Milk tea powder spray drying equipment

Abstract

The utility model discloses milk tea powder spray drying equipment, and relates to the technical field of spray drying. The device comprises a supporting frame, a drying cylinder is fixedly connected to the top of the supporting frame, an air heater is fixedly connected to the top of the supporting frame, and an air pump is fixedly connected to the top of the air heater. The milk tea powder drying device is provided with a fixing plate and a cleaning assembly, atomized liquid is dried by an air heater and drifts away on the fixing plate under the influence of gravity, solidified milk tea powder is guided by a plurality of inclined fixing plates, the staying time of the milk tea powder in the drying cylinder is prolonged, the heating time of the milk tea powder is prolonged, and the milk tea powder can be cleaned more conveniently. Meanwhile, through reciprocating operation of the cleaning assembly, the surface of the fixing plate can be scraped and cleaned, residual wet powder continues to be conveyed downwards to be dried by hot air, powder is prevented from being accumulated on the fixing plate, and through cooperation of the fixing plate and the cleaning assembly, the working efficiency is greatly improved; and the finished product quality is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of spray drying technology, and in particular to a milk tea powder spray drying device. Background Art

[0002] Spray drying of milk tea powder is a method of drying wet-process milk tea solid beverages. Liquid is converted into solid powder through spray drying. The milk tea powder after spray drying has a lower oil content, better taste and texture, and better particle size distribution and transmittance measurement stability.

[0003] A spray drying device mentioned in the existing Chinese public patent (authorization announcement number: CN218034052U) includes a main drying tank, a high-speed centrifugal atomizer installed on the top of the main drying tank for connecting to an external mother liquid delivery pipe, and a drive motor installed at the bottom of the main drying tank. A spray drying device of the utility model is movably equipped with a bottom separation bucket controlled by a drive motor on the bottom surface of the main drying tank. The rapidly rotating bottom separation bucket cooperates with the top spray nozzle to spray, so that the drying inside the raw material is more uniform; the centrifugal force generated by the high-speed rotating bottom separation bucket is combined with the metal separation filter screen at the lower end of the bottom separation bucket to quickly separate the solid and liquid, and the drying separation efficiency is greatly improved.

[0004] The above-mentioned patent utilizes a high-speed rotating bottom separation bucket to generate centrifugal force, which greatly improves the drying and separation efficiency. However, in actual use, when the atomized milk tea powder is dried to form a solid powder, part of the liquid spray is heated unevenly, resulting in incomplete drying and failure to form a solid powder, which adheres to the drying cylinder. If it is not cleaned in time, the production efficiency and the quality of the finished product are greatly affected. For this reason, the present application provides a milk tea powder spray drying equipment. Utility Model Content

[0005] The purpose of the present application is to solve the problem that part of the liquid spray is not completely dried due to uneven heating during the drying process and adheres to the drying cylinder. The present application provides a milk tea powder spray drying device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A milk tea powder spray drying device comprises a support frame, a drying cylinder is fixedly connected to the top of the support frame, an air heater is fixedly connected to the top of the air heater, an air pump is fixedly connected to the top of the air heater, an output end of the air pump is fixedly connected to an air pipe, an end of the air pipe away from the output end is penetrated and fixedly connected to one side of the drying cylinder, an atomizing nozzle is installed on the top of the drying cylinder, a plurality of fixed plates are installed inside the drying cylinder, a cleaning assembly is installed inside the plurality of fixed plates, a sieve plate is installed inside the drying cylinder, a shaking assembly is installed at the bottom of the sieve plate, a discharge port is fixedly connected to the bottom of the drying cylinder, and a valve is fixedly connected to the discharge port.

[0008] By adopting the above technical scheme, the liquid is atomized and sprayed inside the drying cylinder through the atomizing nozzle, and the atomized liquid is converted into powder by the heat of the air heater. The solidified milk tea powder can stay in the drying cylinder for a longer time through multiple inclined fixed plates to guide each other, so that the milk tea powder is heated for a longer time and more evenly until it is completely dry. At the same time, the cleaning component is started to scrape and clean the fixed plate, and the remaining wet powder is continuously transported downward to be dried by hot air. Then the solidified milk tea powder will fall on the sieve plate, and the sieve plate is continuously vibrated by the shaking component to sieve the milk tea powder to avoid agglomeration.

[0009] Furthermore, a controller is fixedly connected to one side of the drying cylinder, a temperature sensor is fixedly connected to one side inside the drying cylinder, the controller and the temperature sensor are electrically connected, and the controller and the air heater are electrically connected.

[0010] By adopting the above technical solution, during the drying process, the temperature and heat inside the drying cylinder can be detected in real time through the temperature sensor. When the temperature is high, the air heater can be adjusted in time through the controller to avoid the high temperature affecting the quality of the finished product.

[0011] Furthermore, the fixing plates are staggered and fixedly connected inside the drying cylinder, the fixing plates are all inclined, and sliding grooves are symmetrically provided on the fixing plates.

[0012] By adopting the above technical solution, multiple inclined fixing plates guide each other, so that the solidified milk tea powder can stay in the drying cylinder for a longer time, so that the milk tea powder is heated for a longer time and more evenly until it is completely dried.

[0013] Furthermore, the cleaning assembly includes a threaded rod rotatably connected to the inside of a fixed plate, a motor 1 is fixedly connected to one side of the inside of the fixed plate, an output end of the motor 1 is fixedly connected to one end of the threaded rod, a connecting block is threadedly connected to the threaded rod, and the motor 1 is electrically connected to the controller.

[0014] By adopting the above technical solution, starting the motor can drive the threaded rod to rotate, so that the connecting block can move continuously on the threaded rod.

[0015] Furthermore, a guide rod is fixedly connected inside the fixing plate, and one end of the connecting block away from the threaded rod is slidably connected to the guide rod.

[0016] By adopting the above technical solution, the connection block can be prevented from rotating during the movement through the guidance of the guide rod.

[0017] Furthermore, an electric telescopic rod is symmetrically fixedly connected to the top of the connecting block, a slider is fixedly connected to the output end of the electric telescopic rod, the slider is slidably connected in the slide groove, a scraper is fixedly connected to the top of the slider, a pressure sensor is fixedly connected to one side of the fixed plate, and the pressure sensor is electrically connected to the controller.

[0018] By adopting the above technical solution, when the connecting block continues to move and touches the pressure sensor, the electric telescopic rod will be automatically started to drive the scraper to rise away from the surface of the fixed plate, thereby avoiding pushing the residual milk tea powder on the surface of the fixed plate to accumulate upward during the rising process.

[0019] Furthermore, the shaking assembly includes a rotating rod rotatably connected to the inside of the drying cylinder, a motor 2 is fixedly connected to one side of the drying cylinder, an output end of the motor 2 is fixedly connected to one end of the rotating rod, a cam is symmetrically fixedly connected to the rotating rod, and the cam is located at the bottom of the screen plate.

[0020] By adopting the above technical solution, the second motor is started to drive the rotating rod to rotate, so that the cam continuously hits the sieve plate to vibrate, so as to sieve the milk tea powder on the sieve plate.

[0021] Furthermore, the drying cylinder is symmetrically provided with limiting grooves, both ends of the sieve plate are symmetrically fixedly connected with fixing blocks, the fixing blocks are slidably connected in the limiting grooves, and both upper and lower ends of the fixing blocks are fixedly connected with springs.

[0022] By adopting the above technical solution, when the sieve plate vibrates, it will drive the fixed block to squeeze the springs at both ends. Through the rebound of the slider, the shaking efficiency of the sieve plate is greatly improved, and the milk tea powder on the surface of the sieve plate is better screened, reducing the agglomeration of milk tea powder, making the milk tea powder more delicate, and improving the quality of the finished product.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The present application is provided with a fixed plate and a cleaning component. The atomized liquid is dried by the air heater and will float on the fixed plate due to the influence of gravity. The solidified milk tea powder is guided by a plurality of inclined fixed plates, which increases the residence time of the milk tea powder in the drying cylinder, so that the heating time of the milk tea powder is prolonged and the heating is more uniform until it is completely dried. At the same time, the reciprocating operation of the cleaning component can scrape and clean the surface of the fixed plate, and the remaining wet powder is continuously transported downward to be dried by hot air, thereby avoiding the accumulation of powder on the fixed plate. The cooperation of the fixed plate and the cleaning component greatly improves the work efficiency and effectively improves the quality of the finished product.

[0025] 2. The present application is provided with a sieve plate and a shaking assembly. The solidified milk tea powder will fall onto the sieve plate. Through the cooperation of the cam and the spring, the shaking efficiency of the sieve plate is greatly improved, and the milk tea powder on the surface of the sieve plate is better screened, thereby reducing the agglomeration of the milk tea powder, making the milk tea powder more delicate, and improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a cross-sectional view of the main body of the device in this application.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the cleaning component in this application.

[0029] Figure 4 It is a cross-sectional view of the cleaning component in this application.

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the shaking component in this application.

[0031] Description of reference numerals:

[0032] 1. Support frame; 2. Drying cylinder; 3. Air heater; 4. Air pump; 5. Air pipe; 6. Atomizing nozzle; 7. Controller; 8. Temperature sensor; 9. Fixed plate; 10. Cleaning assembly; 11. Screen plate; 12. Shaking assembly; 13. Discharge port; 14. Valve; 91. Slide; 101. Threaded rod; 102. Motor 1; 103. Connecting block; 104. Guide rod; 105. Electric telescopic rod; 106. Sliding block; 107. Scraper; 108. Pressure sensor; 121. Rotating rod; 122. Motor 2; 123. Cam; 124. Limiting groove; 125. Fixed block; 126. Spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a milk tea powder spray drying device.

[0035] Reference Figure 1 and Figure 2 A milk tea powder spray drying device comprises a support frame 1, a drying cylinder 2 is fixedly connected to the top of the support frame 1, an air heater 3 is fixedly connected to the top of the support frame 1, an air pump 4 is fixedly connected to the top of the air heater 3, an output end of the air pump 4 is fixedly connected to an air delivery pipe 5, an end of the air delivery pipe 5 away from the output end is fixedly connected to one side of the drying cylinder 2, an atomizing nozzle 6 is installed on the top of the drying cylinder 2, a plurality of fixed plates 9 are installed inside the drying cylinder 2, a cleaning component 10 is installed inside the plurality of fixed plates 9, a sieve plate 11 is installed inside the drying cylinder 2, a shaking component 12 is installed at the bottom of the sieve plate 11, a discharge port 13 is fixedly connected to the bottom of the drying cylinder 2, a valve 14 is fixedly connected to the discharge port 13, a controller 7 is fixedly connected to one side of the drying cylinder 2, a temperature sensor 8 is fixedly connected to one side of the drying cylinder 2, the controller 7 and the temperature sensor 8 are electrically connected, the controller 7 and the air heater 3 are electrically connected, the fixed plates 9 are staggered and fixedly connected inside the drying cylinder 2, the fixed plates 9 are all inclined, and slide grooves 91 are symmetrically opened on the fixed plates 9.

[0036] When in use, first connect the external liquid to the atomizing nozzle 6, and then atomize the liquid through the atomizing nozzle 6 and spray it inside the drying cylinder 2. At this time, the heat generated by the air heater 3 is transmitted to the drying cylinder 2 through the air pump 4 and the air pipe 5. The atomized liquid is converted into powder by the heat of the air heater 3. After the milk tea powder is solidified, it will fall on the inclined fixed plate 9 according to the influence of gravity. Through the mutual guidance of multiple inclined fixed plates 9, the solidified milk tea powder can stay in the drying cylinder 2 for a longer time, so that the milk tea powder is heated for a longer time and is heated more evenly until it is completely dried. During the drying process, the temperature inside the drying cylinder 2 can be detected in real time by the temperature sensor 8. temperature and heat. When the temperature is high, the air heater 3 can be adjusted in time through the controller 7 to avoid the high temperature affecting the quality of the finished product. At the same time, part of the liquid spray is not completely heated to form wet powder and adhere to the fixed plate 9. At this time, the cleaning component 10 can be started. The fixed plate 9 is scraped and cleaned through the reciprocating operation of the cleaning component 10, and the remaining wet powder is continued to be transported downward to be dried by hot air. Subsequently, the solidified milk tea powder will fall on the sieve plate 11, and the sieve plate 11 is driven to vibrate continuously through the shaking component 12 to sieve the milk tea powder to avoid agglomeration. The sieved milk tea powder is discharged and collected through the discharge port 13, thereby completely completing the atomization drying.

[0037] Reference Figure 1 , Figure 3 and Figure 4The cleaning assembly 10 includes a threaded rod 101 rotatably connected to the inside of the fixed plate 9, a motor 102 is fixedly connected to one side of the fixed plate 9, the output end of the motor 102 is fixedly connected to one end of the threaded rod 101, a connecting block 103 is threadedly connected to the threaded rod 101, a guide rod 104 is fixedly connected to the inside of the fixed plate 9, one end of the connecting block 103 away from the threaded rod 101 is slidably connected to the guide rod 104, an electric telescopic rod 105 is symmetrically fixedly connected to the top of the connecting block 103, the output end of the electric telescopic rod 105 is fixedly connected to a slider 106, the slider 106 is slidably connected in the slide groove 91, a scraper 107 is fixedly connected to the top of the slider 106, a pressure sensor 108 is fixedly connected to one side of the fixed plate 9, the pressure sensor 108 is electrically connected to the controller 7, the motor 102 is electrically connected to the controller 7, and the controller 7 is electrically connected to the components it can control.

[0038] When in use, first start the motor 102 to drive the threaded rod 101 to rotate. The rotation of the threaded rod 101 will cause the connecting block 103 to move on the threaded rod 101 according to the guidance of the guide rod 104, thereby driving the scraper 107 to move on the surface of the fixed plate 9. The scraper 107 gradually moves to scrape off the wet powder adhered to the fixed plate 9. When the connecting block 103 continues to move and touches the pressure sensor 108, the electric telescopic rod 105 will be automatically started to drive the scraper 107 to rise away from the surface of the fixed plate 9. The scraper 107 moves back and forth to move the scraper 107 to the surface of the fixed plate 9, and then the motor 102 rotates in the opposite direction to drive the scraper 107 back to the origin. After reaching the origin, the electric telescopic rod 105 contracts to make the bottom surface of the scraper 107 fit with the surface of the fixed plate 9 again. When scraping next time, the rising scraper 107 can avoid pushing the residual milk tea powder on the surface of the fixed plate 9 to accumulate upward during the rising process. The reciprocating scraper 107 can continuously clean the surface of the fixed plate 9, so that the residual wet powder continues to dry, which greatly improves the production efficiency and the quality of the finished product.

[0039] Reference Figure 1 and Figure 5 The shaking assembly 12 includes a rotating rod 121 rotatably connected to the inside of the drying cylinder 2, a motor 122 is fixedly connected to one side of the drying cylinder 2, the output end of the motor 122 is fixedly connected to one end of the rotating rod 121, a cam 123 is symmetrically fixedly connected to the rotating rod 121, the cam 123 is located at the bottom of the sieve plate 11, and limiting grooves 124 are symmetrically provided inside the drying cylinder 2. Fixed blocks 125 are symmetrically fixedly connected at both ends of the sieve plate 11. The fixed blocks 125 are slidably connected in the limiting grooves 124, and springs 126 are fixedly connected to the upper and lower ends of the fixed block 125.

[0040] When in use, first start the motor 2 122 to drive the rotating rod 121 to rotate. The continuously rotating rotating rod 121 will cause the cam 123 to rotate together. Through the rotation of the cam 123, the sieve plate 11 can be continuously shaken to sieve the milk tea powder on the sieve plate 11. At the same time, when the sieve plate 11 shakes, it will drive the fixed block 125 to slide back and forth in the limit groove 124 and squeeze the springs 126 at both ends. The expansion and contraction rebound of the springs 126 at both ends greatly improves the shaking efficiency of the sieve plate 11, and better sieves the milk tea powder on the surface of the sieve plate 11, reduces the agglomeration of milk tea powder, makes the milk tea powder more delicate, and improves the quality of the finished product.

[0041] The implementation principle of the milk tea powder spray drying device of the present embodiment is as follows: when in use, firstly, the external liquid is connected to the atomizing nozzle 6, and the liquid is atomized and sprayed inside the drying cylinder 2 through the atomizing nozzle 6. At this time, the heat generated by the air heater 3 is transmitted to the drying cylinder 2 through the air pump 4 and the air pipe 5, and the atomized liquid is converted into powder by the heat of the air heater 3. After the milk tea powder is solidified, it will fall on the inclined fixed plate 9 according to the influence of gravity. Through the mutual guidance of multiple inclined fixed plates 9, the solidified milk tea powder can stay in the drying cylinder 2 for a longer time, so that the milk tea powder is heated for a longer time and is heated more evenly until it is completely dried.

[0042] At the same time, since part of the liquid spray is not completely heated, wet powder will be formed and adhere to the fixed plate 9. At this time, the motor 102 can be started to drive the threaded rod 101 to rotate. The rotation of the threaded rod 101 will make the connecting block 103 move on the threaded rod 101 according to the guidance of the guide rod 104, thereby driving the scraper 107 to move on the surface of the fixed plate 9. The scraper 107 gradually moves to scrape off the wet powder adhered to the fixed plate 9. When the connecting block 103 continues to move and touches the pressure sensor 108, the electric telescopic rod 105 will be automatically started to drive the scraper The scraper 107 rises and moves away from the surface of the fixed plate 9, and then the motor 102 rotates in the opposite direction to drive the scraper 107 back to the origin. After reaching the origin, the electric telescopic rod 105 contracts, so that the bottom surface of the scraper 107 is again in contact with the surface of the fixed plate 9. In the next scraping, the rising scraper 107 can avoid pushing the residual milk tea powder on the surface of the fixed plate 9 to accumulate upward during the rising process. The reciprocating scraper 107 can continuously clean the surface of the fixed plate 9, so that the residual wet powder continues to be dried, which greatly improves the production efficiency and the quality of the finished product.

[0043] In addition, the solidified milk tea powder will fall on the sieve plate 11, and the motor 2 122 can be started to drive the rotating rod 121 to rotate. The continuously rotating rotating rod 121 will cause the cam 123 to rotate together. Through the rotation of the cam 123, the sieve plate 11 can be continuously shaken to sieve the milk tea powder on the sieve plate 11. At the same time, when the sieve plate 11 shakes, it will drive the fixed block 125 to slide back and forth in the limiting groove 124 and squeeze the springs 126 at both ends. The expansion and contraction rebound of the springs 126 at both ends greatly improves the shaking efficiency of the sieve plate 11, and the milk tea powder on the surface of the sieve plate 11 is better sieved, reducing the agglomeration of milk tea powder, making the milk tea powder more delicate, and improving the quality of the finished product. The sieved milk tea powder is discharged and collected through the discharge port 13, thereby completely completing the atomization drying.

Claims

1. A milk tea powder spray drying device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a drying cylinder (2), the top of the support frame (1) is fixedly connected to an air heater (3), the top of the air heater (3) is fixedly connected to an air pump (4), the output end of the air pump (4) is fixedly connected to an air supply pipe (5), the end of the air supply pipe (5) away from the output end is penetrated and fixedly connected to one side of the drying cylinder (2), an atomizing nozzle (6) is installed on the top of the drying cylinder (2), a plurality of fixed plates (9) are installed inside the drying cylinder (2), a cleaning assembly (10) is installed inside the plurality of fixed plates (9), a sieve plate (11) is installed inside the drying cylinder (2), a shaking assembly (12) is installed at the bottom of the sieve plate (11), a discharge port (13) is fixedly connected to the bottom of the drying cylinder (2), and a valve (14) is fixedly connected to the discharge port (13).

2. A milk tea powder spray drying device according to claim 1, characterized in that: A controller (7) is fixedly connected to one side of the drying cylinder (2), a temperature sensor (8) is fixedly connected to one side of the interior of the drying cylinder (2), the controller (7) and the temperature sensor (8) are electrically connected, and the controller (7) and the air heater (3) are electrically connected.

3. The milk tea powder spray drying device according to claim 1, characterized in that: The fixing plates (9) are staggered and fixedly connected inside the drying cylinder (2); the fixing plates (9) are all inclined; and sliding grooves (91) are symmetrically provided on the fixing plates (9).

4. The milk tea powder spray drying device according to claim 1, characterized in that: The cleaning assembly (10) comprises a threaded rod (101) rotatably connected to the interior of a fixed plate (9); a motor 1 (102) is fixedly connected to one side of the interior of the fixed plate (9); an output end of the motor 1 (102) is fixedly connected to one end of the threaded rod (101); a connecting block (103) is threadedly connected to the threaded rod (101); and the motor 1 (102) is electrically connected to the controller (7).

5. The milk tea powder spray drying device according to claim 4, characterized in that: A guide rod (104) is fixedly connected inside the fixing plate (9), and one end of the connecting block (103) away from the threaded rod (101) is slidably connected to the guide rod (104).

6. The milk tea powder spray drying device according to claim 4, characterized in that: The top of the connecting block (103) is symmetrically fixedly connected to an electric telescopic rod (105); the output end of the electric telescopic rod (105) is fixedly connected to a slider (106); the slider (106) is slidably connected in the slide groove (91); the top of the slider (106) is fixedly connected to a scraper (107); a pressure sensor (108) is fixedly connected to one side of the interior of the fixed plate (9); and the pressure sensor (108) is electrically connected to the controller (7).

7. The milk tea powder spray drying device according to claim 1, characterized in that: The shaking assembly (12) comprises a rotating rod (121) rotatably connected to the interior of the drying cylinder (2); a second motor (122) is fixedly connected to one side of the drying cylinder (2); an output end of the second motor (122) is fixedly connected to one end of the rotating rod (121); a cam (123) is symmetrically fixedly connected to the rotating rod (121); and the cam (123) is located at the bottom of the sieve plate (11).

8. The milk tea powder spray drying device according to claim 7, characterized in that: The drying cylinder (2) has symmetrically disposed limit grooves (124) inside, and fixed blocks (125) are symmetrically fixedly connected at both ends of the sieve plate (11). The fixed blocks (125) are slidably connected in the limit grooves (124), and springs (126) are fixedly connected at both upper and lower ends of the fixed blocks (125).

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