Anti-blocking powder discharging device

Abstract

The utility model relates to an anti-blocking powder blanking device which is characterized in that the anti-blocking powder blanking device comprises a straight storage bin, an eccentric bin and a plurality of porous fluidizers, the eccentric bin is connected to the lower side of the straight storage bin, an opening in the upper end of the eccentric bin is communicated with an opening in the lower end of the straight storage bin, and the porous fluidizers are connected to the side face of the eccentric bin. An air inlet of the porous fluidizer is connected with an air inlet pipe, and the bottom of the eccentric stock bin is connected with a discharging valve through an adapter; the porous fluidizer comprises a fluidizer body extending into the eccentric stock bin, the fluidizer body comprises an arc-shaped porous plate and a circular mounting plate, an air guide cavity is defined by the arc-shaped porous plate and the circular mounting plate, a plurality of air outlet holes communicated with the air guide cavity are formed in the arc-shaped porous plate, and the air outlet holes are further communicated with an inner cavity of the eccentric stock bin. The utility model has the beneficial effects that the porous fluidizer is inflated to enable airflow to enter the eccentric stock bin, so that the flowability of materials can be effectively improved, the problems of caking and blocking of the materials are solved, and the blanking speed is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of pyrotechnics production technology, specifically to an anti-clogging powder feeding device. Background Technology

[0002] In the production of pyrotechnics, relatively low pressure is required to induce sliding between particles in the powder raw material, resulting in tighter filling, reduced volume, and further compression. This compression leads to decreased particle distance, particle breakage, and increased new surface area, resulting in increased interparticle bonding and ultimately the formation of tablets. During the conveying of powder raw materials, blockage is prone to occur. Current technologies employ stirring mechanisms in the feed channel to reduce the likelihood of blockage. However, for highly viscous materials that easily agglomerate and have poor flowability, blockage is particularly likely to occur at locations with gentle slopes in the feeding device and at diameter changes, especially at smaller diameter points. Even with eccentric hoppers and the addition of stirring blades and vibrators, the blockage problem remains unresolved, significantly impacting feeding efficiency. Furthermore, the stirring device occupies considerable space in the feed channel. Summary of the Invention

[0003] In order to overcome at least some of the defects in the prior art, this utility model provides an anti-clogging powder feeding device that occupies little space and uses airflow to blow the powder to reduce the probability of powder clogging and improve the feeding rate.

[0004] This utility model relates to an anti-clogging powder feeding device, including a straight cylindrical storage silo, an eccentric silo, and several porous fluidizers. The eccentric silo is connected to the lower side of the straight cylindrical storage silo, and the opening at the upper end of the eccentric silo is connected to the opening at the lower end of the straight cylindrical storage silo. The porous fluidizers are connected to the side of the eccentric silo, and the air inlet of the porous fluidizers is connected to an air inlet pipe. The bottom of the eccentric silo is connected to a feeding valve through an adapter.

[0005] The porous fluidizer includes a fluidizer body extending into the eccentric hopper. The fluidizer body includes an arc-shaped porous plate and a circular mounting plate. The arc-shaped porous plate and the circular mounting plate surround and form an air guide cavity. The arc-shaped porous plate has a plurality of air outlets that communicate with the air guide cavity. The air outlets also communicate with the inner cavity of the eccentric hopper.

[0006] Furthermore, the porous fluidizer also includes a connecting pipe that communicates with the air guide chamber. A gasket and a sealing ring are fitted onto the connecting pipe. A fixing nut is threaded onto the connecting pipe. The fixing nut is located outside the sealing ring and contacts the fixing nut. The air inlet pipe is connected to the connecting pipe.

[0007] Furthermore, the adapter is connected to the eccentric hopper and the discharge valve via a chuck, respectively.

[0008] Furthermore, the straight cylindrical storage silo has a height of 0.5m-1.5m, a diameter of 0.3m-0.4m, and a wall thickness of 0.003m. The lower end of the straight cylindrical storage silo is connected to the eccentric silo via a chuck.

[0009] Furthermore, the eccentric hopper has a height of 0.7m-0.9m, an upper diameter of 0.3m-0.4m, a lower diameter of 0.1m-0.2m, and a wall thickness of 0.003m.

[0010] Furthermore, the diameter of the circular mounting plate is 0.03m-0.2m, and the diameter of the vent hole is 3μm-10μm.

[0011] Furthermore, the air intake pipe is a #4 air pipe.

[0012] Furthermore, the adapter has a height of 0.05m-0.1m and a diameter of 0.1m-0.2m.

[0013] Furthermore, the diameter of the feeding valve is 0.1m-0.2m.

[0014] The advantages of this invention are: it improves upon the original feeding device by removing the stirring mechanism and adding several porous fluidizers. By filling the porous fluidizers with air, the airflow enters the eccentric hopper, impacting and disturbing the powder in the eccentric hopper, which can effectively improve the flowability of the material, thereby solving the problem of material agglomeration and blockage, and accelerating the feeding speed.

[0015] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the anti-clogging powder feeding device.

[0018] Figure 2 This is a schematic diagram of a porous fluidizer. Detailed Implementation

[0019] 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.

[0020] A preferred embodiment of the present invention provides a powder feeding device for preventing blockage, comprising a straight cylindrical storage silo 1, an eccentric silo 2, and several porous fluidizers 3. The eccentric silo 2 is connected to the lower side of the straight cylindrical storage silo 1, and the opening at the upper end of the eccentric silo 2 is connected to the opening at the lower end of the straight cylindrical storage silo 1. The porous fluidizers 3 are connected to the side of the eccentric silo 2, and the air inlet of the porous fluidizers 3 is connected to an air inlet pipe 4. The bottom of the eccentric silo 2 is connected to a feeding valve 5 via an adapter 6.

[0021] The porous fluidizer 3 includes a fluidizer body 31 extending into the eccentric hopper 2. The fluidizer body 31 includes an arc-shaped porous plate 311 and a circular mounting plate 312. The arc-shaped porous plate 311 and the circular mounting plate 312 surround and form an air guide cavity. The arc-shaped porous plate 311 has several air outlets that communicate with the air guide cavity. The air outlets are also connected to the inner cavity of the eccentric hopper 2.

[0022] In the above embodiment, the porous fluidizer 3 further includes a connecting pipe 32, which is connected to the air guide chamber. A washer 33 and a sealing ring 34 are fitted on the connecting pipe 32. A fixing nut 35 is threadedly connected to the connecting pipe 32. The washer 33 is located outside the sealing ring 34 and contacts the fixing nut 35. The air inlet pipe 4 is connected to the connecting pipe 32.

[0023] In the above embodiment, the adapter 6 is connected to the eccentric hopper 2 and the discharge valve 5 via a chuck. In actual implementation, the eccentric hopper 2, the discharge valve 5, and the adapter 6 are all made of stainless steel.

[0024] In the above embodiment, the height of the cylindrical storage silo 1 is 0.5m-1.5m, the diameter is 0.3m-0.4m, and the wall thickness is 0.003m. The lower end of the cylindrical storage silo 1 is connected to the eccentric silo 2 via a chuck.

[0025] In the above embodiment, the eccentric hopper 2 has a height of 0.7m-0.9m, an upper diameter of 0.3m-0.4m, a lower diameter of 0.1m-0.2m, and a wall thickness of 0.003m.

[0026] In the above embodiment, the diameter of the circular mounting plate 312 is 0.03m-0.2m, and the diameter of the vent hole is 3μm-10μm. Under a pressure of 0.05bar-0.3bar, the gas flow rate through the vent hole is 10 m³ / s. 3 / h-30m 3 / h.

[0027] In the above embodiment, the air intake pipe 4 is the 4# air pipe.

[0028] In the above embodiment, the height of the adapter 6 is 0.05m-0.1m and the diameter is 0.1m-0.2m.

[0029] In the above embodiment, the diameter of the feeding valve 5 is 0.1m-0.2m. The feeding rate is 0.10m / s. 3 / h-0.40m 3 / h.

[0030] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A powder feeding device for preventing blockage, characterized in that: It includes a straight cylindrical storage silo, an eccentric silo, and several porous fluidizers. The eccentric silo is connected to the lower side of the straight cylindrical storage silo, and the opening at the upper end of the eccentric silo communicates with the opening at the lower end of the straight cylindrical storage silo. The porous fluidizers are connected to the side of the eccentric silo, and the air inlet of the porous fluidizers is connected to an air inlet pipe. The bottom of the eccentric silo is connected to a discharge valve through an adapter. The porous fluidizer includes a fluidizer body extending into the eccentric hopper. The fluidizer body includes an arc-shaped porous plate and a circular mounting plate. The arc-shaped porous plate and the circular mounting plate surround and form an air guide cavity. The arc-shaped porous plate has a plurality of air outlets that communicate with the air guide cavity. The air outlets also communicate with the inner cavity of the eccentric hopper.

2. The anti-clogging powder feeding device according to claim 1, characterized in that: The porous fluidizer also includes a connecting pipe that communicates with the air guide chamber. A gasket and a sealing ring are fitted onto the connecting pipe. A fixing nut is threaded onto the connecting pipe. The fixing nut is located outside the sealing ring and contacts the fixing nut. The air inlet pipe is connected to the connecting pipe.

3. The anti-clogging powder feeding device according to claim 1, characterized in that: The adapter is connected to the eccentric hopper and the discharge valve via a chuck, respectively.

4. The anti-clogging powder feeding device according to claim 1, characterized in that: The straight cylindrical storage silo has a height of 0.5m-1.5m, a diameter of 0.3m-0.4m, and a wall thickness of 0.003m. The lower end of the straight cylindrical storage silo is connected to the eccentric silo via a chuck.

5. The anti-clogging powder feeding device according to claim 1, characterized in that: The eccentric hopper has a height of 0.7m-0.9m, an upper diameter of 0.3m-0.4m, a lower diameter of 0.1m-0.2m, and a wall thickness of 0.003m.

6. The anti-clogging powder feeding device according to claim 1, characterized in that: The diameter of the circular mounting plate is 0.03m-0.2m, and the diameter of the vent hole is 3μm-10μm.

7. The anti-clogging powder feeding device according to claim 1, characterized in that: The diameter of the air intake pipe is 0.003m-0.008m.

8. The anti-clogging powder feeding device according to claim 1, characterized in that: The adapter has a height of 0.05m-0.1m and a diameter of 0.1m-0.2m.

9. The anti-clogging powder feeding device according to claim 1, characterized in that: The diameter of the discharge valve is 0.1m-0.2m.

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