A powder storage tank anti-bridging negative pressure material suction and delivery device

Abstract

The present invention proposes a negative pressure suction and delivery device for powder storage tanks to prevent bridging, comprising a transmitter housing and a stirring device. The transmitter housing is provided with a feed port for connecting to an external storage tank and a suction port for negative pressure pneumatic delivery. The suction port is connected to the interior of the transmitter housing. The stirring device is used to stir the powder within the transmitter housing. This device, by providing a stirring device to stir the powder within the transmitter housing, can effectively and long-term prevent the powder from bridging within the transmitter housing.

Description

Technical Field

[0001] The present invention relates to the technical field of powder storage tank structures used in the chemical industry, and in particular to an anti-bridging negative pressure material suction and delivery device for a powder storage tank. Background Art

[0002] Negative pressure pneumatic conveying systems are widely used in the materials, food, and chemical industries. During the negative pressure pneumatic conveying process, powder materials often experience bridging and pipeline blockage. This is especially true when powder materials are stored or transferred in storage tanks during transportation, which inevitably leads to stratification and uneven distribution of the powder materials in the tanks.

[0003] In order to avoid the above phenomenon and to facilitate discharging and cleaning, storage tanks are generally equipped with anti-bridging vibration motors. The anti-bridging vibration motor drives the entire storage tank to vibrate, thereby alleviating the anti-bridging phenomenon of powder materials. However, the effect of long-term use of this method is not ideal. First, the anti-bridging ability is limited. Second, long-term vibration will make the material at the bottom of the tank more dense, making it impossible to carry out negative pressure pneumatic conveying of powder materials.

[0004] Therefore, there is a need for a better solution to solve the problems in the prior art. Summary of the Invention

[0005] In response to the shortcomings of the prior art, the present invention proposes a powder storage tank anti-bridging negative pressure material suction and delivery device. The device of this solution can effectively and long-term prevent the powder material in the transmitter housing from bridging by providing a stirring device.

[0006] Specifically, the present invention proposes the following specific embodiments:

[0007] An embodiment of the present invention proposes a powder storage tank anti-bridging negative pressure material suction and sending device, including: a transmitter shell and a stirring device; wherein, the transmitter shell is provided with a feed port for connecting to an external storage tank and a suction port for negative pressure pneumatic conveying; the suction port is communicated with the interior of the transmitter shell; the stirring device is used to stir the powder in the transmitter shell.

[0008] In a specific embodiment, the number of the suction ports is one or more; when the number of the suction ports is multiple, each of the suction ports is sequentially arranged on the transmitter housing from top to bottom; the central axis of each of the suction ports is tangent to the arc of the inner wall of the transmitter housing.

[0009] In a specific embodiment, the stirring device includes an anti-bridging stirring paddle and a power end; the anti-bridging stirring paddle is arranged inside the transmitter housing; and the anti-bridging stirring paddle is connected to the power end.

[0010] In a specific embodiment, the device further includes: a connecting flange; the anti-bridging agitator is connected to the power output shaft of the power end through the connecting flange.

[0011] In a specific embodiment, the anti-bridging agitator includes: a main shaft, multiple cross bars, and multiple vertical bars; wherein one end of each cross bar is connected to the main shaft; each vertical bar is connected to multiple cross bars; and the main shaft is connected to the power output shaft of the power end.

[0012] In a specific embodiment, each of the horizontal bars and each of the vertical bars is tubular in shape.

[0013] In a specific embodiment, the device further includes: a mounting flange; wherein the mounting flange is arranged on the feed port, and the feed port is connected to an external storage tank through the mounting flange.

[0014] In a specific embodiment, the power end is a reduction motor.

[0015] In a specific embodiment, the transmitter housing is cylindrical in shape.

[0016] In a specific embodiment, the device also includes: a connecting pipe; wherein the first end of the connecting pipe is detachably connected to the outlet of the suction port, and a valve is also provided on the connecting pipe; an air inlet is also provided on the connecting pipe between the first end and the valve; the air inlet is communicated with the connecting pipe.

[0017] In a specific embodiment, the device further includes: an external tube, wherein the external tube is detachably connected to the second end of the connecting tube, the second end being the end of the connecting tube away from the first end; and the central axis of the external tube is an arc.

[0018] Therefore, compared with the existing technology, this solution has the following technical effects:

[0019] This solution uses the anti-bridging stirring paddle to continuously stir the powder material in the transmitter housing, so that the powder material in the transmitter housing remains in motion, thereby avoiding the bridging phenomenon caused by continuous squeezing due to gravity. At the same time, the continuously moving powder material is also more conducive to the suction process at the suction port due to the negative pressure effect, which can effectively and long-term avoid the bridging phenomenon of the powder material in the transmitter housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic cross-sectional view of a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0023] Figure 3 This is a schematic structural diagram of a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a transmitter housing in a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a transmitter housing in a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a transmitter housing in a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of the connection between the power end and the anti-bridging stirring paddle in a powder storage tank anti-bridging negative pressure material suction and delivery device proposed in an embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a connecting pipe in a negative pressure material suction and delivery device for preventing bridging of powder storage tanks proposed in an embodiment of the present invention;

[0029] Figure 9 This is a structural schematic diagram of an external pipe in a powder storage tank anti-bridging negative pressure material suction and delivery device proposed in an embodiment of the present invention.

[0030] Legend:

[0031] 1- transmitter housing; 11- feed port; 12- suction port;

[0032] 10- stirring device;

[0033] 2-power end; 21-power output shaft;

[0034] 3-anti-bridging stirring paddle; 31-main shaft; 32-cross bar; 33-vertical bar;

[0035] 4-sealing assembly; 5-connecting flange; 6-mounting flange;

[0036] 7-connecting pipe; 71-first end; 72-valve; 73-air inlet; 74-second end;

[0037] 8-External pipe;

[0038] 9-External storage tank. DETAILED DESCRIPTION

[0039] Hereinafter, various embodiments of the present disclosure will be described more fully. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but rather that the present disclosure should be construed to encompass all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present disclosure.

[0040] The terms used in the various embodiments of the present disclosure are only used to describe the purpose of specific embodiments and are not intended to limit the various embodiments of the present disclosure. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise specified, all terms used herein (including technical terms and scientific terms) have the same meaning as those generally understood by those skilled in the art to which the various embodiments of the present disclosure belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present disclosure.

[0041] Example

[0042] The present invention discloses a negative pressure suction and delivery device for powder storage tanks that prevents bridging, comprising a transmitter housing 1 and a stirring device 10. The transmitter housing 1 is provided with a feed port 11 for connecting to an external storage tank 9 and a suction port 12 for negative pressure pneumatic delivery. The suction port 12 is connected to the interior of the transmitter housing 1. The stirring device 10 is used to stir the powder within the transmitter housing 1. This stirring device continuously stirs the powder within the transmitter housing 1. Compared to existing technologies, this solution is simple and relatively energy-efficient, effectively and long-term preventing the bridging of the powder within the transmitter housing 1.

[0043] Furthermore, the stirring device 10 includes an anti-bridging stirring paddle 3 and a power end 2 ; the anti-bridging stirring paddle 3 is arranged inside the transmitter housing 1 ; and the anti-bridging stirring paddle 3 is connected to the power end 2 .

[0044] As for the power end 2, it can be Figure 1 Or as shown in Figure 2, it is arranged at the bottom of the transmitter housing 1. In addition, for example, it can also be arranged on the side of the transmitter housing 1 and connected to the anti-bridging agitator 3 through a power transmission device, such as a gear set; in addition, the power end 2 may not be directly connected to the transmitter housing 1, and the power end 2 can be independently arranged, for example, fixed on the ground, and the power output shaft 21 of the power end 2 is connected to the anti-bridging agitator 3 through a power transmission device such as a power synchronous belt.

[0045] In this way, Figure 1-3 As shown, the entire device may include: a transmitter housing 1, a power end 2, and an anti-bridging stirring paddle 3; wherein, a feed port 11 for connecting to an external storage tank 9 is provided on the upper part of the transmitter housing 1; a plurality of suction ports 12 for negative pressure pneumatic conveying are provided on the transmitter housing 1; each suction port 12 is connected to the interior of the transmitter housing 1; the anti-bridging stirring paddle 3 is provided inside the transmitter housing 1, and the anti-bridging stirring paddle 3 is connected to the power end 2.

[0046] Specifically, in actual application, the powder material in the external storage tank 9 enters the transmitter housing 1 through the feed port 11. In this case, by starting the power end 2, the power output shaft 21 of the power end 2 rotates, thereby driving the anti-bridging stirring paddle 3 to rotate in the transmitter housing 1, so that the powder material is stirred by the anti-bridging stirring paddle 3, so that the powder material remains in a rotating state, thereby avoiding the occurrence of bridging phenomenon, and the output shaft 21 of the power end 2 and the bottom of the transmitter housing 1 can be sealed and connected by a sealing component 4, so as not to cause leakage of the powder material. The specific sealing component 4 can be, for example, a sealing ring or other components that can achieve sealing. And the method of driving the anti-bridging stirring paddle 3 by the power end 2 can greatly save costs compared to driving the entire storage tank to vibrate.

[0047] The anti-bridging stirring paddle 3 stirs inside the transmitter housing 1 to avoid bridging of the powder material. Furthermore, the solution of the present application is also provided with a suction port 12 for negative pressure pneumatic conveying. The powder material is sucked from the suction port 12 through negative pressure, and the number of the suction ports 12 is one or more; the solution of the present application is provided with multiple suction ports 12 for sucking powder material, thereby realizing negative pressure pneumatic conveying from one point to multiple points from the transmitter housing 1 to multiple suction ports 12, which can effectively improve the suction efficiency.

[0048] In addition, if Figure 4-6The horizontal cross-section of the transmitter housing 1 is circular, so that the agitator 3 can further promote the suction port 12 to absorb the powder material by using centrifugal force when stirring to prevent bridging.

[0049] In order to better absorb the powder material from the suction port 12, when there are multiple suction ports 12, each suction port 12 is sequentially arranged on the transmitter housing 1 from top to bottom; the central axis of each suction port 12 is tangent to the arc of the inner wall of the transmitter housing 1. Specifically, the suction ports 12 can be arranged in two rows, and the suction ports 12 in each row are vertically arranged on the arc side of the transmitter housing 1 from top to bottom. The cross-section of each suction port 12 is circular, and the center connection of the circular cross-section of each suction port 12 is the central axis. By setting the central axis of the suction port 12 to be tangent to the arc of the inner wall of the transmitter housing 1, that is, tangent to the arc of the cross-section edge of the transmitter housing 1 in the horizontal plane direction, it is beneficial to reduce the resistance during suction, ensure smooth suction, and increase the efficiency of suction.

[0050] In a specific embodiment, in order to facilitate the maintenance of the anti-bridging stirring paddle 3, as shown in FIG. Figure 7 The device in the present application also includes: a connecting flange 5; the anti-bridging stirring paddle 3 is connected to the power output shaft 21 of the power end 2 via the connecting flange 5. Specifically, the connecting flange 5 is used to connect the power output shaft 21 of the power end 2 to the anti-bridging stirring paddle 3. The output shaft 21 and the anti-bridging stirring paddle 3 can be easily disassembled by removing the connecting flange 5, which facilitates the replacement and maintenance of the anti-bridging stirring paddle 3, thereby further ensuring the long-term stable operation of the entire device.

[0051] In a specific embodiment, Figure 1 as well as Figure 7 The anti-bridging agitator 3 includes a main shaft 31, multiple cross bars 32, and multiple vertical bars 33. One end of each cross bar 32 is connected to the main shaft 31, and each vertical bar 33 is connected to multiple cross bars 32. The main shaft 31 is connected to the power output shaft 21 of the power end 2. Specifically, the main shaft 31 is connected to the power output shaft 21 of the power end 2 to achieve power drive, thereby driving the cross bars 32 and vertical bars 33 to cut and stir the powder material in the transmitter housing 1. This not only reduces stirring resistance but also effectively prevents bridging of the powder material.

[0052] Furthermore, each crossbar 32 and each vertical bar 33 is tubular in shape. Specifically, the crossbar 32 and vertical bar 33 are tubular in shape and have a smooth surface, which can reduce friction with the powder material, avoid powder generation as much as possible, and ensure the quality of the powder material.

[0053] In a specific embodiment, Figure 6The device further includes: a mounting flange 6; wherein the mounting flange 6 is arranged on the top of the feed port 11, and the feed port 11 is connected to the external storage tank 9 through the mounting flange 6. Specifically, the mounting flange 6 is connected to the external storage tank 9, for example, in an actual application scenario, Figure 1 As shown, the bottom of the external storage tank 9 is connected via the mounting flange 6. The mounting method is simple, and it is convenient to adapt to different external storage tanks 9, which is beneficial to subsequent maintenance and disassembly.

[0054] In a specific embodiment, the power end 2 can be a motor, or a gasoline engine, a diesel engine, etc. The power end 2 can be arranged on the transmitter housing 1, for example, it can be arranged at the bottom of the transmitter housing 1. It can also not be directly connected to the transmitter housing 1, but through other transmission mechanisms, such as a gear set or a power belt, to achieve the connection between the power output shaft 21 of the power end 2 and the anti-bridging stirring paddle 3 to drive the anti-bridging stirring paddle 3. Preferably, a reduction motor can be selected as the power end 2.

[0055] Specifically, the reduction motor is characterized by high efficiency and reliability, long service life, easy maintenance, wide application, high integration, space saving, reliability and durability, high overload capacity, power up to 95KW or more, low energy consumption, superior performance, and a reduction motor efficiency of more than 95%. The reduction motor used in the solution of this application can well adapt to the use needs of this device and save costs.

[0056] Furthermore, the transmitter housing 1 is cylindrical in shape. Specifically, by adopting the cylindrical transmitter housing 1 , the resistance of the anti-bridging stirring paddle 3 can be further reduced, which is conducive to the powder material being sucked by the suction port 12 .

[0057] In a specific embodiment, Figure 2 、 3 as well as Figure 8 The device also includes: a connecting pipe 7; wherein the first end 71 of the connecting pipe 7 is detachably connected to the outlet of the suction port 12, and a valve 72 is also provided on the connecting pipe 7; an air inlet 73 is also provided on the connecting pipe 7 between the first end 71 and the valve 72; the air inlet 73 is communicated with the connecting pipe 7.

[0058] Specifically, the suction port 12 is connected through the connecting pipe 7, so that the sucked powder material can be discharged. Secondly, the connecting pipe 7 itself is provided with a valve 72 and an air inlet 73. In this case, if it is necessary to further improve the anti-bridging effect, the valve 72 can be temporarily closed to stop the suction operation, and gas can be reversely injected into the suction port 12 through the air inlet 73 to further improve the anti-bridging ability through the injected gas. In addition, since there are multiple suction ports 12 and their positions are different, the suction ports 12 at different positions can be selected for inflation operations, so that one or more suction ports 12 and the corresponding connecting pipes 7 can be selected to perform inflation operations according to the situation of the powder material in the transmitter housing 1.

[0059] In a specific embodiment, Figure 2 、 3 as well as Figure 9 The device also includes: an external tube 8, wherein the external tube 8 is detachably connected to the second end 74 of the connecting tube 7, and the second end 74 is an end of the connecting tube 7 away from the first end 71; the central axis of the external tube 8 is an arc.

[0060] In order to further guide the sucked powder material, the solution of the present application is further provided with an external pipe 8, through which the sucked powder material can be further guided. Taking into account the volume of the transmitter housing 1 and the plurality of suction ports 12 provided on the transmitter housing 1, in order to facilitate the conveying operation after suction, the external pipe 8 is an arc-shaped pipe, so that by adjusting the angle, for example, Figure 3 As shown, there are four external tubes 8, and the external tubes 8 are provided with two ends, namely a first external end and a second external end, wherein the first external end is connected to the connecting tube 7; Since the external tube 8 is an arc tube, the second external ends of the four external tubes 8 can be dispersed by rotating the first external end, for example, the position of the second external end can be adjusted by rotating the first external end to Figure 3 Taking the four external tubes 8 shown as an example, they can be adjusted in sequence from top to bottom, for example, the second external end of the uppermost external tube 8 can face upward; the second external end of the second external tube 8 can face left, the second external end of the third external tube 8 can face right, and the second external end of the lowermost external tube 8 can face downward; compared with four straight tube-shaped external tubes 8, the outlets of adjacent external tubes 8 can be spaced farther apart. In one example, for example, the outlet of the external tube 8 is connected to a device for using powder materials. By adopting an arc tube setting, it is more convenient to connect multiple devices for use; thereby, the three-dimensional space can be fully utilized to guide the absorbed powder materials without crowding the devices together to cause inconvenience.

[0061] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required to implement the present invention.

[0062] Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the implementation scenario description, or can be modified accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module or further split into multiple submodules.

[0063] The above serial numbers of the present invention are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0064] The above disclosures are only several specific implementation scenarios of the present invention. However, the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A powder storage tank anti-bridging negative pressure material suction and delivery device, characterized in that: include: A transmitter shell and a stirring device; wherein the transmitter shell is provided with a feed port for connecting an external storage tank and a suction port for negative pressure pneumatic conveying; the suction port is communicated with the interior of the transmitter shell; the stirring device contains an anti-bridging stirring paddle arranged inside the transmitter shell, which is used to stir the powder in the transmitter shell; the number of the suction ports is one or more; each of the suction ports can be used to discharge powder and inject gas; when the number of the suction ports is multiple, the central axis of each suction port is tangent to the arc of the inner wall of the transmitter shell, the outlets of some of the suction ports are along the stirring direction of the stirring device to discharge the powder in the transmitter shell, and the outlets of some of the suction ports are back to the stirring direction of the stirring device to inject gas into the transmitter shell, and the angle formed by the projection of the gas injection direction and the powder extraction direction on the preset reference plane is not 0°, and the reference plane is the vertical plane of the rotation axis of the anti-bridging stirring paddle.

2. The device according to claim 1, wherein When there are multiple suction ports, the suction ports are sequentially arranged on the transmitter housing from top to bottom.

3. The device according to claim 1, wherein The stirring device includes a power end; the anti-bridging stirring paddle is connected to the power end.

4. The device according to claim 3, characterized in that Also includes: Connecting flange; the anti-bridging agitator is connected to the power output shaft of the power end through the connecting flange.

5. The device according to claim 3, wherein The anti-bridging agitator includes: a main shaft, multiple cross bars, and multiple vertical bars; wherein one end of each cross bar is connected to the main shaft; each vertical bar is connected to multiple cross bars; and the main shaft is connected to the power output shaft of the power end.

6. The device according to claim 5, characterized in that The shapes of the horizontal bars and the vertical bars are all tubular.

7. The device according to claim 1, wherein Also includes: Mounting flange; wherein, the mounting flange is arranged on the feed port, and the feed port is connected to the external storage tank through the mounting flange.

8. The device according to claim 3, wherein The power end is a reduction motor; the shape of the transmitter housing is cylindrical.

9. The device according to claim 1, wherein Also includes: Connecting pipe; wherein, the first end of the connecting pipe is detachably connected to the outlet of the suction port, and a valve is also provided on the connecting pipe; an air inlet is also provided on the connecting pipe between the first end and the valve; the air inlet is communicated with the connecting pipe.

10. The device according to claim 9, wherein Also includes: An external tube, wherein the external tube is detachably connected to the second end of the connecting tube, the second end being the end of the connecting tube away from the first end; and the central axis of the external tube is an arc.

Images