CN206131663U - Belt medicinal material drying -machine - Google Patents

Abstract

The invention of the utility model provides a belt-type medicinal material dryer, comprising: a box body, the box body is provided with a vertically placed partition, and the space inside the box is divided into a drying room and a return air by the partition board. In the drying chamber, there are first condensers on both sides of the partition in the drying chamber, and two second condensers are arranged between the two first condensers; the moisture outlets in the drying chamber are respectively fixed There are dehumidification hoods, and the dehumidification ports of each dehumidification hood respectively face the drying room, and the dehumidification ports of each dehumidification hood are respectively connected with sealing covers, and each dehumidification hood is respectively fixed with a negative pressure valve. The valve is connected with the sealing cover, and the negative pressure valve can drive the sealing cover to open and close. The utility model creates the belt-type medicinal material drying machine, which improves the drying speed and drying effect, shortens the drying time to reduce the power consumption of the equipment, has good dehumidification effect, uniform feeding, reduces the processing cost of medicinal materials, and saves Lots of energy.

Description

Belt type herbal medicine dryer

technical field

The invention belongs to the technical field of medicinal material drying, and in particular relates to a belt type medicinal material drying machine.

Background technique

As we all know, the purpose of using a drying device in the pharmaceutical industry is to remove some raw materials, moisture or solvents in semi-finished products, so as to improve product quality, facilitate material processing, use, and facilitate transportation and storage. Existing drying boxes generally include material conveying Belt and heating drying device, but the existing equipment generally has the following problems: hot air blows continuously across the surface of the mesh belt to dry the materials on it, and the supply of hot air is uneven, resulting in uneven drying of medicinal materials; The number of conveyor belts is generally one, so that the material enters from the feeding end and is finally sent out from the discharging end. The whole process is not stirred, resulting in inconsistent drying effects between the materials pressed on the bottom layer and the materials on the surface layer. If the conveyor belt is short, it will cause drying. Incomplete; in conventional drying devices, the moisture content of the air entering the dryer is equal to the humidity content of the ambient air. When the ambient temperature is high, the moisture content is high and the material requires low-temperature drying, the application of this drying device will be limited to a certain extent; The dehumidification device of existing equipment generally has incomplete dehumidification, which leads to incomplete drying of medicinal materials and difficult control of the quality of dried products.

Contents of the invention

In view of this, the present invention aims to propose a belt-type medicinal material dryer, which can improve the drying speed and drying effect, shorten the drying time to reduce the power consumption of the equipment, and has good dehumidification effect, uniform feeding, and reduces the drying time of medicinal materials. processing costs and save a lot of energy.

In order to achieve the above object, the technical solution created by the present invention is achieved in this way:

Belt type herbal medicine dryer, including:

The box body is provided with a partition plate placed vertically, and the partition plate divides the space in the box body into a drying chamber and a return air chamber, and the two sides of the partition board side of the drying room are respectively provided with There is a first condenser, and two second condensers are arranged between the two first condensers;

Each first condenser and each second condenser are respectively fixed with a plurality of blowers, and the blowers are placed in the air return chamber, and the blowing outlets of each blower are respectively facing the drying chamber;

A plurality of suction fans are fixedly connected to the lower part of the partition in the return air chamber close to the first condenser and the second condenser, and one end of the suction port on the suction fan passes through the partition and faces the drying chamber;

A dehumidification air duct is provided above the drying chamber, and a plurality of dehumidification outlets are opened on the top of the drying chamber, and the drying chamber communicates with the dehumidification air duct through the dehumidification outlets;

Dehumidification hoods are fixedly connected to the dehumidification outlets in the drying chamber, and the dehumidification outlets of each dehumidification hood are respectively facing the drying room. The dehumidification outlets of each dehumidification hood are respectively connected with sealing covers. Connected with a negative pressure valve, the negative pressure valve is connected to the sealing cover, and the negative pressure valve can drive the sealing cover to open and close;

Both sides of each dehumidification outlet in the dehumidification air duct are respectively fixed with air guide plates, and the two air guide plates are bell-shaped. One side of the air guide plate is fixedly connected to the bottom surface of the dehumidification air duct. The other side of the wind plate is fixedly connected with a wind guide curved plate;

A separate dehumidification motor is provided above each dehumidification outlet in the dehumidification air duct, and a main dehumidification motor is provided at one end of the dehumidification air duct.

Further, the drying chamber is provided with a plurality of mesh belts arranged up and down, and the direction of movement between adjacent mesh belts is opposite, and the end of each mesh belt is longer than the upper layer of mesh belt along its material moving direction. A certain distance is used to pick up materials. The head end of the uppermost mesh belt extends out of the box to form a material receiving end. The lower part of one side of the box has a discharge port, and the end of the bottom mesh belt is close to the discharge port. The receiving end, the side wall of the drying chamber and the corresponding positions on the partition are respectively provided with support plates with the same number of layers as the mesh belt, and the support plates are respectively used to support the mesh belt.

Further, each layer of mesh belt is driven by a driving motor respectively.

Further, a feeding device is provided outside the box, and the feeding device includes a frame, a hopper, and an inclined conveying mesh belt, and the hopper and the conveying mesh belt are respectively fixed on the frame. There is a discharge opening on one side of the bottom of the hopper, and the end of one end of the conveying mesh belt is placed below the discharge opening;

A plurality of parallel material partitions are fixed at equal intervals on the conveyor belt, and the material partitions are perpendicular to the conveying direction of the conveyor belt, and a distributor is arranged on the frame close to the hopper, and the distributor is placed Above the conveyor belt, the distance between the distributor and the conveyor belt can be adjusted;

A pusher is arranged inside the hopper, and the pusher is connected with a push motor, and the push motor drives the pusher to rotate and push materials, and the pusher rotates counterclockwise.

Further, the distributor includes a distribution board, lifting brackets are fixedly connected to both sides of the distribution board, fixed brackets matching the lifting brackets are fixed on the frame, and the fixing brackets are sleeved on the lifting brackets , and the lifting bracket can move up and down relative to the fixed bracket, and the fixed bracket is provided with a locking piece capable of fixing the position of the lifting bracket.

Further, the rotation of the conveying mesh belt is driven by a conveying mechanism, and the conveying mechanism includes two sets of conveying gears, a conveying chain is connected between the two sets of conveying gears, and a driven wheel is coaxially connected to the conveying gears close to the hopper. A transmission motor is fixedly connected to the frame, the output shaft of the transmission motor is connected with a driving wheel, and a driving chain is connected between the driving wheel and the driven wheel.

Further, the pusher includes a push roller and a push plate, and a plurality of push plates are staggeredly distributed along the axial direction on the push roller.

Further, the air guide plate forms an included angle of 40°-80° with the bottom surface of the dehumidification air duct.

Further, the wind guiding curved plate is arc-shaped.

Further, the dehumidification port of each dehumidification cover is respectively fixed with a supporting member capable of preventing the sealing cover from falling.

Compared with the prior art, the belt-type medicinal material dryer described in the invention has the following advantages:

Two first condensers and two second condensers are used in the drying box of the present invention, which ensures that the hot air can be evenly dispersed into the drying room. The drying room is equipped with multi-layer mesh belts, and the blower will return the air to the drying room. The air in the room is blown into the condenser to heat the air, and the hot air enters the drying room through the condenser, and after passing through the multi-layer mesh belt, it is sucked into the return air room by the suction fan, so that the air is formed between the drying room and the return air room. The powerful circulating flow ensures the drying quality of medicinal materials, improves the drying speed of medicinal materials, and shortens the drying time. The use of air-source high-temperature heat pumps reduces the power consumption of equipment, thereby reducing the processing cost of medicinal materials;

The dehumidification device is equipped with an air guide plate and an air guide curved plate. A dehumidification motor is installed above each moisture outlet. The dehumidification motor sucks up the moisture and guides the wind with moisture to the dehumidification air duct through the air guide plate. Walking above the top of the dehumidification main motor, the suction negative pressure of the dehumidification main motor is greater than that of each dehumidification sub-motor. The dehumidification main motor will suck the wind in the dehumidification air duct. The wind enters the connection between the air deflector and the lower surface of the dehumidification air duct, which avoids the problem of incomplete dehumidification. The device has high dehumidification efficiency and effectively ensures the drying quality of medicinal materials;

In the feeding device, there is a distributor on the feeding conveying belt, and a material pusher is provided in the hopper, which ensures that the material can be smoothly conveyed to the conveying belt. The height of the distributor can be adjusted according to the actual medicinal materials. Drying thickness adjusts the height of the distributor to improve the drying quality and drying efficiency of medicinal materials.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a schematic diagram of the overall structure described in the embodiment of the invention;

Fig. 2 is a partially enlarged schematic diagram of A place in Fig. 1;

Fig. 3 is a schematic diagram of the structure of the return air chamber described in the inventive embodiment of the present invention;

Fig. 4 is a schematic diagram of the hot air circulation structure described in the inventive embodiment of the present invention;

Fig. 5 is a schematic top view structure diagram of the feeding device described in the inventive embodiment of the present invention;

Fig. 6 is a schematic diagram of the structure of the distributor according to the inventive embodiment of the present invention;

Fig. 7 is a schematic structural diagram of the pusher described in the inventive embodiment of the present invention.

Explanation of reference signs:

1-box; 101-drying chamber; 102-return air chamber; 103-dehumidification air duct; 104-drain outlet; 105-partition; 106-outlet; Belt; 4-lower mesh belt; 5-first condenser; 6-second condenser; 7-suction fan; 8-blower; 9-drive motor; 10-dehumidification cover; 1001-support; ;11-wind guide plate; 12-wind guide curved plate; 13-negative pressure valve; 14-dehumidification motor; 15-dehumidification main motor; 16-feeding device; 161-frame; Material port; 163-conveyor mesh belt; 164-conveyor chain; 165-partition plate; 166-distributor; 1661-distributor plate; 1662-lifting bracket; 1671-push roller; 1672-push plate; 168-push motor; 169-transmission motor;

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in Figure 1-4, the belt type medicinal material dryer includes:

Cabinet 1, the cabinet 1 is provided with a vertical partition 105, the partition 105 divides the space inside the cabinet 1 into a drying chamber 101 and a return air chamber 102, which are placed in the drying chamber 101 The two sides of one side of the partition 105 are respectively provided with a first condenser 5, and two second condensers 6 are provided between the two first condensers 5;

Each first condenser 5 and each second condenser 6 are respectively fixed with a plurality of blowers 8, and the blowers 8 are placed in the return air chamber 102, and the air outlets of each blower 8 are respectively facing the drying chamber. 101;

The lower part of the partition 105 in the return air chamber 102 is respectively fixed with a plurality of suction fans 7 close to the first condenser 5 and the second condenser 6, and one end of the air suction port on the suction fan 7 passes through the partition 105 toward the drying Room 101;

A dehumidification air duct 103 is provided above the drying chamber 101, and a plurality of dehumidification outlets 104 are opened on the top of the drying chamber 101, and the drying chamber 101 communicates with the dehumidification air duct 103 through the dehumidification outlets 104;

The dehumidification ports 104 in the drying chamber 101 are respectively fixed with dehumidification covers 10, and the dehumidification ports of each dehumidification cover 10 face into the drying chamber 101 respectively, and the dehumidification ports of each dehumidification cover 10 are respectively connected with sealing covers. 1002, each dehumidification cover 10 is respectively fixed with a negative pressure valve 13, the negative pressure valve 13 is connected to the sealing cover 1002, and the negative pressure valve 13 can drive the sealing cover 1002 to open and close;

Both sides of each dehumidification outlet 104 in the dehumidification air duct 103 are fixedly connected with air deflectors 11 respectively, and the two air deflectors 11 are bell-shaped. The bottom surface is fixed, the air deflector 11 and the bottom surface of the dehumidification air duct 103 form an angle of 40° to 80°, and the other side of the air deflector 11 is fixed with an air deflector bend 12, and the wind deflector bend The plate 12 is arc-shaped;

A dehumidification sub-motor 14 is provided above each dehumidification outlet 104 in the dehumidification air duct 103 , and a dehumidification main motor 15 is provided at one end of the dehumidification air duct 103 .

As shown in Figure 1, the drying chamber 101 is provided with a plurality of mesh belts arranged up and down, and the direction of movement between adjacent mesh belts is opposite, and the end of each mesh belt is lower than the edge of the upper mesh belt. The moving direction of the material extends a certain distance for receiving the material. The head end of the uppermost mesh belt extends out of the outer side of the box body 1 to form a material receiving end. The end of the belt is close to the discharge port 106 to form the receiving end, and the corresponding positions on the side wall and the partition plate 105 in the drying chamber 101 are respectively provided with support plates 17 with the same number of layers as the mesh belt, and the support plates 17 are respectively used To support the mesh belt; each layer of mesh belt is driven by the drive motor 9 respectively.

As shown in Fig. 1 and Fig. 5, described box body 1 is provided with feeding device 16 outside, and described feeding device comprises frame 161, hopper 162 and the conveyor mesh belt 163 that obliquely arranges, and described hopper 162 and described The conveying mesh belts 163 are fixedly connected to the frame 161 respectively, and one side of the bottom of the hopper 162 has a discharge port 1621, and the end of one end of the conveying mesh belt 163 is placed below the discharge port 1621;

A plurality of parallel material partitions 165 are fixedly connected at equal intervals on the conveying mesh belt 163, and the material separating plates 165 are perpendicular to the conveying direction of the conveying mesh belt 163, and the frame 161 near the hopper 162 is provided with a distributor. 166, and the distributor 166 is placed above the conveyor belt 163, and the distance between the distributor 166 and the conveyor belt 163 is adjustable;

The hopper 162 is provided with a pusher 167, and the pusher 167 is connected with a pusher motor 168, and the pusher 168 drives the pusher 167 to rotate and push materials, and the pusher 167 rotates counterclockwise.

As shown in Figure 6, the distributor 166 includes a distribution board 1661, the two sides of the distribution board 1661 are respectively fixed with lifting brackets 1662, and the frame 161 is fixed with a fixed bracket 1663 that matches the lifting bracket 1662 , the fixed bracket 1663 is sleeved on the lifting bracket 1662, and the lifting bracket 1662 can move up and down relative to the fixing bracket 1663, and the fixing bracket 1663 is provided with a locking member 1664 capable of fixing the position of the lifting bracket 1662.

As shown in Figure 1, the rotation of the transmission mesh belt 163 is driven by a transmission mechanism, and the transmission mechanism includes two groups of transmission gears 1610, and a transmission chain 164 is connected between the two groups of transmission gears 1610, and the transmission gear 1610 near the hopper 162 A driven wheel 1613 is connected to the upper coaxial, and a transmission motor 169 is fixedly connected to the frame 161. The output shaft of the transmission motor 169 is connected to a driving wheel 1611, and a driving wheel 1611 is connected between the driving wheel 1611 and the driven wheel 1613. Chain 1612.

As shown in FIG. 7 , the pusher 167 includes a push roller 1671 and a push plate 1672 , and a plurality of push plates 1672 are staggeredly distributed on the push roller 1671 along the axial direction.

As shown in FIG. 2 , a support 1001 capable of preventing the sealing cover 1002 from falling is fixedly connected to the dehumidification port of each dehumidification cover 10 .

The working process of this embodiment: the medicinal material is placed in the hopper 162, the push roller 1671 rotates counterclockwise, the pushing plate 1672 pushes the medicinal material onto the conveying mesh belt 163, and there are a plurality of material partition plates 165 on the conveying mesh belt 163 to convey The mesh belt 163 is divided into multiple regions, and when each region passes through the discharge port 1621 of the hopper 162, a certain amount of medicinal materials falls in the region, and when passing through the distributor 166, the distributor 166 distributes the medicinal materials evenly, and the distributor 166 The height can be adjusted according to the spreading thickness of the medicinal materials. The conveying mesh belt 163 is driven by the rack and pinion structure to transport the medicinal materials to the dryer for drying treatment. The highest point of the feeding device is higher than the receiving end of the drying device;

The material receiving end of the upper mesh belt 2 is continuously fed with materials, and the materials are circulated and dried between the upper mesh belt 2, the middle mesh belt 3 and the lower mesh belt 4, and then the dried medicinal materials are collected at the receiving end. During the drying process, the blower 8 continuously blows air into the drying chamber 101, and the suction fan 7 sucks the air in the drying chamber 101, so that a strong gas circulation is formed between the drying chamber 101 and the return air chamber 102. There are four sets of condensers in the equipment, and each set of condensers has a corresponding air-source high-temperature heat pump unit. The air-source high-temperature heat pump unit includes an evaporator, and the liquid outlet of the evaporator outputs low-pressure liquid, and the low-pressure liquid enters the gas-liquid separation After the condenser, the gas and liquid are separated, and the separated gas enters the heat pump compressor and is compressed into a high-temperature and high-pressure gas, which is output to the condenser. The high-temperature and high-pressure gas enters the condenser for circulation, and the released heat is blown to the drying chamber 101 by the blower 8 Inside, the gas turns into a liquid and is output from the liquid outlet of the condenser. The high-pressure gas is not completely consumed after passing through the condenser, and the unconsumed high-pressure gas becomes a medium-pressure gas after passing through the condenser. The liquid separator and the liquid separator separate the medium-pressure gas attached to the liquid. The medium-pressure gas enters the gas-liquid separator to remove the medium-pressure gas again, and then depressurizes through the capillary. After depressurization, part of the gas will become Liquid, the liquid mixed with low-pressure gas enters the separator, separates the low-pressure gas and returns it to the evaporator to continue circulation. The drying chamber 101 is also equipped with a dehumidification device for removing the moisture in the drying chamber 101. When the system detects that the humidity in the drying chamber 101 exceeds the set value, the dehumidification sub-motor 14 and the main dehumidification motor 15 are started respectively, and the control system controls the negative pressure valve 13 to open the sealing cover 1002, and the drying chamber 101 and the dehumidification air duct are opened. 103, the dehumidification motor 14 pumps the moisture in the drying chamber 101 into the dehumidification air duct 103, the negative pressure of the dehumidification main motor 15 is greater than the negative pressure of the dehumidification motor 14, and the dehumidification main motor 15 will The moisture in the dehumidification air duct 103 is discharged into the outside air, and the control system sets the dehumidification time. When the set dehumidification time is reached, the system automatically closes the sealing cover 1002, the dehumidification sub-motor 14 and the dehumidification main motor 15; the system has With the advantages of high efficiency, energy saving and environmental protection, the evaporator continuously exchanges heat with the outside air to achieve the cooling effect and turn the low-pressure gas into a low-pressure liquid for output.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the Within the scope of protection of the present invention.

Claims (10)

1. The belt type medicinal material dryer is characterized in that it includes: Casing (1), described casing (1) is provided with the clapboard (105) that vertically places, and described clapboard (105) divides the inner space of casing (1) into drying chamber (101) and The air return chamber (102) is placed on the two sides of the inner partition (105) of the drying chamber (101) and is respectively provided with a first condenser (5), between the two first condensers (5). There are two second condensers (6); Each first condenser (5) and each second condenser (6) are respectively fixed with a plurality of blowers (8), and the blowers (8) are placed in the return air chamber (102), and each The air outlet of hair dryer (8) is respectively towards drying chamber (101); The lower part of the partition (105) in the return air chamber (102) is respectively fixed with a plurality of suction fans (7) close to the first condenser (5) and the second condenser (6), and the top of the suction fans (7) One end of the air suction port passes through the partition (105) towards the drying chamber (101); A dehumidification air duct (103) is provided above the drying chamber (101), and a plurality of moisture outlets (104) are opened on the top of the drying chamber (101), and the drying chamber (101) passes through the moisture outlet. (104) is communicated with dehumidification air duct (103); Dehumidification covers (10) are fixedly connected to the dehumidification outlets (104) in the drying chamber (101), and the dehumidification ports of each dehumidification cover (10) are respectively facing into the drying chamber (101), and each dehumidification cover ( The dehumidification ports of 10) are respectively rotated and connected with sealing covers (1002), and each dehumidification cover (10) is respectively fixed with negative pressure valves (13), and the negative pressure valves (13) are connected with the sealing covers (1002) , and the negative pressure valve (13) can drive the sealing cover (1002) to open and close; Air deflectors (11) are respectively fixed on both sides of each dehumidification outlet (104) in the dehumidification air duct (103), and the two air deflectors (11) are in the shape of bell mouths, and the air deflectors (11 ) is affixed to the bottom surface of the dehumidification air duct (103), and the other side of the air deflector (11) is affixed with an air deflector curved plate (12); A dehumidification sub-motor (14) is provided above each moisture outlet (104) in the dehumidification air duct (103), and a dehumidification main motor (15) is provided at one end of the dehumidification air duct (103). 2. The belt-type medicinal material dryer according to claim 1, characterized in that: the drying chamber (101) is provided with a plurality of mesh belts arranged up and down, and the movement directions between adjacent mesh belts are opposite , the end of each mesh belt extends a certain distance from the upper mesh belt along its material moving direction for receiving materials, and the head end of the uppermost mesh belt extends out of the box (1) to form a material receiving end, so The bottom of one side of the casing (1) has a discharge port (106), and the end of the bottom layer of mesh belt is close to the discharge port (106) to form the receiving end, and the side wall and the dividing plate in the drying chamber (101) Corresponding positions on (105) are respectively provided with the supporting plate (17) that number of layers is identical with mesh belt, and supporting plate (17) is used for supporting mesh belt respectively. 3. The belt type medicinal material dryer according to claim 2, characterized in that: each layer of mesh belt is driven by a driving motor (9). 4. The belt-type medicinal material dryer according to claim 1, characterized in that: a feeding device (16) is provided outside the box (1), and the feeding device includes a frame (161), a hopper (162) and the conveying mesh belt (163) that is inclined to set, and described hopper (162) and described conveying mesh belt (163) are fixedly connected on the frame (161) respectively, and one side of described hopper (162) bottom A discharge port (1621) is provided, and the end of one end of the conveying mesh belt (163) is placed below the discharge port (1621); A plurality of mutually parallel material partitions (165) are fixed at equal intervals on the conveying mesh belt (163), and the material separating plates (165) are perpendicular to the conveying direction of the conveying mesh belt (163), close to the hopper (162 ) is provided with a distributor (166) on the frame (161), and the distributor (166) is placed above the conveyor belt (163), and the distributor (166) and the conveyor belt (163) are The spacing can be adjusted; Described hopper (162) is provided with pusher (167), and described pusher (167) is connected with pusher motor (168), and described pusher motor (168) drives pusher (167) to rotate push material, and pusher (167) Rotate counterclockwise. 5. The belt-type medicinal material dryer according to claim 4, characterized in that: the distributor (166) includes a distribution board (1661), and lifting brackets ( 1662), the frame (161) is fixedly connected with a fixed bracket (1663) matching the lifting bracket (1662), the fixing bracket (1663) is sleeved on the lifting bracket (1662), and the lifting bracket (1662 ) can move up and down relative to the fixed bracket (1663), and the fixed bracket (1663) is provided with a locking piece (1664) capable of fixing the position of the lifting bracket (1662). 6. The belt-type medicinal material dryer according to claim 4, characterized in that: the rotation of the conveying mesh belt (163) is driven by a conveying mechanism, and the conveying mechanism includes two sets of conveying gears (1610), two sets of A transmission chain (164) is connected between the transmission gears (1610), a driven wheel (1613) is coaxially connected to the transmission gear (1610) close to the hopper (162), and a transmission motor is fixedly connected to the frame (161). (169), the output shaft of the transmission motor (169) is connected with a driving wheel (1611), and a driving chain (1612) is connected between the driving wheel (1611) and the driven wheel (1613). 7. The belt-type medicinal material dryer according to claim 4, characterized in that: the pusher (167) includes a push roller (1671) and a push plate (1672), and the push roller (1671) has A plurality of pushing plates (1672) are distributed in a staggered manner along the axial direction. 8. The belt-type medicinal material dryer according to claim 1, characterized in that: the air guide plate (11) forms an included angle of 40°-80° with the bottom surface of the dehumidification air duct (103). 9. The belt-type medicinal material dryer according to claim 1, characterized in that: the wind guiding curved plate (12) is arc-shaped. 10. The belt-type medicinal material dryer according to claim 1, characterized in that: the dehumidification ports of each dehumidification cover (10) are fixedly connected with supports (1001) capable of preventing the sealing cover (1002) from falling.