Iron Dendrobium, American ginseng, ophiopogon granules sticking prevention equipment

Abstract

This invention discloses a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. The device includes a main frame and an anti-adhesion drying chamber. A perforated conveyor belt is laid and installed along the length of the main frame. The anti-adhesion drying chamber is installed above the main frame, and the upper layer of the perforated conveyor belt passes through the interior of the chamber. Inside the chamber, the upper layer of the conveyor belt forms a multi-segment continuous undulating structure. A reverse-blowing drying mechanism is installed on the inner side of the main frame, below the undulating structure of the perforated conveyor belt. By installing the reverse-blowing drying mechanism below the perforated conveyor belt, during the drying process of granular materials, the drying air is blown upwards from the bottom of the material by the reverse-blowing drying mechanism, increasing the contact between the material and the air, thus accelerating the cooling and drying process.

Description

Technical Field

[0001] This invention relates to the field of granular material processing, and in particular to a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. Background Technology

[0002] As is well known, granulation is an essential step in the production process of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. When Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules are freshly granulated, the temperature and humidity of the material are often high, making it very easy for the granules to stick together. Therefore, it is necessary to dry and cool the material as soon as possible.

[0003] For example, the authorization announcement number is CN111912192B, the authorization announcement date is April 26, 2022, and the name is an anti-adhesion drying device, which includes a heat source, an air supply mechanism and a drying mechanism. The air supply mechanism delivers the heat generated by the heat source to the drying mechanism. The anti-adhesion drying device provided by this invention effectively meets the purpose of high-temperature drying treatment of the drying cylinder and recycling of the discharged hot air, and reduces the operating energy consumption of the entire equipment.

[0004] As with the above application, in existing equipment, when drying and cooling freshly granulated Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules, the granules are often fed into a drying device. In the drying device, the material is dried by a heat source and an air supply mechanism. However, because the Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules are often piled together, the parts in contact with each other are often difficult to dry properly during the drying process, resulting in granule sticking and affecting product quality. Summary of the Invention

[0005] (I) Purpose of the Invention

[0006] In view of this, the purpose of this invention is to provide a device for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. In the process of conveying and drying granular materials, the drying cold air is blown upward from the bottom of the material under the action of the reverse blowing drying mechanism, which makes the contact between the material and the air higher, thus the cooling and drying speed is faster. Furthermore, when the drying cold air blows onto the material, the material will be thrown upward to a certain height under the blowing of the cold air, so that the materials are separated from each other.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned technical objectives, the present invention provides a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. The device includes a main frame and an anti-adhesion drying chamber. A perforated conveyor belt is laid and installed along the length of the main frame for conveying granular materials. The anti-adhesion drying chamber is installed above the main frame. The upper layer of the perforated conveyor belt passes through the interior of the anti-adhesion drying chamber. A drive motor for driving the perforated conveyor belt is installed on the main frame. Multiple sets of upper pressure rollers and lower support rollers are installed on the main frame within the anti-adhesion drying chamber. Guided by these rollers, the upper layer of the perforated conveyor belt forms a multi-segment continuous undulating structure within the chamber. A reverse-blowing drying mechanism is installed on the inner side of the main frame below the undulating structure of the perforated conveyor belt. This mechanism blows dry, cold air into the upper layer of the perforated conveyor belt to dry the material conveyed on it.

[0009] As a further description of the above technical solution: In the upper pressure roller and lower support roller guiding the upper belt of the mesh conveyor belt to form a multi-segment continuous high and low undulating structure, the upward conveying part is the uphill section and the downward conveying part is the downhill section. The reverse blowing drying mechanism is located below the uphill section, and the anti-sticking drying chamber is equipped with a combing and falling mechanism located above the uphill section.

[0010] As a further description of the above technical solution: the combing and falling mechanism includes a mandrel, a sleeve and a combing part, wherein the mandrel is installed perpendicular to the moving direction of the mesh conveyor belt, the sleeve is rotatably sleeved on the mandrel, the combing part is disposed on the sleeve and arranged along the length direction of the sleeve, and the combing part adopts a toothed structure.

[0011] As a further description of the above technical solution: the inner side of the toothed structure of the combing part is provided with a wind hood, and a limiting baffle is provided below the mandrel. When the combing part contacts the limiting baffle, there is an angle ∠α between the extension line of the width direction of the combing part and the surface of the upslope section. The value of ∠α is 90°≤∠α<120°.

[0012] As a further description of the above technical solution: the reverse blowing drying mechanism includes a wind frame, the wind frame has an air cavity inside, the top of the wind frame is parallel to the uphill section, the upper surface of the wind frame has a reverse blowing air outlet in a direction perpendicular to the moving direction of the mesh conveyor belt, the side of the main frame of the equipment is equipped with an air supply pipe joint, the air supply pipe joint is connected to the air cavity, and the air supply direction of the reverse blowing air outlet is provided with an angle ∠β between it and the conveying direction of the uphill section, where ∠β takes the value of 0°<∠β<60°.

[0013] As a further description of the above technical solution: the wind frame has an installation cavity inside, an adjustment plate is movably installed in the installation cavity, the surface of the adjustment plate has a ventilation opening at the corresponding position of the reverse air blowing port, and the adjustment plate is connected to the inner wall of the installation cavity by a telescopic adjustment device.

[0014] As a further description of the above technical solution: the upper pressure roller adopts a two-section structure, which is located at the two side edges of the mesh conveyor belt. The surface edge of the mesh conveyor belt is provided with a ring of anti-derailment clips, and the surface of the upper pressure roller is provided with a ring of anti-derailment slots along the circumference. The anti-derailment clips are engaged in the anti-derailment slots.

[0015] As a further description of the above technical solution: a condensation dehumidification mechanism is installed inside the anti-adhesion drying chamber above the mesh conveyor belt. The condensation dehumidification mechanism includes a suspended condenser plate, wherein the suspended condenser plate is suspended above the anti-adhesion drying chamber by a hanger rod. The suspended condenser plate has a continuous fluid flow channel inside, and each of the fluid flow channels is equipped with a condensate pipe for water inlet and outlet.

[0016] As a further description of the above technical solution: the cross-section of the suspended condenser plate is a trapezoidal structure with a horizontal upper part and downward sloping sides. Several ventilation slots are equidistantly provided on the horizontal structure of the suspended condenser plate along the length direction. Condensate tanks are installed on both sides of the interior of the anti-adhesion drying chamber along the length direction. The bottom of both sides of the suspended condenser plate are located in the condensate tanks. A drain pipe is connected to the condensate tanks.

[0017] As a further description of the above technical solution: multiple auxiliary exhaust fans are equidistantly installed on the top of the anti-adhesion drying chamber, which are used to assist in the discharge of gas inside the anti-adhesion drying chamber.

[0018] In the above technical solution, the present invention provides a device for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. This device installs a reverse-blowing drying mechanism below the mesh conveyor belt. During the conveying and drying process of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules, the drying cold air is blown upward from the bottom of the material under the action of the reverse-blowing drying mechanism, which increases the contact between the material and the air, thus making the cooling and drying speed faster. When the drying cold air blows onto the material, the material will be thrown upward to a certain height under the blowing of the cold air, separating the materials from each other and exposing the surface of the materials, further improving the cooling rate of the materials. At the same time, this drying process makes the moisture on the surface of the materials quickly blown away, thus reducing the stickiness between the materials and preventing the materials from sticking together.

[0019] In this equipment, the anti-sticking drying chamber is also equipped with a combing and falling mechanism. Through the design of the combing and falling mechanism, when the air blows from below to the top, the combing and falling mechanism will bounce up and down when the air pressure changes, forming a rocking plate. This allows the material in contact with the combing section to be "patted", thus significantly improving the combing effect of the combing section and increasing the cooling speed of the material. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules provided by the present invention;

[0022] Figure 2 Another structural schematic diagram of a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules provided by the present invention;

[0023] Figure 3 This invention provides a schematic diagram of the internal structure of the anti-adhesion drying chamber in an equipment for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules.

[0024] Figure 4 This is a cross-sectional view of a device for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules provided by the present invention when the combing and falling mechanism is not installed;

[0025] Figure 5 This invention provides a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. Figure 4 Enlarged structural diagram of area A in the middle;

[0026] Figure 6 A cross-sectional view of the equipment for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules during the installation of the combing and dropping mechanism provided by the present invention;

[0027] Figure 7 This invention provides a schematic diagram of a combing and falling mechanism in an equipment for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules.

[0028] Figure 8 This invention provides a schematic diagram of the installation angle of the combing and falling mechanism in an equipment for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules;

[0029] Figure 9This is a schematic diagram of a reverse-blowing drying mechanism in an equipment for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules, provided by the present invention.

[0030] Figure 10 This is a partial cross-sectional view of the reverse-blowing drying mechanism in an equipment for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules provided by the present invention;

[0031] Figure 11 This invention provides a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules. Figure 10 Enlarged structural diagram of area B in the middle;

[0032] Figure 12 This invention provides a schematic diagram of the angle of the reverse air outlet in a device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules.

[0033] Attached Figure Descriptions: 1. Main frame of the equipment; 101. Drive motor; 102. Air supply duct connector; 2. Anti-adhesion drying chamber; 201. End plate; 202. Auxiliary exhaust fan; 203. Condensate tank; 204. Drain pipe; 3. Mesh conveyor belt; 301. Anti-derailment belt; 3a. Downhill section; 3b. Uphill section; 4. Condensation dehumidification mechanism; 401. Suspended condensate plate; 402. Condensate pipe; 403. Hanging rod; 4 04. Ventilation slot; 5. Upper pressure roller; 501. Anti-derailment clamp; 6. Lower support roller; 7. Back-blowing drying mechanism; 701. Air frame; 7011. Back-blowing air outlet; 7012. Mounting cavity; 7013. Air cavity; 702. Adjusting plate; 7021. Ventilation opening; 703. Telescopic adjustment device; 8. Combing and falling mechanism; 801. Sleeve; 802. Mandrel; 803. Limiting baffle; 804. Combing section; 805. Air hood. Detailed Implementation

[0034] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0035] Example 1

[0036] Please see Figure 1-4 This embodiment provides a technical solution: a device for preventing the sticking of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules, including a main frame 1, on which a mesh conveyor belt 3 is laid and installed along the length direction for conveying granular materials;

[0037] An anti-adhesion drying chamber 2 is installed above the main frame 1 of the equipment. The upper belt of the mesh conveyor belt 3 passes through the interior of the anti-adhesion drying chamber 2. The main frame 1 of the equipment is equipped with a drive motor 101 for driving the mesh conveyor belt 3 to convey.

[0038] The main frame 1 of the equipment is equipped with multiple sets of upper pressure rollers 5 and lower support rollers 6 located inside the anti-sticking drying chamber 2. Guided by the multiple sets of upper pressure rollers 5 and lower support rollers 6, the upper belt of the mesh conveyor belt 3 forms a multi-segment continuous high and low undulating structure inside the anti-sticking drying chamber 2. A reverse blowing drying mechanism 7 is installed on the inner side of the main frame 1 below the high and low undulating structure of the mesh conveyor belt 3. The reverse blowing drying mechanism 7 blows dry cold air into the upper belt of the mesh conveyor belt 3 to dry the material conveyed on the mesh conveyor belt 3.

[0039] It should be noted that during the drying process of granular materials, the drying cold air blows upward from the bottom of the material. When the drying cold air blows onto the material, the material will be thrown upward to a certain height under the blowing of the cold air, which allows the material to separate and expose the surface, so that the material can be cooled quickly (the cooling speed is slow when the material is piled up, and fast when it is loosened). In addition, this drying process allows the moisture on the surface of the material to be blown away quickly, so the stickiness between the materials is reduced, thereby preventing the materials from sticking together.

[0040] Example 2

[0041] Please see Figure 6-8 This embodiment provides a technical solution: Based on embodiment 1, the upper pressure roller 5 and the lower support roller 6 guide the upper layer of the mesh conveyor belt 3 to form a multi-segment continuous high and low undulating structure, wherein the upward conveying part is the uphill section 3a and the downward conveying part is the downhill section 3b. The reverse blowing drying mechanism 7 is located below the uphill section 3a. The anti-sticking drying chamber 2 is equipped with a combing and falling mechanism 8 located above the uphill section 3a. The combing and falling mechanism 8 can comb the thrown material, making the material more dispersed and loose, which can improve the cooling and drying speed of the material.

[0042] Furthermore, the combing and falling mechanism 8 includes a mandrel 802, a sleeve 801, and a combing part 804. The mandrel 802 is installed perpendicular to the moving direction of the mesh conveyor belt 3, and the sleeve 801 is rotatably sleeved on the mandrel 802. The combing part 804 is disposed on the sleeve 801 and is arranged along the length direction of the sleeve 801. The combing part 804 adopts a toothed structure. This structure allows the material to come into contact with the combing part 804 when it is thrown up, so that the sticky material can be separated more quickly and the cooling speed can be improved.

[0043] Specifically, the combing section 804 has an air vent 805 on the inner side of its toothed structure, and a limit baffle 803 is provided below the spindle 802, such as... Figure 8 As shown, when the combing part 804 contacts the limiting baffle 803, there is an angle ∠α between the extension line of the width direction of the combing part 804 and the surface of the upslope section 3a, and the value of ∠α is 90°≤∠α<120°.

[0044] It should be noted that when ∠α is less than 90°, the material is unlikely to contact the combing section 804 when it is thrown up, affecting the material dispersion effect. When ∠α is greater than 120°, most of the material hits the bottom of the combing section 804, which cannot achieve a good combing effect and also affects the material dispersion effect. The setting of the air hood 805 allows the combing section 804 to rotate a certain angle under the action of the air hood 805 when the air blows from below to the top. In this way, when the air pressure of the blown air changes (which can be adjusted by the external air supply equipment to make the air pressure fluctuate), the combing section 804 will have an up-and-down shaking effect, forming a rocking plate, so that the material in contact with the combing section 804 can be "slapped", thus significantly improving the combing effect of the combing section 804 and increasing the cooling speed of the material.

[0045] Example 3

[0046] Please see Figure 9-12 This embodiment provides a technical solution: Based on embodiment 2, the reverse-blowing drying mechanism 7 includes a wind frame 701, with an air cavity 7013 inside the wind frame 701. The top of the wind frame 701 is parallel to the uphill section 3a. A reverse-blowing air outlet 7011 is opened on the upper surface of the wind frame 701 in a direction perpendicular to the moving direction of the mesh conveyor belt 3. An air supply pipe connector 102 is installed on the side of the main frame 1 of the equipment, and the air supply pipe connector 102 is connected to the air cavity 7013. This structural arrangement allows air to be blown from the reverse-blowing air outlet 7011 above the air cavity 7013 to the bottom of the uphill section 3a when the air supply pipe connector 102 is connected to an external air supply device. This causes the material conveyed above the uphill section 3a to be thrown up a certain distance, achieving loosening of the material and achieving rapid cooling and drying. Further, as... Figure 12 As shown, there is an angle ∠β between the air supply direction of the reverse air outlet 7011 and the conveying direction of the uphill section 3a. The value of ∠β is 0°<∠β<60°. This angle setting allows the material to have forward kinetic energy when it is blown up, so that it can continue to move forward when it falls back and will not stack with the material being conveyed later.

[0047] Furthermore, the air frame 701 has an internal mounting cavity 7012, and an adjusting plate 702 is movably mounted inside the mounting cavity 7012. A ventilation port 7021 is formed on the surface of the adjusting plate 702 at a position corresponding to the reverse air outlet 7011. The adjusting plate 702 is connected to the inner wall of the mounting cavity 7012 via a telescopic adjusting device 703. During equipment operation, the airflow rate into the air chamber 7103 is fixed. The gas inside the air chamber 7013 passes through the ventilation port 7021 and the reverse air outlet 7011 and is sprayed onto the mesh conveyor belt 3. When the ventilation port 7021 and the reverse air outlet 7011 are aligned... When the reverse air inlet 7011 is completely aligned, the "effective ventilation channel" is at its maximum, and the air pressure is at its minimum. Conversely, when the air inlet 7021 is misaligned with the reverse air inlet 7011, the "effective ventilation channel" becomes smaller. As the misalignment gradually increases, the air pressure gradually increases, and the distance that the air blown onto the mesh conveyor belt 3 can throw the material increases. This structural design allows the device to adjust the air pressure according to the humidity of the material, making it suitable for cooling and drying the material, thereby improving the applicability of the device. Specifically, the telescopic adjustment device 703 adopts an electric telescopic rod or a pneumatic telescopic rod.

[0048] It should be noted that when the telescopic adjustment device 703 is set to step-by-step operation, that is, when the telescopic adjustment device 703 continuously drives the adjustment plate 702 to reciprocate, the air pressure gap of the gas blown out from the reverse air outlet 7011 can be changed, thereby forming a rocking plate structure for the combing and falling mechanism 8 to achieve combing of materials.

[0049] Example 4

[0050] Please see Figure 4-5 This embodiment provides a technical solution: Based on embodiment 1, to avoid the upper pressure roller 5 affecting the material conveying, the upper pressure roller 5 adopts a two-section structure, located at the two side edges of the mesh conveyor belt 3. This can prevent the upper pressure roller 5 from blocking the material. However, since the mesh conveyor belt 3 is a soft structure, the upper pressure roller 5 is located at the edge of the mesh conveyor belt 3, which makes it very easy for the mesh conveyor belt 3 to "derail". To avoid this situation, the surface edge of the mesh conveyor belt 3 is provided with a ring of anti-derailment clip 301, and the surface of the upper pressure roller 5 is provided with a ring of anti-derailment slots 501 along the circumference. The anti-derailment clip 301 is always engaged in the anti-derailment slots 501 during the transmission of the mesh conveyor belt 3. The anti-derailment clip 301 is made of rubber with a certain toughness and elasticity. On the one hand, it does not affect the transmission of the mesh conveyor belt 3, and on the other hand, the anti-derailment clip 301 can play a locking role for the mesh conveyor belt 3, thereby preventing derailment.

[0051] Example 4

[0052] Please see Figure 1-4This embodiment provides a technical solution: end plates 201 are installed at both ends of the anti-adhesion drying chamber 2. A condensation and dehumidification mechanism 4 is installed inside the anti-adhesion drying chamber 2 above the mesh conveyor belt 3. The condensation and dehumidification mechanism 4 can dehumidify the humid air inside the anti-adhesion drying chamber 2, thereby increasing the drying speed of the material. The condensation and dehumidification mechanism 4 includes a suspended condensation plate 401, which is suspended above the anti-adhesion drying chamber 2 by a hanger 403. The suspended condensation plate 401 has a continuous fluid flow channel inside, and each fluid flow channel is equipped with a condensate pipe 402 for water inlet and outlet. This structural arrangement allows the water vapor in the air to be condensed when the humid air being cooled comes into contact with the suspended condensation plate 401 during the cooling process, thereby achieving the effect of dehumidifying the air, ensuring the dryness of the gas inside the anti-adhesion drying chamber 2, and increasing the drying speed of the material.

[0053] Furthermore, the suspended condenser plate 401 has a trapezoidal cross-section with a horizontal upper section and downward sloping sides. Several ventilation slots 404 are equidistantly spaced along the length of the horizontal structure of the suspended condenser plate 401. Condensate tanks 203 are installed along the length of both sides inside the anti-adhesion drying chamber 2. The bottom of both sides of the suspended condenser plate 401 are located within the condensate tanks 203. Drain pipes 204 are connected to the condensate tanks 203. This structural arrangement allows the condensed water to quickly collect in the condensate tanks 203 through both sides of the suspended condenser plate 401 and then be discharged through the drain pipes 204, preventing the condensed water from dripping back onto the material on the mesh conveyor belt 3.

[0054] Furthermore, multiple auxiliary exhaust fans 202 are equidistantly installed on the top of the anti-adhesion drying chamber 2. These fans are used to assist in the discharge of gas inside the anti-adhesion drying chamber 2, increase the gas circulation speed inside the anti-adhesion drying chamber 2, and thus accelerate the drying speed of the material inside the anti-adhesion drying chamber 2.

[0055] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules, characterized in that, include: The main frame of the equipment (1) has a mesh conveyor belt (3) laid and installed on its upper part along the length direction for conveying granular materials; The anti-adhesion drying chamber (2) is installed above the main frame (1) of the equipment. The upper belt of the mesh conveyor belt (3) passes through the inside of the anti-adhesion drying chamber (2). The main frame (1) of the equipment is equipped with a drive motor (101) for driving the mesh conveyor belt (3). Among them, multiple sets of upper pressure rollers (5) and lower support rollers (6) are installed on the main frame (1) of the equipment in the internal area of ​​the anti-adhesion drying chamber (2). The upper belt of the mesh conveyor belt (3) is guided by the multiple sets of upper pressure rollers (5) and lower support rollers (6) to form a multi-segment continuous high and low undulating structure inside the anti-adhesion drying chamber (2). A reverse blowing drying mechanism (7) is installed on the inner side of the main frame (1) below the high and low undulating structure of the mesh conveyor belt (3). The reverse blowing drying mechanism (7) is used to dry the mesh conveyor belt. Drying cold air is blown into the upper belt of belt (3) to dry the material conveyed on the mesh conveyor belt (3). The upper pressure roller (5) and the lower idler roller (6) guide the upper belt of the mesh conveyor belt (3) to form a multi-segment continuous high and low undulating structure. The part conveyed upward is the uphill section (3a), and the part conveyed downward is the downhill section (3b). The reverse blowing drying mechanism (7) is located below the uphill section (3a). The anti-stick drying chamber (2) is located above the uphill section (3a) and a combing and falling mechanism (8) is installed inside. The combing and falling mechanism (8) includes a spindle (802) installed perpendicular to the moving direction of the mesh conveyor belt (3), a sleeve (801) rotatably sleeved on the spindle (802), and a combing part (804) set on the sleeve (801) and arranged along the length direction of the sleeve (801). The combing part (804) adopts a toothed structure. An air pocket (805) is provided on the inner side of the toothed structure of the combing part (804). A limit baffle (803) is provided below the spindle (802). When the combing part (804) contacts the limit baffle (803), there is an angle ∠α between the extension line of the width direction of the combing part (804) and the surface of the uphill section (3a). The value of ∠α is 90°≤∠α<120°.

2. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 1, characterized in that, The reverse blowing drying mechanism (7) includes a wind frame (701), and the wind frame (701) is provided with a wind cavity (7013). The top of the wind frame (701) is parallel to the uphill section (3a). The upper surface of the wind frame (701) is provided with a reverse blowing air port (7011) in a direction perpendicular to the moving direction of the mesh conveyor belt (3). The side of the main frame (1) of the equipment is equipped with an air supply pipe connector (102). The air supply pipe connector (102) is connected to the wind cavity (7013). The air supply direction of the reverse blowing air port (7011) is provided with an angle ∠β between it and the conveying direction of the uphill section (3a). The value of ∠β is 0° < ∠β < 60°.

3. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 2, characterized in that, The wind frame (701) has an installation cavity (7012) inside, and an adjustment plate (702) is movably installed in the installation cavity (7012). The surface of the adjustment plate (702) has a ventilation opening (7021) at the corresponding position of the reverse air outlet (7011). The adjustment plate (702) and the inner wall of the installation cavity (7012) are connected by a telescopic adjustment device (703).

4. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 1, characterized in that, The upper pressure roller (5) adopts a two-section structure and is located on both sides of the mesh conveyor belt (3). The surface edge of the mesh conveyor belt (3) is provided with a ring of anti-derailment clip (301). The surface of the upper pressure roller (5) is provided with a ring of anti-derailment slot (501) along the circumferential direction. The anti-derailment clip (301) is engaged in the anti-derailment slot (501).

5. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 1, characterized in that, The anti-adhesion drying chamber (2) is equipped with a condensation dehumidification mechanism (4) located above the mesh conveyor belt (3). The condensation dehumidification mechanism (4) includes a suspended condenser plate (401), which is suspended above the anti-adhesion drying chamber (2) by a hanger (403). The suspended condenser plate (401) has a continuous fluid flow channel inside, and each fluid flow channel is equipped with a condensate pipe (402) for water inlet and outlet.

6. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 5, characterized in that, The suspended condenser plate (401) has a cross-section that is horizontal at the top and downward inclined on both sides. Several ventilation slots (404) are equidistantly provided on the horizontal structure of the suspended condenser plate (401) along the length direction. Condensation tanks (203) are installed on both sides of the anti-adhesion drying chamber (2) along the length direction. The bottom of both sides of the suspended condenser plate (401) are located in the condensation tanks (203). Drain pipes (204) are connected to the condensation tanks (203).

7. The device for preventing the adhesion of Dendrobium officinale, American ginseng, and Ophiopogon japonicus granules according to claim 6, characterized in that, Multiple auxiliary exhaust fans (202) are installed at equal intervals on the top of the anti-adhesion drying chamber (2) to assist in the exhaust of gas inside the anti-adhesion drying chamber (2).

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