drying chamber 11 is maintained at a predetermined value.

Furthermore, the lower part of the drying chamber 11 is provided with a heat insulating glass and a CCD camera (not shown) photographed through the heat insulating glass, so that the image information can be stored in a computer at regular intervals through an image processing board and a computer program. .

All of these processes can be done automatically by a computer program. In Fig. 7, an example of the menu configuration of a computer screen is shown. In this embodiment, simply executing <primary drying> of the <process> menu on the computer, the conditions inside the dryer are automatically adjusted according to the specified temperature and humidity. In addition, since the image information inside the drying chamber from the CCD camera is stored at regular intervals, the cause and time of manufacturing the defective red ginseng can be accurately identified during the working process, thereby improving the next manufacturing process.

In the following [Table 1], when predetermined target temperature and humidity are input, the result of having measured the temperature and humidity inside a dryer for 22 hours which are 1st drying time is shown. Measurements were performed every 30 seconds and data was automatically stored. As can be seen from the results, the temperature and humidity are very uniform over time.

In addition, the temperature was measured by determining the six points of the drying chamber 11 of Figure 3, the results are shown in Table 2 below. The target temperature was carried out at 50 ° C., 60 ° C. and 70 ° C., and it can be seen that the temperature distribution is very uniform regardless of the vertical position.

In addition, by measuring the six points of the drying chamber 11 of Figure 3 to measure the wind speed, the results are shown in Table 3 below. The target wind speed was carried out for 2m / s, and it can be seen that the distribution of the wind speed is very uniform regardless of the position.

On the other hand, in order to measure the yield by the red ginseng manufacturing dryer according to the present invention, the experiment was carried out while drying red ginseng directly. For the test materials, 30 grades of grade 1 and 2 grades purchased from Anseong, Gyeonggi-do, and 30 grades of grade 1 and grade 2 purchased from Pocheon, Gyeonggi-do were included. The red ginseng was increased by autoclave for 5 hours, and then hot air dried under conditions of 75 ° C., 65% relative humidity, and 2 m / s wind speed, and the second drying was good for 2 weeks. The results are shown in Table 4 below. According to this, the average yield of Cheonjisam was about 18.8%.

According to the present invention having the above-described configuration, by automatically adjusting the temperature and humidity in the drying chamber, by appropriately drying the red ginseng, it is possible to suppress the bursting of red ginseng and the generation of over browning reaction.

In addition, by circulating the rice in which ginseng is loaded in the drying chamber, the temperature and humidity can be made uniform according to the zone inside the drying chamber.

In addition, by monitoring the process in the work room using an image processing apparatus, it is possible to determine the cause of the burst phenomenon occurring during the manufacturing process, to accurately change the drying conditions.

Claims (9)

And a drying chamber, a tray for loading ginseng in the drying chamber, an air inlet and an air outlet for entering and exiting air into the drying chamber, a heater for heating the supplied air, and a blower fan for circulating air. In the dryer for manufacturing red ginseng, A blower pipe 45 connecting the air inlet 30 and the air outlet 40 from the outside of the drying chamber 11; A water supply tank 17 connected to the middle of the blower pipe 45 through an electric boiler 16; A temperature sensor 18 and a humidity sensor 47 installed in the drying chamber 11; A computer (19) for receiving signals from the temperature sensor (18) and the humidity sensor (47); A controller 20 for receiving a control signal from the computer 19 to open or close the outlet of the boiler 15 or to turn the heater 25 on and off; Dryer for manufacturing red ginseng, comprising a. The method of claim 1, The tray (27) is a red ginseng manufacturing dryer, characterized in that the up and down circulation is freely installed with respect to the drying chamber (11). The method of claim 2, The tray 27 includes a drive motor 21 installed in the drying chamber 11, two sprockets 23 rotated by the drive motor 21 and spaced apart from each other, and both sprockets 23. Dryer for red ginseng manufacturing, characterized in that it is circulated by the transmission means 22 for transmitting the. The method of claim 3, The two sprockets (23) are red ginseng manufacturing dryer, characterized in that the rotation is freely installed in the upper and lower support rods 55 provided in the drying chamber (11). The method of claim 4, wherein The up and down support rod 55 is a red ginseng manufacturing dryer, characterized in that the sliding movement in the front and rear direction of the drying chamber (11) free. The method of claim 5, Dryer for manufacturing red ginseng, characterized in that the pair of rails and the wheel 60 is formed on the inner surface of the drying chamber 11 and the end of the upper and lower support rods 55. The method according to any one of claims 1 to 6, Dryer for manufacturing red ginseng, characterized in that the dehumidification fan 46 is installed in the middle of the blower pipe (45). The method according to any one of claims 1 to 6, A part of the drying chamber 11 is made of a transparent material, the dryer for manufacturing red ginseng, characterized in that the camera is installed on the outside. The method according to any one of claims 1 to 6, The temperature sensor 18 and the humidity sensor 47, the red ginseng manufacturing dryer, characterized in that installed in both the air inlet 30 and the air outlet (40).