Coal flow sampling equipment for coal flow conveying line
The sampling plate structure controlled by the limiting plate and electric push rod solves the problem of coal diversion during coal flow sampling, and realizes stable coal flow transportation and effective sample collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
AI Technical Summary
Existing coal flow sampling equipment is prone to coal compression during the sampling process, causing coal to be diverted to both sides of the conveying mechanism, which affects the stability of coal flow transportation.
A coal flow sampling device for use in a coal flow conveying line was designed. It adopts a combination structure of a limiting plate, an electric push rod, a sampling plate and a sampling box. The limiting plate gathers the coal flow, and the electric push rod controls the opening and closing of the sampling plate to realize the collection and storage of coal samples.
This method avoids coal diversion during sampling, ensures stable coal flow, and guarantees the effective collection and storage of coal samples.
Smart Images

Figure CN223976869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal flow sampling technology, and more specifically, to a coal flow sampling device used in a coal flow conveying line. Background Technology
[0002] Coal flow refers to the entire process of coal mining from extraction to transportation to the surface. As an important link in mine production, it directly affects the mine's production efficiency and economic benefits. In order to ensure the quality of coal products, coal samples need to be collected from the flowing coal flow for testing during the coal transportation process.
[0003] In existing technologies, when sampling coal flow, the contact between the sampling equipment and the coal flow causes compression of the coal, resulting in the coal being diverted to both sides of the conveying mechanism. This can easily lead to coal detaching from the conveying mechanism and affect the stability of coal flow transportation.
[0004] Based on this, a coal flow sampling device for use in a coal flow conveying line is proposed. Summary of the Invention
[0005] The main objective of this invention is to provide a coal flow sampling device for use in coal flow conveying lines, so as to overcome the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides a coal flow sampling device for use in a coal flow conveying line, including a conveying line and an assembly frame. The assembly frame is fixedly installed on the middle of both sides of the upper surface of the conveying line. A limiting plate is fixedly provided on the lower part of the side of the inner surface of the assembly frame that is close to each other. A support seat is fixedly installed on the middle of the upper surface of the assembly frame. An electric push rod is inserted through the middle of the rear end of the upper surface of the support seat.
[0007] A sampling box is fixedly installed in the middle of the top surface of the assembly frame. An "L"-shaped sampling plate is movably installed on the rear end of the lower surface of the sampling box via a hinge. A control rod is movably installed in the middle of the rear end of the bottom surface of the sampling plate. The other end of the control rod is fixedly connected to the output end of the electric push rod. A guide block is fixedly provided on the bottom surface of the sampling plate. The upper surface of the guide block is convex in the middle.
[0008] As a further improvement of this utility model, the lower surface of the limiting plate is in contact with the upper surface of the conveyor line, and both ends of the limiting plate are convex arc-shaped.
[0009] As a further improvement of this utility model, a movable component is provided at the connection between the control rod and the sampling plate, and the movable component includes several movable buckles that are hinged to each other.
[0010] As a further improvement of this utility model, a drainage tube is provided through the lower part of both sides of the outer surface of the sampling box, and a sealing plate is fixedly provided at the other end of the drainage tube.
[0011] As a further improvement of this utility model, a sample storage box is fixedly installed on the middle of both sides of the outer surface of the conveyor line. A hook is fixedly provided on the upper part of the sample storage box on the side of the outer surface of the conveyor line. The hook is connected to the upper surface of the conveyor line. The sealing plate is inserted into the sample storage box. The outer surface of the sample storage box is provided with a layer line.
[0012] The beneficial effects of this utility model are:
[0013] This invention can gather coal during coal flow sampling, which facilitates sample collection and extraction while avoiding the phenomenon of coal being squeezed and diverted to both sides of the conveyor line during the sampling process. This helps to ensure the stability of normal coal flow transportation during the sampling process. Attached Figure Description
[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0015] Figure 1 This is a front three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the operation of this utility model;
[0017] Figure 3 This is a disassembled schematic diagram of the assembly frame structure of this utility model;
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the limiting plate of this utility model;
[0019] Figure 5 This is a schematic diagram showing the disassembled structure of the sampling box of this utility model;
[0020] Figure 6 This is a schematic diagram of the disassembly and cross-section of the sampling box structure of this utility model;
[0021] Figure 7 This is a disassembled cross-sectional diagram of the sampling box structure of this utility model.
[0022] In the diagram: 1. Conveyor line; 2. Assembly frame; 201. Limiting plate; 202. Support base; 3. Electric push rod; 4. Sampling box; 401. Sampling plate; 402. Control rod; 403. Guide block; 404. Drainage pipe; 405. Sealing plate; 5. Sample storage box; 501. Hook. Detailed Implementation
[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0026] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0027] Please see Figures 1-7 As shown, a coal flow sampling device used in a coal flow conveying line includes a conveying line 1 and an assembly frame 2. The assembly frame 2 is fixedly installed on the middle of both sides of the upper surface of the conveying line 1. A limiting plate 201 is fixedly provided on the lower part of the side of the inner surface of the assembly frame 2 that is close to each other. The lower surface of the limiting plate 201 is in contact with the upper surface of the conveying line 1. Both ends of the limiting plate 201 are convex arc-shaped. A support seat 202 is fixedly installed in the middle of the upper surface of the assembly frame 2. An electric push rod 3 is inserted through the middle of the rear end of the upper surface of the support seat 202.
[0028] A sampling box 4 is fixedly installed in the middle of the inner top surface of the assembly frame 2. An "L"-shaped sampling plate 401 is movably installed on the rear end of the lower surface of the sampling box 4 via a hinge. A control rod 402 is movably installed in the middle of the rear end of the inner bottom surface of the sampling plate 401. A movable component is provided at the connection between the control rod 402 and the sampling plate 401. The movable component includes several movable buckles that are hinged to each other. The other end of the control rod 402 is fixedly connected to the output end of the electric push rod 3. A guide block 403 is fixedly provided on the inner bottom surface of the sampling plate 401. The upper surface of the guide block 403 is convex in the middle.
[0029] A drainage pipe 404 is connected to the lower part of both sides of the outer surface of the sampling box 4. A sealing plate 405 is fixedly installed at the other end of the drainage pipe 404. A sample storage box 5 is fixedly installed on the middle part of both sides of the outer surface of the conveyor line 1. A hook 501 is fixedly installed on the upper part of the side of the sample storage box 5 closest to the outer surface of the conveyor line 1. The hook 501 is connected to the upper surface of the conveyor line 1. The sealing plate 405 is inserted into the sample storage box 5. The outer surface of the sample storage box 5 is provided with a layer line.
[0030] In use, this utility model can first control the coal flow to be transported normally on the conveyor line 1. When the coal flow reaches the sampling position, it can contact the limiting plate 201. Since both ends of the limiting plate 201 are convex arc-shaped, the limiting space formed by the limiting plate 201 presents a style with wide openings at both ends and narrow middle part. At this time, the coal flow can be gathered by entering the narrow space of the limiting plate 201 through the wide opening, which facilitates sampling.
[0031] When the coal flow begins to converge, the electric push rod 3 can be activated to extend. At this time, the electric push rod 3 can push the sampling plate 401 to unfold with the help of the control rod 402. The unfolded sampling plate 401 can then come into contact with the coal flow, and under the continuous transport of the coal flow, the coal is fed into the sampling plate 401. At this time, the electric push rod 3 can retract, thereby pulling the sampling plate 401 together with the sampling box 4 with the help of the control rod 402 to complete the closure. In this case, the sampling plate 401 can collect the coal sample into the sampling box 4 and flip it over to fall onto the guide block 403. At the same time, because the guide block 403 is set on the bottom surface of the sampling plate 401, and the middle of the upper surface of the guide block 403 is convex, the middle position of the guide block 403 is higher than the sides. In this case, the coal sample entering the sampling box 4 can roll towards the sides of the sampling box 4 and enter the drainage pipe 404, and then flow into the sample storage box 5 through the drainage pipe 404 to complete the sample storage.
[0032] Secondly, the collected coal flow can pass through the wide opening at the other end of the limiting plate 201 and be redistributed to continue the stable transportation of the coal flow.
[0033] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A coal flow sampling device for use in a coal flow conveyor line, comprising a conveyor line (1) and an assembly frame (2), characterized in that, The upper surface of the conveying line (1) is fixedly installed with an assembling frame (2) on both sides of the middle part, the lower part of the inner surface of the assembling frame (2) is fixedly provided with a limiting plate (201), the upper surface of the middle part of the assembling frame (2) is fixedly installed with a supporting seat (202), the rear end of the upper surface of the supporting seat (202) is fixedly installed with an electric push rod (3). The inner top surface of the assembling frame (2) is fixedly installed with a sampling box (4), the rear end of the lower surface of the sampling box (4) is hingedly installed with a sampling plate (401) in the shape of "L", the rear end of the inner bottom surface of the sampling plate (401) is movably installed with a control rod (402), the other end of the control rod (402) is fixedly connected with the output end of the electric push rod (3), the inner bottom surface of the sampling plate (401) is fixedly provided with a guide block (403), the upper surface of the middle part of the guide block (403) is protrudingly arranged.
2. The coal flow sampling apparatus for use in a coal flow conveying line according to claim 1, wherein The lower surface of the limiting plate (201) is in contact with the upper surface of the conveying line (1), the both ends of the limiting plate (201) are arranged in the shape of outward convex arc.
3. The coal flow sampling apparatus for use in a coal flow conveyor line according to claim 1, wherein, The connecting part of the control rod (402) and the sampling plate (401) is provided with a movable assembly, the movable assembly comprises a plurality of movable buckles which are hingedly connected with each other.
4. The coal flow sampling apparatus for use in a coal flow conveyor line of claim 1, wherein, The outer surface of the sampling box (4) is throughly communicated with a drainage pipe (404) on both sides of the lower part, the other end of the drainage pipe (404) is fixedly provided with a sealing plate (405).
5. The coal flow sampling apparatus for use in a coal flow conveyor line according to claim 4, wherein, The outer surface of the conveying line (1) is fixedly hung with a sample storage box (5) on both sides of the middle part, the upper surface of the side of the sample storage box (5) close to the outer surface of the conveying line (1) is fixedly provided with a hook (501), the hook (501) is hungly connected with the upper surface of the conveying line (1), the sealing plate (405) is inserted into the sample storage box (5), the outer surface of the sample storage box (5) is provided with layered lines.