Hot air circulating oven for producing hydrotalcite chewable tablets
By designing a hot air circulating oven, the problems of uneven hot air distribution and moisture accumulation in traditional drying equipment are solved, enabling uniform drying and efficient production of aluminum magnesium carbonate chewable tablets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG JIUHE PHARM CO LTD
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional drying equipment suffers from uneven hot air distribution, resulting in inconsistent drying of magnesium aluminum carbonate chewable tablets, which affects product quality and easily generates moisture, reducing drying efficiency.
The oven adopts a hot air circulation design, including a housing, centrifugal fan, connecting air ducts, and rotating drying parts. It distributes hot air evenly through exhaust, dispersion, and rotation, and uses moisture-absorbing materials to treat moisture.
This method achieves uniform drying of magnesium aluminum carbonate chewable tablets, improving drying efficiency and product quality, avoiding localized overheating or overcooling, while the moisture-absorbing material handles moisture, ensuring product stability.
Smart Images

Figure CN224162889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot air circulating oven technology, specifically a hot air circulating oven for the production of aluminum magnesium carbonate chewable tablets. Background Technology
[0002] Aluminum magnesium carbonate chewable tablets are an over-the-counter antacid and gastric mucosa protectant, primarily used to relieve symptoms caused by excessive stomach acid and protect the gastric mucosa. In the production process of aluminum magnesium carbonate chewable tablets, the drying process is crucial, directly affecting the product's quality and stability.
[0003] Traditional drying equipment often employs a single drying method, resulting in poor hot air circulation. Uneven distribution of hot air within the oven leads to over-drying of some chewable tablets while under-drying others, resulting in inconsistent product quality. Furthermore, insufficient contact between the hot air and the chewable tablets leads to low drying efficiency, increasing production time and costs. Simultaneously, the aluminum magnesium carbonate chewable tablets generate moisture during drying; if not promptly removed, this moisture accumulates within the oven, affecting the drying effect and potentially causing the tablets to become damp and deteriorate. The material placement method in traditional drying equipment is also inefficient. Chewable tablets are typically stacked, making it difficult for hot air to penetrate the material pile, resulting in incomplete drying of the tablets inside. Therefore, a hot air circulating oven for the production of aluminum magnesium carbonate chewable tablets needs to be designed. Utility Model Content
[0004] The purpose of this utility model is to provide a hot air circulating oven for the production of magnesium aluminum carbonate chewable tablets, which solves the problem of uneven hot air distribution in traditional ovens, resulting in inconsistent drying of magnesium aluminum carbonate chewable tablets, affecting product quality, and the technical problem that moisture is easily generated inside the oven during the drying process, which will reduce drying efficiency if not dealt with in time. The present invention achieves the goal of uniform drying.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot air circulating oven for the production of magnesium aluminum carbonate chewable tablets, comprising an oven body, two sets of protective sealing doors symmetrically arranged on the front of the oven body via hinges, a pull handle fixedly installed on the outer wall of the protective sealing door, a controller fixedly installed on the front of the protective sealing door, and air inlets evenly and equidistantly installed on the front of the protective sealing door; a circulating drying assembly disposed inside and above the oven body; the circulating drying assembly comprising: a hot air circulation section disposed above and inside the oven body; and a rotary drying section disposed inside the oven body, and the rotary drying section being disposed inside the hot air circulation section.
[0006] Preferably, the hot air circulation component includes: a mounting cover, which is fixedly installed on the top of the oven body; a heating plate, which is fixedly installed on the inner wall of the oven body; the rear surface of the mounting cover is provided with equidistant and uniform exhaust holes; a centrifugal fan is installed inside the mounting cover, and the centrifugal fan is fixedly installed on the top of the oven body through a support base, with two sets in total; the connection port of the centrifugal fan is connected to a connecting air duct.
[0007] Preferably, a blower nozzle is provided below the first connecting air duct, and the blower nozzles are evenly spaced on the top of the oven body. The outer wall of the first connecting air duct is connected to a second connecting air duct, and there are two sets of them, which extend into the interior of the oven body and are located on the inner walls of both sides of the oven body. The outer wall of the second connecting air duct is evenly spaced to a dispersing pipe.
[0008] Preferably, the outer wall of the dispersion tube is provided with air blowing holes at equal intervals, the outer side of the connecting air duct is provided with an isolation cover plate, and the isolation cover plate is fixedly installed on the bottom of the inner wall of the oven body. The outer wall of the isolation cover plate is provided with air blowing ports at equal intervals, and the air blowing ports and air blowing holes are compatible.
[0009] Preferably, the heating plate has a heating cavity inside, and heating resistance wires are fixedly installed at equal intervals inside the heating cavity.
[0010] Preferably, the rotary drying unit includes: a placement box, which is fixedly installed on the bottom inner wall of the oven body, and the top of the placement box has a circular groove; a motor, which is fixedly installed on the bottom inner wall of the circular groove, and the outer wall is fixedly installed with an isolation cover; a rotating ring, which is fixedly installed on the top inner wall of the oven body; the front of the placement box has an installation hole, and the inside of the installation hole is provided with a replacement switch door through a hinge; the top of the placement box has moisture absorption ports evenly spaced, and the inside of the placement box contains moisture-absorbing solid material.
[0011] Preferably, the output end of the motor is provided with a rotating support rod via a coupling, and the top of the rotating support rod is rotatably connected to a rotating ring. Circular support frames are fixedly installed on the outer wall of the rotating support rod at equal and uniform intervals.
[0012] Preferably, the top of the circular support frame is provided with an arc-shaped air vent at equal intervals, the outer wall of the circular support frame is fixedly installed with a limiting arc-shaped plate, and an arc-shaped holding frame is provided above the circular support frame for placing aluminum magnesium carbonate chewable tablets.
[0013] Preferably, the bottom of the inner wall of the arc-shaped container is provided with arc-shaped ventilation holes two at equal intervals, and the arc-shaped ventilation holes two are compatible with the arc-shaped ventilation holes one.
[0014] This invention provides a hot air circulating oven for the production of aluminum magnesium carbonate chewable tablets. It has the following beneficial effects:
[0015] (1) This utility model is equipped with an installation cover, exhaust vents and centrifugal fan, which can quickly extract the air inside the oven body. With the help of connecting air duct one, the extracted air is delivered to different positions inside the oven, so that the hot air can quickly fill the entire oven space. At the same time, connecting air duct two, dispersion pipe and blowing hole, the hot air is evenly distributed to both sides of the oven, so that the temperature of each area inside the oven is more uniform, avoiding the problem of uneven drying caused by local temperature being too high or too low. With the help of isolation cover plate and blowing vent, the hot air is guided to flow more reasonably, avoiding the hot air directly impacting certain areas and causing uneven temperature, thus achieving the effect of improving drying efficiency.
[0016] (2) This utility model is equipped with a motor that drives the rotating support rod to rotate through a coupling, thereby driving the arc-shaped holding frame to make a circular motion around the rotating ring, so that the aluminum magnesium carbonate chewing tablets can be heated evenly, avoiding poor drying effect due to uneven local heating. With the addition of arc-shaped air vent one and arc-shaped air vent two, the aluminum magnesium carbonate chewing tablets can be fully in contact with the hot air. At the same time, the placement box and moisture absorption port allow the moisture-absorbing solid material to absorb the moisture inside the oven, thereby improving the drying efficiency and product drying quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a hot air circulating oven for the production of aluminum magnesium carbonate chewable tablets according to this utility model;
[0019] Figure 3 This is a rear view of the exploded structure of a hot air circulating oven for producing aluminum magnesium carbonate chewable tablets according to this utility model.
[0020] Figure 4 This is a side view of the rotating part of a hot air circulating oven for producing aluminum magnesium carbonate chewable tablets according to this utility model.
[0021] In the diagram: 1. Oven body, 2. Protective sealing door, 3. Pull handle, 4. Controller, 5. Air inlet, 6. Circulating drying assembly, 61. Hot air circulation part, 611. Mounting cover, 612. Exhaust vent, 613. Centrifugal fan, 614. Connecting duct one, 615. Top air outlet, 616. Connecting duct two, 617. Dispersion pipe, 618. Air outlet, 619. Isolation cover plate, 6110. Air outlet, 6111. Heating plate, 6112. Heating chamber, 6113. U-shaped heating resistance wire, 62. Rotary drying part, 621. Placement box, 622. Replacement switch door, 623. Moisture absorption port, 624. Motor, 625. Rotating support rod, 626. Rotating ring, 627. Circular support frame, 628. Arc-shaped air vent one, 629. Limiting arc plate, 6210. Arc-shaped container frame, 6211. Arc-shaped air vent two. Detailed Implementation
[0022] 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.
[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example
[0024] The present invention addresses the problems of uneven hot air distribution in traditional drying ovens, leading to inconsistent drying of magnesium aluminum carbonate chewable tablets, affecting product quality, and the tendency for moisture to accumulate inside the oven during drying, which, if not addressed promptly, reduces drying efficiency. A preferred embodiment of this invention is a hot air circulating drying oven for the production of magnesium aluminum carbonate chewable tablets. Figure 1-4 As shown: A hot air circulating oven for the production of magnesium aluminum carbonate chewable tablets includes an oven body 1. Two sets of protective sealing doors 2 are hinged to the front of the oven body 1 and arranged symmetrically. A pull handle 3 is fixedly installed on the outer wall of the protective sealing door 2. A controller 4 is fixedly installed on the front of the protective sealing door 2. Air inlets 5 are evenly and uniformly fixedly installed on the front of the protective sealing door 2. A circulating drying assembly 6 is located inside and above the oven body 1. The circulating drying assembly 6 includes: a hot air circulation section 61, located above and inside the oven body 1; and a rotary drying section 62, located inside the oven body 1, and inside the hot air circulation section 61.
[0025] The hot air circulation part 61 includes: a mounting cover 611, which is fixedly installed on the top of the oven body 1; a heating plate 6111, which is fixedly installed on the inner wall of the oven body 1; the rear surface of the mounting cover 611 is provided with exhaust holes 612 at equal intervals; a centrifugal fan 613 is provided inside the mounting cover 611, and the centrifugal fan 613 is fixedly installed on the top of the oven body 1 by a support base. There are two sets of centrifugal fans 613, and the connection port of the centrifugal fan 613 is connected to a connecting air duct 614.
[0026] Below the connecting air duct 614, there is a blower 615, and the blower 615 is evenly spaced on the top of the oven body 1. The outer wall of the connecting air duct 614 is connected to the connecting air duct 616, and there are two sets of them, which extend into the interior of the oven body 1 and are located on the inner walls of both sides of the oven body 1. The outer wall of the connecting air duct 616 is evenly spaced to the dispersing pipe 617.
[0027] The outer wall of the dispersion tube 617 is provided with air blowing holes 618 evenly spaced. An isolation cover plate 619 is provided on the outer side of the connecting air duct 616. The isolation cover plate 619 is fixedly installed on the bottom of the inner wall of the oven body 1. The outer wall of the isolation cover plate 619 is provided with air blowing ports 6110 evenly spaced. The air blowing ports 6110 and the air blowing holes 618 are compatible.
[0028] The heating plate 6111 has a heating cavity 6112 inside, and heating resistance wires 6113 are evenly and uniformly fixed inside the heating cavity 6112.
[0029] Furthermore, this embodiment, by providing a mounting cover 611, an exhaust vent 612, and a centrifugal fan 613, can quickly extract air from inside the oven body 1. Combined with connecting duct 1 614, the extracted air is delivered to different locations inside the oven, allowing hot air to quickly fill the entire oven space. Simultaneously, connecting duct 2 616, a dispersion pipe 617, and an air vent 618 evenly distribute the hot air to both sides of the oven, making the temperature in each area of the oven more uniform and avoiding uneven drying caused by excessively high or low local temperatures. Combined with an isolation cover 619 and an air vent 6110, the hot air is guided to flow more rationally, preventing hot air from directly impacting certain areas and causing uneven temperature. Example
[0030] Please see Figures 1-4Furthermore, based on Embodiment 1, the rotary drying section 62 further includes: a placement box 621, which is fixedly installed on the bottom of the inner wall of the oven body 1, and a circular groove is provided on the top of the placement box 621; a motor 624, which is fixedly installed on the bottom of the inner wall of the circular groove, and an isolation cover is fixedly installed on the outer wall; a rotating ring 626, which is fixedly installed on the top of the inner wall of the oven body 1; a mounting hole is provided on the front of the placement box 621, and a replacement switch door 622 is provided inside the mounting hole through a hinge; moisture absorption ports 623 are provided evenly at equal intervals on the top of the placement box 621; and moisture-absorbing solid material is placed inside the placement box 621.
[0031] The output end of the motor 624 is provided with a rotating support rod 625 via a coupling, and the top of the rotating support rod 625 is rotatably connected to the rotating ring 626. Circular support frames 627 are fixedly installed at equal intervals on the outer wall of the rotating support rod 625.
[0032] The top of the circular support frame 627 is provided with arc-shaped air vents 628 at equal intervals. The outer wall of the circular support frame 627 is fixedly installed with a limiting arc plate 629. An arc-shaped holding frame 6210 is provided above the circular support frame 627 for holding aluminum magnesium carbonate chewable tablets.
[0033] The bottom of the inner wall of the arc-shaped container 6210 is provided with arc-shaped ventilation holes 6211 at equal intervals, and the arc-shaped ventilation holes 6211 are compatible with the arc-shaped ventilation holes 628.
[0034] Furthermore, in this embodiment, a motor 624 drives a rotating support rod 625 to rotate via a coupling, thereby causing the arc-shaped holding frame 6210 to move in a circular motion around the rotating ring 626. This ensures that the aluminum magnesium carbonate chewing tablets are heated evenly, avoiding poor drying results due to uneven heating in certain areas. Combined with the arc-shaped air vents 628 and 6211, the aluminum magnesium carbonate chewing tablets can fully contact the hot air. At the same time, the placement box 621 and the moisture absorption port 623 allow the moisture-absorbing solid material to absorb moisture from inside the oven.
[0035] In use, firstly, hot air is generated. A heating chamber 6112 is opened inside the heating plate 6111, and heating resistance wires 6113 are evenly and uniformly fixed inside the heating chamber 6112. After the heating resistance wires 6113 are energized, they generate heat to heat the air inside the oven body 1, so as to create a high-temperature environment inside the oven and provide the necessary temperature conditions for drying aluminum magnesium carbonate chewing tablets.
[0036] Next, after installing the casing 611, the surface of the casing has evenly spaced exhaust holes 612. These, along with two sets of centrifugal fans 613 installed inside, draw hot air from inside the oven body 1 through the exhaust holes 612 when the centrifugal fans 613 are started. A connecting duct 614 is connected to the connection port of the centrifugal fans 613, through which the drawn hot air is transported. An evenly spaced air outlet 615 below the connecting duct 614 blows some of the hot air directly to the top space of the oven body 1, allowing the upper area to heat up quickly. Two sets of connecting ducts 616 are connected to the outer wall of the connecting duct 614, extending to the inner walls on both sides of the oven body 1. Dispersion pipes 617 are evenly spaced on the outer wall of the connecting ducts 616, and air outlets 618 are evenly spaced on the outer wall of the dispersion pipes 617. Hot air is evenly blown from the air outlets 618 to both sides of the oven through the connecting air duct 616 and the dispersion pipe 617, ensuring that the inner side areas of the oven also receive sufficient hot air. An isolation cover 619, located on the outer side of the connecting air duct 616, is fixedly installed at the bottom of the inner wall of the oven body 1. The air outlets 6110, evenly spaced on the outer wall of the isolation cover 619, are adapted to match the air outlets 618. This guides the hot air to flow more rationally, preventing hot air from directly impacting certain areas and causing uneven temperature distribution. It also helps to direct the hot air towards the items to be dried, improving drying efficiency.
[0037] Furthermore, the placement box 621 is fixedly installed on the bottom of the inner wall of the oven body 1, and a circular groove is opened on its top. The motor 624 is fixedly installed on the bottom of the inner wall of the circular groove. After the motor 624 is started, it drives the rotating support rod 625 to rotate through the coupling. The top of the rotating support rod 625 is rotatably connected to the rotating ring 626 fixedly installed on the top of the inner wall of the oven body 1, thereby realizing the rotating support rod 625 to perform circular motion around the rotating ring 626. Circular support frames 627 are evenly fixedly installed on the outer wall of the rotating support rod 625 at equal intervals. An arc-shaped holding frame 6210 is set above the circular support frame 627 for placing the aluminum magnesium carbonate chewable tablets. Therefore, the aluminum magnesium carbonate chewable tablets will move in a circular motion around the rotating ring 626 along with the arc-shaped holding frame 6210, so that the aluminum magnesium carbonate chewable tablets can be heated evenly and avoid poor drying effect due to uneven heating in some areas. The circular support frame 627 has evenly spaced arc-shaped air vents 628 at its top, and the arc-shaped holding frame 6210 has evenly spaced arc-shaped air vents 6211 at its bottom inner wall, with the arc-shaped air vents 6211 matching the arc-shaped air vents 628. Hot air generated by the hot air circulation section 61 can pass through the magnesium aluminum carbonate chewing sheets via the arc-shaped air vents 628 and 6211, allowing the magnesium aluminum carbonate chewing sheets to fully contact the hot air and improving the drying effect.
[0038] Finally, moisture-absorbing vents 623 are evenly spaced at the top of the placement box 621, and moisture-absorbing solid material is placed inside the placement box 621. During the drying process, the moisture-absorbing solid material can absorb moisture from inside the drying oven, further ensuring the drying quality and preventing moisture from affecting the drying effect of the aluminum magnesium carbonate chewable tablets. A replacement switch door 622 is hinged inside the mounting hole on the front of the placement box 621. When it is necessary to place or remove the aluminum magnesium carbonate chewable tablets, the replacement switch door 622 can be opened for convenient and quick operation.
[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A hot air circulation oven for producing chewable tablets of aluminum magnesium carbonate, comprising an oven body (1), characterized in that: The front of the oven body (1) is provided with a protective sealing door (2) by hinge, and there are two sets in total, which are symmetrically arranged. A pull handle (3) is fixedly installed on the outer wall of the protective sealing door (2), a controller (4) is fixedly installed on the front of the protective sealing door (2), and an air inlet (5) is fixedly installed at equal intervals on the front of the protective sealing door (2). A circulating drying component (6) is disposed inside and above the oven body (1); The circulating drying component (6) includes: Hot air circulation section (61) is located above and inside the oven body (1); The rotary drying section (62) is located inside the oven body (1) and inside the hot air circulation section (61).
2. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 1, characterized in that: The hot air circulation section (61) includes: Mounting cover (611), which is fixedly mounted on the top of the oven body (1); Heating plate (6111), the heating plate (6111) is fixedly installed on the inner wall of the oven body (1); The rear surface of the mounting cover (611) is provided with equidistant and uniform exhaust holes (612). The interior of the mounting cover (611) is provided with centrifugal fans (613), and the centrifugal fans (613) are fixedly installed on the top of the oven body (1) by a support base. There are two sets of centrifugal fans (613). The connection port of the centrifugal fans (613) is connected to a connecting air duct (614).
3. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 2, characterized in that: Below the first connecting air duct (614) is a blower top opening (615), and the blower top openings (615) are evenly spaced on the top of the oven body (1). The outer wall of the first connecting air duct (614) is connected to the second connecting air duct (616), and there are two sets of them, which extend into the interior of the oven body (1) and are located on the inner walls of both sides of the oven body (1). The outer wall of the second connecting air duct (616) is evenly spaced to the distribution pipe (617).
4. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 3, characterized in that: The outer wall of the dispersion tube (617) is provided with air blowing holes (618) at equal intervals. The outer side of the connecting air duct (616) is provided with an isolation cover plate (619), and the isolation cover plate (619) is fixedly installed on the bottom of the inner wall of the oven body (1). The outer wall of the isolation cover plate (619) is provided with air blowing ports (6110) at equal intervals, and the air blowing ports (6110) are compatible with the air blowing holes (618).
5. A hot air circulating oven for producing aluminum magnesium carbonate chewable tablets according to claim 4, characterized in that: The heating plate (6111) has a heating cavity (6112) inside, and heating resistance wires (6113) are fixedly installed at equal intervals inside the heating cavity (6112).
6. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 1, characterized in that: The rotary drying section (62) includes: Placement box (621), which is fixedly installed on the bottom of the inner wall of the oven body (1), and a circular groove is provided on the top of the placement box (621); The motor (624) is fixedly installed at the bottom of the inner wall of the circular groove, and an isolation cover is fixedly installed on the outer wall; A rotating ring (626) is fixedly installed on the top of the inner wall of the oven body (1); The placement box (621) has an installation hole on its front side, and a replacement switch door (622) is hinged inside the installation hole. Moisture-absorbing ports (623) are evenly spaced on the top of the placement box (621). Moisture-absorbing solid material is placed inside the placement box (621).
7. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 6, characterized in that: The output end of the motor (624) is provided with a rotating support rod (625) via a coupling, and the top of the rotating support rod (625) is rotatably connected to the rotating ring (626). Circular support frames (627) are fixedly installed at equal intervals on the outer wall of the rotating support rod (625).
8. The hot air circulation oven for producing magnesium aluminum carbonate chewable tablets according to claim 7, characterized in that: The top of the circular support frame (627) is provided with arc-shaped air vents (628) at equal intervals. The outer wall of the circular support frame (627) is fixedly installed with a limiting arc plate (629). An arc-shaped holding frame (6210) is provided above the circular support frame (627) for placing aluminum magnesium carbonate chewable tablets. The bottom of the inner wall of the arc-shaped holding frame (6210) is provided with arc-shaped air vents (6211) at equal intervals, and the arc-shaped air vents (6211) are compatible with the arc-shaped air vents (628).