Powder bridging prevention storage device

Abstract

The application relates to a powder anti-bridging storage device, which relates to the material storage technical field and comprises a storage container and a discharge valve. The storage container is provided with a first air chamber with adjustable volume and a second air chamber with adjustable volume, the first air chamber is arranged as an annular air chamber, the annular air chamber surrounds a storage cavity for storing powder, the bottom of the storage cavity is provided with a discharge hole; the second air chamber is inserted into the storage cavity; the discharge valve is connected with the storage container, and the discharge valve is used for adjusting the working state of the discharge hole. The device can improve the discharge smoothness under the premise of reducing the damage to the silo, is not prone to generating noise when the powder bridging is damaged, and the powder is not prone to stratification.

Description

Technical Field

[0001] This utility model relates to the field of material storage technology, and more specifically, to a powder anti-bridging storage device. Background Technology In current daily life and manufacturing processes, the use of silos is unavoidable for the storage and temporary storage of materials, especially powders. However, silos often encounter difficulties in discharging materials, mainly because the materials form bridging phenomena within the silo. To address this issue, vibratory hammers or high-frequency air vibrations are often used to break up the bridging and ensure effective discharging.

[0002] The inventors discovered in their research that existing powder anti-bridging storage devices have at least the following drawbacks: Vibratory hammers primarily use impact motion to vibrate and discharge materials, which can be highly destructive to silos. High-frequency pneumatic vibration is ineffective at breaking bridges and is accompanied by high-decibel noise. Furthermore, it can easily cause material stratification in mixtures of various powders. Utility Model Content

[0003] The purpose of this utility model includes, for example, providing a powder anti-bridging storage device that can improve the smoothness of material discharge while reducing damage to the silo, and is less likely to generate noise, thus providing a good working environment.

[0004] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a powder anti-bridging storage device, comprising: A storage container and a discharge valve; the storage container is provided with a first air chamber with adjustable volume and a second air chamber with adjustable volume, the first air chamber is configured as an annular air chamber, the annular air chamber surrounds a storage cavity for storing powder, and a discharge hole is provided at the bottom of the storage cavity; the second air chamber is inserted into the storage cavity; the discharge valve is connected to the storage container, and the discharge valve is used to adjust the working state of the discharge hole.

[0005] In an optional embodiment, the storage container includes a shell and a first air bladder, the first air bladder being connected to the inner wall of the shell, and the internal space of the first air bladder being configured as the first air chamber.

[0006] In an optional embodiment, the storage container further includes a top cover and a second air bladder, the top cover being connected to the outer shell, the second air bladder being connected to the top cover, and the internal space of the second air bladder being configured as the second air chamber.

[0007] In an optional embodiment, the storage container further includes a shaping rod, one end of which is connected to the top cover and the other end is suspended; the second airbag is configured as an annular structure surrounding the shaping rod.

[0008] In an optional embodiment, the storage container includes a shell and an annular elastic layer, the two ends of which are sealed to the shell so that the shell and the annular elastic layer cooperate to form the first air chamber.

[0009] In an optional embodiment, the storage container further includes a discharge pipe connected to the outer shell, and a discharge valve installed on the discharge pipe for adjusting the opening and closing of the discharge pipe's cavity.

[0010] In an optional embodiment, the first air chamber is provided with a first air inlet and a first air outlet, both of which can be opened or closed, and the first air inlet and the first air outlet are located on the same side of the first air chamber.

[0011] In an optional embodiment, there are multiple first exhaust holes, which are arranged at intervals in the circumferential direction of the annular air chamber.

[0012] In an optional embodiment, the second air chamber is provided with a second air inlet and a second air outlet, both of which can be opened or closed, and the second air inlet and the second air outlet are both located on the same side of the first air chamber.

[0013] In an optional embodiment, the powder anti-bridging storage device further includes a meter installed in the storage container, the meter being used to obtain the flow rate of the discharge port.

[0014] The beneficial effects of this utility model embodiment include, for example: In summary, the powder anti-bridging storage device provided in this embodiment, in its initial state, can fill the first and second air chambers with sufficient gas to ensure that the first and second air chambers have load-bearing capacity, thereby defining a stable storage cavity. Then, the powder is stored in the storage cavity. The discharge valve is opened, so that the discharge hole is in the open working state, and the powder can be discharged from the discharge hole when there is no internal bridging. When internal bridging occurs in the powder, the powder discharge is obstructed, and no material is discharged from the discharge hole, or the material discharge flow rate is significantly reduced. At this time, the inflation state of the first and second air chambers is adjusted to change their volume, thereby changing the support state of the first and second air chambers for the powder, changing the force on the powder, which can destroy the powder bridging phenomenon, thus ensuring that the powder continues to be discharged smoothly. Then, the inflation state of the first and second air chambers is restored to the initial state, allowing for adaptive adjustment when bridging occurs subsequently. The bridge-breaking method of the storage device in this embodiment greatly reduces damage to the equipment compared to vibration and impact. Compared to high-frequency air vibration, it does not produce high-decibel noise. Most importantly, it does not cause material stratification when the materials are mixed with various powders. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the powder anti-bridging storage device in this embodiment; Figure 2 This is a cross-sectional schematic diagram of the powder anti-bridging storage device in this embodiment; Figure 3 This is an exploded view of the powder anti-bridging storage device in this embodiment.

[0017] icon: 100-Storage container; 101-Storage cavity; 102-Discharge port; 110-Outer shell; 120-First airbag; 121-First air chamber; 122-First air inlet; 123-First exhaust port; 130-Second airbag; 131-Second air chamber; 132-Second air inlet; 133-Second exhaust port; 140-Top cover; 141-Feeding port; 150-Shaping rod; 160-Discharge pipe; 200-Discharge valve; 300-Detector. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] Please refer to Figures 1-3 This embodiment provides a powder anti-bridging storage device, which includes a storage container 100 and a discharge valve 200. The storage container 100 is provided with a first air chamber 121 and a second air chamber 131 with adjustable volume. The first air chamber 121 is configured as an annular air chamber, which surrounds a storage cavity for storing powder. A discharge hole 102 is provided at the bottom of the storage cavity. The second air chamber 131 is inserted into the storage cavity. The discharge valve 200 is connected to the storage container 100 and is used to adjust the working state of the discharge hole 102.

[0025] As described above, the working principle of the powder anti-bridging storage device provided in this embodiment is as follows: Initially, sufficient gas can be filled into the first air chamber 121 and the second air chamber 131 to ensure that the first air chamber 121 and the second air chamber 131 have load-bearing capacity, thereby defining a stable storage cavity. Then, the powder is stored in the storage cavity. The discharge valve 200 is opened, so that the discharge hole 102 is in the open working state, allowing the powder to be discharged from the discharge hole 102 when there is no internal bridging. When internal bridging occurs in the powder, the powder discharge is obstructed, and no material is discharged from the discharge hole 102, or the material discharge flow rate is significantly reduced. At this time, the inflation state of the first air chamber 121 and the second air chamber 131 is adjusted to change their volume, thereby changing the support state of the first air chamber 121 and the second air chamber 131 on the powder. This changes the force on the powder, which can break the powder bridging phenomenon, thus ensuring that the powder continues to be discharged smoothly. Afterwards, the inflation state of the first air chamber 121 and the second air chamber 131 is restored to the initial state, allowing for adaptive adjustment when bridging occurs again. The bridge-breaking method of the storage device in this embodiment greatly reduces damage to the equipment compared to vibration and impact. Compared to high-frequency air vibration, it does not produce high-decibel noise. Most importantly, it does not cause material stratification when the materials are mixed with various powders.

[0026] It should be understood that when adjusting the volume of the first air chamber 121 and the second air chamber 131, the first air chamber 121 and the second air chamber 131 are adjusted in opposite directions. That is, increasing the volume of the first air chamber 121 while decreasing the volume of the second air chamber 131, or decreasing the volume of the first air chamber 121 while increasing the volume of the second air chamber 131, can be repeated. Furthermore, supplying gas into the first air chamber 121 or the second air chamber 131 can increase the volume of the first air chamber 121 and the second air chamber 131; conversely, discharging gas from the first air chamber 121 and the second air chamber 131 can decrease their volumes. Operation can be performed as needed.

[0027] The following embodiments illustrate the details of the powder anti-bridging storage device of this application by way of example.

[0028] Please refer to Figures 1-3 In this embodiment, optionally, the powder anti-bridging storage device includes a storage container 100, a discharge valve 200, and a detector 300. The storage container 100 is used to store powder, and the discharge valve 200 is used to open or close the discharge port 102 of the storage container 100 for discharging powder. The detector 300 is used to obtain the discharge flow rate of powder in the discharge port 102, thereby determining whether bridging has occurred in the powder in the storage container 100.

[0029] In this embodiment, optionally, the storage container 100 includes a shell 110, a first airbag 120, a second airbag 130, a top cover 140, a discharge pipe 160, and a shaping rod 150. The first airbag 120 is connected to the shell 110, the second airbag 130 is connected to the top cover 140, and the shaping rod 150 is connected to the top cover 140, with the second airbag 130 covering the shaping rod 150. The top cover 140 is detachably connected to the shell 110. The discharge pipe 160 is connected to the shell 110.

[0030] Please refer to Figures 1-3Optionally, the outer shell 110 is a conical shell, with both the top and bottom of the outer shell 110 being open. The diameter of the bottom opening of the outer shell 110 is smaller than the diameter of the top opening, and the discharge pipe 160 is fixed to the bottom opening. The top cover 140 is a circular cover, detachably connected to the top opening of the outer shell 110. The top cover 140 is provided with a feed hole 141, and a cover can be installed at the feed hole 141, allowing powder to enter the outer shell 110 through the feed hole 141. The first airbag 120 is an annular conical airbag, and the internal space of the first airbag 120 is a first air chamber 121, which is a conical annular air chamber. The first airbag 120 is fixed to the inner wall of the outer shell 110. The area enclosed by the first airbag 120 is a storage chamber 101 for storing powder. The storage chamber 101 is a conical cavity, and the bottom of the storage chamber 101 is a discharge hole 102, which allows the powder to be discharged from the bottom opening under its own gravity. Simultaneously, the first airbag 120 is provided with a first air inlet 122 and a first air outlet 123, both communicating with the first air chamber 121. Each of the first air inlet 122 and the first air outlet 123 can be equipped with an independent valve, allowing for independent control of their opening and closing. The second airbag 130 is an annular airbag, and its internal space is a second air chamber 131, which is approximately cylindrical and annular. The second airbag 130 is arranged around the shaping rod 150 and is connected to both the shaping rod 150 and the top cover 140. After the top cover 140 is connected to the outer shell 110, the second airbag 130 is approximately located on the centerline of the first airbag 120. Simultaneously, the second airbag 130 is provided with a second air inlet 132 and a second air outlet, both communicating with the second air chamber 131. Valves can be installed at both the second air inlet 132 and the second air outlet to control their respective on / off states. Both valves can be solenoid valves, enabling automatic adjustment and flexible, convenient operation.

[0031] It should be understood that pipe fittings can be installed on the first air inlet 122, the first exhaust 123, the second air inlet 132, and the second exhaust 133. All pipe fittings can penetrate the top cover 140 and be positioned by the top cover 140. Thus, the first air inlet 122, the first exhaust 123, the second air inlet 132, and the second exhaust 133 are all located on the same side, arranged in a concentrated manner, facilitating use.

[0032] Furthermore, there can be multiple first exhaust holes 123, which are evenly spaced around the circumference of the first air chamber 121. Since the first air chamber 121 is an annular air chamber with a large span, the design of multiple first exhaust holes 123 allows for exhaust at different locations, which can change the support of the powder from multiple positions and quickly break up the powder bridging phenomenon.

[0033] Optionally, the discharge pipe 160 can be connected to the bottom opening of the housing 110 via a flange structure and communicate with the discharge port 102. The discharge valve 200 is installed on the discharge pipe 160 and can adjust the opening and closing of the discharge pipe 160, thereby adjusting the working state of the discharge port 102, that is, adjusting the opening or closing of the discharge port 102.

[0034] Optionally, the detector 300 can be configured as a sensor capable of detecting whether material is continuously discharged from the discharge port 102. Existing known structures can be referenced, and to avoid repetition, specific details are not provided in this embodiment. By setting the detector 300, the level of automation can be improved. The detector 300, the air pump connected to the first air chamber 121, the air pump connected to the second air chamber 131, and the exhaust valves installed on the first and second air chambers 121 can all be connected to the controller. When the detector 300 detects obstruction in material discharge, this information can be transmitted to the controller, which then adjusts the operating state of the air pump structure.

[0035] Obviously, in some embodiments, when the detector 300 malfunctions, the discharge of powder below the discharge pipe 160 can also be observed manually.

[0036] In some embodiments, optionally, the first air chamber 121 can also be defined by an annular elastic layer mating with the inner wall surface of the housing 110. That is, both ends of the annular elastic layer are sealed to the inner wall surface of the housing 110, thereby forming an annular air chamber. Furthermore, the second air chamber 131 can also be defined by an annular elastic layer and the outer peripheral surface of the shaping rod 150.

[0037] The working principle of the powder anti-bridging storage device provided in this embodiment is as follows: Initially, the first air chamber 121 and the second air chamber 131 contain a fixed amount of gas, and their structures are stable, providing support for the powder. Simultaneously, the first air chamber 121 and the second air chamber 131 can be connected to one or two air pumps, which can then inflate them. The powder enters the storage chamber through the feed port 141, and by opening the discharge valve 200, the powder can be discharged through the discharge port 102. When powder discharge is obstructed due to internal bridging, the detector 300 transmits this information to the controller. The controller then controls the air pump connected to the first air chamber 121 to inflate the powder and simultaneously controls the exhaust valve connected to the second air chamber 131 to exhaust the powder, or controls the exhaust valve connected to the first air chamber 121 to release air and simultaneously controls the air pump connected to the second air chamber 131 to inflate the powder. This changes the support state of the powder by the first and second air chambers 121 and alters the stress state of the powder, breaking the bridging phenomenon and allowing the powder to discharge smoothly. After the powder is successfully discharged, the first and second air chambers 121 and 131 return to their initial states.

[0038] The anti-bridging storage device for powder provided in this embodiment has a bridging breaking method that greatly reduces damage to the equipment compared to vibration and knocking. Compared to high-frequency air vibration, it does not produce high-decibel noise. Most importantly, it does not cause material stratification when the powder is mixed with other powders.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A powder anti-bridging storage device, characterized in that, include: Storage container (100) and discharge valve (200); the storage container (100) is provided with a first air chamber (121) with adjustable volume and a second air chamber (131) with adjustable volume. The first air chamber (121) is configured as an annular air chamber, which surrounds a storage cavity for storing powder. A discharge hole (102) is provided at the bottom of the storage cavity. The second air chamber (131) is inserted into the storage cavity. The discharge valve (200) is connected to the storage container (100) and is used to adjust the working state of the discharge hole (102).

2. The powder anti-bridging storage device according to claim 1, characterized in that: The storage container (100) includes a shell (110) and a first airbag (120), the first airbag (120) being connected to the inner wall of the shell (110), and the internal space of the first airbag (120) being configured as the first air chamber (121).

3. The powder anti-bridging storage device according to claim 2, characterized in that: The storage container (100) further includes a top cover (140) and a second airbag (130), the top cover (140) being connected to the outer shell (110), the second airbag (130) being connected to the top cover (140), and the internal space of the second airbag (130) being configured as the second air chamber (131).

4. The powder anti-bridging storage device according to claim 3, characterized in that: The storage container (100) also includes a shaping rod (150), one end of which is connected to the top cover (140) and the other end is suspended; the second airbag (130) is configured as an annular structure around the shaping rod (150).

5. The powder anti-bridging storage device according to claim 1, characterized in that: The storage container (100) includes a shell (110) and an annular elastic layer. Both ends of the annular elastic layer are sealed to the shell (110) so that the shell (110) and the annular elastic layer cooperate to form the first air chamber (121).

6. The powder anti-bridging storage device according to any one of claims 2-5, characterized in that: The storage container (100) also includes a discharge pipe (160) connected to the outer shell (110), and a discharge valve (200) installed on the discharge pipe (160) for adjusting the opening and closing of the cavity of the discharge pipe (160).

7. The powder anti-bridging storage device according to any one of claims 1-5, characterized in that: The first air chamber (121) is provided with a first air inlet (122) and a first air outlet (123) that can be opened or closed. The first air inlet (122) and the first air outlet (123) are both located on the same side of the first air chamber (121) and communicate with it.

8. The powder anti-bridging storage device according to claim 7, characterized in that: The number of the first exhaust holes (123) is multiple, and the multiple first exhaust holes (123) are arranged at intervals and connected to each other in the circumferential direction of the annular air chamber.

9. The powder anti-bridging storage device according to any one of claims 1-5, characterized in that: The second air chamber (131) is provided with a second air inlet (132) and a second air outlet (133), both of which can be opened or closed. The second air inlet (132) and the second air outlet (133) are both located on the same side of the first air chamber (121) and communicate with it.

10. The powder anti-bridging storage device according to any one of claims 1-5, characterized in that: The powder anti-bridging storage device also includes a meter (300), which is installed in the storage container (100) and is used to obtain the flow rate of the discharge hole (102).

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