Traditional Chinese medicinal material drying machine with uniform heating function

Abstract

The utility model belongs to the technical field of traditional Chinese medicinal material processing, and discloses a uniformly heated traditional Chinese medicinal material dryer which comprises a shell, a heating device, a conveying device and a heat circulating device, the heating device and the conveying device are fixed in the shell, and the heat circulating device is arranged on the surface of the shell. The conveying device can separate, turn over and transport the traditional Chinese medicinal materials needing to be dried. The heating device can heat air. The heat circulating device is provided with a suction opening and an air outlet. The heating device is arranged below the conveying device, the air outlet is formed below the heating device, and the suction opening is formed above the conveying device. The heating device can heat air, the heat circulating device can recycle heat in the drying machine, and the conveying device can convey traditional Chinese medicinal materials needing to be dried and enable the traditional Chinese medicinal materials to be separated from one another. And the drying time and the received heat of the traditional Chinese medicinal materials are consistent.

Description

Technical Field

[0001] The utility model relates to a Chinese herbal medicine dryer with uniform heat, belonging to the technical field of Chinese medicine drying. Background Art

[0002] After being obtained, Chinese herbal medicines need to be subjected to preliminary processing, including cleaning, sterilization, slicing, cutting, steaming, soaking, etc. After the preliminary processing is completed, the processed Chinese herbal medicines need to be dried for convenient storage.

[0003] The factors affecting the drying of Chinese herbal medicines include the appearance, size, thickness, texture of the Chinese herbal medicines themselves, and the temperature of the dryer, the speed of the circulating fan, the stacking method of the Chinese herbal medicines in the dryer, etc. At the same time, the drying temperature and the speed of the circulating fan can be adjusted during drying.

[0004] At present, when drying Chinese herbal medicines with a Chinese herbal medicine dryer, the position of the Chinese medicine in the dryer cannot be automatically adjusted. Sometimes the materials are prone to pile up, affecting the drying effect, resulting in incomplete removal of the surface moisture between the Chinese herbal medicines during drying. Manually adjust the position of the Chinese herbal medicines to ensure uniform heat during drying. It consumes manpower and material resources, and the temperature, humidity, and circulating wind speed of the Chinese herbal medicine dryer also affect the drying speed at the same time. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is as follows: to provide a Chinese herbal medicine dryer with uniform heat, which solves the problems that the Chinese herbal medicines are unevenly heated during drying and the dried Chinese medicines are prone to stack together.

[0006] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions: a Chinese herbal medicine dryer with uniform heat, including

[0007] a housing, a heating device, a conveying device, and a heat circulation device, characterized in that:

[0008] The heating device and the conveying device are fixed in the housing, and the heat circulation device is arranged on the surface of the housing.

[0009] The heat circulation device is provided with an air extraction port and an air outlet. The heating device is arranged below the conveying device, the air outlet is arranged below the heating device, and the air extraction port is arranged above the conveying device. The heating device can heat air, the heat circulation device can recycle the heat inside the dryer, and the conveying device can transport the Chinese herbal medicines to be dried and separate the Chinese herbal medicines from each other.

[0010] Preferably, the conveying device is at least two conveyor belts, and a plurality of servo motors control a single conveyor belt. The conveyor belts are arranged vertically, and a plurality of ventilation holes are provided on the surface of the conveyor belts.

[0011] Preferably, one edge of one end of the conveyor belt is arranged near the edge of the center of another conveyor belt.

[0012] Preferably, the conveying device is three conveyor belts.

[0013] Preferably, at least two conveyor belts are arranged in parallel with each other.

[0014] Preferably, a feed inlet is provided above the housing, a discharge outlet is provided on the side of the housing, a sealing cover is provided on the surface of the feed inlet, a valve is provided at the feed inlet, and the valve can adjust the opening or closing of the feed inlet.

[0015] Preferably, the heat circulation device includes a ventilation duct and an exhaust fan. The exhaust fan is arranged inside the ventilation duct. One end of the ventilation duct is connected to the upper end of the housing, and the connection part is the air extraction port. The other end of the ventilation duct is connected to the bottom of the side of the housing, and the connection part is the air outlet.

[0016] Preferably, the heating device is a heating rod.

[0017] Preferably, the side of the housing is detachable.

[0018] The beneficial effects of the present utility model are as follows:

[0019] (1) Through the present utility model, by using a plurality of conveyor belts, when traditional Chinese medicinal materials fall from one conveyor belt to the next conveyor belt, they will roll and rotate. The surface of the traditional Chinese medicinal materials that has been adhering to the conveyor belt will be turned to the top, and the surface of the traditional Chinese medicinal materials that has been adhering to the conveyor belt can be in full contact with hot air, improving the water evaporation effect; when the traditional Chinese medicinal materials adhering together fall from one conveyor belt to the next conveyor belt, they will be separated due to the impact of gravity. After separation, the surface of the traditional Chinese medicinal materials will be directly exposed to hot air and can be in full contact with hot air, improving the water evaporation effect.

[0020] (2) Through the present utility model, by means of the valve at the feed inlet, the feeding speed and quantity of traditional Chinese medicinal materials can be controlled, preventing too many traditional Chinese medicinal materials from stacking together when entering the dryer with uniform heating, resulting in poor drying effect.

[0021] (3) With the present utility model, after the hot air heated by the heating device evaporates the Chinese medicinal materials, hot air containing a large amount of water vapor is generated. The hot air containing a large amount of water vapor is sucked into the ventilation duct by the exhaust fan to remove the water vapor and then re-enters the interior of the dryer, improving the efficiency of gas circulation. At the same time, the gas flow rate during the drying process is also increased, ensuring the drying effect.

[0022] (4) With the present utility model, the speed of the servo motor controlling the operation of the conveyor belt can be adjusted, which can change the interval of the Chinese medicinal materials to be dried. When drying Chinese medicinal materials of different sizes, a sufficient distance is ensured between the materials, and Chinese medicinal materials of different materials or sizes all have a good drying effect. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present utility model.

[0024] Figure 2 It is a schematic side view structure diagram of the present utility model.

[0025] Figure 3 It is a schematic side plate installation structure diagram of the present utility model.

[0026] Figure 4 It is a schematic bottom view of the side of the present utility model.

[0027] In the figure: housing - 1, feed inlet - 101, discharge outlet - 102, side plate - 103, heating device - 2, heating rod - 201, conveying device - 3, conveyor belt - 301, servo motor - 302, heat circulation device - 4, ventilation duct - 401, air suction port - 402, air outlet - 403. Detailed Description of the Embodiments

[0028] In order to understand the technical means, creative features, achieved purposes and effects of the present utility model easily, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Embodiment 1, as Figures 1-4 shown, a Chinese medicinal material dryer with uniform heat distribution includes a housing 1, a heating device 2, a conveying device 3, and a heat circulation device 4. Among them, the housing 1 is a cuboid with a groove provided inside; one long side side plate of the housing 1 can be disassembled. The heating device 2 and the conveying device 3 are arranged in the groove of the housing 1, and two groups of heat circulation devices 4 are arranged on the top of the housing 1, and the other end of the heat circulation device is connected to the bottom of the non-detachable side of the housing 1.

[0030] The Chinese medicinal material dryer with uniform heat distribution is also provided with a controller, which controls all the electronic components inside the Chinese medicinal material dryer. The controller can set different programs to control the working state and working speed of each electronic component.

[0031] A feed inlet 101 is provided near one short side at the top of the outer shell 1, and a discharge outlet 102 is provided at the lower end of the side of the outer shell 1 away from the feed inlet 101. An automatic valve is provided at the feed inlet 101. After the traditional Chinese medicine to be dried is poured into the feed inlet 101, the automatic valve can control the time for the traditional Chinese medicine to enter the dryer. This avoids too much traditional Chinese medicine entering the dryer at the same time, which may affect the drying effect. When the traditional Chinese medicine being dried in the dryer reaches the upper limit, the valve is closed to prevent too much traditional Chinese medicine from entering the dryer. The excess traditional Chinese medicine can be stacked at the feed inlet, avoiding the need for manual continuous feeding. This reduces the repeated feeding operations of the operator. A sealing plate is provided at the discharge outlet 102. The sealing plate can ensure the tightness of the dryer during drying, and after drying is completed, the sealing plate can be retracted to open the discharge outlet 102. A guiding plate is provided inside the outer shell 1 and is connected to the discharge outlet 102. The dried traditional Chinese medicine falls into the collection basket along the guiding plate.

[0032] The conveying device 3 includes three conveyor belts 301 and a servo motor 302. The conveyor belts 301 are made of metal conveyor belts, and a plurality of holes are provided on the surface of the conveyor belts. Air can penetrate the conveyor belts through the holes. This ensures that the hot air in the dryer will not be blocked by the conveyor belts and affect its flow.

[0033] Each conveyor belt 301 is installed inside the outer shell 1. One side of each conveyor belt 301 is close to the edge of the outer shell 1. The conveyor belts 301 are arranged vertically. The end of the upper conveyor belt 301 that is not close to the outer shell 1 is located below the lower conveyor belt 301, ensuring that the traditional Chinese medicine on the conveyor belt 301 can fall onto the lower conveyor belt 301 or the guiding plate. The uppermost conveyor belt 301 is arranged below the feed inlet 101. The lowermost conveyor belt 301 is arranged near the guiding plate of the discharge outlet 102. This ensures that the lowermost conveyor belt 301 can transport the dried traditional Chinese medicine to the guiding plate, and the guiding plate guides the dried traditional Chinese medicine to the discharge outlet 102. The servo motor 302 is installed on the side plate of the outer shell 1 that can be disassembled. When the side plate is installed on the outer shell 1, the servo motor 302 can drive the conveyor belt 301 to move. The rotation speed of the servo motor 302 can be adjusted, and the speed of the conveyor belt 301 can be adjusted according to the shape, size, and moisture content of the traditional Chinese medicine to be dried. This controls the time of the traditional Chinese medicine in the dryer and the interval on the conveyor belts 301 at different positions.

[0034] When two or more conveyor belts 301 are provided, the servo motor 302 can control the rotation of each conveyor belt 301 separately. Or two servo motors 302 can be used to control the conveyor belts 301 at intervals respectively, ensuring that the transportation speeds between the conveyor belts 301 on one side are equal.

[0035] The heating device 2 includes a plurality of heating rods 201, which can heat air to provide heat for the Chinese herbal medicine dryer.

[0036] The heating device 2 is installed below the conveying device 3 and fixed at the non-detachable long side in the housing 1. A detachable protective cover is also provided on the outside of the heating device 2. The protective cover can prevent the powder of Chinese herbal medicine from contacting the heating rods. After the drying is completed, the protective cover can be detached to facilitate the maintenance and repair of the dryer.

[0037] The heat circulation device 4 includes two ventilation ducts 401 and an exhaust fan installed inside the ventilation ducts 401. The ventilation ducts 401 are arranged outside the housing 1; the top of the ventilation ducts 401 is connected to the top of the housing 1, the bottom of the ventilation ducts 401 is connected to the bottom of the side of the housing 1, the connection port at the top of the ventilation ducts 401 is the air outlet 403, and the connection port at the bottom of the ventilation ducts 401 is the air suction port 402. A fan is provided inside the ventilation ducts 401, and the exhaust fan draws the hot air heated by the heating rods 201 of the dryer into the ventilation ducts 401 from the air suction port 402 and sprays it out from the air outlet 403.

[0038] When the hot air flows, it heats up and dries the Chinese herbal medicine on the conveyor belt that needs to be dried. The fan can set different operating powers to provide different air volumes. When facing Chinese herbal medicines of different shapes, sizes, and different drying degrees, the air volume can be adjusted to ensure that the medicinal effects will not be lost due to the drying operation.

[0039] The working principle process of the present utility model in use is as follows:

[0040] When the present utility model is in use, the operator first adds the Chinese herbal medicine to be dried into the feed inlet 101. Different programs are used for different Chinese herbal medicines, and the controller is started.

[0041] The controller controls the heating rods 201 to start, and the heating rods 201 start to heat the air to provide heat for the Chinese herbal medicine dryer. At the same time, the controller controls the fan to operate. The fan makes the air inside the dryer flow in the order of the air suction port 402, the ventilation ducts 401, and the air outlet 403.

[0042] After heating for a period of time, the controller controls the automatic valve at the feed inlet 101 to open once every other period of time. The Chinese herbal medicine to be dried at the feed inlet 101 enters the dryer at a certain interval. When some Chinese herbal medicines enter the dryer, there will be a certain degree of adhesion. When falling from the feed inlet 101 onto the conveyor belt 301, they will be impacted to separate some of the adhered Chinese herbal medicines.

[0043] When the automatic valve is opened, the servo motor 302 that controls the operation of the conveyor belt 301 is started. The servo motor 302 drives the conveyor belt 301 to operate. The uppermost conveyor belt 301 transports the dried Chinese medicinal materials above through two air outlets 403 and then reaches the area between it and the second conveyor belt 301. When the Chinese medicinal materials fall from the uppermost conveyor belt to the next conveyor belt, they will tumble and rotate. The surface of the Chinese medicinal materials that was originally always in contact with the conveyor belt is turned to the top, and the surface of the Chinese medicinal materials that was always in contact with the conveyor belt can come into full contact with the hot air, improving the evaporation effect of the moisture on the surface of the Chinese medicinal materials. The conveying direction of the second conveyor belt 302 is opposite to that of the first conveyor belt 302, and the Chinese medicinal materials are impacted by another drop when falling onto the second conveyor belt 301. When some Chinese medicinal materials contain more moisture, they cannot be separated by the first drop. After being dried by the uppermost conveyor belt 301 for a period of time, most of the moisture is reduced. After the second drop, the effect of separating the adhered Chinese medicinal materials is achieved. After separation, the surface of the Chinese medicinal materials will be directly exposed to the hot air and can come into full contact with the hot air, improving the moisture evaporation effect. After being transported by the second conveyor belt 301, it reaches the third conveyor belt. Then the third conveyor belt transports the Chinese medicinal materials to the guiding plate. The guiding plate guides the Chinese medicinal materials into the collection basket at the discharge port 102. When the Chinese medicinal materials are dried on the conveyor belt 301, the hot air continuously evaporates the moisture on the surface of the Chinese medicinal materials. The hot air with higher humidity passes through the heating device 2 again to reduce the humidity in the air, realizing the reuse of the waste heat of the dryer. After the operator fills the materials and sets the program, the drying operation can be completed.

[0044] After drying is completed, the side plate of the outer shell 1 can be disassembled, and the protective cover of the heating device 2 can be removed. After disassembly, the dryer can be cleaned. Clean the Chinese medicinal material fragments generated during drying, etc., to prevent the Chinese medicinal materials to be dried from being contaminated when the dryer is used next time.

[0045] The utility model can set different programs to control the temperature, air volume, drying time, and drying degree according to different Chinese medicinal materials. By controlling the operation of the conveyor belt 301 and adjusting the interval between the conveyor belts 301, it is ensured that the drying time and drying degree of each Chinese medicinal material on the conveyor belt 301 are the same, and the drying degree of some Chinese medicinal materials will not be inconsistent due to stacking of Chinese medicinal materials. The Chinese medicinal materials to be dried are subjected to the same wind speed and heat of the hot air, ensuring that the Chinese medicinal materials are evenly heated in the dryer.

[0046] The above shows and describes the basic principles, main features, and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the utility model. The scope claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A Chinese medicinal material drying machine with uniform heating, comprising The shell, heating device, conveying device and heat circulation device are characterized by: The heating device and the conveying device are fixed in the shell, and the heat circulation device is arranged on the surface of the shell; The heat circulation device is provided with an air intake and an air outlet; the heating device is arranged below the conveying device, the air outlet is arranged below the heating device, and the air intake is arranged above the conveying device; The heating device can heat the air, the heat circulation device can circulate the heat inside the dryer, and the conveying device can transport the Chinese medicinal materials that need to be dried and separate the Chinese medicinal materials from each other; The heat circulation device comprises a ventilation duct and an exhaust fan. The exhaust fan is arranged inside the ventilation duct. One end of the ventilation duct is connected to the upper end of the shell, and the connection is the air outlet. The other end of the ventilation duct is connected to the bottom of the side of the shell, and the connection is the air outlet. The heating device includes a plurality of heating rods, which can heat the air and provide heat for the Chinese medicinal material dryer. The heating device is installed below the conveying device and fixed at the non-detachable long side of the shell. A detachable protective cover is also provided on the outside of the heating device, which can prevent the powder of the Chinese medicinal material from contacting the heating rods. The protective cover can be removed after drying to facilitate the maintenance and repair of the dryer.

2. The Chinese medicinal material drying machine with uniform heating according to claim 1, characterized in that: The conveying device is at least two conveyor belts, and multiple servo motors control a single conveyor belt. The conveyor belts are distributed up and down, and multiple ventilation holes are arranged on the surface of the conveyor belts.

3. The Chinese medicinal material drying machine with uniform heating according to claim 2, characterized in that: The edge of one end of the conveyor belt is arranged at the center of the other conveyor belt close to the edge.

4. The Chinese medicinal material drying machine with uniform heating according to claim 2, characterized in that: The conveying device is three conveyor belts.

5. A Chinese medicinal material drying machine with uniform heating according to any one of claims 1 to 4, characterized in that: At least two conveyor belts are arranged parallel to each other.

6. The Chinese medicinal material drying machine with uniform heating according to claim 1, characterized in that: A feed port is arranged above the shell, a discharge port is arranged on the side of the shell, a sealing cover is arranged on the surface of the feed port, and a valve is arranged at the feed port, and the valve can adjust the opening or closing of the feed port.

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