Spray drying device for preparing multi-dimensional cell nutrition powder

Abstract

The utility model discloses a spray drying device for preparing multi-dimensional cell nutrition powder, which belongs to the technical field of spray drying devices and comprises a drying tower, an air blower and a heating box are arranged on one side of the drying tower, an inner cylinder, a centrifugal atomizer, an air ejector pipe and a scraping ring are arranged in the drying tower, and a mounting cavity is arranged between the inner cylinder and the inner wall of the drying tower. A driving mechanism is arranged in the mounting cavity, a vibration motor is arranged on the outer wall of the bottom of the drying tower, the drying tower is connected with a cyclone separator through a first discharging pipe, a second discharging pipe is arranged at the bottom end of the cyclone separator, the cyclone separator is connected with a bag-type dust collector through a third discharging pipe, and a fourth discharging pipe is arranged at the bottom end of the bag-type dust collector; and the bag-type dust collector is connected with the induced draft fan through a fifth discharge pipe. By arranging the air spraying pipe, hot air is evenly blown into the inner cylinder, and the drying efficiency is improved; by arranging a scraping ring, the inner wall of the inner cylinder is cleaned in time, normal operation of equipment is facilitated, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray drying devices, in particular to a spray drying device for preparing multidimensional cell nutrient powder. Background Art

[0002] A spray drying device is required in the processing of multi-dimensional cellular nutritional powder. The spray drying device can directly convert a solution or suspension into a powdered product with uniform composition. Most existing spray drying devices have their heating devices located at the top of the equipment, resulting in uneven internal temperature. When the water-containing multi-dimensional cellular nutritional powder comes into contact with the cooler air, the water evaporates incompletely, the drying is inadequate, and the drying efficiency is low, which reduces the processing efficiency of the multi-dimensional cellular nutritional powder. Furthermore, most existing spray drying devices are prone to wall sticking. When too much sticky powder adheres to the inner wall of the spray drying tower, it is detrimental to the operation of the equipment and is prone to scorched powder, affecting product quality. Utility Model Content

[0003] The utility model aims to provide a spray drying device for preparing multidimensional cell nutrient powder, which solves the problems of uneven internal temperature in existing spray drying devices, which affects drying efficiency, easily causes wall sticking, is detrimental to equipment operation, and affects product quality.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The utility model discloses a spray drying device for preparing multidimensional cellular nutrient powder, comprising a drying tower, a blower is provided on one side of the drying tower, the blower is communicated with a heating box, the heating box is communicated with the drying tower through an air inlet pipe, an inner cylinder is provided inside the drying tower, a centrifugal atomizer is provided at the center of the top surface of the inner cylinder, the centrifugal atomizer is connected to a raw material barrel through a liquid inlet pipe, an air jet pipe is provided around the centrifugal atomizer, the air jet pipe is communicated with the air inlet pipe, and a nozzle is provided inside the inner cylinder for cleaning the inner wall of the inner cylinder. A scraper ring is provided, an installation cavity is provided between the inner cylinder and the inner wall of the drying tower, a driving mechanism for driving the scraper ring to move is provided in the installation cavity, a vibration motor is provided on the outer wall of the bottom of the drying tower, a first discharge pipe is provided at the bottom end of the drying tower, the first discharge pipe is connected to the cyclone separator, a second discharge pipe is provided at the bottom end of the cyclone separator, the cyclone separator is connected to the bag dust collector through the third discharge pipe, the bottom end of the bag dust collector is provided with a fourth discharge pipe, and the bag dust collector is connected to the induced draft fan through the fifth discharge pipe.

[0006] Furthermore, the air injection pipe is configured as a spiral pipe, and a plurality of air injection holes are provided on the air injection pipe.

[0007] Furthermore, the cross section of the air injection pipe is set to be circular, rectangular or polygonal.

[0008] Furthermore, the driving mechanism includes two screws, which are arranged in parallel. A screw seat is threadedly connected to the screw. The two screw seats pass through the through groove on the side wall of the inner cylinder and are connected to the scraper ring. One of the screws is connected to the power assembly, and the two screws are connected through a transmission assembly.

[0009] Furthermore, the power assembly includes a motor, which is installed on the top surface of the drying tower. A driving bevel gear is installed on the output shaft of the motor, and a driven bevel gear meshing with the driving bevel gear is installed on one of the lead screws.

[0010] Furthermore, the transmission assembly includes a driving sprocket, which is mounted on the lead screw on which the driven bevel gear is mounted, and a driven sprocket is mounted on another lead screw, and the driving sprocket and the driven sprocket are connected by a chain transmission.

[0011] Furthermore, a discharge door is provided on the side of the first discharge pipe.

[0012] Furthermore, the second discharge pipe and the fourth discharge pipe are provided with discharge valves.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] The utility model provides a spiral air injection pipe so that hot air is evenly blown into the interior of the inner cylinder. The hot air surrounds the centrifugal atomizer, so that the mist liquid sprayed by the centrifugal atomizer is quickly dried, thereby improving the drying efficiency. The scraper ring is provided so that the inner wall of the inner cylinder can be cleaned in time to avoid the phenomenon of wall sticking, which is beneficial to the normal operation of the equipment and the improvement of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of the spray drying device for preparing multidimensional cell nutrient powder of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the drying tower of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the spray drying device used to prepare the multi-dimensional cell nutrition powder of the utility model; (part of the structure is omitted)

[0019] Figure 4This is a schematic diagram of the three-dimensional structure of the spray drying device for preparing the multi-dimensional cell nutrition powder of the utility model from another angle (part of the structure is omitted)

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the air injection pipe with a circular cross section of the utility model (the air injection hole is omitted)

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the jet pipe with a rectangular cross section of the utility model (the jet hole is omitted)

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the jet pipe with a hexagonal cross section of the utility model. (The jet hole is omitted)

[0023] Explanation of the accompanying symbols: 1. Drying tower; 2. Blower; 3. Heating box; 4. Air inlet pipe; 5. Jet pipe; 6. Liquid inlet pipe; 7. Centrifugal atomizer; 8. Inner cylinder; 9. Lead screw; 10. Lead screw seat; 11. Scraper ring; 12. Motor; 13. Driving bevel gear; 14. Driven bevel gear; 15. Driving sprocket; 16. Driven sprocket; 17. Chain; 18. Vibrating motor; 19. First discharge pipe; 20. Cyclone separator; 21. Second discharge pipe; 22. Third discharge pipe; 23. Bag dust collector; 24. Fourth discharge pipe; 25. Induced draft fan; 26. Fifth discharge pipe. DETAILED DESCRIPTION

[0024] like Figure 1-7As shown, a spray drying device for preparing multidimensional cellular nutrient powder comprises a drying tower 1, a blower 2 is provided on one side of the drying tower 1, the blower 2 is communicated with the heating box 3, the heating box 3 is communicated with the drying tower 1 through an air inlet pipe 4, the interior of the drying tower 1 is connected with an inner cylinder 8, a centrifugal atomizer 7 is installed at the center position of the top surface of the inner cylinder 8, the centrifugal atomizer 7 is connected to the raw material barrel through a liquid inlet pipe 6, an injection pipe 5 is installed around the centrifugal atomizer 7, the injection pipe 5 is communicated with the air inlet pipe 4, a scraper ring 11 for cleaning the inner wall of the inner cylinder 8 is installed inside the inner cylinder 8, an installation cavity is provided between the inner cylinder 8 and the inner wall of the drying tower 1, a driving mechanism for driving the scraper ring 11 to move is installed in the installation cavity, and a vibrating electric motor is installed on the outer wall of the bottom of the drying tower 1 Machine 18, the bottom end of the drying tower 1 is connected to a first discharge pipe 19, the side of the first discharge pipe 19 is connected to a discharge door, the first discharge pipe 19 is connected to a cyclone separator 20, the bottom end of the cyclone separator 20 is connected to a second discharge pipe 21, the cyclone separator 20 is connected to a bag dust collector 23 through a third discharge pipe 22, the bottom end of the bag dust collector 23 is provided with a fourth discharge pipe 24, the bag dust collector 23 is connected to the induced draft fan 25 through a fifth discharge pipe 26, and a discharge valve is installed on the second discharge pipe 21 and the fourth discharge pipe 24; specifically, the top of the inner tube 8 is connected to the top inner wall of the drying tower 1, and the bottom end of the inner tube 8 is connected to the side wall of the drying tower 1 through a connecting frame. If the dried powder enters the installation cavity, it can fall from the installation cavity to the conical hopper at the lower part of the drying tower 1 through the connecting frame.

[0025] The jet pipe 5 is configured as a spiral pipe, and a plurality of jet holes are provided on the jet pipe 5. Figure 5 、 6 , 7, the cross section of the jet pipe 5 is set to be circular, rectangular, or polygonal; by setting the spiral jet pipe 5, the hot air is evenly blown into the interior of the inner cylinder 8, and the hot air surrounds the centrifugal atomizer 7, so that the mist liquid sprayed by the centrifugal atomizer 7 is quickly dried.

[0026] like Figure 2As shown, the driving mechanism includes two screws 9, which are arranged in parallel. The top of the screw 9 is rotatably connected to the top surface of the drying tower 1 through a bearing. The top of the screw 9 extends above the drying tower 1. The bottom end of the screw 9 is rotatably connected to the connecting frame through a bearing. A screw seat 10 is threadedly connected to the screw 9. The two screw seats 10 pass through the through grooves on the side walls of the inner cylinder 8 and are connected to the scraper ring 11. One of the screws 9 is connected to the power assembly, and the two screws 9 are connected through a transmission assembly. The power assembly includes a motor 12, which is mounted on the top surface of the drying tower 1. A driving bevel gear 13 is mounted on the output shaft of the motor 12, and a driven bevel gear 14 meshing with the driving bevel gear 13 is mounted on one of the lead screws 9; the transmission assembly includes a driving sprocket 15, which is mounted on the lead screw 9 on which the driven bevel gear 14 is mounted, and a driven sprocket 16 is mounted on another lead screw 9. The driving sprocket 15 and the driven sprocket 16 are connected by a chain 17.

[0027] During operation, the motor 12 is started, and the motor 12 drives the active bevel gear 13 to rotate, and the active bevel gear 13 drives the driven bevel gear 14 to rotate, thereby driving one of the lead screws 9 to rotate, and the rotation of the lead screw 9 drives the active sprocket 15 at its top to rotate, and the active sprocket 15 drives the driven sprocket 16 to rotate through the chain 17, thereby driving the other lead screw 9 to rotate, so that the two lead screws 9 rotate synchronously, driving the scraper ring 11 to move upward or downward, thereby cleaning up the powder adhering to the inner wall of the inner cylinder 8; the vibration motor 18 works, and the powder adhering to the inner wall of the conical hopper at the lower part of the drying tower 1 falls off by vibration.

[0028] The working process of this utility model is as follows:

[0029] The blower 2 works, introducing air into the heating box 3 for heating. The hot air enters the jet pipe 5 through the air inlet pipe 4 and is ejected through the jet hole. The liquid raw material is pumped from the raw material barrel into the liquid inlet pipe 6 by the booster pump, and the mist liquid is ejected through the centrifugal atomizer 7. The mist liquid is quickly dried by the hot air, and the dried powder falls. The air mixed with the powder enters the cyclone separator 20 for separation. Part of the powder can be discharged through the second discharge pipe 21, and the air mixed with the powder enters the bag dust collector 23 through the third discharge pipe 22 for further separation. The powder is discharged through the fourth discharge pipe 24, and the air passes through the fifth discharge pipe 26 and is discharged by the induced draft fan 25.

[0030] After the induced draft fan 25 is turned off, the discharge door on the side of the first discharge pipe 19, the second discharge pipe 21, and the discharge valve at the bottom of the fourth discharge pipe 24 are opened to discharge the powder.

[0031] The blower, centrifugal atomizer, cyclone separator, bag dust collector, etc. involved in this embodiment are all existing technologies, and their specific structures and working methods are not described in detail here.

[0032] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A spray drying device for preparing multidimensional cell nutrition powder, characterized by: The invention comprises a drying tower (1), wherein a blower (2) is provided on one side of the drying tower (1), wherein the blower (2) is communicated with a heating box (3), wherein the heating box (3) is communicated with the drying tower (1) through an air inlet pipe (4), wherein an inner cylinder (8) is provided inside the drying tower (1), wherein a centrifugal atomizer (7) is provided at the center position of the top surface of the inner cylinder (8), wherein the centrifugal atomizer (7) is connected to a raw material barrel through a liquid inlet pipe (6), wherein an air injection pipe (5) is provided around the centrifugal atomizer (7), wherein the air injection pipe (5) is communicated with the air inlet pipe (4), wherein a scraper ring (11) for cleaning the inner wall of the inner cylinder (8) is provided inside the inner cylinder (8), wherein the inner cylinder (8) and the drying tower (1) are connected to each other. An installation cavity is provided between the inner walls of the drying tower (1), and a driving mechanism for driving the scraper ring (11) to move is provided in the installation cavity. A vibration motor (18) is provided on the outer wall of the bottom of the drying tower (1). A first discharge pipe (19) is provided at the bottom end of the drying tower (1), and the first discharge pipe (19) is connected to the cyclone separator (20). A second discharge pipe (21) is provided at the bottom end of the cyclone separator (20). The cyclone separator (20) is connected to the bag dust collector (23) through the third discharge pipe (22). A fourth discharge pipe (24) is provided at the bottom end of the bag dust collector (23), and the bag dust collector (23) is connected to the induced draft fan (25) through the fifth discharge pipe (26).

2. The spray drying device for preparing multidimensional cell nutrition powder according to claim 1, characterized in that: The air jet pipe (5) is configured as a spiral pipe, and a plurality of air jet holes are provided on the air jet pipe (5).

3. The spray drying device for preparing multidimensional cell nutrition powder according to claim 2, characterized in that: The cross section of the air injection pipe (5) is configured to be circular, rectangular, or polygonal.

4. The spray drying device for preparing multidimensional cell nutrition powder according to claim 1, characterized in that: The driving mechanism includes two lead screws (9), which are arranged in parallel. A lead screw seat (10) is threadedly connected to the lead screw (9). The two lead screw seats (10) pass through the through grooves on the side walls of the inner cylinder (8) and are connected to the scraper ring (11). One of the lead screws (9) is connected to the power component, and the two lead screws (9) are connected via a transmission component.

5. The spray drying device for preparing multidimensional cell nutrition powder according to claim 4, characterized in that: The power assembly comprises a motor (12), the motor (12) being mounted on the top surface of the drying tower (1), a driving bevel gear (13) being mounted on the output shaft of the motor (12), and a driven bevel gear (14) meshing with the driving bevel gear (13) being mounted on one of the lead screws (9).

6. The spray drying device for preparing multidimensional cell nutrition powder according to claim 5, characterized in that: The transmission assembly comprises a driving sprocket (15), the driving sprocket (15) being mounted on the lead screw (9) on which the driven bevel gear (14) is mounted, a driven sprocket (16) being mounted on another lead screw (9), and the driving sprocket (15) and the driven sprocket (16) being connected by a chain (17).

7. The spray drying device for preparing multidimensional cell nutrition powder according to claim 1, characterized in that: A discharge door is provided on the side of the first discharge pipe (19).

8. The spray drying device for preparing multidimensional cell nutrition powder according to claim 1, characterized in that: The second discharge pipe (21) and the fourth discharge pipe (24) are provided with discharge valves.

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