Coal flow detection device

Abstract

The utility model discloses a coal flow detection device which comprises a conveying assembly used for conveying a coal sample, and a bottom color belt is arranged on the bearing face of a conveying belt in the conveying assembly; and the detection assembly is used for detecting the ground color tape to judge whether the coal flow exists or not and is mounted on the conveying assembly. When the coal samples are conveyed through rotation of the conveying belt, the coal samples stacked on the conveying belt cover and shield the identification color, at the moment, the detection assembly located above the conveying belt cannot detect the identification color on the conveying belt, and the color sensor does not output a signal; when no coal flow exists on the conveying belt, the identification color is exposed, the color sensor detects the identification color, and therefore the control system can judge the operation condition of the coal sample on the belt.

Description

Technical Field

[0001] The utility model relates to the technical field of coal sample conveying, in particular to a coal flow detection device. Background Art

[0002] In coal quality preparation equipment or other coal sample processing equipment, coal samples are conveyed by a belt. To achieve precise process control, the control system needs to know the running condition of the coal sample on the belt, that is, whether the coal sample is being transferred or the transfer of the coal sample is completed.

[0003] In the prior art, mechanical coal flow sensors need to contact the coal flow, which easily causes the mechanical structure to fail due to wear. Summary of the Invention

[0004] In view of the above problems, a coal flow detection device is provided, aiming to effectively avoid the problems existing in the use of the existing mechanical coal flow sensors.

[0005] The specific technical solution is as follows:

[0006] A coal flow detection device includes:

[0007] A conveying component for conveying coal samples, on the bearing surface of which a background color tape is provided; and

[0008] A detection component for detecting the background color tape to judge the presence or absence of coal flow, which is installed on the conveying component.

[0009] Furthermore, the coal flow detection device further includes a cleaning component for cleaning the detection component.

[0010] Furthermore, the conveying component is a belt conveyor, and the background color tape is installed on the bearing surface of the conveyor belt in the conveyor.

[0011] Furthermore, the background color tape is wound around the conveyor belt along the conveyor belt.

[0012] Furthermore, the background color tape is located on the center line of the bearing surface of the conveyor belt.

[0013] Furthermore, the detection component at least includes a color sensor, which is installed above the conveyor belt.

[0014] Furthermore, the color sensor is installed above the conveyor belt through a sensor bracket.

[0015] Furthermore, the cleaning component includes a jet head for purging and removing coal dust on the detection component, and the jet head is communicated with a gas source.

[0016] Furthermore, the jet head is installed on the sensor bracket.

[0017] The beneficial effects of the above solution are:

[0018] In the present utility model, when the coal sample is conveyed by the rotation of the conveyor belt, the coal sample accumulated on the conveyor belt covers and obscures the identification color. At this time, the detection component located above the conveyor belt cannot detect the identification color on the conveyor belt, and the color sensor does not output a signal; when there is no coal flow on the conveyor belt, the identification color is exposed, and the color sensor detects the identification color, whereby the control system can judge the operation condition of the coal sample on the belt. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the coal flow detection device provided in the embodiment of the present utility model.

[0020] In the drawings: 1, conveyor belt; 2, background color belt; 3, color sensor; 4, sensor support; 5, belt edge guard; 6, air jet head. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0023] Next, the present utility model will be further described in conjunction with specific embodiments, but it is not a limitation of the present utility model.

[0024] As Figure 1 shown, the coal flow detection device provided in the embodiment of the present utility model includes a conveying component and a detection component; the conveying component is used to convey the coal sample, and a background color belt 2 is provided on the bearing surface of the conveyor belt 1 in the conveying component; the detection component is used to detect the background color belt 2 to judge the presence / absence of coal flow and is installed on the conveying component.

[0025] In the present utility model, the background color belt 2 is arranged around the conveyor belt 1 on the conveyor belt 1, and the background color belt 2 is covered with an identification color, such as green. When the coal sample is conveyed by rotating the conveyor belt 1, the coal sample accumulated on the conveyor belt 1 covers and obscures the identification color. At this time, the detection component, such as the color sensor 3, installed above the conveyor belt 1 through the conveyor belt support 4 cannot detect the identification color on the conveyor belt 1, and the color sensor 3 does not output a signal; when there is no coal flow on the conveyor belt 1, the identification color is exposed, and the color sensor 3 detects the identification color and outputs a signal, whereby the control system can judge the operation condition of the coal sample on the belt.

[0026] Considering that most of the coal samples accumulate on the center line of the conveyor belt 1 during the coal flow transportation process, the background color belt 2 can be further optimized to be located on the center line of the bearing surface of the conveyor belt 1.

[0027] Based on the above technical solution, considering the problem that coal dust may fly and pollute the detection component during the coal sample transportation process, resulting in the detection component being unable to effectively identify the identification color on the conveyor belt 1, the coal flow detection device can further include a cleaning component to clean the detection component periodically or as needed in a timely manner; as a specific example, the cleaning component can include a jet head 6 installed on the conveyor belt bracket 4, and the jet head 6 is communicated with a high-pressure air source to turn on the high-pressure air source through a controller, so as to blow off the coal dust on the optical lens in the color sensor 3, avoiding the problem of reduced identification efficiency or even inability to identify due to excessive accumulation of coal dust.

[0028] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the content of the specification of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal flow detection device, characterized in that: include: A conveying assembly, used for conveying coal samples, wherein a base color belt is provided on a bearing surface of the conveying assembly; as well as A detection component is used to detect the bottom color belt to determine the presence or absence of coal flow and is installed on the conveying component.

2. The coal flow detection device according to claim 1, characterized in that: The coal flow detection device also includes a cleaning component for cleaning the detection component.

3. The coal flow detection device according to claim 2, characterized in that: The conveying assembly is a belt conveyor, and the base color belt is installed on the bearing surface of the conveyor belt in the conveyor.

4. The coal flow detection device according to claim 3, characterized in that: The bottom color belt is wound around the conveyor belt along the conveyor belt.

5. The coal flow detection device according to claim 4, characterized in that: The base color belt is located on the center line of the carrying surface of the conveyor belt.

6. The coal flow detection device according to claim 3, characterized in that: The detection component at least includes a color sensor installed above the conveyor belt.

7. The coal flow detection device according to claim 6, characterized in that: The color sensor is installed above the conveyor belt through a sensor bracket.

8. The coal flow detection device according to claim 7, characterized in that: The cleaning component comprises a jet nozzle for blowing away coal dust on the detection component, and the jet nozzle is connected to an air source.

9. The coal flow detection device according to claim 8, characterized in that: The jet head is mounted on the sensor bracket.

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