High-speed centrifugal spray dryer capable of uniformly spraying

Abstract

A high-speed centrifugal spray dryer capable of spraying evenly comprises a dryer body, two connecting plates are fixed to the middle of the dryer body, a connecting box is rotatably connected between the two connecting plates, a suction pump is fixed to the lower end of the dryer body and communicated with a connecting pipe, and the connecting pipe is fixedly connected with the connecting box. A supporting plate is fixed to the drying machine body, two mounting plates are fixed to the supporting plate, a through hole is formed in the supporting plate, an eccentric gear assembly is arranged between the two mounting plates, the eccentric gear assembly comprises a first eccentric gear, a second eccentric gear and two clamping plates, and a first motor is mounted on each mounting plate; connecting rods are rotationally connected to the two sides of the second eccentric gear, a fixing rod is fixedly connected between the two connecting rods, a lifting rod is fixed to the fixing rod, and the bottom end of the lifting rod is rotationally connected with the connecting box. According to the utility model, the spraying angle can be adjusted, and the uniformity of spraying work can be better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a high-speed centrifugal spray dryer with uniform spraying. Background Art

[0002] Spray drying is the most widely used process in liquid forming and drying industry. It is most suitable for producing powdered and granular solid products from solutions, emulsions, suspensions and paste liquid raw materials. Therefore, when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet precise standards, spray drying is an ideal process.

[0003] However, the existing centrifugal spray dryer has uneven spraying, which not only affects the later processing effect, but also affects the quality of the finished product, while reducing the overall work efficiency and causing inconvenience to the staff.

[0004] Therefore, the utility model proposes a technical solution to solve the problem of uneven spraying in the existing centrifugal spray dryer. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to solve the problem of uneven spraying of the existing centrifugal spray dryer and to provide a high-speed centrifugal spray dryer with uniform spraying.

[0006] A high-speed centrifugal spray dryer with uniform spray, comprising a dryer body, an atomizer is fixedly connected to the left side of the top of the dryer body, the top of the atomizer is connected to a feed hopper, the left side of the dryer body is connected to an air inlet pipe, two connecting plates symmetrically arranged front and back are fixed to the middle position of the right side of the dryer body, a connecting box is rotatably connected between the two connecting plates, a suction pump is fixedly installed at the lower end of the right side of the dryer body, the feeding end of the suction pump is connected to the bottom of the right side of the dryer body through a pipeline, the discharge end of the suction pump is connected to a hose through a pipeline, the top of the hose is connected to a connecting pipe, one end of the connecting pipe is provided with a plurality of nozzles, the other end of the connecting pipe is fixedly connected to the connecting box, a support plate is fixed to the top end of the right side of the dryer body, two mounting plates are symmetrically fixed to the top of the support plate, and the support plate is longitudinally penetrated A through hole is penetrated between the two mounting plates, an eccentric gear assembly is arranged between the two mounting plates, the eccentric gear assembly comprises a first eccentric gear, a second eccentric gear meshing with the first eccentric gear, and two clamping plates respectively located on both sides of the first eccentric gear and the second eccentric gear, the two clamping plates are fixedly connected by a connecting piece, both ends of the first eccentric gear and both ends of the second eccentric gear are respectively rotatably connected to the two clamping plates through bearings, the first eccentric gear is rotatably connected between the two mounting plates through a rotating shaft, a first motor for driving the rotating shaft to rotate is installed on the mounting plate, both sides of the second eccentric gear are rotatably connected with connecting rods, a fixing rod is fixedly connected between the ends of the two connecting rods facing away from the second eccentric gear, a lifting rod is fixed on the fixing rod, and the bottom end of the lifting rod passes through the through hole and is rotatably connected to the connecting box.

[0007] By adopting the above technical solution, when in use, the material is atomized into droplets through the atomizer and then directly sprayed into the dryer body, and then hot air enters the inner cavity of the dryer body through the air inlet pipe to dry the atomized material, and then the dried material is pumped to the inner cavity of the connecting pipe through the suction pump and the hose, and the dried material is atomized and sprayed through the nozzle. Start the first motor, and the output shaft of the first motor rotates to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the first eccentric gear to rotate. The rotation of the first eccentric gear will drive the second eccentric gear meshing with it to rotate together, and will also drive the second eccentric gear to move up and down. Since the first eccentric gear and the second eccentric gear are both rotatably connected to the two clamping plates through bearings, the first eccentric gear and the second eccentric gear rotate on the clamping plate, and the clamping plate will not rotate with the rotation of the first eccentric gear and the second eccentric gear, but will be accompanied by the up and down displacement of the second eccentric gear. The rotation and up and down movement of the second eccentric gear can drive the connecting rod, the connecting rod drives the fixed rod, and the fixed rod drives the lifting rod. At the same time, since the connecting rod is rotatably connected to the second eccentric gear, one end of the lifting rod passes through the through hole, and the through hole limits the lifting rod to only move up and down. The up and down movement of the lifting rod can drive the connecting box to rotate up and down around the connecting plate, and the rotation of the connecting box drives the connecting pipe and the nozzle thereon to rotate up and down, thereby adjusting the spraying angle, and better ensuring the uniformity of the spraying work.

[0008] A further configuration of the utility model is that a universal ball bearing which fits with the outer wall of the lifting rod is arranged on the inner wall of the through hole.

[0009] By adopting the above technical solution, when the lifting rod slides up and down, the outer wall of the lifting rod will slide on the universal ball, reducing the friction between the lifting rod and the inner wall of the through hole, making the sliding of the lifting rod smoother.

[0010] Further arrangement of the utility model: the connecting box is a cylindrical structure with an opening at the right end, and the end of the connecting pipe facing away from the nozzle is inserted into the connecting box, and a driving device for driving the connecting pipe to rotate forward and backward is arranged in the connecting box, and the driving device includes a second motor, a turntable and a rotating rod, the second motor is fixedly installed in the connecting box at one end facing away from the connecting pipe, the center position of the bottom end of the turntable is fixedly connected to the output shaft of the second motor, the top edge position of the turntable is rotatably connected with a rotating block, one end of the rotating rod is provided with a strip-shaped through groove for the rotating block to be inserted and slide, and the other end of the rotating rod is rotatably connected to the bottom of the inner cavity of the connecting box through a pin shaft, and a fan-shaped rotating plate is arranged at one end of the rotating rod close to the pin shaft, and a fixed plate is arranged at the end of the fan-shaped rotating plate facing away from the rotating rod, and the connecting pipe is fixedly connected to the fixed plate.

[0011] By adopting the above technical solution, the second motor is started, and the output shaft of the second motor rotates to drive the turntable connected to it to rotate. The rotation of the turntable drives the rotating block on the edge of the turntable to rotate. The rotating block is connected to the rotating rod through a strip-shaped through groove. As the rotating block rotates, the relative position of the rotating block in the strip-shaped through groove will keep changing by reciprocating motion. Since one end of the rotating rod is rotatably connected to the bottom of the inner cavity of the connecting box through a pin shaft, the rotating rod will swing back and forth accordingly. The reciprocating swing of the rotating rod drives the fan-shaped rotating plate fixedly connected to it to swing back and forth, the fan-shaped rotating plate drives the fixed plate to swing back and forth, and the fixed plate drives the connecting pipe and the nozzle thereon to swing back and forth, thereby adjusting the angle of rotation of the nozzle back and forth, further ensuring the uniformity of the spraying work.

[0012] A further configuration of the utility model is that the length of the strip-shaped through slot is greater than the diameter of the turntable.

[0013] By adopting the above technical solution, as the rotating block rotates with the turntable, the relative position of the rotating block in the bar-shaped through groove will continue to change by reciprocating motion. When the rotating block reaches the two ends of the bar-shaped through groove, the rotating block will not collide with the groove wall of the bar-shaped through groove, thereby avoiding damage to the rotating block and the bar-shaped through groove and extending the service life of the rotating block and the bar-shaped through groove.

[0014] A further configuration of the utility model is that the width of the rotating block is equal to that of the strip-shaped through slot.

[0015] By adopting the above technical solution, both ends of the rotating block are in contact with the strip through slot, and the rotation of the rotating block can immediately drive the rotating rod to rotate, thereby improving the sensitivity of the rotating rod and, at the same time, improving the connection stability between the rotating block and the strip through slot.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] A high-speed centrifugal spray dryer with uniform spraying. When in use, the material is atomized into droplets through an atomizer and then directly sprayed into the dryer body. Then hot air enters the inner cavity of the dryer body through an air inlet pipe to dry the atomized material. Then the dried material is pumped to the inner cavity of the connecting pipe through a suction pump and a hose, and the dried material is atomized and sprayed through a nozzle. Start the first motor, and the output shaft of the first motor rotates to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the first eccentric gear to rotate. The rotation of the first eccentric gear will drive the second eccentric gear meshing with it to rotate together, and will also drive the second eccentric gear to move up and down. Since the first eccentric gear and the second eccentric gear are both rotatably connected to the two clamping plates through bearings, the first eccentric gear and the second eccentric gear rotate on the clamping plate, and the clamping plate will not rotate with the rotation of the first eccentric gear and the second eccentric gear, but will be accompanied by the up and down displacement of the second eccentric gear. The rotation and up and down movement of the second eccentric gear can drive the connecting rod, the connecting rod drives the fixed rod, and the fixed rod drives the lifting rod. At the same time, since the connecting rod is rotatably connected to the second eccentric gear, one end of the lifting rod passes through the through hole, and the through hole limits the lifting rod to only move up and down. The up and down movement of the lifting rod can drive the connecting box to rotate up and down around the connecting plate, and the rotation of the connecting box drives the connecting pipe and the nozzle thereon to rotate up and down, thereby adjusting the spraying angle, and better ensuring the uniformity of the spraying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a high-speed centrifugal spray dryer with uniform spraying in the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 This is a structural schematic diagram of an eccentric gear assembly of a centrifugal spray dryer of the utility model;

[0021] Figure 4 It is a cross-sectional view of a connection box of a centrifugal spray dryer of the utility model;

[0022] Figure 5 The utility model is a top view of a driving device of a centrifugal spray dryer.

[0023] Figure numerals: 1. dryer body; 2. atomizer; 3. feed hopper; 4. air inlet pipe; 5. connecting plate; 6. connecting box; 7. suction pump; 8. hose; 9. connecting pipe; 10. nozzle; 11. support plate; 12. mounting plate; 13. first eccentric gear; 14. second eccentric gear; 15. clamping plate; 16. connecting piece; 17. rotating shaft; 18. first motor; 19. connecting rod; 20. fixing rod; 21. lifting rod; 22. universal ball; 23. second motor; 24. turntable; 25. rotating rod; 26. rotating block; 27. strip through groove; 28. pin shaft; 29. ​​fan-shaped rotating plate; 30. fixing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A high-speed centrifugal spray dryer with uniform spray, such as Figure 1-Figure 5 As shown, it includes a dryer body 1, an atomizer 2 is fixedly connected to the left side of the top of the dryer body 1, a feed hopper 3 is connected to the top of the atomizer 2, and an air inlet pipe 4 is connected to the left side of the dryer body 1.

[0026] Two connection plates 5 symmetrically arranged front and back are fixed to the middle position on the right side of the dryer body 1 , and a connection box 6 is rotatably connected between the two connection plates 5 . The connecting box 6 is a cylindrical structure with an opening at the right end. A driving device is arranged in the connecting box 6, and the driving device includes a second motor 23, a turntable 24 and a rotating rod 25. The second motor 23 is fixedly installed in the connecting box 6 at one end away from the connecting pipe 9. The center position of the bottom end of the turntable 24 is fixedly connected to the output shaft of the second motor 23. The top edge position of the turntable 24 is rotatably connected with a rotating block 26. One end of the rotating rod 25 is provided with a strip-shaped through groove 27 for the rotating block 26 to be inserted and slide. The length of the strip-shaped through groove 27 is greater than the diameter of the turntable 24, and the width of the rotating block 26 is equal to that of the strip-shaped through groove 27. The other end of the rotating rod 25 is rotatably connected to the bottom of the inner cavity of the connecting box 6 through a pin shaft 28. A fan-shaped rotating plate 29 is arranged at one end of the rotating rod 25 close to the pin shaft 28, and a fixed plate 30 is arranged at one end of the fan-shaped rotating plate 29 away from the rotating rod 25.

[0027] A suction pump 7 is fixedly installed at the lower end of the right side of the dryer body 1. The feed end of the suction pump 7 is connected to the bottom of the right side of the dryer body 1 through a pipeline. The discharge end of the suction pump 7 is connected to a hose 8 through a pipeline. The top of the hose 8 is connected to a connecting pipe 9. A plurality of nozzles 10 are arranged at one end of the connecting pipe 9. The end of the connecting pipe 9 facing away from the nozzle 10 is inserted into the connecting box 6 and fixedly connected to the fixing plate 30.

[0028] A support plate 11 is fixed to the top right side of the dryer body 1, and two mounting plates 12 are symmetrically fixed to the top of the support plate 11. A through hole is longitudinally penetrated through the support plate 11 and located between the two mounting plates 12. A universal ball 22 is arranged on the inner wall of the through hole. An eccentric gear assembly is arranged between the two mounting plates 12, and the eccentric gear assembly includes a first eccentric gear 13, a second eccentric gear 14 meshing with the first eccentric gear 13, and two clamping plates 15 respectively located on both sides of the first eccentric gear 13 and the second eccentric gear 14. The two clamping plates 15 are fixedly connected by a connecting piece 16, and both ends of the first eccentric gear 13 and both ends of the second eccentric gear 14 are respectively rotatably connected to the two clamping plates 15 through bearings. The first eccentric gear 13 is rotatably connected between the two mounting plates 12 through a rotating shaft 17, and a first motor 18 for driving the rotating shaft 17 to rotate is installed on the mounting plate 12. Both sides of the second eccentric gear 14 are rotatably connected with connecting rods 19, and a fixing rod 20 is fixedly connected between the ends of the two connecting rods 19 facing away from the second eccentric gear 14, and a lifting rod 21 is fixed on the fixing rod 20, and the bottom end of the lifting rod 21 passes through the through hole and is rotatably connected to the connecting box 6.

[0029] Working principle: When in use, the material is atomized into droplets through the atomizer 2, and then directly sprayed into the dryer body 1, and then the hot air enters the inner cavity of the dryer body 1 through the air inlet pipe 4 to dry the atomized material, and then the dried material is pumped to the inner cavity of the connecting pipe 9 through the suction pump 7 and the hose 8, and the dried material is atomized and sprayed through the nozzle 10. Start the first motor 18, the output shaft of the first motor 18 rotates to drive the rotating shaft 17 to rotate, and the rotation of the rotating shaft 17 drives the first eccentric gear 13 to rotate. The rotation of the first eccentric gear 13 will drive the second eccentric gear 14 meshing therewith to rotate together, and will also drive the second eccentric gear 14 to move up and down. Since the first eccentric gear 13 and the second eccentric gear 14 are both rotatably connected to the two splints 15 through bearings, the first eccentric gear 13 and the second eccentric gear 14 rotate on the splint 15, and the splint 15 will not rotate with the rotation of the first eccentric gear 13 and the second eccentric gear 14, but The second eccentric gear 14 will move up and down along with its rotation and up and down movement. The rotation and up and down movement of the second eccentric gear 14 can drive the connecting rod 19, the connecting rod 19 drives the fixed rod 20, and the fixed rod 20 drives the lifting rod 21. At the same time, since the connecting rod 19 is rotatably connected to the second eccentric gear 14, one end of the lifting rod 21 passes through the through hole, and the through hole limits the lifting rod 21 to move up and down. The up and down movement of the lifting rod 21 can drive the connecting box 6 to rotate up and down around the connecting plate 5. The rotation of the connecting box 6 drives the connecting pipe 9 and the nozzle 10 thereon to rotate up and down, thereby adjusting the spraying angle and better ensuring the uniformity of the spraying work. Start the second motor 23, and the output shaft of the second motor 23 rotates to drive the turntable 24 connected thereto to rotate. The rotation of the turntable 24 drives the rotating block 26 on the edge of the turntable 24 to rotate. The rotating block 26 is connected to the rotating rod 25 through the strip groove 27. As the rotating block 26 rotates, the relative position of the rotating block 26 in the strip groove 27 will keep changing by reciprocating motion. Since one end of the rotating rod 25 is rotatably connected to the bottom of the inner cavity of the connecting box 6 through the pin 28, the rotating rod 25 will swing back and forth accordingly. The reciprocating swing of the rotating rod 25 drives the fan-shaped rotating plate 29 fixedly connected thereto to swing back and forth, and the fan-shaped rotating plate 29 drives the fixed plate 30 to swing back and forth. The fixed plate 30 drives the connecting pipe 9 and the nozzle 10 thereon to swing back and forth, thereby adjusting the angle of rotation of the nozzle 10 back and forth, further ensuring the uniformity of the spraying work.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-speed centrifugal spray dryer with uniform spray, comprising a dryer body (1), an atomizer (2) fixedly connected to the left side of the top of the dryer body (1), a feed hopper (3) connected to the top of the atomizer (2), an air inlet pipe (4) connected to the left side of the dryer body (1), two connecting plates (5) symmetrically arranged front and back are fixed to the middle position of the right side of the dryer body (1), a connecting box (6) is rotatably connected between the two connecting plates (5), and the right side of the dryer body (1) is connected to the air inlet pipe (4). A suction pump (7) is fixedly installed at the lower end of the dryer body (1), the feed end of the suction pump (7) is connected to the bottom of the right side of the dryer body (1) through a pipeline, the discharge end of the suction pump (7) is connected to a hose (8) through a pipeline, the top of the hose (8) is connected to a connecting pipe (9), one end of the connecting pipe (9) is provided with a plurality of nozzles (10), the other end of the connecting pipe (9) is fixedly connected to the connecting box (6), and a support plate (11) is fixed to the top end of the right side of the dryer body (1), characterized in that: Two mounting plates (12) are symmetrically fixed at the top of the support plate (11); a through hole is longitudinally opened on the support plate (11) and is located between the two mounting plates (12); an eccentric gear assembly is arranged between the two mounting plates (12); the eccentric gear assembly comprises a first eccentric gear (13), a second eccentric gear (14) meshing with the first eccentric gear (13), and two clamping plates (15) respectively located on both sides of the first eccentric gear (13) and the second eccentric gear (14); the two clamping plates (15) are fixedly connected by a connecting piece (16); the two ends of the first eccentric gear (13) and the second eccentric gear (14) are fixedly connected to each other by a connecting piece (16); Both ends of the wheel (14) are rotatably connected to the two clamping plates (15) via bearings, the first eccentric gear (13) is rotatably connected between the two mounting plates (12) via a rotating shaft (17), a first motor (18) for driving the rotating shaft (17) to rotate is mounted on the mounting plate (12), both sides of the second eccentric gear (14) are rotatably connected to connecting rods (19), a fixing rod (20) is fixedly connected between the ends of the two connecting rods (19) away from the second eccentric gear (14), a lifting rod (21) is fixed on the fixing rod (20), the bottom end of the lifting rod (21) passes through the through hole and is rotatably connected to the connection box (6).

2. A high-speed centrifugal spray dryer with uniform spraying according to claim 1, characterized in that: A universal ball (22) is arranged on the inner wall of the through hole and is in contact with the outer wall of the lifting rod (21).

3. A high-speed centrifugal spray dryer with uniform spraying according to claim 1, characterized in that: The connection box (6) is a cylindrical structure with an opening at the right end. The end of the connection pipe (9) facing away from the nozzle (10) is inserted into the connection box (6). A driving device for driving the connection pipe (9) to rotate forward and backward is arranged in the connection box (6). The driving device comprises a second motor (23), a rotating disk (24) and a rotating rod (25). The second motor (23) is fixedly installed at the end of the connection box (6) facing away from the connection pipe (9). The center position of the bottom end of the rotating disk (24) is fixedly connected to the output shaft of the second motor (23). The rotating disk (24) is fixedly connected to the output shaft of the second motor (23). 4) is rotatably connected with a rotating block (26), one end of the rotating rod (25) is provided with a strip-shaped through groove (27) for the rotating block (26) to be inserted and slide, the other end of the rotating rod (25) is rotatably connected with the bottom of the inner cavity of the connecting box (6) through a pin shaft (28), one end of the rotating rod (25) close to the pin shaft (28) is provided with a fan-shaped rotating plate (29), and the end of the fan-shaped rotating plate (29) away from the rotating rod (25) is provided with a fixed plate (30), and the connecting pipe (9) is fixedly connected to the fixed plate (30).

4. A high-speed centrifugal spray dryer with uniform spraying according to claim 3, characterized in that: The length of the strip-shaped through groove (27) is greater than the diameter of the rotating disk (24).

5. A high-speed centrifugal spray dryer with uniform spraying according to claim 4, characterized in that: The width of the rotating block (26) is equal to that of the strip-shaped through slot (27).

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