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

Abstract

The invention 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. While the spiral main body rotates, circumferential or swinging motion is realized through the spiral moving mechanism, 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 an activation cone or a scraper, and is suitable for powder or high-viscosity materials which are high in cohesion and easy to absorb moisture.

Description

Technical Field

[0001] The invention relates to a silo and a material pretreatment device for preventing material bridging and blocking, belonging to material stirring and conveying equipment. Background Art

[0002] Silos are widely used in industrial production as a storage tool for materials. During the discharge process, existing silos often experience problems such as high moisture, high viscosity, and uneven particle size. When the friction or cohesive forces between the material particles exceed gravity, the material forms a self-supporting arch structure (similar to a bridge) at the silo walls or cones. This creates vertical cavities (ratholes) near the silo walls, blocking material flow and preventing the material from falling, causing blockage. There are two main methods for solving bridge blockage in the existing technology: one is to install an activation cone to destroy the bridge structure through vibration / pneumatic impact to prevent blockage, but the activation cone usually relies on vibration or local movement to destroy the bridge structure, but it has the following disadvantages: (1) The range of action is mostly concentrated near the cone, and it is difficult to cover the edge or center 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 arch breaking efficiency; (3) The activation cone needs to continue high-frequency vibration to maintain the arch breaking effect, resulting in high energy consumption; (4) Its core components such as springs and flexible connections are easily damaged due to vibration fatigue, and frequent shutdowns and maintenance are required, resulting in high maintenance costs.

[0003] Another method is to install a mechanical rotating scraper to remove the attached materials on the silo wall or in the flow channel by physical scraping, thus restoring the fluidity of the materials. However, there are the following problems: (1) The mechanical scraper can only remove the accumulated materials on the surface, but cannot penetrate deep into the material to destroy the bridging structure. The residual particles after the scraper treatment may re-interlock due to friction, resulting in secondary compaction problems; (2) The scraper requires a high power drive, especially when processing high-resistance materials, which significantly increases the energy consumption and is high in energy consumption.

[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 blocking. Summary of the Invention

[0005] The present invention provides a silo and a material pretreatment device for preventing material bridging and blocking, which solve the problems of complex structure, high energy consumption and the like of existing equipment for preventing material bridging and blocking.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A silo for preventing material bridging and blocking, comprising a silo body, a plurality of spiral rotation mechanisms and a plurality of spiral movement mechanisms;

[0008] The silo body is provided with a discharge port, the spiral rotation mechanism comprises a spiral body and a rotation mechanism, one end of the spiral body is provided with a rotating joint, the rotating joint is rotatably mounted together with the silo body, the other end of the spiral body is mounted together with the rotation mechanism, and the rotation mechanism drives the spiral body to rotate;

[0009] The spiral moving mechanism drives the spiral rotating mechanism to perform circular motion or reciprocating swing motion in the silo body through the rotating joint.

[0010] Furthermore, a preferred solution of the present invention is: the rotating head 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, and the swing motor drives the swing arm to perform circular motion in the silo body.

[0011] Furthermore, a preferred solution of the present invention is: the rotating head is a universal joint, the spiral moving mechanism includes a circular 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 circular track, and the swing motor performs circular motion on the circular track, and then drives the spiral rotation mechanism to perform circular motion in the silo body through the swing arm.

[0012] Furthermore, a preferred embodiment of the present invention is as follows: there are 1-4 spiral rotation mechanisms, 1-4 spiral moving mechanisms, the rotating head is a universal joint or a flexible coupling, the spiral moving mechanism includes left and right moving rails, 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 rails, and the swing motor performs reciprocating swinging motion on the left and right moving rails, and then drives the spiral rotation mechanism to perform reciprocating swinging motion in the silo body through the swing arm.

[0013] Furthermore, a preferred solution of the present invention is that the left and right moving tracks are I-beam tracks or arc tracks.

[0014] Furthermore, a preferred solution of the present invention is that the self-rotating mechanism is a self-rotating motor, and the self-rotating motor is installed together with the spiral body;

[0015] Or the rotation mechanism is a self-rotation and revolution integrated mechanical transmission mechanism, and the self-rotation and revolution integrated transmission mechanism can drive the self-rotation of the spiral body through the swing motor, and drive the swing arm to revolve at the same time.

[0016] Furthermore, a preferred solution of the present invention is that the mechanical transmission mechanism is a bevel gear mechanism and a right-angle gearbox.

[0017] The present invention also provides a material pretreatment device: comprising the silo, material conveying mechanism and material pretreatment silo described in the present invention, the feed port of the material conveyor is connected to the discharge port of the silo, the discharge port of the material conveying mechanism is connected to the material pretreatment bin, and the material pretreatment silo is provided with a stirring mechanism.

[0018] Furthermore, a preferred solution of the present invention is that the material pretreatment device also includes an auxiliary material bin and an auxiliary material conveying mechanism, the feed port of the auxiliary material conveying mechanism is connected to the discharge port of the auxiliary material bin, and the discharge port of the auxiliary material conveying mechanism is connected to the material pretreatment bin box.

[0019] Furthermore, a preferred solution of the present invention is as follows: the material pretreatment device further comprises a material regulating mechanism, and the material regulating mechanism comprises a liquid regulating mechanism and / or a solid regulating mechanism.

[0020] Furthermore, a preferred embodiment of the present invention is that the stirring mechanism is a spiral stirring mechanism.

[0021] Beneficial effects of the present invention:

[0022] The present invention adopts a compound motion of spiral rotation and movement: while the spiral body rotates, it realizes circular or oscillating motion through the spiral movement mechanism, which can not only penetrate deep into the material for shearing and stirring, but also cover a wider range (avoiding the local dead angle problem caused by the fixed position of the activation cone or scraper). Compared with the passive arch breaking of the activation cone relying on the dead weight or vibration of the material, the rotation and displacement of the spiral mechanism actively cuts the cohesive force between the materials, which is particularly suitable for powders with high cohesion and hygroscopicity or high viscosity materials.

[0023] The contact between the spiral blades of the present invention and the material is rolling friction, which has less sliding friction than the mechanical scraper, reduces energy consumption and extends the life of the equipment; compared with the spiral mechanism, it does not require high-frequency vibration and can achieve arch breaking through low-speed rotation, reducing energy consumption and noise pollution.

[0024] Through the synergistic effect of spiral rotation and movement, the present invention achieves a balance between arch-breaking efficiency, material adaptability and equipment life. It is particularly suitable for processing highly viscous and easily compacted industrial materials. Compared with activated cones and mechanical scrapers, its dynamic motion mode and low-wear design are more in line with the cost reduction and efficiency improvement needs of continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 Schematic diagram of the three-dimensional structure of Example 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the planar structure of Example 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the main structure of Example 2 of the present invention;

[0029] Figure 4 Schematic diagram of the top view of the structure of embodiment 2 of the present invention;

[0030] Figure 5 This is a schematic diagram of the main structure of Example 3 of the present invention;

[0031] Figure 6 Schematic diagram of the top view of the structure of embodiment 3 of the present invention;

[0032] Figure 7 This is a schematic diagram of the main structure of Example 4 of the present invention;

[0033] Figure 8 Schematic diagram of the top view of the structure of embodiment 4 of the present invention;

[0034] Figure 9 This is a schematic diagram of the planar structure of Example 5 of the present invention;

[0035] Figure 10 This is a schematic diagram of the planar structure of Example 6 of the present invention;

[0036] In the figure, 1 is the discharge port, 2 is the spiral body, 3 is the swing arm, 4 is the fixed frame, 5 is the swing motor, 6 is the silo body, 7 is the rotation motor, 8 is the universal joint, 9 is the bearing, 10 is the circular track, 11 is the arc track, 12 is the connecting rod, 13 is the bevel gear mechanism, 14 is the silo, 15 is the material conveying mechanism, 16 is the material pretreatment silo, 17 is the spiral stirring 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 silo. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are excluded.

[0038] Example 1

[0039] like Figure 1 and 2 As shown, a silo for preventing material bridging and blocking includes a silo body 6, a plurality of spiral rotation mechanisms and a plurality of spiral movement mechanisms;

[0040] The function of the silo body 6 is to store materials and facilitate discharge. Generally, a conical structure with a larger top and a smaller bottom is selected, such as a square cone, a circular cone, etc. This embodiment adopts a square cone.

[0041] The silo body 6 is provided with a discharge port 1, which is generally provided at the lower portion of the silo body 6 for discharging. According to the discharge requirements, the discharge port 1 can be provided at different positions on the silo body 6. In this embodiment, the discharge port 1 is provided at the lower portion of one side of the silo body 6.

[0042] The spiral rotation mechanism is mainly capable of realizing a self-rotating spiral structure, generally including a spiral body 2 and a rotation mechanism. A rotating joint is provided at one end of the spiral body 2, and the rotating joint is rotatably installed together with the silo. The other end of the spiral body 2 is installed together with the rotation mechanism, and the rotation mechanism drives the spiral body 2 to rotate.

[0043] The spiral body 2 generally adopts a spiral structure made of steel plates. The spiral mechanism has low resistance and low energy consumption during movement.

[0044] The function of the rotary joint is to realize the rotation of the spiral body 2. According to the size of the compensation angle, a suitable mechanism can be selected. If the angle is large, a universal joint 8 is used, and if the angle is small, a coupling is used. In this embodiment, circular motion is to be realized, so the universal joint 8 is selected.

[0045] One end of the rotating head is mounted on the bottom of the material layer through a bearing 9 , and the other end of the rotating head is mounted on the spiral body 2 .

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

[0047] The function of the spiral moving mechanism is to drive the spiral rotation mechanism to perform circular motion or reciprocating swing motion in the silo body 6 through the rotating 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 perform circular motion in the silo body 6.

[0049] The operation process of this embodiment:

[0050] The self-rotating motor 7 drives the spiral body 2 to rotate, and the moving drive drives the swing arm 3 to make a circular motion in the silo body 6. While the spiral body 2 rotates, it realizes a circular motion through the spiral moving mechanism, which can not only penetrate deep into the material for shearing and stirring, but also cover a larger range, avoiding the local dead angle problem caused by the fixed position of the activation cone or scraper, with 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 circular track 10, a swing motor 5, and a swing arm 3. The circular track 10 is fixed to the upper portion of the silo body 6. A dedicated fixed frame 4 can also be provided. In this embodiment, it is fixed to the upper portion of the silo body 6. The circular track 10 can be a single unitary structure, or it can be composed of several separate curved tracks 11. One end of the swing arm 3 is mounted to the spiral rotation mechanism, and the other end of the swing arm 3 is mounted to the swing motor 5. The swing motor 5 is fixed to the circular track 10. The swing motor 5 performs circular motion on the circular track 10, thereby driving the spiral rotation mechanism to perform circular motion within the silo body 6 through the swing arm 3.

[0054] This embodiment uses a circular track 10 as the motion carrier of the spiral motion mechanism. The swing arm 3 drives the spiral rotation mechanism to perform circular motion within the silo body 6. This structure ensures that the spiral rotation mechanism's circular motion trajectory within the silo is strictly controllable, avoiding arch-breaking blind spots caused by positioning deviations. Circular track 10 is made of hardened steel, providing high strength to withstand the impact loads of the spiral mechanism during operation and maintain motion stability. Circular track 10 supports high-speed motion, and the smooth drive system design reduces vibration, making it suitable for continuous operation.

[0055] Example 3

[0056] like Figure 5 and 6As shown, it is basically the same as Example 1, except that: the number of the spiral rotation mechanism is 1-4, and there are two in this embodiment; the number of the spiral movement mechanism is 1-4, and there are two in this embodiment. This embodiment is suitable for materials with less severe blockage. By setting an anti-blocking mechanism at a part of the position in the silo, it plays a role in preventing bridging blockage.

[0057] In this embodiment, the swing amplitude of the spiral self-rotating mechanism is not large, and the rotating head can use a flexible coupling. A flexible coupling is a mechanical component 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 embodiment, a universal joint 8 is used.

[0058] The spiral moving mechanism includes left and right moving rails, 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 rails. The swing motor 5 performs reciprocating swinging motion on the left and right moving rails, and then drives the spiral rotation mechanism to perform reciprocating swinging motion in the silo body 6 through the swing arm 3.

[0059] The left and right moving track is an I-steel track or an arc track 11. In the present embodiment, the arc track 11 is adopted. The arc track 11 can be set horizontally or vertically. In the present embodiment, the vertical setting is adopted.

[0060] The structure of this embodiment is suitable for materials with less severe bridging blockage, has a simple structure and low energy consumption.

[0061] Example 4

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

[0063] The integrated rotation and revolution transmission mechanism is a conventional structure, and can be implemented using, for example, a bevel gear mechanism 13 and a right-angle gearbox. The solution adopted in this embodiment comprises bevel gear mechanisms 13 disposed at both ends of the swing arm 3. The output end of the swing motor 5 is connected to the bevel gear mechanism 13 via a connecting rod 12, and one end of the spiral body 2 is connected to 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 material bin 14, a material conveying mechanism 15 and a material pretreatment bin 16. The material layer adopts the structure of embodiment 1 and will not be described in detail.

[0067] The feed port of the material conveyor is connected to the discharge port 1 of the silo 14, the discharge port 1 of the material conveying mechanism 15 is connected to the material pre-treatment bin 16, and the material pre-treatment bin 16 is provided with a stirring mechanism.

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

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

[0070] This embodiment adopts the above structure, which can quickly and easily collect, transport and mix materials, has a simple structure and is easy to operate.

[0071] Example 6

[0072] like Figure 10 As shown, it is basically the same as Example 5, except that: the material pretreatment device also includes an auxiliary material bin 21 and an auxiliary material conveying mechanism 20, the feed port of the auxiliary material conveying mechanism 20 is connected to the discharge port 1 of the auxiliary material bin 21, and the discharge port 1 of the auxiliary material conveying mechanism 20 is connected to the material pretreatment bin 16 box.

[0073] The auxiliary material bin 21 can be provided to realize the conveying and mixing of multiple materials, which helps to realize diversified operations and improve the versatility of the setting.

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

[0075] Setting up a 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, generally including a liquid tank, a stirring mechanism, a liquid inlet and a liquid outlet, etc., which can realize the stirring of the liquid in and out, etc., and can select suitable existing equipment according to actual needs, and the structure will not be described in detail.

[0076] The solid adjustment mechanism 18 can effectively adjust the amount of trace additives, realize the diversified adjustment and change of materials, and provide the versatility of the setting. The solid adjustment mechanism 18 is a conventional device, generally including a silo, a stirring mechanism, a feed port and a discharge port 1, etc., which can realize the feeding, discharging and stirring of solids. It can be selected from the existing equipment as needed, and the structure is not described in detail.

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

Claims

1. A silo that prevents material bridging and blocking, characterized by: It includes a silo main body, several spiral rotation mechanisms and several spiral movement mechanisms; The silo body is provided with a discharge port, the spiral rotation mechanism comprises a spiral body and a rotation mechanism, one end of the spiral body is provided with a rotating joint, the rotating joint is rotatably mounted together with the silo body, the other end of the spiral body is mounted together with the rotation mechanism, and the rotation mechanism drives the spiral body to rotate; The spiral moving mechanism drives the spiral rotating mechanism to perform circular motion or reciprocating swing motion in the silo body through the rotating joint.

2. The silo according to claim 1, characterized in that: The rotating head is a universal joint, and 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, and the swing motor drives the swing arm to perform circular motion in the silo body.

3. The silo according to claim 1, characterized in that: The rotating head is a universal joint, and the spiral moving mechanism includes a circular 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 circular track, and the swing motor performs circular motion on the circular track, and then drives the spiral rotation mechanism to perform circular motion in the silo body through the swing arm.

4. The silo according to claim 1, characterized in that: There are 1-4 spiral rotation mechanisms, 1-4 spiral moving mechanisms, and the rotating head is a universal joint or a flexible coupling. The spiral moving mechanism includes left and right moving rails, 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 rails. The swing motor performs reciprocating swinging motion on the left and right moving rails, and then drives the spiral rotation mechanism to perform reciprocating swinging motion in the silo body through the swing arm.

5. The silo according to claim 4, characterized in that: The left and right moving tracks are I-beam tracks or curved tracks.

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

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

8. A material pretreatment device, characterized in that: It comprises the silo, material conveying mechanism and material pretreatment silo as described in any one of claims 1-7, the feed port of the material conveyor is connected with the discharge port of the silo, the discharge port of the material conveying mechanism is connected with the material pretreatment bin, 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 bin and an auxiliary material conveying mechanism, the feed port of the auxiliary material conveying mechanism is connected to the discharge port of the auxiliary material bin, and the discharge port of the auxiliary material conveying mechanism is connected to the material pretreatment bin box.

10. The material pretreatment device according to claim 8, characterized in that: The material pretreatment device further comprises a material regulating mechanism, and the material regulating mechanism comprises a liquid regulating mechanism and / or a solid regulating mechanism.

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

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