CN219210271U - Device for automatically collecting flotation tailing images - Google Patents

Abstract

The utility model provides a device for automatically collecting flotation tailing images, which comprises a coal slurry barrel and a Labview upper computer, wherein a light source and an industrial camera are arranged above the inside of the coal slurry barrel, a feed inlet of the coal slurry barrel is connected with an outlet of a tailing pond through a feed pipeline, a conveying pump is arranged on the feed pipeline, a discharge outlet of the coal slurry barrel is connected with an inlet of the tailing pond through a discharge pipeline, the conveying pump, the light source and the industrial camera are electrically connected with a PLC (programmable logic controller), and the Labview upper computer is connected with the industrial camera and is communicated with the PLC. The coal slurry image acquisition device is simple in structure, reasonable in design, capable of acquiring the coal slurry image in real time according to the needs, capable of improving the data acquisition efficiency and beneficial to industrial production and use.

Description

Device for automatically collecting flotation tailing images

Technical Field

The utility model belongs to the technical field of flotation tailing coal mines, and particularly relates to a device for automatically collecting images of flotation tailing.

Background

Flotation is one of the most effective sorting methods for treating fine coal at present, and plays a very important role in improving the economic benefit of coal preparation plants. Along with the continuous improvement of the automation whole level of the industrial process, the automatic control and intelligent control of the coal slime flotation process are also receiving more and more attention. One of key links of intelligent control of the flotation process is to realize online detection of product quality, including flotation clean coal and tail coal. However, the lack of related detection technology and sensors severely limits the intelligent development of flotation. Quality inspection studies of flotation products have been concentrated on flotation of clean coal, but neglecting flotation of tailing. The quality of the flotation tail coal is taken as important feedback information, and has a vital effect on realizing closed-loop optimization control of the flotation process.

The tailing ash is taken as important feedback information, is an important basis for realizing closed-loop optimization control of the coal slime flotation process, is relatively backward in detection means of parameters such as tailing ash, foam characteristics and the like in the flotation process in the field, mainly depends on manual measurement, and in the actual production process of coal slime flotation, on-site operators mainly depend on naked eye visual measurement of tailing coal color to judge ash, and meanwhile, whether the flotation tailings have a coarse problem or not is judged through hand grasping feeling, so that quantitative description of the variable parameters is difficult to obtain. Because of the lack of these process variables or difficulty in quantifying these variables, when the flotation reagent is regulated, the flotation froth, the tailing information and other process variables are needed to be obtained by means of analysis and observation of a flotation driver according to own experience, and are used as the basis for reagent regulation, so that the accurate addition of reagent addition amount and the flotation effect are difficult to be ensured. The ash detection of the coal slurry can only be completed through an ash instrument with radioactivity, and the ash detection instrument is high in price, and a detection mode without radioactivity and relatively low in cost is lacking. With the improvement of computer technology and coal preparation automation technology, the application of the image analysis technology in the field of coal preparation flotation automation becomes possible. And the ore pulp in the tailing box is directly photographed, so that the tailing image which can be used for analysis is difficult to obtain due to the problems of interference of external light, unstable liquid level, inconvenient installation of photographing equipment and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the device for automatically collecting the flotation tailing images, which can collect the coal slurry images in real time according to the needs, improves the data acquisition efficiency and is beneficial to industrial production and use.

The technical scheme provided by the utility model is as follows: the utility model provides an automatic flotation tailing image acquisition device, includes coal slurry barrel and Labview host computer, the inside top of coal slurry barrel is provided with light source and industry camera, the feed inlet of coal slurry barrel passes through the exit linkage of feed pipeline and tailing pond, be provided with the delivery pump on the feed pipeline, the bottom discharge gate of coal slurry barrel passes through the entrance linkage of discharge pipeline and tailing pond, delivery pump, light source and industry camera and PLC controller electric connection, labview host computer is connected with industry camera and is connected with the PLC controller communication, realizes data communication and image acquisition.

Further, be provided with first limit switch and second limit switch in the coal slurry barrel, first limit switch is used for judging whether the coal slurry liquid level reaches the position of can shooing, second limit switch is used for preventing that the too fast equipment in the probably pollution coal slurry barrel of feeding.

Further, an overflow port is formed in the side face of the coal slurry barrel between the mounting heights of the first limit switch and the second limit switch, and the overflow port is communicated with the discharge pipeline through an overflow pipeline.

Further, the first limit switch and the second limit switch are respectively and electrically connected with the PLC.

Further, two light sources are arranged, the two light sources are respectively positioned at two sides of the industrial camera, a cooling fan is arranged above the industrial camera, and the cooling fan is electrically connected with the PLC.

Further, a light intensity sensor is arranged on the inner wall of the coal slurry cylinder body and used for measuring the intensity of light, and the light intensity sensor is electrically connected with the PLC.

Further, a discharge valve is arranged on the discharge pipeline.

Further, a light shield is arranged outside the coal slurry cylinder body to avoid the influence of an external light source.

Further, an electric stirring device is arranged in the coal slurry cylinder and is electrically connected with the PLC.

Aiming at the defects that the measurement process of a laboratory device of a tailing image acquisition system is discontinuous and manual acquisition is needed, the utility model designs the device for automatically acquiring the tailing coal slurry image, which is mainly different from the laboratory device in that the automatic extraction and discharge of the tailing coal slurry are newly added, so that the whole image acquisition process is more real-time, the data acquisition efficiency is improved, and the device is beneficial to industrial production and use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure: 1-coal slurry cylinder, 2-Labview upper computer, 3-light source, 4-industrial camera, 5-feeding pipeline, 6-tailing pond, 7-delivery pump, 8-discharge pipeline, 9-PLC controller, 10-first limit switch, 11-second limit switch, 12-overflow pipeline, 13-radiator fan, 14-light intensity sensor, 15-discharge valve.

Detailed Description

The present utility model will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are shown in schematic, rather than physical, drawings, and are not to be construed as limiting the utility model, and wherein certain components of the drawings are omitted, enlarged or reduced in size, and do not represent the actual product size, so it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, and that all other embodiments obtained by those of ordinary skill in the art without making inventive efforts, based on the embodiments of the present utility model, are within the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "front", "rear", "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The device for automatically collecting flotation tailing images shown in fig. 1 comprises a coal slurry barrel 1 and a Labview upper computer 2, wherein a light source 3 and an industrial camera 4 are arranged above the inside of the coal slurry barrel 1, a feed inlet of the coal slurry barrel 1 is connected with an outlet of a tailing pond 6 through a feed pipeline 5, a conveying pump 7 is arranged on the feed pipeline 5, a bottom discharge outlet of the coal slurry barrel 1 is connected with an inlet of the tailing pond 6 through a discharge pipeline 8, the conveying pump 7, the light source 3 and the industrial camera 4 are electrically connected with a PLC (programmable logic controller) 9, and the Labview upper computer 2 is connected with the industrial camera 4 and is in communication connection with the PLC 9.

The coal slurry barrel 1 is internally provided with a first limit switch 10 and a second limit switch 11, the first limit switch 10 is used for judging whether the liquid level of the coal slurry reaches a photographable position, and the second limit switch 11 is used for preventing equipment in the coal slurry barrel from being polluted due to too fast feeding.

An overflow port is formed in the side face of the coal slurry barrel 1 between the mounting heights of the first limit switch 10 and the second limit switch 11, and the overflow port is communicated with the discharge pipeline 8 through an overflow pipeline 12.

The first limit switch 10 and the second limit switch 11 are respectively electrically connected with the PLC controller 9.

The two light sources 3 are symmetrically arranged on two sides of the industrial camera 4 respectively, and the light intensity of the surface of the coal slurry to be measured is ensured to be fixed by reasonably arranging the light sources.

A cooling fan 13 is arranged above the industrial camera 4, and the cooling fan 13 is electrically connected with the PLC controller 9. The cooling fan 13 dissipates heat for the industrial camera 4, ensures long-time normal operation of the industrial camera, and prolongs the service life of the camera.

The discharge pipeline 8 is provided with a discharge valve 15. The outside of the coal slurry barrel 1 is provided with a light shield for avoiding the influence of an external light source. An electric stirring device is arranged in the coal slurry cylinder body 1 and is electrically connected with the PLC 9.

In one embodiment, a light intensity sensor 14 is installed on the inner wall of the coal slurry barrel 1 to measure the intensity of light, and the light intensity sensor 14 is electrically connected with the PLC controller 9. The illumination intensity is supplemented by the two light sources 3, the image acquisition is started when the light intensity is stable, and meanwhile, the light source brightness can be properly adjusted according to the light intensity, so that the environmental light condition is ensured to be unchanged.

When the coal slurry image acquisition device is specifically used, the Labview upper computer 2 is used for storing coal slurry images and processing the images, the feeding process and the discharging process are controlled by the PLC 9, and the image acquisition process is controlled by the Labview upper computer 2;

step one: a feeding process;

starting a conveying pump 7 through a PLC (programmable logic controller) 9, collecting tailings from a tailing pond 6 into a coal slurry barrel 1, conveying the tailings through a feeding pipeline 5, and overflowing the excessive coal slurry from an overflow pipeline 12 when the liquid level of the tailings exceeds the overflow port position so as to keep the liquid level stable at the height, wherein the feeding process of the coal slurry is realized;

step two: an image acquisition process;

when the coal slurry liquid level reaches the first limit switch 10, the first limit switch 10 transmits an electric signal to the PLC 9, the PLC 9 starts timing for 3 minutes after receiving the signal, the timing end can be regarded as liquid level stabilization, the timing end can be regarded as the liquid level stabilization, the signal is transmitted to the Labview upper computer 2 through the PLC 9, the industrial camera 4 starts to collect images, the industrial camera 4 is also provided with the cooling fan 13, because the image effect can be poor in the collecting process, a mode of 5s1 sheets and 2 minutes is adopted, and the images are stored in the industrial computer according to a designated path, and the process is completed by the Labview upper computer 2, namely the image collecting process; the first limit switch 10 is mainly used for judging whether the coal slurry level reaches a photographable position; the second limit switch 11 mainly prevents the equipment such as a lens or a camera from being polluted due to too fast feeding, when the coal slurry reaches the second limit switch 11, the feeding of the conveying pump 7 is stopped, the discharge valve 15 is opened, the coal slurry is discharged through the discharge pipeline 8, and when the liquid level of the coal slurry is lower than that of the first limit switch 10, the discharge valve 15 is closed again;

step three: discharging;

after the image acquisition, the discharging valve 15 is opened through the PLC 9, the coal slurry in the coal slurry cylinder 1 is discharged, the conveying pump is started, the interval is 3-5 minutes, and the discharging valve 15 is closed, so that the discharging process is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. An automatic collect flotation tailing image's device, its characterized in that: the coal slurry treatment device comprises a coal slurry barrel (1) and a Labview upper computer (2), wherein a light source (3) and an industrial camera (4) are arranged above the inside of the coal slurry barrel (1), a feed inlet of the coal slurry barrel (1) is connected with an outlet of a tailing pond (6) through a feed pipeline (5), a delivery pump (7) is arranged on the feed pipeline (5), a discharge outlet at the bottom of the coal slurry barrel (1) is connected with an inlet of the tailing pond (6) through a discharge pipeline (8), the delivery pump (7), the light source (3) and the industrial camera (4) are electrically connected with a PLC (9), and the Labview upper computer (2) is connected with the industrial camera (4) and is in communication connection with the PLC (9);

a first limit switch (10) and a second limit switch (11) are arranged in the coal slurry barrel (1), the first limit switch (10) is used for judging whether the liquid level of the coal slurry reaches a photographable position, and the second limit switch (11) is used for preventing equipment in the coal slurry barrel from being polluted due to too fast feeding;

an overflow port is formed in the side face of the coal slurry barrel (1) between the mounting heights of the first limit switch (10) and the second limit switch (11), and the overflow port is communicated with the discharge pipeline (8) through an overflow pipeline (12).

2. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: the first limit switch (10) and the second limit switch (11) are respectively and electrically connected with the PLC (9).

3. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: the LED display device is characterized in that two light sources (3) are arranged, the two light sources (3) are symmetrically arranged on two sides of the industrial camera (4), a cooling fan (13) is arranged above the industrial camera (4), and the cooling fan (13) is electrically connected with the PLC (9).

4. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: the inner wall of the coal slurry barrel body (1) is provided with a light intensity sensor (14) for measuring the intensity of light, and the light intensity sensor (14) is electrically connected with the PLC (9).

5. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: a discharge valve (15) is arranged on the discharge pipeline (8).

6. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: a light shield is arranged outside the coal slurry barrel (1) to avoid the influence of an external light source.

7. The apparatus for automatically acquiring images of flotation tailings according to claim 1, wherein: an electric stirring device is arranged in the coal slurry cylinder (1), and the electric stirring device is electrically connected with a PLC (programmable logic controller) 9.

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