Veterinary medicine powder drying device

Abstract

The utility model provides a kind of veterinary medicine powder drying device, it is related to veterinary medicine processing equipment technical field, including drying cylinder, two baffles are fixedly installed in drying cylinder, two baffles divide the upper end inside drying cylinder into atomization drying area, secondary drying area and exhaust area, the spray end of atomizer is inserted into atomization drying area, atomization drying area is communicated with hot air conveying pipe, collecting box and screen are fixedly installed on the inner wall of drying cylinder, collecting box is set to the lower end of screen, the outside of drying cylinder is fixedly installed with bunker, bunker is communicated with second negative pressure fan and secondary drying area, there is crushed material conveying pipe between bunker and collecting box, the utility model separates agglomerate by screen, and crushed material component breaks agglomerate, then agglomerate is sent back drying cylinder to secondary drying, solve the problem that strong hygroscopic veterinary medicine powder is not completely dried.

Description

Technical Field

[0001] This utility model relates to the field of veterinary drug processing equipment technology, and in particular to a veterinary drug powder drying device. Background Technology

[0002] In the production of veterinary drugs, a spray dryer is needed to dry the veterinary drug solution into veterinary drug powder. During drying, the veterinary drug solution is atomized by an atomizer and sprayed into the drying cylinder. At the same time, hot air enters the drying cylinder to dry the atomized veterinary drug liquid. The water in the veterinary drug liquid evaporates due to the heat, thus obtaining veterinary drug powder. The veterinary drug powder falls to the bottom of the drying cylinder. However, for highly hygroscopic veterinary drug powder, it is easy to absorb moisture from the air during the falling process and stick to the nearby veterinary drug powder to form clumps, resulting in incomplete drying and clumping of the veterinary drug powder.

[0003] Therefore, a veterinary drug powder drying device is needed to solve the above problems. Utility Model Content

[0004] This invention proposes a veterinary drug powder drying device, which separates clumps through a screen, breaks up the clumps through a crushing component, and then sends the clumps back into the drying cylinder for secondary drying, thus solving the problem of incomplete drying of highly hygroscopic veterinary drug powders.

[0005] The technical solution of this utility model is implemented as follows: A veterinary drug powder drying device includes a drying cylinder. Two vertically arranged baffles are fixedly installed inside the drying cylinder, dividing the upper part of the cylinder into an atomization drying zone, a secondary drying zone, and an exhaust zone. A discharge port is located at the bottom of the drying cylinder. An atomizer is fixedly installed at the top of the drying cylinder. The inlet end of the atomizer is connected to a veterinary drug solution delivery pipe, and the spray end of the atomizer extends into the atomization drying zone, which is connected to a hot air delivery pipe. A collection box and an inclined screen are fixedly installed on the inner wall of the drying cylinder, with the collection box located below the screen. A hopper is fixedly installed on the outer side of the drying cylinder, and the hopper is connected to a second negative pressure fan and the secondary drying zone. A fragmentation delivery pipe is provided between the hopper and the collection box, and a fragmentation assembly is installed inside the fragmentation delivery pipe.

[0006] As a preferred technical solution, the feed end of the crushed material conveying pipe extends horizontally into the collection box, and the crushing assembly includes a plurality of crushing material baffles staggered on the inner wall of the crushing material conveying pipe, forming a feeding channel between the plurality of crushing material baffles.

[0007] As a preferred technical solution, the lower end of the screen and the collection box are both located below the exhaust zone. The collection box is connected to the exhaust zone through a circulating filter pipe and a first negative pressure fan. The air inlet of the circulating filter pipe is provided with a first filter element. The exhaust end of the circulating filter pipe extends horizontally into the collection box. The exhaust end of the circulating filter pipe is arranged opposite to the feed end of the crushed material conveying pipe.

[0008] As a preferred technical solution, the top of the drying cylinder is provided with a hot air chamber, which is connected to the hot air conveying pipe and the atomizing drying zone.

[0009] As a preferred technical solution, the top of the silo is provided with an exhaust pipe, the lower end of the exhaust pipe is connected to the inside of the silo through a second filter element, the upper end of the exhaust pipe is connected to the outside air through a second negative pressure fan, and the lower end of the silo is connected to the secondary drying zone through a discharge pipe.

[0010] By adopting the above technical solution, the beneficial effects of this utility model are as follows: Since the veterinary drug powder drying device includes a screen and a collection box, the atomizer atomizes the veterinary drug solution into small droplets and sprays the droplets into the atomization drying zone. Under the action of gravity, the droplets move towards the bottom of the drying cylinder. At the same time, hot air enters the drying cylinder through the hot air conveying pipe. The hot air evaporates the moisture in the droplets, forming veterinary drug powder. The veterinary drug powder falls to the discharge port after passing through the screen, thus realizing the drying of the veterinary drug powder.

[0011] However, highly hygroscopic veterinary drug powders will absorb moisture from the air and adhere to nearby powders, forming clumps. These clumps are then sieved and guided to a collection box. Under the action of a circulating filter pipe and a first negative pressure fan, air from the drying drum is pumped into the collection box. Simultaneously, a negative pressure is created in the hopper of the second negative pressure fan chamber. Therefore, under the pushing action of the air blown out by the circulating filter pipe and the negative pressure in the hopper, the clumps are pushed through the crushing pipe into the hopper and, under gravity, return to the drying drum for secondary drying. This solves the problem of incomplete drying of highly hygroscopic veterinary drug powders. After secondary drying, the powder falls through the sieve to the discharge port, while the clumps re-enter the collection box for further crushing and drying, ensuring the veterinary drug is thoroughly dried into powder.

[0012] Because the veterinary drug powder drying device includes a crushing conveying pipe, the veterinary drug powder in the air passes through the first filter element, and the air in the drying cylinder is introduced into the collection box by the second negative pressure fan, thus forming an airflow that pushes the clumped veterinary drugs toward the crushing conveying pipe, assisting the clumped veterinary drugs to enter the crushing conveying pipe. The heat in the airflow plays a certain role in drying the clumped veterinary drugs. Compared with the existing spray dryer that directly discharges the air in the drying cylinder, this device realizes the reuse of the waste heat of the air.

[0013] Since the veterinary drug powder drying device includes a crushing conveyor pipe, after the clumped veterinary drugs enter the crushing conveyor pipe, they collide with the crushing baffle, thereby breaking the veterinary drug powder into pieces, which is beneficial for thoroughly drying the highly hygroscopic veterinary drug powder during the secondary drying process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] The components include: 1. Drying cylinder; 2. Baffle; 3. Atomizing drying zone; 4. Secondary drying zone; 5. Exhaust zone; 6. Discharge port; 7. Atomizer; 8. Veterinary drug solution conveying pipe; 9. Hot air conveying pipe; 10. Collection box; 11. Screen; 12. Circulating filter pipe; 13. First negative pressure fan; 14. Material hopper; 15. Second negative pressure fan; 16. Crushed material conveying pipe; 17. Crushed material baffle; 18. Feeding channel; 19. First filter element; 20. Hot air chamber; 21. Exhaust pipe; 22. Second filter element; 23. Discharge pipe; 24. Butterfly valve. Detailed Implementation

[0017] 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.

[0018] like Figure 1As shown, the veterinary drug powder drying device includes a drying cylinder 1. Two vertically arranged baffles 2 are fixedly installed inside the drying cylinder 1, dividing the upper part of the drying cylinder 1 into an atomizing drying zone 3, a secondary drying zone 4, and an exhaust zone 5. A discharge port 6 is provided at the bottom of the drying cylinder 1, and an atomizer 7 is fixedly installed at the top of the drying cylinder 1. The liquid inlet end of the atomizer 7 is connected to a veterinary drug solution delivery pipe 8, and the spray end of the atomizer 7 extends into the atomizing drying zone 3, which is connected to a hot air delivery pipe. 9. A collection box 10 and an inclined screen 11 are fixedly installed on the inner wall of the drying cylinder 1. The collection box 10 is located at the lower end of the screen 11. A hopper 14 is fixedly installed on the outer side of the drying cylinder 1. The hopper 14 is connected to the second negative pressure fan 15 and the secondary drying zone 4. A crushed material conveying pipe 16 is provided between the hopper 14 and the collection box 10. A crushed material assembly is provided inside the crushed material conveying pipe 16. The atomizer 7 adopts the QJ-5 electric high-speed centrifugal atomizer from Changzhou Qianjiang Drying Equipment Engineering Co., Ltd.

[0019] By setting two baffles 2, the upper part of the drying cylinder 1 is divided into an atomizing drying zone 3, a secondary drying zone 4, and an exhaust zone 5. The atomizer 7 and the hot air conveying pipe 9 are connected to the atomizing drying zone 3, the hopper 14 is connected to the secondary drying zone 4, and the circulating filter pipe 12 is connected to the exhaust zone 5. This isolates the circulating filter pipe 12, preventing the atomized dried veterinary drug powder and the veterinary drug powder discharged from the hopper 14 from being affected by the second negative pressure fan 15. This allows the atomized dried veterinary drug powder and the veterinary drug powder discharged from the hopper 14 to fall smoothly and be filtered through the screen 11 to the discharge port 6.

[0020] The feed end of the crushing conveying pipe 16 extends horizontally into the collection box 10. The crushing assembly includes several crushing baffles 17 that are staggered on the inner wall of the crushing conveying pipe 16, and a feeding channel 18 is formed between the several crushing baffles 17.

[0021] The lower end of the screen 11 and the collection box 10 are both located below the exhaust zone 5. The collection box 10 is connected to the exhaust zone 5 through the circulating filter pipe 12 and the first negative pressure fan 13. The air inlet end of the circulating filter pipe 12 is provided with a first filter element 19. The exhaust end of the circulating filter pipe 12 extends horizontally into the collection box 10. The exhaust end of the circulating filter pipe 12 is set opposite to the feed end of the crushed material conveying pipe 16.

[0022] The top of the drying cylinder 1 is provided with a hot air chamber 20, which is connected to the hot air conveying pipe 9 and the atomizing drying zone 3. The hot air conveying pipe 9 is connected to an air heater, which is not shown in the figure. The air heater provides hot air to the inside of the drying cylinder 1. The air heater is a DY-FD model air duct heater from Yancheng Daoyuan Machinery Equipment Co., Ltd.

[0023] The top of the silo 14 is equipped with an exhaust pipe 21. The lower end of the exhaust pipe 21 is connected to the inside of the silo 14 through the second filter element 22. The upper end of the exhaust pipe 21 is connected to the outside air through the second negative pressure fan 15. The lower end of the silo 14 is connected to the secondary drying zone 4 through the discharge pipe 23. The second filter element 22 filters the veterinary drug powder in the air. The second negative pressure fan 15 creates a negative pressure inside the silo 14. The negative pressure causes the clumps of veterinary drugs in the collection box 10 to enter the crushed material conveying pipe 16 and be conveyed into the silo 14.

[0024] The veterinary drug solution delivery pipe 8 is connected to the veterinary drug solution tank via a pump. The veterinary drug solution tank contains veterinary drug solution. Neither the pump nor the veterinary drug solution tank is shown in the figure. A butterfly valve 24 is installed at the discharge port 6.

[0025] In summary, this invention solves the problem of incomplete drying of highly hygroscopic veterinary drug powders by separating clumps with a screen, breaking up clumps with a crushing component, and then sending the clumps back to the drying cylinder for secondary drying.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A veterinary drug powder drying device, comprising a drying cylinder, characterized in that, Two vertically arranged baffles are fixedly installed inside the drying cylinder, dividing the upper part of the drying cylinder into an atomizing drying zone, a secondary drying zone, and an exhaust zone. A discharge port is provided at the bottom of the drying cylinder, and an atomizer is fixedly installed at the top of the drying cylinder. The liquid inlet of the atomizer is connected to a veterinary drug solution delivery pipe, and the spray end of the atomizer extends into the atomizing drying zone, which is connected to a hot air delivery pipe. A collection box and an inclined screen are fixedly installed on the inner wall of the drying cylinder, with the collection box located at the lower end of the screen. A hopper is fixedly installed on the outer side of the drying cylinder, and the hopper is connected to a second negative pressure fan and the secondary drying zone. A crushed material delivery pipe is provided between the hopper and the collection box, and a crushed material assembly is provided inside the crushed material delivery pipe.

2. The veterinary drug powder drying device according to claim 1, characterized in that, The feed end of the crushed material conveying pipe extends horizontally into the collection box. The crushing assembly includes several crushing baffles that are staggered on the inner wall of the crushing material conveying pipe, and a feeding channel is formed between the several crushing baffles.

3. The veterinary drug powder drying device according to claim 2, characterized in that, The lower end of the screen and the collection box are both located below the exhaust zone. The collection box is connected to the exhaust zone through a circulating filter pipe and a first negative pressure fan. The air inlet of the circulating filter pipe is provided with a first filter element. The exhaust end of the circulating filter pipe extends horizontally into the collection box. The exhaust end of the circulating filter pipe is opposite to the feed end of the crushed material conveying pipe.

4. The veterinary drug powder drying device according to claim 1, characterized in that, The top of the drying cylinder is provided with a hot air chamber, which is connected to the hot air conveying pipe and the atomizing drying zone.

5. The veterinary drug powder drying apparatus according to any one of claims 1-4, characterized in that, The top of the silo is equipped with an exhaust pipe. The lower end of the exhaust pipe is connected to the inside of the silo through a second filter element. The upper end of the exhaust pipe is connected to the outside air through a second negative pressure fan. The lower end of the silo is connected to the secondary drying zone through a discharge pipe.

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