Preparation device of powdery crystalline maltitol

Abstract

The utility model belongs to the technical field of maltitol preparation, and relates to a preparation device of powdery crystallized maltitol, which 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 utility model, crystallization equipment, drying equipment 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 favorable for reducing the equipment cost and the maintenance difficulty and improving the production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of maltitol preparation technology, and specifically relates to an apparatus for preparing powdered crystalline maltitol. Background Technology

[0002] Maltitol is a type of carbohydrate produced by the action of amylase-containing malt on starch. Powdered crystalline maltitol is characterized by its low calorie content, non-cariogenic properties, suitability for diabetics, promotion of gut health, and good stability and processing resistance in industrial production. Therefore, with continuous technological advancements and increasingly diversified consumer demands, the application and production needs of powdered crystalline maltitol are growing.

[0003] The preparation of powdered crystalline maltitol mainly involves three processes: crystallization, drying, and pulverization. Existing preparation equipment can centrally process the crystallization and drying processes, then transfer the dried maltitol material to a separate pulverizing unit for further pulverization to obtain powdered crystalline maltitol; alternatively, the crystallization unit can crystallize the maltose solution, and then transfer the resulting maltitol to a separate drying unit for drying and pulverization to obtain powdered crystalline maltitol. The transfer of crystalline maltitol material between different units not only increases the amount of handling equipment and costs but also leads to low production efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for preparing powdered crystalline maltitol, which integrates the crystallization, drying and pulverization equipment for preparing maltitol crystals, reduces the transfer links and repetitive operations of maltitol crystal materials, improves work efficiency, and the integrated equipment helps to reduce equipment costs and maintenance difficulty, and improve production efficiency.

[0005] This invention is implemented as follows: An apparatus for preparing powdered crystalline maltitol is provided, comprising a crystallization tank, a drying tank, and a grinding chamber. After crystallization in the crystallization tank, maltitol solution yields maltitol molten sugar and mother liquor. The drying tank dries the incoming maltitol molten sugar to obtain maltitol lumps. The grinding chamber grinds the incoming maltitol lumps to obtain the desired powdered crystalline maltitol. A first joint connects the crystallization tank and the drying tank vertically, and a second joint connects the drying tank and the grinding chamber vertically. A drain pipe facilitates the discharge of the mother liquor on the crystallization tank. A solenoid valve for discharging the maltitol molten sugar is installed on the first joint, and a solenoid valve for discharging the maltitol lumps is installed on the second joint. A collection drawer for collecting the powdered crystalline maltitol is located directly below the grinding chamber.

[0006] Furthermore, a filter screen for filtering the mother liquor is installed inside the drain pipe, and a drain solenoid valve for controlling the discharge of the mother liquor is installed on the drain pipe.

[0007] Furthermore, a stirring component is provided inside the crystallization tank (2), the stirring component including: a stirring shaft installed inside the crystallization tank, a stirring rod disposed on the stirring shaft, and a drive 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 disposed on the first stirring shaft and a plurality of second stirring rods disposed on the second stirring shaft; the driving assembly is used to drive the first stirring rods and the second stirring rods to rotate.

[0009] The stirring component further includes: a support frame disposed on the outer wall of the crystallization tank; the second stirring shaft is mounted on the support frame and passes through the first stirring shaft; the driving component includes: a stirring motor disposed on the support frame; a first bevel gear mounted on the output shaft of the stirring motor; a second bevel gear mounted on the second stirring shaft; and a third bevel gear mounted on the top of the first stirring shaft; wherein the second and third bevel gears mesh with the first bevel gear; the stirring motor is used to control the rotation of the first bevel gear, thereby driving the second and third bevel gears to rotate simultaneously, in order to control the rotation of the first stirring rod and the second stirring rod.

[0010] Furthermore, the drying tank is also equipped with a hot air drying component, which includes: a hot air blower installed on the outer wall of the drying tank, a hollow air supply shaft installed inside the drying tank, a turning blade set on the outer wall of the air supply shaft, and a rotation operation component. The rotation operation component is used to drive the air supply shaft and the turning blade to rotate, so as to turn the maltitol molasses.

[0011] Furthermore, the hot air drying component also includes a rotary joint, wherein 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 provided on the shaft surface of the air supply shaft.

[0012] Furthermore, the rotating operation assembly includes: a drive motor mounted on the outer wall of the drying tank, a drive gear disposed on the output shaft of the drive motor, and a transmission gear disposed on the air supply shaft and meshing with the drive gear. The drive motor is used to control the rotation of the drive gear, thereby driving the transmission gear to rotate, which in turn drives the air supply shaft and the turning blades to rotate.

[0013] Furthermore, a pulverizing component is also provided inside the pulverizing chamber. The pulverizing component includes: at least one pair of meshing pulverizing rollers installed inside the pulverizing chamber, a worm gear installed on each pulverizing roller, a pulverizing motor installed on the outer wall of the pulverizing chamber, and a worm gear mounted on the output shaft of the pulverizing motor. The pulverizing motor controls the rotation of the worm gear, which in turn drives the corresponding worm gear to rotate, thereby causing the pulverizing rollers to rotate relative to each other, thus pulverizing the maltitol sugar block.

[0014] Furthermore, the preparation device also includes: a collection box, which is connected to the bottom of the crushing chamber. A vibrating screen and a crushing roller are installed inside the collection box. The vibrating screen is located above the collection drawer, and the crushing roller is arranged above the vibrating screen and located in the lower part of the vibrating screen. The crushing roller is used to crush the large maltitol crystals located on the vibrating screen again.

[0015] Compared with existing technologies, this invention provides a preparation apparatus for powdered crystalline maltitol, comprising a crystallization tank, a drying tank, and a grinding chamber. A first joint connects the crystallization tank and the drying tank vertically, and a second joint connects the drying tank and the grinding chamber vertically. A solenoid valve for discharging maltitol molten sugar is installed on the first joint, and a solenoid valve for discharging maltitol lumps is installed on the second joint. A collection drawer for collecting powdered crystalline maltitol is located directly below the grinding chamber. This invention integrates the crystallization, drying, and grinding processes in the preparation of powdered crystalline maltitol, eliminating the need to transfer maltitol crystals to other separate preparation equipment. This reduces the transfer of maltitol crystals and repetitive operations, thereby improving the preparation efficiency of powdered crystalline maltitol. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the apparatus for preparing powdered crystalline maltitol according to the present invention;

[0017] Figure 2 for Figure 1 Cross-sectional schematic diagram of the intermediate crystallization tank;

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure of the crystallizer;

[0019] Figure 4 for Figure 1 3D schematic diagram of the drying tank;

[0020] Figure 5 for Figure 4 A three-dimensional schematic diagram of the internal structure of the medium drying tank;

[0021] Figure 6 for Figure 1A three-dimensional schematic diagram of the assembled state of the crushing chamber and the collection box;

[0022] Figure 7 for Figure 6 A three-dimensional schematic diagram of the internal structure of the crushing chamber and the collection box.

[0023] In the diagram: 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. First bevel gear; 11. Second bevel gear; 12. Third 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 chamber; 22. Collection box; 23. Vibrating screen; 24. Compressing roller; 25. Crushing roller; 26. Worm gear; 27. Crushing motor; 28. Worm; 29. ​​Collection drawer; 30. Support column; 31. Filter screen; 32. First joint; 33. Second joint; 34. Drain pipe; 35. Crystal discharge solenoid valve; 36. Material discharge solenoid valve; 37. Liquid discharge solenoid valve. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] Please refer to the following at the same time Figures 1-3 As shown, a preferred embodiment of the apparatus for preparing powdered crystalline maltitol provided by this utility model includes a crystallization tank 2, a drying tank 13, and a pulverizing chamber 21. After the maltitol solution crystallizes in the crystallization tank 2, maltitol molten sugar and mother liquor are obtained respectively. The drying tank 13 is used to dry the incoming maltitol molten sugar to obtain maltitol lumps. The pulverizing chamber 21 is used to pulverize the incoming maltitol lumps to obtain the desired powdered crystalline maltitol.

[0026] A first connector 32 is provided between the crystallization tank 2 and the drying tank 13 for vertical connection, and a second connector 33 is provided between the drying tank 13 and the grinding chamber 21 for vertical connection. A drain pipe 34 is provided on the crystallization tank 2 to facilitate the discharge of mother liquor. A solenoid valve 35 for discharging maltitol sugar is provided on the first connector 32 to control the discharge of maltitol sugar lumps, and a discharge solenoid valve for discharging maltitol sugar lumps is provided on the second connector 33. A collection drawer 29 for collecting powdered crystalline maltitol is provided directly below the grinding chamber 21.

[0027] It should be noted that the first connector 32 can be configured as a bent pipe connector, specifically, it can be a slanted adapter pipe connector, and the second connector 33 can be configured as a straight pipe connector. The shape of the first connector 32 or the second connector 33 is not limited here. In this embodiment, the crystallization tank 2 and the drying tank 13 are directly connected vertically through the first connector 32, and the drying tank 13 and the crushing chamber 21 are directly connected vertically through the second connector 33. Furthermore, by setting a drain pipe 34 on the crystallization tank 2, setting a crystal discharge solenoid valve 35 on the first connector 32, setting a discharge solenoid valve 36 on the second connector 33, and setting a collection drawer 29 directly below the crushing chamber 21, the crystallization equipment, drying equipment and crushing equipment are integrated. That is, the maltitol solution can be crystallized, dried and crushed sequentially in one device, and finally powdered crystalline maltitol is obtained. In other words, a maltitol solution is first mixed and stirred in one apparatus to fully crystallize, obtaining maltitol syrup and mother liquor. The mother liquor is then discharged externally, and the maltitol syrup is dried. Finally, the dried maltitol syrup is pulverized to obtain the desired powdered crystalline maltitol. Throughout the entire preparation process of powdered crystalline maltitol, there is no need to transfer the maltitol crystals to other separate preparation equipment, reducing the transfer of maltitol crystals and repetitive operations, thereby improving the preparation efficiency of powdered crystalline maltitol.

[0028] In the embodiments of this disclosure, after the maltitol solution in the crystallization tank 2 is thoroughly stirred and crystallized, maltitol molten sugar and mother liquor are obtained. Solid-liquid separation can be effectively achieved by installing a drain pipe 34 on the crystallization tank 2 and a crystal discharge solenoid valve 35 on the first connector 32 connecting the crystallization tank 2 and the drying tank 13. Specifically, the drain pipe 34 and the crystal discharge solenoid valve 35 can be configured and installed at the bottom of the crystallization tank 2, with the solenoid valve 35 located below the drain pipe 34. The crystal discharge solenoid valve 35 controls the flow of maltitol molten sugar into the drying tank 13.

[0029] In the embodiments of this disclosure, to facilitate the discharge of the mother liquor to the outside and to prevent the discharge of maltitol molasses, a filter screen 31 can be installed inside 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. The filter screen 31 is adapted to the drain pipe 34, and the drain solenoid valve 37 can control the discharge of the crystallized maltitol mother liquor through the filter screen 31 to the outside. In a specific embodiment, opening the drain solenoid valve 37 on the drain pipe 34 allows the crystallized mother liquor to be discharged to the outside under the filtration of the filter screen 31. Opening the crystal discharge solenoid valve 35 allows the maltitol molasses to flow into the drying tank 13.

[0030] In the embodiments of this disclosure, to provide stable support for the crystallization tank 2, drying tank 13, and pulverizing chamber 21, the apparatus for preparing powdered crystalline maltitol may further include a counterweight base 1. To further stabilize the crystallization tank 2, the apparatus may also include a support column 30. The crystallization tank 2 and the counterweight base 1 are connected by the same support column 30; specifically, both ends of the support column 30 can be connected to the crystallization tank 2 and the counterweight base 1, respectively. Furthermore, to allow the maltitol solution to be delivered to the crystallization tank 2, the crystallization tank 2 may be provided with an inlet, specifically an external delivery pump, through which the maltitol solution can be introduced into the crystallization tank 2.

[0031] In embodiments of this disclosure, the crystallization tank 2 may be equipped with a stirring component for mixing and stirring the maltitol solution delivered to the crystallization tank 2, thereby improving the uniformity of maltitol crystallization. The stirring component includes: a stirring shaft installed inside the crystallization tank 2, a stirring rod disposed on the stirring shaft, and a drive assembly for driving the stirring rod to rotate.

[0032] In the embodiments of this disclosure, the stirring shaft includes a first stirring shaft 3 and a second stirring shaft 5 installed inside the crystallization tank 2. The stirring rods include a plurality of first stirring rods 6 disposed on the first stirring shaft 3 and a plurality of second stirring rods 7 disposed on the first stirring shaft 5. A drive assembly is used to drive the first stirring rods 6 and the second stirring rods 7 to rotate.

[0033] In the disclosed embodiments, the first stirring shaft 3 can be rotatably mounted at the center of the top of the crystallization tank 2, or at any position on the top, or at any position inside the crystallization tank 2. The first stirring shaft 3 can be configured as a hollow stirring shaft or a round stirring shaft. The second stirring shaft 5 can be configured as a hollow stirring shaft, a round stirring shaft, or a solid stirring shaft. A plurality of first stirring rods 6 can be welded to the first stirring shaft 3 and are 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 are evenly distributed on the second stirring shaft 5.

[0034] In embodiments of this disclosure, the stirring component may further include: a support frame 4 disposed on the outer wall of the crystallization tank 2, and a second stirring shaft 5 mounted 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 mounted at the center of the top of the crystallization tank 2, a second stirring shaft 5 rotatably mounted on the support frame 4 and passing through the first stirring shaft 3, a plurality of first stirring rods 6 welded to the first stirring shaft 3 and evenly distributed, and a plurality of second stirring rods 7 welded to the second stirring shaft 5 and evenly distributed. By providing a stirring component, the temperature of the maltitol solution is made more uniform, thereby facilitating complete crystallization.

[0035] In the embodiments of this 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 stirring blades located in the bottom area of ​​the crystallization tank 2. The stirring blades can be configured as spiral stirring blades 8. The spiral stirring blades 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.

[0036] In embodiments of this disclosure, the drive assembly may include: a stirring motor 9 mounted on a 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 a second stirring shaft 5, and a third bevel gear 12 mounted on the top end of a first stirring shaft 3. The second bevel gear 11 and the third bevel gear 12 both mesh with the first bevel gear 10. The stirring motor 9 controls the rotation of the first bevel gear 10, driving the second bevel gear 11 and the third bevel gear 12 to rotate simultaneously, thereby controlling the rotation of the first stirring rod 6 and the second stirring rod 7. The stirring motor 9 can be fixedly mounted 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 drive assembly may include: a stirring motor 9 fixedly mounted on the side wall of the support frame 4, a first bevel gear 10 fixedly mounted on the output shaft of the stirring motor 9, a second bevel gear 11 fixedly mounted on the upper part of the solid stirring shaft 5, and a third 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 second bevel gear 11 and the third bevel gear 12 both mesh with the first bevel gear 10.

[0037] In the specific implementation of the embodiments of this disclosure, firstly, the first bevel gear 10 is rotated by the stirring motor 9, and then the second bevel gear 11 and the third bevel gear 12, which mesh with the first bevel gear 10, will rotate simultaneously. Subsequently, the first stirring rod 6 on the first stirring shaft 3 and the second stirring rod 7 on the second stirring shaft 5 rotate independently, thereby enhancing the convection effect on the maltitol solution during the mixing process, facilitating thorough mixing and stirring, and thus facilitating the full crystallization of the solution, which can improve the crystallization effect and efficiency.

[0038] Please refer to the following at the same time Figure 1 , 4As shown in Figure 5, in the disclosed embodiments and other possible embodiments, a hot air drying component is further provided on the drying tank 13. The hot air drying component is used to dry the maltitol molasses discharged into the drying tank 13 to obtain maltitol molasses. The hot air drying component may include: a hot air blower 16 installed on the outer wall of the drying tank 13, a hollow air supply shaft 14 installed inside the drying tank 13, a turning blade 15 disposed on the outer wall of the air supply shaft 14, and a rotation operation assembly. The rotation operation assembly 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 may 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 may be configured as a double helical turning blade, and the turning blade 15 is welded to 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 inside the drying tank 13, a turning blade 15 welded to the outer wall of the air supply shaft 14, a hot air blower 16 fixedly mounted on the top outer wall of the drying tank 13, and a rotation operation assembly. The rotation operation assembly is used to drive the turning blade 15 to rotate, so as to turn the maltitol molasses.

[0039] In embodiments of this disclosure, the rotation operation assembly includes: a drive motor 17 mounted on the outer wall of the drying tank 13, a drive gear 18 disposed on the output shaft of the drive motor 17, and a transmission gear 19 disposed on the air supply shaft and meshing with the drive gear 18. The drive motor 17 controls the rotation of the drive gear 18, thereby driving the transmission gear 19 to rotate, which in turn drives the turning blades 15 to rotate. Specifically, the rotation operation assembly may include: a drive motor 17 fixedly mounted on the top outer wall of the drying tank 13, a drive gear 18 fixedly mounted on the output shaft of the drive motor 17, and a transmission gear 19 fixedly mounted on the air supply shaft 14 and meshing with the drive gear 18. The output shaft of the drive motor 17 passes through the top of the drying tank 13.

[0040] In embodiments of this 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 end of the air supply shaft 14 via the rotary joint 20, and a plurality of exhaust holes are formed on the shaft surface of the air supply shaft 14. Specifically, the plurality of exhaust holes can be evenly distributed.

[0041] In this embodiment, the maltitol molasses in the crystallization tank 2 can enter the drying tank 13 through the first connecting pipe 32. At this time, hot air is delivered 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 evenly distributed exhaust holes on the air supply shaft 14. Then, the drive motor 17 drives the drive gear 18 to rotate, and the transmission gear 19 meshing with the drive gear 18 will drive the turning blades 15 on the air supply shaft 14 to rotate in the drying tank 13, fully turning the maltitol molasses, so that the maltitol molasses can be heated evenly, achieving a fully uniform drying effect and improving the drying quality.

[0042] In embodiments of this disclosure, in order to further improve the drying quality of maltitol crystals, a dehumidification pipe may also be provided on the drying tank 13.

[0043] Please refer to the following at the same time Figure 1 , 6 As shown in Figure 7, in the disclosed embodiments and other possible embodiments, a crushing component is further provided within the crushing chamber 21. The crushing component is used to crush the maltitol sugar blocks discharged into the crushing chamber 21 to obtain the desired powdered crystalline maltitol. The crushing component may include: at least one pair of meshing crushing rollers 25 and 25' installed within the crushing chamber 21; worm gears 26 and 26' installed on each crushing roller 25 and 25'; a crushing motor 27 installed on the outer wall of the crushing chamber 21; and worms 28 and 28' disposed on the output shaft of the crushing motor 27 and respectively meshing with each worm gear 26 and 26'. The crushing motor 27 controls the rotation of the worms 28 and 28', which in turn drive the corresponding worm gears 26 and 26' to rotate, thereby causing the crushing rollers 25 and 25' to rotate relative to each other, thus crushing the maltitol sugar blocks.

[0044] In embodiments of this disclosure, the crushing component may be configured as at least a pair of crushing rollers 25 and 25' installed in the crushing chamber 21, worm gears 26 and 26' sequentially fixedly sleeved on the crushing rollers 25 and 25', a crushing motor 27 fixedly installed on the front outer wall of the crushing chamber 21, and worms 28 and 28' fixedly sleeved on the output shaft of the crushing motor 27, wherein the worms 28 and 28' mesh with the worm gears 26 and 26'.

[0045] In this embodiment, after the maltitol sugar has been dried, the discharge solenoid valve 36 can be opened, and the dried maltitol sugar blocks enter the crushing chamber 21 through the second connector 33. At this time, the crushing motor 27 can control the rotation of the two worms 28 and 28'. Subsequently, since the spiral directions of the two worms 28 and 28' are opposite, the two worms 28 and 28' will drive the two worm wheels 26 and 26' to rotate in the opposite direction. As a result, the two crushing rollers 25 and 25' will rotate relative to each other in the crushing chamber 21 to fully crush the maltitol sugar blocks to obtain the desired powdered maltitol crystals.

[0046] In embodiments of this disclosure, to avoid uneven size of powdered maltitol crystals and to ensure the collection of uniformly sized powdered maltitol crystals, the preparation apparatus further includes a collection box 22. The collection box 22 is connected to the bottom of the crushing chamber 21, and a vibrating screen 23 and a crushing roller 24 are installed inside the collection box 22. The vibrating screen 23 is located above the collection drawer 29, and the crushing roller 24 is disposed above the vibrating screen 23 and located in the lower region of the vibrating screen 23. The crushing roller 24 is used to further crush and break down large maltitol crystals located on the vibrating screen 23. The sieve aperture of the vibrating screen 23 can be set according to actual preparation needs to obtain powdered crystalline maltitol that meets the particle size requirements.

[0047] In this embodiment, after the pulverizing component fully pulverizes the maltitol sugar blocks, they can be vibrated and sieved through the vibrating screen 23. Maltitol sugar blocks that are not completely pulverized can be crushed again by the crushing roller 24 in the lower area of ​​the vibrating screen 23. In this way, all the pulverized maltitol crystals can be effectively screened out, ensuring that the particle size of the powdered crystals collected in the collection drawer 29 is uniform and consistent, further improving the preparation effect of powdered maltitol crystals.

[0048] According to the embodiments of this disclosure, based on the powdered crystalline maltitol preparation apparatus provided by this utility model, powdered crystalline maltitol meeting the particle size requirements can be prepared. A method for preparing powdered crystalline maltitol using the powdered crystalline maltitol preparation apparatus of this utility model is also provided. The preparation method includes the following steps:

[0049] S1. Crystallization: The maltitol solution is transported to the crystallization tank 2 by an external transfer pump for crystallization. During the crystallization process, the maltitol solution is thoroughly stirred by a stirring component to obtain maltitol syrup and mother liquor.

[0050] In the examples of this disclosure, 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 disposed 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 to fully stir the maltitol solution through the driving component to fully crystallize it, so as to obtain maltitol crystals.

[0051] To further improve the crystallization effect and efficiency, the stirring components may include a first stirring shaft 3 and a second stirring shaft 5, a plurality of first stirring rods 6 disposed on the first stirring shaft 3, a plurality of second stirring rods 7 disposed on the first stirring shaft 5, and a driving assembly for driving the first stirring rods 6 and the second stirring rods 7 to rotate. Correspondingly, step S1 may specifically be: driving the first stirring rods 6 and the second stirring rods 7 to rotate by the driving assembly, thereby enhancing the convection of the maltitol solution during the stirring process, achieving thorough stirring and crystallization, to obtain maltitol molasses.

[0052] The driving components may include: a stirring motor 9 mounted 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 further involve: the stirring motor 9 controlling the first bevel gear 10 to rotate, followed by the rotation of the second bevel gear 11 and the third bevel gear 12 meshing with the first bevel gear 10. Subsequently, the first stirring rod 6 on the first stirring shaft 3 and the second stirring rod 7 on the second stirring shaft 5 rotate independently, thereby enhancing the convection effect on the maltitol solution during stirring, ensuring thorough stirring and crystallization to obtain maltitol syrup.

[0053] S2. Solid-liquid separation: The mother liquor obtained from the crystallization of maltitol solution is discharged to the outside through the drain pipe 34. Then, the crystal discharge solenoid valve 35 is opened to discharge the maltitol molasses obtained from the crystallization of maltitol solution through the first connector 32 to the drying tank 13.

[0054] In the embodiments of this disclosure, after the maltitol solution is thoroughly stirred and crystallized, maltitol molten sugar and mother liquor are obtained. To further facilitate the discharge of the mother liquor, 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. Specifically, S2 can be: opening the drain solenoid valve 37 to discharge the crystallized mother liquor to the outside through the drain pipe 34 under the filtration of the filter screen 31, and then opening the crystal discharge solenoid valve 35 to discharge the maltitol molten sugar into the drying tank 13.

[0055] S3. Drying: Maltitol sugar enters the drying tank 13 for drying to obtain maltitol sugar blocks. Then, the discharge solenoid valve 36 is opened to discharge the maltitol sugar blocks into the crushing chamber 21 through the second connector 33.

[0056] In embodiments of this disclosure, the drying tank 13 may be equipped with a hot air drying component. This component is used to dry the maltitol molasses discharged into the drying tank 13 to obtain maltitol molasses. The hot air drying component may include: 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, a turning blade 15 disposed on the outer wall of the air supply shaft 14, and a rotation operation assembly. The rotation operation assembly is used to drive the turning blade 15 to rotate, thereby turning the maltitol molasses. Correspondingly, step S3 may specifically be: the maltitol molasses enters the drying tank 13, hot air is delivered 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 rotation operation assembly to turn the maltitol molasses.

[0057] In embodiments of this disclosure, the rotation operation component may include: a drive motor 17 mounted on the outer wall of the drying tank 13, a drive gear 18 disposed on the output shaft of the drive motor 17, and a transmission gear 19 disposed on the air supply shaft 14 and meshing with the drive gear 18. Correspondingly, step S3 may specifically be: maltitol molasses enters the drying tank 13. At this time, hot air is delivered into the air supply shaft 14 by a 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 evenly distributed exhaust holes. Subsequently, the drive motor 17 controls the drive gear 18 to rotate, and the transmission gear 19 meshing with the drive gear 18 will drive the turning blades 15 on the air supply shaft 14 to rotate inside the drying tank 13, fully turning the maltitol molasses, thereby ensuring that the maltitol molasses is heated evenly, achieving a fully uniform drying effect, and thus improving the drying quality of the maltitol molasses.

[0058] S4. Crushing: The maltitol sugar block in the drying tank 13 enters the crushing chamber 21 and is fully crushed by the crushing components inside the crushing chamber 21 to obtain the desired powdered crystalline maltitol. Then, the powdered crystalline maltitol is collected by the collection drawer 29 located directly below the crushing chamber 21.

[0059] In this embodiment, the pulverizing component may include: at least one pair of meshing pulverizing rollers 25 and 25' installed in the pulverizing chamber 21, worm gears 26 and 26' installed on each pulverizing roller 25 and 25', a pulverizing motor 27 installed on the outer wall of the pulverizing chamber 21, and worms 28 and 28' disposed on the output shaft of the pulverizing motor 27 and respectively meshing with each worm gear 26 and 26'. Correspondingly, step S4 may specifically be: controlling at least one pair of worms 28 and 28' to rotate by the pulverizing motor 2, and then the worms 28 and 28' drive the corresponding worm gears 26 and 26' to rotate, thereby driving the pulverizing rollers 25 and 25' to rotate relative to each other, pulverizing the maltitol sugar block to obtain the desired powdered maltitol crystals.

[0060] In the embodiments of this disclosure, to avoid uneven size of powdered maltitol crystals and to ensure the collection of uniformly sized powdered maltitol crystals, thereby further improving the preparation effect of powdered crystalline maltitol, the preparation device for powdered crystalline maltitol further includes: a collection box 22, which is connected to the bottom of the crushing chamber 21. A vibrating screen 23 and a crushing roller 24 are installed inside the collection box 22. Correspondingly, step S4 may further include: vibrating and sieving the obtained powdered maltitol crystals through the vibrating screen 23; further crushing and grinding the large maltitol crystals located on the vibrating screen 23 using the crushing roller 24; and collecting the powdered crystalline maltitol filtered by the vibrating screen 23 through the collection drawer 29, thereby ensuring the uniformity of the collected powdered crystal particle size and further improving the preparation effect of powdered crystalline maltitol.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for preparing powdered crystalline maltitol, comprising a crystallization tank (2), a drying tank (13), and a grinding chamber (21), wherein maltitol solution is crystallized in the crystallization tank (2) to obtain maltitol molten sugar and mother liquor, the drying tank (13) is used to dry the incoming maltitol molten sugar to obtain maltitol lumps, and the grinding chamber (21) is used to grind the incoming maltitol lumps to obtain the desired powdered crystalline maltitol, characterized in that, A first connector (32) is provided between the crystallizing tank (2) and the drying tank (13) for vertical connection, and a second connector (33) is provided between the drying tank (13) and the crushing chamber (21) for vertical connection. A drain pipe (34) is provided on the crystallizing tank (2) to facilitate the discharge of mother liquor. A crystal discharge solenoid valve (35) is provided on the first connector (32) to control the discharge of maltitol sugar. A discharge solenoid valve (36) is provided on the second connector (33) to control the discharge of maltitol sugar blocks. A collection drawer (29) for collecting powdered crystalline maltitol is provided directly below the crushing chamber (21).

2. The apparatus for preparing powdered crystalline maltitol according to claim 1, characterized in that, A filter screen (31) 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).

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

4. The apparatus for preparing powdered crystalline maltitol according to claim 3, characterized in that, 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) disposed on the first stirring shaft (3) and a plurality of second stirring rods (7) disposed on the second stirring shaft (5); the driving assembly is used to drive the first stirring rods (6) and the second stirring rods (7) to rotate.

5. The apparatus for preparing powdered crystalline maltitol according to claim 4, characterized in that, The stirring component further includes: a support frame (4) disposed 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 component includes: a stirring motor (9) disposed 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); 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 first bevel gear (10) to rotate, 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 apparatus 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, which includes: a hot air blower (16) installed on the outer wall of the drying tank (13), a hollow air supply shaft (14) installed inside the drying tank (13), a turning blade (15) set on the outer wall of the air supply shaft (14), and a rotation operation component. The rotation operation component is used to drive the air supply shaft (14) and the turning blade (15) to rotate so as to turn the maltitol molasses.

7. The apparatus for preparing powdered crystalline maltitol according to claim 6, characterized in that, The hot air drying component also includes a rotary joint (20), the air supply pipe end of the hot air blower (16) is connected to the top end of the air supply shaft (14) through the rotary joint (20), and multiple exhaust holes are provided on the shaft surface of the air supply shaft (14).

8. The apparatus for preparing powdered crystalline maltitol according to claim 6, characterized in that, The rotating operation assembly includes: a drive motor (17) mounted on the outer wall of the drying tank (13), a drive gear (18) disposed on the output shaft of the drive motor (17), and a transmission gear (19) disposed on the air supply shaft (14) and meshing with the drive gear (18). The drive motor (17) is used to control the drive gear (18) to rotate, thereby driving the transmission gear (19) to rotate, so as to drive the air supply shaft (14) and the turning blades (15) to rotate.

9. The apparatus for preparing powdered crystalline maltitol according to claim 1, characterized in that, The crushing chamber (21) is also equipped with a crushing component, which includes: at least one pair of meshing crushing rollers (25) installed in the crushing chamber (21), a worm gear (26) installed on each crushing roller (25), a crushing motor (27) installed on the outer wall of the crushing chamber (21), and a worm (28) installed on the output shaft of the crushing motor (27) and meshing with each worm gear (26); wherein, the crushing motor (27) is used to control the rotation of the worm (28), drive the corresponding worm gear (26) to rotate, so as to drive the crushing rollers (25) to rotate relative to each other, and crush the maltitol sugar block.

10. The apparatus for preparing powdered crystalline maltitol according to claim 1, characterized in that, The preparation device further includes: a collection box (22), which is connected to the bottom of the crushing chamber (21). A vibrating screen (23) and a crushing roller (24) are installed inside the collection box (22). The vibrating screen (23) is located above the collection drawer (29). The crushing roller (24) is located on the upper part of the vibrating screen (23) and in the lower end area of ​​the vibrating screen (23). The crushing roller (24) is used to crush the large maltitol crystals located on the vibrating screen (23) again.

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