Spray drying tail gas treatment device

Abstract

The utility model relates to the technical field of medicinal material processing, and discloses a spray drying tail gas treatment device which comprises a filtering barrel and a ventilation pipe communicated with the right side of the outer surface of the filtering barrel, a top cover is arranged on the upper surface of the filtering barrel, an air inlet pipe is communicated with the lower surface of the filtering barrel, and a gear ring is rotationally connected with the outer surface of the air inlet pipe. And the right side of the lower surface of the filtering barrel is vertically and rotatably connected with a gear engaged with the gear ring by inserting a rotating shaft. According to the spray drying tail gas treatment device, a primary filter element, a gear, a gear ring and a brush are matched for use, so that tail gas enters a filter barrel through the primary filter element, a driving motor drives the gear to rotate through a rotating shaft, the gear drives the gear ring and the primary filter element to rotate, and the brush cleans dust on the inner wall of a paper filter cylinder; therefore, the condition that the primary filter element is blocked by dust is avoided, the smoothness of dry tail gas emission is improved, the frequency of replacing the filter element by workers is reduced, and the production efficiency of the spray dryer is improved.

Description

A spray drying exhaust gas treatment device Technical Field

[0001] This utility model relates to the field of medicinal material processing technology, specifically to a spray drying exhaust gas treatment device. Background Technology

[0002] The spray dryer for traditional Chinese medicine extracts is a drying machine developed by absorbing foreign technology. It is suitable for drying traditional Chinese medicine products with low melting point and high sugar content. It has the characteristics of non-sticking to the wall, non-caramelization of materials, and non-hygroscopicity. The successful development of this device has solved the technical difficulty that many traditional Chinese medicine products with low melting point and high sugar content cannot be spray dried for many years. It is also a new development in the application technology research of spray drying in traditional Chinese medicine manufacturing.

[0003] The high-speed centrifugal spray drying device for traditional Chinese medicine extracts is an application of centrifugal spray drying technology in the drying of specific materials. It utilizes a high-speed centrifugal atomizer to disperse the material into fine particles, allowing it to fully contact with hot air for instantaneous drying and forming a powdery finished product. This drying equipment is specifically designed for spray drying traditional Chinese medicine extracts and plant extracts. However, during the operation of the spray dryer, a large amount of exhaust gas is generated, containing a significant amount of residual powder. This exhaust gas needs to be filtered before being released to the outside. Typical exhaust gas treatment devices usually consist of a filter screen and filter cotton. While this filtration structure has a high filtration efficiency, prolonged high-intensity use can easily cause blockage of the exhaust gas filtration system, requiring frequent cleaning of the filter elements by staff. This not only places a heavy workload on the staff but also affects the production efficiency of the spray dryer. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a spray drying exhaust gas treatment device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spray drying exhaust gas treatment device, comprising a filter barrel and a ventilation pipe connected to the right side of the outer surface of the filter barrel. A top cover is provided on the upper surface of the filter barrel, and an air inlet pipe is connected to the lower surface of the filter barrel. A gear ring is rotatably connected to the outer surface of the air inlet pipe. A gear meshing with the gear ring is vertically rotatably connected to the right side of the lower surface of the filter barrel via an insert rotating shaft. A motor bracket is fixedly connected to the right side of the lower surface of the filter barrel, and a drive motor is fixedly connected to the inner wall of the motor bracket. The output end of the drive motor is fixedly connected to the rotating shaft. A primary filter element is provided between the gear ring and the top cover. A brush is provided on the inner side of the primary filter element. Brush fixing blocks are fixedly connected to the inner walls of both the air inlet pipe and the top cover. A fixing sleeve is connected to the right side of the ventilation pipe, and a disassembly ring is threadedly connected to the inner wall of the fixing sleeve. A secondary filter element is provided on the inner wall of the disassembly ring.

[0008] Preferably, the primary filter element includes a paper filter cartridge and mounting rings fixed on the upper and lower surfaces of the paper filter cartridge. Four sets of mating blocks are fixedly connected to the lower surface of the mounting ring at the bottom, and the upper surface of the toothed ring is provided with mating grooves that are adapted to the mating blocks.

[0009] Preferably, four sets of fixing bolts are inserted into the upper surface of the top cover, and three sets of fixing blocks are fixedly connected to the top of the outer surface of the filter barrel, with the fixing bolts and fixing blocks being threadedly connected.

[0010] Preferably, a T-shaped insert is fixedly connected to the right side of the brush, and a T-shaped slot adapted to the T-shaped insert is provided on the left side of the brush fixing block.

[0011] Preferably, four sets of outer blocks are fixedly connected to the right side of the inner wall of the disassembly ring, and four sets of inner blocks are fixedly connected to the left side of the inner wall of the fixing sleeve. The secondary filter element is located between the inner blocks and the outer blocks. The secondary filter element includes a filter element frame and a sponge filter element disposed inside the filter element frame.

[0012] Preferably, an installation plate is fixedly connected to the outer surface of the air inlet pipe, and installation bolts are inserted into the four corners of the left side of the installation plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a spray drying exhaust gas treatment device, which has the following beneficial effects:

[0015] 1. This spray drying exhaust gas treatment device uses a primary filter element, gears, gear rings, and brushes in combination. The exhaust gas enters the filter barrel through the primary filter element. The drive motor drives the gears to rotate via the rotating shaft. The gears drive the gear rings and the primary filter element to rotate. The brushes clean the dust on the inner wall of the paper filter barrel, thereby preventing dust from clogging the primary filter element, improving the smoothness of the drying exhaust gas emission, reducing the frequency of filter element replacement by the staff, and improving the production efficiency of the spray dryer.

[0016] 2. This spray drying exhaust gas treatment device, through the coordinated use of a top cover, fixing bolts, docking groove, docking block, T-shaped slot, and T-shaped insert, allows the operator to remove the fixing bolts and open the top cover when the primary filter element needs to be replaced. This releases the top cover from its fixation to the primary filter element, and the brush fixing block at the top releases its fixation to the T-shaped insert. The brush blocking the primary filter element is then removed, allowing for easy replacement of the primary filter element. This further simplifies the primary filter element replacement process and makes it more convenient for operators.

[0017] 3. This spray drying exhaust gas treatment device uses a fixed sleeve, a disassembly ring, and a secondary filter element in conjunction. The sponge filter element inside the secondary filter element performs secondary filtration of fine dust particles. When the secondary filter element needs to be replaced, simply rotate and remove the disassembly ring to replace it. This further improves the filtration quality of the spray drying exhaust gas. The secondary filter element is easy to replace without stopping the equipment, making it convenient for operators. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of this utility model;

[0019] Figures 2, 3, 4, and 5 are schematic diagrams showing the unfolded structure of this utility model.

[0020] In the diagram: 1. Filter canister; 2. Ventilation duct; 3. Top cover; 4. Air inlet duct; 5. Gear ring; 501. Connecting groove; 6. Rotating shaft; 7. Gear; 8. Motor bracket; 9. Drive motor; 10. Primary filter element; 1001. Paper filter cartridge; 1002. Mounting ring; 1003. Connecting block; 11. Brush; 1101. T-shaped insert; 12. Brush fixing block; 1201. T-shaped slot; 13. Fixing sleeve; 1301. Inner stop block; 14. Disassembly ring; 1401. Outer stop block; 15. Secondary filter element; 1501. Filter element holder; 1502. Sponge filter element; 16. Fixing bolt; 17. Fixing block; 18. Mounting plate; 19. Mounting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5. This utility model provides a technical solution: a spray drying exhaust gas treatment device, including a filter barrel 1 and a ventilation pipe 2 connected to the right side of the outer surface of the filter barrel 1. A top cover 3 is provided on the upper surface of the filter barrel 1, and an air inlet pipe 4 is connected to the lower surface of the filter barrel 1. A gear ring 5 is rotatably connected to the outer surface of the air inlet pipe 4. A gear 7 that meshes with the gear ring 5 is vertically rotatably connected to the right side of the lower surface of the filter barrel 1 via an insert rotating shaft 6. A motor bracket 8 is fixedly connected to the right side of the lower surface of the filter barrel 1. A drive motor 9 is fixedly connected to the inner wall of the motor bracket 8. The output end of the drive motor 9 is fixedly connected to the rotating shaft 6. The gear ring 5 and the top cover 3... A primary filter element 10 is installed between the air inlet pipe 4 and the inner wall of the top cover 3. A brush 11 is installed inside the primary filter element 10. Brush fixing blocks 12 are fixedly connected to the inner walls of the air inlet pipe 4 and the top cover 3. A fixing sleeve 13 is connected to the right side of the ventilation pipe 2. A disassembly ring 14 is threadedly connected to the inner wall of the fixing sleeve 13. A secondary filter element 15 is installed on the inner wall of the disassembly ring 14. Through the cooperation of the primary filter element 10, gear 7, gear ring 5 and brush 11, the exhaust gas enters the filter cartridge 1 through the primary filter element 10. The drive motor 9 drives the gear 7 to rotate through the rotating shaft 6. The gear 7 drives the gear ring 5 and the primary filter element 10 to rotate. The brush 11 removes dust from the inner wall of the paper filter cartridge 1001. Cleaning is performed to prevent dust from clogging the primary filter element 10, improving the smoothness of the drying exhaust gas emission, reducing the frequency of filter element replacement by operators, and increasing the production efficiency of the spray dryer. The top cover 3, fixing bolts 16, docking groove 501, docking block 1003, T-shaped slot 1201, and T-shaped insert 1101 work together to allow operators to remove the fixing bolts 16 and open the top cover 3 when the primary filter element 10 needs to be replaced. The top cover 3 is then released from its fixation to the top of the primary filter element 10, and the brush fixing block 12 at the top is released from its fixation to the T-shaped insert 1101, allowing the filter element to be removed. The brush 11 blocks the primary filter element 10, thus facilitating its replacement and making it easier for operators to use. The fixing sleeve 13, the removal ring 14, and the secondary filter element 15 work together to allow the sponge filter element 1502 inside the secondary filter element 15 to perform secondary filtration of fine dust particles. When the secondary filter element 15 needs to be replaced, simply rotate and remove the removal ring 14 to replace it. This further improves the filtration quality of the spray drying exhaust gas. The secondary filter element is easy to replace without stopping the equipment, making it convenient for operators.

[0023] In this invention, in order to enable the primary filter element 10 to rotate with the gear ring 5, the primary filter element 10 includes a paper filter cylinder 1001 and a mounting ring 1002 fixed on the upper and lower surfaces of the paper filter cylinder 1001. The lower surface of the mounting ring 1002 at the bottom is fixedly connected with four sets of docking blocks 1003. The upper surface of the gear ring 5 is provided with docking grooves 501 that are adapted to the docking blocks 1003, so that the docking blocks 1003 on the primary filter element 10 are inserted into the docking grooves 501 on the gear ring 5, thereby realizing the synchronous rotation of the primary filter element 10 and the gear ring 5.

[0024] In this utility model, in order to further facilitate the disassembly of the top cover 3, four sets of fixing bolts 16 are inserted on the upper surface of the top cover 3, and three sets of fixing blocks 17 are fixedly connected to the top of the outer surface of the filter bucket 1. The fixing bolts 16 are threadedly connected to the fixing blocks 17, so that the workers can disassemble the top cover 3 by removing the fixing bolts 16.

[0025] In this utility model, in order to further facilitate the replacement of the primary filter element 10, a T-shaped insert 1101 is fixedly connected to the right side of the brush 11, and a T-shaped slot 1201 adapted to the T-shaped insert 1101 is opened on the left side of the brush fixing block 12, so that the operator can first remove the brush 11 that is blocking the primary filter element 10 and then remove the primary filter element 10, thereby further facilitating the replacement of the primary filter element 10.

[0026] In this invention, to further enhance the stability of the placement of the secondary filter element 15, four sets of outer blocks 1401 are fixedly connected to the right side of the inner wall of the disassembly ring 14, and four sets of inner blocks 1301 are fixedly connected to the left side of the inner wall of the fixing sleeve 13. The secondary filter element 15 is located between the inner blocks 1301 and the outer blocks 1401. The secondary filter element 15 includes a filter element frame 1501 and a sponge filter element 1502 disposed inside the filter element frame 1501. This allows the outer blocks 1401 and the inner blocks 1301 to limit the placement of the secondary filter element 15, thereby further enhancing the stability of the placement of the secondary filter element 15.

[0027] In this utility model, in order to further facilitate the installation of the device, a mounting plate 18 is fixedly connected to the outer surface of the air inlet pipe 4. Mounting bolts 19 are inserted into the four corners of the left side of the mounting plate 18, so that the operator can install the device at the exhaust port of the spray drying equipment through the mounting bolts 19, which further facilitates the installation of the device.

[0028] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0029] In use, the device is inserted from the inside to the outside of the exhaust port of the spray dryer. It is then fixed to the exhaust port using mounting bolts 19. The filter cartridge 1 is located inside the dryer, and the right side of the ventilation pipe 2 is located outside the dryer. The air pressure inside the dryer is high. The exhaust gas passes through the primary filter element 10 and enters the filter cartridge 1. Then, the exhaust gas passes through the secondary filter element 15 and exits from the right side of the ventilation pipe 2. During the exhaust gas discharge process, the paper filter cartridge 1001 blocks most of the dust outside the device, and the sponge filter element 1502 filters out any remaining fine dust. The drive motor 9 is then started. 9. The rotating shaft 6 drives the gear 7 to rotate, and the gear 7 drives the gear ring 5 and the first-stage filter element 10 to rotate. The brush 11 cleans the dust on the inner wall of the paper filter cartridge 1001. When the first-stage filter element 10 needs to be replaced, the fixing bolt 16 can be removed, and the top cover 3 can be opened and removed. The top cover 3 is released from fixing the top of the first-stage filter element 10. The brush fixing block 12 located at the top is released from fixing the T-shaped insert 1101. The brush 11 blocking the first-stage filter element 10 can be removed, and then the first-stage filter element 10 can be replaced. When the second-stage filter element 15 needs to be replaced, the disassembly ring 14 can be rotated and removed to replace the second-stage filter element 15.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray drying exhaust gas treatment device, comprising a filter barrel (1) and a ventilation pipe (2) connected to the right side of the outer surface of the filter barrel (1), characterized in that: The filter barrel (1) has a top cover (3) on its upper surface. An air inlet pipe (4) is connected to the lower surface of the filter barrel (1). A gear ring (5) is rotatably connected to the outer surface of the air inlet pipe (4). A gear (7) meshing with the gear ring (5) is vertically rotatably connected to the right side of the lower surface of the filter barrel (1) via an insert rotating shaft (6). A motor bracket (8) is fixedly connected to the right side of the lower surface of the filter barrel (1). A drive motor (9) is fixedly connected to the inner wall of the motor bracket (8). The output end is fixedly connected to the rotating shaft (6). A primary filter element (10) is provided between the gear ring (5) and the top cover (3). A brush (11) is provided on the inner side of the primary filter element (10). A brush fixing block (12) is fixedly connected to the inner wall of the air inlet pipe (4) and the top cover (3). A fixing sleeve (13) is connected to the right side of the ventilation pipe (2). A disassembly ring (14) is threadedly connected to the inner wall of the fixing sleeve (13). A secondary filter element (15) is provided on the inner wall of the disassembly ring (14).

2. The spray drying exhaust gas treatment device according to claim 1, characterized in that: The primary filter element (10) includes a paper filter cartridge (1001) and a mounting ring (1002) fixed on the upper and lower surfaces of the paper filter cartridge (1001). The mounting ring (1002) at the bottom is fixedly connected to four sets of docking blocks (1003). The upper surface of the toothed ring (5) is provided with docking grooves (501) that are adapted to the docking blocks (1003).

3. A spray-drying exhaust treatment apparatus according to claim 1, wherein: Four sets of fixing bolts (16) are inserted on the upper surface of the top cover (3), and three sets of fixing blocks (17) are fixedly connected to the top of the outer surface of the filter bucket (1). The fixing bolts (16) and the fixing blocks (17) are threadedly connected.

4. The spray drying exhaust gas treatment device according to claim 1, characterized in that: The right side of the brush (11) is fixedly connected to a T-shaped insert (1101), and the left side of the brush fixing block (12) is provided with a T-shaped slot (1201) that is compatible with the T-shaped insert (1101).

5. The spray drying exhaust gas treatment device according to claim 1, characterized in that: Four sets of outer blocks (1401) are fixedly connected to the right side of the inner wall of the disassembly ring (14), and four sets of inner blocks (1301) are fixedly connected to the left side of the inner wall of the fixing sleeve (13). The secondary filter element (15) is located between the inner blocks (1301) and the outer blocks (1401). The secondary filter element (15) includes a filter element frame (1501) and a sponge filter element (1502) disposed inside the filter element frame (1501).

6. The spray drying exhaust gas treatment device according to claim 1, characterized in that: The outer surface of the air inlet pipe (4) is fixedly connected to a mounting plate (18), and mounting bolts (19) are inserted into the four corners of the left side of the mounting plate (18).

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