Drying machine for preparing grease microcapsule powder

Abstract

The invention discloses a drying machine for grease microcapsule powder preparation, and relates to the technical field of drying equipment.The drying machine comprises a bottom plate, a mounting case is mounted at the upper end of the bottom plate, a discharging barrel is arranged in the mounting case, and upper supports are fixedly connected to the upper end and the lower end of the discharging barrel correspondingly; the positions, located below the upper supports, of the inner wall of the mounting machine box are fixedly connected with lower supports, springs are installed between the upper supports and the lower supports, a feeding barrel is arranged in the discharging barrel, and an adjusting mechanism used for adjusting the height of the feeding barrel is arranged on the discharging barrel. The cleaning mechanism can be matched with the hollow rotating shaft to conduct fixed-ring cleaning on the interiors of the feeding barrel and the discharging barrel during use, and powder attached to the inner walls of the discharging barrel and the feeding barrel can be effectively cleaned down through high-pressure air and vibration of the barrel walls during cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, specifically a dryer for the preparation of oil microcapsule powder. Background Technique

[0002] A microcapsule refers to a micro container or package with a polymer wall shell, generally with a size of 5 - 200 μm. The microencapsulation technology refers to the technology of embedding solids, liquids or gases in small and sealed capsules, so that they will only be released at a controlled rate under specific conditions; among them, the embedded substance is called the core material, and the substance that embeds the core material to achieve microencapsulation is called the wall material. When preparing oil microcapsule powder, sodium caseinate and maltodextrin are used as the wall material and added to peanut oil bodies to embed the oil, which can improve the oxidation stability. The drying treatment is carried out by spray drying. When applied, first, the core material is dispersed in the liquefied wall material to form a solution, and then an emulsifier is added. The emulsifiers used are sucrose esters and monoglycerides. After thermal dispersion and homogenization, it becomes an oil-in-water emulsion, and finally spray drying is carried out.

[0003] When carrying out spray drying, a dryer needs to be used. For example, a spray dryer proposed in the existing authorized publication number CN116271886B includes a drying tower and a feeding system that transports materials into the drying tower through an atomizer. The drying tower includes a cylindrical tower body and an inverted conical tower bottom. A volute hot air distributor connected to the air supply system is provided at the top of the cylindrical tower body. This device prevents powder sticking to the wall by setting a blowing mechanism inside the drying tower.

[0004] Although the above dryer can prevent the problem of powder sticking to the wall to a certain extent, since the powder fills the drying tower, a large amount of powder still adheres to the blowing rod and the blowing rod support. These powders cannot be removed by the blowing rod itself and still need to be processed manually later. At the same time, the temperature of the tower wall of the drying tower will also affect the feeding of the powder. The higher the temperature of the tower wall, the greater the possibility of powder adhesion, and vice versa. In actual application, the tower wall is continuously baked by hot air, and its surface temperature is relatively high, which further aggravates the wall sticking phenomenon. In view of the above problems, we provide a dryer for the preparation of oil microcapsule powder. Summary of the Invention

[0005] The purpose of the present invention is to provide a dryer for the preparation of oil microcapsule powder to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: The dryer for preparing oil microcapsule powder includes a bottom plate. An installation chassis is installed at the upper end of the bottom plate. A blanking barrel is arranged inside the installation chassis. Upper supports are fixedly connected to both the upper end and the lower end of the blanking barrel. Lower supports are fixedly connected to the inner wall of the installation chassis at positions below the upper supports. Springs are installed between the upper supports and the lower supports. An upper feeding barrel is arranged inside the blanking barrel. An adjusting mechanism for adjusting the height of the upper feeding barrel is arranged on the blanking barrel. A hollow rotating shaft is rotatably connected to the middle of the upper end of the upper feeding barrel. A plurality of strip-shaped nozzles are communicated with the lower end of the hollow rotating shaft. Strip-shaped spray openings are arranged at the lower ends of the strip-shaped nozzles. A cross frame is fixedly connected to the position inside the upper feeding barrel below the strip-shaped nozzles. An atomizing nozzle is arranged in the middle of the cross frame. A liquid supply mechanism for supplying liquid to the atomizing nozzle is arranged on the installation chassis. A heat supply mechanism for conveying hot air to the hollow rotating shaft is arranged on one side of the installation chassis. A driving mechanism for driving the hollow rotating shaft to rotate is arranged on the upper feeding barrel. A collecting mechanism for collecting powder is connected to the lower port of the blanking barrel. A cleaning mechanism for preventing powder from adhering to the inner wall is arranged on the upper feeding barrel and the blanking barrel.

[0007] As a further scheme of the present invention: The adjusting mechanism includes an upper sealing ring and a three-way electromagnetic reversing valve. The upper sealing ring is fixedly connected to the upper end inner wall of the blanking barrel. A lower sealing ring is also fixedly connected to the inner wall of the blanking barrel near the middle. A piston sliding ring is fixedly connected to the position on the outer wall of the upper feeding barrel between the upper sealing ring and the lower sealing ring. The piston sliding ring is slidably connected to the inner wall of the blanking barrel. The upper sealing ring and the lower sealing ring are both slidably connected to the upper feeding barrel. Sealing rings are arranged on the upper sealing ring, the piston sliding ring and the lower sealing ring. An air compressor is also installed at one end of the bottom plate. The output end of the air compressor is connected with an output pipe. The output pipe is connected with the air inlet of the three-way electromagnetic reversing valve. Inflatable pipes are arranged on one side of the upper sealing ring and the lower sealing ring. The ends of the two inflatable pipes far away from the blanking barrel are respectively communicated with the two outlets of the three-way electromagnetic reversing valve. Air discharge pipes are arranged at the positions on the other side of the upper sealing ring and the lower sealing ring. Solenoid valves are arranged on the air discharge pipes.

[0008] As a further scheme of the present invention: The liquid supply mechanism includes a liquid hopper. The liquid hopper is installed at the lower end of one side of the installation chassis. A transfer pump is installed inside the installation chassis near the lower end of one side of the liquid hopper. Liquid supply hoses are connected to both the suction end and the discharge end of the transfer pump. The liquid supply hose on the suction end of the transfer pump is communicated with the liquid hopper. The barrel walls of the blanking barrel and the upper feeding barrel are both of a hollow structure. A lower coil pipe is arranged in the hollow cavity of the blanking barrel. An upper coil pipe is arranged in the hollow cavity of the upper feeding barrel. Heat conducting materials are filled in the hollow cavities of the blanking barrel and the upper feeding barrel. An intermediate hose for communication is arranged between the upper coil pipe and the heat conducting material. The outlet end of the upper coil pipe is connected with an upper communication pipe. The upper communication pipe is communicated with the atomizing nozzle. The liquid supply hose at the output end of the transfer pump is connected with one end interface of the lower coil pipe.

[0009] As a further solution of the present invention: The heating mechanism includes a hot air blower and a rotary joint. The hot air blower is installed at the lower end on one side of the installation chassis. The output end of the hot air blower is connected with a air supply hose. The air outlet interface of the rotary joint is communicated with the upper end of the hollow rotating shaft, and the upper end of the air supply hose is communicated with the air inlet interface of the rotary joint.

[0010] As a further solution of the present invention: The driving mechanism includes a driving motor. The driving motor is installed at a position on one side of the upper surface of the feeding bucket. The output end of the driving motor is installed with a motor gear. The position where the hollow rotating shaft penetrates through the feeding bucket is fixedly connected with a driving gear, and the motor gear meshes with the driving gear.

[0011] As a further solution of the present invention: The collecting mechanism includes a flexible pipe. The flexible pipe is connected to the lower port of the discharging bucket. The lower end of the flexible pipe is connected with a material guiding pipe. A cyclone separator is installed on one side of the installation chassis by a bracket. The material guiding pipe is communicated with the inlet of the cyclone separator. A collecting tank is threadedly connected to the powder outlet at the lower end of the cyclone separator. The air outlet end at the upper end of the cyclone separator is connected with a U-shaped pipe. One end of the U-shaped pipe far away from the cyclone separator is connected with a recovery cylinder. There is an opening on one side of the recovery cylinder, and a sealing arc door is rotatably connected in the opening. There is a door lock buckle fixed to the recovery cylinder on the sealing arc door. A filter tank is threadedly connected to the position where the lower end of the U-shaped pipe penetrates into the recovery cylinder. An air extraction fan is fixedly connected to the bottom plate at the position below the U-shaped pipe, and the air extraction end of the air extraction fan is communicated with the lower end of the recovery cylinder.

[0012] As a further solution of the present invention: The cleaning mechanism includes a gas distribution cylinder. The gas distribution cylinder is fixedly connected to a position on one side of the upper end of the feeding bucket. A sealing ring is fixedly connected in the middle of the gas distribution cylinder. A moving rod is slidably connected in the gas distribution cylinder. A sealing plate is fixedly connected to the position of the moving rod at one end inside the gas distribution cylinder. A return spring is arranged between the sealing plate and the inner wall of the gas distribution cylinder on the side away from the hollow rotating shaft of the moving rod. An L-shaped frame is fixedly connected to one side of the upper end of the feeding bucket. An air inlet hose is connected to the upper end of the L-shaped frame. One end of the air inlet hose is communicated with the output pipe, and the other end of the air inlet hose is communicated with the cavity of the gas distribution cylinder at one end close to the return spring. The cavity on the side of the gas distribution cylinder away from the return spring is connected with a first air pipe and a second air pipe. A first air blowing assembly for cleaning the inner wall of the feeding bucket is arranged on the first air pipe, and a second air blowing assembly for cleaning the inner wall of the discharging bucket is arranged on the second air pipe. A trigger button is arranged at the position of the L-shaped frame opposite to the moving rod. A cam cooperating with the moving rod is also arranged on the hollow rotating shaft. A roller is arranged at one end of the moving rod close to the cam. A plurality of vibration motors are installed on the outer wall of the discharging bucket.

[0013] As a further solution of the present invention: the second air blowing assembly includes a bottom annular pipe, the bottom annular pipe is arranged at the lower end of the lower sealing ring, the bottom annular pipe is communicated with the second air pipe, and a plurality of second air jets are arranged at the lower end of the bottom annular pipe.

[0014] As a further solution of the present invention: the first air blowing assembly includes a housing rotatably connected to the hollow rotating shaft, the first air pipe is communicated with the housing, an annular air pipe is fixedly connected to the upper end of the strip-shaped air nozzle, and a plurality of first air jets are communicated with the annular air pipe. A guide air pipe is arranged in the hollow rotating shaft, one end of the guide air pipe is communicated with the annular air pipe, the other end of the guide air pipe is communicated with the housing, and sealing rings are arranged at both ends of the housing.

[0015] As a further solution of the present invention: a maintenance box door is arranged on one side of the installation chassis, and a door lock buckle is arranged on the box door.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Through the arranged cleaning mechanism, the present invention can cooperate with the hollow rotating shaft to perform fixed-circle cleaning on the inside of the feeding barrel and the discharging barrel during use. During cleaning, by using high-pressure air and the vibration of the barrel wall, the powder adhered to the inner walls of the discharging barrel and the feeding barrel can be effectively cleaned off. At the same time, through the arranged liquid supply mechanism, while supplying liquid to the atomizing nozzle, the feeding barrel and the discharging barrel can be cooled to prevent the inner walls of the feeding barrel and the discharging barrel from being at high temperature, thereby reducing the possibility of powder sticking to the wall. At the same time, since heat exchange occurs with the barrel wall during liquid supply, the temperature of the liquid will be increased to a certain extent. The increase in temperature will increase the vapor pressure of water and accelerate the diffusion rate of water from the surface of the liquid to the surrounding hot air, thereby shortening the drying time and improving the drying efficiency. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the other side of the present invention.

[0019] Figure 3 It is a schematic internal structure diagram of the installation chassis of the present invention.

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the material barrel of the present invention.

[0021] Figure 5 It is a schematic partial cross-sectional structure diagram of the feeding barrel of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the adjusting mechanism of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the driving mechanism of the present invention.

[0024] Figure 8 This is a schematic structural diagram of the collection mechanism in the present invention.

[0025] Figure 9 This is a schematic internal structural diagram of the recycling cylinder in the present invention.

[0026] Figure 10 This is a schematic structural diagram of the heat supply mechanism in the present invention.

[0027] Figure 11 This is a schematic structural diagram of the cleaning mechanism in the present invention.

[0028] Figure 12 This is a schematic cross-sectional structural diagram of the air distribution cylinder in the present invention.

[0029] Figure 13 This is a schematic structural diagram of the second blowing assembly in the present invention.

[0030] Figure 14 This is a schematic structural diagram of the first blowing assembly in the present invention.

[0031] Figure 15 This is in the present invention Figure 14 The enlarged structural diagram at position A.

[0032] Wherein: 1, bottom plate; 2, spring; 3, collection mechanism; 4, drive mechanism; 5, cleaning mechanism; 6, adjustment mechanism; 7, liquid supply mechanism; 8, heat supply mechanism; 9, blanking bucket; 10, cross frame; 11, feeding bucket; 12, installation chassis; 13, hollow rotating shaft; 14, strip-shaped nozzle; 15, atomizing nozzle; 31, U-shaped pipe; 32, sealing arc door; 33, recycling cylinder; 34, induced draft fan; 35, collection tank; 36, flexible pipe; 37, material guiding pipe; 38, cyclone separator; 39, filter tank; 41, drive motor; 42, drive gear; 43, motor gear; 501, first blowing assembly; 502, cam; 503, air distribution cylinder; 504, L-shaped frame; 505, trigger button; 506, intake hose; 507, action rod; 508, first air pipe; 509, second air pipe; 510, second blowing assembly; 511, vibration motor; 512, sealing ring; 513, sealing plate; 514, return spring.

[0033] 5011, air guide pipe; 5012, first jet head; 5013, annular air pipe; 5014, sealing ring; 5015, housing; 5101, bottom ring pipe; 5102, second jet head; 61. Upper sealing ring; 62. Piston slip ring; 63. Solenoid valve; 64. Drain pipe; 65. Lower sealing ring; 66. Inflation pipe; 67. Three-way electromagnetic reversing valve; 68. Air compressor; 69. Output pipe; 71. Liquid hopper; 72. Transfer pump; 73. Liquid supply hose; 74. Upper connecting pipe; 75. Intermediate hose; 76. Lower coiled pipe; 77. Upper coiled pipe; 78. Heat-conducting material; 81. Hot air blower; 82. Air supply hose; 83. Rotary joint. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-15 , in the embodiment of the present invention, a dryer for preparing oil microcapsule powder includes a bottom plate 1, and an installation chassis 12 is installed at the upper end of the bottom plate 1. One side of the installation chassis 12 is provided with a maintenance box door, and a door lock is provided on the box door. By setting the maintenance door, it is convenient to repair the inner wall of the installation chassis 12, and the later maintenance is convenient.

[0036] A blanking bucket 9 is provided inside the installation chassis 12. Upper supports are fixedly connected to both the upper and lower ends of the blanking bucket 9. Lower supports are fixedly connected to the inner walls of the installation chassis 12 at positions below the upper supports. Springs 2 are installed between the upper supports and the lower supports. An upper feeding bucket 11 is provided inside the blanking bucket 9. An adjusting mechanism 6 for adjusting the height of the upper feeding bucket 11 is provided on the blanking bucket 9. A hollow rotating shaft 13 is rotatably connected to the middle of the upper end of the upper feeding bucket 11. A plurality of strip-shaped spray pipes 14 are communicated with the lower end of the hollow rotating shaft 13. Strip-shaped spray nozzles are provided at the lower ends of the strip-shaped spray pipes 14. A cross frame 10 is fixedly connected to the position inside the upper feeding bucket 11 below the strip-shaped spray pipes 14. An atomizing nozzle 15 is provided in the middle of the cross frame 10. A liquid supply mechanism 7 for supplying liquid to the atomizing nozzle 15 is provided on the installation chassis 12. A heat supply mechanism 8 for conveying hot air to the hollow rotating shaft 13 is provided on one side of the installation chassis 12. A driving mechanism 4 for driving the hollow rotating shaft 13 to rotate is provided on the upper feeding bucket 11. A collecting mechanism 3 for collecting powder is connected to the lower port of the blanking bucket 9. A cleaning mechanism 5 for preventing powder from adhering to the inner walls is provided on the upper feeding bucket 11 and the blanking bucket 9. During use, first adjust the height of the upper feeding bucket 11 according to process requirements by using the adjusting mechanism 6. Then, supply liquid to the inside of the atomizing nozzle 15 through the liquid supply mechanism 7, and the atomizing nozzle 15 atomizes and sprays the liquid material. At the same time, the heat supply mechanism 8 conveys hot air into the hollow rotating shaft 13, and the conveyed hot air sprays out from the strip-shaped spray nozzles at the lower ends of the strip-shaped spray pipes 14. At the same time, the driving mechanism 4 drives the hollow rotating shaft 13 to rotate, so that the hot air sprays out in a rotating manner, and thus can fully contact the sprayed liquid material, making the liquid material dry to form powder. The formed powder is collected by the collecting mechanism 3. At the same time, during the working process, the provided cleaning mechanism 5 continuously cleans the inner walls of the upper feeding bucket 11 and the blanking bucket 9 to prevent wall sticking.

[0037] The adjusting mechanism 6 includes an upper sealing ring 61 and a three-way electromagnetic reversing valve 67. The upper sealing ring 61 is fixedly connected to the upper end of the inner wall of the blanking barrel 9. A lower sealing ring 65 is also fixedly connected to the position near the middle of the inner wall of the blanking barrel 9. A piston sliding ring 62 is fixedly connected to the outer wall of the feeding barrel 11 at the position between the upper sealing ring 61 and the lower sealing ring 65. The piston sliding ring 62 is slidably connected to the inner wall of the blanking barrel 9. The upper sealing ring 61 and the lower sealing ring 65 are both slidably connected to the feeding barrel 11. Sealing rings are provided on the upper sealing ring 61, the piston sliding ring 62 and the lower sealing ring 65. An air compressor 68 is also installed at one end of the bottom plate 1. The output end of the air compressor 68 is connected to an output pipe 69. The output pipe 69 is connected to the air inlet of the three-way electromagnetic reversing valve 67. Inflating pipes 66 are provided on one side of the upper sealing ring 61 and the lower sealing ring 65. The two ends of the two inflating pipes 66 away from the blanking barrel 9 are respectively communicated with the two outlets of the three-way electromagnetic reversing valve 67. Air discharge pipes 64 are provided at the positions on the other side of the upper sealing ring 61 and the lower sealing ring 65. Solenoid valves 63 are provided on the air discharge pipes 64. When it is necessary to raise the feeding barrel 11, the three-way electromagnetic reversing valve 67 can switch the air path to the lower inflating pipe 66 to allow gas to enter the cavity between the lower sealing ring 65 and the piston sliding ring 62. At the same time, the solenoid valve 63 at the upper end is opened for exhaust, so that the feeding barrel 11 is raised. When it is necessary to lower it, the three-way electromagnetic reversing valve 67 switches the air path to the upper inflating pipe 66 to allow gas to enter the cavity between the piston sliding ring 62 and the upper sealing ring 61. At the same time, the solenoid valve 63 at the lower end exhausts, thereby realizing the downward adjustment of the feeding barrel 11. The change in the height of the feeding barrel 11 can change the duration of the liquid material falling and the drying duration, so that corresponding adjustments can be made according to different preparation processes of the oil microcapsule powder, improving the flexibility of use.

[0038] The liquid supply mechanism 7 includes a liquid hopper 71, which is installed at the lower end of one side of the installation chassis 12. A delivery pump 72 is installed at the lower end of the inner side of the installation chassis 12 near the liquid hopper 71. Both the suction end and the discharge end of the delivery pump 72 are connected with a liquid supply hose 73. The liquid supply hose 73 on the suction end of the delivery pump 72 is communicated with the liquid hopper 71. The barrel walls of the blanking barrel 9 and the feeding barrel 11 are both of a hollow structure. A lower coiled pipe 76 is arranged in the hollow cavity of the blanking barrel 9, and an upper coiled pipe 77 is arranged in the hollow cavity of the feeding barrel 11. The hollow cavities of the blanking barrel 9 and the feeding barrel 11 are both filled with a heat-conducting material 78. A middle hose 75 for communication is arranged between the upper coiled pipe 77 and the heat-conducting material 78. The outlet end of the upper coiled pipe 77 is connected with an upper connecting pipe 74, and the upper connecting pipe 74 is communicated with the atomizing nozzle 15. The liquid supply hose 73 at the output end of the delivery pump 72 is connected with one end interface of the lower coiled pipe 76. During operation, the delivery pump 72 pumps the liquid mixture completed in the liquid hopper 71 to the atomizing nozzle 15, so that the liquid can be atomized by the atomizing nozzle 15. At the same time, the liquid will pass through the lower coiled pipe 76 and the upper coiled pipe 77. When passing through the lower coiled pipe 76 and the upper coiled pipe 77, the liquid will exchange heat with the barrel wall, reducing the barrel wall temperature and at the same time increasing the liquid temperature. The increase in the liquid temperature will increase the vapor pressure of the water, accelerating the diffusion rate of the water from the liquid surface to the surrounding hot air, improving the drying effect, and the reduction of the barrel wall temperature will reduce the wall sticking situation.

[0039] The heat supply mechanism 8 includes a hot air blower 81 and a rotary joint 83. The hot air blower 81 is installed at the lower end of one side of the installation chassis 12. The output end of the hot air blower 81 is connected with a air supply hose 82. The air outlet interface of the rotary joint 83 is communicated with the upper end of the hollow rotating shaft 13, and the upper end of the air supply hose 82 is communicated with the air inlet interface of the rotary joint 83. During heat supply, the hot air blower 81 generates hot air, and the hot air is sent to the rotary joint 83 by the air supply hose 82, and then the rotary joint 83 sends the hot air to the hollow rotating shaft 13 to realize hot air supply.

[0040] The driving mechanism 4 includes a driving motor 41, which is installed at a position on the upper end face of the feeding barrel 11. An output end of the driving motor 41 is installed with a motor gear 43. A driving gear 42 is fixedly connected to the position where the hollow rotating shaft 13 passes through the feeding barrel 11. The motor gear 43 meshes with the driving gear 42. When driving the hollow rotating shaft 13, the driving motor 41 drives the motor gear 43 to rotate. The rotation of the motor gear 43 drives the driving gear 42, and the rotation of the driving gear 42 drives the hollow rotating shaft 13 to rotate.

[0041] The collection mechanism 3 includes a flexible pipe 36, which is connected to the lower port of the blanking bucket 9. The lower end of the flexible pipe 36 is connected with a material guiding pipe 37. A cyclone separator 38 is installed on one side of the installation chassis 12 by means of a bracket. The material guiding pipe 37 is communicated with the inlet of the cyclone separator 38. A collection tank 35 is threadedly connected to the powder outlet at the lower end of the cyclone separator 38. The air outlet end at the upper end of the cyclone separator 38 is connected with a U-shaped pipe 31. One end of the U-shaped pipe 31 away from the cyclone separator 38 is connected with a recovery cylinder 33. There is an opening on one side of the recovery cylinder 33, and a sealing arc door 32 is rotatably connected in the opening. A door lock buckle fixed to the recovery cylinder 33 is provided on the sealing arc door 32. A filter tank 39 is threadedly connected at the position where the lower end of the U-shaped pipe 31 penetrates into the recovery cylinder 33. An induced draft fan 34 is fixedly connected to the bottom plate 1 at the position below the U-shaped pipe 31. The air inlet end of the induced draft fan 34 is communicated with the lower end of the recovery cylinder 33; during collection, the induced draft fan 34 induces air, so that the powder at the bottom of the blanking bucket 9 enters the cyclone separator 38, and then the powder enters the collection tank 35 for collection under the action of the cyclone separator 38. The air flow and tiny powder enter the filter tank 39 for recovery. The filtered air is discharged from the induced draft fan 34. When the powder needs to be taken out, the collection tank 35 and the filter tank 39 can be removed.

[0042] The cleaning mechanism 5 includes an air distribution cylinder 503 which is fixedly connected to a position on one side of the upper end of the feeding barrel 11. A sealing ring 512 is fixedly connected to the middle inside the air distribution cylinder 503. An operating rod 507 is slidably connected inside the air distribution cylinder 503. A sealing plate 513 is fixedly connected to one end of the operating rod 507 located inside the air distribution cylinder 503. A return spring 514 is disposed through the operating rod 507 between the sealing plate 513 and the inner wall of the air distribution cylinder 503 on the side away from the hollow rotating shaft 13. An L-shaped frame 504 is fixedly connected to one side of the upper end of the feeding barrel 11. An air inlet hose 506 is connected to the upper end of the L-shaped frame 504. One end of the air inlet hose 506 communicates with the output pipe 69, and the other end of the air inlet hose 506 communicates with the cavity of the air distribution cylinder 503 near one end of the return spring 514. A first air pipe 508 and a second air pipe 509 are connected to the cavity of the air distribution cylinder 503 on the side away from the return spring 514. A first air blowing assembly 501 for cleaning the inner wall of the feeding barrel 11 is provided on the first air pipe 508, and a second air blowing assembly 510 for cleaning the inner wall of the discharging barrel 9 is provided on the second air pipe 509. A trigger button 505 is provided at a position of the L-shaped frame 504 opposite to the operating rod 507. A cam 502 cooperating with the operating rod 507 is further provided on the hollow rotating shaft 13. A roller is provided at one end of the operating rod 507 close to the cam 502. A plurality of vibration motors 511 are installed on the outer wall of the discharging barrel 9. During cleaning, the rotation of the hollow rotating shaft 13 drives the cam 502 to rotate. Each rotation of the cam 502 pushes the operating rod 507 to move once. Each movement of the operating rod 507 pushes the sealing plate 513 to open, so that high-pressure gas enters the second air blowing assembly 510 and the first air blowing assembly 501 respectively, realizing the cleaning of the barrel wall. Each time the operating rod 507 moves, it also squeezes the trigger button 505. After the trigger button 505 is triggered, the vibration motor 511 is started to vibrate the barrel wall, so that the barrel wall vibrates while being cleaned by air blowing, thereby improving the cleaning effect.

[0043] The second air blowing assembly 510 includes a bottom annular pipe 5101 which is arranged at the lower end of the lower sealing ring 65. The bottom annular pipe 5101 is communicated with a second air pipe 509. A plurality of second jet heads 5102 are arranged at the lower end of the bottom annular pipe 5101. The first air blowing assembly 501 includes a housing 5015 which is rotatably connected to the hollow rotating shaft 13. The first air pipe 508 is communicated with the housing 5015. An annular air pipe 5013 is fixedly connected to the upper end of the strip-shaped nozzle 14. A plurality of first jet heads 5012 are communicated with the annular air pipe 5013. A gas guide pipe 5011 is arranged in the hollow rotating shaft 13. One end of the gas guide pipe 5011 is communicated with the annular air pipe 5013, and the other end of the gas guide pipe 5011 is communicated with the housing 5015. Sealing rings 5014 are arranged at both ends of the housing 5015. During operation, high-pressure air enters the bottom annular pipe 5101 through the second air pipe 509 and then is ejected from the second jet heads 5102 to clean the inner wall of the blanking barrel 9. At the same time, the high-pressure air entering from the first air pipe 508 enters the housing 5015. Since the housing 5015 is rotatably connected to the hollow rotating shaft 13, the rotation of the hollow rotating shaft 13 will not affect the first air pipe 508. Then, it enters the gas guide pipe 5011 from the space in the housing 5015, then enters the annular air pipe 5013 and is ejected from the first jet heads 5012. At the same time, in cooperation with the rotation of the hollow rotating shaft 13, dynamic cleaning can be realized.

[0044] The working principle of the present invention is as follows: During operation, the prepared liquid material is poured into the liquid material hopper 71. The transfer pump 72 pumps the liquid material in the liquid material hopper 71 to the atomizing nozzle 15. The atomizing nozzle 15 atomizes and sprays the liquid material. At the same time, the hot air blower 81 generates hot air, and the hot air is sent to the rotary joint 83 through the air supply hose 82. Then, the rotary joint 83 sends the hot air to the hollow rotating shaft 13. The hot air entering the hollow rotating shaft 13 sprays out from the strip-shaped nozzle at the lower end of the strip-shaped nozzle pipe 14. At the same time, the driving motor 41 drives the motor gear 43 to rotate. The rotation of the motor gear 43 drives the driving gear 42, and the rotation of the driving gear 42 drives the hollow rotating shaft 13 to rotate, so that the hot air rotates and sprays out, and thus can fully contact the sprayed liquid material, causing the liquid material to dry and form powder. The formed powder falls under the action of gravity. Then, the induced draft fan 34 is started to induce air, so that the powder at the bottom of the blanking bucket 9 enters the cyclone separator 38. Then, the powder enters the collection tank 35 for collection under the action of the cyclone separator 38. The air flow and tiny powder enter the inside of the filter tank 39 through the U-shaped pipe 31 for recovery. The filtered air is discharged from the induced draft fan 34. While the hollow rotating shaft 13 is rotating, the cam 502 rotates synchronously. Each time the cam 502 rotates one circle, it will push the action rod 507 to move once. Each time the action rod 507 moves, it will push the sealing plate 513 to open, so that the high-pressure gas enters the second air blowing assembly 510 and the first air blowing assembly 501 respectively, realizing the cleaning of the barrel wall. Each time the action rod 507 moves, it will also squeeze the trigger button 505. After the trigger button 505 is triggered, the vibration motor 511 is started to vibrate the barrel wall, so that the barrel wall vibrates while being air-blown and cleaned, thereby improving the cleaning effect. When the powder needs to be taken out, the collection tank 35 and the filter tank 39 are removed, and the powder is poured out.

[0045] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Although this specification is described according to the embodiments, not each embodiment only contains one technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard this specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dryer for preparing oil microcapsule powder, comprising a bottom plate (1), characterized in that: An installation chassis (12) is installed at the upper end of the bottom plate (1). A blanking barrel (9) is arranged inside the installation chassis (12). Upper supports are fixedly connected to both the upper end and the lower end of the blanking barrel (9). Lower supports are fixedly connected to the inner wall of the installation chassis (12) at positions below the upper supports. Springs (2) are installed between the upper supports and the lower supports. An upper feeding barrel (11) is arranged inside the blanking barrel (9). An adjusting mechanism (6) for adjusting the height of the upper feeding barrel (11) is arranged on the blanking barrel (9). A hollow rotating shaft (13) is rotatably connected to the middle of the upper end of the upper feeding barrel (11). A plurality of strip-shaped spray pipes (14) are communicated with the lower end of the hollow rotating shaft (13). Strip-shaped spray nozzles are arranged at the lower ends of the strip-shaped spray pipes (14). A cross frame (10) is fixedly connected to the position inside the upper feeding barrel (11) below the strip-shaped spray pipes (14). An atomizing nozzle (15) is arranged in the middle of the cross frame (10). A liquid supply mechanism (7) for supplying liquid to the atomizing nozzle (15) is arranged on the installation chassis (12). A heat supply mechanism (8) for conveying hot air to the hollow rotating shaft (13) is arranged on one side of the installation chassis (12). A driving mechanism (4) for driving the hollow rotating shaft (13) to rotate is arranged on the upper feeding barrel (11). A collecting mechanism (3) for collecting powder is connected to the lower port of the blanking barrel (9). A cleaning mechanism (5) for preventing powder from adhering to the inner wall is arranged on the upper feeding barrel (11) and the blanking barrel (9).

2. The dryer for preparing the oil and fat microcapsule powder according to claim 1, wherein, The adjusting mechanism (6) includes an upper sealing ring (61) and a three-way electromagnetic reversing valve (67). The upper sealing ring (61) is fixedly connected to the upper end of the inner wall of the blanking barrel (9). A lower sealing ring (65) is also fixedly connected to the inner wall of the blanking barrel (9) near the middle. A piston sliding ring (62) is fixedly connected to the outer wall of the upper feeding barrel (11) at a position between the upper sealing ring (61) and the lower sealing ring (65). The piston sliding ring (62) is slidably connected to the inner wall of the blanking barrel (9). The upper sealing ring (61) and the lower sealing ring (65) are both slidably connected to the upper feeding barrel (11). Sealing rings are arranged on the upper sealing ring (61), the piston sliding ring (62), and the lower sealing ring (65). An air compressor (68) is also installed at one end of the bottom plate (1). The output end of the air compressor (68) is connected to an output pipe (69). The output pipe (69) is connected to the air inlet of the three-way electromagnetic reversing valve (67). Inflatable pipes (66) are arranged on one side of the upper sealing ring (61) and the lower sealing ring (65). The ends of the two inflatable pipes (66) far away from the blanking barrel (9) are respectively communicated with the two outlets of the three-way electromagnetic reversing valve (67). Air discharge pipes (64) are arranged at the positions on the other side of the upper sealing ring (61) and the lower sealing ring (65). Solenoid valves (63) are arranged on the air discharge pipes (64).

3. The dryer for preparing the oil and fat microcapsule powder according to claim 1, characterized in that, The liquid supply mechanism (7) includes a liquid hopper (71), the liquid hopper (71) is installed at the lower end of one side of the installation chassis (12), a delivery pump (72) is installed inside the installation chassis (12) near the lower end of one side of the liquid hopper (71), both the suction end and the discharge end of the delivery pump (72) are connected with a liquid supply hose (73), the liquid supply hose (73) on the suction end of the delivery pump (72) is communicated with the liquid hopper (71), the barrel walls of the blanking barrel (9) and the feeding barrel (11) are both of a hollow structure, a lower coiled pipe (76) is arranged in the hollow cavity of the blanking barrel (9), an upper coiled pipe (77) is arranged in the hollow cavity of the feeding barrel (11), heat-conducting materials (78) are filled in the hollow cavities of the blanking barrel (9) and the feeding barrel (11), an intermediate hose (75) for communication is arranged between the upper coiled pipe (77) and the heat-conducting materials (78), the outlet end of the upper coiled pipe (77) is connected with an upper connecting pipe (74), the upper connecting pipe (74) is communicated with the atomizing nozzle (15), and the liquid supply hose (73) at the output end of the delivery pump (72) is connected with one end interface of the lower coiled pipe (76).

4. The dryer for preparing the oil and fat microcapsule powder according to claim 1, characterized in that, The heat supply mechanism (8) includes a hot air blower (81) and a rotary joint (83), the hot air blower (81) is installed at the lower end of one side of the installation chassis (12), the output end of the hot air blower (81) is connected with a air supply hose (82), the air outlet interface of the rotary joint (83) is communicated with the upper end of the hollow rotating shaft (13), and the upper end of the air supply hose (82) is communicated with the air inlet interface of the rotary joint (83).

5. The dryer for preparing the oil and fat microcapsule powder according to claim 1, characterized in that, The driving mechanism (4) includes a driving motor (41), the driving motor (41) is installed at a position on one side of the upper end surface of the feeding barrel (11), a motor gear (43) is installed at the output end of the driving motor (41), a driving gear (42) is fixedly connected at the position where the hollow rotating shaft (13) passes through the feeding barrel (11), and the motor gear (43) is meshed with the driving gear (42).

6. The dryer for preparing the oil and fat microcapsule powder according to claim 1, characterized in that, The collection mechanism (3) includes a flexible pipe (36), the flexible pipe (36) is connected to the lower port of the blanking barrel (9), the lower end of the flexible pipe (36) is connected with a material guiding pipe (37), a cyclone separator (38) is installed on one side of the installation chassis (12) by using a bracket, the material guiding pipe (37) is communicated with the inlet of the cyclone separator (38), a collection tank (35) is threadedly connected to the powder outlet at the lower end of the cyclone separator (38), the air outlet end at the upper end of the cyclone separator (38) is connected with a U-shaped pipe (31), one end of the U-shaped pipe (31) far away from the cyclone separator (38) is connected with a recovery cylinder (33), there is an opening on one side of the recovery cylinder (33), a sealing arc door (32) is rotatably connected in the opening, a door lock buckle fixed to the recovery cylinder (33) is arranged on the sealing arc door (32), a filter tank (39) is threadedly connected at the position where the lower end of the U-shaped pipe (31) penetrates into the recovery cylinder (33), and an induced draft fan (34) is fixedly connected to the bottom plate (1) at a position below the U-shaped pipe (31), and the air inducing end of the induced draft fan (34) is communicated with the lower end of the recovery cylinder (33).

7. The dryer for preparing the oil-fat microcapsule powder according to claim 1, wherein, The cleaning mechanism (5) includes an air distribution cylinder (503). The air distribution cylinder (503) is fixedly connected to one side of the upper end of the feeding barrel (11). A sealing ring (512) is fixedly connected to the middle inside the air distribution cylinder (503). An actuating rod (507) is slidably connected inside the air distribution cylinder (503). A sealing plate (513) is fixedly connected to one end of the actuating rod (507) inside the air distribution cylinder (503). A return spring (514) is disposed between the sealing plate (513) and the inner wall of the air distribution cylinder (503) on the side away from the hollow rotating shaft (13). An L-shaped frame (504) is fixedly connected to one side of the upper end of the feeding barrel (11). An air inlet hose (506) is connected to the upper end of the L-shaped frame (504). One end of the air inlet hose (506) is communicated with the output pipe (69), and the other end of the air inlet hose (506) is communicated with the cavity of the air distribution cylinder (503) near one end of the return spring (514). A first air pipe (508) and a second air pipe (509) are connected to the cavity of the air distribution cylinder (503) on the side away from the return spring (514). A first air blowing assembly (501) for cleaning the inner wall of the feeding barrel (11) is provided on the first air pipe (508), and a second air blowing assembly (510) for cleaning the inner wall of the discharging barrel (9) is provided on the second air pipe (509). A trigger button (505) is provided at a position of the L-shaped frame (504) opposite to the actuating rod (507). A cam (502) cooperating with the actuating rod (507) is further provided on the hollow rotating shaft (13). A roller is provided at one end of the actuating rod (507) close to the cam (502). A plurality of vibration motors (511) are installed on the outer wall of the discharging barrel (9).

8. The dryer for preparing the oil and fat microcapsule powder according to claim 7, characterized in that, The second air blowing assembly (510) includes a bottom annular pipe (5101). The bottom annular pipe (5101) is disposed below the lower sealing ring (65). The bottom annular pipe (5101) is communicated with the second air pipe (509). A plurality of second jet nozzles (5102) are provided at the lower end of the bottom annular pipe (5101).

9. The dryer for preparing the oil and fat microcapsule powder according to claim 7, wherein, The first air blowing assembly (501) includes a housing (5015). The housing (515) is rotatably connected to the hollow rotating shaft (13). The first air pipe (508) is communicated with the housing (5015). An annular air pipe (5013) is fixedly connected to the upper end of the strip-shaped nozzle pipe (14). A plurality of first jet nozzles (5012) are communicated with the annular air pipe (5013). A guide air pipe (5011) is provided inside the hollow rotating shaft (13). One end of the guide air pipe (5011) is communicated with the annular air pipe (5013), and the other end of the guide air pipe (5011) is communicated with the housing (5015). Sealing rings (5014) are provided at both ends of the housing (5015).

10. The dryer for preparing the oil and fat microcapsule powder according to claim 6, wherein, One side of the installation chassis (12) is provided with a maintenance box door, and a door lock buckle is provided on the maintenance box door.

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