Chemical pharmaceutical drying device

Abstract

The utility model discloses a chemical pharmaceutical drying device, including auxiliary heating shell, the inside rotation of auxiliary heating shell is connected with drying cylinder, the inside installation of drying cylinder has airflow drying piece, the utility model relates to drying device technical field, this chemical pharmaceutical drying device, through the hot -blast machine, the air of outdoor is heated and is sent into the flow guide pipe, and the branch pipe of flow guide pipe connects the hot air stream and is divided into multiple air current and is ejected from the airflow shower nozzle, and the hot air stream of injection can improve the temperature in the drying cylinder, and the air current of injection can be further dried to the material that is thrown down by the copy board and is thrown down and gets the material, improves the drying speed of powder material, and, the air current of injection can clean the inner wall in the drying, prevents the damp powder from adhering on the inner wall of drying cylinder, and the hot air stream of injection can take away the water vapor that material evaporates rapidly, and greatly accelerates the drying rate of pharmaceutical powder.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a chemical and pharmaceutical drying equipment. Background Technology

[0002] Pharmaceutical manufacturing refers to the large-scale production of active pharmaceutical ingredients through chemical synthesis or semi-synthesis. In the final product form and formulation production stage of pharmaceutical manufacturing, materials are primarily in powder form. Many drugs generate moisture during production due to degradation reactions; the damp powder will clump, have poor flowability, and cannot be mixed uniformly. Therefore, pharmaceutical powders need to be dried. After drying, the material is in a dry granular or powdery state with good flowability, allowing for uniform mixing with other excipients and ensuring accurate dosage for each tablet or capsule. Simultaneously, drying pharmaceutical powders effectively inhibits microbial growth, ensuring the sterility or compliance with microbial limits of the drug. There are various types of drying equipment for pharmaceutical manufacturing, among which drum dryers are the most common. Drum dryers use internal heating to heat the drug raw materials inside the drum, causing the moisture in the powder to evaporate.

[0003] The inner wall of the drum dryer is equipped with lifting plates. As the drum rotates, the lifting plates lift the material at the bottom of the drum. When the lifting plates rotate to a certain height, the material will slide or be thrown down from the top, forming a sparse material curtain on the cross-section of the drum. This allows the material to fully contact the hot airflow inside the drum, thereby achieving the drying of powdered pharmaceutical materials. However, the drum dryer mainly relies on the heat conduction of the drum wall and the airflow passing through the material bed to heat the powdered medicine. The heat flow does not contact the material sufficiently. At the same time, the material near the drum wall is overheated, which can easily cause the moist pharmaceutical powder to clump together, resulting in a slow drying speed for the pharmaceutical powder.

[0004] Therefore, this utility model provides a chemical pharmaceutical drying device to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a chemical and pharmaceutical drying device that solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a chemical pharmaceutical drying device, including an auxiliary heating shell, a drying cylinder rotatably connected inside the auxiliary heating shell, a protective shell installed at the input end of the auxiliary heating shell, and a driving component installed between the drying cylinder and the protective shell; The drying cylinder is equipped with an airflow drying component, which includes a hot air blower fixedly connected to the outside of the protective shell. The output end of the hot air blower is fixedly connected to a guide pipe, the outside of the guide pipe is fixedly connected to a branch pipe, and the outside of the branch pipe is fixedly connected to an airflow nozzle. The drying cylinder is fixedly connected to a lifting plate; A dust removal device is installed at the output end of the auxiliary heating shell.

[0007] Preferably, there are five airflow nozzles, which are equidistantly distributed on the outside of the branch pipe.

[0008] Preferably, the top of the airflow nozzle is in the shape of an inverted funnel, and an air hole is provided on the outer side of the airflow nozzle, with an airflow mesh fixedly connected inside the air hole.

[0009] Preferably, the driving component includes a servo motor fixedly connected to the outside of the protective shell, a gear fixedly connected to the output end of the servo motor, and a gear ring A fixedly connected to one side of the drying cylinder, the gear meshing with the gear ring A.

[0010] Preferably, the dust removal component includes a connecting shell fixedly connected to the top of the auxiliary heating shell near the output end. A toothed ring B is rotatably connected inside the connecting shell, and a fan is fixedly connected to the outside of the toothed ring B. A toothed ring C is fixedly connected to the outside of the drying cylinder, and the toothed ring C and the toothed ring B mesh with each other. A bent pipe is fixedly connected to one side of the connecting shell, and an adsorption bucket is fixedly connected to the input end of the bent pipe. A dust removal bag is installed on the other side of the connecting shell. Beneficial effects

[0011] This invention provides a chemical and pharmaceutical drying device. Compared with the prior art, it has the following advantages: This chemical and pharmaceutical drying device heats outdoor air with a hot air blower and sends it into a guide pipe. At the same time, the branch pipe connected to the guide pipe divides the hot air into multiple streams that are sprayed out from the air nozzles. The sprayed hot air can increase the temperature inside the drying cylinder, and the sprayed air can further dry the material thrown down by the lifting plate, increasing the drying speed of the powder material. In addition, the sprayed air can clean the inner wall of the drying cylinder, preventing the damp powder from adhering to the inner wall of the drying cylinder. At the same time, the sprayed hot air can quickly carry away the water vapor evaporated from the material, greatly accelerating the drying rate of pharmaceutical powder. Attached Figure Description

[0012] Figure 1 This is a perspective view of the external structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the drying cylinder of this utility model; Figure 3 This is a schematic diagram of the airflow drying component of this utility model; Figure 4 This is the utility model Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5This is a schematic diagram of the connection structure between toothed ring B and toothed ring C of this utility model; Figure 6 This is a schematic diagram of the internal structure of the connecting shell of this utility model.

[0013] In the diagram: 1. Auxiliary heating shell; 2. Drying cylinder; 3. Protective shell; 4. Drive component; 401. Servo motor; 402. Gear; 403. Gear ring A; 5. Airflow drying component; 501. Hot air blower; 502. Guide pipe; 503. Branch pipe; 504. Airflow nozzle; 6. Lifting plate; 7. Dust removal component; 701. Connecting shell; 702. Gear ring B; 703. Fan; 704. Gear ring C; 705. Bend; 706. Adsorption hopper; 707. Dust collector bag. Detailed Implementation

[0014] 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. Example 1:

[0015] Please see Figure 1-4 A chemical pharmaceutical drying device includes an auxiliary heating shell 1, an electric heating device installed inside the auxiliary heating shell 1, a drying cylinder 2 rotatably connected inside the auxiliary heating shell 1, the auxiliary heating shell 1 and the drying cylinder 2 being connected, a protective shell 3 installed at the input end of the auxiliary heating shell 1, and a driving component 4 installed between the drying cylinder 2 and the protective shell 3. The drying cylinder 2 is equipped with an airflow drying component 5. The airflow drying component 5 includes a hot air blower 501 fixedly connected to the outside of the protective shell 3. The output end of the hot air blower 501 is fixedly connected to a guide pipe 502. There are four guide pipes 502. A branch pipe 503 is fixedly connected to the outside of the guide pipe 502. The branch pipe 503 is arc-shaped. An airflow nozzle 504 is fixedly connected to the outside of the branch pipe 503. The drying cylinder 2 is fixedly connected to a lifting plate 6. The lifting plate 6 is L-shaped and has a leakage hole on the outside. There are several lifting plates 6 arranged at equal intervals.

[0016] Five airflow nozzles 504 are provided, and the five airflow nozzles 504 are equidistantly distributed on the outside of the branch pipe 503.

[0017] The top of the airflow nozzle 504 is shaped like an inverted funnel, and an air hole is opened on the outside of the airflow nozzle 504. An airflow mesh is fixedly connected inside the air hole.

[0018] The driving component 4 includes a servo motor 401 fixedly connected to the outside of the protective shell 3. A gear 402 is fixedly connected to the output end of the servo motor 401. A gear ring A403 is fixedly connected to one side of the drying cylinder 2. The gear 402 and the gear ring A403 mesh with each other and are both installed inside the protective shell 3.

[0019] In this embodiment, the electric heating device inside the auxiliary heating shell 1 heats the drying cylinder 2, raising the temperature inside the drying cylinder 2. When drying powdered chemical drugs, the heat inside the drying cylinder 2 dries the moisture in the powder. During this process, the servo motor 401 drives the gear 402 connected to its output end to rotate inside the protective shell 3, thereby causing the drying cylinder 2 connected to the gear ring A403 to rotate inside the auxiliary heating shell 1. The rotating drying cylinder 2 drives the lifting plates 6 fixed on its inner wall to lift the material. As the lifting plates 6 tilt, the pharmaceutical powder is scattered inside the drying cylinder 2, allowing the pharmaceutical powder to fully contact the heat inside the drying cylinder 2, thereby evaporating the moisture in the pharmaceutical powder. During the scattering process, the hot air blower 501 filters and heats the outside air, and then transports it to the branch pipes 503 through the guide pipes 502. Multiple branch pipes 503 and Multiple airflow nozzles 504 installed on the outside disperse the hot airflow into multiple jets. While increasing the heat inside the drying cylinder 2, the hot airflow directly penetrates the downward-sprayed pharmaceutical powder, thereby reheating the powder and increasing its drying rate. Simultaneously, the hot airflow accelerates the flow rate of water vapor inside the drying cylinder 2, greatly improving the drying effect. The funnel-shaped airflow nozzles 504 at the top prevent clumping or damp powder from falling into the nozzles' vents, thus avoiding blockage. The airflow mesh within the vents disperses the hot airflow, increasing its spray range and further enhancing the drying effect of the downward-sprayed pharmaceutical powder. The intermittently rotating drying cylinder 2 conveys the dried powder to the output position. Furthermore, the perforated lifting plate 6 improves the efficiency of powder spraying, further enhancing the drying effect. Example 2:

[0020] Please see Figure 1-6 This embodiment provides a technical solution for a chemical and pharmaceutical drying device based on Embodiment 1: A dust removal component 7 is installed at the output end of the auxiliary heating shell 1. The dust removal component 7 includes a connecting shell 701 fixedly connected to the top of the auxiliary heating shell 1 near the output end. A toothed ring B702 is rotatably connected inside the connecting shell 701. A fan 703 is fixedly connected to the outside of the toothed ring B702. A toothed ring C704 is fixedly connected to the outside of the drying cylinder 2. The toothed ring C704 is installed inside the drying cylinder 2 and meshes with the toothed ring B702. A bent pipe 705 is fixedly connected to one side of the connecting shell 701. An adsorption bucket 706 is fixedly connected to the input end of the bent pipe 705. A dust removal bag 707 is installed on the other side of the connecting shell 701.

[0021] In this embodiment, the gas ejected from the airflow nozzle 504 and the rotating drying cylinder 2 generate a large amount of drug dust at the output end. This drug dust can impact the environment, but it also has recycling value. During the rotation of the drying cylinder 2, its outer toothed ring C704 drives the toothed ring B702 inside the connecting shell 701 to rotate. The rotating toothed ring B702 drives the fan 703 to rotate. By controlling the rotation direction of the drying cylinder 2, the fan 703 rotates in the opposite direction. The rotating fan 703 assists in heating part of the gas at the output end of the auxiliary heating shell 1. The airflow circulates, thereby discharging part of the dust-laden airflow from the bend 705 into the dust collector bag 707 installed on the outside of the connecting shell 701. After the sucked-in dust enters the dust collector bag 707, the dust is separated from the airflow, reducing the escape of dust at the output end of the auxiliary heating shell 1, thereby reducing the impact of the escaped dust on the environment. The dust collector bag 707 is periodically removed from the outside of the connecting shell 701 to recover the medicine powder collected inside the dust collector bag 707, which protects the environment, reduces the waste of pharmaceutical powder, and facilitates the cleaning of the dust collector bag 707.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] Working principle: Before drying the pharmaceutical powder, the electric heating equipment inside the auxiliary heating shell 1 is first started. Simultaneously, the servo motor 401 and hot air blower 501 on the outside of the protective shell 3 are started. The servo motor 401 drives the gear 402 to rotate inside the protective shell 3. The rotating gear 402 drives the drying cylinder 2 connected to the gear ring A403 to rotate inside the auxiliary heating shell 1. The rotating drying cylinder 2 heats the cylinder wall evenly and increases the internal temperature of the drying cylinder 2. Meanwhile, the hot air blower 501 filters and heats the outside air, then delivers the hot airflow from the guide pipe 502 to the branch pipes 503. Multiple branch pipes 503 disperse the hot airflow into multiple streams that are sprayed out from the airflow nozzles 504. The sprayed hot airflow further increases the internal temperature and airflow velocity of the drying cylinder 2. After the drying cylinder 2 is preheated, the pharmaceutical powder is poured in from the feeding device outside the protective shell 3. The pharmaceutical powder enters the drying cylinder 2, and the rotating drying cylinder 2 causes the lifting plates 6 fixed on its inner wall to repeatedly lift the pharmaceutical powder. As the lifting plates 6 tilt, the pharmaceutical powder... The hot airflow generated by the airflow nozzle 504, along with the inclined lifting plate 6 and the drain hole at its bottom, penetrates the sprayed pharmaceutical powder, further removing moisture from the powder and improving the drying efficiency. Simultaneously, the hot airflow moves water vapor towards the output ends of the auxiliary heating shell 1 and the drying cylinder 2. As the drying cylinder 2 rotates inside the protective shell 3, the toothed ring C704 on the outside of the drying cylinder 2 drives the toothed ring B702 to rotate inside the connecting shell 701. The rotation direction of the drying cylinder 2 can be controlled to control the fan 703 to rotate in the opposite direction inside the connecting shell 701. The rotation of the fan 703 assists in the flow of airflow at the output end of the auxiliary heating shell 1, thereby drawing some of the dust-laden airflow from the bend pipe 705 into the dust collector bag 707. The dust collector bag 707 separates the powder from the airflow. The dust collector bag 707 can be periodically removed from the outside of the connecting shell 701, and the powder inside can be recovered, preventing dust pollution from the powder and reducing waste of pharmaceutical powder.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] 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 chemical pharmaceutical drying device, comprising an auxiliary heating shell (1), characterized in that: The auxiliary heating shell (1) is rotatably connected to the drying cylinder (2), and a protective shell (3) is installed at the input end of the auxiliary heating shell (1). A driving component (4) is installed between the drying cylinder (2) and the protective shell (3). The drying cylinder (2) is equipped with an airflow drying component (5). The airflow drying component (5) includes a hot air blower (501) fixedly connected to the outside of the protective shell (3). The output end of the hot air blower (501) is fixedly connected to a guide pipe (502). The outside of the guide pipe (502) is fixedly connected to a branch pipe (503). The outside of the branch pipe (503) is fixedly connected to an airflow nozzle (504). The drying cylinder (2) is fixedly connected to a lifting plate (6); A dust removal component (7) is installed at the output end of the auxiliary heating shell (1).

2. The chemical and pharmaceutical drying device according to claim 1, characterized in that: Five airflow nozzles (504) are provided, and the five airflow nozzles (504) are equidistantly distributed on the outside of the branch pipe (503).

3. The chemical and pharmaceutical drying apparatus according to claim 1, characterized in that: The top of the airflow nozzle (504) is in the shape of an inverted funnel, and an air hole is provided on the outer side of the airflow nozzle (504). An airflow mesh is fixedly connected inside the air hole.

4. The chemical and pharmaceutical drying apparatus according to claim 1, characterized in that: The driving component (4) includes a servo motor (401) fixedly connected to the outside of the protective shell (3). A gear (402) is fixedly connected to the output end of the servo motor (401). A gear ring A (403) is fixedly connected to one side of the drying cylinder (2). The gear (402) meshes with the gear ring A (403).

5. A chemical pharmaceutical drying device according to claim 1, characterized in that: The dust removal component (7) includes a connecting shell (701) fixedly connected to the top of the auxiliary heating shell (1) near the output end. A toothed ring B (702) is rotatably connected inside the connecting shell (701). A fan (703) is fixedly connected to the outside of the toothed ring B (702). A toothed ring C (704) is fixedly connected to the outside of the drying cylinder (2). The toothed ring C (704) and the toothed ring B (702) mesh with each other. A bent pipe (705) is fixedly connected to one side of the connecting shell (701). An adsorption bucket (706) is fixedly connected to the input end of the bent pipe (705). A dust removal bag (707) is installed on the other side of the connecting shell (701).

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