CN215087953U - Intelligent coal dressing density device - Google Patents
Intelligent coal dressing density device Download PDFInfo
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- CN215087953U CN215087953U CN202121007748.6U CN202121007748U CN215087953U CN 215087953 U CN215087953 U CN 215087953U CN 202121007748 U CN202121007748 U CN 202121007748U CN 215087953 U CN215087953 U CN 215087953U
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Abstract
The utility model discloses an intelligent coal dressing density device, which comprises a medium barrel, a medium pump, a swirler, an arc screen, a linear vibrating screen and a magnetic separator, add dielectric magnet, centrifuge, the shunt, the belt conveyer, densimeter and magnetic substance contain the volume meter, the medium pump passes through the pipeline and is connected with the medium bucket, the swirler passes through the pipeline and is connected with the medium pump, the sieve bend passes through the pipeline and is connected with the swirler, shunt and linear vibration sieve all are located the below of sieve bend, linear vibration sieve and shunt all are connected through pipeline and magnet separator, the magnet separator passes through the pipeline and is connected with the medium bucket, centrifuge is located the linear vibration sieve below, the belt conveyer is located the centrifuge below, it contains the volume meter to be provided with densimeter and magnetic substance on the pipeline between medium pump and the swirler, it installs on-the-spot unmanned overhead traveling crane to add dielectric magnet, it is used for providing the medium in the medium bucket to add dielectric magnet.
Description
Technical Field
The utility model relates to a coal mine production technical field, concretely relates to coal dressing density intelligent device.
Background
The density control of the dense medium coal preparation plant directly influences the stability of the ash content of the clean coal and the yield of the clean coal, and the principle of coal preparation production is to improve the yield of the clean coal as much as possible on the premise of ensuring the ash content of the clean coal. In the whole production process, clean coal ash content is mainly realized by adjusting coal preparation density, and the coal preparation density control determines the separation density of coal in a cyclone, so that the clean coal ash content and the yield are influenced, and therefore, the coal preparation density control is a key link in the coal preparation production process and is the most important link.
The density control of coal preparation at the present stage is relatively extensive, and most density control devices of coal preparation plants can only manually adjust the distribution, water supplement and medium addition by combining the changes and experiences of product ash content and separation density through density control personnel, so that the modes have the problems of density adjustment lag, density instability, large fluctuation of clean coal ash content, large yield loss and the like.
Although the density automatic control realized by the density control systems of a small number of coal preparation plants only solves the problems of automatic control of diversion and water supplement, manual intervention is needed for the medium addition and density determination, the density control fluctuation is still large, advance prejudgment and intelligent control cannot be realized, and the influence of human factors is large. The existing density control device can not realize intelligent control, and due to human intervention, economic benefits of enterprises are lost to different degrees, so that the device is not beneficial to enterprise benefit production and operation.
At the present stage, no cyclone blockage detection device is arranged in a closed control system, so that blockage of the cyclone cannot be timely found, sorting disorder is caused, and the product quality is seriously influenced;
magnetic substance detection devices in the magnetic separation tailings are not arranged in the existing-stage closed control system, and the magnetic substance detection devices cannot be found in time during medium leakage, so that a large amount of medium is wasted, medium consumption is increased, cost is increased, and product quality control is influenced.
The existing-stage secret control system does not realize accurate quantitative addition of the medium, and has no statistics of the addition amount of the medium and no automatic calculation of medium consumption.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an intelligent device of coal dressing density to solve the above-mentioned problem among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
according to the first aspect of the utility model, an intelligent device for coal dressing density comprises a medium barrel, a medium pump, a cyclone, a curved screen, a linear vibrating screen and a magnetic separator, add dielectric magnet, centrifuge, the shunt, the belt conveyer, densimeter and magnetic substance contain the volume meter, the medium pump passes through the pipeline and is connected with the medium bucket, the swirler passes through the pipeline and is connected with the medium pump, the sieve bend passes through the pipeline and is connected with the swirler, shunt and linear vibration sieve all are located the below of sieve bend, linear vibration sieve and shunt all are connected through pipeline and magnet separator, the magnet separator passes through the pipeline and is connected with the medium bucket, centrifuge is located the linear vibration sieve below, the belt conveyer is located the centrifuge below, it contains the volume meter to be provided with densimeter and magnetic substance on the pipeline between medium pump and the swirler, it installs on-the-spot unmanned overhead traveling crane to add dielectric magnet, it is used for providing the medium in the medium bucket to add dielectric magnet.
Further, still include material detection device, material detection device installs on adding the dielectric magnet.
Further, still include the ultrasonic wave level gauge, install the ultrasonic wave level gauge on the medium bucket.
Furthermore, the device also comprises an electric water replenishing valve, and the electric water replenishing valve is arranged on a pipeline between the medium barrel and the medium pump.
Furthermore, the device also comprises a frequency converter, wherein the frequency converter is arranged in the power distribution chamber, and the medium pump is electrically connected with the frequency converter.
Furthermore, the device also comprises a pressure sensor, and the pressure sensor is arranged on a pipeline between the cyclone and the medium pump.
Furthermore, the cyclone device also comprises a blockage sensor, and the outlet of the cyclone device is provided with the blockage sensor.
Further, the magnetic separator also comprises a magnetic object detector, and the magnetic object detector is arranged on the magnetic separator.
Further, still include electric actuator, install electric actuator on the shunt.
Further, the device also comprises an online ash meter, and the belt of the belt conveyor is provided with the online ash meter.
The utility model has the advantages of as follows: the density of the suspension and the content of the magnetic substances in the system are accurately measured through the arrangement of the densimeter and the magnetic substance content meter; in addition, the tracking of coal preparation density change is realized through the arrangement of the densimeter and the magnetic substance content meter, namely the data measured by the densimeter and the magnetic substance content meter, and the advance prejudgment is realized according to the trend; in addition, the device also realizes the following functions that firstly, the density control does not need manual intervention, and the intelligent adjustment is realized; secondly, media are added automatically without manual addition; thirdly, determining the sorting density through an online ash detector; fourthly, tracking density change is realized, and advance prejudgment is realized according to the trend; fifthly, the stability of the density is improved; sixthly, improving the precision of density detection; seventh, the stability and yield of clean coal ash are improved; eighthly, realizing 3D visual display on the density control interface; ninth, automatically detecting the tailing medium running condition of the magnetic separator; tenth, cyclone blockage is automatically detected; eleventh, intelligent judgment of medium addition, automatic counting and automatic calculation of medium consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of an intelligent device for coal preparation density according to some embodiments of the present invention.
Fig. 2 is a schematic structural diagram of a frequency converter installed on a medium pump of an intelligent device for coal preparation density according to some embodiments of the present invention.
Fig. 3 is a schematic structural diagram of the coal preparation density intelligent device according to some embodiments of the present invention, among the splitter, the curved screen and the linear vibrating screen.
Fig. 4 is a schematic structural view of an electric water replenishing valve of an intelligent coal preparation density device according to some embodiments of the present invention.
Fig. 5 is a schematic structural diagram between the centrifuge, the belt conveyor and the on-line ash meter of the coal separation density intelligent device provided by some embodiments of the present invention.
Fig. 6 is a schematic structural diagram of the ultrasonic level meter installed on the medium barrel of the coal preparation density intelligent device provided by some embodiments of the present invention.
Fig. 7 is a schematic structural view of a pressure sensor of an intelligent device for coal preparation density according to some embodiments of the present invention.
Fig. 8 is a schematic structural diagram of a blockage sensor mounted on a cyclone of an intelligent coal preparation density device according to some embodiments of the present invention.
Fig. 9 is a schematic structural view of a material detection device of an intelligent device for coal preparation density according to some embodiments of the present invention.
Fig. 10 is a circuit diagram of an intelligent coal preparation density device according to some embodiments of the present invention.
Fig. 11 is an internal circuit diagram of a first PLC substation of an intelligent coal preparation density device according to some embodiments of the present invention.
Fig. 12 is an internal circuit diagram of a second PLC substation of the coal preparation density intelligentized apparatus according to some embodiments of the present invention.
Fig. 13 is a circuit diagram of an intelligent device for coal preparation density according to some embodiments of the present invention.
In the figure: 1. medium barrel, 2, medium pump, 3, swirler, 4, sieve bend, 5, linear vibrating screen, 6, shunt, 7, magnetic separator, 8, centrifuge, 9, belt conveyer, 10, dielectric magnet, 11, ultrasonic level meter, 12, material detection device, 13, densimeter, 14, magnetic content meter, 15, pressure sensor, 16, blocking sensor, 17, online ash detector, 18, magnetic detector, 19, electric water replenishing valve, 20, first PLC substation, 21, second PLC substation, 22, frequency converter, 23, terminal, 24, electric actuator, 25, internal circuit of first PLC substation, 26, internal circuit of second PLC substation, 27, intelligent density operation station, 28, engineer station, 29, intelligent density control server, 30, printer, 31, Ethernet switch.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 9, an intelligent device for coal separation density in an embodiment of the first aspect of the present invention includes a medium barrel 1, a medium pump 2, a cyclone 3, a curved screen 4, a linear vibrating screen 5, a magnetic separator 7, a dielectric magnet 10, a centrifuge 8, a flow divider 6, a belt conveyer 9, a densimeter 13 and a magnetic content meter 14, the medium pump 2 is connected to the medium barrel 1 through a pipeline, the cyclone 3 is connected to the medium pump 2 through a pipeline, the curved screen 4 is connected to the cyclone 3 through a pipeline, the flow divider 6 and the linear vibrating screen 5 are both located below the curved screen 4, the linear vibrating screen 5 and the flow divider 6 are both connected to the magnetic separator 7 through a pipeline, the magnetic separator 7 is connected to the medium barrel 1 through a pipeline, the centrifuge 8 is located below the linear vibrating screen 5, the belt conveyer 9 is located below the centrifuge 8, the pipeline between the medium pump 2 and the cyclone 3 is provided with the densimeter 13 and the magnetic content meter 14, the dielectric magnet 10 is installed on an unmanned overhead traveling crane in the field, and the dielectric magnet 10 is used to supply the medium into the medium bucket 1.
In the above embodiment, it should be noted that the medium contained in the medium barrel 1 is a three-phase mixed suspension of water, coal slurry and magnetite powder, and the working process of the apparatus is that the three-phase mixed suspension of water, coal slurry and magnetite powder in the qualified medium barrel 1 is fed into the cyclone 3 through the qualified medium pump 2, the raw material coal is fed into the cyclone 3 through the coal feeding port of the cyclone 3 for separation, and three products of clean coal, middlings and gangue are separated, the clean coal is dehydrated and de-media through the sieve bend 4 and the linear vibrating screen 5, the qualified medium screened by the sieve bend 4 can directly return to the qualified medium barrel 1, and can also be fed into the magnetic separator 7 through the splitter 6 for medium recovery, the qualified medium flows back to the qualified medium barrel 1, and the coal slurry is treated by the coal slurry water removing system. The oversize is dewatered by a centrifuge 8, and the dewatered product is conveyed to a clean coal bin by a belt conveyor 9. The medium is added through a manually controlled dielectric adding magnet 10, and the water is supplemented through a valve in front of the control medium pump 2; the densitometer 13 is a differential densitometer.
The technical effects achieved by the above embodiment are as follows: the density of the suspension and the content of the magnetic substances in the system are accurately measured by the arrangement of the densimeter 13 and the magnetic substance content meter 14; besides, the arrangement of the density meter 13 and the magnetic material content meter 14 also realizes the tracking of the coal preparation density change and realizes the advance judgment according to the trend.
Optionally, as shown in fig. 1 and 9, in some embodiments, a material detection device 12 is further included, and the material detection device 12 is mounted on the dielectric magnet 10.
In the above alternative embodiment, it should be noted that the material detection device 12 is a 3D material detection device, and the dielectric magnet 10 is further provided with a load cell.
The beneficial effects of the above alternative embodiment are: the three-dimensional detection is carried out on the stacking condition of the medium by a 3D material detection device, when the medium needs to be added, the dielectric magnet 10 is moved to the highest point of the medium stack by an unmanned overhead traveling crane, and the absorption, the transfer and the addition of the medium are completed; a weighing sensor is arranged on the dielectric magnet 10, so that accurate addition is realized, and meanwhile, the accumulated dielectric amount can be calculated.
Optionally, as shown in fig. 1 and 6, in some embodiments, an ultrasonic liquid level meter 11 is further included, and the ultrasonic liquid level meter 11 is mounted on the medium barrel 1.
The beneficial effects of the above alternative embodiment are: the liquid level change of the medium in the medium barrel 1 can be monitored at any time through the arrangement of the ultrasonic liquid level meter 11, and liquid level data can be obtained.
Optionally, as shown in fig. 1 and 4, in some embodiments, an electric water replenishing valve 19 is further included, and the electric water replenishing valve 19 is installed on a pipeline between the medium barrel 1 and the medium pump 2.
In the above alternative embodiment, it should be noted that the electric water replenishing valve 19 is electrically connected to an external PLC.
The beneficial effects of the above alternative embodiment are: the automatic control of the opening degree of the medium pump 2 is realized through the arrangement of the electric water replenishing valve 19.
Optionally, as shown in fig. 1 and fig. 2, in some embodiments, the power distribution room further includes a frequency converter 22, the medium pump 2, the frequency converter 22 being installed in the power distribution room, and the medium pump 2 and the frequency converter 22 being electrically connected.
The beneficial effects of the above alternative embodiment are: the frequency can be automatically adjusted according to the qualified medium pressure by arranging the frequency converter 22, so that the production requirement is met.
Optionally, as shown in fig. 1 and 7, in some embodiments, a pressure sensor 15 is further included, and the pressure sensor 15 is installed on the pipeline between the cyclone 3 and the medium pump 2.
In the alternative embodiment described above, it should be noted that the pressure sensor 15 is located in the line between the cyclone 3 and the densitometer 13.
The beneficial effects of the above alternative embodiment are: the pressure sensor is arranged to realize real-time monitoring of the pressure of the qualified medium feeding.
Optionally, as shown in fig. 1 and 8, in some embodiments, a blockage sensor 16 is further included, and the blockage sensor 16 is installed at the outlet of the cyclone 3.
The beneficial effects of the above alternative embodiment are: the arrangement of the blockage sensor 16 realizes the real-time monitoring of the working condition of the cyclone 3, and can realize the alarming and the automatic stopping when the cyclone 3 is blocked.
Optionally, as shown in fig. 1 and 5, in some embodiments, a magnetic detector 18 is further included, and the magnetic separator 7 is provided with the magnetic detector 18.
The beneficial effects of the above alternative embodiment are: the content of the medium in the tailings is detected through the arrangement of the magnetic substance detector 18, and alarm reminding is realized when the content exceeds a normal value.
Optionally, as shown in fig. 1 and 3, in some embodiments, an electric actuator 24 is further included, and the shunt 6 is provided with the electric actuator 24.
In the above alternative embodiment, it should be noted that the electric actuator 24 is used to control the opening degree of the flap on the flow divider 6.
The beneficial effects of the above alternative embodiment are: the electrical control of the split flow is achieved by the provision of the electrical actuator 24.
Optionally, as shown in fig. 1 and 5, in some embodiments, an online ash meter 17 is further included, and the online ash meter 17 is mounted on a belt of the belt conveyor 9.
The beneficial effects of the above alternative embodiment are: the real-time monitoring of the ash content of the clean coal product is realized through the arrangement of the online ash detector 17.
Example 2
As shown in fig. 1 and fig. 10 to 13, the coal preparation density intelligent device in this embodiment includes all the technical features of embodiment 1, and in addition, includes a first PLC substation 20, a second PLC substation 21, and a terminal 23, where the first PLC substation 20 and the second PLC substation 21 are electrically connected to the terminal 23, the ultrasonic level meter 11, the density meter 13, the magnetic content meter 14, the pressure sensor, the blockage sensor 16, the online ash meter 17, the magnetic content detector 18, the electric water replenishing valve 19, and the frequency converter 22 are electrically connected to the first PLC substation 20, and the weighing sensors on the unmanned overhead traveling crane, the material detector 12, and the dielectric magnet 10 are electrically connected to the second PLC substation 21.
Preferably, the terminal 23 includes an intelligent density operation station 27, an engineer station 28, an intelligent security control server 29, a printer 30 and an ethernet switch 31; in addition, the circuit part of the present apparatus further includes a first PLC substation internal circuit 25 and a second PLC substation internal circuit 26.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Claims (10)
1. An intelligent coal dressing density device is characterized by comprising a medium barrel (1), a medium pump (2), a cyclone (3), a curved sieve (4), a linear vibrating sieve (5), a magnetic separator (7), a dielectric magnet (10), a centrifugal machine (8), a flow divider (6), a belt conveyor (9), a densimeter (13) and a magnetic content meter (14), wherein the medium pump (2) is connected with the medium barrel (1) through a pipeline, the cyclone (3) is connected with the medium pump (2) through a pipeline, the curved sieve (4) is connected with the cyclone (3) through a pipeline, the flow divider (6) and the linear vibrating sieve (5) are both positioned below the curved sieve (4), the linear vibrating sieve (5) and the flow divider (6) are both connected with the magnetic separator (7) through a pipeline, magnet separator (7) through the pipeline with medium bucket (1) is connected, centrifuge (8) are located linear vibration sieve (5) below, belt conveyer (9) are located centrifuge (8) below, medium pump (2) with be provided with on the pipeline between swirler (3) densimeter (13) with the magnetism thing contains volume meter (14), install on the unmanned overhead traveling crane on scene with dielectric magnet (10), it is used for providing the medium in medium bucket (1) to add dielectric magnet (10).
2. The intelligent coal preparation density device according to claim 1, further comprising a material detection device (12), wherein the material detection device (12) is mounted on the dielectric magnet (10).
3. The intelligent coal preparation density device according to claim 1, further comprising an ultrasonic liquid level meter (11), wherein the ultrasonic liquid level meter (11) is mounted on the medium barrel (1).
4. The intelligent coal preparation density device according to claim 1, further comprising an electric water replenishing valve (19), wherein the electric water replenishing valve (19) is installed on a pipeline between the medium barrel (1) and the medium pump (2).
5. The intelligent coal preparation density device according to claim 1, further comprising a frequency converter (22), wherein the frequency converter (22) is installed in a power distribution room, and the medium pump (2) is electrically connected with the frequency converter (22).
6. A coal dressing density intelligent device according to claim 1, characterized by further comprising a pressure sensor (15), wherein the pressure sensor (15) is mounted on the pipeline between the cyclone (3) and the medium pump (2).
7. A coal dressing density intelligent device according to claim 1, characterized by further comprising a blockage sensor (16), wherein the blockage sensor (16) is installed at the outlet of the cyclone (3).
8. The intelligent coal dressing density device according to claim 1, characterized by further comprising a magnetic detector (18), wherein the magnetic detector (18) is mounted on the magnetic separator (7).
9. The intelligent coal preparation density device according to claim 1, further comprising an electric actuator (24), wherein the electric actuator (24) is mounted on the flow divider (6).
10. The intelligent coal preparation density device according to claim 1, further comprising an online ash meter (17), wherein the online ash meter (17) is mounted on a belt of the belt conveyor (9).
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| CN202121007748.6U CN215087953U (en) | 2021-05-12 | 2021-05-12 | Intelligent coal dressing density device |
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| CN202121007748.6U CN215087953U (en) | 2021-05-12 | 2021-05-12 | Intelligent coal dressing density device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117920476A (en) * | 2024-03-21 | 2024-04-26 | 山西汾西矿业（集团）有限责任公司曙光煤矿 | Pre-medium removing device of dense medium cyclone coal preparation system |
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2021
- 2021-05-12 CN CN202121007748.6U patent/CN215087953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117920476A (en) * | 2024-03-21 | 2024-04-26 | 山西汾西矿业（集团）有限责任公司曙光煤矿 | Pre-medium removing device of dense medium cyclone coal preparation system |
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