Polygonatum sibiricum steaming device and steaming method thereof

Abstract

The invention relates to the technical field of medicinal material processing, and discloses a rhizoma polygonati steaming device which comprises a steaming tank, a rotating shaft is rotatably mounted in the steaming tank, a driving motor is fixedly mounted at the end of the steaming tank, and the driving motor drives the rotating shaft to rotate in the forward direction or the reverse direction; an annular groove is formed in the surface of the rotating shaft, and a plurality of partition plates are slidably inserted into the surface of the rotating shaft and divide the annular groove into a plurality of unit grooves. According to the steaming device, the rotating shaft capable of rotating slowly is arranged in the steaming tank, the multiple unit grooves are formed in the periphery of the rotating shaft, the rotating speed of the rotating shaft and the telescopic rhythm of the partition plates are controlled, materials in the unit grooves in the upper side can roll into the unit grooves in the lower side, and the materials in the upper layer can be turned to the position of the lower layer; the material turning mode can well prevent the materials from being broken and enable the materials to be heated evenly, the automatic material turning effect is achieved, and the problems that the materials are heated unevenly in the steaming process and nutritional ingredients are seriously lost are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medicinal material processing, in particular to a polygonatum steaming device and a steaming method thereof. Background Art

[0002] The modern processing method of polygonatum mainly uses the steaming method. Different origins and different processing times have different effects on the water content, appearance color, tongue numbness (throat pricking), water-soluble extracts, alcohol-soluble extracts, polysaccharide content and other indicators of polygonatum. In order to overcome the adverse effect of steaming time on polysaccharide content, in the prior art, a patent document with announcement number CN113230136A has developed a cyclic steaming device and steaming process for steaming polygonatum, including: a steaming tower, a reaction unit and a discharge pipeline. The steaming tower has a vertical cross section. The wall ring is provided with a circle of circulation pipes, the input end of the circulation pipes is detachably connected to an external steam source, there are no less than two reaction units, the reaction units are arranged in the steaming tower, and the circulation pipes are respectively provided with steam exhaust components connected with each reaction unit to allow steam to pass into each reaction unit. The exhaust pipelines are respectively connected with each reaction unit to discharge the liquid in the reaction unit. The invention provides a circulatory steaming device and steaming process for steaming polygonatum, which can realize the processing of multiple groups of polygonatum polysaccharides with different contents in the same steaming device.

[0003] Studies have shown that with the increase in the number of steaming times, the content of Polygonatum sibiricum polysaccharide gradually decreases and tends to be stable. Under high humidity and high temperature conditions, sugar isomerization will occur in Polygonatum sibiricum polysaccharide, causing its monosaccharide composition to change, resulting in the loss of Polygonatum sibiricum polysaccharide components. Since the current steaming devices are all static steaming, the local temperature of Polygonatum sibiricum is too high, which accelerates the loss of nutrients. If the material is turned over regularly to ensure uniform heating, the workload is huge and production is delayed. If it is simply stirred to ensure uniform heating, it is easy to cause the material to break. Based on this, the existing Polygonatum sibiricum steaming process has the problem of difficulty in turning the material, which affects the quality of the product and needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a polygonatum steaming device and a steaming method thereof.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a polygonatum steaming device, comprising a steaming pot, a rotating shaft is rotatably installed inside the steaming pot, a driving motor is fixedly installed at the end of the steaming pot, and the driving motor drives the rotating shaft to rotate in a positive or reverse direction; an air inlet pipe, an exhaust pipe and a feeding window are respectively fixedly installed on the upper side of the steaming pot, a unloading door panel is rotatably installed on one side of the steaming pot, and a discharge valve is fixedly installed on the lower side of the steaming pot.

[0006] An annular groove is provided on the surface of the rotating shaft, and a plurality of partitions are slidably inserted on the surface of the rotating shaft, and the plurality of partitions divide the annular groove into a plurality of unit grooves. A plurality of telescopic drive components are embedded in the interior of the rotating shaft, and each telescopic drive component drives each partition to telescope. When one of the partitions is retracted into the rotating shaft, the unit grooves on both sides of the partition are connected, so that the material in the upper unit groove can roll into the lower unit groove. This material turning method can effectively prevent material breakage and make the material heated evenly, thereby achieving the effect of automatic material turning, and solves the problem of uneven heating of steamed materials and serious loss of nutrients.

[0007] Preferably, the telescopic drive assembly includes a cylinder body embedded in a rotating shaft, a movable plug is slidably installed in the cylinder body, a telescopic rod extending out of the cylinder body is fixedly installed at the end of the movable plug, the end of the telescopic rod is fixedly connected to the partition, a return spring is sleeved on the surface of the telescopic rod, the return spring presses against the movable plug to retract the telescopic rod into the cylinder body.

[0008] The inner wall of the unit groove is provided with a plurality of input holes, and the end of the rotating shaft is provided with a plurality of output holes. The movable plug divides the inner cavity of the cylinder body into two air chambers. A gap is reserved between the movable plug and the inner wall of the cylinder body. The two air chambers are connected through the gap. The input holes and the output holes are respectively connected with the two air chambers. The telescopic drive assembly is powered by the pressure difference between the unit groove and the outside world to realize the telescopic action of the partition.

[0009] Preferably, a flow guide cover is embedded in the end of the steaming tank, a connecting port is opened on the surface of the flow guide cover, a pressure relief pipe is fixedly installed on the surface of the flow guide cover, an electric pressure regulating valve is installed on the end of the pressure relief pipe, the end of the rotating shaft is in sliding contact with the end face of the flow guide cover, and during the rotation of the rotating shaft, a plurality of output holes are aligned and connected with the connecting port in turn, and the change in the opening size of the electric pressure regulating valve can adjust the speed of the air pressure drop in the unit tank, thereby achieving the control of the speed of the partition lifting and lowering action, that is, indirectly controlling the material turning speed, so that the material turning rhythm matches the rotation rhythm of the rotating shaft, so that the device has better adjustability.

[0010] Preferably, a plurality of mounting grooves are provided on the surface of the rotating shaft, and a partition is slidably installed in the mounting groove. A guide groove is provided on the side of the partition away from the rotating shaft, and a scraping blade is formed on one side of the guide groove. Under the action of a reset spring, the partition extends to the outside of the mounting groove, so that the scraping blade slides in contact with the inner wall of the steaming pot, and the Polygonatum sibiricum juice is collected in the guide groove, which facilitates the Polygonatum sibiricum juice to be sprinkled back to the surface of the Polygonatum sibiricum material, thereby reducing the loss and waste of nutrients.

[0011] Preferably, an adjusting screw is threadedly installed on the end of the rotating shaft, the end of the adjusting screw extends into the mounting groove, and a sliding sleeve is slidably installed on the end of the adjusting screw located in the mounting groove, a connecting rod is rotatably installed on the surface of the sliding sleeve, and the end of the connecting rod away from the sliding sleeve is rotatably connected to the partition.

[0012] The end of the adjusting screw located in the mounting groove is the smooth rod part, and the sliding sleeve is slidably installed on the surface of the smooth rod part of the adjusting screw. A supporting spring is sleeved on the surface of the smooth rod part of the adjusting screw, and the supporting spring presses against the sliding sleeve, so that the gap between the partition and each partition and the inner wall of the steaming tank can be adjusted, thereby meeting the use requirements of the device for screening materials and performing differentiated steaming.

[0013] Preferably, a discharge window is provided on the surface of the steaming tank, a discharge hopper is fixedly installed on the lower edge of the discharge window, a rotating cylinder is fixedly installed on the surface of the steaming tank, the rotating cylinder drives the discharge door plate to rotate, so that the discharge door plate rotates and covers the discharge window, thereby facilitating the unloading of the device.

[0014] The present invention has the following beneficial effects:

[0015] 1. The steaming device proposed by the present invention has a slowly rotating shaft in the steaming tank, and a plurality of unit grooves are arranged around the rotating shaft. The rotation speed of the rotating shaft and the expansion and contraction rhythm of the partition are controlled so that the material in the upper unit groove can roll into the lower unit groove, and the upper layer of the material can be turned over to the lower layer. This turning method can well prevent material breakage and make the material heated evenly, achieving the effect of automatic turning, and solving the problem of uneven heating of the material during steaming and serious loss of nutrients.

[0016] 2. The steaming device proposed in the present invention has an adjusting screw at the end of the rotating shaft. The gap between each partition and the inner wall of the steaming tank can be adjusted by using the different screw-in and screw-out lengths of the adjusting screw. The materials can be screened by using the gap so that the materials are classified by size and stored in each unit tank. Hot steam is introduced into each unit tank in turn through the air inlet pipe. Since the heat required for steaming materials of different sizes is different, differentiated steaming can be performed by changing the rotation rhythm of the rotating shaft to meet the needs of steaming materials of different sizes.

[0017] 3. In the steaming device proposed in the present invention, the telescopic action of the partition is controlled by a telescopic driving assembly, and the power of the telescopic driving assembly is provided by the pressure difference between the unit slot and the outside. The change in the opening size of the electric pressure regulating valve can adjust the speed of the pressure drop in the unit slot, thereby controlling the speed of the partition lifting action, that is, indirectly controlling the material turning speed, so that the material turning rhythm matches the rotation rhythm of the rotating shaft, so that the device has better adjustability and provides conditions for automatic control.

[0018] 4. The steaming device proposed in the present invention is provided with a guide groove and a scraping blade on the partition. When the partition slides along the inner wall of the steaming tank and makes a circular motion, the polygonatum juice produced by steaming the polygonatum enters the guide groove. In the process of turning the material, the hot steam blows the polygonatum juice in the guide groove out and sprinkles it on the surface of the polygonatum material. After cooling treatment, the polygonatum juice adheres to the surface of the polygonatum material, which can reduce the loss and waste of nutrients and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of the steaming device proposed by the present invention (I);

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the steaming device proposed by the present invention (II);

[0021] Figure 3 It is a schematic diagram of the side cross-section structure of the steaming device proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating shaft proposed by the present invention (I);

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the rotating shaft proposed by the present invention (II);

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating shaft proposed by the present invention (III);

[0025] Figure 7 This is a schematic diagram of the front cross-section structure of the rotating shaft proposed by the present invention;

[0026] Figure 8 This is a schematic diagram of the side cross-section structure of the rotating shaft proposed by the present invention (I);

[0027] Fig. 9 This is a schematic diagram of the side cross-section structure of the rotating shaft proposed by the present invention (II);

[0028] Fig.10 This is a schematic diagram of the side sectional structure of the rotating shaft proposed by the present invention (III).

[0029] In the figure: 1 steaming tank, 2 rotating shaft, 3 driving motor, 4 partition, 5 unit groove, 6 air inlet pipe, 7 exhaust pipe, 8 feeding window, 9 unloading door plate, 10 discharge valve, 11 cylinder body, 12 movable plug, 13 telescopic rod, 15 return spring, 16 input hole, 17 output hole, 18 guide cover, 19 connecting port, 20 pressure relief pipe, 21 electric pressure regulating valve, 22 guide groove, 23 scraper blade, 24 unloading hopper, 25 adjusting screw, 26 sliding sleeve, 27 connecting rod, 28 supporting spring, 29 rotating cylinder. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference Figure 1-10 A device for steaming polygonatum comprises a steaming pot 1, a rotating shaft 2 is rotatably installed inside the steaming pot 1, a driving motor 3 is fixedly installed at the end of the steaming pot 1, and the driving motor 3 drives the rotating shaft 2 to rotate in a positive direction or a reverse direction.

[0033] An annular groove is provided on the surface of the rotating shaft 2, and a plurality of partitions 4 are slidably inserted on the surface of the rotating shaft 2. The plurality of partitions 4 divide the annular groove into a plurality of unit grooves 5. A plurality of telescopic drive components are embedded inside the rotating shaft 2, and each telescopic drive component drives each partition 4 to telescope. When one of the partitions 4 is retracted into the rotating shaft 2, the unit grooves 5 on both sides of one of the partitions 4 are connected, so that the material in the upper unit groove 5 can roll into the lower unit groove 5.

[0034] An air inlet pipe 6, an exhaust pipe 7 and a feeding window 8 are fixedly installed on the upper side of the steaming tank 1, a discharge door plate 9 is rotatably installed on one side of the steaming tank 1, and a discharge valve 10 is fixedly installed on the lower side of the steaming tank 1. A discharge window is opened on the surface of the steaming tank 1, and a discharge hopper 24 is fixedly installed on the lower edge of the discharge window. A rotating cylinder 29 is fixedly installed on the surface of the steaming tank 1, and the rotating cylinder 29 drives the discharge door plate 9 to rotate so that the discharge door plate 9 rotates and covers the discharge window.

[0035] In this embodiment, reference Figure 7 The telescopic drive assembly includes a cylinder body 11 embedded in the rotating shaft 2, a movable plug 12 is slidably installed in the cylinder body 11, a telescopic rod 13 extending to the outside of the cylinder body 11 is fixedly installed at the end of the movable plug 12, the end of the telescopic rod 13 is fixedly connected to the partition 4, and a return spring 15 is sleeved on the surface of the telescopic rod 13. The return spring 15 presses against the movable plug 12 to retract the telescopic rod 13 into the cylinder body 11.

[0036] refer to Figure 4 , Figure 5The inner wall of the unit groove 5 is provided with a plurality of input holes 16, and the end of the rotating shaft 2 is provided with a plurality of output holes 17. The movable plug 12 divides the inner cavity of the cylinder body 11 into two air chambers. A gap is reserved between the movable plug 12 and the inner wall of the cylinder body 11. The two air chambers are connected through the gap. The input hole 16 and the output hole 17 are respectively connected to the above-mentioned two air chambers.

[0037] A guide cover 18 is embedded at the end of the steaming pot 1, a communication port 19 is opened on the surface of the guide cover 18, a pressure relief pipe 20 is fixedly installed on the surface of the guide cover 18, and an electric pressure regulating valve 21 is installed at the end of the pressure relief pipe 20. The end of the rotating shaft 2 is in sliding contact with the end surface of the guide cover 18. During the rotation of the rotating shaft 2, the multiple output holes 17 are aligned and communicated with the communication port 19 in sequence, that is, reference Figure 7 After the internal pressure of the unit tank 5 increases, the air in the unit tank 5 enters the cylinder body 11 through the input hole 16, then enters the guide cover 18 through the output hole 17 and the connecting port 19, and finally is discharged from the pressure relief pipe 20. The electric pressure regulating valve 21 plays a role in controlling the output pressure and flow of the pressure relief pipe 20. In this process, a pressure difference is formed between the upper and lower parts of the movable plug 12, and the steam airflow pushes the telescopic rod 13 to extend, that is, the partition plate 4 is driven to retract into the rotating shaft 2 (such as Fig. 9 As shown in the left figure, when the output hole 17 is staggered with the connecting port 19, the steam flow in the cylinder body 11 cannot be discharged from the pressure relief pipe 20, and the air pressure on both sides of the movable plug 12 finally reaches equilibrium (because the two air chambers on both sides of the movable plug 12 are connected through the above-mentioned gap). Under the action of the reset spring 15, the telescopic rod 13 is retracted into the cylinder body 11, that is, the driving partition 4 is extended outward from the rotating shaft 2 (as shown in the right figure). Fig. 9 as shown in the figure on the right).

[0038] In this embodiment, reference Figure 7 A plurality of mounting grooves are provided on the surface of the rotating shaft 2, and the partition 4 is slidably installed in the mounting groove. A guide groove 22 is provided on the side of the partition 4 away from the rotating shaft 2, and a scraping blade 23 is formed on one side of the guide groove 22. Under the action of the reset spring 15, the partition 4 extends to the outside of the mounting groove, so that the scraping blade 23 slides in contact with the inner wall of the steaming pot 1.

[0039] An adjusting screw 25 is threadedly installed on the end of the rotating shaft 2, and the end of the adjusting screw 25 extends into the mounting groove, and a sliding sleeve 26 is slidably installed on the end of the adjusting screw 25 located in the mounting groove, and a connecting rod 27 is rotatably installed on the surface of the sliding sleeve 26, and the end of the connecting rod 27 away from the sliding sleeve 26 is rotatably connected to the partition 4.

[0040] Among them, the end of the adjusting screw 25 located in the installation groove is a smooth rod portion, and the sliding sleeve 26 is slidably installed on the surface of the smooth rod portion of the adjusting screw 25. The surface of the smooth rod portion of the adjusting screw 25 is sleeved with a support spring 28, and the support spring 28 is pressed against the sliding sleeve 26. During use, the adjusting screw 25 is rotated, and the partition 4 can be driven to move into the installation groove through the traction of the connecting rod 27, and the distance between the partition 4 and the inner wall of the steaming tank 1 can be adjusted. Figure 8 As shown in A and B.

[0041] The present invention also proposes a steaming method of a polygonatum steaming device, comprising the following steps:

[0042] S1, feeding and preparation work, the polygonatum is fed into the unit tank 5 through the feeding window 8, the feeding window 8 is equipped with a sealing cover to seal the feeding window 8 entrance, the adjusting screw 25 is rotated to adjust the distance between each partition 4 and the inner wall of the steaming tank 1, hot steam is injected into the steaming tank 1 through the air inlet pipe 6 for preheating, the driving motor 3 drives the rotating shaft 2 to rotate counterclockwise to screen the polygonatum of different sizes, the adjusting screw 25 is rotated again to release the pulling force of the connecting rod 27 on the partition 4, so that the partition 4 is in sliding contact with the inside of the steaming tank 1, so that the classified polygonatum is stored in each unit tank 5 respectively;

[0043] Specifically, Figure 8 As shown, taking a mixed material containing large, medium and small pieces of polygonatum as an example, the gap at A is larger than the gap at B, the medium and small pieces of polygonatum pass through the gap at A and fall into the unit slot 5 at the middle position, and the small piece of polygonatum passes through the gap at B and falls into the unit slot 5 at the lower position, and the large, medium and small pieces of polygonatum are respectively stored in the three unit slots 5. It should be noted that after the rotating shaft 2 rotates for several circles, the materials in each unit slot 5 keep flowing and being screened, and finally the screening work of polygonatum of different sizes is realized;

[0044] S2, steaming process, hot steam is injected into the steaming tank 1 through the air inlet pipe 6, the output pressure of the exhaust pipe 7 is adjusted, the steam in the steaming tank 1 is discharged through the exhaust pipe 7, and the air pressure in the steaming tank 1 is controlled;

[0045] S3, turning the material, the driving motor 3 drives the rotating shaft 2 to rotate clockwise, and the pressure of the electric pressure regulating valve 21 is reduced. The steam in the steaming pot 1 enters the cylinder body 11 through the input hole 16, and then enters the guide cover 18 through the output hole 17, and then is discharged from the pressure relief pipe 20. In this process, the steam airflow pushes the telescopic rod 13 to extend, so that the partition 4 is retracted into the rotating shaft 2 at a certain speed (the moving speed of the partition 4 is determined by the opening and closing size of the electric pressure regulating valve 21, which is common knowledge and will not be explained here). During the process of the partition 4 retracting, the polygonatum in the upper unit groove 5 rolls down to the lower unit groove 5;

[0046] Specifically, Fig. 9As shown in the left figure, the partition 4 is lowered a certain distance, and the materials on the upper layer roll down to the lower unit groove 5 first, as shown in the figure below. Fig. 9 As shown in the right figure, after the partition 4 is completely lowered, the material in the lower layer finally rolls down into the lower unit groove 5, and finally the upper and lower layer materials are interchanged in the lower unit groove 5. It should be noted that the speed of turning the material is determined by the falling speed of the partition 4 and the rotation speed of the rotating shaft 2. The rotating shaft 2 rotates slowly, and the material is turned by rolling. Compared with the conventional stirring and turning, the material is subjected to less extrusion force and is not easy to break, thereby ensuring the integrity of the polygonatum block. If a large number of polygonatum blocks are broken, steaming under high temperature and high humidity environment will lead to rapid loss of nutrients;

[0047] During the turning process, the scraping blade 23 scrapes off the polygonatum juice on the inner wall of the steaming tank 1 (the polygonatum juice is mainly composed of polygonatum polysaccharide. After multiple steaming, a large amount of polygonatum juice will be precipitated from the polygonatum and adhere to the inner wall of the steaming tank 1), and the polygonatum juice enters the guide groove 22. Fig.10 As shown, at this time, a large amount of air in the steaming tank 1 is discharged from the pressure relief pipe 20, and the steam input from the air inlet pipe 6 quickly enters the steaming tank 1. The hot steam blows out the polygonatum juice in the guide groove 22 and sprinkles it on the surface of the polygonatum material. After cooling, the polygonatum juice adheres to the surface of the polygonatum material, which can reduce the loss and waste of nutrients and improve product quality.

[0048] S4, discharging. After the steaming time is met, the steam input is cut off, and the discharging door plate 9 is driven to flip by the rotating cylinder 29 to open the discharging window of the steaming tank 1. The driving motor 3 drives the rotating shaft 2 to rotate, so that the polygonatum in one or more unit grooves 5 is discharged from the discharging window respectively.

[0049] The steaming device proposed in the present invention provides an adjusting screw 25 at the end of the rotating shaft 2. The gap between each partition 4 and the inner wall of the steaming tank 1 can be adjusted by using the different screw-in and screw-out lengths of the adjusting screw 25. The material can be screened by using the gap to classify the material according to its size and store it in each unit slot 5. Hot steam is introduced into each unit slot 5 in sequence through the air inlet pipe 6. Since the amount of heat required for steaming materials of different sizes is different, the rotation rhythm of the rotating shaft 2 can be changed (when steam is introduced into the unit slot 5 storing large pieces of polygonatum, the rotation speed of the rotating shaft 2 is reduced, and when steam is introduced into the unit slot 5 storing small pieces of polygonatum, the rotation speed of the rotating shaft 2 is increased. Different steam input times introduce different amounts of heat) to perform differentiated steaming to meet the needs of steaming materials of different sizes.

[0050] The telescopic action of the partition 4 is controlled by a telescopic driving assembly, and the power of the telescopic driving assembly is provided by the pressure difference between the unit slot 5 and the outside world. The change in the opening size of the electric pressure regulating valve 21 can adjust the speed of the pressure drop in the unit slot 5, thereby controlling the speed of the lifting and lowering action of the partition 4, that is, indirectly controlling the turning speed, so that the turning rhythm matches the rotation rhythm of the rotating shaft 2, so that the device has better adjustability and provides conditions for automatic control.

[0051] A slowly rotating shaft 2 is provided in the steaming pot 1, and a plurality of unit grooves 5 are provided around the rotating shaft 2. The rotation speed of the rotating shaft 2 and the expansion and contraction rhythm of the partition 4 are controlled so that the material in the upper unit groove 5 can roll into the lower unit groove 5 and the upper layer of the material can be turned over to the lower layer. This material turning method can effectively prevent material breakage and make the material heated evenly, thereby achieving the effect of automatic material turning, and solving the problem of uneven heating of the material during steaming and serious loss of nutrients.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for steaming polygonatum, comprising a steaming tank (1), characterized in that: A rotating shaft (2) is rotatably mounted inside the steaming pot (1), and a driving motor (3) is fixedly mounted at the end of the steaming pot (1), and the driving motor (3) drives the rotating shaft (2) to rotate in a positive direction or a reverse direction; The surface of the rotating shaft (2) is provided with an annular groove, and a plurality of partitions (4) are slidably inserted on the surface of the rotating shaft (2), and the plurality of partitions (4) divide the annular groove into a plurality of unit grooves (5). A plurality of telescopic drive components are embedded inside the rotating shaft (2), and each telescopic drive component drives each partition (4) to telescope, and when one of the partitions (4) is retracted into the rotating shaft (2), the unit grooves (5) on both sides of the one of the partitions (4) are connected, so that the material in the upper unit groove (5) can roll into the lower unit groove (5); An air inlet pipe (6), an exhaust pipe (7) and a feeding window (8) are fixedly mounted on the upper side of the steaming tank (1), a discharge door plate (9) is rotatably mounted on one side of the steaming tank (1), and a discharge valve (10) is fixedly mounted on the lower side of the steaming tank (1).

2. The device for steaming polygonatum according to claim 1, characterized in that: The telescopic drive assembly comprises a cylinder body (11) embedded in a rotating shaft (2), a movable plug (12) is slidably mounted in the cylinder body (11), a telescopic rod (13) extending outside the cylinder body (11) is fixedly mounted at the end of the movable plug (12), the end of the telescopic rod (13) is fixedly connected to the partition (4), a return spring (15) is sleeved on the surface of the telescopic rod (13), and the return spring (15) presses against the movable plug (12) to retract the telescopic rod (13) into the cylinder body (11).

3. The device for steaming polygonatum according to claim 2, characterized in that: The inner wall of the unit groove (5) is provided with a plurality of input holes (16), the end of the rotating shaft (2) is provided with a plurality of output holes (17), the movable plug (12) divides the inner cavity of the cylinder body (11) into two air chambers, a gap is reserved between the movable plug (12) and the inner wall of the cylinder body (11), the two air chambers are connected through the gap, and the input hole (16) and the output hole (17) are respectively connected to the two air chambers.

4. The device for steaming polygonatum according to claim 3, characterized in that: A flow guide cover (18) is embedded at the end of the steaming pot (1), a communication port (19) is opened on the surface of the flow guide cover (18), a pressure relief pipe (20) is fixedly installed on the surface of the flow guide cover (18), and an electric pressure regulating valve (21) is installed at the end of the pressure relief pipe (20), the end of the rotating shaft (2) is in sliding contact with the end surface of the flow guide cover (18), and during the rotation of the rotating shaft (2), the plurality of output holes (17) are aligned and communicated with the communication port (19) in sequence.

5. The device for steaming polygonatum according to claim 4, characterized in that: A plurality of mounting grooves are provided on the surface of the rotating shaft (2), and the partition (4) is slidably installed in the mounting grooves. A guide groove (22) is provided on the side of the partition (4) away from the rotating shaft (2), and a scraping blade (23) is formed on one side of the guide groove (22). Under the action of a return spring (15), the partition (4) extends outward from the mounting groove, so that the scraping blade (23) is in sliding contact with the inner wall of the steaming pot (1).

6. The device for steaming polygonatum according to claim 5, characterized in that: An adjusting screw (25) is threadedly mounted on the end of the rotating shaft (2), the end of the adjusting screw (25) extends into the mounting groove, and a sliding sleeve (26) is slidably mounted on the end of the adjusting screw (25) located in the mounting groove, a connecting rod (27) is rotatably mounted on the surface of the sliding sleeve (26), and one end of the connecting rod (27) away from the sliding sleeve (26) is rotatably connected to the partition (4).

7. The device for steaming polygonatum according to claim 6, characterized in that: The end of the adjusting screw (25) located in the installation groove is a smooth rod portion, and the sliding sleeve (26) is slidably installed on the surface of the smooth rod portion of the adjusting screw (25). The surface of the smooth rod portion of the adjusting screw (25) is sleeved with a supporting spring (28), and the supporting spring (28) is pressed against the sliding sleeve (26).

8. The device for steaming polygonatum according to claim 7, characterized in that: A discharge window is provided on the surface of the steaming pot (1), a discharge hopper (24) is fixedly mounted on the lower edge of the discharge window, a rotary cylinder (29) is fixedly mounted on the surface of the steaming pot (1), and the rotary cylinder (29) drives the discharge door plate (9) to rotate so that the discharge door plate (9) rotates and covers the discharge window.

9. A steaming method of a polygonatum steaming device, characterized in that: The following steps are involved: S1, feeding and preparation work, feeding polygonatum into the unit slot (6) through the feeding window (8), sealing the entrance of the feeding window (8), rotating the adjusting screw (25), adjusting the distance between each partition (4) and the inner wall of the steaming pot (1), injecting hot steam into the steaming pot (1) through the air inlet pipe (6) for preheating, driving the motor (3) to drive the rotating shaft (2) to rotate counterclockwise to screen polygonatum of different sizes, rotating the adjusting screw (25) again, releasing the pulling force of the connecting rod (27) on the partition (4), making the partition (4) and the inside of the steaming pot (1) slide in contact, so that the classified polygonatum is stored in each unit slot (6); S2, steaming processing, hot steam is injected into the steaming tank (1) through the air inlet pipe (6), the output pressure of the exhaust pipe (7) is adjusted, the steam in the steaming tank (1) is discharged through the exhaust pipe (7), and the air pressure in the steaming tank (1) is controlled; S3, turning the material, the driving motor (3) drives the rotating shaft (2) to rotate clockwise, and the pressure of the electric pressure regulating valve (21) is reduced, and the steam in the steaming pot (1) enters the cylinder body (11) through the input hole (16), and then enters the guide cover (18) through the output hole (17), and then is discharged from the pressure relief pipe (20). In this process, the steam airflow pushes the telescopic rod (13) to extend, so that the partition (4) is retracted into the rotating shaft (2) at a certain speed. During the process of the partition (4) retracting, the polygonatum odoratum in the upper unit groove (5) rolls down into the lower unit groove (5); S4, discharging: after the steaming time is met, the steam input is cut off, the discharging door plate (9) is driven to flip by the rotating cylinder (29), the discharging window of the steaming pot (1) is opened, and the driving motor (3) drives the rotating shaft (2) to rotate, so that the polygonatum in one or more unit grooves (5) are discharged from the discharging window respectively.

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