A granulating and slurry mixing device for a lozenge
By automating the design of the granulation tank, corn gluten dissolving tank, and slurry mixing tank, and combining vacuum negative pressure conveying and water bath heating, the cumbersome process of tablet granulation and slurry mixing has been solved, achieving efficient and safe drug production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGZHOU PIEN TZE HUANG PHARM
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-19
AI Technical Summary
The existing process for granulating and mixing lozenges is cumbersome, time-consuming, labor-intensive, inefficient, and poses quality risks and safety hazards.
By employing melting tanks, corn gluten dissolving tanks, and slurry mixing tanks, combined with vacuum negative pressure conveying and water bath heating technology, automated mixing and heating are achieved, reducing manual operation and improving production efficiency and safety.
This significantly reduced the labor intensity of personnel, improved production efficiency, reduced the risk of misoperation, and ensured the quality and safety of medicines.
Smart Images

Figure CN224371267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulp preparation equipment technology, and in particular to a pulp preparation equipment for tablet granulation. Background Technology
[0002] The original granulation process for lozenges involved an open-air jacketed kettle heated in a water bath, with manual stirring to mix the paste until it reached approximately 80°C. The paste was then passed through a 100-mesh sieve, and dextrin was added and stirred again until completely dissolved. Similarly, corn gluten and an 80% ethanol solution were stirred and heated in a water bath to approximately 80°C, followed by filtration. This manual process resulted in limited batch sizes, requiring repeated mixing for each granulation batch. The process was cumbersome, time-consuming, labor-intensive, inefficient, and posed certain quality and safety risks. Utility Model Content
[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a tablet granulation and pulping device.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A tablet granulation and mixing device includes a melting tank, a corn gluten dissolving tank, and a mixing tank. The internal spaces of the melting tank, corn gluten dissolving tank, and mixing tank form placement cavities, and each of the three tanks is further provided with a jacket. Each placement cavity is equipped with a stirring device. The device also includes a vacuum main pipeline, which is connected to each of the placement cavities via three vacuum branch pipelines. A vacuum pump is provided at the front end of the vacuum main pipeline, and each of the vacuum branch pipelines is equipped with a first switching valve. The device also includes a heat source tank, which is connected to each of the jackets.
[0006] Furthermore, the paste melting tank is provided with a first inlet connected to the placement cavity, the first inlet being connected to an external paste container via a first inlet pipe, and the first inlet pipe being provided with a first inlet valve; the corn gluten dissolving tank is provided with a second inlet connected to the placement cavity, the second inlet being connected to an external alcohol container via a second inlet pipe, and the second inlet pipe being provided with a second inlet valve.
[0007] Furthermore, filters are installed in the pipes leading from the paste melting tank and the corn gluten dissolving tank to the slurry mixing tank.
[0008] Furthermore, it also includes a main heating pipe, one end of which is connected to each of the jackets via three heating branch pipes, each of which is equipped with a second switching valve, and the other end of the main heating pipe is connected to the heat source tank.
[0009] Furthermore, a circulation pump is provided at the front end of the main heating pipe.
[0010] Furthermore, the melting tank, the mixing tank, and the corn gluten dissolving tank are also equipped with temperature detection devices.
[0011] Furthermore, it also includes a controller and a display device, wherein the stirring device and the temperature detection device are electrically connected to the controller, and the controller is electrically connected to the display device.
[0012] Furthermore, the paste melting tank, the slurry mixing tank, and the corn gluten dissolving tank are all provided with a feeding port communicating with the placement cavity, and a tank cover that is detachably connected to the feeding port.
[0013] Furthermore, each of the can lids is provided with lifting lugs.
[0014] Furthermore, the bottom of the placement chamber of the slurry mixing tank is connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.
[0015] The beneficial effects of this utility model are:
[0016] 1. This utility model proposes a tablet granulation and dispensing device, comprising a melting tank, a corn gluten dissolving tank, and a dispensing tank. The internal spaces of the melting tank, dispensing tank, and corn gluten dissolving tank form placement chambers, and each placement chamber is further provided with a jacket. A stirring device is installed in each placement chamber. The device also includes a vacuum main pipeline, which is connected to each placement chamber via three vacuum branch pipelines. A vacuum pump is installed at the front end of the vacuum main pipeline, and each vacuum branch pipeline is equipped with a first switching valve. Furthermore, a heat source tank is connected to each of the jackets. Compared to traditional fully manual operation, this device significantly reduces the labor intensity of personnel, effectively improves production efficiency, reduces operation time and labor costs, reduces the impact of human factors on the dispensing process, lowers the risk of misoperation, and ensures the quality and safety of the medicine.
[0017] 2. This utility model proposes a tablet granulation and slurry preparation device. The dissolving tank has a first inlet connected to the placement chamber. The first inlet is connected to an external paste container via a first inlet pipe, and the first inlet pipe is equipped with a first inlet valve. The corn gluten dissolving tank has a second inlet connected to the placement chamber. The second inlet is connected to an external alcohol container via a second inlet pipe, and the second inlet pipe is equipped with a second inlet valve. Part of the raw materials for slurry preparation are drawn into the corresponding tank placement chamber using a vacuum negative pressure principle, eliminating the need for manual material addition by workers, saving time and effort, and making the process more convenient.
[0018] 3. The present invention proposes a tablet granulation and slurry preparation device, wherein a circulation pump is provided at the front end of the heating main pipeline, and the melting tank, slurry preparation tank and corn gluten dissolving tank are also equipped with temperature detection devices. The circulation pump is used to deliver hot water to the tank jacket to heat the raw materials or solutions in the tank placement cavity in a water bath. The structure is simple and the heating is convenient. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the 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 the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a tablet granulation and pulping device according to the present invention;
[0021] Figure 2 for Figure 1 Enlarged view of point A;
[0022] Figure 3 for Figure 1 Enlarged view of point B;
[0023] Figure 4 for Figure 1 Enlarged view of point C;
[0024] Figure 5 for Figure 1 Enlarged diagram of point D;
[0025] In the diagram, 101 is the paste melting tank; 102 is the corn gluten dissolving tank; 103 is the slurry mixing tank; 104 is the heat source tank; 201 is the main vacuum pipeline; 202 is the vacuum branch pipeline; 203 is the vacuum pump; 204 is the first switching valve; 301 is the first feed inlet; 302 is the first feed pipe; 303 is the paste container; 304 is the first feed valve; 401 is the second feed inlet; 402 is the second feed pipe; 403 is the alcohol container; 404 is the second feed valve; 501 is the first slurry delivery pipe; 502 is the second slurry delivery pipe; 503 is the filter; 504 is the three-way valve; 601 is the main heating pipeline; 602 is the heating branch pipeline; 603 is the second switching valve; 604 is the circulating pump; 70 is the tank cover; 801 is the discharge pipe; 802 is the slurry receiving tank; and 90 is the support leg. Detailed Implementation
[0026] The following is combined Figure 1-5 This utility model will be described in detail.
[0027] A tablet granulation and preparation device includes a melting tank 101, a corn prion dissolving tank 102, and a preparation tank 103. The internal spaces of the melting tank 101, corn prion dissolving tank 102, and preparation tank 103 form placement chambers, and each of these tanks is further equipped with a jacket. Each placement chamber is equipped with a stirring device. The device also includes a main vacuum pipeline 201, which is connected to each placement chamber via three separate vacuum pipelines 202. A vacuum pump 203 is located at the front end of the main vacuum pipeline 201, and each separate vacuum pipeline 202 is equipped with a first switching valve 204. Furthermore, a heat source tank 104 is connected to each jacket. Compared to traditional fully manual operation, this device significantly reduces labor intensity, effectively improves production efficiency, reduces operation time and labor costs, minimizes the impact of human factors on the preparation process, reduces the risk of misoperation, and ensures the quality and safety of the medicine.
[0028] Specifically, the melting paste tank 101 and the corn gluten dissolving tank 102 each have a volume of 100L, the slurry mixing tank 103 has a volume of 200L, and the heat source tank 104 has a volume of 500L. After the solutions in the placement chambers of the melting paste tank 101 and the corn gluten dissolving tank 102 are prepared, they need to be transported to the placement chamber of the slurry mixing tank 103 for mixing and further processing. This transportation process adopts a vacuum negative pressure transportation method.
[0029] Vacuum negative pressure conveying is a technology that uses a vacuum pump 203 or other gas extraction device to create a negative pressure environment within a pipeline, thereby propelling materials along the pipeline. Specifically, the connecting channel between the melting paste tank 101 and the mixing tank 103 is first closed using a valve. Then, the vacuum pump 203 extracts air from the mixing tank 103 to create a low-pressure environment. Next, the connecting channel between the melting paste tank 101 and the mixing tank 103 is opened. At this point, the liquid in the melting paste tank 101 flows to the mixing tank 103 due to atmospheric pressure. This technology can be carried out in a closed system, reducing material loss and environmental pollution, while also improving conveying efficiency and safety. Vacuum negative pressure conveying technology is a common technique in this field and will not be elaborated upon here. Three vacuum sub-pipes 202 are respectively connected to the upper end of each placement chamber, and vacuuming is performed from the upper end of each placement chamber outwards.
[0030] The valve body mentioned above is the first switching valve 204, which is also known as the vacuum valve. The vacuum valve is a key component in a vacuum system used to control gas flow. Its working principle typically involves opening and closing the valve to control gas flow. When the vacuum valve is closed, the valve inside the valve body prevents gas flow; when the vacuum valve is open, the valve is removed from the valve body, allowing gas to pass freely. This movement can be achieved manually, by pressure differential, or by an electric motor. In a vacuum system, the vacuum valve's functions include switching gas passages, controlling the gas flow rate to regulate the vacuum level, and metering gas supply. For example, by adjusting the valve's opening angle, the gas flow rate through the pipeline can be controlled.
[0031] The heat source tank 104 is used to provide the heat source required for heating the slurry during the slurry preparation process. The heating method is hot water circulation heating (water bath heating) or steam heating, and hot water or steam is delivered to the corresponding tank body jacket (the jacket surrounds the outer cavity wall). Water bath heating is used for heating the paste melting tank 101 and the corn gluten dissolving tank 102, while both water bath and steam can be used for heating the slurry preparation tank 103.
[0032] A separate steam pipeline (not shown in the figure) is provided for transporting readily available steam produced by external devices. This steam pipeline has a first branch connecting to the top of the heat source tank 104, transporting steam to heat the cold water in the heat source tank 104 into hot water. This hot water is then transported from the bottom of the heat source tank 104 to the lower end of the jacket between the paste melting tank 101, the corn gluten dissolving tank 102, and the slurry mixing tank 103 via a circulation pump 604, flowing from bottom to top. After heating is completed or the water cools down, the water exits from the upper end of the jacket under the action of the circulation pump 604 or other extraction devices, returning to the heat source tank 104 through a cold water circulation pipeline (not shown in the figure) for reuse and further heating.
[0033] If the mixing tank 103 is heated by steam, the steam pipe has a second branch that is directly connected to the upper end of the jacket of the mixing tank 103. The steam enters from the top and exits from the bottom, and is discharged from the lower end of the jacket of the mixing tank 103.
[0034] The mixing device employs a top-drive agitator, with its rotation speed controlled by a frequency converter. Other existing structures can also be used for the mixing device; for reference, these will not be elaborated upon here. Alternatively, the mixing device can be omitted, and the material can be manually mixed using a mixing shovel through the feeding port.
[0035] In this embodiment, the paste melting tank 101 is provided with a first inlet 301 connected to the placement chamber. The first inlet 301 is connected to an external paste container 303 via a first inlet pipe 302, and the first inlet pipe 302 is provided with a first inlet valve 304. The corn gluten dissolving tank 102 is provided with a second inlet 401 connected to the placement chamber. The second inlet 401 is connected to an external alcohol container 403 via a second inlet pipe 402, and the second inlet pipe 402 is provided with a second inlet valve 404. The raw material paste and alcohol for slurry preparation are respectively drawn into the corresponding tank placement chambers using the principle of vacuum negative pressure, eliminating the need for manual addition of raw materials by workers, saving time and effort, and making it more convenient. For the specific process and principle of the drawing process, please refer to the working principle at the beginning or the end of the embodiment.
[0036] In this embodiment, filters 503 are installed in the pipes leading from the melting paste tank 101 and the corn gluten dissolving tank 102 to the slurry mixing tank 103. Specifically, the pipe from the melting paste tank 101 to the slurry mixing tank 103 is a first slurry delivery pipe 501, and the pipe from the corn gluten dissolving tank 102 to the slurry mixing tank 103 is a second slurry delivery pipe 502; the filter 503 is a 100-mesh Y-shaped filter 503; a confluence valve is also provided in the three-way valve 504, the outlets of the first slurry delivery pipe 501 and the second slurry delivery pipe 502 are connected to the two inlets of the confluence valve, and the outlet of the confluence valve is connected to the placement cavity of the slurry mixing tank 103. In the initial state, the connection between the two slurry delivery pipes and the placement cavity of the slurry mixing tank 103 is cut off by the three-way confluence valve. In use, the connection between one of the slurry delivery pipes and the placement cavity of the slurry mixing tank 103 is restored by the three-way confluence valve. The three-way confluence valve is prior art, and its specific structure and principle can be referred to in the prior art.
[0037] In this embodiment, a main heating pipe 601 is also included. One end of the main heating pipe 601 is connected to each interlayer via three heating branch pipes 602. Each heating branch pipe 602 is equipped with a second switching valve 603. The other end of the main heating pipe 601 is connected to a heat source tank 104. Furthermore, the main heating pipe 601 is equipped with a circulation pump 604.
[0038] Specifically, the circulating pump 604 is a hot water circulating pump 604. The hot water circulating pump 604 is a device used to circulate hot water. It ensures a continuous flow of hot water in the piping system by pumping hot water, thus providing an immediate supply of hot water. This type of pump is commonly used in hot water heating systems in homes, commercial buildings, or industrial systems. Its working principle involves using a motor to drive a pump impeller to rotate, thereby drawing hot water from the storage tank, transporting it through pipes to where hot water is needed, and then returning it to the storage tank, forming a cycle. In this way, hot water can be quickly provided whenever needed.
[0039] In this embodiment, the paste melting tank 101, the slurry mixing tank 103 and the corn gluten dissolving tank 102 are also equipped with temperature detection devices to detect the real-time temperature of the solutions in the respective placement chambers of the paste melting tank 101, the slurry mixing tank 103 and the corn gluten dissolving tank 102.
[0040] In this embodiment, a controller and a display device are also included. The stirring device and the temperature detection device are electrically connected to the controller, and the controller is electrically connected to the display device. The display device, i.e., the display interface, allows real-time viewing of the temperature and stirring speed inside the tank.
[0041] A temperature detection device monitors the water temperature and transmits the detected temperature information to the controller. The controller determines the start and stop of the circulation pump 604 based on a preset temperature range or program, thereby achieving automatic control of the outlet water temperature. When the controller detects that the water temperature is lower than the preset value, it starts the circulation pump 604 to circulate hot water in the system until the water temperature reaches the preset value. When the water temperature reaches or exceeds the preset value, the controller stops the circulation pump 604. Alternatively, the controller can be used only to receive information from the temperature detection device and the stirring speed, with the circulation pump 604 manually controlled. The controller can also be a SCADA (Supervisory Control and Data Acquisition) system. SCADA systems are used for remote monitoring and control of industrial facilities. They integrate data acquisition, network communication, and human-machine interface functions, enabling real-time display of equipment status, data recording, and issuing control commands when necessary. Alternatively, the controller can be a PLC (Programmable Logic Controller). PLCs are common control systems in industrial automation. They store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations through programmable memory and can control various types of mechanical equipment or production processes through digital or analog inputs / outputs. PLCs offer high flexibility and programmability, enabling the implementation of complex control logic and making them suitable for various industrial applications. Specific controller configurations should refer to existing technologies.
[0042] In this embodiment, the paste melting tank 101, the slurry mixing tank 103, and the corn gluten dissolving tank 102 are all provided with a feeding port communicating with the placement chamber, and a tank cover 70 detachably connected to the feeding port; furthermore, each tank cover 70 is provided with a lifting lug. The feeding port is located at the top of each tank. The slurry preparation requires a variety of raw materials. Some raw materials are conveyed by vacuum negative pressure, while others are directly added manually through the feeding port.
[0043] In this embodiment, the bottom of the placement chamber of the slurry mixing tank 103 is connected to a discharge pipe 801, and a discharge valve (not shown in the figure) is provided on the discharge pipe 801. Specifically, one end of the discharge pipe 801 is connected to the bottom of the placement chamber of the slurry mixing tank 103, and the other end faces downward. A receiving tank 802 is aligned with the other end of the discharge pipe 801 to receive the final prepared slurry.
[0044] In this embodiment, the bottom of the outer wall of the melting tank 101, the corn gluten dissolving tank 102, and the slurry mixing tank 103 are provided with several support feet 90.
[0045] The working principle of the tablet granulation and pulping device proposed in this utility model is as follows:
[0046] Initially, all valves are closed. Valves are opened only as needed to connect specific pipelines. Once the current step is completed, the valve is closed again.
[0047] Step 1: To prepare compound Pien Tze Huang lozenges, water extract and alcohol extract are required. The extract has good fluidity when cooled. So after the extract is taken out of the cold storage, it is placed in the extract container 303 and directly sucked into the melting tank 101 by vacuum negative pressure. That is, the first switch valve 204 on the vacuum pipe 202 corresponding to the melting tank 101 is opened, and the vacuum pump 203 draws air out of the placement cavity of the melting tank 101 to form a vacuum negative pressure environment. Then the first feed valve 304 is opened, and the extract in the extract container 303 will be sucked into the placement cavity of the melting tank 101 along the first feed pipe 302.
[0048] Step 2: Then heat and stir the paste in the placement chamber of the melting pot 101. Open the second switch valve 603 on the heating branch pipe 602 corresponding to the melting pot 101. Use the circulation pump 604 to transport the hot water from the heat source tank 104 through the heating branch pipe 602 corresponding to the melting pot 101 to the jacket of the melting pot 101. Turn on the stirring device to completely dissolve it.
[0049] Step 3: After the paste is completely dissolved, it is transported to the mixing tank 103 under vacuum negative pressure. Specifically, the first switch valve 204 on the vacuum distribution pipe 202 of the mixing tank 103 is opened, and the vacuum pump 203 draws air out of the placement chamber of the mixing tank 103 to form a vacuum negative pressure environment. Then, the corresponding valve on the pipe from the melting tank 101 to the mixing tank 103 is opened, and the paste in the placement chamber of the melting tank 101 is sucked into the placement chamber of the mixing tank 103 along the corresponding pipe.
[0050] Step 4: Then open the feeding port at the top of the mixing tank 103 and manually add a certain amount of dextrin into the placement chamber, and stir to dissolve.
[0051] Step 5: Put alcohol into the alcohol container 403, and then use vacuum negative pressure to transport the alcohol to the corn gluten dissolving tank 102. That is, open the first switch valve 204 on the vacuum distribution pipe 202 corresponding to the corn gluten dissolving tank 102, so that the vacuum pump 203 can draw air out of the placement chamber of the corn gluten dissolving tank 102 to form a vacuum negative pressure environment. Then open the second feed valve 404, and the alcohol in the alcohol container 403 will be sucked into the placement chamber of the corn gluten dissolving tank 102 along the second feed pipe 402.
[0052] Step 6: Open the feeding port at the top of the corn gluten dissolving tank 102 and manually add a certain amount of corn gluten into the placement chamber.
[0053] Step 7: Turn on the stirring device in the placement chamber of the corn gluten dissolving tank 102 to heat and stir the mixture evenly to form a corn gluten solution.
[0054] Step 8: The corn gluten solution is transported to the mixing tank 103 under vacuum negative pressure. Specifically, the first switch valve 204 on the vacuum distribution pipe 202 of the mixing tank 103 is opened, allowing the vacuum pump 203 to evacuate air from the placement chamber of the mixing tank 103 to form a vacuum negative pressure environment. Then, the corresponding valve on the pipe connecting the corn gluten dissolving tank 102 to the mixing tank 103 is opened, and the corn gluten solution in the placement chamber of the corn gluten dissolving tank 102 is sucked into the placement chamber of the mixing tank 103 along the corresponding pipe.
[0055] Step 9: Heat and stir the two solutions added to the cavity of the mixing tank 103 in steps 4 and 8. Specifically, open the second switch valve 603 on the corresponding heating branch pipe 602 of the mixing tank 103, and use the circulating pump 604 to transport hot water from the heat source tank 104 through the corresponding heating branch pipe 602 of the mixing tank 103 to the jacket of the mixing tank 103, and turn on the stirring device. After stirring evenly, the mixing is complete.
[0056] Step 10: Finally, open the discharge valve at the bottom of the mixing tank 103, add compressed air to the mixing tank 103 or let the prepared slurry flow out of the mixing tank 103 and into the receiving tank 802 under the action of gravity along the discharge pipe 801.
[0057] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A tablet containing granulation slurry preparation device characterized by, The device includes a melting tank, a corn gluten dissolving tank, and a slurry mixing tank. The internal spaces of the melting tank, corn gluten dissolving tank, and slurry mixing tank form placement cavities, and each of the three tanks is further provided with a jacket. Each placement cavity is equipped with a stirring device. The device also includes a main vacuum pipeline, which is connected to each of the placement cavities via three separate vacuum pipelines. A vacuum pump is provided at the front end of the main vacuum pipeline, and each of the separate vacuum pipelines is equipped with a first switching valve. The device also includes a heat source tank, which is connected to each of the jackets.
2. The tablet granulation and pulping device as described in claim 1, characterized in that, The paste melting tank is provided with a first inlet connected to the placement cavity. The first inlet is connected to an external paste container through a first inlet pipe. The first inlet pipe is provided with a first inlet valve. The corn gluten dissolving tank is provided with a second inlet connected to the placement cavity. The second inlet is connected to an external alcohol container through a second inlet pipe. The second inlet pipe is provided with a second inlet valve.
3. The tablet granulation and pulping device as described in claim 1, characterized in that, Each of the paste melting tank and corn gluten dissolving tank has a filter installed in the pipe leading to the slurry mixing tank.
4. The tablet granulation and pulping device as described in claim 1, characterized in that, It also includes a main heating pipe, one end of which is connected to each of the jackets via three heating branch pipes, each of which is equipped with a second switch valve, and the other end of the main heating pipe is connected to the heat source tank.
5. The tablet granulation and pulping device as described in claim 4, characterized in that, A circulation pump is installed at the front end of the main heating pipeline.
6. The tablet granulation and pulping device as described in claim 1, characterized in that, The melting tank, slurry mixing tank, and corn gluten dissolving tank are also equipped with temperature detection devices.
7. The tablet granulation and pulping device as described in claim 6, characterized in that, It also includes a controller and a display device, wherein the stirring device and the temperature detection device are electrically connected to the controller, and the controller is electrically connected to the display device.
8. The tablet granulation and pulping device as described in claim 1, characterized in that, The melting tank, slurry mixing tank, and corn gluten dissolving tank are all equipped with a feeding port connected to the placement cavity, and a tank cover that can be detachably connected to the feeding port.
9. The tablet granulation and pulping device as described in claim 8, characterized in that, Each of the can lids is equipped with a lifting lug.
10. The tablet granulation and pulping device as described in claim 1, characterized in that, The bottom of the placement chamber of the slurry mixing tank is connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.