A medicine residue pressing device

Abstract

The utility model discloses a kind of drug residue pressure residue devices, the first opening cavity is opened in the leakage medicine bucket of the device, pressure residue bucket is set in the first opening cavity, and the spacing is set between the bottom of pressure residue bucket and the bottom of first opening cavity, second opening cavity and multiple liquid leakage holes that pass through the bottom of second opening cavity to the inside of first opening cavity are opened in pressure residue bucket, pressure residue disc is slidably set in the second opening cavity of adaptation, and multiple exhaust holes are provided on pressure residue disc, pressure pipe is connected on pressure residue disc, compressed gas pipe is connected with multiple exhaust holes after penetrating pressure pipe, when the device is to drug residue pressure residue, pressure residue disc is driven under pressure pipe and slides to the surface of drug residue along the inner wall of second opening cavity, compressed gas pipe injects compressed gas to multiple exhaust holes, compressed gas is injected into the inside of drug residue to form fluid disturbance effect, so that liquid medicine remaining in the inside of drug residue can be rapidly released, under the double thrust effect of compressed gas and pressure pipe, liquid medicine can quickly flow into the first opening cavity of leakage medicine bucket from multiple liquid leakage holes.

Description

Technical Field

[0001] This utility model relates to the field of medicinal residue and liquid separation technology, and in particular to a medicinal residue pressing device. Background Technology

[0002] As a crucial step in traditional Chinese medicine (TCM) treatment, the decoction process directly impacts the extraction efficiency of active ingredients and the final clinical efficacy. With advancements in medical technology and increasing public concern for the convenience and safety of TCM, decoction machines are gradually replacing traditional earthenware pots and are widely used in TCM clinics and medical institutions to improve efficiency and quality. However, current commercially available automatic decoction machines still have significant shortcomings in areas such as dregs filtration and liquid recovery, hindering their widespread adoption and further improvement in user experience.

[0003] Currently, most automatic decoction machines process Chinese medicinal herbs using a bag-based decoction method. This involves placing the herbs in a medicine bag (filter bag) and then heating and decocting them in a decoction pot. The liquid is then separated from the dregs through natural drip filtration. This gravity-dependent drip filtration method is inefficient and fails to fully extract the dregs, leaving some effective liquid residue in the medicine bag. This reduces the content of active ingredients in the liquid and affects the efficacy. Furthermore, while some machines incorporate simple auxiliary squeezing devices, manual operation is still required, posing potential risks such as cumbersome operation, high labor intensity, and burns from high temperatures.

[0004] In existing compression technologies, a common method involves using a lever mechanism with a pressure plate to squeeze the medicine bag. This method is inefficient, and the high temperature of the decoction after boiling makes it easy to suffer burns from steam or injury from splashing liquid during compression, posing significant safety hazards. Another method uses a hydraulic device with a pressure plate to pressurize the slag and liquid. While this improves the efficiency of liquid recovery to some extent, it still results in incomplete discharge of the liquid. Multiple compressions or applying greater pressure are usually required to achieve a satisfactory slag-pressing effect. Furthermore, the presence of medicine residue during the pressing process easily clogs the drain port of the slag-pressing tank. This not only increases the energy consumption and operating costs of the equipment but also accelerates the wear and tear of mechanical parts, shortening the equipment's lifespan. Utility Model Content

[0005] This utility model provides a slag pressing device for medicinal residues to solve the technical problem that existing slag pressing devices have a high residual amount of medicinal liquid in the slag, which easily leads to waste of medicinal liquid.

[0006] To solve the above-mentioned technical problems, this utility model provides a dregs pressing device, including a pressure pipe, a pressing plate, a compressed air pipe, a leaking medicine barrel, and a pressing barrel. The leaking medicine barrel has a first opening, and the pressing barrel is disposed in the first opening with a distance between the bottom of the pressing barrel and the bottom of the first opening. The pressing barrel has a second opening and multiple leakage holes penetrating from the bottom of the second opening to the first opening. The pressing plate is slidably disposed in the corresponding second opening and has multiple vent holes. The pressure pipe is connected to the top of the pressing plate, and the compressed air pipe passes through the pressure pipe and is connected to the multiple vent holes.

[0007] Furthermore, an arc-shaped cavity is provided at the bottom of the second opening, and the bottom of the arc-shaped cavity forms a compression cavity with the bottom of the slag pressing bucket. The thickness of the compression cavity gradually decreases from the center of the second opening along the radial direction to the surrounding area.

[0008] Furthermore, the plurality of vent holes are arranged in a ring at the bottom of the slag pressing plate, and the plurality of leakage holes are located in the central area of ​​the bottom of the second opening, and the projection of the vent holes onto the bottom of the second opening is located around the leakage holes.

[0009] Furthermore, the compression chamber extends radially from the center of the second open cavity to the exhaust port.

[0010] Furthermore, the density of the plurality of leakage holes gradually decreases radially from the center of the second opening towards the vent hole.

[0011] Furthermore, each of the vent holes is equipped with a one-way valve, which is used to prevent the liquid in the dregs from flowing back into the vent holes.

[0012] Furthermore, a buffer chamber is provided inside the slag pressing pan, and the compressed air pipe and the plurality of exhaust holes are all connected to the buffer chamber.

[0013] Furthermore, the slag pressing plate includes a slag pressing base, an air injection plate, and a buffer air bladder. The bottom of the slag pressing base has a third opening, and the air injection plate has a fourth opening opposite to the third opening. Multiple exhaust holes are opened on the air injection plate and communicate with the fourth opening. The air injection plate is disposed inside the third opening, and the buffer cavity is formed between the third opening and the fourth opening. The buffer air bladder is disposed inside the buffer cavity and is connected to the compressed air pipe and the multiple exhaust holes.

[0014] Furthermore, the pressure tube includes a fixed tube, a compression tube, an elastic element, and a limiting element. One end of the compression tube is connected to the slag pressing plate, and the other end is slidably sleeved outside the fixed tube. One end of the elastic element extends into and is fixed to the inner wall of the compression tube, and the other end is disposed on the fixed tube. A limiting hole is opened on the side wall of the compression tube. The limiting element is disposed on the fixed tube and slides through the limiting hole to limit the movement range of the compression tube. When the elastic element returns, it drives the compression tube to reset.

[0015] Furthermore, it also includes a compressed air pump and a sensor. The compressed air pump is connected to the compressed air pipe, and the sensor is disposed in the limiting hole and electrically connected to the compressed air pump. The limiting member is used to trigger the sensor to control the compressed air pump to deliver compressed gas.

[0016] Compared with the prior art, the beneficial effects of the slag pressing device of this utility model embodiment are as follows: This invention innovatively incorporates a pressing disc with multiple vent holes and a compressed air pipe connected to these vent holes into a combined structure of a medicine-leaking tank and a pressing tank, creating an integrated medicine residue pressing system with automatic air injection, uniform extrusion, and efficient liquid discharge functions. When using this device to press medicine residue, the unfiltered residue is placed in the second opening of the pressing tank. The pressing disc, driven by the pressure pipe, slides along the inner wall of the second opening to the surface of the residue. Compressed gas is then injected through the multiple vent holes on the pressing disc via the compressed air pipe. The gas enters the residue and disperses its structure through diffusion, generating a fluid disturbance effect during pressing. This allows the residual liquid inside the residue to be released rapidly. Under the combined thrust of the compressed gas and the pressing disc, the liquid flows through multiple drain holes at the bottom of the pressing tank into the first opening of the medicine-leaking tank, effectively preventing backflow or retention due to local obstruction or residue accumulation. This ensures thorough liquid removal from the residue and significantly improves the pressing efficiency. The pressure-injection-assisted slag pressing structure constructed in this device not only significantly enhances the pressing depth and thoroughness of medicinal residues, but also achieves efficient and stable slag pressing results without adding extra operating steps through a relatively compact structure and automated operation process. This technical solution avoids problems such as uneven pressing, residual liquid, and equipment contamination that easily occur in traditional manual slag pressing methods. It significantly improves the efficiency and reliability of automated slag cleaning and liquid-slag separation processes, and is suitable for slag processing in various scenarios of traditional Chinese medicine decoction or liquid extraction, providing key support for the automated operation of intelligent equipment such as decoction machines. Overall, this device has advantages such as reasonable structure, simple operation, thorough slag pressing, high efficiency, and strong adaptability, significantly improving the overall intelligence level and hygiene control capabilities of the system, and has good application and promotion value and industrialization prospects.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0018] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation on this utility model. Wherein: Figure 1 This is a schematic diagram of the overall structure of the slag pressing device equipped with a robotic arm gripper provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the dregs pressing device provided in this embodiment of the utility model from one angle; Figure 3 This is a structural schematic diagram of the dregs pressing device provided in another embodiment of the present utility model; Figure 4 yes Figure 3 A cross-sectional view of the dregs pressing device provided in the image, along the AA direction; Figure 5 yes Figure 4 An enlarged schematic diagram of the structure of the slag pressing device at point B provided in the document; Figure 6 This is a schematic diagram of the structure of the slag pressing base in the slag pressing device provided in this embodiment of the utility model; Figure 7 This is a schematic diagram of the air injection plate at one angle in the slag pressing device for medicinal residue provided in this embodiment of the utility model; Figure 8 This is a structural schematic diagram of the air injection plate at another angle in the slag pressing device for medicinal residue provided in this embodiment of the utility model; Figure 9 This is a schematic diagram of the structure of the pressure pipe connecting the pressing plate in the slag pressing device provided in this embodiment of the utility model.

[0019] In the diagram, 10 is the dregs pressing device; 11 is the dregs leakage tank; 111 is the first opening; 112 is the drain pipe; 12 is the pressing tank; 121 is the second opening; 122 is the leakage hole; 123 is the arc-shaped cavity; 13 is the pressing plate; 131 is the pressing base; 1311 is the third opening; 132 is the air injection plate; 1321 is the exhaust hole; 1322 is the fourth opening; 133 is the buffer chamber; 134 is the buffer airbag; 14 is the compressed air pipe; 15 is the pressure pipe; 151 is the fixed pipe; 152 is the compression pipe; 1521 is the limiting hole; 153 is the elastic element; 154 is the limiting element; 16 is the one-way valve; 17 is the compressed air pump; 18 is the sensor; and 20 is the robotic arm gripper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and 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 scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the directional terms such as "middle", "upper", "lower", "inner", "outer", "vertical", "lateral", "vertical", and "horizontal" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0023] In this utility model, the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. "A plurality" means two or more, unless otherwise explicitly defined. "Several" means one or more, unless otherwise explicitly defined.

[0024] Reference Figure 1-4As shown, this utility model embodiment provides a dregs pressing device 10, including a pressure pipe 15, a pressing plate 13, a compressed air pipe 14, a medicine leakage tank 11, and a pressing barrel 12. The medicine leakage tank 11 has a first opening 111. The pressing barrel 12 is disposed in the first opening 111, and the bottom of the pressing barrel 12 is spaced apart from the bottom of the first opening 111. The pressing barrel 12 has a second opening 121 and multiple leakage holes 122 penetrating from the bottom of the second opening 121 to the first opening 111. The pressing plate 13 is slidably disposed in the corresponding second opening 121, and the pressing plate 13 has multiple vent holes 1321. The pressure pipe 15 is connected to the top of the pressing plate 13. The compressed air pipe 14 passes through the pressure pipe 15 and is connected to the multiple vent holes 1321 to inject compressed gas into the dregs squeezed by the pressing plate 13 driven by the pressure pipe 15, so that the liquid medicine in the dregs flows into the first opening 111.

[0025] This utility model embodiment innovatively sets up a slag pressing plate 13 with multiple vent holes 1321 and a compressed air pipe 14 connected to the multiple vent holes 1321 in the combined structure of the medicine leakage tank 11 and the slag pressing tank 12, thus constructing an integrated medicine slag pressing system with automatic air injection, uniform extrusion and efficient liquid discharge functions. When using this device to press medicinal residue, simply place the unfiltered residue into the second opening 121 on the pressing barrel 12. The pressing disc 13 will slide along the inner wall of the second opening 121 to the surface of the residue under the drive of the pressure pipe 15. Then, the compressed air pipe 14 injects compressed gas into the multiple exhaust holes 1321 on the pressing disc 13. The gas enters the interior of the residue and disperses the residue structure through its diffusion effect, generating a fluid disturbance effect during the pressing process. This allows the liquid medicine remaining inside the residue to be released quickly. Under the dual thrust of the compressed gas and the pressing disc 13, the liquid medicine can flow into the first opening 111 of the medicine leakage barrel 11 through the multiple leakage holes 122 at the bottom of the pressing barrel 12. This effectively prevents the liquid medicine from seeping back or stagnating due to local obstruction or residue accumulation, ensuring that the residue is fully dehydrated and effectively improving the pressing efficiency of the medicinal residue. The pressure-injection-assisted slag pressing structure constructed in this device not only significantly enhances the pressing depth and thoroughness of medicinal residues, but also achieves efficient and stable slag pressing results without adding extra operating steps through a relatively compact structure and automated operation process. This technical solution avoids problems such as uneven pressing, residual liquid, and equipment contamination that easily occur in traditional manual slag pressing methods. It significantly improves the efficiency and reliability of automated slag cleaning and liquid-slag separation processes, and is suitable for slag processing in various scenarios of traditional Chinese medicine decoction or liquid extraction, providing key support for the automated operation of intelligent equipment such as decoction machines. Overall, this device has advantages such as reasonable structure, simple operation, thorough slag pressing, high efficiency, and strong adaptability, significantly improving the overall intelligence level and hygiene control capabilities of the system, and has good application and promotion value and industrialization prospects.

[0026] In this process, the injection of compressed gas plays a significant role in promoting and disturbing the liquid discharge. Traditional mechanical pressing methods mainly rely on unidirectional force to deform the dregs and discharge the liquid. However, due to the dense structure and severe fiber entanglement of the dregs, and the different physical properties of various Chinese medicinal materials, local accumulation and blockage of channels are easily formed. Especially at the end of the pressing process, it is difficult to completely discharge the internal residual liquid, often resulting in problems such as decreased flow rate and residual liquid retention. To address this, this embodiment of the invention injects high-pressure compressed gas into multiple exhaust holes 1321 on the pressing plate 13, allowing the airflow to directly penetrate into the tiny pores inside the dregs, forming a uniformly diffused disturbance area. Specifically, the compressed gas expands rapidly during release, generating an instantaneous high-pressure pulse effect. This not only breaks up the accumulation structure of the dregs and reduces its overall compression density, but also breaks through the state of liquid being wrapped or retained between fibers, promoting rapid flow of the liquid. At the same time, this disturbed airflow breaks the static or stagnant state of the local liquid, effectively reducing the resistance barrier formed by the surface tension of the liquid, and significantly enhancing the conductivity and dischargeability of the liquid. Therefore, the introduction of dynamic disturbance of compressed gas during the slag pressing process not only strengthens the flow drive of the liquid medicine, but also effectively improves the smoothness of the drainage path, so that the liquid medicine can be discharged smoothly and completely through multiple leakage holes 122 at the bottom of the slag pressing bucket 12, which greatly improves the efficiency of liquid-slag separation and the thoroughness of descaling, and provides a reliable guarantee for the full recovery of residual liquid in scenarios such as traditional Chinese medicine decoction liquid.

[0027] This device preferably employs an intermittent injection of compressed gas through the compressed gas pipe 14, rather than continuous ventilation, primarily based on comprehensive technical considerations regarding slag pressing efficiency and liquid discharge stability. On one hand, intermittent gas injection can create a momentary pulse airflow under high pressure and short-term release, possessing stronger impact force. This effectively breaks up the compacted drug residue structure, promoting rapid release of residual liquid and accelerating the discharge of the drug liquid along the drain hole 122. In contrast, while continuous ventilation provides a stable airflow, its limited pressure makes it difficult to generate sufficient disturbance force in a short time, resulting in weaker compression and liquid propulsion effects on deep drug residue. On the other hand, continuous ventilation easily accumulates air cushions within the drug residue, affecting the effective contact between the slag pressing plate 13 and the drug residue, thus weakening the transmission of mechanical slag pressing force. It may also cause drug liquid splashing, gas mixing, or foam generation, which is detrimental to the cleanliness and stability of liquid-slag separation. By adopting a directional, high-pressure, intermittent air injection method, and coordinating with the synchronous pressing of the slag pressing plate 13, it is possible to achieve deep disturbance of the internal structure of the slag and efficient discharge of residual liquid while ensuring effective pressure application, thereby improving the efficiency of liquid discharge and ensuring the controllability, stability and cleanliness of the overall slag pressing process. It is particularly suitable for high-standard application scenarios such as concentrated decoction of traditional Chinese medicine with strict requirements for liquid recovery rate and hygiene conditions.

[0028] Furthermore, the injection of compressed gas into the vent 1321 is typically performed after the pressing plate 13 contacts the dregs and begins to apply substantial compressive pressure. At this point, the dregs have been preliminarily compacted, possessing a certain structural density and structural support. Injecting compressed gas at this stage not only enhances the disturbance effect during the pressing process but also effectively prevents the compressed gas from escaping prematurely before the dregs are formed, thus avoiding gas waste or disruption of the pressing path of the pressing plate 13. Additionally, injecting gas after the pressing plate 13 contacts the dregs utilizes the relatively enclosed space formed between the pressing plate 13 and the inner wall of the pressing barrel 12 as a pressure chamber, allowing high-pressure gas to penetrate more concentratedly into the dregs within a limited space. This improves injection efficiency and disturbance depth, achieving a more thorough liquid-dreg separation effect. Simultaneously, this enclosed structure effectively restricts the gas flow range, preventing high-pressure gas from directly acting on the free surface of the liquid and causing liquid splashing, thus avoiding liquid spillage that contaminates equipment or affects the cleanliness of subsequent processes.

[0029] To further improve the ease of cleaning and maintenance efficiency of this device, the leakage tank 11 and the slag pressing tank 12 are preferably designed as a detachable assembly. The slag pressing tank 12 has multiple locking structures along its wall, such as hooks, limiting flanges, or screw fasteners, to achieve quick assembly and stable engagement with the leakage tank 11. In actual use, the operator only needs to insert the slag pressing tank 12 into the first opening 111 of the leakage tank 11, ensuring that the locking structures on its upper edge accurately engage with the pre-set grooves or protrusions on the edge of the leakage tank 11. This completes the positioning and installation of the slag pressing tank 12 without the need for tools, making the assembly and disassembly process quick and efficient.

[0030] It should be noted that this device does not perform the slag pressing operation directly in the first opening 111 of the medicine leakage tank 11. Instead, the slag is confined to the second opening 121 of the slag pressing tank 12 for slag pressing. This is mainly based on a comprehensive consideration of drainage smoothness and anti-clogging effect. If the slag is pressed directly in the first opening 111, due to the large pressure applied by the slag pressing plate 13, coupled with the disturbance injection of compressed gas, the fine particles in the slag are easily stirred up and flushed into the drainage pipe 112 located at the bottom of the first opening 111 along with the liquid, which can easily lead to blockage of the drainage channel and affect the normal operation of the device. In contrast, confining the drug residue within the smaller second opening 121 for pressing ensures that even if a small amount of debris inevitably mixes into the liquid flow during pressing and aeration, this debris will preferentially pass through the filter screen at the inlet of the drain pipe 112 before being discharged, effectively intercepting particulate impurities and ensuring smooth and stable drainage. Furthermore, the amount of debris lost is very limited and usually negligible, having no substantial impact on the equipment. The first opening 111 itself is a large-volume liquid storage space. After the liquid is discharged through the drain hole 122, it can achieve a certain degree of buffering and collection within this cavity, preventing backflow of the liquid due to excessively high local liquid levels or back pressure, thus facilitating a smooth connection between the pressing and drainage processes. Therefore, the segmented structure not only optimizes the liquid-sludge separation effect but also effectively reduces the risks of clogging, contamination, and backflow, ensuring the continuity and reliability of the device's operation.

[0031] Reference Figure 4 As shown, in an optional embodiment of the present invention, an arc-shaped cavity 123 is provided at the bottom of the second opening 121, and a compression cavity is formed between the bottom of the arc-shaped cavity 123 and the bottom of the slag pressing bucket 12. The thickness of the compression cavity gradually decreases from the center of the second opening 121 to the surrounding area along the radial direction.

[0032] Specifically, by setting an arc-shaped cavity 123 at the bottom of the second opening 121, the bottom of the second opening 121 forms a downward-curving arc-shaped compression cavity structure. The arc-shaped compression cavity effectively guides the liquid to flow towards the central drainage area by forming a concave central region, avoiding liquid accumulation or stagnation around the perimeter and improving drainage efficiency. At the same time, during the pressing process, the dregs will naturally tend to concentrate and accumulate in the central region when subjected to pressure, achieving directional compaction. This centrally concentrated pressing path not only improves pressing efficiency but also significantly reduces the structural hazards caused by dregs accumulating on the surrounding walls. If dregs are compressed and accumulated around the perimeter of the pressing barrel 12 for a long time, they are prone to applying bias pressure to the barrel wall, leading to barrel deformation or cracking, especially under high-frequency operating conditions, which can easily cause fatigue damage. In addition, dregs accumulated at the edge may be carried out during the lifting or discharge of the pressing plate 13, or leak along the gap between the pressing plate 13 and the barrel wall, affecting the overall sealing and pressing efficiency. Secondly, the structural feature of the compression cavity thickness gradually decreasing radially also has a good disturbance guiding effect. When compressed gas is injected, the gradually deformed cavity guides the disturbed airflow to diffuse evenly from the center outwards, allowing the airflow to more fully cover the bottom area of ​​the residue, enhancing the disturbance depth and the release effect of the liquid, which helps to completely discharge the residual liquid and effectively compact the residue. This arc-shaped compression cavity also possesses certain buffering and transition characteristics in its structure and function. Compared to a flat-bottom structure, the arc-shaped bottom can more gently disperse the direct impact of the slag pressing plate 13 or the residue on the leakage hole 122, effectively preventing the leakage hole 122 from being blocked or damaged due to instantaneous concentrated stress, thereby improving the service life of the drainage system and the overall operational stability. In summary, this arc-shaped compression cavity structure has multiple functional advantages, including liquid diversion, residue concentration, disturbance guidance, and structural buffering. It not only improves the synergistic efficiency of slag pressing and drainage but also enhances the long-term stability and sealing of the equipment, demonstrating good engineering adaptability and application promotion value.

[0033] It should be noted that, to ensure that the pressing disc 13 can apply sufficient and effective compressive force to the dregs, the maximum thickness at the center of the compression chamber in this embodiment is controlled within 5 mm. The compression chamber thickness refers to the vertical distance between the bottom surface of the arc-shaped cavity 123 at the bottom of the second opening 121 and the bottom of the pressing barrel 12, i.e., the vertical height of the compression chamber at its center. Furthermore, this compression chamber thickness is the vertical distance when the bottom of the pressing disc 13 contacts the bottom of the arc-shaped cavity 123 under empty pressure (i.e., without dregs). This thickness limitation has significant technical implications: if the gap is too large, the pressing disc 13 will not be able to fully adhere to the dregs during the pressing process, resulting in insufficient and loose compression of the dregs, directly affecting the pressing effect and causing problems such as residual liquid and incomplete drainage. Meanwhile, the mechanical force during the pressing process is difficult to effectively transmit to the bottom of the pressing tank 12, weakening the dehydration efficiency. Furthermore, an excessively large vertical cavity may cause the injected compressed gas to diffuse ineffectively within the cavity, reducing the disturbance effect and decreasing the synergistic effect of residue disturbance and residual liquid release. Therefore, by reasonably limiting the thickness of the compression chamber center to within 5mm, it is ensured that the pressing disc 13 can adhere to the residue and apply sufficient pressure during the final stroke, while also reserving necessary buffer space for gas disturbance and liquid diversion. This achieves an effective balance between pressing force and disturbance efficiency, significantly improving the compaction degree of the residue and the thoroughness of liquid discharge, contributing to the efficient, stable, and clean operation of the overall dehydration process.

[0034] Reference Figure 4 As shown, in an optional embodiment of the present invention, a plurality of vent holes 1321 are arranged in a ring at the bottom of the slag pressing plate 13, and a plurality of drain holes 122 are disposed in the central region of the bottom of the second opening 121, and the projection of the vent holes 1321 onto the bottom of the second opening 121 is located around the drain holes 122.

[0035] Specifically, by arranging multiple vent holes 1321 at the bottom of the slag pressing plate 13 in a ring, and with the vent holes 1321 positioned around the drain holes 122 distributed in the central area of ​​the bottom of the second opening 121 when projected axially onto the bottom of the second opening 121, this structural configuration, in conjunction with the arc-shaped cavity 123 at the bottom of the second opening 121, optimizes the drainage path and ensures the structural strength of the bottom area, resulting in significant advantages in descaling efficiency and durability, and forming a good descaling flow guiding and pressure bearing system. Specifically, to ensure the mechanical strength and pressure resistance of the overall structure of the slag pressing tank 12 under repeated high-intensity extrusion operations, this device preferably places the drain holes 122 in the central area of ​​the bottom of the slag pressing tank 12. This area, located at the lowest point of the arc-shaped cavity 123, has the thickest structure and uniform stress distribution. It can effectively withstand the concentrated pressure from the slag pressing plate 13 and the drug residue, helping to avoid problems such as bottom collapse, cracking, or stress concentration fatigue, thereby significantly improving the durability and safety stability of the device. Furthermore, the exhaust port 1321 is arranged in a ring around the leakage port 122. When compressed gas is injected, it can preferentially cover the drug residue area around the leakage port 122, forming an airflow path of "surround disturbance and centripetal guidance". Combined with the structural feature of the compression cavity gradually thinning from the center to the edge, the injected high-pressure gas naturally forms a disturbance trend from the outside to the inside of the cavity. This not only effectively drives the residual drug liquid in the surrounding areas to converge and be discharged from the center, but also strengthens the compaction of the loose drug residue in the central area, improving the thoroughness of drainage. This disturbance path is consistent with the liquid drainage direction, establishing a highly coordinated flow mechanism between the downward compression of the slag pressing plate 13, the disturbance injection of compressed gas, and the concentrated discharge from the leakage port 122. Compared to the traditional structure where the exhaust port 1321 is randomly arranged or corresponds disorderly to the leakage port 122, this projection optimization design further improves the utilization rate and disturbance efficiency of compressed gas, and reduces the possibility of liquid retention and residue.

[0036] Furthermore, this arrangement avoids the risk of high-pressure compressed gas directly blowing into the leakage hole 122, preventing liquid splashing, foam generation, or gas-liquid entrainment caused by excessive disturbance, thus ensuring the cleanliness of the dewatering process and the stability of the effluent. In summary, the corresponding arrangement of the annular vent hole 1321 and the central leakage hole 122 not only achieves the synergistic effect of force, gas, and liquid in the slag pressing area, but also demonstrates excellent performance in terms of structural strength, drainage speed, and operational stability, showing good engineering practicality and promising prospects for widespread application.

[0037] Reference Figure 4 As shown, in an optional embodiment of the present invention, the compression chamber extends radially from the center of the second opening 121 to the exhaust port 1321.

[0038] Specifically, in this embodiment, the compression chamber extends radially from the central region of the second opening 121 to the location of the exhaust port 1321, forming a gradually changing disturbance space structure. Preferably, the thickness of the compression chamber within this range is controlled between 1mm and 3mm, that is, the vertical distance between the arc-shaped cavity 123 at the bottom of the second opening 121 and the bottom of the slag barrel 12 is maintained within the above range. This achieves efficient coordination between the gas disturbance path, flow field diffusion capability, and liquid removal guidance effect while ensuring the disturbance effect and structural stability. The thickness range of 1mm to 3mm can provide suitable disturbance space for the injected compressed gas in practical applications. If the thickness is too small (less than 1 mm), it will severely restrict the lateral diffusion path of the gas in the compression chamber, resulting in insufficient disturbance range and the airflow not easily reaching the residue area near the exhaust port 1321, thereby reducing the gas's auxiliary dehydration effect; while if the thickness is too large (more than 3 mm), although the disturbance range increases, the end stroke of the slag pressing plate 13 will be suspended, making it difficult to form sufficient slag pressing force, resulting in the residue not being pressed tightly, the liquid residue increasing, and the structural stability decreasing, increasing the risk of deformation during the slag pressing process.

[0039] It is worth mentioning that the minimum thickness is controlled at 1mm. This ensures that even in extreme cases where the amount of residue is small and the pressing plate 13 is pressed to the bottom of the arc-shaped cavity 123, sufficient space for gas disturbance can still be maintained. This ensures that the compressed gas is injected smoothly and diffuses effectively, thereby maintaining a good auxiliary drainage effect and preventing the disturbance cavity from being completely closed, which would cause airflow blockage. This effectively prevents the pressing plate 13 from directly contacting the bottom of the second opening 121. It also prevents the compressed air injected into the exhaust port 1321 during the gas compression process from having insufficient diffusion space and thus not excessively reacting to the pressing plate 13 body and the exhaust port 1321 structure. This reduces the risk of component damage and ensures the safe and stable operation of the device.

[0040] Secondly, the gradual change in thickness of the compression chamber from the center outwards to the vent 1321 creates a natural gas guiding channel. This allows the injected high-pressure gas to diffuse radially outwards along the bottom of the chamber, reaching the vent 1321 area and forming a comprehensive covering disturbance. Simultaneously, it reduces or prevents the leakage of compressed gas and liquid from the connection between the slag pressing plate 13 and the inner wall of the second opening 121. This structure ensures strong bottom adhesion and stability of the airflow as it passes through the vent 1321, significantly improving the disturbance depth of the slag at the vent 1321 and the residual liquid release efficiency. Finally, the annular arrangement of the vent 1321 and the vertical downward pressing action of the slag pressing plate 13, combined with the 1mm-3mm compression chamber thickness, not only provides sufficient space for disturbance but also ensures a smooth exhaust path, uniform disturbance, and structural stability without affecting mechanical slag pressing. This further enhances the liquid-slag separation effect and improves the cleanliness of the discharged liquid and the residual liquid removal rate.

[0041] Reference Figure 4 As shown, in an optional embodiment of this invention, the density of the plurality of leakage holes 122 gradually decreases radially from the center of the second opening 121 toward the vent hole 1321. Specifically, in this embodiment, the multiple leakage holes 122 are designed with a density that gradually decreases radially from the center of the second opening 121 towards the vent hole 1321, forming a gradient pore density distribution layout. The higher density leakage holes 122 are concentrated in the central region of the second opening 121. This not only effectively ensures that the liquid can be discharged quickly and fully from the center, avoiding liquid accumulation and stagnation in this area, but also greatly improves the overall drainage efficiency and smoothness. The high pore density design in the central region makes the liquid discharge channel more unobstructed, reducing the risk of liquid backflow and blockage, and ensuring stable drainage performance of the device during long-term operation. At the same time, the gradually decreasing pore density layout radially outwards effectively enhances the structural strength of the outer region, avoiding problems such as insufficient strength, deformation, or damage to the bottom of the slag tank 12 due to excessive holes, thereby ensuring the durability and operational stability of the entire device.

[0042] Secondly, the lower density of the leakage holes 122 in the area adjacent to the vent holes 1321 effectively limits the possibility of a large amount of compressed gas escaping through the holes during injection, ensuring that the high-pressure airflow can smoothly diffuse radially to the central residue area of ​​the second opening 121. This design fully utilizes the disturbance effect of the compressed gas, promoting the loosening and rapid flow of liquid inside the residue, significantly improving the slag pressing efficiency and residual liquid removal effect. In addition, to further optimize the synergistic effect of drainage performance and gas disturbance, the diameter of the leakage holes 122 in the central area at the bottom of the second opening 121 can be appropriately increased to expand the liquid discharge channel area, reduce flow resistance, and achieve a faster and smoother liquid discharge process. Conversely, reducing the diameter of the leakage holes 122 in the outer area at the bottom of the second opening 121 limits the possibility of a large amount of compressed gas escaping through the holes during injection, effectively ensuring that the high-pressure airflow can smoothly diffuse along the compression chamber to the central residue area of ​​the second opening 121. This approach not only improves the efficiency of liquid discharge, but also takes into account the overall strength of the device structure and the effective coverage of gas disturbances, ultimately forming a highly efficient and stable liquid-sludge separation system, significantly improving the performance and application value of the device.

[0043] To ensure efficient drainage while maintaining material conservation and structural strength, the drainage hole 122 in the central area of ​​the bottom of the slag pressing tank 12 in this embodiment adopts a drainage structure design with multiple supporting ribs fixing the screen. This structure, by creating a through hole at the drainage hole 122 and installing several radially or staggered supporting ribs at the through hole, stably fixes the screen. This not only effectively supports the concentrated pressure of the slag during the pressing process, preventing screen deformation, sinking, or damage, but also significantly reduces the weakening effect of the overall hole area on the bottom structural strength. Simultaneously, the screen aperture can be optimized according to actual drainage requirements, efficiently filtering residue and debris to prevent clogging while ensuring smooth flow of the liquid. This is a structural optimization form that combines material conservation, reliability, and efficient drainage.

[0044] Reference Figure 4 and Figure 5 As shown, in an optional embodiment of this utility model, a one-way valve 16 is provided on each of the multiple vent holes 1321. The one-way valve 16 is used to prevent the liquid in the dregs from flowing back into the vent holes 1321.

[0045] In this embodiment, a one-way valve 16 is provided on each of the multiple vent holes 1321. Its function is to effectively prevent the liquid medicine released during the pressing process from flowing back into the vent holes 1321, thereby constructing a crucial liquid-gas isolation barrier. This structural design not only optimizes the cleanliness and stability of the gas channel but also significantly improves the operational reliability and service life of the entire device.

[0046] Specifically, during the slag pressing process, as the pressing plate 13 is pressed down and compressed gas is injected, the slag rapidly releases a large amount of residual liquid. If the vent 1321 is not protected, the liquid can easily seep back into the gas channel through the vent 1321 under pressure fluctuations or localized liquid accumulation, causing blockage of the exhaust path, reduced airflow efficiency, and potentially leading to gas channel contamination and system corrosion. By setting a one-way valve 16, compressed gas can enter the slag pressing area from the gas pipe in only one direction, and the liquid cannot seep back into the gas pipe system even under high pressure, solving the backflow problem at its source and effectively ensuring the long-term stable operation of the equipment.

[0047] Secondly, once the medicinal liquid enters the exhaust system, it is prone to residue, deposition, or corrosion in the exhaust port 1321 or pipeline. This is especially true for traditional Chinese medicine liquids, which contain abundant organic components and fine particles, easily causing scale buildup on the valve body, blockage of the channels, and even microbial growth, affecting the hygiene of the device and the safety of the gas system. The one-way valve 16 significantly reduces these potential risks, ensuring that the device maintains good sealing and cleanliness even after repeated use. Finally, the one-way valve 16 is compact, inexpensive, and has automatic response characteristics. It automatically opens with the injection of compressed gas and automatically closes after gas supply stops, requiring no additional drive or manual control, thus combining practicality and economy.

[0048] In this process, due to the high-pressure environment during slag pressing, a check valve 16 with good pressure resistance and sealing performance is preferably installed on the vent port 1321 to improve the reliability and cleanliness of the exhaust system. A spring-loaded or diaphragm-type check valve 16, which is sensitive to opening and closing, highly corrosion-resistant, and suitable for gas-liquid interface conditions, can be selected. This type of structure can quickly open when the compressed gas reaches the set opening and closing pressure, ensuring smooth gas flow into the slag area; and when the gas source is shut off or the liquid generates back pressure, it can quickly close the valve body using the reverse pressure to prevent liquid backflow into the vent port 1321. Through reasonable selection and matching of sealing materials, this type of check valve 16 can adapt to high-pressure pulse operation conditions, effectively improving the system's anti-pollution capability and operational stability. It should be noted that the above-mentioned type of check valve 16 is a preferred structure; the specific type and configuration can be flexibly adjusted according to the application scenario and cost control, and are not considered as the only limitation.

[0049] Reference Figure 4 As shown, in an optional embodiment of this utility model, a buffer chamber 133 is provided inside the slag pressing plate 13, and the compressed air pipe 14 and multiple exhaust holes 1321 are all connected to the buffer chamber 133.

[0050] Specifically, in this embodiment, a buffer chamber 133 is provided inside the slag pressing plate 13, and the compressed gas pipe 14 and multiple exhaust ports 1321 are uniformly connected to the buffer chamber 133, constructing a highly efficient, pressure-stabilized, and uniformly injected gas disturbance system. The buffer chamber 133, acting as a "transfer and accumulation zone" after the compressed gas enters, can temporarily store a certain volume of high-pressure gas, effectively balancing the pressure before entering each exhaust port 1321, preventing uneven disturbance caused by single-point injection or sudden changes in flow rate, and ensuring the consistency and synchronicity of the airflow output from multiple exhaust ports 1321, thereby improving the comprehensiveness of slag disturbance and dehydration efficiency. Simultaneously, this structure also has a significant pressure-stabilizing and buffering function, capable of absorbing pulse fluctuations from the compressed gas source, preventing instantaneous high pressure from directly acting on the slag and causing splashing, rupture, or turbulence, ensuring the stability and controllability of the slag pressing process. The buffer chamber 133 also serves as a unified airflow distributor, significantly simplifying the gas pipe layout, optimizing the module structure, and avoiding the dead zone problem caused by uneven distribution of the exhaust holes 1321, further promoting uniform separation of liquid and slag. Overall, the design of the buffer chamber 133 has significant advantages in improving gas injection stability, enhancing disturbance effect, and strengthening structural adaptability, and is one of the key structures for achieving efficient and stable liquid deslagging.

[0051] Reference Figure 6-8 As shown, in an optional embodiment of this utility model, the slag pressing plate 13 includes a slag pressing base 131, an air injection plate 132, and a buffer air bag 134. The bottom of the slag pressing base 131 is provided with a third opening 1311, and the air injection plate 132 is provided with a fourth opening 1322 that is opposite to the third opening 1311. Multiple exhaust holes 1321 are provided on the air injection plate 132 and communicate with the fourth opening 1322. The air injection plate 132 is disposed in the third opening 1311, and a buffer cavity 133 is formed between the third opening 1311 and the fourth opening 1322. The buffer air bag 134 is disposed in the buffer cavity 133 and is connected to the compressed air pipe 14 and the multiple exhaust holes 1321.

[0052] Specifically, in this embodiment, the slag pressing plate 13 consists of a slag pressing base 131, an injection plate 132, and a buffer air bag 134. The bottom of the slag pressing base 131 has a third opening 1311 for placing the injection plate 132. The injection plate 132 has a fourth opening 1322 opposite to the third opening 1311, and multiple exhaust holes 1321 are disposed on the injection plate 132 and communicate with the fourth opening 1322. The injection plate 132 is embedded in the third opening 1311, forming an independent buffer cavity 133 between the third opening 1311 and the fourth opening 1322. The buffer air bag 134 is placed in this buffer cavity 133 and is simultaneously connected to the compressed air pipe 14 and the multiple exhaust holes 1321, forming a highly efficient structure integrating pressure storage and gas distribution functions. By embedding the injection plate 132 into the third opening 1311 of the slag pressing base 131, modular integration of the buffer air cavity is achieved. This standardized assembly structure not only facilitates the separate manufacturing and rapid assembly of various components, but also effectively reduces production complexity and manufacturing costs, significantly improving the overall process controllability and production efficiency. Simultaneously, this design makes it easier to open the vent hole 1321 and the through-hole connecting the compressed air pipe 14 on the slag pressing base 131, simplifying the layout process of the vent hole 1321 and the air pipe, ensuring smooth airflow and a reasonable layout.

[0053] Secondly, the buffer chamber 133, as a relatively independent sealed space, achieves excellent airtightness of the system through the tight fit between the injection plate 132 and the slag pressing base 131, coupled with the wrapping of the flexible buffer airbag 134. Compared to directly using the buffer chamber 133 for gas storage, the buffer airbag 134 effectively ensures the gas tightness of the system, preventing compressed gas leakage and ensuring stable and efficient gas disturbance. Good sealing performance is crucial for improving the reliability of the gas injection process and maintaining the stability of system operation. The buffer airbag 134 preferably uses flexible materials such as ethylene propylene rubber (EPDM) with high elasticity, corrosion resistance, and high pressure resistance. It can repeatedly expand and contract under high pressure, absorbing pulse pressure and buffering airflow fluctuations. This not only significantly extends the service life of the device but also effectively regulates the gas injection rhythm, balances the gas pressure output, and avoids liquid splashing or uncontrolled disturbance caused by instantaneous excessive gas injection, ensuring the stability and accuracy of the entire slag pressing process. It should be noted that ethylene propylene rubber (EPDM) is a preferred material; the specific type and configuration can be flexibly adjusted according to the application scenario and cost control, and is not a unique limitation.

[0054] In summary, the slag pressing disc 13 structure, through the rational integration of the gas injection disc 132 and the buffer airbag 134, combines structural compactness and manufacturing convenience, significantly improving the system's sealing performance, airflow disturbance uniformity, and overall operational reliability. At the same time, it simplifies the process of opening the exhaust port 1321 and the through hole of the compressed air pipe 14. It is an ideal technical solution for achieving efficient and stable slag pressing and precise gas injection control, and has broad engineering application value and promotion prospects.

[0055] Reference Figure 9 As shown, in an optional embodiment of this utility model, the pressure tube 15 includes a fixed tube 151, a compression tube 152, an elastic element 153, and a limiting element 154. One end of the compression tube 152 is connected to the slag pressing plate 13, and the other end is slidably sleeved on the outside of the fixed tube 151. One end of the elastic element 153 extends into and is fixed on the inner wall of the compression tube 152, and the other end is disposed on the fixed tube 151. A limiting hole 1521 is opened on the side wall of the compression tube 152. The limiting element 154 is disposed on the fixed tube 151, and the limiting element 154 slides through the limiting hole 1521 to limit the movement range of the compression tube 152. When the elastic element 153 returns, it drives the compression tube 152 to reset.

[0056] Specifically, by designing the pressure pipe 15 as a relatively sliding fixed pipe 151 and a compression pipe 152, and setting an elastic element 153 to provide elasticity and a limiting element 154 to restrict the connection between the fixed pipe 151 and the compression pipe 152, a bidirectional controllable function of compaction and reset is achieved. It also demonstrates excellent engineering value in gas disturbance timing control, structural wiring integration, and slag pressing efficiency improvement. Compared with the traditional single-rod rigid slag pressing design, it has higher adaptability and control precision. Specifically, by cleverly utilizing the synergistic effect of the elastic element and the sliding limiting structure, this design dynamically divides the slag pressing process into two functionally distinct and progressively advancing slag pressing stages, corresponding to different slag states and gas injection requirements, achieving an organic integration of flexible disturbance and rigid compaction. The pressure pipe 15 preferably features a hollow central section, facilitating the centralized installation of the compressed gas pipe 14, exhaust control lines, etc., from inside the rod body, thereby significantly improving the neatness of the wiring and assembly efficiency, and optimizing the modular design logic. In applications where the pressure required for slag removal is relatively low, even the use of lightweight hollow pipe fittings is sufficient to meet the strength and rigidity requirements, further reducing the overall weight and manufacturing cost.

[0057] The device's structural design scientifically divides the slag pressing process into three stages, precisely matching the compressed gas injection rhythm of the vent 1321: The first stage is the flexible contact stage, where, when the slag pressing plate 13 initially presses down to contact the slag, under the elastic force of the elastic element 153, the compression pipe 152 can achieve buffered sliding outside the fixed pipe 151, and the limiting element 154 moves synchronously in the limiting hole 1521. During this stage, the slag is still in a loose state, allowing the pressure pipe 15 to undergo moderate deformation, preventing the vent 1321 from being compacted before gas injection, thus providing a sufficient injection window for compressed gas, allowing the turbulent airflow to fully enter the slag layer, effectively improving the initial efficiency of desliming. The second stage is the hard compaction stage. When the limiting element 154 abuts against the side of the limiting hole 1521 near the slag pressing plate 13, the limiting device plays a stopping role, the elastic element 153 loses its buffering function, and the compressive force is directly transmitted to the slag pressing plate 13 through the compression pipe 152 after the fixed pipe 151, achieving strong compaction of the slag. During this stage, the structure of the slag becomes denser, making it suitable to control the amount and number of compressed gas injections to avoid energy waste or disturbance failure. Depending on the actual characteristics of the slag, the system can perform 1 to 3 pressing-gas injection cycles to achieve full compression and efficient separation of the liquid slag. The third stage is the reset and decompression stage. When the slag pressing device is lifted at the end, the elastic element 153 drives the compression tube 152 to rebound through elastic recovery, and the limiting element 154 also slides back to the initial position of the limiting hole 1521 simultaneously, completing the self-reset process of the entire structure and preparing for the next slag pressing cycle.

[0058] The pressure in the pressure tube 15 is typically applied using the driving force of an external mechanical device. In an optional embodiment of this invention, pressure transmission is primarily achieved through the gripping of the fixed tube 151 by the robotic arm gripper 20. The robotic arm gripper 20, through precise and stable gripping movements, controls the movement and force application of the fixed tube 151, ensuring that the pressure tube 15 as a whole applies a uniform and controllable amount of pressure to the slag compaction plate 13, thereby efficiently completing the compaction of the slag. This design not only effectively simplifies the pressure transmission path and reduces energy loss and structural complexity caused by intermediate links, but also significantly improves operational flexibility and accuracy, facilitating seamless integration with various automated equipment and control systems. It meets the stringent requirements for efficient and stable slag compaction under complex working conditions, greatly enhancing the overall performance and reliability of the system. Besides the robotic arm gripper 20, pressure can also be applied through devices such as hydraulic cylinders and pneumatic cylinders. The above methods are merely one of the optional embodiments of this invention and do not constitute a limitation on the pressure application method.

[0059] It should be noted that by introducing an elastic element 153 between the fixed pipe 151 and the compression pipe 152, and cooperating with the limiting element 154 to set up a sliding structure, the introduction of the elastic element 153 gives the fixed pipe 151 and the compression pipe 152 a buffering capacity for relative sliding. This allows the entire pressure pipe 15 to have flexible response characteristics in the initial stage of slag pressing, dynamically adapting the slag pressing force according to the change in the density of the slag, preventing premature compaction of the slag due to rigid downward pressure and blockage of the vent hole 1321, and ensuring the smooth progress of the gas disturbance stage. At the same time, this sliding structure realizes segmented control of the slag pressing stroke through the limiting element 154, allowing the slag pressing process to naturally transition to the hard compaction stage. After reaching the preset pressing depth, rigid force transmission replaces the flexible buffer, thereby achieving a concentrated release of stronger pressing force. Finally, the restoring effect of the elastic element 153 during the lifting process drives the compression pipe 152 to automatically reset, improving the structural circulation efficiency and automation level. In summary, this structural design outperforms traditional rigid structures in terms of improved disturbance efficiency, desliming effect, device stability, and adaptability to multiple operating conditions. It is a highly efficient slag pressing solution that integrates flexible control and rigid execution. The elastic element 153, as a key buffer component in the sliding structure of the pressure tube 15, has a significant impact on overall performance due to the selection of its material and type. Commonly used materials for the elastic element 153 include rubber elastomers, silicone elastomers, polyurethane elastomers, and springs. Depending on the actual operating conditions, a single-material or composite elastic element 153 design can be selected to balance durability, elastic response speed, and chemical stability, ensuring that the pressure tube 15 achieves ideal buffering performance and lifespan during sliding, thereby improving the reliability and efficiency of the entire slag pressing system.

[0060] Reference Figure 9 As shown, in an optional embodiment of this utility model, it further includes a compressed air pump 17 and a plurality of sensors 18. The compressed air pump 17 is connected to the compressed air pipe 14, and the plurality of sensors 18 are disposed in the limiting hole 1521 and electrically connected to the compressed air pump 17. The limiting member 154 is used to trigger the sensors 18 to control the compressed air pump 17 to deliver compressed gas.

[0061] Specifically, the compressed air pump 17, as a gas supply device, can stably and efficiently deliver the required gas to the system, and is widely applicable in food processing and pharmaceutical preparation. In applications involving pharmaceutical solutions, commonly used gases include nitrogen and carbon dioxide. These gases not only effectively promote the stirring and removal of liquids, but also, to a certain extent, prevent the oxidation and deterioration of components in pharmaceutical solutions or food, extending product stability and shelf life. For example, nitrogen, due to its inert properties, is often used to create a protective atmosphere, reducing contact between oxygen and pharmaceutical solutions and lowering the risk of oxidation; carbon dioxide can inhibit microbial growth and improve hygiene and safety. The compressed air pump 17, in conjunction with these gas applications, not only improves processing efficiency and quality control, but also ensures product safety and functionality, making it a key technological piece of equipment in modern food and pharmaceutical processing.

[0062] The sensor 18 is disposed within the limiting hole 1521 and electrically connected to the compressed air pump 17. The limiting member 154 triggers the sensor 18 by moving, thereby achieving precise control over the compressed gas delivered by the compressed air pump 17. On the one hand, the limiting member 154 and sensor 18 achieve automated control of the gas injection timing, avoiding human error and ensuring close coordination between gas disturbance and slag pressing action, thus improving the system's response speed and operating efficiency. On the other hand, the cooperation between the sensor 18 and the limiting member 154 effectively prevents compressed gas from being injected too early or too late, optimizes the utilization rate of compressed air flow, improves the slag dewatering effect, and extends the service life of the equipment.

[0063] In this application scenario, commonly used sensors 18 include photoelectric sensors, Hall effect sensors, and microswitches. Photoelectric sensors detect the position of the limiting member 154 by the obstruction or reflection of a light beam, offering advantages such as fast response and non-contact detection, making them suitable for high-frequency motion monitoring. Hall effect sensors detect changes in the magnetic elements within the limiting member 154, achieving non-contact position detection; they are durable and suitable for harsh environments. Microswitches are directly actuated by the limiting member 154 through mechanical contacts, exhibiting a simple structure and low cost, making them suitable for applications where high precision is not required but reliable physical contact feedback is necessary. In practical use, as the limiting member 154 moves along the limiting hole 1521, it sequentially senses signals from the sensors 18. The sensors 18 then transmit feedback signals to the control system of the compressed air pump 17, controlling the start or stop of the compressed air pump 17 to ensure close synchronization between gas injection and the movement of the slag pressing plate 13, achieving precise control and high-efficiency operation.

[0064] Taking a microswitch as an example, when the pressure pipe 15 begins to contact the dregs, the limiting member 154 moves away from its initial position, first triggering the first microswitch (position 1) located on the side wall of the limiting hole 1521. This signal notifies the system that the pressure pipe 15 has entered the flexible contact stage, and the compressed air pump 17 begins to deliver compressed gas into the compressed air pipe 14 to achieve effective disturbance. Subsequently, as the pressure pipe 15 continues to press down, the limiting member 154 moves to the side of the limiting hole 1521 near the dregs pressing plate 13, triggering the second microswitch (position 2). At this time, the system recognizes it as the hard compaction stage, and the compressed air pump 17 can adjust the gas delivery pressure or pause gas injection to adapt to the dense state of the dregs. Through the segmented detection of this dual-point microswitch, the system can achieve precise control of the gas injection rhythm of the compressed air pump 17, ensuring that the gas injection timing is closely matched with the dregs pressing process, improving dregs pressing efficiency and equipment stability.

[0065] To ensure efficient operation and good cleanliness of the slag pressing device, the slag pressing device 10 provided by this utility model is typically equipped with a dedicated cleaning structure for timely maintenance and residue removal of the slag pressing plate 13 and its key components. This cleaning structure usually includes units such as scrapers, receiving trays, and nozzles, with a compact overall structure and convenient operation, contributing to maintaining equipment hygiene and stable operation. The scraper structure is mainly used to remove slag residue remaining on the surface of the pressing plate or slag pressing plate 13 after the slag pressing operation. Since slag residue is easily pressed onto the surface of the pressing plate during the compaction process, if not removed in time, it may dry and accumulate, causing equipment failure or the risk of cross-contamination between subsequent batches. The scraper can maintain appropriate contact with the surface of the pressing plate through mechanical or elastic structures, effectively scraping the surface of the pressing plate during the device return or cleaning phase, ensuring the cleanliness of the device after each operation.

[0066] To prevent scraped-off drug residue from splashing and polluting the surrounding environment, the cleaning structure is equipped with a receiving tray to collect residue and wastewater generated during scraping or rinsing, preventing contamination of the work platform. A drain outlet guides the cleaning wastewater out for centralized treatment, meeting the process requirements for clean operation of the equipment. Furthermore, the accompanying nozzle structure can be deployed on the side wall of the pressing plate 13 or the top of the pressing plate according to cleaning needs. By spraying clean water or cleaning fluid, it quickly rinses areas where residue accumulates, further improving cleaning efficiency and completeness. The combined use of the receiving tray and nozzles significantly reduces the manual labor intensity of daily maintenance and cleaning work, improving the overall hygiene management level of the equipment. In summary, the accompanying cleaning structure not only effectively removes residual drug residue generated during the pressing process and prevents pollution accumulation, but also facilitates the centralized collection and discharge of cleaning wastewater, greatly improving the maintainability and operational cleanliness of the equipment. This is a crucial design measure to ensure the long-term stable operation of the pressing device and compliance with pharmaceutical production hygiene standards.

[0067] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model by those skilled in the art should be included within the scope of protection of this utility model.

Claims

1. A slag pressing device for medicinal residue, characterized in that, The device includes a pressure pipe, a slag-pressing plate, a compressed air pipe, a leakage tank, and a slag-pressing container. The leakage tank has a first opening, and the slag-pressing container is disposed within the first opening with a distance between the bottom of the slag-pressing container and the bottom of the first opening. The slag-pressing container has a second opening and multiple leakage holes extending from the bottom of the second opening to the first opening. The slag-pressing plate is slidably disposed within the corresponding second opening and has multiple vent holes. The pressure pipe is connected to the top of the slag-pressing plate, and the compressed air pipe passes through the pressure pipe and connects to the multiple vent holes.

2. The dregs pressing device according to claim 1, characterized in that, The bottom of the second opening has an arc-shaped cavity, and the bottom of the arc-shaped cavity and the bottom of the slag pressing bucket form a compression cavity. The thickness of the compression cavity gradually decreases from the center of the second opening along the radial direction to the periphery.

3. The dregs pressing device according to claim 2, characterized in that, Multiple vent holes are arranged in a ring at the bottom of the slag pressing plate, and multiple leakage holes are located in the central area of ​​the bottom of the second opening, with the projection of the vent holes onto the bottom of the second opening located around the leakage holes.

4. The dregs pressing device according to claim 3, characterized in that, The compression chamber extends radially from the center of the second open cavity to the exhaust port.

5. The dregs pressing device according to claim 4, characterized in that, The density of the plurality of leakage holes gradually decreases radially from the center of the second opening towards the vent hole.

6. The dregs pressing device according to claim 5, characterized in that, Each of the vent holes is equipped with a one-way valve, which is used to prevent the liquid in the dregs from flowing back into the vent holes.

7. The dregs pressing device according to claim 1, characterized in that, The slag pressing plate is provided with a buffer chamber, and the compressed air pipe and the multiple exhaust holes are all connected to the buffer chamber.

8. The dregs pressing device according to claim 7, characterized in that, The slag pressing plate includes a slag pressing base, an air injection plate, and a buffer air bladder. The bottom of the slag pressing base has a third opening, and the air injection plate has a fourth opening opposite to the third opening. Multiple exhaust holes are opened on the air injection plate and communicate with the fourth opening. The air injection plate is disposed in the third opening, and the buffer cavity is formed between the third opening and the fourth opening. The buffer air bladder is disposed in the buffer cavity and is connected to the compressed air pipe and the multiple exhaust holes.

9. The dregs pressing device according to claim 1, characterized in that, The pressure tube includes a fixed tube, a compression tube, an elastic element, and a limiting element. One end of the compression tube is connected to the slag pressing plate, and the other end is slidably sleeved on the outside of the fixed tube. One end of the elastic element extends into and is fixed to the inner wall of the compression tube, and the other end is disposed on the fixed tube. A limiting hole is opened on the side wall of the compression tube. The limiting element is disposed on the fixed tube and slides through the limiting hole to limit the movement range of the compression tube. When the elastic element returns, it drives the compression tube to reset.

10. The dregs pressing device according to claim 9, characterized in that, It also includes a compressed air pump and multiple sensors. The compressed air pump is connected to the compressed air pipe, and the multiple sensors are disposed in the limiting hole and electrically connected to the compressed air pump. The limiting member is used to trigger the sensors to control the compressed air pump to deliver compressed gas.

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