Anti-bridging straw powder storage bin

Abstract

The utility model discloses a kind of straw powder storage silos of anti-bridging, it is related to straw powder storage silo technical field, including storage silo main body, the bottom of storage silo main body is provided with discharge hopper, and the bottom of discharge hopper is fixedly installed with spiral discharge seat, the sidewall bottom array of storage silo main body is fixed with a plurality of bottom hinges, and each the bottom hinge is all pinned and rotatably installed with side edge bridge breaking plate, index rotating seat drives index turntable rotation, when index turntable intermittent rotation, side edge bridge breaking plate is broken in the rotating process to the straw powder of bridging, can effectively break in turn to the bridging straw powder of different positions in storage silo main body, ensure that the straw powder in entire storage silo main body can smoothly from discharge hopper through spiral discharge seat discharge, avoid the problem that because bridging phenomenon leads to discharge not smooth even jam, improve the use efficiency and reliability of straw powder storage silo.

Description

Technical Field

[0001] This utility model relates to the technical field of straw powder storage bins, specifically to a straw powder storage bin designed to prevent bridging. Background Technology

[0002] In fields such as biomass power generation, papermaking, and engineered wood products, the storage and transportation of straw-based materials are crucial for ensuring continuous production. However, due to its loose texture, interwoven fibers, and adhesive properties when combined with ambient humidity, straw powder is highly prone to bridging (also known as arching or bridging) in silos. This phenomenon manifests as a stable arched structure forming above the silo's discharge port, preventing the material from falling properly and severely impacting production continuity. Common anti-bridging technologies include vibration-breaking, agitation, fluid jetting, and chain-type movable-bottom silos. Vibration-breaking involves installing vibrators or pneumatic hammers on the silo walls to vibrate and break the arch. Agitation uses rotating agitator pins or impellers to force discharge. Fluid jetting uses compressed air cannons or airbags to instantly release air and loosen the material. Chain-type movable-bottom silos use moving bottom tracks to move the material as a whole.

[0003] These solutions are effective for materials like wood chips that are relatively difficult to bridge, but their effects are not ideal for straw materials such as rice straw, wheat straw, and cotton stalks that are extremely prone to bridging. Vibration methods are insufficient to break up existing tight material arches and consume a lot of energy; stirring methods are prone to fiber entanglement and require frequent maintenance; fluid jet devices are ineffective in materials with high moisture content and consume a lot of compressed air; while traditional chain-type movable-bottom silos can basically solve the bridging problem, they have drawbacks such as complex structure, poor synchronization of double-slide tracks leading to material jamming, leakage from the silo side gaps, and high failure rate of the transmission system. Therefore, we propose an anti-bridging straw powder storage silo. Utility Model Content

[0004] The purpose of this invention is to address the following issues: the vibration method has insufficient destructive force and high energy consumption in the formation of tight material arches; the stirring method is prone to fiber entanglement and requires frequent maintenance; the fluid jetting device has limited effectiveness in materials with high humidity and consumes a lot of compressed air; and while the traditional chain-type live-bottom silo can basically solve the bridging problem, it has defects such as complex structure, poor synchronization of double-track plates leading to material jamming, leakage of material in the silo side gap, and high failure rate of the transmission system. This invention provides a straw powder storage silo that prevents bridging.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A straw powder storage bin for preventing bridging includes a main body, a discharge hopper at the bottom of the main body, a spiral discharge seat fixedly installed at the bottom of the discharge hopper, multiple bottom hinge seats fixedly arranged in an array at the bottom of the side wall of the main body, and a side bridging plate rotatably installed in each bottom hinge seat with a pin. An indexing rotary seat is fixedly connected to the upper end of the main body, and the output shaft of the indexing rotary seat passes through the top of the main body and is fixedly connected to an indexing turntable. Hydraulic telescopic cylinders are symmetrically embedded on the left and right sides of the side wall of the indexing turntable. The movable inner rod of the hydraulic telescopic cylinder is fixedly connected to a docking sleeve facing outward. T-shaped docking blocks are fixedly connected to the upper inner side of each of the multiple side bridging plates. A T-shaped notch matching the T-shaped docking block is opened on the outer side of the docking sleeve.

[0006] Furthermore, a vibration motor is embedded in the center of the indexing turntable.

[0007] Furthermore, a permanent magnet adsorption block is fixedly connected to the outer side of the side bridge plate corresponding to the upper end of the inner wall of the storage silo body.

[0008] Furthermore, the side bridge plate has multiple pushing hooks evenly distributed on one side facing the center of the storage bin body.

[0009] Furthermore, the spiral discharge seat is a spiral conveying mechanism, and the spiral discharge seat is provided with a U-shaped conveying cavity and a spiral blade is rotatably installed at the center of the conveying cavity.

[0010] Furthermore, multiple rubber pads are vertically and evenly distributed in the middle of the side wall of the main body of the storage silo, corresponding to the positions of multiple side bridge plates.

[0011] The beneficial effects of this utility model are as follows: 1. When bridging occurs in the straw powder within the main body of the storage silo, this utility model activates the indexing rotary table, which drives the indexing turntable to rotate. As the indexing turntable rotates intermittently, the docking sleeve engages sequentially with the T-shaped docking blocks on the upper inner side of the side bridging plates on both sides. After docking is completed, the hydraulic telescopic cylinder is controlled, and the movable inner rod drives the side bridging plates to rotate around the bottom hinge. During rotation, the side bridging plates break up the bridging straw powder. After one bridging operation is completed, the indexing rotary table again drives the indexing... The turntable rotates at a certain angle, causing the docking sleeve to align with the T-shaped docking block on the next side bridge-breaking plate. Then, the action of the hydraulic telescopic cylinder driving the side bridge-breaking plate to rotate and break up the bridged straw powder is repeated. This cycle can effectively break up the bridged straw powder in different locations within the main body of the storage bin, ensuring that all the straw powder in the main body of the storage bin can be smoothly discharged from the discharge hopper through the spiral discharge seat. This avoids problems such as poor discharge or even blockage caused by bridging, and improves the efficiency and reliability of the straw powder storage bin.

[0012] 2. In the bridge breaking operation, when the hydraulic telescopic cylinder retracts to the end of its stroke, the vibration motor embedded in the center of the indexing turntable is activated. The high-frequency vibration generated by the vibration motor can be transmitted to the side bridge breaking plate. For some stubborn or small bridge-building parts, the vibration can further damage their structure, making the straw powder more loose and enhancing the bridge breaking effect of the side bridge breaking plate. At the same time, the vibration also helps to prevent new bridge-building phenomena from forming again during or shortly after the bridge breaking process.

[0013] 3. When the side bridge-breaking plate rotates around the bottom hinge seat to break up the straw powder on the bridge, the pushing hook teeth can push the powder at the contact position downward as the side bridge-breaking plate rotates. Repeatedly flipping the side bridge-breaking plate can hook and push the straw powder that has gathered together, enhance the destructive effect on the bridge-building part, and further improve the efficiency and effect of bridge breaking operation. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a bottom sectional view of the present invention; Figure 4 This is a partial structural diagram of the side-breaking bridge plate in this utility model.

[0015] In the diagram: 1. Main body of storage bin; 2. Discharge hopper; 3. Spiral discharge seat; 4. Bottom hinge seat; 5. Side breaking bridge plate; 6. Indexing rotary seat; 7. Indexing turntable; 8. Hydraulic telescopic cylinder; 9. Docking sleeve; 10. T-shaped docking block; 11. Permanent magnet adsorption block; 12. Vibration motor; 13. Pushing hook teeth. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0017] Please see Figure 1 - Figure 4This utility model provides a straw powder storage bin for preventing bridging, including a storage bin body 1, a discharge hopper 2 at the bottom of the storage bin body 1, and a spiral discharge seat 3 fixedly installed at the bottom of the discharge hopper 2. Multiple bottom hinge seats 4 are fixedly arranged in an array on the bottom side wall of the storage bin body 1, and a side bridge breaking plate 5 is rotatably installed in each bottom hinge seat 4. An indexing rotary seat 6 is fixedly connected to the upper end of the storage bin body 1, and an indexing turntable 7 is fixedly connected after the output shaft of the indexing rotary seat 6 passes through the top of the storage bin body 1. Hydraulic telescopic cylinders 8 are symmetrically embedded on the left and right side walls of the indexing turntable 7. The movable inner rod of the hydraulic telescopic cylinder 8 is fixedly connected to a docking sleeve 9 facing outward. T-shaped docking blocks 10 are fixedly connected to the upper inner side of the multiple side bridge breaking plates 5. A T-shaped notch matching the T-shaped docking block 10 is opened on the outer side of the docking sleeve 9.

[0018] In use, when bridging occurs in the straw powder within the main body 1 of the storage bin, the indexing rotary table 6 is activated. The indexing rotary table 6 drives the indexing turntable 7 to rotate. As the indexing turntable 7 rotates intermittently, the docking sleeve 9 engages sequentially with the T-shaped docking blocks 10 on the upper inner side of the side bridging plates 5 on both sides. After docking is completed, the hydraulic telescopic cylinder 8 is controlled to drive the side bridging plates 5 to rotate around the bottom hinge seat 4 via the movable inner rod. During the rotation, the side bridging plates 5 break up the bridging straw powder. After completing one bridging operation, the indexing rotary table 6 drives the indexing rotary table 7 again. The turntable 7 rotates at a certain angle, causing the docking sleeve 9 to dock with the T-shaped docking block 10 on the next side bridge breaking plate 5. Then, the above-mentioned action of the hydraulic telescopic cylinder 8 driving the side bridge breaking plate 5 to rotate and break the bridged straw powder is repeated. In this cycle, the bridged straw powder in different positions in the main body of the storage bin 1 can be effectively broken in turn, ensuring that the straw powder in the entire main body of the storage bin 1 can be smoothly discharged from the discharge hopper 2 through the spiral discharge seat 3, avoiding the problem of poor discharge or even blockage caused by bridging, and improving the efficiency and reliability of the straw powder storage bin.

[0019] In this embodiment, preferably, a vibration motor 12 is embedded in the center of the indexing turntable 7. During the bridge breaking operation, when the hydraulic telescopic cylinder 8 retracts to the end of its stroke, the vibration motor 12 embedded in the center of the indexing turntable 7 is activated. The high-frequency vibration generated by the vibration motor 12 can be transmitted to the side bridge breaking plate 5. For some stubborn or small bridge-building parts, the vibration can further damage their structure, making the straw powder more loose and enhancing the bridge breaking effect of the side bridge breaking plate 5. At the same time, the vibration also helps to prevent new bridge-building phenomena from forming again during or shortly after the bridge breaking process.

[0020] In this embodiment, preferably, a permanent magnet adsorption block 11 is fixedly connected to the outer side of the side bridge-breaking plate 5 at the upper end of the inner wall of the storage silo body 1. During the bridge-breaking operation of the side bridge-breaking plate 5 rotating around the bottom hinge seat 4, when the side bridge-breaking plate 5 rotates to a position close to the inner wall of the storage silo body 1, the permanent magnet adsorption block 11 will adsorb the side bridge-breaking plate 5. This adsorption effect can, on the one hand, keep the side bridge-breaking plate 5 more stably in a certain position after bridge breaking, and prevent it from shaking randomly due to its own weight or other factors, affecting subsequent bridge-breaking operations or causing collision damage to the inner wall of the storage silo body 1; on the other hand, the adsorption force of the permanent magnet adsorption block 11 can assist the side bridge-breaking plate 5 to reset to a certain extent. When a bridge-breaking operation is completed, the indexing turntable 7 drives the indexing turntable 6 to rotate and make the side bridge-breaking plate 5 leave the bridge-breaking position. The adsorption effect of the permanent magnet adsorption block 11 can help the side bridge-breaking plate 5 return to the initial position more smoothly and accurately, preparing for the next bridge-breaking operation, and improving the working stability and reliability of the entire anti-bridge-breaking device.

[0021] In this embodiment, preferably, the side bridge-breaking plate 5 has multiple pushing hooks 13 evenly distributed on one side facing the center of the storage bin body 1; when the side bridge-breaking plate 5 rotates around the bottom hinge seat 4 to break up the bridging straw powder, the pushing hooks 13 can push the powder at the contact position downward as the side bridge-breaking plate 5 reverses. Repeatedly flipping the side bridge-breaking plate 5 can hook and push the straw powder that has gathered together, enhance the destructive effect on the bridging part, and further improve the efficiency and effect of the bridge-breaking operation.

[0022] In this embodiment, preferably, the spiral discharge seat 3 is a spiral conveying mechanism, and the spiral discharge seat 3 is provided with a U-shaped conveying cavity and a spiral blade is rotatably installed at the center of the conveying cavity. When the straw powder after the bridge breaking operation falls smoothly into the discharge hopper 2, it will enter the U-shaped conveying cavity of the spiral discharge seat 3. At this time, the spiral blade starts to rotate under the drive of the drive device. The continuous rotation of the spiral blade can generate a stable pushing force, which continuously conveys the straw powder falling into the U-shaped conveying cavity along the direction of the conveying cavity, and finally discharges the straw powder from the outlet of the spiral discharge seat 3, realizing a stable and continuous discharge process of straw powder. Moreover, the spiral conveying mechanism has a relatively simple structure, stable and reliable operation, and can adapt to the conveying requirements of straw powder with different flow rates and properties, further ensuring the normal discharge function of the entire storage bin system.

[0023] In this embodiment, preferably, multiple rubber pads are vertically and evenly distributed at equal intervals in the middle of the side wall of the storage silo body 1, corresponding to the positions of multiple side breaking plates 5. When the side breaking plates 5 rotate around the bottom hinge 4 to perform breaking operations, the rubber pads can act as buffers and protect the equipment. When the side breaking plates 5 come into contact with the side wall of the storage silo body 1 during rotation, the rubber pads can absorb some of the impact force, reducing the direct collision between the side breaking plates 5 and the side wall of the storage silo body 1, thereby reducing wear and damage caused by the collision and extending the service life of the equipment. At the same time, the rubber pads can also reduce the noise generated during the breaking operation to a certain extent, creating a relatively quiet working environment for the operators.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridging resistant straw powder storage bin, characterized by: The storage silo body (1) includes a discharge hopper (2) at the bottom of the storage silo body (1), and a spiral discharge seat (3) is fixedly installed at the bottom of the discharge hopper (2). Multiple bottom hinge seats (4) are fixedly arranged on the bottom of the side wall of the storage silo body (1), and a side bridge breaking plate (5) is pin-connected and rotatably installed in each bottom hinge seat (4). An indexing rotary seat (6) is fixedly connected to the upper end of the storage silo body (1), and an indexing turntable (7) is fixedly connected after the output shaft of the indexing rotary seat (6) passes through the top of the storage silo body (1). A hydraulic telescopic cylinder (8) is symmetrically embedded on the left and right sides of the side wall of the indexing turntable (7). A docking sleeve (9) is fixedly connected to the movable inner rod of the hydraulic telescopic cylinder (8) facing outward. A T-shaped docking block (10) is fixedly connected to the upper inner side of multiple side bridge breaking plates (5). A T-shaped notch matching the T-shaped docking block (10) is opened on the outer side of the docking sleeve (9).

2. The straw powder storage bin for preventing bridging according to claim 1, characterized in that: A vibration motor (12) is embedded in the center of the indexing turntable (7).

3. The straw powder storage bin for preventing bridging according to claim 1, characterized in that: A permanent magnet adsorption block (11) is fixedly connected to the outer side of the side bridge plate (5) corresponding to the upper end of the inner wall of the storage silo body (1).

4. The straw powder storage bin for preventing bridging according to claim 1, characterized in that: The side bridge plate (5) has multiple push hooks (13) evenly distributed on one side of the center of the storage bin body (1).

5. The straw powder storage bin for preventing bridging according to claim 1, characterized in that: The spiral discharge seat (3) is a spiral conveying mechanism, and a U-shaped conveying cavity is provided inside the spiral discharge seat (3) and a spiral blade is rotatably installed in the center of the conveying cavity.

6. The straw powder storage bin for preventing bridging according to claim 1, characterized in that: Multiple rubber pads are vertically and evenly distributed in the middle of the side wall of the main body (1) of the storage silo, corresponding to the positions of multiple side bridge plates (5).

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