Pipeline assembly, dust collection device and material distribution system

Abstract

The utility model relates to the technical field of material weighing, in particular to a pipeline assembly, a dust collection device and a material distribution system. The pipeline assembly comprises a main pipeline and at least one first sub-pipeline, the first end of the main pipeline is used for being communicated with an exhaust port of the material mixing device, the second end of the main pipeline is used for being communicated with an inlet of the dust collector, and the two ends of the first sub-pipeline are connected to the main pipeline. The two ends of the first sub-pipeline are located between the first end and the second end of the main pipeline, an electromagnetic valve is arranged on the main pipeline, a first mechanical valve is arranged on the first sub-pipeline, and the inner diameter of the main pipeline is larger than that of the first sub-pipeline. The gas absorption capacity of the pipeline assembly can be adjusted according to the amount of the gas exhausted by the material mixing device, so that the stability of the pressure in the material mixing device is ensured, and the metering precision of a meter in the material mixing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material weighing, in particular to a pipeline assembly, a dust collection device and a material feeding system. Background Art

[0002] In the powder mixing and batching production process, it is necessary to measure the batching components. The material mixing device belongs to a sealed stirring space. In order to maintain good sealing performance of the equipment and reduce metal foreign matters generated by sealing friction, an air sealing method is adopted at the stirring shaft end of the material mixing device, which effectively prevents the generation of friction foreign matters. When the material mixing device is running, there is generally compressed air of 0.5 bar continuously input into the rotating shaft seal ring of the material mixing device and enters the interior of the material mixing device through the seal ring to achieve the effects of sealing and reducing the generation of metal foreign matters due to friction.

[0003] There is a meter in the material mixing device. When the meter performs rough measurement and a large amount of materials enter the material mixing device, at this time, the gas discharge volume in the material mixing device is large, and the dust collection device connected to the material mixing device needs to be able to absorb a large amount of gas discharged from the material mixing device to ensure the stability of the air pressure in the material mixing device; when the meter performs fine measurement, the feeding speed of the meter in the material mixing device slows down, the gas discharge volume in the material mixing device becomes smaller, and the dust collection device connected to the material mixing device also needs to reduce its gas absorption capacity to ensure the stability of the air pressure in the material mixing device.

[0004] However, in the prior art, the dust collection device generally can only absorb the gas discharged from the material mixing device with a rated air volume. When the meter performs fine measurement, the dust collection device will absorb more gas in the material mixing device, thereby affecting the measurement accuracy.

[0005] Therefore, there is an urgent need for a new device to solve the above problems. Summary of the Utility Model

[0006] In view of this, the embodiments of the present utility model provide a pipeline assembly, a dust collection device and a material feeding system. The air suction capacity of the pipeline assembly can be adjusted according to the amount of gas discharged from the material mixing device to ensure the stability of the pressure in the material mixing device and improve the measurement accuracy of the meter in the material mixing device.

[0007] In the first aspect, the pipeline assembly provided by the embodiment of the present utility model includes: a main pipeline and at least one first sub-pipeline. The first end of the main pipeline is used to communicate with the exhaust port of the material mixing device, and the second end of the main pipeline is used to communicate with the inlet of the dust collector, wherein:

[0008] Both ends of the first sub-pipeline are connected to the main pipeline, and both ends of the first sub-pipeline are located between the first end and the second end of the main pipeline. An electromagnetic valve is provided on the main pipeline, and a first mechanical valve is provided on the first sub-pipeline. The inner diameter of the main pipeline is larger than that of the first sub-pipeline.

[0009] Specifically, the inner diameter of the main pipeline is larger than that of the first sub-pipeline, that is, the gas flow rate in the main pipeline is greater than that in the first sub-pipeline. When the material mixing device discharges a large amount of gas, both the electromagnetic valve and the first mechanical valve are opened. When the material mixing device discharges a small amount of gas, the electromagnetic valve is closed and the first mechanical valve is in the open state, so that the material mixing device discharges through a relatively small gas flow capacity, thereby ensuring the stability of the pressure in the material mixing device and thus ensuring the metering accuracy of the meter in the material mixing device.

[0010] In a possible implementation manner, a main mechanical valve is provided on the main pipeline.

[0011] In a possible implementation manner, the pipeline assembly further includes at least one second sub-pipeline. Both ends of the second sub-pipeline are connected to the main pipeline, and both ends of the second sub-pipeline are located between the first end and the second end of the main pipeline, where:

[0012] A second mechanical valve is provided on the second sub-pipeline, and the inner diameter of the second sub-pipeline is smaller than that of the first sub-pipeline.

[0013] In a possible implementation manner, a first electromagnetic valve is provided on the first sub-pipeline.

[0014] In a possible implementation manner, a second electromagnetic valve is provided on the second sub-pipeline.

[0015] In a possible implementation manner, a first flange is provided at the first end of the main pipeline, and a second flange is provided at the second end of the main pipeline. The first flange is used to connect to the exhaust port of the material mixing device, and the second flange is used to connect to the inlet of the dust collector.

[0016] In a second aspect, the present application further provides a dust collection device, including a dust collector and at least one pipeline assembly in the first aspect. The dust collector includes a dust collection bin and a fan. The fan is connected to the dust collection bin. The dust collection bin includes a plurality of inlets, and the inlets are communicated with the pipeline assembly. The amount of gas discharged from the material mixing device absorbed by the dust collection device can be adjusted by the valves in the pipeline assembly to ensure the stability of the pressure in the material mixing device.

[0017] In a third aspect, the present application further provides a material rationing system, including a material mixing device and the dust collection device in the second aspect. A meter is provided in the material mixing device, and the exhaust port of the material mixing device is communicated with the first end of the main pipeline;

[0018] When the material weight in the meter is the first weight, the solenoid valve on the main pipeline closes.

[0019] In this material feeding system, the pressure inside the material mixing device can be adjusted by the dust collection device to ensure the measurement accuracy of the meter in the material mixing device.

[0020] In a possible implementation, the material feeding system further includes a controller, which is electrically connected to the meter and the solenoid valve respectively.

[0021] In a possible implementation, a pressure sensor is further arranged inside the material mixing device. The pressure sensor is used to detect the pressure inside the material mixing device and is electrically connected to the controller. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the material feeding system provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a pipeline assembly provided by an embodiment of the present invention;

[0024] Figure 3 It is another schematic structural diagram of the pipeline assembly provided by an embodiment of the present invention;

[0025] Figure 4 It is another schematic structural diagram of the pipeline assembly provided by an embodiment of the present invention.

[0026] Reference signs: 10 - pipeline assembly; 11 - main pipeline; 12 - first sub - pipeline; 13 - solenoid valve; 14 - main mechanical valve; 15 - first mechanical valve; 16 - first solenoid valve; 17 - second sub - pipeline; 18 - second mechanical valve; 19 - second solenoid valve; 20 - dust collection device; 21 - dust collection bin; 22 - fan; 30 - material feeding system; 31 - material mixing device. Detailed Embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Next, the material feeding system provided by the embodiments of the present invention will be specifically described in conjunction with the drawings.

[0029] Figure 1 It is a schematic structural diagram of the material feeding system 30 provided by an embodiment of the present invention. Refer toFigure 1 In the embodiment of the present utility model, the material feeding system 30 includes a material mixing device 31 and a dust collection device 20. A meter is provided in the material mixing device 31. The exhaust port of the material mixing device 31 is communicated with the first end of the main pipeline 11 included in the dust collection device 20, and the gas in the material mixing device 31 is discharged through the main pipeline 11 of the dust collection device 20. The material feeding system 30 further includes a material storage bin and a conveying device. One end of the conveying device is communicated with the outlet of the material storage bin, and the other end of the conveying device is communicated with the inlet of the material mixing device 31. When the material just enters the material mixing device 31, the meter performs rough measurement. The amount of material conveyed to the meter per unit time is relatively large. At this time, the amount of gas discharged from the material mixing device 31 is relatively large, and the gas absorption capacity of the dust collection device 20 is also relatively large, so as to stabilize the pressure in the material mixing device 31. When the weight of the material in the meter reaches the first weight, the meter starts fine measurement, and the conveying speed of the conveying device decreases. The amount of material conveyed to the meter per unit time is relatively small. At this time, the amount of gas discharged from the material mixing device 31 is relatively small, and the solenoid valve 13 on the main pipeline 11 of the dust collection device 20 is closed to reduce the gas absorption capacity of the dust collection device 20, thereby ensuring the stability of the air pressure in the material mixing device 31 and improving the measurement accuracy.

[0030] For the convenience of understanding, the rough measurement and fine measurement of the meter are described. Taking the example that the meter in the material mixing device 31 weighs 10 kg of material each time: When the meter starts to measure and the weight of the material on the meter reaches between 0 kg and 9 kg, the process of the conveying device conveying 1 kg of material to the meter per unit time is regarded as rough measurement, and 9 kg can be regarded as the first weight. When the weight of the material on the meter reaches 9 kg, the amount of material conveyed to the meter by the conveying device starts to decrease, and the amount of material conveyed to the meter by the device per unit time is 500 g. At this time, it can be regarded as the fine measurement of the meter. And when the amount of material conveyed to the meter by the device per unit time is 500 g, the gas discharged from the material mixing device 31 will also decrease correspondingly. Closing the solenoid valve 13 on the main pipeline 11 of the dust collection device 20 can ensure the stability of the internal air pressure of the material mixing device 31. [[ID=,6]]

[0031] The material feeding system 30 further includes a controller, which can be electrically connected to the meter and the solenoid valve 13. The controller can receive the information of the material weight on the meter in real time. When the weight of the material on the meter reaches the first weight, the controller can control the solenoid valve 13 to close to reduce the gas absorption capacity of the dust collection device 20 and ensure the stability of the air pressure in the material mixing device 31. Among them, the controller is also electrically connected to the conveying device. When the weight of the material on the meter reaches the first weight, the controller also controls the conveying speed of the conveying device per unit time.

[0032] In the above embodiments, a pressure sensor is further disposed in the material mixing device 31. The pressure sensor can detect the pressure inside the material mixing device 31, and the pressure sensor is electrically connected to the controller. When the meter performs rough measurement, when the pressure sensor detects that the pressure inside the material mixing device 31 is too high, the controller can reduce the total amount of material conveyed by the conveying device per unit time, or the controller can control the dust collection device 20 to increase the amount of gas absorbed. When the pressure sensor detects that the pressure inside the material mixing device 31 is relatively low, the controller can increase the total amount of material conveyed by the conveying device per unit time, or the controller can control the dust collection device 20 to reduce the amount of gas absorbed. The fine measurement by the meter is the same as the rough measurement, and details are not described herein again.

[0033] Continue to refer to Figure 1 , the dust collection device 20 may include a dust collector and at least one pipeline assembly 10. The dust collector includes a dust collection bin 21 and a fan 22. The fan 22 is connected to the dust collection bin 21. The dust collection bin 21 includes a plurality of inlets, and each inlet can communicate with a pipeline assembly 10. The pipeline assembly 10 is also communicated with the air outlet of the material mixing device 31. Generally, each dust collection bin 21 communicates with a plurality of pipeline assemblies 10, and each pipeline assembly 10 can communicate with different material mixing devices 31. And the air volume provided by the fan 22 is generally rated. Therefore, when adjusting the amount of gas absorbed by each pipeline assembly 10 from the material mixing device 31, it is necessary to adjust each valve on the pipeline assembly 10.

[0034] The pipeline assembly 10 will be described below:

[0035] Figure 2 is a schematic structural diagram of a pipeline assembly provided by an embodiment of the present invention. Refer to Figure 2, a is the inner diameter of the main pipeline 11, b is the inner diameter of the first sub-pipeline, and b is less than a, that is, the gas flow rate in the main pipeline 11 is greater than that in the first sub-pipeline 12. The pipeline assembly 10 includes a main pipeline 11 and at least one first sub-pipeline 12. The first end of the main pipeline 11 is communicated with the exhaust port of the material mixing device 31, and the second end of the main pipeline 11 is communicated with the inlet of the dust collector. Among them, both ends of the first sub-pipeline 12 are connected to the main pipeline 11, and both ends of the first sub-pipeline 12 are located between the first end and the second end of the main pipeline 11. An electromagnetic valve 13 is provided on the main pipeline 11, and a first mechanical valve 15 is provided on the first sub-pipeline 12. The inner diameter of the main pipeline 11 is greater than that of the first sub-pipeline 12. Specifically, the gas flow capacity of the main pipeline 11 is greater than that of the first sub-pipeline 12. When the meter in the material mixing device 31 performs rough measurement, the electromagnetic valve 13 on the main pipeline 11 is in an open state, and the first mechanical valve 15 on the first sub-pipeline 12 is also in an open state to ensure that the pipeline assembly 10 can meet the requirement of a large amount of gas discharge in the material mixing device 31. When the meter in the material mixing device 31 performs fine measurement, the electromagnetic valve 13 can be closed so that the pipeline assembly 10 can meet the requirement of a small amount of gas discharge in the material mixing device 31, thereby ensuring the pressure in the material mixing device 31 and further ensuring the measurement accuracy of the meter.

[0036] Continue to refer to Figure 2 , a main mechanical valve 14 is provided on the main pipeline 11, and the main mechanical valve 14 is adjusted according to the exhaust gas volume during the rough measurement of the material mixing device 31 to ensure that the pipeline assembly 10 can meet the exhaust gas requirements of the material mixing device 31 and prevent the pressure in the material mixing device 31 from being too high or too low.

[0037] Figure 3 is another structural schematic diagram of the pipeline assembly provided by the embodiment of the present invention. Refer to Figure 3, a is the inner diameter of the main pipeline 11, b is the inner diameter of the first sub-pipeline, and b is less than a, that is, the gas flow rate in the main pipeline 11 is greater than that in the first sub-pipeline 12. A first solenoid valve 16 is also provided on the first sub-pipeline 12. When the meter in the material mixing device 31 performs rough metering, the solenoid valve 13 on the main pipeline 11 and the first solenoid valve 16 on the first sub-pipeline 12 are in the open state, and the main mechanical valve 14 on the main pipeline 11 and the first mechanical valve 15 on the first sub-pipeline 12 are also in the open state to ensure that the pipeline assembly 10 can meet the requirement of discharging a large amount of gas in the material mixing device 31. When the meter in the material mixing device 31 performs fine metering, the solenoid valve 13 can be closed, and the first solenoid valve 16 and the first mechanical valve 15 are in the open state, so that the pipeline assembly 10 meets the requirement of discharging a small amount of gas in the material mixing device 31, ensuring the pressure in the material mixing device 31 and further ensuring the metering accuracy of the meter. And when the material on the meter reaches the preset weighing value, the first solenoid valve 16 can also be in the closed state to prevent the air pressure in the material mixing device 31 from being too low.

[0038] Continue to refer to Figure 3 , there can be two first sub-pipelines 12, and a first solenoid valve 16 can be provided on one of the first sub-pipelines 12. When the material in the meter is about to reach the preset weighing value, the material conveyed by the conveying device to the meter further decreases. The first solenoid valve 16 can be closed, and only one first sub-pipeline 12 remains in the conducting state, thereby ensuring the pressure in the material mixing device.

[0039] Figure 4 is another structural schematic diagram of the pipeline assembly provided by the embodiment of the present invention. Refer to Figure 4, a is the inner diameter of the main pipeline 11, b is the inner diameter of the first sub-pipeline, c is the inner diameter of the second sub-pipeline, b is less than a, c is less than b, that is, the gas flow rate in the main pipeline 11 is greater than the gas flow rate in the first sub-pipeline 12, and the gas flow rate in the first sub-pipeline 12 is greater than the gas flow rate in the second sub-pipeline 17. The pipeline assembly 10 further includes at least one second sub-pipeline 17, both ends of the second sub-pipeline 17 are connected to the main pipeline 11, and both ends of the second sub-pipeline 17 are located between the first end and the second end of the main pipeline 11. Among them, a second mechanical valve 18 is provided on the second sub-pipeline 17, and the inner diameter of the second sub-pipeline 17 is less than the inner diameter of the first sub-pipeline 12. When the meter in the material mixing device 31 performs precise metering, it can also be further subdivided. When the weight of the material in the meter is the first weight, the solenoid valve 13 can be closed, and the first solenoid valve 16, the first mechanical valve 15, and the second mechanical valve 18 are in the open state. When the weight of the material in the meter is the second weight, the solenoid valve 13, the first solenoid valve 16, and the first mechanical valve 15 can all be in the closed state, and the second mechanical valve 18 is in the open state, so that the pipeline assembly 10 satisfies the small amount of gas discharge in the material mixing device 31, thereby ensuring the pressure in the material mixing device 31, and further ensuring the metering accuracy of the meter. Among them, when the weight of the material in the meter is the first weight and the second weight, the number of materials entering the meter per unit time also becomes less.

[0040] Continue to refer to Figure 4 , a second solenoid valve 19 is provided on the second sub-pipeline 17. When the material on the meter reaches the preset weighing value, the second solenoid valve 19 can also be in the closed state to prevent the air pressure in the material mixing device 31 from being too low.

[0041] In the above embodiments, the numbers of the first sub-pipeline 12 and the second sub-pipeline 17 can be adjusted according to actual needs. In addition, in the actual application process, it can also include a third sub-pipeline and a fourth sub-pipeline with inner diameters different from those of the main pipeline 11, the first sub-pipeline 12, and the second sub-pipeline 17, as long as it is used to ensure the stability of the air pressure in the material mixing device 31, which will not be elaborated here.

[0042] It is worth mentioning that in order to facilitate the connection between the pipeline assembly 10 and the dust collection bin 21, a first flange is provided at the first end of the main pipeline 11. The first flange is used to set a third flange at the exhaust port of the material mixing device 31, and a gasket is provided between the first flange and the third flange to ensure the tightness of the connection between the main pipeline 11 and the material mixing device 31. A second flange is provided at the second end of the main pipeline 11. A fourth flange connected to the second flange is provided at the inlet of the dust collection bin 21, and a gasket is also provided between the fourth flange and the second flange to ensure the tightness of the connection between the main pipeline 11 and the dust collection bin 21.

[0043] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A pipeline component, characterized in that, The pipeline assembly includes: a main pipeline and at least one first sub-pipeline. The first end of the main pipeline is used to communicate with the exhaust port of the material mixing device, and the second end of the main pipeline is used to communicate with the inlet of the dust collector. Wherein: Both ends of the first sub-pipeline are connected to the main pipeline, and both ends of the first sub-pipeline are located between the first end and the second end of the main pipeline. A solenoid valve is provided on the main pipeline, and a first mechanical valve is provided on the first sub-pipeline. The inner diameter of the main pipeline is larger than the inner diameter of the first sub-pipeline.

2. The pipeline assembly according to claim 1, wherein, A main mechanical valve is provided on the main pipeline.

3. The pipeline assembly according to claim 2, wherein, The pipeline assembly further includes at least one second sub-pipeline. Both ends of the second sub-pipeline are connected to the main pipeline, and both ends of the second sub-pipeline are located between the first end and the second end of the main pipeline. Wherein: A second mechanical valve is provided on the second sub-pipeline, and the inner diameter of the second sub-pipeline is smaller than the inner diameter of the first sub-pipeline.

4. The pipeline assembly according to claim 3, wherein, A first solenoid valve is provided on the first sub-pipeline.

5. The pipeline assembly according to claim 3 or 4, characterized in that A second solenoid valve is provided on the second sub-pipeline.

6. The pipeline assembly according to any one of claims 1 to 4, characterized in that A first flange is provided at the first end of the main pipeline, and a second flange is provided at the second end of the main pipeline. The first flange is used to connect to the exhaust port of the material mixing device, and the second flange is used to connect to the inlet of the dust collector.

7. A dust collection device, characterized in that, It includes a dust collector and at least one pipeline assembly as described in any one of claims 1 to 6. The dust collector includes a dust collection chamber and a fan. The fan is connected to the dust collection chamber. The dust collection chamber includes a plurality of the inlets, and the inlets communicate with the pipeline assembly.

8. A material rationing system, comprising a material mixing device and a dust collection device as described in claim 7, characterized in that, A meter is provided inside the material mixing device, and the exhaust port of the material mixing device communicates with the first end of the main pipeline; When the weight of the material in the meter is the first weight, the solenoid valve on the main pipeline is closed.

9. The material rationing system according to claim 8, wherein, The material feeding system further includes a controller, and the controller is electrically connected to the meter and the solenoid valve respectively.

10. The material rationing system according to claim 9, wherein A pressure sensor is further provided inside the material mixing device. The pressure sensor is used to detect the pressure inside the material mixing device, and the pressure sensor is electrically connected to the controller.

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