Pulverized coal concentration detection device for coal conveying gallery

By installing collection, filtration, and cleaning components in the coal conveying corridor, the problem of decreased detection accuracy caused by coal dust accumulation has been solved, enabling accurate measurement and safe detection of coal dust concentration within the coal conveying corridor.

CN224189823UActive Publication Date: 2026-05-01HUADIAN POWER INTERNATIONAL CORPORATION LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUADIAN POWER INTERNATIONAL CORPORATION LTD
Filing Date
2025-04-11
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

During coal conveying, the coal dust generated by coal vibration causes soot to accumulate on the conveyor table, affecting detection accuracy and safety. Existing technologies are unable to effectively clean the dust from the surface of the test pieces.

Method used

A coal dust concentration detection device for a coal conveying corridor was designed, comprising a collection component, a filter element, and a cleaning component. Dust is extracted by a fan and filtered by the filter element. The cleaning component includes a drive cylinder and a cleaning head, and a cleaning brush cleans the detection component.

Benefits of technology

This effectively prevents dust accumulation on the surface of the test piece, ensuring the accuracy and safety of coal powder concentration detection and reducing the failure rate of the conveyor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coal conveying gallery pulverized coal concentration detection device, and relates to the technical field of coal conveying, the coal conveying gallery pulverized coal concentration detection device comprises a coal conveying gallery body, a collecting assembly, a filtering piece and a cleaning assembly, the collecting assembly comprises a collecting shell, a detection piece and a fan, a collection cavity with an air outlet is formed in the collection shell, and the detection piece is installed in the collection cavity; the filtering part is detachably mounted on the peripheral wall of the collecting shell and communicates with the air outlet; the cleaning assembly is mounted in the collecting cavity, is arranged on one side of the detection piece and is used for cleaning the detection piece; according to the technical scheme provided by the utility model, the cleaning assembly is arranged to clean the detection piece, so that the situation that excessive dust is accumulated on the surface of the detection piece to influence a detection result is effectively avoided, and the detection piece can accurately measure the concentration of pulverized coal in the coal conveying gallery.
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Description

Coal powder concentration detection device for coal conveying corridor Technical Field

[0001] This utility model relates to the field of coal transportation technology, and in particular to a coal powder concentration detection device for coal conveying corridors. Background Technology

[0002] When power plants transport coal in the corridor, the vibration of the conveyor belt causes large pieces of coal to break up, producing small coal dust particles. This makes the coal dust easily generated during transportation. Excessive dust can cause coal dust particles to adhere to the parts of the conveyor belt, thereby increasing the failure rate of the conveyor belt. During use, it is necessary to monitor the concentration of coal dust inside the conveyor belt to prevent excessive concentration from affecting not only the safety of use but also human health. Summary of the Invention

[0003] The main purpose of this invention is to provide a coal dust concentration detection device for coal conveying corridors. By setting up a cleaning component to clean the detection element, it effectively avoids excessive dust accumulation on the surface of the detection element, which would affect the detection results, thereby ensuring that the detection element can accurately measure the coal dust concentration in the coal conveying corridor.

[0004] To achieve the above objectives, the coal powder concentration detection device for coal conveying corridors proposed in this utility model includes:

[0005] The main body of the coal conveying corridor;

[0006] The collection assembly includes a collection housing, a detection element, and a fan. The fan is installed on one side of the coal conveying corridor body and connected to the coal conveying corridor body. The side of the fan away from the coal conveying corridor is connected to the collection housing. A collection cavity with an air outlet is formed inside the collection housing. The detection element is installed inside the collection cavity.

[0007] A filter element, which is detachably installed on the outer peripheral wall of the collection housing and connected to the air outlet;

[0008] A cleaning component is installed inside the collection chamber and located on one side of the detection element for cleaning the detection element.

[0009] In one embodiment, the filter element is a filter bag.

[0010] In one embodiment, the cleaning assembly includes a mounting base, a drive cylinder, and a cleaning head. One side of the mounting base is installed in the collection chamber, and the drive cylinder is installed on the other side of the mounting base. The drive cylinder is driven and connected to the cleaning head to drive the cleaning head toward or away from the detection element.

[0011] In one embodiment, the cleaning head includes a mounting housing and a cleaning brush, the drive cylinder is driven and connected to the mounting housing, the mounting housing forms a cleaning cavity with an opening, and the cleaning brush is disposed in the cleaning cavity.

[0012] In one embodiment, the cleaning head further includes a driving member disposed within the cleaning chamber and driven to be connected to the cleaning brush.

[0013] In one embodiment, the driving component includes a drive motor and a rotating shaft. The drive motor is driven and connected to one side of the rotating shaft, and the other side of the rotating shaft is rotatably connected to the inner wall of the cleaning chamber. The cleaning brush is disposed on the rotating shaft.

[0014] In one embodiment, a plurality of cleaning brushes are provided, and the plurality of cleaning brushes are spaced apart within the cleaning chamber;

[0015] The driving components are provided in multiple ways, and the multiple driving components are spaced apart in the cleaning chamber. Each driving component is driven and connected to each cleaning brush.

[0016] In one embodiment, the collection assembly further includes two mounting brackets, one side of each mounting bracket being disposed on one side of the collection housing, and the other side of each mounting bracket being disposed on the coal conveying corridor body.

[0017] The technical solution of this utility model uses a cleaning component to clean the test piece, which effectively avoids excessive dust accumulation on the surface of the test piece, thus affecting the test results and ensuring that the test piece can accurately measure the coal powder concentration in the coal conveying corridor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of an embodiment of the coal powder concentration detection device for coal conveying corridor provided by this utility model.

[0020] Figure 2 is a schematic diagram of the cleaning component of an embodiment of the coal powder concentration detection device for coal conveying corridor provided by this utility model.

[0021] Figure 3 is a schematic diagram of the cleaning head of an embodiment of the coal powder concentration detection device for coal conveying corridor provided by this utility model.

[0022] Figure 4 is a partial structural diagram of the cleaning head of an embodiment of the coal powder concentration detection device for coal conveying corridor provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 10. Coal powder concentration detection device for coal conveying corridor; 1. Coal conveying corridor body; 2. Collection component; 21. Collection shell; 22. Detection component; 23. Fan; 3. Filter component; 4. Cleaning component; 41. Mounting base; 42. Drive cylinder; 43. Cleaning head; 431. Mounting shell; 4311. Cleaning chamber; 4312. Opening; 432. Cleaning brush; 433. Drive component; 4331. Drive motor; 4332. Rotating shaft; 5. Mounting frame.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] 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.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model proposes a coal dust concentration detection device for coal conveying corridors. The device aims to clean the detection component by setting up a cleaning component, which effectively avoids excessive dust accumulation on the surface of the detection component, thus affecting the detection results and ensuring that the detection component can accurately measure the coal dust concentration in the coal conveying corridor.

[0030] Please refer to Figures 1 to 4. In one embodiment of this utility model, the coal powder concentration detection device 10 for the coal conveying corridor includes:

[0031] Coal conveying corridor body 1;

[0032] The collection component 2 includes a collection housing 21, a detection element 22, and a fan 23. The fan 23 is installed on one side of the coal conveying corridor body 1 and is connected to the coal conveying corridor body 1. The side of the fan 23 away from the coal conveying corridor is connected to the collection housing 21. A collection cavity with an air outlet is formed inside the collection housing 21. The detection element 22 is installed inside the collection cavity.

[0033] Filter element 3, which is detachably installed on the outer peripheral wall of the collection housing 21 and connected to the air outlet;

[0034] A cleaning component 4 is installed inside the collection chamber and located on one side of the detection element 22 for cleaning the detection element 22.

[0035] In this embodiment, the coal dust concentration detection device 10 for the coal conveying corridor includes a coal conveying corridor body 1 and a collection component 2. The collection component 2 is installed on one side of the coal conveying corridor body 1 and is connected to the coal conveying corridor body 1. Specifically, the collection component 2 includes a collection housing 21, a detection element 22, and a fan 23. The fan 23 is installed on one side of the coal conveying corridor body 1 and is connected to the coal conveying corridor body 1. The side of the fan 23 away from the coal conveying corridor is connected to the collection housing 21. A collection chamber with an air outlet is formed inside the collection housing 21. The detection element 22 is installed inside the collection chamber. That is, the fan 23 draws dust from the coal conveying corridor body 1 into the collection housing 21, so that the detection element 22 can detect the dust entering the collection housing 21. It should be noted that the detection element 22 is a coal dust concentration sensor. As is known, coal dust concentration sensors are existing technology, and this application does not limit them in any way. Similarly, the fan 23 is also existing technology, and this application does not limit it in any way.

[0036] Specifically, to prevent dust from entering the collection housing 21 and polluting the external environment, the coal dust concentration detection device 10 for the coal conveying corridor also includes a filter element 3. The filter element 3 is detachably installed on the outer peripheral wall of the collection housing 21 and connected to the air outlet. That is, after the air drawn by the fan 23 enters the collection housing 21, it will be discharged to the outside through the filter element 3, while dust and other debris will remain inside the collection housing 21. At the same time, the filter element 3 is detachably installed on the outer peripheral wall of the collection housing 21, meaning that the staff can remove the filter element 3 at any time for cleaning the collection housing 21. The operation is simple and practical. It should be noted that the filter element 3 can be detachably installed on the outer peripheral wall of the collection housing 21 by means of threaded connection, or it can be installed on the outer peripheral wall of the collection housing 21 by other detachable installation methods. This application does not impose any limitations on this.

[0037] Furthermore, to ensure the accuracy of the detection results of the detection element 22, the coal dust concentration detection device 10 in the coal conveying corridor also includes a cleaning component 4. The cleaning component 4 is installed in the collection chamber and located on one side of the detection element 22 for cleaning the detection element 22. That is, when it is not necessary to detect the coal dust concentration, the cleaning component 4 is used to clean the detection element 22 to effectively avoid excessive dust accumulation on the detection element 22, thereby ensuring that the detection element 22 can accurately measure the coal dust concentration in the coal conveying corridor.

[0038] It should be noted that the coal conveying corridor body 1 is existing technology, and this application does not impose any limitations on it.

[0039] In one embodiment, please refer to Figure 1. The filter element 3 is a filter bag. The filter bag can effectively prevent coal powder from leaking into the air during coal powder concentration detection, thereby reducing the environmental impact of coal powder concentration detection. The filter bag also has good air permeability, which can filter dust and effectively filter the gas, ensuring the stability of the airflow during coal powder concentration detection and allowing the airflow to escape stably and efficiently. At the same time, the filter bag can be disassembled and cleaned.

[0040] In one embodiment, referring to Figures 2 to 4, the cleaning assembly 4 includes a mounting base 41, a drive cylinder 42, and a cleaning head 43. One side of the mounting base 41 is installed in the collection chamber, and the drive cylinder 42 is installed on the other side of the mounting base 41. The drive cylinder 42 is driven and connected to the cleaning head 43 to drive the cleaning head 43 toward or away from the detection element 22.

[0041] In this embodiment, the cleaning component 4 includes a mounting base 41, a driving cylinder 42, and a cleaning head 43. One side of the mounting base 41 is installed in the collection chamber. It should be noted that the mounting base 41 can be installed in the collection chamber by welding or bonding. The driving cylinder 42 is installed on the other side of the mounting base 41, thereby ensuring that the driving cylinder 42 is stably installed in the collection chamber and ensuring the normal operation of the driving cylinder 42. At the same time, the driving cylinder 42 is driven and connected to the cleaning head 43. Under the drive of the driving cylinder 42, the cleaning head 43 can move closer to or away from the detection element 22. When it moves closer, it can clean the detection element 22. When it moves away, it is convenient for the detection element 22 to detect the concentration of coal powder without affecting the normal operation of the detection element 22.

[0042] In one embodiment, referring to Figures 2 to 4, the cleaning head 43 includes a mounting housing 431 and a cleaning brush 432. The driving cylinder 42 is driven and connected to the mounting housing 431. The mounting housing 431 forms a cleaning cavity 4311 with an opening 4312. The cleaning brush 432 is disposed in the cleaning cavity 4311.

[0043] In this embodiment, the cleaning head 43 includes a mounting housing 431 and a cleaning brush 432. The mounting housing 431 forms a cleaning cavity 4311 with an opening 4312, and the cleaning brush 432 is disposed in the cleaning cavity 4311. Therefore, when the cleaning head 43 moves toward the detection element 22 under the drive of the driving cylinder 42, the detection element 22 is inserted into the cleaning cavity 4311 on the side away from the collection cavity, so that the cleaning brush 432 can clean the detection element 22. After cleaning, the cleaning head 43 is removed from the detection element 22 under the drive of the driving cylinder 42.

[0044] In one embodiment, referring to Figures 3 and 4, the cleaning head 43 further includes a drive member 433, which is disposed in the cleaning chamber 4311 and is driven to be connected to the cleaning brush 432. By providing the drive member 433, the drive member 433 drives the cleaning brush 432 to rotate. While rotating, the cleaning brush 432 brushes the detection element 22, thereby completely removing the dust on the detection element 22.

[0045] In one embodiment, referring to Figure 4, the driving component 433 includes a driving motor 4331 and a rotating shaft 4332. The driving motor 4331 is driven and connected to one side of the rotating shaft 4332, and the other side of the rotating shaft 4332 is rotatably connected to the inner wall of the cleaning chamber 4311. The cleaning brush 432 is disposed on the rotating shaft 4332. The driving motor 4331 drives the rotating shaft 4332, and the rotating shaft 4332 rotates while simultaneously driving the cleaning brush 432 to rotate, thereby completely removing the dust on the detection component 22.

[0046] In one embodiment, please refer to Figures 3 and 4. A plurality of cleaning brushes 432 are provided, and the plurality of cleaning brushes 432 are spaced apart within the cleaning cavity 4311.

[0047] Multiple drive components 433 are provided, and the multiple drive components 433 are spaced apart in the cleaning chamber 4311. Each drive component 433 is driven to connect to each cleaning brush 432. By providing multiple cleaning brushes 432, the dust on the detection component 22 can be quickly removed.

[0048] In this embodiment, multiple cleaning brushes 432 are provided, and the multiple cleaning brushes 432 are spaced apart in the cleaning cavity 4311. Similarly, multiple driving members 433 are also provided, and the multiple driving members 433 are spaced apart in the cleaning cavity 4311. Each driving member 433 is driven and connected to each cleaning brush 432, so that each cleaning brush 432 rotates under the drive of the driving member 433, and sweeps away the dust on the detection member 22 during the rotation.

[0049] In one embodiment, referring to Figure 1, the collection assembly 2 further includes two mounting brackets 5. One side of each mounting bracket 5 is disposed on one side of the collection housing 21, and the other side of each mounting bracket 5 is disposed on the coal conveying corridor body 1. By setting the mounting brackets 5, the collection housing 21 can be stably installed on the coal conveying corridor body 1.

[0050] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A coal powder concentration detection device for a coal conveying corridor, characterized in that, The coal powder concentration detection device for the coal conveying corridor includes: a coal conveying corridor body; a collection assembly, which includes a collection shell, a detection element, and a fan, wherein the fan is installed on one side of the coal conveying corridor body and connected to the coal conveying corridor body, and the side of the fan away from the coal conveying corridor is connected to the collection shell, wherein a collection cavity with an air outlet is formed inside the collection shell, and the detection element is installed inside the collection cavity; a filter element, which is detachably installed on the outer peripheral wall of the collection shell and connected to the air outlet; and a cleaning assembly, which is installed inside the collection cavity and located on one side of the detection element for cleaning the detection element.

2. The coal powder concentration detection device for coal conveying corridors as described in claim 1, characterized in that, The filter element is a filter bag.

3. The coal powder concentration detection device for coal conveying corridors as described in claim 1, characterized in that, The cleaning assembly includes a mounting base, a drive cylinder, and a cleaning head. One side of the mounting base is installed in the collection chamber, and the drive cylinder is installed on the other side of the mounting base. The drive cylinder is driven and connected to the cleaning head to drive the cleaning head toward or away from the detection element.

4. The coal powder concentration detection device for coal conveying corridors as described in claim 3, characterized in that, The cleaning head includes a mounting housing and a cleaning brush. The driving cylinder is driven and connected to the mounting housing. The mounting housing forms a cleaning cavity with an opening, and the cleaning brush is disposed in the cleaning cavity.

5. The coal powder concentration detection device for coal conveying corridors as described in claim 4, characterized in that, The cleaning head also includes a drive unit, which is disposed inside the cleaning chamber and is connected to the cleaning brush.

6. The coal powder concentration detection device for coal conveying corridors as described in claim 5, characterized in that, The driving component includes a drive motor and a rotating shaft. The drive motor is driven and connected to one side of the rotating shaft, and the other side of the rotating shaft is rotatably connected to the inner wall of the cleaning chamber. The cleaning brush is disposed on the rotating shaft.

7. The coal powder concentration detection device for coal conveying corridors as described in claim 6, characterized in that, The cleaning brush is provided in multiple locations, and the multiple cleaning brushes are spaced apart within the cleaning chamber; the driving member is provided in multiple locations, and the multiple driving members are spaced apart within the cleaning chamber, and each driving member is driven and connected to each cleaning brush.

8. The coal powder concentration detection device for coal conveying corridors as described in claim 1, characterized in that, The collection assembly also includes two mounting brackets, one side of which is respectively located on one side of the collection housing, and the other side of which is respectively located on the coal conveying corridor body.