Large steel silo bottom pressure reducing device

Abstract

The utility model discloses a large steel silo bottom pressure reducing device, which relates to the field of steel silos and comprises a steel silo, an outer support plate is fixedly connected to the outer side of the steel silo, and an upper inner support frame and a lower inner support frame are fixedly connected to the inner side of the outer support plate; the high-pressure air pump is matched with the crushed aggregate supporting plate, the crushing effect of materials is enhanced, loosening and uniform distribution of the materials are promoted, accumulation of the materials is greatly reduced, in addition, an air film formed by jetting of high-pressure air effectively prevents the materials from adhering to the crushed aggregate supporting plate or the inner walls of other silos, the blocking risk is reduced, and the service life of the silo is prolonged. Smooth of materials in the discharging process is guaranteed, the cleaning scraper blade is driven by the driving motor to continuously stir the materials, adhesion and caking of the materials are effectively destroyed, the caking is prevented from being compacted due to the gravity effect in the long-time storage process, meanwhile, the cleaning scraper blade can clean away material residues attached to the inverted-cone-shaped supporting table in time, and the material storage efficiency is improved. The formation of blocking points is prevented, and the flowability of materials is kept.

Description

Technical Field

[0001] This utility model relates to the technical field of steel silo equipment, and in particular to a bottom pressure relief device for a large steel silo. Background Technology

[0002] A search revealed Chinese patent publication number CN213229942U, which discloses a pressure-reducing device for the bottom of a large powder silo. The device includes a pressure-reducing mechanism installed inside the silo bottom. The device comprises two horizontal mounting rods that cross each other at the center and pass through the side of the silo bottom. The outer ends of the horizontal mounting rods extend beyond the side of the silo bottom and are supported and fixed by a support plate outside the silo. A longitudinal mounting rod is welded below the cross intersection of the two horizontal mounting rods. A vertical shock-absorbing spring rod is welded below the longitudinal mounting rod. A cross-shaped discharge baffle is installed below the shock-absorbing spring rod. The rod is covered with a protective sleeve. A feed baffle is connected to the top of the horizontal mounting rod via a vertical leaf spring. This device is mainly used to depressurize the material flowing to the bottom of the silo, reduce material agglomeration, ensure feeding stability, and ensure the normal operation of the metering device. However, this technical solution cannot prevent material from sticking to the discharge baffle during use, which will greatly reduce work efficiency over a long period of time. At the same time, the crushing of the machine using only the feed baffle and the agitation of the discharge baffle cannot effectively disperse small agglomerated materials, and the effect needs to be improved. Therefore, a large steel silo bottom depressurization device is provided to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to solve the problems mentioned in the background art by providing a pressure reducing device at the bottom of a large steel silo. This device has the advantages of being able to effectively disperse agglomerated materials in conjunction with a high-pressure air pump and providing strong support to the steel silo to achieve pressure reduction, thus solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large steel silo bottom pressure reduction device, comprising: a steel silo, an outer support plate fixedly connected to the outer side of the steel silo, an upper internal support frame and a lower internal support frame fixedly connected to the inner side of the outer support plate, a support leaf spring fixedly connected above the upper internal support frame on the inner side of the steel silo, a crushed material support plate fixedly connected above the support leaf spring, a plurality of air jet holes extending through to the upper part of the crushed material support plate on the inner side, and a set of high-pressure air pumps provided on the outer side of the steel silo, with one end of a connecting pipe fixedly connected to the outlet end of the high-pressure air pumps.

[0005] As a further embodiment of this utility model: a motor support frame is fixedly connected above the lower internal support frame, an inverted conical support platform is fixedly connected above the lower internal support frame, a drive motor is fixedly connected above the motor support frame, and four sets of support arms are fixedly connected to the rotating shaft of the drive motor. A cleaning scraper is fixedly connected to the side of each support arm near the inverted conical support platform.

[0006] As a further improvement of this utility model, four sets of external support plates are provided, which are evenly arranged in a ring array on the outside of the steel plate silo.

[0007] As a further improvement of this utility model: both the upper internal support frame and the lower internal support frame penetrate through the outside of the steel plate silo to its interior.

[0008] As a further improvement of this utility model: the connecting pipe is fixedly connected to the outside of the steel plate silo, and part of the connecting pipe passes through to the upper internal support frame and communicates with the air jet holes set on the inner side of the four sets of crushed material support plates.

[0009] As a further improvement of this utility model: the cleaning scraper is close to the upper surface of the inverted conical support platform, the drive motor is located below the inverted conical support platform, and the rotation shaft of the drive motor passes through the inverted conical support platform to the top of it and is fixedly connected to the four sets of support arms.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In this utility model, the design of a high-pressure air pump in conjunction with a crushing support plate continuously delivers high-pressure gas to the jet holes on the inner side of the crushing support plate, which significantly enhances the crushing effect of the material. It further refines the small pieces of material that were not completely crushed in the initial impact, promotes the loosening and uniform distribution of the material, and greatly reduces the accumulation of material. In addition, the injection of high-pressure gas forms a layer of air film, which effectively prevents the material from sticking to the crushing support plate or other inner walls of the silo, reduces the risk of blockage, ensures the smoothness of the material during the feeding process, and provides a strong guarantee for the efficient operation of the steel plate silo.

[0012] 2. In this utility model, the cleaning scraper driven by the drive motor continuously agitates the material inside the steel plate silo, effectively breaking the adhesion and clumping between materials, keeping the material in a loose state, and avoiding the problem of compaction and clumping due to gravity during long-term storage. At the same time, while agitating the material, the cleaning scraper can also promptly remove the material residue attached to the inverted conical support platform, preventing the formation of blockage points and maintaining the fluidity of the material. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2This is a schematic diagram of the supporting leaf spring in this utility model;

[0015] Figure 3 This is a schematic diagram of the connecting pipe in this utility model;

[0016] Figure 4 This is a schematic diagram of the drive motor in this utility model.

[0017] In the diagram: 1. Steel silo; 2. Outer support plate; 3. Upper internal support frame; 4. Lower internal support frame; 5. Support leaf spring; 6. Crusher support plate; 7. Air jet; 8. High-pressure air pump; 9. Connecting pipe; 10. Motor support frame; 11. Inverted conical support platform; 12. Drive motor; 13. Support arm; 14. Cleaning scraper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0020] Reference Figures 1 to 4In this embodiment of the present invention, a large steel silo bottom pressure reduction device includes: a steel silo 1, an outer support plate 2 fixedly connected to the outside of the steel silo 1, four sets of outer support plates 2 being evenly arranged in a ring array on the outside of the steel silo 1, an upper internal support frame 3 and a lower internal support frame 4 fixedly connected to the inside of the outer support plate 2, both the upper internal support frame 3 and the lower internal support frame 4 penetrating the outside of the steel silo 1 to its interior, a support leaf spring 5 fixedly connected above the upper internal support frame 3 on the inside of the steel silo 1, a crushed material support plate 6 fixedly connected above the support leaf spring 5, multiple sets of air jet holes 7 penetrating to its upper side on the inside of the crushed material support plate 6, a set of high-pressure air pumps 8 on the outside of the steel silo 1, a connecting pipe 9 fixedly connected to the outlet end of the high-pressure air pump 8, part of the connecting pipe 9 being fixedly connected to the outside of the steel silo 1, and part of the connecting pipe 9 penetrating to the upper internal support frame 3 and communicating with the air jet holes 7 on the inside of the four sets of crushed material support plates 6.

[0021] The above scheme is adopted: when the material is poured into the steel silo 1, the falling material first falls on the crushing support plate 6, and impacts the crushing support plate 6 to crush some of the material, reducing the agglomeration rate of the material. During this process, the support leaf spring 5 can provide cushioning for the crushing support plate 6 after being impacted. At the same time, the design of the support leaf spring 5 provides continuous vibration during the process of the material impacting the crushing support plate 6, shaking off some of the material that may be attached to the surface of the crushing support plate 6.

[0022] Reference Figure 2 and Figure 4 A motor support frame 10 is fixedly connected above the lower internal support frame 4. An inverted conical support platform 11 is fixedly connected above the lower internal support frame 4. A drive motor 12 is fixedly connected above the motor support frame 10. Four sets of support arms 13 are fixedly connected to the rotating shaft of the drive motor 12. A cleaning scraper 14 is fixedly connected to the side of the support arm 13 near the inverted conical support platform 11. The cleaning scraper 14 is close to the upper surface of the inverted conical support platform 11. The drive motor 12 is located below the inverted conical support platform 11. The rotating shaft of the drive motor 12 passes through the inverted conical support platform 11 and is fixedly connected to the four sets of support arms 13 above it.

[0023] Using the above solution: During the storage of materials in the steel silo 1, due to its relatively high height, the silo 1 may experience significant pressure on its bottom. This can lead to material agglomeration and blockage at the bottom of the silo, and also negatively impact the silo's service life. The inverted conical support platform 11 effectively disperses the pressure of the material on the silo bottom, resulting in a more uniform pressure distribution. This reduces material agglomeration and blockage caused by excessive local pressure. Furthermore, the shape of the inverted conical support platform 11 helps improve material flowability. Due to the conical inclination, the material experiences a downward force during flow. The force distribution helps the material to be discharged more smoothly from the steel silo 1, reducing the risk of material blockage. During the feeding process, the drive motor 12 can be started, and the support arm 13 and the cleaning scraper 14 continuously agitate the material inside the steel silo 1 and scrape the outer surface of the inverted conical support platform 11. During the continuous agitation of the material, the cleaning scraper 14 can effectively break the adhesion and agglomeration between materials, making the material looser and easier to flow. At the same time, during the scraping of the outer surface of the inverted conical support platform 11, the cleaning scraper 14 can also remove the material residue attached to the support platform to a certain extent, preventing these residues from hindering the normal flow of the material.

[0024] The working principle of this utility model is as follows: When using the steel plate silo 1 to store materials, the materials are poured into the interior of the steel plate silo 1. The falling materials first come into contact with the top of the crushing support plate 6. The materials collide with the crushing support plate 6, and most of the materials are crushed, thereby reducing the agglomeration rate of the materials. At the same time, the design of the support plate spring 5 causes the materials to vibrate continuously during the process of colliding with the crushing support plate 6, shaking off the materials that may be attached to the surface of the crushing support plate 6.

[0025] At the same time, the high-pressure air pump 8 starts and delivers high-pressure gas to the jet hole 7 inside the crushing support plate 6 through the connecting pipe 9. The high-pressure gas is ejected from the jet hole 7, which can further help crush the material and promote the loosening and uniform distribution of the material. At the same time, the high-pressure gas can also prevent the material from sticking to the crushing support plate 6 and affecting the working efficiency of the crushing support plate 6.

[0026] As materials are continuously poured in, when the materials are stored to a certain height in the steel silo 1, the inverted conical support platform 11 begins to bear the pressure of the materials. The design of the inverted conical support platform 11 effectively disperses the pressure of the materials on the bottom of the silo, making the pressure distribution more uniform. At the same time, the shape of the inverted conical support platform 11 improves the flowability of the materials. During the flow process, the materials are subjected to a downward component force, which helps the materials to be discharged from the steel silo 1 more smoothly.

[0027] During the storage or unloading of materials in the steel silo 1, the drive motor 12 can be started. The rotating shaft of the drive motor 12 drives the cleaning scraper 14 through the support arm 13 to continuously stir the materials inside the steel silo 1. The cleaning scraper 14 effectively breaks the adhesion and agglomeration between materials, making the materials looser and easier to flow. At the same time, as the cleaning scraper 14 scrapes the outer surface of the inverted conical support platform 11, it removes the material residues attached to the support platform, effectively preventing the residues from hindering the normal flow of materials.

[0028] 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 large steel plate silo bottom pressure reduction device, characterized by, Include: Steel plate silo (1), the outer side fixedly connected with outer support plate (2), the inner side of outer support plate (2) is fixedly connected with upper internal support frame (3) and lower internal support frame (4), the inner side of steel plate silo (1) is fixedly connected with support plate spring (5) above upper internal support frame (3), the upper side of support plate spring (5) is fixedly connected with broken material support plate (6), the inner side of broken material support plate (6) is provided with multiple groups of jet orifices (7) penetrating to its upper side, the outer side of steel plate silo (1) is provided with a group of high-pressure air pump (8), one end of the gas outlet end of high-pressure air pump (8) is fixedly connected with connecting pipe (9).

2. A large steel silo bottom pressure relief device according to claim 1, characterized in that, The upper side of lower internal support frame (4) is fixedly connected with motor support frame (10), the upper side of lower internal support frame (4) is fixedly connected with inverted conical support table (11), the upper side of motor support frame (10) is fixedly connected with driving motor (12), the rotating shaft of driving motor (12) is fixedly connected with four groups of support arms (13), the side of support arm (13) close to inverted conical support table (11) is fixedly connected with cleaning scraper (14).

3. A pressure relief device for the bottom of a large steel silo according to claim 1, characterized in that, The number of outer support plate (2) is four, which is evenly arranged in annular array on the outer side of steel plate silo (1).

4. A pressure relief device for the bottom of a large steel silo according to claim 1, characterized in that, The upper internal support frame (3) and lower internal support frame (4) all penetrate the outer side of steel plate silo (1) to its inside.

5. A pressure relief device for the bottom of a large steel silo according to claim 1, characterized in that, Part of connecting pipe (9) is fixedly connected on the outer side of steel plate silo (1), and part of connecting pipe (9) penetrates to upper internal support frame (3) and communicates with the jet orifices (7) provided in the inner side of four groups of broken material support plate (6).

6. A pressure relief device for the bottom of a large steel silo according to claim 2, characterized in that, The upper surface of cleaning scraper (14) is close to inverted conical support table (11), the driving motor (12) is below inverted conical support table (11), the rotating shaft of driving motor (12) penetrates inverted conical support table (11) to its upper side and is fixedly connected with four groups of support arms (13).

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