Dustproof powder bag-breaking discharging platform

Abstract

The invention provides a dustproof powder bag breaking and discharging platform, and belongs to the technical field of machining. Comprising a platform body, a self-adaptive bag breaking mechanism arranged above the platform body, a discharging channel located below the self-adaptive bag breaking mechanism, a two-stage negative pressure dustproof system arranged around the discharging channel, and an intelligent control system electrically connected with the self-adaptive bag breaking mechanism and the two-stage negative pressure dustproof system. Through the arrangement of the self-adaptive bag breaking mechanism, a closed space formed by a flexible sealing curtain, a two-stage negative pressure system, a primary annular suction cover, a secondary dust collection cover and a dust treatment unit, dust generated in the bag breaking and discharging process can be effectively blocked and collected, the dust filtering efficiency reaches 99.97%, overflow and diffusion of the dust are greatly reduced, and the service life of the bag breaking machine is prolonged. Through a bag type recognition sensor and a self-adaptive bag breaking mechanism, the height of a tool rest, the angle of a blade, the speed and the bag breaking pressure can be adjusted, and a specification adaptation assembly can be rapidly replaced.

Description

Technical Field

[0001] This invention relates to the field of processing technology, and in particular to a dustproof powder bag breaking and unloading platform. Background Technology

[0002] In the production and processing of powder materials in industries such as chemicals, building materials, food, and pharmaceuticals, unloading powder from bags is a crucial step. Traditional methods for unloading powder from bags often rely on manual operation or semi-automated equipment. However, traditional equipment lacks effective sealing and dust control designs, easily generating large amounts of dust during the bag-breaking and unloading process. This not only leads to a harsh working environment and harms the health of operators but may also pose safety hazards such as dust explosions. Furthermore, dust dispersion causes material waste and fails to meet environmental protection requirements. Therefore, this application provides a dustproof powder bag-breaking and unloading platform to meet this need. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a dustproof powder bag breaking and unloading platform to solve the problem that traditional powder bag breaking and unloading methods mostly rely on manual operation or semi-automatic equipment, while traditional equipment lacks effective sealing and dust control design.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A dustproof powder bag breaking and unloading platform includes a platform body, an adaptive bag breaking mechanism disposed above the platform body, an unloading channel located below the adaptive bag breaking mechanism, a dual-stage negative pressure dustproof system surrounding the unloading channel, and an intelligent control system electrically connected to the adaptive bag breaking mechanism and the dual-stage negative pressure dustproof system. The adaptive bag breaking mechanism includes a liftable blade assembly and a bag type recognition sensor. The dual-stage negative pressure dustproof system includes a primary ring suction hood covering the bag breaking area and a secondary dust collection hood disposed at the outlet of the unloading channel. The primary ring suction hood and the secondary dust collection hood are connected to a dust treatment unit through a negative pressure pipeline.

[0006] Preferably, the platform body is provided with an inflatable flexible sealing curtain at its edge. The flexible sealing curtain contacts the outer contour of the ton bag to form a sealed space, and the flexible sealing curtain is automatically regulated by an air pressure sensor.

[0007] Preferably, the liftable blade assembly includes at least three sets of circumferentially distributed rotating blades and two sets of fixed bag-breaking blades. The blade angle of the rotating blades can be adjusted by a servo motor, and the fixed bag-breaking blades are provided with a pressure sensing module at their ends to avoid over-cutting the outer bag.

[0008] Preferably, the dust treatment unit includes a high-efficiency filter, a back-flushing cleaning device, and a dust recovery bin. The back-flushing cleaning device is linked to the intelligent control system and can automatically start pulse back-flushing when the filtration resistance reaches a preset threshold. The bottom of the dust recovery bin is equipped with a screw conveyor to send the recovered powder back to the unloading channel.

[0009] Preferably, the inner wall of the unloading channel is equipped with a low-frequency vibration device, the vibration frequency of which can be adaptively adjusted by an intelligent control system according to the material characteristics, and a weighing sensor is provided at the bottom of the unloading channel to achieve dynamic measurement.

[0010] Preferably, the intelligent control system includes a PLC controller, a touch screen operating interface, and an Internet of Things module, which can realize the time-series linkage control of bag breaking, unloading, and dust collection processes, and support remote status monitoring and fault diagnosis.

[0011] Preferably, it also includes a quickly replaceable specification adapter component, which includes unloading sleeves of different diameters and corresponding knife holder spacing adjustment components, enabling rapid switching between different packaging specifications from 25kg to 1000kg.

[0012] Preferably, the inner side of the primary ring suction hood is equipped with a dust concentration sensor and an LED lighting device. When the dust concentration exceeds the standard, the power of the negative pressure fan is automatically increased and an audible and visual alarm is triggered.

[0013] Preferably, the bottom of the platform body is provided with a cleaning interface and a self-cleaning nozzle. The self-cleaning nozzle cleans the unloading channel regularly with high-pressure airflow and cleaning fluid. The cleaning waste liquid can be recycled after filtration.

[0014] Preferably, the intelligent control system also integrates an energy consumption monitoring module, which can optimize the operating parameters of the negative pressure fan and vibration device according to real-time operating conditions, so as to minimize the energy consumption per unit unloading volume.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above solution, the adaptive bag breaking mechanism, the flexible sealing curtain forming a closed space, the dual-stage negative pressure system, the primary ring suction hood, the secondary dust collection hood and the dust treatment unit can effectively block and collect the dust generated during bag breaking and unloading, with a dust filtration efficiency of 99.97%, which greatly reduces dust overflow and diffusion.

[0017] With bag type recognition sensors and an adaptive bag breaking mechanism, the blade holder height, blade angle, speed, and bag breaking pressure can be adjusted, and there are quick-change specification adapter components. It can accurately handle ton bags and other packaging sizes from 25kg to 1000kg, and is compatible with packaging bags of different materials such as woven bags, kraft paper bags, etc. and sizes.

[0018] The pressure sensing module of the fixed bag-breaking blade can prevent excessive cutting that could damage the inner packaging or cause powder leakage. The precise parameter adjustment of the rotating blade assembly can adapt to materials of different thicknesses, ensuring a stable and safe bag-breaking process.

[0019] The self-cleaning system uses spiral nozzles to thoroughly flush the unloading channel, and the cleaning waste liquid can be recycled after filtration, reducing water waste; the dust recovery bin reintegrates the collected dust into the material flow, realizing resource reuse. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a dustproof powder bag breaking and unloading platform;

[0021] Figure 2 Another perspective view of the overall structure of the dustproof powder bag breaking and unloading platform;

[0022] Figure 3 A schematic diagram of the adaptive bag-breaking mechanism for a dustproof powder bag-breaking and unloading platform;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of a low-frequency vibration device and a weighing sensor for a dustproof powder bag breaking and unloading platform.

[0025] In the diagram: 1. Platform main body; 2. Adaptive bag breaking mechanism; 201. Liftable blade assembly; 202. Bag type recognition sensor; 203. Rotating blade assembly; 204. Fixed bag breaking blade; 205. Servo motor; 206. Pressure sensing module; 3. Unloading channel; 301. Low-frequency vibration device; 302. Weighing sensor; 4. Dual-stage negative pressure dustproof system; 401. Primary ring suction hood; 402. Secondary dust collection hood; 6. Intelligent control system; 601. PLC controller; 602. Touch screen operation interface; 603. Internet of Things module; 7. Dust treatment unit; 701. High-efficiency filter; 702. Back-blowing dust removal device; 703. Dust recovery bin; 8. Flexible sealing curtain; 9. Air pressure sensor; 10. Adaptor components; 101. Unloading sleeve; 102. Blade holder spacing adjustment component; 11. Dust concentration sensor; 12. Cleaning interface; 13. Self-cleaning nozzle.

[0026] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] The dustproof powder bag-breaking and unloading platform provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0028] like Figures 1-5 As shown, an embodiment of the present invention provides a dustproof powder bag-breaking and unloading platform, including a platform body 1. The platform body 1 is welded from high-strength steel, and its surface is treated with wear-resistant and anti-corrosion materials to ensure long-term resistance to the weight of the ton bag and operational impacts. An inflatable flexible sealing curtain 8, made of aging-resistant rubber, is installed on its edge and has an embedded annular airbag. When the ton bag is hoisted to a preset position on the platform, the intelligent control system 6 receives a signal from the position sensor and automatically starts the air pump to inflate the flexible sealing curtain 8. During inflation, the pressure sensor 9 monitors the pressure inside the curtain in real time. When the pressure reaches a preset value for fitting the outer contour of the ton bag (typically 0.2-0.3 MPa), the air pump stops working, forming a sealed space surrounding the bag-breaking area, effectively preventing dust from overflowing. If changes in the ton bag specifications lead to insufficient fit, the pressure sensor will trigger air replenishment or deflation adjustments to ensure a consistently stable sealing effect.

[0029] The bottom of the platform body 1 is also equipped with a cleaning interface 12 and a self-cleaning nozzle 13. The self-cleaning nozzle 13 is spirally distributed along the inner wall of the unloading channel 3. When the equipment reaches the preset cleaning cycle, or when it is manually triggered by the touch screen, the intelligent control system 6 opens the valve of the cleaning interface 12. High-pressure airflow or cleaning liquid is selected according to the material characteristics and sprayed out through the nozzle to flush the inner wall of the unloading channel 3 in all directions to remove residual powder. The waste liquid generated during cleaning is treated by the bottom filter device and can be recycled for the cleaning process to achieve water conservation.

[0030] The adaptive bag-breaking mechanism 2 is the core component for achieving precise bag breaking of different packaging sizes. It mainly consists of a liftable knife holder assembly 201 and a bag type recognition sensor 202. The bag type recognition sensor 202 is installed at the platform entrance. Through infrared scanning and image recognition technology, it quickly determines the size, material, and sealing position of ton bags or 25kg-1000kg packages and transmits the data to the intelligent control system 6.

[0031] The adjustable blade assembly 201 automatically adjusts its parameters based on bag type recognition results. It includes at least three circumferentially distributed rotating blade assemblies 203 and two fixed bag-breaking blades 204. The rotating blade assemblies 203 are driven by servo motors 205, enabling precise adjustment of the blade angle from 0-90° and the rotation speed from 50-300 r / min, adapting to packaging bag materials of different thicknesses, such as woven bags and kraft paper bags. The fixed bag-breaking blades 204 are made of high-strength alloy material, with a pressure sensing module 206 installed at the end. When the blade contacts the packaging bag and applies bag-breaking pressure, the pressure sensing module 206 monitors the pressure value in real time. If the pressure exceeds a preset threshold to avoid excessive cutting that could damage the inner packaging or cause powder leakage, the intelligent control system 6 will immediately control the blade assembly to stop feeding, ensuring a safe and controllable bag-breaking process.

[0032] The lifting function of the blade holder is achieved by an electric push rod. The lifting stroke can be adjusted within the range of 0-500mm according to the bag height, ensuring that the blade assembly and the bag-breaking blade are always aligned with the optimal bag-breaking position.

[0033] The dual-stage negative pressure dust control system 4, through its dual design of source dust control and end-of-pipe dust collection, minimizes dust diffusion. The primary ring suction hood 401, arranged in a ring, covers the area above the bag-breaking area. Combined with the sealed space formed by the flexible sealing curtain 8, it generates localized negative pressure at the moment of bag breaking. The negative pressure value can be adjusted by the intelligent control system 6, typically ranging from 50 to 100 Pa, directly sucking in most of the dust generated during bag breaking. A dust concentration sensor 11 and an LED lighting device are installed inside the primary ring suction hood 401. The dust concentration sensor 11 monitors the dust concentration inside the hood in real time, with a detection range of 0-1000 mg / m³. 3 When the concentration exceeds the preset safety value, such as 100 mg / m³ 3 At that time, a signal is immediately sent to the intelligent control system 6 to automatically increase the power of the negative pressure fan to enhance the air volume, and trigger the sound and light alarm device to remind the operator. The LED lighting device provides sufficient light source for the bag breaking area, and works with the camera to achieve visual monitoring.

[0034] The secondary dust collection hood 402 is installed at the outlet of the unloading channel 3 to capture secondary dust that may be generated during the falling of powder. The secondary dust collection hood 402 adopts a tapered structure design, which can enhance the local airflow speed and ensure efficient dust intake. The primary ring suction hood 401 and the secondary dust collection hood 402 are connected to the dust treatment unit 7 through a negative pressure pipeline with a smooth inner wall to reduce dust adhesion, forming a complete negative pressure dust prevention circuit.

[0035] The dust treatment unit 7 is a key component for dust purification and recovery. It includes a high-efficiency filter 701, a back-flushing cleaning device 702, and a dust recovery chamber 703. The high-efficiency filter 701 uses HEPA-grade filter media and has a filtration efficiency of up to 99.97% for dust particles with a diameter of ≥0.3μm, ensuring that the air emitted into the atmosphere meets environmental protection standards. The back-flushing cleaning device 702 is linked with the intelligent control system 6. When the pressure difference across the filter reaches a preset threshold, typically 500Pa, the system automatically activates the pulse back-flushing function. Compressed air is ejected at high speed through nozzles, shaking the dust adhering to the filter surface down to the dust recovery chamber 703 below.

[0036] The bottom of the dust recovery bin 703 is equipped with a screw conveyor. The recovered powder is transported to the unloading channel 3 via the screw conveyor and reintegrated into the material flow, realizing the resource utilization of dust and reducing material waste.

[0037] The unloading channel 3 adopts an inclined design with an inclination angle of 30-60°, which can be adjusted according to the material flowability. A low-frequency vibration device 301 is installed on the inner wall. The vibration frequency of the low-frequency vibration device 301 is 10-50Hz and the amplitude can be adaptively adjusted by the intelligent control system 6 according to the material characteristics such as particle size, humidity, and flowability, which effectively prevents the powder from agglomerating and blocking in the channel and ensures smooth unloading.

[0038] The bottom of the unloading channel 3 is equipped with a high-precision weighing sensor 302 with an accuracy of ±0.1kg, which can monitor the unloading weight in real time and transmit the data to the intelligent control system 6 to realize dynamic metering function. The metering data can be displayed and stored on the touch screen, or uploaded to the management platform through the Internet of Things module 603, which facilitates production statistics and management.

[0039] The intelligent control system 6 is based on a PLC controller 601, equipped with a touch screen operation interface 602 and an Internet of Things module 603. Operators can set parameters for processes such as bag breaking, unloading, and dust collection through the touch screen, such as the position of the blade holder, vibration frequency, and negative pressure value. The system has built-in multiple material handling modes, such as granular materials and powder materials, which can be called with one click. The system has a time-series linkage control function to ensure that the bag breaking, unloading, and dust collection processes operate in the optimal order to improve work efficiency.

[0040] The IoT module 603 supports remote status monitoring such as equipment operating parameters, dust concentration, and metering data, as well as fault diagnosis. When equipment malfunctions, such as motor overload or filter clogging, the system automatically sends alarm information to the administrator's mobile phone for timely handling. In addition, the system integrates an energy consumption monitoring module, which can statistically analyze the energy consumption data of equipment such as negative pressure fans and vibration devices in real time, and automatically optimize operating parameters based on real-time operating conditions such as material quantity and dust concentration to minimize energy consumption per unit unloading volume.

[0041] The equipment is also equipped with quick-change specification adapter components 10, including unloading sleeves 101 with different diameters of 100-500mm and corresponding knife holder spacing adjustment parts 102. When changing, simply loosen the fixing buckle to complete the component replacement in a short time, realizing quick switching between different packaging specifications of 25kg-1000kg to meet the needs of multi-variety production.

[0042] Working principle:

[0043] Material loading and sealing preparation: When the ton bag or other package of other specifications is placed on the platform body 1 by the hoisting equipment, the bag type recognition sensor 202 immediately scans and identifies the package and transmits data such as size and material to the PLC controller 601. At the same time, the intelligent control system 6 starts the inflation program of the flexible sealing curtain 8, and the air pressure sensor 9 adjusts the pressure in real time to make the sealing curtain fit tightly with the outer contour of the ton bag, forming a sealed bag-breaking space.

[0044] Adaptive bag breaking: Based on the bag type recognition result, the PLC controller 601 automatically adjusts the height of the liftable knife holder assembly 201, the angle of the rotating blade assembly 203, and the position of the fixed bag breaking blade 204. After the knife holder is lowered to the bag breaking position, the rotating blade assembly 203 rotates to cut the packaging bag, and the fixed bag breaking blade 204 assists in tearing open the seal. The pressure sensing module 206 monitors the cutting pressure in real time to avoid over-cutting. During the bag breaking process, the primary ring suction hood 401 is activated simultaneously to generate local negative pressure, which immediately sucks the dust generated during bag breaking into the negative pressure pipeline.

[0045] Negative pressure dust prevention and unloading: After the bag is broken, the powder falls through the unloading channel 3. At this time, the low-frequency vibration device 301 adjusts the vibration according to the material characteristics at a preset frequency to prevent the channel from being blocked. The secondary dust collection hood 402 is activated to capture secondary dust during the falling process. Together with the primary ring suction hood 401, the dust is transported to the dust treatment unit 7. The high-efficiency filter 701 purifies the dust, and the purified air meets the emission standards. The back-flushing dust removal device 702 regularly cleans the dust on the filter surface, and the recovered dust is sent back to the unloading channel 3 via a screw conveyor.

[0046] Dynamic metering and cleaning: During the unloading process, the bottom weighing sensor 302 measures the unloading weight in real time and displays the dynamic data on the touch screen. When the unloading is completed, the intelligent control system 6 shuts down the bag breaking mechanism and the negative pressure system, and the flexible sealing curtain 8 automatically releases air. If the cleaning cycle is reached, the self-cleaning nozzle 13 is activated to perform high-pressure cleaning on the unloading channel 3. The waste liquid is recycled after treatment.

[0047] Intelligent optimization and remote management: The system monitors the equipment's operating status, energy consumption, and dust concentration throughout the process. The energy consumption monitoring module optimizes the operating parameters of the negative pressure fan and vibration device to reduce unit energy consumption. At the same time, the IoT module 603 uploads the operating data to the remote platform, supporting remote monitoring and fault diagnosis to ensure stable and efficient equipment operation.

[0048] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand this invention even without these detailed descriptions.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dustproof powder bag breaking and unloading platform, characterized in that, The system includes a platform body (1), an adaptive bag breaking mechanism (2) located above the platform body (1), a discharge channel (3) located below the adaptive bag breaking mechanism (2), a dual-stage negative pressure dust prevention system (4) surrounding the discharge channel (3), and an intelligent control system (6) electrically connected to the adaptive bag breaking mechanism (2) and the dual-stage negative pressure dust prevention system (4). The adaptive bag breaking mechanism (2) includes a liftable knife holder assembly (201) and a bag type recognition sensor (202). The dual-stage negative pressure dust prevention system (4) includes a primary ring suction hood (401) covering the bag breaking area and a secondary dust collection hood (402) located at the outlet of the discharge channel (3). The primary ring suction hood (401) and the secondary dust collection hood (402) are connected to the dust treatment unit (7) through a negative pressure pipeline.

2. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The platform body (1) is provided with an inflatable flexible sealing curtain (8) at its edge. The flexible sealing curtain (8) contacts the outer contour of the ton bag to form a sealed space, and the flexible sealing curtain (8) is automatically inflated and deflated by a pressure sensor (9).

3. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The liftable blade assembly (201) includes at least three sets of circumferentially distributed rotating blades (203) and two sets of fixed bag-breaking blades (204). The blade angle of the rotating blades (203) can be adjusted by a servo motor (205). The fixed bag-breaking blades (204) are provided with a pressure sensing module (206) at their ends to avoid over-cutting of the outer bag.

4. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The dust treatment unit (7) includes a high-efficiency filter (701), a back-flushing cleaning device (702), and a dust recovery bin (703). The back-flushing cleaning device (702) is linked with the intelligent control system (6) and can automatically start pulse back-flushing when the filtration resistance reaches a preset threshold. The bottom of the dust recovery bin (703) is equipped with a screw conveyor to send the recovered powder back to the unloading channel (3).

5. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The inner wall of the unloading channel (3) is provided with a low-frequency vibration device (301). The vibration frequency of the low-frequency vibration device (301) can be adaptively adjusted by the intelligent control system (6) according to the material characteristics. The bottom of the unloading channel (3) is provided with a weighing sensor (302) to realize dynamic measurement.

6. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The intelligent control system (6) includes a PLC controller (601), a touch screen operation interface (602), and an Internet of Things module (603), which can realize the time-series linkage control of bag breaking, unloading, and dust collection processes, and support remote status monitoring and fault diagnosis.

7. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, It also includes a quick-change specification adapter component (10), which includes unloading sleeves (101) of different diameters and corresponding knife holder spacing adjustment components (102), enabling quick switching between different specifications of packaging from 25kg to 1000kg.

8. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The primary ring suction hood (401) is equipped with a dust concentration sensor (11) and an LED lighting device on its inner side. When the dust concentration exceeds the standard, the negative pressure fan power is automatically increased and an audible and visual alarm is triggered.

9. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The platform body (1) is provided with a cleaning interface (12) and a self-cleaning nozzle (13) at the bottom. The self-cleaning nozzle (13) cleans the unloading channel (3) regularly with high-pressure airflow and cleaning liquid. The cleaning waste liquid can be recycled after filtration.

10. The dustproof powder bag breaking and unloading platform according to claim 1, characterized in that, The intelligent control system (6) also integrates an energy consumption monitoring module, which can optimize the operating parameters of the negative pressure fan and vibration device according to real-time working conditions, so as to minimize the energy consumption per unit unloading volume.

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