Anti-blocking device for coal dropping pipe of coal conveying system

Abstract

The utility model discloses an anti-blocking device for a coal dropping pipe of a coal conveying system, and relates to the technical field of coal conveying systems. The coal drop pipe anti-blocking device of the coal conveying system comprises an upstream conveying belt, a downstream conveying belt and a coal drop pipe body arranged between the upstream conveying belt and the downstream conveying belt, a first visual flow meter is arranged above the upstream conveying belt, and a second visual flow meter is arranged above the downstream conveying belt. The first visual flow meter and the second visual flow meter are both connected with a server body. According to the anti-blocking device for the coal drop pipe of the coal conveying system, the first visual flow meter detects large foreign matters in real time, calculates accumulated coal flow and gives an alarm when the accumulated coal flow is larger than a set threshold value, and the server body also calculates the difference value of the accumulated coal flow of the first visual flow meter and the second visual flow meter and gives an alarm when the difference value is larger than the set value, so that the blocking condition of the coal drop pipe body is reduced; and when the coal drop pipe main body is possibly blocked, an alarm can be given and reminded in time.

Description

Technical Field

[0001] The utility model relates to the technical field of coal conveying systems, in particular to a device for preventing a coal drop pipe from being blocked in a coal conveying system. Background Art

[0002] The coal pipe of the coal transportation system is a general term for coal transportation pipelines in industries such as coal, ports, thermal power, coal dump stations, coal washing plants, and coal-fired industrial boilers. Its main function is to avoid excessive dust during the falling process of coal flow, and at the same time play a role in diversion or diversion.

[0003] Usually, conveyor belts are arranged at the upper and lower ends of the coal drop pipe, and the conveyor belts are used to transport coal. During the transportation process, the upstream conveyor belt may produce excessively large foreign matter, which may cause the inside of the coal drop pipe to be blocked, thereby causing pipe blockage. Alternatively, during normal transportation, the inside of the coal drop pipe may also be blocked, and it is not easy to detect the blockage in time. As the amount of accumulation increases, subsequent maintenance becomes difficult. In view of the shortcomings of the prior art, the utility model provides a coal drop pipe anti-blocking device for a coal conveying system to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for preventing blockage of a coal drop pipe in a coal conveying system. Through the design of a first visual flow meter, a second visual flow meter and a server body, coal flow is detected in real time on the upstream transmission belt and the downstream transmission belt. The first visual flow meter detects large foreign objects in real time and alarms upon detection. It also calculates the accumulated coal flow and alarms when it is greater than a set threshold. The server body also calculates the difference in accumulated coal flow between the first visual flow meter and the second visual flow meter and alarms when it is greater than a set value. This reduces blockage of the coal drop pipe body and ensures that an alarm can be sounded in time when blockage of the coal drop pipe body may occur, making maintenance of the coal drop pipe body convenient.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a coal delivery system coal drop pipe anti-blocking device, comprising an upstream transmission belt, a downstream transmission belt and a coal drop pipe body arranged between the upstream transmission belt and the downstream transmission belt, a first visual flow meter is arranged above the upstream transmission belt, and a second visual flow meter is arranged above the downstream transmission belt;

[0006] The first visual flow meter and the second visual flow meter are both connected to a server body.

[0007] Preferably, a first mounting frame is fixedly connected to the first visual flow meter, an upstream transmission device is fixedly connected to the first mounting frame, and the upstream transmission belt is arranged on the upstream transmission device.

[0008] Preferably, a second mounting frame is fixedly connected to the second visual flow meter, a downstream transmission device is fixedly connected to the second mounting frame, and the downstream transmission belt is arranged on the downstream transmission device.

[0009] Preferably, a first cable is connected between the server body and the first visual flow meter, and a second cable is connected between the server body and the second visual flow meter.

[0010] Preferably, the first mounting frame is used to provide support for the first cable, and the second mounting frame is used to provide support for the second cable.

[0011] Preferably, the first visual flow meter and the second visual flow meter are both composed of two groups of visual detection cameras, which constitute the binocular machine vision principle, collect three-dimensional point cloud data of coal at the belt detection position in real time, and calculate the instantaneous coal volume and cumulative coal volume.

[0012] Preferably, the first visual flow meter and the second visual flow meter send the collected data to the server body in real time, and the difference in coal flow is calculated by the server body.

[0013] Preferably, a difference threshold is set on the server body, and when the difference in data flow collected by the first visual flow meter and the second visual flow meter is greater than the set difference threshold, the server body issues an alarm.

[0014] Preferably, the first visual flow meter collects three-dimensional point cloud data, and detects large foreign objects in real time through three-dimensional analysis. If large foreign objects are detected, the data are transmitted to the server body and an alarm is issued.

[0015] Preferably, the first visual flowmeter and the second visual flowmeter are installed directly above the upstream transmission belt and the downstream transmission belt, respectively, so that the laser lines of the first visual flowmeter and the second visual flowmeter are irradiated directly above the upstream transmission belt and the downstream transmission belt, respectively.

[0016] The utility model discloses a device for preventing blocking of a coal drop pipe of a coal conveying system, which has the following beneficial effects:

[0017] The device for preventing the coal pipe from being blocked in the coal conveying system detects the coal flow on the upstream transmission belt and the downstream transmission belt in real time through the design of the first visual flow meter, the second visual flow meter and the server body. The first visual flow meter detects large foreign objects in real time and alarms upon detection. It also calculates the accumulated coal flow and alarms when it is greater than a set threshold. The server body also calculates the difference between the accumulated coal flow of the first visual flow meter and the second visual flow meter and alarms when it is greater than a set value, thereby reducing blockage of the coal pipe body and ensuring that an alarm can be sounded in time when blockage of the coal pipe body may occur, making it easy to maintain the coal pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] In the figure: 1. upstream transmission device; 101. upstream transmission belt; 2. coal drop pipe body; 3. downstream transmission device; 301. downstream transmission belt; 4. first mounting frame; 401. first visual flow meter; 5. second mounting frame; 501. second visual flow meter; 6. server body; 601. first cable; 602. second cable. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The embodiment of the present application provides a device for preventing the coal drop pipe of a coal conveying system from being blocked, thereby solving the problem in the prior art that the coal drop pipe may be blocked due to excessively large foreign matter generated by an upstream conveyor belt, thereby causing pipe blockage, or that the inside of the coal drop pipe may be blocked during normal transportation, and that blockage is not easy to detect in time, causing difficulty in subsequent maintenance as the amount of accumulation increases.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The utility model embodiment discloses a device for preventing the coal pipe from blocking in a coal conveying system. Figure 1 As shown, it includes an upstream transmission belt 101, a downstream transmission belt 301, and a coal drop pipe body 2 arranged between the upstream transmission belt 101 and the downstream transmission belt 301, a first visual flow meter 401 is arranged above the upstream transmission belt 101, and a second visual flow meter 501 is arranged above the downstream transmission belt 301;

[0025] The first visual flow meter 401 and the second visual flow meter 501 are both connected to the server body 6 .

[0026] Furthermore, the first visual flowmeter 401 is fixedly connected to a first mounting frame 4, the first mounting frame 4 is fixedly connected to an upstream transmission device 1, the upstream transmission belt 101 is arranged on the upstream transmission device 1, the second visual flowmeter 501 is fixedly connected to a second mounting frame 5, the second mounting frame 5 is fixedly connected to a downstream transmission device 3, the downstream transmission belt 301 is arranged on the downstream transmission device 3, and the first mounting frame 4 and the second mounting frame 5 are conveniently installed to limit the first visual flowmeter 401 and the second visual flowmeter 501, so that the first visual flowmeter 401 and the second visual flowmeter 501 can operate stably.

[0027] Furthermore, a first cable 601 is connected between the server body 6 and the first visual flow meter 401, and a second cable 602 is connected between the server body 6 and the second visual flow meter 501. The first cable 601 and the second cable 602 are set so that the first visual flow meter 401 and the second visual flow meter 501 are connected to the server body 6.

[0028] Specifically, the first mounting frame 4 is used to provide support for the first cable 601 , and the second mounting frame 5 is used to provide support for the second cable 602 . The first cable 601 and the second cable 602 are supported by the first mounting frame 4 and the second mounting frame 5 , and have good stability.

[0029] It is particularly disclosed that the first visual flow meter 401 and the second visual flow meter 501 are both composed of two sets of visual detection cameras, which constitute the binocular machine vision principle, collect the three-dimensional point cloud data of the coal at the belt detection position in real time, and calculate the instantaneous coal volume and the cumulative coal volume;

[0030] Furthermore, the first visual flow meter 401 and the second visual flow meter 501 send the collected data to the server body 6 in real time, and the difference in coal flow is calculated by the server body 6. A difference threshold is set on the server body 6. When the difference in data flow collected by the first visual flow meter 401 and the second visual flow meter 501 is greater than the set difference threshold, the server body 6 issues an alarm. The first visual flow meter 401 collects three-dimensional point cloud data and detects large foreign objects in real time through three-dimensional analysis. If large foreign objects are detected, they are transmitted to the server body 6 and an alarm is issued.

[0031] It should be noted that the first visual flow meter 401 and the second visual flow meter 501 are respectively installed directly above the upstream transmission belt 101 and the downstream transmission belt 301, so that the laser lines of the first visual flow meter 401 and the second visual flow meter 501 are respectively irradiated directly above the upstream transmission belt 101 and the downstream transmission belt 301, thereby ensuring accurate detection of coal flow data.

[0032] The anti-blocking device for the coal pipe of the coal conveying system is equipped with flow meters at the upstream and downstream of the coal pipe body 2 of the coal conveying belt. The flow meters adopt the principle of binocular machine vision to collect three-dimensional point cloud data of the belt coal in real time, calculate the instantaneous coal volume and the cumulative coal volume. The data of the two sets of flow meters are collected and transmitted to the back-end server body 6 for calculation. The first visual flow meter 401 of the upstream transmission belt 101 calculates the real-time coal volume of the coal pipe body 2 by flow accumulation. When the coal flow rate is greater than the set value, an alarm is issued. The flow meter difference between the detection positions of the upstream transmission belt 101 and the downstream transmission belt 301 is intercepted in real time. If it is greater than the set value, an alarm is issued. The first visual flow meter 401 of the upstream transmission belt 101 simultaneously collects three-dimensional point clouds and judges whether there are large foreign objects that may cause coal blockage through three-dimensional analysis. If large foreign objects are found, an alarm is issued in time.

[0033] To improve accuracy, the first visual flow meter 401 and the second visual flow meter 501 are installed as close to the coal drop pipe body 2 as possible.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for preventing a coal drop pipe from blocking a coal conveying system, comprising an upstream transmission belt (101), a downstream transmission belt (301), and a coal drop pipe body (2) arranged between the upstream transmission belt (101) and the downstream transmission belt (301), characterized in that: A first visual flow meter (401) is provided above the upstream transmission belt (101), and a second visual flow meter (501) is provided above the downstream transmission belt (301); The first visual flow meter (401) and the second visual flow meter (501) are both connected to a server body (6); The first visual flow meter (401) and the second visual flow meter (501) are both composed of two groups of visual detection cameras, which form a binocular machine vision principle, collect three-dimensional point cloud data of coal at the belt detection position in real time, and calculate the instantaneous coal volume and the cumulative coal volume; The first visual flow meter (401) and the second visual flow meter (501) send the collected data to the server body (6) in real time, and the difference in coal flow is calculated by the server body (6).

2. The device for preventing the coal drop pipe from blocking the coal conveying system according to claim 1, characterized in that: The first visual flow meter (401) is fixedly connected to a first mounting frame (4), the first mounting frame (4) is fixedly connected to an upstream transmission device (1), and the upstream transmission belt (101) is arranged on the upstream transmission device (1).

3. The device for preventing the coal drop pipe from blocking the coal conveying system according to claim 2, characterized in that: The second visual flow meter (501) is fixedly connected to a second mounting frame (5), the second mounting frame (5) is fixedly connected to a downstream transmission device (3), and the downstream transmission belt (301) is arranged on the downstream transmission device (3).

4. The device for preventing the coal drop pipe from blocking the coal transportation system according to claim 3, characterized in that: A first cable (601) is connected between the server body (6) and the first visual flow meter (401), and a second cable (602) is connected between the server body (6) and the second visual flow meter (501).

5. The device for preventing the coal drop pipe from blocking the coal conveying system according to claim 4, characterized in that: The first mounting frame (4) is used to provide support for the first cable (601), and the second mounting frame (5) is used to provide support for the second cable (602).

6. The device for preventing the coal drop pipe from blocking the coal conveying system according to claim 1, characterized in that: The server body (6) is provided with a difference threshold value, and when the difference value of the data flow collected by the first visual flow meter (401) and the second visual flow meter (501) is greater than the set difference threshold value, the server body (6) issues an alarm reminder.

7. The device for preventing the coal drop pipe of a coal conveying system from blocking according to claim 1, characterized in that: The first visual flow meter (401) collects three-dimensional point cloud data and detects large foreign objects in real time through three-dimensional analysis. If large foreign objects are detected, the data is transmitted to the server body (6) and an alarm is issued.

8. The device for preventing the coal drop pipe from blocking the coal conveying system according to claim 1, characterized in that: The first visual flow meter (401) and the second visual flow meter (501) are respectively installed directly above the upstream transmission belt (101) and the downstream transmission belt (301), so that the laser lines of the first visual flow meter (401) and the second visual flow meter (501) are respectively irradiated directly above the upstream transmission belt (101) and the downstream transmission belt (301).

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