A multi-directional cleaning device for a silo

Abstract

The utility model relates to the technical field of stock bin cleaning, in particular to a multi-directional cleaning device for a stock bin, comprising: a cleaning block arranged on the material receiving surface of the stock bin, a high-pressure gas pipeline connected to the cleaning block, and a gas outlet arranged on the side of the cleaning block to spray the high-pressure gas to clean the material receiving surface, The utility model has the beneficial effect that the cleaning block is directly arranged on the material receiving surface of the stock bin, and the high-pressure gas is sprayed through the gas outlet on the side, thus achieving active cleaning of the adhered material on the material receiving surface. Compared with the traditional manual cleaning or vibrator cleaning method, the utility model uses high-pressure gas as the power source and can effectively peel off the adhered layer formed on the material receiving surface through air flow disturbance, while inhibiting the initial adhesion of new material. This structure design avoids the problems of low efficiency, high risk of manual cleaning and poor cleaning effect of the vibrator on viscous materials.

Description

Technical Field

[0001] This utility model relates to the field of silo cleaning technology, specifically to a multi-directional cleaning device for silos. Background Technology

[0002] In industrial production, silos are crucial storage and transfer equipment, widely used in many industries such as mining, metallurgy, chemicals, building materials, food, and power. Their core function is to receive, temporarily store, and smoothly discharge bulk materials, ensuring the continuity and stability of the production process.

[0003] One of the core components of a silo is its receiving surface. This surface directly bears the impact and load of the material during feeding. However, this critical area has long been a pain point in silo operation. Many bulk materials (such as wet, sticky ores, coal powder, clay, cement, and grain) are prone to adhesion, accumulation, and caking when they fall and impact the receiving surface under gravity. This is mainly due to the physical properties of the material (such as high moisture content, high viscosity, and fine particle size) and the adhesion and consolidation forces between the material and the silo wall material.

[0004] If the initial adhesion is not removed in time, it will gradually form a hardened layer under the continuous impact and compaction of subsequent materials, causing the effective flow cross-sectional area of ​​the silo to continuously decrease. This will not only significantly reduce the effective capacity of the silo, but also severely disrupt the material flow pattern, ultimately leading to material discharge blockage. Blockage problems will force the production line to stop, requiring a large amount of manpower for frequent and dangerous manual cleaning of the silo, which not only greatly reduces production efficiency and increases maintenance costs, but also brings serious safety hazards.

[0005] Currently, traditional solutions to the problem of material adhesion and clogging on the receiving surface of silos mainly include:

[0006] Manual cleaning: inefficient, dangerous and cannot be done continuously.

[0007] Vibrators: Effective for some materials, but may exacerbate material compaction. They are not effective for sticky materials, and the vibration and noise are not friendly to equipment and the environment.

[0008] Improving the material of the receiving surface: such as adding stainless steel plates, high molecular weight polyethylene lining plates or nanotechnology anti-stick coatings, can reduce adhesion to a certain extent, but cannot completely eliminate it, and is powerless against already hardened materials.

[0009] Therefore, a multi-directional cleaning device for silos is needed to overcome the above problems. Utility Model Content

[0010] The purpose of this application is to provide a multi-directional cleaning device for silos, which has the technical effect of automatically cleaning the receiving surface by using high-pressure gas to assist the cleaning block, and effectively preventing material blockage.

[0011] This application provides a multi-directional cleaning device for silos, with the following technical solution: a cleaning block is placed on the material receiving surface of the silo, and high-pressure gas is connected through a pipeline. Air outlets are located on the sides of the cleaning block, spraying high-pressure gas to clean the material receiving surface. The pipeline is connected to an external high-pressure gas source.

[0012] Furthermore, this application also proposes that the hopper be equipped with a drive assembly for extending and retracting the cleaning block. When the hopper discharges material, the cleaning block retracts, making its top surface flush with the receiving surface to prevent protruding cleaning blocks from obstructing the normal discharge of material. When cleaning is required, the cleaning block extends.

[0013] Furthermore, this application proposes that the drive assembly is an electromagnetic push-pull assembly, with one end of the electromagnetic push-pull assembly mounted on the hopper and the other end mounted on the cleaning block. The drive assembly may also use linear motion components such as electric push rods.

[0014] Furthermore, this application also proposes that the hopper be equipped with a limiting block for restricting the movement of the cleaning block. The limiting block is used to restrict the movement of the cleaning block.

[0015] The beneficial effects of this utility model embodiment are as follows:

[0016] This application achieves active cleaning of materials adhering to the receiving surface of the silo by directly placing a cleaning block on the receiving surface and combining it with a high-pressure gas jet design through side vents. Compared to traditional manual cleaning or vibratory cleaning methods, this application uses high-pressure gas as a power source. Through airflow disturbance, it can effectively peel off the existing adhesive layer on the receiving surface while inhibiting the initial adhesion of new material. This structural design avoids the problems of low efficiency and high risk of manual cleaning, as well as the poor cleaning effect of vibrators on sticky materials, providing an efficient and stable solution for cleaning the receiving surface of the silo. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a cross-sectional view of the cleaning block of this utility model.

[0020] In the diagram: 1. Hopper; 2. Cleaning block; 3. Pipe; 4. Vent; 5. Drive assembly; 6. Limit block. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] See Figures 1 to 3 This utility model discloses a multi-directional cleaning device for a silo, used to clean the receiving surface of a silo 1. It includes a cleaning block 2, disposed on the receiving surface of the silo 1, connected to a high-pressure gas supply via a pipe 3, and an air outlet 4 positioned on the side of the cleaning block 2 to spray high-pressure gas for cleaning the receiving surface. The pipe 3 is externally connected to a high-pressure gas source.

[0023] The air outlet 4 can be understood as an opening structure for directional injection of high-pressure gas, and its layout directly affects the cleaning effect. Specifically, the air outlet 4 can be arranged in a single row or multiple rows, and its injection direction can be designed to be parallel, inclined, or perpendicular to the receiving surface by adjusting the angle to meet different cleaning needs. For example, in some scenarios, the injection direction of the air outlet 4 can be designed to form a certain angle with the receiving surface, thereby creating an oblique airflow and enhancing the peeling ability of the adhered material. In addition, the orifice size and number of the air outlet 4 can be adjusted according to the required gas flow rate and pressure to ensure the uniformity and stability of the airflow during the cleaning process.

[0024] This application achieves active cleaning of materials adhering to the receiving surface by directly placing the cleaning block 2 on the receiving surface of the hopper 1 and combining it with a high-pressure gas jet design via the side air outlet 4. Compared to traditional manual cleaning or vibratory cleaning methods, this application uses high-pressure gas as a power source. Through airflow disturbance, it can effectively peel off the existing adhesive layer on the receiving surface while inhibiting the initial adhesion of new materials. This structural design avoids the problems of low efficiency and high risk of manual cleaning, as well as the poor cleaning effect of vibrators on sticky materials, providing an efficient and stable solution for cleaning the receiving surface of the hopper 1.

[0025] The working principle of this embodiment is as follows: The cleaning block 2 is placed on the receiving surface of the hopper 1 and connected to an external high-pressure air source through a pipe 3, thereby introducing high-pressure gas into the cleaning block 2. Air outlets 4 are located on the side of the cleaning block 2. When the high-pressure gas enters the cleaning block 2 through the pipe 3, it is ejected from the air outlets 4, forming an airflow with a certain impact force. This airflow directly acts on the receiving surface of the hopper 1, using the kinetic energy of the high-pressure gas to peel and clean the adhering material on the receiving surface. The cleaning block 2 is positioned close to the receiving surface, allowing the airflow to accurately cover the material adhesion area, avoiding the formation of blind spots. Furthermore, the layout of the air outlets 4 creates a dynamic angle between the jet airflow and the receiving surface, ensuring both the impact strength of the airflow and expanding the cleaning range, thereby effectively removing the adhering layer formed on the receiving surface. Through the synergistic effect of the cleaning block 2 and the air outlet 4, combined with the dynamic characteristics of high-pressure gas, a multi-directional cleaning function for the material receiving surface of the hopper 1 is achieved, solving the blockage problem caused by material adhesion and accumulation. At the same time, it avoids the shortcomings of traditional manual cleaning, such as low efficiency and high risk, as well as the poor cleaning effect of vibrators on sticky materials.

[0026] This application further explains that the hopper 1 is equipped with a drive assembly 5 for driving the extension and retraction of the cleaning block 2. When the hopper 1 discharges material, the cleaning block 2 retracts, making the top surface of the cleaning block 2 flush with the receiving surface to prevent the protruding cleaning block 2 from obstructing the normal discharge of material. When cleaning is required, the cleaning block 2 extends.

[0027] Specifically, the drive component 5 refers to a mechanical structure capable of linear motion to drive the cleaning block 2 to extend and retract. It can be implemented using electromagnetic push-pull components, electric push rods, or pneumatic push rods, etc., with the aim of dynamically adjusting the position of the cleaning block 2 to solve the problem of material flow obstruction caused by fixed installation. The extension and retraction function of the cleaning block 2 relies on the precise control of the drive component 5, thereby achieving position switching under different working conditions.

[0028] This application achieves dynamic adjustment of the working state of the cleaning block 2 by introducing a drive component 5. During material feeding, the drive component 5 drives the cleaning block 2 to fully retract to a state flush with the receiving surface, eliminating the physical obstruction to material flow caused by the original protruding cleaning block 2, ensuring smooth material descent, and preventing material impact on the air outlet 4 causing blockage. When cleaning is required, the drive component 5 pushes the cleaning block 2 to actively extend, forming a protruding structure. At this time, a high-pressure gas jet channel is formed between the cleaning block 2 and the receiving surface, and the gas ejected through the air outlet 4 generates impact force to remove adhering material. This retractable design retains the core advantages of high-pressure gas cleaning while cleverly solving the spatial conflict between the cleaning device and material flow.

[0029] It is particularly noteworthy that the flush state of cleaning block 2 is not a simple structural simplification, but rather a functional decoupling achieved through dynamic adjustment—it is fully integrated into the contour of the receiving surface during non-cleaning periods, and transforms into an efficient cleaning execution unit during cleaning periods. This state transition mechanism effectively extends the service life of cleaning block 2 and improves the reliability of the overall system.

[0030] This application further proposes that the drive assembly 5 is an electromagnetic push-pull assembly, with one end of the electromagnetic push-pull assembly mounted on the hopper 1 and the other end mounted on the cleaning block 2. The drive assembly 5 may also use linear motion components such as electric push rods.

[0031] Drive component 5 is the core component used to realize the telescopic movement of cleaning block 2. It can be implemented using an electromagnetic push-pull structure or a mechanical transmission structure. The electromagnetic push-pull component generates linear push-pull force through the principle of electromagnetic induction, enabling rapid response to control signals and precise displacement. The electric actuator, on the other hand, achieves linear motion through mechanical transmission methods such as a motor driving a lead screw or rack and pinion, exhibiting strong environmental adaptability and stability. The purpose of introducing these two drive methods is to provide diverse technical options to meet the specific needs of different industrial scenarios.

[0032] This application utilizes an electromagnetic push-pull assembly, with its two ends fixedly connected to the hopper 1 and the cleaning block 2 respectively, to directly convert electrical energy into linear motion. When the cleaning block 2 needs to retract, the electromagnetic push-pull assembly can quickly respond to control commands, ensuring the top surface of the cleaning block 2 is flush with the receiving surface, guaranteeing smooth material descent. During the cleaning phase, the electromagnetic push-pull assembly can precisely control the cleaning block 2 to extend to a designated position, working in conjunction with the vent 4 to complete the cleaning of the receiving surface. Notably, in situations involving strong electromagnetic interference or extreme temperatures, an electric actuator can be used as an alternative, ensuring reliable operation through mechanical transmission. This dual-scheme design not only overcomes the limitations of a single drive method but also significantly enhances the device's adaptability to complex industrial environments.

[0033] This application further proposes that the hopper 1 be equipped with a limiting block 6 for limiting the movement of the cleaning block 2. The movement of the cleaning block 2 is limited by the limiting block 6.

[0034] The limiting block 6 is a mechanical component with a rigid contact surface, which can be made of metal or high-strength engineering plastic. Its purpose is to provide physical constraints on the movement range of the cleaning block 2. In practical applications, the lower surface of the limiting block 6 forms a stop with the top of the cleaning block 2, ensuring that the cleaning block 2 is flush with the receiving surface when it retracts.

[0035] Precise control of the cleaning block 2 is achieved through the limiting mechanism of the limiting block 6. When the electromagnetic push-pull assembly drives the cleaning block 2 to retract, the lower surface of the limiting block 6 contacts the top of the cleaning block 2, forming a mechanical stop to prevent residual protrusions on the cleaning block 2 from obstructing material flow due to the stroke error of the electromagnetic assembly.

[0036] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0039] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A multi-directional cleaning device for a silo, used for cleaning the receiving surface of a silo (1), characterized in that, include: The cleaning block (2) is set on the receiving surface of the hopper (1) and connected to high-pressure gas through the pipe (3). The air outlet (4) is located on the side of the cleaning block (2) and sprays high-pressure gas to clean the receiving surface; The hopper (1) is provided with a drive assembly (5) for driving the cleaning block (2) to extend and retract. The drive component (5) is an electromagnetic push-pull component, with one end of the electromagnetic push-pull component set on the hopper (1) and the other end set on the cleaning block (2).

2. The multi-directional cleaning device for silos according to claim 1, characterized in that, The hopper (1) is provided with a limiting block (6) for limiting the cleaning block (2).

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