Drying equipment for lactose production

Abstract

The invention relates to drying equipment for lactose production, and belongs to the technical field of lactose production. The outer cover shell covers the outer side of the inner cylinder body, and an interlayer is arranged between the outer cover shell and the inner cylinder body; the heat source device is communicated with the interlayer; the rotating mechanism is arranged on the outer cover shell, is connected with the inner cylinder body and is used for driving the inner cylinder body to rotate; the stirring mechanism is arranged in the inner cylinder body; and the rotation direction of the inner cylinder body is opposite to the stirring direction of the stirring mechanism. The inner barrel can be driven to rotate through the rotating mechanism, lactose crystal grain raw materials can be further driven to achieve the overturning action conveniently, lactose crystal grains can make full and uniform contact with an interlayer conveniently, and then the drying efficiency is improved; the rotation direction of the inner cylinder body is opposite to the stirring direction of the stirring mechanism, so that on one hand, agglomeration and caking of lactose grains can be effectively broken; on the other hand, lactose grains are subjected to bidirectional acting force, so that the possibility of wall adhesion is reduced.

Description

Technical Field

[0001] The present application relates to the field of lactose production technology, and in particular to a drying device for lactose production. Background Art

[0002] Lactose is a disaccharide unique to mammalian milk. It is composed of one molecule of glucose and one molecule of galactose and is a common disaccharide in mammalian milk. Lactose is one of the main nutrients for children's growth and development. It is very important for the intellectual development of adolescents, especially for newborn babies. It is often used to make baby food, candy, artificial milk, etc. The lactose content in cow's milk is 4.6-4.7%, and the lactose content in human milk is 6-8%. The sweetness of lactose is 1 / 5 of that of sucrose. In the food industry, lactose is used as baby food and condensed milk. In the pharmaceutical industry, it is used as a flavoring agent, excipient, diluent, filler, dry powder inhalation carrier, stabilizer, etc. of medicines; in addition, it can also be used as a bacterial culture medium.

[0003] In the processing of lactose, it is usually necessary to go through the processes of precipitation, filtration, crystallization, drying, crushing, screening, etc. Among them, during the drying process, it is necessary to use a drying device to dry the lactose crystals. The existing lactose crystal drying equipment stirs the lactose crystal raw materials through a simple stirring device installed inside, but simple stirring cannot make the lactose crystals fully and evenly contact the heat source, resulting in low drying efficiency. Summary of the invention

[0004] In order to further promote the lactose crystals to fully and evenly contact the heat source, thereby improving the drying efficiency, the present application provides a drying device for lactose production.

[0005] The present application provides a drying device for lactose production, which adopts the following technical solution: A drying device for lactose production, comprising: inner cylinder; An outer cover shell is arranged on the outer side of the inner cylinder, and an interlayer is arranged between the outer cover shell and the inner cylinder; A heat source device, connected to the interlayer; A rotating mechanism, disposed on the outer casing and connected to the inner cylinder, for driving the inner cylinder to rotate; A stirring mechanism is arranged in the inner cylinder; The rotation direction of the inner cylinder is opposite to the stirring direction of the stirring mechanism.

[0006] By adopting the above technical scheme, when the drying equipment is used, the lactose crystal raw material is put into the inner cylinder, the temperature in the interlayer can be heated and heated by the heat source device, and the lactose crystal raw material can be stirred by the stirring mechanism, so as to realize the drying of the lactose crystal raw material. The inner cylinder is driven to rotate by the rotary mechanism, so as to further drive the lactose crystal raw material to realize the action of turning and lifting the material, so as to facilitate the lactose crystal to fully and evenly contact the interlayer, thereby improving the drying efficiency; and the rotation direction of the inner cylinder in the present application rotates in the opposite direction to the stirring direction of the stirring mechanism, which can greatly increase the relative speed between the inner wall of the inner cylinder and the stirring mechanism on the one hand, thereby generating a higher shear rate, so as to effectively break the agglomeration and agglomeration of the lactose crystals; on the other hand, when the inner cylinder and the stirring mechanism move in the opposite direction, the lactose crystals are subjected to a bidirectional force, and it is difficult to adhere to the surface of either side, thereby reducing the possibility of the lactose crystals sticking to the wall.

[0007] Optionally, the inner cylinder is rotatably connected to the outer cover shell, and the rotating mechanism includes a rotating motor, a rotating sprocket and a rotating gear ring. The rotating motor is arranged on the outer cover shell, the rotating sprocket is coaxially fixed with the output end of the rotating motor, the rotating gear ring is coaxially fixed to the outer side of the inner cylinder, and the rotating sprocket is transmission-connected to the rotating gear ring via a transmission chain.

[0008] By adopting the above technical solution, when the rotary motor rotates, it drives the rotary sprocket to rotate, and the rotation of the rotary sprocket drives the rotary gear ring to rotate through the transmission of the transmission chain, thereby achieving the purpose of driving the inner cylinder to rotate.

[0009] Optionally, the stirring mechanism includes a stirring shaft and a stirring frame arranged on the stirring shaft, the stirring shaft is rotatably arranged in the inner cylinder, a first synchronous wheel is coaxially fixed on the stirring shaft, a first gear is coaxially fixed to the rotating sprocket, the first gear is meshed with a second gear, the second gear is coaxially fixed with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

[0010] By adopting the above technical solution, when the rotary mechanism drives the inner cylinder to rotate, the first gear rotates synchronously, thereby driving the second gear to rotate, the second gear rotates to drive the second synchronous wheel to rotate, the second synchronous wheel rotates to drive the first synchronous wheel to rotate through the synchronous belt transmission, and the first synchronous wheel rotates to drive the stirring shaft to rotate, thereby achieving the purpose of setting the rotation direction of the inner cylinder opposite to the stirring direction of the stirring mechanism. In this application, the stirring mechanism and the rotary mechanism share a driving source, and the stirring mechanism stirs synchronously when the inner cylinder rotates, which is beneficial to shorten the response time of the two and improve energy efficiency.

[0011] Optionally, the stirring frame is provided with a plurality of scrapers, and the scrapers abut against the inner wall of the inner cylinder.

[0012] By adopting the above technical solution, the rotation of the stirring shaft and the stirring frame can drive the scraper to rotate, and the rotation of the scraper can scrape the inner wall of the inner cylinder, so that the lactose crystals adhering to the inner wall of the inner cylinder can be scraped off, further reducing the possibility of lactose crystals adhering to the wall. In addition, when cleaning the inner cylinder, the scraper can scrape and clean the inner wall of the cylinder, which is convenient for improving the cleaning efficiency of the drying equipment.

[0013] Optionally, a plurality of the scrapers are arranged in a circular array to form a scraping and sweeping assembly, and a plurality of the scraping and sweeping assemblies are arranged at equal distances along the axial direction of the stirring shaft. The scrapers are rotatably connected to the stirring frame, and the stirring frame is provided with a torsion spring. The torsion springs are arranged in one-to-one correspondence with the scrapers, and one end of each torsion spring is fixed to the stirring frame, and the other end is fixed to the corresponding scraper to press the corresponding scraper against the inner wall of the inner cylinder.

[0014] By adopting the above technical solution, due to the dimensional tolerance of the inner cylinder and the stirring mechanism, and after long-term use, the scraper and the inner wall of the inner cylinder will be worn, which will lead to a gap between the scraper and the inner wall of the inner cylinder. By setting the torsion spring, it is convenient to always keep the scraper in contact with the inner wall of the inner cylinder, thereby ensuring the scraping effect of the scraper on the inner wall of the inner cylinder.

[0015] Optionally, the stirring shaft is provided with a traction mechanism for simultaneously pulling all scrapers away from the inner wall of the inner cylinder.

[0016] By adopting the above technical solution, all scrapers can be pulled away from the inner wall of the inner cylinder by the traction mechanism at the same time, so that whether the scrapers are against the inner wall of the inner cylinder can be adjusted according to actual production needs, avoiding the scrapers and the cylinder wall of the inner cylinder being in a state of mutual wear, thereby improving the service life of the drying equipment.

[0017] Optionally, the traction mechanism includes a rotating ring and a traction rope, the rotating ring and the scraping assembly are arranged in a one-to-one correspondence, the traction rope and the scraper are arranged in a one-to-one correspondence, the rotating ring is rotatably connected to the outside of the stirring shaft, one end of all the traction ropes corresponding to the same scraping assembly are commonly connected to the corresponding rotating ring, and the other end is detachably connected to the respective corresponding scrapers, the rotating ring is provided with a winding groove for the traction rope to be wound around, the adjacent rotating rings are connected by a connecting piece, and the opposite ends of the two outermost rotating rings are provided with an adjusting sleeve, each of the adjusting sleeves has a plurality of adjusting holes arranged in a fan-shaped array, the stirring shaft is provided with a screw hole corresponding to the adjusting sleeve, the screw hole is threadedly connected with a locking bolt, and the locking bolt passes through one of the corresponding adjustment holes.

[0018] By adopting the above technical solution, all rotating sleeves can be driven to rotate synchronously by rotating the adjusting sleeves on both sides, and the rotation of the rotating sleeve can drive one end of the corresponding traction rope to be wound around the winding groove, so that the other end of the traction rope can pull the scraper, thereby driving the scraper to deflect a certain angle and separate from the inner wall of the inner cylinder. In addition, after the scraper is separated from the inner wall of the inner cylinder, it follows the stirring frame to stir the lactose crystal raw material. By setting a plurality of adjustment holes, it is convenient to adjust the inclination angle of the scraper according to factors such as the humidity of the lactose crystal raw material, thereby improving the turning effect of the lactose crystal raw material.

[0019] Optionally, the heat source device includes an induced draft fan and a constant temperature heating box arranged at the air outlet of the induced draft fan, a heating element is arranged in the constant temperature heating box, an air inlet pipe is arranged at the end of the constant temperature heating box away from the induced draft fan, the end of the air inlet pipe away from the constant temperature heating box is connected with one side of the interlayer, the other side of the interlayer is connected with an air outlet pipe, the air outlet pipe is connected with the air inlet of the induced draft fan, the inner cylinder is densely covered with ventilation holes for conducting the interlayer, the ventilation holes are arranged in a trumpet shape, and the small end of the ventilation hole is arranged inward and the large end is arranged outward.

[0020] By adopting the above technical solution, the constant temperature heating box can heat the airflow to generate hot air, and the hot air enters the interlayer through the air inlet pipe, which can dry the lactose crystals in the inner cylinder and generate heat exchange. The airflow temperature in the interlayer is reduced, and the airflow with a lower temperature in the interlayer can be extracted through the induced draft fan and the air outlet pipe and introduced into the constant temperature heating box for reheating, so as to realize hot air circulation, save energy and improve the drying efficiency of the drying equipment. The ventilation holes in the present application are arranged in the form of trumpet holes, which have the effect of guiding the airflow from the large end to the small end, which is conducive to the hot air staying in the inner cylinder for a longer time, ensuring that the lactose crystals are fully in contact with the hot air, and ensuring the drying efficiency of the drying equipment.

[0021] Optionally, the air inlet pipe is connected to the middle position of one side in the length direction of the interlayer, and the air outlet pipe is connected to the middle position of the other side in the length direction of the interlayer. A plurality of guide mechanisms are provided in the interlayer, and the guide mechanisms include a forward guide impeller and a rearward guide impeller. The guide directions of the forward guide impeller and the rearward guide impeller are arranged in opposite directions. The forward guide impeller and the rearward guide impeller are arranged on both sides of the central cross-section of the interlayer. A driving mechanism for driving the forward guide impeller and the rearward guide impeller to rotate is provided in the interlayer.

[0022] By adopting the above technical solution, after the hot air enters the interlayer from the air inlet pipe, the forward guide impeller and the rearward guide impeller can be driven to rotate through the driving mechanism, and the guide directions of the forward guide impeller and the rearward guide impeller are arranged in opposite directions, which is convenient for quickly guiding the hot air from the middle of the interlayer to the two ends of the interlayer respectively, thereby improving the temperature uniformity of the hot air in the interlayer, and further improving the drying uniformity of the drying equipment.

[0023] Optionally, the driving mechanism includes a driving rod and a driving gear arranged in the interlayer, the driving rod is fixedly connected in series with the corresponding forward guide impeller and the rear guide impeller, the two ends of the driving rod are respectively rotatably arranged at the two ends of the outer cover shell, the driving gear is coaxially fixed to the driving rod, and a transmission gear ring is fixed on the outer side of the inner cylinder, and the driving gear and the transmission gear ring are meshed.

[0024] By adopting the above technical solution, when the rotary mechanism drives the inner cylinder to rotate, it synchronously drives the transmission ring gear to rotate, the rotation of the transmission ring gear drives the driving gear to rotate, the rotation of the driving gear drives the driving rod to rotate, and the rotation of the driving rod drives the forward guide impeller and the rearward guide impeller to rotate, thereby facilitating the hot air to move quickly from the middle of the interlayer to the two ends of the interlayer, thereby improving the temperature uniformity of the hot air in the interlayer.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the drying device is used, the lactose crystal raw material is put into the inner cylinder, the temperature in the interlayer can be heated and heated by the heat source device, and the lactose crystal raw material can be stirred by the stirring mechanism, so as to realize the drying of the lactose crystal raw material. The inner cylinder is driven to rotate by the rotary mechanism, so as to further drive the lactose crystal raw material to realize the action of turning and lifting the material, so as to facilitate the lactose crystal to fully and evenly contact the interlayer, thereby improving the drying efficiency; and the rotation direction of the inner cylinder in the present application rotates in the opposite direction to the stirring direction of the stirring mechanism, which can greatly increase the relative speed between the inner wall of the inner cylinder and the stirring mechanism on the one hand, thereby generating a higher shear rate, so as to effectively break the agglomeration and agglomeration of the lactose crystals; on the other hand, when the inner cylinder and the stirring mechanism move in the opposite direction, the lactose crystals are subjected to a bidirectional force, and it is difficult to adhere to the surface of either side, thereby reducing the possibility of the lactose crystals sticking to the wall.

[0026] 2. Through the setting of the scraper, the rotation of the stirring shaft and the stirring frame can drive the scraper to rotate, and the rotation of the scraper can scrape the inner wall of the inner cylinder, so that the lactose crystals adhering to the inner wall of the inner cylinder can be scraped off, further reducing the possibility of lactose crystals adhering to the wall. In addition, when cleaning the inner cylinder, the scraper can scrape and clean the inner wall of the cylinder, which is convenient for improving the cleaning efficiency of the drying equipment.

[0027] 3. Through the setting of the traction mechanism, by rotating the adjustment sleeves on both sides, all the rotating rings can be driven to rotate synchronously. The rotation of the rotating ring can drive one end of the corresponding traction rope to be wound around the winding groove, and then the other end of the traction rope pulls the scraper, thereby driving the scraper to deflect a certain angle and separate from the inner wall of the inner cylinder. In addition, after the scraper is separated from the inner wall of the inner cylinder, it follows the stirring frame to stir the lactose crystal raw material. By setting multiple adjustment holes, it is convenient to adjust the inclination angle of the scraper according to factors such as the humidity of the lactose crystal raw material, thereby improving the turning effect of the lactose crystal raw material.

[0028] 4. Through the rotation of the forward guide impeller and the rear guide impeller and the setting of the driving mechanism, after the hot air enters the interlayer from the air inlet pipe, the forward guide impeller and the rear guide impeller can be driven to rotate through the driving mechanism, and the guide directions of the forward guide impeller and the rear guide impeller are set in opposite directions, which is convenient for quickly guiding the hot air from the middle of the interlayer to the two ends of the interlayer, thereby improving the temperature uniformity of the hot air in the interlayer, and then improving the drying uniformity of the drying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of a drying device for lactose production according to an embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view showing the internal structure of the interlayer and the inner cylinder in the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the specific structure of the rotary mechanism in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the structure of the feed end shell and the feed port in the embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the structure of the stirring mechanism in the embodiment of the present application, wherein the inner cylinder has been cut.

[0034] Figure 6 It is a schematic diagram of the structure of the scraping assembly and the traction mechanism in the embodiment of the present application.

[0035] Figure 7 It is a schematic diagram of the structure of the adjustment sleeve and the adjustment hole in the embodiment of the present application, wherein the adjustment sleeve has been cut.

[0036] Figure 8 It is a structural schematic diagram reflecting the connection method between the traction rope and the scraper in the embodiment of the present application.

[0037] Fig. 9 It is a schematic diagram of the specific structure of the heat source device in the embodiment of the present application.

[0038] Fig.10 It is a schematic diagram of the inner cylinder and the ventilation holes in the embodiment of the present application.

[0039] Fig.11 It is a schematic diagram of the specific structure of the guide mechanism and the driving mechanism in the embodiment of the present application.

[0040] Explanation of the reference numerals: 1. frame; 2. inner cylinder; 21. ventilation hole; 22. transmission gear ring; 3. outer cover shell; 31. interlayer; 32. feed end shell; 321. feed port; 33. discharge end shell; 331. discharge port; 34. driving mechanism; 341. driving rod; 342. driving gear; 4. heat source device; 41. induced draft fan; 42. constant temperature heating box; 421. heating element; 43. air inlet pipe; 44. air outlet pipe; 5. rotating mechanism; 51. rotating motor; 52. rotating sprocket; 53. rotating gear ring; 54. transmission chain; 55. A gear; 56, a second gear; 57, a second synchronous wheel; 6, a stirring mechanism; 61, a stirring shaft; 611, a screw hole; 612, a locking bolt; 62, a stirring frame; 621, a torsion spring; 63, a first synchronous wheel; 64, a synchronous belt; 7, a scraping assembly; 71, a scraper; 711, a connecting buckle; 8, a traction mechanism; 81, a rotating ring; 811, a winding wire groove; 82, a traction rope; 821, a connecting hook; 83, a connecting piece; 84, an adjusting sleeve; 841, an adjusting hole; 9, a guide mechanism; 91, a forward guide impeller; 92, a backward guide impeller. DETAILED DESCRIPTION

[0041] The following combination Figure 1-Figure 11 , further details of this application are given.

[0042] Example: The present application embodiment discloses a drying device for lactose production. Figure 1 and Figure 2 A drying device for lactose production includes a frame 1, an inner cylinder 2 and an outer cover shell 3, wherein the outer cover shell 3 is fixed to the frame 1, and the inner cylinder 2 is rotatably connected to the outer cover shell 3. The outer cover shell 3 is arranged on the outer side of the inner cylinder 2, and an interlayer 31 is arranged between the outer cover shell 3 and the inner cylinder 2, and the interlayer 31 is connected to a heat source device 4. A rotating mechanism 5 is arranged on the outer cover shell 3, and the rotating mechanism 5 is connected to the inner cylinder 2 and is used to drive the inner cylinder 2 to rotate. A stirring mechanism 6 is arranged in the inner cylinder 2, and the rotation direction of the inner cylinder 2 is arranged opposite to the stirring direction of the stirring mechanism 6.

[0043] When using the drying device, the lactose crystal raw material is put into the inner cylinder 2, the temperature in the interlayer 31 can be heated and heated by the heat source device 4, and the lactose crystal raw material can be stirred by the stirring mechanism 6, so as to achieve the drying of the lactose crystal raw material. The inner cylinder 2 is driven to rotate by the rotary mechanism 5, which is convenient for further driving the lactose crystal raw material to realize the action of turning and lifting the material, and is convenient for promoting the lactose crystal to fully and evenly contact the interlayer 31, thereby improving the drying efficiency; and the rotation direction of the inner cylinder 2 in the present application rotates in the opposite direction to the stirring direction of the stirring mechanism 6, on the one hand, the relative speed between the inner wall of the inner cylinder 2 and the stirring mechanism 6 can be greatly increased, thereby generating a higher shear rate, which is convenient for effectively breaking the agglomeration and agglomeration of the lactose crystals; on the other hand, when the inner cylinder 2 and the stirring mechanism 6 move in the opposite direction, the lactose crystals are subjected to a bidirectional force, and it is difficult to adhere to the surface of either side, reducing the possibility of the lactose crystals sticking to the wall.

[0044] Reference Figure 1 , Figure 3 and Figure 4 The rotary mechanism 5 includes a rotary motor 51, a rotary sprocket 52 and a rotary ring gear 53. The rotary motor 51 is fixed on the outer cover shell 3. The rotary sprocket 52 is coaxially fixed with the output end of the rotary motor 51. The rotary ring gear 53 is coaxially fixed to the outer side of the inner cylinder 2. The rotary sprocket 52 is connected to the rotary ring gear 53 through a transmission chain 54. A feed end shell 32 for sealing one end of the inner cylinder 2 is installed at one end of the outer cover shell 3, and a discharge end shell 33 for sealing the other end of the inner cylinder 2 is installed at the other end. A feed port 321 is provided on the feed end shell 32, and a discharge port 331 is provided on the discharge end shell 33. Baffles can be set at the feed port 321 and the discharge port 331 according to the actual production requirements to ensure high-purity and efficient drying operations. When the rotary motor 51 rotates, it drives the rotary sprocket 52 to rotate. The rotary sprocket 52 drives the rotary gear ring 53 to rotate through the transmission chain 54, thereby achieving the purpose of driving the inner cylinder 2 to rotate.

[0045] Reference Figure 1 , Figure 3 and Figure 5 The stirring mechanism 6 includes a stirring shaft 61 and a stirring frame 62 fixed on the stirring shaft 61. The stirring shaft 61 is rotatably arranged in the inner cylinder 2. A first synchronous wheel 63 is coaxially fixed on the stirring shaft 61. A first gear 55 is coaxially fixed to the rotary sprocket 52. The first gear 55 is meshed with a second gear 56. The second gear 56 is rotatably arranged on the discharge end shell 33. The second gear 56 is coaxially fixed with a second synchronous wheel 57. The first synchronous wheel 63 and the second synchronous wheel 57 are connected by a synchronous belt 64.

[0046] When the rotary mechanism 5 drives the inner cylinder 2 to rotate, the first gear 55 rotates synchronously, and then drives the second gear 56 to rotate, and the second gear 56 rotates to drive the second synchronous wheel 57 to rotate, and the second synchronous wheel 57 rotates through the synchronous belt 64 to drive the first synchronous wheel 63 to rotate, and the first synchronous wheel 63 rotates to drive the stirring shaft 61 to rotate, so that the rotation direction of the inner cylinder 2 and the stirring direction of the stirring mechanism 6 are set in the opposite direction. In this application, the stirring mechanism 6 and the rotary mechanism 5 share a driving source, and the stirring mechanism 6 stirs synchronously when the inner cylinder 2 rotates, which is conducive to shortening the response time of the two and improving energy efficiency.

[0047] Reference Figure 2 and Figure 5 , a plurality of scrapers 71 are mounted on the stirring frame 62, and the scrapers 71 abut against the inner wall of the inner cylinder 2. When the stirring shaft 61 and the stirring frame 62 rotate, the scrapers 71 can be driven to rotate, and the rotation of the scrapers 71 can scrape the inner wall of the inner cylinder 2, so that the lactose crystals adhering to the inner wall of the inner cylinder 2 can be scraped off, further reducing the possibility of the lactose crystals adhering to the wall. In addition, when cleaning the inner cylinder 2, the scrapers 71 can scrape and clean the inner wall of the cylinder, which is convenient for improving the cleaning efficiency of the drying equipment.

[0048] Reference Figure 5 and Figure 6 , a plurality of scrapers 71 are arranged in a circular array to form a scraping assembly 7, and a plurality of scraping assemblies 7 are arranged at equal distances along the axial direction of the stirring shaft 61, and the scrapers 71 are rotatably connected to the stirring frame 62, and a torsion spring 621 is installed on the stirring frame 62, and the torsion spring 621 is arranged one-to-one with the scrapers 71, and one end of each torsion spring 621 is fixed to the stirring frame 62, and the other end is fixed to the corresponding scraper 71, so as to press the corresponding scraper 71 against the inner wall of the inner cylinder 2. Due to the dimensional tolerance of the inner cylinder 2 and the stirring mechanism 6, and after long-term use, the scraper 71 and the inner wall of the inner cylinder 2 will be worn, which will lead to a gap between the scraper 71 and the inner wall of the inner cylinder 2, and through the setting of the torsion spring 621, it is convenient to always press the scraper 71 against the inner wall of the inner cylinder 2, thereby ensuring the scraping effect of the scraper 71 on the inner wall of the inner cylinder 2.

[0049] Reference Figure 5-Figure 7 A traction mechanism 8 is provided on the stirring shaft 61 for simultaneously pulling all the scrapers 71 away from the inner wall of the inner cylinder 2. The traction mechanism 8 can simultaneously pull all the scrapers 71 away from the inner wall of the inner cylinder 2, so that it is possible to adjust whether the scrapers 71 are against the inner wall of the inner cylinder 2 according to actual production needs, thereby avoiding the scrapers 71 and the cylinder wall of the inner cylinder 2 being in a state of mutual wear, thereby improving the service life of the drying equipment.

[0050] Reference Figure 5-Figure 7The traction mechanism 8 includes a rotating ring 81 and a traction rope 82. The rotating ring 81 is arranged in a one-to-one correspondence with the scraping assembly 7, and the traction rope 82 is arranged in a one-to-one correspondence with the scraper 71. The rotating ring 81 is rotatably connected to the outer side of the stirring shaft 61. One end of all the traction ropes 82 corresponding to the same scraping assembly 7 is commonly connected to the corresponding rotating ring 81, and the other end is detachably connected to the corresponding scraper 71. The rotating ring 81 is provided with a winding groove 811 for the traction rope 82 to be wound around. The adjacent rotating rings 81 are connected by a connecting piece 83. The opposite ends of the two outermost rotating rings 81 are fixed with adjusting sleeves 84. The adjusting sleeves 84 are coaxially sleeved on the outer side of the stirring shaft 61. Each adjusting sleeve 84 is arranged in a fan-shaped array with a plurality of adjusting holes 841. The stirring shaft 61 is provided with a screw hole 611 corresponding to the adjusting sleeve 84. The screw hole 611 is threadedly connected with a locking bolt 612, and the locking bolt 612 passes through one of the corresponding adjusting holes 841. In this embodiment, the connecting member 83 is a rod, and the traction rope 82 is a flexible steel wire rope.

[0051] Reference Figure 8 Specifically, a connecting hook 821 is fixed to one end of the traction rope 82 away from the rotating ring 81, and a connecting buckle 711 is fixed to one side of the scraper 71 close to the rotating ring 81. The connecting hook 821 is hooked on the connecting buckle 711, and the traction rope 82 and the corresponding scraper 71 are detachably connected.

[0052] When in use, by rotating the adjusting sleeves 84 on both sides, all the rotating rings 81 can be driven to rotate synchronously. The rotation of the rotating ring 81 can drive one end of the corresponding traction rope 82 to be wound around the winding groove 811, so that the other end of the traction rope 82 can pull the scraper 71, thereby driving the scraper 71 to deflect a certain angle and separate from the inner wall of the inner cylinder 2. In addition, after the scraper 71 is separated from the inner wall of the inner cylinder 2, it follows the stirring frame 62 to stir the lactose crystal raw material. By setting a plurality of adjustment holes 841 and locking bolts 612, it is convenient to adjust and lock the inclination angle of the scraper 71 according to factors such as the humidity of the lactose crystal raw material, thereby improving the turning effect of the lactose crystal raw material.

[0053] Reference Figure 1 , Figure 2 , Figure 4 , Fig. 9 and Fig.10The heat source device 4 includes an induced draft fan 41 and a constant temperature heating box 42 connected to the air outlet of the induced draft fan 41. A heating element 421 is installed in the constant temperature heating box 42. The end of the constant temperature heating box 42 away from the induced draft fan 41 is connected to an air inlet pipe 43. The end of the air inlet pipe 43 away from the constant temperature heating box 42 is connected to one side of the interlayer 31. The other side of the interlayer 31 is connected to an air outlet pipe 44. The air outlet pipe 44 is connected to the air inlet of the induced draft fan 41. The inner cylinder 2 is densely covered with ventilation holes 21 for conducting the interlayer 31. The ventilation holes 21 are arranged in a trumpet shape, and the small end of the ventilation holes 21 is arranged inward and the large end is arranged outward. In this embodiment, the heating element 421 is an electric heating tube. The airflow can be heated by the constant temperature heating box 42 to generate hot air, and the hot air enters the interlayer 31 through the air inlet pipe 43, which can dry the lactose crystals in the inner cylinder 2 and generate heat exchange, and the air flow temperature in the interlayer 31 is reduced. The airflow with a lower temperature in the interlayer 31 can be extracted by the induced draft fan 41 and the air outlet pipe 44 and introduced into the constant temperature heating box 42 for reheating, so as to realize hot air circulation, facilitate energy saving and improve the drying efficiency of the drying equipment. In the present application, the ventilation hole 21 is arranged in the form of a trumpet hole, which has the effect of guiding the airflow from the large end to the small end, which is conducive to the hot air staying in the inner cylinder 2 for a longer time, ensuring that the lactose crystals are fully in contact with the hot air, and ensuring the drying efficiency of the drying equipment.

[0054] Reference Figure 2 and Fig.11 The air inlet pipe 43 is connected to the middle position of one side in the length direction of the interlayer 31, and the air outlet pipe 44 is connected to the middle position of the other side in the length direction of the interlayer 31. A plurality of guide mechanisms 9 are arranged in the interlayer 31. The guide mechanism 9 includes a forward guide vane 91 and a rearward guide vane 92. The guide directions of the forward guide vane 91 and the rearward guide vane 92 are arranged in opposite directions. The forward guide vane 91 and the rearward guide vane 92 are arranged on both sides of the central cross-section of the interlayer 31. A driving mechanism 34 for driving the forward guide vane 91 and the rearward guide vane 92 to rotate is provided in the interlayer 31. After the hot air enters the interlayer 31 from the air inlet pipe 43, the forward guide impeller 91 and the rearward guide impeller 92 can be driven to rotate through the driving mechanism 34, and the guide directions of the forward guide impeller 91 and the rearward guide impeller 92 are arranged in opposite directions, so as to facilitate the hot air to be quickly guided from the middle of the interlayer 31 to the two ends of the interlayer 31, thereby improving the temperature uniformity of the hot air in the interlayer 31, and further improving the drying uniformity of the drying equipment.

[0055] Reference Fig.11The driving mechanism 34 includes a driving rod 341 and a driving gear 342 disposed in the interlayer 31. The driving rod 341 is fixedly connected in series with the corresponding forward guide impeller 91 and the backward guide impeller 92. The two ends of the driving rod 341 are respectively rotatably disposed at the two ends of the outer cover shell 3. The driving gear 342 is coaxially fixed on the driving rod 341. A transmission gear ring 22 is fixed on the outer side of the inner cylinder 2. The driving gear 342 is meshed with the transmission gear ring 22. When the rotary mechanism 5 drives the inner cylinder 2 to rotate, the transmission gear ring 22 is synchronously driven to rotate. The rotation of the transmission gear ring 22 drives the driving gear 342 to rotate. The rotation of the driving gear 342 drives the driving rod 341 to rotate. The rotation of the driving rod 341 drives the forward guide impeller 91 and the backward guide impeller 92 to rotate, thereby facilitating the rapid movement of hot air from the middle of the interlayer 31 to the two ends of the interlayer 31, thereby improving the temperature uniformity of the hot air in the interlayer 31.

[0056] The implementation principle of a drying device for lactose production in the embodiment of the present application is as follows: when the drying device is used, the lactose crystal raw material is put into the inner cylinder 2, the temperature in the interlayer 31 can be heated and heated by the heat source device 4, and the lactose crystal raw material can be stirred by the stirring mechanism 6, so as to realize the drying of the lactose crystal raw material. The inner cylinder 2 is driven to rotate by the rotary mechanism 5, so as to further drive the lactose crystal raw material to realize the action of turning and lifting the material, so as to facilitate the lactose crystal to fully and evenly contact the interlayer 31, thereby improving the drying efficiency; and the rotation direction of the inner cylinder 2 in the present application rotates in the opposite direction to the stirring direction of the stirring mechanism 6, on the one hand, the relative speed between the inner wall of the inner cylinder 2 and the stirring mechanism 6 can be greatly increased, thereby generating a higher shear rate, so as to effectively break the agglomeration and agglomeration of the lactose crystals; on the other hand, when the inner cylinder 2 and the stirring mechanism 6 move in the opposite direction, the lactose crystals are subjected to a bidirectional force, and it is difficult to adhere to the surface of either side, thereby reducing the possibility of the lactose crystals sticking to the wall.

[0057] By setting the scraper 71, the rotation of the stirring shaft 61 and the stirring frame 62 can drive the scraper 71 to rotate, and the rotation of the scraper 71 can scrape the inner wall of the inner cylinder 2, so that the lactose crystals adhering to the inner wall of the inner cylinder 2 can be scraped off, further reducing the possibility of the lactose crystals adhering to the wall. In addition, when cleaning the inner cylinder 2, the scraper 71 can scrape and clean the inner wall of the cylinder, which is convenient for improving the cleaning efficiency of the drying equipment.

[0058] By setting the traction mechanism 8, the scraper 71 can be driven to deflect a certain angle and separate from the inner wall of the inner cylinder 2. In addition, after the scraper 71 is separated from the inner wall of the inner cylinder 2, it follows the stirring frame 62 to stir the lactose crystal raw material. By setting a plurality of adjustment holes 841, the inclination angle of the scraper 71 can be adjusted according to factors such as the humidity of the lactose crystal raw material, thereby improving the turning effect of the lactose crystal raw material.

[0059] In addition, in the embodiment of the present application, the forward guide impeller 91 and the rearward guide impeller 92 are rotated and the driving mechanism 34 is set. After the hot air enters the interlayer 31 from the air inlet pipe 43, the driving mechanism 34 can drive the forward guide impeller 91 and the rearward guide impeller 92 to rotate. The guide directions of the forward guide impeller 91 and the rearward guide impeller 92 are set in opposite directions, which is convenient for quickly guiding the hot air from the middle of the interlayer 31 to the two ends of the interlayer 31, thereby improving the temperature uniformity of the hot air in the interlayer 31, and further improving the drying uniformity of the drying equipment.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drying device for lactose production, characterized in that: include: Inner cylinder (2); An outer cover shell (3) is arranged on the outer side of the inner cylinder (2), and the inner cylinder (2) and the outer cover shell (3) are rotatably connected, and an interlayer (31) is provided between the outer cover shell (3) and the inner cylinder (2); A heat source device (4) is connected to the interlayer (31); The rotary mechanism (5) comprises a rotary motor (51), a rotary sprocket (52) and a rotary gear ring (53), wherein the rotary motor (51) is arranged on the outer housing (3), the rotary sprocket (52) is coaxially fixed with the output end of the rotary motor (51), the rotary gear ring (53) is coaxially fixed to the outer side of the inner cylinder (2), and the rotary sprocket (52) is transmission-connected with the rotary gear ring (53) via a transmission chain (54); The stirring mechanism (6) comprises a stirring shaft (61) and a stirring frame (62) arranged on the stirring shaft (61); the stirring shaft (61) is rotatably arranged in the inner cylinder (2); a first synchronous wheel (63) is coaxially fixed on the stirring shaft (61); a first gear (55) is coaxially fixed on the rotary sprocket (52); the first gear (55) is meshed with a second gear (56); a second synchronous wheel (57) is coaxially fixed on the second gear (56); the first synchronous wheel (63) and the second synchronous wheel (57) are connected via a synchronous belt (64).

2. A drying device for lactose production according to claim 1, characterized in that: The stirring frame (62) is provided with a plurality of scrapers (71), and the scrapers (71) abut against the inner wall of the inner cylinder (2).

3. A drying device for lactose production according to claim 2, characterized in that: A plurality of scrapers (71) are arranged in a circular array to form a scraping assembly (7). A plurality of scraping assemblies (7) are arranged at equal distances along the axial direction of the stirring shaft (61). The scrapers (71) are rotatably connected to the stirring frame (62). The stirring frame (62) is provided with a torsion spring (621). The torsion spring (621) and the scrapers (71) are arranged in a one-to-one correspondence. One end of each torsion spring (621) is fixed to the stirring frame (62), and the other end is fixed to the corresponding scraper (71), so as to press the corresponding scraper (71) against the inner wall of the inner cylinder (2).

4. A drying device for lactose production according to claim 3, characterized in that: The stirring shaft (61) is provided with a traction mechanism (8) for simultaneously traction all scrapers (71) away from the inner wall of the inner cylinder (2).

5. A drying device for lactose production according to claim 4, characterized in that: The traction mechanism (8) comprises a rotating collar (81) and a traction rope (82), wherein the rotating collar (81) and the scraping assembly (7) are arranged in a one-to-one correspondence, and the traction rope (82) and the scraping plate (71) are arranged in a one-to-one correspondence, and the rotating collar (81) is rotatably connected to the outer side of the stirring shaft (61), and one end of all the traction ropes (82) corresponding to the same scraping assembly (7) are commonly connected to the corresponding rotating collar (81), and the other end is detachably connected to the corresponding scraping plate (71), and the rotating collar (81) is provided with a traction rope (82) 82) is wound around a winding wire groove (811), the adjacent rotating rings (81) are connected by a connecting piece (83), and the opposite ends of the two outermost rotating rings (81) are each provided with an adjusting sleeve (84), and each adjusting sleeve (84) is arranged in a fan-shaped array with a plurality of adjusting holes (841), and the stirring shaft (61) is provided with a screw hole (611) corresponding to the adjusting sleeve (84), and the screw hole (611) is threadedly connected with a locking bolt (612), and the locking bolt (612) passes through one of the corresponding adjusting holes (841).

6. A drying device for lactose production according to claim 1, characterized in that: The heat source device (4) comprises an induced draft fan (41) and a constant temperature heating box (42) arranged at the air outlet of the induced draft fan (41); a heating element (421) is arranged in the constant temperature heating box (42); an air inlet pipe (43) is arranged at one end of the constant temperature heating box (42) away from the induced draft fan (41); the end of the air inlet pipe (43) away from the constant temperature heating box (42) is connected to one side of the interlayer (31); the other side of the interlayer (31) is connected to an air outlet pipe (44); the air outlet pipe (44) is connected to the air inlet of the induced draft fan (41); the inner cylinder (2) is densely covered with ventilation holes (21) for conducting the interlayer (31); the ventilation holes (21) are arranged in a trumpet shape, and the small end of the ventilation holes (21) faces inwards and the large end faces outwards.

7. A drying device for lactose production according to claim 6, characterized in that: The air inlet pipe (43) is connected to a middle position of one side in the length direction of the interlayer (31), and the air outlet pipe (44) is connected to a middle position of the other side in the length direction of the interlayer (31). A plurality of flow guide mechanisms (9) are provided in the interlayer (31). The flow guide mechanisms (9) include a forward flow guide impeller (91) and a backward flow guide impeller (92). The forward flow guide impeller (91) and the backward flow guide impeller (92) are arranged in opposite directions. The forward flow guide impeller (91) and the backward flow guide impeller (92) are arranged on both sides of a central cross section of the interlayer (31). A driving mechanism (34) for driving the forward flow guide impeller (91) and the backward flow guide impeller (92) to rotate is provided in the interlayer (31).

8. A drying device for lactose production according to claim 7, characterized in that: The driving mechanism (34) comprises a driving rod (341) and a driving gear (342) arranged in the interlayer (31); the driving rod (341) is fixedly connected in series with a corresponding forward guide impeller (91) and a backward guide impeller (92); two ends of the driving rod (341) are rotatably arranged at two ends of the outer casing (3); the driving gear (342) is coaxially fixed to the driving rod (341); a transmission gear ring (22) is fixed on the outer side of the inner cylinder (2); and the driving gear (342) and the transmission gear ring (22) are meshed.

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