Device and method for preparing powdery crystalline maltitol

Abstract

The invention belongs to the technical field of maltitol preparation, and relates to a device and method for preparing powdery crystallized maltitol, the device comprises a crystallizing tank, a drying tank and a crushing bin, a first joint is arranged between the crystallizing tank and the drying tank for vertical communication, and a second joint is arranged between the drying tank and the crushing bin for vertical communication; the crystallizing tank is provided with a liquid discharging pipe convenient for discharging mother liquid, the first connector is provided with a crystal discharging electromagnetic valve for controlling maltitol moist sugar to be discharged to the drying tank for drying, and the second connector is provided with a discharging electromagnetic valve for controlling maltitol sugar blocks to be discharged to the crushing bin for crushing; and a material collecting drawer for collecting powdery crystal maltitol is arranged right below the crushing bin. According to the invention, crystallization, drying and crushing equipment for preparing maltitol crystals are integrated together, so that the transfer link and repeated operation of maltitol crystal materials are reduced, the working efficiency is improved, and the integrated equipment is beneficial to reducing the equipment cost and maintenance difficulty and improving the production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of maltitol preparation, and particularly relates to a device and a method for preparing powdered crystalline maltitol. Background Art

[0002] Maltitol is a kind of carbohydrate, which is made by the action of malt containing amylase on starch. Powdered crystalline maltitol has the characteristics of low calories, non-caries, friendly to diabetics, promoting intestinal health, good stability and processing resistance in industrial production. Therefore, with the continuous advancement of science and technology and the increasing diversification of consumer demand, the application and production demand of powdered crystalline maltitol is increasing.

[0003] In the process of preparing powdered crystalline maltitol, it mainly undergoes three processes: crystallization, drying and crushing. The existing preparation device can realize the centralized processing of the two processes of crystallization and drying, and then transfer the dried maltitol material to another separate crushing equipment for crushing to obtain powdered crystalline maltitol; or the crystallization equipment crystallizes the maltose solution, and then transfers the obtained maltitol to another separate drying equipment for drying and crushing equipment for crushing to obtain powdered crystalline maltitol. The circulation of maltitol crystal materials between different equipment not only increases the handling equipment and costs, but also makes the production efficiency low. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device and method for preparing powdered crystalline maltitol, which integrates the crystallization, drying and crushing equipment for preparing maltitol crystals, reduces the transportation links and repeated operations of maltitol crystal materials, improves work efficiency, and the integrated equipment is conducive to reducing equipment costs and maintenance difficulties, and improving production efficiency.

[0005] The present invention is implemented in this way, providing a preparation device for powdered crystalline maltitol, including a crystallization tank, a drying tank and a crushing bin, after the maltitol solution is crystallized in the crystallization tank, maltitol treacle and mother liquor are obtained respectively, the drying tank is used to dry the inflowing maltitol treacle to obtain maltitol lumps, and the crushing bin is used to crush the inflowing maltitol lumps to obtain the required powdered crystalline maltitol. A first joint is provided between the crystallization tank and the drying tank to communicate up and down, a second joint is provided between the drying tank and the crushing bin to communicate up and down, a drain pipe is provided on the crystallization tank to facilitate the discharge of the mother liquor, a crystal discharge solenoid valve for controlling the discharge of maltitol treacle is provided on the first joint, and a material discharge solenoid valve for controlling the discharge of maltitol lumps is provided on the second joint; and a collection drawer for collecting powdered crystalline maltitol is provided directly below the crushing bin.

[0006] Furthermore, a filter screen for filtering the mother liquid is installed in the liquid discharge pipe, and a liquid discharge solenoid valve for controlling the discharge of the mother liquid is arranged on the liquid discharge pipe.

[0007] Furthermore, a stirring component is provided in the crystallization tank (2), and the stirring component comprises: a stirring shaft installed inside the crystallization tank, a stirring rod provided on the stirring shaft, and a driving assembly for driving the stirring rod to rotate.

[0008] Furthermore, the stirring shaft includes: a first stirring shaft and a second stirring shaft installed inside the crystallization tank; the stirring rod includes: a plurality of first stirring rods arranged on the first stirring shaft, and a plurality of second stirring rods arranged on the second stirring shaft; the driving assembly is used to drive the first stirring rod and the second stirring rod to rotate.

[0009] The stirring component also includes: a support frame arranged on the outer wall of the crystallization tank, the second stirring shaft is installed on the support frame and passes through the first stirring shaft, and the driving assembly includes: a stirring motor arranged on the support frame, a No. 1 bevel gear mounted on the output shaft of the stirring motor, a No. 2 bevel gear mounted on the second stirring shaft, and a No. 3 bevel gear mounted on the top end of the first stirring shaft; wherein the No. 2 bevel gear and the No. 3 bevel gear are both meshed with the No. 1 bevel gear; the stirring motor is used to control the rotation of the No. 1 bevel gear, driving the No. 2 bevel gear and the No. 3 bevel gear to rotate simultaneously, so as to control the rotation of the first stirring rod and the second stirring rod.

[0010] Furthermore, the drying tank is also provided with a hot air drying component, which includes: a hot air blower installed on the outer wall of the drying tank, an air supply shaft installed inside the drying tank and hollow inside, a turning blade arranged on the outer wall of the air supply shaft, and a rotating operation component, the rotating operation component is used to drive the air supply shaft and the turning blade to rotate so as to turn the maltitol treacle; the hot air drying component also includes: a rotary joint, the air supply pipe end of the hot air blower is connected to the top end of the air supply shaft through the rotary joint, and a plurality of exhaust holes are opened on the shaft surface of the air supply shaft.

[0011] Furthermore, the rotating operation component includes: a driving motor installed on the outer wall of the drying tank, a driving gear arranged on the output shaft of the driving motor, and a transmission gear arranged on the air supply shaft and meshing with the driving gear. The driving motor is used to control the rotation of the driving gear, drive the transmission gear to rotate, and thus drive the air supply shaft and the material turning blade to rotate.

[0012] Furthermore, a crushing component is also provided in the crushing bin, and the crushing component includes: at least one pair of mutually meshing crushing rollers installed in the crushing bin, a worm gear installed on each crushing roller, a crushing motor installed on the outer wall of the crushing bin, and a worm arranged on the output shaft of the crushing motor. The crushing motor is used to control the rotation of the worm, drive the corresponding worm gear to rotate, and drive the crushing rollers to rotate relatively, so as to crush the maltitol sugar blocks.

[0013] Furthermore, the preparation device also includes: a collecting box, which is connected to the bottom of the crushing bin, and a vibrating screen and a rolling roller are installed inside the collecting box. The vibrating screen is located above the aggregate drawer, and the rolling roller is arranged on the upper part of the vibrating screen and located in the lower end area of ​​the vibrating screen. The rolling roller is used to re-crush and crush the large-particle maltitol crystals located above the vibrating screen.

[0014] The present invention is achieved in this way. It also provides a method for preparing powdered crystalline maltitol, which uses the above-mentioned preparation device for powdered crystalline maltitol. The preparation method comprises the following steps: S1, crystallization: the maltitol solution to be crystallized is transported to a crystallization tank (2) for crystallization treatment to obtain maltitol sucrose and mother liquor; S2, solid-liquid separation: the mother liquor is discharged to the outside through the liquid discharge pipe (34), and then the crystal discharge solenoid valve (35) is opened to discharge the maltitol treacle through the first joint (32) into the drying tank (13); S3, drying: the drying tank (13) dries the maltitol sugar to obtain maltitol sugar blocks; S4, crushing: the discharge solenoid valve (36) is opened, and the maltitol lumps are discharged into the crushing bin (21) through the second joint (33). The crushing bin (21) fully crushes the maltitol lumps, and the desired powdered crystalline maltitol is collected in the collecting drawer (29).

[0015] Compared with the prior art, the present invention provides a device and method for preparing powdered crystalline maltitol, wherein the device comprises a crystallization tank, a drying tank and a crushing bin, wherein a first joint is provided between the crystallization tank and the drying tank for vertical communication, and a second joint is provided between the drying tank and the crushing bin for vertical communication, a crystal discharge solenoid valve for controlling the discharge of maltitol tidal sugar is provided on the first joint, and a material discharge solenoid valve for controlling the discharge of maltitol lumps is provided on the second joint; and a material collection drawer for collecting powdered crystalline maltitol is provided directly below the crushing bin. The present invention centrally and integrally processes the crystallization, drying and crushing processes in the preparation process of powdered crystalline maltitol, and there is no need to transfer the maltitol crystal material to other separate preparation equipment, thereby reducing the transfer and repeated operation of the maltitol crystal material, thereby improving the preparation efficiency of powdered crystalline maltitol. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a device for preparing powdered crystalline maltitol of the present invention; Figure 2 for Figure 1 A schematic cross-sectional view of a middle crystallization tank; Figure 3 for Figure 1 Schematic diagram of the internal structure of the middle crystallization tank; Figure 4 for Figure 1 Schematic diagram of the drying tank; Figure 5 for Figure 4 A three-dimensional schematic diagram of the internal structure of the middle drying tank; Figure 6 for Figure 1 A three-dimensional schematic diagram of the assembly status of the middle crushing bin and the collection box; Figure 7 for Figure 6 Schematic diagram of the internal structure of the middle crushing bin and collection box.

[0017] In the figure: 1. counterweight base; 2. crystallization tank; 3. first stirring shaft; 4. support frame; 5. second stirring shaft; 6. first stirring rod; 7. second stirring rod; 8. spiral stirring blade; 9. stirring motor; 10. No. 1 bevel gear; 11. No. 2 bevel gear; 12. No. 3 bevel gear; 13. drying tank; 14. air supply shaft; 15. turning blade; 16. hot air blower; 17. drive motor; 18. drive gear; 19. transmission gear; 20. rotary joint; 21. crushing bin; 22. collection box; 23. vibrating screen; 24. rolling roller; 25. crushing roller; 26. worm gear; 27. crushing motor; 28. worm; 29. ​​collection drawer; 30. bearing column; 31. filter screen; 32. first joint; 33. second joint; 34. drain pipe; 35. crystal discharge solenoid valve; 36. discharge solenoid valve; 37. discharge solenoid valve. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Please also refer to Figures 1 to 3As shown, a preferred embodiment of the preparation device of powdered crystalline maltitol provided by the present invention comprises a crystallization tank 2, a drying tank 13 and a crushing bin 21. After the maltitol solution is crystallized in the crystallization tank 2, maltitol molasses and mother liquor are obtained respectively, the drying tank 13 is used to dry the inflowing maltitol molasses to obtain maltitol lumps, and the crushing bin 21 is used to crush the inflowing maltitol lumps to obtain the desired powdered crystalline maltitol.

[0020] A first joint 32 is provided between the crystallization tank 2 and the drying tank 13 for vertical communication, and a second joint 33 is provided between the drying tank 13 and the crushing bin 21 for vertical communication. A liquid discharge pipe 34 is provided on the crystallization tank 2 for facilitating the discharge of mother liquor, a crystal discharge solenoid valve 35 for controlling the discharge of maltitol tidbits is provided on the first joint 32, and a material discharge solenoid valve for controlling the discharge of maltitol lumps is provided on the second joint 33. A collection drawer 29 for collecting powdered crystallized maltitol is provided directly below the crushing bin 21.

[0021] It should be noted that the first joint 32 can be configured as an elbow joint, specifically, an oblique transfer joint, and the second joint 33 can be configured as a straight joint, and the shape of the first joint 32 or the second joint 33 is not limited here. In this embodiment, the crystallization tank 2 is directly connected to the drying tank 13 up and down through the first joint 32, and the drying tank 13 is directly connected to the crushing bin 21 up and down through the second joint 33, and the crystallization tank 2 is provided with a drain pipe 34, a crystal discharge solenoid valve 35, a discharge solenoid valve 36, and a collection drawer 29 directly below the crushing bin 21. The crystallization device, the drying device and the crushing device are integrated, that is, the maltitol solution can be crystallized, dried and crushed in sequence on one device, and finally the powdered crystalline maltitol is obtained. That is, the maltitol solution is first mixed and stirred on one device to fully crystallize to obtain maltitol saccharide and mother liquor; then the mother liquor is discharged to the outside, and the maltitol saccharide is dried; finally, the dried maltitol block is crushed to obtain the required powdered crystalline maltitol. During the entire preparation process of powdered crystalline maltitol, there is no need to transfer the maltitol crystal material to other separate preparation equipment, which reduces the transfer and repeated operation of the maltitol crystal material, thereby improving the preparation efficiency of powdered crystalline maltitol.

[0022] In the embodiment of the present disclosure, after the maltitol solution in the crystallizer 2 is fully stirred and crystallized, maltitol treacle and mother liquor are obtained. By providing a drain pipe 34 on the crystallizer 2 and providing a crystal discharge solenoid valve 35 on the first joint 32 connecting the crystallizer 2 and the drying tank 13, solid-liquid separation can be well achieved. Specifically, the drain pipe 34 and the crystal discharge solenoid valve 35 can be configured and installed at the bottom of the crystallizer 2, and the crystal discharge solenoid valve 35 can be located below the drain pipe 34. The crystal discharge solenoid valve 35 can control the maltitol treacle to flow into the drying tank 13.

[0023] In the embodiment of the present disclosure, in order to facilitate the discharge of the mother liquor to the outside and avoid the discharge of maltitol tidal sugar, a filter screen 31 can be installed in the drain pipe 34, and a drain solenoid valve 37 for controlling the discharge of the mother liquor is provided on the drain pipe 34. Among them, the filter screen 31 is adapted to the drain pipe 34, and the drain solenoid valve 37 can control the crystallized maltitol mother liquor to be discharged to the outside through the filter screen 31. In a specific embodiment, the drain solenoid valve 37 on the drain pipe 34 is opened, the crystallized mother liquor is discharged to the outside under the filtration of the filter screen 31, and the crystal discharge solenoid valve 35 is opened, so that the maltitol tidal sugar can flow into the drying tank 13.

[0024] In the embodiments of the present disclosure, in order to stably support the crystallization tank 2, the drying tank 13, and the crushing bin 21, the preparation device of powdered crystalline maltitol may further include: a counterweight base 1. In order to further stably support the crystallization tank 2, the preparation device of powdered crystalline maltitol may further include: a bearing column 30. Among them, the crystallization tank 2 and the counterweight base 1 are connected through the same bearing column 30, and specifically, the two ends of the bearing column 30 can be connected to the crystallization tank 2 and the counterweight base 1, respectively. In addition, in order to enable the maltitol solution to be transported to the crystallization tank 2, the crystallization tank 2 can be provided with a liquid inlet, specifically, an external delivery pump, and the maltitol solution can be input into the crystallization tank 2 through the liquid inlet.

[0025] In the embodiment of the present disclosure, a stirring component may be provided in the crystallizer 2, and the stirring component is used to mix and stir the maltitol solution transported to the crystallizer 2, so as to improve the uniformity of maltitol crystallization. The stirring component includes: a stirring shaft installed inside the crystallizer 2, a stirring rod provided on the stirring shaft, and a driving assembly for driving the stirring rod to rotate.

[0026] In an example of the present disclosure, the stirring shaft includes: a first stirring shaft 3 and a second stirring shaft 5 installed inside the crystallization tank 2. The stirring rod includes: a plurality of first stirring rods 6 arranged on the first stirring shaft 3, and a plurality of second stirring rods 7 arranged on the first stirring shaft 5. The driving assembly is used to drive the first stirring rod 6 and the second stirring rod 7 to rotate.

[0027] In the disclosed embodiment, the first stirring shaft 3 can be rotatably installed at the top center of the crystallizer 2, or at any position of the top, and can also be installed at any position inside the crystallizer 2. The first stirring shaft 3 can be configured as a hollow stirring shaft, or a hollow stirring shaft. The second stirring shaft 5 can be configured as a hollow stirring shaft, or a hollow stirring shaft, or a solid stirring shaft. A plurality of first stirring rods 6 can be welded to the first stirring shaft 3 and evenly distributed on the first stirring shaft 3. A plurality of second stirring rods 7 can be welded to the second stirring shaft 5 and evenly distributed on the second stirring shaft 5.

[0028] In an embodiment of the present disclosure, the stirring component may further include: a support frame 4 provided on the outer wall of the crystallization tank 2, and a second stirring shaft 5 installed on the support frame 4 and passing through the first stirring shaft 3. Specifically, the stirring component may include: a first stirring shaft 3 rotatably installed at the center of the top of the crystallization tank 2, a second stirring shaft 5 rotatably installed on the support frame 4 and passing through the first stirring shaft 3, a plurality of first stirring rods 6 welded on the first stirring shaft 3 and evenly distributed, and a plurality of second stirring rods 7 welded on the second stirring shaft 5 and evenly distributed. By providing the stirring component, the temperature of the maltitol solution is uniform, and thus sufficient crystallization is facilitated.

[0029] In an embodiment of the present disclosure, the first stirring rod 6 can be located above the second stirring rod 7, and the lower part of the second stirring shaft 5 can be provided with a stirring blade located in the bottom area of ​​the crystallization tank 2. The stirring blade can be configured as a spiral stirring blade 8. The spiral stirring blade 8 can stir the material accumulated in the bottom area of ​​the crystallization tank 2, thereby avoiding the maltitol solution from adhering to the bottom area of ​​the crystallization tank 2, causing waste of maltitol solution, and facilitating the cleaning of the crystallization tank 2.

[0030] In an embodiment of the present disclosure, the driving assembly may include: a stirring motor 9 arranged on the support frame 4, a first bevel gear 10 mounted on the output shaft of the stirring motor 9, a second bevel gear 11 mounted on the second stirring shaft 5, and a third bevel gear 12 mounted on the top of the first stirring shaft 3. Among them, the second bevel gear 11 and the third bevel gear 12 are both meshed with the first bevel gear 10. The stirring motor 9 is used to control the rotation of the first bevel gear 10, driving the second bevel gear 11 and the third bevel gear 12 to rotate simultaneously, so as to control the rotation of the first stirring rod 6 and the second stirring rod 7. The stirring motor 9 can be fixedly installed on the side wall of the support frame 4, and the second bevel gear 11 and the third bevel gear 12 can be fixedly mounted on the second stirring shaft 5 and the first stirring shaft 3 respectively. Specifically, the driving assembly may include: a stirring motor 9 fixedly mounted on the side wall of the support frame 4, a No. 1 bevel gear 10 fixedly mounted on the output shaft of the stirring motor 9, a No. 2 bevel gear 11 fixedly mounted on the upper part of the solid stirring shaft 5, and a No. 3 bevel gear 12 fixedly mounted on the top of the hollow stirring shaft 3. The output shaft of the stirring motor 9 passes through the support frame 4, and the No. 2 bevel gear 11 and the No. 3 bevel gear 12 are both meshed with the No. 1 bevel gear 10.

[0031] When the embodiment of the present disclosure is implemented, first, the number one bevel gear 10 is controlled to rotate by the stirring motor 9, and then the number two bevel gear 11 and the number three bevel gear 12 meshing with the number one bevel gear 10 rotate simultaneously, and then the first stirring rod 6 on the first stirring shaft 3 and the second stirring rod 7 on the second stirring shaft 5 rotate without interfering with each other, thereby enhancing the convection effect on the maltitol solution during the mixing process, facilitating sufficient mixing and stirring, thereby facilitating sufficient crystallization of the solution, and improving the crystallization effect and efficiency.

[0032] Please also refer to Figure 1 , 4As shown in Figure 5, in the disclosed embodiment and other possible embodiments, a hot air drying component is also provided on the drying tank 13. The hot air drying component is used to dry the maltitol treacle discharged into the drying tank 13 to obtain maltitol lumps. The hot air drying component may include: a hot air blower 16 installed on the outer wall of the drying tank 13, an air supply shaft 14 installed inside the drying tank 13 and hollow inside, a turning blade 15 arranged on the outer wall of the air supply shaft 14, and a rotating operating component, the rotating operating component is used to drive the air supply shaft 14 and the turning blade 15 to rotate, so as to turn the maltitol crystals. The air supply shaft 14 can be configured as a hollow air supply shaft, installed at the top center inside the drying tank 13, or rotatably installed inside the drying tank 13. The turning blade 15 can be configured as a double helix turning blade, and the turning blade 15 is welded on the outer wall of the air supply shaft 14. Specifically, the hot air drying tank 13 may include an air supply shaft 14 rotatably mounted in the drying tank 13, a material turning blade 15 welded to the outer wall of the air supply shaft 14, a hot air blower 16 fixedly mounted on the outer wall of the top of the drying tank 13, and a rotating operation component. The rotating operation component is used to drive the material turning blade 15 to rotate so as to turn the maltitol treacle.

[0033] In the embodiment of the present disclosure, the rotary operation assembly includes: a driving motor 17 mounted on the outer wall of the drying tank 13, a driving gear 18 arranged on the output shaft of the driving motor 17, and a transmission gear 19 arranged on the air supply shaft and meshing with the driving gear 18. The driving motor 17 is used to control the rotation of the driving gear 18, drive the transmission gear 19 to rotate, and drive the turning blade 15 to rotate. Specifically, the rotary control assembly may include: a driving motor 17 fixedly mounted on the outer wall of the top of the drying tank 13, a driving gear 18 fixedly mounted on the output shaft of the driving motor 17, and a transmission gear 19 fixedly mounted on the air supply shaft 14 and meshing with the driving gear 18, and the output shaft of the driving motor 17 passes through the top of the drying tank 13.

[0034] In the embodiment of the present disclosure, the hot air drying component further includes: a rotary joint 20. The air supply pipe end of the hot air blower 16 is connected to the top of the air supply shaft 14 through the rotary joint 20, and a plurality of exhaust holes are provided on the shaft surface of the air supply shaft 14. Specifically, the plurality of exhaust holes can be evenly distributed.

[0035] During the specific implementation of this embodiment, the maltitol treacle in the crystallizing tank 2 can enter the drying tank 13 from the first connecting pipe 32. At this time, the hot air is transported into the air supply shaft 14 through the hot air blower 16, and the air supply shaft 14 discharges the hot air into the drying tank 13. Specifically, the air can be discharged evenly into the drying tank 13 through the evenly distributed exhaust holes on the air supply shaft 14, and then the driving motor 17 controls the driving gear 18 to rotate, and then the transmission gear 19 meshing with the driving gear 18 drives the turning blade 15 on the air supply shaft 14 to rotate in the drying tank 13, and the maltitol treacle is fully turned over, so that the maltitol treacle can be heated evenly, achieving a fully even drying effect and improving the drying quality.

[0036] In the embodiment of the present disclosure, in order to further improve the drying quality of the maltitol crystals, a moisture removal pipe may be further provided on the drying tank 13 .

[0037] Please also refer to Figure 1 , 6 As shown in Figure 7, in the disclosed embodiment and other possible embodiments, a crushing component is further provided in the crushing bin 21. The crushing component is used to crush the maltitol lumps discharged into the crushing bin 21 to obtain the desired powdered crystalline maltitol. The crushing component may include: at least one pair of mutually meshing crushing rollers 25 installed in the crushing bin 21, a worm gear 26 installed on each crushing roller 25, a crushing motor 27 installed on the outer wall of the crushing bin 21, and a worm 28 arranged on the output shaft of the crushing motor 27 and respectively meshed with each worm gear 26. Among them, the crushing motor 27 is used to control the rotation of the worm 28, and the worm 28 is used to drive the corresponding worm gear 26 to rotate, so as to drive the crushing rollers 25 to rotate relatively, and crush the maltitol lumps.

[0038] In the embodiment of the present disclosure, the crushing component can be configured as at least one pair of crushing rollers 25 installed in the crushing bin 21, a worm gear 26 fixedly sleeved on the crushing rollers 25 in sequence, a crushing motor 27 fixedly installed on the front outer wall of the crushing bin 21, and a worm 28 fixedly sleeved on the output shaft of the crushing motor 27, wherein the worm 28 is meshed with the worm gear 26.

[0039] In the specific implementation of this embodiment: after the drying of the maltitol sugar is completed, the discharge solenoid valve 36 can be opened, and the dried maltitol sugar blocks enter the crushing bin 21 through the second joint 33. At this time, the two worms 28 can be controlled to rotate by the crushing motor 27, and then because the spiral directions of the two worms 28 are opposite, the two worms 28 will drive the two worm wheels 26 to rotate in the opposite direction, and then the two crushing rollers 25 will rotate relative to each other in the crushing bin 21 to fully crush the maltitol sugar blocks to obtain the desired powdered maltitol crystals.

[0040] In the embodiment of the present disclosure, in order to avoid uneven size of powdered maltitol crystals and to ensure that powdered maltitol crystals of uniform size are collected, the preparation device further includes: a collection box 22. The collection box 22 is connected to the bottom of the crushing bin 21, and a vibrating screen 23 and a rolling roller 24 are installed inside the collection box 22. The vibrating screen 23 is located above the aggregate drawer 29, and the rolling roller 24 is arranged on the upper part of the vibrating screen 23 and located in the lower end area of ​​the vibrating screen 23. The rolling roller 24 is used to crush the large-particle maltitol crystals located on the vibrating screen 23 again. Among them, the screening aperture of the vibrating screen 23 can be set according to the actual preparation needs to obtain powdered crystalline maltitol that meets the particle size requirements.

[0041] In the specific implementation of this embodiment: after the maltitol lumps are fully crushed by the crushing component, they can be vibrated and screened through the vibrating screen 23, and the maltitol lumps that are not completely crushed can be crushed again by the crushing roller 24 in the lower end area of ​​the vibrating screen 23, so that all the crushed maltitol crystals can be effectively screened out, which can ensure that the particle size of the powdered crystals collected in the collection drawer 29 is uniform, and further improve the preparation effect of the powdered crystalline maltitol.

[0042] The present invention also discloses a method for preparing powdered crystalline maltitol, which uses the above-mentioned preparation device for powdered crystalline maltitol. The preparation method comprises the following steps: S1. Crystallization: The maltitol solution to be crystallized is transported to a crystallization tank 2 for crystallization treatment to obtain maltitol treacle and mother liquor.

[0043] In the examples disclosed herein, in order to facilitate the full crystallization of the solution and improve the crystallization effect and efficiency, the stirring component may include a stirring shaft, a stirring rod arranged on the stirring shaft, and a driving component for driving the stirring rod to rotate. Correspondingly, step S1 may specifically be: driving the stirring rod by the driving component to fully stir the maltitol solution and fully crystallize it to obtain maltitol crystals.

[0044] In order to further improve the crystallization effect and efficiency, the stirring component may include a first stirring shaft 3 and a second stirring shaft 5, a plurality of first stirring rods 6 arranged on the first stirring shaft 3, a plurality of second stirring rods 7 arranged on the first stirring shaft 5, and a driving assembly, the driving assembly being used to drive the first stirring rod 6 and the second stirring rod 7 to rotate. Correspondingly, step S1 may specifically be: driving the first stirring rod 6 and the second stirring rod 7 to rotate by the driving assembly, so that the convection effect of the maltitol solution during the stirring process is enhanced, the solution is fully stirred, and the solution is fully crystallized to obtain maltitol tidbits.

[0045] The driving assembly may include: a stirring motor 9 arranged on the support frame 4, a first bevel gear 10 mounted on the output shaft of the stirring motor 9, a second bevel gear 11 mounted on the second stirring shaft 5, and a third bevel gear 12 mounted on the top of the first stirring shaft 3. Correspondingly, step S1 may also be specifically as follows: the first bevel gear 10 may be controlled to rotate by the stirring motor 9, and then the second bevel gear 11 and the third bevel gear 12 meshing with the first bevel gear 10 rotate, and then the first stirring rod 6 on the first stirring shaft 3 and the second stirring rod 7 on the second stirring shaft 5 rotate without interfering with each other, thereby enhancing the convection effect on the maltitol solution during the stirring process, fully stirring, and fully crystallizing to obtain maltitol tidal sugar.

[0046] S2, solid-liquid separation: the mother liquor is discharged to the outside through the liquid discharge pipe 34, and then the crystal discharge solenoid valve 35 is opened to discharge the maltitol treacle through the first joint 32 into the drying tank 13.

[0047] In the embodiment of the present disclosure, after the maltitol solution is fully stirred and crystallized, maltitol treacle and mother liquor are obtained. In order to further facilitate the discharge of the mother liquor to the outside, a filter screen 34 for filtering the mother liquor is installed in the drain pipe 34, and a drain solenoid valve 37 for controlling the discharge of the mother liquor is provided on the drain pipe 34. S2 can be specifically: open the drain solenoid valve 37, discharge the crystallized mother liquor to the outside through the drain pipe 34 under the filtration of the filter screen 31, and then open the crystal discharge solenoid valve 35 to discharge the maltitol treacle to the drying tank 13.

[0048] S3, drying: the drying tank 13 dries the maltitol syrup to obtain maltitol lumps.

[0049] In an embodiment of the present disclosure, a hot air drying component may be provided on the drying tank 13, and the hot air drying component is used to dry the maltitol treacle discharged into the drying tank 13 to obtain maltitol treacle. The hot air drying component may include: a hot air blower 16 installed on the outer wall of the drying tank 13, an air supply shaft 14 installed inside the drying tank 13, a turning blade 15 arranged on the outer wall of the air supply shaft 14, and a rotating operation component. The rotating operation component is used to drive the turning blade 15 to rotate to turn the maltitol treacle. Correspondingly, step S3 may specifically be: the maltitol treacle enters the drying tank 13, the hot air is transported into the air supply shaft 14 by the hot air blower 16 and then discharged into the drying tank 13, and then the turning blade 15 is driven to rotate by the rotating operation component to turn the maltitol treacle.

[0050] In the embodiment of the present disclosure, the rotating operation assembly may include: a driving motor 17 mounted on the outer wall of the drying tank 13, a driving gear 18 arranged on the output shaft of the driving motor 17, and a transmission gear 19 arranged on the air supply shaft 14 and meshed with the driving gear 18. Correspondingly, step S3 may specifically be: the maltitol tidbits enter the drying tank 13, at which time, the hot air is transported into the air supply shaft 14 by the hot air blower 16, and the air supply shaft 14 discharges the hot air into the drying tank 13, specifically, the hot air can be evenly discharged into the drying tank 13 through the exhaust holes evenly distributed thereon. Then, the driving motor 17 controls the driving gear 18 to rotate, and then the transmission gear 19 meshed with the driving gear 18 drives the turning blade 15 on the air supply shaft 14 to rotate in the drying tank 13, and fully turns the maltitol tidbits, so that the maltitol tidbits can be heated evenly, and a fully uniform drying treatment effect is achieved, thereby improving the drying quality of the maltitol tidbits.

[0051] S4, crushing: the discharge solenoid valve 36 is opened, and the maltitol lumps are discharged into the crushing bin 21 through the second joint 33 . The crushing bin 21 fully crushes the maltitol lumps, and the desired powdered crystalline maltitol is collected in the collecting drawer 29 .

[0052] In this embodiment, the crushing component may include: at least one pair of mutually meshing crushing rollers 25 installed in the crushing bin 21, a worm gear 26 installed on each crushing roller 25, a crushing motor 27 installed on the outer wall of the crushing bin 21, and a worm 28 provided on the output shaft of the crushing motor 27 and respectively meshing with each worm gear 26. Correspondingly, step S4 may specifically be: controlling at least one pair of worm gears 28 to rotate by the crushing motor 2, and then the worm gear 28 drives the corresponding worm gear 26 to rotate, so as to drive the crushing rollers 25 to rotate relatively, and crushing the maltitol block to obtain the desired powdered maltitol crystals.

[0053] In the embodiment of the present disclosure, in order to avoid the uneven size of powdered maltitol crystals and to ensure that powdered maltitol crystals of uniform size are collected, and to further improve the preparation effect of powdered crystalline maltitol, the preparation device of powdered crystalline maltitol also includes: a collecting box 22, and the collecting box 22 is connected to the bottom of the crushing bin 21. A vibrating screen 23 and a rolling roller 24 are installed inside the collecting box 22. Correspondingly, step S4 can also specifically include: vibrating and screening the obtained powdered maltitol crystals through the vibrating screen 23, and crushing the large-particle maltitol crystals located on the vibrating screen 23 again by the rolling roller 24, and collecting the powdered crystalline maltitol filtered by the vibrating screen 23 through the collecting drawer 29, so that the particle size of the collected powdered crystals is uniform, and the preparation effect of the powdered crystalline maltitol is further improved.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preparing powdered crystalline maltitol, comprising a crystallization tank (2), a drying tank (13) and a crushing bin (21), wherein after a maltitol solution is crystallized in the crystallization tank (2), maltitol saccharide and mother liquor are obtained respectively, the drying tank (13) is used to dry the incoming maltitol saccharide to obtain maltitol lumps, and the crushing bin (21) is used to crush the incoming maltitol lumps to obtain the desired powdered crystalline maltitol, characterized in that: A first joint (32) is provided between the crystallization tank (2) and the drying tank (13) for vertical communication, a second joint (33) is provided between the drying tank (13) and the crushing bin (21) for vertical communication, a liquid discharge pipe (34) is provided on the crystallization tank (2) for facilitating the discharge of mother liquor, a crystal discharge solenoid valve (35) for controlling the discharge of maltitol molasses is provided on the first joint (32), and a material discharge solenoid valve (36) for controlling the discharge of maltitol lumps is provided on the second joint (33); and a material collection drawer (29) for collecting powdered crystallized maltitol is provided directly below the crushing bin (21).

2. The device for preparing powdered crystalline maltitol according to claim 1, characterized in that: A filter screen (31) for filtering the mother liquid is installed in the liquid discharge pipe (34), and a liquid discharge solenoid valve (37) for controlling the discharge of the mother liquid is arranged on the liquid discharge pipe (34).

3. The preparation device of powdered crystalline maltitol according to claim 1, characterized in that: A stirring component is provided in the crystallization tank (2), and the stirring component comprises: a stirring shaft installed inside the crystallization tank (2), a stirring rod provided on the stirring shaft, and a driving assembly for driving the stirring rod to rotate.

4. The device for preparing powdered crystalline maltitol according to claim 3, characterized in that: The stirring shaft comprises: a first stirring shaft (3) and a second stirring shaft (5) installed inside the crystallization tank (2); the stirring rods comprise: a plurality of first stirring rods (6) arranged on the first stirring shaft (3), and a plurality of second stirring rods (7) arranged on the second stirring shaft (5); and the driving assembly is used for driving the first stirring rods (6) and the second stirring rods (7) to rotate.

5. The device for preparing powdered crystalline maltitol according to claim 4, characterized in that: The stirring component further comprises: a support frame (4) arranged on the outer wall of the crystallization tank (2), the second stirring shaft (5) being mounted on the support frame (4) and passing through the first stirring shaft (3); the driving assembly comprises: a stirring motor (9) arranged on the support frame (4), a first bevel gear (10) mounted on the output shaft of the stirring motor (9), a second bevel gear (11) mounted on the second stirring shaft (5), and a third bevel gear (12) mounted on the top end of the first stirring shaft (3); wherein the second bevel gear (11) and the third bevel gear (12) are both meshed with the first bevel gear (10); the stirring motor (9) is used to control the rotation of the first bevel gear (10), thereby driving the second bevel gear (11) and the third bevel gear (12) to rotate simultaneously, so as to control the rotation of the first stirring rod (6) and the second stirring rod (7).

6. The device for preparing powdered crystalline maltitol according to claim 1, characterized in that: The drying tank (13) is also provided with a hot air drying component, the hot air drying component comprising: a hot air blower (16) mounted on the outer wall of the drying tank (13), an air supply shaft (14) mounted inside the drying tank (13) and having a hollow interior, a material turning blade (15) arranged on the outer wall of the air supply shaft (14), and a rotary operating component, the rotary operating component being used to drive the air supply shaft (14) and the material turning blade (15) to rotate so as to turn the maltitol treacle; The hot air drying component further comprises a rotary joint (20), the air supply pipe end of the hot air blower (16) being connected to the top end of the air supply shaft (14) via the rotary joint (20), and a plurality of exhaust holes being provided on the shaft surface of the air supply shaft (14).

7. The device for preparing powdered crystalline maltitol according to claim 6, characterized in that: The rotary operation assembly comprises: a driving motor (17) mounted on the outer wall of the drying tank (13), a driving gear (18) arranged on the output shaft of the driving motor (17), and a transmission gear (19) arranged on the air supply shaft (14) and meshing with the driving gear (18); the driving motor (17) is used to control the driving gear (18) to rotate, thereby driving the transmission gear (19) to rotate, thereby driving the air supply shaft (14) and the material turning blade (15) to rotate.

8. The device for preparing powdered crystalline maltitol according to claim 1, characterized in that: A pulverizing component is also provided in the pulverizing bin (21), the pulverizing component comprising: at least one pair of mutually meshing pulverizing rollers (25) installed in the pulverizing bin (21), a worm gear (26) installed on each pulverizing roller (25), a pulverizing motor (27) installed on the outer wall of the pulverizing bin (21), and a worm (28) provided on the output shaft of the pulverizing motor (27) and respectively meshing with each worm gear (26); wherein the pulverizing motor (27) is used to control the rotation of the worm gear (28) to drive the corresponding worm gear (26) to rotate, thereby driving the pulverizing rollers (25) to rotate relatively, thereby pulverizing the maltitol sugar blocks.

9. The device for preparing powdered crystalline maltitol according to claim 1, characterized in that: The preparation device further comprises: a collecting box (22), the collecting box (22) being connected to the bottom of the crushing bin (21), a vibrating screen (23) and a rolling roller (24) being installed inside the collecting box (22), the vibrating screen (23) being located above the collecting drawer (29), the rolling roller (24) being arranged on the upper part of the vibrating screen (23) and located in the lower end area of ​​the vibrating screen (23), and the rolling roller (24) being used to re-roll and crush the large-particle maltitol crystals located above the vibrating screen (23).

10. A method for preparing powdered crystalline maltitol, characterized in that: The method uses the device for preparing powdered crystalline maltitol as claimed in any one of claims 1 to 9, and the preparation method comprises the following steps: S1, crystallization: the maltitol solution to be crystallized is transported to a crystallization tank (2) for crystallization treatment to obtain maltitol sucrose and mother liquor; S2, solid-liquid separation: the mother liquor is discharged to the outside through the liquid discharge pipe (34), and then the crystal discharge solenoid valve (35) is opened to discharge the maltitol treacle through the first joint (32) into the drying tank (13); S3, drying: the drying tank (13) dries the maltitol sugar to obtain maltitol sugar blocks; S4, crushing: the discharge solenoid valve (36) is opened, and the maltitol lumps are discharged into the crushing bin (21) through the second joint (33). The crushing bin (21) fully crushes the maltitol lumps, and the desired powdered crystalline maltitol is collected in the collecting drawer (29).

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