Coal quality sampling probe for thermal power plant

Abstract

The utility model relates to the technical field of coal quality sampling devices, in particular to a coal quality sampling probe for a thermal power plant, which comprises a sampling assembly, a sampling assembly and a control assembly, the sampling assembly comprises a sampling barrel, a storage cavity is arranged in the sampling barrel, a sampling port communicated with the storage cavity is arranged on the barrel wall of the sampling barrel, and a grip is mounted at the rear end of the sampling barrel; the switch assembly is inserted into the sampling barrel and is used for controlling the sampling opening; the crushing assembly is rotationally mounted at the front end of the sampling barrel and is used for breaking accumulated coal briquettes on an insertion path; the sampling barrel can be easily inserted into the deep position of a coal seam for sampling operation, the structure is simple, and the coal sampling efficiency can be improved; the switch assembly is arranged, so that an isolation effect can be achieved in the process that the sampling barrel is inserted into and pulled out of a coal seam, the coal quality of each layer in a coal pile can be accurately explored, coal at different depths can be conveniently sampled, and the overall quality of the coal can be better detected.

Description

Technical Field

[0001] This utility model relates to the technical field of coal quality sampling devices, specifically to a coal quality sampling probe for thermal power plants. Background Technology

[0002] In the energy supply system of thermal power plants, coal is the core fuel, and its quality parameters play a decisive role in boiler combustion efficiency, power generation cost control, and pollutant emission reduction. Accurate and efficient coal quality testing is a key link in ensuring the safe and stable operation of thermal power plants and achieving a balance between economic and environmental benefits. With the continuous growth of installed capacity of thermal power plants and the increasing diversification of coal procurement sources, coal quality testing technology faces new challenges such as increased sample complexity and improved testing timeliness, which places higher demands on the performance of sampling equipment.

[0003] In traditional coal quality testing processes at thermal power plants, the quality of sampling directly affects the reliability of subsequent analysis results. Currently, the common method for sampling is to insert a sampling tube into the coal seam. However, coal materials often contain large-sized gravel particles. These hard impurities not only hinder the sampling tube from penetrating the coal seam but also cause the sampling tube to frequently jam. Operators need to expend a lot of physical effort to repeat the operation, which greatly prolongs the sampling time. At the same time, forcibly inserting the sampling tube may cause equipment wear, reduce the service life of the sampling probe, and increase maintenance costs.

[0004] In summary, due to the limited sampling depth, the obtained samples are difficult to represent the overall quality of coal, which leads to deviations in the test results. These problems seriously restrict the efficiency and accuracy of coal quality testing in thermal power plants. In view of this, we propose a coal quality sampling probe for thermal power plants. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned in the background section and provide a coal quality sampling probe for thermal power plants.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A coal quality sampling probe for thermal power plants, comprising:

[0008] The sampling assembly includes a sampling cylinder with an internal storage chamber, a sampling port communicating with the storage chamber is provided on the cylinder wall, and a handle is installed at the rear end of the sampling cylinder;

[0009] A switch assembly, inserted into the sampling cylinder, is used to control the sampling port;

[0010] The crushing component is rotatably mounted at the front end of the sampling cylinder and is used to break up the accumulated coal blocks in the insertion path.

[0011] Preferably, the sampling cylinder has a groove at the sampling port, and the switch assembly includes a movable plate inserted in the groove, and the movable plate has an inlet corresponding to the storage chamber;

[0012] A handle is installed on the outer side of the rear end of the movable plate, and the inner side of the rear end of the movable plate is installed at the rear end of the sampling cylinder via a reset spring.

[0013] Preferably, the crushing component includes a cone with crushing teeth on its surface, and a rotating rod is installed at the center of the cone shaft, the rotating rod being rotatably installed inside the sampling cylinder.

[0014] Preferably, a turntable is fixedly connected to the other end of the rotating rod, and the turntable is provided with an eccentrically set rotating handle.

[0015] Preferably, the sampling cylinder has an annular groove at its front end, and the bottom surface of the cone head has a sliding ring for rotating and being installed in the annular groove.

[0016] Preferably, the sampling tube is provided with scale lines for reading the insertion depth.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This coal quality sampling probe for thermal power plants allows the sampling tube to be easily inserted into the depth of the coal seam for sampling operations. Its simple structure is conducive to improving the efficiency of coal sampling.

[0019] 2. Equipped with a switch assembly, it can isolate the sampling tube during the insertion and extraction of the coal seam, accurately detect the coal quality of each layer in the coal pile, facilitate sampling operations at different depths of coal, and help to better detect the overall quality of coal. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the sampling cylinder of this utility model;

[0024] Figure 4 This is a schematic diagram of the switch assembly structure of this utility model;

[0025] Figure 5This is a schematic diagram of the crushing component structure of this utility model.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Sampling assembly; 11. Sampling cylinder; 12. Sampling port; 13. Slide groove; 14. Storage chamber; 15. Handle; 16. Anti-slip strip; 17. Ring groove; 18. Scale line; 2. Switch assembly; 21. Moving plate; 22. Feed port; 23. Handle; 24. Return spring; 3. Crushing assembly; 31. Cone; 32. Crushing teeth; 33. Rotating rod; 34. Turntable; 35. Rotating handle; 36. Slip ring. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Please see Figures 1-5 The present invention will describe the above technical solution in detail through the following embodiments:

[0030] Example 1:

[0031] The coal quality sampling probe for thermal power plants in this embodiment includes a sampling component 1 and a switching component 2 assembled inside the sampling component 1. A crushing component 3 is rotatably installed at the front end of the sampling component 1.

[0032] Specifically, in this embodiment, the sampling component 1 includes as follows: Figures 1-3 The sampling cylinder 11 shown has three storage chambers 14 inside, and a sampling port 12 is provided at the top of each sampling cylinder 11. The sampling port 12 and the storage chamber 14 are interconnected, and the purpose is to explore the coal quality at the upper, middle and lower levels.

[0033] A handle 15 is fixedly installed at the bottom of the sampling cylinder 11. Anti-slip strips 16 are evenly distributed on the surface of the handle 15. The handle 15 makes it easy to hold and use, and facilitates the operation of pushing the sampling cylinder 11 into the coal seam. The anti-slip strips 16 can increase the friction between the handle 15 and the hand, and prevent slippage.

[0034] To prevent the storage chamber 14 at the front end from entering the coal body prematurely during the insertion process, a groove 13 is provided inside the sampling cylinder 11 for the sliding plate 21 of the switch assembly 2 to be inserted. The front end of the sampling cylinder 11 is engraved with scale lines 18. After being inserted to a predetermined depth, the sliding plate 21 can be moved so that the feed port 22 is aligned with the sampling port 12 to complete the material extraction.

[0035] That is, in this embodiment, when the sampling tube 11 is inserted into the specified depth of the coal seam, the moving plate 21 can be manually pulled outward to make the feed inlet 22 correspond and connect with the storage chamber 14, so that the coal particles in the coal seam can enter the storage chamber 14 at the same time for collection, which can facilitate the sampling operation of coal at different depths and bring more convenience to the coal sampling operation. Conversely, when the moving plate 21 is moved inward to reset, the feed inlet 22, the sampling port 12 and the storage chamber 14 are misaligned, which can prevent coal particles from entering the storage chamber 14 and avoid the situation that coal particles leak out during the carrying process after sampling.

[0036] To improve the ease of insertion, the crushing component 3 in this embodiment includes a cone 31 rotatably mounted on one side of the sampling cylinder 11. The surface of the cone 31 is fixedly mounted with crushing teeth 32 arranged in a ring array, and a rotating rod 33 that penetrates the sampling cylinder 11 is fixedly mounted on the inner side of the cone 31.

[0037] As can be seen from the above, by carrying this device to the coal pile location during use, inserting the cone 31 into the coal seam, and rotating it by operating the rotating rod 33, the rotating rod 33 can be driven by the drive motor to synchronously drive the cone 31 to rotate. The crushing teeth 32 can crush large coal and stone particles in the forward direction, so that the sampling cylinder 11 can be inserted into the depth of the coal seam with relatively little effort. The structure is simple and the operation is time-saving and labor-saving.

[0038] Example 2:

[0039] refer to Figure 1 and Figure 4 As shown, a handle 23 is fixedly installed on the top of the movable plate 21, and a return spring 24 is locked between the bottom of the movable plate 21 and the sampling cylinder 11. By using the handle 23, the movable plate 21 can be easily pulled outward, which can easily align the inlet 22 with the storage chamber 14 and the sampling port 12. By releasing the handle 23, the pulling force generated by the return spring 24 can be used to pull the movable plate 21 inward to reset, which can automatically misalign the inlet 22 with the storage chamber 14 and the sampling port 12, making it convenient to close the storage chamber 14.

[0040] refer to Figure 2 , Figure 3 and Figure 5As shown, the cone head 31 is rotatably mounted to the sampling cylinder 11 via a slip ring 36, and the outer periphery of the sampling cylinder 11 is provided with an annular groove 17 for the slip ring 36 to rotate.

[0041] As can be seen from the above, by limiting the sliding ring 36 through the ring groove 17, the sliding ring 36 can rotate along the ring groove 17, which can prevent the cone head 31 from falling off during the rotation process, and at the same time prevent the cone head 31 from shaking when rotating.

[0042] refer to Figure 5 As shown, in this embodiment, a turntable 34 is fixedly installed at the rear end of the rotating rod 33, and a handle 35 is rotatably installed on one side of the turntable 34. By holding the handle 35, the turntable 34 can be easily rotated, which can simultaneously drive the rotating rod 33 to rotate, and the cone head 31 can be operated to rotate. This facilitates the crushing operation of large coal particles using the crushing teeth 32, and allows the sampling cylinder 11 to be inserted into the coal seam for sampling. This embodiment has a low cost.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model.

Claims

1. A coal quality sampling probe for thermal power plants, characterized in that: include: The sampling assembly (1) includes a sampling cylinder (11) with a storage chamber (14) inside, a sampling port (12) communicating with the storage chamber (14) is provided on the cylinder wall of the sampling cylinder (11), and a handle (15) is installed at the rear end of the sampling cylinder (11). A switch assembly (2) is inserted into the sampling tube (11) and is used to control the sampling port (12); The crushing component (3) is rotatably installed at the front end of the sampling cylinder (11) to break up the accumulated coal blocks on the insertion path.

2. The coal quality sampling probe for thermal power plants as described in claim 1, characterized in that: The sampling tube (11) is provided with a groove (13) at the sampling port (12). The switch assembly (2) includes a movable plate (21) inserted in the groove (13). The movable plate (21) is provided with an inlet (22) corresponding to the storage chamber (14). A handle (23) is installed on the outer side of the rear end of the moving plate (21), and the inner side of the rear end of the moving plate (21) is installed at the rear end of the sampling cylinder (11) by a return spring (24).

3. The coal quality sampling probe for thermal power plants as described in claim 1, characterized in that: The crushing component (3) includes a cone (31) with crushing teeth (32) on its surface. A rotating rod (33) is installed at the center of the cone (31) and is rotatably installed inside the sampling cylinder (11).

4. The coal quality sampling probe for thermal power plants as described in claim 3, characterized in that: The other end of the rotating rod (33) is fixedly connected to a turntable (34), and the turntable (34) is provided with an eccentrically set handle (35).

5. The coal quality sampling probe for thermal power plants as described in claim 4, characterized in that: The sampling tube (11) has an annular groove (17) at its front end, and the cone (31) has a sliding ring (36) at its bottom surface for rotating within the annular groove (17).

6. The coal quality sampling probe for thermal power plants as described in claim 1, characterized in that: The sampling tube (11) is provided with a scale line (18) for reading the insertion depth.

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