Drum dryer for yam slice processing and its processing technology

Abstract

The present invention relates to the technical field of drum scraper dryers, and specifically discloses a drum dryer for processing yam slices and a processing technology thereof, comprising: a shell and a drying cylinder, the shell having a feed port and a discharge port, a first scraper being arranged above the discharge port, the drying cylinder being rotatably fitted in the shell, the first scraper being stopped against the drying cylinder, a plurality of material receiving plates being arranged in the shell, a transmission belt being slidably fitted in the shell, the transmission belt being used to drive the material receiving plates to move, the material receiving plates being rotatably fitted with the transmission belt, the material receiving plates being able to rotate, thereby transferring materials at the bottom thereof to the tops of other material receiving plates; the drum dryer for processing yam slices and a processing technology thereof of the present invention, by driving the material receiving plates to rotate through the transmission belt, can pour the remaining materials in the material receiving plates onto the next material receiving plates, thereby preventing materials from remaining in the material receiving plates and causing material deterioration.

Description

Technical Field

[0001] The invention relates to the technical field of a drum scraper dryer, and in particular to a drum dryer for processing yam slices and a processing technology thereof. Background Art

[0002] The processing technology of yam snowflakes includes the following steps: 1. raw material preparation; 2. slicing; 3. gelatinization; 4. drying. In the drying process, a drum scraper dryer is usually used to dry the gelatinized raw materials.

[0003] The drum scraper dryer is a highly efficient continuous drying equipment, which includes: chamber body, feeding device, scraper device, heating pipeline and heating disc, discharging device and other components.

[0004] A Chinese patent with authorization publication number CN219674763U discloses a scraping device for a drum scraper dryer, which includes a drum, a storage trough arranged at the bottom end of the drum, and a scraper for scraping off materials adhering to the drum, wherein an outer shell is provided on the side of the storage trough close to the scraper, and an opening is provided on the side of the outer shell close to the drum, a material discharge module is provided at the bottom end of the inner part of the outer shell, the scraper includes a scraping section abutting the drum, a horizontal section arranged at one end of the scraping section away from the drum, and a vertical section arranged at the bottom end of the horizontal section, a heating module is provided inside the scraping section and the horizontal section, and a spacing adjustment module is provided on the vertical section for pushing the horizontal section to slide back and forth at the top end of the storage trough.

[0005] The above patent adjusts the distance between the scraper and the roller through the distance adjustment module, thereby heating the material adhering to the scraper to prevent the material adhering to the scraper from being too wet and affecting the material discharge.

[0006] However, when the roller adheres to the material, some of the material will inevitably remain at the bottom of the material bin. When new material is added, the remaining old material will still remain at the bottom of the material bin. After being placed for a long time, this part of the material may deteriorate, thereby affecting the overall quality of the material in the material bin. Summary of the invention

[0007] The present invention provides a drum dryer for processing yam slices and a processing technology thereof, aiming to solve the problem in the related art that part of the material remains at the bottom of the material bin and cannot be dried.

[0008] The drum dryer for processing yam slices of the present invention comprises: a shell and a drying drum;

[0009] The shell has a feed port and a discharge port, and a first scraper is provided above the discharge port;

[0010] The drying cylinder is rotatably fitted in the shell, and the first scraper abuts against the drying cylinder;

[0011] A plurality of material holding plates are arranged in the shell, and a transmission belt is slidably fitted in the shell. The transmission belt is used to drive the material holding plates to move. The material holding plates are rotationally fitted with the transmission belt. The material holding plates can rotate, thereby transferring the material at the bottom thereof to the top of other material holding plates.

[0012] Beneficial effect: When the material on the material receiving plate is about to be exhausted, the material receiving plate is driven to rotate by the movement of the transmission belt, so that the material in the material receiving plate falls on the top of the next material receiving plate, preventing the material from remaining in the material receiving plate and causing the material to deteriorate.

[0013] Preferably, the drying cylinder is provided with a second scraper, and the second scraper can abut against the material holding plate during the rotation of the material holding plate, thereby scraping the material on the material holding plate.

[0014] The effect is that, during the rotation of the material holding plate, the second scraper can scrape the material holding plate to prevent the material from remaining on the material holding plate.

[0015] Preferably, a flattening roller is rotatably provided in the shell, and the flattening roller is spaced apart from the drying drum with a gap therebetween.

[0016] The effect is that the flattening roller can squeeze the material so that the material is evenly distributed on the drying drum, preventing the material on the drying drum from being too thick and causing poor drying effect.

[0017] Preferably, the shell is provided with a first arc slide groove and a second arc slide groove, the second scraper is provided with a first rotating shaft and a second rotating shaft, the first rotating shaft slides in the first arc slide groove, the second rotating shaft slides in the second arc slide groove, the first rotating shaft and the first arc slide groove are connected by a first elastic member, the second rotating shaft and the second arc slide groove are connected by a second elastic member, the first rotating shaft moves along the first arc slide groove and the second rotating shaft moves along the second arc slide groove to drive the second scraper to rotate.

[0018] Preferably, the material holding plate cooperates with the transmission belt through a connecting assembly, the connecting assembly includes a rotating shaft and a first limit block, the rotating shaft is fixedly connected to the material holding plate, the first limit block is rotatably connected to the rotating shaft through a torsion spring, and a matching groove is provided on the transmission belt, and the first limit block can be engaged with the matching groove.

[0019] Preferably, a second limit block is further provided on the rotating shaft, a cavity is provided between the transmission belt and the shell, the second limit block is slidably fitted in the cavity, and a limit strip is further provided on the side wall of the cavity, and the limit strip can limit the rotation of the second limit block.

[0020] Preferably, an inclined discharging hopper is provided at the discharging port.

[0021] The effect is that after the first scraper scrapes the material off the drying drum, the material falls on the discharge hopper and is discharged along the discharge hopper.

[0022] Preferably, a limiting protrusion is provided on the inner wall of the shell, and the limiting protrusion can abut against the material holding plate, and the limiting protrusion is used to limit the upward movement of the material holding plate.

[0023] A processing technology based on the above-mentioned drum dryer for yam slice processing includes the following steps:

[0024] The first step is loading, pouring the paste material into the shell from the feed port. At this time, the material holding plate is located below the drying cylinder and the feed port, and the material holding plate can carry the material;

[0025] The second step is drying. The transmission belt moves and pushes the material holding plate upward. The material on the material holding plate contacts the drying cylinder. The material can adhere to the drying cylinder and be dried. The dried material is scraped off by the first scraper and falls on the discharge hopper. While drying, the next material holding plate is loaded.

[0026] The third step is to replace the material receiving plate. The transmission belt starts to move, driving the material receiving plate to rotate around the drying drum. The remaining material on the material receiving plate will be poured into the next material receiving plate and fall on the top of the material in the next material receiving plate. At the same time, the next material receiving plate rises to the bottom of the drying drum under the push of the transmission belt. The drying drum can contact the material in the next material receiving plate. Repeat the above process to complete the entire drying process.

[0027] Beneficial effect: When the material on the material receiving plate is about to be exhausted, the material receiving plate is driven to rotate by the movement of the transmission belt, so that the material in the material receiving plate falls on the top of the next material receiving plate, preventing the material from remaining in the material receiving plate and causing the material to deteriorate.

[0028] By adopting the above technical solution, the beneficial effects of the present invention are:

[0029] According to the drum dryer and processing technology for yam slice processing of the present invention, the paste material is poured into the shell from the feed inlet, and the material is carried by the material receiving plate. The drying drum rotates so that the material adheres to the drying drum to achieve drying of the material, and the dried material is scraped off when passing through the first scraper. When the material on the material receiving plate is about to be exhausted, the material receiving plate is driven to rotate by the movement of the transmission belt, so that the material in the material receiving plate falls on the top of the next material receiving plate, preventing the material from remaining in the material receiving plate and causing the material to deteriorate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a schematic structural diagram of a drum dryer for processing yam slices according to an embodiment of the present invention.

[0031] Figure 2 It is a cross-sectional view of a drum dryer for processing yam slices according to an embodiment of the present invention.

[0032] Figure 3 4 is a cross-sectional view of a shell of an embodiment of the present invention.

[0033] Figure 4 It is a schematic diagram of the structure of a material holding plate according to an embodiment of the present invention.

[0034] Figure 5 4 is a cross-sectional view of a connection assembly according to an embodiment of the present invention.

[0035] Figure 6 4 is a sectional view of a shell side wall according to an embodiment of the present invention.

[0036] Figure 7 It is a schematic diagram of the second scraper structure of an embodiment of the present invention.

[0037] Reference numerals:

[0038] 1. Shell; 101. Feed inlet; 102. First arc-shaped slide groove; 103. Second arc-shaped slide groove; 104. Limiting protrusion; 2. First scraper; 3. Drying cylinder; 4. Material holding plate; 41. Limiting surface; 42. Connecting assembly; 421. Rotating shaft; 422. First limiting block; 423. Torsion spring; 424. Second limiting block; 5. Transmission belt; 51. Matching groove; 6. Driving member; 7. Flattening roller; 8. Second scraper; 81. First rotating shaft; 82. Second rotating shaft; 9. Discharging hopper; 10. Cavity; 11. Limiting strip; 12. Driving unit. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figures 1 to 7 As shown, the drum dryer for yam slice processing of the present invention comprises: a shell 1 and a drying drum 3.

[0041] Specifically, Figure 1 As shown, a feed port 101 and a discharge port are provided on the shell 1, a first scraper 2 is provided above the discharge port, the feed port 101 is located directly below the drying cylinder 3, a discharge hopper 9 is provided at the discharge port, the discharge hopper 9 is tilted, and its top end is fixedly connected to the shell 1.

[0042] like Figure 1 and Figure 2As shown, the drying cylinder 3 is rotatably fitted inside the housing 1, and a driving unit 12 is provided outside the housing 1. The driving unit 12 is a motor, and the driving unit 12 is used to drive the drying cylinder 3 to rotate. A heating device is provided inside the drying cylinder 3, and the heating device is a conventional blower, which can blow hot air into the drying cylinder 3. The first scraper 2 is stopped against the drying cylinder 3, and the first scraper 2 is located directly above the discharge hopper 9.

[0043] like Figures 1 to 6 As shown, a plurality of material receiving plates 4 are provided in the housing 1. The material receiving plates 4 are of an arc-shaped structure. A transmission belt 5 is slidably fitted in the housing 1. The transmission belt 5 is connected end to end. A driving member 6 is provided on the housing 1. The driving member 6 is a motor. Its output end is engaged with the transmission belt 5, thereby driving the transmission belt 5 to move. A limiting surface 41 is provided at one end of each material receiving plate 4, and a connecting component 42 is provided at the other end. The material receiving plate 4 is engaged with the transmission belt 5 through the connecting component 42. The connecting component 42 includes a rotating shaft 421 and a first limiting block 422. The rotating shaft 421 is fixedly connected to the material receiving plate 4. The first limiting block 422 is rotatably connected to the rotating seat through a torsion spring 423. A matching groove 51 is provided on the transmission belt 5. The first limiting block 422 can extend into the matching groove 51 and match the matching groove 5. 1 is connected, the rotating shaft 421 can extend into the transmission belt 5, and a second limit block 424 is provided on the rotating shaft 421. The second limit block 424 is fixedly connected to the rotating shaft 421. There is a cavity 10 between the transmission belt 5 and the shell 1. The second limit block 424 is slidably matched in the cavity 10. A limit strip 11 is provided on the side wall of the cavity 10. When the second limit block 424 abuts against the limit strip 11, the second limit block 424 cannot rotate under the restriction of the limit strip 11. The inner wall of the shell 1 is provided with a limit protrusion 104 below the drying cylinder 3. The limit protrusion 104 is an arc-shaped structure, and its arc is the same as that of the material receiving plate 4. The limit protrusion 104 can abut against the material receiving plate 4, thereby limiting the upward movement of the material receiving plate 4 and preventing the material receiving plate 4 from colliding.

[0044] When the material receiving plate 4 is located directly below the drying drum 3, the limiting surface 41 of the material receiving plate 4 abuts against the inner wall of the shell 1. At this time, the transmission belt 5 applies pressure to the material receiving plate 4 through the connecting assembly 42, so that the limiting surface 41 fits against the inner wall of the shell 1, thereby keeping the material receiving plate 4 in a horizontal distribution and preventing the material receiving plate 4 from tilting. Since the material receiving plate 4 and the shell 1 are in surface contact, the limiting surface 41 can prevent the material receiving plate 4 from tilting when moving upward, and the torsion spring 423 is in a relaxed state. When the material receiving plate 4 moves upward to abut against the limiting protrusion 104, the limiting protrusion 104 limits the horizontal rise of the material receiving plate 4. At this time, the transmission belt 5 first drives the material receiving plate 4 to move rightward along the limiting protrusion 104. During this process, the rotating shaft 421 rotates relative to the transmission belt 5, and the torsion spring 423 accumulates force. During this process, the left end of the material receiving plate 4 is lower than its right end, and the material in the material receiving plate 4 can fall through its left end. When the material holding plate 4 moves to the top of the transmission belt 5, the second limit block 424 contacts the limit bar 11, and the limit bar 11 limits the rotation of the second limit block 424, thereby limiting the rotation of the material holding plate 4. At this time, the material holding plate 4 is in a vertical distribution state, and the torsion spring 423 is in a tensioned state. Then the material holding plate 4 moves to the right side of the transmission belt 5 and moves downward along the transmission belt 5. When the second limit block 424 is out of contact with the limit bar 11, the material holding plate 4 rotates clockwise under the elastic force of the torsion spring 423. When the material holding plate 4 moves to the left side of the transmission belt 5, the material holding plate 4 rotates to a horizontal state. At this time, the torsion spring 423 is in a relaxed state, and the limit surface 41 at the left end of the material holding plate 4 stops against the inner wall of the housing 1.

[0045] like Figure 2 As shown, a flattening roller 7 is rotatably provided in the shell 1. The flattening roller 7 is spaced apart from the drying drum 3 with a gap therebetween. A driving motor is provided in the shell 1. The output end of the driving motor is fixedly connected to the flattening roller 7. The driving motor is used to drive the flattening roller 7 to rotate.

[0046] like Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, a second scraper 8 is also provided in the shell 1, a first arc-shaped slide groove 102 and a second arc-shaped slide groove 103 are provided on the shell 1, a first rotating shaft 81 and a second rotating shaft 82 are provided on the second scraper 8, the first rotating shaft 81 slides in the first arc-shaped slide groove 102, the second rotating shaft 82 slides in the second arc-shaped slide groove 103, the first rotating shaft 81 and the first arc-shaped slide groove 102 are connected by a first elastic member, and the first elastic member is a spring, the second rotating shaft 82 and the second arc-shaped slide groove 103 are connected by a second elastic member, and the second elastic member is a spring, and the second scraper 8 always stops against the flattening roller 7. When the holding plate 4 moves along the limiting protrusion 104, it will drive the second scraper 8 to rotate. At this time, the first rotating shaft 81 moves in the first arc-shaped slide groove 102, and the second rotating shaft 82 moves in the second arc-shaped slide groove 103. The second scraper 8 can move along the flattening roller 7. During the rotation of the second scraper 8, the second scraper 8 always stops against the flattening roller 7, and at the same time, the end of the second scraper 8 stops against the holding plate 4.

[0047] The drum dryer for processing yam slices according to the embodiment of the present invention comprises the following steps:

[0048] The first step is loading. During loading, the material holding plate 4 is located below the material inlet 101 , and the paste material is poured into the housing 1 from the material inlet 101 and falls onto the material holding plate 4 .

[0049] The second step is drying. The driving belt 5 is driven by the driving member 6 to move. The driving belt 5 drives the loaded material receiving plate 4 to move upward. When the material receiving plate 4 stops at the limiting protrusion 104, the driving member 6 is closed. At this time, the drying cylinder 3 can contact the material carried on the material receiving plate 4. During the rotation of the drying cylinder 3, the material adheres to the drying cylinder 3 and is dried. When the material on the drying cylinder 3 passes through the gap between the flattening roller 7 and the drying cylinder 3, the flattening roller 7 can squeeze the material so that the material is evenly distributed on the drying cylinder 3 to prevent the material from being too thick and difficult to dry. When the material passes through the first scraper 2, the first scraper 2 scrapes the material from the drying cylinder 3. The scraped material falls on the discharge hopper 9 and slides down along the discharge hopper 9 to be discharged. While drying, the next material receiving plate 4 is simultaneously loaded.

[0050] The third step is to replace the material receiving plate 4. When the material in the material receiving plate 4 is reduced to the point where it cannot adhere to the drying drum 3, start the driving member 6, and drive belt 5 is driven by the driving member 6 to move. Drive belt 5 pulls the material receiving plate 4. Since the material receiving plate 4 is stopped against the limiting protrusion 104, the material receiving plate 4 cannot move horizontally upward. The material receiving plate 4 will rotate along the limiting protrusion 104. During the rotation, the remaining material on the material receiving plate 4 will fall into the next material receiving plate 4 below it.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A drum dryer for yam slice processing, comprising: A shell body, wherein the shell body has a feed port and a discharge port, and a first scraper is provided above the discharge port; A drying cylinder, the drying cylinder is rotatably fitted in the shell, and the first scraper abuts against the drying cylinder; The invention is characterized in that a plurality of material holding plates are arranged in the shell, a transmission belt is slidably matched in the shell, the transmission belt is used to drive the material holding plates to move, the material holding plates are rotationally matched with the transmission belt, and the material holding plates can rotate, thereby transferring the materials at the bottom thereof to the tops of other material holding plates; The drying drum is provided with a second scraper, and the second scraper can stop against the material holding plate during the rotation of the material holding plate, thereby scraping the material on the material holding plate; A flattening roller is also rotatably arranged in the shell, and the flattening roller is spaced apart from the drying drum, with a gap between them. The housing is provided with a first arc-shaped slide groove and a second arc-shaped slide groove, and the second scraper is provided with a first rotating shaft and a second rotating shaft, the first rotating shaft is slidably fitted in the first arc-shaped slide groove, and the second rotating shaft is slidably fitted in the second arc-shaped slide groove, the first rotating shaft and the first arc-shaped slide groove are connected by a first elastic member, and the second rotating shaft and the second arc-shaped slide groove are connected by a second elastic member, and the first rotating shaft moves along the first arc-shaped slide groove and the second rotating shaft moves along the second arc-shaped slide groove to drive the second scraper to rotate; The material holding plate is matched with the transmission belt through a connecting assembly, and the connecting assembly includes a rotating shaft and a first limit block, the rotating shaft is fixedly connected to the material holding plate, the first limit block is rotatably connected to the rotating shaft through a torsion spring, and a matching groove is provided on the transmission belt, and the first limit block can be clamped with the matching groove; A second limit block is also provided on the rotating shaft, a cavity is provided between the transmission belt and the housing, the second limit block is slidably fitted in the cavity, and a limit strip is also provided on the side wall of the cavity, the limit strip can limit the rotation of the second limit block; The inner wall of the shell is provided with a limiting protrusion, and the limiting protrusion can stop against the material holding plate, and the limiting protrusion is used to limit the upward movement of the material holding plate; The material holding plate is an arc-shaped structure, and the limiting protrusion is an arc-shaped structure; When the material receiving plate moves upward until it stops against the limiting protrusion, the limiting protrusion limits the horizontal rise of the material receiving plate. At this time, the transmission belt first drives the material receiving plate to move right along the limiting protrusion. During this process, the rotating shaft rotates relative to the transmission belt and causes the torsion spring to store force. During this process, the left end of the material receiving plate is lower than its right end, and the material in the material receiving plate can fall through its left end; when the material receiving plate moves to the top of the transmission belt, the second limiting block contacts the limiting bar, and the limiting bar limits the rotation of the second limiting block, thereby limiting the rotation of the material receiving plate. At this time, the material receiving plate is in a vertical distribution state and the torsion spring is in a tensioned state; then the material receiving plate moves to the right side of the transmission belt and moves downward along the transmission belt. When the second limiting block disengages from the limiting bar, under the elastic force of the torsion spring, the material receiving plate rotates clockwise, and when the material receiving plate moves to the left side of the transmission belt, the material receiving plate rotates to a horizontal state; When the material holding plate moves along the limiting protrusion, it will drive the second scraper to rotate. At this time, the first rotating shaft moves in the first arc-shaped slide groove, and the second rotating shaft moves in the second arc-shaped slide groove. The second scraper can move along the flattening roller. During the rotation of the second scraper, the second scraper always stops against the flattening roller, and at the same time, the end of the second scraper stops against the material holding plate.

2. The drum dryer for yam slice processing according to claim 1, characterized in that: The discharge port is provided with an inclined discharge hopper.

3. A processing technology of the drum dryer for yam slice processing based on claim 1, characterized in that: The following steps are involved: The first step is loading, pouring the paste material into the shell from the feed port. At this time, the material holding plate is located below the drying cylinder and the feed port, and the material holding plate can carry the material; The second step is drying. The transmission belt moves and pushes the material holding plate upward. The material on the material holding plate contacts the drying cylinder. The material can adhere to the drying cylinder and be dried. The dried material is scraped off by the first scraper and falls on the discharge hopper. While drying, the next material holding plate is loaded. The third step is to replace the material receiving plate. The transmission belt starts to move, driving the material receiving plate to rotate around the drying drum. The remaining material on the material receiving plate will be poured into the next material receiving plate and fall on the top of the material in the next material receiving plate. At the same time, the next material receiving plate rises to the bottom of the drying drum under the push of the transmission belt. The drying drum can contact the material in the next material receiving plate. Repeat the above process to complete the entire drying process.

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