Traditional Chinese medicine belt dryer convenient to clean

By introducing components such as water jet pipes, brush drums and curved scrapers into the belt dryer, the problems of inconvenience in cleaning equipment and the impact of water drops on the drying effect are solved, and automatic cleaning and more efficient drying process are achieved.

CN222279184UActive Publication Date: 2024-12-31HENAN HONGRI KANGRENTANG PHARM CO LTD
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Patent Information

Application Number
CN202323555608.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2024-12-31
Estimated Expiration
2033-12-26

AI Technical Summary

Technical Problem

The existing belt dryers are inconvenient to operate during the cleaning process, resulting in wasted time and manpower, and the drying effect is affected by water drops.

Method used

Designed to have a multi-set transverse conveyor belt, discharge pipe, feed pipe, drainage tank and cleaning unit built into the belt dryer housing, including water spray pipe, brush drum, flow guide fan blade and arc-shaped scraper for Automatically clean the conveyor belt and inner wall water droplets to improve cleaning efficiency and avoid water dripping.

Benefits of technology

It realizes efficient cleaning of conveyor belts without manually opening the equipment, improves usage efficiency, and effectively avoids water droplets affecting the drying effect, simplifying the cleaning process inside the equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a traditional Chinese medicine belt dryer convenient to clean. The problem that an existing belt dryer is inconvenient to clean is effectively solved. Which comprises a belt dryer shell, a raw material tank arranged on one side of the belt dryer shell and a material receiving barrel arranged on the other side of the belt dryer shell, and is characterized in that a plurality of groups of transversely arranged conveying belts are arranged in the belt dryer shell, the conveying belts are arranged up and down, discharging pipes are arranged above one sides of the conveying belts respectively, and the discharging pipes are connected with the conveying belts. A vertical conveying pipe is arranged on one side in the belt dryer shell; the conveying belt cleaning device is ingenious in structure and convenient to use, when a conveying belt needs to be cleaned, water flow is sprayed and brushed on the conveying belt through the water spraying pipe through the arrangement of the water spraying pipe, the brush barrel, the flow guide fan blades and the like, in the process that the water flow flows from the water inlet water spraying pipe, the flow guide fan blades are driven by the water flow to rotate, and the brush barrel rotates in the rotating groove; and the cleaning effect on the conveying belt is enhanced.
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Description

Technical Field

[0001] The utility model relates to the technical field of traditional Chinese medicine belt drying machines, in particular to a traditional Chinese medicine belt drying machine which is easy to clean. Background Art

[0002] Belt dryer is a continuous drying equipment for batch production. It is used for drying flake, strip and granular materials with good air permeability. It is particularly suitable for dehydrated vegetables, catalysts, Chinese herbal medicine pieces and other materials with high moisture content but high material temperature. This series of dryers has the advantages of fast drying speed, high evaporation intensity and good product quality. For dehydrated filter cake-like paste materials, they need to be granulated or made into strips before drying.

[0003] Under vacuum conditions, liquid materials are continuously spread on the slowly moving crawler belt to form a thin coating; the crawler belt conveys the materials into the heating section, where the materials evaporate due to heat and lose moisture, and then enter the cooling section to cool the materials and make them brittle. Finally, they reach the terminal and are automatically discharged through the isolation unloading bin, where they are crushed into powder to obtain a dry solid product.

[0004] At present, the existing belt dryer has been developed very maturely. After drying a batch of Chinese medicinal materials, when drying the next batch of Chinese medicinal materials, it is usually necessary to clean the inside of the belt dryer to avoid mixing different batches of Chinese medicinal materials together and affecting the effect of the medicinal materials. As a result, the following problems still exist during cleaning and use:

[0005] 1. The existing belt dryer is not convenient for cleaning the internal conveyor belt due to its large overall structure. Workers are often required to open the side door of the belt dryer for cleaning, which wastes a lot of time and manpower.

[0006] 2. When drying, water droplets may drip from the top of the inner wall of the belt dryer, resulting in poor drying effect of some Chinese medicinal materials. Utility Model Content

[0007] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a traditional Chinese medicine belt dryer that is easy to clean, which effectively solves the problems mentioned in the background technology.

[0008] The technical solution is as follows: the utility model comprises a belt dryer housing, a raw material tank disposed on one side of the belt dryer housing, and a material receiving drum disposed on the other side of the belt dryer housing, characterized in that a plurality of groups of horizontal conveyor belts are arranged inside the belt dryer housing, the plurality of groups of conveyor belts are arranged up and down, and discharge pipes are respectively arranged above one side of the plurality of groups of conveyor belts, a vertical material delivery pipe is arranged on one side of the belt dryer housing, the material delivery pipe penetrates the belt dryer housing and is fixedly connected to the raw material tank, a feed pump is arranged on the material delivery pipe, a drainage groove is provided at the bottom of the inner wall of the belt dryer housing, a drainage pipe is provided at the bottom of the belt dryer housing, the drainage pipe is connected with the drainage groove, a spiral discharge pipe is arranged on the lower side of one side of the plurality of groups of conveyor belts, a material guide plate is arranged above the spiral discharge pipe, and a cleaning unit is arranged on one side of the plurality of groups of conveyor belts;

[0009] The cleaning unit comprises a scraper plate, a water spray pipe is arranged below the scraper plate, a brush cylinder is rotatably connected to the outer surface of the water spray pipe, a brush is arranged on the outer surface of the brush cylinder, the scraper plate is fixedly connected to the water spray pipe, a rotating groove is arranged between the water spray pipe and the scraper plate, the brush cylinder moves inside the rotating groove, a water inlet is arranged on one side of the water spray pipe, a guide blade is arranged inside the water inlet, a rotating shaft is arranged inside the water inlet, one end of the rotating shaft is fixedly connected to the guide blade, a fixing block is arranged in the middle of the rotating shaft, one end of the fixing block is fixed to the inner wall of the water spray pipe, a steering bevel gear set is arranged at the other end of the rotating shaft, one of the bevel gears of the steering bevel gear set is fixed with a vertical rod, a connecting disk is provided on one side of the bottom of the scraper plate, one end of the vertical rod is rotatably connected to the connecting disk, a transmission bevel gear located outside the water spray pipe is fixed on the vertical rod, a bevel gear ring is fixed at one end of the brush cylinder, and the transmission bevel gear is meshed with the bevel gear ring.

[0010] Preferably, a wiper assembly is provided on the top of the inner wall of the belt dryer housing, and the wiper assembly reciprocates inside the belt dryer housing.

[0011] Preferably, the wiper assembly includes an arc-shaped scraper located at the top of the inner wall of the belt dryer housing, an arc-shaped water collecting tray is arranged below the arc-shaped scraper, connecting rings are arranged at both ends of the water collecting tray, a connecting rod is arranged between the arc-shaped scraper and the water collecting tray, a sliding rod and a reciprocating screw are respectively arranged on both sides of the inner wall of the belt dryer housing, the two connecting rings are respectively sleeved on the sliding rod and the reciprocating screw, and an arc-shaped absorbent felt is fixed to one side of the top of the inner wall of the belt dryer housing.

[0012] Preferably, transmission shafts are respectively provided at both ends of the multiple groups of conveyor belts, a transmission rod is fixed to one of the multiple transmission shafts, a transmission motor is fixed to the outer side surface of the belt dryer housing, the transmission rod penetrates the belt dryer housing and is fixedly connected to the transmission motor, a support rod is rotatably connected to the inner wall of the belt dryer housing, a first bevel gear is fixed to one end of the support rod, a pulley is provided between the support rod and the transmission rod, a second bevel gear is fixed to one end of the reciprocating screw, and the second bevel gear is meshed with the first bevel gear.

[0013] Preferably, the outer side of the water spray pipe is provided with a plurality of filter holes, the interior of the brush tube is provided with a plurality of water spray grooves, the outer surface of the water spray pipe is fixed with a plurality of fixing rings, and the inner wall of the brush tube rotates on the fixing rings.

[0014] Preferably, heating plates and cooling plates are provided under the plurality of groups of conveyor belts, and the number of the heating plates is greater than the number of the cooling plates.

[0015] Preferably, a spiral transmission motor is fixed to the outer side of the belt dryer housing, and the spiral transmission motor is connected to the spiral feeding pipe.

[0016] Preferably, a water tank is provided on one side of the belt dryer housing, a water inlet pipe is provided inside the belt dryer housing, a plurality of the cleaning units are respectively connected to the water inlet pipes, the water inlet pipes penetrate the belt dryer housing and are connected to the water tank, a water pump is provided on the water inlet pipe, a connecting column is fixed at one end of the water spray pipe, and the connecting column is fixed on the inner wall of the belt dryer housing.

[0017] Preferably, an exhaust pipe is provided on the top of the belt dryer housing, and an exhaust fan is fixed to one end of the exhaust pipe.

[0018] Preferably, an electric valve is provided on the drain pipe, and a waste water bucket is provided below the drain pipe.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. Through the settings of water spray pipe, brush cylinder and guide blades, when the conveyor belt needs to be cleaned, water flows through the water spray pipe to spray the conveyor belt. In the process of water flowing from the water inlet to the water pipe, the guide blade rotates driven by the water flow. At this time, the rotation of the shaft is transmitted through the steering bevel gear set, the transmission bevel gear and the bevel gear ring, and the brush cylinder rotates inside the rotating groove, which enhances the cleaning effect of the conveyor belt. There is no need to open the equipment for manual cleaning, which improves the use efficiency.

[0021] 2. The water droplets inside the belt dryer housing are cleaned by means of the above-mentioned arc scraper, water receiving tray and reciprocating screw. During the cleaning process of the arc scraper, the dripping water droplets fall onto the water receiving tray and then gather toward the bottom of the belt dryer housing under the guidance of the water receiving tray, thereby preventing the water droplets from dripping onto the conveyor belt and affecting the drying effect of the material.

[0022] 3. Through the settings of drainage trough, drainage pipe and waste water bucket, when the condensed water droplets generated inside the belt dryer casing gather at the bottom of the inner wall of the belt dryer casing, the drainage trough can better gather the waste water to the drainage pipe, and then open the electric valve to discharge the waste water inside into the waste water bucket, so as to facilitate the collection of the waste water inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereogram of the utility model.

[0024] Figure 2 It is a cross-sectional view of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the cleaning unit in the utility model.

[0026] Figure 4 It is a structural schematic diagram of the rotating shaft in the utility model.

[0027] Figure 5 It is a cross-sectional view from another angle in the utility model.

[0028] Figure 6 It is a structural schematic diagram of the wiper assembly in the utility model.

[0029] Figure 7 This utility model Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 8 It is a structural schematic diagram of the water spray pipe in the utility model.

[0031] Fig. 9 It is a structural schematic diagram of the brush barrel in the utility model.

[0032] Fig.10 It is a structural schematic diagram of the water inlet pipe in the utility model.

[0033] Explanation of the symbols in the schematic diagram:

[0034] 10. Belt dryer housing; 101. Guide plate; 102. Drain trough; 103. Drain pipe; 11. Raw material tank; 12. Feed pump; 13. Waste water bucket; 14. Receiver; 15. Feed pipe; 151. Discharge pipe; 16. Water tank; 17. Spiral feed pipe; 171. Spiral drive motor; 20. Conveyor belt; 21. Heating plate; 22. Cooling plate; 23. Drive shaft; 30. Scraper plate; 301. Connecting plate; 302. Rotating trough; 31. Brush cylinder; 311. Conical gear ring; 312. Water spray Groove; 32, water spray pipe; 321, connecting column; 322, water inlet; 323, filter hole; 324, fixing ring; 33, guide fan blade; 331, transmission bevel gear; 332, vertical rod; 34, fixing block; 35, rotating shaft; 36, steering bevel gear set; 40, water receiving tray; 401, arc scraper; 402, connecting rod; 403, connecting ring; 41, water-absorbing felt; 42, reciprocating screw; 421, second bevel gear; 422, first bevel gear; 423, pulley; 50, water inlet pipe; 51, water pump. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Depend on Figure 1 to Figure 2The belt dryer comprises a belt dryer housing 10, a raw material tank 11 disposed on one side of the belt dryer housing 10, and a collecting drum 14 disposed on the other side of the belt dryer housing 10. The raw material tank 11 is used to place the Chinese medicinal materials to be dried, and the collecting drum 14 is used to collect the Chinese medicinal materials that have been dried in the belt dryer housing 10. The belt dryer housing 10 is provided with a plurality of groups of horizontal conveyor belts 20 arranged up and down. Through the arrangement of the conveyor belts 20, when the Chinese medicinal materials to be dried enter the belt dryer housing 10, they are conveyed on the conveyor belts 20. 0, discharge pipes 151 are respectively arranged above one side of the plurality of conveyor belts 20, a vertical conveying pipe 15 is arranged on one side of the belt dryer housing 10, the conveying pipe 15 passes through the belt dryer housing 10 and is fixedly connected to the raw material tank 11, a feed pump 12 is arranged on the conveying pipe 15, and through the feed pump 12, the conveying pipe 15 and the discharge pipe 151, when in use, the feed pump 12 is turned on, and the medicinal materials in the raw material tank 11 are passed through the conveying pipe 15 and the discharge pipe 151, and finally laid on the conveyor belt 20, and the belt dryer housing 1 A drainage groove 102 is provided at the bottom of the inner wall of the belt dryer housing 10, and a drainage pipe 103 is provided at the bottom of the belt dryer housing 10. The drainage pipe 103 is connected with the drainage groove 102, and an electric valve is provided on the drainage pipe 103. A waste water bucket 13 is provided below the drainage pipe 103. Through the drainage groove 102, the drainage pipe 103 and the waste water bucket 13, when the condensed water droplets generated inside the belt dryer housing 10 gather at the bottom of the inner wall of the belt dryer housing 10, the drainage groove 102 can better gather the waste water to the drainage pipe 103, and then open the electric valve. , and the waste water inside it is discharged into the waste water bucket 13. A spiral feeding pipe 17 is arranged on the lower side of one side of the multiple groups of conveyor belts 20, and a guide plate 101 is arranged above the spiral feeding pipe 17. Through the spiral feeding pipe 17 and the guide plate 101, when the medicinal materials on the conveyor belt 20 are dried and cooled, they are formed into a cake shape, and finally enter the inside of the spiral feeding pipe 17 through the guide plate 101 and are transported to the inside of the receiving cylinder 14. A cleaning unit is arranged on one side of the multiple groups of conveyor belts 20 for cleaning the conveyor belts 20 in the belt dryer housing 10.

[0037] refer to Figure 3 , Figure 4As shown, the cleaning unit includes a scraper plate 30. When the conveyor belt 20 passes through the scraper plate 30, the material that may be adhered to the surface of the conveyor belt 20 can be scraped off. A water spray pipe 32 is arranged below the scraper plate 30 for guiding external water to clean the conveyor belt 20. The outer surface of the water spray pipe 32 is rotatably connected to a brush cylinder 31. The outer surface of the brush cylinder 31 is provided with a brush for cleaning the conveyor belt 20. The scraper plate 30 is fixedly connected to the water spray pipe 32. The water spray pipe 32 is connected to the scraper plate 30. 0, a rotating groove 302 is opened between the brush cylinder 31 and the rotating groove 302, a water inlet 322 is arranged on one side of the water spray pipe 32, a guide blade 33 is arranged inside the water inlet 322, a rotating shaft 35 is arranged inside the water inlet 322, one end of the rotating shaft 35 is fixedly connected to the guide blade 33, a fixing ring 324 is arranged in the middle of the rotating shaft 35 for supporting the rotating shaft 35, one end of the fixing block 34 is fixed to the inner wall of the water spray pipe 32, and the other end of the rotating shaft 35 is fixed to the inner wall of the water spray pipe 32. A steering bevel gear set 36 is arranged, one of the bevel gears of the steering bevel gear set 36 is fixed with a vertical rod 332, a connection plate 301 is provided on one side of the bottom of the scraper plate 30, one end of the vertical rod 332 is rotatably connected to the connection plate 301, a transmission bevel gear 331 located outside the water spray pipe 32 is fixed on the vertical rod 332, a bevel gear ring 311 is fixed at one end of the brush cylinder 31, the transmission bevel gear 331 is meshed with the bevel gear ring 311, and the water spray pipe 32, the brush cylinder 31 and the guide blade 33 are connected. It is configured that when the conveyor belt 20 needs to be cleaned, water flows through the water spray pipe 32 to spray the conveyor belt 20. In the process of water flowing from the water inlet 322 to the water spray pipe 32, the guide blade 33 rotates driven by the water flow. At this time, the rotation of the rotating shaft 35 is transmitted through the steering bevel gear set 36, the transmission bevel gear 331 and the bevel gear ring 311, and the brush cylinder 31 rotates inside the rotating groove 302. It should be noted that the rotation direction of the brush cylinder 31 is opposite to the travel direction of the transmission.

[0038] refer to Figures 5 to 7As shown, a wiper assembly is provided at the top of the inner wall of the belt dryer housing 10, which is used to scrape off the water drops on the top of the inner wall of the belt dryer housing 10 and guide the water drops to slide to both sides thereof to prevent the dripping water drops from affecting the drying of the medicinal materials. The wiper assembly reciprocates inside the belt dryer housing 10, and the wiper assembly includes an arc-shaped scraper 401 located at the top of the inner wall of the belt dryer housing 10, and an arc-shaped water receiving tray 40 is provided below the arc-shaped scraper 401. It should be noted that the projected length of the arc-shaped scraper 401 and the arc-shaped water receiving tray 40 on the conveyor belt 20 is greater than the width of the conveyor belt 20. Both ends of the water tray 40 are provided with connecting rings 403, a connecting rod 402 is provided between the arc scraper 401 and the water tray 40, and sliding rods and reciprocating screws 42 are provided on both sides of the inner wall of the belt dryer housing 10, respectively. The two connecting rings 403 are respectively sleeved on the sliding rods and the reciprocating screws 42, and an arc-shaped water-absorbing felt 41 is fixed on one side of the top of the inner wall of the belt dryer housing 10, which is used to absorb water droplets that may exist under the water tray 40. The water tray 40 will absorb water droplets each time it reciprocates, so as to prevent water droplets from forming under the water tray 40 and dripping onto the conveyor belt 20 below. , transmission shafts 23 are respectively provided at both ends of the multiple groups of conveyor belts 20, and a transmission rod is fixed to one of the multiple transmission shafts 23. A transmission motor is fixed to the outer side of the belt dryer housing 10, and the transmission rod penetrates the belt dryer housing 10 and is fixedly connected to the transmission motor. A support rod is rotatably connected to the inner wall of the belt dryer housing 10, and a first bevel gear 422 is fixed to one end of the support rod, and a pulley 423 is provided between the support rod and the transmission rod. A second bevel gear 421 is fixed to one end of the reciprocating screw 42, and the second bevel gear 421 is meshed with the first bevel gear 422. Through the above-mentioned arc The scraper 401, the water receiving tray 40 and the reciprocating screw 42 are arranged. When the conveyor belt 20 rotates driven by the transmission motor, the reciprocating screw 42 rotates accordingly through the above-mentioned pulley 423, the first bevel gear 422 and the second bevel gear 421, and the arc scraper 401 and the water receiving tray 40 reciprocate under the rotation of the reciprocating screw 42 to clean the water droplets inside the belt dryer housing 10. During the cleaning process of the arc scraper 401, the dripping water droplets fall onto the water receiving tray 40, and then gather to the bottom of the belt dryer housing 10 under the guidance of the water receiving tray 40.

[0039] refer to Figure 5 , Figure 8 and Fig. 9As shown, a heating plate 21 and a cooling plate 22 are arranged under the multiple groups of conveyor belts 20, and the number of the heating plates 21 is greater than the number of the cooling plates 22. The above-mentioned heating plate 21 is used to heat and dry the material, and the cooling plate 22 is located at the end of the conveyor belt 20 to cool the dried material. A spiral transmission motor 171 is fixed on the outer side of the belt dryer housing 10, and the spiral transmission motor 171 is connected to the spiral feed pipe 17. The spiral feed pipe 17 is provided with power through the setting of the spiral transmission motor 171. The reason for selecting the spiral conveyor here is also to avoid the vacuum environment inside the belt dryer housing 10 from being destroyed. A plurality of filter holes 323 are arranged on the outer side of the water spray pipe 32, and a plurality of water spray grooves 312 are opened inside the brush cylinder 31. A plurality of fixing rings 324 are fixed on the outer surface of the water spray pipe 32, and the inner wall of the brush cylinder 31 rotates on the fixing ring 324. When the brush cylinder 31 is rotating, water flows out from the water spray groove 312 and cleans the conveyor belt 20.

[0040] refer to Figure 5 and Fig.10 As shown, a water tank 16 is provided on one side of the belt dryer housing 10 for providing a cleaning water source, a water inlet pipe 50 is provided inside the belt dryer housing 10, and a plurality of cleaning units are respectively connected to the water inlet pipe 50, the water inlet pipe 50 passes through the belt dryer housing 10 and is connected to the water tank 16, a water pump 51 is provided on the water inlet pipe 50, a connecting column 321 is fixed at one end of the water spray pipe 32, and the connecting column 321 is fixed on the inner wall of the belt dryer housing 10, an exhaust pipe is provided on the top of the belt dryer housing 10, an exhaust fan is fixed at one end of the exhaust pipe, and an observation window is provided at one end of the belt dryer housing 10, the exhaust pipe and the exhaust fan are used to extract the mist generated inside, so as to facilitate the observation of the internal working process through the observation window.

[0041] When the utility model is used:

[0042] First, the heating plate 21 and the cooling plate 22 are turned on in advance, and then the feed pump 12 is turned on to spread the medicinal materials in the raw material tank 11 on the conveyor belt 20 through the inside of the feed pipe 15 and the discharge pipe 151. At the same time, the transmission motor is turned on to start the conveyor belt 20.

[0043] Then, during the operation of the conveyor belt 20, the reciprocating screw 42 rotates under the transmission of the pulley 423, the first bevel gear 422, the second bevel gear 421, etc., and the wiper assembly starts to reciprocate at the top of the inner wall of the belt dryer housing 10. During each reciprocating movement, the absorbent felt 41 cleans the water droplets that may be generated on the back of the water receiving tray 40, and the arc-shaped scraper 401 scrapes off the water droplets generated inside the device during the reciprocating movement and guides them to both sides through the water receiving tray 40;

[0044] Secondly, the dried material is conveyed to the outside by the guide plate 101 and the spiral feed pipe 17, and enters the next step;

[0045] Finally, when it is necessary to clean the conveyor belt 20, etc., turn on the water pump 51, and the water inside the water tank 16 enters the water inlet pipe 50 and the water spray pipe 32 driven by the water pump 51 to clean the conveyor belt 20, and the guide blades 33 also rotate the brush cylinder 31 under the conduction of the steering bevel gear set 36, the transmission bevel gear 331 and the bevel gear ring 311, thereby enhancing the cleaning effect of the conveyor belt 20.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traditional Chinese medicine belt dryer that is easy to clean, comprising a belt dryer housing (10), a raw material tank (11) disposed on one side of the belt dryer housing (10), and a material receiving cylinder (14) disposed on the other side of the belt dryer housing (10), characterized in that: A plurality of groups of horizontal conveyor belts (20) are arranged inside the belt dryer housing (10), and the plurality of groups of conveyor belts (20) are arranged vertically. A discharge pipe (151) is respectively arranged above one side of the plurality of groups of conveyor belts (20). A vertical feed pipe (15) is arranged on one side of the belt dryer housing (10). The feed pipe (15) passes through the belt dryer housing (10) and is fixedly connected to the raw material tank (11). A feed pump (151) is arranged on the feed pipe (15). 2) A drainage groove (102) is provided at the bottom of the inner wall of the belt dryer housing (10), a drainage pipe (103) is provided at the bottom of the belt dryer housing (10), the drainage pipe (103) is connected with the drainage groove (102), a spiral feed pipe (17) is provided at the lower side of one side of the plurality of groups of conveyor belts (20), a guide plate (101) is provided above the spiral feed pipe (17), and a cleaning unit is provided on one side of the plurality of groups of conveyor belts (20); The cleaning unit comprises a scraper plate (30), a water spray pipe (32) is arranged below the scraper plate (30), the outer surface of the water spray pipe (32) is rotatably connected to a brush cylinder (31), the outer surface of the brush cylinder (31) is provided with a brush, the scraper plate (30) is fixedly connected to the water spray pipe (32), a rotation groove (302) is provided between the water spray pipe (32) and the scraper plate (30), the brush cylinder (31) moves inside the rotation groove (302), a water inlet (322) is arranged on one side of the water spray pipe (32), a guide blade (33) is arranged inside the water inlet (322), a rotating shaft (35) is arranged inside the water inlet (322), one end of the rotating shaft (35) is connected to the guide blade ( The rotating shaft (35) is fixedly connected to the water spray pipe (33), a fixed block (34) is arranged in the middle of the rotating shaft (35), one end of the fixed block (34) is fixed on the inner wall of the water spray pipe (32), the other end of the rotating shaft (35) is arranged with a steering bevel gear set (36), one of the bevel gears of the steering bevel gear set (36) is fixed with a vertical rod (332), a connecting disk (301) is provided on one side of the bottom of the scraper plate (30), one end of the vertical rod (332) is rotatably connected to the connecting disk (301), a transmission bevel gear (331) located outside the water spray pipe (32) is fixed on the vertical rod (332), a bevel gear ring (311) is fixed on one end of the brush cylinder (31), and the transmission bevel gear (331) is meshed with the bevel gear ring (311).

2. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: A wiper assembly is provided on the top of the inner wall of the belt dryer housing (10), and the wiper assembly reciprocates inside the belt dryer housing (10).

3. The easy-to-clean Chinese medicine belt dryer according to claim 2, characterized in that: The water scraping assembly comprises an arc-shaped scraper (401) located at the top of the inner wall of the belt dryer housing (10); an arc-shaped water receiving tray (40) is arranged below the arc-shaped scraper (401); connecting rings (403) are arranged at both ends of the water receiving tray (40); a connecting rod (402) is arranged between the arc-shaped scraper (401) and the water receiving tray (40); a sliding rod and a reciprocating screw (42) are respectively arranged on both sides of the inner wall of the belt dryer housing (10); two connecting rings (403) are respectively sleeved on the sliding rod and the reciprocating screw (42); and an arc-shaped water-absorbing felt (41) is fixed to one side of the top of the inner wall of the belt dryer housing (10).

4. The easy-to-clean Chinese medicine belt dryer according to claim 3, characterized in that: Transmission shafts (23) are respectively arranged at both ends of the plurality of groups of conveyor belts (20), a transmission rod is fixed to one of the plurality of transmission shafts (23), a transmission motor is fixed to the outer side surface of the belt dryer housing (10), the transmission rod penetrates the belt dryer housing (10) and is fixedly connected to the transmission motor, a support rod is rotatably connected to the inner wall of the belt dryer housing (10), a first bevel gear (422) is fixed to one end of the support rod, a pulley (423) is arranged between the support rod and the transmission rod, a second bevel gear (421) is fixed to one end of the reciprocating screw (42), and the second bevel gear (421) is meshed with the first bevel gear (422).

5. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: The outer side surface of the water spray pipe (32) is provided with a plurality of filter holes (323), the interior of the brush cylinder (31) is provided with a plurality of water spray grooves (312), the outer surface of the water spray pipe (32) is fixed with a plurality of fixing rings (324), and the inner wall of the brush cylinder (31) rotates on the fixing rings (324).

6. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: Heating plates (21) and cooling plates (22) are arranged below the plurality of groups of conveyor belts (20), and the number of the heating plates (21) is greater than the number of the cooling plates (22).

7. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: A spiral transmission motor (171) is fixed to the outer side surface of the belt dryer housing (10), and the spiral transmission motor (171) is connected to the spiral feed pipe (17).

8. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: A water tank (16) is provided on one side of the belt dryer housing (10), a water inlet pipe (50) is provided inside the belt dryer housing (10), a plurality of cleaning units are respectively connected to the water inlet pipe (50), the water inlet pipe (50) passes through the belt dryer housing (10) and is connected to the water tank (16), a water pump (51) is provided on the water inlet pipe (50), and a connecting column (321) is fixed to one end of the water spray pipe (32), and the connecting column (321) is fixed to the inner wall of the belt dryer housing (10).

9. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: An exhaust pipe is arranged on the top of the belt dryer housing (10), and an exhaust fan is fixed at one end of the exhaust pipe.

10. The easy-to-clean Chinese medicine belt dryer according to claim 1, characterized in that: An electric valve is provided on the drainage pipe (103), and a waste water bucket (13) is provided below the drainage pipe (103).