Double-cone dryer for veterinary medicine production

Abstract

This invention discloses a double-cone dryer for veterinary drug production, comprising a mounting bracket and a rotatable double-cone tank mounted on the mounting bracket. The mounting bracket includes at least a left column, a right chamber, and a horizontal base plate. The right chamber is divided into an upper cavity, a middle cavity, and a lower cavity by two layers of partitions. The double-cone tank has an inner and outer double-layer structure, with a feed port at the top and a discharge port at the bottom. It also includes a drive motor located in the middle cavity and a stirring assembly located in the upper cavity, connected to the drive motor. The stirring assembly drives the double-cone tank to rotate and stirs the material inside the tank. The stirring assembly includes at least an inner cavity base, a main input device, a tank actuator, a stirring device, a reverse actuator, a forward drive ring, and an adjustment device.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing technology, specifically to a double-cone dryer for veterinary drug production. Background Technology

[0002] A double-cone dryer is a rotary tank device with a double-cone shape, commonly used for drying granular materials in industries such as pharmaceuticals, chemicals, food, dyes, and metallurgical powders. Its working principle involves electrically heating a heat-conducting medium introduced into the jacket under vacuum conditions. The heat comes into contact with the wet material through the inner wall of the tank, causing the material to absorb heat and evaporate moisture. This moisture is then removed by a vacuum pump through a vacuum exhaust pipe, thus achieving the drying purpose. Because the tank is under vacuum and the rotation of the tank causes the material to continuously tumble and move, the drying speed is accelerated, drying efficiency is improved, and uniform drying is achieved.

[0003] In existing double-cone dryers, material tends to clump together in the center of the pile before stirring even begins, and this clumping persists throughout the subsequent stirring process. Therefore, a double-cone dryer with an adjustable stirring device within the dryer is needed. Summary of the Invention

[0004] A double-cone dryer for veterinary drug production includes a mounting bracket and a rotatable double-cone tank mounted on the mounting bracket. The mounting bracket includes at least a left column, a right box, and a horizontal bottom plate. The right box is divided into an upper cavity, a middle cavity, and a lower cavity by two layers of partitions.

[0005] The double-cone tank has an inner and outer double-layer structure, with a feed hole at the top and a discharge hole at the bottom.

[0006] Also includes:

[0007] The drive motor is located inside the central cavity;

[0008] A stirring assembly is located in the upper cavity and is connected to a drive motor. The stirring assembly is used to drive the double cone tank to rotate and stir the material inside the double cone tank.

[0009] Furthermore,

[0010] The stirring assembly includes at least:

[0011] The cavity foundation includes a left through hole on the left side of the upper cavity and a lower through hole at the lower end of the upper cavity that communicates with the middle cavity. The upper cavity is provided with a perforated lug, a left limiting ring, and a right limiting ring from left to right.

[0012] The main input device is connected to the drive motor for transmission.

[0013] The tank actuator is connected to the main input device to drive the double-cone tank to rotate;

[0014] A stirring device is installed inside the double cone tank to stir the materials and prevent them from sticking together and clumping.

[0015] A reverse drive, connected to the main input device, is used to drive the stirring device to rotate in the opposite direction to the double cone tank.

[0016] A forward drive ring is connected to the tank drive to drive the stirring device and the double cone tank to rotate synchronously.

[0017] An adjustment device, located on the right side of the foundation inside the cavity, is used to switch the stirring device to be connected to the reverse drive or the forward drive ring.

[0018] As a further technical solution:

[0019] The main input device includes a drive pulley driven by the output shaft of the drive motor and a driven assembly rotatably mounted on the bottom plate of the upper cavity. The driven assembly includes a driven spindle, a central bevel gear formed on the driven spindle, and a driven pulley formed at the lower end of the driven spindle. The drive pulley and the driven pulley are connected by a conveyor belt.

[0020] As a further implementation plan:

[0021] The tank drive includes a hollow cylinder fixedly connected to the right side of the double-cone tank, a tank bevel gear formed on the outer wall of the hollow cylinder on the left side of the perforated lug, and an end bearing seat formed on the right side of the inner wall of the double-cone tank. The tank bevel gear is connected to the central bevel gear in a drive connection.

[0022] As a further implementation plan:

[0023] The stirring device includes a stirring core shaft that passes through a hollow cylinder and is inserted into a double-cone tank, a stirring blade formed on the left side of the stirring core shaft, an end disc formed on the right end of the stirring core shaft, a narrow-diameter cylinder formed on the left side of the end disc, a wide-diameter cylinder formed on the right side of the outer wall of the narrow-diameter cylinder, a transmission ring disposed on the inner wall of the left side of the narrow-diameter cylinder, a stirring bearing disposed on the outer wall of the stirring core shaft and cooperating with a bearing seat, and a rotary seal disposed on the outer wall of the stirring core shaft and cooperating with the hollow cylinder. The stirring device also includes a second compression spring disposed between the right limiting ring and the wide-diameter cylinder.

[0024] As a further implementation plan:

[0025] The reverse actuator includes:

[0026] The reverse contact component includes a rotatable reverse transmission ring disposed within the right limiting ring, a translational retaining ring formed on the outer wall of the reverse transmission ring and stopped on the left side of the right limiting ring, an insertion ring formed on the left side of the reverse transmission ring, and axial slots evenly distributed circumferentially on the left side of the insertion ring.

[0027] A reverse bevel gear is provided between the perforated lug and the left limiting ring. Axial inserts are evenly distributed on the right side of the reverse bevel gear, corresponding to the axial slots.

[0028] The second compression spring is disposed between the left limiting ring and the translation stop ring;

[0029] The forward transmission ring is located at the right end of the hollow cylinder, between the end disc and the transmission ring.

[0030] As a further implementation plan:

[0031] The adjustment device includes an adjustment base, a rotating element, and a moving element;

[0032] The adjustment base includes an adjustment cylinder formed on the right side of the upper cavity, an adjustment protrusion formed on the right side of the inner wall of the adjustment cylinder, and an anti-rotation insert formed on the left side of the inner wall of the adjustment cylinder.

[0033] The rotating element includes a rotatable internally threaded tube disposed inside the adjusting cylinder and a rotating ring groove formed on the outer wall of the internally threaded tube and rotatingly engaged with the adjusting convex ring.

[0034] The moving element includes an externally threaded rod screwed into the internally threaded tube and an anti-rotation side groove formed on the outer wall of the externally threaded rod and inserted into the anti-rotation plug.

[0035] Beneficial effects

[0036] The double cone dryer described in this case uses a stirring device to stir the material inside the double cone tank, thereby achieving a uniform distribution of the material and preventing caking.

[0037] The double-cone dryer described in this case has a stirring device that can select two modes for stirring the material:

[0038] In Mode 1, the stirring device rotates synchronously with the double cone tank, and stirring is achieved solely through the contact between the material and the stirring blades as it tumbles inside the tank. This mode is suitable for materials that are not prone to caking.

[0039] In mode two, the stirring device and the double cone tank rotate in opposite directions, greatly increasing the stirring frequency of the stirring blades on the materials in the tank, which is suitable for materials that are more prone to caking.

[0040] The double-cone dryer described in this case can also easily switch between the two modes via an adjustment device:

[0041] Rotating the internal threaded tube drives the external threaded rod and the anti-rotation side groove to move to the left. The external threaded rod drives the stirring device to move to the left, thereby disengaging the transmission ring from the forward transmission ring and enabling the transmission ring to connect with the reverse contact element and the reverse bevel gear. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of one embodiment of the double cone dryer.

[0043] Figure 2 This is a cross-sectional view of one embodiment of the double cone dryer.

[0044] Figure 3 This is a partial cross-sectional view of one embodiment of the double cone dryer.

[0045] Figure 4 yes Figure 2 An enlarged schematic diagram of one embodiment of part A.

[0046] Figure 5 yes Figure 2 An enlarged schematic diagram of another embodiment of part A.

[0047] Figure 6 yes Figure 2 An enlarged schematic diagram of another embodiment of part A.

[0048] Figure 7 This is a cross-sectional view of one embodiment of the intracavitary foundation.

[0049] Figure 8 This is a cross-sectional view of one embodiment of the stirring device.

[0050] Figure 9 yes Figure 4 An enlarged schematic diagram of one embodiment of part B.

[0051] Figure 10 yes Figure 4 An enlarged schematic diagram of another embodiment of part B.

[0052] In the picture:

[0053] a. Mounting bracket, a1. Left column, a2. Right housing, a21. Upper chamber, a22. Middle chamber, a23. Lower chamber, b. Double cone tank, c. Drive motor, d. Mixing assembly;

[0054] 1. Intracavitary base; 11. Left side through hole; 12. Lower through hole; 13. Lug with hole; 14. Left limiting ring; 15. Right limiting ring;

[0055] 2. Main input device; 21. Drive pulley; 22. Driven assembly; 22a. Driven spindle; 22b. Central bevel gear; 22c. Driven pulley; 22d. Conveyor belt;

[0056] 3. Tank drive; 31. Hollow cylinder; 32. Tank bevel gear; 33. End bearing housing;

[0057] 4. Stirring device; 41. Stirring core shaft; 42. Stirring blade; 43. End disc; 44. Narrow diameter cylinder; 45. Wide diameter cylinder; 46. Transmission ring; 47. Stirring bearing; 48. Rotary seal; 49. First compression spring;

[0058] 5. Reverse drive, 51. Reverse contact, 51a. Reverse drive ring, 51b. Translation retaining ring, 51c. Insertion ring, 51d. Axial slot, 52. Reverse bevel gear, 52a. Axial insertion rod, 53. Second compression spring;

[0059] 6. Forward drive ring;

[0060] 7. Adjusting device; 71. Adjusting base; 71a. Adjusting cylinder; 71b. Adjusting convex ring; 71c. Anti-rotation rod; 72. Rotating element

[0061] Components, 72a. Internally threaded tube, 72b. Rotating ring groove, 73. Moving element, 73a. Externally threaded rod, 73b. Anti-rotation side groove. Detailed Implementation

[0062] A double-cone dryer for veterinary drug production includes a mounting bracket a and a rotatable double-cone tank b mounted on the mounting bracket a. The mounting bracket a includes at least a left column a1, a right box a2, and a horizontal bottom plate a3. The right box a2 is divided into an upper cavity a21, a middle cavity a22, and a lower cavity a23 by two layers of partitions.

[0063] The double-cone tank b has an inner and outer double-layer structure, with a feed hole at the top and a discharge hole at the bottom.

[0064] Also includes:

[0065] The drive motor c is located inside the middle cavity a22;

[0066] The stirring assembly d is located inside the upper cavity a21 and is connected to the drive motor c. The stirring assembly d is used to drive the double cone tank b to rotate and stir the material inside the double cone tank b.

[0067] Furthermore,

[0068] The stirring assembly d includes at least:

[0069] The cavity base 1 includes a left through hole 11 located on the left side of the upper cavity a21 and a lower through hole 12 located at the lower end of the upper cavity a21 and communicating with the middle cavity a22. The upper cavity a21 is provided with a perforated lug 13, a left limiting ring 14, and a right limiting ring 15 from left to right.

[0070] The main input device 2 is connected to the drive motor c via a transmission.

[0071] The tank actuator 3 is connected to the main input device 2 for driving the double cone tank b to rotate;

[0072] The stirring device 4 is located inside the double cone tank b and is used to stir the materials to prevent them from sticking together and clumping.

[0073] The reverse transmission device 5 is connected to the main input device 2 and is used to drive the stirring device 4 to rotate in the opposite direction to the double cone tank.

[0074] The forward transmission ring 6 is connected to the tank transmission device 3 to drive the stirring device 4 to rotate synchronously with the double cone tank b;

[0075] Adjustment device 7 is located on the right side of the base 1 inside the cavity, and is used to switch the stirring device 4 to be connected to the reverse drive 5 or the forward drive ring 6.

[0076] As a further implementation plan:

[0077] The main input device 2 includes a drive pulley 21 driven by the output shaft of the drive motor c, and a driven assembly 22 rotatably mounted on the bottom plate of the upper cavity a21. The driven assembly 22 includes a driven spindle 22a, a central bevel gear 22b formed on the driven spindle 22a, and a driven pulley 22c formed at the lower end of the driven spindle 22a. The drive pulley 21 and the driven pulley 22c are connected by a conveyor belt 23.

[0078] As a further implementation plan:

[0079] The tank drive 3 includes a hollow cylinder 31 fixedly connected to the right side of the double-cone tank body b, a tank bevel gear 32 formed on the outer wall of the hollow cylinder 31 on the left side of the perforated lug 13, and an end bearing seat 33 formed on the right side of the inner wall of the double-cone tank body b. The tank bevel gear 32 is connected to the central bevel gear 22b in a drive connection.

[0080] As a further implementation plan:

[0081] The stirring device 4 includes a stirring core shaft 41 that passes through the hollow cylinder 31 and is inserted into the double cone tank b, a stirring blade 42 formed on the left side of the stirring core shaft 41, an end disc 43 formed on the right end of the stirring core shaft 41, a narrow-diameter cylinder 44 formed on the left side of the end disc 43, a wide-diameter cylinder 45 formed on the right side of the outer wall of the narrow-diameter cylinder 44, a transmission ring 46 provided on the inner wall of the left side of the narrow-diameter cylinder 44, a stirring bearing 47 provided on the outer wall of the stirring core shaft 41 and cooperating with the bearing seat 33, and a rotary seal 48 provided on the outer wall of the stirring core shaft 41 and cooperating with the hollow cylinder 31. The stirring device 4 also includes a second compression spring 49 provided between the right limiting ring 15 and the wide-diameter cylinder 45.

[0082] As a further implementation plan:

[0083] The reverse actuator 5 includes:

[0084] The reverse contact 51 includes a rotatable reverse transmission ring 51a disposed within the right limiting ring 15, a translational retaining ring 51b formed on the outer wall of the reverse transmission ring 51a and stopped on the left side of the right limiting ring 15, an insertion ring 51c formed on the left side of the reverse transmission ring 51a, and axial slots 51d evenly distributed circumferentially on the left side of the insertion ring 51c.

[0085] A reverse bevel gear 52 is disposed between the perforated lug 13 and the left limiting ring 14. Axial inserts 52a are evenly distributed on the right side of the reverse bevel gear 52, corresponding to the axial slots 51d.

[0086] The second compression spring 53 is disposed between the left limiting ring 14 and the translation stop ring 51b;

[0087] The forward transmission ring 6 is located at the right end of the hollow cylinder 31, between the end disc 43 and the transmission ring 46.

[0088] As a further implementation plan:

[0089] The adjustment device 7 includes an adjustment base 71, a rotating element 72, and a moving element 73;

[0090] The adjustment base 71 includes an adjustment cylinder 71a formed on the right side of the upper cavity a21, an adjustment protrusion ring 71b formed on the right side of the inner wall of the adjustment cylinder 71a, and an anti-rotation insertion rod 71c formed on the left side of the inner wall of the adjustment cylinder 71a.

[0091] The rotating element 72 includes an internally threaded tube 72a rotatably disposed inside the adjusting cylinder 71a, and a rotating ring groove 72b formed on the outer wall of the internally threaded tube 72a and rotatably engaged with the adjusting convex ring 71b.

[0092] The moving element 73 includes an externally threaded rod 73a screwed into the internally threaded tube 72a and an anti-rotation side groove 73b formed on the outer wall of the externally threaded rod 73a and inserted into the anti-rotation insert 71c.

[0093] This case also discloses a method for using a double-cone dryer, which specifically includes the following steps:

[0094] Step 1, the double-cone tank b rotates:

[0095] The drive motor c drives the drive pulley 21 to rotate, and drives the driven pulley 22c, driven spindle 22a, and central bevel gear 22b to rotate via the conveyor belt 23;

[0096] The central bevel gear 22b drives the tank bevel gear 32, the hollow cylinder 31, and the double cone tank b to rotate.

[0097] Step 2, the stirring device 4 rotates:

[0098] Step 2.1, the stirring device 4 rotates synchronously with the double-cone tank b:

[0099] As per the instruction manual Figure 5 , 10 As shown:

[0100] Under normal conditions, the first compression spring 49 drives the wide-diameter cylinder 45 and the transmission ring 46 to move to the right and realizes the transmission connection between the transmission ring 46 and the forward transmission ring 6.

[0101] The central bevel gear 22b drives the tank bevel gear 32, hollow cylinder 31, positive transmission ring 6, and wide-diameter cylinder 45 to rotate, thereby realizing the synchronous rotation of the stirring device 4 and the double cone tank b.

[0102] Step 2.2, switch the transmission direction:

[0103] As per the instruction manual Figure 4 , 9 As shown:

[0104] Rotate the internally threaded tube 72a to drive the externally threaded rod 73a and the anti-rotation side groove 73b to move to the left;

[0105] The external threaded rod 73a acts on the end disk 43, thereby driving the stirring device 4 to move to the left against the damping of the first compression spring 49;

[0106] This causes the transmission ring 46 to disengage from the forward transmission ring 6 and enables the transmission ring 46 to be connected to the reverse contact 51 and the reverse bevel gear 52.

[0107] Step 2.3: The stirring device 4 rotates in the opposite direction to the double-cone tank b.

[0108] The central bevel gear 22b drives the reverse bevel gear 52, the reverse contact member 51, and the transmission ring 46 to rotate in a direction opposite to that of the double cone tank b in step 1, thereby realizing the reverse transmission between the stirring device 4 and the double cone tank b.

[0109] It should be noted that, because the impact force between the stirring blades 42 of the stirring device 4 and the material inside the double-cone tank b in step 2 (the stirring device 4 and the double-cone tank b rotate in opposite directions) is significantly greater than the impact force in step 1 (the stirring device 4 and the double-cone tank b rotate synchronously), the transmission contact between the reverse contact member 51 and the transmission ring 46 is friction transmission. This transmission method can ensure transmission effectiveness and allow the stirring blades to generate a certain buffer through slippage of the friction transmission structure when receiving a large impact force from large pieces of material, thus avoiding damage to the transmission structure due to long-term exposure to sudden forces.

[0110] Furthermore, by adjusting the extreme position of the external threaded rod 73a moving to the left, the compressive stress and friction between the transmission ring 46 and the reverse contact member 51 can be adjusted, thereby adjusting the magnitude of the extreme friction force that needs to be overcome when the friction transmission between the two causes slippage.

[0111] Thanks to the improved technical solution described above, the weak friction between the stirring bearing 47, the rotary seal 48 and the tank drive 3 of the stirring device 4 tends to achieve the forward transmission of the stirring device 4. By adjusting the above-mentioned limit friction to prevent it from being too small, interference with the reverse rotation of the stirring device 4 and the double cone tank b is avoided.

[0112] It should be noted that a thrust ball bearing is provided on the right side of the end disc 43, which abuts against the external threaded rod 73a.

[0113] It should be noted that the left side of the double cone tank b is rotatably mounted on the left column a1 and is equipped with a vacuum device to extract air from the inner cavity of the double cone tank b to maintain a vacuum; a heating medium is provided between the inner and outer layers of the double cone tank b of the double cone dryer and connected to a heating device, which is also mounted on the left column a1.

Claims

1. A double-cone dryer for veterinary drug production, comprising a mounting bracket (a) and a rotatable double-cone tank (b) mounted on the mounting bracket (a), characterized in that: The mounting bracket (a) includes at least a left column (a1), a right box (a2), and a horizontal base plate (a3). The right box (a2) is divided into an upper cavity (a21), a middle cavity (a22), and a lower cavity (a23) by two layers of partitions. The double-cone tank (b) has an inner and outer double-layer structure, with a feed hole at the top and a discharge hole at the bottom. Also includes: The drive motor (c) is located inside the central cavity (a22); A stirring assembly (d) is disposed in the upper cavity (a21) and is connected to the drive motor (c) for driving the double cone tank (b) to rotate and stirring the material in the double cone tank (b); The stirring assembly (d) includes at least: The cavity base (1) includes a left through hole (11) on the left side of the upper cavity (a21) and a lower through hole (12) at the lower end of the upper cavity (a21) and communicating with the middle cavity (a22). The upper cavity (a21) is provided with a perforated lug (13), a left limiting ring (14) and a right limiting ring (15) from left to right. The main input device (2) is connected to the drive motor (c) in a transmission manner; The tank actuator (3) is connected to the main input device (2) for driving the double cone tank (b) to rotate; A stirring device (4) is installed inside the double cone tank (b) to stir the materials and prevent them from sticking together and clumping. The reverse transmission device (5) is connected to the main input device (2) to drive the stirring device (4) to rotate in the opposite direction to the double cone tank. The forward drive ring (6) is connected to the tank drive (3) to drive the stirring device (4) to rotate synchronously with the double cone tank (b); An adjustment device (7) is located on the right side of the base (1) inside the cavity, used to switch the stirring device (4) to be connected to the reverse drive (5) or the forward drive ring (6).

2. The double-cone dryer for veterinary drug production according to claim 1, characterized in that: The total input device (2) includes a drive pulley (21) driven by the output shaft of the drive motor (c) and a driven assembly (22) rotatably mounted on the bottom plate of the upper cavity (a21). The driven assembly (22) includes a driven spindle (22a), a central bevel gear (22b) formed on the driven spindle (22a), and a driven pulley (22c) formed at the lower end of the driven spindle (22a). The drive pulley (21) and the driven pulley (22c) are connected by a transmission belt (23).

3. The double-cone dryer for veterinary drug production according to claim 2, characterized in that: The tank drive (3) includes a hollow cylinder (31) fixedly connected to the right side of the double-cone tank (b), a tank bevel gear (32) formed on the outer wall of the hollow cylinder (31) to the left of the perforated lug (13), and an end bearing seat (33) formed on the right side of the inner wall of the double-cone tank (b). The tank bevel gear (32) is connected to the central bevel gear (22b) for transmission.

4. The double-cone dryer for veterinary drug production according to claim 3, characterized in that: The stirring device (4) includes a stirring core shaft (41) that passes through the hollow cylinder (31) and is inserted into the double cone tank (b), a stirring blade (42) formed on the left side of the stirring core shaft (41), an end disc (43) formed on the right end of the stirring core shaft (41), a narrow-diameter cylinder (44) formed on the left side of the end disc (43), a wide-diameter cylinder (45) formed on the right side of the outer wall of the narrow-diameter cylinder (44), a transmission ring (46) provided on the inner wall of the left side of the narrow-diameter cylinder (44), a stirring bearing (47) provided on the outer wall of the stirring core shaft (41) and cooperating with the bearing seat (33), and a rotary seal (48) provided on the outer wall of the stirring core shaft (41) and cooperating with the hollow cylinder (31). The stirring device (4) also includes a second compression spring (49) provided between the right limiting ring (15) and the wide-diameter cylinder (45).

5. A double-cone dryer for veterinary drug production according to claim 4, characterized in that: The reverse actuator (5) includes: The reverse contact (51) includes a rotatable reverse transmission ring (51a) disposed in the right limiting ring (15), a translational retaining ring (51b) formed on the outer wall of the reverse transmission ring (51a) and stopped on the left side of the right limiting ring (15), an insertion ring (51c) formed on the left side of the reverse transmission ring (51a), and axial slots (51d) evenly distributed on the left side of the insertion ring (51c). A reverse bevel gear (52) is provided between the perforated lug (13) and the left limiting ring (14). The right side of the reverse bevel gear (52) is evenly distributed with axial inserts (52a) that are inserted into the axial slots (51d) one by one. The second compression spring (53) is disposed between the left limiting ring (14) and the translation stop ring (51b); The forward transmission ring (6) is located at the right end of the hollow cylinder (31), between the end disc (43) and the transmission ring (46).

6. A double-cone dryer for veterinary drug production according to claim 5, characterized in that: The adjusting device (7) includes an adjusting base (71), a rotating element (72), and a moving element (73); The adjustment base (71) includes an adjustment cylinder (71a) formed on the right side of the upper cavity (a21), an adjustment protrusion ring (71b) formed on the right side of the inner wall of the adjustment cylinder (71a), and an anti-rotation insert (71c) formed on the left side of the inner wall of the adjustment cylinder (71a). The rotating element (72) includes a rotatable internally threaded tube (72a) disposed in the adjusting cylinder (71a) and a rotating ring groove (72b) formed on the outer wall of the internally threaded tube (72a) and rotatingly engaged with the adjusting convex ring (71b). The moving element (73) includes an externally threaded rod (73a) screwed into the internally threaded tube (72a) and an anti-rotation side groove (73b) formed on the outer wall of the externally threaded rod (73a) and inserted into the anti-rotation insert (71c).

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