Spray dryer with high medicinal powder yield

Abstract

The invention relates to the technical field of mechanical equipment, in particular to a spray dryer with high medicinal powder yield, which comprises a reaction tank, a treatment assembly is arranged in the reaction tank, the treatment assembly comprises a fixed disc, the fixed disc is fixedly connected in the reaction tank, and a plurality of through holes are formed in the fixed disc. The through holes are distributed in the fixing disc in an annular array mode, an annular groove is formed in the fixing disc, and a movable screening net is movably connected into the annular groove. According to the spray dryer with the high medicinal powder yield, water in feed liquid can be rapidly evaporated, more batches of drying operation can be completed in unit time, the production efficiency is improved, the large-scale production requirement is met, the time needed by the whole process from feeding to powder discharging is short, the production cycle of products can be effectively shortened, degradation and deterioration of medicinal components are reduced, and the production cost is reduced. The purity, activity and stability of the medicine powder are ensured, and the curative effect and safety of the medicine are improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a spray dryer with a high powder production rate. Background Art

[0002] A spray dryer is a drying equipment that uses atomization technology to convert liquid materials into solid powder or particles. Common spray dryers are divided into centrifugal spray dryers, pressure spray dryers and airflow spray dryers. According to the shape of the drying chamber, they are divided into tower spray dryers and horizontal spray dryers. According to the operating pressure, they are classified into atmospheric pressure spray dryers and vacuum spray dryers.

[0003] During the feeding process, if the material has high viscosity or contains large particles, it is easy to get clogged in the feeding pipeline, affecting continuous production and even damaging the equipment. At the same time, if the feeding speed is too fast, the drying is insufficient and the product moisture content is high. If the feeding is too slow, the production efficiency is low. Impurities, crystals or sticky substances in the material are easy to accumulate at the nozzle, making the spray uneven, affecting the particle size and production rate of the powder, and may also cause local overheating and damage the equipment. For this reason, we proposed a spray dryer with a high powder production rate. Summary of the invention

[0004] The purpose of the present invention is to provide a spray dryer with a high powder yield, so as to solve the problems mentioned in the above background technology that during the feeding process, the material has high viscosity or contains large particles, which is easy to be blocked in the feeding pipeline, affecting continuous production and even damaging the equipment. At the same time, if the feeding speed is too fast, the drying is insufficient, the moisture content of the product is high, and if the feeding is too slow, the production efficiency is low. Impurities, crystals or sticky substances in the material are easy to accumulate at the nozzle, making the spray uneven, affecting the particle size and yield of the powder, and may also cause local overheating and damage the equipment. To achieve the above purpose, the present invention provides the following technical solutions: A spray dryer with a high powder yield, comprising a reaction tank, wherein a processing component is arranged inside the reaction tank, wherein the processing component comprises a fixed disk, wherein the fixed disk is fixedly connected to the inside of the reaction tank, wherein a plurality of through holes are opened inside the fixed disk, wherein the through holes are distributed in an annular array inside the fixed disk, wherein an annular groove is opened inside the fixed disk, wherein a movable screening net is movably connected inside the annular groove, wherein a plurality of filter holes are opened on the top of the movable screening net, wherein the filter holes are distributed in an annular array on the top of the movable screening net, wherein the top of the movable screening net is fixedly connected to A limiting baffle is connected, a plurality of vibration springs are fixedly connected inside the annular groove, the vibration springs are distributed in an annular array inside the annular groove, a movable screening net is fixedly connected to the top of the vibration spring, and a vibration motor is fixedly connected inside the movable screening net, which can quickly evaporate the water in the liquid feed, complete more batches of drying operations within a unit time, improve production efficiency, meet large-scale production needs, and the entire process from feeding to powder output takes a short time, which can effectively shorten the production cycle of the product, reduce the degradation and deterioration of drug ingredients, ensure the purity, activity and stability of drug powder, and improve the efficacy and safety of drugs.

[0005] Further preferably, a connecting frame is fixedly connected to the side surface of the reaction tank, a fixing frame is fixedly connected to the side surface of the connecting frame, a plurality of connecting frames are fixedly connected to the bottom of the fixing frame, and a plurality of supporting legs are fixedly connected to the bottom of the connecting frame.

[0006] Further preferably, the supporting legs are distributed in a circular array at the bottom of the connecting frame, the bottom of the reaction tank is fixedly connected to a funnel, a discharge hole is opened at the bottom of the funnel, a collecting box is fixedly connected to the bottom of the discharge hole, and the side surface of the funnel is fixedly connected to a connecting pipe.

[0007] Further preferably, the other end of the connecting pipe is fixedly connected to a rotary air separator, the bottom of the rotary air separator is fixedly connected to a separation port, the top of the reaction tank is fixedly connected to an atomizing nozzle, and the top of the reaction tank is provided with a drying component.

[0008] Further preferably, the drying component includes a cover plate, which is fixedly connected to the top of the reaction tank, and the interior of the cover plate is fixedly connected to a ventilation pipe, and the side surface of the ventilation pipe is fixedly connected to a sealing ring, and the sealing ring is fixedly connected to the top of the cover plate.

[0009] Further preferably, the other end of the ventilation pipe is fixedly connected to an air inlet, the other end of the ventilation pipe is fixedly connected to a sealing tank, and the interior of the sealing tank is fixedly connected to a resistance wire.

[0010] Further preferably, a connecting ring is fixedly connected to the side surface of the sealed can, a guardrail is fixedly connected to the top of the connecting ring, and a connecting plate is fixedly connected to the bottom of the sealed can.

[0011] Further preferably, a hair dryer is fixedly connected to the interior of the connecting plate, and a plurality of support rods are fixedly connected to the bottom of the connecting ring, and the support rods are distributed in a ring array at the bottom of the connecting ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the water in the feed liquid can be evaporated quickly, more batches of drying operations can be completed within a unit time, the production efficiency can be improved, and the needs of large-scale production can be met. The entire process from feeding to powder output takes a short time, which can effectively shorten the production cycle of the product, reduce the degradation and deterioration of the drug ingredients, ensure the purity, activity and stability of the drug powder, and improve the efficacy and safety of the drug.

[0013] In the present invention, the drug powder can have a more uniform particle size distribution and better fluidity and solubility, which is beneficial to subsequent preparation processing, such as tableting, capsule filling, etc., improves the production quality and consistency of the drug, increases the utilization rate of raw materials, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional main structure of the present invention; Figure 2 The cross-sectional three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention from a side view; Figure 5 The cross-sectional three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 6 For the present invention Figure 5 Enlarged structural diagram at B in the middle.

[0015] In the figure: 1. reaction tank; 2. fixing frame; 3. connecting frame; 4. supporting leg; 5. processing component; 6. funnel; 7. discharge hole; 8. collecting box; 9. connecting pipe; 10. rotary air separator; 11. separation port; 12. drying component; 13. atomizing nozzle; 501. fixing plate; 502. through hole; 503. annular groove; 504. movable screening net; 505. filter hole; 506. limit baffle; 507. vibration spring; 508. vibration motor; 1201. cover plate; 1202. ventilation pipe; 1203. sealing ring; 1204. air inlet; 1205. sealing tank; 1206. resistance wire; 1207. connecting ring; 1208. guardrail; 1209. connecting plate; 1210. hair dryer; 1211. supporting rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 6The present invention provides a technical solution: a spray dryer with a high powder production rate, comprising a reaction tank 1, a processing component 5 is arranged inside the reaction tank 1, the processing component 5 comprises a fixed plate 501, the fixed plate 501 is fixedly connected to the inside of the reaction tank 1, a plurality of through holes 502 are opened inside the fixed plate 501, the through holes 502 are distributed in an annular array inside the fixed plate 501, an annular groove 503 is opened inside the fixed plate 501, a movable screening net 504 is movably connected inside the annular groove 503, and a plurality of through holes 502 are opened on the top of the movable screening net 504. The filter holes 505 are arranged in an annular array on the top of the movable screening net 504. The top of the movable screening net 504 is fixedly connected to a limited baffle 506. A plurality of vibration springs 507 are fixedly connected to the inside of the annular groove 503. The vibration springs 507 are arranged in an annular array inside the annular groove 503. The top of the inside of the vibration springs 507 is fixedly connected to the movable screening net 504. The inside of the movable screening net 504 is fixedly connected to a vibration motor 508. The air enters the sealed tank 1205 in the drying component 12 through the hair dryer 1210 to ensure that the air enters the sealed tank 1205. The air entering the dryer is clean, and then the resistance wire 1206 is started to heat the air to the set temperature. The heated hot air enters the ventilation pipe 1202 on the top of the dryer, so that the hot air enters the reaction tank 1 in a spiral shape and is uniformly fed into the reaction tank 1. At the same time, the liquid medicine is atomized through the atomizing nozzle 13, and the liquid medicine is transported to the liquid distributor in the high-speed rotating centrifugal atomizer, so that the liquid medicine is evenly fed to the high-speed rotating atomizing disk. Under the centrifugal force generated by the high-speed rotation of the atomizing disk, the liquid medicine stretches into a thin film on the surface of the atomizing disk, and quickly moves to the edge of the atomizing disk, and is finally thrown out at a high speed, forming a thin film. The atomized medicine liquid is fully contacted and mixed by hot air, and the water in the medicine liquid evaporates rapidly, and the medicine liquid is dried into medicine powder. After drying, the medicine powder is screened by the processing component 5, and the movable screening net 504 is driven to vibrate by the vibration motor 508, so as to complete the full drying of the medicine. The fully dried medicine powder is discharged through the filter hole 505 and finally collected by the collection box 8.

[0018] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the side surface of the reaction tank 1 is fixedly connected with a connecting frame 3, the side surface of the connecting frame 3 is fixedly connected with a fixing frame 2, the bottom of the fixing frame 2 is fixedly connected with a plurality of connecting frames 3, the bottom of the connecting frame 3 is fixedly connected with a plurality of supporting legs 4, the supporting legs 4 are distributed in a circular array at the bottom of the connecting frame 3, the bottom of the reaction tank 1 is fixedly connected with a funnel 6, the bottom of the funnel 6 is provided with a discharge hole 7, the bottom of the discharge hole 7 is fixedly connected with a collecting box 8, the side surface of the funnel 6 is fixedly connected with a connecting pipe 9, the other end of the connecting pipe 9 is fixedly connected with a rotary air separator 10, the bottom of the rotary air separator 10 is fixedly connected with a separation port 11, the top of the reaction tank 1 is fixedly connected with an atomizing nozzle 13, and the top of the reaction tank 1 is provided with a drying component 12.

[0019] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the drying assembly 12 includes a cover plate 1201, which is fixedly connected to the top of the reaction tank 1, and the interior of the cover plate 1201 is fixedly connected to a ventilation pipe 1202, and the side surface of the ventilation pipe 1202 is fixedly connected to a sealing ring 1203, and the sealing ring 1203 is fixedly connected to the top of the cover plate 1201. The other end of the ventilation pipe 1202 is fixedly connected to an air inlet 1204, and the other end of the ventilation pipe 1202 is fixedly connected to a sealing tank 1205. The sealing tank 120 5 is fixedly connected with a resistance wire 1206, a connecting ring 1207 is fixedly connected to the side surface of the sealing tank 1205, a guardrail 1208 is fixedly connected to the top of the connecting ring 1207, a connecting plate 1209 is fixedly connected to the bottom of the sealing tank 1205, a hair dryer 1210 is fixedly connected to the inside of the connecting plate 1209, a plurality of support rods 1211 are fixedly connected to the bottom of the connecting ring 1207, and the support rods 1211 are distributed in a circular array at the bottom of the connecting ring 1207.

[0020] The use method and advantages of the present invention: The spray dryer with high powder production rate, when in use, has the following working process: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when the spray dryer with a high powder production rate is used, first, air enters the sealed tank 1205 in the drying component 12 through the hair dryer 1210 to ensure that the air entering the dryer is clean, and then the resistance wire 1206 is started to heat the air to a set temperature. The heated hot air enters the ventilation pipe 1202 on the top of the dryer, so that the hot air enters the reaction tank 1 in a spiral shape and uniformly. At the same time, the drug liquid is atomized through the atomizing nozzle 13, and the drug liquid is transported to the liquid distributor in the high-speed rotating centrifugal atomizer, so that the drug liquid is evenly sent to the high-speed rotating atomizing disk. Under the action of the centrifugal force generated by the high-speed rotation of the atomizing disk, the drug liquid is The surface stretches into a thin film and moves quickly toward the edge of the atomizing disk, and is finally thrown out at high speed to form a thin film, filaments or droplets. Due to the friction, obstruction, tearing and other effects of the air, the droplets are further refined, and after being thrown from the disk along the spiral line, they are dispersed into very small droplets. At the same time, the atomized liquid medicine is fully contacted and mixed by hot air, and the water in the liquid medicine evaporates rapidly, and the liquid medicine is dried into powder. After drying, the powder is screened by the processing component 5, and the movable screening net 504 is driven to vibrate by the vibration motor 508, so as to complete the full drying of the medicine. The fully dried powder is discharged through the filter hole 505 and finally collected by the collection box 8.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A spray dryer with a high powder production rate, comprising a reaction tank (1), characterized in that: A processing assembly (5) is arranged inside the reaction tank (1), and the processing assembly (5) comprises a fixed plate (501), the fixed plate (501) is fixedly connected to the inside of the reaction tank (1), a plurality of through holes (502) are provided inside the fixed plate (501), the through holes (502) are distributed in a circular array inside the fixed plate (501), an annular groove (503) is provided inside the fixed plate (501), a movable screening net (504) is movably connected inside the annular groove (503), and a top of the movable screening net (504) is provided. A plurality of filter holes (505) are provided, the filter holes (505) are distributed in an annular array on the top of the movable screening net (504), a limit baffle (506) is fixedly connected to the top of the movable screening net (504), a plurality of vibration springs (507) are fixedly connected inside the annular groove (503), the vibration springs (507) are distributed in an annular array inside the annular groove (503), the top of the inside of the vibration springs (507) is fixedly connected to the movable screening net (504), and a vibration motor (508) is fixedly connected inside the movable screening net (504).

2. A spray dryer with high powder production rate according to claim 1, characterized in that: The side surface of the reaction tank (1) is fixedly connected to a connecting frame (3), the side surface of the connecting frame (3) is fixedly connected to a fixing frame (2), the bottom of the fixing frame (2) is fixedly connected to a plurality of connecting frames (3), and the bottom of the connecting frame (3) is fixedly connected to a plurality of supporting legs (4).

3. A spray dryer with high powder production rate according to claim 2, characterized in that: The support legs (4) are distributed in a circular array at the bottom of the connecting frame (3); the bottom of the reaction tank (1) is fixedly connected to a funnel (6); a discharge hole (7) is provided at the bottom of the funnel (6); a collecting box (8) is fixedly connected to the bottom of the discharge hole (7); and a connecting pipe (9) is fixedly connected to the side surface of the funnel (6).

4. A spray dryer with a high powder production rate according to claim 3, characterized in that: The other end of the connecting pipe (9) is fixedly connected to a rotary air separator (10), the bottom of the rotary air separator (10) is fixedly connected to a separation port (11), the top of the reaction tank (1) is fixedly connected to an atomizing nozzle (13), and the top of the reaction tank (1) is provided with a drying component (12).

5. A spray dryer with a high powder production rate according to claim 4, characterized in that: The drying component (12) comprises a cover plate (1201), wherein the cover plate (1201) is fixedly connected to the top of the reaction tank (1), the interior of the cover plate (1201) is fixedly connected to a ventilation pipe (1202), a side surface of the ventilation pipe (1202) is fixedly connected to a sealing ring (1203), and the sealing ring (1203) is fixedly connected to the top of the cover plate (1201).

6. A spray dryer with a high powder production rate according to claim 5, characterized in that: The other end of the ventilation pipe (1202) is fixedly connected to an air inlet (1204), the other end of the ventilation pipe (1202) is fixedly connected to a sealing tank (1205), and the interior of the sealing tank (1205) is fixedly connected to a resistance wire (1206).

7. A spray dryer with a high powder production rate according to claim 5, characterized in that: A connecting ring (1207) is fixedly connected to the side surface of the sealed tank (1205), a guardrail (1208) is fixedly connected to the top of the connecting ring (1207), and a connecting plate (1209) is fixedly connected to the bottom of the sealed tank (1205).

8. The spray dryer with high powder production rate according to claim 5, characterized in that: A hair dryer (1210) is fixedly connected to the interior of the connecting plate (1209), and a plurality of support rods (1211) are fixedly connected to the bottom of the connecting ring (1207), wherein the support rods (1211) are distributed in a ring array at the bottom of the connecting ring (1207).

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