Taro ball processing technology and extrusion granulation device

Abstract

The invention provides a taro ball processing technology and an extrusion granulation device. The taro ball processing technology comprises the following steps: S1, preparing the following raw materials in parts by mass: 70-80 parts of taro, 30-40 parts of yellow-core sweet potatoes, 25-35 parts of purple sweet potatoes and 15-25 parts of seasoning additives; s2, the henry steudnera tuber, the yellow-core sweet potatoes and the purple sweet potatoes are washed, peeled and diced and then are sent into a steam cooking cabinet to be cooked for 20-30 minutes, the steam temperature is 100 DEG C, and the water content of the henry steudnera tuber is smaller than or equal to 35%; s3, pouring the steamed and cured henry steudnera tuber blocks, the steamed and cured yellow-core sweet potato blocks and the steamed and cured purple sweet potato blocks into a mashing machine, performing mashing to obtain fruit mash, feeding the fruit mash into a double-shaft mixing machine, performing stirring and mixing, and adding seasoning additives in the mixing process; and S4, pouring the mixed raw materials into an extrusion granulation device, extruding the raw materials into a plurality of strips, and cutting the strips into small particles. According to the technology, a pressure extrusion mode is adopted, the binding force between raw materials is improved, the raw materials are not prone to soaking, the water content is low, then continuous freezing and drying are conducted, the water content is further reduced, the dried taro ball particles are obtained, and a granulating device is high in granulating efficiency and not prone to adhesion.

Description

Technical Field

[0001] The present invention relates to the technical field of taro ball processing, and particularly to a taro ball processing technology and an extrusion granulation device. Background Art

[0002] Taro balls are a famous Minnan snack and a traditional dessert in regions such as Fujian. They are made from materials such as taro, sweet potato, purple sweet potato, and tapioca starch, and have multiple varieties and preparation methods. Currently, the processing process of taro balls usually includes steaming, mashing, mixing, rolling into strips, cutting into segments, and rolling into balls. After rolling into balls, they are directly frozen. They have a high water content and are in the form of wet taro balls. Taro balls in this form need to be stored frozen and are prone to soaking and swelling.

[0003] In order to solve the above problems of wet taro balls, a taro ball processing technology and an extrusion granulation device are proposed to prepare dry taro balls. Summary of the Invention

[0004] In view of the above problems, the present invention provides a taro ball processing technology and an extrusion granulation device. This technology uses the method of pressure extrusion to improve the bonding force between raw materials, making them not prone to soaking and swelling, with less water content. After continuous freezing and drying, the water content is further reduced to obtain dry taro ball granules. Moreover, the granulation device has a high granulation efficiency and is not prone to sticking.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A taro ball processing technology includes the following steps:

[0007] S1. Prepare the following raw materials in parts by mass: 70 - 80 parts of taro, 30 - 40 parts of yellow - heart sweet potato, 25 - 35 parts of purple sweet potato, and 15 - 25 parts of flavor additive;

[0008] S2. Wash, peel, and cut the taro, yellow - heart sweet potato, and purple sweet potato, and then send them into a steam cooking cabinet to steam for 20 - 30 minutes at a steam temperature of 100°C, with the water content of the taro ≤ 35%;

[0009] S3. Pour the steamed and cooked taro pieces, yellow - heart sweet potato pieces, and purple sweet potato pieces into a mashing machine to make them into mashed pulp, and then send them into a twin - shaft mixer to stir and mix, and add the flavor additive during the mixing process;

[0010] S4. Pour the mixed raw materials into the extrusion granulation device to extrude the raw materials into multiple strips and cut them into small - segment granules;

[0011] S5. The small - segment granules are secondarily cooked with steam and then rolled into balls. After forming, the taro balls are cooled by a cooling line;

[0012] S6. The cooled taro balls are dried on a drying line using a resistance heating tube and the temperature is controlled at 50-60° C. Finally, they are pushed into a drying room for drying to obtain dry taro ball particles.

[0013] Preferably, the flavoring additive is monk fruit extract.

[0014] Preferably, the drying room temperature is 55-65° C., the drying time is 5-8 hours, and the moisture content of the taro balls after drying is ≤15%.

[0015] The invention also discloses a taro ball extrusion granulation device, comprising a frame, on which a plurality of mounting arms are fixedly connected from top to bottom, and the plurality of mounting arms are sequentially mounted with an extruder, a blanking plate, a powder sprinkling device and a rounding device from top to bottom, and further comprising a first conveyor belt and a second conveyor belt arranged on one side of the frame, a steam channel and a powder sprinkling channel being respectively mounted on the first conveyor belt and the second conveyor belt, a plurality of steam pipes being arranged on the top of the steam channel, an extrusion die being butted against the extrusion end of the extruder, a plurality of extrusion channels being circumferentially arranged on the extrusion die, a slitting cavity communicating with the plurality of extrusion channels being arranged in the end portion of the extrusion die, a rotating shaft being rotatably connected in the slitting cavity, a plurality of slitting knives being fixed on the side wall of the rotating shaft, a plurality of mounting arms being passed through the lower end of the rotating shaft and a conical rolling disk being fixedly mounted thereon, and the taro balls cut by the slitting knives pass through the blanking plate, the first conveyor belt and the second conveyor belt in sequence and then fall into the conical rolling disk for rounding forming.

[0016] Preferably, the extrusion channel is sheathed with a cooling jacket, the outer periphery of the extrusion die is fixedly sheathed with an annular powder inlet pipe, the circumferential inner wall of the annular powder inlet pipe is provided with a plurality of powder inlet pipes connected with the slitting cavity, the thickness of the slitting cavity is consistent with the width of the slitting knife, the end of the extrusion die is provided with a powder outlet for the rotating shaft to pass through and the flour to be discharged, and a motor that can drive the rotating shaft to rotate is installed in the extrusion die.

[0017] Preferably, a transmission chamber is provided in the top of the steam channel and the powdering channel, and a transmission shaft is rotatably connected in the transmission chamber, and the end of the transmission shaft is butted with the output end of the reducer, and the input end of the reducer is transmission-connected to the rotating shaft through a bevel gear assembly, and the bevel gear assembly is installed in the corresponding mounting arm, and a plurality of worms are connected in series on the transmission shaft, and a plurality of vertical turning shafts are rotatably connected in the transmission chamber, and a worm wheel meshing with the corresponding worm is fixed to the upper end of the turning shaft, and a plurality of flaps are circumferentially fixed to the lower end of the turning shaft, and the flaps are in contact with the corresponding belt surface.

[0018] Preferably, a powder outlet pipe is installed on the side wall of the flap located in the powdering channel, and the side wall of the powder outlet pipe is provided with multiple powder outlet holes, corresponding to the hollow setting of the turning shaft and connected to the powder outlet pipe, and the upper end of the hollow turning shaft is connected with a powder blowing pipe.

[0019] Preferably, the rolling equipment includes a conical rolling disk, and a discharge barrel cover mounted on the periphery of the conical rolling disk is fixedly installed at the bottom of the frame, and cylinders are installed on both sides of the discharge barrel cover, and a material blocking enclosure covered on the conical rolling disk is fixedly installed at the telescopic end of the cylinder through a connecting arm.

[0020] Preferably, a mounting port for installing a powder sprinkling device is provided on the corresponding mounting arm, and the powder sprinkling device includes a flour box, and two parallel flour tubes are connected to the bottom of the flour box through two lower hoppers, and the flour tubes are arranged along the radius direction of the conical rolling disk, and a plurality of powder sprinkling holes are provided at the bottom of the flour tubes, and also includes a vibration plate installed between the two flour tubes.

[0021] Preferably, an output shaft is rotatably connected in the vibration plate, one end of the output shaft is transmission-connected to the rotating shaft through a corresponding bevel gear assembly, a turntable is fixed to the other end of the output shaft, a plurality of first magnetic blocks are embedded in the circumferential side wall of the turntable, mounting grooves are provided on both sides of the vibration plate, a vibration rod adapted to the flour tube is elastically installed in the mounting groove through a spring, and a second magnetic block adapted to the first magnetic block is fixed to the inner end of the vibration rod.

[0022] The beneficial effects of the present invention are:

[0023] 1. After the raw materials are mixed and stirred, they are squeezed out in the form of pressure extrusion to extrude multiple strips and then cut into segments to improve the binding force between the raw materials, making them less likely to swell and having less water content. After continuous freezing and drying, the water content is further reduced to obtain dry taro balls, which are small in size and can be stored at room temperature. They will not swell in water for a long time and have a better taste. Monk fruit extract is added to have the effects of beautifying the skin, lowering blood sugar, and relieving cough and reducing phlegm.

[0024] 2. By installing the extruder, the first conveyor belt, the second conveyor belt, the powder spreading device and the spheronization device, the raw materials are cut into sections after being extruded under pressure, and are automatically sent to the steam channel for aging, and then sent to the spheronization device through the second conveyor belt. During the spheronization process, the powder spreading device spreads powder synchronously to avoid adhesion, thereby realizing a continuous granulation process with high granulation efficiency.

[0025] 3. By installing the extrusion die, the raw materials extruded by the extruder are extruded into strips through multiple extrusion channels. The cooling jacket can quickly cool it down, making it easy to cut and not easy to stick. The motor drives the shaft to rotate, and then drives multiple cutting knives to rotate in the cutting chamber, cutting multiple extrusion channels continuously. The cavity wall is close to the cutting knife, which can scrape off the raw materials on the knife wall. During the cutting process, flour is blown into the cutting chamber through the annular powder inlet pipe, which can further reduce adhesion.

[0026] 4. By installing multiple groups of turning plates, while the rotating shaft rotates, after being decelerated by the bevel gear assembly and the reducer, it synchronously drives the rotation of two transmission shafts, and then drives the turning shaft to rotate through the worm and the worm gear, and further drives the rotation of multiple turning plates to turn the conveyed taro balls, so that the steam cooking is uniform. The steam-cooked taro balls fall onto the second conveyor belt for conveying. While the turning plates on it rotate to turn the taro balls, flour is blown into the flour pipe through the blowing powder pipe and into the powder spreading pipe through the turning shaft, and finally blown out through multiple powder outlet holes and blown onto the surface of the turning taro balls for the secondary powder spreading process, which reduces adhesion on the one hand and improves the taste level of the taro balls on the other hand.

[0027] 5. By installing a powder sprinkling device, the flour in the flour box flows into two flour pipes through two feeding hoppers. The rotating shaft synchronously drives the output shaft to rotate through the corresponding bevel gear assembly, and then drives the turntable to rotate, so that the first magnetic block intermittently rotates past the second magnetic block. Due to the repulsion between the two, under the action of the magnetic repulsion force, it drives the vibrating rod to reciprocally impact the corresponding flour pipe to make it vibrate, and then evenly sprinkle the flour through multiple powder sprinkling holes. Cooperating with the rotation of the conical rolling disc, it forms into a round shape without adhesion and has high forming quality. Brief Description of the Drawings

[0028] Figure 1 is the structural schematic diagram of the present invention;

[0029] Figure 2 is the cross-sectional schematic diagram of the extrusion die proposed by the present invention;

[0030] Figure 3 is the cross-sectional schematic diagram of the slitting cavity proposed by the present invention;

[0031] Figure 4 is Figure 1 the enlarged schematic diagram of the structure at A in

[0032] Figure 5 is the structural schematic diagram of the powder sprinkling device proposed by the present invention;

[0033] Figure 6 is the cross-sectional schematic diagram of the vibrating plate proposed by the present invention.

[0034] In the figure: 1 extruder, 2 extrusion die, 3 blanking plate, 4 frame, 5 mounting arm, 6 flour box, 7 mounting opening, 8 flour pipe, 9 bevel gear assembly, 10 rotating shaft, 11 first conveyor belt, 12 second conveyor belt, 13 cylinder, 14 discharge cylinder cover, 15 conical rolling disc, 16 baffle enclosure, 17 connecting arm, 18 reducer, 19 transmission shaft, 20 steam pipe, 21 steam channel, 22 powder coating channel, 23 flap, 24 powder blowing pipe, 25 worm gear, 26 transmission cavity, 27 turning shaft, 28 powder outlet pipe, 29 motor, 30 powder outlet, 31 annular powder inlet pipe, 32 cooling jacket, 33 extrusion channel, 34 slitting cavity, 35 slitting knife, 36 vibrating plate, 37 powder spraying hole, 38 vibrating rod, 39 mounting groove, 40 turntable, 41 output shaft, 42 first magnetic block, 43 second magnetic block, 44 spring, 45 worm. Detailed implementation mode

[0035] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention is made in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation mode.

[0037] Embodiment 1

[0038] A taro ball processing process includes the following steps:

[0039] S1. Prepare the following raw materials in parts by mass: 70 parts of taro, 30 parts of yellow heart sweet potato, 25 parts of purple sweet potato, and 15 parts of flavor additive;

[0040] S2. Wash, peel and cut the taro, yellow heart sweet potato and purple sweet potato, and then send them into a steam cooking cabinet for steaming for 20 minutes. The steam temperature is 100 °C, and the water content of the taro is ≤ 35%;

[0041] S3. Pour the steamed and cooked taro pieces, yellow heart sweet potato pieces and purple sweet potato pieces into a mashing machine to make mashed pulp, and then send them into a double-shaft mixer for stirring and mixing. Add flavor additives during the mixing process;

[0042] S4. Pour the mixed raw materials into an extrusion granulation device, extrude the raw materials into multiple strands and cut them into small pieces of granules;

[0043] S5. The small pieces of granules are subjected to secondary steam ripening and then rounded, and the formed taro balls are cooled by a cooling line;

[0044] S6. The cooled taro balls are dried by a drying line, dried by means of resistance heating tubes, the temperature is controlled at 50 °C, and finally pushed into a drying room for drying to obtain dry taro ball granules. The temperature in the drying room is 55 °C, dried for 5 h, and the water content of the dried taro balls is ≤15%.

[0045] Example 2

[0046] A taro ball processing process, S1. Prepare the following raw materials in parts by mass: 75 parts of taro, 35 parts of yellow heart sweet potato, 30 parts of purple sweet potato, and 20 parts of flavor additive;

[0047] S2. Wash, peel and cut the taro, yellow heart sweet potato and purple sweet potato, and put them into a steam cooking cabinet for cooking for 25 minutes. The steam temperature is 100 °C, and the water content of the taro is ≤35%;

[0048] S3. Pour the cooked and ripened taro pieces, yellow heart sweet potato pieces and purple sweet potato pieces into a mashing machine, mash them into a puree, and then send them into a double-shaft mixer for stirring and mixing. Add the flavor additive during the mixing process;

[0049] S4. Pour the mixed raw materials into an extrusion granulation device, extrude the raw materials into multiple strands and cut them into small pieces of granules;

[0050] S5. The small pieces of granules are subjected to secondary steam ripening and then rounded, and the formed taro balls are cooled by a cooling line;

[0051] S6. The cooled taro balls are dried by a drying line, dried by means of resistance heating tubes, the temperature is controlled at 55 °C, and finally pushed into a drying room for drying to obtain dry taro ball granules. The temperature in the drying room is 60 °C, dried for 6 h, and the water content of the dried taro balls is ≤15%.

[0052] Example 3

[0053] A taro ball processing process, S1. Prepare the following raw materials in parts by mass: 80 parts of taro, 40 parts of yellow heart sweet potato, 35 parts of purple sweet potato, and 25 parts of flavor additive;

[0054] S2. Wash, peel and cut the taro, yellow heart sweet potato and purple sweet potato, and put them into a steam cooking cabinet for cooking for 30 minutes. The steam temperature is 100 °C, and the water content of the taro is ≤35%;

[0055] S3. Pour the cooked and ripened taro pieces, yellow heart sweet potato pieces and purple sweet potato pieces into a mashing machine, mash them into a puree, and then send them into a double-shaft mixer for stirring and mixing. Add the flavor additive during the mixing process;

[0056] S4. Pour the mixed raw materials into an extrusion granulation device, extrude the raw materials into multiple strands and cut them into small pieces of granules;

[0057] S5. The small pieces of granules are subjected to secondary steam ripening and then rounded, and the formed taro balls are cooled through a cooling line;

[0058] S6. The cooled taro balls are dried through a drying line. The drying is carried out by means of a resistance heating tube, and the temperature is controlled at 60°C. Finally, they are pushed into a drying room for drying to obtain dried taro ball granules. The temperature in the drying room is 65°C, and the drying time is 8 hours. The water content of the dried taro balls is ≤15%.

[0059] The flavoring additive in the above embodiments is Momordica grosvenori extract, which has the effects of beautifying the skin, reducing blood sugar, and relieving cough and resolving phlegm.

[0060] Referring to Figures 1-6 , the present invention also proposes a taro ball extrusion granulation device, which includes a frame 4. A plurality of mounting arms 5 are fixedly connected to the frame 4 from top to bottom. An extruder 1, a blanking plate 3, a powder sprinkling device, and a rounding device are sequentially installed on the plurality of mounting arms 5 from top to bottom. It also includes a first conveyor belt 11 and a second conveyor belt 12 arranged on one side of the frame 4. A steam channel 21 and a powder coating channel 22 are respectively installed on the first conveyor belt 11 and the second conveyor belt 12. A plurality of steam pipes 20 are provided at the top of the steam channel 21. The lower end of the rotating shaft 10 penetrates through the plurality of mounting arms 5 and is fixedly installed with a conical rolling disc 15. The taro balls cut by the cutting knife 35 sequentially pass through the blanking plate 3, the first conveyor belt 11, and the second conveyor belt 12 and then fall into the conical rolling disc 15 for rounding.

[0061] The extrusion end of the extruder 1 is butted with an extrusion die 2. A plurality of extrusion channels 33 are circumferentially arranged on the extrusion die 2. A cutting cavity 34 communicated with the plurality of extrusion channels 33 is arranged inside the end of the extrusion die 2. A rotating shaft 10 is rotatably connected inside the cutting cavity 34. A plurality of cutting knives 35 are fixed on the side wall of the rotating shaft 10. A cooling sleeve 32 is sleeved outside the extrusion channel 33. An annular powder inlet pipe 31 is fixedly sleeved outside the extrusion die 2. A plurality of powder inlet pipes communicated with the cutting cavity 34 are arranged on the circumferential inner wall of the annular powder inlet pipe 31. The thickness of the cutting cavity 34 is the same as the width of the cutting knife 35. An outlet 30 for the rotating shaft 10 to pass through and the flour to be discharged is arranged at the end of the extrusion die 2. A motor 29 capable of driving the rotating shaft 10 to rotate is installed inside the extrusion die 2. The cooling sleeve 32 can quickly cool it, making it easy to cut and not easy to adhere. The motor 29 drives the rotating shaft 10 to rotate, and then drives the plurality of cutting knives 35 to rotate inside the cutting cavity 34 to continuously cut the plurality of extrusion channels 33. The cavity wall is adjacent to the cutting knife 35, which can scrape the raw materials on the knife wall. During the cutting process, flour is blown into the cutting cavity 34 through the annular powder inlet pipe 31, which can further reduce adhesion.

[0062] A transmission cavity 26 is provided inside the tops of both the steam channel 21 and the powdering channel 22. A transmission shaft 19 is rotatably connected inside the transmission cavity 26. The end of the transmission shaft 19 is butted against the output end of a speed reducer 18. The input end of the speed reducer is in transmission connection with the rotating shaft 10 through a bevel gear assembly 9. The bevel gear assembly 9 is installed inside the corresponding mounting arm 5. A plurality of worm shafts 45 are strung on the transmission shaft 19. A plurality of vertical turning shafts 27 are rotatably connected inside the transmission cavity 26. A worm gear 25 meshing with the corresponding worm shaft 45 is fixed to the upper end of the turning shaft 27. A plurality of turning plates 23 are circumferentially fixed to the lower end of the turning shaft 27. The turning plates 23 abut against the surface of the corresponding belt. While the rotating shaft 10 rotates, after being decelerated by the bevel gear assembly 9 and the speed reducer 10, the two transmission shafts 19 are synchronously driven to rotate. Then, the turning shafts 27 are driven to rotate through the worm shafts 45 and the worm gears 25, and further the plurality of turning plates 23 are driven to rotate, turning the conveyed taro balls to make the steam cooking uniform.

[0063] Further, a powder outlet pipe 28 is installed on the side wall of the turning plate 23 located inside the powdering channel 22. A plurality of powder outlet holes are provided on the side wall of the powder outlet pipe 28. The corresponding turning shaft 27 is hollow and communicated with the powder outlet pipe 28. The upper end of the hollow turning shaft 27 is butted against a powder blowing pipe 24. The taro balls after steam cooking fall onto the second conveying belt 12 for conveying. While the turning plates 23 thereon rotate to turn the taro balls, flour is blown in by the powder blowing pipe 24, blown into the powdering pipe 28 through the turning shaft 27, and finally blown out through the plurality of powder outlet holes and blown onto the surface of the turning taro balls for the secondary powdering process, reducing adhesion on the one hand and improving the taste level of the taro balls on the other hand.

[0064] Further, the rounding device includes a conical rounding disc 15. A discharge barrel cover 14 sleeved outside the conical rounding disc 15 is fixedly installed at the bottom of the frame 4. Cylinders 13 are installed on both sides of the discharge barrel cover 14. The telescopic ends of the cylinders 13 are fixedly installed with a material blocking enclosure 16 covering the conical rounding disc 15 through connecting arms 17. During the process that the rotating shaft 10 drives the conical rounding disc 15 to rotate for rounding, the material blocking enclosure 16 prevents the taro balls from being thrown out. When the rounding is completed, the cylinders 13 are started, and the material blocking enclosure 16 is driven to rise through the connecting arms 17, and the taro ball particles are thrown out and discharged through the discharge barrel cover 14.

[0065] The corresponding mounting arm 5 is provided with a mounting port 7 for mounting a powder sprinkling device, the powder sprinkling device includes a flour box 6, the bottom of the flour box 6 is connected with two parallel flour tubes 8 through two lower hoppers, the flour tubes 8 are arranged along the radial direction of the conical rolling disk 15, and the bottom of the flour tubes 8 is provided with a plurality of powder sprinkling holes 37, and also includes a vibration plate 36 installed between the two flour tubes 8, an output shaft 41 is rotatably connected in the vibration plate 36, one end of the output shaft 41 is transmission-connected to the rotating shaft 10 through the corresponding bevel gear assembly 9, and a turntable 40 is fixed to the other end of the output shaft 41, and a plurality of first magnetic blocks 42 are embedded in the circumferential side wall of the turntable 40, and both sides of the vibration plate 36 Each of them is provided with an installation groove 39, in which a vibration rod 38 adapted to the flour tube 8 is elastically installed by a spring 44, and a second magnetic block 43 adapted to the first magnetic block 42 is fixed to the inner end of the vibration rod 38. The flour in the flour box 6 flows into the two flour tubes 8 through the two lower hoppers, and the rotating shaft 10 synchronously drives the output shaft 41 to rotate through the corresponding bevel gear assembly 9, and then drives the turntable 40 to rotate, so that the first magnetic block 42 intermittently rotates through the second magnetic block 43. Due to the repulsion between the two, and then under the action of the magnetic repulsion force, the vibration rod 38 is driven to reciprocate and hit the corresponding flour tube 8, causing it to vibrate, and then the flour is evenly sprinkled through the multiple powder sprinkling holes 37.

[0066] The raw material extruded by the extruder 1 is extruded into strips through multiple extrusion channels 33. The cooling sleeve 32 can quickly cool it down, making it easy to cut and not easy to stick. The motor 29 drives the rotating shaft 10 to rotate, and then drives multiple cutting knives 35 to rotate in the cutting chamber 34, and continuously cuts the multiple extrusion channels 33. The cavity wall is close to the cutting knife 35, and the raw material on the knife wall can be scraped off. During the cutting process, flour is blown into the cutting chamber 34 through the annular powder inlet pipe 31, which can further reduce adhesion.

[0067] The cut small segments fall onto the first conveyor belt 11 through the unloading plate 3, are sent into the steam channel 21, and are steam-ripened through multiple steam pipes 20. While the rotating shaft 10 rotates, it is decelerated by the bevel gear assembly 9 and the reducer 10, and then the two transmission shafts 19 are synchronously driven to rotate, and then the turning shaft 27 is driven to rotate through the worm 45 and the worm wheel 25, and then the multiple flaps 23 are driven to rotate, and the conveyed taro balls are turned over to make the steam ripening uniform. The taro balls after steam ripening fall onto the second conveyor belt 12 for transportation, and the flap 23 thereon rotates. While the taro balls are turned over, flour is blown into it by the powder blowing pipe 24, blown into the powdering pipe 28 through the turning shaft 27, and finally blown out through multiple powder outlet holes to the surface of the turned taro balls, and a secondary powdering process is performed, which reduces adhesion on the one hand and improves the level of taste of the taro balls on the other hand.

[0068] The flour in the flour box 6 flows into the two flour pipes 8 through two discharge hoppers. The rotating shaft 10 drives the output shaft 41 to rotate synchronously through the corresponding bevel gear assembly 9, and then drives the turntable 40 to rotate, so that the first magnetic block 42 intermittently rotates past the second magnetic block 43. Due to the repulsion between the two, under the action of the magnetic repulsion force, the vibrating rod 38 is driven to reciprocally impact the corresponding flour pipe 8, causing it to vibrate, and then the flour is evenly scattered through a plurality of powder spraying holes 37. In cooperation with the rotation of the conical rolling disc 15, the round shape is formed without sticking, and the forming quality is high.

[0069] During the process of the rotating shaft 10 driving the conical rolling disc 15 to rotate and round, the material retaining fence 16 prevents the taro balls from being thrown out. When the round shape is formed, the air cylinder 13 is started, and the connecting arm 17 drives the material retaining fence 16 to rise, and the taro ball particles are thrown out and discharged through the discharge cylinder cover 14.

[0070] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A taro ball processing technology, characterized in that: The following steps are involved: S1. Prepare the following raw materials by weight: 70-80 parts of taro, 30-40 parts of yellow heart potato, 25-35 parts of purple potato, and 15-25 parts of seasoning additives; S2, washing, peeling, cutting and putting the taro, yellow heart potato and purple potato into a steam cooking cabinet for 20-30 minutes, the steam temperature is 100° C., and the water content of the taro is ≤35%; S3, pouring the cooked taro pieces, yellow heart potato pieces and purple potato pieces into a mud beater, beating into puree, and then sending them into a double-shaft mixer for stirring and mixing, and adding seasoning additives during the mixing process; S4, pouring the mixed raw materials into an extrusion granulation device, extruding the raw materials into multiple strips and cutting them into small granules; S5, the small-sized particles are subjected to secondary steam ripening and then rolled into round shapes, and the formed taro balls are cooled in a cooling line; S6. The cooled taro balls are dried on a drying line using a resistance heating tube and the temperature is controlled at 50-60° C. Finally, they are pushed into a drying room for drying to obtain dry taro ball particles.

2. A taro ball processing technology according to claim 1, characterized in that: The seasoning additive is monk fruit extract.

3. A taro ball processing technology according to claim 1, characterized in that: The temperature of the drying room is 55-65° C., and the drying time is 5-8 hours. The moisture content of the taro balls after drying is ≤15%.

4. A taro ball extrusion granulation device, comprising a frame (4), characterized in that: The frame (4) is fixedly connected to a plurality of mounting arms (5) from top to bottom, and the plurality of mounting arms (5) are sequentially mounted with an extruder (1), a feed plate (3), a powder spreading device and a rounding device from top to bottom, and further comprises a first conveyor belt (11) and a second conveyor belt (12) arranged on one side of the frame (4), and the first conveyor belt (11) and the second conveyor belt (12) are respectively mounted with a steam channel (21) and a powder spreading channel (22), and a plurality of steam pipes (20) are arranged on the top of the steam channel (21), and the extrusion end of the extruder (1) is connected to an extrusion die (2), and the extruder (1) is connected to a first conveyor belt (11) and a second conveyor belt (12) respectively. The die (2) is provided with a plurality of extrusion channels (33) in the circumferential direction, and a slitting cavity (34) connected to the plurality of extrusion channels (33) is provided in the end of the extrusion die (2). A rotating shaft (10) is rotatably connected in the slitting cavity (34), and a plurality of slitting knives (35) are fixed to the side wall of the rotating shaft (10). The lower end of the rotating shaft (10) passes through a plurality of mounting arms (5) and is fixedly provided with a conical rolling disc (15). The taro balls cut by the slitting knives (35) pass through a blanking plate (3), a first conveyor belt (11), and a second conveyor belt (12) in sequence, and then fall into the conical rolling disc (15) for rolling and forming.

5. A taro ball extrusion granulation device according to claim 4, characterized in that: The extrusion channel (33) is sheathed with a cooling jacket (32); the outer periphery of the extrusion die (2) is fixedly sheathed with an annular powder inlet pipe (31); the circumferential inner wall of the annular powder inlet pipe (31) is provided with a plurality of powder inlet pipes connected to a slitting chamber (34); the thickness of the slitting chamber (34) is consistent with the width of a slitting knife (35); the end of the extrusion die (2) is provided with a powder outlet (30) for the rotating shaft (10) to pass through and for the flour to be discharged; and a motor (29) is installed in the extrusion die (2) for driving the rotating shaft (10) to rotate.

6. A taro ball extrusion granulation device according to claim 4, characterized in that: A transmission chamber (26) is provided in the top of each of the steam channel (21) and the powdering channel (22), a transmission shaft (19) is rotatably connected in the transmission chamber (26), the end of the transmission shaft (19) is butted with the output end of the reducer (18), the input end of the reducer is transmission-connected to the rotating shaft (10) via a bevel gear assembly (9), the bevel gear assembly (9) is installed in the corresponding mounting arm (5), a plurality of worms (45) are serially connected to the transmission shaft (19), a plurality of vertical turning shafts (27) are rotatably connected in the transmission chamber (26), a worm wheel (25) meshing with the corresponding worm (45) is fixed at the upper end of the turning shaft (27), a plurality of flaps (23) are circumferentially fixed at the lower end of the turning shaft (27), the flaps (23) contact the corresponding belt surface.

7. A taro ball extrusion granulation device according to claim 6, characterized in that: A powder outlet pipe (28) is installed on the side wall of the flap (23) located in the powdering channel (22). The side wall of the powder outlet pipe (28) is provided with a plurality of powder outlet holes, which are hollowly arranged corresponding to the turning shaft (27) and are connected to the powder outlet pipe (28). The upper end of the hollow turning shaft (27) is connected to a powder blowing pipe (24).

8. A taro ball extrusion granulation device according to claim 4, characterized in that: The rolling device comprises a conical rolling disc (15), a discharge barrel cover (14) which is mounted on the outer periphery of the conical rolling disc (15) is fixedly mounted at the bottom of the frame (4), a cylinder (13) is mounted on both sides of the discharge barrel cover (14), and a material blocking enclosure (16) which is mounted on the conical rolling disc (15) is fixedly mounted on the telescopic end of the cylinder (13) via a connecting arm (17).

9. A taro ball extrusion granulation device according to claim 4, characterized in that: A mounting opening (7) for mounting a powder sprinkling device is provided on the mounting arm (5), the powder sprinkling device comprising a flour box (6), the bottom of the flour box (6) being connected to two parallel flour tubes (8) via two lower hoppers, the flour tubes (8) being arranged along the radial direction of the conical rolling disc (15), the bottom of the flour tubes (8) being provided with a plurality of powder sprinkling holes (37), and also comprising a vibration plate (36) installed between the two flour tubes (8).

10. A taro ball extrusion granulation device according to claim 9, characterized in that: An output shaft (41) is rotatably connected inside the vibration plate (36), one end of the output shaft (41) is transmission-connected to the rotating shaft (10) through a corresponding bevel gear assembly (9), a turntable (40) is fixed to the other end of the output shaft (41), a plurality of first magnetic blocks (42) are embedded in the circumferential side wall of the turntable (40), mounting grooves (39) are provided on both sides of the vibration plate (36), a vibration rod (38) adapted to the flour tube (8) is elastically mounted in the mounting groove (39) through a spring (44), and a second magnetic block (43) adapted to the first magnetic block (42) is fixed to the inner end of the vibration rod (38).

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