Anti-blocking chute device

Abstract

The utility model provides an anti-blocking chute device which comprises a barrel-shaped shell and a lining structure, the lining structure is fixed on the inner wall of the barrel-shaped shell, a groove used for containing materials is formed by the lining structure in a surrounding mode, a plurality of protruding structures are distributed on the surface of the lining structure, and a gap is formed between every two adjacent protruding structures. As the material particles moving along the extending direction of the chute can carry the gas in the particle gaps and the gas close to the particle group to flow at the beginning of entering the chute, the gas passes through the gaps among the plurality of bulge structures on the lining structure to form a bottom gas film, so that the material particles are prevented from entering the chute; the material particles are isolated from the lining structure to a certain extent, adhesion of the material particles to the surface of the lining structure is reduced, and therefore the situation that the materials are accumulated and blocked in the transportation process of the materials such as wet and sticky slack coal can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chutes, and in particular to an anti-blocking chute device. Background Art

[0002] A chute is a trough used to transport things from high to low. It has a smooth inner surface and materials can slide down automatically. It is mainly used in fields such as coal transportation.

[0003] At present, in the production system of coal washing plants, there are multiple conveyors for transporting materials. As the channel for materials, the fine coal with a particle size of less than 20 mm is easy to accumulate in the chute under high humidity. After the accumulation, the transportation efficiency is affected, and the machine needs to be stopped for cleaning, which affects the production efficiency. Utility Model Content

[0004] The utility model provides an anti-blocking chute device to solve the problem in the prior art that fine coal is easily blocked in the chute.

[0005] In order to solve the above problems, the utility model provides an anti-blocking chute device, including a cylindrical outer shell and a lining structure, wherein the lining structure is fixed to the inner wall of the cylindrical outer shell, the lining structure is surrounded by a groove for accommodating materials, and a plurality of protrusion structures are distributed on the surface of the lining structure, and there is a gap between two adjacent protrusion structures.

[0006] Furthermore, the height of the protruding structure is 1 mm to 5 mm.

[0007] Furthermore, the distance between two adjacent protrusion structures is 1 mm to 5 mm.

[0008] Furthermore, the lining structure is a plate-like structure formed by casting.

[0009] Furthermore, the thickness of the lining structure is 10 mm to 30 mm.

[0010] Furthermore, the lining structure has a plurality of countersunk holes, and fasteners are inserted into the countersunk holes to be fixedly connected with the cylindrical shell.

[0011] Furthermore, the lining structure includes a plurality of lining plates spliced ​​in sequence, and each of the lining plates is detachably connected to the cylindrical outer shell.

[0012] Furthermore, the joint positions of two adjacent inner lining panels are connected by a step structure.

[0013] Furthermore, the cross section of the cylindrical shell is rectangular, and the thickness of the cylindrical shell is 10 mm to 20 mm.

[0014] Furthermore, the anti-blocking chute device also includes a protective shell, which wraps the cylindrical outer shell and is made of polyurethane material.

[0015] The technical solution of the utility model is applied to provide an anti-blocking chute device, including a cylindrical outer shell and a lining structure, wherein the lining structure is fixed to the inner wall of the cylindrical outer shell, the lining structure is surrounded by a groove for accommodating materials, and a plurality of protruding structures are distributed on the surface of the lining structure, and there is a gap between two adjacent protruding structures. When the material particles initially enter the chute, the material particles moving along the extension direction of the chute will carry the gas in the gap between the particles and the gas flow next to the particle group, and the gas passes through the gaps between the plurality of protruding structures on the lining structure to form a bottom air film, which plays a role in isolating the material particles from the lining structure to a certain extent, and reduces the adhesion of the material particles on the surface of the lining structure, so that the occurrence of material blockage can be reduced during the transportation of wet and sticky coal and other materials.

[0016] The application of this solution will play a positive role in improving the production efficiency of coal washing plants, improve the quality of finished coal, increase the service life of chute equipment, reduce dust and noise pollution, improve the quality of the working environment, and also generate considerable economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The structure diagram of the anti-blocking chute device provided in the first embodiment of the utility model is shown;

[0019] Figure 2 A schematic diagram of the lining structure in the anti-blocking chute device provided in the second embodiment of the present utility model is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Cylindrical shell;

[0022] 20. Lining structure;

[0023] 21. Raised structure;

[0024] 22. Countersunk hole;

[0025] 23. Lining board;

[0026] 30. Fasteners. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] like Figure 1 to Figure 2 As shown, an embodiment of the utility model provides an anti-blocking chute device, including a cylindrical outer shell 10 and a lining structure 20, wherein the lining structure 20 is fixed to the inner wall of the cylindrical outer shell 10, and the lining structure 20 is surrounded by a groove for accommodating materials, and a plurality of protruding structures 21 are distributed on the surface of the lining structure 20, and there is a gap between two adjacent protruding structures 21.

[0029] When the material particles initially enter the chute, the material particles moving along the extension direction of the chute will carry the gas in the gaps between the particles and the gas flow close to the particle group. In this scheme, the gas passes through the gaps between the multiple protrusions 21 on the lining structure 20 to form a bottom air film, which to a certain extent plays a role in isolating the material particles from the lining structure 20 and reducing the adhesion of the material particles to the surface of the lining structure 20. Therefore, the occurrence of material blockage can be reduced during the transportation of materials such as wet and sticky coal.

[0030] The height of the protruding structure 21 is 1 mm to 5 mm, so that a suitable distance can be maintained between most materials and the lining structure 20, which is conducive to spacing through the air film.

[0031] In this embodiment, the distance between two adjacent protrusion structures 21 is 1 mm to 5 mm. Such a distance is suitable for gas to pass through, avoiding the difficulty in forming an air film due to a too small distance, and avoiding the leakage of more material particles due to a too large distance.

[0032] The lining structure 20 is a plate-shaped structure formed by casting, which is easy to process. The lining structure 20 can be made of wear-resistant steel plate.

[0033] In this solution, the thickness of the lining structure 20 is 10 mm to 30 mm. In this way, the lining structure 20 has sufficient strength to withstand the impact of the material.

[0034] like Figure 2As shown, in one embodiment, the lining structure 20 has a plurality of countersunk holes 22, and fasteners 30 are inserted into the countersunk holes 22 to be fixedly connected with the cylindrical shell 10. This prevents the fasteners 30 from protruding from the surface of the lining structure 20, and prevents the fasteners 30 from obstructing material transportation.

[0035] like Figure 1 As shown, the lining structure 20 includes a plurality of lining plates 23 that are sequentially spliced ​​together, and each of the lining plates 23 is detachably connected to the cylindrical outer shell 10 .

[0036] Since the lining structure in the existing chute adopts an integrated design, when the lining structure is partially worn during the use of the chute, it cannot be partially repaired by replacement, and the replacement operation can only be replaced as a whole, which is costly. By setting the lining structure 20 to include a plurality of lining plates 23 spliced ​​in sequence, the single lining plate 23 that is severely worn can be replaced, reducing the cost.

[0037] The cylindrical shell 10 can also be configured as a detachable splicing structure to achieve replacement of individual parts. In addition, the cylindrical shell 10 can be configured as a detachable splicing structure to facilitate replacement of the inner lining plate 23.

[0038] In this solution, the splicing positions of two adjacent inner lining plates 23 are connected by a step structure, so that the positioning is accurate and the connection is reliable.

[0039] In this solution, the liner needs to reduce friction with the material, thereby reducing the risk of wear and blockage. The material selection and processing method of the liner are crucial to improving the service life and performance of the chute.

[0040] In different embodiments, the following schemes may be adopted in terms of material selection:

[0041] a. High chromium steel: High chromium steel has higher hardness and wear resistance, and is suitable for high-load and high-wear chute environments.

[0042] b. Stainless steel: Stainless steel has good corrosion resistance and is suitable for conveying materials containing corrosive substances.

[0043] c. Polyurethane (PU): Polyurethane has good wear resistance and impact resistance, and is suitable for light load and low wear chute environments.

[0044] d. Polyethylene (PE): Polyethylene has a low friction coefficient and good wear resistance, and is suitable for chutes that need to reduce friction resistance.

[0045] The processing methods of the lining plate can be as follows:

[0046] a. Casting: Casting is a common method of processing metal lining plates, which can produce lining plates with complex shapes and precise dimensions.

[0047] b. Welding: Welding is the process of welding metal plates or pipes into the required lining plate shape, which is suitable for the processing of various metal materials.

[0048] c. Thermal spraying: Thermal spraying is a surface treatment technology that can spray a layer of wear-resistant material on the surface of the lining plate to improve its wear resistance.

[0049] d. Mechanical processing: Mechanical processing includes milling, turning, drilling and other methods, which can produce precise lining plate size and shape.

[0050] When selecting the lining material and processing method, it is necessary to comprehensively consider factors such as the specific working conditions of the chute, material characteristics and cost budget. At the same time, the performance and service life of the chute can be further improved by optimizing the chute structure design, adopting appropriate conveying speed and material concentration, etc.

[0051] The cross section of the cylindrical shell 10 is rectangular, and the thickness of the cylindrical shell 10 is 10 mm to 20 mm. This provides sufficient structural strength. Of course, the cross section of the cylindrical shell 10 can be set to different shapes as needed.

[0052] The cylindrical shell 10 can be made of the following materials:

[0053] Steel plate: Steel plate is the most common material for chute shell, with high strength and wear resistance. Common steel plate materials include Q235, Q345, etc. Select the appropriate steel plate according to the requirements of coal transportation and the working conditions of the equipment.

[0054] Stainless steel: Stainless steel has good corrosion resistance and wear resistance, and is suitable for coal transportation in some special environments. Common stainless steel materials include 304, 316, etc.

[0055] Alloy steel: Alloy steel has higher strength and wear resistance, and is suitable for high-load and high-wear coal transportation environments. Common alloy steel materials include 42CrMo, 35CrMo, etc.

[0056] FRP: FRP has good corrosion resistance and light weight, and is suitable for some lightweight and corrosion-resistant coal transportation occasions.

[0057] The cylindrical housing 10 can be processed by the following methods:

[0058] Cutting: Cut the selected material into required shapes and sizes according to the design dimensions of the chute.

[0059] Bending: Use a bending machine to bend the cut materials to form the various parts of the chute shell.

[0060] Connection: The bent parts are welded or fastened together to form a complete chute shell. During the welding process, the welding parameters need to be controlled to ensure the welding quality.

[0061] Surface treatment: In order to improve the corrosion resistance and wear resistance of the chute shell, surface treatment can be carried out, such as spraying anti-rust paint, thermal spraying cemented carbide, etc.

[0062] Installation: Assemble the processed chute shell with the conveyor belt, bracket and other components to form a complete chute equipment.

[0063] During the processing, strict quality control is required for each link to ensure that the dimensional accuracy, welding quality, surface treatment and other aspects of the chute shell meet the design requirements. In short, when selecting the chute shell material, it is necessary to select the appropriate material according to the specific requirements of coal transportation and the working environment. During the processing, attention should be paid to the quality control of each link to ensure that the performance of the chute shell meets the requirements of coal transportation.

[0064] Furthermore, the anti-blocking chute device also includes a protective shell, which wraps the cylindrical shell 10, and the protective shell is made of polyurethane material. Its main purpose is to protect the cylindrical shell 10 and prevent the cylindrical shell 10 from rusting due to environmental factors, and also to provide better sound insulation and dust prevention.

[0065] Optionally, in order to effectively prevent the accumulation and blockage of materials in the chute device, the following structural designs and specific solutions can be adopted:

[0066] Make sure the chute has an appropriate inclination angle so that the material can slide down smoothly. Generally speaking, an inclination angle of 20-30 degrees is more appropriate.

[0067] Designing a corrugated or spiral structure inside the chute can increase the fluidity of the material and prevent the material from piling up in a certain area.

[0068] A vibration flow-aiding system is installed on the cylindrical shell to help the material overcome friction through vibration and prevent the material from stagnating in the chute.

[0069] Develop a regular cleaning and maintenance plan, regularly inspect the inner wall of the chute, and clean the attached materials to keep the chute unobstructed.

[0070] Diversion structures are designed at certain key locations of the chute to allow materials to flow in a dispersed manner and reduce the risk of blockage.

[0071] In some cases, air can be injected into the chute to assist the flow of material and reduce material accumulation.

[0072] The application of this solution will play a positive role in improving the production efficiency of coal washing plants, improve the quality of finished coal, increase the service life of chute equipment, reduce dust and noise pollution, improve the quality of the working environment, and also generate considerable economic benefits.

[0073] When in use, the anti-blocking chute device needs to be in multiple sections, connected according to the required material conveying direction.

[0074] Before starting to connect, make sure all chutes are clean and free of debris and coal dust. Also check the chute connection parts, such as bolts, flanges, etc., to ensure they are intact.

[0075] Determine the installation position of each chute according to the design drawings or actual conditions on site. Make sure the angle and height between the chutes meet the design requirements to ensure smooth coal flow.

[0076] After the chute location is determined, install the chute bracket. The bracket needs to be firmly fixed to the ground or supporting structure to ensure the stability of the chute.

[0077] Align the connecting ends of the two sections of chute and fasten them together using bolts, flanges and other fasteners. During the connection process, ensure that the gap between the chutes is minimized to reduce the resistance to coal flow.

[0078] Adjust the angle of the chute according to the direction and speed of the coal flow. Generally, the angle of the chute should be gradually increased to help the coal flow smoothly transition from one chute to the next.

[0079] Install buffer devices, such as rubber pads or buffer strips, at the chute connections to reduce the impact of coal flow on the chute and extend the service life of the chute.

[0080] During the connection process, ensure that the chutes are well sealed to prevent coal dust leakage. If necessary, sealant or other sealing materials can be added to the joints.

[0081] After all chute connections are completed, check the installation quality of the entire chute system. Make sure all bolts are tightened, there is no leakage at the flange connection, and the chute angle and height meet the design requirements.

[0082] After ensuring that the chute is correctly installed, conduct a trial run. Observe whether the coal flow is smooth and whether the chute has obvious vibration or abnormal sound. If necessary, adjust the position and angle of the chute in time.

[0083] After the chute is put into use, regular maintenance and inspection are carried out to ensure the stability and safety of the chute system.

[0084] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0085] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0086] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0087] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words 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 cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0088] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0089] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A chute anti-blocking device, characterized in that: The invention comprises a cylindrical outer shell (10) and an inner lining structure (20), wherein the inner lining structure (20) is fixed to the inner wall of the cylindrical outer shell (10), the inner lining structure (20) surrounds and forms a groove for accommodating materials, and a plurality of protruding structures (21) are distributed on the surface of the inner lining structure (20), and a gap is provided between two adjacent protruding structures (21).

2. The anti-blocking chute device according to claim 1, characterized in that: The height of the protruding structure (21) is 1 mm to 5 mm.

3. The anti-blocking chute device according to claim 1, characterized in that: The distance between two adjacent protruding structures (21) is 1 mm to 5 mm.

4. The anti-blocking chute device according to claim 1, characterized in that: The lining structure (20) is a plate-shaped structure formed by casting.

5. The anti-blocking chute device according to claim 1, characterized in that: The thickness of the lining structure (20) is 10 mm to 30 mm.

6. The anti-blocking chute device according to claim 1, characterized in that: The lining structure (20) is provided with a plurality of countersunk holes (22), and fasteners (30) are inserted into the countersunk holes (22) to be fixedly connected with the cylindrical outer shell (10).

7. The anti-blocking chute device according to claim 1, characterized in that: The lining structure (20) comprises a plurality of lining plates (23) that are spliced ​​in sequence, and each of the lining plates (23) is detachably connected to the cylindrical outer shell (10).

8. The anti-blocking chute device according to claim 7, characterized in that: The splicing positions of two adjacent inner lining plates (23) are connected by means of a step structure.

9. The anti-blocking chute device according to claim 1, characterized in that: The cross section of the cylindrical shell (10) is rectangular, and the thickness of the cylindrical shell (10) is 10 mm to 20 mm.

10. The anti-blocking chute device according to claim 1, characterized in that: The anti-blocking chute device also includes a protective shell, which wraps the cylindrical outer shell (10), and the protective shell is made of polyurethane material.

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