CN117663707A - Solar heat pump combined traditional Chinese medicinal material conduction type dryer - Google Patents

Abstract

The utility model relates to the technical field of traditional Chinese medicine drying, in particular to a solar heat pump combined traditional Chinese medicine conduction type dryer which comprises a solar water heater, a heat pump, a heat preservation water tank and a rake dryer main body; the solar water heater and the heat pump are used for heating water in the heat preservation water tank; the hot water in the heat preservation water tank can circulate between the heat preservation water tank and the shell and the liner of the rake dryer main body; the transmission shaft of the rake dryer main body is of a hollow tubular structure, and hot water in the heat preservation water tank can circulate between the heat preservation water tank and the transmission shaft. According to the utility model, the three heat transfer surfaces alternately dry the Chinese medicinal materials to be dried, so that the temperatures of the three heat transfer surfaces are kept consistent when the Chinese medicinal materials are contacted with the three heat transfer surfaces, the condition of insufficient temperature in a certain area on the heat transfer surfaces is avoided, the Chinese medicinal materials are uniformly dried, and the actual drying quality is improved.

Description

A solar heat pump combined with conductive dryer for traditional Chinese medicinal materials

Technical field

The invention relates to the technical field of drying Chinese medicinal materials, specifically a solar heat pump combined with a conductive dryer for Chinese medicinal materials.

Background technique

The drying method of Chinese herbal medicines usually adopts the conductive method, that is, using thermal conductive materials to transfer heat to the Chinese herbal medicines to achieve drying. The benefits of conductive drying are:

Maintain the active ingredients of medicinal materials: Chinese medicinal materials are rich in active ingredients, such as volatile oils, alkaloids, etc. Conduction dryers transfer heat to pharmaceutical ingredients through direct contact with heated surfaces, allowing them to quickly dehydrate and maintain the integrity of the active ingredients. Compared with other drying methods (such as hot air drying), conductive dryers can better control heat transfer and reduce the loss of active ingredients.

Improve drying efficiency: Chinese medicinal materials usually have a high moisture content, and the traditional natural drying method takes a long time to achieve the desired drying level. The conduction dryer can provide a stable and efficient heat source, accelerate the dehydration process of medicinal materials, shorten the drying time, and improve production efficiency.

Ensure drying quality and uniformity: The conductive dryer can achieve uniform heating of medicinal materials, avoiding quality degradation or quality differences in some medicinal materials caused by uneven heating. By controlling the heating temperature and time, the drying degree of the medicinal materials can be accurately controlled to ensure stable quality of the dried medicinal materials.

Hygiene and environmental protection: Conductive dryers usually adopt a closed design, which reduces the contamination of medicinal materials by external pollutants and ensures the hygiene and purity of medicinal materials. At the same time, the conductive dryer does not require additional air circulation during the drying process, reducing energy consumption and exhaust gas emissions, and meets environmental protection requirements.

The rake dryer is a conductive drying equipment. For example, the Chinese utility model patent with announcement number CN214620436U discloses a rake dryer. The rake dryer includes a base; a support base, which is fixedly installed on the top of the base; and a body shell, which is arranged on the base, and has openings on both sides of the inner walls of the body shell. There are rotation holes, and the inner walls of the two rotation holes are inlaid with sealed bearings; a feeding mechanism, the feeding mechanism is arranged on the support seat; a bracket, the bracket is fixedly installed on the base, and the bracket is A horizontal plate is fixedly installed, and a mounting hole is provided on the top of the bracket. The rake dryer provided by this solution has the advantages of improving drying efficiency, saving time and effort, and being more convenient.

The technical problem of the rake dryer provided by the above patented technical solution is that although the rake teeth can stir the material, in actual use, there is still a problem that the material is easy to accumulate, resulting in the contact area and contact time between the material and the hot surface. If it is too small, the hot surface will transfer less heat to the material, that is, the heat transfer efficiency is low, resulting in low drying efficiency, long drying time, large heat consumption, and low energy utilization. Moreover, the heat source of the rake dryer needs Consumption of electric energy resources further causes the problem of high consumption of electric energy resources.

Contents of the invention

The object of the present invention is to provide a solar heat pump combined with a conductive dryer for traditional Chinese medicine to solve the problems raised in the above background technology.

In order to achieve the above objects, the present invention provides the following technical solution: a solar heat pump combined with Chinese herbal medicine conductive dryer, including a solar water heater, a heat pump, an insulated water tank and a rake dryer main body;

The solar water heater and the heat pump are used to heat the water in the thermal insulation water tank;

The hot water in the insulated water tank can circulate between the insulated water tank and the outer shell and inner tank of the rake dryer body;

The transmission shaft of the rake dryer main body is a hollow tubular structure, and the hot water in the insulation water tank can circulate between the insulation water tank and the transmission shaft;

A number of drying trough plates are provided on the transmission shaft, and the angle between two adjacent drying trough plates is 40-90°;

The drying trough plate includes a heat transfer plate and two feed troughs formed on both sides of the heat transfer plate, and the two ends of the feed trough are respectively a feed end and a discharge end;

Hot water in the drive shaft can flow through the heat transfer plate;

The drying trough plate is driven and rotated by the transmission shaft, so that the Chinese medicinal materials to be dried in the liner can enter the inside of the feed trough from the feed end and be discharged from the discharge end;

The heat transfer plate includes two groups of fixedly connected heat-conducting tubes. The two groups of heat-conducting tubes are symmetrically fixed on both radial sides of the transmission shaft. The length direction of the heat-conducting tubes is opposite to the axial length direction of the transmission shaft. parallel;

A blocking plate is fixed inside the transmission shaft corresponding to the position of the heat pipe;

Sealing shells are fixed at both ends of the heat-conducting pipe in the length direction. After the hot water in the transmission shaft flows through the sealing shell at the water-facing end and flows through the heat-conducting pipe, it passes through the sealing shell at the back-water end. fluid flows back to the drive shaft;

A first partition is fixed inside the sealed housing at the water-facing end, and a second partition is fixed inside the sealed housing. The first partition guides the hot water in the transmission shaft away from the transmission shaft. In the heat conduction pipe, the second partition guides the hot water to flow in a plurality of heat conduction pipes, and the heat conduction pipe adjacent to the transmission shaft is connected with the transmission shaft.

Preferably, the cross-section of the heat conduction tube is diamond-shaped.

Preferably, side plates are fixed on both sides of the sealed housing, and the material passing chute is located between two side plates on the same side of the heat transfer plate. The side plates are formed at the discharge end of the material passing chute. There is a side opening.

Preferably, a limiting plate is fixed between the two side plates located on the same side of the heat transfer plate;

The limiting plate includes an integrally formed inclined plate and a straight plate, and the straight plate is fixed at one end of the inclined plate close to the discharge end;

From the feed end of the feed chute to the discharge end, the distance between the inclined plate and the heat transfer plate gradually decreases.

Preferably, the rake dryer body is also provided with a leveling assembly inside, and the leveling assembly includes an impact plate and a trigger rod;

The impact plate is hinged to the side plate through a torsion spring;

The trigger rod is fixed on the upper part of the inner surface of the inner bag.

Preferably, the impact plate includes a impact block and a toggle plate that are fixedly connected, and the angle between the impact block and the toggle plate is 90°. One end of the toggle plate close to the side plate is hinged to the side through a pin. On the board, the torsion spring is sleeved on the pin.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention first uses a solar water heater and a heat pump to heat the water provided as a heat source by the main body of the rake dryer, thereby reducing energy consumption in the process of drying Chinese medicinal materials; further, by setting the transmission shaft of the main body of the rake dryer It is a hollow tubular structure with several drying trough plates installed on it. At the same time, hot water can flow through the drying trough plate through the transmission shaft. The transmission shaft is then used to drive the drying trough plate to rotate so that the Chinese medicinal materials to be dried can slide through the drying trough. The heat transfer surface of the plate, thereby increasing the contact duration and contact area between the Chinese medicinal materials and the heat transfer surface, shortening the drying time, significantly improving the drying efficiency of the Chinese medicinal materials, reducing the consumption of thermal energy resources, and saving energy; At the same time, in the present invention, the inner surface of the liner, the two surfaces of the drying tank plate, and the three heat transfer surfaces dry the Chinese medicinal materials to be dried in turn. That is, when one of the heat transfer surfaces is in contact with the Chinese medicinal materials, the other two heat transfer surfaces dry the Chinese medicinal materials. Each heat transfer surface is in a reheating state, so that every time the Chinese herbal medicine comes into contact with the heat transfer surface, the heat transfer surface can return to the most appropriate temperature, that is, it ensures that when the Chinese herbal medicine comes into contact with the three heat transfer surfaces The temperatures of the three heat transfer surfaces are kept consistent, which avoids insufficient temperature in a certain area of the heat transfer surface, which is conducive to uniform drying of Chinese medicinal materials and improves the actual drying quality.

By setting the cross section of the heat transfer tube into a rhombus, the present invention can make both surfaces of the heat transfer plate present a wave-like structure, so that the Chinese herbal medicine can be further increased when sliding across the surface of the heat transfer plate. The contact area with the heat transfer plate surface is large, and at the same time, it can also slow down the sliding speed of the Chinese herbal medicine on the heat transfer plate surface when the inclination angle of the heat transfer plate is too large, so that the Chinese herbal medicine can be heated for a longer time; by setting The limit plate can further limit the Chinese herbal medicines sliding on the surface of the heat transfer plate. When the inclination angle of the heat transfer plate gradually approaches ninety degrees, the limit plate can limit the Chinese medicinal materials that have separated from the surface of the heat transfer plate. The Chinese herbal medicines are blocked so that this part of the Chinese herbal medicines can come into contact with the surface of the heat transfer plate again under the friction of the limiting plate. At the same time, the limiting plate also has the effect of slowing down the sliding speed of the Chinese herbal medicines, so that the Chinese herbal medicines can be extended longer. The longer the contact time with the heat transfer plate surface, the better the drying efficiency.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a cross-sectional isometric side structural schematic diagram of the main body of the rake dryer of the present invention;

Figure 3 is a schematic structural diagram of an isometric side view of the drying tank plate of the present invention;

Figure 4 is a schematic side cross-sectional structural diagram of the drying tank plate of the present invention;

Figure 5 is a schematic front cross-sectional structural diagram of the drying tank plate of the present invention;

Figure 6 is a schematic structural diagram of the leveling assembly of the present invention;

Figure 7 is a schematic three-dimensional structural diagram of the impact plate of the present invention;

Figure 8 is a schematic top view of the structure of the impact plate of the present invention;

Figure 9 is a schematic rear structural view of the toggle plate of the present invention.

In the picture: 1. Solar water heater; 2. Heat pump; 3. Insulated water tank; 4. Main body of rake dryer; 41. Shell; 42. Inner tank; 43. Drive shaft; 431. Blocking plate; 44. Drying tank plate ; 441. Heat transfer plate; 4411. Heat pipe; 442. Feed chute; 4421. Feed end; 4422. Discharge end; 4423. Side port; 4424. Sealed shell; 4425. Side plate; 4426. First Partition plate; 4427, second partition plate; 443, limit plate; 4431, inclined plate; 4432, straight plate; 45, leveling component; 451, impact plate; 4511, impact block; 4512, toggle plate; 4513, pin Shaft; 4514, torsion spring; 452, trigger rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Referring to Figures 1-9, the present invention provides a technical solution:

A solar heat pump combined with Chinese herbal medicine conductive dryer, as shown in Figure 1, includes a solar water heater 1, a heat pump 2, an insulated water tank 3 and a rake dryer main body 4; among them, the solar water heater 1 and the heat pump 2 are used to heat the insulated water tank 3; the water inside the thermal insulation water tank 3 is always maintained at a certain temperature, thereby providing heat for the Chinese medicinal materials to be dried. The main body 4 of the rake dryer will use the hot water with a certain temperature to dry the Chinese medicinal materials.

As shown in Figures 1 and 2, the hot water in the insulated water tank 3 can circulate between the insulated water tank 3 and the outer shell 41 and the inner tank 42 of the rake dryer body 4, thereby transferring the heat in the hot water to the rake. into the inner tank 42 of the main body 4 of the dryer, and then transferred from the inner tank 42 to the Chinese medicinal materials to realize the drying of the Chinese medicinal materials.

The main body 4 of the rake dryer is arranged to tilt to one side, as shown in Figure 1 of the description, so that during the drying process, the Chinese medicinal materials can move toward It moves toward the opening of the main body 4 of the rake dryer that is tilted downward, and when it finally moves to the opening, drying is completed and the material is discharged.

Furthermore, in order to improve the heat transfer efficiency, the transmission shaft 43 of the rake dryer main body 4 is also improved in the present invention, as follows.

As shown in Figures 2 to 5, the transmission shaft 43 of the rake dryer main body 4 is a hollow tubular structure, and the hot water in the insulation water tank 3 can circulate between the insulation water tank 3 and the transmission shaft 43; the specific circulation method is: : The hot water inlet pipe drawn from the insulated water tank 3 is connected to a rotary seal at one end of the transmission shaft 43 through a mechanical seal. The other end of the transmission shaft 43 is also connected to a hot water return pipe through a mechanical seal rotary seal, so that a hot water return pipe can be formed. cycle.

Moreover, a plurality of drying groove plates 44 are also provided on the transmission shaft 43 to increase the heat transfer area and the contact duration between the Chinese medicinal materials and the heat transfer surface. details as follows.

As shown in Figures 2 to 3, a number of drying trough plates 44 are provided on the transmission shaft 43, and the angle between two adjacent drying trough plates 44 is 40-90°; in this embodiment, during rake drying There are only two adjacent drying tank plates 44 in the main body 4 of the machine. The specific number and size of the drying tank plates 44 can be selected according to the actual Chinese medicinal materials that need to be dried. Between the two adjacent drying tank plates 44 The included angle is 90°. Viewed as a whole, the drying tank plate 44 is an I-shaped plate. Specifically, the drying tank plate 44 includes a heat transfer plate 441 and two material passing grooves 442 formed on both sides of the heat transferring plate 441. The material passing grooves 442 The two ends are the feed end 4421 and the discharge end 4422 respectively; and the hot water in the transmission shaft 43 can flow through the heat transfer plate 441, thereby transferring the heat in the hot water to the surface of the heat transfer plate 441, and then by The heat transfer plate 441 is transferred to the Chinese medicinal materials to be dried.

In actual use, the drying trough plate 44 is driven to rotate by the transmission shaft 43, and the rotation speed of the transmission shaft 43 is 7-8 r/min, so that the Chinese medicinal materials to be dried in the inner tank 42 can enter the inside of the feeding trough 442 from the feed end 4421. , and be discharged from the discharge end 4422. During this process, the Chinese medicinal materials to be dried will slide across the surface of the heat transfer plate 441, so that all the heat on the surface of the heat transfer plate 441 can be transferred to the Chinese medicinal materials to be dried; When the Chinese herbal medicine slides through one of the heat transfer plates 441, it will fall to the bottom of the inner surface of the inner pot 42 under the action of gravity, and absorb the heat from the bottom of the inner surface of the inner pot 42. Then, as the transmission shaft 43 continues By rotating, the Chinese medicinal materials will enter from the inner bottom of the inner tank 42 to another surface of the heat transfer plate 441, and the heat on the other plate is used to dry the Chinese medicinal materials. This forms a cycle and speeds up the drying of the Chinese medicinal materials. .

In the above scheme, the solar water heater 1 and the heat pump 2 are first used to heat the water that provides the heat source for the rake dryer body 4, thereby reducing the energy consumption in the process of drying Chinese medicinal materials; further, by rake drying The transmission shaft 43 of the main body 4 is set as a hollow tubular structure, and several drying tank plates 44 are arranged on it. At the same time, the hot water can flow through the drying tank plate 44 through the transmission shaft 43, and then the transmission shaft 43 is used to drive the drying tank plate 44. Rotate so that the Chinese medicinal materials to be dried can slide across the heat transfer surface of the drying tank plate 44, thereby increasing the contact time and contact area between the Chinese medicinal materials and the heat transfer surface, shortening the drying time, and significantly improving the quality of the Chinese medicinal materials. The drying efficiency reduces the consumption of thermal energy resources and saves energy. At the same time, in the present invention, the inner surface of the inner tank 42, the two surfaces of the drying tank plate 44, and the three heat transfer surfaces take turns to dry the Chinese medicinal materials to be dried. That is to say, when one of the heat transfer surfaces is in contact with the Chinese herbal medicine, the other two heat transfer surfaces are in a reheating state, so that every time the Chinese herbal medicine comes into contact with the heat transfer surface, the heat transfer surface can be restored to the most appropriate state. temperature, that is, ensuring that the temperatures of the three heat transfer surfaces are consistent when the Chinese herbal medicines are in contact with the three heat transfer surfaces, thus avoiding insufficient temperature in a certain area on the heat transfer surface (for example, when Chinese herbal medicines are accumulated on the heat transfer surface for a long time In a certain area, the heat in this area will be absorbed by the Chinese herbal medicines, resulting in a decrease in the temperature in this area), which is conducive to uniform drying of the Chinese herbal medicines and improves the actual drying quality.

As shown in Figure 4, the cross-section of the heat pipe 4411 is diamond-shaped. In this way, both surfaces of the heat transfer plate 441 can present a wave-like structure, so that the Chinese herbal medicine can further increase the contact area with the surface of the heat transfer plate 441 when sliding across the surface of the heat transfer plate 441 , at the same time, when the inclination angle of the heat transfer plate 441 is too large, the sliding speed of the Chinese medicinal materials on the surface of the heat transfer plate 441 can also be slowed down, so that the Chinese medicinal materials can be heated for a longer time.

As shown in Figures 3 to 5, the heat transfer plate 441 includes two groups of fixedly connected heat pipes 4411. The two groups of heat pipes 4411 are symmetrically fixed on both radial sides of the transmission shaft 43. The length direction of the heat pipes 4411 is in line with the transmission. The longitudinal directions of the shafts 43 are parallel to each other. In this embodiment, each group of heat pipes 4411 is provided with five heat pipes.

A blocking plate 431 is fixed inside the transmission shaft 43 corresponding to the position of the heat pipe 4411. The blocking plate 431 is used to block hot water so that the hot water can flow into the inside of the heat pipe 4411. The blocking plate 431 in this embodiment is in the form of Tapered (as shown in Figure 5).

Sealing shells 4424 are fixed at both ends of the heat pipe 4411 in the length direction. The hot water in the transmission shaft 43 flows through the sealing shell 4424 at the upstream end and flows through the heat pipe 4411, and then flows back to the transmission from the sealing shell 4424 at the backwater end. Axis 43. The sealing housing 4424 at the water-facing end is the sealing housing 4424 at the left end as shown in Figure 5 . Therefore, the sealing housing 4424 at the back-water end is the sealing housing 4424 at the right end as shown in Figure 5 . The transmission shaft 43 passes through the two sealed housings 4424 and is welded and fixed thereto.

As shown in Figure 5, a first partition 4426 is fixed inside the sealing housing 4424 at the water-facing end, and a second partition 4427 is fixed inside the sealing housing 4424. The first partition 4426 absorbs the heat in the transmission shaft 43. The water is led into the heat-conducting pipes 4411 away from the transmission shaft 43 . The second partition 4427 guides the hot water to flow in several heat-conducting pipes 4411 , and the heat-conducting pipes 4411 adjacent to the transmission shaft 43 are connected with the transmission shaft 43 .

The specific flow of hot water flowing through the heat transfer plate 441 is shown by the arrows in Figure 5. The details are as follows: the hot water in the transmission shaft 43 is blocked by the blocking plate 431, and then enters through the hole opened in the transmission shaft 43. In the sealed housing 4424 at the water end, at this time, the first partition 4426 inside the sealed housing 4424 at the water end guides the hot water into the heat transfer pipe 4411 farthest from the transmission shaft 43, as shown in Figure 5, and then the hot water is The water flows into the sealed housing 4424 at the backwater end through the heat transfer pipe 4411 that is farthest from the drive shaft 43, and then passes through the second partition 4427 in the sealed housing 4424 at the backwater end to allow the hot water to enter the room that is farthest from the drive shaft 43. The heat transfer pipe 4411 is fixedly connected to the heat transfer pipe 4411. In this cycle, the hot water gradually flows from far to near to the heat transfer pipe 4411 closest to the transmission shaft 43, and then enters the sealed shell 4424 at the back water end, and finally flows through the back water. The sealed housing 4424 at the end flows back to the inside of the transmission shaft 43, thereby using hot water to heat the entire heat transfer plate 441.

As shown in Figure 3, side plates 4425 are fixed on both sides of the sealed housing 4424. The material passing groove 442 is located between the two side plates 4425 on the same side of the heat transfer plate 441. The side plates 4425 are at the outlet of the material passing groove 442. A side opening 4423 is formed at the material end 4422, and the side opening 4423 is used to allow part of the Chinese medicinal materials sliding across the surface of the heat transfer plate 441 to enter the inner bottom of the inner pot 42 from both sides of the discharge end 4422.

As shown in Figure 3, a limiting plate 443 is fixed between the two side plates 4425 on the same side of the heat transfer plate 441; the limiting plate 443 includes an integrally formed inclined plate 4431 and a straight plate 4432, and the straight plate 4432 is fixed to the inclined plate 4431 One end close to the discharge end 4422; from the feed end 4421 of the material chute 442 to the discharge end 4422, the distance between the inclined plate 4431 and the heat transfer plate 441 gradually decreases.

Through the provided limit plate 443, the Chinese medicinal materials sliding on the surface of the heat transfer plate 441 can be further limited. When the inclination angle of the heat transfer plate 441 gradually approaches ninety degrees, the limit plate 443 can limit the flow of Chinese medicinal materials from the heat transfer plate 441. The detached Chinese medicinal materials on the surface of the hot plate 441 are blocked, so that this part of the Chinese medicinal materials can come into contact with the surface of the heat transfer plate 441 again under the friction of the limiting plate 443. At the same time, the limiting plate 443 also has the function of slowing down the Chinese medicinal materials. The sliding speed of the material can extend the contact time between the Chinese medicinal material and the surface of the heat transfer plate 441 and improve the drying efficiency.

As shown in Figure 6, the feed end 4421 is at the lower right corner, and the Chinese herbal medicine materials can be concentrated here. When the drying tank plate 44 starts to rotate, the feed end 4421 pushes the Chinese herbal medicine materials and starts to rotate counterclockwise. , driving the Chinese herbal medicine materials to rotate one circle, and drying is performed during the rotation. After one counterclockwise rotation, the Chinese herbal medicine materials follow the drying tank plate 44 to move to the discharge end 4422, and pass through the side openings 4423 on both sides. Move outward, transfer to the other side, perform the next round of rotation and dry simultaneously, and so on until the material moves to the inclined bottom opening of the rake dryer body 4 for discharge.

As shown in Figures 6 to 9, a leveling assembly 45 is also provided inside the main body 4 of the rake dryer. The leveling assembly 45 can drive the heat transfer plate 441 to vibrate in the early stage when the heat transfer plate 441 rotates from a horizontal to a vertical state. , so that the Chinese herbal medicines accumulated at the feed end 4421 can gradually be spread flat on the heat transfer plate 441. At the same time, the vibration can also make the materials better contact with the wavy surface of the heat transfer plate 441, such as originally hanging in the air. The Chinese medicinal materials gradually come close to the wavy surface of the heat transfer plate 441 under the action of vibration, so that the material can absorb heat on the heat transfer surface more conveniently.

Specifically, as shown in Figures 7 to 9, the leveling assembly 45 includes an impact plate 451 and a trigger rod 452; the impact plate 451 is hinged on the side plate 4425 through a torsion spring 4514; the trigger rod 452 is fixed on the inner surface of the inner bladder 42 upper part.

Further, as shown in Figures 7 to 9, the impact plate 451 includes a fixedly connected impact block 4511 and a dial plate 4512. The impact block 4511 and the dial plate 4512 are both plate-shaped, but the thickness of the impact block 4511 is much larger than that of the dial plate. The thickness of the moving plate 4512 is such that a strong vibration can be generated when the impact block 4511 hits the side plate 4425, and the angle between the impact block 4511 and the toggle plate 4512 is 90°, and the toggle plate 4512 is close to the side plate 4425 One end is hinged to the side plate 4425 through a pin 4513, and a torsion spring 4514 is sleeved on the pin 4513.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. A solar heat pump combined traditional Chinese medicinal material conduction type dryer is characterized by comprising a solar water heater, a heat pump, a heat preservation water tank and a rake dryer main body;

the solar water heater and the heat pump are used for heating water in the heat preservation water tank;

the hot water in the heat preservation water tank can circulate between the heat preservation water tank and the shell and the liner of the rake dryer main body;

the transmission shaft of the rake dryer main body is of a hollow tubular structure, and hot water in the heat preservation water tank can circulate between the heat preservation water tank and the transmission shaft;

a plurality of drying groove plates are arranged on the transmission shaft, and the included angle between two adjacent drying groove plates is 40-90 degrees;

the drying groove plate comprises a heat transfer plate and two material passing grooves formed on two plate surface sides of the heat transfer plate, and two ends of each material passing groove are respectively provided with a feeding end and a discharging end;

hot water in the drive shaft may flow through the heat transfer plates;

the drying trough plate is driven to rotate by the transmission shaft, so that the traditional Chinese medicinal materials to be dried in the inner container can enter the interior of the trough from the feeding end and be discharged from the discharging end;

the heat transfer plate comprises two groups of heat transfer pipes fixedly connected, the two groups of heat transfer pipes are symmetrically fixed on two radial sides of the transmission shaft, and the pipe length direction of the heat transfer pipes is parallel to the shaft length direction of the transmission shaft;

a blocking plate is fixed in the transmission shaft at a position corresponding to the heat conduction pipe;

the two ends of the heat conduction pipe Guan Changfang are both fixed with sealing shells, and hot water in the transmission shaft flows through the heat conduction pipe through the sealing shells at the water facing end and then flows back to the transmission shaft from the sealing shells at the water backing end;

the inside of the sealed shell at the water facing end is fixedly provided with a first baffle, the inside of the sealed shell is fixedly provided with a second baffle, the first baffle guides hot water in the transmission shaft to the heat conduction pipes far away from the transmission shaft, the second baffle guides the hot water to flow in the plurality of heat conduction pipes, and the heat conduction pipes adjacent to the transmission shaft are communicated with the transmission shaft.

2. The solar heat pump combined traditional Chinese medicine conduction dryer as claimed in claim 1, wherein: the cross section of the heat conduction pipe is diamond-shaped.

3. The solar heat pump combined traditional Chinese medicine conduction dryer as claimed in claim 2, wherein: the side plates are fixed on two sides of the sealing shell, the material passing groove is positioned between the two side plates on the same side of the heat transfer plate, and a side opening is formed in the position of the discharge end of the material passing groove on the side plates.

4. A solar heat pump combined traditional Chinese medicine conduction dryer as claimed in claim 3, wherein: a limiting plate is fixed between two side plates positioned on the same side of the heat transfer plate;

the limiting plate comprises an integrally formed inclined plate and a straight plate, and the straight plate is fixed at one end of the inclined plate, which is close to the discharge end;

from the feeding end to the discharging end of the material passing groove, the distance between the inclined plate and the heat transfer plate is gradually reduced.

5. The solar heat pump combined traditional Chinese medicine conduction dryer as claimed in claim 4, wherein: the inside of the rake dryer main body is also provided with a leveling component, and the leveling component comprises an impact plate and a trigger rod;

the impact plate is hinged on the side plate through a torsion spring;

the trigger rod is fixed at the upper part of the inner surface of the inner container.

6. The solar heat pump combined traditional Chinese medicine conduction dryer as claimed in claim 5, wherein: the impact plate comprises an impact block and a poking plate which are fixedly connected, an included angle between the impact block and the poking plate is 90 degrees, one end of the poking plate, which is close to the side plate, is hinged to the side plate through a pin shaft, and the torsion spring is sleeved on the pin shaft.