Air-permeable pressure relief powder storage bin

Abstract

The utility model discloses a kind of breathable pressure relief powder storage bin, it is related to powder storage technical field, including support, tank, breathable pressure relief pipe, filter powder device and discharging control device.Tank top end connects feed pipe and breathable pressure relief pipe, breathable pressure relief pipe gas outlet connects first filter powder device or second filter powder device;First filter powder device contains gauze and clamp, second filter powder device includes air inlet pipe, shunt disc, filter core and top cover, can filter powder in exhaust gas.Tank bottom discharge port installs discharging control device, it is composed of shell, "" character shape blade and motor, motor drives blade rotation through speed reducer.The utility model realizes breathable pressure relief when feeding, avoid abnormal pressure influence equipment or pollute environment, ensure powder stable discharge simultaneously through discharging control device, improve the stability and controllability of storage and discharge.

Description

Technical Field

[0001] This utility model relates to the field of powder storage technology, and in particular to a breathable and pressure-relief powder storage silo. Background Technology

[0002] The existing powder feeding process in the silo is as follows: During the feeding process, as the powder continuously enters the silo, the original air inside the silo is continuously compressed, causing the air pressure inside the silo to rise sharply. Excessive air pressure can easily cause two problems: First, compressed air rushes back into the feeding pipe, hindering the normal falling of the powder, reducing feeding efficiency, and in severe cases, it may even cause a reverse impact on the upstream feeding equipment, affecting the service life of the equipment; Second, high-pressure air may forcibly escape from non-sealed parts such as gaps and interfaces in the silo, carrying a large amount of dust in the process of escaping, causing dust pollution in the working environment, endangering the health of operators and increasing cleaning costs.

[0003] During the discharge stage, the reduction of powder in the silo will cause negative pressure to form inside. The powder is easily adsorbed on the silo wall or discharge port due to the pressure difference, resulting in problems such as poor discharge and unstable discharge volume, which will affect the continuity of subsequent production processes. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a breathable and pressure-relief powder storage silo.

[0005] The present invention proposes a ventilated and pressure-relief powder storage silo, including a support frame and a material tank installed on the upper part of the support frame. The top of the material tank is connected to a ventilated and pressure-relief pipe, and the outlet of the ventilated and pressure-relief pipe is connected to a first powder filter device or a second powder filter device.

[0006] The first powder filter device includes a gauze covering the outside of the air outlet of the ventilator and pressure relief pipe, and the gauze is locked by a clamp fixed to the outside of the ventilator and pressure relief pipe;

[0007] The second filter device includes an air inlet pipe connected to a venting and pressure relief pipe via a flange. The top end of the air inlet pipe is connected to a distribution plate. Several air guide holes are opened on the edge of the top end of the distribution plate. The top end of the distribution plate is connected to a cylinder. A filter element is fixed inside the cylinder. The top end of the cylinder is connected to a top cover. Several exhaust holes are opened inside the top cover at positions corresponding to the air outlets inside the filter element.

[0008] Furthermore, the top of the material tank is also connected to a feed pipe, and the outlet of the feed pipe and the air inlet of the venting and pressure relief pipe are both connected to the inside of the material tank, so as to discharge the existing air in the material tank during the process of the powder entering the material tank.

[0009] Furthermore, the interior of the diverter plate is configured as a hollow structure, which is connected to several air guide holes.

[0010] Furthermore, several air guide holes are located on the outside of the filter element and distributed around the circumference of the filter element to allow airflow to enter the interior from the outside of the filter element.

[0011] Furthermore, the bottom of the filter element is connected to a threaded rod, and a through hole is opened in the middle of the top cover corresponding to the threaded rod. The threaded rod passes through the through hole and is locked by a nut threaded to the outside of the threaded rod. The nut is located on the upper part of the top cover.

[0012] Furthermore, a discharge control device is installed at the discharge port at the bottom of the material tank.

[0013] Furthermore, the feeding control device includes an outer shell installed at the bottom of the material tank, with blades rotatably connected inside the outer shell and a motor installed outside the outer shell. The drive end of the motor is connected to the blades through a reducer.

[0014] Furthermore, the top and bottom of the outer shell are respectively provided with a feed inlet and a discharge outlet, and the blades are configured as an "*" shaped structure.

[0015] The beneficial effects of this utility model are:

[0016] 1. By installing a venting and pressure relief pipe at the top of the material tank, and combining it with a first or second powder filter device, dynamic ventilation is achieved during the material feeding process. Compressed air inside the tank can be promptly discharged through the venting and pressure relief pipe during feeding, effectively preventing backflow in the feeding pipe and damage to upstream equipment caused by excessive air pressure. Simultaneously, the gauze or filter element effectively filters the powder in the discharged air, preventing dust leakage and environmental pollution, and ensuring a clean working environment and the health of operators.

[0017] 2. The discharge control device installed at the bottom discharge port of the material tank, driven by a motor to rotate the "*"-shaped blades, can precisely adjust the discharge speed and amount. This structure solves the problems of powder adsorption and poor discharge caused by negative pressure during the discharge of traditional material silos, ensuring uniform and stable discharge of powder, improving the continuity and controllability of subsequent production processes, and is suitable for various production scenarios with requirements for discharge accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the second powder filter device in Embodiment 2 of this utility model;

[0021] Figure 4This is a half-sectional view of the second powder filter device after assembly in Embodiment 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the airflow path within the second powder filter device in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the material feeding control device of this utility model;

[0024] Figure 7 This is a cross-sectional view of the blade inside the outer shell of this utility model.

[0025] In the diagram: 1. Support; 2. Material tank; 21. Feed pipe; 3. Ventilation and pressure relief pipe; 4. First powder filter device; 41. Gauze; 42. Clamp; 5. Second powder filter device; 51. Air inlet pipe; 52. Diverter plate; 53. Air guide hole; 54. Cylinder; 55. Filter element; 56. Threaded rod; 57. Nut; 58. Top cover; 59. Through hole; 510. Exhaust hole; 6. Feed control device; 61. Outer shell; 62. Blade; 63. Motor; 64. Feed inlet; 65. Discharge outlet. Detailed Implementation

[0026] Example 1

[0027] Reference Figure 1 , 6 7. The present invention proposes a ventilated and pressure-relief powder storage silo, comprising a support 1 and a material tank 2 installed on the upper part of the support 1. The support 1 provides stable support for the entire equipment, ensuring that the material tank 2 remains stable during the storage and discharge process. The top of the material tank 2 integrates two key interfaces: one is a feed pipe 21 for inputting powder, and the other is a ventilated and pressure-relief pipe 3 for discharging internal air. The outlet of the feed pipe 21 is connected to the inside of the material tank 2, and the powder enters the material tank 2 through the feed pipe 21. The air inlet of the ventilated and pressure-relief pipe 3 is also connected to the inside of the material tank 2. This design ensures that during the process of powder entering the material tank 2, the original air in the material tank 2 can be discharged in time through the ventilated and pressure-relief pipe 3, avoiding excessive air pressure in the tank that may affect the feeding efficiency or cause safety hazards.

[0028] The outlet of the ventilated pressure relief pipe 3 is connected to the first powder filter device 4. The first powder filter device 4 adopts a simple and practical structural design, including gauze 41 and clamp 42. The gauze 41 is directly covered on the outside of the outlet of the ventilated pressure relief pipe 3. Its function is to filter the powder carried in the discharged air and prevent the powder from leaking out and causing environmental pollution or material waste. The clamp 42 is fixed on the outside of the ventilated pressure relief pipe 3, and firmly locks the gauze 41 at the outlet of the ventilated pressure relief pipe 3 to ensure that the gauze 41 will not fall off when the air is discharged, and at the same time ensure the stability of the filtration effect. The gauze 41 can be replaced periodically, and the cost is low.

[0029] At the discharge port at the bottom of the material tank 2, a feeding control device 6 is installed to precisely control the discharge of powder. The feeding control device 6 consists of an outer shell 61, blades 62, and a motor 63. The outer shell 61 is installed at the bottom of the material tank 2, and its top and bottom are respectively provided with a feed inlet 64 and a discharge outlet 65. The feed inlet 64 is connected to the discharge outlet of the material tank 2. The powder enters the interior of the outer shell 61 from the material tank 2. The blades 62 are rotatably connected inside the outer shell 61. The blades 62 are set with a "*" shaped structure. This structure can effectively cut and push the powder to ensure uniform and smooth discharge. The motor 63 is installed on the outside of the outer shell 61. The drive end of the motor 63 is connected to the blades 62 through a reducer. The operation of the motor 63 drives the blades 62 to rotate inside the outer shell 61, so as to achieve precise control of the feeding speed and feeding amount.

[0030] In this embodiment, when the powder storage silo is in use, and powder is conveyed into the hopper 2 through the feed pipe 21, the air in the hopper 2 is compressed by the powder and flows through the vent pipe 3 to the first powder filter device 4. The powder in the air is filtered and trapped by the gauze 41, and the filtered clean air is discharged to the outside. When it is necessary to discharge the powder, the motor 63 is started. The motor 63 drives the blade 62 to rotate through the reducer. The blade 62 pushes the powder from the feed port 64 to the discharge port 65 for discharge. The discharge speed can be controlled by adjusting the speed of the motor 63.

[0031] Example 2

[0032] Reference Figure 2 , 3 4, 5. The present invention proposes a ventilated and pressure-relief powder storage silo. Compared with the powder storage silo of embodiment 1, the difference lies in the filter device connected to the outlet of the ventilated and pressure-relief pipe 3. This embodiment adopts a second filter device 5 to meet higher filtration requirements, and has a long service life and low replacement frequency. The second filter device 5 includes an air inlet pipe 51, a distribution plate 52, a cylinder 54, a filter element 55, and a top cover 58. The air inlet pipe 51 is connected to the outlet of the ventilated and pressure-relief pipe 3 through a flange to ensure the sealing and stability of the connection. The top of the air inlet pipe 51 is connected to the distribution plate 52. The interior of the distribution plate 52 is a hollow structure, and several air guide holes 53 are opened on the top edge. The hollow structure is connected to the air guide holes 53, so that the airflow entering from the air inlet pipe 51 can be dispersed and discharged through the distribution plate 52.

[0033] The top of the diverter plate 52 is connected to the cylinder 54, and the filter element 55 is fixed inside the cylinder 54. Several air guide holes 53 are located on the outside of the filter element 55 and distributed around the filter element 55. This layout allows the airflow to enter the filter element 55 evenly from the outside, improving the filtration efficiency. When replacing the filter element 55, an air gun can be used to blow air into the inside of the filter element 55, so that the powder adhering to the outer surface of the filter element 55 will be removed from the filter element 55, allowing the filter element 55 to continue to be used. The bottom of the filter element 55 is connected to a threaded rod 56, and the top of the cylinder 54 is connected to a top cover 58. A through hole 59 is opened in the middle of the top cover 58 corresponding to the threaded rod 56. After the threaded rod 56 passes through the through hole 59, it is locked by a nut 57 threaded to the outside of the top cover 58. The nut 57 is located on the top of the top cover 58. This structure not only achieves a stable installation of the filter element 55, but also facilitates disassembly and replacement later. Several exhaust holes 510 are opened inside the top cover 58 corresponding to the air outlet of the filter element 55. The filtered air is discharged to the outside through the exhaust holes 510.

[0034] When the powder storage silo of this embodiment is in use, when the powder enters the hopper 2 through the feed pipe 21, the air inside the hopper enters the air inlet pipe 51 of the second powder filter device 5 through the venting and pressure relief pipe 3. The airflow first enters the hollow structure of the distribution plate 52, and then flows evenly to the outside of the filter element 55 through the air guide hole 53. Subsequently, it seeps into the inside from the outside of the filter element 55. The powder in the air is intercepted by the filter element 55. The filtered clean air flows to the top cover 58 through the air outlet inside the filter element 55 and is discharged through the exhaust hole 510. The feeding process is the same as in embodiment 1. The motor 63 is started to drive the blade 62 to rotate, and the powder is discharged from the discharge port 65. The feeding speed is controlled by adjusting the speed of the motor 63.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ventilated and pressure-relieved powder storage silo, comprising a support frame (1) and a storage tank (2) mounted on the upper part of the support frame (1), characterized in that, The top of the material tank (2) is connected to a venting and pressure relief pipe (3), and the outlet of the venting and pressure relief pipe (3) is connected to a first powder filter device (4) or a second powder filter device (5). The first filter device (4) includes a gauze (41) covering the outside of the air outlet of the ventilator (3), and the gauze (41) is locked by a clamp (42) fixed to the outside of the ventilator (3). The second filter device (5) includes an air inlet pipe (51) connected to a venting and pressure relief pipe (3) via a flange. The top end of the air inlet pipe (51) is connected to a distribution plate (52). Several air guide holes (53) are opened on the edge of the top end of the distribution plate (52). The top end of the distribution plate (52) is connected to a cylinder (54). A filter element (55) is fixed inside the cylinder (54). The top end of the cylinder (54) is connected to a top cover (58). Several exhaust holes (510) are opened inside the top cover (58) at the position corresponding to the air outlet inside the filter element (55).

2. The ventilated and pressure-relieved powder storage silo according to claim 1, characterized in that, The top of the material tank (2) is also connected to the feed pipe (21). The outlet of the feed pipe (21) and the air inlet of the venting and pressure relief pipe (3) are connected to the inside of the material tank (2) so as to discharge the existing air in the material tank (2) during the process of the powder entering the material tank (2).

3. The ventilated and pressure-relief powder storage silo according to claim 1, characterized in that, The interior of the diverter plate (52) is configured as a hollow structure, and the hollow structure is connected to several air guide holes (53).

4. The ventilated and pressure-relieved powder storage silo according to claim 1, characterized in that, Several air guide holes (53) are located on the outside of the filter element (55) and distributed around the filter element (55) to allow airflow to enter the interior from the outside of the filter element (55).

5. The ventilated and pressure-relieved powder storage silo according to claim 1, characterized in that, The bottom of the filter element (55) is connected to a threaded rod (56). A through hole (59) is opened in the middle of the top cover (58) corresponding to the threaded rod (56). The threaded rod (56) passes through the through hole (59) and is locked by a nut (57) threaded to the outside of the threaded rod (56). The nut (57) is located on the upper part of the top cover (58).

6. The ventilated and pressure-relieved powder storage silo according to claim 1, characterized in that, The discharge port at the bottom of the material tank (2) is equipped with a discharge control device (6).

7. The ventilated and pressure-relieved powder storage silo according to claim 6, characterized in that, The feeding control device (6) includes an outer shell (61) installed at the bottom of the material tank (2). The blade (62) is rotatably connected inside the outer shell (61), and a motor (63) is installed outside the outer shell (61). The drive end of the motor (63) is connected to the blade (62) through a reducer.

8. The ventilated and pressure-relieved powder storage silo according to claim 7, characterized in that, The top and bottom of the outer shell (61) are respectively provided with a feed inlet (64) and a discharge outlet (65), and the blade (62) is configured as a "*" shaped structure.

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