Stock bin capable of preventing bridging blockage of materials and material pretreatment device thereof

Abstract

The utility model relates to a stock bin capable of preventing bridging and blocking of materials. The stock bin comprises a stock bin body, a plurality of spiral autorotation mechanisms and a plurality of spiral moving mechanisms. The stock bin main body is provided with a discharge port, the spiral autorotation mechanism comprises a spiral main body and an autorotation mechanism, one end of the spiral main body is provided with a rotating joint, the other end of the spiral main body and the autorotation mechanism are installed together, and the autorotation mechanism drives the spiral main body to do autorotation motion; and the spiral moving mechanism drives the spiral autorotation mechanism to do circular motion or reciprocating swing motion in the stock bin through the rotating joint. According to the utility model, the spiral main body realizes circumferential or swinging movement through the spiral moving mechanism while rotating, so that the spiral stirring device can penetrate into materials for shearing and stirring, can cover a larger range, avoids the problem of local dead angles caused by the fixed position of the activation cone or the scraper, and is suitable for powder or high-viscosity materials which are high in cohesion and easy to absorb moisture.

Description

Technical Field

[0001] This utility model relates to a silo and its material pretreatment device for preventing material bridging and blockage, belonging to the category of material mixing and conveying equipment. Background Technology

[0002] Silos are widely used in industrial production as tools for storing materials. During the discharge process, existing silos often encounter problems such as high material moisture content, high viscosity, and uneven particle size. When the friction or cohesive force between material particles exceeds the effect of gravity, the material forms a self-supporting arched structure (similar to a bridge) at the silo wall or cone. Vertical cavities (like rat holes) are also formed near the silo wall, blocking the flow of material and preventing the upper material from falling, thus causing blockage. There are two main methods for solving bridging blockage in the existing technology: one is to install an activation cone, which destroys the bridging structure through vibration / pneumatic impact, thereby preventing blockage. However, the activation cone usually relies on vibration or local movement to destroy the bridging structure, but it has the following disadvantages: (1) The effective range is mostly concentrated near the cone, and it is difficult to cover the edge or central area of ​​the silo; (2) When the material viscosity is high or the humidity is high, the vibration effect of the activation cone is significantly reduced, and the material is easy to adhere to the surface of the activation cone, resulting in a decrease in the arch breaking efficiency; (3) The activation cone needs to continuously vibrate at high frequency to maintain the arch breaking effect, resulting in high energy consumption; (4) Its core components, such as springs and flexible connections, are easily damaged by vibration fatigue, requiring frequent shutdowns for maintenance, resulting in high maintenance costs.

[0003] Another method involves installing a mechanical rotating scraper to physically scrape away the material adhering to the bin walls or flow channels, restoring the material's flowability. However, this method has the following problems: (1) The mechanical scraper can only remove the surface-accumulated material, but it cannot penetrate deep into the material to break the bridging structure. After the scraper is used, the residual particles may re-interlock due to friction, leading to secondary caking. (2) The scraper requires high power to drive, and energy consumption increases significantly, especially when processing high-resistance materials.

[0004] Therefore, it is of great significance to develop a mechanism that has a simple structure and low energy consumption to prevent material bridging and blockage. Utility Model Content

[0005] This invention provides a silo and its material pretreatment device for preventing material bridging and blockage, solving the problems of complex structure and high energy consumption of existing equipment for preventing material bridging and blockage.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A silo designed to prevent material bridging and blockage includes a silo body, several spiral rotation mechanisms, and several spiral movement mechanisms.

[0008] The silo body is provided with a discharge port. The spiral rotation mechanism includes a spiral body and a rotation mechanism. One end of the spiral body is provided with a rotating joint. The rotating joint is rotatably installed together with the silo body. The other end of the spiral body is installed together with the rotation mechanism. The rotation mechanism drives the spiral body to rotate.

[0009] The spiral moving mechanism drives the spiral self-rotating mechanism to perform circular motion or reciprocating oscillation motion within the silo body via a rotary joint.

[0010] Furthermore, in a preferred embodiment of this utility model: the rotary joint is a universal joint, the spiral moving mechanism includes a fixed frame, a swing motor and a swing arm, one end of the swing arm is installed together with the spiral rotation mechanism, the other end of the swing arm is installed together with the swing motor, the swing motor is fixed on the fixed frame, and the swing motor drives the swing arm to perform circular motion within the hopper body.

[0011] Furthermore, in a preferred embodiment of this utility model: the rotary joint is a universal joint, the spiral moving mechanism includes a ring track, a swing motor and a swing arm, one end of the swing arm is installed together with the spiral rotation mechanism, the other end of the swing arm is installed together with the swing motor, the swing motor is fixed on the ring track, the swing motor makes circular motion on the ring track, and then drives the spiral rotation mechanism to make circular motion within the hopper body through the swing arm.

[0012] Furthermore, in a preferred embodiment of this utility model: the spiral rotation mechanism comprises 1-4 units, the spiral moving mechanism comprises 1-4 units, the rotating joint is a universal joint or a flexible coupling, the spiral moving mechanism includes left and right moving tracks, a swing motor and a swing arm, one end of the swing arm is mounted together with the spiral rotation mechanism, the other end of the swing arm is mounted together with the swing motor, the swing motor is fixed on the left and right moving tracks, the swing motor performs reciprocating swing motion on the left and right moving tracks, and thus drives the spiral rotation mechanism to perform reciprocating swing motion within the silo body through the swing arm.

[0013] Furthermore, in a preferred embodiment of this utility model, the left and right moving track is an I-beam track or an arc-shaped track.

[0014] Furthermore, in a preferred embodiment of this utility model: the rotation mechanism is a self-rotating motor, and the self-rotating motor is installed together with the spiral body;

[0015] Alternatively, the rotation mechanism may be an integrated rotation and revolution mechanical transmission mechanism, which can drive the rotation of the spiral body through the swing motor, and at the same time drive the swing arm to revolve.

[0016] Furthermore, in a preferred embodiment of this utility model, the mechanical transmission mechanism is a bevel gear mechanism and a right-angle gearbox.

[0017] This utility model also provides a material pretreatment device, which includes the silo, material conveying mechanism and material pretreatment bin described in this utility model. The inlet of the material conveyor is connected to the outlet of the silo, the outlet of the material conveying mechanism is connected to the material pretreatment bin, and the material pretreatment bin is equipped with a stirring mechanism.

[0018] Furthermore, in a preferred embodiment of this utility model: the material pretreatment device further includes an auxiliary material silo and an auxiliary material conveying mechanism, wherein the inlet of the auxiliary material conveying mechanism is connected to the outlet of the auxiliary material silo, and the outlet of the auxiliary material conveying mechanism is connected to the material pretreatment silo.

[0019] Furthermore, in a preferred embodiment of the present invention, the material pretreatment device further includes a material adjustment mechanism, which includes a liquid adjustment mechanism and / or a solid adjustment mechanism.

[0020] Furthermore, in a preferred embodiment of this utility model, the stirring mechanism is a spiral stirring mechanism.

[0021] The beneficial effects of this utility model are:

[0022] This invention employs a composite motion of spiral rotation and movement: while the spiral body rotates, it achieves circular or oscillating motion through a spiral movement mechanism. This allows for both deep shearing and mixing of the material and coverage of a wider area, avoiding the local dead zones caused by the fixed position of the activation cone or scraper. Compared to the passive arch-breaking mechanism of the activation cone, which relies on the material's own weight or vibration, the rotation and displacement of the spiral mechanism actively cuts the adhesive forces between materials, making it particularly suitable for powders or highly viscous materials with high cohesion and easy moisture absorption.

[0023] The contact between the spiral blades and the material in this invention is rolling friction, which is less than the sliding friction of mechanical scrapers, thus reducing energy consumption and extending equipment life. Compared with spiral mechanisms, it does not require high-frequency vibration and can break arches through low-speed rotation, reducing energy consumption and noise pollution.

[0024] This invention achieves a balance between arch-breaking efficiency, material adaptability, and equipment lifespan through the synergistic effect of spiral rotation and movement. It is especially suitable for processing highly viscous and easily caking industrial materials. Compared with activation cones and mechanical scrapers, its dynamic motion mode and low-wear design better meet the cost reduction and efficiency improvement requirements of continuous production. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0027] Figure 2 This is a schematic diagram of the planar structure of Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the main structure of Embodiment 2 of this utility model;

[0029] Figure 4 This is a top view of Embodiment 2 of the present invention.

[0030] Figure 5 This is a schematic diagram of the main structure of Embodiment 3 of this utility model;

[0031] Figure 6 This is a top view of Embodiment 3 of the present invention.

[0032] Figure 7 This is a schematic diagram of the main structure of Embodiment 4 of this utility model;

[0033] Figure 8 This is a top view of Embodiment 4 of the present invention.

[0034] Figure 9 This is a schematic diagram of the planar structure of Embodiment 5 of this utility model;

[0035] Figure 10 This is a schematic diagram of the planar structure of Embodiment 6 of this utility model;

[0036] In the diagram, 1 is the discharge port, 2 is the screw body, 3 is the swing arm, 4 is the fixed frame, 5 is the swing motor, 6 is the hopper body, 7 is the self-rotating motor, 8 is the universal joint, 9 is the bearing, 10 is the ring track, 11 is the arc track, 12 is the connecting rod, 13 is the bevel gear mechanism, 14 is the hopper, 15 is the material conveying mechanism, 16 is the material pretreatment hopper, 17 is the screw mixing mechanism, 18 is the solid adjustment mechanism, 19 is the liquid adjustment mechanism, 20 is the auxiliary material conveying mechanism, and 21 is the auxiliary material hopper. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are also described.

[0038] Example 1

[0039] like Figure 1 and 2 As shown, a hopper for preventing material bridging and blockage includes a hopper body 6, several spiral rotation mechanisms, and several spiral movement mechanisms.

[0040] The main body 6 of the silo is used to store materials and facilitate material discharge. It is generally selected with a conical structure that is larger at the top and smaller at the bottom, such as a square cone or a cone. In this embodiment, a square cone is used.

[0041] The silo body 6 is provided with a discharge port 1, which is generally located at the lower part of the silo body 6 and can be used to discharge materials. Depending on the material discharge requirements, the discharge port 1 can be set at different positions on the silo body 6. In this embodiment, the discharge port 1 is set at the lower part of one side of the silo body 6.

[0042] The aforementioned spiral rotation mechanism is mainly a spiral structure capable of rotation, generally including a spiral body 2 and a rotation mechanism. One end of the spiral body 2 is provided with a rotating joint, which is rotatably installed together with the hopper. The other end of the spiral body 2 is installed together with the rotation mechanism, which drives the spiral body 2 to rotate.

[0043] The spiral body 2 is generally made of steel plate and has a spiral structure. It adopts a spiral mechanism, which has low resistance and low energy consumption during the movement.

[0044] The function of the rotary joint is to enable the rotation of the screw body 2. A suitable mechanism can be selected based on the size of the compensation angle; a universal joint 8 is used for larger angles, and a coupling is used for smaller angles. In this embodiment, circular motion is required, therefore a universal joint 8 is selected.

[0045] One end of the rotary joint is installed with the bottom of the material layer via bearing 9, and the other end of the rotary joint is installed with the screw body 2.

[0046] The function of the self-rotation mechanism is to provide power for the rotation of the spiral body 2. In this embodiment, a self-rotation motor 7 is used.

[0047] The function of the spiral moving mechanism is to drive the spiral self-rotating mechanism to make circular motion or reciprocating swing motion within the hopper body 6 by rotating the joint.

[0048] The structure adopted in this embodiment is as follows: the spiral moving mechanism includes a fixed frame 4, a swing motor 5 and a swing arm 3. One end of the swing arm 3 is installed together with the spiral rotation mechanism, and the other end of the swing arm 3 is installed together with the swing motor 5. The swing motor 5 is fixed on the fixed frame 4, and the swing motor 5 drives the swing arm 3 to make circular motion within the hopper body 6.

[0049] The operation process of this embodiment:

[0050] The self-rotating motor 7 drives the spiral body 2 to rotate, and the movement drives the swing arm 3 to make circular motion within the hopper body 6. While rotating, the spiral body 2 also achieves circular motion through the spiral movement mechanism, which can not only penetrate deep into the material for shearing and mixing, but also cover a larger area, avoiding the local dead corner problem caused by the fixed position of the activation cone or scraper. It has low energy consumption and can effectively improve the effect of preventing material blockage.

[0051] Example 2

[0052] like Figure 3 and 4 As shown, it is basically the same as Example 1, except that:

[0053] The spiral movement mechanism includes a ring track 10, a swing motor 5, and a swing arm 3. The ring track 10 is fixed to the upper part of the hopper body 6, or a dedicated fixing frame 4 can be used; in this embodiment, it is fixed to the upper part of the hopper body 6. The ring track 10 can be a single integral structure or composed of several separate arc-shaped tracks 11. One end of the swing arm 3 is mounted to the spiral rotation mechanism, and the other end is mounted to the swing motor 5. The swing motor 5 is fixed to the ring track 10 and performs circular motion on the ring track 10, thereby driving the spiral rotation mechanism to perform circular motion within the hopper body 6 via the swing arm 3.

[0054] In this embodiment, a circular track 10 is used as the motion carrier for the helical movement mechanism. The helical self-rotating mechanism is driven by the swing arm 3 to perform circular motion within the hopper body 6. This structure ensures that the circular motion trajectory of the helical self-rotating mechanism within the hopper is strictly controllable, avoiding dead angles caused by positioning deviations. The circular track 10 is made of hardened steel, which has high strength and can withstand the impact loads during the operation of the helical mechanism, maintaining motion stability. The circular track 10 supports high-speed motion, and the drive system is smoothly designed to reduce vibration, making it suitable for continuous operation.

[0055] Example 3

[0056] like Figure 5 and 6 As shown, it is basically the same as Embodiment 1, except that: the spiral rotation mechanism is 1-4 units, and there are two units in this embodiment; the spiral movement mechanism is 1-4 units, and there are two units in this embodiment. This embodiment is suitable for materials with mild blockage. By setting an anti-blockage mechanism in a part of the hopper, it can prevent bridging blockage.

[0057] In this example, the oscillation amplitude of the helical rotation mechanism is small. The rotary joint can be a flexible coupling. A flexible coupling is a mechanical part used to connect two shafts (driving shaft and driven shaft) in different mechanisms so that they rotate together to transmit torque. It is a common structure and will not be described in detail. In this implementation, a universal joint 8 is used.

[0058] The spiral moving mechanism includes a left and right moving track, a swing motor 5, and a swing arm 3. One end of the swing arm 3 is installed together with the spiral rotation mechanism, and the other end of the swing arm 3 is installed together with the swing motor 5. The swing motor 5 is fixed on the left and right moving track and performs reciprocating swing motion on the left and right moving track, thereby driving the spiral rotation mechanism to perform reciprocating swing motion within the hopper body 6 through the swing arm 3.

[0059] The left and right moving track is an I-beam track or an arc-shaped track 11. In this embodiment, an arc-shaped track 11 is used. The arc-shaped track 11 can be set horizontally or vertically. In this embodiment, it is set vertically.

[0060] The structure of this embodiment is suitable for materials with minimal bridging and blockage, and it is simple in structure and has low energy consumption.

[0061] Example 4

[0062] like Figure 7 and 8 As shown, it is basically the same as in Embodiment 1, except that the rotation mechanism is an integrated rotation and revolution transmission mechanism. The integrated rotation and revolution transmission mechanism can drive the spiral body 2 to rotate through the swing motor 5, and at the same time drive the swing arm 3 to revolve.

[0063] The self-rotation and revolution integrated transmission mechanism is a conventional structure; for example, bevel gear mechanism 13 and right-angle gearbox can both achieve the above functions. The solution adopted in this embodiment is as follows: it includes bevel gear mechanism 13 set at both ends of the swing arm 3; the output end of the swing motor 5 is installed together with the bevel gear mechanism 13 through the connecting rod 12; and one end of the spiral body 2 is installed together with the bevel gear mechanism 13.

[0064] The above solution can reduce the number of motors and lower energy consumption.

[0065] Example 5

[0066] like Figure 9 As shown, a material pretreatment device includes a silo 14, a material conveying mechanism 15, and a material pretreatment bin 16. The material layer adopts the structure of Embodiment 1, which will not be described in detail.

[0067] The feed inlet of the material conveyor is connected to the discharge outlet 1 of the silo 14, and the discharge outlet 1 of the material conveying mechanism 15 is connected to the material pretreatment bin 16. The material pretreatment bin 16 is equipped with a stirring mechanism.

[0068] The material conveying mechanism 15 can be selected according to the actual material conditions. In this embodiment, the silo is underground and the material pretreatment silo 16 is on the ground. The two are far apart, so two screw conveyors are used. Of course, one screw conveyor with a long conveying distance can also be selected.

[0069] The stirring mechanism can be selected according to the state of the material. In this embodiment, a spiral stirring mechanism 17 is used.

[0070] This embodiment uses the above-described structure, which can conveniently and quickly realize the collection, transportation and mixing of materials. The structure is simple and easy to operate.

[0071] Example 6

[0072] like Figure 10 As shown, it is basically the same as Embodiment 5, except that: the material pretreatment device further includes an auxiliary material bin 21 and an auxiliary material conveying mechanism 20. The inlet of the auxiliary material conveying mechanism 20 is connected to the outlet 1 of the auxiliary material bin 21, and the outlet 1 of the auxiliary material conveying mechanism 20 is connected to the material pretreatment bin 16.

[0073] Setting up auxiliary material bin 21 can realize the conveying and mixing of various materials, which helps to realize diversified operations and improve the versatility of the setup.

[0074] The material pretreatment device also includes a material conditioning mechanism, which includes a liquid conditioning mechanism 19 and / or a solid conditioning mechanism 18.

[0075] The liquid regulating mechanism 19 can effectively regulate the humidity of the material and can also add liquid raw materials. The liquid regulating mechanism 19 is a conventional device, which generally includes a liquid tank, a stirring mechanism, a liquid inlet and a liquid outlet, etc. It can realize the inflow, outflow and stirring of liquid. The appropriate existing equipment can be selected according to actual needs. The structure will not be described in detail.

[0076] The solid adjustment mechanism 18 can effectively adjust the amount of additives, enabling diversified adjustments and changes in materials and providing versatility. The solid adjustment mechanism 18 is a conventional device, generally including a hopper, a stirring mechanism, a feed inlet, and a discharge outlet 1, etc., capable of handling the feeding, discharging, and stirring of solids. Appropriate existing equipment can be selected as needed; the structure will not be described in detail.

[0077] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A silo for preventing material bridging and blockage, characterized in that: It includes the main body of the silo, several spiral rotation mechanisms, and several spiral movement mechanisms; The silo body is provided with a discharge port. The spiral rotation mechanism includes a spiral body and a rotation mechanism. One end of the spiral body is provided with a rotating joint. The rotating joint is rotatably installed together with the silo body. The other end of the spiral body is installed together with the rotation mechanism. The rotation mechanism drives the spiral body to rotate. The spiral moving mechanism drives the spiral self-rotating mechanism to perform circular motion or reciprocating oscillation motion within the silo body via a rotary joint.

2. The silo according to claim 1, characterized in that: The rotary joint is a universal joint. The spiral moving mechanism includes a fixed frame, a swing motor and a swing arm. One end of the swing arm is installed together with the spiral rotation mechanism, and the other end of the swing arm is installed together with the swing motor. The swing motor is fixed on the fixed frame. The swing motor drives the swing arm to make circular motion within the hopper body.

3. The silo according to claim 1, characterized in that: The rotary joint is a universal joint, and the spiral moving mechanism includes a ring track, a swing motor and a swing arm. One end of the swing arm is installed together with the spiral rotation mechanism, and the other end of the swing arm is installed together with the swing motor. The swing motor is fixed on the ring track and makes circular motion on the ring track, thereby driving the spiral rotation mechanism to make circular motion within the silo body through the swing arm.

4. The silo according to claim 1, characterized in that: The spiral rotation mechanism comprises 1-4 units, the spiral moving mechanism comprises 1-4 units, the rotating joint is a universal joint or a flexible coupling, and the spiral moving mechanism includes a left and right moving track, a swing motor and a swing arm. One end of the swing arm is installed together with the spiral rotation mechanism, and the other end of the swing arm is installed together with the swing motor. The swing motor is fixed on the left and right moving track and performs reciprocating swing motion on the left and right moving track, thereby driving the spiral rotation mechanism to perform reciprocating swing motion within the hopper body through the swing arm.

5. The silo according to claim 4, characterized in that: The left and right moving track is an I-beam track or an arc-shaped track.

6. The silo according to any one of claims 1-5, characterized in that: The rotation mechanism is a self-rotating motor, which is installed together with the spiral body. Alternatively, the rotation mechanism may be an integrated rotation and revolution mechanical transmission mechanism, which can drive the rotation of the spiral body through the swing motor, and at the same time drive the swing arm to revolve.

7. The silo according to claim 6, characterized in that: The aforementioned self-rotation and revolution integrated mechanical transmission mechanism is a bevel gear mechanism or a right-angle gearbox.

8. A material pretreatment device, characterized in that: The material includes the silo, material conveying mechanism, and material pretreatment silo as described in any one of claims 1-7, wherein the inlet of the material conveyor is connected to the outlet of the silo, the outlet of the material conveying mechanism is connected to the material pretreatment silo, and the material pretreatment silo is provided with a stirring mechanism.

9. A material pretreatment device according to claim 8, characterized in that: The material pretreatment device further includes an auxiliary material silo and an auxiliary material conveying mechanism. The inlet of the auxiliary material conveying mechanism is connected to the outlet of the auxiliary material silo, and the outlet of the auxiliary material conveying mechanism is connected to the material pretreatment silo.

10. A material pretreatment device according to claim 8, characterized in that: The material pretreatment device further includes a material conditioning mechanism, which includes a liquid conditioning mechanism and / or a solid conditioning mechanism.

11. A material pretreatment apparatus according to any one of claims 8-10, characterized in that: The stirring mechanism is a spiral stirring mechanism.

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