WO2023025172A1

WO2023025172A1 - Freeze-dried ginger slice preparation system and method

Info

Publication number: WO2023025172A1
Application number: PCT/CN2022/114358
Authority: WO
Inventors: 李洪雷; 田舒铭; 师翠平; 王皓; 邢海涛
Original assignee: 重庆文理学院
Priority date: 2021-08-25
Filing date: 2022-08-23
Publication date: 2023-03-02
Also published as: CN113662220B; CN113662220A; LU504016B1

Abstract

Disclosed are a freeze-dried ginger slice preparation system and a method. The system comprises a freeze-drying barrel body (1), a supporting assembly (2), a fan assembly (3), a heating component (5), a roller assembly (4), a flow guide cover (6), a discharge assembly (7) and a feed pipe (8). The supporting assembly (2) comprises a supporting disc (21), a connecting rod (22) and a mounting disc (23). The fan assembly (3) comprises a drive motor (31), a motor shaft (32), a first pulley (33), and a fan blade (34). The roller assembly (4) comprises a roller body (41), a roller shaft (42), a second pulley (43), a rib (44) and a wavy annular guide rail (45). The discharge assembly (7) comprises a discharge groove (71), a return spring (72) and a roller assembly (73). The present system and method achieve rapid freeze-drying of ginger slices and, effectively prevent the problem of the quality of the frozen ginger slices being affected due to uneven temperature or water crystallization.

Description

A preparation system and method for freeze-dried ginger slices

technical field

The invention relates to the technical field of freeze-drying devices, in particular to a preparation system and method for freeze-dried ginger slices.

Background technique

At present, there are no freeze-dried products of ginger and related equipment. The preparation of traditional fruit and vegetable freeze-dried slices usually uses freeze-dried slices and multiple sublimation drying methods to freeze-dry them, so as to make freeze-dried fruit and vegetable snacks and keep them crisp. tender taste; however, there are the following problems in the preparation of ginger freeze-dried slices by traditional freeze-drying process: first, the multiple sublimation drying method is complicated, difficult to control and wastes energy; Water crystallization causes cracking of the lyophilized ginger slices and affects the appearance quality of the lyophilized slices; third, the traditional process often uses a heating plate for heating, and the heating temperature is uneven, which affects the quality of the lyophilized slices; The thickness of the slices is different. If they are freeze-dried in the same environment and at the same time, the freeze-drying speed will be different, which will easily cause uneven quality of the freeze-dried slices. Low.

Contents of the invention

The purpose of the present invention is to provide a preparation system for lyophilized ginger slices to solve the problems in the above-mentioned background technology, so as to realize rapid freeze-drying of ginger slices and avoid affecting the lyophilized slices due to uneven temperature or water crystallization. quality problem.

Another object of the present invention is to provide a method for preparing freeze-dried ginger slices, which can realize high-efficiency and rapid freeze-drying of ginger slices by using the above-mentioned system.

The object of the present invention is achieved through the following technical solutions:

A system for preparing freeze-dried ginger slices, characterized in that: it includes a freeze-drying cylinder body, a support assembly, a fan assembly, a heating element, a drum assembly, a shroud, a discharge assembly, and a feed pipe; the freeze-drying cylinder body It is a cylindrical structure and its bottom is set as a funnel. The inside of the freeze-drying cylinder body is hollow and the bottom is connected to the air inlet pipe; the support assembly is arranged in the freeze-drying cylinder body, including a support plate, a connecting rod and a mounting plate , the outer wall of the support plate is fixedly connected with the inner wall of the freeze-drying cylinder body and their central axes are collinear, a shaft hole is opened in the middle of the support plate and a blade opening is opened on one side of the shaft hole, the support plate The bottom surface corresponds to the fan blade opening and several connecting rods are evenly arranged around the central axis of the fan blade opening. The end of the connecting rod away from the support plate is fixedly connected to a mounting plate; , a motor shaft, a first pulley and fan blades, the drive motor is fixedly arranged on the bottom surface of the installation plate and the output end of the drive motor is fixedly connected to a motor shaft, and the end of the motor shaft away from the drive motor runs through the installation A fan blade is fixedly socketed on the plate and corresponds to the blade opening, and the first pulley is fixedly socketed on the outer wall of the motor shaft between the mounting plate and the fan blade; the heating component is arranged on the drive motor The lower side of the freeze-drying drum body; the drum assembly is arranged on the upper side of the support plate, including the drum body, the drum shaft, the second pulley, ribs and annular wave guide rails, and the drum body top has no The cover, its bottom surface is slidably connected with the support plate (that is, the cylinder body can produce the rotation of the central axis of the cylinder body relative to the support plate), and a cylinder shaft is fixedly arranged in the middle of the bottom surface of the cylinder body, and the cylinder shaft is far away from the cylinder. One end of the body passes through the shaft hole and the outer wall on the lower side of the support plate is fixedly sleeved with a second pulley, the second pulley is connected to the first pulley through a transmission belt, and the bottom surface of the drum body is wide Some air holes are evenly opened on the central axis, and some ribs are fixedly arranged on the surface of the bottom surface of the drum body and the central axis (and the ribs and the air holes do not interfere with each other), and the relative rotation between the drum body and the freeze-drying cylinder body Connected, the outer wall of the upper side of the drum body is fixedly provided with an annular wave guide rail; the guide cover is fixedly arranged on the inner upper side of the freeze-drying drum body, and its bottom is slidably connected with the drum body (that is, the drum body is relative to the guide rail. The flow cover can generate the rotation of the central axis of the drum body), and the side wall of the flow guide cover is provided with an opening, and the top of the flow guide cover is provided with an air outlet pipe, and the air outlet pipe runs through the freeze-drying cylinder body Top; one side of the outer wall of the freeze-drying cylinder body is provided with a discharge port corresponding to the opening, and a discharge assembly is provided at the discharge port, and the discharge assembly includes a discharge groove, a return spring and a roller assembly. The outer wall of the freeze-drying cylinder body is located at the upper end of the discharge port with a spring bracket and the lower end with a rotating bracket. connected, the other end of the discharge chute passes through the discharge port and the opening in turn and is located inside the guide cover on the upper side of the drum body, the discharge A roller assembly is fixedly arranged at the lower end of the material trough relative to the circular wave guide rail. The roller assembly includes a roller frame and a roller. The outer wall of the drum body is slidingly connected, a roller is arranged on the lower side of the roller frame and the roller rolls on the circular wave guide rail; the feeding pipe is arranged on the side of the freeze-drying cylinder body away from the discharge assembly 1. The feed pipe runs through the freeze-drying cylinder body and the shroud sequentially from top to bottom and is located in the drum body.

For further optimization, several support legs are fixedly arranged at the lower end of the outer wall of the freeze-drying cylinder body, and the whole freeze-drying system is supported on the ground through the support legs.

As a further optimization, the diameter of the first pulley is smaller than the diameter of the second pulley.

As a further optimization, the drive motor is fixedly arranged on the bottom surface of the installation plate through an "L"-shaped bracket.

For further optimization, a circular rotating groove is set on the top of the support plate, the roller body is snapped into the circular rotating groove and the outer wall of the roller body is rotationally connected with the inner wall of the circular rotating groove, so that the bottom surface of the roller body and the inner wall of the circular rotating groove are rotatably connected. The top surface of the support plate is slidably connected.

As a further optimization, the center axes of the support plate, the drum body, the drum shaft, the annular wave guide rail and the wind deflector are on a straight line.

As a further optimization, the heating component is a disc-shaped heating core, the outer wall of which is fixedly connected with the inner wall of the freeze-drying cylinder body.

For further optimization, the outer wall of the drum body is fixedly sleeved with a sealed bearing, and the outer wall of the sealed bearing is fixedly connected with the inner wall of the freeze-drying drum body, and the relative rotation connection between the drum body and the freeze-drying drum body is realized through the sealed bearing; There are 2 to 4 bearings.

For further optimization, an annular chute is provided on the top surface of the drum body, and the cross-section of the annular chute is an inverted "T" shape, and an annular slider is fixedly arranged on the bottom of the shroud corresponding to the annular chute and the The annular slider is incompletely annular (that is, no slider is provided at the opening), the annular slider is snapped into the annular chute and is slidably connected with the annular chute, and the annular slider and the annular chute Realize the sliding connection between the shroud and the drum body.

For further optimization, the discharge chute is rotatably connected with the rotatable support through a bearing seat and a rotatable shaft.

For further optimization, the discharge chute includes a straight trough section and a funnel section, the funnel section is located inside the shroud on the upper side of the drum body, one end of the straight trough section is fixedly connected to the funnel section, The other end passes through the opening and the discharge port in turn and is connected with the spring support and the rotating support; the end of the funnel section away from the straight trough section is provided with an inclined baffle.

For further optimization, thermal insulation blocks are filled between the freeze-drying cylinder body and the drum body, and between the freeze-drying cylinder body and the air deflector, so as to avoid the heat from the outer wall of the freeze-drying cylinder body from interfering with the inside of the cylinder body. The heat is exchanged to achieve heat preservation for the internal cavity.

A kind of preparation method of young ginger freeze-dried sheet, adopt above-mentioned system:

First, start the driving motor, so that the motor shaft rotates slowly, thereby driving the drum body and fan blades to rotate slowly, and at the same time, the cold flow gas in a low-temperature saturated state is introduced through the air inlet pipe, so that the entire drum body cavity is kept at a lower temperature environment Next; then, add the ginger slices that have been sliced and pre-frozen into the cavity of the drum body through the feed pipe, and keep warm for a period of time in the low temperature environment of the drum body; then, increase the speed of the drive motor and start the heating component at the same time The cold flow gas in the low-temperature saturated state is fed in. After being heated by the heating element, the cold flow gas becomes unsaturated cold air, and enters the cavity of the drum body through the high-speed rotating fan blades, fan blade openings and air holes. Ginger slices are freeze-dried (because the unsaturated gas is in a saturated state, it will absorb a large amount of water vapor of the young ginger slices to make its relative humidity reach 100%, so the efficiency of freeze-drying using unsaturated cold gas is higher and the effect is better ); during the freeze-drying process, the young ginger slices passing through the fan blade mouth will be blown up by high-speed air, and then flipped by the synchronously rotating ribs to ensure the uniformity of freeze-drying; when the young ginger slices are freeze-dried, due to their The weight is reduced due to freeze-drying and water loss. When passing through the fan blade mouth, it is blown to the upper end of the drum body by the action of cold air, and then falls into the discharge chute. Because the roller is driven by the circular wave guide rail, it continuously moves up and down, and cooperates with the return spring. The pulling force causes the discharge trough to form a small angle and repeatedly deflects, so that the freeze-dried ginger slices are shaken out of the freeze-drying cylinder body, and the collection of the ginger slices is completed, preventing the freeze-dried ginger slices from continuing to be processed in the device. Freeze dried.

For further optimization, the thickness of the ginger slices is 2-4mm; the pre-freezing temperature is -30°C--18°C, and the pre-freezing time is not less than 2 hours.

For further optimization, cold air with a temperature of -30°C to -20°C is selected as the cold flow gas.

The present invention has following technical effect:

The present application realizes the dynamic freeze-drying of young ginger slices through the cooperative cooperation of various parts, that is, the cooperation between the support assembly, the blower assembly, the heating assembly, the drum assembly, the shroud, and the discharge assembly (i.e., realizes the young ginger slices during the freeze-drying process). Flipping of the ginger slices) makes the ginger slices not easy to agglomerate due to water crystallization, thereby improving the appearance quality of the freeze-dried ginger slices; at the same time, the device fully contacts the ginger slices through unsaturated cold flow gas, In this way, the moisture inside the young ginger slices is quickly taken away, and the freeze-drying efficiency is greatly improved; the device sets the heating part before the freeze-drying air (that is, the cold flow gas) enters the freeze-drying part (that is, the drum assembly), and through the saturated The cold air is heated so that the heated cold air is in full contact with the ginger slices, ensuring that the ginger slices are heated evenly and avoiding the influence of local overheating. At the same time, the cold air circulates from a saturated state to an unsaturated state to a saturated state. It can further absorb the water vapor inside the ginger slices, improve the freeze-drying efficiency and freeze-drying quality; through the cooperation of various components, this application can carry out wind sieving for ginger slices of different sizes, sizes, thicknesses and water contents. In this way, the freeze-dried ginger slices are separated from the freeze-drying tube body in time during the freeze-drying process, and the fully freeze-dried and insufficiently freeze-dried ginger slices are kept in the freeze-drying tube body at the same time, which affects the freeze-drying quality and freeze-drying quality. efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the freeze-dried tablet preparation system in the embodiment of the present invention.

Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

FIG. 3 is a partially enlarged view along the direction B of FIG. 2 .

FIG. 4 is a partially enlarged view along the direction C of FIG. 2 .

FIG. 5 is a partial enlarged view along the direction D of FIG. 2 .

Fig. 6 is a schematic structural view of the support assembly of the freeze-dried tablet preparation system in the embodiment of the present invention.

Fig. 7 is a schematic structural view of the drum body of the freeze-dried tablet preparation system in the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a discharge chute of the freeze-dried tablet preparation system in the embodiment of the present invention.

Among them, 1. The body of the freeze-drying cylinder; 11. The air inlet pipe; 12. The discharge port; 13. The spring bracket; 14. The rotating bracket; 15. The supporting leg; 2. The supporting component; 21. The supporting plate; ; 212, fan blade opening; 213, circular rotating groove; 22, connecting rod; 23, mounting plate; 3, fan assembly; 31, driving motor; 330, transmission belt; 34, fan blade; 4, drum assembly; 41, drum body; 410, sealed bearing; 411, air hole; 412, annular chute; 42, drum shaft; 43, second pulley; 44. Fins; 45. Annular wave guide rail; 5. Heating components; 6. Shroud; 61. Opening; 62. Air outlet pipe; 63. Ring slider; 711, straight trough section; 712, funnel section; 7120, inclined baffle plate; 713, bearing seat; 714, rotating shaft; 72, return spring; 73, roller assembly; 731, roller frame; 732, roller; 8, feed Tube.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Example:

As shown in Figures 1 to 8, a system for preparing freeze-dried ginger slices is characterized in that it includes a freeze-drying cylinder body 1, a support assembly 2, a fan assembly 3, a heating component 5, a drum assembly 4, a shroud 6, The discharge assembly 7 and the feed pipe 8; the freeze-drying cylinder body 1 is a cylindrical structure and its bottom is set in a funnel shape, the inside of the freeze-drying cylinder body 1 is hollow and the bottom is connected to the air inlet pipe 11; the support assembly 2 is arranged on the freeze-drying cylinder The body 1 includes a support plate 21, a connecting rod 22 and a mounting plate 23. The outer wall of the support plate 21 is fixedly connected to the inner wall of the freeze-drying cylinder body 1 and their central axes are collinear. A shaft hole 211 is opened in the middle of the support plate 21 and the shaft hole A blade opening 212 is provided on one side of the 211, the bottom surface of the support plate 21 corresponds to the blade opening 211 and several connecting rods 22 are evenly arranged around the central axis of the blade opening 212, and the end of the connecting rod 22 away from the support plate 21 is fixedly connected to a mounting plate 23; The fan assembly 3 is provided with the bottom surface of the installation disk 23, including a drive motor 31, a motor shaft 32, a first pulley 33 and fan blades 34, and the drive motor 31 is fixed on the bottom surface of the installation disk 23 through an "L"-shaped bracket 310 and the drive motor 31 outputs One end is fixedly connected with a motor shaft 32, and the end of the motor shaft 32 away from the drive motor 31 runs through the mounting plate 23 and the corresponding fan blade opening 212 is fixedly socketed with a fan blade 34, and the outer wall of the motor shaft 32 between the mounting plate 23 and the fan blade 34 is fixed. The first pulley 33 is sleeved; the heating component 5 is arranged in the freeze-drying cylinder body 1 on the lower side of the drive motor 31; Wheel 43, ribs 44 and annular wave guide rail 45, the top of the drum body 41 has no cover, and its bottom surface is slidably connected with the support disc 21 (that is, the drum body 41 can produce the rotation of the central axis of the drum body 41 relative to the support disc 21), and the drum A roller shaft 42 is fixedly arranged in the middle part of the bottom surface of the body 41. The end of the roller shaft 42 away from the roller body 41 passes through the shaft hole 211 and is fixedly sleeved on the outer wall of the lower side of the support plate 21 with the second pulley 43. The second pulley 43 is connected to the first pulley 43. The belt pulley 33 is connected by a transmission belt 330. The bottom surface of the drum body 41 and the central axis are uniformly provided with some air holes 411, and some ribs 44 are fixedly arranged on the surface of the bottom surface of the drum body 41 and the central axis (and the ribs 44 and the air holes 411 do not interfere with each other. ), the cylinder body 41 and the freeze-drying cylinder body 1 are relatively rotationally connected, and an annular wave guide rail 45 is fixedly arranged on the outer wall of the upper side of the cylinder body 41; The drum body 41 is slidingly connected (that is, the drum body 41 can produce a rotation of the central axis of the drum body 41 relative to the wind deflector 6), and an opening 61 is arranged on the side wall of the wind deflector 6, and an air outlet is arranged on the top of the wind deflector 6. The pipe 62 and the air outlet pipe 62 run through the top of the freeze-drying cylinder body 1; a discharge port 12 is provided corresponding to the opening 61 on one side of the freeze-drying cylinder body 1 outer wall, and a discharge assembly 7 is arranged at the discharge port 12, and the discharge assembly 7 includes a discharge Groove 71, return spring 72 and roller assembly 73, the outer wall of freeze-drying cylinder body 1 is located at the discharge port 12 The upper end is provided with a spring support 13, and the lower end is provided with a rotating support 14. The upper side of one end of the discharge chute 71 is connected with the spring support 13 through the return spring 72, and the lower side is connected with the rotating support 14 through the bearing seat 713 and the rotating shaft 714. The other end of the trough 71 runs through the discharge port 12 and the opening 61 in turn and is located inside the shroud 6 on the upper side of the drum body 41. The lower end of the chute 71 is fixedly arranged with a roller assembly 73 relative to the annular wave guide rail 45. The roller assembly 73 includes The roller frame 731 and the roller 732, the roller frame 731 is fixedly connected with the lower side of the discharge trough 71 and the side wall of the roller frame 71 is slidably connected with the outer wall of the drum body 41, and a roller 732 is arranged on the lower side of the roller frame 731 and the roller 732 is arranged on the ring wave. Roll on the guide rail 45; the feeding tube 8 is set on the side of the freeze-drying cylinder body 1 away from the discharge assembly 7, and the feeding tube 8 runs through the freeze-drying cylinder body 1 and the shroud 6 from top to bottom in sequence and is located on the drum body 41 Inside.

The lower end of the outer wall of the freeze-drying cylinder body 1 is fixed with a number of support legs 15, through which the entire freeze-drying system is supported on the ground; the diameter of the first pulley 33 is smaller than that of the second pulley 43.

A circular turning groove 213 is provided on the top of the support plate 21, and the cylinder body 41 is snapped into the circular turning groove 213 and the outer wall of the cylinder body 41 is rotationally connected with the inner wall of the circular turning groove 213 (it can be realized by setting balls, which is known in the art) common sense, the specific embodiments of the present application will not be discussed too much), so as to realize the sliding connection between the bottom surface of the drum body 41 and the top surface of the support plate 21; The central axis of 6 is on a straight line; the heating part 5 is a disc-shaped heating core, the outer wall of which is fixedly connected with the inner wall of the freeze-drying cylinder body 1 . The outer wall of the cylinder body 41 is fixedly sleeved with the sealed bearing 410, the outer wall of the sealed bearing 410 is fixedly connected with the inner wall of the freeze-drying cylinder body 1, and the relative rotation connection between the cylinder body 41 and the freeze-dried cylinder body 1 is realized through the sealed bearing 410; the sealed bearing 410 is 2～ 4, 2 as shown in Figure 2. An annular chute 412 is arranged on the top surface of the drum body 41, and the cross section of the annular chute 412 is an inverted "T" shape, and an annular slider 63 is fixedly arranged on the bottom of the shroud 6 corresponding to the annular chute 412, and the annular slider 63 is incomplete. Annular (that is, there is no slider at the opening 61), the annular slider 63 is inserted into the annular chute 412 and is slidably connected with the annular chute 412, and the air deflector 6 and the roller are realized through the annular slider 63 and the annular chute 412. Sliding connection between bodies 41 .

The outlet chute 71 includes a straight trough section 711 and a funnel section 712. The funnel section 712 is located inside the shroud 6 on the upper side of the drum body 41. One end of the straight trough section 711 is fixedly connected to the funnel section 712, and the other end passes through the opening 61 and the outlet in turn. The feed port 12 is connected with the spring support 13 and the rotating support 14; the end of the funnel section 712 away from the straight trough section 711 is provided with an inclined baffle 7120 .

Heat insulation blocks are filled between the freeze-drying cylinder body 1 and the drum body 41, and between the freeze-drying cylinder body 1 and the shroud 6, so as to avoid heat exchange between the heat on the outer wall of the freeze-drying cylinder body 1 and the heat inside the drum body 41, Thereby, the heat preservation effect is realized on the inner cavity.

A kind of preparation method of ziger freeze-dried sheet, adopt above-mentioned system, it is characterized in that:

First start the driving motor 31, so that the motor shaft 32 rotates slowly, thereby driving the drum body 41 and the fan blade 34 to rotate slowly (the fan blade 34 rotates slowly to realize that the air in the lower part of the freeze-drying cylinder body 1 is drawn to the drum body through the fan blade opening 212 41, the drum body 41 slowly rotates to realize the air holes 411 in different directions communicate with the fan blade openings 212 to ensure the uniformity of ventilation), and at the same time, the cold flow gas in the low-temperature saturated state is introduced through the air inlet pipe 11, so that the entire drum body 41 cavity Keep in a lower temperature environment; then, the sliced ginger slices that are completed and pre-frozen are completed are added into the drum body 41 cavity through the feed pipe 8, and are kept warm for a period of time under the low temperature environment of the drum body 41 (this heat preservation The time is obtained according to the actual process conditions, is common knowledge in the art, and the purpose is to stabilize the overall temperature of the ginger slices at the temperature required); The cold flow gas in the low temperature saturated state, the cold flow gas becomes unsaturated cold air after being heated by the heating element 5, and enters the cavity of the drum body 41 through the high-speed rotating fan blade 34, the fan blade opening 212 and the air hole 411. The young ginger slices in 41 are freeze-dried (because the unsaturated gas reaches a saturated state, it will absorb a large amount of water vapor of the young ginger slices to make its relative humidity reach 100%, so it is more efficient to use the unsaturated cold gas to carry out freeze-drying , better effect); in the freeze-drying process, the young ginger slices through the fan blade mouth 212 will be blown up by high-speed air, and then flipped by the synchronously rotating ribs 44 to ensure the uniformity of freeze-drying; when the young ginger slices are finished After freeze-drying, because its freeze-drying loses water and causes weight reduction, is blown to the upper end of cylinder body 41 by the effect of cold air when passing fan blade opening 212, thereby falls in the discharge trough 71 (frozen sliced ginger after being blown up) If not falling into the discharge trough 71, then directly fall to the top of the bottom surface of the drum body 41, and wait for the next time to be blown up when passing through the fan blade mouth 212 until falling into the discharge trough 71; 712 enlarges, and is convenient to young ginger freeze-drying section and falls into discharge chute 71, and this is the conventional design of those skilled in the art, so do not discuss too much in the specific embodiment of the present application), because roller 732 is driven by annular wave guide rail 45 Continuously form up and down toggling, cooperate with the pulling force of the return spring 72 to cause the discharge chute 71 to form a small angle and repeatedly deflect, so that the freeze-dried ginger slices will be shaken out of the freeze-drying cylinder body 1. Complete the collection of the ginger slices, Avoid freeze-dried ginger slices to continue freeze-drying in the device.

The thickness of ginger slices is 2-4mm; the pre-freezing temperature is -30°C--18°C, and the pre-freezing time is not less than 2 hours; the cold flow gas is cold air with a temperature of -30°C--20°C.

In describing the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top ", "inner", "front", "central", "both ends" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features, Thus, a feature defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

In the present invention, terms such as "installation", "installation", "connection", "fixation" and "rotation connection" should be interpreted in a broad sense unless otherwise clearly specified and limited, for example, it may be a fixed connection, or It can be a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be the internal communication of two components or the interaction relationship between two components Unless otherwise clearly defined, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Claims

A system for preparing freeze-dried ginger slices, characterized in that it includes a freeze-drying cylinder body (1), a support assembly (2), a fan assembly (3), a heating component (5), a drum assembly (4), and a shroud (6), discharge assembly (7) and feeding pipe (8); the freeze-drying cylinder body (1) is a cylindrical structure and its bottom is arranged as a funnel, and the inside of the freeze-drying cylinder body (1) is hollow And the bottom is connected to the air inlet pipe (11); the support assembly (2) is arranged in the freeze-drying cylinder body (1), including a support plate (21), a connecting rod (22) and a mounting plate (23). The outer wall of the support plate (21) is fixedly connected with the inner wall of the freeze-drying cylinder body (1) and their central axes are collinear, and an axis hole (211) is opened in the middle of the support plate (21), and the axis hole (211 ) is provided with a blade opening (212) on one side, and the bottom surface of the support plate (21) corresponds to the blade opening (212) and several connecting rods (22) are evenly arranged around the central axis of the blade opening (212). One end of the connecting rod (22) away from the support plate (21) is fixedly connected to a mounting plate (23); the fan assembly (3) includes a drive motor (31), a motor shaft (32), a first pulley (33) ) and fan blades (34), the drive motor (31) is fixedly arranged on the bottom surface of the mounting plate (23) and the output end of the drive motor (31) is fixedly connected to a motor shaft (32), and the motor shaft (32) The end away from the drive motor (31) passes through the mounting plate (23) and is fixedly sleeved with a fan blade (34) corresponding to the fan blade opening (212), the mounting plate (23) and the fan blade The outer wall of the motor shaft (32) between (34) is fixedly sleeved with the first pulley (33); (1); the drum assembly (4) is arranged on the upper side of the support plate (21), including a drum body (41), a drum shaft (42), a second pulley (43), ribs (44 ) and an annular wave guide rail (45), the top of the drum body (41) has no cover, and its bottom surface is slidably connected with the support plate (21), and a drum shaft (42) is fixedly arranged in the middle of the bottom surface of the drum body (41) The end of the drum shaft (42) away from the drum body (41) passes through the shaft hole (211) and is fixedly sleeved on the outer wall of the lower side of the support plate (21) to the second pulley (43), The second pulley (43) is connected to the first pulley (33) through a transmission belt (330), and a number of air holes (411) are uniformly opened on the bottom surface of the drum body (41) and around its central axis. (41) The upper surface of the bottom surface is fixedly provided with several ribs (44) around the central axis, and the relative rotation connection between the cylinder body (41) and the freeze-drying cylinder body (1) is fixed. An annular wave guide rail (45) is fixedly arranged on the side outer wall; the guide cover (6) is fixedly arranged on the inner upper side of the freeze-drying drum body (1), its bottom and the drum body (41 ) is slidingly connected and an opening (61) is set on one side wall of the wind deflector (6), an air outlet pipe (62) is arranged on the top of the wind deflector (6), and the air outlet pipe (62) runs through The top of the freeze-drying cylinder body (1); one side of the outer wall of the freeze-drying cylinder body (1) is provided with a discharge port (12) corresponding to the opening (61), and the discharge port (12) is provided with an outlet A material assembly (7), the discharge assembly (7) includes a discharge chute (71), a return spring (72) and a roller assembly (73), the outer wall of the freeze-drying cylinder body (1) is located on the discharge A spring support (13) is provided at the upper end of the mouth (12), and a rotating support (14) is provided at the lower end. The other end of the discharge chute (71) passes through the discharge port (12) and the opening (61) in sequence and is located on the guide on the upper side of the drum body (41). Inside the flow cover (6), a roller assembly (73) is fixedly arranged at the lower end of the discharge chute (71) relative to the annular wave guide rail (45), and the roller assembly (73) includes a roller frame (731) and a roller (732), the roller frame (731) is fixedly connected to the lower side of the discharge chute (71) and one side wall of the roller frame (731) is slidingly connected to the outer wall of the drum body (41), the roller frame (731) a roller (732) is arranged on the lower side, and the roller (732) rolls on the annular wave guide rail (45); One side of the discharge assembly (7) and the feed pipe (8) pass through the freeze-drying cylinder body (1) and the shroud (6) from top to bottom and are located in the drum body (41) .
The preparation system according to claim 1, characterized in that: several support legs (15) are fixedly arranged at the lower end of the outer wall of the freeze-drying cylinder body (1).
The preparation system according to claim 1 or 2, characterized in that: the driving motor (31) is fixedly arranged on the bottom surface of the mounting plate (23) through an "L"-shaped bracket (310).
The preparation system according to claim 3, characterized in that: a circular rotating groove (213) is opened on the top of the support plate (21), and the drum body (41) is snapped into the circular rotating groove (213) The inner and outer wall of the drum body (41) is rotatably connected with the inner wall of the circular rotating groove (213).
Adopt the method for preparing system as claimed in claim 1, it is characterized in that:

First start the driving motor (31), so that the motor shaft (32) rotates slowly, thereby driving the drum body (41) and the fan blades (34) to rotate slowly, and at the same time, the cold flow in a low-temperature saturated state is introduced through the air inlet pipe (11) gas, so that the whole drum body (41) chamber remains at a lower temperature environment; then, the sliced ginger slices that are completed and pre-frozen are completed are added to the drum body (41) chamber through the feed pipe (8), Keep warm for a period of time in the low temperature environment of the drum body (41); then, increase the rotating speed of the driving motor (31) and start the heating element (5) at the same time, and continuously feed the cold flow gas in a low-temperature saturated state, and the cold flow gas is heated by the heating element Become unsaturated cold state air afterward, and enter in the cylinder body (41) cavity by the fan blade (34) of high-speed rotation, fan blade opening (212) and air hole (411), to the ginger slices in the cylinder body (41) Freeze-drying; in the freeze-drying process, the young ginger slices passing through the fan blade mouth (212) will be blown up by high-speed air, and then turned over by the synchronously rotating ribs (44), ensuring the uniformity of freeze-drying; when young ginger After the sheet is freeze-dried, due to the loss of water during freeze-drying, the weight is reduced. When passing through the fan blade opening (212), it is blown to the upper end of the drum body (41) by the action of cold air, thereby falling into the discharge chute (71). (732) under the drive of ring-shaped wave guide rail (45) constantly forms up and down to toggle, cooperates the pulling force action of return spring (72) to cause discharge chute (71) to form small angle to deflect repeatedly, thereby will complete the lyophilized young ginger piece Shake off the main body (1) of the freeze-drying cylinder, complete the collection of the young ginger slices, and prevent the freeze-dried young ginger slices from continuing to be freeze-dried in the system.