Anti-caking spray-drying tower for perfumes

Abstract

The utility model belongs to the field of drying tower especially, is a kind of spice spray drying tower of anti-caking, in view of the resistance of existing spice, only rely on wind power driving sweep device rotation power is small, also difficult to form the complete cleaning problem of spice adhered in drying tower inner wall, present and propose the following scheme, including support frame, drying tower is fixedly installed in the support frame, drying tower bottom is equipped with unloading pipe;Two air injection pipes are vertically arranged in the two sides of drying tower inner chamber, the side of air injection pipe is equipped with inclined air hole array, the side close to air injection pipe of its fixedly connected with arc-shaped scraper, the outer edge of scraper is in contact with drying tower inner wall;Driving assembly, in the utility model, through mechanical, airflow synergistic effect, intelligent transmission control and structure optimization design, systematically solve the technical problems such as caking, wall sticking in spray drying process, there is remarkable technical progress and industrial application value in the field of spice processing.

Description

Technical Field

[0001] This utility model relates to the field of drying tower technology, and in particular to a fragrance spray drying tower with anti-caking properties. Background Technology

[0002] Spray drying towers are key equipment in the fragrance processing industry. Their core function is to transform liquid fragrances into powder form through efficient atomization and hot air drying technology, while maximizing the retention of aroma components and optimizing product performance.

[0003] A search revealed a compressed air purging device for a spray drying tower, with publication number CN209013712U, comprising a cylindrical drying tower.

[0004] The drying tower still has some shortcomings in actual use:

[0005] When the purging device inside the drying tower is in use, the air force generated by the purging holes drives the purging device to rotate. However, although the purging device can purify, the fragrance has resistance, and the power to drive the purging device to rotate by air force alone is small. At the same time, it is difficult to thoroughly clean the fragrance that is stuck to the inner wall of the drying tower. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where fragrances have resistance, the power to drive the purging device to rotate is relatively small, and it is difficult to thoroughly clean the fragrances adhering to the inner wall of the drying tower. Therefore, this invention proposes an anti-caking fragrance spray drying tower.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A fragrance spray drying tower for preventing caking, comprising:

[0009] A support frame, in which a drying tower is fixedly installed, and a discharge pipe is provided at the bottom of the drying tower;

[0010] Two jet pipes are vertically installed on both sides of the inner cavity of the drying tower. One side of each jet pipe is provided with an array of inclined air holes, and an arc-shaped scraper is fixed to the side of the jet pipe near the side of the air pipe. The outer edge of the scraper is in contact with the inner wall of the drying tower.

[0011] The drive assembly includes a drive motor fixed to the top of the drying tower and meshing gears, the gears being driven to rotate around the tower body axis by a jet pipe.

[0012] The crushing mechanism includes a rotating shaft and multiple crushing blades fixed to its outer wall. The rotating shaft is linked to the jet pipe via a bevel gear.

[0013] When the jet pipe rotates, it scrapes off the material adhering to the tower wall with a scraper, while the bevel gear drives the crushing blades to crush the clumps of material falling into the unloading pipe.

[0014] In one possible design, the driving component further includes:

[0015] Mounting bracket, fixed to the top of the drying tower;

[0016] The connecting plate is rotatably connected to the mounting bracket via a bearing, and a three-way pipe is fixedly connected to its bottom. The two air outlets of the three-way pipe are respectively connected to two air jet pipes.

[0017] The output shaft of the drive motor is fixedly connected to the outer wall of the connecting disc with meshing gears to form a reduction transmission mechanism.

[0018] One possible design also includes:

[0019] A connecting ring is rotatably fitted onto the top of the connecting plate, and its top is connected to the air outlet of the fan.

[0020] An embedded ring is fixed to the top of the connecting disc and inserted into the embedded groove at the bottom of the connecting ring to form an annular sealing structure.

[0021] In one possible design, the crushing mechanism further includes: a crossbar, both ends of which are fixedly connected to the bottom of two jet pipes via connecting rods; a connecting frame, which is rotatably mounted on the crossbar and the outer wall of the rotating shaft via a bearing assembly; wherein, the bottom end of the crossbar and the outer wall of the rotating shaft are respectively fixedly connected to mutually perpendicular meshing bevel gears, with a transmission ratio ranging from 1:3 to 1:5.

[0022] In one possible design, the breaker blades are stainless steel blades with serrated edges on both sides, welded equidistantly to the outer wall of the rotating shaft, with the installation angles of adjacent breaker blades differing by 45°-60°.

[0023] In one possible design, the axis of the inclined vent array forms an angle of 30°-45° with the normal to the tower wall, and the vent spacing decreases along the length of the jet pipe with a decreasing gradient of 5%-10%.

[0024] In one possible design, a conical shroud is also included, symmetrically fixed to both sides of the axial direction of the crusher blade, with a cone angle of 60°-75° and a gap of 2-3 mm between the outer edge of the conical shroud and the inner wall of the bottom tube.

[0025] In this application, the material enters the centrifugal atomizer through the feed pipe, where it is atomized into a fine mist. The mist then comes into full contact with hot air from the hot air distributor for drying. The dried material is discharged through the discharge pipe. During the drying process, the fan is powered on via a control switch, blowing air into the drying tower and cleaning its inner wall. Simultaneously, the drive motor is activated, and its output shaft drives two meshing gears to rotate. One gear drives a connecting disc to rotate, which engages with a connecting ring and is further sealed by an insert ring inserted into an insert groove. The connecting disc drives a three-way pipe to rotate, which in turn drives two air jets on either side to rotate. Scrapers on the opposite side of the air jets further scrape and clean the inner wall of the drying tower, causing the material to fall into the bottom pipe. As the air jets rotate, the connecting rod and crossbar drive two meshing bevel gears to rotate. One bevel gear drives a rotating shaft to rotate, which, through multiple breaking blades on the outer wall of the rotating shaft, breaks up any clumps of fragrance.

[0026] Beneficial effects: In this utility model, the anti-caking fragrance spray drying tower has a scraper on one side of the jet pipe that is designed to fit against the tower wall. During the centrifugal spray drying process, it continuously scrapes off the material attached to the inner wall to prevent local material accumulation and hardening. The crushing blade is linked with the jet pipe through two meshing bevel gears to perform secondary crushing on the falling caking material to ensure uniform particle size of the output.

[0027] In this utility model, the anti-caking fragrance spray drying tower achieves precise power distribution through gears and bevel gears: the drive motor drives the dual function of linkage between the jet pipe and the crushing blade; the two bevel gears adopt an interlocking meshing design to ensure that the scraper speed and the crushing blade speed form the best matching ratio, effectively reducing the agglomeration rate and crushing effect;

[0028] This invention systematically solves technical problems such as agglomeration and wall adhesion in the spray drying process through the synergistic effect of mechanics and airflow, intelligent transmission control, and structural optimization design. It has significant technological progress and industrial application value in the field of fragrance processing. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a fragrance spray drying tower for preventing caking proposed in this utility model;

[0030] Figure 2 This is a cross-sectional structural diagram of a fragrance spray drying tower for preventing caking proposed in this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of a fragrance spray drying tower fan for preventing caking, as proposed in this utility model.

[0032] Figure 4This is a cross-sectional exploded view of the connecting ring and connecting plate of a fragrance spray drying tower for preventing caking, as proposed in this utility model.

[0033] Figure 5 This is a cross-sectional structural diagram of a fragrance spray drying tower connecting frame for preventing caking, as proposed in this utility model.

[0034] In the diagram: 1. Drying tower; 2. Support frame; 3. Discharge pipe; 4. Fan; 5. Drive motor; 6. Jet pipe; 7. Connecting rod; 8. Crossbar; 9. Rotating shaft; 10. Gear; 11. Connecting ring; 12. T-pipe; 13. Connecting disc; 14. Embedded groove; 15. Embedded ring; 16. Crushing blade; 17. Connecting frame; 18. Bevel gear; 19. Bottom pipe. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] Example 1: Refer to Figure 1 A fragrance spray drying tower with anti-caking properties is described. Material enters a centrifugal atomizer through a feed pipe, where it is atomized at high speed into tiny droplets. These droplets come into full contact with high-temperature hot air supplied by a hot air distributor within the drying tower 1, causing rapid evaporation of moisture and completing the drying process. The dried material is discharged through a discharge pipe 3. A support frame 2 is fixed to the ground, and the drying tower 1 is vertically installed in the center of the support frame 2, with its bottom sealed to the discharge pipe 3 via a flange.

[0037] Reference Figures 2 to 4 A mounting frame is welded to the top of the drying tower 1, and a fan 4 is fixed to the top of the mounting frame. The outlet end of the fan 4 is connected to the connecting ring 11. The connecting ring 11 is rotatably sleeved on the top of the connecting plate 13, and a three-way pipe 12 is welded to the bottom of the connecting plate 13. The two outlet ends of the three-way pipe 12 are connected to the inlet ends of two jet pipes 6 respectively through high-temperature resistant hoses. The jet pipes 6 are horizontally distributed on both sides of the inner cavity of the drying tower 1, with multiple rows of inclined air holes on one side. The airflow is sprayed obliquely to the tower wall surface at an angle of 30°-45°. An arc-shaped scraper made of polytetrafluoroethylene is welded to the side of the jet pipe 6 closest to the tower wall, and the outer edge of the scraper maintains a 0.5-1mm gap contact with the inner wall of the drying tower 1.

[0038] Reference Figure 2 and Figure 3The drive motor 5 is bolted to the top of the mounting frame, and the output shaft of the drive motor 5 passes through the top of the mounting frame and is fitted with a gear 10. Another gear 10 is coaxially mounted on the outer edge of the connecting plate 13. The two gears 10 have a module of 2 and a gear ratio of 1:3, forming a reduction transmission. When the drive motor 5 starts, it drives the connecting plate 13 to rotate at a speed of 10-15 rpm through the meshing of the gear 10, which in turn drives the three-way pipe 12 and the jet pipe 6 to rotate synchronously. During the rotation of the jet pipe 6, the scraper continuously scrapes the inner wall of the drying tower 1 to peel off the attached material, while the air jet from the vents assists in removing residual powder.

[0039] Reference Figure 2 and Figure 5 A connecting rod 7 is welded to the bottom of the jet pipe 6, and a crossbar 8 is welded between the two connecting rods 7. The bottom end of the crossbar 8 extends into the interior of the bottom pipe 19 and is fitted with a bevel gear 18. A rotating shaft 9 is installed inside the bottom pipe 19, and another bevel gear 18 is installed at a corresponding position on its outer wall. The axes of the two bevel gears 18 are staggered at 90°, and the meshing depth of the teeth is 40%-50% of the tooth height. 6-8 sets of breaker blades 16 are welded equidistantly to the outer wall of the rotating shaft 9. Each set of breaker blades 16 consists of two symmetrically distributed 304 stainless steel blades with serrated edges and a cutting angle of 60°. A connecting frame 17 is provided around the breaker blades 16. The connecting frame 17 has embedded bearings fitted into the outer wall of the crossbar 8 and the rotating shaft 9 to restrict axial displacement.

[0040] Reference Figures 2 to 5 When the jet pipe 6 rotates, it drives the bevel gear 18 to mesh with the crossbar 8 via the connecting rod 7, causing the rotating shaft 9 to rotate in the opposite direction at a speed of 50-60 rpm. The crushing blade 16 shears and crushes the agglomerated material falling into the bottom pipe 19, and the particle size of the crushed material is controlled within the range of 80-100 mesh. The connecting disc 13 has an embedded ring 15 welded to the top, and the bottom of the connecting ring 11 has an annular embedded groove 14 with a depth of 8 mm. When the two are joined together, they form a labyrinth-type sealing structure to prevent airflow leakage.

[0041] Example 2: Reference Figure 5 An improvement based on Example 1: The conical covers located on both sides of the crushing blade 16 can effectively prevent the crushed material from piling up through their conical surfaces.

[0042] However, as is well known to those skilled in the art, the working principles and wiring methods of the fan 4 and the drive motor 5 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0043] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fragrance spray drying tower for preventing caking, characterized in that, include: A support frame (2) is provided, and a drying tower (1) is fixedly installed inside the support frame (2). The bottom of the drying tower (1) is provided with a discharge pipe (3). Two jet pipes (6) are vertically arranged on both sides of the inner cavity of the drying tower (1). An inclined air hole array is provided on one side of the jet pipe (6), and an arc-shaped scraper is fixed to the side of the jet pipe (6). The outer edge of the scraper is in contact with the inner wall of the drying tower (1). The drive assembly includes a drive motor (5) fixed to the top of the drying tower (1) and meshing gears (10), which are connected to the jet pipe (6) to drive it to rotate around the tower axis. The crushing mechanism includes a rotating shaft (9) and multiple crushing blades (16) fixed to its outer wall. The rotating shaft (9) is linked to the jet pipe (6) through a bevel gear (18). When the jet pipe (6) rotates, it scrapes off the material attached to the tower wall by the scraper, while the bevel gear (18) drives the crushing blade (16) to crush the clump material that falls into the unloading pipe (3).

2. The fragrance spray drying tower according to claim 1, characterized in that, The driving component also includes: Mounting bracket, fixed to the top of drying tower (1); The connecting plate (13) is rotatably connected to the mounting frame via a bearing, and a three-way pipe (12) is fixedly connected to its bottom. The two air outlets of the three-way pipe (12) are respectively connected to two jet pipes (6); The output shaft of the drive motor (5) is fixedly connected to the outer wall of the connecting disc (13) with meshing gears (10) to form a speed reduction transmission mechanism.

3. The fragrance spray drying tower according to claim 2, characterized in that, Also includes: The connecting ring (11) is rotatably sleeved on the top of the connecting plate (13), and its top is connected to the air outlet of the fan (4); An embedded ring (15) is fixed to the top of the connecting plate (13) and inserted into the embedded groove (14) at the bottom of the connecting ring (11) to form an annular sealing structure.

4. The fragrance spray drying tower according to claim 1, characterized in that, The crushing mechanism also includes: The crossbar (8) is fixed at both ends to the bottom of the two jet pipes (6) via connecting rods (7); The connecting frame (17) is rotatably mounted on the outer wall of the crossbar (8) and the rotating shaft (9) via a bearing assembly; Among them, the bottom end of the crossbar (8) and the outer wall of the rotating shaft (9) are respectively fixed with bevel gears (18) that mesh perpendicularly with each other, and the transmission ratio range is 1:3 to 1:

5.

5. The fragrance spray drying tower according to claim 4, characterized in that, The crushing blade (16) is a stainless steel blade with serrated edges on both sides, which is welded at equal intervals to the outer wall of the rotating shaft (9). The installation angles of adjacent crushing blades (16) differ by 45°-60°.

6. The fragrance spray drying tower according to claim 1, characterized in that, The axis of the inclined vent array is at an angle of 30°-45° to the normal of the tower wall, and the spacing between the vents decreases along the length of the jet pipe (6) with a decreasing gradient of 5%-10%.

7. The fragrance spray drying tower according to claim 1 or 6, characterized in that, It also includes a conical cover, which is symmetrically fixed to both sides of the axial direction of the broken blade (16), with a cone angle of 60°-75° and a gap of 2-3mm between the outer edge of the conical cover and the inner wall of the bottom tube (19).

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