Powder bridging prevention device

Abstract

The utility model discloses a kind of powder anti-bridging devices, it is related to hopper technical field.The device, comprising: setting in the anti-bridging mechanism of hopper body bottom;Anti-bridging mechanism includes: setting in the fixed shaft of hopper body discharge passage place, and, swing piece is set and is rotatedly connected with fixed shaft along discharge passage direction;The top of swing piece is provided with agitating part, and its bottom is provided with power part, and power part is inverted V-shaped structure;Wherein, when powder falling impact generates power action on power part, power part drives swing piece swing, and simultaneously drives agitating part to agitate the material of hopper body bottom.The structure utilizes material self-weight energy drive, without external power supply, with simple structure, easy to maintain, energy consumption is low and anti-bridging effect is remarkable and the like beneficial effect.

Description

Technical Field

[0001] This utility model relates to the field of hopper technology, and in particular to a powder anti-bridging device. Background Technology

[0002] In the existing process of storing, transporting and discharging powder or granular materials, temporary storage and gravity discharge are usually completed through hoppers.

[0003] However, for materials with small particle size, high moisture content, or large surface roughness, "bridging" or "arching" phenomena often occur at the bottom discharge channel of the hopper. Bridging refers to the formation of a stable arc-shaped structure between material particles under the action of gravity and friction, which blocks the lower channel and prevents the hopper from discharging material smoothly.

[0004] To prevent the above problems, the following methods are often used in the prior art: vibration anti-clogging structure, which uses a vibrating motor or electromagnetic vibrator installed on the outer wall of the hopper to periodically vibrate the hopper; airflow impact structure, which uses gas jet or backflush airbag to periodically disturb the material at the bottom; mechanical agitation structure, which uses stirring blades or agitation mechanism installed at the bottom of the hopper, driven by an external motor to break up material bridging.

[0005] However, the above solutions generally have the following shortcomings: (1) Vibration-type structures rely on motor drives, which consume a lot of energy, generate a lot of noise, and the motor is easily damaged in high dust environments; (2) The airflow structure requires a gas source system, which is complex and has high maintenance costs, and is not suitable for pressureless environments; (3) Mechanical agitation type structures often require independent power sources and sealed transmission components, which are complex in structure, difficult to install, and prone to failure under high temperature or strong corrosive material conditions.

[0006] Therefore, how to generate disturbance by utilizing the kinetic energy of the falling material itself without relying on external drive, and thus prevent bridging of the hopper, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] Purpose of the utility model: To provide a powder anti-bridging device to at least solve one of the problems existing in the prior art.

[0008] Technical solution: A powder anti-bridging device, comprising: an anti-bridging mechanism disposed at the bottom of the hopper body; The anti-bridging mechanism includes: a fixed shaft disposed at the discharge channel of the hopper body, and a swinging member disposed along the discharge channel and rotatably connected to the fixed shaft; The top of the swinging component is provided with a stirring part, and the bottom of the component is provided with a power part, which has an inverted V-shaped structure. When the powder falls and impacts, it generates power that acts on the power unit. The power unit drives the swinging component to swing, and simultaneously drives the stirring unit to stir the material at the bottom of the hopper body.

[0009] Preferably, the oscillating component further includes: a transmission part, a rotating part, and an oscillating part; the rotating part is located between the transmission part and the oscillating part and is rotatably connected to the fixed shaft; the transmission part extends upward into the hopper body, the oscillating part extends downward into the discharge channel, and its end is connected to the power part; The two inclined surfaces of the V-shape of the power unit are arranged symmetrically with respect to the axis of the swing unit.

[0010] Preferably, one end of the fixed shaft is connected to the inner wall of the discharge channel, and the other end extends into the discharge channel.

[0011] Preferably, the agitating part is a plurality of outwardly extending filamentous hooks.

[0012] Preferably, at least two filamentous hooks are provided and symmetrically arranged at the end of the transmission part.

[0013] Preferably, the included angle α between the swinging part and the power part is 150°-160°.

[0014] Preferably, the length ratio between the transmission part and the swing part is 1:2 to 1:4.

[0015] Preferably, the surface of the power unit has an anti-stick layer.

[0016] Preferably, the rotating part is rotatably connected to the fixed shaft via a bearing; the inclined surface is arranged along the rotation direction of the bearing.

[0017] Preferably, a reinforcing rib is provided between the inclined surfaces of the power unit.

[0018] Beneficial effects: In this embodiment, an anti-bridging mechanism is set at the bottom of the hopper body and rotatably connected to the swinging component via a fixed shaft. An inverted V-shaped power unit is set at the lower end of the swinging component. When the material falls, its impact force acts on the inclined surface of the power unit, driving the swinging component to reciprocate around the fixed shaft. This drives the transmission unit to disturb the material, achieving automatic stirring and anti-blocking without external power. This achieves the technical effect of continuous loosening of the material inside the hopper, smooth material discharge, and avoidance of arch bridge structure at the discharge port. It also solves the problem of bridging, material blockage, and impact on continuous discharge of existing hoppers during the discharge of powder or granular materials. Attached Figure Description

[0019] Figure 1 This is an installation side view of the powder anti-bridging device of this utility model; and Figure 2This is the front view of the powder anti-bridging device of this utility model.

[0020] The attached figures are labeled as follows: 1. Hopper body; 11. Discharge channel; 2. Anti-bridging mechanism; 3. Fixed shaft; 4. Oscillating component; 41. Transmission part; 42. Rotating part; 43. Oscillating part; 44. Power part; 441. Inclined surface; 442. Reinforcing rib; 45. Agitating part; 46. Bearing. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-2As shown, this application relates to a powder anti-bridging device. The powder anti-bridging device includes an anti-bridging mechanism 2 disposed at the bottom of the hopper body 1. The hopper body 1 has a conical or polygonal pyramidal structure, and its bottom is provided with a discharge channel 11 for discharging materials.

[0026] The anti-bridging mechanism 2 is installed at the bottom of the hopper body 1 to generate disturbance during the material falling process, so as to prevent the formation of "arch bridges" or "bridging" blockages at the bottom of the hopper by powdery or fine particles.

[0027] Specifically, the anti-bridging mechanism 2 includes: a fixed shaft 3 disposed at the discharge channel 11, and a swing member 4 disposed along the direction of the discharge channel 11 and rotatably connected to the fixed shaft 3.

[0028] The top of the swing member 4 is provided with a stirring part 45, and the bottom of the swing member 4 is provided with a power part 44, which has an inverted V-shaped structure. Preferably, the power unit 44 has arc-shaped portions on both sides near its bottom. This allows it to prevent material accumulation without affecting the power supply.

[0029] When the powder falls and impacts, it generates power that acts on the power unit 44. The power unit 44 drives the swinging member 4 to swing, and simultaneously drives the stirring unit 45 to stir the material at the bottom of the hopper body 1.

[0030] Specifically, the swinging component 4 includes: a transmission part 41, a rotating part 42, a swinging part 43, and a power part 44.

[0031] The rotating part 42 is located between the transmission part 41 and the swing part 43, and is rotatably connected to the fixed shaft 3; the transmission part 41 extends upward into the inside of the hopper body 1 to agitate the material layer; the swing part 43 extends downward into the discharge channel 11, and its lower end is connected to the power part 44.

[0032] The power unit 44 is an inverted V-shaped structure, with the two inclined surfaces 441 of the V-shape arranged symmetrically with respect to the axis of the swing unit 43.

[0033] Preferably, the weight of the swing part 43 and the power part 44 is greater than the weight of the transmission part 41; thereby ensuring that the power part 44 is always below the rotating part 42.

[0034] When the material falls from above, the impact force acts on the two inclined surfaces 441, generating a driving force along the rotation direction of the fixed shaft 3, thereby driving the swinging member 4 to swing back and forth around the fixed shaft 3, and then driving the transmission part 41 and the stirring part 45 to disturb the material through the swinging part 43.

[0035] By converting the impact energy of the material into oscillating torque through an inverted V-shaped power unit, self-excited oscillation without external electric drive is achieved, thereby effectively preventing hopper bridging while simplifying the structure.

[0036] like Figure 1 As shown, one end of the fixed shaft 3 is fixedly connected to the inner wall of the discharge channel 11, and the other end extends into the discharge channel 11. It is understood that the fixed shaft 3 can be a stainless steel cylindrical shaft with anti-corrosion treatment on its outer surface to adapt to high humidity or high dust environments. Simultaneously, this single-end fixed, cantilevered arrangement provides sufficient swing space for the swinging component 4, resulting in a simple installation structure and strong on-site adaptability.

[0037] Furthermore, the stirring part 45 comprises multiple outwardly extending filamentous claws. It is understood that this enables effective stirring of the material.

[0038] Furthermore, at least two of the filamentous hooks are provided, symmetrically arranged at the end of the transmission part 41. In this embodiment, the hooks can be made of elastic stainless steel wire or carbon fiber wire. During the swinging process, the hooks agitate the material at the bottom of the hopper, which can further disrupt the arch bridge structure and reduce material adhesion.

[0039] In this embodiment, the included angle α between the swing unit 43 and the power unit 44 is set to 150°-160°. It can be understood that by setting the included angle within the above range, the swing response sensitivity can be improved, enabling the device to generate stable swing even at low flow rates.

[0040] Furthermore, the length ratio of the transmission part 41 to the swing part 43 is 1:2 to 1:4. It can be understood that the swing part has a sufficient lever arm length to form a stable torque and achieve stable swing.

[0041] Furthermore, the inclined surface 441 of the power unit 44 is provided with an anti-stick layer. It is understood that this anti-stick layer can be a polytetrafluoroethylene coating or a ceramic anti-stick coating, preferably with a thickness of 0.1-0.5 mm. This anti-stick layer reduces material adhesion, keeping the surface of the power unit smooth at all times, improving material impact efficiency, and extending service life.

[0042] Furthermore, the rotating part 42 is rotatably connected to the fixed shaft 3 via a bearing 46. The rotation is achieved through the bearing 46, which limits the swing direction of the device and ensures the rotation sensitivity of the swinging component 4.

[0043] Furthermore, the inclined plane 441 is arranged along the rotation direction of the bearing 46, so that the impact force of the falling material is transmitted along the swing direction. It can be understood that this ensures that the impact force is always converted into an effective driving torque, thereby improving the efficiency and stability of the swing response.

[0044] In this embodiment, a reinforcing rib 442 is provided between the two inclined surfaces 441 of the power unit 44. It is understood that the reinforcing rib 442 can be integrally formed with the power unit 44, serving a supporting and deformation-resistant function. This prevents fatigue deformation of the power unit under continuous impact from 44, improving the overall structural durability.

[0045] The working principle of this utility model is as follows: The present invention provides an anti-bridging mechanism 2 at the bottom of the hopper, which uses the power generated by the impact of the falling material on the power unit 44 to make the swing member 4 swing around the fixed axis 3; the upper transmission unit 41 and the stirring unit 45 of the swing member 4 continuously disturb the bottom layer of the material, destroying the adhesion and bridging structure between the materials.

[0046] This utility model has the following beneficial effects: 1. Through the inverted V-shaped arrangement and angled design of the power unit, the impact of materials can be effectively converted into oscillating force, realizing the automatic anti-bridging function without external energy.

[0047] 2. The entire device has a compact structure, few parts, and is easy to maintain. It is especially suitable for preventing bridging in hoppers that are prone to clogging, such as those containing powder, sand, feed, and chemical granules.

[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A powder anti-bridging device, characterized in that, include: Anti-bridging mechanism (2) is installed at the bottom of the hopper body (1); The anti-bridging mechanism (2) includes: a fixed shaft (3) disposed at the discharge channel (11) of the hopper body (1), and a swing member (4) disposed along the direction of the discharge channel (11) and rotatably connected to the fixed shaft (3). The top of the swing member (4) is provided with a stirring part (45), and the bottom of the swing member (4) is provided with a power part (44), which has an inverted V-shaped structure. When the powder falls and impacts, it generates power that acts on the power unit (44). The power unit (44) drives the swinging member (4) to swing, and simultaneously drives the stirring unit (45) to stir the material at the bottom of the hopper body (1).

2. The powder anti-bridging device according to claim 1, characterized in that, The swinging component (4) further includes: a transmission part (41), a rotating part (42), and a swinging part (43); the rotating part (42) is rotatably connected between the transmission part (41) and the swinging part (43) and to the fixed shaft (3); the transmission part (41) extends upward into the hopper body (1), and the swinging part (43) extends downward into the discharge channel (11) and its end is connected to the power part (44). The two inclined surfaces (441) of the V-shape of the power unit (44) are arranged symmetrically with respect to the axis of the swing unit (43).

3. The powder anti-bridging device according to claim 1, characterized in that, One end of the fixed shaft (3) is connected to the inner wall of the discharge channel (11), and the other end extends into the discharge channel (11).

4. The powder anti-bridging device according to claim 2, characterized in that, The stirring part (45) consists of multiple outwardly extending filamentous hooks.

5. The powder anti-bridging device according to claim 4, characterized in that, At least two filamentous hooks are provided and are symmetrically arranged at the end of the transmission part (41).

6. The powder anti-bridging device according to claim 2, characterized in that, The included angle α between the swinging part (43) and the power part (44) is 150°-160°.

7. The powder anti-bridging device according to claim 2, characterized in that, The length ratio between the transmission part (41) and the swing part (43) is 1:2-1:

4.

8. The powder anti-bridging device according to claim 2, characterized in that, The surface of the power unit (44) has an anti-sticking layer.

9. The powder anti-bridging device according to claim 2, characterized in that, The rotating part (42) is rotatably connected to the fixed shaft (3) via a bearing (46); The inclined surface (441) is arranged along the rotation direction of the bearing (46).

10. The powder anti-bridging device according to claim 1, characterized in that, A reinforcing rib (442) is provided between the inclined surfaces of the power unit (44).

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