Material pneumatic transfer anti-sticking device

Abstract

The utility model relates to the technical field of wind sample delivery system, and specifically discloses a raw material wind connection anti -sticking device, including sample box, the sample box includes base body, is made of metal material, composite anti -sticking lining is set up in the inner wall of base body, the composite anti -sticking lining includes the Teflon coating as passive anti -sticking layer and embedded heating element as active anti -sticking layer, through the combination of passive anti -sticking, active heating and modular structure, the adhesion and cross -contamination problem of high humidity powdery material in the automatic sample delivery process is solved, the residue of material in the container is reduced from the root, the accuracy of detection data is improved, the dependence on manual cleaning is reduced significantly, the overall production efficiency is improved, the modular structure prolongs the service life of the device main part, and the maintenance of the core anti -sticking component becomes fast and low -cost, has good comprehensive economic benefits and application popularization value.

Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic sample delivery systems, and specifically discloses a pneumatic connection and anti-sticking device for raw materials. Background Technology

[0002] In material inspection processes in industries such as steel, metallurgy, and chemicals, pneumatic sample delivery systems are key equipment for achieving rapid sample transfer. This system uses pneumatic power to transport specialized sample boxes containing raw material samples through sealed pipelines to the sample preparation center. Subsequently, a robot grasps the sample box and pours the contents into the next process unit for automated preparation and analysis. This automated process is crucial for ensuring production efficiency and product quality stability.

[0003] However, in practical applications, existing sample containers have significant drawbacks when conveying sticky materials such as fine-particle powders with high moisture content. The material easily adheres to the smooth inner wall of the sample container, making it difficult to remove completely through conventional emptying and purging operations. These residues accumulate inside the container and cause cross-contamination when conveying different batches of samples, severely affecting the accuracy of the analytical data. Currently, the main approach to solving this problem is to frequently interrupt the robotic system for manual cleaning. However, this not only significantly reduces the operating efficiency of the automated line and increases labor costs, but also makes it difficult to guarantee the continuous and stable operation of the system. Utility Model Content

[0004] This invention proposes a pneumatic connection and anti-sticking device for raw materials. By combining passive anti-sticking, active heating and modular structure, it solves the problem of adhesion and cross-contamination of high-humidity powdery materials in the automated sample delivery process.

[0005] This utility model is implemented as follows: a raw material pneumatic connection anti-sticking device includes a sample box, wherein the sample box includes:

[0006] The substrate is made of metallic materials;

[0007] A composite anti-stick liner is disposed on the inner wall of the substrate. The composite anti-stick liner includes a Teflon coating as a passive anti-stick layer and an embedded heating element as an active anti-stick layer.

[0008] As a preferred embodiment of the pneumatic connection and anti-sticking device for raw materials according to this utility model, the sample box adopts a modular structure, and the substrate includes:

[0009] The main frame constitutes the main supporting structure of the sample box;

[0010] The inner liner is detachably connected to the inside of the main frame, and the composite non-stick liner is provided on the inner liner.

[0011] As a preferred embodiment of the pneumatic connection and anti-sticking device for raw materials of this utility model, a thermally conductive insulating layer is provided between the inner liner and the main frame, and the thermally conductive insulating layer is tightly attached to the outer surface of the embedded heating element.

[0012] As a preferred embodiment of the pneumatic connection and anti-sticking device for raw materials of this utility model, the surface of the Teflon coating is provided with a micro-guide groove structure, which is a mesh, radial or spiral groove with a depth of 10-50 micrometers formed by laser etching.

[0013] As a preferred embodiment of the pneumatic connection and anti-sticking device for raw materials of this utility model, the embedded heating element is a flexible silicone heating sheet.

[0014] As a preferred embodiment of the pneumatic connection and anti-sticking device for raw materials of this utility model, the metal material of the substrate is 304 stainless steel.

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

[0016] By combining passive anti-sticking, active heating, and modular structure, the problem of adhesion and cross-contamination of high-humidity powdery materials during automated sample delivery is solved. This fundamentally reduces material residue in the container, greatly improves the accuracy of test data, significantly reduces reliance on manual cleaning, and ensures continuous and efficient automated operation of the pneumatic sample delivery and robotic sample preparation system. This improves overall production efficiency. The modular structure extends the service life of the main body of the device and makes the maintenance of core anti-sticking components quick and cost-effective, demonstrating good comprehensive economic benefits and application promotion value. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a diagram showing the overall external structure of the present invention;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the inner liner of this utility model.

[0021] The markings in the diagram are: 1. Sample box; 2. Substrate; 3. Teflon coating; 4. Embedded heating element; 5. Main frame; 6. Inner liner; 7. Thermally conductive insulation layer. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-3 A pneumatic connection and anti-sticking device for raw materials, comprising a sample box 1, wherein the sample box 1 includes:

[0024] Matrix 2 is made of metallic material;

[0025] A composite anti-stick liner is disposed on the inner wall of the substrate 2. The composite anti-stick liner includes a Teflon coating 3 as a passive anti-stick layer and an embedded heating element 4 as an active anti-stick layer.

[0026] In this embodiment: the substrate 2 of the sample box 1 is made of robust 304 stainless steel to withstand mechanical gripping. A composite anti-stick liner is installed inside, combining a Teflon coating 3 as a passive anti-stick layer and an embedded heating element 4 as an active anti-stick layer. The Teflon coating 3 provides a basic anti-stick effect due to its extremely low surface energy, while the embedded heating element 4 is a flexible silicone heating sheet that actively heats the inner liner 6 at low temperatures, evaporating surface moisture and reducing stickiness at the source. This achieves a dual anti-stick effect of passive defense and active intervention. Furthermore, the device adopts a modular design, separating the main frame 5 from the inner liner 6 with its built-in composite anti-stick liner. The inner liner 6 serves as a quickly replaceable consumable part. If the anti-sticking performance deteriorates after long-term use, the inner liner 6 can be directly replaced, which greatly improves the maintainability and service life of the equipment. At the same time, a thermally conductive insulating layer 7 is filled between the inner liner 6 and the main frame 5. This layer can efficiently and evenly transfer the heat generated by the embedded heating element 4 to the entire working surface of the inner liner 6 to avoid local overheating, and also serve as an electrical insulation barrier to ensure the electrical safety of the main frame 5. A mesh or spiral micro-guide channel structure with a depth of 10 to 50 micrometers is formed on the surface of the Teflon coating 3 through laser etching. This structure can effectively reduce the actual contact area between the material and the inner wall and guide the airflow to promote powder slippage during pouring, further enhancing the anti-sticking and emptying effect.

[0027] As a technical optimization of this utility model, the sample box 1 adopts a modular structure, and the base 2 includes:

[0028] The main frame 5 constitutes the main supporting structure of sample box 1;

[0029] The inner liner 6 is detachably connected to the inside of the main frame 5, and a composite non-stick liner is provided on the inner liner 6.

[0030] In this embodiment, the sample box 1 is designed as a modular structure, consisting of a main frame 5 that bears the main mechanical load and an inner liner 6 that carries the anti-stick function. This achieves the separation of function and structure. When the anti-stick liner wears out, there is no need to replace or repair the entire sample box 1. Only the lower-cost inner liner 6 module needs to be replaced, which greatly reduces maintenance costs and time and improves the economic efficiency and ease of maintenance of the equipment.

[0031] As a technical optimization of this utility model, a thermally conductive insulating layer 7 is provided between the inner liner 6 and the main frame 5, and the thermally conductive insulating layer 7 is closely attached to the outer surface of the embedded heating element 4.

[0032] In this embodiment, a thermally conductive insulating layer 7 is provided between the inner liner 6 and the main frame 5. This layer is closely attached to the outer surface of the embedded heating element 4. The thermally conductive insulating layer 7 acts as a heat spreader, allowing heat to spread quickly and evenly throughout the inner liner 6, avoiding local high or low temperatures, and ensuring the consistency of the heating and anti-sticking effect. Electrically, it acts as a reliable insulator, ensuring that the main frame 5 is not electrified, eliminating the risk of leakage during operation, and enhancing the safety of the equipment.

[0033] As a technical optimization of this utility model, the surface of the Teflon coating 3 is provided with a micro-channel structure, which is a mesh, radial or spiral groove with a depth of 10-50 micrometers formed by laser etching.

[0034] In this embodiment, micro-mesh or spiral flow channels are created on the surface of the Teflon coating 3. By utilizing surface microstructure engineering, on the one hand, the actual contact area between the material and the coating surface is significantly reduced, weakening the adhesion force. On the other hand, these channels can guide the airflow when the sample is tilted, creating a guiding effect that makes it easier for the powder to move towards the outlet.

[0035] As a technical optimization of this utility model, the embedded heating element 4 is a flexible silicone heating sheet.

[0036] In this embodiment, the embedded heating element 4 is a flexible silicone heating sheet. This type of heater has good flexibility and can be closely attached to the outer wall of the inner liner 6 to ensure heat conduction efficiency. At the same time, silicone material has the advantages of high temperature resistance, aging resistance and good insulation properties, making it very suitable for long-term use in industrial environments that require reliable and uniform heating.

[0037] As a technical optimization of this utility model, the metal material of the substrate 2 is 304 stainless steel.

[0038] In this embodiment, the metal material of the substrate 2 is 304 stainless steel, which has high strength, strong corrosion resistance, and long service life.

[0039] The working principle and usage process of this utility model are as follows: First, the embedded heating element 4, i.e., the flexible silicone heating sheet, is powered on to preheat the entire inner liner 6 and maintain its working temperature within the set range of 50 to 80 degrees Celsius. This process effectively dries the surface moisture of the powder mineral sample to be received, significantly reducing its inherent stickiness. When the sample enters the sample box 1 through pneumatic conveying and reaches the interior of the inner liner 6, the Teflon coating 3 on its inner wall provides the first layer of anti-stick protection due to its extremely low coefficient of friction. The precise micro-guide channel structure on the coating surface further assists by reducing the contact area and guiding the airflow. For anti-sticking and subsequent emptying, during the entire working process, heat is emitted from the embedded heating element 4 and efficiently and evenly transferred to the entire working surface of the inner liner 6 through the tightly fitted thermally conductive insulation layer 7, thereby ensuring uniform heating of the material. At the same time, the thermally conductive insulation layer 7 ensures that the main frame 5 is always isolated from the circuit, ensuring operational safety. When maintenance is required or the anti-sticking performance of the inner liner 6 deteriorates due to long-term use, the operator can easily remove the old inner liner 6 from the main frame 5 and replace it with a new inner liner 6. The entire system can then quickly return to its optimal working state, achieving rapid maintenance without stopping or with only a short stop.

[0040] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0041] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A pneumatic connection and anti-sticking device for raw materials, comprising a sample box (1), characterized in that: The sample box (1) includes: The substrate (2) is made of metallic material; A composite anti-stick liner is disposed on the inner wall of the substrate (2). The composite anti-stick liner includes a Teflon coating (3) as a passive anti-stick layer and an embedded heating element (4) as an active anti-stick layer.

2. The raw material pneumatic connection anti-sticking device according to claim 1, characterized in that: The sample box (1) adopts a modular structure, and the substrate (2) includes: The main frame (5) constitutes the main support structure of the sample box (1); The inner liner (6) is detachably connected to the inside of the main frame (5), and the composite anti-stick liner is provided on the inner liner (6).

3. The raw material pneumatic connection anti-sticking device according to claim 2, characterized in that: A thermally conductive insulating layer (7) is provided between the inner liner (6) and the main frame (5), and the thermally conductive insulating layer (7) is closely attached to the outer surface of the embedded heating element (4).

4. The raw material pneumatic connection anti-sticking device according to claim 1, characterized in that: The surface of the Teflon coating (3) is provided with a micro-channel structure, which is a mesh, radial or spiral groove with a depth of 10-50 micrometers formed by laser etching.

5. The raw material pneumatic connection anti-sticking device according to claim 1, characterized in that: The embedded heating element (4) is a flexible silicone heating sheet.

6. The raw material pneumatic connection anti-sticking device according to claim 1, characterized in that: The metal material of the substrate (2) is 304 stainless steel.

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