Ton bag inlet mud collecting structure and dust-free ton bag feeding system

Abstract

The invention belongs to the technical field of industrial material automatic treatment, and discloses a ton bag inlet mud collecting structure and a dust-free ton bag feeding system. The ton bag sealing device comprises a ton bag hanging frame, a flow guide cover, a flexible sealing assembly and an anti-blocking vibration device. The ton bag hanging frame is used for fixing ton bags. The flow guide cover is arranged below the ton bag hanging frame, the sectional area of a feeding port of the flow guide cover is larger than that of a discharging port, and the feeding port is used for being connected to a discharging port of a ton bag. The flexible sealing assembly comprises a flexible sealing curtain and a pneumatic locking structure, the flexible sealing curtain is arranged on the inner wall of the feeding port and used for being connected with the outer wall face of a discharging port of the ton bag in a sealed mode, and a sealing locking part of the pneumatic locking structure is arranged on the inner wall, close to the feeding port, of the flow guide cover in a contractible mode. The pneumatic locking structure is located on the side, close to the discharging opening, of the flexible sealing curtain and used for clamping and sealing the ton bag discharging opening to the feeding opening of the flow guide cover; the anti-blocking vibration device is arranged on the periphery of the flow guide cover so as to reduce dust leakage and improve the dust utilization rate.

Description

Technical Field

[0001] This invention relates to the field of automated industrial material handling technology, and in particular to a ton bag inlet mud collection structure and a dust-free ton bag feeding system. Background Technology

[0002] A ton bag dust-free feeding system typically includes a feeding device, ton bag support, hopper, and dust removal equipment. It is used for unpacking, unloading, and conveying powdery, granular, or small lump materials. These materials are widely used in industries such as chemical, pharmaceutical, food, plastics, and mining. However, traditional feeding methods easily generate dust, leading to environmental pollution, material waste, and health hazards to operators.

[0003] Traditional semi-automatic feeding equipment often employs a semi-automatic design, such as using an electric hoist to lift ton bags to the feeding rack, followed by manual unpacking and gravity unloading. While these devices are simple in structure, they suffer from problems like dust leakage, high reliance on manual labor, and low efficiency. For instance, some dust-free feeding stations require manual cutting open the bottom of the ton bags. Although vibration devices are installed to prevent material retention, manual intervention is still necessary during the unpacking process, and dust control relies on dust collection fans, meaning there is still a risk of dust generation in practical applications.

[0004] The fully automated intelligent ton bag feeding system achieves unmanned operation through steps such as robotic arm bag grabbing, automatic bag breaking, and vibration unloading. The material residue rate is ≤0.03%, and the bag grabbing success rate is ≥99.99%. Its core advantages lie in the fully enclosed feeding system and highly efficient automated process, but the equipment cost is relatively high, and it has high requirements for ton bag specifications and material flowability.

[0005] Some ton bag feeding systems also use vertical rail frames and ton bag turnover carts to achieve flexible equipment movement and precise positioning. For example, the rail frames and clamping devices work together to reduce the intensity of manual handling, but this does not completely solve the problem of dust escape caused by insufficient sealing.

[0006] Furthermore, existing technologies generally employ a closed structure combined with dust collection equipment. For example, one type of dust-free feeding equipment uses a sealed container, vibrating screen, and dust collection fan to intercept and recover dust, but the system is highly complex and has high maintenance costs. Another corrosion-resistant, fully sealed system uses a series design of a ton bag sealing hopper, an unpacking glove box, and a storage silo, combined with nitrogen protection and a filter dust collector, to achieve zero dust leakage and prevent material oxidation, but it has high nitrogen consumption and relies on frequent gas pressure balance adjustments.

[0007] In addition, some equipment supports feeding both ton bags and small bags, adapting to different packaging forms through adjustable bag clamps and modular interfaces, but the switching efficiency is low and the sealing performance is difficult to maintain.

[0008] Therefore, although existing technologies have made some progress in reducing dust pollution, the following technical problems still exist:

[0009] 1. Dust leakage problem: Traditional feeding systems may still generate dust leakage during the unpacking of ton bags and material feeding, leading to environmental pollution in the workshop.

[0010] 2. Low operational efficiency: Many existing systems rely on manual operation, which is labor-intensive, inefficient, and prone to human error.

[0011] 3. Material waste: During the feeding process, the material remaining in the ton bag is easy to spill, resulting in material waste.

[0012] Therefore, there is an urgent need for a new type of ton bag inlet sludge collection structure and a dust-free ton bag feeding system to solve the above-mentioned technical problems. Summary of the Invention

[0013] One objective of this invention is to provide a ton bag inlet mud collection structure that can reduce dust leakage and improve dust utilization and production efficiency.

[0014] To achieve this objective, the present invention adopts the following technical solution:

[0015] The sludge collection structure at the ton bag inlet includes:

[0016] Ton bag hanging rack, the above-mentioned ton bag hanging rack is used to fix ton bags;

[0017] A flow guide is provided below the ton bag hanging frame. The flow guide has an inlet and an outlet that are arranged opposite to each other. The cross-sectional area of ​​the inlet is larger than that of the outlet. The inlet is used to connect to the unloading port of the ton bag, and the outlet can be connected to a conveying device.

[0018] A flexible sealing assembly, comprising a flexible sealing curtain and a pneumatic locking structure, wherein the flexible sealing curtain is disposed on the inner wall of the feed inlet and is used to seal and connect with the outer wall of the discharge port of the ton bag; the sealing and locking part of the pneumatic locking structure is retractably disposed on the inner wall of the flow guide near the feed inlet and located on the side of the flexible sealing curtain near the discharge port; the pneumatic locking structure is used to clamp and seal the discharge port of the ton bag to the feed inlet of the flow guide.

[0019] An anti-clogging vibration device is disposed on the outer periphery of the aforementioned guide shield, and the aforementioned anti-clogging vibration device is used to vibrate and beat the aforementioned guide shield.

[0020] Optionally, the above-mentioned flexible sealing curtain includes:

[0021] An inflatable sealing ring is disposed on the inner wall of the feed inlet.

[0022] Several silicone skirts are provided, one end of which is evenly distributed inside the inflatable sealing ring, and the other end of which extends toward the central axis of the flow guide to form a contact portion, which can abut against the outer wall surface of the discharge port of the ton bag.

[0023] Optionally, the above-mentioned pneumatic locking structure includes:

[0024] A pneumatic drive component is disposed on the aforementioned air deflector.

[0025] Multiple grippers are arranged circumferentially on the inner wall of the flow guide and spaced apart from the inner wall of the flow guide to form an installation space. The discharge port of the ton bag can be inserted into the installation space. The grippers are connected to the pneumatic drive unit, which drives the grippers to move toward the inner wall of the flow guide to press the discharge port of the ton bag onto the inner wall of the flow guide.

[0026] Optionally, the gripper is provided with a flexible element on the side facing the inner wall of the flow guide.

[0027] Optionally, the aforementioned ton bag hanging frame includes a frame and a locking component, wherein the locking component is disposed on the frame and is used to fix the aforementioned ton bag.

[0028] Another objective of this invention is to provide a dust-free ton bag feeding system that can reduce dust leakage and improve dust utilization and production efficiency.

[0029] To achieve this objective, the present invention adopts the following technical solution:

[0030] The dust-free ton bag feeding system includes a negative pressure dust removal mechanism, a conveying mechanism, an atomizing spray mechanism, and the aforementioned ton bag inlet mud collection structure;

[0031] The discharge port of the aforementioned ton bag inlet mud collection structure is connected to the aforementioned conveying mechanism, which is used for conveying materials.

[0032] The aforementioned atomizing spray mechanism is installed inside the aforementioned guide hood of the aforementioned ton bag inlet mud collection structure, and the aforementioned atomizing spray mechanism is used to wet the material;

[0033] The aforementioned negative pressure dust removal mechanism is connected to the side wall of the aforementioned guide hood near the aforementioned feed inlet, and the aforementioned negative pressure dust removal mechanism is used to create a negative pressure at the top of the aforementioned guide hood.

[0034] Optionally, the negative pressure dust removal mechanism includes a cyclone separator, a venturi tube, a filter element, and a centrifugal fan connected in sequence. The cyclone separator is connected to the side wall of the guide shroud near the feed inlet for primary separation of dust. The venturi tube is used for pre-condensation of dust. The filter element is used for filtering dust. The centrifugal fan is used to generate negative pressure.

[0035] Optionally, it also includes a positive pressure compensation mechanism, which is connected between the guide shroud and the conveying mechanism. The positive pressure compensation mechanism is used to compensate for the pressure inside the guide shroud and to form positive pressure at the bottom of the guide shroud.

[0036] Optionally, it also includes a backflushing mechanism, which is connected to the flow guide shroud and is used to backflush and clean the ton bag after feeding.

[0037] Optionally, it also includes a control mechanism, wherein the aforementioned ton bag inlet sludge collection structure, the aforementioned negative pressure dust removal mechanism, the aforementioned conveying mechanism and the aforementioned atomizing spraying mechanism are all electrically connected to the aforementioned control mechanism.

[0038] The beneficial effects of this invention are:

[0039] This invention provides a ton bag inlet sludge collection structure and a dust-free ton bag feeding system. Through a double-layer seal of a flexible sealing curtain and a pneumatic locking structure, the ton bag's discharge port first passes through the flexible sealing curtain into the guide hood, and is inserted between the inner wall of the guide hood and the pneumatic locking structure. At this point, the flexible sealing curtain abuts against the outer wall of the ton bag, forming the first layer of dustproof sealing. Then, the sealing locking part of the pneumatic locking structure contracts towards the inner wall of the guide hood, causing the inner wall of the ton bag's discharge port to be abutted by the sealing locking part. This further tightens the outer wall of the ton bag, achieving contact between the wall surface at the ton bag's discharge port and the inner wall of the guide hood. This compression of the flexible sealing curtain against the inner wall of the guide hood forms the second layer of dustproof sealing. This double-layer sealing structure ensures that there are no open contact points throughout the entire process from hoisting to unloading of the ton bag, reducing the dust escape rate to 0.01%. In addition, an anti-clogging vibration device is installed to prevent material from accumulating inside the flow guide hood, ensuring continuous unloading and improving the reliability of the dust-free ton bag feeding system. Attached Figure Description

[0040] Figure 1 This is a cross-sectional view of the ton bag inlet mud collection structure provided in a specific embodiment of the present invention;

[0041] Figure 2 This is a top view of the flexible sealing curtain provided in a specific embodiment of the present invention;

[0042] Figure 3This is a front view of the dust-free ton bag feeding system provided in a specific embodiment of the present invention.

[0043] In the picture:

[0044] 10. Flow deflector; 11. Inlet; 12. Outlet;

[0045] 20. Flexible sealing assembly; 21. Flexible sealing curtain; 211. Inflatable sealing ring; 212. Silicone skirt; 22. Pneumatic locking structure; 221. Gripper;

[0046] 30. Vibration prevention device;

[0047] 100. Negative pressure dust removal mechanism; 200. Feeding hopper; 300. Vibrating screen; 400. Manual feeding port; 500. Sealing cover. Detailed Implementation

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0049] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0052] The following reference Figures 1 to 3 This invention introduces the sludge collection structure at the ton bag inlet and the dust-free ton bag feeding system.

[0053] Please refer to Figure 1 This embodiment provides a ton bag inlet sludge collection structure, which includes a ton bag suspension frame (not shown in the figure), a flow guide 10, a flexible sealing assembly 20, and an anti-clogging vibration device 30. The ton bag suspension frame is used to fix the ton bag; the flow guide 10 is located below the ton bag suspension frame and has an inlet 11 and an outlet 12 arranged opposite each other. The cross-sectional area of ​​the inlet 11 is larger than that of the outlet 12. The inlet 11 is used to connect to the unloading port of the ton bag, and the outlet 12 can be connected to a conveying device; the flexible sealing assembly 20 includes a flexible sealing curtain 21 and a pneumatic locking structure 22. The flexible sealing curtain 21 is disposed on the inner wall of the inlet 11, providing a flexible and tight seal. The sealing curtain 21 is used to seal the outer wall of the unloading port of the ton bag. The sealing and locking part of the pneumatic locking structure 22 is retractably set on the inner wall of the guide shroud 10 near the feed inlet 11 and is located on the side of the flexible sealing curtain 21 near the discharge port 12. The pneumatic locking structure 22 is used to clamp and seal the unloading port of the ton bag to the feed inlet 11 of the guide shroud 10. The anti-blocking vibration device 30 is set on the outer periphery of the guide shroud 10 and is used to vibrate and beat the guide shroud 10.

[0054] In this embodiment, the ton bag inlet mud collection structure uses a double-layer seal of flexible sealing curtain 21 and pneumatic locking structure 22. The ton bag's discharge port first passes through the flexible sealing curtain 21 into the flow guide shroud 10, and is inserted between the inner wall of the flow guide shroud 10 and the pneumatic locking structure 22. At this point, the flexible sealing curtain 21 abuts against the outer wall of the ton bag, forming the first layer of dustproof sealing structure. Then, the sealing locking part in the pneumatic locking structure 22 contracts towards the inner wall of the flow guide shroud 10, causing the inner wall of the ton bag's discharge port to be abutted by the sealing locking part. This further tightens the outer wall of the ton bag, achieving contact between the wall surface at the ton bag's discharge port and the inner wall of the flow guide shroud 10. This compresses the flexible sealing curtain 21 against the inner wall of the flow guide shroud 10, forming the second layer of dustproof sealing structure. The double-layer sealing structure ensures that there are no open contact points throughout the entire process from hoisting to unloading of the ton bags, reducing the dust escape rate to 0.01%, thus minimizing dust leakage, improving material utilization, and increasing production efficiency. Furthermore, an anti-clogging vibration device 30 is installed to prevent material accumulation inside the guide hood 10, ensuring continuous unloading and improving the reliability of the dust-free ton bag feeding system.

[0055] In this embodiment, the ton bag hanging frame includes a frame body and a lifting structure. The bottom end of the frame body is connected to the ground, and the top end of the frame body is provided with a lifting structure for lifting and transporting ton bags.

[0056] Optionally, the hoisting structure may be an electric hoist, a lifting claw, or other similar structure, without specific limitations.

[0057] Furthermore, the ton bag hanging frame also includes a locking element, which is mounted on the frame and is used to secure the ton bag.

[0058] Specifically, the locking component is a snap fastener or a magnetic suction component. The corresponding ton bag is provided with a snap fastener or a magnetic suction component. The snap fastener is snapped into the snap fastener, and the magnetic suction component is attracted to the magnetic suction component, which further positions and fixes the ton bag, preventing the ton bag from shaking and spilling material, and improving the stability of the ton bag fixation.

[0059] Optionally, multiple locking components can be provided, with multiple locking components evenly distributed on the frame to secure various parts of the ton bag.

[0060] In this embodiment, the flow guide shroud 10 has a conical or horn-shaped structure so that the cross-sectional area of ​​the inlet 11 is larger than that of the outlet 12, thereby facilitating the entry of materials.

[0061] Optionally, the cross-sectional area of ​​the inlet 11 is larger than the cross-sectional area of ​​the unloading port of the ton bag, so that the unloading port of the ton bag can be installed at the inlet 11 of the flow guide shroud 10.

[0062] Optionally, the flow guide 10 may be made of stainless steel or wear-resistant polymer material to make the inner wall of the flow guide 10 smooth and reduce material adhesion.

[0063] Please refer to Figure 1 and Figure 2 In this embodiment, the flexible sealing curtain 21 includes an inflatable sealing ring 211 and several silicone skirts 212. The inflatable sealing ring 211 is disposed on the inner wall of the inlet 11. One end of each of the several silicone skirts 212 is evenly distributed on the inner side of the inflatable sealing ring 211, and the other end of each silicone skirt 212 extends toward the central axis of the guide shroud 10 to form a contact portion that can abut against the outer wall surface of the ton bag's discharge port. By using the inflatable sealing ring 211, the size of the sealing ring can be adjusted by air pressure to achieve dynamic sealing, making it adaptable to the sealing of ton bags of different specifications and easy to disassemble. The silicone skirts 212 provide dust protection for the inlet 11. When the silicone skirts 212 are inserted into the discharge port of the ton bag, they abut against the outer wall of the ton bag, thereby achieving dust protection.

[0064] Optionally, the silicone skirt 212 is provided with multiple parts, which has a certain degree of elasticity, thereby facilitating contact with the outer wall of the ton bag.

[0065] Optionally, the length of the silicone skirt 212 can be set according to actual needs, and is not specifically limited here. Preferably, the silicone skirts 212 arranged opposite to each other abut against each other, so that they completely cover the feed inlet 11, which improves the dustproof effect and prevents dust from escaping.

[0066] Optionally, the flexible sealing curtain 21 may be made of silicone rubber and filled with antistatic and abrasion-resistant materials to give it high elasticity and low friction.

[0067] Furthermore, the pneumatic locking structure 22 includes a pneumatic drive and multiple grippers 221. The pneumatic drive is disposed on the flow guide 10. The multiple grippers 221 are arranged circumferentially on the inner wall of the flow guide 10 and spaced apart from the inner wall of the flow guide 10 to form an installation space. The discharge port of the ton bag can be inserted into the installation space. The grippers 221 are connected to the pneumatic drive. The pneumatic drive is used to drive the grippers 221 to move toward the inner wall of the flow guide 10 to press the discharge port of the ton bag onto the inner wall of the flow guide 10, thereby locking the discharge port of the ton bag and making the seal between the ton bag and the flow guide 10 more stable.

[0068] Optionally, the inner wall of the flow guide shroud 10 is also provided with a groove, which is arranged opposite to the gripper 221 so that after the gripper 221 retracts into the inner wall of the flow guide shroud 10, its outer wall is flush with the inner wall surface of the flow guide shroud 10, so as to avoid obstruction of materials and also to facilitate the sealing and fixing of the ton bag discharge port.

[0069] Optionally, the pneumatic drive unit can be a cylinder or similar structure, without specific limitations. Of course, the number of pneumatic drive units can also be adapted to actual needs. For example, one pneumatic drive unit can be provided, driving the movement of multiple grippers 221 through a central push plate and connecting rod structure. Alternatively, multiple pneumatic drive units can be provided, each corresponding to a gripper 221, with each pneumatic drive unit synchronously driving the corresponding gripper 221 to lock the unloading port of the ton bag. It is understood that when the pneumatic drive unit needs to penetrate the inner wall of the guide shroud 10, a sealed connection must be maintained between the pneumatic drive unit and the guide shroud 10 to prevent gaps from causing dust leakage.

[0070] Optionally, the gripper 221 has a flexible component on the side facing the inner wall of the air guide shroud 10. This arrangement provides flexibility in the contact between the gripper 221 and the ton bag, preventing damage to the ton bag. Preferably, the flexible component is a sealing structure to further achieve a sealing effect on the ton bag.

[0071] Optionally, the flexible component is provided with anti-wear texture on the inner wall of the guide shroud 10 to prevent wear on the ton bag.

[0072] Optionally, the flexible component can be made of sealing materials such as fluororubber, EPDM (Ethylene Propylene Diene Monomer), or polyurethane to achieve both flexibility and sealing. No specific limitations are specified here.

[0073] Furthermore, the anti-clogging vibration device 30 is an eccentric wheel vibrator or a pneumatic beater, which can be used to beat and vibrate the guide shroud 10, so that the material inside the guide shroud 10 flows smoothly and does not accumulate.

[0074] Optionally, multiple anti-vibration devices 30 may be provided, and the multiple devices may be evenly distributed on the outside of the guide shroud 10 to improve the vibration uniformity of the guide shroud 10.

[0075] Please refer to Figure 3 This embodiment also provides a dust-free ton bag feeding system, which includes a negative pressure dust removal mechanism 100, a conveying mechanism, an atomizing spray mechanism, and a ton bag inlet mud collection structure as described in any of the above schemes; wherein, the discharge port 12 of the ton bag inlet mud collection structure is connected to the conveying mechanism, which is used for conveying materials; the atomizing spray mechanism is disposed inside the guide hood 10 of the ton bag inlet mud collection structure, and is used to wet the materials; the negative pressure dust removal mechanism 100 is connected to the side wall of the guide hood 10 near the feed inlet 11, and is used to create a negative pressure at the top of the guide hood 10.

[0076] By adopting the above structure, material conveying and dust removal for ton bag feeding are achieved, while reducing labor costs and improving production efficiency. Material feeding is carried out in a closed channel, with no material spillage, thus improving material utilization.

[0077] Specifically, the negative pressure dust removal mechanism 100 includes a cyclone separator, a venturi tube, a filter element, and a centrifugal fan connected in sequence. The cyclone separator is connected to the side wall of the guide hood 10 near the feed inlet 11 for primary dust separation. The venturi tube is used for pre-condensation of dust. The filter element is used for filtration of dust, and the centrifugal fan is used to create negative pressure. In use, the centrifugal fan is turned on to create negative pressure, thereby drawing dust from the guide hood 10 through the pipe into the cyclone separator for primary separation. Then, after pre-condensation by the venturi tube and filtration by the filter element, the dust is discharged to the next process.

[0078] The negative pressure dust removal mechanism 100 also includes a back-flushing structure located on top of the filter element. This back-flushing structure is used to clean the filter element, allowing it to be cleaned even when the dust-free ton bag feeding system is not in operation, thus extending the filter element's service life and consequently the service life of the negative pressure dust removal mechanism 100. For example, the back-flushing structure includes a gas storage structure, a dryer, a filter device, and a nozzle connected in sequence to clean the filter element and remove dust from it.

[0079] Optionally, the atomizing spray mechanism can use a commonly used atomizing spray device, which will not be elaborated here. The atomizing spray liquid can be made by mixing water and surfactants to reduce surface tension and improve the wetting performance of materials.

[0080] For example, the atomizing spray mechanism includes a storage tank, a high-pressure pump, a filtration system, and an atomizing nozzle connected in sequence. The storage tank is used to store the atomizing spray liquid, the high-pressure pump is used to deliver the atomizing spray liquid at a steady flow, the filtration system is used to filter the atomizing spray liquid to prevent the atomizing nozzle from becoming clogged, and the atomizing nozzle is disposed inside the flow guide shroud 10 for spraying the atomizing spray liquid.

[0081] Optionally, a screw conveyor or a flexible pipe connection can be used as the conveying mechanism to transport materials. The specific selection of the conveying mechanism can be further configured according to actual needs, and is not specifically limited here.

[0082] Furthermore, the dust-free ton bag feeding system also includes a positive pressure compensation mechanism, which is connected between the guide hood 10 and the conveying mechanism. The positive pressure compensation mechanism is used to compensate for the pressure inside the guide hood 10 and form a positive pressure at the bottom of the guide hood 10 to compensate for the internal pressure of the guide hood 10. Through the gradient airflow field of negative pressure at the top and positive pressure at the bottom, it is easier to guide dust to gather towards the negative pressure dust removal mechanism 100, thereby improving the dust removal effect to over 98%.

[0083] It is understandable that the existing positive pressure compensation mechanism can be used, as it only needs to perform positive pressure compensation, which will not be elaborated here.

[0084] For example, the positive pressure compensation mechanism includes an air source, a control valve, and a nozzle. The air source is used to supply airflow, the control valve is used to control the opening and closing of the positive pressure compensation mechanism, and the nozzle is used to eject airflow to achieve its positive pressure compensation function.

[0085] Furthermore, the dust-free ton bag feeding system also includes a back-blowing mechanism connected to the guide hood 10. The back-blowing mechanism is used to clean the ton bags after feeding. This configuration can clean the ton bags and the sludge collection structure at the ton bag inlet, improving the dust cleaning rate and reducing the residual amount to below 0.03%. Consequently, no dust will escape when the ton bags are disassembled, thus preventing environmental pollution.

[0086] Specifically, the backflushing mechanism includes a pulse valve, a venturi accelerator tube, and a swirling nozzle. By opening the pulse valve, airflow is ejected, and by the action of the venturi accelerator tube and the swirling nozzle, the airflow is accelerated, thereby cleaning the dust remaining on the inner wall of the ton bag and the guide hood 10.

[0087] It is understandable that the airflow used in the positive pressure compensation mechanism and the airflow used in the backflushing mechanism are both inert gases to avoid affecting the internal materials and improve the reliability of the dust-free ton bag feeding system.

[0088] Furthermore, the dust-free ton bag feeding system also includes a control mechanism. The ton bag inlet sludge collection structure, negative pressure dust removal mechanism 100, conveying mechanism, and atomizing spray mechanism are all electrically connected to the control mechanism. In addition, the positive pressure compensation mechanism and the back-flushing mechanism are also electrically connected to the control mechanism, which enables the control and monitoring of the dust-free ton bag feeding system.

[0089] Optionally, the control mechanism includes a controller, a dust sensor, a pressure sensor, and a touch screen. The controller is used to receive and issue commands, the touch screen enables human-machine interaction, the dust sensor is installed inside the flow guide shroud 10 to detect the internal dust situation, and the pressure sensor is installed inside the flow guide shroud 10 to detect the internal pressure situation.

[0090] Optionally, the controller is a PLC (Programmable Logic Controller), which can control various structures through communication connections with other structures. The specific structures are all common and will not be described in detail here.

[0091] The following reference Figures 1 to 3This document provides a detailed description of the dust-free ton bag feeding system. During feeding, the ton bag is first suspended and fixed on the ton bag hanging frame. Then, the unloading port of the ton bag is placed inside the inlet 11 of the guide hood 10 and sealed and fixed using the flexible sealing component 20. The negative pressure dust removal mechanism 100, anti-clogging vibration device 30, atomizing spray mechanism, and conveying mechanism are activated. Simultaneously, the control mechanism begins to operate, continuing until the ton bag unloading is complete. Finally, the back-blowing mechanism is controlled to back-blow the ton bag and guide hood 10, cleaning the dust and completing the feeding of the ton bag, thus reducing the dust emission rate.

[0092] In an optional embodiment, the dust-free ton bag feeding system further includes a feeding hopper 200, within which a ton bag inlet mud collection structure, a negative pressure dust removal mechanism 100, an anti-clogging vibration device 30, an atomizing spray mechanism, a positive pressure compensation mechanism, and a back-blowing mechanism are all disposed. Of course, in the dust-free ton bag feeding system with the feeding hopper 200, the feeding hopper 200 is connected to the discharge port 12 of the guide hood 10, and a conveying mechanism is disposed at the discharge port 12 of the feeding hopper 200 to achieve temporary storage of materials.

[0093] Optionally, a vibrating screen 300 is also provided at the bottom of the feeding bin 200, so that the vibrating screen 300 vibrates the feeding bin 200, preventing material from accumulating in the feeding bin 200, and also realizing the material transportation function of the conveying mechanism.

[0094] Furthermore, the feeding hopper 200 is also equipped with a manual feeding port 400 to enable manual feeding, thereby improving the adaptability of the cleanroom ton bag feeding system. Of course, when manual feeding is not required, the manual feeding port 400 needs to be sealed to avoid affecting the internal airtight environment. Optionally, a sealing cover 500 is also hinged to the manual feeding port 400. The sealing cover 500 is sealed to the manual feeding port 400, and after the sealing cover 500 is fixed on the manual feeding port 400, the inside of the feeding hopper 200 can be kept in a sealed space.

[0095] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A ton bag inlet mud collection structure, characterized in that, include: A ton bag hanging rack, used to fix ton bags; A flow guide (10) is provided below the ton bag hanging frame. The flow guide (10) has an inlet (11) and an outlet (12) arranged opposite to each other. The cross-sectional area of ​​the inlet (11) is larger than the cross-sectional area of ​​the outlet (12). The inlet (11) is used to connect to the unloading port of the ton bag, and the outlet (12) can be connected to the conveying device. A flexible sealing assembly (20) includes a flexible sealing curtain (21) and a pneumatic locking structure (22). The flexible sealing curtain (21) is disposed on the inner wall of the feed inlet (11) and is used to seal the outer wall of the discharge port of the ton bag. The sealing locking part of the pneumatic locking structure (22) is retractably disposed on the inner wall of the guide shroud (10) near the feed inlet (11) and located on the side of the flexible sealing curtain (21) near the discharge port (12). The pneumatic locking structure (22) is used to clamp and seal the discharge port of the ton bag to the feed inlet (11) of the guide shroud (10). Anti-blocking vibration device (30) is disposed on the outer periphery of the flow guide (10) and is used to vibrate and beat the flow guide (10).

2. The ton bag inlet mud collection structure according to claim 1, characterized in that, The flexible sealing curtain (21) includes: An inflatable sealing ring (211) is disposed on the inner wall of the feed inlet (11); A plurality of silicone skirts (212) are provided, one end of which is evenly distributed on the inner side of the inflatable sealing ring (211), and the other end of which extends toward the central axis of the flow guide (10) to form a contact portion, which can abut against the outer wall surface of the unloading port of the ton bag.

3. The ton bag inlet mud collection structure according to claim 1, characterized in that, The pneumatic locking structure (22) includes: A pneumatic drive unit is disposed on the flow guide (10); Multiple grippers (221) are arranged circumferentially on the inner wall of the flow guide (10) and spaced apart from the inner wall of the flow guide (10) to form an installation space. The discharge port of the ton bag can be inserted into the installation space. The grippers (221) are connected to the pneumatic drive unit, which drives the grippers (221) to move toward the inner wall of the flow guide (10) to press the discharge port of the ton bag onto the inner wall of the flow guide (10).

4. The ton bag inlet mud collection structure according to claim 3, characterized in that, The gripper (221) has a flexible component on the side facing the inner wall of the flow guide (10).

5. The ton bag inlet mud collection structure according to claim 1, characterized in that, The ton bag hanging frame includes a frame and a locking component. The locking component is disposed on the frame and is used to fix the ton bag.

6. A dust-free ton bag feeding system, characterized in that, Includes a negative pressure dust removal mechanism (100), a conveying mechanism, an atomizing spraying mechanism, and a ton bag inlet mud collection structure as described in any one of claims 1-5; The discharge port (12) of the ton bag inlet mud collection structure is connected to the conveying mechanism, which is used for conveying materials; The atomizing spray mechanism is located inside the guide hood (10) of the ton bag inlet mud collection structure, and the atomizing spray mechanism is used to wet the material; The negative pressure dust removal mechanism (100) is connected to the side wall of the flow guide hood (10) near the feed inlet (11), and the negative pressure dust removal mechanism (100) is used to create a negative pressure on the top of the flow guide hood (10).

7. The dust-free ton bag feeding system according to claim 6, characterized in that, The negative pressure dust removal mechanism (100) includes a cyclone separator, a venturi tube, a filter element and a centrifugal fan connected in sequence. The cyclone separator is connected to the side wall of the guide shroud (10) near the feed inlet (11) for primary separation of dust. The venturi tube is used for pre-condensation of dust. The filter element is used for filtering dust. The centrifugal fan is used to generate negative pressure.

8. The dust-free ton bag feeding system according to claim 6, characterized in that, It also includes a positive pressure compensation mechanism, which is connected between the flow guide (10) and the conveying mechanism. The positive pressure compensation mechanism is used to compensate the pressure inside the flow guide (10) and form a positive pressure at the bottom of the flow guide (10).

9. The dust-free ton bag feeding system according to claim 6, characterized in that, It also includes a backflushing mechanism, which is connected to the flow guide (10) and is used to backflush and clean the ton bag after feeding.

10. The dust-free ton bag feeding system according to claim 6, characterized in that, It also includes a control mechanism, and the ton bag inlet mud collection structure, the negative pressure dust removal mechanism (100), the conveying mechanism and the atomizing spray mechanism are all electrically connected to the control mechanism.

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