Anti-static conductive device for energetic powder storage bin

Abstract

The utility model relates to a kind of anti-static conductive device for energetic powder storage bin, comprising: storage bin, support installed in storage bin and anti-static conductive plate installed on support and obliquely arranged, the cross section of anti-static conductive plate is continuous smooth arc surface, surface is electrostatically treated, anti-static conductive plate is located just below the pouring mouth of storage bin, material poured into storage bin falls on anti-static conductive plate and is guided by anti-static conductive plate to the inside of storage bin, by increasing contact area to promote static electricity dissipation, while the arc surface of anti-static conductive plate guides powder to slide into bin in laminar flow form, reduces drop height and impact energy;The utility model has the advantages that: by increasing anti-static conductive plate for reducing pouring drop in energetic powder storage bin, to reduce electrostatic, dust combustion and explosion accident and other hazards in the process of energetic powder pouring, and anti-static conductive plate enhances the contact area with energetic powder, enhances the effect of anti-static, electrostatic conduction.

Description

Technical Field

[0001] This utility model belongs to the field of safety technology for filling energetic materials, specifically relating to an anti-static flow guiding device for a storage silo containing energetic powders (such as explosives). Background Technology

[0002] Explosive storage is a crucial step in ammunition production. With the increasing automation of ammunition production, current transfer and storage processes are largely automated. For example, in the current process of transferring explosives from bags into storage silos, the bags need to be poured into the silos. However, in current energetic powder storage silos, the powder falls directly from a height to the bottom of the silo during the pouring process, creating a high-drop impact. This process easily accumulates static electricity and can trigger an explosion. Current technology lacks optimized designs for static electricity dissipation in the middle of the pouring path. Therefore, there is an urgent need for an anti-static flow guiding device for energetic powder storage silos. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide an anti-static flow guiding device for energetic powder storage silos, which solves the technical problem of static electricity accumulation and explosion caused by high drop during the tilting process of energetic powder storage silos, so as to overcome the shortcomings of the above-mentioned prior art.

[0004] This utility model provides an antistatic flow guiding device for energetic powder storage silos, comprising: a storage silo, a support installed inside the storage silo, and an antistatic flow guiding plate installed on the support and inclined. The cross-section of the antistatic flow guiding plate is a continuous smooth arc surface (such as a circular arc, elliptical arc, or parabolic arc), and the surface is treated with antistatic properties. The antistatic flow guiding plate is located directly below the pouring port of the storage silo. The material poured into the storage silo falls onto the antistatic flow guiding plate. The antistatic flow guiding plate increases the contact area and promotes the dissipation of static electricity. At the same time, the arc surface of the antistatic flow guiding plate guides the powder to slide into the silo in a laminar flow form.

[0005] As a preferred embodiment of this utility model, the bracket includes: an upper frame, a set of outer edge fixing plates fixed to the upper frame, and a set of connecting rods connecting the upper frame and the antistatic guide plate. The set of outer edge fixing plates is bolted to the outer edge of the material inlet of the storage bin, the upper end of the set of connecting rods is fixed to the upper frame, and the lower end of the set of connecting rods is fixed to the antistatic guide plate.

[0006] As a preferred embodiment of this utility model, the upper frame is a ring structure, including but not limited to circular rings and square rings.

[0007] As a preferred embodiment of this utility model, the antistatic guide plate is a circular arc, an elliptical arc, a parabolic arc, or a combination of various shapes forming a continuous smooth arc surface, and the surface is treated with antistatic properties.

[0008] As a preferred embodiment of this invention, the surface of the antistatic guide plate is provided with an antistatic coating, the resistance of which is ≤10 Ω. 6 Ω.

[0009] As a preferred embodiment of this invention, the inclination angle of the antistatic guide plate is 30°-60°.

[0010] As a preferred embodiment of this invention, the connecting rod is a telescopic rod.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model reduces the hazards of electrostatic combustion and explosion accidents during the dumping of energetic powder by adding an antistatic guide plate to the energetic powder storage silo to reduce the drop height during dumping. The antistatic guide plate is made of a circular arc, elliptical arc or parabolic arc to increase the contact area with the energetic powder.

[0013] 2. The antistatic guide plate of this utility model has an arc-shaped flow guiding structure with an inclination angle of 30°-60° (material accumulation occurs at <30°, speed control fails at >60°). Its cross-section is a continuous smooth arc surface (circular arc / elliptical arc / parabolic arc). It suppresses static electricity through a dual synergistic mechanism, and the arc surface design increases the contact area when energetic powder impacts, promoting static dissipation. It can also control the powder to slide into the bin at a uniform laminar flow velocity.

[0014] Inside, to avoid static electricity regeneration caused by turbulence.

[0015] 3. The bracket of this utility model adopts a modular connection structure consisting of an upper frame, connecting rods and an outer edge fixing plate, which realizes the precise positioning and quick assembly and disassembly of the guide plate. The outer edge fixing plate is connected to the material inlet of the storage bin by bolts and has an impact-resistant rigid structure. The length of the connecting rod is adjustable to adapt to different bin depths.

[0016] 4. Compared with the traditional free-fall tilting method, the static electricity accumulation of this utility model is reduced by more than 80%. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the bracket and antistatic guide plate of this utility model.

[0019] Reference numerals in the attached diagram: 1-Storage bin, 2-Support, 3-Antistatic flow guide plate, 4-Upper frame, 5-Outer edge fixing plate, 6-Connecting rod. Detailed Implementation

[0020] See Figure 1-2As shown in this embodiment, an antistatic flow guiding device for an energetic powder storage silo includes: a storage silo 1, a support 2 installed inside the storage silo 1, and an antistatic flow guiding plate 3 installed on the support 2 and inclined. The cross-section of the antistatic flow guiding plate 3 is an arc surface of a circle, an ellipse, or a parabolic arc. The antistatic flow guiding plate 3 is located directly below the pouring port of the storage silo 1. The material poured into the storage silo 1 falls onto the antistatic flow guiding plate 2 and is guided into the interior of the storage silo 1 by the antistatic flow guiding plate 2. The support 2 includes: a circular or elliptical upper frame 4, a set of outer edge fixing plates 5 fixed to the upper frame 4, and a set of connecting rods 6 connecting the upper frame 4 and the antistatic flow guiding plate 3. The outer edge fixing plates 5 are bolted to the inlet flange of the storage silo 1. The upper end of the set of connecting rods 6 is fixed to the upper frame 4, and the lower end of the set of connecting rods 6 is fixed to the antistatic flow guiding plate 3. The length of the connecting rods 6 is adjustable to achieve the positioning of the antistatic flow guiding plate 3.

[0021] Furthermore, in this embodiment, the surface of the antistatic guide plate 3 is coated with a resistance value ≤ 10. 6 The Ω antistatic coating ensures that static electricity dissipates promptly upon contact with energetic powder; the curved surface design allows powder to slide smoothly along the surface after impact, significantly reducing the falling speed; the bracket achieves overall stable installation through a layered connection structure (upper frame - connecting rod - outer edge fixing plate).

[0022] Working principle: Energetic powder falls from the pouring port and impacts the center of the arc surface of the antistatic guide plate 3. It is then dispersed into a uniform flow along the arc surface and slides into the bottom of the storage bin. During this process, the arc surface increases the contact area of ​​the powder and promotes the release of static electricity; the sliding motion avoids the generation of new static charges by turbulence.

[0023] The above are merely specific embodiments 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 scope of the claims.

Claims

1. An antistatic flow guiding device for energetic powder storage silos, characterized in that, include: The storage silo, the support installed inside the storage silo, and the antistatic guide plate installed on the support and inclined. The cross-section of the antistatic guide plate is a continuous smooth arc surface. The antistatic guide plate is located directly below the pouring port of the storage silo. The material poured into the storage silo falls on the antistatic guide plate. The antistatic guide plate increases the contact area and promotes the dissipation of static electricity. At the same time, the arc surface of the antistatic guide plate guides the powder to slide into the silo in a laminar flow.

2. The antistatic flow guiding device for an energetic powder storage silo according to claim 1, characterized in that, The support includes: an upper frame, a set of outer edge fixing plates fixed to the upper frame, and a set of connecting rods connecting the upper frame and the antistatic flow guide plate. The set of outer edge fixing plates is bolted to the outer edge of the material inlet of the storage bin. The upper end of the set of connecting rods is fixed to the upper frame, and the lower end of the set of connecting rods is fixed to the antistatic flow guide plate.

3. The antistatic flow guiding device for an energetic powder storage silo according to claim 2, characterized in that, The upper frame is a ring structure, including circular rings and square rings.

4. The antistatic flow guiding device for an energetic powder storage silo according to claim 2, characterized in that, The antistatic guide plate is a continuous smooth arc surface, such as a circular arc, an elliptical arc, a parabolic arc, or a combination of various shapes.

5. The antistatic flow guiding device for an energetic powder storage silo according to claim 1, characterized in that, The surface of the antistatic guide plate is coated with an antistatic coating.

6. The antistatic flow guiding device for an energetic powder storage silo according to claim 1, characterized in that, The tilt angle of the antistatic guide plate is 30°-60°.

7. The antistatic flow guiding device for an energetic powder storage silo according to claim 2, characterized in that, The connecting rod is a telescopic rod.

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